摘要:
A slide rail device which includes a lower rail, an upper rail which is freely slidably engaged with the lower rail, and balls which are installed between the lower and upper rails. The lower rail includes a lower-rail bottom wall, a pair of lower-rail side walls, a pair of lower-rail upper walls, a pair of lower-rail lower-ball contact R-portions, and a pair of lower-rail upper-ball contact R-portions. The upper rail includes an upper-rail top wall, a pair of upper-rail side walls, and a pair of upper-rail ball-bearing walls. Each upper-rail ball-bearing wall includes an upper-rail lower-ball contact portion and an upper-rail upper-ball contact portion. A radius of curvature of the lower-rail lower-ball contact R-portion of the lower rail is greater than that of the lower ball, and a radius of curvature of the lower-rail upper-ball contact R-portion of the lower rail is greater than that of the upper ball.
摘要:
Provided is a seat where pumping operation of a lever of the seat not only rotates an output member by inching but also, when a load in the operation direction of the lever is applied to the output side member, rotates it at one stroke in that direction. A seat adjustment device of the seat has a clutch unit (X) provided between the lever and a rotation member of a movement mechanism. The clutch unit (X) has a lever side clutch section (11) which is provided on the input side and controls, through lever operation, transmission/interruption of rotational torque to the output side, a brake side clutch section (12) provided on the output side, which transmits input torque from the lever side clutch section (11) to the output side, and interrupts reverse input torque from the output side, and a rotation control clutch section (13) which is disposed adjacent to the brake side clutch section (12), allows a pinion shaft (28) of the brake side clutch section (12) to rotate by inching through pumping operation where the lever of the lever side clutch section (12) is rotated in one direction, and makes the pinion shaft (28) rotatable through a single operation in which the lever is rotated in the opposite direction.
摘要:
A long-member bending method and apparatus, and a door frame bending method are achieved, each of which makes it possible to perform a favorable bending process on long members which vary widely in tensile strength, especially long members which are low in tensile strength. A method of bending a long member, according to the present invention includes a step of applying a tensile force, which increases from an initial tensile force, to the long member to draw out the long member in a lengthwise direction thereof; a step of measuring a displacement of the long member after commencement of the application of the initial tensile force; and a step of bending the long member by applying a correction tensile force and a bending pressure for bending the long member into a curved shape in the lengthwise direction simultaneously to the long member upon the displacement exceeding a predetermined tensile fracture threshold value within a predetermined period of time or after a lapse of the predetermined period of time without the displacement exceeding the tensile fracture threshold value, wherein the correction tensile force is smaller than the tensile force at the time the displacement exceeds the tensile fracture threshold value or the tensile force at the lapse of the predetermined period of time.
摘要:
To secure abrasion resistances of a brake-side outer race and a stopper contact portion, and to reduce cost, there is provided a clutch unit including: a lever-side clutch portion for controlling transmission/interruption of rotational torque to an output side with lever operation; a brake-side clutch portion for transmitting torque input from the lever-side clutch portion to the output side and for interrupting torque reverse-input from the output side, in which: the lever-side clutch portion includes an input-side member to which torque is input with the lever operation; claw portions (14g) extending in an axial direction are provided on an outer periphery of the lever-side outer race (14) of the input-side member; the brake-side clutch portion includes a stationary-side member restricted in rotation, the stationary-side member being constituted by a brake-side outer race (23) arranged while being separated from the lever-side outer race (14) in the axial direction and a cover (24) attached to the brake-side outer race (23) on a lever-side outer race (14) side thereof; claw portions (14g) of the lever-side outer race (14) are brought into slidable contact with an end surface of the brake-side outer race (23) with rotation of the lever-side outer race (14), the rotation being effected with lever operation; and the claw portions (14g) of the lever-side outer race (14) are allowed to come into contact, in a rotational direction, with lock portions (24e, 24f) provided on an outer periphery of the cover (24).
摘要:
Operability of portions to be adjusted is improved. A vehicle seat (10) has a seat lifter (22) that is provided at a seat body for seating and is adjusted by operation force transmitted from a first operation system, a reclining mechanism (20) that is provided at the seat body and is adjusted by operation force transmitted from a second operation system, and an operation lever (30) that apples operation force for independently adjusting the seat lifter (22) and the reclining mechanism (20). The operation lever (30) is turned in the direction of arrow D or arrow E along the vertical direction of the seat to apply operation force to the seat lifter (22) and is turned in the direction of arrow F along the lateral direction of the seat to apply operation force to the reclining mechanism (20).
摘要:
A joint structure and a wind regulator having high separation strength, A lift arm (5) is provided with: a tapered through-hole (35) which has formed thereon a first inner wall section (33) work-hardened by plastic deformation; and a raised section (45) which has an inner wall surface (41) interconnected with an inner wall surface (31) of the tapered through-hole (35) and which has formed thereon a second inner wall section (43) work-hardened by plastic deformation. A protrusion (1) is formed on a driven gear (3). The protrusion (1) is fitted from the tapered through-hole (35) up to the raised section (45), has an outer wall section (53) work-hardened by plastic deformation, and has an outer wall surface (35) in close contact with the inner wall surface (31) of the tapered through-hole (35) and with at least a part of the inner wall surface (41) of the raised section (45),
摘要:
The present invention provides a slide rail device for a vehicle in which a lock release lever can be rotatably supported by an upper rail with a simple structure and with a small number of components even though a locking mechanism and the lock release lever are installed in an internal space of the upper rail. The slide rail device includes a lock release lever 47 which switches a locking mechanism between a slide restriction state and a slide restriction release state by rotating in the vertical direction and includes a rail-incorporated portion 47a positioned between an upper rail 35 and a bottom wall 22 of a lower rail 21, a rotational contact portion 50 which is formed on an upper surface of the rail-incorporated portion and contacts a ceiling plane of said upper rail, and a biaser 63 which is installed in the rail-incorporated portion and the upper rail and biases the rotational contact portion toward the roof surface.