CN201178854Y - Office chair headrest set with elastic buffering effect - Google Patents

Abstract

The utility model relates to an office chair headrest set with elastic cushioning effect, which comprises a support, a headrest and an elastic cushioning mechanism, wherein, the lower end of the support is fastened to the back of a backrest, the support extends upwards and enables the upper end part of the support to be connected with and supported by the back board of the headrest; the headrest surface of the headrest is arranged above the upper edge of the backrest; the elastic cushioning mechanism is arranged between the back board of the headrest and the upper end part of the support and utilizes the deformation of an elastic part when being pressed to cushion pressure subjected to the headrest. When a sitting person suddenly rests the head on the headrest surface, counterforce which is from the headrest and is subjected to the head of the sitting person can be cushioned by means of the elastic cushioning mechanism. Moreover, when the sitting person changes from a sitting posture into an inclined lying posture or a lying posture, an arc line between the dorsohumeral region and the head is changed, and the pressure subjected to the headrest is comparatively great, the office chair headrest set with elastic cushioning effect can bear the subjected pressure and automatically adjust the front position of the headrest surface so as to enhance the cushioning effect of the headrest and improve the comfort of the headrest used in various postures, such as the sitting posture, the inclined lying posture or the lying posture.

Description

The office chair headrest group of tool elastic buffer effect

Technical field

The present invention relates to a kind of office chair headrest group, refer to a kind of office chair headrest group that an elastic buffering mechanism is set especially between headrest and support.

Background technology

With reference to shown in Figure 1, it is existing one to have the office chair schematic perspective view of headrest.One office chair, 1 employed headrest group 10 generally comprises a headrest 11 and one support 12, the upper end of described support 12 is connected with the back side or the bottom surface of headrest 11, its lower end then locks at the nearly upper limb place at the back side 14 of the chair back 13, but make headrest group 10 can be installed on the chair back 13 place, right position for seat person head pillow on headrest face 111.And with regard to the headrest group that office chair uses on the market at present, the functional design of described headrest group 10 is quite limited, major part is confined to the ergonomic designs of face shaping or the height of headrest is adjusted function, make to increase the comfortableness of seat person head pillow on headrest 11 with soft cushion body such as foamed cotton etc. as: the skin of headrest, 11 the headrest face 111 of maybe will resting the head on is designed to central inner concave arc surface so that seat person head can be stablized pillow and avoid to the both sides landing; Maybe with the headrest 11 of headrest group 10 and support 12 matching design so that rest the head on and 11 have height and adjust function for needing (as cooperating different statures) adjust the high and low position of headrest 11 with the seat person.So discuss with the operating position of headrest group 10, headrest 11 buffering effect and rest the head on 11 also quite important with respect to the forward position of the chair back 13, the comfort level that these two factor affecting headrests 11 use is very huge, above-mentioned forward is meant seat person's head pillow force direction on headrest face 111 time, just the rest the head on vertical direction of face 111, therefore described forward position is meant that headrest face 111 is with respect to the forward distance of the chair back 13 or the forward distance between the headrest face 111 and the chair back 13.But the functional design of above-mentioned existing headrest group 10 obviously can't satisfy or reach the comfort level requirement of above-mentioned two key factors.When its head back wants pillow on headrest 11 after the user sits down, seat person head and headrest often be easy to generate between 11 an effect of impact (as the normal habituation of seat person rashly backward pillow on headrest 11), the damage or the sticky feeling of the reaction force that causes headrest relatively easily causes seat person's head, though the headrest skin is provided with soft cushion body, its buffering effect is also not enough; Work as seat person head pillow again on headrest 11, seat person head can be to 11 generation one active forces (being stressed) of resting the head on, headrest 11 relatively also produces a reaction force (counter-pressure) to seat person head and the compressing head, and the size of described active force or reaction force varies with each individual, different as men and women's build, each one shoulder neck is also different to the camber line of head, and each one head size and shape also have difference, therefore rest the head on 11 to allow the people feel that comfortable forward position (with reference to above stated specification) also varies with each individual most; Again when the sitting posture state, the reaction force of described headrest 11 (counter-pressure) is not too large, but when the seat person changes over (chair back 13 is adjusted degree of facing upward backward) when reclining or lying low attitude by sitting posture, can strengthen (during with sitting posture the angle of the chair back 13 be used as 0 calculate) along with the chair back 13 lying angles and become big (component of the gravity pillow of seat person head on headrest 11 can become big gradually) relatively according to the described reaction force of mechanical analysis result (counter-pressure), resting the head at this moment 11 allows the seat person feel that comfortable forward position also can change relatively most; Yet existing headrest group 10 is after installation, the forward position of its headrest 11 is a relative fixed, can't change in response to difference seat person's stature (especially takeing on camber line and the head size shape of neck) to head, also can't change the attitude of reclining or lie low into by sitting posture and change, so be difficult to make the instructions for use of resting the head on and reaching optimum reelability quality with the seat person; When on the headrest face of seat person head pillow in inappropriate forward position, reaction force regular meetings compressing heads that headrest 11 is produced and cause sticky feeling, even influence the neck nerve and cause neck to ache.Known to last, the various functional design of existing headrest 11 all can't produce the efficient buffer effect to 11 the reaction force of resting the head on, also can't being stressed or the forward position of variation of force and self-adjusting head pillow 11 with headrest 11, especially the sticky feeling or the sense of aching will be more obvious when facing upward the lying posture attitude, influence the comfort level that described headrest group 10 is used greatly, just the functional design of existing office chair headrest group 10 and the reaction force that can't effectively solve headrest 11 cause the problem of head sticky feeling; The present invention designs at the shortcoming of existing office chair headrest features.

Summary of the invention

Main purpose of the present invention is: a kind of office chair headrest group of tool elastic buffer effect is provided, and the reaction force that solves the functional design of existing office chair headrest group and can't effectively solve headrest 11 causes the problem of head sticky feeling.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of office chair headrest group of tool elastic buffer effect is characterized in that: comprise a support, a headrest and an elastic buffering mechanism, wherein:

Support, its lower end be locking at place, the back side of the chair back, extend upward by the lower end again and its upper end is supported on the backplate of headrest with binding forward;

Headrest, its binding is supported on the upper end of support, and its headrest face is positioned at the upper limb top of the chair back for seat person head pillow;

Elastic buffering mechanism, it is arranged between the upper end of headrest and support, comprises the elastic component that is stressed that at least one is used for cushioning the headrest face.

Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be: to rely on the reaction force (counter-pressure) of the pooling feature of described elastic buffering mechanism with buffering headrest face, and can cooperate the size that is stressed and the forward position of self-adjusting head pillow face, with the buffering effect of enhancement headrest, and promote the comfort level that headrest uses under sitting posture, the attitude of reclining or lie low.

Description of drawings

Fig. 1 one has the schematic perspective view of the office chair of existing headrest;

Fig. 2 is that one embodiment of the invention is installed in schematic perspective view on the office chair;

Fig. 3 is the rest the head on perspective exploded view of an embodiment of office chair of the present invention;

Fig. 4 is the combined side schematic diagram of Fig. 3;

Fig. 4 A is the local enlarged diagram of Fig. 4;

Fig. 5 is the schematic perspective view of headrest face among Fig. 3;

Fig. 6 is a user mode of the present invention (sitting posture) schematic diagram;

Fig. 7 is another user mode of the present invention (reclining) schematic diagram.

Description of reference numerals: office chair 1; Headrest group 10; Headrest 11; Headrest face 111; Support 12; The chair back 13; The back side 14; Headrest group 2; Headrest 20; Headrest face 21; Backplate 22; Between the chamber 23; Flute profile seat 24; Enclosing cover 25; Perforation 26; Lamellar body 27 suspends; Support 30; Upper end 31; Spatial portion 311; Bottom 32; Perforate 321; Fixed screw 322; Epimere portion 33; Long perforate 331; Hypomere portion 34; Perforate 341; Medial surface 342; Arc-shaped slot 343; Screw 344; Enclosing cover 35; Perforate 351; Elastic buffering mechanism 40; Connector 41; Leading section 411; Rearward end 412; Elastic component 42; Terminal 421; Head end 422; Locked instrument 60; Locking face 61; Locking hole 62; Locking part 63; Outer body 64; The spherical button 70 of elasticity; Spring 71; Spheroid 72.

The specific embodiment

For making the present invention clear and definite more full and accurate, lift a preferred embodiment now and cooperate following diagram, structure of the present invention and technical characterictic thereof are described in detail as the back:

Shown in figure 2,3,4, it is respectively schematic perspective view, perspective exploded view and operating state side schematic view that the office chair headrest of tool elastic buffer effect of the present invention is organized an embodiment.The office chair headrest group 2 of tool elastic buffer effect of the present invention is mounted in place, right position confession seat person head pillow on the chair back 13, mainly comprise headrest 20, one support 30 and an elastic buffering mechanism 40, wherein, described headrest 20 can be designed to a shell structure, is made up of a headrest face 21 and a backplate 22; The about central position of the inner face of described backplate 22 is provided with between a Room 23, be provided with a horizontal flute profile seat 24 and a perforation 26 between described chamber in 23, and utilize an enclosing cover that matches 25 locking 23 outsides between the chamber, make the movable leading section 411 that is embedded a connection piece 41 on the described flute profile seat 24, and the rearward end 412 of described connector 41 is stretched out backward by perforation 26,20 can pivot with respect to rearward end 412 activity in a vertical angular range of connector 40 so that rest the head on, just when the rearward end 412 of connector 40 fixedly the time, described headrest 20 can be vertically movable the pivot shown in the arrow B of Fig. 4 in the angular range, with the head pillow that the cooperates different seat persons arrow B as Fig. 4 on it ' shown in, make headrest 20 can meet ergonomic designs.

Described support 30 is a vertical strip tubular body or bodies of rod, shape is regardless of, its upper end 31 is to link forward to support headrest 20, described upper end 31 is provided with a spatial portion 311, one section cross sectional shape corresponding matching of the rearward end 412 of the cross sectional shape of described spatial portion 311 and connector 41, cross sectional shape as the described spatial portion 311 of present embodiment is a triangle, and rearward end 412 movable the spatial portion 311 interior and stable front and back of upper end 31 that are set in that make connector 41 are to slip; Bottom 32 ends of support 30 are locking nearly upper limb places at the back side 14 of the chair back 13, present embodiment is to utilize locking block 60 locking earlier on the back side 14 of the chair back 13, the locking face 61 of described locking block 60 1 sides (towards the back side 14 of the chair back 13) is provided with a plurality of locking holes 62 for relying on locking part 63 to pass so that locking block 60 is locked on the back side 14 of the chair back 13 as locking screw, but bottom 32 engage sleeves of described again support 30 are located on the outer body 64 of locking block 60 opposite sides, and can rely on a fixed screw 322 to pass 32 bottom surfaces, bottom, one locating hole 321 so that bottom 32 and locking block 60 lockings are integral, just make support 30 rely on described locking block 60 and locking on the back side 14 of the chair back 13.

Described elastic buffering mechanism 40 is arranged between the upper end 31 of headrest 20 and support 30, it is to utilize the elastic component of at least one to constitute, the form of described elastic component does not limit as can be spring, shell fragment or other to be had and relies on distortion producing the object of elastic force, for the distortion that can rely on elastic component to absorb or the active force of buffering headrest 20 person's head pillow that is subjected to the seat; The elastic buffering mechanism 40 of present embodiment mainly comprises an a connection piece 41 and an elastic component 42, wherein, described elastic component 42 is coil type compression springs, is set in the spatial portion 311 of upper end 31 of support 30 and its terminal 421 location are lived to form one to stop end; Described connector 41 is to be embedded in the flute profile seat 24 of headrest 20 inside with its leading section 411 activities, and thereafter end 412 stretch out backward by perforation 26 and the spatial portion 311 of movable upper end 31 of being inserted in support 30 in, and the rearward end 412 that makes connector 41 can be resisted against on the head end 422 of elastic component 42 and can not deviate from as shown in Figure 4 by spatial portion 311, wherein, corresponding matching between the cross sectional shape that relies on described spatial portion 311 and the one section cross sectional shape of connector rearward end 412 makes the rearward end 412 of connector 41 can stablize front and back to slip in spatial portion 311.When the active force of headrest 20 person's head pillows that are subjected to the seat, headrest 20 can compressing connectors 41 backward backward with the head end 422 of synchronous compressing elastic component 42, force elastic component 42 elastic compression shown in arrow A among Fig. 4 and produce buffering effect; When headrest 20 pressurized active force disappears, but described elastic component 42 again reinstatement so that the 20 also resiles of resting the head on.So, after the seat person takes seat its head rashly backward pillow headrest 20 the time as shown in Figure 6, be easy to generate an effect of impact between seat person's head and the headrest 20 this moment, maybe the chair back 13 is adjusted to the state of reclining as shown in Figure 7 or lying status (figure do not show) by sitting posture as the seat person, seat person head also along with chair back layback and pillow on headrest 20, also be easy to generate an effect of impact between seat person's head and the headrest 20 this moment, and the head pillow at the active force (gravity of seat person head component on headrest 20) of headrest on 20 also along with the chair back 13 angle of reclining strengthens (during with sitting posture the chair back 13 angles of nearly vertical configuration when 0 calculate) and becomes big relatively, then can rely on 41 pairs of elastic components of connector 42 of described elastic buffering mechanism 40 to produce compression effectiveness, make between headrest 20 and the support 30 and produce a relative displacement, and then reach buffering effect to cushion seat person head to resting the head on 20 impact; But further and the size of the active force of engagement head pillow on headrest 20 and the forward position of self-adjusting head pillow 20, just when described active force is big the forward position of its occipitalia 20 then because of reducing relatively by compression, to promote 20 comfort levels of under sitting posture, the attitude of reclining or lie low, using of resting the head on.

Shown in figure 4,4A, the support 30 of present embodiment further can be designed to the two-part structure of scalable adjustment, comprise an epimere portion 33 and a hypomere portion 34, it is that epimere portion 33 is linked in the hypomere portion 34, can establish the always horizontal long perforate 331 of the section of wearing portion 34 in described epimere portion 33 bottoms, be provided with two ends that a compression spring 71 and two spheroids 72 are located at compression spring 71 respectively in the described horizontal long perforate 331; On the Shu side of hypomere portion 34 relative spring 71 flexible directions, a perforate 341 is set again, another medial surface 342 of perforate 341 is provided with a plurality of arc-shaped slots 343 of vertically arranging relatively, cooperate described perforate 341 to be provided with an enclosing cover 35 again, establish a perforate 351 in the appropriate position of enclosing cover 35 corresponding sealed with the perforate 341 of hypomere portion 34 with enclosing cover 35 to utilize a screw 344 to pass perforate 351; Wherein, spheroid 72 can rely on the elasticity of the described spring 71 of compression and outwards engage in the arc-shaped slot 343, to form a spherical button 70 of elasticity with elasticity button function; Then rely on the spherical button of described elasticity 70 functions, make the epimere portion 33 of support 30 can be shown in the arrow C of Fig. 4 at upper and lower sliding transfer in the hypomere portion 34, adjusting height and position and to select to be positioned wherein in the arc-shaped slot 343, and reach the adjustment function of the height and position of headrest 20.

With reference to shown in Figure 5, the headrest face 21 of the headrest 20 of present embodiment further can be provided with the lamellar body 27 that suspends of multi-disc Openworks shape, the described headrest face 21 and the lamellar body 27 that suspends thereof can utilize plastic rubber ejaculate molding technology one-body molded, make to rely on the described multi-disc elastic reaction of lamellar body 27 that suspends, and can promote the buffering effect of described headrest 20.

More than explanation is just illustrative for the utility model; and nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited; can make many modifications, variation or equivalence, but all will fall within the protection domain of the present utility model.

Claims (6)

1. the office chair headrest group of a tool elastic buffer effect is characterized in that: comprise a support, a headrest and an elastic buffering mechanism, wherein:

Support, its lower end be locking at place, the back side of the chair back, extend upward by the lower end again and its upper end is supported on the backplate of headrest with binding forward;

Headrest, its binding is supported on the upper end of support, and its headrest face is positioned at the upper limb top of the chair back for seat person head pillow;

Elastic buffering mechanism, it is arranged between the upper end of headrest and support, comprises the elastic component that is stressed that at least one is used for cushioning the headrest face.

2. according to the office chair headrest group of the described tool elastic buffer of claim 1 effect, it is characterized in that: described headrest further comprises a backplate, the about central position of described backplate inner face is provided with a flute profile seat and a perforation, leading section for a connection piece is embedded versatilely on the flute profile seat, and the rearward end of described connector is stretched out backward by perforation.

3. according to the office chair headrest group of the described tool elastic buffer of claim 1 effect, it is characterized in that: described support further thereon the end one spatial portion is set, one section cross sectional shape corresponding matching of the cross sectional shape of described spatial portion and the rearward end of a connection piece, the rearward end of described connector are set in the interior front and back of spatial portion of the upper end of support versatilely and slide.

4. according to the office chair headrest group of the described tool elastic buffer of claim 1 effect, it is characterized in that: described elastic buffering mechanism further comprises an a connection piece and an elastic component, described elastic component is a coil type compression spring, and being set in upper end one spatial portion of support, and the terminal location of elastic component and form and stop end; The leading section of described connector is embedded at headrest inner versatilely, and the end extends back and is inserted in versatilely in the spatial portion of upper end of support thereafter, and the rearward end of connector is resisted against on the head end of elastic component.

5. according to the office chair headrest group of the described tool elastic buffer of claim 1 effect, it is characterized in that: described support further comprises an epimere portion and a hypomere portion, described epimere portion is movably set in the hypomere portion, and the bottom of epimere portion is provided with the spherical button of transverse elasticity, and the inner face of hypomere portion is with respect to the corresponding draw-in groove that is provided with a plurality of vertical arrangements of the spherical button of described transverse elasticity, the longitudinal sliding motion displacement in hypomere portion of epimere portion, described elasticity sphere are detained optionally holding therein in the draw-in groove.

6. according to the office chair headrest group of the described tool elastic buffer of claim 1 effect, it is characterized in that: the headrest face of described headrest further is provided with the multi-disc lamellar body that suspends.

Images