JPH0125085Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a passive belt device for an automobile.

In general, passive belt systems for automobiles allow the seat belt to be naturally attached to the passenger's body when the passenger enters the vehicle interior and sits on the seat. It is necessary to support the seat belt at the center of the vehicle interior floor and the other end at the top of the rear end of the door, and to install a retractor device on either side to retract the seat belt, but this retractor device is installed on the center side of the vehicle interior floor. If this is done, the seat belt will rub against the chest of the passenger when the passenger sits in the seat, resulting in a problem that the seat belt will not feel very comfortable when worn.

Conventionally, there is a passive belt device that solves this problem by installing a retractor device at the top of the rear end of the door.
-84725), in such devices, vibrations when opening and closing the door are transmitted to the retractor device, which may cause the belt lock mechanism in the retractor device, which is designed to be activated in the event of a car collision, to malfunction. As a result, there are drawbacks such as seatbelts remaining loose or doors not opening halfway.

This idea was made in view of the above-mentioned conventional problems.One end of the seat belt is attached to the vehicle body in the center of the passenger compartment, and the other end is attached to the vehicle body in front of the door.It is a retractor having a belt lock mechanism. By allowing the device to wind it up through the first support at the top of the rear end of the door and the second support inside the door, it is possible to improve the wearing comfort with a simple structure, and to prevent malfunction of the belt lock mechanism of the retractor device. It is an object of the present invention to provide a passive belt device for an automobile that can prevent such problems.

An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show a passive belt device for an automobile according to an embodiment of the present invention. In the figure, 1 is a vehicle body, and an opening 2 for a door is formed in the side surface of the vehicle body 1, and the front peripheral edge of the opening 2 has a front pillar 3 and a substantially rectangular cross section that continues below the front pillar 3. The hinge pillar 4 has a hinge pillar outer 5.
and a hinge pillar inner 6.

A door 9 consisting of an inner panel 7 and an outer panel 8 is arranged behind the hinge pillar 4, and the door 9 has a hinge bracket 10 fixed to the front end surface of the inner panel 7 and a hinge bracket fixed to the outer surface of the pillar outer 5. 11 so that it can be opened and closed freely.
A pillar trim 12 is fixed to the surface of the inner hinge pillar 6, and a door trim 13 is fixed to the surface of the inner panel 7 of the door 9. In addition, the front seat 1 is placed on the floor panel 14 of the vehicle body 1.
5 is disposed, and a tunnel portion 16 is formed approximately in the center of the floor panel 14 in the longitudinal direction of the vehicle body. In the figure, 17 is a fender panel.

The front seat 15 is equipped with a passive belt device 1.
8 are arranged. This passive belt device 1
8, 19 is a seat belt, a metal fitting 20 is fixed to one end of the seat belt 19, and the metal fitting 20 is attached to a floor panel 1 which is a vehicle body in the center of the vehicle interior.
It is detachably engaged with a buckle 21 attached to the side surface of the tunnel portion 16 of No. 4. The part continuous to one end of the seat belt 19 passes through a guide ring first support 22 attached to the upper part of the sash 9a at the rear end of the door 9 and extends downward, and its tip is attached to the inner panel 7 of the door 9 vertically. The guide ring passes through a space formed by a belt guide groove (not shown) formed in the direction of the belt and the door trim 13 and reaches a second guide ring support 23 in the door 9. The seat belt 19 that has passed through the guide ring 23 is inserted through the space formed by the belt guide groove 7a formed in the front-rear direction in the inner panel 7 of the door 9 and the door trim 13 from the rear end of the door 9 to the front end. ,
It extends into the hinge pillar 4, which is the vehicle body in front of the door, through a grommet 24 installed in a through hole 4a on the rear end surface of the hinge pillar 4. Further, a retractor device 25 having a belt lock mechanism inside is fixed to the pillar inner 6 of the hinge pillar 4, and a belt winding opening 25a of the retractor device 25 passes through the opening 4b of the hinge pillar 4 and projects into the hinge pillar 4. The other end of the seat belt 19 extends into the retractor device 25 via a belt winding opening 25a.

In the device of this embodiment as described above, the seat belt passes through the guide ring at the top of the rear end of the door and the guide ring inside the door, and further passes through the belt guide structure of the inner panel, and the other end is inserted into the front part of the door. Since the seat belt is retracted by a retractor device attached to the vehicle body, the seat belt moves smoothly and the door can be opened and closed smoothly.

In addition, with this device, the seat belt expands and contracts behind the occupant's shoulders when the occupant gets on and off the vehicle, so the seat belt hardly rubs the occupant's chest and does not deteriorate the feeling of wearing the seat belt.
In addition, the part of the seat belt that comes into contact with the occupant's chest and other areas is approximately constant, and it is desirable that the part that makes contact with the passenger's body be a wide belt.
A narrow belt can be used in the portion that does not come into contact with the occupant's body, and therefore the guide ring can be made smaller.

Furthermore, in this device, the retractor device with a belt lock mechanism is attached to the vehicle body in front of the door, so even if vibration occurs when the door is opened or closed, this vibration is hardly transmitted to the retractor device, and therefore the inside of the retractor device is The belt lock mechanism will not malfunction.

In addition, with this device, the metal fitting at one end of the seat belt is removably attached to the buckle in the center of the vehicle floor, so for example, if the car collides with an obstacle, the belt lock mechanism of the retractor device is activated and the seat belt is tightened. Even if the seat is locked, the user can immediately remove the seat belt and escape from the vehicle by simply releasing the engagement between the metal fitting and the buckle.

In the above embodiment, one end of the seat belt was attached to the tunnel part of the floor panel.
One end of this seatbelt may be attached to the lower part of the side of the seat so that it is indirectly attached to the vehicle body. In this case, when adjusting the front and back position of the seat, the seatbelt attachment position also moves, so it does not affect the occupant's body. On the other hand, the position of the seat belt does not shift. Further, in the above embodiment, one end of the seat belt is detachably attached to the center of the vehicle interior floor, but one end of the seat belt may be fixed to the center of the vehicle interior floor.

As described above, according to the passive belt device for an automobile according to the present invention, one end of the seat belt is attached to the vehicle body in the center of the vehicle interior, and the other end is attached to the vehicle body in front of the door by a retractor device having a belt lock mechanism. Since the seat belt is wound through the first support at the upper rear end of the door and the second support inside the door, it is possible to improve the feel of the seat belt and also to prevent malfunction of the belt lock mechanism of the retractor device. be.

[Brief explanation of the drawing]

FIG. 1 is a partial perspective view of an automobile having a passive belt device according to an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a partial plan view of the device. 4... Hinge pillar (body in front of the door), 9...
...Door, 16...Tunnel part (vehicle body in the center of the vehicle interior), 18...Passive belt device, 19...Seat belt, 22, 23...Guide ring (first, second support), 25... Retractor device.

Claims (1)

[Scope of utility model registration request] A seat belt, one end of which is supported by the vehicle body in the center of the vehicle interior, passes through a first support attached to a sash at the top of the rear end of the door and is folded downward, and the end of the seat belt is folded downward. The seat belt is inserted through the support device No. 2, then folded back to the front of the door and extends from the rear of the door to the front, and the other end of this seat belt is retracted by a retractor device attached to the vehicle body located in front of the door. A passive belt device for an automobile, characterized in that the retractor device has a belt locking mechanism operated by an impact load therein.