JPH057088Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a passive seat belt device for an automobile.

(Prior art) In an automobile, a seat belt is extended from the side of the seat at the center of the vehicle body, across the front side of the seat, and toward the door, and is attached to a guide rail arranged from the roof rail above the door opening to the pillar. A passive seat belt device in which a guide bracket is provided movably and a tongue at the end of the seat belt is removably connected to a buckle fixed to the guide bracket is generally known (for example, in Japanese Utility Model Application No.
(See Publication No. 44754).

In the case of the above-mentioned passive seat belt device, the guide bracket moves between the roof rail side and the pillar side of the guide rail as the door opens and closes, and when the occupant is seated and the door is closed, the seat belt is automatically attached to the occupant. It will be in a state where it is attached. If the guide bracket becomes immovable on the guide rail while the seat belt is being worn, the buckle must be operated to remove the tongue at the end of the seat belt from the buckle.

(Problems to be solved by the invention) In the case of the conventional passive seat belt device mentioned above,
Because it is necessary to attach the buckle to the guide bracket, this buckle protrudes greatly from the guide rail.When the door is open, this buckle is located on the roof rail side, making it an eyesore and obstructing getting on and off the vehicle. The load of the occupant acts on the guide rail through the seat belt, so it is necessary to increase the strength of the guide rail or guide bracket.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a guide rail that is disposed from the roof rail of an automobile to a pillar on the side of the seat, and that is movable to this guide rail. a guide bracket provided on the
A seat belt which is disposed across the front side of the seat from the center side of the vehicle body and whose end portion is removably connected to the guide bracket, and which is capable of engaging and releasing the end portion of the seat belt; A passive seat belt device for a motor vehicle is provided, which includes a locking means directly supported by a pillar part so as to directly transmit a load from the seat belt to the pillar part.

(Function) In the case of the above passive seat belt device, when the door is closed and the seat belt is fastened by the occupant, the end of the seat belt is held against the pillar by the locking means of the pillar, and the load of the occupant is transferred to the seat. It can be received directly at the pillar part via the belt. When the locking means is disengaged, the seatbelt is simply engaged with the guide bracket, and when necessary, the seatbelt is disengaged from the guide bracket and removed. In other words, the guide bracket only needs to be able to move by engaging the end of the seatbelt, and can work together with the guide rail to receive the load of the occupant, or to lock the engagement with the end of the seatbelt to receive this load. There is no need to provide a means of cancellation.

(Effect of the invention) Therefore, according to the invention, the structure of the connecting part between the guide bracket of the guide rail and the end of the seat belt can be made simple and compact so that it does not get in the way of getting on and off the seat, and also allows the passenger to get on and off the seat. The load of
Since it can be directly received by the pillar part without going through the guide rail, there is no need to increase the rigidity of the guide rail or guide bracket, and the weight can be reduced.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In the cabin structure of an automobile shown in FIG. 1, 1 is a floor, 2 is a seat provided on this floor 1, and 3 is a door, which includes a tunnel portion 1a of the floor 1 and a roof rail of the vehicle body that constitutes the door opening. Part 4 and
A passive seat belt device is constructed using the pillar portion 5 on the side of the seat.

That is, a retractor 7 for retracting the seat belt 6 is fixed to the tunnel portion 1a at the center of the vehicle body.
From the front pillar part 8 of the door 3 to the roof rail part 4
A guide rail 9 is disposed across the pillar portion 5 on the side of the seat, and the end of the seat belt 6 extending from the retractor 7 is engaged with a guide bracket 10 movably provided on the guide rail 9. It matches. The guide bracket 10 is connected to the tip of a cable 12 that is wound around a cable winding device 11 under the seat side pillar portion 5, and this cable winding device 11 is linked to the opening and closing of the door 3. A motor 13 lets out the cable 12 as the door 3 opens, and winds it up as the door 3 closes. A locking means 14 capable of engaging and releasing the end portion of the seat belt 6 is provided at a position on the seat side of the upper portion of the pillar portion 8.

The seat belt 6 is a shoulder belt that is worn diagonally across the seated occupant, but in this embodiment, a waist belt 15 is also separately provided.

Now, the specific relationship between the seat belt 6, the guide rail 9 and the locking means 14 is shown in FIGS. 2 and 3.

First, as shown in FIG. 2, a cover 17 is connected to the end tongue 16 of the seat belt 6, and a guide bracket 10 provided on the guide rail 9 so as to be movable by rollers 18 is inserted into the cover 17. ing. As shown in FIG. 3, a U-shaped leaf spring 19 is provided at the upper part of the inside of the cover 17, and this leaf spring 19 fits into the engagement recess 10a at the tip of the guide bracket 10, thereby connecting the guide bracket 10 and the tongue. 16 are engaged.

Further, a hook member 20 projects from the tongue 16 through the cover 17, and this hook member 2
A downward engaging recess 20a is formed at the tip of the seat 0, and this hook member 20 is adapted to engage with the locking means 14 of the seat side pillar section 5. That is, the locking means 14 locks the hook member 2
An engagement pin 21 into which the engagement recess 20a of No. 0 fits is located in front of the guide rail 9, and support brackets 22 and 23 supporting this engagement pin 21 extend from both sides of the guide rail 9 to its back. It is rotatably supported by a horizontal support shaft 24 with respect to the pillar part 5 at the back. In other words, the locking means 14
is directly supported by the pillar portion 5 by the horizontal support shaft 24. One support bracket 23 passes through a trim 25 covering the pillar portion 5 and projects to the back of the horizontal support shaft 24, and an operating piece 26 for rotating the locking means 14 is provided on this projecting portion.

Thus, the locking means 14 has a return spring 27 provided between the support bracket 23 and the horizontal support shaft 24, so that the engagement pin 21 is locked into the hook member 2.
0 in the direction of engagement from below.
A stopper (not shown) is provided in the guide rail 9 for abutting the guide bracket 10 at a position near the locking means 14 and stopping the hook member 20 at an engagement position with the locking means 14. , the locking means 14 is biased by the return spring 27 to lock the support bracket 2.
3 comes into contact with the edge of the through hole 25a of the trim 25 to maintain the engaged position.

FIG. 4 shows the structure around the pillar section 8 in front of the door, and the guide rail 9 is covered with a trim 28 from this pillar section 8 through the roof rail section 4 to the pillar section 5 on the side of the seat. It is being said. In addition, in FIG. 4, 29 is a windshield.

In the above passive seat belt device, when the door 3 is open, the seat belt 6 extends to the door front pillar portion 8 of the guide rail 9 as shown by the chain line in FIG. When door 3 is closed, motor 1
3, the cable winding device 11 winds up the cable 12, and the guide bracket 10 is guided by the guide rail 9 and moved to the pillar portion 5 on the side of the seat, as shown in FIG. The hook member 20 of the seat belt 6 engages with the engagement pin 21 of the locking means 14 in the engagement position.

In this engaged state, the load of the occupant acts directly on the pillar portion 5 via the seat belt 6, the hook member 20, and the locking means 14. Next, when the door 3 is opened, the cable 12 is unwound by the operation of the cable winding device 11 by the motor 13, and the guide bracket 10 is guided by the guide rail 9 and moved to the pillar section 8 in front of the door, thereby removing the seat belt. 6 leaves the crew. When the door 3 is open, as shown in FIG. 4, what protrudes from the trim 28 is the tongue 16 at the end of the seat belt and the cover 17, which does not become an eyesore.

As shown in FIG. 3, the hook member 20 is engaged with the locking means 14 and the cable winding device 1
When the passive seat belt device does not operate normally due to a first-class failure, the locking means 14 is rotated by lifting the operating piece 26 against the bias of the return spring 27, and is engaged with the hook member 20. , and forcibly pull the seat belt 6. As a result, the leaf spring 19 in the cover 17 is bent and disengaged from the guide bracket 10, that is,
The seat belt 6 comes off the guide bracket 10, allowing the occupant to escape.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view showing the overall configuration of a passive seat belt device for an automobile, FIG. 2 is a sectional view showing the relationship between the seat belt, the guide rail, and the locking means, and FIG. FIG. 4 is a partially cutaway front view showing the same relationship, and FIG. 4 is a sectional view showing the relationship between the seat belt and the guide rail at the pillar portion in front of the door. 2... Seat, 3... Door, 4... Roof rail section, 5... Seat side pillar section, 6... Seat belt, 7... Retractor, 9... Guide rail, 10... Guide bracket, 14... ...Lock means, 16...Tang, 20...Hook member, 2
1... Engagement pin, 26... Engagement release operation piece.

Claims (1)

[Scope of claim for utility model registration] A guide rail disposed from the roof rail of the automobile to a pillar on the side of the seat, a guide bracket movably provided on the guide rail, and a side from the center of the vehicle body to the front of the seat. a seat belt that is disposed across the vehicle and whose end portion is removably connected to the guide bracket; A passive seat belt device for a motor vehicle, comprising: a locking means supported directly on the pillar portion for direct transmission to the pillar portion.