JPH08207704A - Seat belt buckle device - Google Patents

Abstract

PURPOSE: To provide a seat belt buckle device, which can easily draw a buckle to the use position without inserting fingers deep into a housing part of a buckle device and which can prevent the projection of the buckle from the housing part when an impact is given to a car body. CONSTITUTION: This seat belt buckle device is provided with a buckle 23 for fixing a seat belt, a push spring 24 for pushing a stay 16 so that this buckle 23 is moved from a housing recessed part to the use position, a lock mechanism 22 for locking the stay 16 so that the buckle 23 is positioned in the housing recessed part 14, resisting the pushing force of the push spring 24, and an operation lever 27 for canceling the lock of the locking mechanism 22 so that the buckle 23 is moved to the use position by the pushing force of the push spring 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat belt buckle device which is provided, for example, in a rear seat of a passenger car and which is fixed by inserting a fixing member of a seat belt.

[0002]

2. Description of the Related Art As shown in FIGS. 5 and 6, a seat belt buckle device 10 of this type is stored in a storage recess 2 as a storage portion provided on the lower front side of a seat back 1, and when used, It is adapted to be used by being pulled out forward from the storage recess 2 by a passenger.

The seat belt buckle device 10 is shown in FIG.
As shown in FIG. 3, a stay 4 is provided, the lower end portion of the stay 4 is rotatably supported by the support fitting 3, and the buckle 5 is fixed to the upper end portion. Further, a spring 6 as a biasing member is interposed between the support fitting 3 and the stay 4,
The stay 4 is biased by the spring force of the spring 6 in the direction in which the stay 4 is stored in the storage recess 2 (the direction of arrow b).

A cut-and-raised piece 7 is provided in the middle of the stay 4.
The cut-and-raised pieces 7 contact the first and second stoppers 8 and 9 provided at the upper end of the support fitting 3 so as to project at a predetermined interval along the rotational direction of the stay 4. It is contacted and stopped.

Therefore, when the passenger uses a seat belt, the seat belt (not shown) is pulled out and hung on the body, and the stay 4 is moved forward (arrow a).
Direction) to pull out the buckle 5 from the storage recess 2 and insert the fixing fitting at the tip of the seat belt into the buckle 5 to fix the seat belt.

[0006]

However, in the prior art, when pulling out the buckle 5 from the storage recess 2, the passenger inserts his or her finger into the narrow storage recess 2 to resist the biasing force of the spring 6. As a result, the buckle 5 is pulled out, so the operability is poor and there is the inconvenience that it cannot be pulled out smoothly.

It should be noted that if the storage recess 2 is made larger, the insertion of a finger becomes easier, but in this case, the storage recess 2 cannot be made large because the external appearance becomes unaesthetic. Further, since the stay 4 is stored and held in the storage recess 2 by the spring force of the spring 6, the holding force of the stay 4 is weak, and when the seat back 1 is tilted or the occupant moves due to an impact load applied to the vehicle body. However, there is a problem in that the stay 4 may rotate and project from the storage recess 2 and the safety may be poor.

Therefore, according to the present invention, the buckle can be easily pulled out to the use position without deeply inserting the finger into the storage portion, and the seat belt is designed not to be protruded from the storage portion even if the vehicle body receives an impact. An object is to provide a buckle device.

[0009]

In order to solve the above problems, the present invention provides a support member attached to a vehicle body, a stay rotatably supported by the support member in the front-rear direction of the vehicle body, and the stay. A buckle for fixing the seat belt, which is provided to move to a use position by rotating the stay forward, and which is stored in the storage portion by rotating backward.
An urging member that urges the stay so that the buckle moves from the storage portion to the use position, and the stay so that the buckle is located inside the storage portion against the urging force of the urging member. Locking means for locking and an operating part on the front side of the storage part are provided, the lock of the locking means is unlocked by operating this operating part, and the buckle is moved to the use position by the urging force of the urging member. Lock releasing means.

[0010]

The lock of the lock means is unlocked by operating the operation portion of the lock release means located on the front side of the storage section. By this unlocking, the stay is rotated by the urging force of the urging member, and the buckle is projected from the storage portion and moved to the use position. By moving the buckle to the use position, the passenger can pull out the buckle from the storage portion without inserting the finger into the storage portion.

Further, when the buckle is stored, the stay is locked by the locking means to enhance the holding force of the buckle and prevent the buckle from protruding from the storage portion when the vehicle body receives an impact.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. 1 and 2 show a rear seat of a passenger car, in which 11 is a seat cushion of the rear seat,
12 is a seat back.

The seat cushion 11 is attached to a cushion frame 13 or a rear floor, and a recess 14 for storage as a storage portion is provided at a substantially lower center of the seat back 12. A seat belt buckle device 15 for inserting and fixing a fixing member (not shown) at the front end portion of the seat belt is provided in the storage recess 14.

This seat belt buckle device 15 is shown in FIG.
As shown in, a stay 16 is provided, and the lower end of the stay 16 is rotatably supported by a base plate 18 as a support member via a support shaft 17. The base plate 18 is fixed to the cushion frame 13. A buckle 23 is fixedly provided on the upper end portion of the stay 16, and a fixing fitting (not shown) at the front end portion of the seat belt is inserted and fixed to the buckle 23.

An engaging protrusion 19 is formed at the center of the upper end of the base plate 18, and a latch 21 is rotatably attached to the stay 16 via a support shaft 20. The latch 21 is engaged with the engaging protrusion 19 of the base plate 18 so as to be engageable and disengageable.
A spring member 25 as a biasing member is provided between the stay 16 and the latch 21, and the spring force of the spring member 25 presses the latch 21 against the engaging protrusion 19 of the base plate 18. The base plate 18
The locking protrusion 22 and the latch 21 of the stay 16 constitute a lock mechanism 22.

Further, the base plate 18 and the stay 1 are
6, a pressing spring 24 is provided as a biasing member,
The stay 16 is pushed forward of the seat back 12 by the pressing force of the pressing spring 24.

On the other hand, an operating lever 27 as a lock release mechanism is provided at the rotating end of the latch 21 via a connecting member 26.
Are connected at one end. An intermediate portion of the operation lever 27 is rotatably supported by the stay 16 via a support shaft 28, and an operation knob 29 is provided at the other end of the operation recess 29.
Is provided on the front side of the.

However, when using the seat belt, the passenger pulls out the seat belt (not shown) and hangs it around his / her body, and also operates the operation knob 29 of the operation lever 27 of the buckle device 15 in the direction of arrow C. Push down. As a result, one end of the operation lever 27 is lifted, and the tip of the latch 21 is rotated upward via the connecting member 26. This rotation causes the latch 21 to move to the base plate 18
The lock is released by disengaging from the engaging projection 19 of. Due to this unlocking, the stay 16 is pushed forward (in the direction of arrow a) by the pressing spring 24 to rotate, and the buckle 23 thereof is projected forward from the storage recess 14. The fixing metal fitting at the tip of the seat belt is inserted into and fixed to the protruding buckle 23. After that, the buckle 23 is pushed backward (in the direction of arrow b) to rotate the stay 16, and the stay 16 is stored in the storage recess 14. At this time, the latch 21 is attached to the base plate 1
8 and the buckle 23 engages with the engaging projection 19 of
Locked in 4.

As described above, by simply depressing the operation knob 29 of the operation lever 27 located on the front side of the storage recess 14, the buckle 23 is moved from the storage recess 14 to the seat back 1.
Since it can be projected to the front side of 2, the passenger does not need to forcibly insert his / her finger into the storage recess 14 to pull out the buckle 23, which makes the pulling-out operation of the buckle 23 extremely easy. .

Further, since the buckle device 15 is locked in the accommodating recess 14 by the engagement between the engaging projection 19 of the base plate 18 and the latch 21 of the stay 16, the buckle device 15 is firmly held in the accommodating recess 14. Even if the vehicle body receives an impact, the buckle device 15 does not project from the storage recess 14, and the safety is high.

Further, the engagement between the stay 16 and the latch 21 provides a modest operational feeling. In the above embodiment, only one engaging projection 19 is formed on the base plate 18, but the present invention is not limited to this, and a plurality of engaging projections 19 are formed on the base plate 18 in the rotation direction of the stay 16. You may form. According to this embodiment, the stay 16 can be gradually locked at a desired angle, and the buckle 23 can be positioned at a desired position.

[0022]

As described above, according to the present invention, when the lock means is unlocked by operating the operation portion of the lock releasing means located on the front side of the storage portion, the buckle is retracted by the biasing force of the biasing member. Since it protrudes from the part to the use position, the buckle can be pulled out from the storage part without the passenger having to bother to insert his / her fingers into the storage part as in the conventional case, and the buckle can be pulled out easily.

Further, since the stay is locked by the locking means when the buckle is stored, the holding force of the buckle is strengthened, and the buckle does not project from the storage portion even if the vehicle body receives an impact, so that the safety is high.

[Brief description of drawings]

FIG. 1 is a front view showing a part of a rear seat including a seat belt buckle device according to an embodiment of the present invention.

FIG. 2 is a side view showing the rear seat of FIG.

FIG. 3 is a perspective view showing a locked state of the seat belt buckle device of FIG.

FIG. 4 is a perspective view showing a state where the seat belt buckle device of FIG. 1 is unlocked.

FIG. 5 is a front view showing a part of a rear seat provided with a conventional seat belt buckle device.

FIG. 6 is a side view showing the rear seat of FIG.

FIG. 7 is a perspective view showing the seat belt buckle device of FIG.

[Explanation of symbols]

 12 ... Seat back 16 ... Stay 18 ... Base plate (supporting member) 19 ... Engaging projection (locking means) 21 ... Latch (locking means) 23 ... Buckle 24 ... Pressing spring (biasing member) 27 ... Operation lever (lock releasing means) )

Claims (6)

[Claims] 1. A support member attached to a vehicle body, a stay rotatably supported by the support member in the front-rear direction of the vehicle body, and a stay provided on the stay that is brought to a use position by rotating the stay forward. A buckle for fixing the seat belt, which is moved and is stored in the storage portion by pivoting backward, and a biasing member for biasing the stay so that the buckle moves from the storage portion to a use position. Locking means for locking the stay so that the buckle is located in the storage portion against the urging force of the urging member, and an operation portion on the front side of the storage portion. A seatbelt buckle device, comprising: a lock release unit that unlocks a lock unit and moves the buckle to a use position by an urging force of the urging member. 2. The storage section is a storage recess formed in a lower portion of the front side of the seat back.
Seat belt buckle device as described. 3. The locking means comprises an engagement protrusion formed on the support member and a latch provided on the stay and releasably engaged with the engagement protrusion. The seat belt buckle device according to 1 or 2. 4. The lock release means is an operation lever in which an intermediate part is rotatably supported by the stay, an operation part is provided at one end, and the other end is connected to the latch via a connecting member. The seatbelt buckle device according to claim 3, wherein: 5. The seat belt buckle device according to claim 4, wherein the operation portion of the operation lever is located in front of the stay and projects toward the front surface of the seat back. 6. The seat belt buckle according to claim 3, wherein a plurality of engagement protrusions of the support member are formed in the rotation direction of the stay, and the rotation angle of the stay is set in a plurality of stages. apparatus.