JP2002283461A - Method for bonding skin material of seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply correct wrinkles generated in a skin material when the skin material is pressed by the surface press member of a bonding fixture and to enhance the durability and attaching properties of the surface press member to enhance work efficiency. SOLUTION: The reticulated body 15b of the surface press member 15 formed by attaching the reticulated body 15b to a frame body 15a is formed from a shaping reticulated structure 16a and the reticulated structure 16b, which prevents the falling of the raising of the skin material 5, laminated to the shaping reticulated structure 16a. The surface press member 15 is formed from the central surface press member 15A corresponding to a seat main part as a first surface press member and a front surface press member 15B corresponding to a seat front part as a second surface press member. After the skin material 5a corresponding to the seat main part is pressed by the central surface press member 15A, the wrinkles of the skin material 5 are corrected and the skin material 5b corresponding to the seat front part is pressed by the front surface press member 15B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of bonding a skin material of a vehicle seat. More specifically, the present invention relates to a method of applying a reactive adhesive to a pad material or a skin material and positioning the skin material on the pad material. The present invention relates to a method for bonding a skin material of a vehicle seat, wherein the skin material is bonded to a surface of a pad material by heating and reacting the reactive adhesive by a heating means.

[0002]

2. Description of the Related Art Conventionally, a seat such as a vehicle seat has a pad material and a skin material covering the pad material, and a reactive adhesive is applied to an outer peripheral surface of the pad material or a back surface of the skin material. The pad material is set in a set jig, the pad material is covered with a skin material, steam or the like is sprayed in a heating tank, the reactive adhesive is heated and reacted, and then the skin material is crimped to the pad material by a crimping jig. Then, the pad material and the skin material are bonded to each other, and after cooling, the product is taken out from the set jig.

As shown in FIG. 7, conventionally, a pad material 3 is attached to a pad receiving stand 8b provided on a lower die 8a of a set jig 8, and a reactive adhesive 7 is applied to the pad material 3 to form a pad material 3.
Is covered with a skin material 5, and then the skin material 5 is pressed by a holding blade 8d provided on an upper mold 8c formed in a frame shape, thereby forming the upper mold 8c.
Is set to the lower die 8a, and as shown in FIG. 8, the set jig 8 is slid and inserted into the heating tank 21, and the holding blade 8d of the upper die 8c formed in the frame shape is released. The general surface of the skin material 5 was pressed by the pressure bonding jig 9 as a surface pressing member for pressing the surface shape of the general surface formed by the above.

Further, since a sheet such as a vehicle seat is large in the heating tank 21, the set jig 8 is slid and inserted, or at most two set jigs 8 are attached to the base member 21 a of the heating tank 21. An air outlet 9a for connecting steam or hot air to the crimping jig 9, a steam outlet 9b
The heating is performed by spraying from a large number of blowing holes 9c of the pressing jig 9. As a method of bonding the pad material 3 and the skin material 5 with the reactive hot melt adhesive 7, Japanese Patent No. 2960583 and Japanese Patent No. 296058
No. 5, JP-A-10-71283, and the like.

[0005]

However, the conventional method of bonding the skin material has a drawback that the set jig 8 and the crimp jig 9 are required and the manufacturing cost of the jig is increased.
When the surface of the curved sheet is pressed at once by the surface pressing member, wrinkles are generated on the skin material 5, and when the wrinkles are generated, the wrinkles are found after the product is taken out. There was a drawback that rework was required and the work was complicated. Further, in order to prevent wrinkles of the skin material 5, operations such as changing the shape of the pad material 3 and correcting the pattern of the skin material 5 are required, which requires a great deal of man-hours. Further, there is a problem in durability and mounting properties of the surface pressing member. In addition, there is a possibility that the skin material may be raised and fall, or the skin material may be damaged by high temperature.

An object of the present invention is to provide a bonding jig by integrating a set jig and a pressure bonding jig, and to easily reduce wrinkles generated when a skin material is pressed by a surface pressing member of the bonding jig. It can improve the durability and attachment of the surface pressing member, can improve the work efficiency, and can prevent the skin material from brushing down and damage due to the high temperature of the skin material. An object of the present invention is to provide a method for bonding a skin material of a vehicle seat which is excellent in economical efficiency.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a method of bonding a skin material for a vehicle seat according to the first aspect of the present invention is a method for bonding a pad material or a skin material to a reactive material. An adhesive is applied, a skin material is positioned and arranged on the pad material, and the reactive adhesive is heated and reacted by a heating means to bond the skin material to the surface of the pad material. In the method, the pad material is set on a lower die of an adhesive jig having a pad receiving stand, the skin material is aligned with the pad material, and a breathable and mesh-like surface pressing member is formed for shaping. The upper mold of the bonding jig formed of the mesh structure and the mesh structure for preventing hair fall of the skin material is matched with the lower mold, and the surface pressing member is a first surface pressing member and a second surface. A pressing member, and the reactive adhesive is heated in a heating tank. More heating, and wherein the adhering the skin material to the surface of the pad material by reactive adhesive.

According to a second aspect of the present invention, the first surface pressing member is formed as a central surface pressing member corresponding to a seat main portion, and the second surface pressing member is provided. Is formed on the front surface pressing member corresponding to the front portion of the seat, the skin material corresponding to the seat main portion is pressed by the central surface pressing member, and the front surface pressing member corresponds to the seat front portion by the front surface pressing member. It is characterized in that the skin material is pressed.

According to a third aspect of the present invention, in the method for bonding a skin material of a vehicle seat, the first surface pressing member presses a skin material corresponding to a seat main portion, and then the second surface pressing member applies the seat. It is characterized in that the skin material corresponding to the front part is pressed.

According to a fourth aspect of the present invention, in the method for bonding a skin material of a vehicle seat, a pressing blade for a pattern is formed on an upper mold of the bonding jig, and the skin material is formed into a net-like surface in accordance with a pattern of a pad material. It is characterized in that pressing is performed by a pressing member and a pressing blade for a pattern.

According to a fifth aspect of the present invention, in the method for bonding a skin material of a vehicle seat, a turning mechanism is provided on an upper mold of the bonding jig.
The second arm is connected to a turning arm of the turning mechanism via a lock mechanism.
After pressing the surface material corresponding to the seat main portion by the first surface pressing member, the wrinkles of the skin material corresponding to the front portion of the seat are extended, and the second surface pressing member is turned. The second surface pressing member is pressed by the lock mechanism in a state in which the rotating arm of the moving mechanism is pressed against the skin material corresponding to the front portion of the seat by rotating, and wrinkles of the skin material corresponding to the front portion of the seat are extended. Characterized by maintaining a pressed state by

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method for bonding a skin material of a vehicle seat according to the present invention will be described in detail with reference to the drawings. Figure 1
(A), (b) to FIG. 5 show an embodiment of a method of bonding a skin material of a vehicle seat according to the present invention, respectively.
FIG. 1A is a cross-sectional view illustrating a state in which a reactive adhesive is applied to a pad material, FIG. 1B is a cross-sectional view illustrating a state in which a skin material is set, and FIG. 2 is a cross-sectional view illustrating a bonding jig. FIG. 3 is an exploded perspective view of the bonding jig, FIG. 4 is a cross-sectional view of the mesh-shaped surface pressing member, and FIG. 5 shows an operation process of the upper die surface pressing member. FIG. 6B is a cross-sectional view illustrating a state in which a skin material corresponding to the seat main portion is pressed by a center surface pressing member, and FIG. 6 illustrates an operation process of the upper die surface pressing member, respectively. FIG. 4 is a cross-sectional view of a state in which a front surface pressing member is rotated, and FIG. 4B is a cross-sectional view of a state in which a pressing state of the front surface pressing member is held by a lock mechanism.
In this embodiment, a case where the present invention is applied to a seat cushion of a vehicle seat will be described. However, the present invention is not limited to a seat cushion of a vehicle seat. In addition, portions corresponding to the above-described conventional technology will be described with the same reference numerals.

As shown in FIGS. 1A and 1B, a vehicle seat 1 such as a seat cushion and a seat back has a pad material 3 and a skin material 5 covering the pad material 3, and the pad material 3 is made of urethane. The skin material 5 is formed of a pad or the like, and has air permeability. First, as shown in FIG.
A reactive adhesive 7 made of a urethane hot melt or the like having a melting point of about 60 ° C. is applied to the surface of the pad, the skin material 5 is positioned and arranged on the pad material 3, and the reactive adhesive 7 is heated by heating means. After the reaction, as shown in FIG.
The surface material 5 is adhered to the surface of. The reactive adhesive 7 may be applied to the back surface of the skin material 5.

As shown in FIG. 2 and FIG.
The pad material 3 and the skin material 5 are set on the lower mold 12 of the bonding jig 11 with the reactive adhesive 7 applied between the and the skin material 5. First, the pad material 3 is mounted on the pad receiving table 12a provided on the lower mold 12. This pad holder 12a is a hinge 1
4 is provided so as to be able to rise, and can be raised to the front side when covering the skin material 5.

The skin material 5 is engaged with a lower gusset tension receiver 12b provided on the lower mold 12 of the bonding jig 11 by a J hook or the like provided at an end of the skin material 5 in a state of covering the pad material 3. You. The pad material 3 and the skin material 5 are positioned by the positioning member 12c of the pad material 3 and the skin material 5 provided on the side of the lower mold 12.
Is positioned.

As shown in FIG. 3, a lower mold 12 of the bonding jig 11 is provided.
The upper die 13 has a plurality of surface pressing members 15 attached to the base frame 13a and a plurality of pattern pressing blades 17 each having a band-shaped tip, and is formed in a frame shape having air permeability. Have been. The surface pressing member 15 is formed by attaching a net 15b such as a wire net to a frame 15a.
a is attached to the base frame 13a of the upper die 13 via the bracket 13b.

The surface pressing member 15 is a central surface pressing member 15 as a first surface pressing member corresponding to the sheet main portion.
A, and a front surface pressing member 15B for pressing the front portion as a second surface pressing member. The surface pressing member 15
The side surface pressing member for pressing the side portion or the like may be further divided and provided.

As shown in FIG. 5, the mesh 15b attached to the frame 15a of the mesh-shaped surface pressing member 15 is composed of a mesh 16a for shaping and a mesh 16b for preventing the skin material 5 from falling down. Is formed. The frame body 15a is formed of a stainless steel frame line having a wire diameter of about 3 mm. The mesh structure 16a for shaping the mesh body 15b is formed of a stainless steel mesh, and has a wire diameter of about 0.5 mm. Is formed to have a size of $ 5 (5 mm).

The mesh structure 16b for preventing hair fall of the mesh body 15b is formed of a synthetic resin mesh such as nylon, and has a wire diameter of about 0.1 mm and a size of 34 × 35. still,
The size of the mesh can be changed as appropriate. The mesh structure 16a for shaping is the mesh structure 1 for preventing hair fall.
6b, the durability can be improved, and the mesh of the mesh structure 16b for preventing hair fall is fine, so that the hair of the skin material 5 can be prevented.

When the upper die 13 of the bonding jig 11 is matched with the lower die 12, a latch lock 18 is used. The latch lock 18 is a first-stage hinge 18a that locks the lower die 12 and the upper die 13 in a matching state, and a second-stage hinge 18 that locks the lower die 12 and the upper die 13 in a matching state.
b.

Next, FIGS. 5A and 5B and FIG.
With reference to (a) and (b), the center surface pressing member 15A as the first surface pressing member of the upper die 13 and the front surface pressing member 15B as the second surface pressing member will be further described. . The base frame 13a of the upper die 13 is provided with a central surface pressing member 15A corresponding to the sheet main portion, a front surface pressing member 15B for pressing the front portion, and a pattern pressing blade 17; The front surface pressing member 15B for pressing the front portion is provided rotatably by a rotating mechanism 51 provided on the base frame 13a.

The turning mechanism 51 has a turning arm 55 pivotally supported by a hinge 53. A front surface pressing member 15B is attached to the turning arm 55 via a lock mechanism 57. The lock mechanism 57 includes a main body 57a,
A shaft member 57 movably provided on the main body 57a.
b, and a front surface pushing member 1 at the lower end of the shaft member 57b.
5B is attached.

An operating portion 58 is formed on the shaft member 57b, and a lock piece is provided between the main body portion 57a and the shaft member 57b. The shaft member 57b is locked with the operating portion 58 pressed downward. It is configured to: Further, a lock release push button 59 for releasing a locked state between the main body 57a and the shaft member 57b is provided. By pressing the lock release push button 59, the shaft member 57b is urged upward by the return spring, and the front surface pressing member 15B moves upward.

As shown in FIG. 5 (a), the pad material 3 and the skin material 5 with the reactive adhesive 7 applied to the lower mold 12 of the bonding jig 11 are positioned, and the front surface pressing member 15B is pressed. The upper mold 13 is arranged in a state where the upper mold 13 is rotated upward by the rotation mechanism 51 provided on the base frame 13a, and as shown in FIG.
The upper die 13 is lowered, and the skin material 5a corresponding to the sheet main portion is pressed by the center surface pressing member 15A and the pressing blade 17 for the pattern. The pad material 3 has a pattern 3a.
Are formed.

After the skin material 5a corresponding to the sheet main portion is pressed by the center surface pressing member 15A and the pattern pressing blade 17, the wrinkles of the skin material 5b corresponding to the front portion of the sheet are extended, and FIG. As shown in a), the front surface pressing member 15B is turned toward the skin material 5b corresponding to the seat front by turning the turning arm 55 of the turning mechanism 51.

Next, as shown in FIG. 6 (b), when the operating portion 58 of the lock mechanism 57 is pressed downward, the lock mechanism 57 causes the wrinkles of the skin material 5b corresponding to the front of the seat to be extended. The pressing state by the front surface pressing member 15B is maintained. By setting the lower mold 12 and the upper mold 13 in a mold-locking state, the mesh material is used to determine the shape of the mesh 15b of the surface pressing member 15 in accordance with the pattern 3a of the pad material 3 and the skin material 5. It is pressed by a pattern pressing blade 17 composed of a body 16a, a mesh structure 16b for preventing hair fall, and a band-shaped member.

The pattern 3 is applied to the pad material 3 and the skin material 5.
When a is not formed, the pressing blade 17 for the pattern is omitted. In a state where the skin material 5 is pressed against the pad material 3 by the center pressing member 15A, the pattern pressing blade 17 and the front pressing member 15B, the reactive adhesive 7 is heated in the same heating tank as shown in FIG. At 21, heating is performed by a heating means in the order of hot air-steam-hot air and the like, and the surface material 5 can be adhered to the surface of the pad material 3 by the reactive adhesive 7.
It is to be noted that a rotary drum is provided in the heating tank 21 and a plurality of bonding jigs 11 are attached to the rotary drum so that heat treatment can be performed sequentially.

After the reactive adhesive 7 has cooled, the main body 57
The shaft member 57b is urged upward by the return spring by pressing the unlocking push button 59 for releasing the locked state between the shaft member 57a and the shaft member 57b, and the front surface pressing member 15B moves upward. Then, if the upper die 13 is opened, the product can be taken out by raising the central surface pressing member 15A and the pattern pressing blade 17.

[0029]

The method for bonding a skin material of a vehicle seat according to the present invention has been described above. According to the method for bonding a skin material of a vehicle seat according to the first aspect of the present invention, a pad material is received by a pad receiving member. The lower surface of the bonding jig having the base is set on the lower mold, the skin material is aligned with the pad material, the mesh structure for shaping the mesh-like surface pressing member having air permeability, and the hair fall of the skin material. The upper mold of the bonding jig formed from the network structure for prevention is matched with the lower mold, and the surface pressing member is formed from a first surface pressing member and a second surface pressing member, and the reaction is performed. The mold adhesive is heated by a heating means in a heating tank, and the skin material is adhered to the surface of the pad material by the reactive adhesive, so that the set jig and the pressure jig can be integrated into an adhesive jig. ,
Wrinkles generated when the skin material is pressed by the first and second surface pressing members of the bonding jig can be easily corrected, and the durability and attachment of the surface pressing member can be improved. Efficiency can be improved, and the raised material of the skin material can be prevented from being damaged and the skin material can be prevented from being damaged by high temperature.

According to the method for bonding a skin material of a vehicle seat according to a second aspect of the present invention, the first surface pressing member is formed on a central surface pressing member corresponding to a seat main portion, and the second surface pressing member is formed on the second surface pressing member. Is formed on the front surface pressing member corresponding to the front part of the seat, the outer surface material corresponding to the seat main part is pressed by the central surface pressing member, and the front surface pressing member is pressed by the front surface pressing member. Since the skin material corresponding to the sheet pressing portion is pressed, the skin material corresponding to the sheet main portion can be pressed by the first surface pressing member of the bonding jig, and the skin corresponding to the sheet front portion by the second surface pressing member. Material can be pressed, wrinkles generated when the skin material is pressed can be easily corrected, the durability and attachment of the surface pressing member can be improved, and work efficiency can be improved. Can be raised, It is possible to prevent the damage caused by the temperature.

According to the method for bonding a skin material of a vehicle seat according to a third aspect of the present invention, after the skin material corresponding to the seat main portion is pressed by the first surface pressing member, the second surface is pressed. Since the skin material corresponding to the front part of the seat is pressed by the pressing member, wrinkles and the like at the front part of the skin material can be checked from the outside while the skin material corresponding to the seat main part is pressed, and the wrinkles can be easily formed. Can be modified.

According to the method for bonding a skin material of a vehicle seat according to a fourth aspect of the present invention, a pressing blade for a pattern is formed on an upper mold of the bonding jig, and the skin material is adjusted in accordance with a pattern of a pad material. Is pressed by the mesh-like surface pressing member and the pattern pressing blade, so that the durability and attachment of the surface pressing member of the bonding jig can be improved, and the surface of the surface material can be raised by brushing or damaged by high temperature of the surface material. Can be prevented, and the desired pattern can be reliably obtained with the pattern pressing blade.

According to the method for bonding a skin material of a vehicle seat according to the fifth aspect of the present invention, a turning mechanism is provided on the upper die of the bonding jig, and a locking mechanism is provided on a turning arm of the turning mechanism. The second surface pressing member is attached via the first surface pressing member, and after the first surface pressing member presses the skin material corresponding to the seat main portion, the wrinkles of the skin material corresponding to the front portion of the seat are extended, and the second The surface pressing member is pressed against the skin material corresponding to the seat front by rotating the rotation arm of the rotation mechanism, and the wrinkles of the skin material corresponding to the seat front are extended by the lock mechanism in a state where the wrinkles are extended. Since the pressing state of the second surface pressing member is maintained, the second surface pressing member is rotated while the skin material corresponding to the seat main portion is pressed by the first surface pressing member. The first surface pressing unit By while pressing the skin material corresponding to the sheet main portion can see the wrinkles of the front portion of the skin material or the like from the outside, it is possible to correct the wrinkles easily,
In a state where the wrinkles are corrected, the pressing mechanism can hold the pressing state of the front surface pressing member by the lock mechanism and can be heated by the heating means, so that a sheet with excellent appearance without wrinkles and the like can be obtained.

According to the present invention, the set jig and the pressure jig can be integrated into an adhesive jig, and wrinkles generated when the surface material is pressed by the surface pressing member of the adhesive jig can be simplified. It can improve the durability and attachment of the surface pressing member, can improve the work efficiency, and can prevent the skin material from brushing down and damage due to the high temperature of the skin material. It is possible to obtain a method for bonding a skin material of a vehicle seat which is excellent in economic efficiency.

[Brief description of the drawings]

FIG. 1 shows a method of bonding a skin material of a vehicle seat according to the present invention, wherein (a) is a cross-sectional explanatory view of a state in which a reactive adhesive is applied to a pad material, and (b) is a skin material. Sectional explanatory drawing of the state in which was set.

FIG. 2 is an explanatory cross-sectional view of an adhesive jig showing a method of bonding a skin material of a vehicle seat according to the present invention.

FIG. 3 is an exploded perspective view of a lower mold and an upper mold of a bonding jig showing a method of bonding a skin material of a vehicle seat according to the present invention.

FIG. 4 is a sectional view of a surface pressing member showing a method of bonding a skin material of a vehicle seat according to the present invention.

FIGS. 5A and 5B show an operation process of an upper die pressing member showing a method of bonding a skin material of a vehicle seat according to the present invention, wherein FIG. 5A is a sectional view of a set state, and FIG. Sectional drawing in the state where the skin material corresponding to the seat main part was pressed by the surface pushing member.

FIGS. 6A and 6B respectively show an operation process of an upper surface pressing member showing a method of bonding a skin material of a vehicle seat according to the present invention, and FIG. 6A shows a state in which a front surface pressing member is rotated. FIG. 4B is a cross-sectional view of a state in which a pressing state by a front surface pressing member is held by a lock mechanism.

FIG. 7 is an explanatory sectional view of a conventional set jig.

FIG. 8 is an explanatory sectional view of a conventional heating tank.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle seat 3 Pad material 3a Pattern 5 Skin material 5a Skin material corresponding to a seat main part 5b Skin material corresponding to a seat front part 7 Reactive adhesive 11 Adhesive jig 12 Lower mold 12a Pad cradle 12b Lower gusset tension Receiver 12c Positioning member 13 Upper die 13a Base frame 13b Bracket 14 Hinge 15 Surface pressing member 15A First surface pressing member 15B Second surface pressing member 15a Frame 15b Net-like body 16a Shaping mesh structure 16b Preventing hair fall Structure 17 for pattern 17 Push blade for pattern 18 Latch lock 21 Heating tank 51 Rotating mechanism 53 Hinge part 55 Rotating arm 57 Lock mechanism 57a Main body 57b Shaft member 58 Operating part 59 Lock release push button

 ──────────────────────────────────────────────────続 き Continued on front page F term (reference) 4F211 AD08 AD24 AG28 AH26 TA03 TC02 TC06 TD11 TJ22 TJ29 TN02 TN47 TN67 TQ06 TQ13

Claims (5)

[Claims] 1. A reactive adhesive is applied to a pad material or a skin material, the skin material is positioned and disposed on the pad material, and the reactive adhesive is heated and reacted by a heating means, and is applied to the surface of the pad material. In a method of bonding a skin material of a vehicle seat to which a skin material is bonded, the pad material is set on a lower mold of an adhesive jig having a pad receiving stand, the skin material is aligned with the pad material, and air permeability is provided. And an upper mold of an adhesive jig formed of a mesh structure for shaping the mesh-shaped surface pressing member and a mesh structure for preventing hair fall of the skin material is matched with a lower mold, and the surface pressing member is formed. Is formed from a first surface pressing member and a second surface pressing member, the reactive adhesive is heated by a heating means in a heating tank, and the skin material is adhered to the surface of the pad material by the reactive adhesive. A method for bonding a skin material of a vehicle seat, comprising: 2. The first surface pressing member is formed on a central surface pressing member corresponding to a sheet main portion, and the second surface pressing member is formed on a front surface pressing member corresponding to a sheet front portion. The surface material corresponding to the seat main portion is pressed by the center surface pressing member, and the skin material corresponding to the seat front portion is pressed by the front surface pressing member. Method for bonding a skin material of a vehicle seat. 3. A skin material corresponding to a seat main portion is pressed by the first surface pressing member, and then a skin material corresponding to a seat front portion is pressed by the second surface pressing member. The method for bonding a skin material of a vehicle seat according to claim 2. 4. A pressing blade for a pattern is formed on an upper mold of the bonding jig, and a skin material is pressed by a mesh-like surface pressing member and a pressing blade for a pattern in accordance with a pattern of a pad material. The method for bonding a skin material of a vehicle seat according to claim 1, wherein 5. A rotating mechanism is provided on an upper mold of the bonding jig,
The second arm is connected to a turning arm of the turning mechanism via a lock mechanism.
After pressing the surface material corresponding to the seat main portion by the first surface pressing member, the wrinkles of the skin material corresponding to the front portion of the seat are extended, and the second surface pressing member is turned. The second surface pressing member is pressed by the lock mechanism in a state in which the rotating arm of the moving mechanism is pressed against the skin material corresponding to the front portion of the seat by rotating, and wrinkles of the skin material corresponding to the front portion of the seat are extended. The method for bonding a skin material for a vehicle seat according to claim 3 or 4, wherein the pressing state is maintained.