JP7318627B2 - Buckle device - Google Patents

Description

The present invention relates to a seat belt buckle device.

A vehicle such as a truck is equipped with a seat belt buckle device. The buckle device has a buckle body and a buckle support bracket that supports the buckle body. Further, the buckle device is provided with a harness for transmitting a signal from a detection section provided in the buckle body, and a harness support bracket for supporting the harness.

JP 2019-48567 A

In order to fix the position of the harness, it is necessary to restrict the rotation of the harness support bracket. In order to restrict the rotation, a configuration in which the harness support bracket sandwiches the buckle support bracket could be considered, but in such a configuration, the harness support bracket would be larger than the buckle support bracket.

Accordingly, the present invention has been made in view of these points, and an object of the present invention is to restrict the rotation of the harness support bracket without increasing the size of the harness support bracket.

In one aspect of the present invention, a metal buckle support bracket that supports a buckle body, and a plate-like plate that is disposed so as to overlap on the buckle support bracket and supports a harness extending from the buckle body a harness support bracket; and a fixing bolt for fixing the buckle support bracket and the harness support bracket to a vehicle body, the buckle support bracket having a protrusion formed to protrude upward, The harness support bracket has a rotation restricting portion for restricting rotation with respect to the buckle support bracket by coming into contact with the protrusion.

Further, the rotation restricting portion may restrict rotation of the harness support bracket with respect to the buckle support bracket when tightening the fixing bolt.

Further, the buckle support bracket may support the buckle main body via a belt, and the protrusion may be formed so as to surround an insertion hole through which the belt is inserted in the buckle support bracket. .

Moreover, it is good also as further providing the fixing member which fixes the said harness to the said harness support bracket so that the said harness may bend in the direction away from the said fixing bolt.

ADVANTAGE OF THE INVENTION According to this invention, it is effective in the ability to control rotation of a harness support bracket, without enlarging a harness support bracket.

It is a figure which shows the structure of the buckle apparatus 10 which concerns on one embodiment. FIG. 4 shows a buckle support bracket 40 and a harness support bracket 50; 4 is a diagram for explaining the positional relationship between a fixing bolt 60 and a harness 30; FIG.

<Configuration of Buckle Device>
A configuration of a buckle device according to one embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG.
FIG. 1 is a diagram showing the configuration of a buckle device 10 according to one embodiment. FIG. 2 shows the buckle support bracket 40 and the harness support bracket 50. FIG. FIG. 3 is a diagram for explaining the positional relationship between the fixing bolt 60 and the harness 30. As shown in FIG.

The buckle device 10 is provided on the body of a vehicle such as a truck near the seat, and constitutes a part of a seat belt device for restraining an occupant sitting on the seat. The seat belt restrains the occupant by connecting the buckle device 10 to the connecting fitting of the seat belt pulled out from the retractor.

The buckle device 10 is fixed to the vehicle body (seat in this case) via a fixing bolt. The buckle device 10 has a buckle body 20, a harness 30, a buckle support bracket 40, a harness support bracket 50, and a fixing bolt 60, as shown in FIG.

A connection fitting of a seat belt is detachably attached to the buckle body 20 . An insertion hole 22 into which a connecting fitting is inserted is provided in the upper portion of the buckle body 20 . The seat belt is held by the buckle device 10 by engaging the buckle main body 20 with the coupling fitting inserted into the insertion hole 22 . One end of the buckle belt 24 and one end of the harness 30 are fixed to the lower portion of the buckle body 20 .

The buckle main body 20 is provided with a detection portion for detecting whether or not the seat belt coupling fitting is attached to the buckle main body 20 . The detector outputs a signal when the connecting metal fitting is attached or when the connecting metal fitting is removed.

The harness 30 is, for example, a wire harness in which a plurality of electric wires are bundled, and transmits signals. Harness 30 transmits the signal which the detection part of buckle body 20 outputs as an example. One end of the harness 30 is connected to the buckle body 20 and the other end of the harness 30 is provided with a connector 32 .

The buckle support bracket 40 is a metal plate member that supports the buckle body 20 . The buckle support bracket 40 supports the buckle body 20 via the buckle belt 24 . The buckle support bracket 40 has a belt insertion hole 42, a bolt insertion hole 44, and a protrusion 46, as shown in FIG.

The belt insertion hole 42 has an elongated hole shape here, and the buckle belt 24 is inserted through the belt insertion hole 42 as shown in FIG. The belt insertion hole 42 is formed on the central side of the first flat plate portion 41 a of the buckle support bracket 40 .

The bolt insertion hole 44 is a hole through which a fixing bolt 60 (see FIG. 1) is inserted. The bolt insertion hole 44 is formed on the center side of the second flat plate portion 41 b of the buckle support bracket 40 . The first flat plate portion 41a extends obliquely forward and upward from the edge of the second flat plate portion 41b.

The protrusion 46 is a protrusion formed around the belt insertion hole 42 so as to protrude upward. Specifically, as shown in FIG. 2, the protrusion 46 is a wall formed to surround the belt insertion hole 42 . The projecting portion 46 and the belt insertion hole 42 are formed by so-called burring. By providing the belt insertion holes 42 and the protrusions 46 which are burred in this way, it is possible to suppress the buckle belt 24 from being damaged at the edges. The height of the protrusion 46 is greater than the thickness of the first flat plate portion 41a here.

Harness support bracket 50 supports harness 30 extending from buckle body 20 . The harness support bracket 50 is a flat bracket and is arranged so as to overlap the buckle support bracket 40 . Specifically, the harness support bracket 50 is positioned on the second flat plate portion 41 b of the buckle support bracket 40 . The harness support bracket 50 has a bolt insertion hole 52, harness support portions 54 and 55, and a rotation restricting portion 56, as shown in FIG.

The bolt insertion hole 52 is a hole through which the fixing bolt 60 is inserted. The bolt insertion hole 52 is formed on the center side of the harness support bracket 50 . Specifically, the bolt insertion holes 52 are formed at positions overlapping the bolt insertion holes 44 of the buckle support bracket 40 .

The harness support portions 54 and 55 are portions that support the harness 30 . The harness support portions 54 and 55 are provided at symmetrical positions when viewed from the bolt insertion hole 52 . The harness support portions 54 and 55 are formed to extend to both sides at one end of the harness support bracket 50 .

The harness support portions 54 and 55 are provided with band insertion holes 54a and 55a through which fixing members 70 (see FIG. 3) for fixing the harness 30 are inserted. The band insertion holes 54a and 55a are formed in a direction that intersects the width direction of the harness support bracket 50 at a predetermined angle α (see FIG. 3). The predetermined angle α is, for example, 30°.

1 and 3, the harness support portion 54 supports the harness 30, but the harness support portion 55 may support the harness 30 instead of the harness support portion 54 depending on the vehicle specifications in which the buckle device 10 is provided. do.

The rotation restricting portion 56 contacts the protrusion 46 of the buckle support bracket 40 to restrict rotation with respect to the buckle support bracket 40 . The rotation restricting portion 56 of the harness support bracket 50 located on the second flat plate portion 41b of the buckle support bracket 40 is in contact with the protrusion 46 of the first flat plate portion 41a of the buckle support bracket 40. As shown in FIG. The rotation restricting portion 56 restricts the rotation of the harness support bracket 50 in the direction of the dashed arrow shown in FIG. The rotation restricting portion 56 is the other end portion of the harness support bracket 50 here.

The fixing bolts 60 fix the buckle support bracket 40 and the harness support bracket 50, which are overlapped as shown in FIG. 1, to the vehicle body (here, the seat). The male-threaded shaft portion 62 of the fixing bolt 60 is inserted through the bolt insertion hole 44 of the buckle support bracket 40 and the bolt insertion hole 52 of the harness support bracket 50 . A head 64 of the fixing bolt 60 is located on the harness support bracket 50 .

When attaching the buckle device 10 to the vehicle body, the fastening bolts 60 are tightened to fix the buckle support bracket 40 and the harness support bracket 50 to the vehicle body. The rotation restricting portion 56 of this embodiment restricts rotation of the harness support bracket 50 with respect to the buckle support bracket 40 when the fixing bolt 60 is tightened.

The rotation of the buckle support bracket 40 when tightening the fixing bolt 60 is restricted by a plurality of beads provided on the vehicle body. Specifically, the rotation of the buckle support bracket 40 is restricted because the second flat plate portion 41b of the buckle support bracket 40 is in contact with the plurality of beads.

The harness 30 described above is fixed to the harness support bracket 50 by a fixing member 70, as shown in FIG. The fixing member 70 is, for example, a binding band, and fixes the harness 30 to the harness support portion 54 while being inserted through the two band insertion holes 54 a of the harness support portion 54 .

As described above, the band insertion holes 54a and 55a are formed in a direction that intersects the width direction of the harness support bracket 50 at a predetermined angle α. The harness 30 is flexed in a direction away from the fixing bolt 60 . As a result, the harness 30 is separated from the fixing bolt 60, so that it can be prevented from being caught between the fixing bolt 60 and the seat.

The harness 30 has a first portion 34 (FIG. 3) made of a soft material and a second portion 36 (FIG. 3) made of a harder material than the first portion 34 and connected together. It is connected to the buckle body 20 . The fixing member 70 fixes a portion of the second portion 36 away from the end portion 36 a to the harness support bracket 50 . By directing the end portion 36 a located closer to the buckle main body 20 than the fixing member 70 in the direction away from the fixing bolt 60 , the first portion 34 can be easily bent in the direction away from the fixing bolt 60 .

<Effects of this embodiment>
In the buckle device 10 of the present embodiment described above, the buckle support bracket 40 has a protrusion 46 formed by burring so as to protrude upward, and the harness support bracket 50 contacts the protrusion 46 to buckle. It has a rotation restricting portion 56 for restricting rotation with respect to the support bracket 40 .
As a result, by utilizing the protrusion 46 formed on the buckle support bracket 40, it is not necessary to provide the harness support bracket 50 with a bent portion for restricting rotation, for example. As a result, the rotation of the harness support bracket 50 can be appropriately restricted without enlarging the harness support bracket 50 .

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist thereof. be. For example, all or part of the device can be functionally or physically distributed and integrated in arbitrary units. In addition, new embodiments resulting from arbitrary combinations of multiple embodiments are also included in the embodiments of the present invention. The effect of the new embodiment caused by the combination has the effect of the original embodiment.

REFERENCE SIGNS LIST 10 buckle device 20 buckle main body 30 harness 40 buckle support bracket 46 protrusion 50 harness support bracket 56 rotation restrictor 60 fixing bolt 70 fixing member

Claims (2)

a metal buckle support bracket that supports the buckle body via a belt ;
a flat harness support bracket disposed so as to overlap the buckle support bracket and supporting a harness extending from the buckle body;
fixing bolts for fixing the buckle support bracket and the harness support bracket to the vehicle body;
with
The buckle support bracket has an annular protrusion surrounding an insertion hole provided in the center of the buckle support bracket and through which the belt is inserted and protruding upward,
The harness support bracket has a rotation regulating portion for regulating rotation with respect to the buckle support bracket when the harness support bracket comes into contact with the side surface of the protrusion and tightens the fixing bolt,
Buckle device. further comprising a fixing member for fixing the harness to the harness support bracket so as to bend the harness in a direction away from the fixing bolt;
The buckle device according to claim 1 .

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