CN201175137Y

CN201175137Y - Improved chair back

Info

Publication number: CN201175137Y
Application number: CNU2008200035053U
Authority: CN
Inventors: 吴耀全
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-07
Filing date: 2008-03-07
Publication date: 2009-01-07
Anticipated expiration: 2018-03-07

Abstract

The utility model provides a structural improvement for a chair-back, which mainly comprises a chair-back support and a buffering fixed support, wherein, the chair-back support is a frame body which can be provided with a back board and is provided with an arc bend protruding forwards on a position where a backrest cushion is arranged, while the buffering fixed support is connected and fixed by a base and extends upwards to the rear end of the chair-back support, and the top end and the middle section of the buffering fixed support are respectively provided with pivot parts and support rods between the pivot parts are linked up by a flexible section so that after the buffering fixed support is pivoted at the top end of the chair-back support and at the rear end of the top end of the backrest cushion, the top end of the chair-back support can pull the flexible section to deform forwards when the backrest cushion receives a reclining force so that the top end of the chair-back support realizes the function of forward swing so as to hold the back of the user and cause the user to keep a good sitting posture.

Description

The back structure improvement

Technical field

The utility model is a kind of back structure improvement, main this chair back is made up of chair back rack and buffering fixed mount, its chair back rack is one can be for the framework of backboard is set, and corresponding in front user's waist is provided with back cushion, the buffering fixed mount then is to link via base to fix and extend upwardly to the chair back rack rear end, the top of short order buffering fixed mount and middle section respectively be provided with the articulated section and between hack lever on via stretch section was connected, therefore after order buffering fixed mount is articulated in the back-end location on the top of chair back rack and back cushion top, just can when being subjected to lying by power, impel by back cushion the top of chair back rack can be subjected to turn power and spur stretch section being out of shape forward, make the top of chair back rack produce the function of swing forward, change the effect that buttresses the user back that produces with angle, urge to make the user keep good sitting posture by whole chair back rack.

Background technology

Though seat has many structural shapes in response to different user demands, under the requirement of comfortableness, must all will be provided with the chair back, so whether the design of the chair back well can determine the comfort level of a seat.

In known back structure design; formed (the material pattern of backboard can be built-in foam or is dictyosome) with chair back rack configuration backboard; improve by the damping characteristics of material the user lie by the time comfortableness; though it is to be present modal chair back design; but the usefulness that can't have ergonomics; when therefore even user's sitting posture is bad; also can't have any correcting effect; more sit more tired situation so through regular meeting the user is taken place, Here it is because the chair back of known seat lacks the problem that ergonomic designs is derived.

The utility model is point in view of the above problems, feels that deeply the chair back of seat was exactly to have the design of holding up by the human body back function originally, therefore must produce the correcting effect when user's sitting posture is bad, could make the function of the chair back obtain to improve performance thus.

The utility model content

The purpose of this utility model is to provide a kind of back structure improvement, to solve the defective that known technology exists.

For achieving the above object, the back structure improvement that the utility model provides, mainly this chair back is made up of chair back rack and buffering fixed mount, wherein:

Chair back rack is one can be for the framework of backboard is set, and corresponding in front user's waist is provided with back cushion, respectively has pivot connecting plate on the top of framework and the back-end location on back cushion top;

The buffering fixed mount links fixing and extends upwardly to the hack lever of chair back rack rear end via base, in the top and the pivot connecting plate of the corresponding chair back rack in middle section respectively be provided with can be for the articulated section that articulates, and be to be connected on the hack lever between the articulated section via stretch section;

By above-mentioned member, can when suffering oppression power, impel by back cushion the top pulling stretch section of chair back rack to swing forward to pre-buckling, and above lying the time by chair back rack, the bottom that can make chair back rack by the characteristic of stretch section deflection is beat forward, urge to make back cushion support the user forward, reach short and make the user keep good sitting posture.

Described back structure improvement, wherein back cushion is the elastic buffer material of built-in foam.

In other words, back structure improvement of the present utility model, main this chair back is made up of chair back rack and buffering fixed mount, wherein chair back rack is one can be for the framework of backboard is set, and the bent design of arc that the back cushion place has relief forward is being set, the buffering fixed mount then is to link via base to fix and extend upwardly to the chair back rack rear end, the top of short order buffering fixed mount and middle section respectively be provided with the articulated section and between hack lever on be to be connected via stretch section, short order buffering fixed mount is articulated in the back-end location on the top and the back cushion top of chair back rack, so after enforcement, can reach following usefulness:

Because the chair back of the present utility model is made up of chair back rack and buffering fixed mount, and chair back rack is with its top, the back-end location on back cushion top distinctly is hubbed on the buffering fixed mount, and back cushion is the waist location corresponding to the user, when so the incorrect sitting-pose that is bent arciform attitude when user's back is lain and is leaned against back cushion, the bottom that will make chair back rack is beat backward, and the top that makes chair back rack can be subjected to this turn power and spur stretch section and be out of shape forward, make the top of chair back rack produce the function of swing forward, allow the angle of chair back rack can easier applying user back, change the effect that buttresses the user back that produces with angle, urge to make the user keep good sitting posture by whole chair back rack.

Description of drawings

Fig. 1: be composition state diagram of the present utility model.

Fig. 2: be structure chart of the present utility model.

Fig. 3: be structure composition diagram of the present utility model.

Fig. 4: be enforcement state diagram of the present utility model.

Fig. 5: be another enforcement state diagram of the utility model.

Fig. 6: the composition diagram that is the utility model back cushion.

Primary clustering symbol description in the accompanying drawing:

1: chair back rack

10: the chair back

11: pivot connecting plate

12: pivot connecting plate

13: the continuous arc groove

2: the buffering fixed mount

21: the articulated section

22: the articulated section

23: stretch section

3: back cushion

31: the convex arc section

32: press strip

4: base

The specific embodiment

Be the function and benefit that can understand really that structure of the present utility model is formed and can be reached, following conjunction with figs. is enumerated embodiment, introduces explanation as back in detail:

Back structure of the present utility model improvement, mainly this chair back 10 by chair back rack 1 and buffering fixed mount 2 form (as shown in Figure 1 and Figure 2), wherein:

Chair back rack 1: be one can be for the framework of backboard is set, and corresponding in front user's waist is provided with back cushion 3, respectively has pivot connecting plate 11,12 on the top of framework and the back-end location on back cushion 3 tops.

Buffering fixed mount 2: be link fixing and extend upwardly to the hack lever of chair back rack 1 rear end via base 4, in the top and the middle section respectively be provided with articulated

section

21,22, and between hack lever on be connected via stretch section 23.

By above-mentioned member, make chair back rack 1 articulate (as shown in Figure 3) with its pivot connecting plate 11,12 articulated

sections

21,22 with buffering fixed mount 2 out of the ordinary, impel chair back rack 1 to form on the chair tool via buffering fixed mount 2, can finish composition of the present utility model.

So after enforcement, can by chair back rack 1 for user's back lie by and good supporting power and comfortableness be provided, and lie when leaning against back cushion 3 with the incorrect sitting-pose of the arciform attitude of song at user's back, because back cushion 3 is to concentrate the compressing power that is subjected to, and the position of back cushion 3 is the belows that are positioned at pivot connecting plate 12, and because 2 liang of articulated sections 21 of buffering fixed mount, the design that has stretch section 23 between 22, so this bottom beat backward of lying and to promote chair back rack 1 by power, and the top of chair back rack 1 can be subjected to this turn power and spur stretch section 23 deflection deformation forward (as shown in Figure 4), make the top of chair back rack 1 produce the function of swing forward, allow the angle of chair back rack 1 can easier applying user back, change the effect that buttresses the user back that produces with angle by whole chair back rack 1, urge to make the user keep good sitting posture once again, and above the user lies by chair back rack 1 above with its back the time, the bottom that can make chair back rack 1 by the characteristic of stretch section 23 deflections beat (as shown in Figure 5) forward then, urge to make back cushion 3 support the user forward, reach good comfort.

In addition again, be build difference in response to the different users, the both sides of chair back rack 1 are respectively to be provided with continuous arc groove 13 (as shown in Figure 6), back cushion 3 two ends then are that correspondence is provided with convex arc section 31, can cover the convex arc section 31 of back cushion 3 to be fixed in the continuous arc groove 13 via press strip 32 and form rail and connect, to make back cushion 3 chair back rack 1 function of carrying out the upper and lower position adjustment relatively.

Moreover back cushion 3 is the elastic buffer materials for built-in foam, in order to do the comfortableness of lying and leaning on the enhancement user.

Claims

1, a kind of back structure improvement, mainly this chair back is made up of chair back rack and buffering fixed mount, it is characterized in that:

Chair back rack is one for the framework of backboard is set, and corresponding in front user's waist is provided with back cushion, respectively has pivot connecting plate on the top of framework and the back-end location on back cushion top;

The buffering fixed mount links fixing and extends upwardly to the hack lever of chair back rack rear end via base, in the top and the pivot connecting plate of the corresponding chair back rack in middle section respectively be provided with can be for the articulated section that articulates, and on the hack lever between the articulated section, be connected via stretch section;

By above-mentioned member, back cushion impels chair back rack when suffering oppression power top pulling stretch section is to pre-buckling and swing forward, and above lying by chair back rack the time, and the bottom that stretch section makes chair back rack is beat forward, makes back cushion support the user forward.

2, back structure improvement as claimed in claim 1, it is characterized in that: wherein back cushion is the elastic buffer material of built-in foam.