公开(公告)号：US5169112A

公开(公告)日：1992-12-08

申请号：US750095

申请日：1991-08-26

申请人： Bradley S. Boyles ,  Kyle P. Donovan ,  Martin L. Maas

发明人： Bradley S. Boyles ,  Kyle P. Donovan ,  Martin L. Maas

IPC分类号： B60N2/50

CPC分类号： B60N2/501 ,  B60N2/502 ,  B60N2/505 ,  B60N2/507 ,  B60N2/508 ,  B60N2/525 ,  B60N2/544

摘要： A sprung seat suspension comprising a base frame; a seat carrier frame including height sensor assembly; linkage mounted on the base frame and operative to adjustably, vertically support the seat carrier frame with respect to the base frame and including an actuator which strokes the sensor assembly along a path during vertical movement of the seat carrier frame. A mover is mounted on the base frame and for adjustably vertically displacing the seat carrier frame from the base frame. An extension is connected to the height sensor assembly and the mover for selectively extending the mover. A retractor is connected to the height sensor assembly and the mover for selectively retracting the mover. The sensor assembly comprises a plurality of sensors positioned along the stroke path of the actuator which may be selectively independently activated to selectively activate the extension and retraction as the actuator strokes the sensor assembly.

公开(公告)号：US5364060A

公开(公告)日：1994-11-15

申请号：US33820

申请日：1993-03-19

申请人： Kyle P. Donovan ,  Bradley S. Boyles

发明人： Kyle P. Donovan ,  Bradley S. Boyles

IPC分类号： B60N2/54 ,  F16M13/00

CPC分类号： B60N2/502 ,  B60N2/505 ,  B60N2/508 ,  B60N2/544

摘要： A seat suspension system for supporting a seat support member on a base member includes support arms which cooperate with a spring suspension so as to suspend loads imposed on the seat. The support arms are connected to one of the seat support member and base member by a support mechanism. A cam element acts upon at least one of the seat support member and the base member and presents a cam surface offering a resistance to the motion of the accompanying cam follower which varies depending upon the height of the seat support member. The system preferably includes a height adjust mechanism for adjusting the unloaded distance between the seat support member and the base member. The height adjust mechanism may be either a ratchet mechanism which is operated by lifting the seat support member, or a spring assisted mechanism which is operable independently of the main suspension springs and which automatically biases an unloaded seat support member upwardly.

摘要翻译： 用于将座椅支撑构件支撑在基座构件上的座椅悬挂系统包括与弹簧悬架协作以便悬挂施加在座椅上的载荷的支撑臂。 支撑臂通过支撑机构连接到座椅支撑构件和基座构件中的一个。 凸轮元件作用在座椅支撑构件和基座构件中的至少一个上，并且具有凸轮表面，该凸轮表面抵抗相应的凸轮从动件的运动，该凸轮从动件根据座椅支撑构件的高度而变化。 该系统优选地包括用于调节座椅支撑构件和基座构件之间的无负载距离的高度调节机构。 高度调节机构可以是通过提升座椅支撑构件而操作的棘轮机构，也可以是弹簧辅助机构，其可独立于主悬架弹簧而操作，并且自动地将卸载的座椅支撑构件向上偏压。

公开(公告)号：US4639039A

公开(公告)日：1987-01-27

申请号：US774447

申请日：1985-09-10

申请人： Kyle P. Donovan

发明人： Kyle P. Donovan

IPC分类号： A47C7/40 ,  A47C7/46

CPC分类号： A47C7/402 ,  Y10T403/32451

摘要： An adjustment mechanism is provided for manually positioning and releasably locking a chair backrest in a desired vertical position relative to the chair seat. The mechanism comprises a guide rigidly secured to an upright backrest support frame of a chair and a channel rigidly secured to the backrest. The channel is mounted for vertical sliding movement on the guide. The channel comprises a slot having a plurality of vertically arranged notches along one vertical edge of the slot, an inclined surface sloping downwardly from the lowest notch at the bottom end of the slot, and a cam surface, partially straight and partially curved, extending upwardly along the other vertical edge of the slot from the lower end of the inclined surface to the highest notch. A latch bar is pivotally mounted on a pivot pin on the guide and has a latch pin extending into the slot. A two-legged torsion spring mounted on the guide between the guide and channel biases the latch bar in a latched position wherein the latch pin releasably engages a notch to maintain the backrest at a selected height. Manually raising the backrest slightly above its highest latched position (lowest notch) engages the inclined surface with the latch pin to pivot the latch bar overcenter to spring-biased unlatched position. Then, manually lowering the backrest to its lowest position (highest notch) while the latch pin engages the curved portion of the cam surface pivots the latch bar from overcenter unlatched position back to a latched position wherein the latch pin engages the highest notch to maintain the backrest in its lowest position. From there, the backrest can be lifted one notch at a time to raised positions.

摘要翻译： 提供了一种调节机构，用于将椅子靠背相对于椅子座手动定位和可释放地锁定在期望的垂直位置。 该机构包括刚性地固定到椅子的立式靠背支撑框架和刚性地固定到靠背的通道的导轨。 通道安装在导轨上用于垂直滑动。 通道包括沿着槽的一个垂直边缘具有多个垂直布置的凹口的槽，从槽的底端处的最下陷口向下倾斜的倾斜表面，以及向上延伸的部分直的并部分弯曲的凸轮表面 沿着从倾斜表面的下端到最高切口的槽的另一垂直边缘。 闩锁杆枢转地安装在引导件上的枢轴销上，并且具有延伸到槽中的闩锁销。 安装在引导件和引导件之间的双腿扭力弹簧将闩锁杆偏压在闩锁位置，其中闩锁销可释放地接合凹口以将靠背保持在选定的高度。 手动提升靠背略高于其最高锁定位置（最低切口），将倾斜表面与闩锁销接合，以将闩锁杆中心枢转到弹簧偏置解锁位置。 然后，当闩锁销接合凸轮表面的弯曲部分时，将靠背手动地降低到其最低位置（最高切口），将闩锁从越过中心的解锁位置枢转回到闩锁位置，其中闩锁销接合最高切口以保持 靠背处于最低位置。 从那里，靠背可以一次提升一个档位，以提高位置。