A working attachment for a power tool is provided. The working attachment is able to be driven by the power tool to oscillate around a central axis. The working attachment includes a working portion for realizing a function of the working attachment and a connecting portion for connecting the working attachment with the power tool. The connecting portion includes at least two driven points for receiving a driving force of the power tool. The at least two driven points are disposed in a plane which is substantially perpendicular to the central axis and located between an upper end and a lower end of the connecting portion in a direction of the central axis.
B23Q 3/00 - Dispositifs permettant de maintenir, supporter ou positionner les pièces ou les outils, ces dispositifs pouvant normalement être démontés de la machine
B25F 3/00 - Associations d'outils pour différents travaux avec un seul moyen d'entraînement mécanique portatifRaccords appropriés
A vegetation cutting tool includes a cutting head, an input shaft, an output shaft, a transmission assembly and a transmission housing accommodating the transmission assembly. The transmission housing includes a skirt portion having a small end located away from the cutting head and a big end located adjacent to the cutting head, a shank extending along the first axis from the skirt portion, and a stop portion connecting the skirt portion and the shank. The stop portion forms a stop face extending from the skirt portion to the shank for preventing grass clippings winding around the transmission housing.
A01D 34/416 - FaucheusesAppareils de fauchage des moissonneuses caractérisés par des particularités relatives au type d'appareil de coupe comportant des couteaux rotatifs sous forme de fils flexibles
A01D 34/63 - FaucheusesAppareils de fauchage des moissonneuses caractérisés par des particularités relatives au type d'appareil de coupe comportant des couteaux rotatifs comportant des couteaux tournant autour d'un axe vertical
A01D 34/68 - FaucheusesAppareils de fauchage des moissonneuses caractérisés par des particularités relatives au type d'appareil de coupe comportant des couteaux rotatifs comportant des couteaux tournant autour d'un axe vertical dirigés à la main par un opérateur à pied à couteaux ou à roues entraînés par un moteur
A snowthrower includes a motor, an auger driven by the motor to rotate, a handle device for a user to operate, an auger housing for containing the auger and a frame for connecting the handle device and the auger housing. The auger housing is made of at least two different materials.
E01H 5/09 - Enlèvement de la neige ou de la glace des routes ou surfaces analoguesAménagement de la pente ou de la rugosité de la neige ou de la glace par traction animale ou mécaniqueEnlèvement de la neige ou de la glace des routes ou surfaces analoguesAménagement de la pente ou de la rugosité de la neige ou de la glace par traction à bras et entraînement des éléments de détachage ou de transport, p. ex. de transport au moyen d'air comprimé le détachage étant essentiellement effectué par éléments entraînés les éléments étant rotatifs ou se déplaçant sur une trajectoire circulaire fermée, p. ex. fraises rotatives, roues excavatrices
A power tool includes an electric motor, a functional accessory capable of being driven by the electric motor, a detection device for detecting a rotational speed of the electric motor, and a controller for controlling the electric motor with a control signal. The control is operable to estimate a load parameter according to a duty cycle of the control signal and the rotational speed of the electric motor such that the electric motor is caused to be operated by the controller with a lower rotational speed under a lower load and a higher rotational speed under a higher load.
A hedge trimmer includes a first housing with a first handle, a second housing with a second handle, a transmission mechanism combined to the first housing, a trimming blade for being driven by the transmission mechanism to carry out a shearing motion, an electric motor combined to the first housing and for driving the transmission mechanism, and a battery pack combined to the second housing and for supplying power to the electric motor. The first and second housings respectively include first and second rotation connection parts for making them be connected and rotatable around a rotation axis. The second housing has first and second rotation positions when being rotated with respect to the first housing. A plane perpendicular to the rotation axis is obliquely intersected with a plane perpendicular to a longitudinal axis of the trimming blade.
A power tool and a control circuit thereof by which electric energy can be recovered into a battery pack while an electric motor is braked. The control circuit includes a battery, the electric motor, an operation switch, a first control switch, a second control switch, a controller and an inductive element. The control circuit has a discharging state, a braking state and a charging state. In the charging state, the operation switch is in a second switched-on state, the first control switch is switched on, the second control switch is switched off, the battery, the inductive element, the operation switch, the electric motor and the first control switch form a charging circuit, and the electric motor charges the battery. The controller is electrically connected with the operation switch, the first control switch and the second control switch, respectively.
A power tool capable of being balance powered by multiple battery packs is provided. A power tool comprising: a motor; a first battery pack; a second battery pack; a first battery receptacle for receipt of the first battery pack; a second battery receptacle for receipt of the second battery pack; a first switch device for connecting to the first battery pack and the motor; a second switch device for connecting to the second battery pack and the motor; and a controller operable to send a signal to cause the switch device to open so as to disconnect the battery pack and the motor when the voltage of the switch device is less than a control voltage.
Embodiments of the disclosure are directed to a back-mounted power tool system. The power tool system includes a battery package that can be used on other power tool systems, a backpack apparatus, a power tool, and a connecting member. The backpack apparatus includes a backpack harness to mount the backpack apparatus onto a user's body and a first connector to removably couple the battery package to the backpack apparatus. The power tool includes a motor driven by a power supply from the battery package. The connecting member transfers a weight of the power tool and/or a force received from the power tool to the backpack apparatus by rotatably coupling the power tool to the backpack apparatus. The connecting member further enables the power tool to rotate about a first rotation axis or a second rotation axis, the first rotation axis being perpendicular to the second rotation axis.
A45F 3/04 - Sacs ou paquetages portés sur le corps au moyen de deux courroies passant sur les épaules
B25F 5/00 - Détails ou parties constitutives d'outils portatifs à moteur sans relation spécifique avec les opérations exécutées et non prévus ailleurs
H01M 50/244 - Boîtiers secondairesBâtisDispositifs de suspensionDispositifs de manutentionSupports caractérisés par leur procédé de montage
H01M 50/247 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports spécialement adaptés aux dispositifs portatifs, p. ex. aux téléphones portables, aux ordinateurs, aux outils à main ou aux stimulateurs cardiaques
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
A hand pushed lawn mower includes a power unit including a motor and a circuit board, a support device for supporting the power unit, and a fan that rotates about a rotating axis. The power unit is detachably connected with the support device and includes a power unit housing. The power unit housing includes a containing chamber for containing the motor and the circuit board, an air inlet allowing an air flow to flow into the containing chamber, and an air outlet allowing the air flow to flow out of the containing chamber. When the fan is rotated, the air flow which flows into the containing chamber from the air inlet at least passes in contact with the circuit board and then flows out of the containing chamber through the air outlet.
A01D 34/47 - FaucheusesAppareils de fauchage des moissonneuses caractérisés par des particularités relatives au type d'appareil de coupe comportant des couteaux rotatifs comportant des couteaux tournant autour d'un axe horizontal, p. ex. des cylindres de coupe dirigés à la main par un opérateur à pied à couteaux ou à roues entraînés par un moteur
A blower includes a fan for generating an air flow, a motor for driving the fan to rotate about a central axis, a battery pack for supplying power to the motor, an air duct portion including an air duct, the air duct extending long the central axis, a coupling portion for coupling with the battery pack, and a connection portion for connecting the air duct portion with the coupling portion. The fan is received in the air duct. The air duct includes an air duct inlet and an air duct outlet which are respectively located at the two ends of the air duct. The air duct inlet is located between the air duct outlet and the coupling portion. The connection portion is provided with an air intake space located between the air duct inlet and the coupling portion. The air intake space is opened in a radial direction of the central axis.
A01G 9/28 - Parterres surélevésPlatebandesÉléments de bordure pour planches, pelouses ou similaires, p. ex. des tuiles
E01H 1/08 - Emploi de l'air comprimé pour détacher ou enlever les matières indésirablesSéchage par la chaleur uniquement, ou par des courants de gazNettoyage par projection de particules abrasives
F04D 25/06 - Ensembles comprenant des pompes et leurs moyens d'entraînement la pompe étant entraînée par l'électricité
F04D 25/08 - Ensembles comprenant des pompes et leurs moyens d'entraînement le fluide énergétique étant l'air, p. ex. pour la ventilation
F04D 29/52 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes axiales
A gardening tool includes a motor, a working assembly for performing a function of the gardening tool, and a transmission system for causing the motor to drive the working assembly. The transmission system includes a first clutch member, a movable member that is moveable from a first position to a second position, a bias member for biasing the movable member to the first position, and a second clutch member configured to rotate with the first clutch member when the movable member is biased to the first position and to rotate relative to the first clutch member when the movable member is located at the second position.
A cutting head for use with a cutting tool, such as a grass trimmer. The cutting head has a housing, a line spool and a supporting cap. One end of the housing is coupled to an end of a motor output shaft and another end has an opening. A line spool is disposed in the housing and rotates along with the housing. At least one end of a line wound around the line spool extends out of the housing. The supporting cap is rotatably disposed at the end of the line spool adjacent to the opening and is exposed to an exterior of the housing through the opening.
A battery pack cooling and charging device includes a charging module for a battery pack, a cooling fan, a power source module and a cooling fan control module. The cooling fan control module is capable of controlling the cooling fan for cooling and is connected with the cooling fan. During the charging operation, a rotational speed of the cooling fan for cooling the battery pack and a charging module is changed by detecting parameters such as fan operation time, a battery pack internal resistance, a charging module temperature, and a battery pack voltage. The rotational speed of the cooling fan is reasonably adjusted, thus noise of the cooling fan is reduced and energy consumption is reduced according to different phases of the charging process by regarding one parameter or combinations of parameters as conditions for changing the rotational speed of the fan.
A handheld blower includes a housing having an air inlet and a duct assembly mounted in front of the air inlet, the duct assembly including a duct connected with the housing, a motor and a fan mounted in the duct, a battery, and a blowpipe connected to the housing by the duct assembly, the blowpipe defining a central axis in the length direction, and a handle arranged above the housing and the battery. The handle includes a gripping portion arranged on opposite sides of a plane in which the gravity center of the blower is located, and the plane is parallel to a central axis of the blowpipe and substantially perpendicular to a working ground. The gravity center of the handheld blower is adjacent to the gripping portion which enhances the handling comfort and reduces operator fatigue during long times of operation.
A47L 5/14 - Caractéristiques de structures des aspirateurs à pompes à air ou compresseurs à moteur, p. ex. fonctionnant par le vide créé par le moteur d'un véhicule nettoyant par ventilation, combiné également avec un nettoyage par aspiration
B08B 5/02 - Nettoyage par la force de jets, p. ex. le soufflage de cavités
15.
LAWNMOWER WITH OPERATION PROTECTION AND SAFETY SWITCH MECHANISM THEREOF
A lawnmower with operation protection and a safety switch mechanism. The safety switch mechanism include: an inner pipe and a pipe sleeve slidably connected with and enclosing the inner pipe, a safety switch with a contact tab mounted inside the pipe sleeve, a trigger configured to trigger the safety switch by contacting the contact tab when the inner pipe slides, and an elastomer configured to drive the trigger to keep from contacting with the contact tab. All of the safety switch, the trigger and the elastomer are arranged on the same side of the inner pipe. The safety switch mechanism functions to disable the motor upon accidental proximity of the operator to the cutter body to thereby lower the possibility of an accident.
A lawncare apparatus includes a main body, multiple wheels supporting the main body, a cutting blade disposed in the main body, a motor driving the cutting blade, and an operating arm connected to the first end of the main body. The distance in the horizontal direction between the axial central line of the cylindrical gripping portion of the operating arm and the axes of the elongated handle of the main body along the length direction is less than 5 cm. Because of the structure mate relationship between the operating arm and the cylindrical gripping portion, the operator feels more comfortable during the transporting process, the volume of lawncare apparatus during transporting is reduced and the convenience of transporting is improved.
A01D 34/63 - FaucheusesAppareils de fauchage des moissonneuses caractérisés par des particularités relatives au type d'appareil de coupe comportant des couteaux rotatifs comportant des couteaux tournant autour d'un axe vertical
17.
ELECTRICAL TOOL WITH BATTERY PACK EJECTION ASSIST MECHANISM
The present invention provides an electrical tool with batter pack ejection assist mechanism. The electrical tool includes a housing receiving a motor and a transmission mechanism, a tool accessory driven by the motor for the operation, a battery pack slidably mounted to the housing for providing power and a locking mechanism for locking the battery pack after being mounted. The electrical tool further includes an ejecting assembly for assisting in the ejection of the battery pack when the locking mechanism unlocks the battery pack, the ejecting assembly includes a contacting member for contacting and ejecting the battery pack and a driving member for driving the contacting member for ejecting the battery pack. The contacting member is movably connected to the housing, and the driving member is arranged in the housing and contacts the contacting member.
A composite phase change material and the method for forming the material is disclosed herein, thereof, especially a composite phase change material for lithium battery cooling, comprising polyethylene glycol, silica vehicle and composite flame retardant comprising graphite and polymer, wherein the weight ratio of the graphite and polymer is approximately 1:2. The composite phase change material according to the invention has a good stability and a thermal conductivity, a small corrosivity, a high phase transition enthalpy of 150-350J/g, and a morphological stability during phase change. Moreover, addition of high thermal conductivity material and composite flame retardant ensures good thermal conductivity and excellent flame retardant effect of the phase change material.
C08L 85/02 - Compositions contenant des composés macromoléculaires obtenus par des réactions créant dans la chaîne principale de la macromolécule une liaison contenant des atomes autres que le silicium, le soufre, l'azote, l'oxygène et le carboneCompositions contenant des dérivés de tels polymères contenant du phosphore
C09K 5/06 - Substances qui subissent un changement d'état physique lors de leur utilisation le changement d'état se faisant par passage de l'état liquide à l'état solide, ou vice versa
brevets
