JPH0928516A - Chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair allowing a facing to be easily and properly attached or detached, and ensuring even durability to be enhanced. SOLUTION: Facings 23 are detachably jointed to a core material 21 respectively via the irregularity engagement part 4 where a groove 51 engraved on a female detachable member 5 fixed to the side edge 21a of the core material 21 is elastically engaged with a projected row 61 formed on a male detachable member 6 fixed to the inner edges 23b of the facings 23 at such positions as faced to the female detachable member 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair suitable for use in a highly public place such as a lobby.

[0002]

2. Description of the Related Art A chair arranged for a visitor in a highly public place such as a public office, a bank, a hotel lobby, etc., is arranged in a place that frequently goes in and out of the outdoors and is frequently used, so that the chair is easily soiled. In particular, the upholstery cloth that covers the seat and back is most likely to be dirty and the dirt is conspicuous, so it is necessary to frequently remove and replace it, and it is easy to connect the core material of the back and seat to the upholstery. In addition, it is necessary to configure so that it can be securely attached and removed.

As a conventional connection between the core material and the upholstery in such a chair, one articulator tape of a slide fastener is attached to the side edge of the core material of the back or seat and the other articulator tape is attached. It is known that the side edges of the upholstery are pre-sewn together, and the mating tapes of both sides are engaged to connect the core material and the upholstery.

Further, one of the surface fasteners which is attached and detached by utilizing the entanglement of the elastic member is sewn in advance to the side edge of the core material of the spine or seat, and the other to the inner edge of the upholstery, respectively. There is also known a structure in which the core material and the upholstery material are connected by attaching the surface fastener.

[0005]

However, the chair having such a structure has a problem in connection durability and the like.

That is, in the case of the connection through the former slide fastener, the core material-side articulator tape and the overlay-side articulator tape are not always manufactured at the same time, so that a lot error or the like may occur. Therefore, the slide fastener itself is highly likely to be damaged, and the durability is poor.

Further, in the latter case of connection via a surface fastener, the adhesive strength of the surface fastener decreases due to deterioration over time, and the adhesive strength further decreases due to the adhesion of lint or the like. In addition, since the positioning is difficult, the appearance and comfort of the back and seat are likely to vary.

The present invention aims to effectively solve these problems.

[0009]

In order to achieve the above object, the present invention employs the following configuration.

That is, a chair according to the present invention is a seat comprising a core material, a cushion arranged on the upper surface of the core material, and a lining material covering the core material and the cushion. A chair having a side edge of the core material,
The inner edge of the upholstery fabric at a position corresponding to the side edge is detachably engaged via a concave-convex engaging portion formed by elastic engagement of the protrusion and the groove. To do.

Further, as another structure, it has a spine comprising a core material, a cushion arranged in front of the core material, and a lining material covering the core material and the cushion. In the chair, a side edge of the core material and an inner edge of the upholstery fabric at a position corresponding to the side edge are provided with a concave-convex engaging portion configured by elastic engagement between a protrusion and a groove. And those that are detachably engaged with each other.

As a concrete embodiment of the concave and convex engaging portion, a female attaching / detaching member fixed to a side edge of the core member and a position facing the female attaching / detaching member on an inner edge of the upholstery fabric. The female removable member is formed with an elastically deformable groove whose inner portion is wider than the opening, and the male removable member has a distal end portion as a base. The protrusion is formed to be wider than the end portion, and when the protrusion is fitted into the groove, the tip end of the protrusion enters the inner part of the groove to perform the concave-convex engagement. Can be mentioned. Further, in the concave-convex engaging portion, the female attachment / detachment member includes the groove that substantially circulates a side edge of the core material, and the male attachment / detachment member defines the inner edge of the upholstery with the groove. It is desirable that the ridge be provided so as to substantially circulate corresponding to.

[0013]

With the chair having such a structure, the upholstery material can be easily attached to and detached from the core material through the concave-convex engaging portion, and the elasticity of the cushion and the tension of the upholstery material can be used. Not only can the durability be improved because a constant force can be applied to the concave-convex engaging portion to prevent it from slipping off during normal use, and it is less affected by deterioration and dirt and less likely to fail. In other words, the engagement position can be made constant, and the appearance and usability of the back and seat can be kept constant and comfortable.

These operations include the concave-convex engaging portion, the female attaching / detaching member provided with the groove on the core material side, and the protrusion provided on the upholstery side. By using the male attaching / detaching member, it can be obtained more reliably.

Further, the concave-convex engaging portion is provided with the groove that substantially circulates a side edge of the core material and the protrusion that substantially circulates an inner edge of the upholstery. Even if the ridge is displaced in the longitudinal direction, it can be engaged with the groove,
Positioning accuracy is not required when engaging in concave and convex,
The upholstery can be easily attached. Also,
Even when the side edge of the core material has a complicated shape such as being curved, the inner edge of the upholstery material can be engaged reliably following the shape of the side edge of the core material.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a sofa will be described below with reference to FIGS.

As shown in FIG. 1, this sofa is composed of a leg 1, a seat 2, and a back 3.

The leg 1 is a housing placed on the floor and has a seat 2 arranged on the upper surface.

The seat 2 includes a core member 21, a cushion 22 disposed on the upper surface of the core member 21, the core member 21 and the cushion 2.
2 and the upholstery material 23 which covers 2. Core material 2
Reference numeral 1 is a rectangular plywood member and is fixedly mounted on the upper surface of the leg 1. The cushion 22 is made of a cushion material having elasticity such as slab urethane, is a rectangular shape having substantially the same shape as the core material 21 in plan view, and is provided on the upper surface of the core material 21. The upholstery fabric 23 is a decorative cloth having a side edge 23a hanging down, and the cushion 2
2, the side edge 23a covers the side edge 21a of the core material 21 and the side edge of the cushion material 22.

The spine 3 includes a core material 31, a cushion 32 provided on the upper surface of the core material 1, the core material 31 and the cushion 32.
And the upholstery material 33 that covers the. Core material 31
Is made of square plywood, and is integrally formed with the rear end of the core material 21 of the seat 2 to support a load. The cushion 32 is made of an elastic cushion material such as slab urethane and has a rectangular shape which is substantially the same shape as the core material 31 which is integrally formed with the rear end of the cushion 22 of the seat 2 and is arranged on the front surface of the core material 31. Set up. The upholstery fabric 33 is a decorative cloth having side edges 33a hanging down, and covers the cushion 32, and also covers the side edges 31a of the core material 31 and the side edges of the cushion material 32 by the side edges 33a.

In such a chair, in this embodiment,
As shown in FIGS. 2 and 3, in the seat 2 and the back 3, the side edges 21a and 31a of the core materials 21 and 31 and the inner edges 23b and 33b of the upholstery materials 23 and 33 are respectively provided with concave and convex engaging portions. 4 is detachably connected.

The concavo-convex engaging portion 4 is formed on the side edge 2 of the core members 21 and 31.
Female attaching / detaching member 5 fixed to 1a and 21b, and upholstery material 2
The male attaching / detaching member 6 is fixed to the inner edges 23b / 33b of the member 33/33 at a position facing the female attaching / detaching member 5.

The female attaching / detaching member 5 is made of a semi-rigid resin such as vinyl chloride, and has side edges 21a and 31a of the core members 21 and 31.
It circulates the outer periphery of and is fixed. A groove 51 is formed in the female attaching / detaching member 5 along the longitudinal direction. The groove 51 has a wedge-shaped cross section in which the inner part 511 is wider than the opening part 512 and is elastically deformable having a symmetrical shape in the longitudinal direction.

The male attachment / detachment member 6 is made of a semi-rigid resin such as vinyl chloride, extends into a shape corresponding to the corresponding female attachment / detachment member 5, and is formed on the inner edges 23b and 33b of the upholstery material 23 and 33.
Fixed by suturing. The male attachment / detachment member 6 is provided with a ridge 61 protruding in the longitudinal direction. The ridge 61 has a tip portion 611.
Has a wedge-shaped cross section wider than the base end portion 612 and has a shape symmetrical in the longitudinal direction.

In order to attach the upholstery fabrics 23 and 33 to the seat 2 and the back 3 with such a chair, first, the upholstery fabrics 23 and 33 are to be mounted.
After the core materials 21 and 31 and the cushions 22 and 32 are covered with, the protrusions 61 of the male attachment / detachment member 6 are fitted into the grooves 51 of the female attachment / detachment member 5 facing each other, and the protrusions and recesses are engaged. At this time, as shown in FIG. 4, the tip end portion 611 of the ridge 61 enters the inner portion 511 while elastically deforming the opening portion 512 of the groove 51. Therefore, the concave-convex engaging portion 4 is easily displaced in normal use. There is no end. In order to remove the upholstery fabrics 23 and 33 from the seat 2 and the back 3, the protrusions 61 of the male attachment / detachment member 6 may be removed from the grooves 51 of the female attachment / detachment member 5, and in this case, the groove 51
Of the projection 61 by elastically deforming the opening 512 of the
1 may be extracted from the inner part 511 of the groove 51.

With the chair having such a structure, the upholstery fabrics 23 and 33 can be easily attached to and detached from the core members 21 and 31, and the elasticity of the cushions 22 and 32 and the upholstery fabrics 23 and 33 are improved. It is possible to apply a constant force to the concavo-convex engaging portion 4 by the tension of so that the concave-convex engaging portion 4 does not easily come off during normal use. The concavo-convex engaging portion 4 is less affected by deterioration and dirt and is less likely to cause a failure, so that not only the durability can be improved, but also the engaging position becomes constant and the appearance and comfort of the seat 2 and the back 3 are improved. Can be kept constant and comfortable. Further, since the groove 51 and the ridge 61 of the concave-convex engaging portion 4 are extended in the longitudinal direction, even if the ridge 61 is displaced in the longitudinal direction, the groove 51 and the ridge 61 can be easily engaged with the groove 51, and the positioning is performed. Not only is it possible to easily attach the upholstery fabrics 23 and 33 without the need for precision, but even if the side edges 21a and 31a of the core materials 21 and 31 have complicated shapes, this side Be sure to follow the shapes of the edges 21a and 31a, and the inner edge 23 of the upholstery 23 and 33.
It is possible to engage b * 33b.

The configuration according to the present invention is, of course, not limited to those described above. For example, the present invention can be applied to a chair in which the seat 2 and the back 3 are integrated, and the core materials 21 and 31, the cushions 22 and 32, and the upholstery materials 23 and 33 are integrally formed. be able to. Further, the present invention can be applied to a chair in which the seat 2 and the back 3 are completely separated, and at this time, it is also possible to apply the present invention to only one of the seat 2 and the back 3. It is also possible to apply to chairs that do not have 3. Further, the concave-convex engaging portion 4 includes, for example, the female attaching / detaching member 5 having the groove 51 on the side of the upholstery 23/33, the male attaching / detaching member 6 having the protrusions 61 on the core material 21/31 side, They may be fixedly provided, or may be provided only on a part of the core materials 21 and 31 and the upholstery materials 23 and 33. Furthermore, the shapes of the groove 51 and the ridge 61 may be circular in cross section as shown in FIG. 5, for example. In addition, various settings can be made without departing from the present invention.

[0028]

As described in detail above, in the chair according to the present invention, the upholstery fabric can be easily attached to and detached from the core material, and the force due to the elasticity of the cushion and the tension of the upholstery fabric can be applied. In addition to being able to reliably hold the connection, it is possible to improve durability because the influence of deterioration and dirt is small and failure does not occur easily, and the engagement position becomes constant. It is possible to maintain the appearance and usability of the back and seat in a constant and comfortable state.
These effects are achieved by the female attaching / detaching member having the concave-convex engaging portion provided with the groove on the core material side and the projecting ridge provided on the upholstery side. By configuring with, it is possible to obtain more reliably. Further, when the concave-convex engaging portion is composed of the groove extending in the longitudinal direction and the protrusion, it can be engaged with the groove even if the protrusion is displaced in the longitudinal direction, and positioning at the time of engagement. It is possible to simplify the attachment of the upholstery without requiring precision. Further, even if the side edge of the core material has a complicated shape, it is possible to reliably follow the engagement of the inner edge of the upholstery material.

As described above, the present invention has a particular effect that it is possible to easily and surely attach / detach the upholstery fabric and improve the durability.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway exploded perspective view showing a concavo-convex connecting portion in the seat of the embodiment.

FIG. 3 is a partially cutaway exploded perspective view showing a concavo-convex connecting portion on the back of the embodiment.

FIG. 4 is a side sectional view showing a concavo-convex connecting portion in the seat of the embodiment.

FIG. 5 is a side sectional view showing a concavo-convex connecting portion in a seat of another embodiment.

[Explanation of symbols]

 2 ... Seat 3 ... Back 4 ... Concavo-convex engagement part 5 ... Female attachment / detachment member 6 ... Male attachment / detachment member 21, 31 ... Core material 21a, 31a ... Side edge 22, 32 ... Cushion 23, 33 ... Upholstery 23b, 33b ... Inner edge 51 ... Groove 61 ... Projection 511 ... Interior 512 ... Opening 611 ... Tip 612 ... Base end

Claims (4)

[Claims] 1. A chair having a seat comprising a core material, a cushion arranged on an upper surface of the core material, and a lining material covering the core material and the cushion, The side edge of the core material and the inner edge of the upholstery fabric at a position corresponding to the side edge are detachably attached via a concave-convex engaging portion formed by elastic engagement between the protrusion and the groove. A chair characterized by being combined. 2. A chair having a back, comprising a core material, a cushion arranged in front of the core material, and an upholstery fabric covering the core material and the cushion, The side edge of the core material and the inner edge of the upholstery fabric at a position corresponding to the side edge are detachably attached via a concave-convex engaging portion formed by elastic engagement between the protrusion and the groove. A chair characterized by being combined. 3. The concave-convex engaging portion is fixed to a female attaching / detaching member fixed to a side edge of the core member, and is fixed to an inner edge of the upholstery member at a position facing the female attaching / detaching member. And a detachable member, wherein the female detachable member is formed with the elastically deformable groove having a wider inner portion than the opening portion, and the male detachable member has a distal end portion wider than the base end portion. Form a ridge,
3. The structure according to claim 1, wherein, when the protrusion is fitted in the groove, the tip end of the protrusion enters the inner part of the groove to engage with the groove. Chair. 4. The female attaching / detaching member is provided with the groove that substantially circulates a side edge of the core material, and the male attaching / detaching member has an inner edge of the upholstery fabric corresponding to the groove. The chair according to claim 3, wherein the chair is provided with the ridges that substantially circulate.