JP2003291774A - Dent tool for hook portion of seatbelt - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide advantages for realizing an efficient wedge function, simple detachment to a guide support piece, and simple and inexpensive manufacturing. <P>SOLUTION: This dent tool for a hook portion has an elastic base provided with a plurality of lock protrusions on an outer wall. This tool has an elastic deformation function that a top wall and a bottom wall of the elastic base are deformed inwardly against an elastic force of a material itself and passed through an abut face of the lock protrusions when the lock protrusions slide in contact with a rectangular guide long hole edge face of the guide support piece of a vehicle; and an elastic return deformation function for pushing a tapered or semi-arc lock face to an edge face of the rectangular guide long hole where the dent tool is inserted to a required position of the rectangular guide long hole and performs a wedge function against the seatbelt. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detent device for a seat belt buckling portion.

[0002]

2. Description of the Related Art Since a vehicle seat belt restrains a driver's body, many people point out the following problems if the seat belt pulled out completely fits the body. (1) I do not like it because it comes into contact with the skin. (2) Conspicuous parts of clothes are wrinkled or scratched. (3) If the driving time is long, the seat belt contact pressure or the seat belt feels pressure.

Therefore, in order to eliminate such a point, the embodiment disclosed in Japanese Patent Laid-Open No. 2002-59807 has heretofore been provided with a "<" shape in the opening portion of the seatbelt accommodating portion (guide duct). It is proposed to insert a seat belt stopper. However, this one embodiment has a problem in that the structure is complicated and therefore the manufacturing is troublesome.

An embodiment disclosed in Japanese Utility Model Registration No. 3073959 is fixed to a portion just before an insertion hole of a guide support piece (in the term of the publication, a seat belt hanging tool) provided on an upper portion of an inner wall of a vehicle. We have proposed a seat belt retrograde prevention device. This retrograde blocker is the same in that it is intended to block the return of the buckling portion of the seat belt as in the present invention.

However, in this retrograde prevention tool, the central portion of one plate-like plate is folded back to form a first half body on the front surface side and a second half body on the back surface side connected to the front half body. The opposite ends of the half body are provided with detachable tape-shaped engaging portions, but there is a problem that the upper end surface of the retrograde stopper slides when it hits the guide support piece with some bounce. . Therefore, in order to prevent the slip-back of the anti-reverse device, there is a demand for improvement or devising such as adding anti-slip means to the anti-reverse device. The present invention has emerged against the background of the prior art in such a demand.

[0006]

SUMMARY OF THE INVENTION A first object of the present invention is to provide a rectangular shape of a guide support piece provided on an upper part of an inner wall of a vehicle with a length of a crossing portion of a seat belt being allowed. It is an object of the present invention to propose a return blocking device that can eliminate contact pressure of a seat belt or a feeling of pressure from a seat belt simply by inserting a tip end portion into a long guide hole. A second object of the present invention is to be able to sufficiently exert the wedge function of the return blocking device. The third object of the present invention is to
When an impact force of a certain amount or more is applied to the straddle portion of the seat belt, at least the upper wall portion of the elastic base portion is displaced inward via the locking projection, and the wedge function of the return blocking device immediately stops working. There is a phenomenon (a phenomenon in which the return stopper returns or comes off). A fourth object of the present invention is that the guide support piece can be easily attached and detached. A fifth object of the present invention is to simplify the structure and to manufacture it easily and inexpensively. A sixth object of the present invention is that the locking projections provided on the upper wall portion and / or the lower wall portion of the elastic base portion are not easily damaged. Therefore, the return stopper is excellent in durability.

[0007]

A return stopper for a seatbelt hanging portion of a seat belt according to the present invention is fixed to a cylindrical elastic base portion 15 and an upper wall portion 20 and / or a lower wall portion 21 of the elastic base portion 15. And a synthetic resin base plate 24 having a locking projection 25, and a return restrainer X for a seat belt buckling portion, wherein the upper wall portion 20 and the lower wall portion 21 of the elastic base 15 are: When the contact surface 25a of the locking projection 25 is slidably contacted with the edge surface of the rectangular guide elongated hole 3 of the guide support piece 2 provided on the upper portion of the inner wall of the vehicle, it is displaced inward against the elastic force of the material itself. Then, the elastic deformation function of passing the contact surface 25a of the locking projection 25, the return blocking tool X inserted into the required position of the rectangular guide elongated hole 3, and the wedge function for the seat belt 1 are exhibited. Where the contact surface 25a has passed the locking surface 2 of the locking projection 25 And having to have an elastic restoring deformation function of pressing the edge face of the rectangular guide slots 3 b.

Further, in the return preventing device for the seatbelt hanging portion of the present invention, the small hole 30 through which the air in the hollow portion 16C flows in and out.
Bag-shaped elastic base portion 15C having the
Is fixed to the upper wall portion 20 or / and the lower wall portion 21 of the
A return preventing tool (X3) for a seat belt hanging portion, which comprises a synthetic resin base plate (24) having a locking projection (25), wherein the elastic base portion (15C) has an upper wall portion (20) and a lower wall portion (21).
When the abutting surface 25a of the locking projection 25 is brought into sliding contact with the edge surface of the rectangular guide elongated hole 3 of the guide support piece 2 provided on the upper part of the inner wall of the vehicle, the inner side is resisted against the elastic force of the material itself. The elastic deformation function of moving the contact projection 25a through the contact surface 25a of the locking projection 25, the return blocking tool X3 inserted into a required position of the rectangular guide slot 3, and the wedge function for the seat belt 1. The locking projection 2 that the contact surface 25a has passed through when it is exerted
5 has an elastic return deformation function of pressing the locking surface 25b of No. 5 against the edge surface of the rectangular guide elongated hole 3.

In addition, the detent device for the seatbelt hooking portion of the present invention has a kneeling portion having an elastic base portion 15A provided with a locking projection 25A on the outer wall surface of the upper wall portion 20A and / or the lower wall portion 21A. In the return stopper X1, the upper wall portion 20A and the lower wall portion 21A of the elastic base portion 15A have a rectangular shape of the guide support piece 2 in which the contact surface 25a of the locking projection 25A is provided on the upper portion of the inner wall of the vehicle. When slidably contacting the edge surface of the shape guide elongated hole 3, the elastic deformation function of displacing inward against the elastic force of the material itself to pass the contact surface 25a of the locking projection 25A, and the return blocking tool X1 are rectangular. The engaging surface 25b of the engaging projection 25A, through which the contact surface 25a has passed, is inserted into a required position of the shape guide elongated hole 3 and exhibits a wedge function with respect to the seat belt 1. With elastic return deformation function to press against the edge surface of And wherein the Rukoto.

Further, the detent device for the seat belt buckling portion of the present invention is provided with the upper wall portion 20B and / or the lower wall portion 21.
A back stop device X2 for a hanging part having an elastic base portion 15B provided with a plurality of wavy locking projections 25B on the outer wall surface of B, wherein the upper wall portion 20B and the lower wall portion 21B of the elastic base portion 15B are: The contact surface 25a of the locking projection 25B has a rectangular guide elongated hole 3 of the guide support piece 2 provided on the upper portion of the inner wall of the vehicle.
When it comes into sliding contact with the edge surface, the elastic deformation function of displacing inward against the elastic force of the material itself and passing through the contact surface 25a of the locking projection 25B, and the return blocking tool X2 are provided in the rectangular guide slot 3. Of the corrugated locking projection 25B through which the abutment surface 25a has passed, the locking surface 25b of the rectangular guide elongated hole 3 is inserted to the edge surface of the rectangular guide elongated hole 3. It has an elastic return deformation function of pressing.

[0011]

1 to 5 are explanatory views showing a first embodiment of the present invention. 1 and 2 are schematic explanatory views showing an environment for carrying out the invention. First, 1 is a seat belt, and this seat belt 1 has a predetermined width and length.
Reference numeral 2 denotes a guide support piece having a rectangular guide elongated hole 3 for guiding the seat belt 1. The guide support piece 2 is suspended above a vehicle inner wall (for example, an upper portion of the backrest) via a fixture 4. There is. Reference numeral 5 denotes a buckle-shaped engaging piece movably provided on the lower end portion of the seat belt 1, and a tip portion 6 having an engaging hole of the engaging piece 5 has a female engaging member provided at a predetermined position beside the seat. Disengage from fitting 7. Reference numeral 8 denotes a seatbelt storage portion which is provided on the inner wall of the vehicle and which stores the other end side of the seatbelt (in FIG. 1, the upper side bent through the guide support piece 2). A winding device (not shown) is built in the storage portion 8.

Next, X is a wedge-type detent device for the seat belt buckle. This return stop X is
It is a so-called wedge-shaped stopper piece that exhibits a wedge function by inserting the tip end portion into the rectangular guide elongated hole 3 of the guide support piece 2 described above. Here, a usage mode of the return blocking tool X will be described with reference to FIG. It is assumed that the driver D now sits on the seat 10 and leans on the backrest 11 to pull the seat belt 1. Driver D at this time
According to the rule, generally, the tip end portion 6 of the engagement piece 5 is inserted into the female engagement tool 7 on the side of the seat, but if it is left as it is, the "trapping portion 1a" of the seat belt 1 beyond the guide support piece 2 is inserted. The inner wall surface of “” is the shoulder, chest, abdomen of Driver D,
Fit (contact) exactly on the side. In such a situation, the driver D receives a contact pressure of the seat belt 1 or a feeling of pressure from the seat belt 1. Therefore, in order to eliminate the contact pressure, the seat belt 1 is pulled a little and there is a margin in the length of the crossing portion 1a. To have. So driver D
Is inserted into the rectangular guide long hole 3 of the guide support piece 2 with the tip of the return blocker X having a margin in the length of the crossing portion 1a. Then, the wide outer wall surface of the return blocking tool X elastically presses against the upper and lower inner surfaces or edge surfaces of the rectangular guide elongated hole 3 to prevent the crossing portion 1a from returning.

Therefore, the construction of the first embodiment of the wedge-shaped return preventing tool X will be described with reference to FIGS. FIG. 3 is a perspective view of the return blocking tool X. With reference to FIG. 3, reference numeral 15 is a wedge-shaped elastic base made of rubber.
The inside of is a hollow state (hollow portion) 16 through which air flows in and out. The hollow portion 16 of the elastic base portion 15 has left and right side walls opened in a quadrilateral shape. Therefore, the shape of the elastic base portion 15 is a rectangular tubular body. Moreover, one side of the quadrilateral of the opening (side on the tip end side) is shorter than the other side (side on the rear end side).

Reference numeral 17 denotes a tip portion (insertion side) of the elastic base portion 15, and reference numeral 18 denotes a rear end portion (pushing side) of the elastic base portion 15. The height h1 of the tip 17 of the elastic base 15 is
It is shorter than the h2 of the rear end portion 18. Therefore, in this embodiment, as shown in FIGS. 4 and 5, the upper wall portion 20 and the lower wall portion 21 of the elastic base portion 15 are inclined or slidable. In other words, referring to FIG. 3, for example, the upper wall portion 20 of the elastic base portion 15 has a climbing slope shape from the leading end portion 17 on the insertion side to the rear end portion 18 on the pushing side.

By the way, the return blocking member X includes the guide supporting piece 2
When inserted into the rectangular guide elongated hole 3 of the rectangular guide long hole 3, the outer wall surfaces of the upper wall portion 20 and the lower wall portion 21 of the elastic base portion 15 prevent the return of the room-placing portion 1a having a margin. Since the upper and lower inner walls of the hole 3 are pressed against each other, the height h3 of the central portion of the elastic base portion 15 is preferably set to be slightly longer (higher) than the corresponding inner diameter of the rectangular guide elongated hole 3. Further, as shown in FIG. 3, the distal end portion 17 of the elastic base portion 15 is
Has a narrow width, and the upper wall portion 20 and the lower wall portion 21 gradually become wider from the front end portion 17 to the rear end portion 18.

On the outer wall surfaces of the upper wall portion 20 and the lower wall portion 21, trapezoidal recesses 22 and 22 are formed from a portion near the tip to the vicinity of the lower end, respectively.
A pair of upper and lower anti-slip plates 23, 23, which prevent the return blocker X from slipping or coming off easily when the return block X is inserted into the guide support piece 2, are fixedly fitted to the reference numerals 2, 22, respectively.

In this embodiment, however, the slip prevention plate 23
Is made of a hard synthetic resin material, and is composed of a trapezoidal base plate 24 and a plurality of locking projections 25 projecting from the upper surface of the base plate 24 at predetermined intervals. When the base plate 24 is fixedly fitted in the recess 22, it becomes flush with the outer wall surface. Further, the locking protrusion 25 is provided in FIG.
As shown in, the taper-shaped locking surface 25b facing in the direction opposite to the inclination of the outer wall surface of the upper wall portion 20 and / or the lower wall portion 21 (the direction of the tip of the elastic base portion 15), and the contact surface 25b. And an abutting surface 25a capable of abutting on the upper and lower edge surfaces of the rectangular guide slot 3 while intersecting with each other at an acute angle. The locking projections 25 are arranged on the outer wall surface of the elastic base portion 15 in an aligned state with a required space. In this embodiment, as shown in FIG. 3, two base plates 24 are arranged side by side on the tip side, three center lines are arranged side by side, and five pieces are arranged on the rear end side. The number of the locking projections 25 increases from the front end side of the plate 24 to the rear end side thereof. This is to fully exert the wedge function.

Next, 26 is a projection 26 for the connecting means 27 which is provided at the center of the outer wall surface of the rear end of the elastic base portion 15.
The protrusion 26 has a mounting hole, and the protrusion 26 has a connecting means 2 such as a key chain, a connecting ring, an elastic rubber band, or a string.
7 is properly attached.

Since the use mode of the return blocking tool X has already been described, the operation of the return blocking tool X having the above-described configuration will be described here. As shown in the enlarged portion of the main part of FIG. 2 and in FIG. 6, the return blocking tool X has a tip portion 17 of the return blocking tool X with the guide support piece 2 in a state where the length of the crossing portion 1a has a margin. Insert into the rectangular guide elongated hole 3 of. At this time, the upper wall portion 20 and the lower wall portion 21 of the elastic base portion 15 have the respective locking protrusions 25.
When the contact surface 25a of the sliding contact with the upper and lower edge surfaces of the rectangular guide elongated hole 3 (the lower wall portion 21 is indirect via the seat belt),
Displaced inward against the elastic force of the material itself, and each locking protrusion 2
5, the elastic deformation function of passing the abutment surface 25a of No. 5 and the return blocking tool X are inserted to a required position of the rectangular guide elongated hole 3, and the wedge function for the seat belt 1 is exerted. When the restoring force of the lower wall portion 20 and the lower wall portion 21 is surely exerted, the locking surfaces 25b of the locking projections 25 through which the contact surface 25a passes are pressed against the upper and lower edge surfaces of the rectangular guide elongated hole 3. , And an elastic return deformation function that secures a temporary engagement state between them.

Therefore, the wide outer wall surfaces of the return blocking device X and the respective locking projections 25 elastically press against the upper and lower edge surfaces (including the inner surface) of the rectangular guide elongated hole 3, so that the crossing portion 1a of the crossing portion 1a is pressed. Surely prevent the return. On the other hand, when an impact force of a certain amount or more is applied to the straddling portion 1a of the seat belt 1, at least the upper wall portion 20 of the elastic base portion 15 is displaced inwardly via the locking protrusion 25, and the return stopper X of the return stopper X is moved. The wedge function does not work immediately (the phenomenon that the return stopper returns or comes off).

[0021]

EXAMPLE The basic construction of the return blocking device X of the first example is as follows.
A rectangular tubular elastic base 15 and a pair of upper and lower synthetic resin base plates 24 fixed to the upper wall 20 and the lower wall 21 of the elastic base 15 and having a plurality of locking protrusions.
However, the design may be changed to, for example, the return blocking tool X1 shown in FIGS.
As an example, the same reference numerals as those in the first example are given).

The main difference between the second embodiment and the first embodiment is that the synthetic resin base plate 24 is not used. That is, the elastic base portions 15A are all formed of the same material (for example, rubber), and the upper wall portion 2 of the elastic base portion 15A is formed.
0A and the lower wall portion 21A are provided with a plurality of locking projections 25A directly. Although the second embodiment has a problem that the locking projections 25 are easily damaged when used for a long time,
The same object as that of the first embodiment of the present invention can be achieved.

Further, the design of the return blocking device X of the first embodiment may be changed to, for example, the return blocking device X2 of FIGS. 9 and 10 (this will be referred to as a third embodiment for convenience of description, 1
The same reference numerals as in the embodiment are attached).

The difference between the third embodiment and the first embodiment is that the base plate 2 made of synthetic resin is the same as the second embodiment.
4 is not used, and the plurality of locking protrusions 25B have a continuous wavy shape like a wave that hits. That is, the elastic base portions 15B are all made of the same material (for example, rubber).
And a plurality of locking projections 25B are provided directly on the upper wall portion 20B and the lower wall portion 21B of the elastic base portion 15B.
Moreover, the shape of these continuous wavy locking projections 25B is different from that of the first and second embodiments, and each cross section is slightly arcuate (see FIG. 8), and one wavy The width of the locking projection 25B gradually increases from the front end portion 17 side to the rear end portion side of the elastic base portion 15B.
With this configuration, the same purpose as that of the first embodiment of the present invention can be achieved. The semi-arcuate portion on the tip end side of the wavy locking projection 25B is the contact surface 25a, while
The semi-arcuate portion on the rear end side is the locking surface 25b.

Therefore, the locking projection 25 of the base plate 2 of the first embodiment may be formed in a continuous wave shape like the locking projection 25B of the third embodiment, although not particularly shown. Further, as shown in FIG. 11, regarding the form of the elastic base portions (15A to 15B) of the return blocking device (X1 to X2), if it has the elastic deformation function and the elastic return deformation function described above, the return blocking device may be used. As shown in tool X3,
The elastic base portion 15C may be formed into a bag shape having one or a plurality of small holes 30 through which the air in the hollow portion 16C flows (this is referred to as the fourth embodiment and the first embodiment for convenience of description). Like numbers are attached).

It is not necessary to provide the plurality of locking projections 25 of the synthetic resin base plate 24 on both the upper wall portion 20 and the lower wall portion 21 of the elastic base portion 15, but the upper wall portion 20 or the lower wall portion. It may be provided in either one of 21. In this respect, the same applies to the plurality of locking projections 25A and 25B after the second embodiment.

[0027]

As is apparent from the above description, the present invention has the following actions and effects. (1) With the length of the crossing portion of the seat belt being allowed, the seat belt can be simply inserted into the rectangular guide elongated hole of the guide supporting piece provided on the upper portion of the inner wall of the vehicle. It is possible to propose a wedge-shaped return prevention device that can eliminate the contact pressure or the feeling of pressure from the seat belt. (2) In each of the embodiments, the wedge function of the return blocking device can be sufficiently exerted. (3) When an impact force of a certain amount or more is applied to the straddling portion 1a of the seat belt 1, the elastic base portion 15 has the locking projection 2
At least its upper wall portion 20 is displaced inwardly through 5,
The wedge function of the return stop X does not work immediately (a phenomenon in which the return stop returns or comes off). (4) The guide support piece can be easily attached and detached. (5) Since the structure is simple, it can be manufactured easily and inexpensively. (6) In the inventions of claims 1 and 3, the locking projections provided on the upper wall portion and / or the lower wall portion of the elastic base portion are not easily damaged. Therefore, it has excellent durability. (7) The return blocking device according to the fourth aspect can be connected to the guide support piece or the seat belt via the connecting means.

[Brief description of drawings]

1 to 6 are explanatory views showing a first embodiment of the present invention. 7 and 8 are explanatory views showing a second embodiment of the present invention. Figure 9
10 and 10 are explanatory views showing a third embodiment of the present invention. Figure 1
FIG. 1 is an explanatory view showing a fourth embodiment of the present invention.

FIG. 1 is a schematic explanatory view of a place where the present invention is used.

FIG. 2 is a schematic explanatory view for explaining the purpose of the present invention.

FIG. 3 is an explanatory view from a perspective.

FIG. 4 is an explanatory diagram from the right side.

FIG. 5 is a schematic cross-sectional explanatory view.

FIG. 6 is an explanatory diagram of an operation.

FIG. 7 is a plan view of the second embodiment.

FIG. 8 is a schematic cross-sectional explanatory view.

FIG. 9 is a plan view of the third embodiment.

FIG. 10 is a schematic sectional explanatory view.

FIG. 11 is a perspective view of the fourth embodiment.

[Explanation of symbols]

1 ... Seat belt, 1a ... Bracketing part, 2 ...
Guide support piece, 3 ... Guide long hole, 5 ... Engagement piece, 7 ... Female engagement tool, 8 ... Storage section, X, X1, X2, X3 ... Return blocking tool,
15, 15A, 15B, 15C ... Elastic base, 16, 16
C ... Hollow part, 17 ... Tip part (insertion side), 18 ... Rear end part (pushing side), 20, 20A, 20B ... Upper wall part, 2
1, 21A, 21B ... Lower wall part, 22 ... Recess, 23 ... Anti-slip plate, 24 ... Base plate, 25, 25A, 25B ... Locking protrusion, 25a ... Abutting surface, 25b ... Locking surface, 26 ... Protrusion,
27 ... Connection means, 30 ... Small hole.

Claims (8)

[Claims] 1. A cylindrical elastic base 15 and the elastic base 1.
5 is a synthetic resin base plate 24 having locking protrusions 25 and fixed to the upper wall portion 20 and / or the lower wall portion 5 of the seat belt, and is a return stopper X for a buckling portion of a seat belt. The upper wall portion 20 and the lower wall portion 21 of the elastic base portion 15 are
When the contact surface 25a of the locking projection 25 is slidably contacted with the edge surface of the rectangular guide elongated hole 3 of the guide support piece 2 provided on the upper portion of the inner wall of the vehicle, it is displaced inward against the elastic force of the material itself. Then, the elastic deformation function of passing the contact surface 25a of the locking projection 25, the return blocking tool X inserted into the required position of the rectangular guide elongated hole 3, and the wedge function for the seat belt 1 are exhibited. In this case, for the seat belt buckle portion, the elastic projection deformation function of pressing the locking surface 25b of the locking projection 25 through which the contact surface 25a has passed against the edge surface of the rectangular guide elongated hole 3 is provided. Return stop. 2. A plurality of the locking projections 25 are arranged in an array with a required interval from the front end side to the rear end side of the elastic base 15 and are opposite to the slide-shaped outer wall surface. A detent device for a seat belt buckling portion, which is a taper surface inclined in a direction. 3. A small hole 30 through which air in the hollow portion 16C flows in and out.
Bag-shaped elastic base portion 15C having the
Is fixed to the upper wall portion 20 or / and the lower wall portion 21 of the
A return preventing tool (X3) for a seat belt hanging portion, which comprises a synthetic resin base plate (24) having a locking projection (25), wherein the elastic base portion (15C) has an upper wall portion (20) and a lower wall portion (21).
When the abutting surface 25a of the locking projection 25 is brought into sliding contact with the edge surface of the rectangular guide elongated hole 3 of the guide support piece 2 provided on the upper part of the inner wall of the vehicle, the inner side is resisted against the elastic force of the material itself. The elastic deformation function of moving the contact projection 25a through the contact surface 25a of the locking projection 25, the return blocking tool X3 inserted into a required position of the rectangular guide slot 3, and the wedge function for the seat belt 1. The locking projection 2 that the contact surface 25a has passed through when it is exerted
5. An elastic return-deformation function of pressing the locking surface 25b of No. 5 against the edge surface of the rectangular guide elongated hole 3 to prevent the seat belt from buckling. 4. The detent device for a seat belt buckling portion according to claim 3, wherein a projection 26 for connecting means is provided at a rear end portion of the elastic base portion 15C. . 5. A return blocking tool X1 for a hanging part, which has an elastic base portion 15A provided with a locking projection 25A on the outer wall surface of the upper wall portion 20A and / or the lower wall portion 21A, wherein the elastic base portion 15A The upper wall portion 20A and the lower wall portion 21A are made of a material when the contact surface 25a of the locking projection 25A is slidably contacted with the edge surface of the rectangular guide elongated hole 3 of the guide support piece 2 provided on the upper portion of the inner wall of the vehicle. The elastic deformation function of displacing inward against the elastic force of itself to allow it to pass through the contact surface 25a of the locking projection 25A, and the return blocking tool X1 are inserted to a required position of the rectangular guide elongated hole 3, and In the place where the wedge function for the seat belt 1 is exerted, it has an elastic return deformation function of pressing the locking surface 25b of the locking projection 25A passed by the contact surface 25a against the edge surface of the rectangular guide elongated hole 3. Characteristic of the seat belt Stop. 6. The engagement surface 25b of the engagement projection 25A of the elastic base portion 15A faces in a direction opposite to the inclination of the slide-shaped outer wall surface of the upper wall portion 20A or the lower wall portion 21A. A detent device for seat belt buckling, characterized by a taper. 7. A return blocking device X2 for a hanging part, which has an elastic base portion 15B provided with a plurality of wavy locking projections 25B on the outer wall surface of the upper wall portion 20B and / or the lower wall portion 21B, The upper wall portion 20B and the lower wall portion 21 of the elastic base portion 15B
B is resistant to the elastic force of the material itself when the contact surface 25a of the locking projection 25B comes into sliding contact with the edge surface of the rectangular guide elongated hole 3 of the guide support piece 2 provided on the upper portion of the inner wall of the vehicle. The elastic deformation function of displacing inward to pass the contact surface 25a of the locking projection 25B, the return blocking tool X2 inserted into a required position of the rectangular guide elongated hole 3, and the wedge function of the seat belt 1 are provided. When it is exerted, it has an elastic return deformation function of pressing the locking surface 25b of the wavy locking projection 25B, which the contact surface 25a has passed, to the edge surface of the rectangular guide elongated hole 3, and a seat belt girth. Return stopper for hanging part. 8. The corrugated locking projection 25B according to claim 7.
Is formed continuously like a wave that hits from the front end side to the rear end side of the elastic base portion 15B, and is a detent device for a buckling portion of a seat belt.