摘要:
A throttle assembly for a tracked vehicle comprises a tube rotatably mounted on a steering member of the vehicle. A throttle housing is mounted on the tube. A throttle lever has a proximal end and a distal end and is pivotally mounted on the throttle housing. The throttle lever is pivotable about the distal end of the throttle lever on the throttle housing. A biasing element provides a biasing force to the tube. The biasing element is connected to the steering member.
摘要:
A bicycle shift control device for controlling a gas actuated shifting device includes a housing; a first gas valve actuating member; a second gas valve actuating member; a first shift member coupled to the housing for movement in a first direction, wherein the first shift member is operatively coupled to the first gas valve actuating member; and a second shift member coupled to the housing for movement in a second direction, wherein the second shift member is operatively coupled to the second gas valve actuating member.
摘要:
A camera dolly has a steering unit which provides conventional, crab, and round steering modes, selected by the operator via use of a single steering/shifting handle. The steering unit includes first and second transmissions and a differential. Chains link sprockets on the transmissions and differential, to steer the wheels of the camera dolly to appropriate angles, so that the dolly can roll easily and without wheel scrubbing. A dolly leg position compensator adjusts the amount of steering angle correction provided by the differential, to compensate for changes in the dolly wheelbase/tread dimensions. Sprockets in the differential are locked into offset positions, during conventional and round steering, to maintain proper steering angle correction, even under heavy loads. Active idlers are mechanically linked within the steering unit to automatically maintain appropriate chain tension, in all steering modes.
摘要:
A foldable rod linkage for connecting a handgrip to a front wheel of a foldable stroller includes a lower mount member having front lateral walls extending rearwardly from two ends of an upright front wall, an upward abutment wall between the left and right front lateral walls, an upright bore for receiving an upper end of a front rod, and rear lateral walls extending respectively from the front lateral walls. An upper slide body has a through-hole to permit extension of a handle rod such that a lower end of the latter is pivoted on the rear lateral walls, and a downward abutment wall to mate with the upward abutment wall when the linkage is in an unfolded position. An operating device is mounted movably on the handgrip, and includes a pull rod having a lower end mounted on the slide body such that upward pulling of the pull rod will result in disengagement of the slide body from the lower mount member.
摘要:
An external gear position sensing unit for attachment to a shift control device includes a sensor housing, a first electrical contact member supported to the sensor housing, a support member rotatably supported to the sensor housing, a second electrical contact member coupled to the support member for movement therewith and for contacting the first electrical contact member, and a coupling member coupled to the support member for movement therewith and exposed to the exterior of the sensor housing. The sensor housing, the support member and the coupling member are coupled together so that the sensor housing, the support member and the coupling member can be attached to the outside surface of the shift control device. If desired, a separate adapter may be coupled to the coupling member and exposed to the exterior of the sensor housing for adapting the sensor unit to different shift control devices.
摘要:
A self-propelled floor covering scraper machine including a frame having front and back ends, two independently controllable wheels, mounted on each side toward the back end of the frame, mechanisms for independently driving each wheel in either a forward or reverse direction, a control mechanism for steering the machine, engaging the driving mechanisms, and controlling the forward and reverse movement of each wheel, and a scraper blade mounted to the front end of the frame at an angle extending downward and forward. The adjustable scraper blade assembly includes a blade bracket, a generally flat scraper blade attachable to the blade bracket, and a shock absorber for the blade during use. The mechanism for controlling the steering and the forward and reverse movement of the vehicle uses a horizontal crossbar rotatably connected at each end to a support on the vehicle. The crossbar's axis of rotation is perpendicular to the forward motion of the vehicle. A generally T-shaped yoke having a cross portion is attached at its center to a straight portion. The other end of the straight portion is rotatably attached to the crossbar. The axis of rotation of the straight portion is perpendicular to the crossbar's axis of rotation. The mechanism uses two linkages connected to each end of the cross portion. The linkages are respectively connected at the other of their ends to the means for controlling the forward and reverse direction of the mechanisms for driving the right and left sides of the vehicle.
摘要:
A bicycle speed change operation assembly (A) of the present invention has a rotatable operation member (2) and is connected to a speed change device of the bicycle via a control cable (C), wherein the assembly includes a first link (3) and a second link (4). An end (3b) of the first link (3) and an end (4b) of the second link are connected for relative pivotal movement. The other end (3a) of the first link 3 is supported so as to be moved circumferentially of the operation member (2) upon rotation thereof. The other end (4a) of the second link (4) is pivotally supported at a fixed point, and an end of the control cable (C) is connected to the second link (4).
摘要:
A speed-change operating device for a bicycle includes an operating lever for actuating a derailleur, the operating lever being supported rotatably through a lever shaft to a base member adapted to be supported on the bicycle. A friction mechanism applies to the lever an adjustable rotational resistance against a bias force of a return spring associated with the derailleur. A positioning mechanism includes a positioning member having a plurality of engaging portions for precisely setting the respective speed change stages of the derailleur and an engaging member engageable with at least one of the engaging portions. An operating mechanism selects between an operating mode and a non-operating mode of the positioning mechanism so that the positioning mechanism can be placed in a non-operating mode, when desired, with the speed-change operation being performed in such non-operating mode only with the friction mechanism resisting the return spring.
摘要:
A throttle mechanism for a vehicle employing a handle grip for steering where the throttle lever is controlled by manual actuation. A shield plate may be provided on the throttle lever to physically block the air flow against the vehicle from flowing directly over the operator's thumb actuating the throttle. Heating elements may be provided to heat a cover on the throttle lever which in turn heats the driver's hand. Heat controlling circuits to effectively reduce the heating input at high temperatures, multiple circuits for both rapid and slow heating and circuitry associated with the vehicle lighting switches may be employed.
摘要:
A bicycle brake actuating device includes a brake lever (21) hinged in such a way to turn around an axis (X) substantially parallel to the supporting axis (Y) of a cyclist's hand. The brake lever can be supported by two tabs (17) placed on the hand's supporting handle (14). A holding cavity (40) is preferably utilized to receive the transmission of the brake lever and the mechanism (30, 32) that is part of the actuating device.