KR100945641B1 - Jelly-type rubber cushion with shock absorption and slip resistance and method of manufacturing the cushion - Google Patents

Abstract

PURPOSE: A method for manufacturing jelly rubber cushion is provided to ensure high impact resistance and restoration characteristic. CONSTITUTION: A method for manufacturing jelly rubber cushion comprises: a step(S410) of putting rubber ingredient and solvent; a step(S420) of removing solvent to form rubber mat; a step(S430) of laminating the upper rubber mat on the rubber mat; and a step(S440) of covering a resultant product with a cover to form exterior.

Description

JELLY-TYPE RUBBER CUSHION WITH SHOCK ABSORPTION AND SLIP RESISTANCE AND METHOD OF MANUFACTURING THE CUSHION}

The present invention relates to a cushion for sitting on a floor or a chair, and more particularly, has a three-layer structure including a rubber mat between upper and lower rubber plates, and a rubber mat is formed in a gel state to disperse an impact. In addition, the present invention relates to a jelly rubber cushion that provides a restoring force by forming a groove pattern on an upper surface of a rubber mat and closing the inside of the groove pattern by an upper rubber plate to form a plurality of independent air cells.

A cushion is for sitting on a floor or a chair. Generally, a cushion refers to a cotton cushion that is made of cotton inside.

The cotton cushion absorbs the shock and provides the seating person with a soft and comfortable seat. This seating feeling is because the fibers inside the cotton cushion are formed like a net and give restoring force by continuously supplying air. However, it takes a lot of cotton to give a good seating feeling. In addition, if the cotton cushion continues to be used, the thickness of the cushion becomes thin and the seating feeling is easily lowered.

In addition, cotton cushion has no anti-slip function. Therefore, when there is a movement of the seated person, the cushion is not fixed and there is a problem of sliding according to the movement of the seated person.

In order to supplement the problem of cotton cushions, rubber cushions have recently been proposed, which are made of rubber and are not easily slipped.

However, in the case of rubber cushions, they are mainly made of a hard rubber material. Therefore, the seated person does not give a good seating feeling, and also has a disadvantage that the weight is heavier than the cotton cushion.

An object of the present invention is to include a rubber mat in a gel state between upper and lower rubber plates, and to form a groove pattern on the upper surface of the rubber mat and seal the inside through the upper rubber plate to use as a plurality of independent air cells, thereby providing a rubber cushion. In addition to the non-slip characteristics of the present invention, it is possible to provide a jelly rubber cushion having excellent shock absorption and recovery characteristics as a whole.

Another object of the present invention is to provide a jelly rubber cushion manufacturing method that can form the groove pattern of the upper surface of the rubber mat through the mold itself or through a stamping method.

Jelly rubber cushion according to an embodiment of the present invention for achieving the above object is a three-layer structure is bonded to the upper rubber plate and the lower rubber plate, respectively, on both sides of the rubber mat is formed with a groove pattern on the upper surface And a cover for forming a cushion inside and a cushion outside, wherein the rubber mat is formed in a gel state to disperse an impact, and the groove pattern of the rubber mat is sealed by the upper rubber plate so that a plurality of independent air are respectively provided. Forming a cell is characterized by providing a restoring force.

At this time, the rubber mat is butyl rubber, silicone rubber, acrylic rubber, hydrogenated NBR rubber, epichlorohydrin rubber, chlorosulfonated polyethylene rubber, chlorinated polyethylene rubber and butyl acrylate-ethyl acrylate-acrynotritrile It may be formed of a material selected from rubber.

Jelly rubber cushion manufacturing method according to an embodiment of the present invention for achieving the above another object comprises the steps of (a) injecting a composition comprising a rubber raw material and a solvent in a mold formed with a pattern opposite to the groove pattern on the surface; (b) removing the solvent included in the composition by a drying process to form a rubber mat in a gel state; (c) laminating a rubber mat having the groove pattern formed thereon on a lower rubber plate, and laminating an upper rubber plate on the rubber mat; And covering the resultant of step (c) with a cover to form a cushion appearance.

Jelly rubber cushion manufacturing method according to another embodiment of the present invention for achieving the above another object comprises the steps of (a) injecting a composition comprising a rubber material and a solvent in a flat surface mold; (b) forming a groove pattern on the surface of the composition using a polymer stamp replicated from a metal master stamp, the pattern being formed on the surface opposite to the groove pattern; (c) removing the solvent included in the composition by a drying process to form a rubber mat in a gel state; (d) laminating a rubber mat having the groove pattern formed thereon on a lower rubber plate, and laminating an upper rubber plate on the rubber mat; And (e) covering the resultant of step (d) with a cover to form a cushion appearance.

At this time, in order to facilitate the release of the polymer stamp and the composition or rubber mat, it is preferable that the surface of the polymer stamp is coated with a volatile lubricant.

The jelly rubber cushion according to the present invention includes a rubber mat in a gel state in the upper rubber plate and the lower rubber plate state to give a seated person a good seating feeling, and can also disperse the impact. In addition, a groove pattern is formed on the upper surface of the rubber mat, and the inside of the groove pattern is sealed by the upper rubber plate, thereby providing a restoring force by forming a plurality of independent air cells.

In addition, the jelly rubber cushion according to the present invention has the advantage that the rubber mat in the middle has excellent adhesiveness as a gel state, the upper rubber plate and the lower rubber plate can be easily bonded without a separate adhesive.

In addition to the rubber cushion according to the present invention, the upper rubber plate and the lower rubber plate is made of a rubber material, there is an anti-slip effect.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, only the present embodiments to make the disclosure of the present invention complete, and common knowledge in the art to which the present invention pertains. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, with reference to the accompanying drawings, a rubber cushion excellent in shock absorption and recovery characteristics according to a preferred embodiment of the present invention and a manufacturing method thereof will be described in detail.

1 is a cross-sectional view showing a jelly rubber cushion excellent in shock absorption and recovery properties according to an embodiment of the present invention.

Referring to FIG. 1, the illustrated cushion includes a lower rubber plate 110, a rubber mat 120, an upper rubber plate 130, and a cover 140. At this time, the lower rubber plate 110, rubber mat 120 and the upper rubber plate 130 constitute the interior of the cushion, the cover 140 forms the appearance of the cushion.

The lower rubber plate 110 and the upper rubber plate 130 are bonded to the central rubber mat 120 in the shape of a flat plate. Specifically, the lower rubber plate 110 is bonded to the lower surface of the rubber mat 120, the upper rubber plate 130 is bonded to the upper surface of the rubber mat 120. Through this, the interior of the cushion has a three-layer structure. In the present invention, the three-layer structure inside the cushion is just one example, and may further include another rubber plate or rubber mat inside the cushion.

At this time, the rubber mat 120 is formed in a gel state, such as jelly (jelly). In the present invention, the central rubber mat 120 is in a gel state to disperse the shock when the user sits on the cushion to alleviate the shock, and at the same time to provide a fluffy feeling, that is, a good seating feeling.

In addition, a groove pattern 121 having a lattice shape is formed on an upper surface of the rubber mat 120. When the upper rubber plate 130 and the rubber mat 120 are bonded to each other, the groove pattern 121 forms a plurality of independent air cells by sealing the inside thereof.

The independent plurality of air cells first divides the rubber mat 120 into a plurality of regions to prevent the rubber mat in the gel state from being oriented to one side. When the rubber mat in the gel state is pulled to one side, the adhesive force between the upper rubber plate 130 and the rubber mat 120 is lowered, and when the rubber cushion is used for a long time, sliding may occur due to a decrease in frictional force. However, the plurality of independent air cells may prevent the rubber mat 120 from being squeezed to one side to prevent the decrease in adhesion between the rubber mat 120 and the upper rubber plate 130.

In addition, a plurality of independent air cells impart restoring force by air to maintain the original shape of the cushion even after long use.

In addition, when a plurality of independent air cells are seated on a rubber cushion, the user may provide a good seating comfort to the user sitting on the cushion by relieving an impact, such as an air shoe applied to the sole or the bottom when the user sits on the rubber cushion.

The groove pattern 120 for forming the plurality of independent air cells may be a square groove pattern or a circular groove pattern, and may also be a groove pattern of various shapes.

On the other hand, the rubber mat 120 is butyl rubber, silicone rubber, acrylic rubber, hydrogenated NBR rubber, epichlorohydrin rubber, chlorosulfonated polyethylene rubber, chlorinated polyethylene rubber, butyl acrylate-ethyl acrylate- It may be formed of rubber such as acrylonitrile rubber, and these may be used alone or in combination of two or more thereof.

Among the rubbers, it is more preferable to form the rubber mat 120 using a butyl-based rubber that is light, has excellent adhesion, and has excellent anti-slip characteristics.

The lower rubber plate 110 and the upper rubber plate 130 may be formed using a rubber of a different material from the rubber mat 120, but considering the adhesive force, etc., the same rubber material as the rubber mat 120 is used. It is preferable to form.

Therefore, when the rubber mat 120 is formed using butyl rubber, the lower rubber plate 110 and the upper rubber plate 130 is also formed using the same butyl rubber as the rubber mat 120 of the cushion Most preferred in view of weight, adhesion and anti-slip properties.

The upper rubber plate 130 may be formed thicker than the lower rubber plate 110 when the user is seated on the cushion, since the upper rubber plate 130 is directly impacted by the lower rubber plate 110.

Considering the role of the lower rubber plate 110 and the upper rubber plate 130 and the role of the central rubber mat 120, the overall thickness of the cushion may be as follows. The central rubber mat 120 may be formed in a range of about 5 mm to 20 mm to give a good seating feeling when the user sits down. In addition, the upper rubber plate 130 is about 2 ~ 3mm, the lower rubber plate 110 may be formed about 1 ~ 2mm slightly thinner than the upper rubber plate (110).

2 is a plan view showing an example of a rubber mat applied to the rubber cushion according to the present invention.

The groove pattern 121 of the rubber mat 120 shown in FIG. 2 is a square groove pattern, and many grooves are formed in each direction based on the center of the cushion. At this time, the groove pattern 121 is sealed by the upper rubber plate 130 to form a plurality of air cells as described above.

3 is a perspective view showing that the lower rubber plate, the rubber mat and the upper rubber plate are bonded.

Referring to FIG. 3, the upper rubber plate 130 and the lower rubber plate 110 are adhered to the upper and lower surfaces of the rubber mat 120 based on the central rubber mat 120.

At this time, the rubber mat in the center of the gel state 120 is excellent in the adhesive properties, it does not require a separate adhesive when bonding the upper rubber plate 130 and the lower rubber plate 110, respectively.

In addition, the lower rubber plate 110, the central rubber mat 120 and the upper rubber plate 130 is a rubber material, respectively, compared to the conventional cotton cushion has a strong friction force, there is a property that does not slip well.

Figure 4 is a flow chart showing an embodiment of a rubber cushion manufacturing method according to the present invention.

Referring to FIG. 4, the cushion manufacturing method according to the present embodiment includes a composition input step (S410), a rubber mat forming step (S420), a rubber mat bonding step (S430), and a covering step (S440).

In the composition input step (S410), a composition including a rubber raw material and a solvent is added to a mold in which a pattern opposite to the groove pattern is formed on the surface. The solvent can easily dissolve the rubber material, so that the solvent can be widely used water, acetone, ethanol and the like.

The rubbers include butyl rubber, silicone rubber, acrylic rubber, hydrogenated NBR rubber, epichlorohydrin rubber, chlorosulfonated polyethylene rubber, chlorinated polyethylene rubber, butyl acrylate-ethyl acrylate-acrylonitrile rubber, and the like. Can be.

In the step of forming a rubber mat in a gel state (S420), the solvent contained in the composition is removed to some extent through a drying process to form a rubber mat in a gel state. Drying may proceed by heating the mold.

At this time, since a pattern opposite to the groove pattern to be formed on the surface of the mold is formed, a desired groove pattern is formed on the upper surface of the formed rubber mat.

In the rubber mat bonding step (S430), the lower rubber plate and the upper rubber plate are adhered to the lower and upper surfaces of the gel mat in which the groove pattern is formed through the processes S410 and S420, respectively. At this time, as described above, the upper rubber plate may be thicker than the lower rubber plate.

The adhesion of the rubber mat and the upper rubber plate and the lower rubber plate does not require separate adhesion, and is to be adhered through the adhesive properties of the rubber mat.

Specifically, the rubber mat is laminated on the lower rubber plate, and the upper rubber plate is laminated on the rubber mat. At this time, the lower rubber plate may be laminated first, and the upper rubber plate may be laminated first. Applying pressure during lamination can further increase the adhesion.

When the rubber mat bonding step (S430) is completed, the interior of the cushion having a three-layer structure is completed.

Finally, in the covering step (S440) to cover the inside of the cushion with a cover made of a material such as cotton or synthetic fibers, to form a cushion appearance.

In this embodiment, in order to form a rubber mat having a groove pattern on the surface, a mold having a pattern opposite to the groove pattern on the surface was used. In this case, there is an advantage that a rubber mat having a groove pattern is formed in the mold itself without a separate groove pattern forming process.

Figure 5 is a flow chart showing another embodiment of the rubber cushion manufacturing method according to the present invention.

Referring to Figure 5, the cushion manufacturing method according to the present embodiment is a composition input step (S510), the groove pattern forming step through the stamping step (S520), the rubber mat forming step of the gel state (S530), rubber mat bonding step (S540) ) And a covering step (S550).

In the composition input step (S510), a composition including a rubber raw material and a solvent is added to a mold having a flat surface. The solvent can easily dissolve the rubber material, so that the solvent can be widely used water, acetone, ethanol and the like.

The rubbers include butyl rubber, silicone rubber, acrylic rubber, hydrogenated NBR rubber, epichlorohydrin rubber, chlorosulfonated polyethylene rubber, chlorinated polyethylene rubber, butyl acrylate-ethyl acrylate-acrylonitrile rubber, and the like. Can be.

In the step of forming a groove pattern through stamping (S520), a groove pattern is formed on the surface of the composition by pressing the stamp onto the composition using a stamp having a pattern opposite to the groove pattern on the surface.

Although the stamp may be a metal stamp, it is more preferable that the stamp is made of a material such as a polymer whose pattern is duplicated from the metal master stamp. The reason is that when the pattern of the stamp is damaged, the metal stamp is relatively complicated and expensive to manufacture, while the duplicate stamp such as polymer can be produced only once from the master stamp, so it can be produced simply. This is because a stamp can be produced.

The surface of the stamp may be coated with a volatile lubricant. This is to smoothly separate the stamp from the rubber mat or the like. That is, since the stamp and the rubber mat may be stuck in the stamping process or the drying process, a volatile lubricant is coated on the surface of the stamp, so that the stamp and the rubber mat can be separated smoothly. In addition, the volatile lubricant, even if left on the surface of the rubber mat after stamp separation, is volatile and easy to remove it does not reduce the adhesiveness of the rubber mat in the gel state. Such volatile lubricants may be commercially available such as ALL-606 (manufactured by Ilshin Chemex) or WD-40 (manufactured by Beck's Intercorporation). This may be applied not only to the surface of the stamp but also to the surface of the mold, and to the surface of the mold in the above-described embodiment of FIG. 4.

In the step of forming a rubber mat in a gel state (S530), the solvent included in the composition is removed to some extent through a drying process to form a rubber mat in a gel state. The drying may be performed by applying heat to the mold. In this case, the drying process may be performed by applying heat to the mold while the stamp is continuously compressed. Through this, a groove pattern is formed on the upper surface of the rubber mat.

In the rubber mat bonding step (S540), the lower rubber plate and the upper rubber plate are adhered to the lower and upper surfaces of the gel mat in which the groove pattern is formed through the processes S510 to S530, respectively. Then, in the covering step (S550) by covering the inside of the cushion using a cover to form the appearance of the cushion, to produce a final cushion. These processes are the same as the above-described rubber mat bonding step (S430) and covering step (S440) of Figure 4 will not be described in detail.

In this embodiment, the groove pattern is formed on the surface of the rubber mat by using stamping. This further includes forming a groove pattern than the embodiment shown in FIG. 4. However, in the case of the embodiment shown in Figure 4 because the pattern is formed on the mold surface, the mold can be easily damaged, there is a disadvantage that the mold itself must be replaced when the mold is damaged. On the other hand, in the present embodiment, by using a mold having a flat surface, the damage rate of the mold is relatively low, and in the case of the duplicated polymer stamp, even if the pattern is damaged, the master stamp can be easily replicated.

As described above, the rubber cushion having excellent shock absorption and recovery characteristics according to the present invention has an excellent anti-slip function due to the frictional force because the upper rubber plate and the lower rubber plate are made of a rubber material.

In addition, since the intermediate rubber mat is in a gel state, the impact dispersion can be easily performed, and there is an advantage in that the upper rubber plate and the lower rubber plate can be adhered without a separate adhesive through excellent adhesiveness. In addition, the groove pattern is formed on the upper surface of the rubber mat and is closed by the upper rubber plate, thereby forming a plurality of independent air cells, thereby providing a seating comfort and providing resilience to the seated person.

Although the above has been described with reference to one embodiment of the present invention, various changes and modifications can be made at the level of those skilled in the art. Such changes and modifications may belong to the present invention without departing from the scope of the present invention. Therefore, the scope of the present invention will be determined by the claims described below.

1 is a cross-sectional view showing a jelly rubber cushion with a shock absorbing function and an anti-slip function according to an embodiment of the present invention.

2 is a plan view showing an example of a rubber mat applied to the rubber cushion according to the present invention.

3 is a perspective view showing that the lower rubber plate, the rubber mat and the upper rubber plate are bonded.

Figure 4 is a flow chart showing an embodiment of a jelly rubber cushion manufacturing method according to the present invention.

Figure 5 is a flow chart showing another embodiment of a jelly rubber cushion manufacturing method according to the present invention.

Claims (9)

delete delete delete delete (a) injecting a composition comprising a rubber material and a solvent into a mold having a pattern opposite to the groove pattern on a surface thereof; (b) removing the solvent included in the composition by a drying process to form a rubber mat in a gel state; (c) laminating a rubber mat having the groove pattern formed thereon on a lower rubber plate, and laminating an upper rubber plate on the rubber mat; And (d) covering the resultant of step (c) with a cover to form a cushion appearance; jelly rubber cushion manufacturing method comprising a. (a) injecting a composition comprising a rubber raw material and a solvent into a mold having a flat surface; (b) forming a groove pattern on the surface of the composition using a polymer stamp replicated from a metal master stamp, the pattern being formed on the surface opposite to the groove pattern; (c) removing the solvent included in the composition by a drying process to form a rubber mat in a gel state; (d) laminating a rubber mat having the groove pattern formed thereon on a lower rubber plate, and laminating an upper rubber plate on the rubber mat; And (e) covering the resultant of step (d) with a cover to form a cushion appearance; jelly rubber cushion manufacturing method comprising a. The method according to claim 5 or 6, The rubber mat is butyl rubber, silicone rubber, acrylic rubber, hydrogenated NBR rubber, epichlorohydrin rubber, chlorosulfonated polyethylene rubber, chlorinated polyethylene rubber and butyl acrylate-ethyl acrylate-acrylonitrile rubber Jelly rubber cushion manufacturing method, characterized in that at least one of the materials. The method according to claim 5 or 6, And the upper rubber plate is thicker than the lower rubber plate. The method of claim 6, Jelly rubber cushion manufacturing method characterized in that the surface of the polymer stamp is coated with a volatile lubricant.

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