JP2019063167A - Chair - Google Patents

Abstract

To provide a chair which can demonstrate a buffer function in stacking and which can suitably hold the stacking posture of other chairs, in a chair that can be stacked in front and in the rear.SOLUTION: A chair A includes: a seat that is structured rotatably between a use posture in which a sitting person can sit on and a storage posture in which the chair stands on the floor surface; and a support body that can support the seat. The chair is also structured to be stacked with equally structured other chairs A' in front and in the rear on the floor surface. In the support body, there is provided a damper G having an abutment inclination r which is abutted by the support body of other chairs A' in the stacking state and which is capable of regulating movement of other chairs A' in the direction forward or backward and in the lateral direction.SELECTED DRAWING: Figure 12

Description

  The present invention relates to a chair suitably used in an office or the like.

  Conventionally, the seat comprises a seat rotatably configured between a use posture in which a seated person can sit and a storage posture standing up to the floor surface, and a support capable of supporting the seat, Various chairs are known in which other structured chairs can be stacked in the front-rear direction on the floor surface (see, for example, Patent Document 1).

  Some conventional chairs have a support made of synthetic resin attached to a damper.

  However, the conventional damper has been provided only for the purpose of relieving shock and collision noise that may occur due to an instantaneous collision with another chair during stacking.

JP, 2014-104017, A

  The present invention has been made focusing on the above circumstances, and in a chair that can be stacked in the front-rear direction, a chair that can exhibit a cushioning function at the time of stacking and can preferably hold the stacking posture of other chairs To provide.

  That is, the present invention has the following configuration.

  According to the first aspect of the present invention, there is provided a seat rotatably supported between a use posture in which a seated person can sit and a stored posture standing up with respect to a floor surface, and a support capable of supporting the seat. And another chair having the same structure and capable of being stacked in the longitudinal direction on the floor surface, wherein the support of the other chair abuts against the support in the stacking state. It is a chair provided with a damper having an abutting inclined surface capable of restricting forward or backward movement and left and right movement in another chair.

  The invention according to claim 2 is the chair according to claim 1, wherein the support comprises a pair of left and right rear legs, and the dampers are respectively attached to the inner surface of the rear legs. is there.

  Invention of Claim 3 is a chair of Claim 1 or 2 set so that the said contact | abutting inclined surface may face inward, and may be located in the outer side gradually toward downward.

  The invention according to claim 4 is characterized in that the damper has a shape extending in the vertical direction, and the movement restricting portion having the abutting inclined surface, and the buffer portion disposed under the movement restricting portion. The chair according to any one of claims 1 to 3, wherein the cushioning portion is capable of abutting on a support on the other chair in a stacking process.

  The invention according to claim 5 is characterized in that the damper is provided with a positioning portion which is disposed on the movement restricting portion and whose upper end face can be in contact with a downward surface provided on the support. It is a chair described.

  As described above, according to the present invention, it is possible to provide a chair capable of exerting a buffer function at the time of stacking and suitably holding the stacking posture of the other chairs in the chair capable of stacking in the front-rear direction.

1 is a perspective view showing an embodiment of the present invention. The front view in the embodiment. The rear view in the embodiment. The right view in the embodiment. The top view in the embodiment. The bottom view in the embodiment. The perspective view in the embodiment. The right view in the embodiment. The disassembled perspective view in the embodiment. The partially expanded perspective view in the embodiment. The partial enlarged front view for description of the damper in the embodiment. The part expansion rear view for description of the damper in the embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  This embodiment is an application of the present invention to a chair A in which another chair A 'having the same structure is configured to be stackable in the front-rear direction on the floor surface.

  The chair A includes a support B having a leg component E formed by aluminum die casting, a seat C rotatably supported by the support B, and a back plate D supported by the support B. Have. Each component will be described in detail below.

<< Support B >>
The support B is a pair of right and left leg components E formed by aluminum die casting which is a pair on the right and left and injection molded, and a joint which intervenes between the left and right leg components E and connects the leg components E to each other. A material H is provided.

<Leg Component E>
The left and right leg components E are symmetrical to each other. The left and right leg component members E are integrally formed by aluminum die casting. The left and right leg component members E project inwards inward in the longitudinal middle part of the front leg 2 and the front leg 2 integrally extended forward from the upper end of the rear leg 1 and the upper end of the rear leg 1. And a joint portion 3 provided. A caster F is provided at the lower end of the rear leg 1 and the lower end of the front leg 2. The inner surfaces of the left and right rear legs 1 are provided with a synthetic resin damper G capable of exerting a buffer function with another chair A ′ entering from the rear during stacking and a positioning function with another chair A ′ There is.

  The rear leg 1 extends in the vertical direction. The rear legs 1 extend in the vertical direction in a forwardly inclined posture in side view. The rear leg 1 is inclined in such a manner that the lower portion is located outside the upper portion in front view and rear view. At an upper end portion of the rear leg 1, a back plate connection portion N which protrudes upward is provided. The back plate connection portion N is shaped so as to be fitted in a fitting hole (not shown) formed downward in the extension portion M of the back plate D. In other words, the back plate D is fitted around the back plate connection portion N provided on the leg component E. Then, the back plate connecting portion N of the leg component E is fixed by the screw v1 inserted through the screw insertion hole m1 provided in the extending portion M. The upper exposed surface of the rear leg 1 is set to be flush with the exposed surface of the extension M in the back plate D.

  The front leg 2 has an inclined front leg 21 extending rectilinearly in a posture inclined backward in a side view, and an upper part extending between the front and rear and connecting the upper end of the inclined front leg 21 and the upper end of the rear leg 1 And a front leg 22. In the front leg 2, the inclined front leg 21 is located at the front, and the upper front leg 22 is located at the rear. The front leg 2 is inclined in such a manner that the lower portion is located more inward than the upper portion in front view and rear view. The width dimension of the inclined front leg 21 in the side view is set to be shorter (smaller) than the width dimension of the upper front leg 22 in the side view. As shown in FIG. 9, the front leg 2 is provided with a holding portion 221 capable of rotatably supporting the seat C on the inner surface side of the upper front leg 22 located at the upper portion thereof. The holding portion 221 is in the form of a bottomed hole opened inward. One end portion of a shaft member P for pivotally supporting the seat C enters the holding portion 221, and the shaft member P is attached. A downward facing surface 222 to which the upper facing surface of the damper G can abut is formed on the lower side of the base end of the front leg 2, that is, on the inner side of the rear leg 1 below the upper front leg 22.

  The joint portion 3 is provided to project from the longitudinal middle portion of the front leg 2, more specifically, from the inner surface side of the upper portion of the inclined front leg portion 21 of the front leg 2. The joint portion 3 extends forward substantially horizontally from the inclined front leg portion 21 in a side view. The joint portion 3 extends inward substantially horizontally in a front view. The joint portion 3 extends obliquely forward in a bottom view. The joint portion 3 is provided with a screw insertion hole 311 which penetrates in the left and right direction at the tip end portion 31 thereof. The tip portion 31 of the joint portion 3 has a shape that can be fitted to the joint material H. The distal end portion 31 of the joint portion 3 is internally fitted in a recessed portion h1 provided at an end portion of the joint material H. The leg component E having the joint portion 3 is connected to the joint member H by the screw v2 which is a fastening member inserted from the outside into the screw insertion hole 311 provided in the distal end portion 31 of the joint portion 3. It is supposed to

  In addition, the screw v2 which connects the joint material H and the leg component E is concealed by the cover I which also served as the buffer function with other chair A '.

  The cover I has a front cover portion i1 located on the front side of the tip portion 31 of the joint portion 3 and an outer cover portion i2 located on the outside of the tip portion 31 of the joint portion 3 and covering the screw insertion hole 311 and the screw v2. It has a substantially L-shape in plan view integrally provided.

  The damper G is provided on a support B that supports the seat C and the back plate D. The dampers G are respectively attached to the inner surfaces of the left and right rear legs 1 constituting the leg component E.

  The damper G has an abutting inclined surface r which can abut the supports B of the other chairs A ′ approached from the rear in the stacking state and restrict forward movement and lateral movement of the other chairs A ′. It is The contact inclined surface r faces inward and is set to be positioned gradually outward toward the lower side.

  The damper G has a shape extending in the vertical direction. The damper G is disposed on the movement restricting portion g2 having the contact inclined surface r, the buffer portion g3 disposed under the movement restricting portion g2, and the movement restricting portion g2, and the upper end surface is the support B And a positioning portion g1 that can abut on the downward surface 222 provided on the The buffer portion g3 can be in contact with the front leg 2 of the support B in another chair A 'which has entered from the rear in the stacking process.

<Joint material H>
The joint material H has a prismatic shape extending in the left-right direction. The joint material H can function as a seat support that can support the seat C from below. The joint material H has a substantially square pole shape extending in the left-right direction. The joint material H has an upward facing surface h3 that is substantially horizontal. The upper surface h3 of the joint material H is in contact with the lower surface of the cross support frame portion 7 of the seat C in the use posture (U). The joint material H is provided with a nut portion h2 to which a screw v2 inserted from the outside at the left and right end portions can be screwed. The joint material H is attached to the joint portion 3 provided on the leg component E by a screw v2.

<< C >>
The seat C is configured to be pivotable between a use posture (U) where the seating surface faces upward and a seating position where a seated person can sit, and a storage posture (S) standing up to the floor surface. The seat C is rotatably supported by the upper front leg 22 of the front leg 2 of the support B via the shaft member P.

  The seat C is provided with a seat body J formed by supporting the canvas 5 by the seat frame 4 and a seat frame K for supporting the seat body J.

<Seat main body J>
The seat body J is supported by the support B via a seat frame K. The seat body J includes a seat frame 4 having a substantially square frame shape, and a stretchable base 5 stretched in the seat frame 4. The seat frame 4 and the base 5 are integrally formed by thermal pressure molding or injection molding.

  The seat frame 4 includes left and right side seat frame portions 41 extending in the front and rear direction, a front seat frame portion 42 extending in the left and right direction connecting the front ends of the left and right side seat frame portions 41, and left and right side seat frame portions 41. And a rear seat frame 43 connecting the rear ends.

  The left and right side seat frame portions 41 are supported from the lower side by the side frame portion 61 of the frame portion 6 of the seat frame K. The left and right side seat frame portions 41 have a gentle S-shape in side view so as to follow the shapes of the left and right side frame portions 61. That is, the left and right side seat frame portions 41 are arranged from the rear end of the first front inclined portion 411 which is located at the front end and is inclined forward in side view, and from the rear end of the first front inclination portion 411 It includes a rearward inclined portion 412 in a rearward inclined position in side view and a second forward inclined portion 413 continuously connected from the rear end of the rearward inclined portion 412 and in a forward inclined position in side view.

  The first forward inclined portion 411 is supported by the front portion 611 of the side frame portion 61 from the lower side. The rearward inclined portion 412 is supported from the lower side by the middle portion 612 of the side frame portion 61. The second forward inclined portion 413 is supported from below by the rear portion 613 of the side frame portion 61.

  The front seat frame portion 42 is bridged between the front ends of the left and right side seat frame portions 41. The front seat frame portion 42 is supported by the front frame portion 62 of the frame portion 6 from below.

  The rear seat frame portion 43 is supported by the rear frame portion 63 of the frame portion 6 from the lower side.

  The base 5 is in the form of a sheet that is tensioned on the seat frame 4. The tension cloth 5 is made of a flexible fabric and does not have shape retention by itself. The peripheral edge of the tension place 5 is supported by the seat frame 4. In other words, the tension ground 5 is disposed in the area surrounded by the seat frame 4.

  The tension 5 is a tension in the front-rear direction, that is, a tension that pulls the front seat frame 42 and the rear seat frame 43 in the lateral direction, that is, a force that pulls the lateral seat frames 41 in the lateral direction. Is set to be strong. More specifically, the cloth 5 includes a plurality of wefts (not shown) extending in the left-right direction and a plurality of warps (not shown) extending in the front-back direction and having different elasticity characteristics from the weft. It is what is provided. The tension of the weft yarn 5 is set higher than that of the warp yarn.

  The rear portion of the stretchable base 5 forms a rear seating surface 53 which is an elastically deformable seating surface set to be positioned gradually upward toward the rear. The longitudinal center portion of the stretchable base 5 forms a central seating surface 52 which is an elastically deformable seating surface which is set to be positioned gradually downward toward the rear. The front part of the stretchable base 5 forms an elastically deformable front seating surface 51 which is set to be positioned gradually upward toward the rear.

  The tension ground 5 supported by the seat frame 4 in this embodiment is capable of taking a so-called three-dimensionally raised configuration by only the tension ground 5. In other words, the tensioning member 5 can take a three-dimensionally raised configuration without being subjected to an external force by another member with respect to a portion inside the peripheral edge. That is, the entire stretchable fabric 5 follows the shape of the side seat frame portion 41 supporting the stretchable fabric 5 in the side view, and is configured to be undulated in an S shape in the side view. In addition to this, by making the tension in the front and rear direction and the left and right direction in the stretchable base 5 different, the degree of the S-shaped unevenness at the center part in the left and right direction of the stretchable base 5 is closer to the side seat frame 41 It is set more gently than the degree of S-shaped undulation at the position.

  The seat frame K is integrally formed of a synthetic resin. Since the seat frame K is fixed to the left and right leg components E via the shaft member P provided with the collar portion p1, the left and right leg components E are prevented from being separated from each other. ing.

<A seat frame K>
The seat frame K is rotatably supported on the support B via a shaft member P. The seat frame K supports the seat body J from below. The seat frame K includes a frame portion 6 that abuts on the lower surface of the seat frame 4 in the seat body J, and a horizontal support frame portion 7 that is bridged to the frame portion 6.

  The frame part 6 connects the left and right side frame parts 61, the front frame part 62 connecting the front ends of the left and right side frame parts 61, and the rear end of the left and right side frame parts 61. And a frame portion 63.

  The left and right side frame parts 61 are provided with a shaft insertion hole 61a through which a shaft member P for rotatably supporting the seat C can be inserted. At an inner end of the shaft member P, a collar portion p1 is formed. The flange portion p1 of the shaft member P is in contact with the inner surface side of the side frame portion 61. The frame portion 6 has high rigidity made of, for example, reinforced nylon, and cooperates with the shaft member P directly attached to the left and right leg component members E to form the left and right leg component members E. Are prohibited from being separated from each other.

  The lateral cross frame portion 7 has a curved shape so as to be convex downward in a front view. The lateral frame portion 7 is provided between the left and right side frame portions 61 of the frame portion 6. The transverse frame portion 7 extends substantially horizontally in the horizontal direction between the tip portions of the inclined extension portions 71 projecting obliquely downward from the left and right side frame portions 61 and the left and right inclined extension portions 71. And a horizontal horizontal support portion 72. A sheet-like buffer member 73 is provided on the lower surface of the horizontal cross-bridge portion 72.

<< Backboard D >>
The back plate D includes a back plate main body L having a backrest surface that can be attached to the back of a seated person, and left and right extension portions M extending downward from the left and right lower end portions of the back plate main body L. Be prepared. In the back plate D, fitting holes (not shown) provided in the left and right extending portions M are externally fitted to the back plate connecting portion N provided in the support B. A screw insertion hole m1 is provided in the left and right extension parts M, and the back plate D is attached to the support B by screwing a screw v1 inserted through the screw insertion hole m1 to the back plate connection portion N. It will be. The back plate D is integrally formed of a synthetic resin. The back plates D are fixed to the left and right leg components E, respectively, and the left and right leg components E are not separated from each other.

  As described above, the chair according to the present embodiment is a seat that is configured to be pivotable between a use posture (U) where a seated person can sit and a storage posture (S) that stands up to the floor surface. C and a support B capable of supporting the seat C, and another chair A 'having the same structure is configured to be stackable in the front-rear direction on the floor surface. Then, the support B of the other chair A ′ entering from the rear in the stacking state abuts on the support B, and the contact sloping surface r which can restrict the forward movement and the lateral movement of the other chair A A damper G is provided. For this reason, in the chair A capable of stacking in the front-rear direction, it is possible to provide the chair A capable of exerting a buffer function at the time of stacking and suitably holding the stacking posture of the other chair A '.

  The support B is provided with a pair of rear legs 1 on the left and right, and dampers G are attached to the inner surface of the rear legs 1 respectively. Therefore, the damper G is disposed on the inner side of the rear leg 1 which is less noticeable to the user, and a desirable appearance can be realized while exhibiting the intended function.

  The contact inclined surface r is set to face inward and be positioned gradually outward toward the lower side. For this reason, it is comprised so that the outer surface of the front leg 2 of other chair A 'can be contacted suitably.

  The damper G has a shape extending in the vertical direction, and includes a movement restricting portion g2 having a contact inclined surface r, and a buffer portion g3 disposed below the movement restricting portion g2, g3 can be in contact with the support B in the other chair A 'in the stacking process. For this reason, the damper G is capable of suitably absorbing the shock and the collision sound which may be generated due to the instantaneous collision with the other chair A 'at the stacking time by the buffer portion g3.

  A damper G is provided on the movement restricting portion g2 and has a positioning portion g1 whose upper end surface can be in contact with a downward surface 222 provided on the front leg 2 of the support B. Therefore, the positioning of the damper G with respect to the rear leg 1 can be suitably performed by interlocking with the front leg 2.

  The present invention is not limited to the embodiments detailed above.

  The contact inclined surface of the damper is not limited to one facing inward, and may be one facing outward. In other words, the damper is not limited to the damper provided on the inner surface side of the rear leg, and may be provided on the outer surface side of the front leg or the outer surface side of the joint portion. That is, the abutment inclined surface may be capable of restricting backward movement and leftward movement in the other chair that has entered from the front side.

  Further, the contact inclined surface is not limited to one that is set to be positioned gradually outward on the lower side, as long as it is inclined with respect to a vertical surface or a horizontal surface.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

A ... chair A '... other chair (chair)
B: Support C: Seat G: Damper r: Contact inclined surface (U): Use posture (S): Storage posture

Claims (5)

It has the same structure as the seat that can be pivoted between the use posture in which the seated person can sit and the storage posture that stands up to the floor surface, and a support that can support this seat. A chair in which other chairs can be stacked in the longitudinal direction on the floor surface,
The support is provided with a damper having an abutting inclined surface which can abut the support of the other chair in the stacking state and restrict forward and backward movement and left and right movement of the other chair. Chairs. The support comprises a pair of left and right rear legs.
The chair according to claim 1, wherein the dampers are respectively attached to the inner surface of the rear leg. The chair according to claim 1 or 2, wherein the abutting inclined surface is set to be inward facing and to be positioned gradually outward toward the lower side. The damper has a shape extending in the vertical direction,
And a buffer portion disposed under the movement restricting portion, the movement restricting portion having the contact inclined surface, and
The chair according to any one of claims 1 to 3, wherein the buffer portion can abut on a support in the other chair in a stacking process. 5. The chair according to claim 4, wherein the damper is provided with a positioning portion which is disposed on the movement restricting portion and whose upper end face can be in contact with a downward surface provided on the support.

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