Abstract: A window up-and-down-winding-type shielding apparatus for a conveyance includes: a pair of guide rails that are parallel to each other and that extend in an up-and-down direction; a moving member that is connected to a lower end of a shielding member and that can be moved in the up-and-down direction along the guide rails; a winding mechanism that has a rotation section for retractably winding the shielding member; a biasing force application device that applies a biasing force to the rotation section of the winding mechanism in a direction along which the shielding member is wound; a motion conversion mechanism that converts the movement of the moving member in up-and-down direction along the guide rails to a rotational motion; and an axis member that is coordinated with the motion conversion mechanism to have a rotational motion in accordance with the up-and-down movement of the moving member.

Abstract: It is an object to decrease the size of the intake unit and to increase possibility of incorporating this intake unit to the existing drawer, sliding door, and so on. The intake unit engaging with a projection portion of the drawing device to move a drawer in the predetermined direction comprises a basic substrate; a cylindrical shock absorber; a movement member releasably engaged at one end of movement stroke; a pulley supported on the side of movement of the cylindrical shock absorber; and a flexible member in which a middle portion thereof is suspended to the pulley, one end is connected to said movement member, and the other end is connected to said basic substrate. When the movement member is released from the lock state, said movement member moves by predetermined stroke in one direction due to urging force of the urging member, and against this movement, a brake of said cylindrical shock absorber is applied through said flexible member.

Abstract: A planetary gear type reduction gear with torque limiter including an input shaft (7) of an output shaft of a DC motor and an output shaft (14) are journalized on a stationary member (11). At least one stage of the planetary gear type reduction mechanism includes a central gear (8), a planetary gear (34) meshed with the central gear (8), an inner gear (22) meshed with the planetary gear (34), and a carrier (30) journalizing the planetary gear (34). The inner gear (22) is disposed with a clearance to the stationary member 11 in a radial direction, and the inner gear (22) is opposed and disposed to the stationary member (11) in the axial direction by means of friction members (26, 28), which are urged against the inner gear (22). The inner gear 22 is retained at the side of the stationary member (11) in a slip rotation condition by the friction force between the friction members (26, 28) and the inner gear (22).

Abstract: An adequate rotation angle is ensured and any member is not damaged due to fluid resistance even with use of highly viscous fluid. A rotating shaft (2) is provided inside a casing (1) having first divider walls (5) provided on its inner periphery and in direct or indirect contact with the rotating shaft. Second divider walls (4) are provided on an outer periphery of the rotating shaft and in either direct or indirect contact with the casing. A flow passage (4a) is provided in the second divider wall for fluid communication between the pressure chambers. A check valve mechanism has curving portions (6a) moving on and along the periphery of the rotating shaft and valving portions (6b) each joining to the curving portion. The curving portion is supported between the rotating shaft and the first divider wall. The flow passage is opened/closed depending upon a direction of fluid flow.

Abstract: Linear dampers are capable of offering an expected damping force without the use of oil or gas. A casing body 10 has a cylindrical portion 14 and a damping groove 15 continuing with each other and axially extending. The side face of the damping groove 15 are tapering faces 17 between which the space gradually opens up toward the opening of the damping groove 15. A slider 18 constituted of a first moving member 19 and a second moving member 20 is inserted into the casing 10. When the slider 18 is inserted into the casing 10, an inclined face 28 of the second moving member 20 and an inclined face 24 of the first moving member 19 are in contact with each other and tapering faces 29 of the second moving member 20 and the tapering faces 17 are in contact with each other.

Abstract: An adequate rotation angle is ensured and any member is not damaged due to fluid resistance even with use of highly viscous fluid. A rotating shaft (2) is provided inside a casing (1) having first divider walls (5) provided on its inner periphery and in direct or indirect contact with the rotating shaft. Second divider walls (4) are provided on an outer periphery of the rotating shaft and in either direct or indirect contact with the casing. A flow passage (4a) is provided in the second divider wall for fluid communication between the pressure chambers. A check valve mechanism has curving portions (6a) moving on and along the periphery of the rotating shaft and valving portions (6b) each joining to the curving portion. The curving portion is supported between the rotating shaft and the first divider wall. The flow passage is opened/closed depending upon a direction of fluid flow.

Abstract: An adequate rotation angle is ensured and any member is not damaged due to fluid resistance even with use of highly viscous fluid. A rotating shaft (2) is provided inside a casing (1) having first divider walls (5) provided on its inner periphery and in direct or indirect contact with the rotating shaft. Second divider walls (4) are provided on an outer periphery of the rotating shaft and in either direct or indirect contact with the casing. A flow passage (4a) is provided in the second divider wall for fluid communication between the pressure chambers. A check valve mechanism has curving portions (6a) moving on and along the periphery of the rotating shaft and valving portions (6b) each joining to the curving portion. The curving portion is supported between the rotating shaft and the first divider wall. The flow passage is opened/closed depending upon a direction of fluid flow.

Abstract: The provision of a one-way clutch having a high strength and a small size and manufactured significantly readily. The one-way clutch includes a casing for supporting a rotating shaft, and a clutch mechanism provided inside the casing. The clutch mechanism allows the shaft inserted in the casing to slide in the casing when the shaft is rotated in one direction and locks the sliding of the shaft when the shaft is rotated in the other direction. The casing 22 include a laminate of a bottom plate member 23a and a plurality of intermediate plate members 23b. Each of the plate members has a press-fit recess 31 extending on one surface, and a press-fit height 32 which extends on the other surface and is press-fitted into a corresponding press-fit recess 31 of an adjacent plate member.

Abstract: Linear dampers are capable of offering an expected damping force without the use of oil or gas. A casing body 10 has a cylindrical portion 14 and a damping groove 15 continuing with each other and axially extending. The side face of the damping groove 15 are tapering faces 17 between which the space gradually opens up toward the opening of the damping groove 15. A slider 18 constituted of a first moving member 19 and a second moving member 20 is inserted into the casing 10. When the slider 18 is inserted into the casing 10, an inclined face 28 of the second moving member 20 and an inclined face 24 of the first moving member 19 are in contact with each other and tapering faces 29 of the second moving member 20 and the tapering faces 17 are in contact with each other.

Abstract: A damper including a shaft member 2 having wings 4a, 4b which are formed on the outer periphery of a shaft 3, a cylindrical casing 1 relative-rotatably incorporating the shaft member, and oil chambers A to D which are provided between the outer periphery of the shaft member and the inner periphery of the casing. Protrusions are provided on the inner periphery of the casing so as to be slidable on the outer periphery of the shaft. Communicating paths 5a, 5b pass through the shaft to enable communication between a pair of adjacent oil chambers. At least one of openings of the communicating path is closed by the protrusion 8a, 8b of the casing within a relative-rotating range of the shaft member 2.

Abstract: The provision of a rotational speed controller which is capable of increasing braking torque without a corresponding increase in size, and easily outputting braking torque assumed in the design, and minimizing variations in the braking torque. A casing 6 incorporates a shaft 7 inserted therein, a first rotor 8 rotated together with the shaft 7 in one piece, and a second rotor 10 rotated through the medium of the first rotor 8 and a planet gear 9. A first rotation mechanism for rotating the first rotor 8 is the shaft 7. A second rotation mechanism for rotating the second rotor 10 is a planetary gear mechanism operated in association with the rotation of the first rotor 8.

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: A rotary damper has a casing having a fluid chamber filled with a fluid, a rotatable member disposed in the fluid chamber for rotation relative to the casing, a vane disposed on an outer circumferential surface of the rotatable member and extending in an axial direction thereof, the vane projecting toward an inner circumferential surface of the fluid chamber and having a first side and a second side opposite to the first side, a fluid passage for allowing the fluid to flow between the first side and the second side at or near a tip end of the vane, and a valve body mounted on the vane for selectively opening and closing the fluid passage. The valve body comprises a valve disposed in a position for closing the fluid passage and a spring for normally urging the valve in a direction to close the fluid passage. The valve and the spring are integrally formed.

Abstract: The provision of a rotational speed controller which is capable of increasing braking torque without a corresponding increase in size, and easily outputting braking torque assumed in the design, and minimizing variations in the braking torque. A casing 6 incorporates a shaft 7 inserted therein, a first rotor 8 rotated together with the shaft 7 in one piece, and a second rotor 10 rotated through the medium of the first rotor 8 and a planet gear 9. A first rotation mechanism for rotating the first rotor 8 is the shaft 7. A second rotation mechanism for rotating the second rotor 10 is a planetary gear mechanism operated in association with the rotation of the first rotor 8.

Abstract: A rotary damper has a casing having a fluid chamber filled with a fluid, a rotatable member disposed in the fluid chamber for rotation relative to the casing, a vane disposed on an outer circumferential surface of the rotatable member and extending in an axial direction thereof, the vane projecting toward an inner circumferential surface of the fluid chamber and having a first side and a second side opposite to the first side, a fluid passage for allowing the fluid to flow between the first side and the second side at or near a tip end of the vane, and a valve body mounted on the vane for selectively opening and closing the fluid passage. The valve body comprises a valve disposed in a position for closing the fluid passage and a spring for normally urging the valve in a direction to close the fluid passage. The valve and the spring are integrally formed.

Abstract: The present invention provides a damping mechanism capable of varying the moving speed of an openable door or the like in stages as necessary. Such damping mechanism includes a damping body (1) installed with a damper mechanism and allowing a rotative shaft (3) to protrude therefrom; a plurality of pinions (4, 5) provided on the rotative shaft (3) and each having a different diameter from one another; and a rack member (2) including a plurality of racks (7, 8) respectively engaging with the pinions (4, 5).

Abstract: The provision of a one-way clutch having a high strength and a small size and manufactured significantly readily. The one-way clutch includes a casing for supporting a rotating shaft, and a clutch mechanism provided inside the casing. The clutch mechanism allows the shaft inserted in the casing to slide in the casing when the shaft is rotated in one direction and locks the sliding of the shaft when the shaft is rotated in the other direction. The casing 22 include a laminate of a bottom plate member 23a and a plurality of intermediate plate members 23b. Each of the plate members has a press-fit recess 31 extending on one surface, and a press-fit height 32 which extends on the other surface and is press-fitted into a corresponding press-fit recess 31 of an adjacent plate member.

Abstract: An object of the present invention is to provide a damper which has a simple structure and allowing the setting of arbitrary torque with smooth reproducibility. The damper includes a shaft member 2 having wings 4a, 4b which are formed on the outer periphery of a shaft 3, a cylindrical casing 1 relative-rotatably incorporating the shaft member, and oil chambers A to D which are provided between the outer periphery of the shaft member and the inner periphery of the casing. Protrusions are provided on the inner periphery of the casing so as to be slidable on the outer periphery of the shaft. Communicating paths 5a, 5b are passed through the shaft to make the communication between a pair of the adjacent oil chambers out of all the oil chambers which are individually surrounded by the wings and the protrusions. At least one of openings of the communicating path is closed by the protrusion 8a, 8b of the casing within a relative-rotating range of the shaft member 2.

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.

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).