CN104736017A - Chair - Google Patents
Chair Download PDFInfo
- Publication number
- CN104736017A CN104736017A CN201380054080.2A CN201380054080A CN104736017A CN 104736017 A CN104736017 A CN 104736017A CN 201380054080 A CN201380054080 A CN 201380054080A CN 104736017 A CN104736017 A CN 104736017A
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- CN
- China
- Prior art keywords
- backrest
- occupant
- component
- vertical frame
- chair
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C5/00—Chairs of special materials
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
- A47C7/445—Support 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
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
- A47C7/445—Support 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
- A47C7/4454—Support 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 of torsion type
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
A chair (1) provided with a leg body (10), a backrest support body (20) supported by the leg body (10), and a backrest body (50A) for supporting the back of the seat occupant, the backrest body (50A) being supported by the backrest support body (20). The backrest body (50A) is provided with: a backrest (50) having an upholstery material (51) which receives the back of the seat occupant and which is flexible so as to be capable of deforming in accordance with the back, and a pair of vertical frame parts (53A, 53B) to which the upholstery material (51) is attached, the pair of vertical frame parts (53A, 53B) being set apart from each other in the width direction and being capable of being elastically deformed by the force applied from the upholstery material (51); and a backrest rear support member (40) for linking the vertical frame parts (53A, 53B) in the vertical direction.
Description
Technical field
The present invention relates to a kind of chair.
The application, based on No. 2012-230929, the Japanese patent application applied on October 18th, 2012 also CLAIM OF PRIORITY, quotes its content at this.
Background technology
For chair, the back having pin body as basic structure, be arranged at the seat portion on the top of this pin body and support the occupant occupying this portion, generally there will be a known various structure.
Such as, as the supporting structure at the back of formation chair, propose the chair that one has back side components (back member) and arm (arm), wherein, described arm extends upward from pin body, and the part be separated in the direction of the width the rear surface of back side components from rear supports (with reference to following patent document 1).
In addition, also proposed a kind of chair possessing backrest and back of the body pillar, wherein, described backrest has the backboard of the back of the body framework be made up of upper frame, lower frame, left frame portion and right frame portion and the inside entering this back of the body framework, and described back of the body pillar supports left frame portion and right frame portion (with reference to the following patent document 2) of this backrest from rear.
In this chair, by the back rest supported by back of the body pillar, backboard reliably can support the back of the body of occupant.
Prior art document
Patent document
Patent document 1: United States Patent (USP) No. 7249802 description
Patent document 2: Japanese Patent Publication 2009-112729 publication
Summary of the invention
(1) technical problem that will solve
But in the structure described in above-mentioned patent document 1, even if by occupant to back side components effect power backward, because back side components is reliably supported by the axial force of arm, therefore, back side components is suppressed to the distortion in direction outside surface.Thus, even if occupant adopts the posture making rear dorsad topple over, be also difficult to be deformed into the back of the body of occupant is rearward toppled over significantly.
In addition, in the structure described in above-mentioned patent document 2, because back of the body pillar supports left frame portion and right frame portion, therefore, even if by occupant to backboard effect power backward, the distortion in left frame portion and right frame portion is also limited, and the distortion being arranged at the backboard in left frame portion and right frame portion is also restricted.Thus, even if occupant adopts the posture making rear dorsad topple over, be also difficult to be deformed into the back of the body of occupant is rearward toppled over significantly.Therefore, in the chair described in patent document 1 and 2, there is the action that occupant freely can not carry out rear dorsad is significantly toppled under the state taken a seat, the problem that the change of posture is such can not be followed.
The present invention completes in view of the above problems, provides a kind of and adopts when occupant the chair following this posture when the action that rear is dorsad toppled over.
(2) technical scheme
(1) according to the 1st aspect of the present invention, chair possesses pin body, back support body and backrest body.Described back support body is supported by pin body.Described backrest body is supported by this back support body, the back of the body of supporting occupant.Described backrest body possesses backrest and backrest rear support parts, wherein, described backrest has support face part and a pair vertical frame portion, described support face part bears the back of the body of described occupant, and have and can carry out the pliability of being out of shape according to this back of the body, described a pair vertical frame portion is provided with this support face part, is passing through to be separated by the width of the power elastically deformable of described support face part effect; Described backrest rear support parts connect described vertical frame portion in the vertical direction.
According to said structure, a pair vertical frame portion load transfer to the support face of the being installed on part that support face part rearward acts on also is separated in the direction of the width by occupant.Be deformed into the elastic deformation by the power by support face part effect in vertical frame portion, while tilted rearward, the support face part be installed between vertical frame portion rearward moves on the whole at width.In addition, because backrest rear support parts connect vertical frame portion in the vertical direction, therefore along with vertical frame portion tilted rearward, backrest rear support parts also make its posture tilted rearward.Thus, if the load of occupant is to the direction effect making backrest topple over towards the rear, then can make the overall tilted rearward of backrest body in the mode of following the action making backrest topple over.
(2) in the chair of above-mentioned (1), described backrest, by described backrest rear support parts carry, supports the back of the body of described occupant.Described backrest rear support parts are supported by described back support body.Described backrest rear support parts also can have lower connecting part, distortion permission portion and top connecting portion.Described lower connecting part is connected with described back support body.Described distortion permission portion extends upward from described lower connecting part, and can act on the load of described backrest according to the back of the body by described occupant and elastic deformation.Described top connecting portion extends upward from the upper end in described distortion permission portion, and is connected with described backrest in upper end.
According to said structure, if by occupant to backrest rearward used load, then the load transfer of occupant is to the backrest rear support parts supporting backrest.Now, be arranged in backrest rear support parts and lower connecting part that back support body connects with and the top connecting portion that is connected of backrest between distortion permission portion, carry out elastic deformation in the mode along with tilted rearward upward and gradually.Together with being out of shape with this distortion permission portion, its posture tilted rearward significantly can be made by the backrest of backrest rear support parts carry.
In addition, place closer to the top of the distortion permission portion of tilted rearward is being provided with top connecting portion.Thus, along with distortion permission portion tilted rearward, top connecting portion can maintain the state that upper end is connected with backrest, rearward moves on one side.Thus, if the load of occupant is to the direction effect making backrest topple over towards the rear, then backrest tilted rearward can be made in the mode of following the action making backrest topple over.
(3) in the chair of above-mentioned (2), described top connecting portion can be also formed as along with forwards tilting upward and gradually.
According to said structure, owing to being formed as top connecting portion along with forwards tilting upward and gradually, therefore, top connecting portion self distortion in the longitudinal direction can be suppressed to support the load of occupant, and the backrest be connected with top connecting portion also reliably can support the load of occupant.
On the other hand, by the distortion of distortion permission portion, can make according to the load of occupant the backrest tilted rearward that is connected with the lower connecting part of backrest rear support parts and top connecting portion.
(4) in the chair of above-mentioned (2) or (3), also can be that described top connecting portion has a pair brace, this is connected with described distortion permission portion in lower end brace, and with along with upward and mode separated from one another is formed as V shape, the upper end of described a pair brace is connected with described backrest.
According to said structure, be connected with backrest by the upper end of a pair brace, can reliably support by occupant the load of backrest to width side or opposite side effect.
(5) in the chair in above-mentioned (2) to (4) described in any one, also can be that described vertical frame portion has lower component and top component, wherein, the lower end of described lower component is connected with described lower connecting part, and be formed as along with forwards tilting gradually upward, described top component is formed as extending upward from this lower component, and along with to tilting relatively rearward than described lower component, being connected with described top connecting portion in upper end upward.
According to said structure, because lower component is along with tilting upward and forwards, therefore, it is possible to suppress the distortion of this lower component self, reliably support the load of occupant.On the other hand, because top component is along with upward and to inclination relatively more more rearward than lower component, therefore, it is possible to follow according to the load tilted rearward of occupant.
Herein, the distortion of the lower component in the vertical frame portion be connected with backrest rear support parts on top and bottom is suppressed, and can the range tilt of the above-below direction of component up.Thus, if backrest rear support parts tilted rearward, then top component is with the inclined at inclination angles larger than backrest rear support parts.
Therefore, it is possible to the deflection in the distortion permission portion of backrest rear support parts is suppressed to Min., and vertical frame portion can be made rearward significantly to tilt, more effectively follow the back of the body of occupant.Therefore, even if when making moment concentrate when being out of shape permission portion repeated deformation, also damage, breakage can not be had.
(6) in the chair of above-mentioned (5), also can be that the bottom of described support face part is connected with described lower component, top be connected with described top component.
According to said structure, if by occupant to backrest used load, then the support face part of backrest is out of shape along the back of the body of occupant, and the distortion permission portion of supporting in the backrest rear support parts of backrest carries out elastic deformation.Thus, if the direction effect that the load of occupant makes backrest rearward topple over, then backrest tilted rearward can be made to follow the action making backrest topple over, and can bear in the mode of the back of the body encasing occupant under the state of tilted rearward.
(3) beneficial effect
According to above-mentioned chair, adopt when the action that rear is dorsad toppled over when occupant and follow this posture.
Accompanying drawing explanation
Fig. 1 is the stereogram of the chair observing one embodiment of the present invention obliquely from the front.
Fig. 2 is the stereogram on the chair top observing one embodiment of the present invention from rear.
Fig. 3 A is the side view of chair when usual of one embodiment of the present invention.
Fig. 3 B is the side view of chair when occupant makes that rear is toppled over dorsad of one embodiment of the present invention.
Fig. 4 is the stereogram of the chair observing one embodiment of the present invention from front.
Fig. 5 is the side view of the chair of one embodiment of the present invention.
Fig. 6 A is the P-P sectional view of chair Fig. 4 when usual of one embodiment of the present invention.
Fig. 6 B is the P-P sectional view of the Fig. 4 under the state that takes a seat occupant of the chair of one embodiment of the present invention.
Fig. 7 A is the stereogram of chair when usual from top view one embodiment of the present invention.
Fig. 7 B is from top view the chair of one embodiment of the present invention, the stereogram of the situation of the posture that occupant adopts side in the width direction rearward to turn one's head.
Fig. 8 is the stereogram on the chair top of the variation of observing one embodiment of the present invention from rear.
Detailed description of the invention
Below, be described with reference to the chair of accompanying drawing to one embodiment of the present invention.
As shown in Figure 1, the chair 1 of present embodiment possesses pin body 10, back support body 20, seat portion 30, backrest rear support parts 40 and backrest 50.
Pin body 10 is arranged on the F of floor.Back support body 20 is supported by pin body 10.Seat portion 30 is arranged at back support body 20, and can seat person take a seat.Backrest rear support parts 40 are supported by back support body 20.Backrest 50 is supported by backrest rear support parts 40, and supports the back of the body of occupant.Below each structure is described in detail.In addition, in the following description, direction occupant taken a seat, disseated is set to fore-and-aft direction, occupant is taken a seat side and is set to front, opposite side is set to rear, in addition, also the direction in the horizontal plane vertical with fore-and-aft direction is set to width, and the side leaving chair is in the width direction set to side.
(pin body)
Pin body 10 possesses multiple foot lever 12 and socle 13, and wherein, described multiple foot lever 12 is provided with the castor 11 that can rotate on the F of floor; Described socle 13 is supported by the plurality of foot lever 12.Multiple foot lever 12 is configured to radial, and is connected to each other at cardinal extremity, is provided with castor 11 in the front end of each foot lever 12.
Socle 13 bottom is connected with the cardinal extremity of multiple foot lever 12, and erects setting upward.In addition, be provided with supporting base 14 on the top of this socle 13, this supporting base 14 is built-in with and can makes the reclining mechanism of back support body 20 tilted rearward (not shown).
(back support body)
Back support body 20 have a pair forward arm 21, a pair to upper arm parts 22 and a pair arm 23 backward, wherein, the base portion of described a pair arm 21 is forward pivotally connected to width two side of supporting base 14; Described a pair base portion to upper arm parts 22 from this arm 21 forward extends upward, and supporting base portion 30; Described a pair backward arm 23 rearward extend from the base portion of this arm 21 forward.
As shown in Figure 2, described a pair backward arm 23 by being configured to move closer to each other along with towards rear, and to be connected to each other in rear end, thus be configured to downward V shape as a whole.The bottom of backrest rear support parts 40 described later is fixed in the rear end of a pair arm 23 backward.
In addition, as shown in Figure 1, back support body 20 is provided with the handrail 26 extended upward from side.
(seat portion)
As shown in Fig. 3 A and Fig. 3 B, seat portion 30 is supported with its front portion of the mode can slided in the longitudinal direction relative to supporting base 14, and be pivotally connected to back support body 20 to upper arm parts 22.Consist of, along with utilizing the reclining mechanism of supporting base 14 to make back support body 20 tilted rearward, seat portion 30 relatively rearward moves relative to supporting base 14, and makes rear side inclination movement downwards.
(backrest rear support parts)
As shown in Figure 2, backrest rear support parts 40 have lower connecting part 41, distortion permission portion 42 and top connecting portion 43, and wherein, described lower connecting part 41 is connected with back support body 20; Described distortion permission portion 42 extends upward from this lower connecting part 41; Described top connecting portion 43 is configured to along with the upper end from this distortion permission portion 42 is upward gradually to width outer expandable.
Lower connecting part 41 is formed with the recess (not shown) chimeric with the rear end of a pair of back support body 20 arm 23 backward at Lower rear surface, and a pair arm 23 is chimeric with this recess backward.Lower connecting part 41 is fixed by screwing up of carrying out of such as bolt, nut (not shown) on the top of this recess and back support body 20.Further, lower connecting part 41 is connected with backrest 50 in lower end.
As shown in Fig. 1, Fig. 4 and Fig. 5, the lower end in distortion permission portion 42 is connected with lower connecting part 41 and configures upward, and upper end is connected with top connecting portion 43.In addition, the length dimension of width in distortion permission portion 42 along with diminishing upward and gradually, along with from midway upward the length dimension of width again become large.
This distortion permission portion 42 does not form rib before it, and makes the structure according to the easy elastic deformation of load acted on back to backrest 50 by occupant.
Even if arrange rib on the surface in distortion permission portion 42, also can by the adjustment distortion material in permission portion 42 or thickness etc., and make can according to the structure of elastic deformation by the load back to backrest effect of occupant.
Top connecting portion 43 is formed as lower end and is connected with distortion permission portion 42, and along with upward gradually to width outer expandable, simultaneously along with forwards tilting gradually upward.
In the present embodiment, this top connecting portion 43 has a pair brace 43A, 43B, it configures along with the mode be separated outside width gradually upward and each other, and upper end is connected with backrest 50, is formed as V shape on the whole by a pair brace 43A, 43B.
Above-mentioned lower connecting part 41, distortion permission portion 42 and form a pair brace 43A of top connecting portion 43,43B is integrally formed, and the mode rearward protruded when backrest rear support parts 40 entirety is observed with side-looking is bent to form.
That is, lower connecting part 41 while bending, as a whole along with upward and towards back sweep.In addition, a pair brace 43A, 43B forming top connecting portion 43 while bending, along with tilting upward and toward the front.Top connecting portion 43, while bending, is connected with lower connecting part 41 by distortion permission portion 42.
(backrest)
As shown in Figure 2, backrest 50 has support face part 51, upper frame 52 and a pair vertical frame portion 53A, 53B (53), and wherein, described support face part 51 bears the back of the body of occupant; Described upper frame 52 is provided with this support face part 51, and is connected with the top connecting portion 43 of backrest rear support parts 40; Described a pair vertical frame portion 53A, 53B (53) is connected with this upper frame 52, and is provided with support face part 51.
Support face part 51 bears the back of the body of occupant, can form by having according to the flexual parts of the gesture distortion of the back of the body.Specifically, formed by netted material in the present embodiment, flexibly stretched by structure wire rod into the net, as a whole can flexibly deflection deformation.This support face part 51 is arranged at the part of being indulged frame portion 53 surrounded by upper frame 52 and a pair, and its end winding support is in these upper frames 52 and a pair vertical frame portion 53.
Upper frame 52 extends in the width direction, and its two ends are connected with the upper end of a pair brace 43A, 43B of top connecting portion 43 respectively, and the upper end of indulging frame portion 53A, 53B respectively with a pair is connected.
A vertical frame portion 53A has lower component 57A and top component 56A, and wherein, described top component 56A is connected with the upper end of this lower component 57A, and can the elastic deformation by the power acted on by support face part 51.Similarly, the vertical frame portion 53B of opposite side also has lower component 57B and top component 56B, and wherein, described top component 56B is connected with the upper end of this lower component 57B, and can the elastic deformation by the power acted on by support face part 51.
As shown in figures 2 and 5, the lower end of lower component 57A, 57B is connected with the lower connecting part 41 of backrest rear support parts 40, and is formed as along with upward gradually forwards and to width outer expandable.In addition, lower component 57A, 57B are formed as sectional dimension respectively along with diminishing upward.
Top component 56A, 56B is configured to can the flexibly torsional deflection according to the load of the back of the body effect by occupant, and can flexibly deflection deformation.
Above this, the lower end of component 56A, 56B connects with corresponding lower component 57A, 57B respectively, upper end is connected with a pair brace 43A, 43B of upper frame 52 and backrest rear support parts 40, and is formed as along with upward and to inclination relatively more more rearward than lower component 57A, 57B.
In the present embodiment, top component 56A, 56B are formed as the upper end tilted rearward gradually upward along with component 57A, 57B from below.
Like this, vertical frame portion 53A, 53B are formed through lower component 57A, 57B along with from bottom upward gradually toward the front, and be formed through top component 56A, 56B along with the connecting portion from this lower component 57A, 57B and top component 56A, 56B upward and gradually toward the front, vertical frame portion 53A, 53B entirety is bent to form in mode convexly toward the front.
As shown in Figure 2, above-mentioned backrest rear support parts 40 and vertical frame portion 53 observe with side-looking and are integrally formed as ring-type.In the present embodiment, be made up of the top component 56A and lower component 57A of the lower connecting part 41 of backrest rear support parts 40, distortion 42, one, permission portion brace 43A, a vertical frame portion 53A and observe the first annulus 61 in the form of a ring with side-looking.
In addition, be made up of the top component 56B and lower component 57B of the lower connecting part 41 of backrest rear support parts 40, distortion permission portion 42, another brace 43B, another vertical frame portion 53B and observe the second annulus 62 in the form of a ring with side-looking.
These first annulus 61 and the second annulus 62 are connected by lower connecting part 41 and distortion permission portion 42, and integrally formed as a whole.In addition, upper frame 52 is also integrally formed in the mode connecting the first annulus 61 and the respective upper end of the second annulus 62 respectively.
That is, in the present embodiment, each portion of backrest rear support parts 40 and the upper frame 52 of backrest 50 and a pair vertical frame portion 53A, 53B integrally formed.
In addition, backrest body 50A is made up of backrest rear support parts 40 and backrest 50.That is, backrest body 50A is supported by back support body 20, the back of the body of supporting occupant.
Then, when occupying the seat portion 30 of chair 1 as constructed as above to occupant, the backrest rear support parts 40 of chair 1 and the action of backrest 50 are described.
The solid line of Fig. 4 and Fig. 6 A represent that occupant occupies a portion 30, and do not rest on the double dot dash line of the chair 1, Fig. 4 of the state on backrest 50 and Fig. 6 B represents that occupant rests on the chair 1 of the state on backrest 50.
If occupant occupies a portion 30, masterpiece then from occupant is used for the support face part 51 of backrest 50, because this power causes the wire rod of the net forming support face part 51 flexibly to stretch, make this support face part 51 on the whole along the back of the body of occupant thus, and with the mode arc-shaped ground elastic deformation that width substantially central portion is given prominence to towards rear.
In addition, vertical frame portion 53A, 53B power by being acted on by support face part 51 of support face part 51 is fixed with, with towards rearward mode elastic deformation inside its width, and in mode close to each other to width medial movement.
Along with this vertical frame portion 53A, 53B elastic deformation, support face part 51 can be deformed into the width substantially central portion arc-shaped outstanding towards rear further, and backrest 50 is supported by backrest rear support parts 40.
And then, when occupant rests on backrest 50 significantly, as shown in the double dot dash line of Fig. 5, the distortion permission portion 42 in the backrest rear support parts 40 be connected with vertical frame portion 53A, 53B can act on the load on backrest 50 along with the back of the body by occupant and carry out elastic deformation.Thus, distortion permission portion 42 can centered by its lower end, along with the mode of tilted rearward upward and is gradually out of shape.Along with the distortion in distortion permission portion 42, the top connecting portion 43 be configured at above this distortion permission portion 42 rearward moves, and the backrest 50 be connected with this top connecting portion 43 can tilted rearward further.
In addition, when occupant adopts the posture of rearward turning one's head from the width side of backrest 50 from the state shown in Fig. 7 A, as shown in Figure 7 B, load from occupant is partial to the width side of backrest 50 and acts on, and makes the load of vertical frame portion 53B torsional deflection to amesiality vertical frame portion 53B effect.
Here, the top component 56B of vertical frame portion 53B is configured to power by being acted on by backrest 50 and torsional deflection.In addition, because brace 43A, 43B are formed as being separated width along with diminishing downward, and be bonded with each other and be connected with distortion permission portion 42, therefore, distortion permission portion 42 is configured to the structure of the torsional deflection promoting top component 56B.Thus, component 56B in top is to follow the mode side torsional deflection backwards of the back of the body of occupant according to the load of occupant.
In addition, because the brace 43B be connected with top component 56B is configured to conjugate along with the torsion of top component 56B, therefore, it is along with vertical frame portion 53B is towards the torsion side displacement backward of rear side side.
The support face part 51 of backrest 50 is because of the load from occupant, and the wire material forming the net of this support face part 51 flexibly stretches, to encase the mode elastic deformation of the back of the body of occupant.
Like this, top component 56B, brace 43B and support face part 51 are to follow the back of the body of occupant, the distortion of shoulder, and to encase the above-mentioned back of the body, the mode of shoulder is out of shape.
In addition, when occupant adopts the posture of rearward turning one's head from the width opposite side of backrest 50, action is carried out similarly.
In the chair 1 formed like this, if by occupant to backrest 50 rearward used load, then the load transfer of occupant extremely supports the top connecting portion 43 of the backrest rear support parts 40 of the upper frame 52 of backrest 50.Now, in backrest rear support parts 40 be arranged at and lower connecting part 41 that back support body 20 connects with and the top connecting portion 43 that is connected of backrest 50 between distortion permission portion 42 with along with the mode elastic deformation of tilting towards the rear upward and gradually.Together with the distortion in this distortion permission portion 42, can be made its posture tilted rearward significantly by the backrest 50 that backrest rear support parts 40 support.
In addition, the place closer to the top of distortion permission portion 42 than tilted rearward is provided with top connecting portion 43.Thus, along with distortion permission portion 42 tilted rearward, top connecting portion 43 can maintain the state that upper end is connected with backrest 50, rearward moves on one side.Thus, if the load of occupant is to the direction effect making backrest rearward topple over, then backrest 50 tilted rearward can be made in the mode of following the action making backrest 50 topple over.
In addition, in the normal state, top connecting portion 43 is formed as along with forwards tilting gradually upward, therefore, top connecting portion 43 self distortion in the longitudinal direction can be suppressed, the load of supporting occupant, and the backrest 50 be connected with top connecting portion 43 also reliably can support the load of occupant.
On the other hand, occupant topples over to make rear dorsad, if make the load being greater than usual state act on backrest backward, then distortion allows that portion 42 is out of shape because of this load, thus, make the backrest 50 that is connected with the lower connecting part 41 of backrest rear support parts 40 and top connecting portion 43 according to the load of occupant tilted rearward, it can be made to follow make the action of the back sweep dorsad of occupant.
On the other hand, be connected with backrest 50 by the upper end of a pair brace 43A, 43B of top connecting portion 43, can reliably support by occupant the load of backrest 50 to width side or opposite side effect.
In addition, because lower component 57A, 57B are along with tilting upward and forwards, therefore, it is possible to suppress the distortion of this lower component 57A, 57B self, the load of occupant is reliably supported.
On the other hand, because top component 56A, 56B are formed as the upper end tilted rearward gradually upward along with component 57A, 57B from below, therefore, it is possible to according to the load tilted rearward of occupant, follow the action of the back sweep dorsad making occupant.
Here, the lower component 57A of the backrest 50 be connected with lower connecting part 41 and the top connecting portion 43 of backrest rear support parts 40 on top and bottom, the distortion of 57B are suppressed, the range tilt of the above-below direction of component 56A, 56B up.Thus, if backrest rear support parts 40 tilted rearward, then top component 56A, 56B is with the inclined at inclination angles larger than backrest rear support parts 40.
Therefore, it is possible to the deflection in the distortion permission portion 42 of backrest rear support parts 40 is suppressed to Min., and backrest 50 can be made rearward significantly to tilt, more effectively follow the back of the body of occupant.Therefore, even if when making moment concentrate when being out of shape permission portion 42 repeated deformation, also damage, breakage can not be had.
In addition, for the power rearward acted on by occupant, if the back of the body of occupant is born by the support face part 51 of backrest 50, then the load of occupant is passed to upper frame 52 from support face part 51 and indulges frame portion 53A, 53B a pair.Upper frame 52 connects a pair brace 43A, 43B being supported on backrest rear support parts 40, and these backrest rear support parts 40 are supported by back support body 20.Thereby, it is possible to reliably support the load from occupant by upper frame 52, backrest rear support parts 40 and back support body 20.
On the other hand, top component 56A, 56B reason due to be connected with the width both ends of upper frame 52 a pair vertical frame portion 53A, 53B supports the power and flexibly deflection deformation that face part 51 acts on, therefore, can be out of shape in the mode of the back of the body of following occupant according to the load of occupant, bear in the mode encasing the back of the body together with support face part 51.Therefore, occupant can take a seat with stable state.
Further, when occupant adopts the posture that side is rearward later so in the width direction, load from occupant is partial to the width side of backrest 50 and acts on, and makes the load of vertical frame portion 53A, 53B torsional deflection to amesiality vertical frame portion 53A, 53B effect.The power acted on due to component 56A, 56B reason support face, top part 51 of vertical frame portion 53A, 53B and torsional deflection, therefore, can according to the load of occupant to follow the back of the body of occupant, the mode of the distortion of shoulder is out of shape, bear in the mode encasing the back of the body together with the part of support face, make backrest 50 tilted rearward.
In addition, if be passed to a pair vertical frame portion 53A, 53B from the load of occupant from the support face part 51 of backrest 50, then top component 56A, 56B torsional deflection of vertical frame portion 53A, 53B.A pair brace 43A, 43B being connected with top component 56A, 56B conjugate along with the torsional deflection of top component 56A, 56B.Thus, when adopting the posture that side is rearward later so in the width direction, above side while component 56A, 56B torsional deflection, brace 43A, 43B displacement of side, can bear in the mode encasing the back of the body together with the part of support face, therefore, it is possible to stably support under the state that follow the back of the body of occupant, the distortion of shoulder.
Like this, indulge top component 56A, the 56B of frame portion 53A, 53B, support face part 51 and brace 43A, 43B and can follow the back of the body of occupant, the distortion of shoulder, tilted rearward, stably support the described back of the body, shoulder on one side.
On the other hand, lower component 57A, the 57B of vertical frame portion 53A, 53B reliably support the waist etc. below the back of the body of occupant together with support face part 51.Thus, when adopting the posture that side is rearward later so in the width direction, lower component 57A, 57B can support the waist of occupant together with support face part 51.
(variation)
Below, the chair 101 of Fig. 8 to the variation of above-mentioned embodiment is used to be described.
In chair 1, a pair of back support body 20 backward arm 23,23 be connected with the bottom of backrest rear support parts 40.On the other hand, in the chair 101 of variation, a pair of back support body 120 backward arm 123,123 be connected with lower component 57A, the 57B of a pair vertical frame portion 53A, 53B.That is, indulge frame portion 53A, 53B to be supported by back support body 120.
Specifically, the top of arm 123,123 is formed as along with upward gradually toward the front in the same manner as lower component 57A, 57B backward.The top of this arm 123,123 is backward connected with lower component 57A, 57B.
In addition, the surface of the lower connecting part 141 of backrest rear support parts 140 is not formed the recess for installing a pair arm 23,23 backward.
In the chair 101 formed like this, the load rearward acted on support face part 51 by occupant, is passed to the support face of being installed on part 51 and indulges frame portion 53A, 53B a pair that is separated in the direction of the width.While the power acted at vertical frame portion 53A, 53B reason support face part 51 and elastic deformation the mode of tilted rearward are out of shape, the support face part 51 be installed between vertical frame portion 53A, 53B rearward moves on the whole at width.In addition, indulge frame portion 53A, 53B because backrest rear support parts 140 connect in the vertical direction, therefore along with vertical frame portion 53A, 53B tilted rearward, backrest rear support parts 140 also make its posture tilted rearward.Thus, if the load of occupant acts on the direction making backrest 50 topple over towards the rear, then can make the overall tilted rearward of backrest 50 in the mode of following the action making backrest body 50A topple over.
In addition, when occupant occupies the seat portion 30 of chair 101, identical with embodiment as above, masterpiece from occupant is used for the support face part 51 of backrest 50, because this power causes the line material of the net forming support face part 51 flexibly to stretch, thus make this support face part 51 entirety along the back of the body of occupant, and with the mode arc-shaped ground elastic deformation that width substantially central portion is given prominence to towards rear.
In addition, vertical frame portion 53A, 53B of being fixed with support face part 51, by the power acted on by support face part 51, make towards rearward mode elastic deformation inside its width, and in mode close to each other to width medial movement.
Along with this vertical frame portion 53A, 53B elastic deformation, support face part 51 can be deformed into the arc-shaped that width substantially central portion is rearward given prominence to further, and backrest 50 is supported by backrest rear support parts 140.
In addition, when occupant adopts the posture from the width side of backrest 50 is rearward later such, identical with embodiment as above, load from occupant is partial to the width side of backrest 50 and acts on, and makes the load of vertical frame portion 53A, 53B torsional deflection to amesiality vertical frame portion 53A, 53B effect.The power acted on due to component 56A, 56B reason support face, top part 51 of vertical frame portion 53A, 53B and torsional deflection, therefore, can according to the load of occupant to follow the back of the body of occupant, the mode of the distortion of shoulder is out of shape, and bear in the mode encasing the back of the body together with the part of support face, make backrest 50 tilted rearward.
In addition, a pair brace 43A, 43B being connected with top component 56A, 56B of vertical frame portion 53A, 53B conjugate along with the torsional deflection of top component 56A, 56B.Thus, when adopting the posture that side is rearward later so in the width direction, above side while component 56A, 56B torsional deflection, brace 43A, 43B displacement of side, can bear in the mode encasing the back of the body together with the part of support face, therefore, it is possible to stably support under the state that follow the back of the body of occupant, the distortion of shoulder.
Like this, indulge top component 56A, the 56B of frame portion 53A, 53B, support face part 51 and brace 43A, 43B and can follow the back of the body of occupant, the distortion of shoulder, tilted rearward, stably support the described back of the body, shoulder on one side.
On the other hand, lower component 57A, the 57B of vertical frame portion 53A, 53B reliably support the waist etc. below the back of the body of occupant together with support face part 51.Thus, when adopting the posture that side is rearward later so in the width direction, lower component 57A, 57B can support the waist of occupant together with support face part 51.
In addition, lower component 57A, 57B and the top of arm backward 123,123 that is connected with lower component 57A, 57B are along with tilting upward and forwards.Thus, chair 101 suppresses the distortion of lower component 57A, 57B and arm 123,123 self backward, reliably supports the load of occupant.In addition, because the distortion of lower component 57A, 57B and the parts self of arm 123,123 is backward suppressed, therefore, it is possible to maintain the state be securely connected each other.
In addition, the various shapes, combination etc. of the action step illustrated in the above-described embodiment or each structure member are only an example, can carry out various change without departing from the scope of the subject in the invention based on designing requirement etc.
Such as, in embodiment as above, backrest rear support parts 40 and backrest 50 are integrally formed, but also backrest rear support parts 40 and backrest 50 can be made a point body component.
Industrial applicibility
According to above-mentioned chair, when occupant adopts the action making rear dorsad topple over, this posture can be followed.
Description of reference numerals
1,101-chair
10-pin body
20,120-back support body
40,140-backrest rear support parts
41,141-lower connecting part
42-distortion permission portion
43-top connecting portion
43A, 43B-a pair brace
50-backrest
50A-backrest body
51-support face part
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 chair, it possesses pin body, back support body and backrest body,
Described back support body is supported by this pin body;
Described backrest body is supported by this back support body, and supports the back of the body of occupant;
Described backrest body possesses backrest and backrest rear support parts;
Described backrest has support face part and a pair vertical frame portion, described support face part bears the back of the body of described occupant, and have and can carry out the pliability of being out of shape according to this back of the body, described a pair vertical frame portion is provided with this support face part, by being separated by the width of the power elastically deformable of described support face part effect;
Described backrest rear support parts connect described vertical frame portion in the vertical direction.
2. chair according to claim 1, is characterized in that,
Described backrest, by described backrest rear support parts carry, supports the back of the body of described occupant;
Described backrest rear support parts are supported by described back support body;
Described backrest rear support parts have lower connecting part, distortion permission portion and top connecting portion,
Described lower connecting part is connected with described back support body;
Described distortion permission portion extends upward from this lower connecting part, and elastic deformation is carried out in the load that can act on described backrest according to the back of the body by described occupant;
Described top connecting portion extends upward from the upper end in this distortion permission portion, and is connected with described backrest in upper end.
3. chair according to claim 2, is characterized in that, described top connecting portion is along with forwards tilting gradually upward.
4. the chair according to Claims 2 or 3, it is characterized in that, described top connecting portion has a pair brace, described a pair brace is connected with described distortion permission portion in lower end, and with along with upward and mode separated from one another is formed as V shape, the upper end of described a pair brace is connected with described backrest.
5., according to the chair in claim 2 ~ 4 described in any one, it is characterized in that,
Described vertical frame portion has lower component and top component,
The lower end of described lower component is connected with described lower connecting part, and is formed as along with forwards tilting gradually upward;
Described top component extends upward from this lower component, and is formed as along with to tilting relatively rearward than described lower component, being connected with described top connecting portion in upper end upward.
6. chair according to claim 5, is characterized in that, the bottom of described support face part is connected with described lower component, and top is connected with described top component.
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104736017A true CN104736017A (en) | 2015-06-24 |
| CN104736017B CN104736017B (en) | 2017-04-05 |
Family
ID=50488292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380054080.2A Active CN104736017B (en) | 2012-10-18 | 2013-10-17 | Chair |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20150265058A1 (en) |
| EP (1) | EP2910148A4 (en) |
| JP (1) | JP6300416B2 (en) |
| CN (1) | CN104736017B (en) |
| WO (1) | WO2014061732A1 (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014220695A1 (en) * | 2014-10-13 | 2016-04-28 | Haworth Gmbh | Chair, especially office chair |
| CN107708491B (en) * | 2015-04-13 | 2022-02-22 | 斯迪尔科斯公司 | Seating arrangement |
| US11259637B2 (en) | 2015-04-13 | 2022-03-01 | Steelcase Inc. | Seating arrangement |
| US10194750B2 (en) * | 2015-04-13 | 2019-02-05 | Steelcase Inc. | Seating arrangement |
| US10463153B2 (en) | 2016-06-09 | 2019-11-05 | Steelcase Inc. | Seating arrangement |
| CN109788851B (en) | 2016-09-29 | 2022-05-27 | 斯迪尔科斯公司 | Compliant seat structure |
| JP2018075885A (en) * | 2016-11-07 | 2018-05-17 | トヨタ自動車株式会社 | Vehicle seat structure |
| USD827352S1 (en) | 2017-05-25 | 2018-09-04 | Steelcase Inc. | Seating arrangement |
| CA3072085A1 (en) * | 2017-08-10 | 2019-02-14 | Hni Corporation | Chairs including flexible frames |
| JP1607138S (en) * | 2017-09-29 | 2018-06-18 | ||
| JP1607139S (en) * | 2017-09-29 | 2018-06-18 | ||
| US11291305B2 (en) | 2017-12-05 | 2022-04-05 | Steelcase Inc. | Compliant backrest |
| US10813463B2 (en) | 2017-12-05 | 2020-10-27 | Steelcase Inc. | Compliant backrest |
| WO2019204714A1 (en) | 2018-04-19 | 2019-10-24 | Cramer Llc | Chair having pliable backrest and methods for same |
| US10426269B1 (en) | 2018-04-30 | 2019-10-01 | Buzz Seating, Inc. | Chair with appendage accommodations |
| JP7208766B2 (en) * | 2018-10-09 | 2023-01-19 | 株式会社イトーキ | Chair and its manufacturing method |
| CN113507865A (en) | 2019-02-21 | 2021-10-15 | 斯特尔凯斯公司 | Body support assembly and methods for use and assembly thereof |
| CN114502039A (en) | 2019-09-18 | 2022-05-13 | 斯迪尔科斯公司 | Body support member with lattice construction |
| US11357329B2 (en) | 2019-12-13 | 2022-06-14 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
| USD971623S1 (en) * | 2020-06-28 | 2022-12-06 | Tao Yang | Office chair |
| USD950290S1 (en) * | 2021-07-09 | 2022-05-03 | Foshan Zhongyang Furniture Co., Ltd. | Office chair |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2282367Y (en) * | 1997-01-03 | 1998-05-27 | 陈大中 | Folding armchair |
| CN1330907A (en) * | 2000-06-09 | 2002-01-16 | 普罗科德有限公司 | Chair with synchronous swing seat and back |
| JP3118464U (en) * | 2005-11-10 | 2006-01-26 | 株式会社クオリ | Chair backrest stretch structure |
| JP2007143571A (en) * | 2005-10-27 | 2007-06-14 | Kokuyo Co Ltd | Chair |
| JP2010094277A (en) * | 2008-10-16 | 2010-04-30 | Okamura Corp | Chair |
| WO2011157392A1 (en) * | 2010-06-15 | 2011-12-22 | Claudia Plikat | Chair |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3589015B2 (en) * | 1998-03-31 | 2004-11-17 | 株式会社岡村製作所 | Chair backrest support device |
| US6609755B2 (en) * | 2001-06-15 | 2003-08-26 | Hon Technology Inc. | Ergonomic chair |
| GB2414176B (en) | 2002-02-13 | 2006-09-13 | Miller Herman Inc | Tilt chair having a flexible back, adjustable armrests and adjustable seat depth, and methods for the use thereof |
| CA2600312C (en) * | 2005-03-01 | 2014-07-15 | Haworth, Inc. | Chair back with lumbar and pelvic supports |
| JP5002835B2 (en) * | 2005-10-27 | 2012-08-15 | コクヨ株式会社 | Member connection structure |
| US7874619B2 (en) * | 2007-01-29 | 2011-01-25 | Allseating Corporation | Adjustable lumbar support for a chair back |
| WO2008112918A1 (en) * | 2007-03-13 | 2008-09-18 | Hni Technologies Inc. | Dynamic chair back lumbar support system |
| JP5276304B2 (en) | 2007-11-09 | 2013-08-28 | 株式会社内田洋行 | Chair backrest structure |
| JP5543117B2 (en) * | 2009-02-25 | 2014-07-09 | 株式会社岡村製作所 | Chair backrest device |
| US8449037B2 (en) * | 2010-04-13 | 2013-05-28 | Herman Miller, Inc. | Seating structure with a contoured flexible backrest |
| US8408647B2 (en) * | 2010-05-21 | 2013-04-02 | Yao-Chuan Wu | Movable chair backrest |
| CN202135994U (en) * | 2011-06-04 | 2012-02-08 | 陈敏 | Seat back mounting structure |
| TWM414875U (en) * | 2011-06-24 | 2011-11-01 | Fuh Shyan Co Ltd | Elastic leaning and restoration device of lifting back of office chair |
| US9609952B2 (en) * | 2012-05-04 | 2017-04-04 | Itoki Corporation | Chair, especially, office chair |
-
2013
- 2013-10-17 US US14/436,470 patent/US20150265058A1/en not_active Abandoned
- 2013-10-17 JP JP2014542169A patent/JP6300416B2/en active Active
- 2013-10-17 WO PCT/JP2013/078166 patent/WO2014061732A1/en active Application Filing
- 2013-10-17 EP EP13846276.7A patent/EP2910148A4/en not_active Withdrawn
- 2013-10-17 CN CN201380054080.2A patent/CN104736017B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2282367Y (en) * | 1997-01-03 | 1998-05-27 | 陈大中 | Folding armchair |
| CN1330907A (en) * | 2000-06-09 | 2002-01-16 | 普罗科德有限公司 | Chair with synchronous swing seat and back |
| JP2007143571A (en) * | 2005-10-27 | 2007-06-14 | Kokuyo Co Ltd | Chair |
| JP3118464U (en) * | 2005-11-10 | 2006-01-26 | 株式会社クオリ | Chair backrest stretch structure |
| JP2010094277A (en) * | 2008-10-16 | 2010-04-30 | Okamura Corp | Chair |
| WO2011157392A1 (en) * | 2010-06-15 | 2011-12-22 | Claudia Plikat | Chair |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104736017B (en) | 2017-04-05 |
| WO2014061732A1 (en) | 2014-04-24 |
| JP6300416B2 (en) | 2018-03-28 |
| US20150265058A1 (en) | 2015-09-24 |
| JPWO2014061732A1 (en) | 2016-09-05 |
| EP2910148A4 (en) | 2016-05-25 |
| EP2910148A1 (en) | 2015-08-26 |
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