JPH076033Y2 - Support structure for vehicle seat belt drive member - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a so-called passive seat belt device capable of automatically attaching a seat belt to an occupant after the occupant is seated. The present invention relates to a support structure for a drive member included in an apparatus.

(Prior Art) Currently, there are widely used three-point seat belt devices installed in the passenger compartment for the purpose of restraining the occupant on the seat so that the occupant does not jump out of the vehicle in the event of a vehicle collision. Has been adopted. However, the three-point seat belt device has a problem that it requires a manual wearing and releasing operation, and the operation is complicated. Then, as a device configured to solve the problem, a passive seat belt device including a motor and capable of automatically releasing and automatically releasing the seat belt by its driving force has been attracting attention. This passive seat belt device is
As shown in Japanese Patent Laid-Open No. 58-54276, the inner side of a seat belt for restraining an occupant is engaged with a vehicle body floor, and the outer side is locked with a rail arranged along the roof side. Side end is movable on the rail, and a wire driven by a motor connected to the vehicle power source is connected to the outer side end to move in the vehicle front-rear direction in conjunction with opening and closing of the door. It is configured to come into contact with and separate from the vehicle seat. Then, in such a passive seat belt device, the load generated on the seat belt due to the forward movement of the occupant during a vehicle collision or the like is applied to the seat belt support position, that is, the drive member including the motor. It will be. Then, as shown in FIG.
The drive member a, which is the load acting point, is bolted to the vehicle body inner panel side such as the front pillar b at a plurality of points. In FIG. 6, c is a floor panel, and e is a cable for transmitting the driving force of the motor d to the seat belt.

(Problems to be solved by the invention) However, in the passive seat belt device as described above, the drive member is attached only to one member of the vehicle body inner panel formed thin for the purpose of weight reduction of the vehicle body. Therefore, the load at the time of a vehicle collision is
When the input load is large, the inner panel is deformed and the motor and its peripheral members are damaged due to the deformation, and the supporting rigidity of the drive member is low. In addition, there is a problem that the restraint of the occupant is insufficient.

Then, this invention aims at obtaining the structure which improves restraint of an occupant by distributing the load which acts on a drive member to a wide area | region of a vehicle body.

(Means for Solving the Problems) In view of the above points, the present invention provides a bracket to which auxiliary devices are fixed, attached to the periphery of an opening formed in an inner panel of a vehicle body, the bracket and the inner panel. The seatbelt driving member is attached so as to straddle the inward side surface of the vehicle body of the present invention.

(Operation) The operation of the present invention having the above-mentioned configuration is that the seat belt drive member is attached so as to extend over the inner side surface of the vehicle body of the bracket and the inner panel. It is efficiently distributed to the bracket and inner panel to suppress deformation of the inner panel,
The deformation prevents damage to the motor and its peripheral members, and thus improves the restraint of the occupant.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 2 shows a vehicle 1 equipped with a passive seat belt device according to the present invention.
Shown in the figure. Thus, the seat belt 2 for restraining the occupant
The inner side end 2a of the seat belt 2 due to the urging force.
It is engaged with the vehicle body floor panel 1a via a winding device 3 for winding. On the other hand, the outer side end portion 2b of the seat belt 2
Is attached to a buckle 5 that slides on a rail 4 extending in the vehicle front-rear direction along the periphery of the door opening 1b, and the buckle 5 can be freely wound by driving a passive motor 6 described later. Connected to the cable 7. Therefore, the buckle 5 accompanying the driving of the passive motor 6
The seat belt 2 is automatically attached (solid line in FIG. 1) and released (phantom line in FIG. 1) by the movement of.

Each member will be described in detail below.

The winding device 3 provided near the inner end 2a of the seat belt 2 is attached to a seat side portion at a substantially central portion in the vehicle left-right direction, and a belt winding drum (not shown) is provided therein. In addition, a coil spring is attached to the rotary shaft of the drum, and the drum causes the drum to wind in the belt (direction of arrow A in FIG. 1).
It is a well-known thing that is provided with a biasing force.

The buckle 5 to which the outer end 2b of the seat belt 2 is attached is slidably locked to a rail 4 having a groove on one surface and extending in the vehicle body front-rear direction. A cable 7 extending from the passive motor 6 is attached to the end. On the other hand, a wire (not shown) extended from a winding device 4a provided at the front end of the rail 4 on the vehicle body side is connected to the front end of the winding device 4a.
The winding force of is transmitted to the buckle 5 via the wire, so that the buckle 5 is always given a biasing force in the seat belt releasing direction (direction of arrow B in FIG. 1). Therefore, the position of the seat belt 2 is naturally determined by the amount of winding and operating of the cable 7 driven by the passive motor 6.

The passive motor 6 is driven by the control of a passive motor control box (hereinafter referred to as PM box) 10 which will be described later, in conjunction with opening and closing of the door, and a winding roller (not shown) for winding the cable 7. A cover 9 which is connected and covers the roller is provided with three mounting brackets 9a, 9b and 9c which extend radially from the cover 9. Further, as shown in FIGS. 3 to 5, an opening 12 is formed in the inner panel 1c on the vehicle body side for accommodating the PM box 10, the audio amplifier 11 and the like between the inner panel 1c and the outer panel 1d. It is set up. The PM box 10 and the audio amplifier 11 are bolted to the outer side surface of the vehicle body of a plate-shaped unit mounting bracket 13 which is bolted to the inner panel 1c at a plurality of points. Therefore, the rigidity of the unit mounting bracket 13 is improved by mounting the PM box 10 and the audio amplifier 11.

The feature of the present invention in the peripheral portion of the passive motor 6 configured as described above is that the cover 9 is attached to the unit mounting bracket 13 and the inner panel by the mounting brackets 9a, 9b and 9c protruding from the cover 9. It is installed over 1c. That is, as shown in FIG. 3, two of the mounting brackets 9a, 9b, 9c projecting from three points are bolted to the inner panel 1c, and one 9c is bolted to the unit mounting bracket 13. It is what In this embodiment, the bolting position of one mounting bracket 9b is also used as the bolting position of the unit mounting bracket 13. Reference numeral 14 in FIG. 3 is an opening for guiding the cable 7 from the door trim 1e into the passenger compartment.

According to the support structure of the seat belt drive member configured as described above, the seat belt 2 can be used in a vehicle collision or the like.
The load generated on the passive motor 6 acts on the peripheral portion of the passive motor 6 via the buckle 5 and the cable 7, and the load is applied to the inner panel 1c and the inner bracket 1c via the mounting brackets 9a, 9b, 9c protruding from the cover 9. Unit mounting bracket 13
Are efficiently dispersed in a wide area, and deformation of the periphery of the area and deterioration of restraint of an occupant are suppressed. Further, since the PM box 10 and the audio amplifier 11 are attached to the unit mounting bracket 13, the rigidity is improved. Therefore, by dispersing the load there, the dispersion efficiency is improved. ing. As another effect, the vibration of the passive motor body is reduced, and further, since the load can be distributed over a wide range without lengthening the mounting brackets 9a, 9b, 9c, the strength of the mounting bracket is secured, and the crack This is a configuration in which the occurrence of

It should be noted that this configuration is not limited to the passive seat belt device and can be applied to a three-point seat belt device.

(Effect of the Invention) As described above, according to the present invention, the seatbelt driving member is attached so as to straddle the inner side surface of the bracket and the inner panel, so that a load is input at the time of a collision of the vehicle. , The load is efficiently distributed to the bracket and the inner panel to suppress the deformation of the inner panel, and the deformation prevents the seat belt drive member and its peripheral members from being damaged, which in turn restrains the occupant. This has the effect of being improved and making the seat belt device highly practical. Further, as another effect, the vibration of the seat belt drive member can be suppressed, and the strength of the member for attaching the drive member to the vehicle body side can be secured.

[Brief description of drawings]

1 to 5 show an embodiment of the present invention, FIG. 1 is a schematic view of a vehicle interior, FIG. 2 is a perspective view of a vehicle, FIG. 3 is a view around a passive motor support portion, and FIG. The drawing is a vertical sectional view taken along the line IV-IV of FIG. 2, and FIG. 5 is an exploded view of the periphery of the passive motor support portion. FIG. 6 is a perspective view around a conventional passive motor support portion. 1c Inner panel, 6 ... Passive motor, 10 ... Passive motor control box, 11 ... Audio amplifier, 13 ... Unit mounting bracket.

Claims (1)

[Scope of utility model registration request] A bracket having an auxiliary device fixed to a side surface is attached to a peripheral edge of an opening formed in an inner panel of a vehicle body, and a seat belt is driven so as to extend over the bracket and the inner side surface of the vehicle body of the inner panel. A support structure for a vehicle seat belt drive member, wherein a member is attached.