JPH0213249Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a buckle attachment device for attaching a buckle to a vehicle body, which is used in a seat belt device for protecting occupants in a vehicle emergency.

In the seat belt device, a tongue plate attached to a part of the webbing for restraining an occupant engages with a buckle, so that the occupant can put the webbing on.

The buckle is securely attached to the vehicle body by a buckle attachment device to support webbing tensions that may occur in a vehicle emergency. In this buckle attachment device, a tensile material such as a metal plate or webbing housed in a cylindrical cover is inserted into a mounting hole provided in a part of the buckle body and folded back, and the webbing tension is transmitted through this tensile material. It is designed to be supported by the vehicle body (Utility Model Application No. 50-49819, Utility Model Application No. 53-48318).

However, in this buckle attachment device, the tensile material and the buckle are attached so that they cannot be moved relative to each other, so that the buckle stands near the passenger's waist in the normal state, making it easy for the passenger to operate the buckle. . The buckle and the tensile material are attached using specially shaped parts or rivets. If specially shaped parts are used for this attachment, the structure will be complicated and the number of parts will increase, so a structure in which the buckle and the tensile material are fixed with rivets is simple.

However, in the case of rivet attachment, the buckle body may deform the cylindrical cover and rotate relative to the tensile material about the rivet. In particular, when the cylindrical cover is made of a soft resin material such as vinyl chloride, there is a high possibility of relative rotation. Therefore, it may cause vibration noise.

In consideration of the above-mentioned facts, the present invention aims to provide a buckle attachment device that securely attaches a tensile material to a buckle body and prevents relative rotation.

The buckle attachment device according to the present invention is designed to prevent relative rotation between the tension member and the buckle body by bringing a rib provided on the buckle cover into contact with the intermediate portion of the tension member.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the buckle 10 according to this embodiment has a body 12 that includes a tensile material 14 and a bolt 1.
6, it can be attached to the vehicle body (not shown).

The buckle 10 can be engaged with a tongue plate attached to the end of the webbing for occupant restraint (not shown), and by engaging this tongue plate with the buckle 10, the occupant becomes attached to the webbing (the buckle 10 is not engaged). (The internal structure is not shown).

The passenger also presses the release button 18 on the buckle 10.
By pressing , the tongue plate can be separated from the buckle 10 and the webbing can be released.

A part of the body 12 of the buckle 10 is extended into a plate shape, and an elongated attachment hole 20 is bored therein.

The tensile material 14 is made by punching a thin steel plate into a long and narrow shape, and the middle part is inserted into the mounting hole 20 and then folded back.Bolts 16 pass through both ends, and the bolts 16 are fastened to the vehicle body (not shown). A tensile material 14 in which the buckle 10 is formed of a metal plate,
It is locked to the vehicle body via bolts 16.

As shown in FIG. 1, near the folded portion of the tensile material 14, one rivet 22 as a shaft attachment member is inserted into the tensile material 14 and the body 12.
The intermediate portion of the body 12 is connected to the body 12.

On the other hand, the buckle body 12 has a pair of top covers 24 and a lower cover 2 on the front and back sides of the buckle body.
6 is fixed. These covers 24, 26
has a thin grain shape and covers the buckle body 12 to prevent the buckle body 12 from being exposed to the outside.

As shown in FIG. 3, a pair of mutually parallel ribs 28 protrude from the inside of the upper cover 24 toward the buckle body 12. The rib 28 has a substantially L-shaped side surface, and this L-shaped recess abuts the intermediate bent portion of the tensile material 14 and presses this bent portion toward the rivet 22.

Therefore, in this rib 28, the tensile material 14 is attached to the rivet 2.
It serves as a stopper to prevent the buckle 10 and the tensile material 14 from rotating in two directions, and prevents relative rotation between the buckle 10 and the tensile material 14. In particular, the narrow tip of this rib 28 is inserted into the attachment hole 20 of the buckle body and comes into contact with the folded part of the tensile material 14, so that the relative rotation between the tensile material 14 and the buckle can be reliably stopped. can.

Even if a slight gap is formed between the rib 28 and the bent portion of the tensile material 14 due to manufacturing tolerances, assembly errors, etc., there is no substantial problem.

A cylindrical cover 30 made of a soft material such as a synthetic resin material is attached around the tensile material 14 to cover the tensile material 14 .

The buckle mounting device of this embodiment configured as described above allows the buckle 10 to be placed upright from the floor of the vehicle body by tightening the bolts 16 to the vehicle body, and the passenger can attach the tongue plate to the buckle 10.
0, the webbing becomes attached.

The buckle 10 is attached to the tensile material 14 by the rivet 22.
is attached to. Further, as shown in FIGS. 1 and 2, the outer peripheral surface of the folded portion of the tensile material 14 is in contact with the rib 28. Therefore, even if the buckle body 12 tries to rotate around the rivet 22 in the clockwise and counterclockwise directions (direction of arrow A) in FIG. rotation is prevented. As a result, the buckle body 12 and the tensile material 1
Since the relative rotation with 4 is prevented, the buckle 10
is always in a fixed position, improving the operability of the tongue plate attachment/detachment operation by the passenger. In addition, since the buckle 10 always faces in a fixed direction, even if the webbing tension is transmitted through the tongue plate in a vehicle emergency, the webbing tension can be reliably transferred to the tensile material 1.
4. It can be supported on the vehicle body via the mounting bolts 16, and the occupant can be kept in a restrained state by the webbing to ensure the safety of the occupant. Moreover, since the outer peripheral surface of the folded portion of the tensile material 14 comes into contact with the rib 28, relative rotation between the buckle body 12 and the tensile material 14 is prevented. has been formed,
Alternatively, even if there is a gap between the inner circumferential surface of the cylindrical cover 30 and the outer circumferential surface of the buckle body 12, relative rotation between the buckle body 12 and the tensile material 14 can be reliably prevented.

In the above embodiment, the tensile material 14 is the rivet 22.
Although a structure is shown in which the tensile material is fixed to the buckle body 12 using rivets, the present invention is also applicable to a structure in which the tensile material is attached to the buckle body 12 without using rivets.

As explained above, the buckle attachment device according to the present invention has a simple structure and can securely attach the buckle to the tensile material by bringing the rib provided on the buckle cover into contact with the intermediate portion of the tensile material to prevent relative rotation between the tensile material and the buckle body. This has the excellent effect of preventing the relative rotation of the buckle and always arranging the buckle at a constant position.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the buckle attaching device according to the present invention, FIG. 2 is a sectional view taken along the line of FIG. 1, and FIG. 3 is a perspective view showing a buckle top cover. 10...Batsukuru, 12...Body, 14...
Tensile material, 20...Mounting hole, 24...Atsupa cover, 28...Rib.

Claims (1)

[Scope of utility model registration request] a mounting hole formed in the buckle body; a tensile material whose longitudinal intermediate portion is inserted into the mounting hole and folded back to engage with the buckle body; a single pivoting member that connects the tensile material to the buckle body; and a single shaft attachment member that is provided on a buckle cover attached to the buckle body and abuts against the outer surface of both ends in the width direction of the intermediate portion of the tensile material to connect the tensile material and the buckle body. A buckle attachment device comprising: a pair of ribs that prevent relative rotation of members in a direction around an axis.