Abstract:
A damping device (14) for movable furniture parts comprising a fluid damper which is in the form of a rotational damper (20) and which includes two members which are rotatably movable relative to each other, namely a housing and a drum disposed in the housing. A damping fluid, for example a silicone oil, is disposed in the housing. During the damping action one of the two members is rotated by an actuating member and the other member is held fast. The rotational damper (20) is radially displaceably mounted and during the damping action is pressed by the actuating member against a retaining element (17).
Abstract:
A control method of sliding a vehicle door by a powered sliding device with a clutch mechanism comprises the steps of stopping a motor in a state that a rotation of a wire drum is restricted by an auxiliary brake when the slide door reaches at a desired semi-open position; displacing the clutch mechanism into a second coupled state by the motor while the auxiliary brake is actuated; releasing the restriction by the auxiliary brake when a predetermined time has elapsed.
Abstract:
A motor vehicle has a pivoting door that pivots upward and downward. A control device for controlling the pivoting door comprises an electric drive unit that drives the pivoting door by an electric power; a door operation switch that permits the pivoting door to pivot between a full-close position and a full-open position with the aid of the electric drive unit when operated; a movement stopping structure that stops and holds the pivoting door at a half-open position when operated; and a control unit that controls the electric drive unit and the movement stopping structure in accordance with an ON/OFF operation of the door operation switch.
Abstract:
To provide a rotary damper in which a viscous fluid does not leak from between an inner end face of a land and an outer circumferential surface of a rotatable member, and a decrease in torque caused by an eccentric rotation of the rotating member is prevented. The rotary damper has a rotatable member being relatively rotatable with respect to a casing, the proximal portion of the rotatable member being accommodated in a chamber of the case; a ridge member extending axially along and projecting radially outwardly from an outer circumferential surface of the proximal portion of the rotatable member, the ridge member having a radially outer end face disposed for sliding contact with an inner circumferential surface of the chamber; and the land extending axially along and projecting inwardly from the inner circumferential surface of the chamber, the land having a face transverse with respect to the rotational direction of the rotatable member. The ridge member and the land divide an interior of the chamber into a compression compartment and a decompression compartment, the volume of these compartments being variable complementarily to each other in response to the relative rotation of the rotatable member and the casing. A spacer is interposed between the land and the proximal portion of the rotatable member and adapted to be pressed against the outer circumferential surface of the proximal portion and the transverse face of the land by the pressure built up in the compression compartment in response to rotation of the rotatable member.
Abstract:
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.
Abstract:
To provide a rotary damper having a compact shape with a short axial length and capable of absorbing an extremely high torque acting temporarily in the case of a door abruptly closing. In a rotary damper (1) in which a rotary member (5) includes: a basement portion (6) axially supported by a drive shaft (4); a torque adjustor (7) capable of relatively moving on the drive shaft (4); a slide member (8) positioned through and facing the torque adjustor (7); and a spring (9) for energizing the slide member (8) to a cam, the slide member (8) is moved in the radial direction by relatively moving the torque adjustor (7) to a position having a predetermined angle against the drive shaft (4), and a predetermined radial clearance is formed between an outer surface (8b) of the slide member (8) and an inner peripheral surface (3a) of a chamber, thereby changing the clearance to change a torque generated by the rotation of the rotational member (5).
Abstract:
An overhead door with a pair of stays and a respective stay holding tension springs. Each of the stays is rotatably fitted to the inner surface of a corresponding lateral wall of a cabinet main body by way of a rotary shaft and have their front end pivotably secured to the door at a position close to the lower edge of the door. Each of the stay holding tension springs are so arranged that each of them is hooked at an end to a position located upward and forward relative to the corresponding rotary shaft on the inner surface of the related lateral wall of the cabinet main body and at the opposite end to a middle point of the corresponding stay.
Abstract:
A device for a braked movement of furniture doors in particular with a horizontal rotation axis comprises two attachment pieces (11, 12, 211, 212, 311, 312, 411, 412) that are movable in opposite directions around a common rotation axis (13, 213, 313, 413) in a free manner in one rotation direction and against a resisting force of a friction joint in the other rotation direction. Between an attachment piece and the friction joint the device comprises a first surface (28, 228, 328, 428) and a second surface (27, 227, 327, 427) facing each other to delimit a space therebetween in which a wedging element (26, 226, 326, 426) is disposed. The extension of the facing surfaces and/or the shape of the wedging element between them are of such a nature that the wedging element tends to fixedly fit between said facing surfaces causing them to rotate integrally with each other when rotation of the two attachment pieces takes place in the direction that must involve a braked movement.
Abstract:
To provide a rotary damper in which a viscous fluid does not leak from between an inner end face of a land and an outer circumferentialsurface of a rotatable member, and a decrease in torque caused by an eccentric rotation of the rotating member is prevented. The rotary damper comprises: the rotatable member being relatively rotatable with respect to a casing, the proximal portion of the rotatable member being accommodated in a chamber of the case; a ridge member extending axially along and projectiong radially outwardly from an outer circumferential surface of the proximal portion of the rotatable member, the ridge member having a radially outer end face disposed for sliding contact with an inner circumferential surface of the chamber; and the land extending axially along and projecting inwardly from the inner circumferential surface of the chamber, the land having a face transverse face transversely with respect to the rotational direction of the rotatable member. The ridge member and the land divide an interior of the chamber into a compression compartment and a decompression compartment, the volume of these compartment being variable complementarily to each other in response to the relative rotation of the rotatable member and the casing. A spacer is interposed between the land and the proximal portion of the rotatable member and adapted to be pressed against the outer circumferential surface o the proximal portion and the transverse face of the land by the pressure built up in the compression compartment in response to rotation of the rotatable member.
Abstract:
A front lid opening and closing assist which enables an easy and safe operation of opening and closing a front lid of a keyboard instrument. A buffer in the front lid opening and closing assist has a first damping mechanism for damping the front lid when pivoted from a neutral position to an open position, and a second damping mechanism for damping the front lid when pivoted from the neutral position to a closed position. When the front lid is pivoted beyond the neutral position, it spontaneously pivots toward the open or closed position by its own weight. However, this motion is damped by the first and second damping mechanisms, which results in a slowed pivot motion of the front lid. As a result, a user can safely open or close the front lid relative to a back lid, with only minimal force for supporting the front lid.