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Chair waist supporting device

A lumbar support and seat technology, which is applied to chairs, other seating furniture, stools, etc., can solve the problems of poor cushioning performance of rigid body supports, elastic body supports that cannot meet the waist convexity and precise adjustment of support positions, etc. , to achieve the effect of simple and compact structure, ensuring durability and reliability, and meeting the requirements of human comfort

Inactive Publication Date: 2013-04-03
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the present invention provides a seat lumbar support device, which solves the problem that the elastic body support in the existing support device cannot meet the precise adjustment of waist convexity and support position, and the rigid body support The problem of poor cushioning performance, while meeting people's requirements for comfort

Method used

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  • Chair waist supporting device
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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] like Figure 1 ~ Figure 4 As shown, a seat lumbar support device includes a front support plate 1 and a rear support plate 2, the front support plate 1 is arranged in front of the rear support plate 2, and a compression spring 3 and a convex spring are arranged between the front and rear support plates. Degree adjustment transmission mechanism 4; described crown adjustment transmission mechanism 4 is made up of left swing arm 5, right swing arm 6, elastic pressure plate 7, crown transmission screw rod 8, left pull rod 9, right pull rod 10; the elastic pressure The two ends of the plate 7 are respectively movably connected with the inner ends of the left and right tie rods; the outer ends of the left and right tie rods are movably connected with the crossbeams of the left and right swing arms respectively; connection, the upper...

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Abstract

The invention discloses a chair waist supporting device, and belongs to an accessory of a chair. According to the chair waist supporting device, the problem that an elastic body supporting piece of the conventional supporting device can not meet a requirement for precisely adjusting the convex degree and the supporting position of a waist part and the problem of low buffering performance of a rigid body supporting piece are solved, and requirements of people on comfortableness can be met. The chair waist supporting device comprises a front supporting plate and a rear supporting plate, wherein a compression spring and a convex degree adjustment transmission mechanism are arranged between the front supporting plate and the rear supporting plate; the convex degree adjustment transmission mechanism consists of a left swing arm, a right swing arm, an elastic pressure plate, a convex degree transmission screw rod, a left pull rod and a right pull rod; a convex degree adjustment speed changing box and a convex degree adjustment motor are arranged on the inner side of the rear supporting plate; a position adjustment transmission motor and a position adjustment speed changing box are arranged on the outer side of the rear supporting plate; a bracket is arranged in back of the rear supporting plate; and supporting arms at two ends of the bracket are arranged in through holes of a rear fixing hinge seat on the rear supporting plate.

Description

technical field [0001] The invention belongs to seat accessories, in particular to a seat lumbar support device. Background technique [0002] At present, the convexity adjustment of the seat lumbar support device is realized by airbags, tension is released by elastic steel cables, and rigid bodies move back and forth in the convex direction. Elastomeric supports such as airbags and elastic steel cables can make people feel more comfortable through the cushioning effect, but they have the disadvantage of low control accuracy compared with rigid body supports. However, the rigid body support lacks cushioning performance and cannot meet people's requirements for comfort. Contents of the invention [0003] Aiming at the problems existing in the prior art, the present invention provides a seat lumbar support device, which solves the problem that the elastic body support in the existing support device cannot meet the precise adjustment of waist convexity and support position, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47C7/44B60N2/66
Inventor 郭立新初殿欢李金丽
Owner NORTHEASTERN UNIV
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