WO2012105762A2

WO2012105762A2 - Belt-locking tongue and seat belt comprising same

Info

Publication number: WO2012105762A2
Application number: PCT/KR2012/000460
Authority: WO
Inventors: 공장춘; 김도완
Original assignee: 주식회사 삼송
Priority date: 2011-02-01
Filing date: 2012-01-19
Publication date: 2012-08-09
Also published as: KR101235112B1; WO2012105762A3; KR20120088992A

Abstract

The present invention relates to a belt locking tongue which has a simple structure so as to enable the easy fixation of webbing and easy processing and assembly, and to fundamentally prevent the webbing from being cut. The present invention also relates to a seat belt comprising the belt-locking tongue.

Description

Belt locking tongue and seat belt having same

The present invention is a seat belt for restraining the shoulder and waist of the occupant moving forward by the driving inertia at the time of an accident or sudden stop, the shoulder belt for restraining the occupant and the lap belt for restraining the waist stably It relates to a belt locking tongue that can be fixed and a seat belt having the same.

In general, the vehicle is provided with a seat belt in the seat in order to ensure the driving safety of the passenger, such as the driver. That is, the seat belt installed in the vehicle is configured to prevent the occupant from jumping out of the vehicle body while restraining the occupant's body in order to prevent the secondary collision and reduce the impact. As the most common form of such a seat belt, a three-point seat belt in which a shoulder belt for shoulder restraint and a wrap belt for waist restraint is mainly applied.

As shown in FIG. 1, the seat belt 1 generally includes a webbing 10 having a belt shape that fixes a passenger, a retractor 20 on which the webbing 10 is wound, and the webbing 10. It consists of a belt tongue 30 coupled to the drawn end of the belt tongue 30, the belt tongue 30 is detachably inserted.

The webbing 10 prevents the occupant's body from tumbling forward or deviating from the seat due to driving inertia when the vehicle is suddenly stopped or overturned due to a collision accident, and the buckle 40 is a webbing 10. It is possible to fix the belt tongue (30) from which the pulled out to the vehicle body.

The retractor 20 is a device for winding the webbing 10. The retractor 20 allows the webbing 10 to be pulled out when the occupant wears the webbing 10, but has a large force on the webbing 10 due to a vehicle collision. When the hook is taken out abruptly, the drawing of the webbing 10 is suppressed, thereby preventing the occupant from leaning forward of the seat while wearing the webbing 10.

The seat belt 1 configured as described above is in a state where the withdrawal of the webbing 10 is suppressed at the time of an accident occurrence or sudden stop by the retractor 20. However, the webbing 10 is inserted into the webbing insertion hole 31 of the belt tongue 30, which is caught at the end branched to the shoulder belt 11 and the wrap belt 12 of the webbing 10, so that the shoulder and According to the relative movement of the waist, the shoulder belt 11 or the wrap belt 12 is drawn in and out based on the belt tongue 30. The withdrawal movement of the webbing 10 does not secure the occupant to the seat so that the occupant becomes unstable and does not secure the safety of the occupant.

In order to prevent relative pull-out movement in both directions based on the belt tongue 30 of the webbing 10, a webbing 10 is installed on the belt tongue 30 after the cinch bar (not shown) is installed. Adding a locking structure. The locking method of the belt tongue 30 can be divided into a disposable locking method and an infinite locking method according to the continuous use, and when the pulley is pulled by the bidirectional load of the webbing 10 by a sudden stop, it is possible to fix the webbing 10. It can be divided into slide locking method and rotary locking method according to the movement of the Chiba.

Disposable locking method is that the fixed protrusion is broken by the shear force by the bi-directional pull of the webbing (10) while fixing the movement of the new tooth bar through the fixing projections, whether the movement of the new tooth bar or slide, the new tooth bar is It moves to fix the webbing 10. Therefore, the disposable locking method has a disadvantage in that the belt tongue 30 must be continuously replaced because the fixing protrusion is broken so that the lifetime of the disposable protrusion is used only once.

In addition, the belt tongue 30 according to the related art has a complicated structure of both the slide locking method and the rotation locking method according to the movement of the new tooth bar, which makes it difficult to process and assemble the respective components constituting the belt tongue 30. There is a problem that it is not easy to replace and repair.

In particular, the belt tongue 30 according to the prior art is a simple cylindrical shape of the Shin Chiba or a shape such as protruding like a cone (cone) on the radial side of the Shin Chiba, etc., one side of the webbing 10 in line or point contact Compression is fixed. The webbing 10 is woven into a strip of about 50 mm in width and about 1.2 mm in thickness of synthetic fibers such as nylon and polyester, and the characteristics such as strength and elongation are determined by heat treatment. If the webbing 10 is momentarily press-fixed by the line or point contact of the new tooth bar, there is a problem that the webbing 10 is easily cut.

As described above, the belt tongue and the seat belt having the same according to the related art have a problem in that the webbing is easily cut because the webbing is momentarily pressed and fixed by line contact, and the structure thereof is complicated, so that the assembly and replacement and repair are inconvenient. have.

An object of the present invention devised to solve the above problems, the belt locking tongue that can easily prevent the fixing of the webbing, as well as easy to fix the webbing in a simple configuration, can prevent the cutting of the webbing and the same It is to provide a seat belt provided.

Other objects, specific advantages and novel features of the invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings.

In order to achieve the above object, the belt locking tongue according to the present invention is a buckle fastening hole fastened to the buckle is formed on the front end, a tongue plate formed with a webbing insertion hole is formed so that the webbing is inserted, the tongue plate is coupled to one side insert A long hole is formed through the long hole so that the webbing is inserted together with the webbing insertion hole of the tongue plate, a tongue body having an opening formed in communication with the long hole at the lower side of the tongue plate, and a pair of slides respectively penetrated at both ends of the opening of the tongue body. Both ends are inserted into a ball and slide curve is moved, and a new tooth axis having a transverse curve in cross-sectional trapezoidal shape is inserted into the opening of the tongue so that the new tooth axis is inserted into a shaft hole formed through the longitudinal direction. One side of the webbing inserted and wound into the outer circumferential surface is in contact with the new axis A slide curve is moved along the opening, and when the load is applied to the webbing in both directions, a new tooth bar is curved so as to press fix one surface of the webbing and the tongue is installed on the tongue, and the shoe is fixed for pressing the webbing. It includes a spring for returning the curved movement of the Chiba to its original position.

In addition, the shinchiba is characterized in that the surface for pressing and fixing one surface of the webbing has a planar shape.

The spring is a convex leaf spring and is fixed to an inner surface of the opening of the tongue to elastically support the inner circumferential surface of the shin tooth bar.

In addition, the new tooth shaft has both ends penetrating through the slide hole and protrudes on the outer surfaces of both side ends of the opening of the tongue, and the spring is a pair of torsional coil springs. It is fixed to each side, characterized in that for supporting both ends of the new tooth shaft elastically.

In addition, it characterized in that it further comprises a pair of covers for opening and closing the outer surface of both sides of the opening of the tongue body, respectively.

On the other hand, the seat belt provided with a belt locking tongue according to the present invention, the belt-shaped webbing to secure the occupant, the retractor is wound around the webbing, the belt locking tongue coupled to the drawn end of the webbing, In the seat belt comprising a buckle in which the belt locking tongue is detachably inserted, the belt locking tongue is a tongue plate with a webbing insertion hole formed so that the buckle fastening hole fastened to the buckle is formed at the tip, and the webbing is inserted. And, the tongue plate is inserted into one side is coupled to the long hole through which the webbing is inserted into the webbing insertion hole of the tongue plate is formed through the tongue, the tongue body formed with an opening to communicate with the long hole in the lower side of the tongue, Both ends are inserted into a pair of slide holes respectively penetrating through both ends of the opening to move the slide curve, One side of the webbing inserted into the opening of the tongue body is inserted into the opening of the tongue so that the new tooth shaft is inserted into the shaft hole penetrating along the longitudinal direction and the axial hole penetrating along the longitudinal direction, and one surface of the webbing inserted into the long hole is in contact with the outer peripheral surface. While the sliding curve moves along the opening along with the new tooth axis, and when the load is applied to the webbing in both directions, the new tooth bar is curved and fixed to press and fix one surface of the webbing, and is installed on the tongue. It includes a spring for returning the curved movement of the new tooth bar for the compression fixing to the original position.

Belt locking tongue and seat belt having the same according to the present invention, webbing can be easily inserted and fixed to the inner and outer surfaces of the opening of the tongue in the state that the tongue plate and the tongue body is coupled, webbing in a simple configuration Not only facilitate the fastening but also easy to process and assemble.

Furthermore, since the new tooth shaft and the new tooth bar are curved, the slide is smoothly operated, and the contact portion for pressing and fixing the webbing of the new tooth bar is flat, so that it is possible to prevent the cutting of the webbing by contacting with a large area even in the sudden pressing fixing of the webbing. .

1 is a perspective view showing a general seat belt,

2 is a perspective view showing a first embodiment of the belt locking tongue according to the present invention;

3 is an exploded perspective view of the embodiment of FIG.

Figure 4 is a perspective view showing a second embodiment of the belt locking tongue according to the present invention,

5 is an exploded perspective view of the embodiment of FIG. 4,

6 is a perspective view showing a state of the embodiment of FIG. 4 as viewed from below;

7 is a side view of the embodiment of FIG. 4,

8 is a state diagram showing a state pulled by the bidirectional load of the webbing in the embodiment of FIG.

9 is a cross-sectional view taken along line AA ′ of the embodiment of FIG. 4;

10 is a state diagram showing a state pulled by the bidirectional load of the webbing in the embodiment of FIG.

11 is a perspective view showing a third embodiment of the belt locking tongue according to the present invention.

A buckle fastening hole fastened to the buckle is formed at the tip, and a tongue plate having a webbing insertion hole formed to insert the webbing;

Tongue body is inserted through the tongue plate is coupled to one side through the long hole so that the webbing is inserted with the webbing insertion hole of the tongue plate, the tongue body formed in the opening to communicate with the long hole in the lower side,

Both ends are inserted into a pair of slide holes respectively penetrating through both ends of the opening of the tongue body to move the slide curve, and a new tooth axis having a transverse curve in a cross-sectional trapezoidal shape;

A slide curve is inserted along the opening along with the new tooth shaft while one surface of the webbing inserted into the opening of the tongue is inserted into the opening of the tongue so that the new tooth shaft is inserted into the shaft hole formed along the longitudinal direction, and the one side of the webbing inserted and wound into the long hole contacts the outer peripheral surface. When moved, and when the load is applied to the webbing in both directions, the new chiba curved to move the pressure fixed to one side of the webbing,

The belt locking tongue which is provided in the said tongue body, and which contains the spring which returns the curved movement of the said shinchi bar for pressure fixing of the webbing to the original position is made into the best embodiment.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the belt locking tongue according to the present invention.

The belt locking tongue 30 according to the present invention includes a tongue plate 100, a tongue body 200, a new tooth shaft 300, a new tooth bar 400, and a spring 500 as shown in FIGS. 2 to 10. It may be made, and may further include a cover 600 as shown in FIG.

Referring to FIG. 1, as shown in FIGS. 2 to 11, the tongue plate 100 has a buckle fastening hole 110 fastened to the buckle 40 at the tip thereof, and a webbing insertion hole to insert the webbing 10. 120 is formed. In addition, the tongue body 200 is formed through the long hole 210 so that the tongue plate 100 is inserted and coupled to one side so that the webbing 10 is inserted together with the webbing insertion hole 110 of the tongue plate 100. The opening 220 is formed to communicate with the long hole 210 at the lower side of the one side.

The tongue plate 100 is repeatedly made to be detached to the buckle 40 through the buckle fastening hole 110, and is firmly fastened so that the tongue plate 100 is not easily separated or damaged even in a strong impact, while the tongue body ( 200) is made of synthetic resin. At this time, if the tongue body 200 is not integrally formed, but is made of a plurality of pieces and coupled with the tongue plate 100, the tongue body 200 is disassembled during a sudden stop or accident, so as not to restrain the occupant safely. You may not be able to. Therefore, when integrally molding the tongue body 200, the tongue plate 100 of the steel material is insert molded so that the tongue body 200 and the tongue plate 100 are very firmly coupled.

However, if only the tip portion of the tongue plate 100 is insert-molded on the tongue body 200, the tongue plate 100 can be easily pulled out from the tongue body 200 by a strong impact. To prevent this, as shown in FIG. 3, the tongue plate 100 is insert-molded into the tongue body 200 over a large area, and the webbing 10 is inserted into the long hole 210 of the tongue body 200. Plate 100 is also formed with a webbing insertion hole 120 is inserted into the webbing 10.

In the tongue body 200, an opening 220 is formed to communicate with the long hole 210 into which the webbing 10 is inserted at a lower side of the tongue plate 100. The opening 220 is where the locking means for pressing and fixing the webbing 10 inserted into the long hole 210 is installed. That is, the locking means refers to the new tooth shaft 300, the new tooth bar 400 and the spring 500 to be described later.

The new tooth axis 300 is a long fin having a horizontal edge 310 having a curved cross-sectional shape in cross-sectional trapezoidal shape as shown in FIGS. 2 to 10. It is a component for easily assembling the new tooth bar 400 to 220. As shown in FIGS. 2 to 10, both ends of the new tooth shaft 300 are inserted into a pair of slide holes 221 respectively formed through both ends of the opening 220 of the tongue body 200, and the slide curve moves. . Accordingly, the pair of slide holes 221 are inserted at both ends of the new tooth shaft 300, and are formed through the openings 220 at both ends of the pair of slide holes 221 in a curved line to move the new tooth shaft 300 in a curved manner. The cross section of the new tooth shaft 300 has a trapezoidal shape so that the new tooth bar 400 to be described later moves the slide curve along a predetermined path without rotating about the new tooth shaft 300. Therefore, the one surface of the webbing 10 is to make the surface 420 of the new tooth bar 400, which will be described later, to be appropriately in contact with the surface fixed.

The new tooth bar 400 inserted into the opening 220 using the new tooth shaft 300 as a central axis has the new tooth shaft 300 in the shaft hole 410 formed through the longitudinal direction as shown in FIGS. 2 to 10. ) Is inserted into the opening 220 of the tongue 200. Here, the shaft hole 410 of the new tooth bar 400 will be molded into the same shape as the cross-sectional shape of the new tooth shaft 300 because the new tooth shaft 300 is inserted. In addition, the new tooth bar 400 slides along the opening 220 along with the new axis 300 while one surface of the webbing 10 inserted and wound into the long hole 210 contacts the outer circumferential surface thereof. At this time, as shown in FIGS. 8 and 10, when the load is applied to the webbing 10 in both directions, the new tooth bar 400 curves to press-fix one surface of the webbing 10.

When one surface of the webbing 10 is pressed and fixed by the outer circumferential surface of the new tooth bar 400, when the contact portion of the new tooth bar 400 and the webbing 10 comes into surface contact, a sudden compression of the webbing 10 is fixed. Since the new Chiba 400 is in contact with a large area will be able to prevent the cutting of the webbing 10 at the source. Accordingly, as shown in FIGS. 9 and 10, the surface of the shinchi bar 400 that press-fixes one surface of the webbing 10 may be formed in a plane 420 shape. That is, the plane 420 of the new tooth bar 400 is inserted to face the inside of the opening 220 of the tongue body 200 so as to press fix one surface of the webbing 10. At this time, the new tooth axis 300 so that the plane 420 of the new tooth bar 400 curves along a predetermined path without rotating the new tooth bar 400 so that the surface of the webbing 10 can be fixed at all times. The cross section of is formed in trapezoidal shape.

When the new tooth shaft 300 and the new tooth bar 400 are curved to fix the compression on the webbing 10, the new tooth shaft 300 and the new tooth bar 400 may be pulled bidirectionally due to a sudden two-way load of the webbing 10. Therefore, when the normal or sudden bi-directional pull of the webbing 10 is stabilized, the curved movement of the new tooth shaft 300 and the new tooth bar 400 is returned to its original position, and at the same time, an arbitrary curve according to a small load is achieved. Spring 500 is installed to prevent movement. That is, the spring 500 is installed in the tongue body 200, as shown in Figures 2 to 10, and returns the curved movement of the new tooth bar 400 for the pressure fixing of the webbing 10 to its original position. .

The spring 500 is a convex leaf spring, as shown in Figures 2 and 3, is fixed to the inner surface of the opening 220 of the tongue body 200 is elastic to the inner peripheral surface of the Shin Chiba 400 I can support it. In this case, when assembling the new tooth shaft 300 and the new tooth bar 400, first, the spring 500 is fixed to the inner surface of the opening 220 of the tongue body 200, and the new tooth bar 400 is opened. Align the shaft hole 410 of the new tooth bar 400 with the slide hole 221 in the inserted state. Next, the new tooth shaft 300 is inserted into the slide hole 221 and the shaft hole 410 of the new tooth bar 400 to assemble the new tooth shaft 300 and the new tooth bar 400. Accordingly, the inner outer circumferential surface of the new tooth bar 400 is to be elastically supported by the spring 500.

In addition, the spring 500 is a pair of torsional coil springs, as shown in Figures 4 to 10, respectively fixed to the outer surface of both ends of the opening 220 of the tongue body 200 is the new tooth shaft 300 Support both ends elastically. At this time, the new tooth shaft 300, both ends should penetrate through the slide hole 221 to the outer surface of both sides of the opening 220 of the tongue body 200, respectively. That is, since the new tooth shaft 300 moves linearly with the new tooth bar 400, the elastic support by the spring 500 of the new tooth shaft 300 is the same as the elastic support of the new tooth bar 400. Can be. At this time, when assembling the new tooth shaft 300 and the new tooth bar 400, first, the shaft hole 410 of the new tooth bar 400 in the slide hole 221 in a state where the new tooth bar 400 is inserted into the opening 220. ) Next, the new tooth shaft 300 is inserted into the slide hole 221 and the shaft hole 410 of the new tooth bar 400 to assemble the new tooth shaft 300 and the new tooth bar 400. Lastly, the pair of torsion coil springs are fixed to the outer surfaces of both sides of the opening 220 of the tongue body 200, respectively, and the pair of torsion coils 300 are elastically supported. To be in a ready state.

On the other hand, if the cinch 300 and the spring 500 is exposed to the outside through the outer surface of both ends of the opening 220 of the tongue body 200 will be easily separated from the tongue body 200. Accordingly, as shown in FIG. 11, a pair of covers 600 may be installed to open and close the outer surfaces of both side ends of the opening 220 of the tongue body 200. The cover 600 is preferably coupled to the outer surface of both sides of the opening 220 so as to conform to the overall shape of the tongue body 200 in order to prevent interference due to the beauty or appearance of the protrusion.

Hereinafter, a preferred embodiment of the seat belt 1 having a belt locking tongue according to the present invention will be described with reference to FIG. 1, and a redundant description of the belt locking tongue 30 according to the present invention will be omitted. .

The seat belt 1 according to the present invention is a belt-shaped webbing 10 for securing the occupant as shown in FIG. 1, the retractor 20 on which the webbing 10 is wound, and the webbing 10. It comprises a belt locking tongue 30 coupled to the drawn end of the) and the buckle 40 is detachably inserted into the belt locking tongue 30.

The webbing 10 prevents the occupant's body from tumbling forward or deviating from the seat due to driving inertia when the vehicle is suddenly stopped or overturned due to a collision accident, and the buckle 40 is a webbing 10. It is possible to fix the belt locking tongue 30, which is drawn out, to the vehicle body.

The belt locking tongue 30 is a buckle fastening hole 110 is fastened to the buckle 40 as shown in Figures 2 to 11 is formed at the tip, the webbing insertion hole 120 so that the webbing 10 is inserted The formed tongue plate 100 and the tongue plate 100 are inserted and coupled to one side of the tongue plate 100 so that the webbing 10 is inserted together with the webbing insertion hole 120 of the tongue plate 100. And a pair of slide holes formed through the tongue body 200 and openings 220 formed at both sides of the opening 220 of the tongue body 200 so as to communicate with the long hole 210 at the lower side of the one side. Both ends are inserted into the 221 and slide curves are moved, and the new tooth axis 300 is formed in the new tooth axis 300 having a curved horizontal edge 310 in a cross-sectional trapezoidal shape, and a shaft hole 410 penetrating along the longitudinal direction. Is inserted into the opening 220 of the tongue 200 to be inserted, and inserted into the long hole 210 When one surface of the webbing (10) being wound is in contact with the outer circumferential surface and slide curve moves along the opening (220) with the new tooth axis 300, the webbing (10) when the load is applied in both directions when the webbing is pulled New Chiba 400 curved to move the fixed surface of the (10) and the tongue body 200 is installed, the movement of the new Chiba 400 for the fixed compression of the webbing (10) in the original position It comprises a spring 500 to return to.

In addition, the shinchiba 400, the surface for pressing and fixing one surface of the webbing 10 is characterized in that the plane 420 shape.

In addition, the spring 500 is a convex leaf spring, is fixed to the inner surface of the opening 220 of the tongue body 200 is characterized in that it supports the inner peripheral surface of the new tooth bar 400 elastically. do.

In addition, the new tooth shaft 300, both ends penetrate through the slide hole 221, respectively protrudes on the outer surface of the both ends of the opening 220 of the tongue body 200, the spring 500, A pair of torsional coil springs, each of which is fixed to an outer surface of both sides of the opening 220 of the tongue body 200, is characterized in that it supports elastically both ends of the new tooth shaft 300.

In addition, it characterized in that it further comprises a pair of covers 600 for opening and closing each of the outer surface of both sides of the opening 220 of the tongue body 200.

The embodiments of the present invention described above and illustrated in the drawings should not be construed as limiting the technical idea of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention as long as it will be apparent to those skilled in the art.

Industrial Applicability The present invention provides a belt locking tongue and a seat belt having the same, which facilitate the fixing of the webbing as well as the processing and assembly, and can prevent the cutting of the webbing. Tongue and seat belt having the same can be used in the automotive industry.

Claims

A buckle fastening hole fastened to the buckle is formed at the tip, and a tongue plate having a webbing insertion hole formed to insert the webbing;

Tongue body is inserted through the tongue plate is coupled to one side through the long hole so that the webbing is inserted with the webbing insertion hole of the tongue plate, the tongue body formed in the opening to communicate with the long hole in the lower side,

Both ends are inserted into a pair of slide holes respectively penetrating through both ends of the opening of the tongue body to move the slide curve, and a new tooth axis having a transverse curve in a cross-sectional trapezoidal shape;

A slide curve is inserted along the opening along with the new tooth shaft while one surface of the webbing inserted into the opening of the tongue is inserted into the opening of the tongue so that the new tooth shaft is inserted into the shaft hole formed along the longitudinal direction, and the one side of the webbing inserted and wound into the long hole contacts the outer peripheral surface. When moved, and when the load is applied to the webbing in both directions, the new chiba curved to move the pressure fixed to one side of the webbing,

And a spring installed on the tongue and including a spring for returning the curved movement of the new tooth bar to the original position for compression fixing of the webbing.
The method of claim 1,

The Shinchiba,

Belt locking tongue, characterized in that the surface for pressing and fixing one surface of the webbing is planar shape.
The method of claim 1,

The spring is,

A belt locking tongue, which is a convex leaf spring and is fixed to an inner surface of the opening of the tongue to elastically support the inner circumferential surface of the cinch bar.
The method of claim 1,

The new tooth axis,

Both ends penetrate the slide hole and protrude to the outer surfaces of both sides of the opening of the tongue body,

The spring is,

And a pair of torsional coil springs, each of which is fixed to an outer surface of both side ends of the opening of the tongue body to elastically support both ends of the new tooth shaft.
The method according to claim 3 or 4,

Belt locking tongue further comprises a pair of covers for opening and closing the outer surface of both sides of the opening of the tongue body, respectively.
A seat comprising a belt-shaped webbing that secures the occupant, a retractor on which the webbing is wound, a belt locking tongue coupled to the drawn end of the webbing, and a buckle to which the belt locking tongue is detachably inserted. In the belt,

The belt locking tongue,

A buckle fastening hole fastened to the buckle is formed at the tip, and a tongue plate having a webbing insertion hole formed to insert the webbing;

Tongue body is inserted through the tongue plate is coupled to one side through the long hole so that the webbing is inserted with the webbing insertion hole of the tongue plate, the tongue body formed in the opening to communicate with the long hole in the lower side,

Both ends are inserted into a pair of slide holes respectively penetrating through both ends of the opening of the tongue body to move the slide curve, and a new tooth axis having a transverse curve in a cross-sectional trapezoidal shape;

A slide curve is inserted along the opening along with the new tooth shaft while one surface of the webbing inserted into the opening of the tongue is inserted into the opening of the tongue so that the new tooth shaft is inserted into the shaft hole formed along the longitudinal direction, and the one side of the webbing inserted and wound into the long hole contacts the outer peripheral surface. When moved, and when the load is applied to the webbing in both directions, the new chiba curved to move the pressure fixed to one side of the webbing,

Seat belt is provided on the tongue, and comprising a spring for returning the curved movement of the new tooth bar for the compression fixing of the webbing to the original position.
The method of claim 6,

The Shinchiba,

Seat belt, characterized in that the surface for pressing and fixing one surface of the webbing is planar shape.
The method of claim 6,

The spring is,

A seat belt having a convex shape and fixed to an inner surface of the opening of the tongue to elastically support the inner circumferential surface of the new tooth bar.
The method of claim 6,

The new tooth axis,

Both ends penetrate the slide hole and protrude to the outer surfaces of both sides of the opening of the tongue body,

The spring is,

A pair of torsion coil springs, each seat belt is fixed to the outer surface of both sides of the opening of the tongue body, characterized in that the seat belt elastically supporting both ends of the new tooth shaft.
The method according to claim 8 or 9,

A seat belt, characterized in that it further comprises a pair of covers for opening and closing the outer surface of both sides of the opening of the tongue body, respectively.