The purpose of the present invention is to provide a dry friction base material, a dry friction material, a torque limiter device, and a fixation structure for the dry friction base material that can ensure a stable friction coefficient. This dry friction base material 1 is fixed onto a surface of a plate 6 for a torque limiter device, and has a portion 2 shaped for fixation. The shape of said portion is preferably a recessed shape, a protruding shape, or a notch shape. Further, the shape of the dry friction base material in a plan view is preferably circular, elliptical, polygonal, or arcuate.
The purpose of the present invention is to provide a dry friction material which can be produced more easily than conventional ones, a production method for the dry friction material, a composition for a dry friction material, and a method for producing the composition. A dry friction material 1 comprises a matrix material 11 and a dispersed material 12, wherein the matrix material 11 includes a vulcanized rubber and the dispersed material 12 comprises heat-resistant reinforcing fibers 121 and a friction regulation material, the heat-resistant reinforcing fibers 121 being oriented in a certain direction. This composition for a dry friction material is obtained by extruding a kneaded mixture comprising an unvulcanized rubber, heat-resistant reinforcing fibers, and a friction regulation material. This production method for the composition for a dry friction material includes an extrusion step in which a kneaded mixture comprising an unvulcanized rubber, heat-resistant reinforcing fibers, and a friction regulation material is extruded.
The present invention provides a dry friction material that allows the friction coefficient (μ) of a front surface and a back surface to be easily made different, a torque limiter device using the dry friction material, and a method for manufacturing the dry friction material. A dry friction material 1 is attached to a front surface of a plate 6 of a torque limiter device 5. The dry friction material 1 includes a reinforcement fiber 12 and a vulcanized rubber 11, and has a non-slip part 111 including a carbide on a contact surface 1A that is in contact with the front surface of the plate 6. The non-slip part 111 is formed by partially heating the contact surface 1A of the dry friction material 1 and carbonizing the vulcanized rubber 11 on a surface layer of the contact surface 1A.
C09J 163/00 - Adhésifs à base de résines époxyAdhésifs à base de dérivés des résines époxy
C09J 153/00 - Adhésifs à base de copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneAdhésifs à base de dérivés de tels polymères
C09J 153/02 - Monomères vinyliques aromatiques et diènes conjugués
5.
BLOCK-COPOLYMER-CONTAINING EPOXY- BASED ADHESIVE COMPOSITION, PRODUCTION METHOD THEREFOR, AND CURED OBJECT OF BLOCK-COPOLYMER-CONTAINING EPOXY-BASED ADHESIVE
NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM (Japon)
Inventeur(s)
Sakaguchi Kazumasa
Kano Tatsuya
Hattori Kazuo
Fujii Yoshiro
Noro Atsushi
Kajita Takato
Sakai Takenobu
Yamada Saya
Nishimoto Mio
Abrégé
The present invention makes it possible to improve high toughness. This block-copolymer-containing epoxy-based adhesive composition comprises an epoxy resin, a hardener, and a block copolymer comprising a hydrocarbon-based rubbery polymer incompatible with the epoxy resin and having a glass transition temperature of 25°C or lower and a polymer compatible with the epoxy resin.
C09J 163/00 - Adhésifs à base de résines époxyAdhésifs à base de dérivés des résines époxy
C08G 59/00 - Polycondensats contenant plusieurs groupes époxyde par moléculeMacromolécules obtenues par réaction de polycondensats polyépoxydés avec des composés monofonctionnels à bas poids moléculaireMacromolécules obtenues par polymérisation de composés contenant plusieurs groupes époxyde par molécule en utilisant des agents de durcissement ou des catalyseurs qui réagissent avec les groupes époxyde
C09J 153/02 - Monomères vinyliques aromatiques et diènes conjugués
A water-based paint composition has performance to decompose ozone. The water-based paint composition includes a manganese oxide-based catalyst, an activated carbon, a polyacrylate-based dispersant, a water-soluble resin, a pH adjuster, and a water-based solvent.
[Problem] To have high sound absorption characteristics in a wide frequency range from a medium frequency range to a high frequency range even with a small thickness. [Solution] A sound absorbing material is obtained by imparting a compressive force creating a compressibility in the range of 50-95% to a foam having closed cells and a compressive stress at the time of 25% compression in the range of 2-30 kPa, thereby communicating the cells and forming a cellular structure of the cells communicated by compression and the closed cells, the cellular structure having a specific gravity within the range of 0.08-0.4 and a compressive stress at the time of 25% compression in the range of 2-4.8 kPa.
A water-based paint composition has the ability to decompose ozone and includes a manganese oxide-based catalyst, an activated carbon, a polyacrylate-based dispersant, a water-soluble resin, a pH adjuster, and a water-based solvent.
B05B 1/04 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage agencés pour produire un jet, un pulvérisat ou tout autre écoulement de forme ou de nature particulière, p. ex. sous forme de gouttes individuelles de forme plane, p. ex. en forme d'éventail, en forme de lame
A wet friction member includes a core plate formed in a flat ring shape; and a friction part arranged on a main surface of the core plate. The friction part is formed in such a manner that four kinds of segment pieces, which are a first piece, a second piece, a third piece, and a fourth piece, are repeatedly arranged in this arrangement order in a ring shape via oil grooves.
A present wet friction body includes a core plate, a plurality of friction parts disposed on a main surface thereof in a ring shape at intervals, a plurality of oil grooves defined by the corresponding friction parts. The friction parts include first to third friction parts in which forms of the pair of sidewalls are different each other. The first friction part includes a left sidewall inclining to the right and a right sidewall inclining to the left, with respect to an imaginary line segment, and an outer peripheral wall having a length less than a length of an inner peripheral wall. The second friction part includes a pair of sidewalls, both inclining to the right with respect to an imaginary line segment. The third friction part includes a pair of sidewalls, both inclining to the left with respect to an imaginary line segment.
To provide a wet friction material that succeeds in reducing dragging torque through different means than in conventional practice, this wet friction material 1 has a plurality of friction parts 3 disposed in a ring shape at intervals from each other in a core plate 2 and a main surface 2a of the core plate 2, and a plurality of oil grooves 4 formed by being divided off by the friction parts 3. The friction parts are provided with left-side walls, right-side walls, outer peripheral walls, and inner peripheral walls in plan view, and include three types of friction parts, which are first through third friction parts having different forms of side wall pairs. In each first friction part 3A, in relation to an imaginary line segment LA, a left-side wall 3AWL is slanted to the right, a right-side wall 3AWR is slanted to the left, and the length of an outer peripheral wall 3AWO is less than the length of an inner peripheral wall 3AWI. In each second friction part 3B, in relation to an imaginary line segment LB, a pair of side walls 3BWL and 3BWR are both slanted to the right. In each third friction part 3C, in relation to an imaginary line segment LC, a pair of side walls 3CWL and 3CWR are both slanted to the left.
A valve component comprising: a body section comprising synthetic resin; and a spool housing body (90) that is separate from the body section and cast in the body section. The spool housing body (90) has: a main body section (91) having a hole (64) slidably housing a spool; a port (93a) formed in a wall surface of the hole (64) in the main body section (91) and changing the connection state between the inside and the outside of the main body section (91), by the position of the spool; a connection hole extending from the port (93a) to the outside in the radial direction; a first protruding section that has a connection hole formed therein and is formed so as to protrude from the outside surface of the main body section (91) to the outside in the radial direction; and a first opening having a connection hole opening to a tip section of the first protruding section.
A wet friction disk that can achieve a further reduction in the drag torque, which includes a ring-shaped core plate having a wave shape in a circumferential direction thereof, a friction member disposed on a principal surface of the core plate so as to being substantially shaped into a ring with a plurality of oil grooves, and the oil grooves each have a shape with a groove width that is narrowed from an inner circumference side toward an outer circumference side of the core plate.
In a wet friction material, a plurality of segment pieces is disposed at both sides of inter-segment grooves. The segment pieces are composed of first segment pieces and second segment pieces. The first segment piece has at least two inner peripheral recesses formed on an inner periphery thereof and at least two outer peripheral recesses formed on an outer periphery thereof. The outer periphery of the first segment piece has a short dimension. The second segment piece has at least two inner peripheral recesses formed on an inner periphery thereof and at least two outer peripheral recesses formed on an outer periphery thereof. The outer periphery of the second segment piece has a long dimension.
A coating nozzle for high-viscosity paint includes a nozzle slit. The nozzle slit exhibits a specific reduced slit angle, and includes a nozzle-slit outlet, and a nozzle-slit inlet. The nozzle-slit outlet is formed as a distinct substantially-arced shape elongating lopsidedly from the nozzle-slit inlet to the nozzle-slit outlet. The coating nozzle including the nozzle slit can optimize a shear velocity of high-viscosity paint for a discharge rate of the high-viscosity paint in a setting of the actual employment.
B05B 1/04 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage agencés pour produire un jet, un pulvérisat ou tout autre écoulement de forme ou de nature particulière, p. ex. sous forme de gouttes individuelles de forme plane, p. ex. en forme d'éventail, en forme de lame
B05B 13/04 - Moyens pour supporter l'ouvrageDisposition ou assemblage des têtes de pulvérisationAdaptation ou disposition des moyens pour entraîner des pièces les têtes de pulvérisation étant déplacées au cours de l'opération
B05C 5/02 - Appareillages dans lesquels un liquide ou autre matériau fluide est projeté, versé ou répandu sur la surface de l'ouvrage à partir d'un dispositif de sortie en contact, ou presque en contact, avec l'ouvrage
A cowl louver is provided between the hood panel of a vehicle body and window glass and comprises: a body section extending from the hood panel side toward the window glass side; and an attachment section provided between the body section and the window glass. The attachment section is provided with: a base section fitted to the body section; a roof section for covering the gap between the body section and the window glass; a support section connecting to both the base section and the roof section and supporting the roof section; and a glass end surface contact section extended from the roof section and in elastic contact with a portion of an end surface of the window glass, the portion facing the attachment section. The support section is configured so that, in response to a change in the size of the gap formed between the body section and the window glass section, the support section pivots about the portion thereof which connects to the base section. The roof section is configured so that the position in height of the roof section and the position in height of the upper surface of the window glass agree with each other.
To absorb a noise produced by an external force that generates an audio frequency even if it is applied thereto, and to make it hard to become a noise source to a surrounding area.
It includes a surface layer 20 having microscopic pores 21 formed on a surface 20A, communicating passages 24 communicating with the microscopic pores 21 and a porous layer 10 having sound pores 14 that are formed at an inner part deeper than the surface layer 20 having the microscopic pores 21 formed, communicate with the communicating passage 24 and that have a volume larger than volumes of the microscopic pore 21 formed on the surface 20A and the communicating passage 24. A sound absorption characteristic and/or a sound insulation characteristic is provided by the microscopic pores 21 of the surface 20A, the communicating passages 24 of the porous layer 10, and the sound pores 14 of the porous layer 10. Accordingly, sound absorption control including sound insulation in a predetermined audio frequency band can be achieved and a high sound absorption characteristic can be provided.
E04B 1/82 - Isolation thermique ou acoustique, absorption ou réflexion de la chaleur ou du sonAutres méthodes de construction procurant des conditions thermiques ou acoustiques favorables, p. ex. par accumulation de chaleur à l'intérieur des murs spécifiquement relatives au son uniquement
A segment-type friction material comprises segment pieces each having a supply passage formed thereon to supply lubricating oil to a surface of each of the segment pieces. The segment-type friction material further comprises oil grooves each having an outer peripheral opening portion extended in a curved shape or a linear shape. Thereby, lubricating oil is sufficiently supplied to the surface of each of the segment pieces from an outer peripheral side thereof or an inner peripheral side thereof and a clearance between the segment-type friction material and its associated separator plate is assured. Moreover, a space for the lubricating oil to flow through an outer periphery is sufficiently assured and a drag torque is reduced.
The present invention provides a dry friction material and a method for manufacturing the same, wherein the dry friction material is maintained as a whole with a reduced percentage of glass fiber content so that a portion to be drilled has a high strength and a high rigidity, thereby enabling drilling for swaging. The portion of stamping dies (20A, 20B) that is associated with the portion to be drilled is provided with a rib (21) protruded toward the workpiece being shaped, thereby stamping in a press forming step the portion to be drilled (a glass rich portion (30)) at a higher pressure as compared with a portion not to be drilled. This causes only compound rubber (4) to be extruded outward, so that only the glass rich portion (30) has an increased percentage of glass fiber (3) content, thus being provided with enough strength to withstand the drilling. It is thus possible to manufacture the dry friction material (1) that is provided with a drilled hole (2) without causing any defectives due to the drilling.
The present invention is capable of, even when external force that generates sound frequency is applied, absorbing noise generated thereby and preventing the noise from becoming a noise source for the surroundings thereof. A sound absorption characteristic structure is provided with a surface layer (20) which has pores (21) formed in the surface (20A) thereof, and a porous layer (10) which has communication paths (24) communicating with the pores (21), and acoustic holes (14) each formed in the inner part deeper than the surface layer (20) in which the pores (21) are formed, communicating with the communication path (24), and having a larger volume than the volumes of the pore (21) formed in the surface (20A) and the communication path (24), and is given a sound absorption characteristic and/or a sound blocking characteristic by the pores (21) in the surface (20A), the communication paths (24) and the acoustic holes (14) in the porous layer (10). Consequently, sound absorption control including sound blocking in a predetermined sound frequency band becomes possible, and a high sound absorption characteristic can be given.
G10K 11/172 - Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général utilisant des effets de résonance
A coating nozzle (10) for a high-viscosity paint is equipped with an introduction passage (17), an inner space (16), and a nozzle slit (15), which communicate with one another, and sprays a coating body with the high- viscosity paint from the nozzle slit (15) in a radial direction. The nozzle slit (15) is constructed in a sectional shape having predetermined angle in a plan view. When the nozzle slit (15) is regarded as having the sectional shape, an arc of the sectional shaped nozzle slit (15) serves as a nozzle slit outlet (15E). The nozzle slit outlet (15E) has a nozzle slit outlet width (W) equal to or large than 35 mm and a flattening (F) equal to or smaller than 0.01 where a slit height (D) represents a clearance of the nozzle slit outlet (15E), the nozzle slit outlet width (W) represents a chord of the arc, and the flattening (F) represents a ratio of the slit height (D) to the nozzle slit outlet width (W).
B05B 1/04 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage agencés pour produire un jet, un pulvérisat ou tout autre écoulement de forme ou de nature particulière, p. ex. sous forme de gouttes individuelles de forme plane, p. ex. en forme d'éventail, en forme de lame
In order to obtain excellent drag torque reduction effects in a friction material across a wide range of relative rotation speed by further improving the discharge of a lubricant oil when unengaged while maintaining a wide lining area to an extent that does not affect torque transmission capacity, heat resistance, and peeling resistance, a segmented friction material (1A) acting as a wet friction material is provided with, in three locations on the circumference exclusively on the surface of a portion of segment pieces (3A) from among 30 segment pieces (3, 3A), sets of drag torque reducing grooves (5A) along a direction that is roughly orthogonal to a straight line connecting the center (O) of the circumference and the center point (5Aa) of the drag torque reducing grooves (5A), which span over sets of five segment pieces (3A). As a result, major drag torque reduction effects are obtained across a wide range of relative rotation speed (500 rpm to 5000 rpm) without narrowing the lining area, by improving ATF discharge and forming an oil film on the surface of the segment pieces (3A).
A segment type friction part is configured in such a way that there are formed supply paths which supply lubricating oil to the surfaces of segment pieces, and that furthermore, oil groove openings on the outer circumference sides of the segment pieces are formed in such a way as to expand curvilinearly and linearly. Due to the above, lubricating oil is sufficiently supplied to the surfaces of the segment pieces from the outer circumference sides thereof or from the inner circumference sides thereof, and the gap between the segment type friction part and a separator plate is secured. Furthermore, spaces where lubricating oil flows to the outer circumferences of the segment pieces are sufficiently secured, resulting in reduced drag torque.
Emulsion paint type damping coatings show an excellent film forming property even if it leaves at low temperature from 5 to 20° C. It does not generate a defective coated film like swellings after baking drying and brings out an excellent damping performance within a range of 20 to 60° C. That is, it contains one or more than two kinds of organic chemicals within a range of 0.5% to 5% by weight in total and the MFT, the minimum film forming temperature of the entire resin emulsion is within a range of 5 to 15° C. and the boiling point for a film forming assistant is within a range of 150 to 240° C., thus, it enables to obtain an excellent film forming property at 5° C. and even in baking drying and does not generate a defective coated film like swellings as well. As a result, emulsion paint type damping coatings bring out an excellent damping performance within a range of 20 to 60° C.
In a wet friction material, inorganic filler of small particle size is added to fill clearances or space between fibers with the inorganic filler. The inorganic filler is attached to the fibers with each other to reinforce strength of the wet friction material when an impregnated resin is hardened. Absolute specific gravity of the inorganic filler is set at a fixed value so as to make its compounding quantity small, thereby assuring a pore diameter of a friction material substrate without filling pores of the friction material substrate with the inorganic filler.
Emulsion paint type damping coatings show an excellent film forming property even if it leaves at low temperature from 5 to 20°C. It does not generate a defective coated film like swellings after baking drying and brings out an excellent damping performance within a range of 20 to 60°C. That is, it contains one or more than two kinds of organic chemicals within a range of 0.5 % to 5 % by weight in total and the MFT, the minimum film forming temperature of the entire resin emulsion is within a range of 5 to 15°C and the boiling point for a film forming assistant is within a range of 150 to 240°C, thus, it enables to obtain an excellent film forming property at 5°C and even in baking drying and does not generate a defective coated film like swellings as well. As a result, emulsion paint type damping coatings bring out an excellent damping performance within a range of 20 to 60°C.
F16F 15/02 - Suppression des vibrations dans les systèmes non rotatifs, p. ex. dans des systèmes alternatifsSuppression des vibrations dans les systèmes rotatifs par l'utilisation d'organes ne se déplaçant pas avec le système rotatif
29.
Wet-type friction material and its manufacturing method
In a wet-type friction material, a ring-shaped friction material substrate is compressed and fixed on a surface of a core metal by heat-pressing by a manufacturing metal mold. At the same time, a taper of an angle α corresponding to a taper at an outer peripheral side of an upper mold is provided on an outer peripheral side of the ring-shaped friction material substrate. Thus, the taper is formed such that a thickness in a radial direction of the ring-shaped friction material substrate becomes smaller from a middle point toward an outer peripheral edge.
B32B 3/00 - Produits stratifiés comprenant une couche ayant des discontinuités ou des rugosités externes ou internes, ou une couche de forme non planeProduits stratifiés comprenant une couche ayant des particularités au niveau de sa forme
B32B 7/00 - Produits stratifiés caractérisés par la relation entre les couchesProduits stratifiés caractérisés par l’orientation relative des éléments caractéristiques entre les couches, ou par les valeurs relatives d’un paramètre mesurable entre les couches, c.-à-d. produits comprenant des couches ayant des propriétés physiques, chimiques ou physicochimiques différentes Produits stratifiés caractérisés par la jonction entre les couches
A wide slit nozzle having a slit as a discharge opening. The thickness of a lateral end part is set smaller than the thickness at a lateral center part. The thickness of the lateral center part is fixed. The thickness of the lateral end part changes linearly from opposite lateral ends of the lateral center part to the opposite lateral ends of the slit. Coating material is discharged from the slit while applied with pressure, so that the coating material is coated while expanded wider than the width of the slit. The coating material is discharged at 7 liter per minute, and a coating width of a first example is 100 mm, for example. A thickness increase of the overlapped part is +25% even when a width or an overlapped margin z of the overlapped part is 10 mm or 20 mm.
B05B 13/02 - Moyens pour supporter l'ouvrageDisposition ou assemblage des têtes de pulvérisationAdaptation ou disposition des moyens pour entraîner des pièces
B05C 5/00 - Appareillages dans lesquels un liquide ou autre matériau fluide est projeté, versé ou répandu sur la surface de l'ouvrage
B05B 1/04 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage agencés pour produire un jet, un pulvérisat ou tout autre écoulement de forme ou de nature particulière, p. ex. sous forme de gouttes individuelles de forme plane, p. ex. en forme d'éventail, en forme de lame
B05B 1/00 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage
A62C 31/02 - Buses spécialement conçues pour la lutte contre l'incendie
B05C 5/02 - Appareillages dans lesquels un liquide ou autre matériau fluide est projeté, versé ou répandu sur la surface de l'ouvrage à partir d'un dispositif de sortie en contact, ou presque en contact, avec l'ouvrage
B05B 1/20 - Tuyaux ou goulottes perforés, p. ex. rampes de pulvérisationÉléments de sortie pour ces dispositifs
B05C 11/00 - Parties constitutives, détails ou accessoires non prévus dans les groupes
B05D 1/36 - Applications successives de liquides ou d'autres matériaux fluides, p. ex. sans traitement intermédiaire
B05D 1/30 - Procédés pour appliquer des liquides ou d'autres matériaux fluides aux surfaces par gravité uniquement
Lubricating oil supply holes are formed in a first member fitted to first annular plates by splines, and lubrication oil grooves are formed in the first annular plates. At each spline to which the lubricating oil groove in each first annular plate corresponds, the lubricating oil groove does not overlap with the spline on at least either the front surface side or the rear surface side of the first annular plate. Therefore, lubricating oil flowing out of the lubricating oil supply holes does not flow toward the outer periphery of the first annular plates in a concentrated manner but flows in a distributed manner from the inner periphery to the outer periphery of the first annular plates. As a result, flows of the lubricating oil suppress force that acts in the direction in which the second annular plates are caused to be in contact with friction materials of the first annular plates, and thereby drag torque is reduced.
F16D 25/0638 - Embrayages actionnés par fluide dans lesquels le fluide actionne un piston incorporé dans l'embrayage l'embrayage comportant des surfaces de friction avec organes d'embrayage mobiles exclusivement selon l'axe avec des surfaces de friction plates, p. ex. des disques avec plus de deux disques, p. ex. à lamelles multiples
F16D 25/12 - Éléments constitutifs non particuliers à l'un des types mentionnés ci-dessus
F16D 65/12 - DisquesTambours pour freins à disques
F16H 63/30 - Caractéristiques de structure des mécanismes finals de sortie
brevets
