KR101180839B1 - Chair seat cushoin and manufacturing method thereof - Google Patents

Abstract

PURPOSE: A cushion material for a chair seat and a manufacturing method thereof are provided to prevent overload from being applied to the body of a seat occupant. CONSTITUTION: A cushion material for a chair seat comprises a cushion body(10), a spring(20), and a cap(40). The cushion body of a block shape has constant elasticity. The spring is composed of a coil spring and is filled with foaming agent. The cap has a plurality of space protrusions on the side facing a supporting plate. The space protrusions are formed around a hole formed in the center of the cap.

Description

Cushion material for chair seat and manufacturing method thereof

The present invention relates to a cushioning material for a chair seat and a method of manufacturing the same, and more particularly, in order to prevent a case of a seated person's hips from hurting or falling legs due to an excessively high or low cushioning degree. The present invention relates to a cushioning material for a chair seat designed to be optimally designed and a method of manufacturing the same.

In general, a linked chair installed in a theater, theater, or performance hall has a seat supporting the hips and legs of the user from below, a leg supporting both sides of the seat, a rear seat of the seat, It is made of a structure having a backrest for supporting the back. In addition, the seat is usually composed of a cushioning material having a constant cushion, the cushioning material below the support plate (wood or plastic) and the outer cover (made of leather, etc.) surrounding the cushioning material.

On the other hand, as in the Korean Utility Model Registration No. 20-0165934 "Spring Health Cushion" in order to increase the cushioning efficiency of the cushioning material itself is often produced by embedding the spring in the cushioning material. That is, by laying a plurality of springs at regular intervals inside the cushioning body, which is the body of the cushioning material, to improve the cushioning efficiency of the cushioning material by using the elasticity of the cushioning body itself and the elasticity of the spring. Cushion material is used in many situations for seating chairs, such as theaters and performance halls.

By the way, in the case of cushioning material with a built-in spring, it is important to have an optimal cushioning degree under any condition, such as when a seated person is sitting for a long time. The conventional cushioning material as described above is an optimal cushion for allowing a seated person to be seated as comfortably as possible. There is a problem that it does not have a degree. In other words, if the cushion material that supports the seat and hips of the seated person is too hard, the hips or legs will hurt, and if the cushion material is too soft, the blood will not bleed properly. It is necessary to have an optimum degree of cushioning, and in particular, when sitting in a chair for a long time when watching a movie in a theater, it is necessary to design such a cushioning material to match the optimum degree of cushioning. In other words, in the case of a connected chair installed in a theater, the seated person is sitting for a relatively long time (usually about 2 hours), but if the cushion seat of the chair seat is too hard, the stiffness of the buttocks or legs hurts, and the cushion material is too much needed. Fluffy blood does not go through, so the legs are a common occurrence.

Therefore, as described above, even if the seated person is seated on a chair seat such as a theater for a long time, it is essential to design such that a phenomenon such as a pain in the hips or a bleeding leg does not occur. As the cushioning material itself does not have an optimal cushioning degree (ie, a cushion that is not too hard or too soft), it does not solve the problem of hip pain and leg numbness when sitting for a long time as described above. It is true.

The present invention is to solve the problems as described above, the object of the present invention is designed to have an optimal cushioning degree not too high or low of its own cushioning, so that the hips hurt or legs with low seating for a long time sitting It is to provide a cushioning material for a chair seat and a manufacturing method of a new structure that can bring about a variety of desirable results, such as to prevent the case of the occupant's body to go too hard.

According to the present invention for solving the above problems, a cushion body made of a block shape having a predetermined degree of cushioning; A spring embedded in the cushion body and cushioning with the cushion body; When the cushioning body is foam-molded with a foam material, the spring is integrally embedded in the cushioning body so that the cushioning body and the spring complementarily cushion the cushioning body so that the cushioning degree is too high or the cushioning degree is too low. It is prevented, The cushion material for chair seats provided with the optimal cushion degree is provided.

The spring may be configured as a coiled spring so that the foam is filled between the inner and outer parts of the spring and the respective coil portions of the spring as the foam body is molded by the foam.

The elastic force of the spring is characterized in that less than or equal to the elastic force of the cushion body.

The cushioning body supports the seat of the chair from the seat of the seat when the seat is different from the buttocks of the seat, and the spring which is installed in the seat supporting the seat of the seat of the seat is seated on the seat supporting the seat of the seat. It is characterized by a relatively larger number than the comparison.

A support plate may be provided on the bottom side of the cushion body, and a cap may be coupled to one end of the spring facing the support plate, and a hole may be formed in the cap and penetrates up and down.

The cap is provided with a plurality of space protrusions on the surface facing the support plate to form a gap between the support plate and the cap by the space protrusion, the space protrusion extends circumferentially based on the hole formed in the cap It is preferable that a drain hole is secured between the space protrusions.

Further, according to the present invention, in the cushion material manufacturing method for molding a cushioning body having a predetermined cushion degree by injecting and foaming a foam material into the cavity of the mold, the position of the upper inner wall surface of the cavity of the cavity inner wall surface of the mold Engaging one end of the spring with a plurality of engaging portions (4c) formed in the coupling; Injecting and foaming a foam material into the cavity of the mold is provided a cushioning material manufacturing method for a chair seat comprising the step of forming a cushion body in which the spring is integrally built.

A separate cap is coupled to one end of the spring facing the upper inner wall surface of the mold, and the cap is inserted into a coupling portion 4c formed on the upper inner wall surface of the mold to insert the spring into the mold. Suspending in the cavity, it is preferable to inject a foam material into the cavity of the mold to form a cushioning material of the structure in which the spring is built in the cushioning body.

The cap is provided with a coupling groove, the inner diameter of the coupling groove is relatively smaller than the outer diameter of the coupling portion 4c in the mold, the coupling groove of the cap of the protrusion shape of the mold It is preferable to configure the spring to be firmly suspended in the cavity of the mold while being fitted to the coupling portion 4c.

According to the present invention, the cushion body supports the buttocks (hips) and the leg portion of the seated person while the seated person is seated on the seat of the chair, and supports the seated person by the cushion of the cushion body itself and at the same time integrally with the cushioned body. Since the insert's built-in spring also serves as a complementary cushion to support the seated occupant by its own cushion, the cushioning material itself is too high and too soft or too low to provide optimal cushioning conditions. This can prevent phenomena such as pain in the buttocks and numbness of the legs even if the seated person is seated on the chair for a long time. In other words, when the cushioning force of the cushioning body acts, the spring integrally incorporated into the cushioning body also acts as a complementary cushioning function between the cushioning body and the cushioning body by its elastic force. Even if you are sitting and watching a movie for as little as one and a half hours or more and as long as two hours or more), it may be desirable to prevent the seated person from feeling pain in the buttocks or leg pain due to poor blood flow. have.

In addition, in the present invention, the spring is composed of a coiled spring, the foam material constituting the cushioning body forms a structure filled with each coil portion of the spring as well as the inside and outside of the spring, so that the noise of the spring when the seated person sits on the seat It also has the effect of minimizing (eg, squeaking, etc.).

1 and 2 are cross-sectional views showing a process of molding the cushioning material for a chair seat according to an embodiment of the present invention.
Figure 3 is a cross-sectional view showing the structure of the cushioning material for a seat according to an embodiment of the present invention
4 and 5 are cross-sectional views showing a process for molding the seat cushion material and seat cushion material according to another embodiment of the present invention;
6 and 7 are cross-sectional views showing a process of molding the cushioning material for a seat according to another embodiment of the present invention.
Figure 8 is a cross-sectional view showing the structure of the cushioning material for the seat produced through the molding process shown in Figures 6 and 7

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to the drawings, it includes a cushion body 10 made of a block shape having a predetermined degree of cushion, and a spring 20 embedded in the cushion body 10 and cushioning the cushion body 10 together, When the foam body 10 is foam-molded by the foam material, the spring 20 is integrally embedded in the cushion body 10 so that the self cushioning degree of the cushion body 10 and the self cushioning degree of the spring 20 correspond to the cushioning material. Its own cushioning degree can be adjusted to the optimum cushioning degree. That is, by inserting the spring 20 integrally into the cushioning material molded into a block shape, the cushioning material is too high and too soft or the cushioning is too low, so that the seat of the seater hurts or the legs are numb. It is characterized by being able to provide an optimal cushioning degree.

The cushion body 10 is molded into a block shape by injecting and foaming the foam material into the cavity of the mold (4) consisting of the upper mold (4a) and the lower mold (4b). In the present invention, the cushion body 10 may be made of a sponge material, and the cushion body 10 has a constant cushion degree as itself. In addition, the cushion body 10 may have a structure in which a plurality of pores are formed in the foaming characteristic.

The cushion body 10 is inserted into the spring 20 is integrally inserted into the insert. In the present invention, the spring 20 is composed of a coiled spring 20, the plurality of springs 20 are arranged in the cavity of the mold 4, and then the foam material is injected into the cavity of the mold 4 The foam 20 has a structure in which the spring 20 is embedded in the cushion body 10.

In particular, the present invention employs a method of injecting and foaming a foam material in a state in which the spring 20 is suspended in the cavity of the mold 4.

Specifically, the mold 4 has a structure in which the upper mold 4a is coupled to the lower mold 4b to form a plurality of coupling portions 4c on the upper inner wall surface of the cavity inner wall surface of the mold 4, and the coil The cap 40 is in the upper portion of the mold 4 in a state in which a separate cap 40 is coupled to one end of the spring 20 made of the mold spring 20 toward the upper inner wall surface of the mold 4. It fits in the coupling part 4c formed in the wall surface. The concave coupling groove 40a formed in the cap 40 is fitted to the engaging portion 4c in the form of a protrusion provided on the upper inner wall surface of the cavity 4 to be engaged.

Then, the spring 20 is suspended in the cavity of the mold 4 via the cap 40, and in this way, the spring 20 is suspended in the cavity of the mold 4. When the foam is injected into the foam and foamed, the spring 20 may be in the cushion body 10. Reference numeral 12 is an outer sheet of leather or the like surrounding the cushion body 10, and reference numeral 30 is a support plate disposed below the cushion body 10.

When the foamed material is foamed as described above to form a block-shaped cushion body 10 and at the same time the spring 20 is inserted into the cushion body 10 in an insert manner, the spring 20 composed of the coiled spring 20 It is possible to fill the foam material tightly between the inner and outer and each coil portion 22 of the spring (20). On the other hand, preferably, the elastic force of the spring 20 is configured to be less than or equal to the elastic force of the cushion body 10.

Therefore, according to the present invention, the cushion body 10 supports the buttocks and legs of the seated person while the seated person is seated on the seat of the chair, and at the same time the seated person is supported by the cushion of the cushion body 10 itself. Since the spring 20 integrally inserted into the body 10 also serves as a complementary cushion to support the seated occupant by its own cushion, the cushioning material itself is too high and too soft or too low. Optimum cushion conditions can be provided without feeling at all, which prevents such as a sore butt or leg swelling even if the seated person is seated for a long time. In other words, the present invention has a complementary cushioning function between the cushion body 10 as described above and the spring 20 integrally incorporated therein, and particularly for a long time (about 1 hour and a half to 2 hours, such as a theater). Even if you are sitting and watching a movie, the seated person may have a desirable result of preventing the pain of the buttocks, or the leg being numb because of poor blood on the leg. When the seated person sits on the seat, the cushion body 10 is compressed downward to support the seated person with elastic force, and at the same time, the spring 20 is integrally built on the cushion body 10 so that the spring body 20 itself is pressed down. The spring force 20 together with the cushioning body 10 forms a complementary cushioning state by reacting the elastic force toward the body. Thus, even when the seated person is tired, the legs are low or the hips are ache, even when sitting for a long time. It can be prevented.

In addition, as described above, the elastic force of the spring 20 is configured to be smaller than or equal to the elastic force of the cushion body 10, and the foam body when foaming the foam material so that the spring 20 is inserted into the cushion body 10 By the elastic force of the spring (20) and the elastic force of the spring (20) to complement each other it is possible to ensure the above-mentioned optimum cushion degree, and the guarantee of such an optimum cushion also to obtain the above-mentioned desirable effect more surely It becomes possible.

On the other hand, the spring 20 is composed of a coiled spring 20, the foam material constituting the cushioning body 10, as well as inside and outside of the spring 20, each coil portion 22 of the spring 20 Since the structure is filled in, the noise of the spring 20 (for example, the squeaking sound) is minimized when the seated person sits on the seat.

In addition, in the present invention, the cushion body 10 supports the buttocks and legs of the seated person when the seated person is seated on the seat of the chair, and springs 20 which are insulted at the part supporting the seated buttocks of the seater in the cushion body 10. ) Is made of a relatively larger number than the spring 20 in the part supporting the seat of the seated person. That is, since the load of the buttocks (hips) is higher than the load of the legs when sitting on the seat of the seated person, the buttocks of the cushion body 10 are supported to support the seated person's buttocks with the optimal cushioning degree and the legs with the optimal cushioning degree. The number of springs 20 to be installed in the portion to be mounted is configured to be relatively larger than the number of springs 20 to be installed in the portion on which the legs are mounted.

Therefore, since the optimal cushioning degree for each body part is secured when the seated person is seated on the seat, such a configuration also contributes more reliably to the prevention of hip pain or leg swelling.

In addition, the bottom of the cushion body 10 may be provided with a support plate 30 (which may be made of plastic or wood), one end of the spring toward the support plate 30 of both ends of the cap ( 40 is coupled, and the cap 40 may be formed with a hole 42 penetrated up and down. See FIGS. 4 and 5.

Therefore, the cushion body 10 may be formed of a plurality of pores in the interior of the foam molded by the foaming material, such pores to allow the cushion body 10 to be pressed smoothly as soon as the seated person sits on the seat In the present invention, by forming a hole 42 in the cap 40 coupled to the spring 20, the air generated when the cushion body 10 is pressed is the hole of the cap 40 ( 42) so that the noise can be minimized when sitting.

6 to 8, the cap 40 is provided with a plurality of space protrusions 44 on a surface facing the support plate 30, and the support plate 30 is formed by the space protrusions 44. A gap is formed between the cap 40 and the space protrusion 44 of the cap 40 is formed in a shape extending circumferentially with respect to the hole 42 formed in the center of the cap 40. The drain hole 42 is secured between the space protrusions 44, and when the cushion body 10 is pressed in accordance with the seating of the seated person, it is possible to exert a muffler effect that minimizes the noise of air deflection. In other words, the air generated when the seated person sits on the seat and the cushion body 10 is pressed out is first exited through the hole 42 of the cap 40, and the cap is formed by the space protrusion 44 of the cap 40. The air escapes secondarily to the relatively wider space secured between the 40 and the support plate 30, and then again to the relatively narrower discharge space secured between the space projections 44 of the cap 40. By going through the car, you can create a muffler effect that minimizes the noise from the air. 6 to 8, the coupling portion 4c of the mold 4 is preferably configured to have a concave coupling groove shape inside the cavity of the mold 4 so that a part of the cap 40 may be fitted. . This is to prevent the foam material from entering the hole 42 of the cap 40 and blocking the hole 42 when the cushioning body 10 is foamed by injecting the foam material.

On the other hand, the foam member in the mold 4 in the state in which the spring 20 is suspended in the cavity of the mold 4 by inserting the coupling groove of the cap 40 into the coupling portion 4c formed inside the cavity of the mold 4. Injection foaming to form the cushioning body 10, the inner diameter of the coupling groove formed in the cap 40 is configured relatively less than the outer diameter of the coupling portion 4c in the mold 4, the cap 40 When the coupling groove of the mold is forcibly fitted into the coupling portion 4c of the mold 4, the foaming action of the foam material is maintained in a state in which the spring 20 is firmly held in place while the foam material is injected and foamed. Since it can be made, it is possible to further increase the reliability in terms of the quality of the cushioning material.

The specific embodiments of the present invention have been described above. It is to be understood, however, that the scope and spirit of the present invention is not limited to these specific embodiments, and that various modifications and changes may be made without departing from the spirit of the present invention. If you have, you will understand.

Therefore, it should be understood that the above-described embodiments are provided so that those skilled in the art can fully understand the scope of the present invention. Therefore, it should be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, The invention is only defined by the scope of the claims.

4. Mold 10. Cushion Body
20. Spring 22. Coil
30.Support plate 40.Cap
42. Hole 44. Space Projection

Claims (9)

A block-shaped cushion body 10 having a predetermined degree of cushioning;
A spring (20) embedded in the cushion body (10) to cushion with the cushion body (10);
When foaming the cushion body 10, the spring 20 is integrally embedded in the cushion body 10 so that the elastic force of the spring 20 corresponds to the elastic force of the cushion body 10. By the cushion body 10 and the spring 20 is configured to perform a composite cushion action,
The spring 20 is formed of a coiled spring 20 to form the cushioning body 10 with a foam material, thereby forming the inner and outer parts of the spring 20 and each coil part of the spring 20. (22) is configured to fill the foam material,
A support plate 30 is provided on the bottom side of the cushion body 10, and a cap 40 is coupled to one end of the spring 20 facing toward the support plate 30 from both ends of the spring 20, and an upper and lower ends of the cushion 40. A through hole 42 is formed,
The cap 40 is provided with a plurality of space protrusions 44 on the surface facing the support plate 30, the gap is formed between the support plate 30 and the cap 40 by the space protrusions 44 The space protrusion 44 is configured to extend in a circumferential shape with respect to the hole 42 formed at the center of the cap 40, so that the drain hole 42 is secured between the space protrusions 44. Cushion material for chair seat characterized in that it became.
delete The method of claim 1,
The elastic force of the spring 20 is cushioning material for a chair seat, characterized in that configured less than or equal to the elastic force of the cushion body (10).
delete delete delete In the cushioning material manufacturing method of molding the cushioning body 10 which has a fixed cushion degree by inject | pouring and foaming a foam material into the cavity of the metal mold | die 4,
Fitting one end of a spring (20) to a plurality of engaging portions (4c) formed at positions of an upper inner wall surface of the cavity among the cavity inner wall surfaces of the mold (4);
And forming a cushioning body 10 in which the spring 20 is integrally formed by injecting and foaming a foam into the cavity of the mold 4.
A separate cap 40 is coupled to one end of the spring 20 facing the upper inner wall surface of the mold 4, and the cap 40 is connected to the upper inner wall surface of the mold 4. The spring 20 is suspended in the cavity of the mold 4 by inserting into a coupling part 4c formed in the mold, and a foam material is injected into the cavity of the mold 4 to insert the spring into the cushion body 10. A cushioning material manufacturing method for a chair seat, characterized by molding a cushioning material having a built-in structure (20).
delete The method of claim 7, wherein
The cap 40 is provided with a coupling groove, the inner diameter of the coupling groove is relatively less than the outer diameter of the coupling portion 4c in the mold 4, the coupling of the cap 40 A method for manufacturing a cushioning material for a chair seat, characterized in that the groove is held in the suspended state inside the cavity of the mold (4) while the groove is inserted into the coupling portion (4c) of the mold (4).

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