JP3730780B2 - Buckle storage structure for vehicle seat belts - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a storage structure for a seat belt buckle of a vehicle seat.
[0002]
[Prior art]
Foldable seats used as rear seats for wagons, etc., are generally cantilevered, making it difficult to sufficiently increase the strength and rigidity of the seat back. In order to adopt a structure for fixing the seat belt to the vehicle, there are many problems such as an increase in weight, and a structure for fixing the seat belt to the vehicle body must be adopted. In the case where the seat belt is fixed to the vehicle body in the folding seat, there is a difficult problem in terms of storing the seat belt when the seat is folded.
[0003]
That is, for example, as shown in FIG. 3, the first tongue b is attached to the front end of a seat belt a having a base end attached to a vehicle body side member behind the upper seat back d of the rear seat via a retractor, A second tongue b 'is slidably inserted into the seat belt a, and a first buckle c into which the first tongue b is inserted and locked is fixed to a vehicle body side member below the seat back, and The second buckle c ′ is fixed to the vehicle body side member at the lower part of the seat back at the position on the vehicle body center side than the first buckle c, and the first tongue b is always inserted and locked in the first buckle c. And the second tongue b 'is not locked to the second buckle c', the seat belt is not worn and the passenger is seated in the rear seat and the seat belt a is pulled out from the retractor. 2 tang b 'second In the seat belt device that can be put on the three-point seat belt as shown by a chain line by inserting and locking to the knuckle c ′, the seat belt shown in the solid line is not worn when the seat is folded. The first tongue b is also removed from the first buckle c, and then the sheet is folded.
[0004]
If the first tongue b is removed from the first buckle c when the seat belt is not worn as described above, the seat belt a is wound and stored in the retractor, but the positions of the buckles c and c ′ become unstable. When the folded seat is returned to its original use position, the buckles c and c 'enter under the seat cushion, and it takes a lot of trouble to lift the buckles c and c' to a predetermined position on the seat cushion. There is a problem that it takes.
[0005]
To solve this problem, a pocket that can store and hold the buckle is provided in the seat back. After folding the seat, the tongue is removed from the buckle, and then the buckle is stored and held in the pocket so that the buckle is placed under the seat cushion. A number of so-called seat belt buckle pocket structures which have been prevented from entering are conventionally devised. For example, in JP-A-7-81518, JP-A-8-58527 or JP-A-8-192718. It has been published.
[0006]
[Problems to be solved by the invention]
In the above prior art, after removing the tongue from the buckle when folding the seat, the buckle is inserted into a pocket provided in the seat and stored so that the buckle does not move, and then the seat is folded, When the seat is returned to the original use position again, the buckle is stored in the pocket portion of the seat back, thereby making it easy to return the seat belt device to the original usable state. In addition, there is a merit that the usability is improved when the sheet is folded and returned to the use position.
[0007]
The object of the present invention is to further improve the merits of the conventional configuration as described above and to further improve usability.
[0008]
[Means for Solving the Problems]
The present invention relates to a vehicle seat belt buckle storage structure in which a pocket portion is provided in a seat back and a buckle into which a seat belt tongue is inserted and locked is stored in the pocket portion. By forming the protruding portion so that the buckle is housed in the pocket portion, the protruding portion presses the release button of the buckle to release the locking of the tongue to the buckle. When folding, the buckle is inserted into the pocket and the buckle is inserted into the pocket, and the buckle is retracted and the tongue is unlocked simultaneously. It is very easy to clean the belt device, and the time and effort required for folding the seat can be reduced and shortened.
[0009]
In addition, since the release button of the buckle is embedded in the release hole provided in the peripheral wall portion of the buckle, the occupant cannot normally press and operate with a finger or a nail, but the buckle is attached to the pocket portion. The release button is pressed and the tongue is unlocked only when the protrusion is inserted into the release hole, so that the seat belt can be worn with the tongue always locked to the buckle except when the seat is folded. The seatbelt wearing rate of the occupant seated and seated can be improved.
[0010]
Furthermore, since the upper surface of the pocket portion is configured as an inclined surface that gradually rises as it goes forward, when the buckle is inserted into the pocket portion and the locking of the tongue is released, the seat belt retracting force of the retractor is increased. Thus, the tongue that has slipped out of the buckle can smoothly move to the upper storage position along the inclined surface.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0012]
FIG. 1 shows a first embodiment of the present invention. In FIG. 1 (A), reference numeral 1 denotes a seat belt, and a tongue 2 is attached to a lower end portion of the seat belt 1, and the tongue 2 is inserted. The buckle 3 to be locked in is fixed to a vehicle body member (not shown) below the seat back 10 by a belt 4. Although not shown, the upper end of the seat belt 1 is wound around a retractor, and the retractor is fixed to a vehicle body member at the upper rear of the seat back 10. The belt 4 extends upward from a fixing portion of the lower end to the vehicle body member through the lower portion of the front surface of the seat back 10 and the rear end portion of the seat cushion 11, and a buckle 3 attached to the upper end of the belt 4 is provided. The tongue 2 is inserted and locked to the buckle 3 at an upper portion near the rear end of the seat cushion 11. The seat comprising the seat back 10 and the seat cushion 11 in FIG. 1 is a foldable seat employed as a rear seat such as a wagon car, for example. The tongue 2 and the buckle 3 in FIG. 1 and the first buckle c. When the tongue 2 is inserted and locked to the buckle 3 in FIG. 1, the seat belt shown in the solid line in FIG. 3 is not worn, and in FIG. By inserting and locking a second tongue (not shown) inserted and held in 1 into a second buckle (not shown), the three-point seat belt shown in FIG.
[0013]
As is well known, the buckle 3 has an insertion port 3a for the tongue 2 at the top, and engages and engages with the locking portion 2a of the tongue 2 inserted through the insertion port 3a. An engaging mechanism for providing a state is provided inside. Also, a release button 3b for releasing the locking of the tongue 2 is provided. In the present invention, the release button 3b is buried in a release hole 3c provided in the peripheral wall portion of the buckle 3, and the occupant releases the release button 3b. Cannot be pressed by hand (by a finger, a nail, or the like).
[0014]
A recess 10a is provided in the lower front portion of the seat back 10, and a storage case 6 having an open front is attached to the recess 10a. The storage case 6 constitutes a pocket portion 5 for storing and holding the buckle 3. .
[0015]
In addition to having a space in which the buckle 3 can be stored, the storage case 6 is formed with an inclined surface 6a that gradually rises upward as it goes forward. Projections 6b projecting forward are formed on the rear surface, and claw portions 7 for holding the stored buckle 3 are formed on both the left and right side surfaces and the lower surface of the storage case 6. . The protrusion 6b is configured in a shape that can be fitted into the release hole 3c of the buckle 3.
[0016]
In the above, normally, the tongue 2 is inserted and locked into the buckle 3 as described above. In this state, the second tongue (not shown) is inserted into the second buckle (not shown). By stopping, the three-point seat belt device can be put on.
[0017]
When folding the seat, the buckle 3 is inserted into the storage case 6 of the pocket portion 5 with the release hole 3c facing backward in a normal state where the tongue 2 is inserted and locked into the buckle 3. Then, as shown in FIG. 1 (B), the protrusion 6b protruding from the rear surface of the storage case 6 is relatively fitted into the release hole 3c of the buckle 3, and the tip of the protrusion 6b presses the release button 3b. Then, the locking of the tongue 2 to the buckle 3 is released. Then, when the seat belt 1 is pulled upward by the retracting force of the retractor (not shown), the tongue 2 is automatically detached from the buckle 3 and comes out upward along the inclined surface 6a of the storage case 6. It is wound up by the retractor and put into a storage state. The buckle 3 inserted into the storage case 6 is securely held in the stored state by the claw portion 7, and the seat back 10 and the seat cushion 11 can be folded in this state.
[0018]
When the buckle 3 is taken out from the storage case 6 after returning the seat to the normal use state, a relatively large space is formed on the upper portion of the buckle 3 in the stored state by the inclined surface 6a. The buckle 3 can be easily pulled out by hand using the lever, and the seat belt 1 is pulled out from the retractor and the tongue 2 is inserted and locked into the buckle 3 so that it can be used again as a three-point seat belt device. It can be.
[0019]
The above embodiment shows a configuration in which the buckle 3 is fixed to the vehicle body member below the seat back 10 by the belt 4 and the buckle 3 is stored and held in the pocket portion 5 of the seat back 10 when the seat is folded. As shown in FIG. 2, the storage structure of the buckle 3 when the buckle 3 is attached to the vehicle body side member at the rear lower part of the seat cushion 11 by means of a bracket 4 'as a second embodiment will be described next. To do.
[0020]
As shown in FIG. 2, the buckle 3 is pivotally attached to a vehicle body side member at the rear lower part of the seat cushion via a bracket 4 ', and rotates in the vehicle longitudinal direction with respect to the bracket 4' as shown by a broken line. It is possible. The upper portion of the buckle 3 has an insertion port 3a for the tongue 2, and a release button 3b for releasing the locking of the tongue 2 is provided on the rear surface in a state of being buried in the release hole 3c. Same as buckle 3.
[0021]
A pocket portion 15 having a space in which the buckle 3 can be accommodated and having the front surface opened is formed at the lower front portion of the seat back 10, and a protrusion 15 a is provided on the rear surface of the pocket portion 15.
[0022]
In this second embodiment, in order to fold the seat, the buckle 3 with the tongue 2 locked is left as it is, and the seat back 10 is tilted forward of the vehicle body with the lower part as the center of rotation. At that time, the buckle 3 is pushed by the pocket portion 15 provided in the seat back 10 and pivots forward as indicated by a broken line, while the projection 15a is fitted into the release hole 3c of the buckle 3 and presses the release button 3b. The locking of the tongue 2 is released. Then, when the seat belt 1 is pulled by the retracting force of the retractor, the tongue 2 naturally comes out of the buckle 3 and is stored together with the seat belt 1, and the seat back 10 is fully folded forward. The buckle 3 is stored in the pocket portion 15.
[0023]
When the seat back 10 is erected, the buckle 3 comes off the pocket portion 15 and returns to its original state, and the tongue 2 is inserted into and locked in the buckle 3 so that it can be used as a three-point seat belt device. Return.
[0024]
In the second embodiment, when the side surface of the pocket portion 15 is widened toward the front, the insertion and removal of the buckle 3 from the pocket portion 15 can be performed smoothly and smoothly.
[0025]
【The invention's effect】
As described above, according to the present invention, the storage of the buckle in the pocket portion and the engagement of the tongue can be performed by a single operation of inserting the buckle with the tongue locked into the pocket portion formed in the seat back. The release and release of the seat belt are automatically performed at the same time, and it is very easy to clean the seat belt device when folding the seat, so that it is possible to reduce the labor and time required for the folding operation of the seat.
[0026]
In addition, since the tongue is held in a state where it is locked to the buckle unless the buckle is inserted into and stored in the pocket, the seat belt device is always kept usable except when the seat is folded, and the seat belt wearing rate is reduced. It can be improved and can bring about a great practical effect.
[Brief description of the drawings]
FIGS. 1A and 1B show a first embodiment of the present invention, in which FIG. 1A is an exploded perspective view of all functions, and FIG. 1B is a longitudinal side view of a state in which a buckle portion is housed and held in a pocket portion.
FIG. 2 is an overall perspective view showing a second embodiment of the present invention.
FIG. 3 is a perspective explanatory view showing an example of a foldable seat to which the present invention is to be applied and a seat belt device equipped thereon.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Seat belt 2 Tongue 3 Buckle 3b Release button 3c Release hole 4 Belt 4 'Bracket 5 Pocket part 6 Storage case 6a Inclined surface 6b Projection part 7 Claw part 10 Seat back 10a Recess part 15 Pocket part 15a Projection part

Claims (3)

A vehicle seat belt buckle storage structure in which a pocket portion is provided in a vehicle seat back and a buckle into which a seat belt tongue is inserted and locked is stored in the pocket portion. The vehicle has a structure in which the protrusion is formed and the buckle is housed in the pocket portion, so that the protrusion presses the release button of the buckle so that the locking of the tongue to the buckle is released. Seat belt buckle storage structure. The buckle release button according to claim 1 is structured to be buried in a release hole provided in a peripheral wall surface of the buckle so that an occupant cannot press the release button, and the buckle is stored in the pocket portion. Thus, the protrusion is fitted into the release hole of the buckle, and the release button is pressed at the tip of the protrusion. 3. A buckle storage structure for a vehicle seat belt, wherein the pocket portion according to claim 1 or 2 is formed on an inclined surface whose upper surface rises upward as it goes forward.

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