CN104736017B - Chair - Google Patents

Chair Download PDF

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Publication number
CN104736017B
CN104736017B CN201380054080.2A CN201380054080A CN104736017B CN 104736017 B CN104736017 B CN 104736017B CN 201380054080 A CN201380054080 A CN 201380054080A CN 104736017 B CN104736017 B CN 104736017B
Authority
CN
China
Prior art keywords
backrest
body
back
occupant
portion
Prior art date
Application number
CN201380054080.2A
Other languages
Chinese (zh)
Other versions
CN104736017A (en
Inventor
五十嵐僚
井泽晶
井泽晶一
益永浩
Original Assignee
株式会社冈村制作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2012230929 priority Critical
Priority to JP2012-230929 priority
Application filed by 株式会社冈村制作所 filed Critical 株式会社冈村制作所
Priority to PCT/JP2013/078166 priority patent/WO2014061732A1/en
Publication of CN104736017A publication Critical patent/CN104736017A/en
Application granted granted Critical
Publication of CN104736017B publication Critical patent/CN104736017B/en

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/44Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/445Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with bar or leaf springs
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C5/00Chairs of special materials
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/46Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs

Abstract

The present invention relates to a kind of chair (1),Which possesses foot body (10)、Back support body (20) and backrest body (50A),Wherein,The back support body (20) is supported by the foot body (10),The backrest body (50A) is supported by the back support body (20),And support the back of the body of occupant,The backrest body (50A) possesses backrest (50) and backrest rear support part (40),Wherein,The backrest (50) is with support face piece (51) and a pair vertical frame portion (53A、53B),Support face piece (51) bears the back of the body of the occupant,And with the pliability that can be deformed according to the back of the body,The pair of vertical frame portion (53A、The support face piece (51) 53B) is installed,Separate on the width by the power elastically deformable acted on by support face piece (51),Backrest rear support part (40) connects the vertical frame portion (53A in the vertical direction、53B).

Description

Chair

Technical field

The present invention relates to a kind of chair.

The application based on Japanese patent application filed in 18 days October in 2012 2012-230929 and CLAIM OF PRIORITY, It is hereby incorporated its content.

Background technology

For chair, as basic structure have foot body, be arranged at the foot body top portions and to occupying this The back supported by the occupant of portions, it is commonly known to have various structures.

For example, as the supporting structure at the back for constituting chair, it is proposed that a kind of that there are back side components (back member) With the chair of arm (arm), wherein, the arm extends upward from foot body, and from rear to the rear surface of back side components in width On direction, detached part is supported (with reference to following patent documentations 1).

In addition, it is also proposed that it is a kind of possess backrest and the back of the body pillar chair, wherein, the backrest with by upper frame, under Back frame frame and the backboard of the inside into the back frame frame that frame portion, left frame portion and right frame portion are constituted, the back of the body pillar is from rear Hold left frame portion and the right frame portion (with reference to following patent documentations 2) of the backrest.

In this chair, by the back rest supported by back of the body pillar, backboard can reliably support the back of the body of occupant.

Prior art literature

Patent documentation

Patent documentation 1:No. 7249802 description of U.S. Patent No.

Patent documentation 2:Japanese Patent Publication 2009-112729 publication

The content of the invention

(1) technical problem to be solved

But, in the structure described in above-mentioned patent documentation 1, even if the power by occupant to back side components effect backward, As back side components are reliably supported by the axial force of arm, therefore, back side components are suppressed to the deformation in direction outside surface.By This, even if occupant is using making the posture that dorsad rear topples over, it is also difficult to which being deformed into makes the back of the body of occupant significantly rearward Topple over.

Additionally, in the structure described in above-mentioned patent documentation 2, left frame portion and right frame portion are supported due to carrying on the back pillar, Therefore, even if the power by occupant to backboard effect backward, the deformation of left frame portion and right frame portion is also limited, and is arranged at left frame The deformation of the backboard in portion and right frame portion is also restricted.Thus, even if occupant is using the posture for toppling over dorsad rear, Also it is difficult to be deformed into the back of the body for making occupant and significantly rearward topples over.Therefore, in the chair described in patent documentation 1 and 2, deposit Freely can not enter to exercise the action that dorsad rear is significantly toppled in the state of taking a seat in occupant, it is impossible to follow the change of posture Problem as changing.

The present invention is completed in view of the above problems, there is provided a kind of that the action for toppling over dorsad rear is adopted in occupant In the case of can follow the chair of the posture.

(2) technical scheme

(1) first method of the invention, chair possess foot body, back support body and backrest body.The back support Body is supported by foot body.The backrest body is supported by the back support body, supports the back of the body of occupant.The backrest body possess backrest and Backrest rear support part, wherein, the backrest has support face piece and a pair vertical frame portions, and the support face piece bears the occupant The back of the body, and with the pliability that can be deformed according to the back of the body, the pair of vertical frame portion is provided with the support face piece, by by Separate on the width of the power elastically deformable of the support face piece effect;The backrest rear support part is in the vertical direction Connect the vertical frame portion.

According to said structure, it is transferred to be installed on support face piece and in width to supportting the load that face piece is rearward acted on by occupant Detached a pair vertical frame portions on degree direction.It is deformed into by the power by support face piece effect and elastic deformation in vertical frame portion, rearward While inclination, the support face piece being installed between vertical frame portion is rearward moved on the whole in width.Further, since after backrest Portion's supporting member connects vertical frame portion in the vertical direction, therefore with vertical frame portion tilted rearward, backrest rear support part Make its posture tilted rearward.Thus, if the load of occupant is to the direction effect for making backrest topple over towards the rear, can be with The mode for following the action for toppling over backrest makes backrest body entirety tilted rearward.

(2) in the chair of above-mentioned (1), the backrest is supported by the backrest rear support part, is taken a seat described in supporting The back of the body of person.The backrest rear support part is supported by the back support body.The backrest rear support part can also have There are lower connecting part, deformation permission portion and top connecting portion.The lower connecting part is connected with the back support body.The change Shape permission portion extends upward from the lower connecting part, and can act on the backrest according to by the back of the body of the occupant Load and elastic deformation.The top connecting portion extends upward from the upper end in the deformation permission portion, and upper end with it is described Backrest connects.

According to said structure, if by occupant to backrest rearward used load, the load of occupant is transferred to The backrest rear support part of the breasting back of the body.Now, the bottom with the connection of back support body is arranged in backrest rear support part Connecting portion and and the deformation permission portion between the top connecting portion of backrest connection, with tilted rearward upward and gradually Mode carry out elastic deformation.Together with the deformation permission portion deformation, can be made by the backrest that backrest rear support part is supported Its posture significantly tilted rearward.

Additionally, being provided with top connecting portion at the place closer to the top of deformation permission portion than tilted rearward.Thus, with change Shape permission portion tilted rearward, top connecting portion can maintain the state that upper end is connected with backrest, rearward move on one side. Thus, if the load of occupant is to the direction effect for making backrest topple over towards the rear, can be following topple over backrest dynamic The mode of work makes backrest tilted rearward.

(3) in the chair of above-mentioned (2), it is also possible to be formed as the top connecting portion with upward and gradually forward Side inclines.

According to said structure, due to being formed as top connecting portion with inclining forwards upward and gradually, accordingly, it is capable to Enough suppress top connecting portion itself deformation in the longitudinal direction to support the load of occupant, and be connected with top connecting portion Backrest also can reliably support the load of occupant.

On the other hand, by deforming the deformation of permission portion, can be made and backrest rear support part according to the load of occupant Lower connecting part and top connecting portion connection backrest tilted rearward.

(4) in the chair of above-mentioned (2) or (3), or the top connecting portion has a pair of connection sheets, this is to even Contact pin is connected with the deformation permission portion in lower end, and by with upward and it is separated from one another in the way of be formed as V shape, institute The upper end for stating a pair of connection sheets is connected with the backrest.

According to said structure, it is connected with backrest by the upper end of a pair of connection sheets, reliably can be supported by occupant couple The load that backrest is acted on to width side or opposite side.

(5) in the chair in above-mentioned (2) to (4) described in any one, or the vertical frame portion has lower section structure Part and top component, wherein, the lower end of the lower component is connected with the lower connecting part, and is formed as with upward Gradually incline forwards, the top component is formed as from the lower component extending upward, and with upward and to than The lower component is inclined relatively rearward, is connected with the top connecting portion in upper end.

According to said structure, as lower component is with inclining upward and forwards, therefore, it is possible to suppress below this The deformation of component itself, reliably supports the load of occupant.On the other hand, due to top component with upward and to than The relatively more rearward inclination of lower component, is followed therefore, it is possible to the load tilted rearward according to occupant.

Herein, the deformation of the lower component of the vertical frame portion being connected with backrest rear support part in top and bottom is pressed down System, and up can incline in the range of the above-below direction of component.Thus, if backrest rear support part tilted rearward, Then top component is with the inclined at inclination angles bigger than backrest rear support part.

Therefore, it is possible to the deflection in the deformation permission portion of backrest rear support part is suppressed to Min., and can Vertical frame portion is rearward significantly inclined, more efficiently follow the back of the body of occupant.Therefore, even if in deformation permission portion repeated deformation And in the case of concentrating torque, there will not be damage, breakage.

(6) in the chair of above-mentioned (5), or it is described support face piece bottom be connected with the lower component, top It is connected with the top component.

According to said structure, if by occupant to backrest used load, the support face piece of backrest becomes along the back of the body of occupant Shape, and the deformation permission portion supported in the backrest rear support part of backrest carries out elastic deformation.Thus, if occupant The direction effect for making backrest rearward topple over is supported on, then can make backrest tilted rearward to follow topple over backrest dynamic Make, and can be born in the way of the back of the body for encasing occupant in the state of tilted rearward.

(3) beneficial effect

According to above-mentioned chair, the posture can be followed in the case where occupant is using the action for toppling over dorsad rear.

Description of the drawings

Fig. 1 is the axonometric chart of the chair for observing one embodiment of the present invention obliquely from the front.

Fig. 2 is the axonometric chart on the chair top that one embodiment of the present invention is observed from rear.

Fig. 3 A are side view of the chair of one embodiment of the present invention when usual.

Fig. 3 B are that the chair of one embodiment of the present invention makes the side view in the case that dorsad rear is toppled in occupant.

Fig. 4 is the axonometric chart of the chair that one embodiment of the present invention is observed from front.

Fig. 5 is the side view of the chair of one embodiment of the present invention.

Fig. 6 A are the P-P sectional views of the Fig. 4 of the chair of one embodiment of the present invention when usual.

Fig. 6 B are the P-P sectional views of the Fig. 4 of the chair of one embodiment of the present invention in the state of occupant takes a seat.

Fig. 7 A are axonometric chart of the chair of one embodiment of the present invention viewed from above when usual.

Fig. 7 B are viewed from above in the chair of one embodiment of the present invention, and occupant is using side in the width direction The axonometric chart of the situation of the posture rearward turned one's head.

Fig. 8 is the axonometric chart on the chair top of the variation that one embodiment of the present invention is observed from rear.

Specific embodiment

Below, referring to the drawings the chair of one embodiment of the present invention is illustrated.

As shown in figure 1, the chair 1 of present embodiment possesses foot body 10, back support body 20, portions 30, backrest rear portion Bearing portion part 40 and backrest 50.

Foot body 10 is arranged on the F of floor.Back support body 20 is supported by foot body 10.Portions 30 are arranged at back support body 20, and it is available for occupant to take a seat.Backrest rear support part 40 is supported by back support body 20.Backrest 50 is by backrest rear support Part 40 is supported, and supports the back of the body of occupant.Below each structure is described in detail.In addition, in the following description, put up with The direction that seated user takes a seat, disseat is set to fore-and-aft direction, occupant is taken a seat side and is set to front, opposite side is set to rear, Additionally, the direction in the horizontal plane vertical with fore-and-aft direction is set to width also, and chair is left in the width direction Side is set to side.

(foot body)

Foot body 10 possesses multiple foot levers 12 and socle 13, wherein, the plurality of foot lever 12 is provided with and can rotate on the F of floor Castor 11;The socle 13 is supported by the plurality of foot lever 12.Multiple foot levers 12 are configured to radial, and connect in cardinal extremity each other Connect, castor 11 is installed in the front end of each foot lever 12.

13 bottom of socle is connected with the cardinal extremity of multiple foot levers 12, and erects upward setting.Additionally, in the socle 13 Top is provided with supporting base 14, and the supporting base 14 is built-in with the reclining mechanism that can make 20 tilted rearward of back support body (not shown).

(back support body)

Back support body 20 with a pair forward arm 21, a pair to arm 23 backward of upper arm parts 22 and a pair, wherein, institute The base portion for stating a pair arms 21 forward is pivotally connected to two side of width of supporting base 14;It is the pair of to upper arm parts 22 Extend from the base portion of the arm 21 forward upward, and support portions 30;The pair of arm backward 23 is from arm 21 forward Base portion rearward extend.

As shown in Fig. 2 the pair of arm backward 23 is by being configured to being moved closer to towards rear each other, and rear End is connected to each other, so as to as configured in one piece into downward V shape.Backrest described later is fixed in the rear end of a pair arms 23 backward The bottom of rear support part 40.

Additionally, as shown in figure 1, the handrail 26 for extending upward is provided with from side on back support body 20.

(portions)

As shown in Fig. 3 A and Fig. 3 B, portions 30 are in the way of it can slide in the longitudinal direction relative to supporting base 14 before which Portion is supported by, and be pivotally connected to back support body 20 to upper arm parts 22.Consist of, with using supporting base 14 Reclining mechanism makes 20 tilted rearward of back support body, and portions 30 are relatively rearward moved relative to supporting base 14, and are made Rear side inclination movement downwards.

(backrest rear support part)

As shown in Fig. 2 backrest rear support part 40 has lower connecting part 41, deformation permission portion 42 and top connecting portion 43, wherein, the lower connecting part 41 is connected with back support body 20;The deformation permission portion 42 from the lower connecting part 41 to Top extends;The top connecting portion 43 is configured to as the upper end from the deformation permission portion 42 is upward gradually to width side Extend laterally.

Lower connecting part 41 is formed with embedding with the rear end of a pair of back support body 20 arms 23 backward in Lower rear surface The recess (not shown) of conjunction, a pair backward arm 23 it is chimeric with the recess.Lower connecting part 41 is in the recess and back support body 20 top is fixed for example, by screwing up of carrying out of bolt, nut (not shown).Further, lower connecting part 41 is in lower end It is connected with backrest 50.

As shown in Fig. 1, Fig. 4 and Fig. 5, the lower end for deforming permission portion 42 is connected with lower connecting part 41 and is matched somebody with somebody upward Put, upper end is connected with top connecting portion 43.Additionally, the length dimension of the width in deformation permission portion 42 is with upward Taper into, as from halfway, the length dimension of width becomes big again upward.

The deformation permission portion 42 does not form rib before which, and make according to by occupant back to backrest 50 act on it is negative Carry the structure of easy elastic deformation.

Even if arranging rib on the surface in deformation permission portion 42, it is also possible to by the material or thickness that adjust deformation permission portion 42 Deng, and make can according to by occupant back to backrest effect load and elastic deformation structure.

Top connecting portion 43 is formed as lower end and is connected with deformation permission portion 42, and with upward gradually to width Outer expandable, while with gradually inclining forwards upward.

In the present embodiment, the top connecting portion 43 have a pair of connection sheets 43A, 43B, its with upward and that Gradually on the outside of width, detached mode is configured for this, and upper end is connected with backrest 50, is existed by a pair of connection sheets 43A, 43B It is integrally formed as V shape.

A pair of connection sheets 43A of above-mentioned lower connecting part 41, deformation permission portion 42 and composition top connecting portion 43,43B quilts Integrally formed, 40 entirety of backrest rear support part is bent to form in the way of rearward protruding when side-looking is observed.

That is, lower connecting part 41 is while bending, as entirety with upward and towards back sweep. Additionally, constituting a pair of connection sheets 43A, 43B of top connecting portion 43 while bending, with inclining towards front upward Tiltedly.Top connecting portion 43 is connected while bending by deformation permission portion 42 with lower connecting part 41.

(backrest)

As shown in Fig. 2 backrest 50 has support face piece 51, upper frame 52 and a pair vertical frame portions 53A, 53B (53), wherein, institute State the back of the body that support face piece 51 bears occupant;The upper frame 52 is provided with the support face piece 51, and with backrest rear support part 40 Top connecting portion 43 connect;The pair of vertical frame portion 53A, 53B (53) is connected with the upper frame 52, and is provided with support face piece 51。

Support face piece 51 bears the back of the body of occupant, can be constituted according to the flexual part of the gesture distortion of the back of the body by having.Tool For body, formed by netted material in the present embodiment, flexibly stretched by structure wire rod into the net, can as entirety It is elastically deflected deformation.The support face piece 51 is arranged at indulges the part that frame portion 53 is surrounded by upper frame 52 and a pair, and its end is fixed In these upper frames 52 and a pair vertical frame portions 53.

Upper frame 52 extends in the width direction, its two ends respectively with a pair of connection sheets 43A, 43B of top connecting portion 43 Upper end connects, and is connected with the upper end of a pair vertical frame portions 53A, 53B respectively.

One vertical frame portion 53A has lower component 57A and top component 56A, wherein, under the top component 56A and this The upper end connection of square component 57A, and can be by the elastic deformation by the power that acts on of support face piece 51.Similarly, opposite side is vertical Frame portion 53B also has lower component 57B and top component 56B, wherein, the top component 56B is upper with lower component 57B End connection, and can be by the elastic deformation by the power that acts on of support face piece 51.

As shown in figures 2 and 5, the lower connecting part of the lower end of lower component 57A, 57B and backrest rear support part 40 41 connections, and be formed as with upward gradually forwards and to width outer expandable.Additionally, lower component 57A, 57B is respectively formed as sectional dimension with diminishing upward.

Top component 56A, 56B be configured to according to by occupant the back of the body act on load and flexibly torsional deflection, And deformation can be elastically deflected.

Above this, the lower end of component 56A, 56B is connected with corresponding lower component 57A, 57B respectively, upper end and upper frame 52 And a pair of connection sheet 43A, 43B connections of backrest rear support part 40, and be formed as with upward and to than lower section structure The relatively more rearward inclination of part 57A, 57B.

In the present embodiment, top component 56A, 56B are formed as upper end with component 57A, 57B from below towards upper Square gradually tilted rearward.

So, indulge frame portion 53A, 53B lower component 57A, 57B is formed through with being increasingly towards from bottom upward Front, and top component 56A, 56B is formed through with from lower component 57A, 57B and top component 56A, 56B Connecting portion is increasingly towards upward rear, and vertical frame portion 53A, 53B is integrally bent to form in the way of convex towards front.

As shown in Fig. 2 above-mentioned backrest rear support part 40 and vertical frame portion 53 are integrally formed as ring-type with side-looking observation. In present embodiment, by the lower connecting part 41 of backrest rear support part 40, deformation permission 42, one, portion connection sheet 43A, one The top component 56A of individual vertical frame portion 53A and lower component 57A are constituted observes the first annulus 61 annular in shape with side-looking.

Additionally, by the lower connecting part 41 of backrest rear support part 40, deformation permission portion 42, another connection sheet 43B, The top component 56B of another vertical frame portion 53B and lower component 57B are constituted observes the second annulus 62 annular in shape with side-looking.

These first annulus 61 and the second annulus 62 are connected by lower connecting part 41 and deformation permission portion 42, and are made It is integrally formed for entirety.Additionally, upper frame 52 is also connecting 62 respective upper end of the first annulus 61 and the second annulus respectively Mode is integrally formed.

I.e., in the present embodiment, each portion of backrest rear support part 40 is vertical with the upper frame 52 of backrest 50 and a pair Frame portion 53A, 53B is integrally formed.

Additionally, backrest body 50A is made up of backrest rear support part 40 and backrest 50.That is, backrest body 50A is leaned on Back of the body supporting mass 20 is supported, and supports the back of the body of occupant.

Then, in the case of the portions 30 of chair as constructed as above 1 are occupied to occupant, the backrest rear portion of chair 1 The action of bearing portion part 40 and backrest 50 is illustrated.

The solid line and Fig. 6 A of Fig. 4 represents that occupant occupies portions 30, and does not rest on the chair of the state on backrest 50 The double dot dash line of 1, Fig. 4 of son and Fig. 6 B represent that occupant rests on the chair 1 of the state on backrest 50.

If occupant occupies portions 30, the support face piece 51 of backrest 50 is acted on from the power of occupant, because of the power Cause the wire rod of the net for constituting support face piece 51 flexibly to stretch, the support face piece 51 is thus made on the whole along the back of the body of occupant, And by width substantially central portion towards rear protrusion in the way of arc-shaped ground elastic deformation.

Additionally, vertical frame portion 53A, 53B of support face piece 51 is fixed with by by the support power that acts on of face piece 51, in its width Side with towards rearward mode elastic deformation, and to width medial movement in the way of close to each other.

With vertical frame portion 53A, the 53B elastic deformation, support face piece 51 and can be further deformed into width substantial middle The arc-shaped that portion is projected towards rear, and backrest 50 supported by backrest rear support part 40.

Further, in the case where occupant is significantly rested on backrest 50, as shown in the double dot dash line of Fig. 5, with vertical frame Deformation permission portion 42 in the backrest rear support part 40 of portion 53A, 53B connection can be with acting on backrest by the back of the body of occupant Load on 50 and carry out elastic deformation.Thus, deforming permission portion 42 can be centered on its lower end, with upward and gradually The mode of tilted rearward deforms.Along with the deformation in deformation permission portion 42, the top being configured above the deformation permission portion 42 Connecting portion 43 is rearward moved, and the backrest 50 being connected with the top connecting portion 43 being capable of further tilted rearward.

Additionally, in the state shown in occupant from Fig. 7 A using the appearance from the width side of backrest 50 later rearward In the case of gesture, as shown in Figure 7 B, act on from the width side of the load deflection backrest 50 of occupant, and make vertical frame The load of portion's 53B torsional deflections is to amesiality vertical frame portion 53B effect.

Here, the top component 56B for indulging frame portion 53B is configured to the power by being acted on by backrest 50 and torsional deflection.This Outward, as connection sheet 43A, 43B is formed as separating width with diminishing downward, and be bonded with each other and with deformation permission portion 42 connections, therefore, deform the structure of the torsional deflection that permission portion 42 is configured to promote top component 56B.Thus, top component 56B side torsional deflections backwards in the way of the back of the body of occupant is follow according to the load of occupant.

Further, since connection sheet 43B being connected with top component 56B be configured to the torsion with top component 56B and Displacement, therefore, which is as vertical frame portion 53B is towards the torsion side displacement backward of rear side side.

The support face piece 51 of backrest 50 is flexibly stretched because of the load from occupant, the wire material for constituting the net of the support face piece 51 Contracting, the elastic deformation in the way of the back of the body for encasing occupant.

So, top component 56B, connection sheet 43B and support face piece 51 to be to follow the deformation of the back of the body of occupant, shoulder, to wrap Live in state the back of the body, the mode of shoulder is deformed.

In addition, in the case of the posture that occupant is rearward turned one's head using the width opposite side from backrest 50, Action is carried out similarly.

In such chair 1 for constituting, if by occupant to the rearward used load of backrest 50, the load of occupant It is transferred to the top connecting portion 43 of the backrest rear support part 40 of the upper frame 52 for supporting backrest 50.Now, backrest rear portion In bearing portion part 40 being arranged at the lower connecting part 41 of the connection of back support body 20 with and the top connecting portion that is connected of backrest 50 Deformation permission portion 42 between 43 is with inclined mode elastic deformation towards the rear upward and gradually.Can be with the deformation The deformation in permission portion 42 together, can be made its posture significantly rearward incline by the backrest 50 that backrest rear support part 40 is supported Tiltedly.

Additionally, being provided with top connecting portion 43 at 42 place closer to the top of deformation permission portion than tilted rearward.Thus, with 42 tilted rearward of deformation permission portion, top connecting portion 43 can maintain the state that upper end is connected with backrest 50, on one side Rearward move.Thus, if the load of occupant can make to lean on to follow to the direction effect for making backrest rearward topple over The mode of the action that the back of the body 50 is toppled over makes 50 tilted rearward of backrest.

Additionally, in the normal state, top connecting portion 43 is formed as with gradually inclining forwards upward, therefore, Can suppress top connecting portion 43 itself deformation in the longitudinal direction, support the load of occupant, also, with top connecting portion The backrest 50 of 43 connections also can reliably support the load of occupant.

On the other hand, occupant is in order that dorsad rear is toppled over, if making the load more than usual state act on backward Backrest, then deformation allow that portion 42 deforms because of the load, thus, make lower connecting part 41 with backrest rear support part 40 and The backrest 50 of the connection of top connecting portion 43 tilted rearward according to the load of occupant, can make which follow the back of the body for making occupant The action of tilted rearward.

On the other hand, it is connected with backrest 50 by the upper end of a pair of connection sheets 43A, 43B of top connecting portion 43, Neng Gouke The load acted on to width side or opposite side to backrest 50 is supported from occupant by ground.

Further, since lower component 57A, 57B is with inclining upward and forwards, therefore, it is possible to suppress below this Component 57A, 57B deformation of itself, reliably supports the load of occupant.

On the other hand, due to top component 56A, 56B be formed as with component 57A, 57B from below upper end upward Gradually tilted rearward, therefore, it is possible to the load tilted rearward according to occupant, following makes the dorsad back sweep of occupant Action.

Here, it is connected with the lower connecting part 41 and top connecting portion 43 of backrest rear support part 40 on top and bottom Backrest 50 lower component 57A, 57B deformation be suppressed, up incline in the range of the above-below direction of component 56A, 56B Tiltedly.Thus, if 40 tilted rearward of backrest rear support part, top component 56A, 56B are with than backrest rear support portion The bigger inclined at inclination angles of part 40.

Therefore, it is possible to the deflection in the deformation permission portion 42 of backrest rear support part 40 is suppressed to Min., and Backrest 50 can be made rearward significantly to incline, more efficiently follow the back of the body of occupant.Therefore, even if anti-in deformation permission portion 42 Multiple deformation and in the case of concentrating torque, there will not be damages, breakage.

Additionally, for the power rearward acted on by occupant, if the back of the body of occupant is born by the support face piece 51 of backrest 50, The then load of occupant is transferred to upper frame 52 and a pair vertical frame portions 53A, 53B from support face piece 51.The connection of upper frame 52 is supported on A pair of connection sheets 43A, 43B of backrest rear support part 40, the backrest rear support part 40 are supported by back support body 20. Reliably support from occupant's thereby, it is possible to pass through upper frame 52, backrest rear support part 40 and back support body 20 Load.

On the other hand, the top of a pair vertical frame portions 53A, 53B being connected due to the width both ends with upper frame 52 The power of component 56A, 56B reason support effect of face piece 51 and be elastically deflected deformation, therefore, it is possible to according to the load of occupant chasing after Deform with the mode of the back of the body of occupant, born in the way of encasing the back of the body together with support face piece 51.Therefore, occupant can be with stable State take a seat.

Further, in the case where occupant rearward turns one's head such posture using side in the width direction, from The load of occupant is partial to the width side of backrest 50 and is acted on, and makes the load of vertical frame portion 53A, 53B torsional deflection right Amesiality vertical frame portion 53A, 53B effect.As top component 56A, 56B reason support face piece 51 for indulging frame portion 53A, 53B is made Power and torsional deflection, therefore, it is possible to be become in the way of follow the back of the body of occupant, the deformation of shoulder according to the load of occupant Shape, is born in the way of encasing the back of the body together with support face piece, makes 50 tilted rearward of backrest.

Additionally, if the load from occupant is transferred to a pair vertical frame portions 53A, 53B from the support face piece 51 of backrest 50, Top component 56A, 56B torsional deflection of vertical frame portion 53A, 53B.A pair of connection sheets 43A being connected with top component 56A, 56B, 43B is conjugated with the torsional deflection of top component 56A, 56B.Thus, this is rearward being turned one's head using side in the width direction In the case of the posture of sample, while top component 56A, 56B torsional deflection of side, connection sheet 43A, 43B of side becomes Position, can be born together with support face piece in the way of encasing the back of the body, therefore, it is possible to follow the back of the body of occupant, the deformation of shoulder Stably supported under state.

So, top component 56A, 56B, support face piece 51 and connection sheet 43A, 43B for indulging frame portion 53A, 53B can follow The back of the body of occupant, the deformation of shoulder, tilted rearward stably support the back of the body, shoulder on one side.

On the other hand, lower component 57A, 57B for indulging frame portion 53A, 53B reliably supports occupant together with support face piece 51 The back of the body below waist etc..Thus, in the case of the posture as rearward being turned one's head using side in the width direction, lower section structure Part 57A, 57B can support the waist of occupant together with support face piece 51.

(variation)

Below, the chair 101 of the variation of above-mentioned embodiment is illustrated using Fig. 8.

In chair 1, a pair of back support body 20 backward arm 23,23 connect with the bottom of backrest rear support part 40 Connect.On the other hand, in the chair 101 of variation, a pair of back support body 120 arm 123,123 and a pair vertical frames backward Lower component 57A, the 57B connection of portion 53A, 53B.That is, vertical frame portion 53A, 53B is supported by back support body 120.

Specifically, it is with towards upper that the top of arm 123,123 and lower component 57A, 57B are identically formed backward Side is increasingly towards front.The top of the arm 123,123 backward is connected with lower component 57A, 57B.

Additionally, do not formed on the surface of the lower connecting part 141 of backrest rear support part 140 for install a pair to The recess of arm 23,23 afterwards.

In such chair 101 for constituting, by occupant to supportting the load that face piece 51 is rearward acted on, it is transferred to be installed on Support face piece 51 in the direction of the width detached a pair vertical frame portions 53A, 53B.Act in vertical frame portion 53A, 53B reason support face piece 51 Power and the mode of elastic deformation tilted rearward while deform, the support face piece 51 being installed between vertical frame portion 53A, 53B Rearward moved in width on the whole.Further, since backrest rear support part 140 connects vertical frame portion in the vertical direction 53A, 53B, therefore with vertical frame portion 53A, 53B tilted rearward, backrest rear support part 140 also makes its posture rearward incline Tiltedly.Thus, if the load of occupant acts on the direction for making backrest 50 topple over towards the rear, backrest body can be made to follow The mode of the action that 50A topples over makes 50 overall tilted rearward of backrest.

Additionally, in the case where occupant occupies the portions 30 of chair 101, it is identical with embodiment as above, The support face piece 51 of backrest 50 is acted on from the power of occupant, causes because of the power strands of the net for constituting support face piece 51 flexibly to be stretched Contracting, so that the 51 overall back of the body along occupant of support face piece, and the side projected towards rear with width substantially central portion Formula arc-shaped ground elastic deformation.

Additionally, being fixed with vertical frame portion 53A, 53B of support face piece 51 by by the support power that acts on of face piece 51 so as to width Inner side towards rearward mode elastic deformation, and to width medial movement in the way of close to each other.

With vertical frame portion 53A, the 53B elastic deformation, support face piece 51 and can be further deformed into width substantial middle The arc-shaped that portion rearward projects, and backrest 50 supported by backrest rear support part 140.

Additionally, in the case where occupant is using such posture is rearward turned one's head from the width side of backrest 50, It is identical with embodiment as above, act on from the width side of the load deflection backrest 50 of occupant, and make The load of vertical frame portion 53A, 53B torsional deflection is to amesiality vertical frame portion 53A, 53B effect.Due to indulging frame portion 53A, 53B The power of top component 56A, 56B reason support effect of face piece 51 and torsional deflection, therefore, it is possible to according to the load of occupant following The back of the body of occupant, the mode of the deformation of shoulder to deform, and born in the way of encasing the back of the body together with support face piece, make backrest 50 backward Side inclines.

Additionally, a pair of connection sheets 43A, 43B being connected with top component 56A, 56B of vertical frame portion 53A, 53B are with top The torsional deflection of component 56A, 56B and conjugate.Thus, the feelings of the posture as rearward being turned one's head using side in the width direction Under condition, while top component 56A, 56B torsional deflection of side, connection sheet 43A, the 43B displacement of side can be with support face Part is born in the way of encasing the back of the body together, therefore, it is possible to stably enter in the state of the back of the body of occupant, the deformation of shoulder is follow Row supporting.

So, top component 56A, 56B, support face piece 51 and connection sheet 43A, 43B for indulging frame portion 53A, 53B can follow The back of the body of occupant, the deformation of shoulder, tilted rearward stably support the back of the body, shoulder on one side.

On the other hand, lower component 57A, 57B for indulging frame portion 53A, 53B reliably supports occupant together with support face piece 51 The back of the body below waist etc..Thus, in the case of the posture as rearward being turned one's head using side in the width direction, lower section structure Part 57A, 57B can support the waist of occupant together with support face piece 51.

Additionally, the top of lower component 57A, 57B and the arm backward 123,123 being connected with lower component 57A, 57B with And incline upward and forwards.Thus, chair 101 suppresses lower component 57A, 57B and arm 123,123 itself backward Deformation, reliably supports the load of occupant.Further, since lower component 57A, 57B and the backward part of arm 123,123 are certainly The deformation of body is suppressed, therefore, it is possible to maintain the state being securely connected each other.

Additionally, the action step for illustrating in the above-described embodiment or the variously-shaped of each structure member, combination etc. are only For one, various changes can be carried out based on design requirement etc. without departing from the scope of the subject in the invention.

For example, in embodiment as above, backrest rear support part 40 is integrally formed with backrest 50, but Backrest rear support part 40 and backrest 50 can also be made split part.

Industrial applicibility

According to above-mentioned chair, in occupant using in the case of making the action that dorsad rear is toppled over, the posture can be followed.

Description of reference numerals

1st, 101-chair

10-foot body

20th, 120-back support body

40th, 140-backrest rear support part

41st, 141-lower connecting part

42-deformation permission portion

43-top connecting portion

- a pair of connection sheets of 43A, 43B

50-backrest

50A-backrest body

51-support face piece

52-upper frame

53A, 53B (53)-vertical frame portion

56A, 56B (56)-top component

57A, 57B (57)-lower component

61-the first annulus

62-the second annulus

Claims (6)

1. a kind of chair, which possesses foot body, back support body and backrest body,
The back support body is supported by the foot body;
The backrest body is supported by the back support body, and supports the back of the body of occupant;
The backrest body possesses backrest and backrest rear support part;
The backrest has support face piece and an a pair vertical frame portions, and the support face piece bears the back of the body of the occupant, and have being capable of root According to the pliability deformed by the back of the body, the pair of vertical frame portion is provided with the support face piece, by by the support face piece effect Separate on the width of power elastically deformable;
The backrest rear support part connects the vertical frame portion in the vertical direction;
The backrest is supported by the backrest rear support part, supports the back of the body of the occupant;
The backrest rear support part is supported by the back support body;
The backrest rear support part has lower connecting part, deformation permission portion and top connecting portion,
The lower connecting part is connected with the bottom that frame portion is indulged described in the back support body and a pair;
The deformation permission portion extends upward from the lower connecting part, and can act on institute according to by the back of the body of the occupant The load for stating backrest carries out elastic deformation;
The top connecting portion extends upward from the upper end in the deformation permission portion, and is connected with the backrest in upper end;
The lower connecting part of the backrest rear support part, the deformation permission portion, the top connecting portion and The vertical frame portion is integrally formed.
2. chair according to claim 1, it is characterised in that the top connecting portion is with upward gradually forwards Incline.
3. chair according to claim 1, it is characterised in that the top connecting portion has a pair of connection sheets, described one Connection sheet is connected with the deformation permission portion in lower end, and by with upward and it is separated from one another in the way of be formed as V words Shape, the upper end of the pair of connection sheet are connected with the backrest.
4. chair according to claim 2, it is characterised in that the top connecting portion has a pair of connection sheets, described one Connection sheet is connected with the deformation permission portion in lower end, and by with upward and it is separated from one another in the way of be formed as V words Shape, the upper end of the pair of connection sheet are connected with the backrest.
5. the chair according to any one in Claims 1 to 4, it is characterised in that
The vertical frame portion has lower component and top component,
The lower end of the lower component is connected with the lower connecting part, and is formed as with gradually inclining forwards upward Tiltedly;
The top component extends upward from the lower component, and is formed as with upward and to than the lower component Incline rearward relatively, be connected with the top connecting portion in upper end.
6. chair according to claim 5, it is characterised in that the bottom of the support face piece is connected with the lower component, Top is connected with the top component.
CN201380054080.2A 2012-10-18 2013-10-17 Chair CN104736017B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2012230929 2012-10-18
JP2012-230929 2012-10-18
PCT/JP2013/078166 WO2014061732A1 (en) 2012-10-18 2013-10-17 Chair

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CN104736017A CN104736017A (en) 2015-06-24
CN104736017B true CN104736017B (en) 2017-04-05

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Application Number Title Priority Date Filing Date
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US (1) US20150265058A1 (en)
EP (1) EP2910148A4 (en)
JP (1) JP6300416B2 (en)
CN (1) CN104736017B (en)
WO (1) WO2014061732A1 (en)

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Also Published As

Publication number Publication date
US20150265058A1 (en) 2015-09-24
CN104736017A (en) 2015-06-24
EP2910148A4 (en) 2016-05-25
WO2014061732A1 (en) 2014-04-24
EP2910148A1 (en) 2015-08-26
JPWO2014061732A1 (en) 2016-09-05
JP6300416B2 (en) 2018-03-28

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