JPH03112Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a seat device for an automobile, and in particular, to a seat device having a structure for attaching a headrest to a seat back, which is suitable for application to a seat device having a reclining mechanism. It is something.

(Prior Art) In an automobile seat device, a headrest is provided at the upper end of a seat bag. In addition, some front seats that have a reclining mechanism use this reclining mechanism to
There is a model that allows you to push the seat back horizontally backwards and connect it to the rear seat.
However, when attempting to push the seatback of the front seat horizontally backwards, there is a risk that the headrest will hit the front end of the seat cushion of the rear seat, making it impossible to fold the seatback horizontally. To this end, conventionally, as shown in Japanese Utility Model Application Publication No. 58-12030, a recessed portion for housing the headrest is formed at the upper end of the seat bag, and under normal conditions, the recessed portion protrudes upward from the upper end of the seat bag. The headrest can be stored in the recess of the seatback in response to the reclining movement of the seatback, and when the seatback is reclined almost horizontally (when fully flat), the headrest is completely retracted into the recess and the headrest is Make sure it doesn't hit the front edge of the rear seat.

(Problem to be solved by the invention) However, in the seat device configured in this way, since the seat bag is formed with a recess for storing the headrest, the backrest surface of the seat bag is cut out due to the formation of the recess. Therefore, there was a problem that a suitable backrest surface could not be formed. The purpose of the present invention is to solve such problems.

(Means for Solving the Problems) To this end, the automobile seat device according to the present invention includes a seat cushion, at least one headrest support rod, and a first seat into which the headrest support rod can be slidably inserted. a seat back having the same number of headrest support rods in the vertical direction inside a tubular hole; and a headrest having the same number of headrest support rods in the vertical direction inside a second tubular hole into which the headrest support rods can be slidably inserted. a first engaging means for removably engaging the headrest support rod with the seat bag at a predetermined position; and a first engaging means for removably engaging the headrest support rod with the headrest at a predetermined position. two engaging means, the first tubular hole having a length that allows the entire length of the headrest support rod to be recessed therein; In the retracted state, the headrest support rod can be held against the seat bag.

In a preferred embodiment, the bottom of the first annular hole is provided with biasing means for biasing the headrest support rod towards the headrest.

(Function) In the present invention configured as described above, in order to attach the headrest to the seat bag, the headrest support member stored in the seat bag is pulled out from inside the seat bag, and the headrest is fixed to the pulled out protrusion. Good. Further, in a seat device having a reclining mechanism, in a fully flat state where a head rest is not required, the support member may be stored in the seat bag after the head rest is removed from its support member.

(Effects of the invention) As described above, according to the invention, a fully flat state can be formed without forming a recess on the upper end surface of the seat bag to form a storage section for the headrest. It can be done. Another advantage is that the removed headrest does not have a stay as a headrest support member unlike conventional insert-type headrests, so it is safe to use the removed headrest as a pillow or cushion. There is. Furthermore, since the headrest support member can be completely stored inside the seat bag, there is no need to provide a new space for storing the headrest support member, and the space within the vehicle interior can be used effectively.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

1 to 3 show an embodiment of a front seat according to the present invention. In the figure,
1 is a seat back of the front seat, 2 is a seat cushion, 3 and 5 are stays as headrest support members, and 7 is a headrest supported above the seat back 1 by the stays 3 and 5. The seat back 1 has its upper end 1
Two guide pipes 11 and 12 are built in that extend parallel to each other downward from a, the upper ends of these guide pipes 11 and 12 are open, and large diameter guide pipes 13 and 14 are coaxially connected to the lower ends of the guide pipes 11 and 12. ing. Annular end walls 15 and 16 are formed at the connection parts with the guide pipes 13 and 14, respectively, and disc-shaped stoppers 17 and 18 that can slide inside the guide pipes 13 and 14 are connected to coil springs 19 and 20. is pressed against the end walls 15, 16 by. L-shaped engagement members 21 and 22 are disposed at side portions near the upper ends of the guide pipes 11 and 12,
The coil spring 23, 24 presses the protrusions 21a and 22a. The proximal ends of these protrusions 21a, 22a are bent upward at right angles, and the protrusions 21a, 22a have lock knobs 21b, 2 protruding from the upper end 1a of the seat bag at their tips.
2b is formed.

Next, the stays 3 and 5 are connected to the guide pipes 11 and 1.
2, and near the upper end in the axial direction of the material and near the center thereof, there are engagement grooves 3a, into which the engagement protrusions 21a and 22a can engage.
3b, 5a, 5b are engraved. Further, in the stay 3, an engagement groove 3 is formed on the outer peripheral wall of the stay 3 on the side opposite to the engagement groove 3a near the upper end thereof.
c, 3d, and 3e are formed at predetermined intervals in the material axis direction.

On the other hand, the head rest 7 has two built-in guide pipes 71 and 72 extending upward from its lower end 7a, and stays 3 and 5 projecting upward from the seat back upper end 1a from their lower end openings. It is possible to insert each. In the guide pipe 71 into which the stay 3 is inserted,
A hole 71a is formed in the outer peripheral wall of the stay 3 on the side facing the engagement grooves 3c to 3e, and an engagement member 73 for adjusting the height of the headrest 7 extends inward from the hole 71a into the pipe 71. An engaging protrusion 73a that can be engaged with the grooves 3c to 3e can protrude. As shown in FIG. 2A, this engaging member 73 has a knob 73b protruding outward from the headrest side wall 7b at the other end, and by moving this knob 73b, The engaging member 73 rotates. However, in the normal state, the knob 73b is biased upward by the coil spring 73d, so that the protrusion 73a projects into the pipe 71.

The positions of the engagement grooves 3a of the stays 3, 5 are as shown in FIG. 2B when the stays 3, 5 are completely housed in the pipes 11, 13 of the seat bag. 22a. 10 is a rear seat.

In the front seat configured in this way,
In the normal state, as shown in FIG. 2A, the engaging protrusion 21a is engaged with the groove 3b of the stay 3, and the stay 3 projects upward from the seat back upper end member 1a. The same applies to the stay 5, which is not shown. These protruding portions of the stays 3 and 5 are inserted into the pipes 71 and 72 of the head rest 7, and one of the grooves 3c to 3e of the stay 3 is engaged with a height adjustment protrusion 73a. In this way, the headrest 7 is supported at a predetermined height above the seat bag 1. As is clear from the above explanation, to adjust the height of the headrest 7, move the knob 73b downward,
The protrusion 73a may be retracted, and then the protrusion 73a may be engaged with any of the grooves 3c to 3e corresponding to the desired height.

Next, the operation of removing the headrest 7 in order to bring the front seat into a fully flat state as shown in FIG. 3, for example, will be described. First, the height adjustment knob 73b is moved downward, the protrusion 73a is retracted, and the headrest 7 is removed from the stays 3 and 5. After that, by moving the knobs 21b and 22b provided on the upper end 1a of the seat back 1, the protrusions 21a and 22a and the grooves 3a and 5a of the stays 3 and 5 are moved.
disengage with. As a result, the stays 3 and 5 slide downward in the guide pipes 11 and 12 due to their own weight, and the movement is such that the lower ends of the stays are connected to the stoppers 17 and 12.
It collides with 8 and stops. After this, by further artificially pushing in the tips of the stays 3 and 5, the
As shown in FIG. 2, the grooves 3a and 5a of the stays 3 and 5 reach the positions of the protrusions 21a and 22a. Protrusions 21a, 2
Since 2a is pressed by springs 23 and 24, the protrusion 21 is pushed into the grooves 3a and 5a by the spring force.
a and 22a are engaged, and the stays 3 and 5 are completely housed in the seat bag 1. Therefore,
Thereafter, the seat back 1 can be folded backwards into a fully flat state.

On the other hand, in order to pull out the stays 3 and 5 once stored, move the knobs 21b and 22b and move the grooves 3a and 5.
5a and the projections 21a, 22a may be disengaged from each other. With this, the stays 3 and 5 are moved to the stopper 1.
7 and 18 and is pushed upward by the spring force of springs 19 and 20, so if the protruding portion is further pulled out artificially, the grooves 3b and 5b and the protrusion 21
a and 22a are engaged, resulting in the state shown in FIG. 2A.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram showing one embodiment of the present invention;
Figure A shows the headrest attached, Figure 2B shows the stay stored, and Figure 3 shows the seat. 1... Seat back, 1a... Upper end, 3, 5
...Stay, 3a, 3b, 5a, 5b...Groove, 7
...Headrest, 7a...Lower end, 11,1
2, 13, 14, 71, 72...pipe, 21,
22, 73...Engagement member.

Claims (1)

[Claims for Utility Model Registration] (1) A seat cushion, at least one headrest support rod, and a first tubular hole into which the headrest support rod can be slidably inserted, and the headrest support rod extends vertically in a first tubular hole into which the headrest support rod can be slidably inserted. a headrest having the same number of headrest support rods as the headrest support rods in the vertical direction inside a second tubular hole into which the headrest support rods can be slidably inserted; a first engaging means for removably engaging the headrest support rod at a predetermined position; and a second engaging means for removably engaging the headrest support rod with the headrest at a predetermined position; The hole has a length that allows the entire length of the headrest support rod to be recessed therein, and the first engagement means is configured to engage the headrest support rod into the seat bag with the headrest support rod recessed in the first tubular hole. An automobile seat device that can be held against the vehicle. (2) The automobile seat device according to claim 1, wherein a biasing means for biasing the headrest support rod toward the headrest is provided at the bottom of the first annular hole.