Abstract: A reverse input blocking clutch comprises, as main elements, an input member, an output member, a stationary member for constraining the revolutions, locking means, lock release means and torque transmission means. By forming the input member, the output member, the stationary member and a fixed side plate from metal plates such as press worked steel plates, a compact, lightweight and low cost reverse input blocking clutch is provided. Reverse input torque from the output member is locked in both the forward and reverse rotational directions relative to the stationary member, by rollers which function as the locking means. Input torque from the input member in both the forward and reverse rotational directions is transmitted to the output member via apertures 1d and protrusions which function as the torque transmission means.

Abstract: An electric assisted bicycle of simple structure is provided which is superior in the stability, reliability, and certainty of operation, and is provided with an electric power regenerative function and a brake assist function. A pedal force transmitted from a crank shaft is transmitted to an axle shaft via first transmission means, and the output of a motor as an assistant motive power is transmitted to the axle shaft via a clutch unit, which can switch a lock direction in conjunction with brake operation by a cyclist, and second transmission means.

Abstract: The toner bottle exchangeably used in an image forming apparatus. The toner bottle includes a bottle body having a substantially cylindrical shape and configured to contain toner, a gear configured to rotate a part of the toner bottle, a cap attached to the bottle body and including an opening arranged in a circumferential surface of the cap and configured to output toner to a development apparatus of the image forming apparatus, a toner conveyance mechanism arranged in the bottle body and configured to convey the toner to the opening.

Abstract: A clutch unit comprises an outer ring 1 as an input-side member, an output shaft 2 as an output-side member, an inner ring 3 as a control member, an outer ring 4 as a stationary-side member, a first clutch part 5 interposed between the outer ring 1 and the inner ring 3m, and a second clutch part 6 interposed between the outer ring 4 and the output shaft 2. Input torque input from an operation lever 13 is transmitted in the path of the outer ring 1?the first clutch part 5?the inner ring 3?the output shaft 2. Reverse input torque input from the output shaft 2 is locked with the outer ring 4 through the second clutch part 6.

Abstract: A clutch, which is applicable to the applications where an electromagnetic clutch is conventionally used, is provided in order to realize the reduction of the clutch in size, weight and cost and the power saving of the clutch. A clutch according to the present invention includes: an input gear to which a rotational torque is input; a clutch member attached to an inner circumferential face of the input gear; a tapered roller acting as an engaging element; a retainer for holding the tapered roller; a cap member; a waved spring; an output shaft serving as a driven member; a housing for sheathing the input gear; a working member equipped with an operating lever; and a return spring serving as an elastic return member, for elastically supporting the working member.

Abstract: A reverse-input shutoff clutch according to the invention includes an outer ring as an input-side rotation member, an inner ring as an output-side rotation member, rollers as torque transmission means, a cage for retaining the roller, a centering spring as an elastic member for positioning the cage, a housing as a stationary-side member, and a sliding spring coupled to and co-rotate with the cage while sliding against the housing. With the constitution described above, the clutch applies rotational resistance induced by friction resistance to the cage.

Abstract: An electric assisted bicycle of simple structure is provided which is superior in the stability, reliability, and certainty of operation, and is provided with an electric power regenerative function and a brake assist function. A pedal force transmitted from a crank shaft is transmitted to an axle shaft via first transmission means, and the output of a motor as an assistant motive power is transmitted to the axle shaft via a clutch unit, which can switch a lock direction in conjunction with brake operation by a cyclist, and second transmission means.

Abstract: A clutch, which is applicable to the applications where an electromagnetic clutch is conventionally used, is provided in order to realize the reduction of the clutch in size, weight and cost and the power saving of the clutch. A clutch according to the present invention includes: an input gear to which a rotational torque is input; a clutch member attached to an inner circumferential face of the input gear; a tapered roller acting as an engaging element; a retainer for holding the tapered roller; a cap member; a waved spring; an output shaft serving as a driven member; a housing for sheathing the input gear; a working member equipped with an operating lever; and a return spring serving as an elastic return member, for elastically supporting the working member.

Abstract: A clutch unit comprises an outer ring 1 as an input-side member, an output shaft 2 as an output-side member, an inner ring 3 as a control member, an outer ring 4 as a stationary-side member, a first clutch part 5 interposed between the outer ring 1 and the inner ring 3m, and a second clutch part 6 interposed between the outer ring 4 and the output shaft 2. Input torque input from an operation lever 13 is transmitted in the path of the outer ring 1→the first clutch part 5→the inner ring 3→the output shaft 2. Reverse input torque input from the output shaft 2 is locked with the outer ring 4 through the second clutch part 6.

Abstract: A reverse input blocking clutch comprises, as main elements, an input member, an output member, a stationary member for constraining the revolutions, locking means, lock release means and torque transmission means. By forming the input member, the output member, the stationary member and a fixed side plate from metal plates such as press worked steel plates, a compact, lightweight and low cost reverse input blocking clutch is provided. Reverse input torque from the output member is locked in both the forward and reverse rotational directions relative to the stationary member, by rollers which function as the locking means. Input torque from the input member in both the forward and reverse rotational directions is transmitted to the output member via apertures 1d and protrusions which function as the torque transmission means.

Abstract: A reverse input blocking clutch comprises, as main elements, an input member, an output member, a stationary member for constraining the revolutions, locking device, lock release device and torque transmission device. By forming the input member, the output member, the stationary member and a fixed side plate from metal plates such as press worked steel plates, a compact, lightweight and low cost reverse input blocking clutch is provided. Reverse input torque from the output member is locked in both the forward and reverse rotational directions relative to the stationary member, by rollers which function as the locking device. Input torque from the input member in both the forward and reverse rotational directions is transmitted to the output member via apertures 1d and protrusions which function as the torque transmission device.

Abstract: An engine valve (6) such as an intake valve or exhaust valve is driven to open or close a corresponding intake or exhaust port by attracting an armature (1) onto one of first and second electromagnets (2, 3) and a position of the armature, viz., the position of the engine valve is measured by a permanent magnet (7) and a Hall effect device (8). An adhesive layer (9) whose hardness is lower than the drive axle (5) is used to attach the permanent magnet (7) onto the drive axle (5).

Abstract: A clutch unit includes an outer ring, an inner rings a plurality of rollers, a retainer for retaining the rollers, and a centering spring mounted in the retainer. A plurality of cam surfaces are formed at equal intervals at the inner circumference of the outer ring, and a circumferential surface is formed at the outer circumference of the inner ring. An operation member is mounted at the outer circumference of the outer ring, and an input torque is provided to the outer ring from the operation member. The inner ring is coupled to an output member. A pair of engaging portions in the centering spring are engaged with a stationary side member, which couples the retainer to the stationary side member through the centering spring in the pivotal direction.

Abstract: A color image forming apparatus includes a main body and a toner container setting part configured to set a plurality of toner containers individually therein. Each toner container contains a toner of a different color, and the setting part includes a receiving member configured to receive the plurality of toner containers inserted therein. The plurality of toner containers, inserted in the receiving member, are partially exposed.

Abstract: A reverse-input shutoff clutch according to the invention includes an outer ring as an input-side rotation member, an inner ring as an output-side rotation member, rollers as torque transmission means, a cage for retaining the roller, a centering spring as an elastic member for positioning the cage, a housing as a stationary-side member, and a sliding spring coupled to and co-rotate with the cage while sliding against the housing. With the constitution described above, the clutch applies rotational resistance induced by friction resistance to the cage.