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Adjusting mechanism for adjusting restoring force that acts on backrest of chair, and office chair with such adjusting mechanism

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

Active Publication Date: 2012-12-26
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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  • Adjusting mechanism for adjusting restoring force that acts on backrest of chair, and office chair with such adjusting mechanism
  • Adjusting mechanism for adjusting restoring force that acts on backrest of chair, and office chair with such adjusting mechanism
  • Adjusting mechanism for adjusting restoring force that acts on backrest of chair, and office chair with such adjusting mechanism

Examples

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 adjusting mechanism (6) is used to adjust a restoring force that acts on a backrest of a chair and has the following features: a spring element (24) for creating the restoring force, a support (16), and a backrest support (12) that is pivotably mounted about a support axis (A1) on the support (16). An adjusting element (20), which is designed in the manner of a pair of scissors, comprising a first scissor arm (20A) and a second scissor arm (20B) is provided, and the scissor arms (20A, 20B) are rotatably connected to each other about a scissor axis (A3). The first scissor arm (20A) is pivotably mounted on the backrest support (12) about an adjusting axis (A2); a spring force produced by the spring element (24) acts on the second scissor arm (20B); a first actuating lever length (W1) is defined between the support axis (A1) and the scissor axis (A3), said lever length being changeable using an adjusting element (26) for adjusting the restoring force by pivoting the adjusting element (20) about the adjusting axis (A2).

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