JPH0741821B2 - Seat belt device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] In a bench type seat provided with a rotatable armrest of an automobile, an inner buckle of a seat belt is automatically protruded to a forward tilted position or a seat back. The present invention relates to an improvement of a seat belt device that can be stored inside.

[Conventional technology]

As for the inner buckle of the seat belt in the bucket seat, the separate seat or the semi-separate seat of the conventional automobile, the belt lock equipped with the buckle or the buckle dang proposed by Japanese Utility Model Laid-Open No. 58-163344 is installed in the center part of the rear seat. It is known that the rear seat on which the rear seat is swung is supported swingably on the center floor pan located at, and the rear seat on which this belt lock is located has an opening for storing the belt lock. The center does not have an armrest.

Further, in the seat center shown in FIGS. 5 and 6 having a rotatable armrest, as in the one disclosed in Japanese Patent Laid-Open No. 59-213545, a recess provided in the front surface of the backrest. In the case where the belt clasp member 15 is moved from the position 14 into the use position against the spring force, the recess 14 is provided with the backrest 2
Is provided only on the side surface 16 of the armrest 1 which can be swung outwards from, and forms a pocket 18 with an adjacent backrest wall 17,
The bottom area 19 of this pocket 18 is designed as a deflecting surface so that when the outer armrest 1 of the backrest 2 is swung outward, the belt clasp member 15 housed therein is moved to its use position. There are things that are characterized.

[Problems to be solved by the invention]

However, all of the above-mentioned conventional devices have the following problems.

That is, the above-mentioned No. Shokai 58-163344 is simply stored manually in the storage opening provided in the seat back when the buckle is not used, and when the buckle is used, it is necessary to manually take it out again. There was the inconvenience of forgetting and sitting on the buckle.

Further, in the one disclosed in JP-A-59-213545,
When the armrest is tilted forward, it is configured to push out the belt clasp member in the bottom range of the pockets provided on both sides of the armrest, but at the time of this rotation, the center of rotation of the armrest and the belt clasp member. , The tip of the belt clasp member interferes with the tip of the bottom area (when it is moved forward) when the deflecting surface of the recess in the bottom area covers the belt clasp member, and the belt clasp member projects smoothly. There was a problem not to do.

Furthermore, when returning the armrest to the storage part of the seat back,
There is a drawback that the head portion of the belt clasp member is sandwiched between the side surface of the armrest and the storage portion and cannot be accommodated easily.

The present invention has been made in view of such circumstances, and it is possible to automatically and surely perform the inner buckle in and out of a bench type seat provided with a rotatable armrest of a vehicle as the armrest rotates. It is an object of the present invention to provide a seat belt device having such a structure.

[Means for solving problems]

In order to achieve the above object, the present invention provides an inner buckle of an inner side seat belt provided on both sides of a rotatable armrest in a vehicle bench type seat, which is attached to a support member fixed to the floor side. In a seat belt device that is movably supported, rotation of a link that is linked with a rod member that is fixed to the rotation shaft of the armrest and that is rotatably supported by the rotation shaft of the inner buckle. The inner buckle is configured to be pushed out and rotated to the forward tilted position.

Further, a torsion spring is provided between the link and the inner buckle, and the link rotates in accordance with the rotation of the armrest, and the forward rotation of the link pushes out the inner buckle to the forward tilt position. The inner buckle is rotated to the upright position via the torsion spring by the rearward rotation of the link.

[Action]

Since the present invention has the above-mentioned configuration, in the first invention, when the armrest is tilted forward from the position stored in the seat back in the bench type seat to bring it into a use state, the armrest is rotated. The rod member fixed to the shaft rotates forward together with the armrest, and the links linked to the rod member also rotate forward simultaneously.

At this time, the inner buckle is pushed forward by the link and pivots to the forward tilt position about the pivot axis of the support member.

On the contrary, when the armrest is stored in the seat back from the state of use, the member fixed to the pivot shaft of the armrest rotates rearward, and the link is linked to this, so the link is also rearward. However, the inner buckle is left in the forward tilted position.

When returning the inner buckle to the standing position, the occupant may rotate it with his / her finger.

Next, in the second invention, since the torsion spring is provided between the link and the inner buckle in the first invention, when the armrest is tilted forward from the position where the armrest is stored in the seatback to be in use, , The same operation as the first aspect of the invention, but on the contrary, when the armrest is stored in the seat back from the use state, the link also pivots backward as described above by pivoting the armrest backward. However, at this time, the inner buckle is automatically pulled from the forward tilted position to the standing position by being pulled by the torsion spring.

〔Example〕

Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 4 show an embodiment of the present invention. In the embodiment of the first invention shown in FIG. 1, an armrest 1 is stored in a seat back 2 of a bench type seat 3 of a vehicle. A recess 14 is provided at the center.

The armrest 1 is provided so as to be rotatable with respect to the seat back 2 by a rotation axis A from a stored position to a use state of being tilted forward. The inner buckles 8 and 8 are provided on the seat back 2 and the seat cushion 3 on both sides of the armrest 1, respectively.
Pockets 2a and 3a for storing 8 are provided. The front portion of the pocket 3a of the seat cushion 3 is an inclined surface 3c that supports the forwardly inclined position of the inner buckle 8.

A rod member 4 is fixedly mounted on a rotating shaft A of the armrest 1, and the rod member 4 is rotatably supported by a shaft B on which an inner buckle 8 is rotatable via an intermediate rod body 5. Is connected to the linked link 6.

The shaft B is provided at the other end of the support member 11 whose one end is fixed to the floor side 10 of the vehicle by a bracket 12, and the base of the inner buckle 8 and the link 6 are respectively rotated with respect to the shaft B. It is mounted freely.

The link 7 has a flange 7 that pushes out a flange 9 provided at the base of the inner buckle 8 when rotating forward.
Is projected.

The rod member 4, the intermediate rod 5 and the link 6 are linked together, but the link between the intermediate rod 5 and the link 6 is linked to a long hole 15 provided in the lower portion of the intermediate rod 5 in order to make the rotational movement smooth. Pin 16 of is inserted.

Next, the operation of this embodiment will be described. Recess 14 for storing armrest 1
When tilted from the front to the position 1'for use, the armrest 1
The rod member 4 fixed to the rotation axis A is also rotated forward of the vehicle. By the rotation of the rod member 4, the link 6 is rotated forward via the intermediate rod body 5, and the flange 7 provided on the link 6 is provided with the flange 9 provided on the base of the inner buckle 8 so as to project.
Is pushed forward to move the inner buckle 8 to the forward tilt position 8 '. Then, the inner buckle 8 is held at its forwardly inclined position 8'by the forwardly inclined surface 3c of the pocket 3a provided in the seat cushion 3.

In this embodiment, when not in use, the armrest 1 stands up and the storage recess
Even if the inner buckle 8'in the forward tilted position is held in the forward tilted position even when it is stored in the seat 14, the seat belt can be worn as it is.

The inner buckle can be stored in the storage pocket 2a of the seat back 2 by the passenger with his / her finger.

Therefore, in this embodiment, the link 6 is attached to the rotation axis A of the armrest 1.
Since the rod member 4 that operates the is fixed coaxially, the turning force when the armrest 1 is tilted forward is smoothly transmitted to the link 6, and the inner buckle 8 can be easily moved to the forward tilted position.

In addition, the rotation of the inner buckle 8 and the link 6 is controlled by the same axis B.
Therefore, the structure is simple and the pocket 2a of the seat back 2 can be made small.

Next, an embodiment of the second invention shown in FIG. 2 will be described. In this embodiment, the link 6 and the base of the inner buckle 8 are connected by a torsion spring 13 in the seat belt device of the first embodiment.

Therefore, in this embodiment, the armrest 1 is stored in the recess 14
If the lever member 4 fixed to the rotation axis A of the armrest 1 is also rotated forward in the vehicle when it is tilted forward and rotated to the use state position 1 ', Along with this, the link 6 pivots forward through the intermediate rod 5, the flange 7 provided on the link 6 pushes the flange 9 projecting from the base of the inner buckle 8 forward, and the inner buckle 8 is moved to the forward tilted position 8 ’ The inner buckle 8 holds the forward tilted position 8'by the forward tilted surface 3c of the pocket 3a provided on the seat cushion 3.

On the other hand, when the armrest 1 is erected and stored in the storage recess 14 when not in use, the inner buckle 8 ′ in the forward tilt position is pulled by the rearward rotation of the link 6 by the torsion spring 13 to rotate rearward. Then, it returns to the standing position 8 and comes into contact with the flanges 7 and 9 to stop, so that the seat back 2 is stored in the pocket 2a.

Therefore, since the torsion spring 13 is used in this embodiment, the automatic return of the inner buckle from the forward tilted position can be smoothly performed.

Next, in another embodiment of the second invention, the base of the inner buckle 8 and the link 6 are integrally formed, and when the link 6 is rotated along with the rotation of the armrest 1, the inner buckle 8 is directly rotated. Is formed.

In this embodiment, when the armrest 1 is turned forward to the storage recess 14 of the seatback 2, the inner buckle 8 is automatically moved.
Can also be securely stored in the pocket 2a.

〔The invention's effect〕

According to the first aspect of the present invention, the rod member fixed to the rotating shaft of the armrest can be provided by merely tilting the rotatable armrest provided on the bench type seat forward to the use state. The inner buckle can be automatically pushed out and rotated to the forward tilted position by the link rotatably rotated at the same time and rotatably supported by the support member, so that the seat belt can be worn very easily. .

Further, even when the armrest is returned to the retracted position, the inner buckle is held at the forward tilted position, so that the seat belt can be worn as it is.

Further, since the link and the base of the inner buckle are rotatably supported on the same shaft, the inner buckle can be smoothly rotated and the pocket of the inner buckle can be made small. .

Next, according to the second aspect of the invention, when the armrest is stored in the storage recess of the seat back from the use state, the inner buckle is automatically returned to the standing position, and can be reliably stored in the pocket of the seat back. There is.

Further, the inner buckle is automatically stored in the pocket when it is stowed by the armrest, so that the inner buckle is prevented from accidentally sitting on the inner buckle, which is useful for improving the riding comfort of the center seat.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the first invention, FIG. 2 is a side view showing an embodiment of the second invention, and FIGS. 3 and 4 show a standing state and a forward tilted state of an inner buckle. FIG. 5 and FIG. 6 are perspective views of the seat showing a conventional inner buckle in a standing state and a forward tilted state. 1 ... Armrest, 2 ... Seat back, 3 ... Seat cushion, 4 ... Rod member, 5 ... Intermediate rod, 6 ... Link, 7 ... Flange, 8 ... Inner buckle, 9 ... Flange , 13 ...... torsion spring, A …… armrest rotation axis, B …… axis.

Claims (2)

[Claims] 1. An inner buckle of an inner side seat belt provided on both sides of a rotatable armrest of a bench type seat for a vehicle is rotatably supported by a supporting member fixed to the floor side. In the seat belt device, the inner buckle is pushed out by the rotation of a link that is linked to a rod member that is fixed to the rotation shaft of the armrest and that is rotatably supported by the rotation shaft of the inner buckle. A seat belt device characterized in that it is configured to rotate to an inclined position. 2. An inner buckle of an inner seat belt provided on both sides of a rotatable armrest in a vehicle bench type seat is rotatably supported by a support member fixed to the floor side. In the seat belt device, a torsion spring is provided between the inner buckle and a link that is linked to a rod member that is fixed to the pivot shaft of the armrest and that is rotatably supported by the pivot shaft of the inner buckle. Is provided, and the inner buckle is pushed out to be rotated to the forward tilt position by the forward rotation of the link, and the inner buckle is rotated to the standing position via the torsion spring by the backward rotation of the link. A seat belt device characterized in that it is configured to move.