JPH07185154A - Method of attaching seat trim - Google Patents

Abstract

PURPOSE:To allow a trim to be attached to a pad quickly and realizes the strict attachment of them. CONSTITUTION:Multiple hook members 4, whose engaging openings at their tops are facing to the trim, are formed at places corresponding to through holes 11 on the back side of the trim 3 which coats the surface of a pad 1 so that the hook members are projected from the surface, and trim 3 with up side down is placed on a board 5 from which projections 51 are projected corresponding to multiple through holes 11 so that hook members 4 are engaged with the projections 51, then a pad 1 with up side down is placed on the back side of the trim 3 so that the hook members 4 correspond to through holes 11. Additionally, an engaging wire 2 is provided so that the wire passes through the through holes 11 in the back side of the pad 1, and a pressing tool 6 in which adjusting holes 61 corresponding to the through holes 11 are dug in a flat plate is placed so that the adjusting holes 61 are aligned with the through holes 11, the pressing tool 6 is pressed against the pad 1, and the hooks 43 of the hook members 4 are engaged with the wire 2 in the through holes 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat trim attaching method for attaching a trim to a pad such as an automobile seat.

[0002]

2. Description of the Related Art A sheet for automobiles or the like is usually formed by covering the surface of a pad made of a foamable synthetic resin with a trim. A seated person on such a seat often moves his / her waist during a driving operation or the like, and the trim may be displaced. Therefore, the trim is firmly attached to the pad so that the trim on the pad does not shift.

Conventionally, the trim is attached to the pad by exposing the wire embedded in the pad to the outside by digging it up from a plurality of cracks or the like provided at appropriate places, and by clipping the wire to the exposed wire. However, in such an operation, it is necessary to apply force to the fingers, and the fingers are very tired, so that there is a problem in that the efficiency is not significantly improved.

Further, since the wire is embedded in the pad as described above, it cannot be easily separated, and when the sheet is disposed of, the synthetic resin material should be recycled to be applied to the raw material such as fuel. Considering this, there is also a disadvantage that the wire interferes and cannot be used as a raw material for recycling.

Therefore, in recent years, a method of adhering and fixing a trim to a pad has been disclosed in Japanese Patent Laid-Open No. 62-181086 and Japanese Patent Publication No. 4-36716. If the trim is adhered to the pad, it is not necessary to carry out the above-mentioned clip fastening, and the problem of recycling is solved.

[0006]

By the way, in the method of adhering the trim and the pad disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 62-181086 and Japanese Patent Publication No. 4-36716, the surface of the pad is recessed. Adhesive is applied to the U-shaped joint groove provided, the sewn part of the trim is fitted into the joint groove to which the adhesive is applied, and then a jig having a ridge corresponding to the joint groove is pressed. The sewn portion is pressed into the joint groove to bond the trim to the pad.

However, in the above-described method for connecting the trim and the pad, it takes a considerable time for the applied adhesive to dry and the adhesive effect to be sufficient, and as a result, the operation for adhering the trim cannot be completed. There is a problem. Also, since the trim and the pad are simply adhered in a linear shape, the bonding force between them is weak, and the force that shifts the trim due to changes in the seated person's posture on the seat, etc. is repeated. If it acts, the adhesive between the trim and the pad will come off, and the trim will peel off from the pad.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to quickly join a trim to a pad and to obtain a strong joined state of both. It is intended to provide a method for fastening trims.

[0009]

According to a first aspect of the present invention, there is provided a seat trim fastening method in which a pad made of a foamable synthetic resin is arranged inside and substantially parallel to an edge of the pad. A plurality of through holes are drilled, and a locking wire is arranged along each through hole on the back surface of the pad on which the plurality of through holes are drilled,
A plurality of hooks each having an engaging portion at the tip thereof are provided on the back surface of the trim covering the surface of the pad and corresponding to the through holes, and the hooks are fitted into the through holes from the surface of the pad. In a seat trim engaging method for engaging a trim with a pad by engaging an engaging portion with the locking wire, a base provided with an upright means for erecting a hook provided on the upside-down trim, and a back surface. Using a compression jig having an adjustment hole corresponding to the through hole of the pad, the trim upside down so as to erect the hook by the erecting means is mounted on the base, and the upright hook is fitted into the through hole. In this way, the pad which was turned upside down is mounted on the trim, the locking wire is arranged along the through hole on the pad, and the compression jig is padded so that the adjusting hole corresponds to the through hole. of Disposed on the engaging portion of the hook in the adjustment hole by compressing the pad by pressing the compression jig is characterized in that the engaging to said wire.

According to a second aspect of the present invention, in the seat trim fastening method, a plurality of through holes are formed inside the edge portion of the foam synthetic resin pad so as to be arranged substantially parallel to the edge portion. Then, a locking wire is arranged along each through hole on the back surface of the pad in which the plurality of through holes are formed, and the back surface of the trim covering the surface of the pad, which corresponds to the through hole. A plurality of hooks each having an engaging portion at the tip are provided, each hook is fitted into each through hole from the surface of the pad, and each engaging portion is engaged with the locking wire to attach the trim to the pad. In the seat trim attachment method,
A plurality of hooks each having a pair of engaging portions whose directions are opposite to each other and whose openings are oriented in the direction of the trim are provided at a tip end in a portion corresponding to the through hole, and one engaging portion of the inside-out trim is engaged. Using the base on which the engaging protrusion is provided and the compression jig having the pressing protrusion corresponding to the through hole of the pad on the back surface, engage the one engaging portion with the engaging protrusion. Mount the trim upside down in this way on the base, place the pad with the front and back reversed so that the through hole of the pad corresponds to the above-mentioned engaging projection, and place it on the trim and gently align it with the through hole. Disposing a locking wire, and disposing a compression jig on the pad so that the pressing protrusion corresponds to the wire on the through hole,
By pressing this compression jig to compress the pad, the other engaging portion is engaged with the wire in the through hole.

A seat trim engaging method according to a third aspect of the present invention is the seat trim engaging method according to the first or second aspect, wherein a hook having an engaging portion at a tip thereof is connected to the hook. A hook member is composed of the holding part,
The hook is attached to the trim by sewing the holding portion of the hook to the trim, and the holding portion exposed on the surface of the trim is torn off after the operation of engaging the trim with the pad. Is.

[0012]

According to the seat trim engaging method of the first aspect, the pad is pressed to bring it into a compressed state, and the wire provided on the back surface of the pad is engaged with the engaging portion of the hook fitted in the through hole. The trim can be fastened to the pad with a simple operation. Then, if the compressed state of the pad is released after the engagement, the pad is restored to its original size, and by this restoration, the trim is pulled into the through hole via the hook and the trim is stretched on the surface of the pad. It becomes a state.

Further, since the wire is only arranged on the back surface of the pad and is not buried inside the pad,
When the sheet is disposed of as waste, it can be used as it is as a raw material for recycling fuel or the like by simply separating the wire.

Furthermore, by disposing the trim with the back surface facing upward so that the hooks correspond to each other on the base plate on which the positioning protrusions corresponding to the plurality of through holes are projected, it is possible to easily and quickly perform the trim operation. The mating portion can face the through hole of the pad.

Then, a pad is arranged on the trim mounted on the base, a wire is placed along the through hole, and a compression jig having an adjusting hole corresponding to the through hole is provided in each adjusting hole. Are arranged so as to correspond to the respective through-holes and pressed, and enter into the engaging portion through the opening at the tip of the hook, and the trim and the pad are brought into the engaged state via the hook.

After that, the pad is restored to its original size by releasing the pressing force of the compression jig, and by this restoration, the trim is pulled into the through hole via the hook and the trim is stretched on the surface of the pad. It becomes a state. By using such a base and a compression jig, it becomes possible to easily and surely attach the trim to the pad.

According to the seat trim attachment method of the second aspect, a pair of hooks are provided such that the tips of the hooks are opposite to each other in the portions corresponding to the through holes of the pad, and the openings are oriented in the trim direction. The engaging portion is formed, and by engaging one of the pair of engaging portions with the engaging protrusion,
In the stable state, the other engaging portion can be set at a position corresponding to the wire placed along the through hole of the pad.

Since a pressing projection corresponding to the wire placed on the pad is provided on the back surface of the compression jig, the compression jig is pressed while the pressing projection is in contact with the wire. Then, the pad is compressed, and the wire is pushed by the pressing protrusion to be pushed into the through hole of the pad and brought into a state of being engaged with the other engaging portion.

After that, by releasing the pressing force of the compression jig, the pad is restored to its original size. By this restoration, the trim is pulled into the through hole via the hook, and the trim is stretched on the surface of the pad. It becomes a state. By using such a base and a compression jig, it becomes possible to easily and surely attach the trim to the pad.

According to the seat trim fastening method of the third aspect, since the holding portion is made of the soft synthetic resin, the holding portion can be easily attached to the trim by sewing. After the engagement of the trim with the pad is completed, the holding portion exposed to the outside can be easily torn off.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a partially cutaway perspective view illustrating a state of a pad and a trim before engagement for explaining a first engagement method according to the present invention. As shown in this figure, in the present invention, a pad 1 made of a foamable synthetic resin such as urethane foam, polyethylene foam or polypropylene foam is used as the interior material of the sheet. The pad 1 shown in FIG. 1 has been turned upside down to carry out the fastening method of the present invention.

A plurality of through-holes 11 are bored in the inner portion of the side edge of the pad 1 substantially in parallel with the edge, and the through-holes 11 are arranged so as to have a U-shape.
The pad 1 of this embodiment is for a vehicle seat,
Two rows of holes in which three through holes 11 are formed in the vehicle length direction of the pad 1 are formed, and one row of holes in which two through holes 11 are formed in the vehicle width direction are formed.

Further, on the surface of the pad 1 (the back side of the paper surface in FIG. 1), the drawing groove 1 corresponding to the row of the through holes 11 is formed.
2 is recessed. A U-shaped locking wire 2 is arranged on the back surface of the pad 1 so as to cross each through hole 11.

On the other hand, the trim 3 for covering the surface of the pad 1 is arranged on the lower side of the pad 1, that is, on the surface side of the pad 1 in the state of being turned upside down. The trim 3 includes a pair of lateral trims 31 in the vehicle width direction, a central trim 32 between the lateral trims 31, and a rear trim (not shown).

Then, the respective trims 31, 32 are sewn on the back side by palm stitching so that the trims 3 to U are sewn.
A sewing portion 33 protruding in a V shape is formed. The sewn portion 33 is shaped so as to correspond to the lead-in groove 12.

Such side trim 31 and central trim 3
At the sewn portion 33, the hook member 4 made of synthetic resin is sewn integrally in a state of being sandwiched between the edge portions of the both trims. The hook member 4 is a belt-shaped main body 41 integrally sewn to the sewn portion 33, and a protrusion provided corresponding to the main body 41 so as to be inserted into the through hole 11 of the pad 1. A portion 42 and a hook 43 having a fishhook-like engaging portion 430 at the tip joined to the tip of the protrusion 42;
The positioning piece 44 is provided so as to face the protrusion 42 and project from the other edge of the main body 41.

In the present embodiment, the main body 41, the protrusion 42 and the positioning piece 44 of the hook member 4 are made of flexible soft synthetic resin, and the hook 43 is made of hard synthetic resin. ing. A thick portion 42a is formed at the tip of the protrusion 42, and a thick portion 43a is also formed at the base end of the hook 43. The both are joined to each other with an adhesive or by heat welding. Has been done. In the case of the present embodiment, the main body portion 41, the protruding portion 42 and the positioning piece 44 form a hook member holding portion according to the present invention.

A thin portion 41a extending in the longitudinal direction is formed on the outer side of the sewn portion 33 of the body 41 (below the sewn portion 33 in FIG. 2). . Perforations may be formed instead of the thin portion 41a.

The pad 1 and the trim 3 as described above are coupled to each other via the hook member 4 penetrating the through hole 11 and the locking wire 2 arranged across the through hole 11 to form a surface of the pad 1. The trim 3 is attached to the. Further, in the first fastening method of the present invention, the base 5 and the flat plate-shaped compression jig 6 are used in order to smoothly perform the fastening operation.

The base 5 is a pedestal for placing the trim 3 on the pad 1 when the trim 3 is attached to the pad 1. A plurality of bases are provided on the surface so as to correspond to the positioning pieces 44 projecting from the hook member 4. Positioning projections (standing means) 51 are provided in a protruding manner. The upper surface of the positioning protrusion 51 is provided with a narrow groove 52 that penetrates the positioning piece 44 of the hook member 4. Further, the compression jig 6 is provided with a plurality of adjustment holes 61 corresponding to the through holes 11 of the pad 1, and a grip portion 62 is provided at the central portion so as to project.

The first fastening method of the seat trim of the present invention will be described below. First, as shown in FIG. 1, the trim 3 is turned over so that the hook 43 of the hook member 4 sewn to the sewn portion 33 is erected from the trim 3. Then, the positioning piece 44 on the opposite side is in a state of hanging downward.

Next, the tip of the positioning piece 44 is attached to the base 5
Insert into the narrow groove 52 of the upper positioning protrusion 51, and trim 3
Is fixed on the base 5. In this state, the hook 43 in the upright state is inserted into the through hole 11 to mount the pad 1 on the trim 3. Then, the locking wire 2 is arranged on the back surface of the pad 1 so as to traverse all the through holes 11, and in this state, the adjusting hole 61 corresponds to the through hole 11 and is compressed while gripping the grip portion 62. When the jig 6 is pressed onto the pad 1 and then the compression jig 6 is pressed downward with a force, the pad 1 is compressed and contracted as shown in FIG. 3, and the hook 43 of the hook member 4 is engaged. The portion 430 gets over the locking wire 2 and enters the adjustment hole 61.

When the pressing force applied to the compression jig 6 is relaxed in this state, the overriding engagement portion 430 is engaged with the locking wire 2. Then, when the pressing of the pad 1 by the compression jig 6 is completely released, the pad 1 is restored to the original size, and as a result, the engaging portion 430 has the through hole 1 as shown in FIG.
The engaging wire 2 is pulled into the through hole 11 while being engaged with the locking wire 2, and the operation of attaching the trim 3 to the pad 1 is completed.

FIG. 5 is a partially cutaway perspective view illustrating a state in which the trim on the pad is pressed by the compression jig for explaining the second fastening method according to the present invention. Further, FIG. 6 is a partially enlarged partially cutaway perspective view of the main part of FIG.
The state where the engaging portion at the tip of the hook is engaged with the engaging protrusion is shown. Engaging projections 53 having a considerable height corresponding to the row of through holes 11 of the pad 1 are provided on the base 5a.

Further, instead of the engaging portion 430 of the previous example, a pair of engaging portions 43 'whose directions are opposite to each other and whose opening faces the direction of trim are formed in a forked shape at the tip of the hook member 4a. ing. Of the pair of engaging portions 43 ', the inner engaging portion 43b is for engaging the locking wire 2, and the outer engaging portion 43c is for engaging the engaging projection 53. It is a thing. In this example, the hook member 4a is not formed into a strip shape as in the previous example, and as shown in FIG. 6, independent pieces are sewn integrally with the sewn portion 33 of the trim 3 by sewing. Installed.

In the case of this example, a holding portion according to the present invention is formed on the base end side of the hook member 4a, and the sewing portion 3 is attached to this holding portion.
3 is formed. The hook is made of hard synthetic resin, and the holding portion is made of soft synthetic resin.

On the other hand, on the back surface of the compression jig 6a, a plurality of pressing protrusions 63 corresponding to the through holes 11 of the pad 1 are provided so as to project downward, and their tips are locked across the through holes 11. A concave arc surface is formed so as to correspond to the wire 2.

The base 5a and the compression jig 6a as described above will be described below.
A method of attaching the seat trim by the second method using and will be described. First, as shown in FIG. 5, both side trims 31 of the trim 3 are put inside the engaging protrusions 53 to engage the outer engaging portions 43c of the hook members 4a with the tips of the engaging protrusions 53. Then, the central trim 32 is suspended between the engaging protrusions 53.

Next, the pad 1 is placed on the engaging projection 53 while adjusting the through hole 11 so as to correspond to the hook member 4a. After that, the locking wire 2 is arranged on the road surface of the pad 1 so as to traverse all the through holes 11, and the compression jig is placed on the pad 1 so that the tip of the pressing protrusion 63 shown by the alternate long and short dash line contacts the locking wire 2. When 6a is placed and pressed downward, the locking wire 2 is pressed by the pressing protrusion 63 and fits into the through hole 11 in a state where the pad 1 is compressed, and the tip of the outer engaging portion 43c is crossed over. And engages with the engaging portion of the inner engaging portion 43b.

Thereafter, when the compression of the pad 1 by the compression jig 6a is released, the trim 3 is attached to the pad 1 in the through hole 11 via the inner engaging portion 43b and the locking wire 2.

The present invention is not limited to the case where the hook member is sewn to the trim only at the holding portion to which the soft synthetic resin is applied, but to the hook to which the hard synthetic resin is applied. You may make it sewn over the part. By doing so, the hook is effectively prevented from coming off the holding portion.

Further, in the above-mentioned embodiment, the hook and the holding portion are joined by adhesion or heat fusion, but in the present invention, the hook and the holding portion are joined by adhesion or heat fusion. It is not limited, but hard and soft synthetic resin is used as the raw material from the beginning, the hard synthetic resin raw material is applied to the hook portion, and the soft synthetic resin raw material is applied to the holding portion. It is possible to once manufacture a band-shaped body in which the tip of the hard part is folded back, cut out the folded-back portion of this band-shaped body to form the hook engaging portion in the remaining part, and use it as the hook member of the previous example. it can. Further, the hook member of the latter example can be obtained by dividing the band-shaped body into a plurality of pieces in the width direction. By doing so, the operation of joining the hook and the holding portion is omitted, and labor can be saved in manufacturing the hook member.

[0043]

According to the method of attaching the seat trim according to the first aspect of the present invention, the pad is pressed into a compressed state, and the hook fitted into the through hole is engaged with the wire provided on the back surface thereof. The trim can be fastened to the pad by a simple operation of locking the portion. Then, if the compressed state of the pad is released after the engagement, the pad is restored to its original size, and by this restoration, the trim is pulled into the through hole via the hook and the trim is stretched on the surface of the pad. It becomes a state.

Further, since the wire is only arranged on the back surface of the pad and is not buried inside the pad,
When the sheet is disposed of as waste, it can be used as it is as a raw material for recycling fuel or the like by simply separating the wire.

Further, by disposing the trim back face up so that the respective hooks correspond to each other on the base plate on which the positioning projections corresponding to the plurality of through holes are projected, the trim function can be easily and quickly arranged. The mating portion can face the through hole of the pad.

Then, the pad is arranged on the trim mounted on the base, the wire is placed along the through hole, and the compression jig having the adjusting hole corresponding to the through hole is provided in each adjusting hole. Are arranged so as to correspond to the respective through-holes and pressed, and enter into the engaging portion through the opening at the tip of the hook, and the trim and the pad are brought into the engaged state via the hook.

Thereafter, by releasing the pressing force of the compression jig, the pad is restored to its original size. By this restoration, the trim is pulled into the through hole via the hook, and the trim is stretched on the surface of the pad. It becomes a state. By using such a base and a compression jig, it becomes possible to easily and surely attach the trim to the pad.

According to the method of attaching the seat trim according to the second aspect of the present invention, the tips of the hooks are opposite to each other in the portions corresponding to the through holes of the pads, and the openings are oriented in the direction of the trim. A pair of engaging portions are formed, and by engaging one of the pair of engaging portions with the engaging protrusion, the other engaging portion is stably aligned with the through hole of the pad. It is possible to set the position at a position corresponding to the wire that has been placed.

Since a pressing projection corresponding to the wire placed on the pad is provided on the back surface of the compression jig, the pressing jig is pressed with the pressing projection in contact with the wire. Then, the pad is compressed, and the wire is pushed by the pressing protrusion to be pushed into the through hole of the pad and brought into a state of being engaged with the other engaging portion.

After that, the pad is restored to its original size by releasing the pressing force of the compression jig, and by this restoration, the trim is pulled into the through hole via the hook and the trim is stretched on the surface of the pad. It becomes a state. By using such a base and a compression jig, it becomes possible to easily and surely attach the trim to the pad.

According to the seat trim fastening method of the third aspect of the present invention, since the holding portion is made of the soft synthetic resin, the holding portion can be easily attached to the trim by sewing. At the same time, the holding portion exposed to the outside can be easily torn off after the engagement of the trim with the pad is completed.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view illustrating a state of a pad and a trim before engagement for explaining a first engagement method according to the present invention.

FIG. 2 is a partially enlarged partially cutaway perspective view of a main part of FIG. 1, showing a state in which a band-shaped hook is supported by a positioning protrusion.

FIG. 3 is a cross-sectional view showing a state in which a pad on a trim arranged on a base is pressed by a compression jig.

FIG. 4 is a cross-sectional view showing a state in which a pad is attached to a trim.

FIG. 5 is a cross-sectional view showing a state in which a trim on a pad is pressed by a compression jig for explaining a second fastening method according to the present invention.

6 is a partially enlarged partially cutaway perspective view of a main part of FIG. 5, showing a state in which an engaging portion at a tip of a hook is engaged with an engaging protrusion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 pad 11 through hole 12 pulling groove 2 locking wire 3 trim 31 side trim 32 center trim 33 sewn portion 4, 4a hook member 41 main body portion 42 projecting portion 43 hook 430 engaging portion 43b inner engaging portion 43c outer engagement Joint part 44 Positioning piece 5, 5a Base 51 Positioning projection (standing means) 52 Fine groove 53 Positioning projection 6,6a Compression jig

Claims (3)

[Claims] 1. A pad having a plurality of through holes formed inside the edge portion of a foam synthetic resin pad so as to be arranged substantially parallel to the edge portion. Arrangement of locking wires along each through hole on the back surface, and a plurality of hooks having an engaging portion at the tip on the back surface of the trim covering the surface of the pad and corresponding to the through hole,
In the seat trim attaching method of attaching the trim to the pad by inserting the hooks into the through holes from the surface of the pad and engaging the engaging portions with the locking wires, the hook is provided on the flipped trim. Using a base on which a standing means for standing up the hook is formed and a compression jig having an adjustment hole corresponding to the through hole of the pad on the back surface, and turning the trim upside down so that the hook stands up by the standing means. Installed on the base, put the hooks in the upright state into the through holes so that the pads turned upside down are installed on the trim, and the locking wires are arranged on the pads along the through holes. A compression jig is arranged on the pad so that the adjustment hole corresponds to the through hole, and the pad is compressed by pressing the compression jig so that the engaging portion of the hook in the adjustment hole is the wire. To engage Engaging method seat trim, characterized in that. 2. A plurality of through holes are formed inside the edge of the foam synthetic resin pad so as to be arranged substantially parallel to the edge, and the pad having the plurality of through holes is formed. Arrangement of locking wires along each through hole on the back surface, and a plurality of hooks having an engaging portion at the tip on the back surface of the trim covering the surface of the pad and corresponding to the through hole,
In the seat trim attachment method for attaching the trim to the pad by inserting the hooks into the through holes from the surface of the pad and engaging the engaging portions with the locking wires, the method corresponds to the through holes. A plurality of hooks each having a pair of engaging portions whose directions are opposite to each other and whose openings are oriented in the direction of the trim are provided at the tip of the engaging portion, and an engaging protrusion that engages with one engaging portion of the inside-out trim is provided. Using a projecting base and a compression jig having a pressing projection corresponding to the through hole of the pad on the back surface, the one engaging portion was turned over so as to engage with the engaging ridge. Place the trim on the base, place the pad with the front and back reversed so that the through hole of the pad corresponds to the above-mentioned engaging projection, and place the pad on the pad along the through hole with the locking wire. Arranged, the pressing protrusion corresponds to the wire on the through hole A sheet is characterized in that a compression jig is arranged on the pad, and the pad is compressed by pressing the compression jig so that the other engaging portion is engaged with the wire in the through hole. How to attach the trim. 3. A hook member is composed of a hook having an engaging portion at its tip and a holding portion connected to this hook,
The hook is attached to the trim by sewing the holding portion of the hook to the trim, and the holding portion exposed on the surface of the trim is torn off after the operation of engaging the trim with the pad. Item 3. A method of fastening a seat trim according to item 1 or 2.