TW202033403A - Seat cushion having shock absorber and method for manufacturing the same wherein the seat cushion having a shock absorber includes a seat cushion bottom shell, a shock absorber unit, and a covering unit - Google Patents

Abstract

A seat cushion having a shock absorber and a method for manufacturing the same are provided, the seat cushion having a shock absorber includes a seat cushion bottom shell, a shock absorber unit, and a covering unit. The shock absorber unit includes a shock absorber and a covering body. The shock absorber is provided with a foam layer. The covering body is made of a gel material and covers the foam layer. When a force is applied, the shock energy can be absorbed by compressing the foam layer to achieve the effect of shock absorption, and the covering body is capable of distributing the force transferred to the buttocks of a user to improve comfort. The method for manufacturing the seat cushion having a shock absorber is to first prepare a shock absorber mold, a gel material, and a plurality of expanded thermoplastic polyurethane particles to manufacture a shock absorber unit. The shock absorber unit is then placed on a seat cushion bottom shell and injected the foamed plastic material to obtain the seat cushion having a shock absorber that is highly comfortable and has a shock absorption effect.

Description

Seat cushion with shock-absorbing body and manufacturing method thereof

The invention relates to a seat cushion, in particular to a seat cushion with a shock absorber.

A general seat cushion unit usually has a soft support pad placed on the user's buttocks to provide a soft contact surface and improve the user's comfort. However, the support pad cannot provide the effect of shock absorption.

Referring to Figure 1, a sports shoe disclosed in Chinese Patent Grant Publication No. CN 103371564 B includes a body 12 and a sole 11 connected to the body 12. The sole 11 includes two supporting pad portions 111 and a surrounding portion 112. Each supporting pad portion 111 is made of a material including several foamed thermoplastic polyurethane particles. The surrounding portion 112 is made of a material that does not include foamed thermoplastic polyurethane particles.

When in use, the shoe sole will compress the foamed thermoplastic polyurethane particles of the support cushion 111 when it is stressed, and thereby absorb vibration energy, thereby reducing the impact force transmitted to the user’s foot. Therefore, it has the effect of shock absorption. However, due to the relatively high hardness of the support cushion portions 111, the problem of poor comfort is likely to occur, and therefore cannot be directly applied to the cushion unit.

Therefore, an object of the present invention is to provide a cushion with a shock-absorbing body with high comfort and shock absorption effect.

Another object of the present invention is to provide a method for manufacturing a cushion with a shock-absorbing body with high comfort and shock absorption effect.

Therefore, the present invention has a cushion with a shock-absorbing body, including a cushion bottom shell, a shock-absorbing body unit, and a covering unit.

The seat cushion bottom shell includes a top surface. The shock-absorbing body unit is connected to the top surface of the bottom shell of the seat cushion, and includes a shock-absorbing body and a covering body. The shock absorber is connected to the bottom shell of the seat cushion. The shock-absorbing body has at least one shock-absorbing group arranged along an axis. The at least one shock-absorbing group has a first gel layer made of gel material, and a foam layer connected to the first gel layer along the axis. The foamed layer is formed by several uniformly distributed foamed thermoplastic polyurethane particles. The covering body has a second gel layer made of gel material and connected to the shock-absorbing body along the axis. The second gel layer is condensed into one body with the first gel layer of the at least one shock-absorbing group.

The covering unit is made of foamed plastic material. The covering unit is connected to the seat cushion bottom shell and covers the top surface of the seat cushion bottom shell and covers the shock-absorbing body unit.

The method for manufacturing a seat cushion with a shock-absorbing body of the present invention includes the following steps:

(A) Prepare a shock-absorbing body mold, a gel material, several foamed thermoplastic polyurethane particles, a cushion bottom shell, and a foamed plastic. The shock-absorbing body mold includes a one-way opening and an upward opening ’S accommodation space;

(B) Making a shock absorber unit, including (B1) performing at least one filling operation. Each filling operation includes (B1-1) injecting part of the gel material into the accommodating space to form a first gel layer, and (B1-2) injecting part of the foamed thermoplastic polyamine Fat particles are evenly distributed on the surface of the first gel layer to form a foam layer connected to the first gel layer along the axis. (B2) Inject part of the gel material into the accommodating space and wrap the foam layer to form a second gel layer connected to the foam layer along the axis. (B3) After the first gel layer and the second gel layer of at least one filling operation are solidified, the first gel layer, the foam layer and the second gel layer of the at least one filling operation are The suspension body unit is formed. Take out the suspension body unit from the suspension body mold.

(C) Place the shock absorber unit on the bottom shell of the seat cushion. The foamed plastic is injected to cover the top surface of the seat cushion bottom shell and wrap the shock-absorbing unit.

The effect of the present invention is that the seat cushion with a shock absorber is provided with the foam layer of the at least one shock absorber to absorb vibration energy by compressing the foam layer to achieve the effect of shock absorption, and by The covering body disperses the force transmitted to the user's buttocks to improve comfort. The seat cushion with the shock-absorbing body can be manufactured by using the method for manufacturing the seat cushion with the shock-absorbing body.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.

Referring to FIGS. 2, 3 and 4, an embodiment of a seat cushion with a shock absorber of the present invention is suitable for placement on the hip of a user 9. The seat cushion with a shock-absorbing body includes a cushion bottom shell 2, two shock-absorbing body units 3, and a covering unit 4.

The seat cushion bottom shell 2 includes a top surface 21.

The shock-absorbing body units 3 are connected to the top surface 21 of the seat cushion bottom shell 2 and are suitable for corresponding to the left and right sides of the user's 9 buttocks.

Since the structures of the shock-absorbing body units 3 are the same, the only difference is that the shock-absorbing body unit 3 on the right in FIG. 2 extends along the first axis L1, while the shock-absorbing body unit 3 on the left is along the The second axis L2 extends. Therefore, the structure of the shock-absorbing body unit 3 on the right side is taken as an example to describe the structure.

Each shock-absorbing body unit 3 includes a shock-absorbing body 31 and a covering body 32. The shock-absorbing body 31 is connected to the seat cushion bottom shell 2. The shock-absorbing body 31 has three shock-absorbing groups 311 arranged along a first axis L1. Each shock absorber group 311 has a first gel layer 312 made of gel material, and a foam layer 313 connected to the first gel layer 312 along the first axis L1. The foamed layer 313 is formed by several evenly distributed foamed thermoplastic polyurethane particles. In this embodiment, the gel material is made of silicone, and each foamed thermoplastic polyurethane particle is an ellipsoid, but it is not limited thereto.

The following is a description of the structure of the shock absorbers 311 from bottom to top.

The first gel layer 312 of the shock-absorbing assembly 311 located at the bottom is connected to the seat bottom shell 2 along the first axis L1, and the foam layer 313 is connected to the seat cushion bottom shell 2 along the first axis L1 On the first gel layer 312.

The first gel layer 312 of the shock-absorbing group 311 in the middle covers the foam layer 313 of the part of the shock-absorbing group 311 located at the bottom along the first axis L1, and the shock-absorbing group 311 in the middle The foam layer 313 of the group 311 is connected to the first gel layer 312 of the shock-absorbing group 311 in the middle along the first axis L1.

The first gel layer 312 of the shock-absorbing group 311 located at the uppermost part covers the foamed layer 313 of the part of the shock-absorbing group 311 located in the middle along the first axis L1, and the uppermost shock-absorbing group 311 The foam layer 313 of the shock assembly 311 is connected to the first gel layer 312 of the shock-absorbing assembly 311 located at the top along the first axis L1.

The first gel layer 312 of the shock-absorbing group 311 located at the bottom, the first gel layer 312 of the shock-absorbing group 311 located in the middle, and the first gel layer 312 of the shock-absorbing group 311 located at the top The glue layers 312 are condensed into one body.

The covering body 32 has a second gel layer 321. The second gel layer 321 is made of a gel material and is connected to the shock-absorbing group 311 of the shock-absorbing body 31 along the first axis L1. on. In this embodiment, the gel material is made of silicone, but it is not limited to this. The second gel layer 321 is condensed into one body with the first gel layers 312 of the shock-absorbing body 31.

The covering unit 4 is connected to the seat cushion bottom shell 2 and covers the top surface 21 of the seat cushion bottom shell 2 and covers the shock-absorbing body unit 3, and is suitable for placing on the buttocks of the user 9. In this embodiment, the covering unit 4 is made of foamed plastic, but it is not limited to this.

In use, the buttocks of the user 9 are placed on the covering unit 4 as shown in FIG. 4 and should wait for the second gel layer 321. When the cushion with shock absorber is under force, the foamed thermoplastic polyurethane particles corresponding to the force point will be compressed and shortened by the force, and the foamed thermoplastic polyurethane particles located on both sides of the force point will be The foamed thermoplastic polyurethane particles are respectively inclined outwardly and deformed. Since the material of the foamed thermoplastic polyurethane particles is relatively hard, most of the vibration energy will be absorbed during the above-mentioned compression and deformation process, thus having the effect of damping. In addition, since the material of the second gel layers 321 is soft, the remaining vibration energy can be dispersed to avoid the power transmitted to the user 9 from being too concentrated, thereby improving the comfort of the user 9.

It should be noted that in this embodiment, the suspension body 31 of each suspension body unit 3 includes three suspension groups 311. However, in other variations, the suspension body 31 may also only include One, two, or more than four suspension groups 311.

It is worth mentioning that in this embodiment, the number of the shock absorber units 3 is two. However, in other implementations, the cushion of the shock absorber may also include only one shock absorber. The body unit 3 can achieve the same effect as long as the shock-absorbing body unit 3 is set in a position corresponding to the hip of the user 9.

It should be particularly noted that in this embodiment, the first gel layer 312 and the second gel layer 321 are made of silicone material. However, in other embodiments, the first gel layer The gel layer 312 and the second gel layer 321 can be made of different materials, and can also have different hardnesses.

Therefore, by providing the foamed layers 313, the cushions with shock absorbers can compress the foamed layers 313 to absorb shock energy when the seat cushion is stressed, so that it has a shock absorption effect. By providing the second gel layer 321, the force transmitted to the user 9's buttocks can be dispersed, so the purpose of the invention can be achieved.

Referring to FIGS. 5 and 6, an embodiment of the method of manufacturing a seat cushion with a shock absorber of the present invention includes steps 51 to 53.

Step 51: Prepare a shock absorber mold 6, the gel material, the foamed thermoplastic polyurethane particles, the seat cushion bottom shell 2, and a foamed plastic. The shock-absorbing body mold 6 includes a accommodating space 61 that is unidirectionally opened and the opening faces upward. In this embodiment, the gel material is made of silicone, and each foamed thermoplastic polyurethane particle is an ellipsoid, but it is not limited thereto.

Step 52: Make two suspension units, including the following steps one to four:

1. Perform three filling operations, each of which includes (1) Inject part of the gel material into the accommodating space 61 to form a first gel layer 312. (2) Distributing part of the foamed thermoplastic polyurethane particles uniformly on the surface of the first gel layer 312 to form a foamed layer connected to the first gel layer 312 along an axis L 313.

During the second or more filling operations, the first gel layer 312 in item (1) is incompletely covering the foam layer 313 formed by the previous filling operation along the axis L, and adjacent The first gel layers 312 formed by the two filling operations are condensed into one body.

2. Inject part of the gel material into the accommodating space 61 and cover the foam layer 313 to form a second gel layer 321 connected to the foam layer 313 along the axis L. The second gel layer 321 and the first gel layers 312 are condensed into one body.

3. After the first gel layer 312 and the second gel layer 313 are solidified, the first gel layer 312, the foam layer 313 and the second gel layer 321 form a shock absorber The suspension body unit 3 can be taken out from the suspension body mold 6.

4. Repeat the above steps 1 to 3 to complete the second suspension unit 3.

Step 53: Place the shock-absorbing body units 3 on the seat cushion bottom shell 2 and inject the foamed plastic to form the bag covering the top surface of the seat cushion bottom shell and the shock-absorbing body units Cover unit 4.

It should be particularly noted that in this embodiment, step 52 is to perform three filling operations. However, in other modified examples, one, two, or more than four filling operations may be performed.

The above-mentioned continuous steps can be used to produce the cushion with the shock absorber. In summary, the present invention has a cushion with a shock-absorbing body and its manufacturing method, which can indeed achieve the purpose of the invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to Within the scope of the patent for the present invention.

2: seat cushion bottom shell 21: Top surface 3: Shock absorber unit 31: shock absorber 311: Shock Group 312: first gel layer 313: Foam layer 32: Cover 321: second gel layer 4: coating unit 51~53: Steps 6: Shock absorber mold 9: User L: axis L1: first axis L2: second axis

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a three-dimensional exploded view of an existing sports shoe; Figure 2 is a perspective view of an embodiment of a seat cushion with a shock-absorbing body of the present invention; 3 is a schematic cross-sectional view taken along the line III-III of FIG. 2; Figure 4 is a diagram similar to Figure 3, illustrating the situation when the embodiment is stressed; FIG. 5 is a flow block diagram of an embodiment of the method for manufacturing a seat cushion with a shock absorber according to the present invention; and Fig. 6 is a schematic flow chart of this embodiment.

2: seat cushion bottom shell

21: Top surface

3: Shock absorber unit

31: shock absorber

311: Shock Group

312: first gel layer

313: Foam layer

32: Cover

321: second gel layer

4: coating unit

L1: first axis

L2: second axis

Claims (10)

A method for manufacturing a seat cushion with a shock absorber includes the following steps: (A) Prepare a shock-absorbing body mold, a gel material, several foamed thermoplastic polyurethane particles, a cushion bottom shell, and a foamed plastic. The shock-absorbing body mold includes a one-way opening and an upward opening ’S accommodation space; (B) Make a shock absorber unit, including (B1) Carry out at least one filling operation, each filling operation has (B1-1) Inject part of the gel material into the containing space to form a first gel layer, (B1-2) Distributing part of the foamed thermoplastic polyurethane particles uniformly on the surface of the first gel layer to form a foamed layer connected to the first gel layer along the axis, (B2) Inject part of the gel material into the accommodating space and wrap the foam layer to form a second gel layer connected to the foam layer along the axis, and (B3) After the first gel layer and the second gel layer of at least one filling operation are solidified, the first gel layer, the foam layer and the second gel layer of the at least one filling operation are Forming the shock-absorbing body unit, and taking out the shock-absorbing body unit from the shock-absorbing body mold; and (C) Place the shock absorber unit on the seat cushion bottom shell, and inject the foamed plastic to cover the top surface of the seat cushion bottom shell and wrap the shock absorber unit. The method for manufacturing a seat cushion with a shock absorber according to claim 1, wherein the step (B1) is to perform two or more filling operations, and the first gels formed by two adjacent filling operations The layer and the second gel layer of step (B2) are condensed into one body. The method for manufacturing a seat cushion with a shock absorber according to claim 2, wherein, when the second or more filling operations are performed in step (B1), the first gel layer of (B1-1) is along the axis Incompletely cover the foamed layer formed by the previous filling operation. The method for manufacturing a seat cushion with a shock absorber according to any one of claim 1 to claim 3, wherein the gel material prepared in this step (A) is made of silicone. The method for manufacturing a seat cushion with a shock absorber according to claim 4, wherein each of the foamed thermoplastic polyurethane particles prepared in the step (A) is an ellipsoid. A seat cushion with a shock absorber, including: A cushion bottom shell, including a top surface; A shock-absorbing body unit connected to the top surface of the seat cushion bottom shell and includes A shock-absorbing body connected to the bottom shell of the seat cushion, the shock-absorbing body having at least one shock-absorbing group arranged along an axis, and the at least one shock-absorbing group having a first gel layer made of gel material , And a foaming layer connected to the first gel layer along the axis, the foaming layer being formed by several evenly distributed foamed thermoplastic polyurethane particles, and A covering body having a second gel layer made of gel material and connected to the shock-absorbing body along the axis, the second gel layer being condensed with the first gel layer of the at least one shock-absorbing group Become one; and A covering unit is made of foamed plastic material. The covering unit is connected to the seat cushion bottom shell and covers the top surface of the seat cushion bottom shell and covers the shock-absorbing body unit. The seat cushion with a shock-absorbing body according to claim 6, wherein the shock-absorbing body of the shock-absorbing body unit has more than two shock-absorbing groups connected to each other along the axis, and each two adjacent first The gel layers are condensed into one body. The seat cushion with a shock-absorbing body according to claim 7, wherein, among two adjacent shock-absorbing groups of the shock-absorbing body unit, the first gel layer of the upper shock-absorbing group is along the The axis covers the foamed layer of the part of the shock-absorbing group located below. The seat cushion with a shock absorber according to any one of claim 6 to claim 8, wherein the shock absorber unit and the gel material in the covering body are made of silicone. The seat cushion with a shock absorber according to claim 9, wherein each foamed thermoplastic polyurethane particle of the shock absorber unit is an ellipsoid.

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