摘要:
A vehicle transmission has first and second shafts rotatable in a housing, a spring applied, pressure released bake mechanism for preventing vehicle movement, and a torque disconnect mechanism for controlling transmission of torque from the first shaft to the second shaft. An interlock mechanism includes an opening formed in the housing through which an operator may access the torque disconnect mechanism, a fluid pressure supply passage for communicating pressurized fluid to the brake mechanism, a dump port formed in the housing in a wall of the opening, a pressure dump passage communicating the supply passage with the dump port, and a plug member mountable in the opening. The plug member closes the dump port and closes communication between the dump passage and the environment when the plug member is mounted in the opening The dump port and the dump passage are communicated with the environment, and the brake is spring applied when the plug member is removed from the opening.
摘要:
A torque limiting device for limiting torque applied to a shaft comprises an input shaft, an output shaft, and a clutch arrangement having input and output clutch elements coupled to the input and output shafts respectively. One of the clutch elements is axially moveable with respect to the other clutch element in response to a torque being applied to the output shaft which is in excess of a predetermined torque limit. An indicator arrangement is arranged to provide an indication that the torque applied to the output shaft exceeds the predetermined torque limit and to provide a further indication of the direction of rotation of the input shaft when the predetermined torque limit is exceeded.
摘要:
A vehicle auxiliary braking system is provided to accomplish a braking effect similar to engine braking inexpensively, to extend the life of the brakes, and to reduce the work cycle time in order to improve work efficiency. The system has a centrifugal sensor 20, an accelerator sensor 21, and a braking clutch engaging means that includes a braking hydraulic circuit 22. The centrifugal sensor 20 detects that the vehicle is traveling when the vehicle is moving at or above a prescribed speed. Accelerator sensor 21 detects when the depression amount of the accelerator pedal 6 is at or below a prescribed amount. The braking clutch engaging means engages the clutch that corresponds to the opposite travel direction when the vehicle is traveling at or above the prescribed speed and the accelerator depression amount is at or below the prescribed depression amount.
摘要:
To provide an inexpensive parking lock mechanism for a countershaft transmissions, the transmission shaft is locked relative to a bearing outer race of a tapered roller bearing. This bearing outer race is rotationally fixed relative to the transmission housing and one of two tapered roller bearings which are mutually arranged in an X and support the transmission shaft.
摘要:
The invention relates to a latch arrangement for a vehicle. The latch arrangement includes a latch element which cooperates with a gear wheel that is rotatable in a gear box. When the latch element is inserted between two teeth of the gear wheel, the vehicle is prevented from moving. The gear box includes a control unit connected to a gear lever. The control unit controls the gear box in relation to the setting of the gear lever. The control unit is able to guide the latch element to the position inserted between the teeth should the connection between the control unit and the gear lever become interrupted.
摘要:
A shift control system rotates an actuator to allow a wall of a detent plate and a roller of a detent spring to contact each other and then detects the position of contact so as to detect the position of the wall of the detent plate. After the wall position is determined, the actuator is driven in the direction opposite to the wall until the actuator reaches a position located before the wall position and distant therefrom by a predetermined amount, in order to cancel flexure or extension of the detent spring that is caused when the detent spring is pushed against the wall of the detent plate. Accordingly, such a situation where the shift position is moved by the recovery force of the detent spring can be avoided.
摘要:
A bicycle hub dynamo comprises a hub spindle adapted to be mounted to a frame of the bicycle; a hub body disposed around the hub spindle, wherein the hub body has a pair of axially spaced hub flanges; a plurality of bearings disposed between the hub body and the hub spindle for rotatably supporting the hub body relative to the hub spindle; and a generator disposed between the hub body and the hub spindle, wherein the generator generates electricity in response to rotation of the hub body relative to the hub spindle. A freewheel is disposed on a first side of the hub body, wherein the freewheel is adapted to mount a plurality of sprockets.
摘要:
A one-way clutch includes a chamber containing a roller that moves in response to changes in the angular position of a component relative to an axis, such as in response to the slope of a surface on which a wheel is supported, to engage and disengage alternately a one-way drive connection between a non-rotating component and a component that rotates with the wheel. The wheel is prevented from rolling backward on an inclined surface due to this engagement and is free to ascend the inclined surface due to the disengagement.
摘要:
A control unit for the gear or shift program selection of an automatic transmission of a motor vehicle is presented, which has a emergency release mechanism, by which a parking brake of the motor vehicle transmission can be released by means of an operating device that can be actuated by the driver, with a housing (3) and a selector lever (1), which can be brought into at least two end positions, in which nullcontrol unitnull the operating device of the emergency release mechanism is an integral part of the control unit, and in which the operating device has a detachable stop element (7), which is secured in a mount (9) of the control unit by means of a coded release mechanism (15) and which acts as a movement limitation for the release movement of the parking brake by the operating device of the emergency release mechanism in the non-actuated state. The emergency release mechanism can also be actuated due to this novel design even with the control unit only, and, moreover, increased requirements on theft protection can be met.
摘要:
In an emergency brake mechanism of the present invention, a rotation input shaft is increased in rotation speed by a planetary set-up gear to centrifuge weights, so that through the action of the centrifugal force of the weights, linings of the brake shoes are brought into press-contact with a fixed portion, to reduce rotation of the rotation input shaft, such that a large braking power is produced for a compact emergency brake mechanism.