JPH0232112Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a vehicle seat, and more specifically, the present invention relates to a vehicle seat, and more specifically, the seat cushion can be raised toward the seat back side by rotating the seat cushion using its rear end as a fulcrum as necessary. This invention relates to a seat cushion fixing device for a flip-up seat that can be folded up in a state.

(Prior Art) A conventional seat cushion fixing device used in this type of seat, that is, a means for holding the folded seat cushion in place while standing upright on the front surface of the seat bag, is as follows. A band type is generally used to secure the seat using a band provided on the seat back side or seat cushion side.

(Problem to be solved by the invention) However, with the band-type conventional device mentioned above,
It requires two operations: a so-called flip-up operation to displace the seat cushion to an upright state, and a fixing operation to hook the band to the seat cushion or seat bag while supporting the seat cushion,
The drawback was that it was difficult to operate.

Therefore, in view of the above problems, the technical problem to be solved by the present invention is to improve the ease of operation.

(Means for Solving the Problems) The technical means for solving the above problems is to pivot the rear end of the seat cushion to the seat bag or to the support of the seat bag, and use this pivot point as a fulcrum to move the seat cushion. In the flip-up seat, which can be folded into an overlapping state on the front surface of the seat bag by rotating the seat cushion upward, the seat cushion fixing device is connected to a tongue attached to the side surface of the seat bag, and locks and releases the seat cushion with the tongue. A buckle support arm is provided with a flexible buckle at its tip and rotatably pivoted to the side surface of the seat cushion, and this buckle support arm is made to protrude toward the seat back when the seat cushion is raised. and means for rotating and displacing the seat cushion in conjunction with the rotational displacement of the seat cushion so that the seat cushion is positioned sideways on the side surface of the cushion when the seat cushion is horizontal.

(Function) Therefore, when the seat cushion is pivoted upward using the pivot point at the rear end as a fulcrum, the buckle protrudes toward the seat back side and locks with the tongue, thereby locking the seat cushion. can be fixed to the front of the seat bag in an upright position. Also, when the buckle release button is operated to release the locking action between the buckle and the tongue, the seat cushion will fall forward and be in a horizontal position where you can sit normally. placed in a posture.

(Example) Hereinafter, an example of the present invention will be specifically described based on the drawings. As shown in the figure, a seat bag 1 is erected and fixed on a floorboard via left and right pillars 2.
On the other hand, the left and right rear end portions of the seat cushion 3, specifically, the rear end portion of the cushion frame 3a, are pivotally connected to the support column 2 of the seat bag 1 via a pin 4 so as to be able to rotate in the vertical direction. In order to maintain a prescribed seating posture, the seat cushion 3 is normally held in a substantially horizontal position by a pair of left and right seat legs 5 arranged on the lower front surface thereof. The left and right seat legs 5 are each pivotally connected to the seat cushion 3 via a pin 6 at its upper end, and via a pin 7 below the pivot point with the seat cushion 3 of the support column 2. It is connected to a pivotally mounted link 8, and is configured to be folded onto the back surface of the seat cushion 3 when the seat cushion 3 is pivoted upward.

Next, a seat cushion fixing device for a flip-up seat constructed as described above will be explained. This fixing device is a buckle-type locking mechanism consisting of a buckle and a tongue, which is generally known as a device for attaching or releasing a seat belt.The buckle 9 is attached to the seat cushion side, and the tongue is attached to the seat back side. 10 is installed. Although not shown, the buckle 9
When the tongue 10 is inserted, it is automatically locked, and the lock is released by pressing the release button 9a.

Specifically, the buckle 9 is the seat cushion 3.
An insertion opening for a tongue 10 is integrally provided at the tip of a buckle support arm 11 disposed on a side surface of the buckle support arm 11 so as to face forward. This buckle support arm 11 is attached to an arm bracket 13 fixed to the cushion frame 3a by bolts 12.
It is pivotally connected via a pin 14 to be rotatable in the vertical direction, and is constantly provided with downward rotational force by a torsion spring 15. Also,
The buckle support arm 11 is tied to one end of a wire 16 in order to change the direction of the buckle 9. The buckle support arm 11 is fastened to the buckle support arm 11 by the tensile force generated due to the difference in connection points to the support column 2 when the seat cushion 3 is raised.
The seat cushion 3 is rotatably displaced in a direction in which it protrudes from the upper surface of the seat cushion 3.

The wire 16 is routed through the seat cushion 3, specifically the seat frame 3a, to avoid exposure to the outside as much as possible, and is guided by a guide pulley 17 attached to the cushion frame 3a. ing.

This embodiment is configured as described above,
Therefore, when the seat cushion 3 is rotated upward about the pin 4 in order to be folded and stored, the buckle support arm 11 is attached to the wire 16 as shown by the imaginary line in FIG. The resulting tensile force causes it to rotate upwardly about pin 14 against torsion spring 15 . That is, the buckle support arm 11 is rotated so as to protrude toward the upper surface side of the seat cushion 3 as the seat cushion 3 is rotated so as to stand up in front of the seat bag 1, and as a result, the buckle support arm 11 9 is projected toward the seat back 1 side with the tongue insertion opening facing rearward. As a result, as shown by the imaginary line in Fig. 1, the tongue 1 on the seat back 1 side
0 is inserted into the buckle 9 and automatically locked, fixing the seat cushion 3 in an upright position.

At this time, the seat leg 5 is also pulled through the link 8 and folded onto the back surface of the seat cushion 3.

In order to return the seat cushion 3 to the horizontal position, which is the normal seating position, the seat cushion 3 must be tilted forward after the tongue 10 is unlocked by pressing the release button 9a of the buckle 9. In this case, as the wire 16 loosens, the buckle 9 and the buckle support arm 11 are rotated back to their original positions by the torsion spring 15. That is, the buckle 9 and the buckle support arm 11 are disposed on the side of the seat cushion 3 in a sideways state, so that they do not get in the way when the seat is used.

Note that the fixing device consisting of the buckle 9 and the tongue 10 may be attached to one or both of the left and right sides of the seat, and the buckle 9 and the buckle support arm 11 may be attached to both sides of the seat.
The wire 16 for rotating the can be changed to a link mechanism if necessary. Furthermore, the spring for return is the torsion spring 15 shown in the figure.
It is not limited to. Further, the seat may be of a type that does not have the seat legs 5.

(Effects of the invention) As detailed above, according to the invention, the seat cushion can be fixed in the upright position or returned to the original position by lifting the seat cushion or unlocking the buckle. It is possible to return to normal operation, and the operation can be simplified compared to the conventional method. In addition, when the seat cushion is upright, the buckle is connected to the tongue by protruding toward the seat back side, and when the seat cushion is horizontal, it is placed on the side of the seat cushion in a horizontal position. It does not get in the way when used, and is extremely effective in practice.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of a flip-up seat equipped with a seat cushion fixing device, FIG. 2 is a side view showing a buckle and its rotation displacement means, and FIG. It is also a plan sectional view. 1... Seat back, 3... Seat cushion, 9... Buckle, 10... Tongue, 11...
Buckle support arm, 15... Torsion spring, 16... Wire.

Claims (1)

[Scope of utility model registration request] The rear end of the seat cushion is pivotally connected to the seat bag or the support of the seat bag, and the seat cushion is rotated upward using this pivot point as a fulcrum, thereby creating a spring that can be folded into an overlapping state on the front side of the seat bag. The lift-type seat includes a tongue attached to the side surface of the seat bag, and a tip of the tongue, a lock, and a releasable buckle,
and a buckle support arm pivotally connected to the side surface of the seat cushion, and the buckle support arm protrudes toward the seat back side when the seat cushion is upright, and extends horizontally to the side surface of the cushion when the seat cushion is horizontal. A seat cushion fixing device for a flip-up type seat, comprising means for rotationally displacing the seat cushion in conjunction with the rotational displacement of the seat cushion so as to position the seat cushion in a reclined state.