JPS5914292Y2 - car safety belt device - Google Patents

Description

[Detailed description of the invention] This invention relates to a safety belt device for an automobile.

Traditionally, automobile safety belt systems have adopted a so-called passive belt system, in which the belt automatically moves to a position where the occupant is not restrained when the door is opened, and automatically moves to the position where the occupant is restrained when the door is closed. When the belt moves from the non-restraint position to the restraint position, the belt hits the occupant's ears or face, causing discomfort to the occupant.In addition, the belt mounting bracket does not align with the passenger in the restraint position. However, the restraint force during a collision is weak due to sagging, and the forward movement of the occupant becomes large, which is dangerous.

This invention aims to solve the above-mentioned conventional drawbacks, and is designed to prevent the belt from sagging in the occupant restraint position, and to prevent the belt from coming into contact with the occupant's ears or face when the belt is attached from the non-restraint position to the restraint position. The purpose of this invention is to provide a safety belt device that does not cause any damage.

This invention will be explained in detail below with reference to embodiments shown in the drawings.

Upper roof rail 3 surrounding door opening 2 of vehicle body 1
A belt guide rail 6 is attached to the center pillar 4 on the rear side of the roof rail 3 along the inner panel 3a of the roof rail 3 through guide rail fixtures 5 at three locations at both ends and the center. is fixed.

The belt guide rail 6 has a substantially channel shape, and includes a substantially horizontal roof side portion 6a attached to the upper edge of the door opening 2 over substantially the entire length of the roof rail 3, and a substantially horizontal roof side portion 6a that is bent downward from the rear end of the roof side portion 6a. The pillar side part 6b is substantially vertical and is attached to the upper part of the center pillar 4. The roof side part 6a has an opening at the lower surface, and this opening part 5a faces downward and slopes outward from the vehicle body. The front side of the pillar side part 6b is open.
This opening 6b faces toward the front of the vehicle body and is inclined inward from the vehicle body.

Guide roller locking portions 6a2, 6bz protruding inward from both sides are formed in each of the openings 6al, 6bl.

A belt fitting 8 is fitted into the belt guide rail 6 so as to be movable from the roof side portion 6a to the pillar side portion 6b.

The other end of a belt 11, which is fixed to a central tunnel portion 9 of the vehicle body at the rear of the seat 7 or has one end fixed to a retractor 10, is connected to the belt attachment 8.

The belt attachment tool 8 is formed of a metal plate, and has a substantially square shape as shown in FIG. There is.

Guide rollers 12 facing each other at intervals are attached to the belt guide rail engaging portion 8a, and the guide rollers 12 are slid into the belt guide rail 6 by engaging with the guide roller locking portions 6a2 and 6b2. It is attached so that it can move freely.

The belt attachment portion 8b has a belt attachment hole 13 at its tip, and the annular tip portion 11a of the belt 11 is inserted into the belt attachment hole 13 and connected thereto.

The tip of the belt guide rail retaining portion 8a is connected to a push-pull cable 14, and a motor 15 interlocked with a door switch (not shown) reciprocates the push-pull cable 14, and when the door is opened, the push-pull cable 14 is pushed and the belt is moved. The attachment 8 is moved from the pillar side part 6b to the roof side part 6a, and when the door is closed, it is pulled and moved to the roof side part 6.
a to the pillar side portion 6b.

Additionally, a pillar side portion 6 is provided at the bent portion of the belt attachment 8.
A locking groove 8C is provided at the lower end position on the b side to support the belt fixture, and the groove 8C locks onto a pin 17 protruding from the center pillar 4 via the guide rail fixture 5, thereby securing the belt. The fixture 8 is stopped and held to increase support strength when the belt is attached.

In the belt attachment 8 guided along the belt guide rail 6 as described above, the bell l-attachment part 8b connected to the belt 11 protrudes further downward from the lower surface opening 5a in the roof side part 6a, and also extends from the roof rail. 3 and the roof side portion 6a of the belt guide rail 6, the lower portions of which are inclined toward the outside of the vehicle body, the belt attachment portion 8b is also guided with its lower portion inclined toward the outside of the vehicle body.

Therefore, as shown in FIG. 2, the belt 11 connected to the lower end of the belt attachment part 8b is positioned outside the vehicle body with the upper end of the belt 11 supported downward by the downward projecting length of the belt attachment part 8b. while moving toward the rear of the vehicle.

Therefore, when the belt attachment tool 8 moves on the roof side portion 6a, a part of the belt 11 does not come into contact with the occupant's face or ears.

On the other hand, when the bell 1 to the attachment 8 move vertically on the pillar side part 6b, the belt attachment part 8b is attached to the front opening 6b.
1, and the front of the center pillar inner panel 4a itself and the belt guide rail pillar side portion 6b are inclined inward of the vehicle body, so the belt attachment portion 8b is also inclined inward of the vehicle body. You will be guided.

Therefore, the belt 1 connected to the front end of the belt attachment part 8b
At the pillar side portion 6b, the belt 11 is also pulled by the belt attachment portion 8b that projects inwardly of the vehicle body, so that the belt 1- is attached along the body of the occupant, and the belt 11 is no longer slack.

In addition, in the pillar side portion 6b, in order to strengthen the restraint of the occupant by the belt 11, a reinforcing plate 19 is integrally fixed to the back surface of the center pillar inner panel 4a at the mounting position of the belt guide rail 6. This prevents the pin 17 from easily coming off from the vehicle body and the restraint of the belt 11 from being released in the event of a vehicle collision.

In the above embodiment, the lower part of the roof rail 3 itself is inclined outward from the vehicle body, and the front part of the center pillar inner panel 4a itself is inclined towards the inside of the vehicle body, but if both are vertical surfaces, the guide The rail attachment 5 or the belt guide rail 6 itself may have a shape in which the lower part of the roof side part is inclined toward the outside of the vehicle body, and the front part of the pillar side part is inclined toward the inside of the vehicle body, and the belt 11 has a similar function. be effective.

As is clear from the above explanation, according to the safety belt device of this invention, the belt mounting tool is guided by the belt guide rail consisting of the roof side part and the pillar side part fixed to the upper part of the vehicle door opening. One end of the belt is connected, and the belt attachment device is guided at an angle toward the outside of the vehicle at the roof side, so the belt does not hit the occupant's face or ears when it moves from the unrestricted position to the restrained position. In addition, since the belt attachment tool is inclined inward to the vehicle body at the pillar side portion, the belt follows the body of the occupant when the belt is worn, and does not sag.

Therefore, it has various advantages such as preventing the occupant from moving forward in the event of a collision and improving safety.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of this invention, Fig. 2 is a sectional view taken along the line II--II of Fig. 1, and Fig. 3 is a sectional view taken along the line II-II of Fig. 1.
-III line sectional view, FIG. 4 is the IV arrow diagram of FIG. DESCRIPTION OF SYMBOLS 1...Vehicle body, 2...Door opening, 3...Roof rail, 4...Center pillar 5...Guide rail fixture, 6...Belt guide rail, 6a...Roof side part , 6b... Pillar side part, 7... Seat, 8
...Belt attachment tool, 8a...Belt guide rail engagement part, 8b...Bell I/attachment part, 12...Guide roller, 15...Pin.

Claims (1)

[Scope of Utility Model Registration Claim] A safety belt device for an automobile in which a belt guide rail is provided above the vehicle door opening, and a belt support is guided and moved by the guide rail to restrain and unrestrain an occupant. The belt guide rail, which has a channel-shaped cross section and has a continuous roof side part that is horizontal and a pillar side part that is vertical, is fixed to the upper part of the door opening of the vehicle body, and the belt attachment tool is attached to one end of the belt guide rail. is movably attached to the belt guide rail, and one end of the belt is fixed to the lower center of the vehicle body behind the seat, and the other end is connected to the other end of the belt attachment, and the belt is attached to the roof side opening of the belt guide rail. A safety belt device for an automobile, characterized in that the opening of the pillar side portion of the belt guide rail faces toward the front of the vehicle body and is inclined inwardly.