摘要:
A stepped lowering device includes a lifting/lowering link having a pivot on a base and on an ascending/descending body; a toothed link pivoted on the base or the ascending/descending body, includes a link ratchet and swings in association with the lifting/lowering link; an input member, supported by the ascending/descending body or the base; a first lowering prevention latch mechanism engaged with the link ratchet to prevent the toothed link swinging downward when the input member is in a neutral position and allows the toothed link to swing downward when the input member is swung in a lowering direction; and a second lowering prevention latch mechanism which allows the toothed link to swing downward by one tooth of the link ratchet and which is engaged with the link ratchet to prevent the toothed link further swinging downward.
摘要:
A seat track mechanism for a vehicle, includes a lower rail mounted to a vehicle floor; an upper rail supported by the lower rail and slidable relative to the lower rail; and spherical rotators held between the lower and upper rails, the spherical rotators rolling via a sliding movement of the upper rail. One of the upper rail and the lower rail includes at least one horizontal flat portion parallel to a widthwise direction of the seat track mechanism and parallel to a direction of the sliding movement of the upper rail, and the other of the upper rail and the lower rail includes at least one rotator supporting recess having a circularly arcuate shape in cross section which is uniform in a lengthwise direction of the seat track mechanism, the spherical rotators being held between the rotator supporting recess and the horizontal flat portion.
摘要:
A seat track mechanism for a vehicle, includes a lower rail mounted to a vehicle floor; an upper rail supported by the lower rail and slidable relative to the lower rail; and spherical rotators held between the lower and upper rails, the spherical rotators rolling via a sliding movement of the upper rail. One of the upper rail and the lower rail includes at least one horizontal flat portion parallel to a widthwise direction of the seat track mechanism and parallel to a direction of the sliding movement of the upper rail, and the other of the upper rail and the lower rail includes at least one rotator supporting recess having a circularly arcuate shape in cross section which is uniform in a lengthwise direction of the seat track mechanism, the spherical rotators being held between the rotator supporting recess and the horizontal flat portion.
摘要:
A seat track mechanism for a vehicle, includes a lower rail mounted to a vehicle floor; an upper rail supported by the lower rail and slidable relative to the lower rail; and spherical rotators held between the lower and upper rails, the spherical rotators rolling via a sliding movement of the upper rail. One of the upper rail and the lower rail includes at least one horizontal flat portion parallel to a widthwise direction of the seat track mechanism and parallel to a direction of the sliding movement of the upper rail, and the other of the upper rail and the lower rail includes at least one rotator supporting recess having a circularly arcuate shape in cross section which is uniform in a lengthwise direction of the seat track mechanism, the spherical rotators being held between the rotator supporting recess and the horizontal flat portion.
摘要:
A reclining device capable of controlling angles of a seat back of a vehicle is provided. A ratchet plate is superposed on a base plate such that the ratchet plate is rotatable relative to the base plate. An operation shaft is rotatably disposed on the rotation center axis of the ratchet plate. A circular concavity is formed on a surface of the ratchet plate opposed to the base plate around the operation shaft. Inside teeth are provided on an inner circumferential wall surface of the concavity. Pawls having outside teeth on their front end surfaces are disposed on the concavity, and the outside teeth of the pawls engage with and disengaging from the inside teeth in the radial direction of a teeth end circle. Guide projections provided on the base plate slidingly guide the pawls in the radial direction. A cam disposed in a space on the side of rear end surfaces of the pawls is rotatable with the operation shaft. A release plate disposed between the ratchet plate and the components of the pawls and the cam such that the release plate is rotatable with the cam. Projections engaging with cam grooves are provided at the rotation end of the release plate to release engagement between the inside teeth and the outside teeth.
摘要:
A storage type seat for an automobile is provided with a seat cushion having at least one leg portion, a lock mechanism operable to engage and disengage the at least one leg portion with and from a vehicle body floor, a seat back that can be folded down to a seat face of the seat cushion, a link member that links the seat with the vehicle body floor, the vehicle body floor having a recessed storage portion formed therein to the rear of the seat, the link member allowing the seat cushion and the seat back that are in a folded state to be stored in the recessed storage portion when the seat is not used, and allows the seat cushion and the seat back in the folded state to be returned to an original position for use so that the leg portion is brought into engagement with the vehicle body floor, a release permission mechanism which permits the leg portion of the seat cushion to be released from the vehicle body floor only when the seat cushion and the seat back are in the folded state, and a standing permission mechanism which permits the seat back of the seat in the folded state to be raised to a standing position only when the leg portion is locked on the vehicle body floor by the lock mechanism.
摘要:
A reclining device capable of controlling angles of a seat back of a vehicle is provided. A ratchet plate is superposed on a base plate such that the ratchet plate is rotatable relative to the base plate. An operation shaft is rotatably disposed on the rotation center axis of the ratchet plate. A circular concave is formed on a surface of the ratchet plate opposed to the base plate around the operation shaft. Inside teeth are provided on an inner circumferential wall surface of the concave. Poles having outside teeth on their front end surfaces are disposed on the concave, and the outside teeth of the poles engage with and disengaging from the inside teeth in the radial direction of a teeth end circle. Guide projections provided on the base plate slidingly guide the poles in the radial direction. A cam disposed in a space on the side of rear end surfaces of the poles is rotatable with the operation shaft. A release plate disposed between the ratchet plate and the components of the poles and the cam such that the release plate is rotatable with the cam. Projections engaging with cam grooves are provided at the rotation end of the release plate to release engagement between the inside teeth and the outside teeth.
摘要:
A seat track mechanism for a vehicle, includes a lower rail mounted to a vehicle floor; an upper rail supported by the lower rail and slidable relative to the lower rail; and spherical rotators held between the lower and upper rails, the spherical rotators rolling via a sliding movement of the upper rail. One of the upper rail and the lower rail includes at least one horizontal flat portion parallel to a widthwise direction of the seat track mechanism and parallel to a direction of the sliding movement of the upper rail, and the other of the upper rail and the lower rail includes at least one rotator supporting recess having a circularly arcuate shape in cross section which is uniform in a lengthwise direction of the seat track mechanism, the spherical rotators being held between the rotator supporting recess and the horizontal flat portion.
摘要:
A walk-in seat is provided, which has decreased number of components, and has a vacant space formed below a seat cushion so that the walk-in seat may be used even for a different-level seat track. The walk-in seat has a first control lever 171 for unlocking a first locking mechanism 100; a second control lever 181 for unlocking a second locking mechanism 100′; a memory mechanism 300 holding the first control lever 171 such that when a first upper rail 5 is located between a middle position and a foremost position with a seatback being tilted most forward, the first locking mechanism 100 is unlocked; first cable means FC operating such that when the seatback of a seat is tilted to a most forward position, the means FC drives the first control lever 171 to unlock the first locking mechanism 100; and second cable means SC transmitting operation of the first control lever 171 to the second control lever 181.
摘要:
Disclosed is a method of exposure control for use in a step-and-repeat type exposure apparatus that includes a radiation source for emitting a radiation beam and a workpiece holding chuck having an attracting surface. The method includes placing a first workpiece on the attracting surface of the holding chuck so that the workpiece is attracted to and held by the holding chuck, moving the holding chuck stepwise so that different portions of the workpiece are sequentially brought to an exposure station and exposing that portion of the first workpiece placed at the exposure position, detecting the temperature of the attracting surface of the holding chuck each time a portion of the first workpiece is exposed, memorizing data related to the detected temperature, removing the first workpiece from the holding chuck and placing a second workpiece on the attracting surface of the holding chuck, moving the holding chuck, bearing the second workpiece, stepwise for exposure of different portions of the second workpiece and adjusting the temperature of the attracting surface of the holding chuck each time a portion of the second workpiece is brought to the exposure position, in accordance with the memorized data.