摘要:
A vehicle seat suspension comprises a scissors assembly connecting lower and upper housings and permitting vertical movement of the upper housing; reciprocating means; an elongated guide member; and guide engaging rollers. Laterally extending front and rear cross members engage upper ends of the scissor links. The reciprocating means allows the upper housing to move fore and aft, and includes horizontally disposed rollers supported by the scissors assembly and received within side tracks forming part of the upper housing. The guide member is mounted to the upper housing and oriented parallel to the fore and aft travel path. Two vertically disposed guide engaging rollers are mounted to the scissors assembly cross members. The guide engaging rollers cooperate with the guide member at spaced locations to stabilize the upper housing in a direction generally perpendicular to its fore and aft travel path.
摘要:
A force isolating apparatus for use in a vehicle seat suspension, where the suspension has a base frame and an upper frame mounted to move horizontally relative to the base frame. The force isolating apparatus comprises: a first pair of in line springs comprising a first coiled wire compression spring and a first elastomeric compression spring; a second pair of in line springs comprising a second coiled wire compression spring and a second elastomeric compression spring; and an actuator disposed between said first and second pairs of springs, the actuator being horizontally movable to actuate one of the spring pairs when the base frame and upper frame move relative to one another.A force isolating apparatus may be used with a cooperating shock absorber which is also preferably mounted in line to the spring pairs.
摘要:
An active suspension system for limiting movement of a vehicle seat in two or more directions, up to and including six directions, in response to vehicle movement. The active suspension system includes seat actuating members and sensors for monitoring movement of the vehicle and/or the vehicle seat, and the seat actuating members. The seat actuating members also function to provide mechanical support for the vehicle seat. A control system accepts feedback from the sensors and responsively directs movement of the seat actuating members to limit seat movement in response to vehicle movement. A method for using an active suspension system to limit seat movement in response to vehicle movement also forms part of the present invention.
摘要:
A mechanical seat suspension between upper and lower supports comprises a scissors arms linkage and a support pivot assembly allowing height adjustment to multiple positions. The pivot assembly carries most of the seat load and comprises a pair of lever arms, a pair of bell cranks, a height adjustment latch including multiple height adjustment detents, a pair of latch supports and a pair of tension springs to provide height-adjustable suspension. The seat suspension also preferably includes a damper such as a shock absorber. The latch includes a plurality of detents which alternatively work to adjust the height of the seat. A moveable pin is disposed within the latch support to engage a detent of the latch to establish the adjustable height of the seat. The moveable pin is moved into a disengagement position by lifting the seat to its maximum raised position whereby an abutment surface on the latch forces the moveable pin rearward. The upper support is then free to travel to its lowest position where a second abutment surface on the latch forces the moveable pin into its engagement position. In this position, the seat can be placed into multiple height-adjusted positions by raising the upper support to its preferred position. The invention allows for a multiple-position height adjustment and independent weight adjustment while allowing a very low profile and a linear suspension curve.
摘要:
A slide puck bearing system is provided comprising members which are intended to slide, move or rotate along or about one another. A slide puck bearing composed of a material such as acetal having a low coefficient of friction is adjustably fixed to a first member and has outer contours mating snugly with the surface contours of a second member. A set screw resides in the slide puck bearing to adjust the positioning of the bearing on the first member to adjust the tension against the second member. The slide puck can be adjusted or replaced throughout the life of the device. The system can be utilized with any devices wherein a member slides, rotates or moves relative to another member.
摘要:
An armrest assembly is self-adjusting as to height in response solely to the rotation of a connecting support lever to which an armrest is mounted. The adjustment mechanism includes a spring biased latch pawl engaging a ratchet wheel inside the support lever. The spring holds the pawl engaged to the ratchet when the support lever is rotated in one direction; the spring holds the ratchet wheel and pawl in disengagement when it is rotated in the other direction. The ratchet remains fixed relative to the movement of the armrest portion and the support lever. An adjustable cable running from the ratchet wheel through the support lever and into the armrest portion maintains the armrest portion in a horizontal position and provides adjustment above and below the horizontal.
摘要:
In accord with the present invention, a vehicle seat suspension apparatus is provided comprising: a seat suspension base; an isolator plate disposes above the base and adapted to support a vehicle seat; means for allowing reciprocating horizontal movement of the isolator plate relative to the base; an elongated guide mounted to one of either the base or the isolator and oriented along the travel path of the isolator; and a guide engaging member mounted to the other of the base or the isolator and engaging the guide to stabilize the isolator as it moves along its travel path.
摘要:
The present invention is directed to a seat and seat suspension assembly comprising a seat mounted to a seat supporting platform and suspension mechanism, the platform and suspension mechanism being rotationally mounted to a base by a pedestal so that the platform, suspension mechanism and seat may rotate through 360 degrees. The pedestal comprises two swivel housings, the first swivel housing being mounted in fixed position on the base and the second swivel housing being rotationally mounted to the first and supporting the suspension mechanism, platform and seat. A suspension spring and damper are associated with the suspension mechanism to enhance the ride characteristics of the seat, with the damper being positioned inside the pedestal and having one end connected to the first swivel housing and the other end connected to the suspension mechanism.
摘要:
A vehicle seat suspension assembly comprises a base, a support member, first and second latch members, and first and second actuators. The seat support member slides forward horizontally and pivots vertically upward. The first latch member has horizontally spaced locking elements and a movable first latch cooperating with one of the locking elements to lock the support member in one of a plurality of horizontal positions. The second latch member has vertically spaced locking elements and a movable second latch cooperating with one of these locking elements to lock the support member in one of a plurality of vertical or tilted positions. The first and second actuators are mounted adjacent the front end of the support member and operatively connected to the first and second latches, respectively.
摘要:
A vehicle seat suspension assembly affords both forward extension and vertical or tilt adjustment of the seat cushion independently of the backrest. The vehicle seat suspension assembly comprises a base, a support member slidably and pivotally mounted to the base, first and second latch devices, and first and second actuators. The seat support member has a front end that extends forward and away from the seat backrest as the support member slides horizontally and moves vertically upward as the support member pivots relative to the base. The first latch device is operatively associated with the base and seat support member and has horizontally spaced locking elements and a movable first latch cooperating with one of the locking elements o lock the support member in one of a plurality of horizontal positions. The second latch member is also operatively associated with the base and seat support member and has vertically spaced locking elements and a movable second latch cooperating with one of these locking elements to lock the support member in one of a plurality of vertical or tilted positions. The first actuator is mounted to the support member adjacent its front end and is operatively connected to the first latch for disengaging the first latch device, and the second actuator is also mounted to the support member adjacent the support member front end and is operatively connected to the second latch for disengaging the second latch device.