Patent application number | Description | Published |
20110175433 | TUBULAR PORTION OF BICYCLE HUB - A bicycle hub includes a tubular portion which is fixed to the hub and includes at least one first transmission portion and at least one second transmission portion. The first transmission portion extends axially and radially outward from the tubular portion. The at least one second transmission portion includes at least one positioning protrusion on the tubular portion and at least one engaging member which has a first end mounted to the at least one positioning protrusion so as to form the at least one second transmission portion. Two sides of the at least one positioning protrusion are covered by the at least one engaging member. The at least one engaging member of the at least one second transmission portion provides dual-direction protection feature so as to reduce wearing when the flywheels | 07-21-2011 |
20110193406 | TUBULAR PORTION OF BICYCLE HUB - A bicycle hub includes a tubular portion which is fixed to the hub and includes at least one first transmission portion and at least one second transmission portion. The first transmission portion extends axially and radially outward from the tubular portion. The at least one second transmission portion includes at least one positioning protrusion on the tubular portion and at least one engaging member which has a first end mounted to the at least one positioning protrusion so as to form the at least one second transmission portion. Two sides of the at least one positioning protrusion are covered by the at least one engaging member. The at least one engaging member of the at least one second transmission portion provides dual-direction protection feature so as to reduce wearing when the flywheels | 08-11-2011 |
20110220449 | BICYCLE HUB ASSEMBLY WITH TWO BEARINGS - A bicycle hub assembly includes a hub having a driving tube connected one end thereof and the driving tube includes a ratchet portion and a sprocket portion respectively defined in an outer periphery thereof. A first recess and a second recess are defined in an inner periphery of the driving tube, wherein the first recess is located corresponding to the ratchet portion and the second recess is located corresponding to the sprocket portion. A ratchet unit is mounted to the ratchet portion and a sprocket unit is mounted to the sprocket portion. A first rotary member and a second rotary member are engaged with the first recess and the second recess respectively. | 09-15-2011 |
20110220450 | HUB RATCHET DRIVING DEVICE FOR BICYCLES - A hub ratchet driving assembly includes a hub and a driving member is connected to an end of the hub. The driving member includes a driving portion which has first and second recesses defined in an outer surface thereof so as to receive a pawl and a spring member therein. A teeth ring is connected to the hub and includes multiple teeth in an inner periphery thereof. The spring member biases the pawl so as to provide a return force to the pawl. The pawl includes two ratchet teeth which are engaged with the teeth of the teeth ring. A positioning unit has a first positioning slot defined in the driving portion and a second positioning slot is defined in the pawl. A positioning ring is mounted to the first and second slots so as to prevent the pawl from disengaging from the driving portion in axial direction. | 09-15-2011 |
20110221263 | ROTARY UNIT FOR BICYCLE HUB ASSEMBLY - A hub assembly includes a hub and a driving tube is connected to one end of the hub, the driving tube includes a connection end and a sprocket portion located on two ends thereof. The connection portion is inserted into the hub and the sprocket portion has a reception hole defined in an end thereof. An axle extends through the hub and the driving tube. A rotary unit is located between the reception hole and the axle, and includes a tubular member which is mounted to the axle and includes a stop flange. At least one space is defined between the tubular member, the stop flange and an inner periphery of the reception hole. At least one self-lubricating bearing is located in the space and two sides of the self-lubricating bearing are well positioned by the stop flange and the locking unit. | 09-15-2011 |
20120133199 | BICYCLE HUB ASSEMBLY WITH TWO TRANSMISSION DIRECTIONS - A bicycle hub assembly includes a hub and a tubular portion extends from one end of the hub. A sprocket is connected to the tubular portion. A ratchet unit is located between the hub and the transmission unit so that the hub and the transmission unit are operatively connected to each other indirectly and in one way by the ratchet unit. A control unit has first positioning portions on the hub and second positioning portions integrally formed with the tubular portion. The first positioning portions and the second positioning portions are connected to each other by bolts, and the first positioning portions and the second positioning portions are separated from each other when the bolts are removed. The hub assembly can be switched between direct and two-way transmission into indirect and one-way transmission by arrangement of the bolts. | 05-31-2012 |
20120145852 | POSITIONING DEVICE FOR BATTERY BOX - A positioning device includes a battery box having a first connection base and a second connection base on two ends thereof. The first connection base has two first positioning members on two sides thereof. A first fixing base includes a first reception space for receiving the first connection base and the first fixing base is pivotable relative to the first fixing base. A second fixing base is connected to the second positioning portion. The positioning recess guides the positioning members on the first connection base to slide and pivot. The second connection base is connected to the second fixing base. The battery box is easily taken out and installed. | 06-14-2012 |
20120193972 | BEARING POSITIONING DEVICE FOR HUB ASSEMBLY - A bearing positioning device for hub assembly includes a hub with a sleeve connected thereto, and an axle extends through the hub and the sleeve. A ratchet part extends from the sleeve and the sleeve has an engaging hole through which the axle extends. An inner bearing is mounted to an inner ring of the axle. A contact unit has at least one contact member which is mounted to the axle and has a flange whose diameter is larger than the inner diameter of the engaging hole. A contact surface is formed on one side of the at least one contact member and contacts on a side of the inner ring. The engaging hole is reduced so that the thickness of the sleeve is not reduced so as to reduce the wearing of the tools and the machining time required. | 08-02-2012 |
20120228923 | TWO-DIRECTION HUB ASSEMBLY - A hub assembly includes a hub and an axle extending through the hub. A ratchet ring is located in the hub and has multiple ratchet teeth in an inside thereof. A transmission unit has a ratchet part located in the ratchet ring and the ratchet part has at least one transmission recess and at least one positioning recess defined in an outside thereof. The at least one transmission recess and the at least one positioning recess respectively have a transmission piece and a positioning pieces rotatably received therein. The transmission piece has a driving end engaged with one of the ratchet teeth. A resilient ring restricts the transmission piece and the positioning piece on the ratchet part. By the switch the transmission piece and the positioning piece, the transmission direction can be changed. | 09-13-2012 |
Patent application number | Description | Published |
20080264215 | Tool device for driving various tool members - A tool device includes a shaft having a noncircular socket opening for slidbly and tiltably receiving a three-dimensional engaging member of a tool member for allowing the tool member to be tilted relative to the shaft to different angular position, and the shaft includes an engaging hole for receiving a driven member, a control ferrule may retain the shaft in line with the tool member, and a sleeve includes a non-circular opening for engaging with another driven member, the sleeve is rotatable in concert with the shaft for allowing the driven members of different diameters or dimensions to be selectively rotated or driven by the shaft and the sleeve. | 10-30-2008 |
20090085308 | Tool connector having different driving members - A tool connector includes a outer sleeve having a noncircular bore, and a tool shank slidably engaged in the bore of the outer sleeve and having two end portions slidably engaged in the bore at two end portions of the outer sleeve and extendible out of the end portions of the outer sleeve for engaging with different tool elements or for driving different tool elements. One of the end portions of the tool shank may be engaged into the bore of the outer sleeve when the other end portion of the tool shank is extended out of the outer sleeve for allowing a tool member to be engaged with the bore of the outer sleeve and for allowing different tool elements to be driven by the tool connector. | 04-02-2009 |
20090107304 | Tool retaining device for power tool - A tool retaining device includes a tool stem having a compartment for receiving a tool member, and one or more apertures and one or more openings for receiving one or more detent and one or more locking balls, and a barrel engaged onto the tool stem and having one or more peripheral slots and peripheral recesses for selectively receiving the detents and the locking balls respectively, and the barrel includes a peripheral actuator for actuating the detent to engage with the tool member, and another actuator for actuating the locking ball to rotatably securing the tool member to the tool stem when the peripheral actuator is disengaged from the detent. | 04-30-2009 |
20090139378 | Driver tool having adjustable structure - A driver tool includes a driver shank having a non-circular engaging hole for engaging with a tool member, a sleeve slidably engaged onto the driver shank and limited to slide relative to the driver shank, and an adjusting device for adjusting the sleeve relative to the driver shank to limit and to determine a sliding movement of the sleeve relative to the driver shank or to determine the outwardly extending of the tool member relative to the sleeve for allowing the tool member to suitably drive the fastener and for preventing the fastener from being deeply driven or engaged into the work pieces or for preventing the fastener from being damaged by the tool member. | 06-04-2009 |
20090139379 | Driver tool for driving various tool members - A driver tool includes a driver shank having a non-circular engaging hole formed in one end for changeably engaging with either of two end portions of a tool stem, and the end portions of the tool stem may be engaged with different tool members, a detent is slidably engaged in the driver shank for detachably anchoring the tool stem to the driver shank, a sleeve is slidably engaged onto the driver shank and biased by a biasing device for engaging with the detent and for selectively forcing the detent to engage with the tool stem and for detachably anchoring and securing the tool stem to the driver shank, and for allowing different tool members to be changeably rotated or driven by the driver shank. | 06-04-2009 |
20100008739 | Power tool combination - A power tool combination includes a power driving device having a chuck device attached to a barrel for engaging with a driven tool member, a control ferrule engaged onto the barrel, and a non-circular member, and a tool device includes a housing having a bore for receiving the driven tool member, and having a compartment for receiving the barrel, and having a non-circular engaging member for engaging with the non-circular member and for allowing the housing to be rotated by the power driving device. The tool device includes a tool element attached to the housing, and a securing device for detachably attaching the tool element to the housing. | 01-14-2010 |