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Adjustment mechanism for adjusting restoring force acting on chair backrest, and office chair having such an adjustment mechanism

A technology for adjusting mechanisms and restoring forces, applied in chairs, home appliances, recliners, etc.

Active Publication Date: 2016-02-10
喜迪世公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is therefore that the recline adjustment setting of the backrest is corrected beyond the

Method used

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  • Adjustment mechanism for adjusting restoring force acting on chair backrest, and office chair having such an adjustment mechanism
  • Adjustment mechanism for adjusting restoring force acting on chair backrest, and office chair having such an adjustment mechanism
  • Adjustment mechanism for adjusting restoring force acting on chair backrest, and office chair having such an adjustment mechanism

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Experimental program
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Embodiment Construction

[0063] Figure 1A and Figure 1B The shown office swivel chair with synchronous mechanism comprises a back 2, a seat 4, a seat mechanism or adjustment mechanism 6 arranged under the seat 4, and in this seat mechanism or adjustment mechanism is combined the action on the back 2. Multiple individual components for setting the resilience. Furthermore, a standpipe 8 can be seen, which is connected to a foot part (not shown here). The riser is usually configured as a telescoping tube via which height setting can be performed. The movement of the seat 4 and the movement of the back 2 are coupled to each other by a synchronization mechanism. For precision, on the back 2 from Figure 1A Enter the location shown Figure 1B With the adjustment in the position shown, the seat 4 is transformed from the substantially horizontal orientation according to FIG. 1 into an obliquely reclining position.

[0064] The synchronization mechanism comprises a back support 12 via which the back 2 is...

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PUM

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Abstract

The adjustment mechanism (6) is used to adjust the restoring force acting on the backrest of the chair and has the following characteristics: the spring element (24) for generating the restoring force, the support (16), and is pivotable around the support axis (A1) The backrest support (12) is firmly installed on the support (16). Adjustment element (20), which is designed in the form of a scissors, comprises a first scissors arm (20A) and provides a second scissors arm (20B), the scissors arms (20A, 20B) around the scissors axis (A3 ) are rotatably connected to each other. The first scissor arm (20A) is pivotally mounted on the backrest support (12) around the adjustment axis (A2), and the spring force generated by the spring element (24) acts on the second scissor arm (20B); A moving lever length (W1) is defined between the support shaft (A1) and the scissors shaft (A3), said lever length being changeable using the adjustment element (26) to adjust the adjustment element (20) around The shaft (A2) pivots to adjust the restoring force.

Description

technical field [0001] The invention relates to an adjustment mechanism for setting the restoring force acting on the backrest of a chair and having the features stated in the preamble of claim 1 . Furthermore, the invention relates to an office chair with an adjustment mechanism of this type. Background technique [0002] The office chair is preferably equipped with a mechanism known as a synchronization mechanism. In this type of seat, the inclination of the backrest can usually be adjusted against a restoring force. What is provided in the case of a comfortable seat is that this restoring force can be set in order to adapt it to the requirements of users of different weights. [0003] Here, different mechanisms and methods are possible for various setting purposes. Thus, for example, the prestress of the spring exerting the restoring force can be set manually via an actuating element, eg a handwheel. However, in order to make it possible to adjust the spring prestress...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A47C1/032
CPCA47C1/03255A47C1/03266A47C1/03272A47C7/46A47C1/024
Inventor A·桑德尔C·施密特
Owner 喜迪世公司