JP5070566B2 - Chair - Google Patents

Description

  The present invention relates to a chair used particularly in a conference room or a meeting place.

This type of chair is often configured by supporting a backrest or seat mainly made of a hard resin plate on a metal pipe leg (see, for example, the following patent document).
JP 2006-158745 A

  In the chair as in the above example, the backrest or the like becomes a single color, which may give a monotonous impression. Also, since the hard resin plate is hard and difficult to deform, the body pressure applied to the seated person's body is dispersed, and the surface shape such as the backrest is changed to accommodate individual differences in physique and figure. You can't expect an effect like this.

  The present invention made in view of the above is intended to enhance the design of the chair and improve the sitting comfort by a simple method.

In order to solve the above-described problems, in the present invention, a support member that receives a load on the body of a seated person is manufactured using a material that is elastically deformable and has translucency, and the thickness of a predetermined portion of the support member is set to other values. By changing the translucency by making it different from the thickness of the part, the predetermined part of the support member is made thicker than its vicinity, and the part is attached to a rigid support body, and other parts The translucency is higher than the translucency of the part, and the support member can be seen from the surface side. If it is such, it is possible to realize a visual change while adjusting the hardness for each part of the support member by making the part requiring rigidity thick and the part to be flexibly deformed thin. It becomes. Further, since it is possible to easily visually recognize which part of the support member is hard and which part is soft, there is also an advantage that the seated person can understand the function of the chair at a glance. In addition, the attachment strength of the support member to the support body is improved.

More preferably, the outer circumferential edge portion of the support member is thickened than its vicinity a structure for joining the portion to the support body.

  If the outer peripheral edge of the support member is thickened and the inside surrounded by the outer peripheral edge is thinned while the inside is projected toward the body side of the seated person, the outer peripheral edge of the support member The attachment strength can be kept high by joining the support body to the support body, and at the same time, the degree of hardness / softness feel given to the body of the seated person can be adjusted appropriately.

  The support member is preferably applied as at least a part of the backrest, for example.

  According to the present invention, it is possible to improve the design of the chair and improve the sitting comfort by a simple method.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The chair of the present embodiment shown in FIGS. 1 to 4 has a back seat supported on a leg frame 4 mainly made of a metal pipe material, for example, and is used particularly in a conference room or a meeting place.

  The backrest of the chair according to the present embodiment mainly includes a shell 1 as a support body and a lumbar support body 2 as a support member attached to the shell 1.

  The shell 1 is made of, for example, a hard resin. As shown in FIGS. 1 and 2, in this embodiment, a back shell 11 that forms a general shape of a backrest and a seat shell 15 that forms a general shape of a seat are integrally formed, and a seat cushion is formed on the seat shell 15. 3 is mounted and fixed. As shown in FIG. 3, the side cross-sectional shape of the back shell 11 gently protrudes forward as it goes downward from the upper edge, and the vicinity of the height position corresponding to the waist of the seated person is located at the forefront, and further It recedes slightly as it goes downward, and is curved forward to continue to the seat shell 15 at the bottom. As shown in FIG. 4, the flat cross-sectional shape of the back shell 11 is a concave shape in which the left and right sides are forward and the center is rearward. Generally, the back surface of the back shell 11 wraps around the back of the seated person.

  Thus, in the present embodiment, the lumbar support body 2 is attached so that the opening 12 penetrating the front and back is provided at the height position corresponding to the waist of the seated person in the back shell 11 and the opening 12 is closed. is doing.

  The lumbar support body 2 is made of a material that is elastically deformable and has translucency, for example, urethane rubber (urethane elastomer). The lumbar support body 2 has an outer peripheral shape substantially corresponding to the opening 12 formed in the shell 1 when viewed from the front. The outer peripheral edge portion 21 is relatively thick and the inner portion 22 surrounded by the outer peripheral edge portion 21 is compared. It is molded thinly. The inner portion 22 is gradually thinner than the outer peripheral edge portion 21 and protrudes toward the body side of the seated person, that is, forward from the outer peripheral edge portion 21, and is recessed when viewed from the rear.

  In the lumbar support body 2, the thick part 21, that is, the hard part, is visually recognized with a thick hue of the material. On the other hand, the thin portion 23, that is, the soft portion, is higher in translucency than the thick portion 21, so that not only the hue of the material but also the light color of the ambient light that passes through this portion is visible. The Therefore, in a bright room, the outer peripheral edge portion 21 of the lumbar support body 2 looks dark in material hue, and the interior 22 looks thin in material hue, in other words, it looks bright (whiter). Incidentally, in this embodiment, the hue of the material of the lumbar support body 2 and the hue of the seat cushion 3 are the same color.

  In the present embodiment, a concave portion 14 is provided in the inner peripheral edge portion 13 of the opening 12 in the shell 1, and a convex portion 22 is provided in the outer peripheral edge portion 21 of the lumbar support body 2. As a result, the lumbar support body 2 is attached to the shell 1. More specifically, a concave groove 14 is formed on the inner peripheral end surface of the opening 12 of the shell 1 over substantially the entire circumference, and the convex fitting fits into the concave groove 14 over the entire outer peripheral end surface of the lumbar support body 2. A strip 22 is formed, and the inner peripheral edge 13 of the opening 12 of the shell 1 and the outer peripheral edge 21 of the lumbar support body 2 are joined over substantially the entire circumference. A portion of the ridge 22 (in the illustrated example, the tip portion) protrudes in a direction (that is, forward and / or rearward) intersecting the direction penetrating the concave groove 14 and has a hook shape. The part is designed to accept this plight. This is to prevent the ridge 22 from being pulled out of the groove 14 when a load is applied to the lumbar support body 2. In principle, the lumbar support body 2 is formed integrally with the shell 1. However, the lumbar support body 2 may be detachable from the shell 1.

  In a state where the lumbar support body 2 is attached to the back shell 11, the lumbar support body 2 protrudes from the surface of the back shell 11. Further, the inner peripheral edge 13 of the opening 12 of the shell 1 is bulged rearward so that the thickness of the inner peripheral edge 13 is substantially equal to the thickness of the outer peripheral edge 21 of the lumbar support body 2. There are no conspicuous steps or gaps at the boundary with the lumbar support body 2 on both sides.

  According to the present embodiment, the support member 2 that receives the load of the body of the seated person is manufactured using a material that is elastically deformable and has translucency, and the thickness of the predetermined portion 21 of the support member 2 is set to the other portion 23. Since the translucency is changed by changing the thickness of the support member 2, the portion requiring rigidity is made thick, and the portion to be flexibly deformed is made thin, and the rigidity of each support member 2 is adjusted. However, visual changes can be realized. Further, since it is possible to easily visually recognize which part of the support member 2 is hard and which part is soft, there is also an advantage that the seated person can understand the function of the chair at a glance.

  The support member 2 is attached to and supported by a rigid support body 11, and the predetermined portion 21 of the support member 2 is made thicker than the vicinity thereof and the portion 21 is joined to the support body 11. Since it is set as the structure to support, the attachment strength with respect to the support main body 11 of the support member 2 improves.

  Since the outer peripheral edge 21 of the support member 2 is thickened and the inner 22 surrounded by the outer peripheral edge 21 is thinned, the inner 22 is projected toward the body side of the seated person. By attaching the outer peripheral edge portion 21 of the support member 2 to the support body 11, the attachment strength can be kept high, and at the same time, the degree of hardness / softness feel given to the body of the seated person can be adjusted appropriately.

  The present invention is not limited to the embodiment described in detail above. For example, a convex or convex line may be provided on the inner peripheral edge of the opening of the support body, and a concave or convex groove may be provided on the outer peripheral edge of the support member to construct a concave / convex fitting structure between them. Further, the method of attaching the support member to the support body is not limited to the above-described uneven fitting, and it is allowed to adopt various known attachment / fixing methods. In addition, the aspect which makes a support member non-detachable with respect to a support main body is not prevented.

  In the above embodiment, the peripheral edge of the opening of the support body is closed, but the peripheral edge of the opening may not be completely closed. In addition, it is not necessary to join the entire inner peripheral edge of the opening of the support body and the entire outer peripheral edge of the support member. The support member does not necessarily block the entire opening of the support body.

  The shape of the support member is not limited to the above embodiment. As illustrated in FIG. 5 and FIG. 6, it is conceivable to thicken a portion to be joined to the support body 11, that is, a portion 24 other than the outer peripheral edge portion 21. In the illustrated example, a thick portion 24 is formed in an interior 23 surrounded by the outer peripheral edge 21. This part 24 has a convex shape that protrudes further forward than the other parts 21 and 23, and becomes a so-called massage ball that massages the body of the seated person when the seated person leans back greatly. .

  Contrary to the examples shown in FIGS. 5 and 6, as shown in FIG. 8, the thick portion 25 may have a convex shape protruding backward. Also at this time, as shown in FIG. 7, even if the surface of the support member 2 is a gentle surface, it can be visually recognized that a change in thickness is applied to the back surface side. That is, the distribution of the hard portions 21 and 25 and the soft portion 23 in the support member 2 and the degree of hardness / softness can be seen from the surface side. This is also effective when the support member is applied to a chair seat or the like.

  The function of the support member is not limited to the lumbar support. As illustrated in FIG. 9, the support body 11 may be provided with an opening 16 extending up and down substantially parallel to the back muscles of the seated person, and the support member 5 may be attached to the opening 16. This support member 5 realizes a function of pressing near the back muscles of the seated person or the shoulder ribs. As in the illustrated example, the support body 11 is provided with a plurality of openings 16 so as not to prevent the plurality of support members 5 from being attached. The opening 16 and the support member 5 can be the same as the opening 12 and the support member 2 in the above embodiment.

  In the above embodiment, an opening is provided in the support body, and the support member is attached to the opening. However, the support member may be attached without providing the opening in the support body.

  In the above embodiment, the backrest of the chair is configured by attaching the elastically deformable support member to the rigid support body, but the support member alone can be obtained by appropriately designing the shape and thickness of the thick part. It is also possible to adopt a mode that constitutes the backrest of the chair.

  The application target of the present invention is not limited to the backrest of a chair. It is conceivable that the seat shell is used as a support body, and a support member is attached to the seat shell to constitute a chair seat. The support member at this time can realize a perbic support function of a seated person, for example. Similarly, the present invention can be applied to an armrest or a headrest of a chair.

  Other specific configurations of the respective parts are not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

The perspective view which shows the chair of one Embodiment of this invention. The front view of the chair. The principal part sectional side view which shows the backrest of the chair. The principal part plane sectional view seen from the lower part which shows the backrest of the chair. The front view which shows one of the modifications of this invention. The principal part sectional side view which shows the backrest of the chair. The front view which shows one of the modifications of this invention. The principal part sectional side view which shows the backrest of the chair. The front view which shows one of the modifications of this invention.

Explanation of symbols

1/11 ... Supporting body (shell / back shell)
12, 16 ... Opening 13 ... Inner peripheral edge 14 ... Recess (concave groove)
2, 5 ... Support member (lumbar support body)
21 ... Outer peripheral edge 22 ... Convex part (projection)
23 ... Inside

Claims (4)

A support member that receives the load of the seated person's body is made using an elastically deformable and translucent material, and the thickness of the predetermined part of the support member is made different from the thickness of other parts. Has changed ,
The predetermined part of the support member is thicker than the vicinity thereof, and the part is attached to a rigid support body, and the translucency of the other part is higher than the translucency of the part, and the support A chair characterized in that the member can be seen from the front side . The chair according to claim 1, wherein the outer peripheral edge portion of the support member is thicker than the vicinity thereof and the portion is joined to the support body. The chair according to claim 1 or 2, wherein the outer peripheral edge portion of the support member is thickened, and the inside surrounded by the outer peripheral edge portion is thinned, and the inside is projected toward the body side of the seated person. The chair according to claim 1, 2, or 3, wherein the support member forms at least a part of a backrest.

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