JP2013102859A - Foamed molded product and locking member for skin material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foamed molded product to which an easily bending part is arranged in a middle part in an extending direction of a linear locking member for a skin material, embedded in a molding body with a relatively simple structure; and to provide a locking member for a skin material used for the foamed molded product.SOLUTION: The foamed molded product 1 includes: the molding body 2 composed of a synthetic resin foam; and the linear locking member 10 for a skin material embedded in the molding body 2. The easily bending part composed of a resin is arranged in the middle part of the extending direction of the locking member 10. The locking member 10 includes: a plurality of linear bodies 11; and connection bodies 12 for connecting the linear bodies 11. The connection bodies 12 are composed of an elastic resin by which the easily bending part is formed. The connection bodies 12 have a plurality of connection body insertion holes 12a, 12b and ends of the linear bodies 11 are inserted into the connection body insertion holes 12a, 12b so that the linear bodies 11, 11 are connected to each other.

Description

  The present invention comprises a molded body body made of a synthetic foam resin and having a skin material disposed on the outer surface, and a linear skin material locking member embedded in the molded body body for locking the skin material. In particular, the present invention relates to a foamed molded article in which an easily bent portion made of a resin is provided in the middle of the extending direction of the skin material locking member. Moreover, this invention relates to the skin material latching member used for this foaming molding.

  A seat pad used for a vehicle seat or a sofa installed in a house includes a seat pad main body made of polyurethane foam or the like and a skin material attached to the outer surface of the seat pad main body. A decoration effect is enhanced by forming a hanging groove on the front surface of the seat pad main body and housing (suspending) a part of the skin material in the hanging groove. In this case, a linear skin material locking member such as a wire is embedded in the seat pad body along the bottom surface of the hanging groove, and the skin material locking member is interposed with a locking tool such as a hook or a hog ring. The skin material is locked.

  When a linear skin material locking member is embedded in the seat pad body, the rigidity of the seat pad body becomes high, for example, when a load is applied from the seated person to the seat pad body in the case of a rear collision of the vehicle. In addition, the seat pad body may not be sufficiently bent.

  Patent Document 1 describes that an easy-bending portion having relatively low rigidity is provided in the middle of the extending direction of the linear skin material locking member. With this configuration, the linear skin material locking member can be bent relatively easily in the easily bent portion, and therefore, the skin pad locking member is embedded in the seat pad main body, thereby the seat pad. It can prevent or relieve the main body from becoming difficult to bend.

  In paragraph 0054 of Patent Document 1, it is described that a part of the skin material locking member is formed of a resin having lower rigidity than the other parts, and this resin part is an easily bent part.

JP 2010-214973 A

  Patent Document 1 does not describe a specific configuration when a part of the linear skin material locking member is formed of resin.

  The present invention relates to a foam molded body in which an easily bent portion is provided with a relatively simple configuration in the middle of the extending direction of a linear skin material locking member embedded in a molded body, and the foam molded body. An object of the present invention is to provide a skin material locking member used in the above.

  The foamed molded product of the present invention (Claim 1) includes a molded product main body made of a foamed synthetic resin and a linear skin material locking member embedded in the molded product main body. A foam molded article in which a skin material is arranged on the outer surface and the skin material is locked to the skin material locking member, and is easily bent made of a resin in the middle of the extending direction of the skin material locking member In the foamed molded body provided with a portion, the skin material locking member includes a plurality of linear bodies and a coupling body in which the linear bodies are coupled to each other, and the coupling body is an elastic resin. The connecting body has a plurality of linear body insertion holes, and the end of the linear body is inserted into each linear body insertion hole, whereby the wire is inserted through the connecting body. The flexible bodies are connected to each other, and the flexible body is formed between the linear bodies by the connected body. .

  According to a second aspect of the present invention, there is provided the foam molded article according to the first aspect, wherein the elastic resin constituting the coupling body is a thermoplastic elastomer.

  The foamed molded body according to claim 3 is the foamed molded body according to claim 1 or 2, wherein the connecting body is cylindrical, and the openings on both ends in the cylindrical axis direction are the linear body insertion holes. It is characterized by being.

  The foamed molded article according to claim 4 is the foam molded article according to any one of claims 1 to 3, wherein the linear bodies are connected to each other in a rectangular ring shape as a whole, and a middle portion in the extending direction of each side of the square. Each of the above-mentioned connecting bodies is arranged in each.

  According to a fifth aspect of the present invention, in the foam molded body according to any one of the first to fourth aspects, the foam molded body is a seat pad.

  The skin material locking member of the present invention (Claim 6) is a linear skin material locking member that is embedded in a foam molded body and that is locked with a skin material disposed on the outer surface of the foam molded body. In the skin material locking member in which an easily bent portion made of resin is provided in the middle in the extending direction, the skin material locking member includes a plurality of linear bodies and the linear bodies. The connected body is made of elastic resin, the connected body has a plurality of linear body insertion holes, and each linear body insertion hole has a linear body. By inserting the end portion, the linear bodies are connected to each other through the connecting body, and the easily bent portion is formed between the linear bodies by the connecting body. It is what.

  In the foamed molded article of the present invention (invention 1), the skin material locking member is formed by connecting a plurality of linear bodies with a connecting body made of an elastic resin. The connecting body has a plurality of linear body insertion holes, and the ends of the linear bodies are inserted into the respective linear body insertion holes, whereby the linear bodies are connected to each other through the connecting body. Are connected to each other, and the connecting body forms an easily bent portion between the linear bodies. Thereby, an easily bent part can be provided with a comparatively simple structure in the middle part of the extending direction of a linear skin material locking member.

  As the second aspect, a thermoplastic elastomer that is lightweight and can be easily molded is suitable as the elastic resin constituting the coupling body. With such an elastic resin, it is possible to configure a connected body having excellent bending characteristics.

  In the aspect of Claim 3, while the structure of a connection body is simple, linear bodies can be easily connected using this connection body.

  As described in claim 4, when connecting the linear bodies as a whole in a rectangular ring shape, it is preferable to dispose the connected bodies in the middle of the extending direction of each side of the square. Thereby, the skin material locking member as a whole, a line connecting the middle parts of the extending direction of each side of this square (line connecting the middle parts of the extending direction of two adjacent sides, and Since it can be bent along both the lines connecting the middle portions in the extending direction of the two opposing sides, the foamed molded article can be sufficiently warped.

  As described in claim 5, the foamed molded article of the present invention is suitable for a seat pad.

  As described above, the skin material locking member of the present invention (Claim 6) used in the foamed molded product of the present invention is obtained by connecting a plurality of linear bodies with a connecting body made of an elastic resin, Since the easily bent portion is formed by this connecting body, the easily bent portion can be provided with a relatively simple configuration in the middle of the extending direction.

It is a front view of the seat pad as a foaming molding which concerns on embodiment. It is a front view of the skin material locking member of the seat pad of FIG. It is a perspective view which shows the bending state of the skin material latching member of FIG. It is a disassembled perspective view which shows the connection structure of the linear body of a skin material latching member of FIG. 2, and a connection body.

  Hereinafter, embodiments will be described with reference to the drawings. In the following embodiments, a vehicle seat pad is exemplified as the foam molded body, but the present invention is a foam molded body constituting a seat pad other than a vehicle, and a foam molded body other than a seat pad. It is also applicable to.

  FIG. 1 is a front view of a seat pad as a foamed molded product according to an embodiment. FIG. 2 is a front view of the skin material locking member of the seat pad. FIG. 3 is a perspective view showing a bent state of the skin material locking member. FIG. 4 is an exploded perspective view showing a connecting structure between the linear body and the connecting body of the skin material locking member. In the following description, the up / down direction, the left / right direction, and the front / rear direction are the same as the up / down direction, the left / right direction, and the front / rear direction for a seated person of a seat configured using the seat pad.

  A seat pad 1 as a foamed molded body in this embodiment is a back pad that constitutes a backrest portion of a vehicle seat. In addition, this invention is applicable also to the cushion pad which comprises the seat part of a vehicle seat. The seat pad 1 may be abbreviated as a seat pad main body 2 made of a foamed synthetic resin such as polyurethane foam, and a linear skin material locking member (hereinafter referred to as a locking member) embedded in the seat pad main body 2. ) 10 etc. The locking member 10 is integrated with the seat pad body 2 by insert molding. The seat pad 1 is attached to a back frame (not shown) of a seat, and an outer surface is covered with a skin material (not shown). The skin material is locked to the locking member 10 via a locking tool (not shown) such as a hook or a hog ring provided on the back surface.

  As shown in FIG. 1, a hanging groove 3 in which a part of the skin material is suspended is formed on the front surface of the seat pad body 2. In this embodiment, as the hanging groove 3, the left vertical hanging groove 3 a extending in the vertical direction along the left side of the front surface of the seat pad body 2 and the vertical side along the right side of the front surface of the seat pad body 2. Right vertical suspension groove 3b extending in the direction, upper lateral suspension groove 3c extending in the left-right direction along the upper side of the front surface of the seat pad body 2, and left and right along the lower side of the front surface of the seat pad body 2. A lower lateral suspension groove 3d extending in the direction is formed. The upper end side and the lower end side of each vertical suspension groove 3a, 3b extend to the upper end and the lower end of the seat pad main body 2, respectively. The left end side and the right end side of each horizontal hanging groove 3c, 3d communicate with the middle part in the vertical direction of the left vertical hanging groove 3a and the right vertical hanging groove 3b, respectively. In addition, arrangement | positioning of the hanging groove 3 is not limited to this.

  A locking member 10 is embedded in the seat pad main body 2 along the bottom surface of the hanging groove 3. In this embodiment, the entire locking member 10 is embedded in the seat pad body 2, but a part thereof is embedded in the seat pad body 2 and the other part is exposed in the hanging groove 3. May be. As shown in FIG. 1, in this embodiment, the locking member 10 includes the upper side horizontal hanging groove 3c and the lower side horizontal hanging groove 3d among the bottom surface of the upper side horizontal hanging groove 3c and the left side vertical hanging groove 3a. (Hereinafter simply referred to as the left vertical suspension groove 3a), the bottom surface of the lower lateral suspension groove 3d, and the lower side of the right vertical suspension groove 3b. It is disposed along the bottom surface of a portion between the side lateral hanging groove 3d and the upper lateral hanging groove 3c (hereinafter simply referred to as the right vertical hanging groove 3b).

  The locking member 10 includes a plurality of linear bodies 11 and a connecting body 12 in which ends of the linear bodies 11 are connected to each other. In this embodiment, the linear body 11 is made of a metal wire. The material of the metal wire is preferably a hard steel wire such as SWA / SWB / SWC, but is not limited thereto. In addition to the metal wire, various wires such as a synthetic resin wire can be used as the linear body 11. In this embodiment, as shown in FIG. 4, the cross-sectional shape in the direction orthogonal to the extending direction of the linear body 11 is circular, but the cross-sectional shape of the linear body 11 is not limited to this. The thickness (outer diameter) of the linear body 11 is preferably 1 to 10 mm, particularly preferably 2 to 3 mm.

  The connecting body 12 is made of an elastic resin. As shown in FIG. 3, the connecting body 12 can be elastically bent and deformed relatively easily between the linear bodies 11, 11 connected by the connecting body 12. As the elastic resin constituting the coupling body 12, a thermoplastic elastomer that is lightweight and can be easily molded is suitable, but is not limited thereto. The connecting body 12 is lower in rigidity than the linear body 11, and the flexural modulus defined by JIS K7203-1982 is preferably 10 to 500 MPa, particularly 40 to 50 MPa.

  As shown in FIG. 4, the connecting body 12 has a plurality (two in this embodiment) of linear body insertion holes 12a and 12b. By inserting the end portions of the linear body 11 into the linear body insertion holes 12a and 12b, the linear bodies 11 and 11 are connected to each other through the connection body 12. Further, by this connecting body 12, an easily bent portion that can be bent relatively easily between the linear bodies 11, 11 (that is, in the middle of the extending direction of the linear skin material locking member 10). Is formed.

  In this embodiment, as shown in FIG. 4, the connecting body 12 has a substantially cylindrical shape with both ends in the cylindrical axis direction open. Openings on both ends of the connecting body 12 in the cylinder axis direction are linear body insertion holes 12a and 12b, respectively. That is, in this embodiment, the linear body insertion holes 12a and 12b penetrate the connecting body 12 and communicate with each other. In this embodiment, the entire connecting body 12 is formed of an elastic resin, and its inner diameter is slightly (preferably 1 to 10 mm, particularly preferably 1.8 to 2) than the outer diameter of the linear body 11. .8mm) is small.

  When connecting the linear bodies 11 and 11 by the connection body 12, the edge part of each linear body 11 is inserted in the connection body 12 from each linear body insertion hole 12a, 12b. At this time, the end of each linear body 11 enters the connecting body 12 while expanding the diameter of the connecting body 12. After the insertion of each linear body 11 into the coupling body 12 is completed, the coupling body 12 elastically adheres to the outer surface of the end of each linear body 11 and grips each linear body 11. Thereby, the linear bodies 11 and 11 can be easily and firmly connected to each other by the connecting body 12. Note that an adhesive may be applied to the outer surface of the end portion of each linear body 11 and the inner surfaces of the linear body insertion holes 12a and 12b, and these may be bonded.

  In the connecting body 12, the ends of both linear bodies 11, 11 may be in contact with each other, and a gap may be provided between the ends.

  In addition, the structure of the connection body 12 is not limited to this. For example, the linear body insertion holes 12a and 12b may not communicate with each other. While forming a female screw in the inner surface of each linear body insertion hole 12a, 12b, a male screw is formed in the outer surface of the edge part of each linear body 11, and the edge part of each linear body 11 is made into each linear body insertion hole 12a, 12b. You may make it screw in. The coupling body 12 may be branched into three or more branches and may have three or more linear body insertion holes.

  In this embodiment, as shown in FIGS. 1 and 2, the locking member 10 includes four linear bodies (hereinafter also referred to as L-shaped linear bodies) 11 bent in an L shape. As a whole, they are connected in an endless rectangular ring. The first L-shaped linear body 11 is disposed across the left half side of the upper lateral hanging groove 3c and the upper half side of the left vertical hanging groove 3a, and the second L-shaped linear body 11 is The third L-shaped linear body 11 is disposed across the lower half side of the left vertical hanging groove 3a and the left half side of the lower horizontal hanging groove 3d. The fourth L-shaped linear body 11 is disposed across the right half side and the lower half side of the right vertical hanging groove 3b, and the fourth L-shaped linear body 11 includes the upper half side of the right vertical hanging groove 3b and the upper side horizontal hanging groove 3c. It is arrange | positioned ranging over the right half side.

  One end sides of the first L-shaped linear body 11 and the second L-shaped linear body 11 are coupled by the first coupling body 12 in the middle in the vertical direction of the left vertical hanging groove 3a. The other end side of the second L-shaped linear body 11 and the one end side of the third L-shaped linear body 11 are the second connecting body 12 in the middle in the left-right direction of the lower lateral suspension groove 3d. The other end side of the third L-shaped linear body 11 and the one end side of the fourth L-shaped linear body 11 are third connected in the middle in the vertical direction of the right vertical hanging groove 3b. The other end sides of the fourth L-shaped linear body 11 and the first L-shaped linear body 11 are connected by the body 12, and the fourth L-shaped linear body 11 is in the middle in the left-right direction of the upper lateral hanging groove 3c. They are connected by a connecting body 12.

  As described above, when the linear bodies 11 are connected to each other in a rectangular ring shape as a whole, the linear bodies 11 are arranged so that the connecting bodies 12 are positioned in the middle of the extending direction of each side of the square. It is preferable. As a result, as shown in FIG. 3, the locking member 10 as a whole connects the middle portions in the extending direction of each side of this square (connecting the middle portions in the extending direction of two adjacent sides). It is possible to bend the sheet pad body 2 along both the straight line and the line connecting the middle portions in the extending direction of the two opposing sides, so that the bending of the seat pad body 2 can be sufficiently secured.

  In addition, the number of the linear bodies 11 which comprise the latching member 10, and the connection position (arrangement | positioning of the coupling body 12) of the linear bodies 11 and 11 are not limited to this.

  When manufacturing the seat pad 1 provided with the locking member 10, the locking member 10 is placed in advance in a foam molding die (not shown) of the seat pad body 2 and foamed in the mold. The seat pad body 2 is formed by foaming the synthetic resin raw material. Thereby, the seat pad 1 in which the locking member 10 is embedded and integrated in the seat pad main body 2 is manufactured.

  In the seat pad 1, the locking member 10 is formed by connecting a plurality of linear bodies 11 with a connecting body 12 made of an elastic resin. The connecting body 12 has a plurality of linear body insertion holes 12a and 12b, and the end of the linear body 11 is inserted into each of the linear body insertion holes 12a and 12b. The linear bodies 11, 11 are connected to each other via 12, and the connecting body 12 forms an easily bent portion between the linear bodies 11, 11. Thereby, an easily bending part can be provided in the middle part of the extending direction of the linear locking member 10 by a comparatively simple structure.

  Each of the above configurations is an example of the present invention, and the present invention may have configurations other than those described above.

  For example, in the above-described embodiment, the locking member 10 is formed by connecting a plurality of linear bodies 11 in a square ring shape as a whole, but the shape of the locking member is not limited to this. For example, the locking member may be formed by connecting a plurality of linear bodies 11 in a ring shape other than a square as a whole, and connecting a plurality of linear bodies 11 in a linear shape as a whole. Also good.

  Although the above embodiment shows an application example of the present invention to a seat pad, the present invention can also be applied to a foam molded body other than the seat pad.

DESCRIPTION OF SYMBOLS 1 Seat pad 2 Seat pad main body 3, 3a-3d Suspension groove 10 Locking member 11 Linear body 12 Connection body 12a, 12b Linear body insertion hole

Claims (6)

A molded body made of foamed synthetic resin;
A linear skin material locking member embedded in the molded body,
A foam material in which a skin material is disposed on the outer surface of the molded body, and the skin material is locked to the skin material locking member,
In the foamed molded article in which an easily bent portion made of resin is provided in the middle of the extending direction of the skin material locking member,
The skin material locking member is:
A plurality of linear bodies;
A connected body connecting the linear bodies,
The connector is made of an elastic resin,
The coupling body has a plurality of linear body insertion holes,
By inserting the end portions of the linear bodies into the respective linear body insertion holes, the linear bodies are connected to each other via the connection bodies, and the linear bodies are connected between the linear bodies by the connection bodies. An easy-to-bend portion is formed.   2. The foamed molded article according to claim 1, wherein the elastic resin constituting the coupling body is a thermoplastic elastomer.   The foamed molded product according to claim 1 or 2, wherein the connecting body is cylindrical, and the openings on both ends in the cylindrical axis direction are respectively the linear body insertion holes. .   In any 1 item | term of the Claims 1 thru | or 3, the said linear bodies are connected by the square cyclic | annular form as a whole, and the said connection body is each arrange | positioned in the middle part of the extension direction of each edge | side of this square. A foamed molded product characterized by comprising:   The foamed molded product according to any one of claims 1 to 4, wherein the foamed molded product is a seat pad. A linear skin material locking member that is embedded in a foam molded body, and a skin material disposed on the outer surface of the foam molded body is locked,
In the middle of the extending direction, in the skin material locking member provided with an easily bent portion made of resin,
The skin material locking member is:
A plurality of linear bodies;
A connected body connecting the linear bodies,
The connector is made of an elastic resin,
The coupling body has a plurality of linear body insertion holes,
By inserting the end portions of the linear bodies into the respective linear body insertion holes, the linear bodies are connected to each other via the connection bodies, and the linear bodies are connected between the linear bodies by the connection bodies. A skin material locking member, wherein an easily bent portion is formed.

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