KR101549826B1 - Cushion pad having ventilation mat - Google Patents

Abstract

The present invention relates to a cushion pad having an integrated ventilation mat. More specifically, the cushion pad having an integrated ventilation met comprises: a main pad (110) which is formed as a foamed resin material injected into a mold is foamed, and in which a plurality of ventilation holes (110a) are integrally formed by a plurality of core pins (51) installed inside the mold; and a ventilation mat (120) which includes an inlet (123a), arranged on one surface thereof and connected to a duct, a plurality of outlets (121a), arranged on the other surface thereof and corresponding to the ventilation holes (110a), a space (127) formed inside for connecting the inlet (123a) and the outlets (121a), and is inserted into an upper end of the core pins (51) while having the outlets (121a) fitted in the same and integrally coupled to one surface of the main pad (110) when the main pad (110) is foam-molded. Therefore, the present invention can: shorten the assembly operation period; and increase the production efficiency by eliminating an assembly process of the cushion pad and the ventilation mat.

Description

Cushion pad having ventilation mat}

The present invention relates to a ventilating sheet for a vehicle, and more particularly, to a ventilating mat integral cushion pad that inserts a ventilating mat to form an integral body during foam molding.

Generally, a vehicle is equipped with an air conditioner and a heater, but even in the case of a summer or a winter season, even if the air conditioner is operated, the vehicle occupant can receive the warmth or cool air transmitted from the seat of the vehicle, To solve this problem, a ventilation sheet having a separate ventilation device is widely applied to the seat.

1 is a view conceptually showing a ventilation sheet for showing a configuration.

The conventional ventilation sheet is provided with a minute ventilation hole (not shown) in a seat finishing member (not shown) that is in contact with the body, and a plurality of ventilation holes 1a as a whole are also provided on the cushion pad 1 for supporting the same body. . The air blowing unit 3 is provided so as to supply conditioned air toward the ventilation holes 1a of the cushion pad 1 so that the air from the air blowing unit 3 is supplied to the cushion pad 1, In order to uniformly and effectively supply the air to the plurality of ventilation holes 1a, the ventilation flow path 2 of the branching structure should be designed.

However, due to the characteristics of the vehicle seat, the complicated mechanism units and the support frame are provided in consideration of the safety strength and the functional side in the narrow rear space of the cushion pad, so that the optimum design satisfying the air- There are restrictions.

FIG. 2 is a view showing an example of a conventional ventilation sheet, which is a view partially shown in Korean Patent Laid-Open Publication No. 2013-0056098.

The illustrated ventilation sheet includes a cushion pad 1 to which a cushion function is given and is provided with a plurality of ventilation holes 1a and a ventilation hole 1 which is connected to the bottom surface of the cushion pad 1 and communicates with the ventilation hole 1a. And a ventilation panel 2 'provided with a channel 2a' to secure the air to the inside of the ventilation unit 3 and to introduce the air conveyed from the ventilation unit 3 into the ventilation panel 2 '.

The ventilation sheet having such a configuration is configured such that the air supplied from the air blowing unit 3 is branched upward through the ventilation holes 1a of the cushion pad 1 while branching through the channels 2a ' .

The ventilation sheet to which the ventilation apparatus is applied is generally expensive and selectively used only for expensive luxury vehicles. The ventilation sheet is a complicated structure in terms of design for application in a narrow vehicle seat and a mounting structure with a vehicle seat (cushion pad) Expensive manufacturing costs are incurred.

For example, the cushion pad 1 for a vehicle seat is manufactured by a foam molding method, and the cushion pad 1 is provided with a geometric shape for effective contact with the user's body. The ventilating panel 2 ' There is a difficulty in fabrication that a complex geometric structure should be manufactured for the connection with the pad 1.

In addition, the manufacturing cost of the cushion pad 1 is increased due to the assembly process with the channel type ventilation panel 2 'and the air blowing unit 3 which are combined with the cushion pad 1 for a vehicle seat to form the ventilation path, There is a problem that manufacturability of manufacturing the existing sheet and the ventilation panel 2 'and the ventilation unit 3 is not compatible with each other.

In addition, the ventilation device applied to the ventilation sheet has a problem that the manufacturing cost is increased due to the assembling process with the vehicle seat (cushion pad) and compatibility with the sheet manufacturing company is poor.

3 is a cross-sectional view showing another example of a conventional ventilation sheet.

The illustrated ventilation sheet comprises a cushion pad 1 to which a cushioning function is imparted and is provided with a plurality of ventilation holes 1a and a ventilation hole 2 which is connected to the bottom surface of the cushion pad 1 and communicates with a plurality of ventilation holes 1a And a ventilation mat (2 ") provided with a plurality of outflow ports and an inlet port provided on the other side and a ventilation passage (2a") branched to connect the outlet port.

As a result, unlike the ventilation panel of the ventilation sheet shown in Fig. 2, the ventilation mat 2 "of the ventilation sheet shown in Fig. 3 is made of a flexible material so as to form a tube structure having a ventilation passage 2a" There is a difference.

Such a ventilating mat 2 "is advantageous in that it can be manufactured at a relatively low cost by extrusion molding rubber, resin or the like, and has a small space limitation. However, like the ventilating panel 2 ' A separate process for assembling the cushion pad 1 with the manufactured cushion pad 1 is required. In particular, due to the structural characteristics of the ventilating mat 2 "as a flexible material, There is a problem that the ventilation holes 1a of the cushion pad 1 and the ventilation paths 2a "of the ventilation mat 2" There is a problem that the ventilation mat 2a "is clogged or durability is deteriorated due to deformation (shrinkage) of the ventilation mat 2" due to the weight of the seated user during use.

Document 1) Korean Laid-Open Patent Publication No. 2013-0056098 (Feb. Document 2) Japanese Patent Application Laid-Open No. 2007-054385 (2007.08.08)

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a cushion pad which is manufactured by integrally manufacturing a cushion pad having a ventilation path by inserting a ventilation mat in a foam molding process of the cushion pad, And to provide a ventilating mat integral cushion pad capable of shortening production and increasing production efficiency.

Another object of the present invention is to provide a ventilating mat integral cushion pad which can prevent a decrease in durability due to deformation of a ventilating mat by satisfying the deformation preventing structure of the ventilating mat integral with the cushion pad.

According to an aspect of the present invention, there is provided a cushion pad for a vehicle seat,

A main pad 110 formed by foaming a foamed resin material injected into a mold and having a plurality of vent holes 110a integrally molded by a plurality of core pins 51 installed in the mold; And

And a plurality of outflow ports 121a corresponding to the vent holes 110a are provided on the other surface of the housing 120. A plurality of outflow ports 121a corresponding to the vent holes 110a are provided on the other surface, A space 128 is formed in the upper surface of the main pad 110 and an outlet 121a is inserted into the upper end of the core pin 51 to form a ventilation hole integrally joined to one surface of the main pad 110, And a mat (120).

Here, the ventilation mat (120) includes an upper cover (121) through which a plurality of outflow ports (121a) are formed; A lower cover 123 through which an inlet 123a is formed and which is coupled with the upper cover to form a space 128 therein; And a lower cover 123 or an upper cover 121 which faces the inner surface of the upper cover 121 or the lower cover 123 to prevent deformation of the space 128, And a plurality of spacing grooves 123b for smoothly flowing the air toward the plurality of outlets 121a.

The upper cover 121 is coupled to the main pad 110 to protect the upper cover 121 from the foaming temperature during foaming and to induce a uniform flow of the foaming resin solution to strengthen the binding force. A resin coating layer 122 may be provided.

The inlet 123a formed in the lower cover 123 may be provided with a duct bracket 125 for assembling the duct.

The present invention minimizes the assembling process of the cushion pad for application of the ventilation sheet, thereby shortening the manufacturing process of the ventilation sheet, thereby reducing manufacturing cost and productivity.

Further, the present invention is advantageous in providing a cushion pad for a ventilating seat having excellent cushioning and durability by minimizing deformation due to a load transmitted from a user even though it is installed in a minimum range that does not hinder cushioning of the cushion pad .

Further, since the present invention can constitute a cushion pad integrally formed with a ventilation mat in a minimum range that does not hinder the cushioning function of the cushion pad, it is possible to provide a cushion pad It is possible to easily design the ventilation function option at low cost without replacing the seat of the vehicle according to the user's need.

1 is a conceptual view showing a configuration of a ventilation sheet;
2 is an example of a conventional ventilation sheet.
3 is another example of a conventional ventilation sheet.
4 is a perspective view showing a configuration of a cushion pad for a ventilation sheet according to the present invention.
5 is a sectional view showing the configuration of a cushion pad for a ventilation sheet according to the present invention.
6 is a perspective view showing a configuration of a ventilation mat according to the present invention.
7 is an exploded perspective view showing a configuration of a ventilation mat according to the present invention.
8 is a sectional view showing a configuration of a ventilation mat according to the present invention.
9 is a view showing a step-by-step production process of a cushion pad according to the present invention.

The features and advantages of the present invention described above or not described above will be more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings.

4 is a view showing a configuration of a cushion pad for a ventilation sheet according to the present invention.

The cushion pad 10 according to the present invention includes a main pad 110 and a ventilation mat 120.

The main pad 110 provides a cushion function by contacting the user's body. The main pad 110 is integrally provided with a plurality of ventilation holes 110a for supplying the air supplied from the air blowing unit toward the user's body.

9, the main pad 110 is formed by injecting a foamed molding resin material S into a mold 50 (a lower mold) having a plurality of core pins 51 therein and then foaming the resin material Shaped and then subjected to a curing process to produce a known foam molding method.

As the foam-molding resin raw material (S), one of polyurethane, polyethylene, polypropylene or polyvinyl chloride may be used or a combination thereof may be used. For example, the main pad can be formed from a urethane foam. The urethane foam is produced through a polymerization reaction of a hydroxyl compound such as a polyether polyol with an isocyanate, and a polyisocyanate, And an addition reaction of a polyol with a urethane bond. Such a foamed molding resin raw material is not limited to the raw materials described above, and any raw material can be used as long as it can impart cushioning.

The ventilation mat of the present invention will be described in detail with reference to Figs. 5 to 8. Fig.

The ventilation mat 120 provides an air flow path for supplying the air supplied from the air blowing unit 3 (see FIGS. 1 and 2) to the ventilation holes 110a of the main pad 110, And an inlet port 123a connected to the duct 31 on the side of the air blowing unit 3 is formed on one surface (lower surface) of the main pad 110. A number of outlets (corresponding to the vent hole 110a) And a space 128 is formed in the interior of the inlet 123a and the outlet 121a.

The ventilating mat 120 is integrally coupled to one surface (lower surface) of the main pad 110 in a state where the ventilating mat 120 is opposed to the ventilating hole 110a of the main pad 110 and the outlet 121a.

The ventilating mat 120 is integrally joined to one surface (lower surface) of the main pad 110 during the foam molding process of the main pad 110.

9, before ventilating and molding the main pad 110, the ventilating mat 120 previously prepared in the above-described manner is inserted into the molds 50 and 60 for molding the main pad 110, Thereby forming an integral body.

Concretely, the ventilation mat 120, which has been manufactured in advance, is fixed to the upper end of the ventilation hole forming core pin 51 provided in the mold 50 (lower mold) in an inverted state. The upper end of the core pin 51 is inserted into the outlet 121a of the ventilation mat 120 so that the ventilation mat 120 is stably inserted into the upper end of the core fin 51. [ The main pad 110 and the ventilation mat 120 are integrated by performing foaming of the main pad 110 in a state where the ventilation mat 120 is inserted.

In this way, when the ventilation mat 120 is integrally manufactured at the time of foam molding of the main pad 110, an additional step of integrating the ventilation mat into the foamed main pad in advance by using a coupling means such as a conventional adhesive is eliminated It is anticipated that the production air and cost savings will be reduced.

In addition, the present invention overcomes the problem that the air supply path of the ventilating mat is clogged with the weight of the user like the conventional ventilating mat, or the durability of the ventilating mat is deteriorated due to frequent deformation which frequently occurs due to repeated compression and expansion.

That is, the ventilation mat 120 may be formed as an integral structure having a space 128 therein, but it is preferable that the upper cover 121 and the lower cover 123 ) Are manufactured separately and combined with each other.

An upper cover 121 having a plurality of outlets 121a corresponding to the vent holes 110a of the main pad 110 and an inlet 123a connected to the duct 31 of the air blowing unit 3, The upper and lower covers 121 and 123 are coupled to each other to form a space 128 for air supply.

The inner surface of the lower cover 123 is provided with a plurality of spacing holes 123b protruding toward the inner surface of the facing upper cover 121. The gap maintaining aperture 123b may be integrally formed when the lower cover 123 is formed. On the other hand, unlike the illustrated example, the gap maintaining aperture 123b may be formed on the inner surface of the upper cover 121. [

The gap maintaining member 123b prevents the deformation such as clogging of the inner space 128 by compressing the ventilation mat 120 due to the weight of the user delivered to the main pad 110, 121a. ≪ / RTI > In addition, the gap retaining mouth 123b has a supporting structure for preventing frequent compression and expansion of the upper and lower covers 121 and 123, thereby increasing the durability of the ventilation mat 120.

On the other hand, the upper and lower covers 121 and 123 may be formed of various types of synthetic resins, but they may be formed of a resin such as a felt or a nonwoven fabric to reduce the weight and manufacturing cost. The upper and lower covers 121 and 123 individually molded and manufactured as described above are integrally combined through an adhesive method such as ultrasonic welding, hot melt or the like.

Referring to FIG. 8, the ventilation mat 120 formed of felt, nonwoven fabric or the like should be free from thermal deformation due to the foaming temperature generated during the foaming molding of the main pad 110, A resin coating layer 122 may be formed on the outer surface of the upper cover 121.

The resin coating layer 122 prevents the top cover 121 from being damaged during the foaming process because the foaming temperature of the main pad 110 is transferred to the top cover 121 and the surface of the resin coating layer 122 The foamed resin solution can be maintained in a firm contact state with the main pad 110 after the final foaming and the foamed resin solution can be maintained in a firm contact state with the main pad 110 and the upper cover 21 The bonding force can be increased.

The resin coating layer 122 may be formed of any resin that is not thermally deformed in the foaming temperature range of the main pad 110.

6 and 7, the inlet 123a of the ventilation mat 120 may include a connection bracket 125 connected to the duct 31 on the side of the air blowing unit 3.

Although not shown in detail, the connecting bracket 125 has a pipe structure corresponding to the inlet port 123a and includes stoppers at both ends thereof, so that one end of the connecting bracket 125 is press-fitted into the inlet port 123a of the ventilating mat 120 .

On the other hand, the connection bracket 125 may be integrally formed in the molding process of the lower cover 123.

As described above, since the inlet 123a of the ventilation mat 120 includes the connection bracket 125, it is not necessary to provide a separate fastening member and the ventilation unit 3 can be easily assembled with the duct 31 .

FIG. 9 is a view showing a process of manufacturing the cushion pad according to the present invention.

The upper cover 121 and the lower cover 123 are separately formed and then the upper cover 121 and the lower cover 123 are coupled to each other so that the ventilation mat 120 having the space 128 therein, . (See Fig. 8)

The outlet 121a of the ventilation mat 120, which has been manufactured in advance, is inserted into the upper portion of the core pin 51 provided in the molding space of the lower mold 50 forming the upper surface of the main pad 110, (see drawing a and b)

A step (not shown) for supporting the outer edge of the outlet 121a may be formed at the upper end of the core pin 51 on which the outlet 121a of the ventilation mat 120 is inserted. Since the outlet 121a of the ventilation mat 120 is supported by the step of the core pin 51, it is possible to more firmly maintain the position of the ventilation mat 120 inserted from the foaming pressure generated in the foaming process, The resin material in the fired state can be prevented from flowing into the space 128 side of the ventilation mat 120 through the gap between the core fin 51 and the outlet 121a.

After the ventilation mat 120 is inserted in this manner, the foamed molding resin material S is injected into the lower mold 51 and the lower mold 50 and the upper mold 60 are coupled and mounted. (see drawings c and d)

After the completion of the mold mounting, the temperature of the mold is raised to foam the foamed molding resin raw material S. (see drawing d)

As described above, the foamed molding resin material S has the shape of the main pad 110 while being subjected to the foaming process, and the cushion pad 10 in which the ventilation mat 120 is integrally coupled to the lower surface .

After a predetermined curing process, the mold is separated and the cushion pad 10 is removed. As a result, the integral cushion pad 10 of the ventilation mat 120 shown in FIG. 4 is completed.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

10: cushion pad 110: main pad
110a: Ventilation hole 120: Ventilation mat
121: upper cover 121a: outlet
122: resin coating layer 123: bottom cover
123a: Inlet port 123b:
125: connection bracket 128: space
3: blowing unit 31: duct

Claims (5)

A cushion pad of a vehicle seat,
A main pad 110 formed by foaming a foamed resin material injected into a mold and having a plurality of vent holes 110a integrally molded by a plurality of core pins 51 installed in the mold; And
And a plurality of outflow ports 121a corresponding to the vent holes 110a are provided on the other surface of the housing 120. A plurality of outflow ports 121a corresponding to the vent holes 110a are provided on the other surface, A space 128 is formed in the upper surface of the main pad 110 and an outlet 121a is inserted into the upper end of the core pin 51 to form a ventilation hole integrally joined to one surface of the main pad 110, And a mat (120)
The ventilation mat (120) includes an upper cover (121) having a plurality of outflow ports (121a) formed therein and made of felt or nonwoven fabric; A lower cover 123 formed of a felt or a nonwoven fabric and having an inlet 123a formed therethrough and coupled with the upper cover to form a space 128 therein; And a lower cover 123 or an upper cover 121 which faces the inner surface of the upper cover 121 or the lower cover 123 so as to prevent deformation of the space 128, And a plurality of spacing holders 123b for keeping constant the flow of air toward the plurality of outlets 121a,
A resin coating layer (not shown) for protecting the upper cover 121 from the foaming temperature at the time of foaming and inducing a uniform flow of the foaming resin solution to strengthen the binding force is formed on the outer surface of the upper cover 121, (122) is provided on the side surface of the ventilation mat-equipped cushion pad.
delete delete The method according to claim 1,
Wherein the ventilation mat integral cushion pad is provided with a duct connection assembly bracket (125) at an inlet (123a) formed in the lower cover (123).
delete

Images