CN2728310Y - Multi-section type chair back structure - Google Patents

Abstract

The utility model relates to a multi-section type chair back structure, in particular to a sheathed elastic rod designing in which a chair rack is used for headrest after connected with a chair back in series and located. A waist board is pivoted at the lower part of the chair back board which makes the lower part of the waist board pivoted and supported by an elastic rod connected with the rear of the chair back board. A movable pivoting designing is adopted between the headrest and the elastic rod in which the elastic supporting changed by the corresponding angle is provided by the headrest and the waist board when the user lies.

Description

The multisection type back structure

Technical field

The utility model is a kind of multisection type back structure, overlapped solid design for the elasticity bridge of resting the head on again after locating for the chair back plate serial connection with a chair frame, wherein the chair back plate below is the back that is pivoted in succession, the support that elastic rod articulates that makes the back lower end linked by the chair back plate rear, and the activity of also adopting pivot joint between headrest and elasticity bridge designs, so the support effect that depends on power to change angle and provide elastic force to cushion in response to lying all is provided for headrest and back, so that can make the user who leans on that lies obtain better comfort.

Background technology

Safety, convenient and comfortable requirement are progressive and constant along with science and technology, and especially the most normal contact, the office chair tool that uses are all the more so, also have the seat that best comfort can be provided only and could allow user's office efficiency get a promotion.For this reason, in the design of office chair tool now, the foam structure of being installed in most chair back emphatically, except considering the soft of foam, outside the hardness (density), further design the curve of various correspondences at ergonomics, so that can allow the back obtain preferable support effect when making the user lie leaning against on the chair back, and then reach the purpose that promotes comfortableness, because each user's height, build is also inequality, so in the face of these standardized office chair tools the time, also can't obtain best effect certainly, even the user leans against on the chair back in order to lie fully, must painstakingly come out boldly in response to the radian of the chair back or bend over toward contact, encourage the formation of incorrect sitting-pose more, allow the office chair tool of ergonomic designs be a mere formality.

The present utility model people is in view of inscribing between above-mentioned a little, the chair back of the fixed design of dark feel can't meet all users' demand at all after making the office chair tool, more because its standardized design, and the user who only allows the minority build reach standard can be suitable for, the utility model people is engaged in the professional experiences of creation design for many years based on it for this reason, actively research and development improvement, under the discretion of each side's condition is considered, finally start out the composition of this structure, can solve the disappearance of prior art fully.

The utility model content

The purpose of this utility model provides a kind of ergonomics that meets, and overcomes the multisection type back structure of prior art defective.

A kind of multisection type back structure is made up of chair frame, chair back plate, back and headrest, wherein:

Chair frame: be to extend upward the support body that is connected with chair back plate, have two and hold up upright hack lever to have plural Ka Gou on the pole face for base;

Chair back plate: be to be installed with the framework that the corresponding human body back of wire side leans on for lying, the cross bar middle section that links in its rear end is to connect an elastic rod via the two corresponding ccontaining chimeric lockings of enclosing cover, and is provided with the fixing pipe to be serially connected with the Ka Gouchu of hack lever at the cross bar two ends;

Back: be to be articulated in the chair back plate below and to be installed with the framework that the corresponding human body waist of wire side leans on for lying;

Headrest: be the framework of establishing the corresponding human body head of wire side, set up two sleeve pipes separately admittedly with corresponding hack lever cover and link the elasticity bridge with articulated part in its rear end;

By by above-mentioned member, make the elastic rod of chair back plate be articulated in the back below via an articulated part, so that back provides the buffering elasticity of forward and backward deflection angle relatively, and rest the head on also swing of relative resilient bridge and buffering will be provided the user complete support effect by forming of its multisection type.

The utility model is a kind of multisection type back structure, overlapped solid design for the elasticity bridge of resting the head on again after locating for the chair back plate serial connection with a chair frame, wherein the chair back plate below is the back that is pivoted in succession, the support that elastic rod articulates that makes the back lower end linked by the chair back plate rear, and also adopt the activity design of pivot joint between headrest and elasticity bridge, so after enforcement, can provide following usefulness:

One, because chair back plate of the present utility model below is the back that is pivoted in succession, the support that elastic rod articulates that makes the back lower end linked by the chair back plate rear again, so back has stressed and deflection angle and cushions the characteristic of forward and backward swing, therefore can provide complete support effect at different waist height, the user that lies by power, so that comfortableness can effectively be promoted and reduce tired sense.

Two, headrest of the present utility model is fixed on the chair frame with its elasticity bridge cover, and the activity of also adopting pivot joint between headrest and elasticity bridge designs, and has a function of Height Adjustment, so except can adjusting in response to user's height, it is different and supported that head in the time of more can be along with user's operation is looked up angle, therefore the back structure of multisection type can meet user's demand of various different builds, solve existing problem points fully.

Description of drawings

Fig. 1: be structure chart of the present utility model;

Fig. 2: the structure chart that is the utility model chair back plate and elastic rod;

Fig. 3: the pivot joint schematic diagram that is the utility model chair back plate and back;

Fig. 4: be composition schematic diagram of the present utility model;

Fig. 5: be operating state schematic diagram of the present utility model.

The specific embodiment

Function and benefit for understanding really that structure of the present utility model is formed and can be reached cooperates the graphic embodiment of enumerating now, introduces explanation as back in detail:

The utility model is a kind of multisection type back structure, mainly by chair frame 1, chair back plate 2, back 3 and rest the head on 4 and form (as shown in Figure 1), wherein:

Chair frame 1: be to extend upward the support body that is connected with chair back plate 2, have two and hold up upright hack lever 11 to have plural number card ditch 12 on the pole face for base.

Chair back plate 2: be to be installed with the framework that wire side 21 corresponding human body backs lean on for lying, cross bar 22 middle sections that link in its rear end are to connect an elastic rod 25 via two corresponding ccontaining enclosing cover 23,24 chimeric lockings, and be provided with at cross bar 22 two ends and fix pipe 26 (as shown in Figure 2, be locked in the screw 231 of enclosing cover 23 by open-work 222 by cross bar 22 middle sections with screw 221, lock via the screw 252 of elastic rod 25 screw 232 of enclosing cover 23 of screw 251, again by the tenon bar 241 of enclosing cover 24 in conjunction with the fixing hole 233 of enclosing cover 23.

Back 3: be to be installed with the framework that wire side 31 corresponding human body waists lean on for lying.

Headrest 4: be the framework of establishing wire side 41 corresponding human body heads, set up two sleeve pipes 44 separately admittedly with corresponding hack lever 11 covers and link elasticity bridge 43 with articulated part 42 in its rear end.

By by above-mentioned member, at first be limited to a card ditch 12 positions via fixing pipe 26 serial connections of chair back plate 2 with the hack lever 11 of chair frame 1, again back 3 is articulated in chair back plate 2 belows (as shown in Figure 3) via articulated part 32, make back 3 lower ends link elastic rod 25 again via articulated part 33 again, at this moment, get final product (as Fig. 4, shown in Figure 5) with 4 fixed the closing of corresponding hack levers 11 covers of two sleeve pipes 44 of resting the head on again.

Therefore the utility model is when implementing, promptly can supply to be combined into a chair tool by chair frame 1 with base, except the fixing pipe 26 of chair back plate 2 is adjusted the location card ditch 12 positions on the hack lever 11 relatively, the elasticity bridge 43 of headrest 4 also can be provided with the function of Height Adjustment, 4 can adjust to make chair back plate 2 and to rest the head at different users's build, and when the user lie lean on after, except chair back plate 2 can provide the support at back, its back 3 also can be lain by power in response to user's waist relatively, (elastic rod 25 can be adopted the mode of plastic cement coating iron material and make to make back 3 have cushion effect via elastic rod 25, so that enhancement elastic force, and the plastic cement surface is provided with wavy surface and can promotes elastic effect), and before can making back 3 relative chair back plates 2 give, so the post deflection angle is can be at different waist height, lying provides complete support effect by power.And also be structure with elasticity bridge 43 and articulated part 42 in headrest 4 part, it is different and supported that head in the time of can be along with user's operation is looked up angle, therefore the back structure of the utility model multisection type can meet user's demand of various different builds, provide complete support effect, so that comfortableness can effectively be promoted and reduce tired sense.

Claims (1)

1, a kind of multisection type back structure is made up of chair frame, chair back plate, back and headrest, it is characterized in that:

Chair frame: be to extend upward the support body that is connected with chair back plate, have two and hold up upright hack lever to have plural Ka Gou on the pole face for base;

Chair back plate: be to be installed with the framework that the corresponding human body back of wire side leans on for lying, the cross bar middle section that links in its rear end is to connect an elastic rod via the two corresponding ccontaining chimeric lockings of enclosing cover, and is provided with the fixing pipe to be serially connected with the Ka Gouchu of hack lever at the cross bar two ends;

Back: be to be articulated in the chair back plate below and to be installed with the framework that the corresponding human body waist of wire side leans on for lying;

Headrest: be the framework of establishing the corresponding human body head of wire side, set up two sleeve pipes separately admittedly with corresponding hack lever cover and link the elasticity bridge with articulated part in its rear end;

By by above-mentioned member, make the elastic rod of chair back plate be articulated in the back below via an articulated part, so that back provides the buffering elasticity of forward and backward deflection angle relatively, and rest the head on also swing of relative resilient bridge and buffering will be provided the user complete support effect by forming of its multisection type.

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