JPH07265564A - Facing structure of chair - Google Patents

Abstract

PURPOSE: To simplify assembling and to facilitate the separation of respective parts by fixing a belt-like fitting-in member in the state of being elastically deformable to the surrounding part of a covering member covering a substrate and a cushion member and force-fitting this fitting-in member to the rear surface of the substrate or an engaging groove formed on a side surface. CONSTITUTION: A seat part 1 is formed by disposing a cushion member 3 on the surface of a substrate 2, covering the substrate 2 and the member 3 with a covering member 4 and then stretching the member 4 on the rear surface or the side surface of the substrate 2. In this case, a flat part 7 and a fitting-in member 6 with a folding-back part 8 whose end part is fan-shaped are fixed to the peripheral part of the member 4 and the engaging groove for force-fitting the member 6 is formed at the rear surface or the side surface of the substrate 2. At the time of assembling, the substrate 2 and the member 3 formed integrally are covered with the member 4 and the whole of them is uniformly stretched and the member 6 is force-fitted to the engaging groove. Thus, the member 4 is uniformly stretched on the substrate 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a backrest structure or the like for mounting on a substrate, and more particularly to an improvement of a chair upholstery structure that is easily mounted on a substrate of a backing.

[0002]

2. Description of the Related Art Although the structure of a chair varies depending on its use and price, it is important for any chair to have excellent seating comfort, design and durability. In particular, in order to improve the sitting comfort of the chair and enhance the commercial value, many seats and backrests of the chair are covered with an upholstery member and a cushion member is arranged inside. There are various conventional methods for fixing the upholstery member to the seat portion or the backrest substrate. For example, a method of wrapping the substrate and the cushion member with an upholstery member and fixing an engaging member such as a pin to the substrate by penetrating the upholstery member, or a protruding portion both around the upholstery member and around the substrate. There is a method of forming the cushion member, sandwiching the cushion member, and fitting the engaging member into the protrusions of both members to fix the cushion member. There are various methods for fixing the cushion member, and a method of adhering the cushion member on the substrate and a method of adhering the upholstery member and the cushion member to form an integrated structure are often used. As a conventional example, a chair upholstery structure is disclosed in Japanese Examined Patent Publication No. 57-52048, Japanese Utility Model No. 64-6156, and the like.

[0003]

In the above-described chair upholstery structure, since the upholstery member, the board, and the engaging member are separate bodies, the number of components is large, and in the assembling process. It requires a lot of labor and skill of the operator. Further, in order to evenly stretch the upholstery member, it is necessary to perform work such as temporary fixing with a jig or the like. Furthermore, the engagement member may be exposed at the joint between the substrate and the upholstery member,
In some cases, the appearance was impaired. Moreover, in recent years, environmental pollution due to waste has become popular, and it is required to dispose of each material or to recycle it. However, the upholstery member and the cushion member are made up of materials made of different materials. In this case, the separation process was difficult.

The present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to provide an engaging member fixed to a peripheral portion of an upholstery member such as a seat of a chair or a backrest. By press-fitting the fitting member, which is described above, into the locking groove formed integrally with the substrate, the chair upholstery structure that simplifies assembly and facilitates separation of each component is provided.

[0005]

In order to achieve the above-mentioned object, the present invention provides a cushion member on the surface of a substrate, and wraps the substrate and the cushion member with a stretchable upholstery member. In an upholstery structure of a chair stretched on the substrate, an elastically deformable band-shaped fitting member is fixed to a peripheral portion of the upholstery member, and the fitting member can be press-fitted on a back surface or a side surface of the board. The groove is integrally formed.

In the present invention, the elastically deformable fitting member has a flat portion for fixing to the upholstery member and a folded portion capable of being press-fitted into the locking groove, and is integrally formed. Is desirable. Further, the length of the folded portion is preferably shorter than the depth of the locking groove.

[0007]

In the chair upholstery structure configured as described above, the cushion member is arranged on the surface of the substrate, and the substrate and the cushion member are wrapped with the stretchable upholstery member, and the upholstery member is attached to the substrate. In an upholstered structure of a chair to be stretched, an elastically deformable band-shaped fitting member is fixed to a peripheral portion of the upholstering member, and a locking groove into which the fitting member can be press-fitted is provided on a back surface or a side surface of the substrate. Since it is integrally molded, the assembling member is evenly stretched on the substrate only by press-fitting the fitting member into the locking groove at the time of assembly. Further, since no adhesive or the like is used for assembly, disassembly is easy.

The elastically deformable fitting member has a flat portion for fixing to the upholstery member and a folded-back portion capable of being press-fitted into the locking groove, and is integrally formed so that the fitting member is fitted. Since the structure of the member itself is simple and the flat portion is provided, sufficient adhesion can be achieved by closely contacting the upper member with this portion. In addition, since the tip of the folded-back portion is thin and gradually widens toward the end, press-fitting is performed smoothly, and since it is elastically deformable, the widened portion is deformed by press-fitting and is closely attached to the locking groove. Also plays a role as a retainer.

Further, by making the length of the folded-back portion of the elastically deformable fitting member shorter than the depth of the locking groove, the fitting member completely enters the locking groove after press fitting,
The seam between the substrate and the upholstery member becomes natural.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

The structure of the seat portion of the chair will be described with reference to FIGS. The seat portion 1 is formed by disposing the cushion member 3 on the surface of the substrate 2, enclosing the substrate 2 and the cushion member 3 with the upholstery member 4, and then stretching the upholstery member 4 on the back surface or the side surface of the substrate 2. . The substrate 2 is a molded product using a synthetic resin such as polypropylene, and is lightweight and highly productive. A plurality of ribs 5 are provided in a lattice pattern on the surface portion in order to increase rigidity. The cushion member 3 is formed of a cellular material such as polyurethane foam, and is integrally formed with the substrate 2 by double molding. Since the material is filled and solidified according to the shape of the substrate surface during double molding,
The cushion member 3 adheres so as to sandwich the rib 5, and the cushion member 3 does not drop off from the substrate 2 unless intentionally peeled off. Therefore, it is not particularly necessary to use an adhesive agent for bonding or screwing. Further, since the cushion member 3 has a very high flexibility, the cushion member 3 and the rib 5 are released from the close contact by being deformed, and can be peeled off from the substrate 2. Furthermore, since the cushion member 3 can be set in any shape according to the shape of the mold, the degree of freedom in design is high.

Next, the upper member will be described. The upholstery member 4 needs to be rich in flexibility, hygroscopicity, durability and the like, and the designability is also important for increasing the commercial value. The following materials are used as materials for satisfying such conditions. Examples thereof include leather, wool fiber, wool-cotton blend fiber, polyester fiber, and polyacrylic fiber. Leather has high quality, flexibility and durability. Wool and wool-cotton blended fibers are soft to the touch. Polyester and polyacrylic fibers are low cost and easy to maintain. Each of the fiber materials has a stretchable weave. By selecting each of the above materials according to the purpose of use of the chair, it is possible to enhance the commercial characteristics.

The upholstery member 4 is shaped so as to enclose the substrate 2 and the cushion member, and the fitting member 6 is fixed to the peripheral portion. The fitting member 6 is an integrally formed product made of an elastically deformable material such as rubber, plastic, or vinyl, and has a band shape as shown in FIG. Also,
The fitting member 6 has a flat portion 7 and a folded portion 8, and the end portion of the folded portion is widened toward the end. The folded portion 8 of the flat portion 7
On the surface opposite to the bending direction of, a plurality of fine ribs 10,
It is provided in the length direction 6 of the fitting member. The fitting member 6 is deformable corresponding to the deformation of the upholstery member 4. In order to further increase flexibility, cuts are made in some places on the flat part to help the deformation. In addition, the portion of the flat portion 7 facing the folded-back portion 8 and the back surface of the upholstery member 4 are brought into close contact with each other so that the flat portion 7 cannot be seen from the front surface of the upholstery member 4 and are fixed by sewing. There is.

A locking groove 9 for press-fitting the fitting member 6 is provided on the back surface or the side surface of the substrate 2. The locking groove 9 is provided at a position where the upper member 4 can be evenly stretched.
Since the substrate 2 is a molded product using the mold as described above,
It is easy to form irregularities such as grooves, and there is no need for post-processing such as inserting another part or performing a cutting process.
Further, the length A of the folded-back portion 8 of the fitting member is determined by the engagement groove 9
It is shorter than the depth B of.

Here, the assembly procedure will be described. First,
The substrate 2 and the cushion member 3 which are integrally formed are wrapped with the upholstery member 4, and the whole is pulled uniformly. Then, the fitting member 6 fixed to the peripheral portion of the upholstery member 4 is pressed into the locking groove 9. Since the corners of the folded portion 8 are tapered, it is easy to press fit them into the groove. At this time, the folded-back portion 8 of the fitting member
By pushing until it is completely hidden in the locking groove 9,
The seam between the upholstery member 4 and the substrate 2 is naturally connected. By press-fitting the fitting member 6 over the entire peripheral portion of the upholstery member, the upholstery member 4 is evenly stretched on the substrate 2, and fine adjustment of the tension is not necessary. Further, since the end of the folded-back portion is widened toward the end, it deforms and tightly adheres to the locking groove 9 at the time of press fitting, and a frictional force is generated to oppose the force in the pulling direction. Further, the rib 10 also comes into close contact with the locking groove 9 and functions as a stopper. Further, by inserting a tool such as a screwdriver having a thin tip between the fitting member 6 and the locking groove 9 and pushing the fitting member 6 out of the locking groove 9, the upholstery member 4 can be easily removed. .

The operation of the present embodiment configured as described above will be described below.

As a structure for tensioning the upholstery member 4,
Since only the engaging groove 6 formed integrally with the fitting member 6 and the seat portion 1 is used, the structure is simple and it is not necessary to use another engaging member after press fitting. As the fitting member, a band-shaped one-piece member is cut and used according to the length to be used, so that cost reduction can be achieved by mass production by extrusion molding or the like. In addition, since no special jig is required for attaching and detaching the fitting member 6, the replacement of the upholstery member can be easily performed.
Since the fitting member 6 is hidden in the locking groove 9, the seam between the upholstery member 4 and the substrate 2 is naturally connected. Since the upholstery member 4 and the cushion member 3 are separate bodies, when a load is applied to the seating surface, the cushion member 3 and the upholstery member 4 are deformed separately and unreasonable forces are applied to each other. Never. At the time of assembling the respective parts, since they are fixed only by fitting without using any adhesive or the like, it is easy to separate each material.

The upholstery structure of the chair according to the present invention can be used not only in the above-mentioned seat portion but also in a portion requiring an upholstery member such as a backrest portion or an armrest. Further, the upholstery member 4 can be stretched even if the cushion member 3 and the substrate 2 are not necessarily integrated. Further, depending on the use of the chair, it is possible to stretch the upholstery member directly on the substrate 2.

[0019]

As described above in detail, according to the upholstery structure of the chair according to the present invention, at the time of assembly, by simply press-fitting the fitting member into the engaging groove, the upholstery member is evenly formed. Since it is stretched on the board, it is easy to assemble and the burden on the operator is reduced. Further, since no adhesive or the like is used for assembly, the parts can be easily separated, and the service life of the chair can be extended by replacing only the worn parts.

Since the elastically deformable fitting member is integrally formed, the structure of the fitting member itself is simple, and since it has a band shape, cost reduction can be achieved by mass production by extrusion molding or the like. is there. Since the fitting member is provided with the flat portion, sufficient adhesion can be achieved only by bringing the fitting member into close contact with the upholstery member and sewing. Further, since the corners of the folded-back portion have a tapered shape and gradually widen toward the end, the press-fitting is smoothly performed and the assembling work is easy. Further, since it can be elastically deformed, the expanded part is deformed by press fitting and comes into close contact with the locking groove, and also plays a role as a retaining member due to the frictional force generated. Is unnecessary. With the above effects, the manufacturing cost can be suppressed.

Further, by making the length of the folded portion of the elastically deformable fitting member shorter than the depth of the locking groove, the fitting member completely enters the locking groove after press fitting,
Since the seam between the substrate and the upholstery member is naturally connected, the appearance has a sense of unity and enhances the sense of quality.

Further, since the assembly and disassembly are easy as described above, the product variation can be increased and the commercial property of the chair can be enhanced simply by changing the material of the upholstery member. Furthermore, since each part can be easily separated by material, measures against environmental pollution when it becomes a waste are also taken into consideration, and the degree of appeal to consumers is increased.

[Brief description of drawings]

FIG. 1 is a perspective view of a chair upholstery structure showing an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a schematic view of a fitting member used for the upholstery structure of the chair according to the embodiment of the present invention.

[Explanation of symbols]

 2 base plate 3 cushion member 4 upholstery member 5 fitting member 7 flat portion 8 folding portion 9 locking groove 10 rib A length of folding portion B depth of locking groove

Claims (3)

[Claims] 1. A cushion member is arranged on the surface of a substrate,
In a chair upholstery structure in which the base plate and the cushion member are wrapped in a stretchable upholstery member, and the upholstery member is stretched on the base plate, an elastically deformable band-like fitting member is provided around a periphery of the upholstery member. And a locking groove into which the fitting member can be press-fitted is integrally formed on the back surface or the side surface of the substrate. 2. The elastically deformable fitting member has a flat portion for fixing to the upholstery member and a folded portion capable of being press-fitted into the locking groove, and is integrally formed. The chair upholstery structure according to claim 1. 3. The upholstery structure for a chair according to claim 2, wherein the length of the folded-back portion of the elastically deformable fitting member is shorter than the depth of the locking groove.