A sporting apparatus includes a monitoring device. The monitoring device may add no weight to the sporting apparatus relative to a comparable sporting apparatus without the monitoring device. The monitoring device may have a center of gravity substantially aligning with the center of gravity of the sporting apparatus, resulting in a sporting apparatus with a monitor having substantially the same center of gravity as a comparable sporting apparatus without a monitor. The sporting apparatus monitor may be configured to trim unreliable post impact swing data and replace it with extrapolated pre-impact swing data and/or more reliable post impact swing data.
A63B 60/02 - Ballast means for adjusting the centre of mass
A63B 60/46 - Measurement devices associated with golf clubs, bats, rackets or the like for measuring physical parameters relating to sporting activity, e.g. baseball bats with impact indicators or bracelets for measuring the golf swing
A63B 60/50 - Details or accessories of golf clubs, bats, rackets or the like with through-holes
A63B 60/54 - Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
A63B 69/00 - Training appliances or apparatus for special sports
A63B 69/36 - Training appliances or apparatus for special sports for golf
A63B 69/38 - Training appliances or apparatus for special sports for tennis
A63B 71/06 - Indicating or scoring devices for games or players
A63B 71/14 - Body-protectors for players or sportsmen for the hands, e.g. baseball, boxing, or golfing gloves
G06Q 10/0639 - Performance analysis of employeesPerformance analysis of enterprise or organisation operations
G06V 40/20 - Movements or behaviour, e.g. gesture recognition
G09B 19/00 - Teaching not covered by other main groups of this subclass
G16H 20/30 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
H04M 1/72412 - User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories using two-way short-range wireless interfaces
2.
System, method, and apparatus for monitoring sporting apparatus and users thereof
A system may comprise one or more monitoring devices that may communicate with a mobile device or a wearable device worn by a user of a sporting apparatus. The system may enable motion data specific to motion of the sporting apparatus to be conveniently captured and transmitted, and displayed on the wearable device. The system may include functionality to permit disablement of the motion detecting, transmission, and/or displaying functions at times when such functions are not permitted to be used, and to record the date, time, and location when such functions have been disabled to permit verification thereof by a governing body or sporting organization. The system may further include a learning module enabling monitored motion of the object to be correlated to monitored motion of the user such that predictive motion of the sporting object based only on monitored motion of the user may be obtained and displayed.
A63B 71/06 - Indicating or scoring devices for games or players
A63B 24/00 - Electric or electronic controls for exercising apparatus of groups
A63B 69/00 - Training appliances or apparatus for special sports
G06F 1/3206 - Monitoring of events, devices or parameters that trigger a change in power modality
G06F 3/00 - Input arrangements for transferring data to be processed into a form capable of being handled by the computerOutput arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G06Q 10/0639 - Performance analysis of employeesPerformance analysis of enterprise or organisation operations
G09B 19/00 - Teaching not covered by other main groups of this subclass
A sporting apparatus includes a monitoring device. The monitoring device may add no weight to the sporting apparatus relative to a comparable sporting apparatus without the monitoring device. The monitoring device may have a center of gravity substantially aligning with the center of gravity of the sporting apparatus, resulting in a sporting apparatus with a monitor having substantially the same center of gravity as a comparable sporting apparatus without a monitor. The sporting apparatus monitor may be configured to trim unreliable post impact swing data and replace it with extrapolated pre-impact swing data and/or more reliable post impact swing data.
A63B 60/46 - Measurement devices associated with golf clubs, bats, rackets or the like for measuring physical parameters relating to sporting activity, e.g. baseball bats with impact indicators or bracelets for measuring the golf swing
A63B 69/00 - Training appliances or apparatus for special sports
A63B 71/06 - Indicating or scoring devices for games or players
G06Q 10/0639 - Performance analysis of employeesPerformance analysis of enterprise or organisation operations
G09B 19/00 - Teaching not covered by other main groups of this subclass
A63B 69/36 - Training appliances or apparatus for special sports for golf
A63B 60/02 - Ballast means for adjusting the centre of mass
A63B 60/50 - Details or accessories of golf clubs, bats, rackets or the like with through-holes
G16H 20/30 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
H04M 1/72412 - User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories using two-way short-range wireless interfaces
G06V 40/20 - Movements or behaviour, e.g. gesture recognition
A63B 69/38 - Training appliances or apparatus for special sports for tennis
A63B 71/14 - Body-protectors for players or sportsmen for the hands, e.g. baseball, boxing, or golfing gloves
A63B 60/54 - Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
4.
System, method, and apparatus for monitoring sporting apparatus and users thereof
A system may comprise one or more monitoring devices that may communicate with a mobile device or a wearable device worn by a user of a sporting apparatus. The system may enable motion data specific to motion of the sporting apparatus to be conveniently captured and transmitted, and displayed on the wearable device. The system may include functionality to permit disablement of the motion detecting, transmission, and/or displaying functions at times when such functions are not permitted to be used, and to record the date, time, and location when such functions have been disabled to permit verification thereof by a governing body or sporting organization. The system may further include a learning module enabling monitored motion of the object to be correlated to monitored motion of the user such that predictive motion of the sporting object based only on monitored motion of the user may be obtained and displayed.
A63B 71/06 - Indicating or scoring devices for games or players
A63B 69/00 - Training appliances or apparatus for special sports
A63B 24/00 - Electric or electronic controls for exercising apparatus of groups
G06F 1/3206 - Monitoring of events, devices or parameters that trigger a change in power modality
G06F 3/00 - Input arrangements for transferring data to be processed into a form capable of being handled by the computerOutput arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
G09B 19/00 - Teaching not covered by other main groups of this subclass
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G06Q 10/06 - Resources, workflows, human or project managementEnterprise or organisation planningEnterprise or organisation modelling
A golf club head includes a striking face, a sole portion, a top portion, a hosel, a rear surface, a loft no less than 40°, a virtual vertical plane, and a center of gravity. The striking face has a face center, a leading edge, and a virtual striking face plane. The hosel includes an internal bore configured to receive a golf shaft and includes a peripheral side wall and a shaft abutment surface configured to abut a tip end of the golf shaft. The rear surface is opposite the striking face and has an upper portion and a lower portion, the lower portion including a forward-extending recess. The insert covers the recess forming a hollow portion. The virtual vertical plane is perpendicular to the striking face plane and passes through the face center. The center of gravity is spaced a distance from the virtual vertical plane in the heel-to-toe direction.
A grip for a putter-type golf club including a bottom end having a recess to receive a golf shaft, and a top end opposite the bottom end. The recess defines a longitudinal axis, and an exterior side surface extends about the circumference of the longitudinal axis. The exterior side surface defines a generally planar portion and a generally arcuate portion adjoining the planar portion. A grip cross-section no greater than 15 mm from the top end includes a planar portion cross-sectional width no less than 4 mm, a first cross-sectional length, L1, and a maximum cross-sectional width located at a depth D1 from the planar portion such that D1/L1 is no greater than 0.40. According to another aspect, a grip cross-section between 120 mm and 140 mm from the top end includes a cross-sectional maximum width, W3, and a cross-sectional length, L3, such that W3/L3 is no greater than 0.90.
A golf club head has a striking face with a plurality of scorelines including a first scoreline and a second scoreline adjacent thereto. The striking face also has a plurality of auxiliary grooves each spaced from the scorelines. In a first imaginary vertical plane, a first path is formed by a first intersection between the first imaginary vertical plane and the striking face, and the auxiliary grooves have a first concentration no less than 0.17 measured between the first and second scorelines. A second imaginary vertical plane is horizontally spaced from the first imaginary plane. A second path is formed in the second imaginary vertical plane by a second intersection between the second imaginary vertical plane and the striking face. The auxiliary grooves in the second imaginary vertical plane have a second concentration that is different from the first concentration measured between the first and second scorelines.
A63B 60/00 - Details or accessories of golf clubs, bats, rackets or the like
B23K 26/359 - Working by laser beam, e.g. welding, cutting or boring for surface treatment by providing a line or line pattern, e.g. a dotted break initiation line
B23K 26/364 - Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
11.
Golf club head having texture pattern and method for producing the same
Provided are a golf club head and a method for producing the golf club head. The golf club head comprises a striking face that in turn comprises a recurrent texture pattern that has a period T and that is defined by a plurality of depressions, each depression having an average depth no greater than 0.10 mm. The striking face also comprises a plurality of scorelines that at least partially intersect the recurrent texture pattern and that have a scoreline pitch Ps such that T/Ps is greater than 1.0, each scoreline having an average depth no less than 0.10 mm.
A system may comprise one or more monitoring devices that may communicate with a mobile device or a wearable device worn by a user of a sporting apparatus. The system may enable motion data specific to motion of the sporting apparatus to be conveniently captured and transmitted, and displayed on the wearable device. The system may include functionality to permit disablement of the motion detecting, transmission, and/or displaying functions at times when such functions are not permitted to be used, and to record the date, time, and location when such functions have been disabled to permit verification thereof by a governing body or sporting organization. The system may further include a learning module enabling monitored motion of the object to be correlated to monitored motion of the user such that predictive motion of the sporting object based only on monitored motion of the user may be obtained and displayed.
A63B 71/06 - Indicating or scoring devices for games or players
A63B 69/00 - Training appliances or apparatus for special sports
A63B 24/00 - Electric or electronic controls for exercising apparatus of groups
G06F 1/3206 - Monitoring of events, devices or parameters that trigger a change in power modality
G06F 3/00 - Input arrangements for transferring data to be processed into a form capable of being handled by the computerOutput arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
G09B 19/00 - Teaching not covered by other main groups of this subclass
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G06Q 10/06 - Resources, workflows, human or project managementEnterprise or organisation planningEnterprise or organisation modelling
A racket frame has an inner thick part (28) having an outer surface (12), an inner surface (14) and a pair of middle surfaces (16) each positioned between the outer surface (12) and the inner surface (14). A thickness (Ti) of the inner surface (14) is greater than a thickness (To) of the outer surface (12). A thickness of the inner thick part (28) gradually increases toward the inside. Consequently, the middle surface (16) is inclined with respect to an X direction. A distance (Ld) between an outer end and an inner end in a thickness direction of the middle surface (16) is equal to or greater than 0.5 mm.
A golf ball includes a spherical core, and a cover covering the spherical core. The spherical core is formed from a rubber composition including a base rubber, a co-cross-linking agent, a cross-linking initiator, and an unsaturated fatty acid and/or a metal salt thereof, the co-cross-linking agent includes α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof, the unsaturated fatty acid and/or metal salt thereof excludes an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and a metal salt thereof, an unsaturated aliphatic carboxylic acid that forms the unsaturated fatty acid and/or metal salt thereof has a functional group other than a carboxy group and a carbon-carbon unsaturated bond, and the rubber composition further includes a metal compound when the co-cross-linking agent is only an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms.
A golf club head includes a striking face, a sole portion, a top portion, a hosel, a rear surface, a loft no less than 40°, a virtual vertical plane, and a center of gravity. The striking face has a face center, a leading edge, and a virtual striking face plane. The hosel includes an internal bore configured to receive a golf shaft and includes a peripheral side wall and a shaft abutment surface configured to abut a tip end of the golf shaft. The rear surface is opposite the striking face and has an upper portion and a lower portion, the lower portion including a forward-extending recess. The insert covers the recess forming a hollow portion. The virtual vertical plane is perpendicular to the striking face plane and passes through the face center. The center of gravity is spaced a distance from the virtual vertical plane in the heel-to-toe direction.
A golf club head includes a striking face having a face center and a virtual striking face plane generally parallel to the striking face. The golf club head further includes a sole portion, a top portion, a rear portion, and a loft L no less than 40°. A virtual vertical plane perpendicular to the striking face plane passes through the face center. A club head center of gravity is spaced from the virtual vertical plane in the heel-to-toe direction by a distance D1 that is no greater than 6.0 mm. The golf club head further includes a hosel including an internal bore configured to receive a golf shaft. The internal bore includes a peripheral side wall and a shaft abutment surface configured to abut a tip end of the golf club shaft. The hosel further comprises an auxiliary recess extending sole-ward from the abutment surface of the internal bore.
A sporting apparatus includes a monitoring device. The monitoring device may add no weight to the sporting apparatus relative to a comparable sporting apparatus without the monitoring device. The monitoring device may have a center of gravity substantially aligning with the center of gravity of the sporting apparatus, resulting in a sporting apparatus with a monitor having substantially the same center of gravity as a comparable sporting apparatus without a monitor. The sporting apparatus monitor may be configured to trim unreliable post impact swing data and replace it with extrapolated pre-impact swing data and/or more reliable post impact swing data.
A63B 60/46 - Measurement devices associated with golf clubs, bats, rackets or the like for measuring physical parameters relating to sporting activity, e.g. baseball bats with impact indicators or bracelets for measuring the golf swing
A63B 69/00 - Training appliances or apparatus for special sports
A63B 71/06 - Indicating or scoring devices for games or players
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
G06Q 10/06 - Resources, workflows, human or project managementEnterprise or organisation planningEnterprise or organisation modelling
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G09B 19/00 - Teaching not covered by other main groups of this subclass
A putter-type golf club head that, when oriented in a reference position, includes a rear portion in communication with, and rearward of, a blade portion and having a rear portion top surface. The club head also includes a projection extending upwardly from the rear portion top surface, the projection having a projection top surface, a heel-ward side surface, a toe-ward side surface, and a rear surface, the projection top surface comprising a generally planar surface. And the club head further includes a sightline formed in the projection top surface and that comprises a groove at least partially filled with a filler material having a visually contrasting appearance to portions of the top surface surrounding the groove, the groove defining a virtual center line segment oriented in a substantially front-to-rear direction at a substantially constant height from a lowermost point of the sole between 16 mm and 26 mm.
A system may comprise one or more monitoring devices that may communicate with a mobile device or a wearable device worn by a user of a sporting apparatus. The system may enable motion data specific to motion of the sporting apparatus to be conveniently captured and transmitted, and displayed on the wearable device. The system may include functionality to permit disablement of the motion detecting, transmission, and/or displaying functions at times when such functions are not permitted to be used, and to record the date, time, and location when such functions have been disabled to permit verification thereof by a governing body or sporting organization. The system may further include a learning module enabling monitored motion of the object to be correlated to monitored motion of the user such that predictive motion of the sporting object based only on monitored motion of the user may be obtained and displayed.
G06F 3/00 - Input arrangements for transferring data to be processed into a form capable of being handled by the computerOutput arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
A63B 24/00 - Electric or electronic controls for exercising apparatus of groups
G06Q 10/06 - Resources, workflows, human or project managementEnterprise or organisation planningEnterprise or organisation modelling
A sporting apparatus includes a monitoring device. The monitoring device may add no weight to the sporting apparatus relative to a comparable sporting apparatus without the monitoring device. The monitoring device may have a center of gravity substantially aligning with the center of gravity of the sporting apparatus, resulting in a sporting apparatus with a monitor having substantially the same center of gravity as a comparable sporting apparatus without a monitor. The sporting apparatus monitor may be configured to trim unreliable post impact swing data and replace it with extrapolated pre-impact swing data and/or more reliable post impact swing data.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
G06Q 10/06 - Resources, workflows, human or project managementEnterprise or organisation planningEnterprise or organisation modelling
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G09B 19/00 - Teaching not covered by other main groups of this subclass
A63B 69/36 - Training appliances or apparatus for special sports for golf
A63B 60/02 - Ballast means for adjusting the centre of mass
A63B 60/46 - Measurement devices associated with golf clubs, bats, rackets or the like for measuring physical parameters relating to sporting activity, e.g. baseball bats with impact indicators or bracelets for measuring the golf swing
A63B 60/50 - Details or accessories of golf clubs, bats, rackets or the like with through-holes
A63B 69/00 - Training appliances or apparatus for special sports
A63B 69/38 - Training appliances or apparatus for special sports for tennis
A63B 71/06 - Indicating or scoring devices for games or players
A63B 71/14 - Body-protectors for players or sportsmen for the hands, e.g. baseball, boxing, or golfing gloves
A63B 60/54 - Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
[Problem] To provide a golf glove having a good wearing feeling. [Solution] A back member of a golf glove comprises a main part 10. The main part 10 comprises a base layer 34 and a constraint layer 36. The base layer 34 extends over the whole main part 10. The base layer 34 is formed of tricot. The constraint layer 36 is laminated on the base layer 34 and bonded to the base layer 34. The constraint layer 36 partly covers the base layer 34. In the main part 10, an area wherein the base layer 34 is covered with the constraint layer 36 and an area wherein the base layer 34 is not covered with the constraint layer 36 coexist. The constraint layer 36 is formed of a resin film. The constraint layer 36 is less stretchable than the base layer 34 and, therefore, the constraint layer 36 can constrain the extension of the base layer 34.
[Problem] To provide a golf ball having exceptional flying distance, approach performance, and hitting sensation. [Solution] This ball (2) is provided with a core (4), a middle layer (6), and a cover (8). The core (4) has an inner core (10) and an outer core (12). The cover (8) has an inner layer cover (10) and an outer layer cover (12). The inner core volume (Vc), the middle layer volume (Vm), the middle layer hardness (Hm), the inner cover volume (Vinc), the inner cover hardness (Hinc), the outer cover volume (Vouc), the outer cover hardness (Houc), and the ball volume (V) satisfy the following relational expressions (a) to (g). (a) Vc/V ឬ 0.07, (b) Hm ᡶ Hinc ᡶ Houc, (c) Hm – Houc ᡶ 25, (d) Vm ᡶ Vinc ᡶ Vouc, (e) (Vm + Vinc + Vouc)/V ឬ 0.30, (f) Vm/Vouc ᡶ 1.50, (g) (Vm • Hm)/(Vouc • Houc) ᡶ 3.0
Provided is a golf club in which the rotation position of an adapter can be seen without disassembling a structure via which a shaft and a golf club head are connected. The golf club is provided with: a shaft; a golf club head having a hosel part; a first adapter accommodated in the interior space of the hosel part from an attachment hole in the hosel part via which the shaft is attached; a second adapter in which a through-hole through which the first adapter passes is formed, at least a part of the second adapter being disposed externally with respect to the attachment hole; and a securing member for detachably securing the first adapter in the interior space of the hosel part. The shaft is connected so as to be inclined in relation to the first adapter, the first adapter being connected so as to be inclined in relation to the second adapter; and the first adapter and the second adapter are connected so as to be capable of rotating about an axis.
[Problem] To provide a golf ball exhibiting high carry performance, excellent approach performance, and an excellent stroke sensation. [Solution] A golf ball is provided with a spherical core, an intermediate layer, an inner-layer cover, and an outer-layer cover. The hardness (Hm) of the intermediate layer is greater than the hardness (Hinc) of the inner-layer cover. The hardness (Hinc) of the inner-layer cover is greater than the hardness (Houc) of the outer-layer cover. The difference (Hm-Houc) between the hardness of the intermediate layer and the hardness of the outer-layer cover is greater than 25. The volume (Vm) of the intermediate layer is greater than the volume (Vinc) of the inner-layer cover. The volume (Vinc) of the inner-layer cover is greater than the volume (Vouc) of the outer-layer cover. The ratio [(Vm+Vinc+Vouc)/V] of the sum (Vm+Vinc+Vouc) of the volumes of the intermediate layer, the inner-layer cover, and the outer-layer cover, to the volume (V) of the entire golf ball is less than 0.30. The ratio (Vm/Vouc) of the volume of the intermediate layer to the volume of the outer-layer cover is greater than 1.50. The product (Vm∙Hm) of the volume and hardness of the intermediate layer, and the product (Vouc∙Houc) of the volume and hardness of the outer-layer cover satisfy the relationship [(Vm∙Hm)/(Vouc∙Houc)] > 3.0.
In a golf club related to one aspect of the present invention, by coupling a first connecting portion of a first adapter, which is secured to a shaft, with a hosel first connecting portion of a golf club head so as to be non-rotatable about an axis thereof, the shaft is attached to the golf club head so as to be incapable of rotation about the axis. As a result, the second adapter coupled to the first adapter at least need not be configured to be non-rotatable about the axis, and therefore, it is possible to increase the degree of freedom of design for the adapters.
This golf club is provided with a shaft, a golf club head, a first adapter, a second adapter, and a securing member which secures the first adapter to an internal space within a hosel part. In addition, the shaft is configured to be coupled to be inclined with respect to a connecting portion of the first adapter, and the first adapter is configured to be coupled to be inclined with respect to the second adapter.
[Problem] To provide a golf clubhead for an iron and a golf club set that can reduce resistance with respect to the ground and increase the amount of backspin. [Solution] The present invention is a golf clubhead for an iron having a top face, a sole, a toe that connects therebetween, and a face that strikes a ball, wherein the sole comprises, with a visible boundary line extending in the toe-heel direction as the apex, a leading face that is inclined to the face side in the face-back direction, and a trailing face that is inclined to the back side.
[Problem] To provide a method for storing hollow balls easily and inexpensively. [Solution] This hollow ball storage method comprises: (1) a step for placing hollow balls (4), which have an outer shell and a space covered by said outer shell, in a holding section (6); (2) a step for reducing the temperature of the hollow balls (4) below the external air temperature; and (3) a step for storing the hollow balls with the temperature of the hollow balls (4) reduced below the external air temperature. Preferably, the storage method also comprises (4) a step for increasing the temperature of the hollow balls (4) after Step (3). Preferably, in step (4), the temperature of the hollow balls (4) is increased to a temperature exceeding the dew point of the external air.
A hollow golf club head having face end and tail ends, a strike face at the face end, a crown, a sole, and a structural response modifying constraining member having first and second ends, the second being forward of the first and spaced from the strike face, the constraining member extending vertically and in contact with the sole and the crown at its first and second ends, and extending horizontally distance that is substantially less than the sole length, when the club head is in address position.
Provided is a golf club shaft having excellent strength. This golf club shaft is made of a fiber-reinforced epoxy resin material including a cured product of an epoxy resin composition and reinforcing fibers. The epoxy resin composition includes, as epoxy resin components: at least one type of resin selected from the group consisting of bisphenol A-type epoxy resins, bisphenol F-type epoxy resins, and novolac-type epoxy resins; and a tetraglycidyl-type epoxy resin. The cured product of the epoxy resin composition has a swelling rate by methylethyl ketone of from 20 mass% to 44 mass%.
[Problem] To provide a method for increasing internal pressure of a hollow ball easily in a practical time. [Solution] This method for increasing the internal pressure of a hollow ball comprises: (1) a step for putting, in a housing part (4), a hollow ball (18) having an outer shell and a space covered with the outer shell; (2) a step for filling, into the housing part (4), gas having more excellent permeability to the outer shell than the permeabilities of oxygen gas and nitrogen gas to the outer shell; and (3) a step for causing the gas to permeate the outer shell. When the outer shell contains natural rubber, preferably, gas of which the permeation coefficient to the natural rubber at 25°C is 20×10-17 m4/(N∙s) or more is filled into the housing part in the above step (2). More preferably, carbon dioxide gas is filled into the housing part in the above step (2).
[Problem] To provide a golf club in which a shaft is detachably attached to a head, and which has excellent reliability. [Solution] This golf club (2) is provided with a head (4), a shaft (6), a sleeve (8) and a screw (10). The sleeve (8) is fixed to the end part of the shaft (6). The head (4) has a head main body (18) and an engagement member (20). The engagement member (20) is fixed to the head main body (18). On the basis of the engagement of the sleeve (8) with the engagement member (20), rotation of the sleeve (8) in the head (4) is regulated. On the basis of the connection between the sleeve (8) and the screw (10), the falling out of the sleeve (8) from the head (4) is regulated. The screw (10) is a multiple-thread screw.
(Problem) To provide a golf club head having a recessed part and allowing a high degree of design freedom. (Solution) A head (4) is provided with a head main body (m1) and a recessed part-forming member (b1). The head main body (m1) has an opening (hs1) for a recessed part, and a receiving part (x1) with at least a part thereof formed around the opening (hs1) for a recessed part. The recessed part-forming member (b1) is fixed to the opening (hs1) for a recessed part. A recessed part (R) is formed on the head outer face by the recessed part-forming member (b1). The recessed part-forming member (b1) is formed separately from the head main body (m1). The recessed part-forming member (b1) has an outward extending part (y1). The outward extending part (y1) is supported by the receiving part (x1). The head (4) is hollow.
A golf club head (10) includes a heel portion (12), a toe portion (14), a hosel (52), and a striking face (16). The striking face includes a plurality of scorelines (18) each having an average depth no less than about 0.10 mm, a plurality of micro-grooves (20) each having an average depth no greater than about 0.010 mm, and a plurality of textured surface treatment regions (22) superimposed on the micro- grooves so as to at least partially intersect the micro-grooves.
[Problem] To provide a golf club head that is highly adaptable to changes in lie, and has good sliding of the sole [Solution] A sole surface (f8) of a head (2) has a first sole region (R1). An outer edge of the region (R1) has a first edge line (Eg1), a second edge line (Eg2), a third edge line (Eg3), and a fourth edge line (Eg4). The line (Eg1) is inclined so as to be closer to a face surface as the line goes toward a tow side. The line (Eg2) is inclined so as to be closer to the face surface as the line goes toward a heel side. The line (Eg3) is inclined so as to be closer to the face surface as the line goes toward the heel side. The line (Eg4) is inclined so as to be closer to the face surface as the line goes toward the tow-side. The lines from (Eg1) to (Eg4) are linked together, thus forming a single line.
Provided is a golf club head which produces an improved hitting sound obtained without impairing the appearance of the sole section. A golf club head having a hollow section (i) formed therein has a sole section (5) which forms the bottom surface of the head. The sole section (5) includes a thin-walled section (8) and a thick-walled section (9) which has a greater thickness than the thin-walled section (8). The golf club head is characterized in that a portion of the inner surface of the thick-walled section (9), the portion facing the hollow section, has a rib (10) secured to the portion by welding.
Provided is an iron type golf club head equipped with an undercut cavity. An iron type golf club head has a face section (2) for hitting a ball. A flange section (7) which rises toward the rear of the head is provided at the peripheral edge (2e) of the face section (2). A cavity (C) which is surrounded by the flange section (7) is formed in the rear face (5) of the face section (2). The flange section (7) includes a first flange section (8). The first flange section (8) has a first recess (10) on the inner peripheral surface (8i) side thereof, the inner peripheral surface (8i) facing the cavity (C), and the first recess (10) forms an undercut cavity (C2) which is recessed toward the outside of the head and which extends along the peripheral edge (2e). A lateral cross-section of the first recess (10) has a front wall surface (11) which is located at the front of the head, a rear wall surface (12) which is located at the rear of the head, and a bottom surface (13) which smoothly connects the front wall surface (11) and the rear wall surface (12), and the lateral cross-section is tapered toward the bottom surface (13). The angle (θ1) between the front wall surface (11) and the rear wall surface (12) is greater than or equal to 10 degrees and less than 30 degrees. The bottom surface (13) is formed from a circular arc having a curvature radius (R1) greater than or equal to 1 mm and less than 2 mm.
The purpose of the present invention is to provide a novel fiber-reinforced epoxy resin material having improved strength. This fiber-reinforced epoxy resin material is a fiber-reinforced epoxy resin material containing a cured epoxy resin composition and reinforcing fibers, the epoxy resin composition containing novolak-type epoxy resin as an epoxy resin component, and the cured epoxy resin composition having a swelling ratio by methyl ethyl ketone of 20-44 mass%.
C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
C08G 59/20 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the epoxy compounds used
[Problem] To provide a gold club head with excellent striking sound and flight distance performance. [Solution] This head (2) is provided with a face (4), a crown (6) and a sole (8). Grid-form ribs are provided on the inner surface of the crown (6). Defining the region where the grid-form ribs are provided as the rib region (R1), additional ribs (rb3) are further provided in the rib region (R1). The additional ribs are positioned on the heel side of the face center. Preferably, the grid-form ribs are formed by the intersection of first ribs (rb1) extending in approximately the toe-heel direction, and second ribs (rb2) extending in approximately the face-back direction. Preferably, the additional ribs (rb3) slope towards the back towards the heel side.
A wood golf club head (1), which is provided therein with a hollow section (i) and for which a crown section (4) that forms the upper surface of the head is formed from a metal material. The crown section (4) comprises: a heel portion (4a); a toe portion (4b) with a smaller thickness than the heel portion (4a); and a thickness transition section (4c) provided between the heel portion (4a) and the toe portion (4b), the thickness of which decreases gradually from the heel portion (4a) to the toe portion (4b). In the top view of a reference state in which the head (1) is placed on a horizontal plane (HP) with a specified lie angle and loft angle, the thickness transition section (4c) extends as a smooth curve that protrudes towards the toe (T) side.
[Problem] To provide a golf club swing analysis method, swing analysis system, and swing analysis program capable of easily calculating the positions of markers on a club head and analyzing a swing when the swing is analyzed from images taken with a single camera. [Solution] This swing analysis method is provided with: a step for preparing a golf club that has a head; a step for installing multiple markers on the head; a step for acquiring multiple basic head images by filming the head in multiple orientations with a single camera; a step for calculating, as basic marker position information, the position of each marker in a head coordinate system that uses the golf club head as a reference on the basis of the multiple basic head images; a step for acquiring a single analysis head image by filming a swing of the golf cub at a specified time using the camera; and a step for calculating the position and/or the orientation of the golf club head at the specified time in the object space from the positions of the multiple markers in the single analysis head image.
[Problem] To provide a light-weight and high-strength golf club head. [Solution] A head (2) comprising a face (4), a sole (8), and a crown (6). The face (4) has a face front surface (fs) and a face rear surface (fr). A plurality of protrusions (A) are provided in the face rear surface (fr). The protrusions (A) are dot shaped in the planar view. An arbitrary first direction and a second direction perpendicular to this first direction are defined in the planar view. Ideally, the regularity of arrangement of the protrusions (A) in the second direction is greater than the regularity of arrangement of the protrusions (A) in the first direction. Ideally, the first direction is vertical and the second direction is horizontal.
[Problem] To provide a golf club head which improves various aspects of performance by virtue of the rib arrangement. [Solution] This head (2) is provided with a face (4), a crown (6) and a sole (8). A rib (rb) is formed on the inner surface of the sole (8). The rib (rb) has a sloped extending portion (ks1) which, from the heel side to the toe side, extends to approach the face. The center of gravity of the head is positioned on the heel side of the face center. The head (2) is hollow. Preferably, the sole (8) has a minimum thickness region. Preferably, the rib (rb) has a thin reinforcing section (rb2) positioned in the minimum thickness region. The rib (rb) may extend in a straight line. The rib (rb) may extend in a curve. Preferably, the sloping angle of the rib (rb) is 10°-45° relative to the toe-heel direction.
[Problem] To provide a golf club shaft for which an appropriate degree of rigidity can be obtained and impact strength can be improved. [Solution] A shaft (6) has entire length layers (s3, s4, s7, s8, s9) disposed over the entire length direction of the shaft, and end portion layers (s1, s2, s10, s11, s12) disposed at the end part of the shaft. The entire length layers include bias layers (s3, s4) and straight layers (s8, s9). The end portion layers include an inner-side glass fiber strengthening layer (s1), and an outer-side low-elasticity carbon fiber strengthening layer (s10) or an outer side glass fiber strengthening layer (s10) either of which is disposed more to the outer side than the inner-side glass fiber strengthening layer (s1). The low-elasticity carbon fiber has a tensile elasticity of no more than 22 ton/mm2. The shaft (6) has a shaft weight of no more than 55g for 46 inches.
This golf club shaft fitting method involves selecting a shaft having torque that matches a golfer on the basis of the swing of the golfer. The golf club shaft fitting method includes: a step in which measurement values are obtained from a sensor, which is capable of measuring angular velocities around three axes, by hitting a golf ball with a golf club having a clip to which the sensor is attached; a step in which prescribed index values are obtained for the angular velocities, which are quantified from the measurement values; and a step in which, on the basis of the relationship between the torque of a shaft and the index values, which are created according to pre-test hitting, a shaft that matches the golfer is selected from among a plurality of shafts for which torque has been measured in advance.
A connector device for kill- and choke lines between a riser and a floating drilling platform includes a slip joint on top of the riser including an outer barrel, a kill- and choke manifold arranged on the platform and provided with flexible kill- and choke hoses to the slip joint's outer barrel, and wherein the slip joint's outer barrel is provided with a horizontally directed kill- and choke-manifold.
There is provided volume holographic data recording media having a recording layer which is capable of recording interference fringes generated by interference of light having excellent coherence as fringes having different refractive indexes and undergoes holographic data recording by an amount of spatial shift distance of not more than 3 μm which is smaller than that of conventional media.
G03H 1/02 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto Details
At least two golf clubs of a set, according to one or more aspects of the present invention, may include a strike face and a perimeter weighting element disposed behind the strike face. The perimeter weighting element may include an inner peripheral wall having a sole surface, a top surface, a heel surface, and a toe surface. A cavity, having a base surface, may be delimited by the inner peripheral wall and may include an insert disposed therein. The insert may comprise a primary element passively flexurally associated with one or more secondary elements and may be substantially identical for each head within the set. The primary element may be associated with the base surface and the at least one secondary element may be associated with at least one of the sole surface, the top surface, the toe surface, and the heel surface.
