JP2020124955A - Buckle device for seat belt and its manufacturing method - Google Patents

Abstract

To provide a buckle device by which a wire harness can be easily held by a woven cloth and the wire harness can be appropriately attached to a vehicle body side from a buckle, and to provide its manufacturing method.SOLUTION: A buckle device for a seat belt comprises a woven cloth 30 connecting an anchor plate and a buckle. A wire harness connected to a circuit board in the buckle is supported by the woven cloth via a belt-like member 70 and is laid along a widthwise side of the woven cloth 30. The belt-like member 70 obtains: a wind portion 71 having an adhesive surface 70a on at least part of one side surface and wound around the wire harness 60; a stuck portion 72 continuing from the wind portion 71 and in which the belt-like members are stuck by means of the adhesive surface 70a; an extension portion 73 extending opposite the wind portion 71 from one end 70e of each belt-like member 70 composing the stuck portion 72, and from which part of the adhesive surface 70a is exposed to a surface. The extension portion 73 is stuck to the woven cloth 30 by means of the adhesive surface 70a and at least the extension portion 73 is sewn to the woven cloth.SELECTED DRAWING: Figure 2

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat belt buckle device and a manufacturing method thereof, and more particularly to a seat belt buckle device including a wire harness arranged from the buckle to a vehicle body side and a manufacturing method thereof.

BACKGROUND ART Conventionally, as a seat belt buckle device having a function of detecting attachment/detachment of a vehicle seat belt, for example, a vehicle seat belt detection device described in Patent Document 1 is known. This vehicle seat belt detection device includes a connector portion that can be connected to a buckle switch of a seat belt buckle, and a control circuit that receives a detection signal from the buckle switch inside the connector portion and determines whether the tongue is attached or detached. And a communication circuit that transmits a result signal based on the determination result from the control circuit to the meter control unit connected via the in-vehicle network. Further, the control circuit and the communication circuit are electrically connected to a wire harness connected to the wiring of the in-vehicle network.

JP, 2011-88580, A

By the way, in the vehicle seat belt detection device described in Patent Document 1, the wire harness needs to be routed from the connector portion on the buckle side to the vehicle body side, but the description about protection of the wire harness and appropriate handling is described. It has not been. In particular, in the buckle device provided in the rear seat, there is a problem that the wire harness may be rubbed when the occupant gets on or off, or the wire harness may be caught.

The present invention has been made in view of the above circumstances, and an object thereof is to make it possible to easily hold a wire harness on a woven cloth, and to appropriately handle the wire harness from the buckle to the vehicle body side. It is an object of the present invention to provide a seat belt buckle device and a manufacturing method thereof.

The above object of the present invention is achieved by the following configurations.
(1) Anchor plate that can be attached to the vehicle body,
With a buckle that allows the tongue of the seat belt to be detachably attached
A woven fabric including an overlapping portion that is folded back by inserting through the respective hole portions formed in the anchor plate and the buckle, and that is overlapped at least in three layers,
A circuit board provided on the buckle,
A wire harness that is connected to the circuit board and transmits at least an electric signal to and from the vehicle body side,
A seat belt buckle device comprising:
The wire harness is supported by the woven fabric via a belt-shaped member, and is routed along the lateral direction of the woven fabric,
The belt-shaped member has an adhesive surface on at least a part of one side surface, and a winding portion wound around the wire harness and the belt-shaped members are bonded to each other by the adhesive surface continuously from the winding portion. The laminating part, and an extending part extending from one end of the strip-shaped member forming the laminating part to the side opposite to the winding part and exposing a part of the adhesive surface on the surface. A buckle device for a seat belt, wherein a projecting portion is attached to the woven cloth by the adhesive surface, and the pasting portion and the extending portion are attached to the woven cloth by sewing.
(2) The overlapping portion has a folded portion that is folded inward, a back surface portion that is folded back from the folded portion and is continuous, and a front surface portion that is folded back from the back surface portion and continuous.
The bonded portion and the extended portion of the strip-shaped member are inserted between the folded portion and the front surface portion of the overlapping portion of the woven fabric or between the folded portion and the back surface portion. The buckle device for a seat belt according to (1), which is sewn with.
(3) The overlapping portion has a folded portion that is folded inward, a back surface portion that is folded back from the folded portion and is continuous, and a front surface portion that is folded back from the back surface portion and continuous.
The laminating part and the extending part of the strip-shaped member are sewn in a state of being arranged on the outer surface of the front surface part or the back surface part of the overlapping part of the woven fabric, (1) Seat belt buckle device.
(4) In the sewing, any one of (1) to (3), in which the bonded portion and the extended portion of the strip-shaped member are attached to the woven fabric and the overlapping portions of the woven fabric are coupled to each other. The buckle device for a seat belt according to one.
(5) The woven cloth is provided with a harness insertion hole through which the wire harness is passed from one end side in the width direction of the woven cloth to the other end side thereof. (1) to (4) Seat belt buckle device.
(6) The seat belt buckle device according to any one of (1) to (5), wherein the belt-shaped member is made of a woven fabric.
(7) Anchor plate that can be attached to the vehicle body,
With a buckle that allows the tongue of the seat belt to be detachably attached
A woven fabric including an overlapping portion that is folded back by inserting through the respective hole portions formed in the anchor plate and the buckle, and that is overlapped at least in three layers,
A circuit board provided on the buckle,
A wire harness that is connected to the circuit board and transmits at least an electric signal to and from the vehicle body side,
A method for manufacturing a buckle device for a seat belt, comprising:
A step of using a strip-shaped member having an adhesive surface on at least a part of one side surface,
While winding the strip-shaped member around the wire harness, a step of bonding the strip-shaped members to each other in a state in which the positions of one end and the other end of the strip-shaped member are shifted to expose a part of the adhesive surface,
Attaching the adhesive surface to a predetermined position of the woven fabric and temporarily fixing the strip-shaped member to the woven fabric;
A step of sewing the strip-shaped member on the woven fabric,
A manufacturing method of a buckle device for a seat belt, wherein the wire harness is supported by the woven cloth via the belt-shaped member and is routed along a lateral direction of the woven cloth.
(8) In the seat belt according to (7), in the sewing step, the bonding portion and the extension portion of the strip-shaped member are attached to the woven fabric, and the overlapping portions of the woven fabric are coupled to each other. Buckle device manufacturing method.

According to the buckle device for a seat belt of the present invention, the wire harness is supported by the woven cloth via the belt-shaped member and is routed along the lateral direction of the cloth, and the belt-shaped member is provided on one side surface. At least a part has an adhesive surface, and a winding portion wound around the periphery of the wire harness, a bonding portion in which band-shaped members are bonded to each other by an adhesive surface continuously from the winding portion, and a bonding portion are configured. An extension part that extends from one end of the strip-shaped member to the side opposite to the winding part, and a part of the adhesive surface is exposed on the surface, and the extension part is attached to the woven fabric by the adhesive surface, and the attachment part And the extending portion is attached to the woven fabric by sewing. As a result, the wire harness can be easily held by the woven cloth, and the wire harness can be properly routed from the buckle to the vehicle body side.

According to the method for manufacturing a buckle device for a seat belt of the present invention, a step of using a belt-shaped member having an adhesive surface on at least a part of one side surface, and winding the belt-shaped member around the wire harness, and one end of the belt-shaped member. A step of sticking the band-shaped members together with the other end part displaced to expose a part of the adhesive surface, and a step of temporarily sticking the band-shaped member to the woven cloth by sticking the adhesive surface to a predetermined position of the woven cloth. And a step of sewing the strip-shaped member to the woven fabric, and the wire harness is supported by the woven fabric via the strip-shaped member and arranged along the lateral direction of the woven fabric. Therefore, it is possible to easily perform the sewing work in the step of temporarily fixing the band-shaped member, it is possible to easily hold the wire harness on the woven cloth, and it is possible to appropriately handle the wire harness from the buckle to the vehicle body side.

(A) is a top view of the buckle device of the seat belt of a 1st embodiment of the present invention, and (b) is a side view which cuts a wire harness and a beltlike member in the position which followed the II line of (a). It is a figure and (c) is an enlarged view of I'section of (b). It is an expanded sectional view which shows typically the cross section of the position along the II-II line of Fig.1 (a). It is a top view which shows the state before bending the woven cloth of the buckle apparatus of the seat belt shown in FIG. Part of the manufacturing process of the buckle device for the seat belt shown in FIG. 1 is shown, (a) is a plan view of the belt-shaped member, (b) is a perspective view showing a state in which the belt-shaped member is wound around the wire harness, and (c) is It is a top view which shows the state which stuck the strip|belt-shaped member to the woven cloth. It is a figure which shows the modification of the manufacturing process of a buckle apparatus. (A) is a side view which shows the modification of 1st Embodiment, (b) is a VI section enlarged view of (a). (A) is a top view of the buckle apparatus of the seatbelt of 2nd Embodiment of this invention, (b) is a side view which cut|disconnected the wire harness and the strip|belt-shaped member in the position of the VII-VII line of (a). Yes, (c) is an enlarged view of VII' of (b). It is a top view which shows the modification of this invention.

Hereinafter, a buckle device for a seat belt and a method for manufacturing the same according to each embodiment of the present invention will be described in detail with reference to the drawings.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, a buckle device 10 for a seat belt according to a first embodiment includes an anchor plate 11 that can be attached to a vehicle body side, a buckle 20 to which a tongue 1 of a seat belt is detachable, an anchor plate 11 and a buckle 20. The belt-shaped woven cloth 30 that connects the wire harness, the circuit board 50 provided in the buckle 20, the wire harness 60 that is connected to the circuit board 50 and transmits at least an electric signal to and from the vehicle body side, and the wire harness 60. The belt-shaped member 70 supported by the woven cloth 30.

The anchor plate 11 includes a flat surface portion 13 into which a bolt (not shown) is inserted into the fastening hole 12 and bolted to a floor surface of the vehicle body side, and the flat surface portion 13 is bent at a predetermined angle and is centered. And a bent portion 15 in which the hole portion 14 is formed.

The buckle 20 has a tongue insertion portion 21 on one end side (right side in the drawing), and a pair of resin covers 22 and 23 on the other end side (left side in the drawing) and a widthwise hook on the resin covers 22 and 23. It has a hole 26 formed between it and the passed metal plate 25.

The woven cloth 30 is inserted into the holes 14 and 26 formed in the anchor plate 11 and the buckle 20 and folded back, and is joined to each other by sewing with the sewing thread 40 at the triple overlapped portion. Has been done.

As shown in FIG. 3, the woven cloth 30 is a webbing having a constant width that is cut into a predetermined length. Then, a folded portion 31 that is folded inward when folded and overlapped, a buckle side folded portion 32 that is folded back at the hole 26 of the buckle 20 at one end of the folded portion 31, and a buckle side folded portion 32 are continuous. The rear surface portion 35 arranged on the rear surface side of the folded portion 31, the plate side folded portion 34 folded back at the hole 14 of the anchor plate 11 at one end of the rear surface portion 35, and the plate side folded portion 34. And a surface portion 33 that is continuous with the surface portion 33. That is, the woven fabric 30 is inserted into the holes 14 and 26 formed in the anchor plate 11 and the buckle 20 and is overlapped in three layers so that the folded portion 31 is sandwiched between the front surface portion 33 and the back surface portion 35. Then, the front surface portion 33, the folded portion 31, and the back surface portion 35, which are overlapping portions, are joined to each other by sewing a substantially middle portion in the longitudinal direction of the overlapped woven cloth 30, and the anchor plate 11 And the buckle 20 are connected.

Further, in the woven cloth 30, in the hole portions 14 and 26 of the anchor plate 11 and the buckle 20, both edge portions 32a and 34a in the width direction are folded inward toward the middle portion in the width direction. In addition, the surfaces of the woven cloths 30 contacting each other, specifically, both edge portions 32a and 34a of the folded portions 32 and 34, and the portions where the end portions 33a of the surface portion 33 and the folding portion 31 contact each other, are bonded or the like. It is joined.

As shown in FIG. 1A, the wire harness 60 is supported by the woven cloth 30 via the belt-shaped member 70, and is arranged along the lateral direction of the woven cloth 30. After extending from the buckle 20, the wire harness 60 passes through a harness insertion hole 30h (see FIG. 1(b)) formed between the folded-in portion 31 and the back surface portion 35 of the woven fabric 30 and weaves the cloth. The cloth 30 is arranged so as to traverse from one end side (lower side in the drawing) of the cloth 30 to the other end side (upper side in the drawing).

The harness insertion hole 30h is formed by a widthwise gap formed between the back surface portion 35 and the folded portion 31 when the woven cloth 30 is passed through the hole portion 26 of the buckle 20.

The belt-shaped member 70 that holds the wire harness 60 is made of a woven fabric, and the material of the woven fabric is not particularly limited, but can be configured as, for example, a synthetic resin woven fabric made of polyethylene terephthalate. In the case of this polyethylene terephthalate fabric, the tensile strength can be set to about 275 N/cm, and the adhesive force of the adhesive surface 70a to the metal surface can be increased to 5 N/cm. Therefore, as compared with the case where the belt-shaped member 70 is made of a nonwoven fabric, the tensile strength is high, the rigidity can be secured, and the adhesiveness is high.

In the present embodiment, as shown in FIG. 2, the strip-shaped member 70 includes a winding portion 71 wound around the wire harness 60, and the strip-shaped members 70 that are continuous from the winding portion 71 by an adhesive surface 70a. The bonded bonding portion 72 and the extending portion 73 that extends from the one end portion 70e of the strip-shaped member 70 forming the bonding portion 72 to the side opposite to the winding portion 71 and exposes a part of the adhesive surface 70a on the surface. And

In addition, in this embodiment, as shown in FIG. 4A, the band-shaped member 70 has an adhesive surface 70 a formed on one side surface over the entire longitudinal direction. The adhesive surface 70a is preferably formed over the entire length of the belt-shaped member 70 from the viewpoint of the ease of manufacturing the belt-shaped member 70 and the retainability of the wire harness 60 by the winding portion 71, but the extended portion It may be formed from the other end portion 70t forming 73 to the portion forming the bonding portion 72 on the side not exceeding the winding portion 71.
The adhesive surface 70a may be previously covered with a release paper not shown in FIG.

In any case, as shown in FIG. 4B, the other end portion 70t of the strip-shaped member 70 forming the extension portion 73 extends from the one end portion 70e so as to form the one end portion 70e and the other end portion 70t. The belt-shaped member 70 is shifted and wound around the wire harness 60, and the wire harness 60 is held.

Next, as shown in FIG. 4C, the adhesive surface 70a is brought into contact with a predetermined position of the folded portion 31 of the woven cloth 30, and the extension portion 73 is attached to the woven cloth 30 by the adhesive force of the adhesive surface 70a. Then, the belt-shaped member 70 is temporarily fixed. In addition, the woven fabric 30 for temporarily fixing may be before the folded portion 31 described below is inserted into the hole portion 26 of the buckle 20 or after it is inserted.

Then, the woven cloth 30 is folded back, the surface portion 33 of the woven cloth 30 is passed through the hole portion 14 of the anchor plate 11, and the folded portion 31 is passed through the hole portion 26 of the buckle 20. In this insertion, the woven cloth 30 is inserted into both the hole portions 14 and 26 up to the positions of the folded portions 32 and 34.

During this insertion, both widthwise edges 32a and 34a (see FIG. 3) of the folded-back portions 32 and 34 are folded inward toward the widthwise intermediate portion. Then, the front surface portion 33 is superposed on the upper side of the folding portion 31 (see FIG. 1B), so that the front surface portion 33, the folding portion 31, and the back surface portion 35 are superposed in three layers.

As a result, the folded portion 31 to which the strip-shaped member 70 is temporarily fixed is sandwiched between the back surface portion 35 and the front surface portion 33, so that the bonding portion 72 and the extending portion 73 of the strip-shaped member 70 are shown in FIG. As described above, the woven cloth 30 is sandwiched between the folded portion 31 and the back surface portion 35. Further, one end of the wire harness 60 is arranged so as to pass through the harness insertion hole 30h between the folded portion 31 and the back surface portion 35.

After that, the bonding section 72 and the extending section 73 are attached to the woven cloth 30 by sewing with the sewing thread 40 while being sandwiched between the folded portion 31 and the back surface section 35 of the woven cloth 30. That is, the sewing here attaches the bonding portion 72 and the extending portion 73 of the belt-shaped member 70 to the woven cloth 30, and also joins the overlapping portions of the woven cloth 30 to each other.
Note that, in FIG. 2, the front surface portion 33, the folded portion 31, the strip-shaped member 70, and the back surface portion 35 are shown separated vertically for convenience, but actually, adjacent portions are in close contact with each other.

Further, in the configuration shown in FIG. 2, the band-shaped member 70 has a configuration in which the bonding portion 72 and the extending portion 73 are sandwiched between the folded portion 31 and the back surface portion 35 of the woven cloth 30, but for example, the folded portion It may be sandwiched between the portion 31 and the surface portion 33.

Further, when the step of winding the strip-shaped member 60 around the wire harness 60 and the step of attaching the strip-shaped member 60 to the woven fabric 30 are performed in different production lines, the adhesive surface 70a exposed at the extending portion 73 is formed. In order to protect the sheet, a release paper 80 that covers the adhesive surface 70a may be used as shown in FIG.

As described above, according to the seat belt buckle device 10 of the present embodiment, the wire harness 60 is supported by the woven cloth 30 via the belt-shaped member 70 and extends along the lateral direction of the woven cloth 30. The strip-shaped member 70 has an adhesive surface 70a on at least a part of one side surface, and a winding portion 71 wound around the wire harness 60 and an adhesive surface 70a continuous from the winding portion 71. A bonding portion 72 in which the band-shaped members are bonded to each other, and an extension from the one end 70e of the band-shaped member 70 forming the bonding portion 72 to the side opposite to the winding part 71, and a part of the adhesive surface 70a is exposed on the surface. The extending portion 73 is attached to the woven fabric 30 by the adhesive surface 70a, and the bonding portion 72 and the extending portion 73 are attached to the woven fabric 30 by sewing. Accordingly, it is possible to provide the seat belt buckle device 10 in which the wire harness 60 can be easily held by the woven cloth 30 and the wire harness 60 can be appropriately routed from the buckle 20 to the vehicle body side. ..

According to the seat belt buckle device 10 of the present embodiment, the bonding portion 72 and the extending portion 73 of the belt-shaped member 70 are provided between the folding portion 31 and the surface portion 33 of the overlapping portion of the woven cloth 30, Alternatively, it is sewn in a state of being inserted between the folded portion 31 and the back surface portion 35. As a result, the belt-shaped member 70 is firmly held on the woven cloth 30 without any step.

Further, according to the seat belt buckle device 10 of the present embodiment, for sewing, the bonding portion 72 and the extending portion 73 of the belt-shaped member 70 are attached to the woven cloth 30, and the overlapping portions of the woven cloth 30 are coupled to each other. To do. Accordingly, the bonding portion 72 and the extending portion 73 of the belt-shaped member 70 can be attached to the woven cloth 30 without separately performing sewing.

Further, according to the seat belt buckle device 10 of the present embodiment, the woven cloth 30 is provided with the harness insertion hole 30h for passing the wire harness 60 from one end side in the width direction of the woven cloth 30 to the other end side. The wire harness 60 is accommodated in the woven fabric 30, and the wire harness 60 can be prevented from being exposed and the wire harness 60 can be held more reliably, and the manipulability of the wire harness 60 can be improved.

Further, according to the buckle device 10 of the seat belt of the present embodiment, since the belt-shaped member 70 is made of a woven fabric, the rigidity of the belt-shaped member 70 can be ensured and the holding property of the wire harness 60 can be improved.

According to the method of manufacturing the seat belt buckle device 10 of the present embodiment, the step of using the strip-shaped member 70 having the adhesive surface 70a on at least a part of one side surface, and the winding of the strip-shaped member 70 around the wire harness 60. At the same time, a step of adhering the strip-shaped members 70 to each other in a state where one end portion and the other end portion of the strip-shaped member 70 are displaced to expose a part of the adhesive surface 70a, and the adhesive surface 70a is placed at a predetermined position on the woven cloth 30. The wire harness 60 is supported by the woven cloth 30 via the band-shaped member 70, and has a step of temporarily attaching the band-shaped member 70 to the woven cloth 30 and a step of sewing the band-shaped member 70 to the woven cloth 30. , Are arranged along the lateral direction of the woven fabric 30. Therefore, the sewing work can be facilitated by the temporary fixing process of the belt-shaped member 70, the wire harness 60 can be easily held by the woven fabric 30, and the wire harness 60 can be appropriately routed from the buckle 20 to the vehicle body side. You can

In addition, in the sewing process, the bonding portion 72 and the extending portion 73 of the belt-shaped member 70 are attached to the woven cloth 30, and the overlapping portions of the woven cloth 30 are coupled to each other. Accordingly, the bonding portion 72 and the extending portion 73 of the belt-shaped member 70 can be attached to the woven cloth 30 without separately performing sewing.

In addition, in the said embodiment, although the bonding part 72 and the extending part 73 are the structure inserted in the overlapping part of the woven cloth 30 in the strip|belt-shaped member 70, the outer surface of the surface part 33 or the back surface part 35 is shown. It may be placed on top and sewn.

For example, in the modified example shown in FIG. 6, the adhesive surface 70a of the extension portion 73 is attached to the outer surface of the back surface portion 35, and the attachment portion 72 and the extension portion 73 are sewn to form a woven fabric. Attached to the cloth 30.

Also in this case, the bonding portion 72 and the extending portion 73 of the strip-shaped member 70 and the overlapping portion of the woven fabric 30 are sewn together, and the manufacturing process can be simplified. Further, in the case of this modified example, after the wire harness 60 and the strip-shaped member 70 are separated from the woven cloth 30, the woven cloth 30 is inserted into the hole portions 14 and 26, folded back, and then overlapped in three layers. The strip member 70 can be attached to the outer surface of the back surface portion 35. Further, the mounting position of the belt-shaped member 70 can be selected according to the arrangement of the wire harness 60.

(Second embodiment)
Next, a buckle device for a seat belt according to a second embodiment of the present invention will be described with reference to FIG. 7. In FIG. 7, parts that are the same as or equivalent to those in the first embodiment are assigned the same reference numerals and explanations are omitted or simplified.

The seat belt buckle device 10 of the present embodiment differs from that of the first embodiment in that the woven cloth 30 is tentatively sewn. That is, as shown in FIG. 7, in the woven cloth 30, a portion in which the folded-in portion 31 folded inward and the back surface portion 35 continuous from the folded-in portion 31 passing through the hole 26 of the buckle 20 are overlapped with each other are sewn. A sewn thread 41 is provisionally sewn on the anchor plate side of the thread 40.

Here, in the buckle device 10, first, the folded portion 31 of the woven cloth 30 is inserted into the hole portion 26 of the buckle 20 and folded back at the folded portion 32, and then the folded portion 31 and the back surface portion 35 are overlapped. The part to be tentatively sewn. At this time, the belt-shaped member 70 is also tentatively sewn (see FIG. 7C). Then, the surface portion 33 is inserted into the hole portion 14 of the anchor plate 11 and is folded back at the folding portion 34, and then the three-fold overlapped portion is sewn together with the strip portion 70 with the sewing thread 40.

When it is difficult to sew a triple-overlapped portion at one time by performing the tentative stitching in this manner, such as when the woven cloth 30 has a short total length, the tentative stitching is performed once, and the overlapping portion is sewn at the time of sewing. Deviation can be prevented, and the workability of sewing can be improved.
Other configurations and operations are similar to those of the first embodiment.

It should be noted that the present invention is not limited to the above embodiment, and can be appropriately modified as necessary.
For example, in the above-described embodiment, the wire harness 60 is configured to pass through the harness insertion hole 30h of the woven cloth 30 and traverse the woven cloth 30 in the width direction, but as in the modification shown in FIG. The harness 60 may be arranged not to cross the width direction of the woven cloth 30 but to be routed along one side in the width direction over the entire area of the woven cloth 30 in the longitudinal direction.

1 Tongue 10 Buckle Device 11 Anchor Plates 14 and 26 Hole 20 Buckle 30 Woven Cloth 30h Harness Insertion Hole 31 Folding Part 33 Front Surface 35 Backside 40 Sewing Thread 50 Circuit Board 60 Wire Harness 70 Belt-Shaped Member 70a Adhesive Surface 71 Winding Part 70e One end 72 Bonding part 73 Extension part

Claims (8)

Anchor plate that can be attached to the vehicle body side,
With a buckle that allows the tongue of the seat belt to be detachably attached
A woven fabric including an overlapping portion that is folded back by inserting through the respective hole portions formed in the anchor plate and the buckle, and that is overlapped at least in three layers,
A circuit board provided on the buckle,
A wire harness that is connected to the circuit board and transmits at least an electric signal to and from the vehicle body side,
A seat belt buckle device comprising:
The wire harness is supported by the woven fabric via a belt-shaped member, and is routed along the lateral direction of the woven fabric,
The belt-shaped member has an adhesive surface on at least a part of one side surface, and a winding portion wound around the wire harness and the belt-shaped members are bonded to each other by the adhesive surface continuously from the winding portion. The laminating part, and an extending part extending from one end of the strip-shaped member forming the laminating part to the side opposite to the winding part and exposing a part of the adhesive surface on the surface. A buckle device for a seat belt, wherein a projecting portion is attached to the woven cloth by the adhesive surface, and the pasting portion and the extending portion are attached to the woven cloth by sewing. The overlapping portion has a folding portion that is folded inward, a back surface portion that is folded back from the folding portion and is continuous, and a front surface portion that is folded back from the back surface portion and continuous,
The bonded portion and the extended portion of the strip-shaped member are inserted between the folded portion and the front surface portion of the overlapping portion of the woven fabric or between the folded portion and the back surface portion. The buckle device for a seat belt according to claim 1, which is sewn with. The overlapping portion has a folding portion that is folded inward, a back surface portion that is folded back from the folding portion and is continuous, and a front surface portion that is folded back from the back surface portion and continuous,
2. The stitching part and the extension part of the strip-shaped member are sewn in a state of being arranged on an outer surface of the front surface portion or the back surface portion of the overlapping portion of the woven fabric. Seat belt buckle device. The said sewing attaches the said bonding part and the said extension part of the said strip|belt-shaped member to the said woven cloth, and joins the overlapping part of the said woven cloth mutually, The said any one of Claims 1-3. Buckle device for seat belt. The seat belt buckle according to any one of claims 1 to 4, wherein the woven cloth is provided with a harness insertion hole through which the wire harness is passed from one end side in the width direction of the woven cloth to the other end side. apparatus. The seat belt buckle device according to claim 1, wherein the belt-shaped member is made of a woven fabric. Anchor plate that can be attached to the vehicle body side,
With a buckle that allows the tongue of the seat belt to be detachably attached
A woven fabric including an overlapping portion that is folded back by inserting through the respective hole portions formed in the anchor plate and the buckle, and that is overlapped at least in three layers,
A circuit board provided on the buckle,
A wire harness that is connected to the circuit board and transmits at least an electric signal to and from the vehicle body side,
A method for manufacturing a buckle device for a seat belt, comprising:
A step of using a strip-shaped member having an adhesive surface on at least a part of one side surface,
While winding the strip-shaped member around the wire harness, a step of bonding the strip-shaped members to each other in a state in which the positions of one end and the other end of the strip-shaped member are shifted to expose a part of the adhesive surface,
Attaching the adhesive surface to a predetermined position of the woven fabric and temporarily fixing the strip-shaped member to the woven fabric;
A step of sewing the strip-shaped member on the woven fabric,
A manufacturing method of a buckle device for a seat belt, wherein the wire harness is supported by the woven cloth via the belt-shaped member and is routed along a lateral direction of the woven cloth. The buckling device for a seat belt according to claim 7, wherein, in the sewing step, the bonding portion and the extending portion of the strip-shaped member are attached to the woven fabric and the overlapping portions of the woven fabric are coupled to each other. Production method.

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