JPH01311933A - Seat belt device for car - Google Patents

Abstract

PURPOSE:To prevent the exposure of belt at window part by leading a belt, stretched from a front seat shoulder part to backward, to downward via an anchor member supported at a rear door forward end part and stretching it to a retractor installed at lower part of a body pillar in forward of a rear door. CONSTITUTION:A seat belt consists of a lap belt 2 which constricts a waist part of a driver and a shoulder belt which constricts a shoulder part of a drive. The other end part of the shoulder belt 3 is stretched from a supporting part 5, installed at the outer side shoulder part of a seat back 4 of a front seat 1, to backward and is lead to downward via an anchor member having a belt insert hole 8 at forward end upper part of a triming material 7 of a rear door 6. The shoulder belt 3 in downward direction is stretched to a belt retractor 15 installed at lower part of a car body pillar between the rear door 6 and a front door. Fine appearance and open image in, especially, a 4 door pillarless hard top car or the like is thus maintained, without the exposure of the seat belt at the window part.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a seat belt device for an automobile that protects a front seat occupant.

[Conventional Technique #1] Generally, in the front seat of a car, such as the driver's seat or passenger seat,
Seat belt devices are installed with shoulder belts that prevent the occupant's upper body from moving forward in the event of a collision. This seatbelt VL@ is usually installed at the bottom of the center pillar, or a shoulder belt led out from the tractor along the inner wall surface of the center pillar, and then attached to a hanger installed at the top of the center pillar or in the middle of the roof site rail. The upper body of the occupant is restrained by attaching the shoulder belt to a member and installing a shoulder belt from the hanger member to a buckle provided on the side of the seat cushion. -37055@Refer to the official publication).

[Problems to be Solved by the Invention] In the seat belt device having the above configuration, the webbing of the shoulder belt installed on the inner wall surface of the center pillar obstructs the side view of rear seat occupants, and the hanger There is a problem in that the presence of this member reduces the comfort of passengers in the front seats. In particular, in so-called pillar-less hardtop cars that have no pillars in the window area, when a shoulder belt is stretched from the middle of the roof sight rail to the lower part, the webbing of this shoulder belt creates a unique appearance and appearance that is unique to the hardtop city. The sense of openness is lost, and
There is a problem in that an excessive impact load is input to the intermediate portion of the roof site rail via the shoulder belt during a vehicle collision.

Further, as shown in Japanese Utility Model Application No. 53-165527, for example, in a two-door type pillarless hardtop vehicle, the shoulder belt of the front seat is connected from a guide part provided on the shoulder of the seat back to the rear side of the vehicle body. It has been proposed that the rear end of the extended portion be wrapped around a belt retractor attached to the inner panel of the rear body. The seatbelt device with this configuration has the advantage that by positioning the webbing of the shoulder belt below the window section, it is possible to prevent a reduction in side visibility, etc.
The presence of the above-mentioned shoulder belt extension obstructs the ease of getting in and out of the rear seats, and the belt retractor is attached to the inner panel of the rear body in a protruding manner, which reduces the comfort of the rear seats. .

In addition, in a pillarless hardtop vehicle with a rear door, an extension of the shoulder belt led rearward from the seat back of the rear seat is connected to the Peltori i-Rakuta installed at the bottom of the rear door via an assisting member provided on the rear door. It may be possible to install a shoulder belt without reducing the comfort of the rear seats by configuring it so that it wraps around the rear seat, but in this case, the belt may be stretched due to the acceleration of the rear door when it is opened or closed. The locking mechanism of the retractor is likely to operate, and there are concerns that the occupant in the front seat may be unnecessarily restrained by the shoulder belt, or the locking mechanism may be delayed in operating in the event of a vehicle collision.

The present invention has been made to solve the above problems, and does not impede the ease of getting in and out of the rear seats.
To provide an S-to-belt device for an automobile that can prevent a locking mechanism of a belt retractor from malfunctioning in response to an RM closing operation of a rear door, and can improve passenger comfort, side visibility, appearance, etc. It is something to do.

[Means for Solving the Problems] A seatbelt device for an e-vehicle according to the present invention is a seatbelt device for protecting an occupant in a front seat, and includes a seatbelt device provided on the shoulder of a seatback of the front seat. A belt member extending from the support part to the rear side of the vehicle body, an anchor member supporting the belt member at the front end of the rear door, and a belt retractor around which the end of the belt member guided downward through the anchor member is wrapped. This belt retractor is attached to a vehicle body side member located near the front end of the rear door.

The vehicle body side member to which the belt retractor is attached may be a center pillar located between a front door and a rear door, or a side sill located below the center pillar.

[Function] According to the above configuration, the belt member extending from the support part provided at the shoulder part of the seat back of the front seat to the rear side of the vehicle body extends downward through the anchor member provided at the front end of the rear door. Since the belt member is led out to the outside through the window part, side visibility and appearance are improved, and the belt retractor around which the end of the belt member is wound is prevented. Since it is attached to the vehicle body side member located near the front end of the rear door, the locking mechanism of the belt retractor operates properly without being affected by the opening/closing operation of the rear door.

[Embodiment] FIG. 1 shows an embodiment of an automobile seat belt device according to the present invention, which is installed in a driver's seat 1 in a four-door type pillarless hardtop vehicle. This seat belt device includes a lap belt 2 that restrains the lower back of an occupant, and a shoulder belt 3 that is installed diagonally from the abdomen to the shoulders of the occupant and restrains the upper body.
The support portion 5 is guided rearward through a guide hole in a support portion 5 provided on the shoulder portion of the seat back 4 on the outside of the vehicle. The shoulder belt 3 extending rearward from the support portion 5 is inserted into the belt insertion hole 8 formed in the bezel 8a attached to the upper front end of the trim member 7 of the rear door 6 and the rear door inner panel 9, as shown in FIG. Anchor member 10 attached to the front end
It extends downward through the trim material 7 and is introduced between the trim material 7 and the rear door inner panel 9.

The belt insertion hole 8 formed in the trim material 7 is formed in an arcuate shape extending from the front end toward the lower rear. The anchor member 10 also has mounting legs 1 attached to a reinforcement 11 joined to the rear door inner panel 9.
A belt guide hole 14 corresponding to the belt insertion hole 8 is formed by being bordered by the round bar joint 148 and a round bar joint 148 attached to the base plate 12. is formed. Further, an anchor member 10 is attached to the outer side wall surface of the rear door inner panel 9.
A reinforcement 13 is attached to reinforce the attachment part of the.

As shown in FIG. 3, the end of the shoulder belt 3 guided downward from the belt guide hole 14 of the anchor member 10 is pulled out or rolled up by the belt retractor 15 in response to the movement of the driver's seat 1 backwards. It is removably wrapped. The belt retractor 15 is attached to a substantially intermediate portion in the vertical direction of an inner panel of a center pillar 18 that is erected on a side sill 17 between the front end of the rear door 6 and the rear end of the front door 16. Further, the belt retractor 15 is provided with a locking mechanism that prevents the shoulder belt 3 from being pulled out in an emergency such as a collision.

The upper half of the front end of the trim material 7 attached to the rear door inner panel 9 of the rear door 6 extends to the front end of the center pillar 18, and this extended portion 7a covers the upper inner wall surface of the center pillar 18. Belt retractor 15
and the lower part of the shoulder belt 3 is hidden. The lower end of the center pillar 18 is covered by an upward extension 19a of a trim member 19 attached to the side sill 17.

As mentioned above, the shoulder belt 3 that restrains the upper body of the passenger seated in the front seat such as the driver's seat 1 extends from the support part 5 of the seat back 4 toward the side facing the vehicle body, and is provided at the front end of the rear door 6. Since the shoulder belt 3 is configured to be guided downward through the anchor member 10, it is possible to prevent the shoulder belt 3 from being exposed to the outside through the window portion. Therefore, it is possible to prevent the webbing of the shoulder belt 3 from obstructing side visibility or impairing comfort, as in the case where the shoulder belt 3 is locked to a hanger member provided on a roof site rail or the like. This can be prevented, and the shoulder belt 3 can be installed in an appropriate state while maintaining the appearance and open feeling peculiar to a pillarless hardtop vehicle.

Further, the end portion of the shoulder belt 3 guided downward via the anchor member 10 is supported by being wrapped around a belt retractor 15 attached to a vehicle body side member, that is, a center pillar 18 located near the rear door 6. Therefore, it is possible to prevent problems such as the lock mechanism malfunctioning due to the influence of the acceleration that is applied when opening and closing the rear door 6, which would occur when the belt retractor 15 is attached to the rear door 6.
The belt retractor 15 can always be operated in a proper state.

Further, in the above embodiment, the belt insertion hole 8 formed in the trim material 7 of the rear door 6 and the belt guide hole 14 of the anchor member 10 are each formed in an arc shape extending diagonally rearward from the front end. Even when the shoulder belt 3 moves in response to opening/closing operations or the like, there is an advantage that the shoulder belt 3 can be prevented from twisting and the shoulder belt 3 can always be supported in a stable state. That is, in a normal state, the shoulder belt 3 is pulled downward at the anchor portion consisting of the belt insertion hole 8 and the belt guide hole 14 due to the pulling force of the belt retractor 15, and the force that pulls the shoulder belt 3 downward on the support portion 5 side of the seat back 4 In response to the resultant force, the shoulder belt 3 is located at the center of the belt insertion hole 8 and the belt guide hole 14, as shown in FIG.

When the rear door 6 is opened from the above state as shown in FIG. 5, the anchor portion moves outward, and the shoulder belt 3 is pulled forward with a strong force. Then, in response to this tensile force, the shoulder belt 3 moves toward the upper front side along the belt insertion hole 8 and the belt guide hole 14,
As a result, the shoulder belt 3 is supported in the belt guide hole 14 in a state substantially perpendicular to the tensile force.
A stable support state can be obtained. Further, as shown in FIG. 6, when the seat back 4 of the driver's seat 1 is tilted by the reclining mechanism, the support portion 5 moves rearward and downward, so that the shoulder belt 3 is pulled rearward and downward accordingly. It will be done. By moving the shoulder belt 3 rearward along the belt insertion hole 8 and the belt guide hole 14 according to this tensile force, the shoulder belt 3 can be supported at the anchor portion without being twisted.

Further, in the above embodiment, since the extending portion 7a that covers the upper inner wall surface of the center pillar 18 is formed at the front end of the trim member 7 attached to the rear door 6, the center pillar 18
There is no need to provide a separate pillar trim material to cover the upper part of the pillar trim material, which reduces the number of parts and the number of assembly steps. It is possible to prevent this from occurring and reduce the number to one. Therefore, it is possible to obtain a sense of continuity in the interior materials, and this has the effect of improving the interior design. Further, since the extending portion 7a of the trim member 7 is formed only in the upper half and not in the lower half, when the rear door 6 is opened, the lower half of the trim member 7 is directed toward the interior side. There is no protrusion, and therefore, even when the extending portion 7a is formed, ease of getting on and off the vehicle can be ensured.

Further, in the above embodiment, the belt retractor 15 is installed in the vertically intermediate portion of the center pillar 18, and the trim material 7
However, as shown in FIGS. 7(A) and 7(B), the belt retractor 15 is installed at the lower part of the center pillar 18, and the side sill 17 is The installation portion of the belt retractor 15 may be covered by the upwardly extending portion 19a of the trim member 19. Also, Fig. 8(A), (
As shown in B), a belt retractor 15 is installed on the inner panel of the side sill 17 located in front of the center pillar 18.
I! Or, as shown in FIGS. 9A and 9B, the side sill 17 located on the rear side of the center pillar 18
The belt retractor 15 is installed on the inner panel of the side sill 17, and the downward extending portion 19b is formed on the trim material 19 of the side sill 17.
The installation of the belt retractor 15 may be covered by the above.

Further, in the embodiment described above, the shoulder belt 3 is extended rearward from the support part of the seat back 4 and guided downward through the anchor member 10, and the end of the shoulder belt 3 is connected to the rear door 6.
The shoulder belt 3 is wound around a belt retractor attached to a vehicle body side member such as the center pillar 18 or side sill 17 located near the support part 5.
, and its end is wrapped around a belt retractor attached to the seat back 4 or seat cushion of the driver's seat 1, and one end is fixed to the support part 5, and the other end is attached to the rear of the vehicle body. A support belt member extending to the side is provided, and this support belt member is guided downward from the anchor member 10, and its end is connected to the rear door 6.
It may be configured to be wound around a belt retractor 15 attached to a vehicle body side member located near the belt.

[Effects of the Invention] As explained above, the present invention is capable of attaching a belt member such as a shoulder belt extending toward the rear of the vehicle body from a support provided at the shoulder of the seatback of the front seat to the front end of the rear door. Since the belt member is configured to be guided downward through the provided anchor member, it is possible to prevent the belt member from being exposed to the outside through the window part, improving lateral visibility and livability. There is an advantage that the belt member can be installed in an appropriate state while maintaining the appearance and open feeling characteristic of top cars and the like.

In addition, since the end of the belt member guided downward through the anchor member is wound around the belt retractor attached to the vehicle body side member located near the rear door, the belt retractor is attached to the rear door. In this way, it is possible to prevent the locking mechanism of the belt retractor from malfunctioning due to the influence of the acceleration that is applied during the opening and closing operations of the rear door, and to ensure that the belt retractor always operates in a proper state.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the automobile seat belt device according to the present invention, Fig. 2 is an exploded perspective view showing the structure of the anchor portion of the belt member, and Fig. 3 is the structure of the step portion of the belt retractor. FIG. 4 is a perspective view showing how the belt member is installed in normal conditions. FIG. 5 is a perspective view showing how the belt member is installed when the rear door is opened. FIG. FIG. 7(A) is a perspective view showing the installed state of the belt member during reclining. (8) to FIG. 9 (A) and (B) are perspective views showing other embodiments of the present invention, respectively. DESCRIPTION OF SYMBOLS 1... Front seat (driver's seat), 3... Shoulder belt (belt member), 4... Seat back, 5... Support part, 6...
...Rear door, 10...Anchor member, 15...Belt retractor, 17...Side sill (II body side member)
, 18... Center pillar (vehicle body side member). Patent applicant Mazda Co., Ltd. Agent
Patent Attorney Etsushi Kotani Patent Attorney Chief 1) 1 Patent Attorney Takao Ito Figure 4 Figure 7 (B) Figure 8 (B) Figure 9 (B)

Claims (1)

[Scope of Claims] 1. A seat belt device for protecting an occupant in a front seat, which includes a belt member extending toward the rear of a vehicle body from a support provided at the shoulder of a seat back of the front seat; The belt retractor is provided with an anchor member that supports the belt member at the front end of the rear door, and a belt retractor around which the end of the belt member guided downward through the anchor member is wound, and the belt retractor is located near the front end of the rear door. A seat belt device for an automobile, characterized in that it is attached to a vehicle body side member. 2. A seat belt device that protects occupants in the front seats, which includes a belt member that extends toward the rear of the vehicle from a support provided on the shoulder of the seat back of the front seat, and a belt that extends from the front end of the rear door. The belt retractor is equipped with an anchor member supported at the front end of the rear door, and a belt retractor around which the end of the belt member guided downward through the anchor member is wrapped, and the belt retractor is attached to a center pillar located near the front end of the rear door. An automobile seat belt device characterized by: 3. A seat belt device that protects occupants in the front seats, which includes a belt member extending toward the rear of the vehicle from a support provided on the shoulder of the seat back of the front seat, and a belt member extending from the front end of the rear door. and a belt retractor around which the end of the belt member guided downward through the anchor member is wound, and the belt retractor is attached to a side sill located near the front end of the rear door. An automobile seat belt device featuring: