JP2018086190A - Chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair equipped with a backrest which can follow the back of a sitter with a simple configuration.SOLUTION: A chair 1 has: a leg 2 having leg pipes 21 as a main body; a seat 3 fixed on an upper end of the leg 2; a backrest 4 composed of a plurality of vertically-long members 40 which extend while being bent upward of the seat 3 from a lower surface side of the seat 3; and a back cover 5 removably fitted to the backrest 4. According to the embodiment, the backrest 4 is composed of a plurality of vertically-long members 40 that are configured separately from the seat 3, fixed to the seat 3, and are provided from the rear end of the seat 3 in the width direction side by side.SELECTED DRAWING: Figure 1

Description

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

  Conventionally, in a chair having a backrest, a chair in which a plurality of vertically long slits are formed in the width direction of the backrest in order to faithfully follow the backrest caused by the movement of the back accompanying the change in posture of the seated person is well known. (For example, see Patent Documents 1 to 3). By configuring in this way, the chair described in Patent Document 1 has a backrest that is easily and locally deformed as compared to a configuration in which no slit is provided, and is suitably fitted to the shape of the seated person's back. An object of the present invention is to provide a chair that can faithfully follow the movement of the back of the seated person.

Japanese National Patent Publication No. 10-507091 Japanese Patent No. 5603329 Japanese Patent No. 5906289

  However, the thing described in each said patent document makes the process of providing a slit in a vertical direction with respect to a plate-shaped back board material in the case of a manufacturing process. In addition, since it is necessary to provide a plurality of slits in the width direction, high accuracy is naturally achieved in the slit forming process in order to make the intervals in the width direction and the shape of the slits orderly. It will take time and labor to do. Introducing the slit forming process will scrape a part of the back plate material that can be the back plate in the first place, so it requires more back plate material as compared with the aspect having the same amount of material. As a result, the manufacturing cost increases. In addition, in order to make the backrest and the seat into an integrated three-dimensional shape, it becomes complicated and large in the mold in resin molding, and in the first place it is difficult to make a three-dimensional shape in molded plywood, so both are manufacturing processes This leads to complications and cost increases resulting therefrom.

  An object of the present invention is to solve the above-described problems, and provides a chair having a backrest that can follow a seated person's back suitably while having a simple configuration.

  In order to achieve this object, the present invention takes the following measures.

  That is, the chair according to the present invention includes a seat and a backrest composed of a plurality of vertically long members fixed to the seat and arranged in the width direction.

  If it is such, if the plurality of vertically long members constituting the backrest are individually made to be fixed to the seat, the backrest composed of the plurality of vertically long members can be easily configured. be able to. In other words, the longitudinal members that make up the backrest are made separately one by one, and if you attach the created longitudinal members to the seat one by one, you can form the backrest, so a slit is formed in the integrated back plate material The manufacturing process can be simplified rather than doing so, and as a result, the manufacturing cost of the entire chair can be reduced.

  In order to further simplify the manufacturing process, it is desirable that the plurality of vertically long members have the same shape. As a result, by reducing the number of types of components, that is, by improving the sharing of components, this also contributes to a reduction in manufacturing cost of the entire chair.

  And as a material constituting the backrest, various existing materials can be applied, but as a suitable material that can provide an appropriate reaction force while suitably following the back of the seated person, a plurality of members are: It is preferable to use a molding material formed by laminating thin wooden boards or a molding material comprising a laminated material containing carbon fibers. If it is such, it will become easy to ensure intensity | strength even if each vertically long member is comprised thinly in the width direction.

  Moreover, in order to make the shape of the backrest easy to support the seated person's back, it is preferable to form a backrest by forming a three-dimensional curved surface with a plurality of vertically long members. desirable. Of course, this description does not deny an aspect in which a plurality of vertically long members are regularly arranged. In particular, according to the present invention, if the arrangement of the vertically long members is appropriately devised, the backrest having various three-dimensional shapes can be easily formed.

  In order to further improve the strength of the backrest as a whole, it is desirable to connect the upper portion of the backrest with a connection cover in which a plurality of vertically long members are connected.

  In addition, in order to be able to suitably follow the movement of the back of the seated person while preferably maintaining the seating feeling of the seated person, the upper part of the backrest is separated from the upper ends of the plurality of vertically long members. It is preferable that the cover is covered with a covering cover.

  Since the present invention has the above-described configuration, it is possible to provide a chair having a backrest that can suitably follow the back of a seated person while having a simple configuration.

The perspective view which concerns on one Embodiment of this invention. The front view. The right side view. The bottom view. The other perspective view which concerns on the same embodiment. The perspective view which concerns on the modification of the embodiment.

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

  The chair 1 according to the present embodiment is preferably used in an office or a meeting space, for example. For example, the chair 1 may be configured to be so-called stackable so that the chairs 1 having the same shape can be stacked and held in the vertical direction without any gap. The chair 1 includes a leg 2 mainly composed of a leg pipe 21, a seat 3 fixed to the upper end of the leg 2, and a plurality of vertically long members extending while curving upward from the lower surface side of the seat 3 to the seat 3. The backrest 4 includes 40 and the back cover 5 is detachably attached to the backrest 4.

  Here, in the chair 1 according to this embodiment, the backrest 4 is configured separately from the seat 3, and is fixed to the seat 3, and is provided with a plurality of vertically long members arranged in the width direction from the rear end of the seat 3. It is assumed to consist of 40. Hereinafter, the structure of each part of the chair 1 will be described.

  The leg 2 includes, for example, a leg pipe 21 made of a metal round pipe formed in an arch shape, and a fixing member 22 that fixes the leg pipes 21 arranged on the front and rear sides to each other, for example, by welding. Have. In the present embodiment, as an example, the configuration in which the leg pipe 21 having the arch shape in front view so as to make a pair in the front and rear is disclosed, but of course, the leg pipe 21 having the arch shape in side view so as to make a pair in the left and right is provided. It is good also as an aspect which has arranged, and the fixing member 22 connects the leg pipes 21 back and forth.

  The seat 3 is mainly composed of a seat plate 30 having a substantially rectangular shape in plan view. The seat surface 31 that supports a seated person on the upper surface of the seat plate 30, and the leg 2 on the lower surface side of the seat plate 30. A leg mounting part 32 for fixing and a back mounting part 33 formed for fixing the backrest 4 on the lower surface side of the seat 3 are provided.

  As described above, the backrest 4 includes a plurality of vertically long members 40 that are configured separately from the seat 3 and are fixed to the seat 3 and arranged in the width direction from the rear end of the seat 3 in the present embodiment. It will be. The vertically long member 40 is curved on the upper side of the seating surface 31 while extending upward from the rear end of the seat 3 while being fixed to the back mounting portion 33 on the lower surface side of the seat 3 on the base end side. It has a curved portion 42 and a backrest portion 43 that can directly support the back of the seated person at the upper end. In the present embodiment, the plurality of vertically long members 40 have the same shape, which contributes to a reduction in the number of types of parts constituting the chair 1. Further, the curved portions 42 formed by the plurality of vertically long members 40 form a three-dimensional curved surface 4 a having a curved shape on the front side of the backrest 4. Here, in the present embodiment, the plurality of vertically long members 40 are fixed by screwing or the like (not shown) at the back mounting portion 33 of the seat 3. Of course, the aspect in which the plurality of vertically long members 40 are attached to the seat 3 is as follows. The fixing part 41 is inserted into a sleeve provided on the seat 3 side, for example, an embodiment by fastening with an adhesive, a shape that is unevenly engaged by processing the shape on the seat 3 side, or the like. Various existing modes such as a fixed mode can be applied.

  Moreover, in this embodiment, the molding material 100 which laminated | stacked the thin wooden board is used as a raw material which comprises the backrest 4. FIG. Specifically, a molding material 100 made of a laminate material containing carbon fibers is used as a material constituting the backrest 4. As an example, the molding material 100 is a laminated laminated material having a laminated integrated structure having at least a wood-based core material and a wood-based surface material, and a carbon fiber sheet between the wood-based core material and the wood-based surface material. There can be mentioned a laminated laminate having a reinforcing layer formed by impregnating and hardening a carbon fiber reinforced resin, and having a water-impermeable permeation preventing layer between the reinforcing layer and the wooden surface material. As a further specific aspect of the laminated laminate material which is the molding material 100, various aspects can be applied, such as a specific aspect of the carbon fiber sheet and an aspect of laminating each material.

  Here, in the present embodiment, as an example of the back cover 5, the upper part of the backrest 4 is attached with, for example, a cloth connection cover 51 that connects the plurality of vertically long members.

  The connection cover 51 is made of, for example, a belt-like cloth, and can cover the back support portion 43 so as to connect the back support portions 43 that are upper portions of the vertically long members 40. In the present embodiment, the cloth connection cover 51 is applied. Needless to say, any material that can connect the back support portions 43 that are the upper portions of the vertically long members 40 may be, for example, a string-like or thread-like material. .

  By attaching the connecting cover 51, the longitudinal members 40 can appropriately support the back of the seated person while appropriately interlocking according to the movement of the seated person, and the strength of the backrest 4 as a whole can be increased. It is improved by 51.

  As described above, in the chair 1 according to the present embodiment, the plurality of vertically long members 40 constituting the backrest 4 are separately made one by one, and the plurality of vertically long members are fixed to the seat 3. A backrest 4 comprising 40 is easily constructed. In other words, if the vertically long members 40 constituting the backrest 4 are individually made one by one and attached to the seat 3, the backrest 4 can be formed, so a slit is formed in the integral back plate material. As a result, the manufacturing process can be simplified, and as a result, the manufacturing cost of the chair 1 as a whole is effectively reduced.

  In this embodiment, in order to further simplify the manufacturing process, a plurality of vertically long members, at least the curved portion 42 and the backrest portion 43 have the same shape. As a result, the number of parts constituting the chair 1 is reduced, that is, the sharing of the parts is improved, thereby contributing to the reduction of the manufacturing cost of the chair 1 as a whole.

  In the present embodiment, various existing materials can be applied as the material constituting the backrest 4. As a suitable material capable of providing an appropriate reaction force while suitably following the back of the seated person. The plurality of members described above is a molding material 100 in which a plurality of wooden boards are laminated, specifically, a molding material 100 made of a lamination material containing carbon fibers in at least one intermediate layer. As a result, even if each vertically long member is configured to be thin in the width direction, it is easy to ensure the strength.

  In order to make the shape of the backrest 4 easy to support the seated person's back suitably, in this embodiment, the backrest 4 is formed by forming a three-dimensional curved surface 4a with a plurality of vertically long members. It is set as the aspect which is. In particular, in the present embodiment, the backrest 4 having various three-dimensional shapes can be easily realized simply by devising the arrangement of the individual longitudinal members 40 as appropriate.

  In order to improve the strength of the backrest 4 as a whole, in the present embodiment, as an example of the back cover 5 that covers the upper portion of the backrest 4, a connection cover 51 in which a plurality of vertically long members are connected to each other. It is set as the structure connected by.

  <Modification>

  Hereinafter, a modification of the present embodiment will be described with reference to FIG. In the modified example, components corresponding to the components of the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  Although the chair 1 which the upper part of the backrest 4 can follow suitably the motion of a seated person's back mentioned above and can improve the intensity | strength of the backrest 4 whole was disclosed in the said embodiment, the chair 1 shown in FIG. In the figure, the upper end of each of the plurality of vertically long members 40 is covered with an individual cover 52 which is another example of the back cover 5 indicated by an imaginary line in the drawing that is separate from each other. By attaching the individual cover 52, the backrest 4 that can appropriately follow the movement of the back of the seated person is realized in the present modified example while maintaining the seating feeling of the seated person.

  Although one embodiment of the present invention has been described above, the specific configuration of each part is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, although the chair of the aspect which can be stacked up and down was disclosed in the above-mentioned embodiment, of course, a leg shall consist of a leg feather supported by a caster, and a seat will be centered on a leg strut standing up from the center of a leg feather. A structure of a so-called office swivel chair that can rotate may be applied to the present invention.

  In addition, other specific configurations such as specific forms of materials constituting the back and the seat and specific shapes and specifications such as a laminated structure of molding materials can be variously modified without departing from the spirit of the present invention. is there.

DESCRIPTION OF SYMBOLS 1 ... Chair 3 ... Seat 4 ... Backrest 4a ... Three-dimensional curved surface 40 ... Long member 51 ... Connection cover 52 ... Covering cover 100 ... Molding material

Claims (7)

Zodiac,
A backrest composed of a plurality of vertically long members fixed to the seat and arranged in the width direction;
A chair characterized by comprising: The chair according to claim 1, wherein the plurality of vertically long members have the same shape. The chair according to claim 1 or 2, wherein the plurality of members are formed materials in which thin wooden boards are laminated. The chair according to any one of claims 1 to 3, wherein the plurality of members are formed materials made of a laminated material containing carbon fibers. The chair according to any one of claims 1 to 4, wherein a three-dimensional curved surface is formed by the plurality of vertically long members. The chair according to any one of claims 1 to 5, wherein an upper portion of the backrest is connected by a connection cover connecting the plurality of vertically long members. The chair according to any one of claims 1 to 5, wherein an upper portion of the backrest is covered with a covering cover that separates upper ends of the plurality of vertically long members from each other.

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