Seat suspension

A technology for suspension devices and seats, which can be applied to seat suspension devices, vehicle seats, seats, etc., and can solve problems such as the ability to lean back or fold forward on the seat, limit the range of front/rear adjustment, etc. , to achieve the effect of reducing the speed and effective damping coefficient

Inactive Publication Date: 2005-08-10
MILSCO MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these structures have the additional disadvantage that the ability of the backrest to recline or fold forward over the seat is severely limited, which would be useful for vehicles in which the fuel storage tank is placed behind the seat , such as a lift truck
Additionally, the depth of the backrest may limit the effective fore / aft adjustment range of the seat suspension assembly

Method used

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  • Seat suspension
  • Seat suspension
  • Seat suspension

Examples

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Embodiment Construction

[0059] figure 1 and Figure 14 A seat 50 is shown which includes a frame 52 supporting a seat cushion 54 and a backrest 55 and a suspension base 68 . Although the seat 50 is shown as including a pair of armrests 56 and a seat belt mechanism 57 (as Figure 14 shown), but the seat 50 may take any form of seat used on a machine or vehicle. like figure 2 As shown, frame 52 includes a first handle 58 for controlling pivot mechanism 59 extending between and connected to seat frame 70 and back frame 72 and covered by a pair of cover plates 60 . The hitch base 68 includes a second handle 62, as in the prior art, for actuating a positioning mechanism (not shown) that moves the seat 50 forward or rearward relative to the vehicle on which the seat 50 is mounted. . Also, the hanger base 68 includes a third handle 60 for adjusting the weight adjustment mechanism 214 placed within the hanger base 68 . This will be explained in more detail here.

[0060] now refer to figure 2 , sho...

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Abstract

A suspension for a seat that varies the preload, spring rate and damping rate of the suspension in direct proportion to the suspended weight of an occupant of the seat to provide the same effective vibration isolation for any occupant. The suspension includes an actuating mechanism engaged with a first spring and a pivotal transfer link that is engaged with a second spring and a non-adjustable rate damper that are each fixedly attached to the seat opposite the transfer link. The transfer link is engaged with a weight adjustment mechanism which operates to adjust the position of a pivot pin for the transfer link with respect to the transfer link, such that the preload, spring rate and damping rate of the suspension are adjusted in proportion to the weight of the occupant of the seat to provide similar ride dynamics to any occupant of the seat.

Description

[0001] Cross-references to related applications [0002] This application claims priority to US Provisional Patent Application No. 60 / 366,965, filed March 22,2002. technical field [0003] The present invention relates to a suspension for a seat, and more particularly to a seat suspension which varies the preload, spring rate and damping ratio of the suspension in proportion to the weight of the seat occupant. Background technique [0004] In order for an operator to effectively control a machine, the seat that interfaces the operator with the machine must be able to comfortably support the operator for extended periods of time. In order to provide comfortable support for the operator, many different seat suspension designs have been developed in recent years. In most designs, the seat suspension is manufactured to suit the operator by using various suspension mechanisms or systems within the seat so that the amount of resistance or support provided and the vertical positio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60N2/54B61D33/00
CPCB60N2/506B60N2/502B60N2/509B60N2/504B60N2/503B60N2/508B60N2/505B60N2/544B60N2/50
Inventor 瑞安·D·詹斯卡凯文·E·希尔迪安·戴维斯-特罗勒布拉德利·S·博伊尔斯约翰·库查斯基
Owner MILSCO MFG
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