JPH0715801Y2 - Seatbelt device for automobile - Google Patents

Description

[Detailed Description of the Invention] "Industrial field of application" The present invention is a two-door type vehicle in which the seat back of the front seat is tilted forward to get in and out of the rear seat in order to widen the entrance to the rear seat. The present invention relates to an automobile seat belt device for a front seat of a vehicle.

[Background of the Invention] In order to improve the wearing comfort and safety of the seat belt, for example, an automobile seat belt device as shown in FIGS.

That is, the front anchor 2 is attached to the vehicle body floor 1 so as to be movable back and forth, and the webbing 3 fed from a winding device (not shown) is attached to the upper part of the center pillar 4 to the relay anchor 5.
The tongue plate 7 is attached to the middle portion of the retracted webbing 3 and is engaged with and disengaged from the buckle 6 connected to the side portion of the seat cushion 2a opposite to the door. The middle portion of the webbing 3 is folded back so that its tip extends toward the side of the seat cushion 2a on the door side and is connected to the side.

When the front seat 2 moves back and forth, the front end portion and the intermediate portion of the webbing 3 also move back and forth integrally. Thereby, regardless of the front-back movement of the front seat 2, the webbing 3 restrains the upper torso and waist of the seated person in an ideal state with almost no change, so that the wearability can be improved, By disposing the buckle 6 and the like at an appropriate position, it is possible to suppress the pressure on the abdomen and the like of the seated person in the event of a collision or the like, and improve safety.

[Problems to be solved by the invention] However, in such an automobile seat belt device, when used in a two-door type vehicle, the seat back 2b of the front seat 2 is tilted forward when getting in and out of the rear seats. By doing
The entrance / exit is wide. On the other hand, there is a problem that the webbing 3 obliquely blocks the entrance and exit from the relay anchor 5 to the side of the seat cushion 2a on the door side, and there is no point in expanding the entrance and exit.

On the other hand, for example, a buckle is provided on the side portion of the seat cushion 2a on the door side, and a tongue plate that can be engaged with and disengaged from the buckle is fixed to the tip of the webbing 3 so that the buckle can be used when getting in and out of a rear seat. It is conceivable that the engagement with the tongue plate is disengaged, and the webbing 3 that obliquely blocks is retracted from the entrance / exit. However, each time you get on or off,
There is a problem in that the back and the tongue plate have to be separated from each other, and the operation is troublesome and time-consuming.

The present invention has been made by paying attention to the problems of the above-described technology, and it is extremely easy to automatically remove the webbing obliquely blocking the entrance / exit from the entrance / exit in conjunction with the boarding / alighting operation. It is an object of the present invention to provide an automobile seat belt device that can get on and off.

[Means for Solving the Problems] The gist of the present invention for achieving such an object is to provide a relay anchor in which a webbing fed from a winding device provided on a vehicle body is arranged above an edge of a door opening. The auxiliary buckle and the secondary tongue plate are attached to the tip of the webbing that is drawn into the vehicle interior through An automobile seat in which one of a main buckle and a main tongue plate operated by a seated person is attached to the middle portion of the webbing that is pulled into the vehicle interior, and the other is attached to the front seat side opposite to the door. A seat belt device for an automobile, characterized in that the belt device comprises at least a disengagement mechanism for disengaging the sub buckle and the sub tongue plate in conjunction with forward movement of the seat back. To.

"Operation" Before the operation to get in and out of the rear seat, the main buckle is disengaged from the main tongue plate, and the sub tongue plate at the tip of the webbing pulled out from the relay anchor into the passenger compartment is the front seat on the door side. It is in a state of being engaged with the auxiliary buckle that is fixed to the side portion. That is, the webbing is in a state of being slid across the relay anchor side and the door side front seat side.

In order to get in and out of the rear seats, if you move the seat back of the front seat forward,
Wider access to the rear seats. At the same time, the disengagement mechanism disengages the sub buckle from the sub tongue plate, the intermediate part of the webbing is further wound up by the winding device, and the leading end side of the webbing is pulled toward the relay anchor side so that the webbing retracts from the entrance / exit port. Become.

As a result, it is possible to easily get in and out of the rear seat from the entrance and exit without the webbing getting in the way.

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

1 to 7 show an embodiment of the present invention.

As shown in FIGS. 1, 2, and 7, a front seat 20 is mounted on a vehicle body floor 10 of a two-door type vehicle so as to be movable back and forth via a pair of seat slide devices 11. Front seat
A seat back 22 of 20 is pivotally attached to a seat cushion 24 via a reclining mechanism 23 so as to be tilted forward so as to widen an entrance / exit to a rear seat (not shown).

At a position below the center pillar 12 which is a part of the peripheral edge of the door opening, a winding device 40 is provided that can wind up the webbing 30 and store the webbing 30, and can appropriately feed the webbing 30. The webbing 30 delivered from the winding device 40 extends upward in the center pillar 12, is taken out into the vehicle interior at an appropriate position, and is pivotably supported on the upper part of the center pillar 12 so as to be swingable. It is folded back and pulled into the passenger compartment.

A main tongue plate 50 that can be engaged with and disengaged from a main buckle 55 that is detachably operated by a seated person is attached to an intermediate portion 32 of the webbing 30 that is pulled into the vehicle interior. The base end portion of the main buckle 55 is extended to the side portion 25 of the seat cushion 24 on the side opposite to the door 15, and is fixed to the seat side rail 11a side of the seat slide device 11 so as to move integrally with the front seat 20. Has been done.

A tip portion 34 of the webbing 30 extends to the side portion 26 of the seat cushion 24 on the door 15 side, and a sub tongue plate 60 is attached to the tip portion 34.

The base end portion of the sub buckle 65 that can be engaged with and disengaged from the sub tongue plate 60 is extended to the side portion 26 of the seat cushion 24 on the door 15 side, and the seat slide device 11 of the seat slide device 11 is moved so as to move integrally with the front seat 20. It is fixed to the seat side rail 11a side.

As shown in FIG. 4, the base housing of the sub buckle 65.
A lock plate 67 is swingably supported in the 66, and is locked against the biasing force of the return spring 68 in order to disengage the lock plate 67 and the tongue plate 60 (not shown) inserted from the insertion opening. A release button 69 for pushing the plate 67 is provided.

The lock plate 67 is arranged in the base housing 66 so as to face the back surface of the lock plate 67 and is excited when energized.
A solenoid 62 is provided which pulls against the urging force of the return spring 68 and swings to the release position.

As shown in FIG. 5, the base member 27 of the reclining mechanism 23 includes a swing arm member fixed to the seat back 22.
A forward tilt detection switch 29 for detecting the forward tilt movement of 28 is provided.

As shown in FIG. 3, the door 15 is located at the lower edge of the opening edge of the door 15.
A door switch 16 for detecting the open / closed state of 15 is provided.

As shown in FIG. 6, the door 15 opens and the door switch 16
Is turned on, and when the seat back 22 is tilted forward and the switch 29 for tilt-forward detection is turned on, the solenoid 62 is energized and excited to disengage the sub buckle 65 from the sub tongue plate 60. The switch 16, the switch 29 for forward tilt detection, the solenoid 62, and the power source 70 are connected to each other.

That is, the door switch 16, the forward tilt detection switch 29,
The solenoid 62, the power source 70, and the like constitute a disengagement mechanism.

Next, the operation will be described.

In the mounted state shown in FIGS. 2 and 7, the door 15
Since the door is closed and the seat back 22 is in the standing position, both the door switch 16 and the switch 29 for detecting the tilt-down are in the off state.

When the seated person releases the main buckle 55 and the main tongue plate 50, the intermediate portion 32 of the webbing 30 is wound around the winding device 40 via the relay anchor 13. Since the sub buckle 65 and the sub tongue plate 60 are in the engaged state, the webbing 30 is pulled out from the relay anchor 13 and the leading end portion 34 thereof is extended to the side portion 26 of the seat cushion 24. That is, as shown in FIG. 1, the webbing 30 is in a state of being laid across the relay anchor 13 side and the side portion 26 of the seat cushion 24 at an angle.

Next, when the door 15 is opened and brought into the state shown in FIG. 1, the door switch 16 is turned on. And the switch 29 for forward tilt detection
Is still off, the solenoid 62 does not energize.

When the seat back 22 of the front seat 20 is moved forward to get in and out of the rear seats, the entrance to the rear seats is widened. At the same time, the switch 29 for forward tilt detection is turned on. When the switch 29 for detecting the tilt-up is turned on, the door switch 16 is turned on, so the solenoid 62
Is energized and excited. Thereby, the lock plate 67
Is attracted to the solenoid 62 and swings downward in FIG. 4, so that the sub buckle 65 and the sub tongue plate 60 are disengaged.

At the same time, the webbing 30 is further wound up by the winding device 40, and the tip portion 34 of the webbing 30 is pulled toward the relay anchor 13 side as shown in FIG. As a result, the tip end portion 34 of the webbing 30 comes to follow the inside of the center pillar 12 and comes back from the entrance / exit of the rear seat.

As a result, the webbing 30 can easily get in and out of the rear seats without getting in the way.

In the above embodiment, the engagement between the sub buckle 65 and the sub tongue plate 60 is released when both the seat back forward movement and the door opening are detected. The engagement may be released only by the tilting operation.

Further, although each tongue plate is fixed to the webbing and the buckle is fixed to the seat side, the tongue plate may be fixed to the seat side and the buckle may be fixed to the webbing side in reverse order.

[Advantage of Invention] According to the seat belt device for an automobile of the present invention, the webbing is automatically withdrawn from the entrance / exit in conjunction with the operation of getting on / off the rear seat. You can easily get on and off at the entrance.

[Brief description of drawings]

1 to 7 show an embodiment of the present invention, wherein FIG. 1 is a perspective view of a vehicle seat belt device, FIG. 2 is a perspective view of the same seated state, and FIG. FIG. 4 is a sectional view of a main part of the sub buckle, FIG. 5 is a front view of the reclining mechanism, FIG. 6 is a control circuit diagram of the disengagement mechanism, and FIG. 7 is a seat belt device for an automobile. A front view, FIGS. 8 and 9 show a technical example to be compared with the present invention. FIG. 8 is a side view of an automobile seat belt device, and FIG. 9 is a front view of the same. 10 ... Body floor, 12 ... Center pillar 13 ... Relay anchor, 16 ... Door switch 20 ... Front seat, 22 ... Seat back 23 ... Reclining mechanism 24 ... Seat cushion 25 ... Seat cushion side 26 ... Seat cushion side 29 ... switch for forward tilt detection 30 ... webbing, 32 ... middle part of webbing 34 ... webbing tip, 40 ... winding device 50 ... main tongue plate, 55 ... main buckle 60 ... sub-tongue plate, 62 ... solenoid 65 ... Deputy buckle, 70 ... Power supply

Claims (1)

[Scope of utility model registration request] 1. A webbing drawn out from a winding device provided on a vehicle body is drawn into a vehicle interior through a relay anchor provided at an upper portion of a peripheral edge of a door opening, and a tip of the webbing drawn into the vehicle interior is One of the sub buckle and the sub tongue plate is attached, and the other that can be engaged and disengaged with the one is attached to the side portion of the front seat on the door side. In a seat belt device for an automobile in which one of a main buckle and a main tongue plate is attached, and the other is attached to a side portion of a front seat opposite to a door, at least in conjunction with forward movement of the seat back, the sub buckle and the A vehicle seatbelt device comprising a disengagement mechanism that disengages from the sub tongue plate.