JP3099901U - Comfortable sofa - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive lightweight and comfortable sofa which can be comfortably seated for a long time and which is comfortable and lightweight.
SOLUTION: While a main body frame 1 is integrally formed of a relatively hard foamed resin, and a seating surface 11 of the main body frame 1 is formed with a hollow portion 12 having a predetermined depth, The seat floor frame 2 composed of an outer frame 21 that can be placed on the peripheral edge of the hollow portion 12 and a tension surface material 22 stretched inside the outer frame is fitted into the hollow portion 12 of the main body frame 1. By placing it, a comfortable sofa was realized.
[Selection] Figure 2

Description

The present invention relates to a sofa in which a body frame and a tension surface frame made of a foamed resin are combined, and a very seated seat configured by skillfully utilizing a moderate rubber elasticity of the foamed resin and a spring elasticity of the tension surface frame. It is about a comfortable sofa.

Conventionally, there has been known a seat chair in which a cushioning property is ensured by incorporating an elastic body (elastic mat) made of a foamed resin into a seat portion and a backrest portion.

Japanese Utility Model Laid-Open No. 4-120641.

However, in this conventional technique, the cushioning property is ensured by the interposition of the foamed resin elastic body, but the seat portion is in contact with the floor via the elastic body, and therefore, the characteristic characteristic of the foamed resin. Due to the rubber elasticity and feel of "comparable", sitting for a long time was accompanied by discomfort like stuffy buttocks and waist, and there was a drawback in terms of air permeability which is one element of good sitting comfort.

Similarly, even though it is through an elastic body, the load is directly applied to the floor, so if you sit for a long time, skin breathing will be hindered, your buttocks and lower back may be numb, sweaty, The comfort of sitting was not fully realized.

In addition, when replacing the internal elastic body due to aging, it took a considerable amount of time and effort to release the sewn part and replace it after replacement.

Further, in addition to the above-mentioned conventional technology, in the well-known sofa, there is a limitation in the material selection of the main body frame due to the material of the cushion material such as a coil spring and an S spring incorporated therein. The weight also tended to be bulky.

に 関 し て In this regard, conventionally known cushion materials for sofas have not only a heavy weight but also a high material unit price and, in turn, a product price, and it has been required to reduce the price as well as the weight of the material.

The present invention has been made in view of the above-mentioned disadvantages in the related art, and has been made in consideration of the above-mentioned inconveniences, and has good ventilation, good sitting comfort that can be seated for a long time without discomfort. The purpose is to provide a sofa.

Another object of the present invention is to provide a comfortable sofa that does not cause numbness or waist in the hips or tiredness even when sitting for a long time.

Another object of the present invention is to provide a comfortable sofa that can be replaced efficiently when the cushioning material is degraded or worn due to the shock absorption of the cushioning material over time.

Another object of the present invention is to provide a lightweight, durable, durable and comfortable sofa by incorporating a lightweight and elastic cushioning material into a lightweight main body frame. is there.

According to the present invention, as a basic solution to achieve the above-described object, the main body frame 1 is integrally formed of a relatively hard foam resin, and the seating surface 11 of the main body frame 1 has a predetermined depth. While the hollow portion 12 is formed, the seat floor frame 2 including an outer frame 21 that can be placed on the periphery of the hollow portion 12 and a tension sheet material 22 in the inner region of the outer frame is attached to the main body frame. By fitting and mounting in the recessed part 12, the buttocks do not directly contact the seating floor, and a comfortable sofa that can be comfortably seated for a long time is realized.

外 The outer frame 21 is detachably fitted into the hollow 12 to realize a comfortable sofa that is convenient for repairing and replacing the tension sheet material.

Next, as a specific solution, the foamed resin constituting the main body frame 1 is a foamed polyolefin-based resin such as foamed polystyrene, foamed polyethylene and foamed polypropylene in the above-described configuration, so that the foamed resin is compared with a lightweight structure. Realized a hard and inexpensive comfortable sofa.

Further, as a specific solution, in the above-described configuration, as the tension surface material 22 of the seat floor frame 2, belt-shaped belts 22a, 22a,. By using an elastic woven fabric in which ventilation gaps e, e,... Are formed between the weft bands, a comfortable sofa with excellent cushioning properties and excellent ventilation properties is realized.

ソ フ ァ The comfortable sitting sofa based on the present invention has a well-ventilated cushion structure in which the buttocks do not directly contact the sitting floor, and can be seated comfortably for a long time.

In addition, the body of the comfortable sofa based on the present invention is made of relatively hard and inexpensive material in spite of its light weight and rich structure, providing a durable and easy-to-use sofa at a low price. it can.

Furthermore, as the tension surface material of the seat floor frame of the sofa based on the present invention, a lightweight and inexpensive elastic woven fabric is used. Can be provided.

Similarly, it is possible to provide a sofa which is convenient for repair / replacement of the cushion material and which can reduce the cost involved in the work.

Hereinafter, embodiments of the present invention will be described in more detail with reference to illustrated examples.

FIG. 1 is a perspective view showing the internal structure of a sofa according to the present embodiment. In the drawing, what is indicated by reference numeral S is a sofa based on the present embodiment. Also, what is indicated by a broken line with reference numeral C is a sofa cover.

も の In the figure, the one designated by reference numeral 1 is a main body frame made of expanded polystyrene. The one designated by reference numeral 2 is a seat floor frame, which is composed of a wooden outer frame 21 and a tension surface member 22 stretched inside the outer frame.

As shown in the drawing, the tension surface material 22 is formed by plain weaving with belt-like belts 22a, 22a,..., And in this embodiment, an elastic fabric made of nylon tape fabric is used. ing.

In the figure, what is indicated by reference symbols e, e ... are ventilation gaps formed between the transboundary zones and the weft zones. Thereby, air permeability is ensured.

Next, in FIG. 2, what is indicated by reference numerals 11 and 12 are the seating surface and the hollow portion of the main body frame, respectively, and those indicated by reference numerals 21a and 21b are those shown in FIG. These are the outer edge and the fitting portion of the outer frame.

As shown in the figure, in order to attach the tension surface material 22 as a cushion material, the fitting portion 21b is fitted into the hollow portion of the main body frame, and the outer edge portion 21a of the seat frame 2 is attached to the seat. What is necessary is just to mount on the floor surface 11. Since the four corners of the fitting portion are supported by the corners of the hollow portion, the seat frame does not wobble or shift during use.

FIG. 3 is an exploded perspective view showing the internal structure of the sofa according to the present embodiment. The difference between the present embodiment and the above-described first embodiment is that a step surface 11a having a height sufficient to accommodate the outer edge portion is provided on the seat floor surface 11 of the main body frame 1, and the outer edge portion 21a of the seat floor frame 2 is provided. Is fitted into the main body together with the fitting portion. Accordingly, the cushion material is flush with the seat floor surface and does not shift due to external force, and a more stable cushion material can be provided as compared with the sofa according to the first embodiment.

The comfortable sofa based on the present invention is not limited to the above-described embodiment, but can be variously modified. For example, as shown in FIG. 4, a seat floor having a wooden outer frame is provided. By replacing the frame with a frame made of aluminum pipe, a more modern, sophisticated and lightweight structure can be obtained.

Similarly, as shown in FIG. 4, by providing ventilation holes V penetrating from the inside of the hollow portion to each side surface of the main body, the air permeability can be further improved.

As described above, the sofa according to the present invention is configured by combining a main body frame made of inexpensive foamed resin and a tension member having a breathable structure made of inexpensive elastic woven fabric. It is possible to provide an inexpensively simple and lightweight sofa that is easy to handle and easy to handle, and thus has high industrial applicability.

FIG. 1 is a transparent perspective view showing the internal structure of the sofa according to the first embodiment. FIG. 2 is an exploded perspective view showing an assembled state of the sofa based on the first embodiment. FIG. 3 is an exploded perspective view showing an assembled state of the sofa based on the second embodiment. FIG. 4 is a perspective view showing a modified example based on the present invention.

Explanation of reference numerals

C Sofa cover e Vent air gap S Sofa V vent 1 Main frame 11 Seat floor 11a Stepped surface 12 Recessed part 2 Seat floor frame 21 Outer frame 21a Outer edge 21b Fitting part 22 Tension surface material 22a Belt belt

Claims (4)

The main body frame 1 is integrally formed of a relatively hard foam resin, and a seating surface 11 of the main body frame 1 has a hollow portion 12 having a predetermined depth, while the hollow portion 12 has a predetermined depth. The seat floor frame 2 composed of the outer frame 21 that can be mounted on the periphery of the outer frame and the tension sheet 22 stretched in the inner region of the outer frame is fitted and mounted on the hollow portion 12 of the main body frame 1. A comfortable sofa characterized by: 2. The comfortable sofa according to claim 1, wherein the foamed resin constituting the main body frame 1 is foamed polystyrene. 2. The comfortable sofa according to claim 1, wherein the foamed resin constituting the main body frame 1 is a foamed polyolefin resin such as foamed polyethylene or foamed polypropylene. The belt-like belts 22a, 22a,... Are plain-woven in the longitudinal direction as the tension surface member 21 of the seat floor frame 2, and ventilation gaps e, e,. The comfortable sofa according to any one of claims 1 to 3, wherein the elastic fabric is formed.

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