Abstract: The present clutch operating device includes a drive motor and a speed reduction mechanism. The speed reduction mechanism includes a link bar receiving a driving force of the drive motor, a clutch lever that is rotatably coupled to a first end of the link bar while being disposed rotatably with respect to a second cover, and a main roller that is rotatably attached to a second end of the link bar while being disposed to roll on the second cover.

Abstract: An actuator for a twin clutch device includes a single electric motor, first and second drive mechanisms, first and second transmission mechanisms, first and second hydraulic damper mechanisms and a control unit. Each first/second drive mechanism is configured to receive a first/second directional rotation from the electric motor and drive its respective first/second release member in a first operational direction. Each first/second transmission mechanism is configured to transmit only the first/second directional rotation from the electric motor to its respective first/second drive mechanism. Each first/second hydraulic damper mechanism is configured to regulate a moving speed of its respective first/second release member in a second operational direction opposite to the first operational direction. The control unit is configured to control the rotation of the electric motor.

Abstract: An actuator for driving a release mechanism of a clutch includes a motor, an output member, a ball screw mechanism, a trapezoidal screw mechanism and a power transmission mechanism. The output member is coupled to the release mechanism, and is movable in an actuation direction of the release mechanism. The ball screw mechanism is configured to convert rotation of the motor in one direction into movement of the output member in a first axial direction. The trapezoidal screw mechanism has a self-lock function against a reverse driving force from the release mechanism, and is configured to convert rotation of the motor in the other direction into movement of the output member in a second axial direction. The power transmission mechanism is configured to selectively transmit rotation of the motor to the ball screw mechanism or the trapezoidal screw mechanism.

Abstract: A clutch operating device includes a drive mechanism and an assist mechanism. The drive mechanism is configured to generate a driving force and transmit the driving force to a clutch device. The assist mechanism is a mechanism for assisting the drive mechanism and includes a pressure mechanism and a toggle mechanism. The pressure mechanism is configured to generate a pressing force. The toggle mechanism is configured to convert the pressing force of the pressure mechanism into an assist force gradually increased from a power blocked state to a power transmitted state of the clutch device.

Abstract: A clutch operating device includes a drive mechanism and a reduction mechanism. The drive mechanism generates a driving force. The reduction mechanism is a mechanism configured to amplify the driving force by reducing the driving amount to be inputted thereto from the reduction mechanism and convert the amplified driving force into an operating force of a clutch device. The reduction mechanism has a reduction ratio characteristic gradually increasing from a power blocking state to a power transmitting state of the clutch device and is allowed to adjust the reduction ratio characteristic in accordance with a state of the clutch device.

Abstract: An actuator for driving a release mechanism of a clutch includes a motor, an output member, a ball screw mechanism, a trapezoidal screw mechanism and a power transmission mechanism. The output member is coupled to the release mechanism, and is movable in an actuation direction of the release mechanism. The ball screw mechanism is configured to convert rotation of the motor in one direction into movement of the output member in a first axial direction. The trapezoidal screw mechanism has a self-lock function against a reverse driving force from the release mechanism, and is configured to convert rotation of the motor in the other direction into movement of the output member in a second axial direction. The power transmission mechanism is configured to selectively transmit rotation of the motor to the ball screw mechanism or the trapezoidal screw mechanism.

Abstract: An actuator for a twin clutch device includes a single electric motor, first and second drive mechanisms, first and second transmission mechanisms, first and second hydraulic damper mechanisms and a control unit. Each first/second drive mechanism is configured to receive a first/second directional rotation from the electric motor and drive its respective first/second release member in a first operational direction. Each first/second transmission mechanism is configured to transmit only the first/second directional rotation from the electric motor to its respective first/second drive mechanism. Each first/second hydraulic damper mechanism is configured to regulate a moving speed of its respective first/second release member in a second operational direction opposite to the first operational direction. The control unit is configured to control the rotation of the electric motor.

Abstract: The present clutch operating device includes a drive motor and a speed reduction mechanism. The speed reduction mechanism includes a link bar receiving a driving force of the drive motor, a clutch lever that is rotatably coupled to a first end of the link bar while being disposed rotatably with respect to a second cover, and a main roller that is rotatably attached to a second end of the link bar while being disposed to roll on the second cover.

Abstract: A clutch operating device includes a drive mechanism and a reduction mechanism. The drive mechanism generates a driving force. The reduction mechanism is a mechanism configured to amplify the driving force by reducing the driving amount to be inputted thereto from the reduction mechanism and convert the amplified driving force into an operating force of a clutch device. The reduction mechanism has a reduction ratio characteristic gradually increasing from a power blocking state to a power transmitting state of the clutch device and is allowed to adjust the reduction ratio characteristic in accordance with a state of the clutch device.

Abstract: A clutch operating device includes a drive mechanism and an assist mechanism. The drive mechanism is configured to generate a driving force and transmit the driving force to a clutch device. The assist mechanism is a mechanism for assisting the drive mechanism and includes a pressure mechanism and a toggle mechanism. The pressure mechanism is configured to generate a pressing force. The toggle mechanism is configured to convert the pressing force of the pressure mechanism into an assist force gradually increased from a power blocked state to a power transmitted state of the clutch device.

Abstract: A clutch engaging and disengaging apparatus 1 is provided with a motor 2, a motion converting mechanism 3 that converts the rotational motion of the motor 2 into linear motion, a load storing mechanism 4 that stores a load when the motion converting mechanism 3 moves linearly in one direction and releases the stored load when the motion converting mechanism 3 moves linearly in the opposite direction, and a hydraulic mechanism 6 that uses the linear motion of the motion converting mechanism to produce hydraulic pressure and engage or disengage the clutch. The load storing mechanism 4 has an assist spring 41 that is coupled to the motion converting mechanism 3 and can extend and contract in response to the linear motion of the motion converting mechanism 3 and a spring cover 44 that supports an axially facing end part of the assist spring 41.

Abstract: A clutch engaging and disengaging apparatus 1 is provided with a motor 2, a motion converting mechanism 3 that converts the rotational motion of the motor 2 into linear motion, a load storing mechanism 4 that stores a load when the motion converting mechanism 3 moves linearly in one direction and releases the stored load when the motion converting mechanism 3 moves linearly in the opposite direction, and a hydraulic mechanism 6 that uses the linear motion of the motion converting mechanism to produce hydraulic pressure and engage or disengage the clutch. The load storing mechanism 4 has an assist spring 41 that is coupled to the motion converting mechanism 3 and can extend and contract in response to the linear motion of the motion converting mechanism 3 and a spring cover 44 that supports an axially facing end part of the assist spring 41.

Abstract: The present invention configures a pushcart, in particular a baggage cart such as is used in airports, for ease of maneuverability in negotiating an escalator stairway. The cart is fitted with a front wheel assembly and pivotable rear wheel assemblies, as well as with drop-attenuating mechanisms fitted to each wheel assembly. The rear wheel assemblies each include a reverse-releasable, pivoting-lock mechanism. The drop attenuating mechanisms function when the pivotable wheel assemblies are locked in the pushcart advancing direction, and include damped-swing traction members for establishing adhesive friction in contacting the treads of a sloping escalator stairway. The traction members bear the pushcart through a damped swing if the wheel assemblies are not riding on the treads of the escalator steps.

Abstract: In the front wheel assembly of a luggage or shopping cart, a sensor wheel is supported by a wheel bracket between a pair of caster wheels so as to be rotatable around a common horizontal wheel shaft and moveable downward from a neutral position coaxial with the caster wheels. Thus, even when the cart is tilted sideways, one of the caster wheels always support the load of the cart, and serves as a center of pivotal movement of the front wheel assembly which allows the sensor wheel to be safely lifted out of the slot in the floor. Therefore, the sensor wheel is prevented from being wedged in the slot, and would not be damaged substantially under any circumstances. Additionally, a first locking arrangement allows the cart to be stationary on the conveyor surface, and a second locking arrangement allows the front wheel to remain in the straight ahead position even when the front wheel assembly hangs from an edge of a step of an escalator.

Abstract: A fall suppressing device 8 provided in a cart for moving up and down an escalator includes an engagement member 87 and an oil damper 81. The engagement member 87 is vertically movably coupled to the cart, and engages with an upper step when a wheel 5 falls from the upper step. The oil damper 81 damps a relative moving speed between a cart body and the engagement member 87.

Abstract: A powered vehicle is configured to stably and reliably ride on an escalator and includes a vehicle body (1), front and rear wheels (2) and (3), a drive mechanism (42), and front and rear supports (4) and (5). The front and rear wheels (2) and (3) are supported on front and rear portions of the vehicle body, respectively. The drive mechanism (42) drives the rear wheels. The front and rear supports (4) and (5) are arranged adjacent to the corresponding front wheels (2) and behind the rear wheels (3), respectively. The front or rear supports (4) and (5) land on the step surface at least when the vehicle body (1) is inclined at a maximum inclination portion of the escalator. At this time, the wheels (2) or (3) remote from the landed supports (5) or (4) land on another step of the escalator.

Abstract: A bicycle is provided with a frame and a drive portion. The frame is at least partially hollow, and at least part of the drive portion is disposed in an interior of the frame. The drive portion includes a crank and a plurality of transmission means, in which one of the transmission means rotates another transmission means at a rotational speed higher than a rotational speed of the crank, which in turn rotates the rear wheel of the bicycle.

Abstract: A motorized cart is disclosed which allows a rider to safely ride an escalator. The motorized cart includes front wheels 2 and rear wheels 3 mounted on a vehicle body 1. A first support portion 6 is formed on the bottom of the vehicle body 1, and includes a plurality of contact portions which support the vehicle body 1 on the step surfaces of the escalator when it reaches the maximum inclined portion of the escalator.

Abstract: A stairway ascending/descending vehicle which may ascend/descend the steps of the stairs having a height greater than a diameter of wheels and in which vertical vibration is suppressed. The stairway ascending/descending vehicle has main shafts rotatably supported on a front portion and a rear portion of a vehicle body, respectively. Front arm members 4L and 4R are mounted to the front main shafts, and rear arm members 5L and 5R are mounted to the rear main shaft, the front and rear arm members are configured to rotate with respect to the main shafts. Front wheels 6a and 6b are mounted on the front arm members and rear wheels 7a and 7b are to the rear arm members. Torque transmitted from each of the main shafts is transmitted through a first gear 12 connected to the main shafts to second gears 13a and 13b and third gears 14a and 14b to the wheels, the gears 12, 13a, 13b, 14a and 14b all being supported within the arm members, the gears 14a and 14b being connected to the wheels.

Abstract: A vehicle which goes up and down stairs includes a vehicle body (101), front and rear wheels (102) and (103) provided at the front and rear of the vehicle body (101), respectively, front and rear auxiliary wheels (105) and (107) for lifting up or down the front and rear wheels (102) and (103) by one step of stairs, respectively, a driving unit for driving each wheel, a pivoting unit for pivoting the front and rear auxiliary wheels (105) and (107), sensors (121) to (124) for detecting a riser portion of stairs, and a control unit (120) for controlling the driving unit and the rotating unit in accordance with results of the sensors (121) to (124). Since the vehicle goes up and down stairs by rotation of the auxiliary wheels (105) and (107), a corner portion of the step of stairs is not damaged while the vehicle goes up and down stairs.