JPS6031706A - Headrest apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a headrest device in which a headrest is provided with a cover, and more particularly, a seat back trap headrest rotatably provided.

Conventionally, it has been proposed that a headrest is rotatably attached to the top of the seatback, but there are two methods: one in which the headrest is rotated forward and fixed at the top of the seatback, and the other in which it is rotated to the rear of the seatback. It is only configured so that it can be set in a stored state where it is inserted into the back of the seat back. Therefore, the conventional rotary headrest cannot be adjusted to a desired rotation angle and cannot be used for various purposes.

An object of the present invention is to provide a headrest device in which the headrest is rotatable and can be adjusted to any rotational angle and fixed, and will be described in detail below with reference to the drawings.

1, 2 and 3 show one embodiment of the invention, and FIGS. 4 and 5 show various usage patterns.

As shown in FIG.
It is attached.

At the top of the seat back 2, there are hinge pins 4 on both sides.
is provided, and this hinge bin 4 is provided with a headrest arm (
An arm 5 (hereinafter referred to as an arm) is pivotally supported, and a headrest 6 is rotatably provided via this arm 5. Note that it is not necessary to provide a pad material on the back side of the headrest 6 when it is in use.

A locking mechanism 8 is provided between the seatback frame 7, which is a member on the seatback 2 side, and one arm 5, which is a member on the headrest 6 side, for adjusting and fixing the headrest 6 to an arbitrary rotation angle. It is being The locking mechanism 8 in the embodiment shown in FIGS. 2 and 3 includes a ratchet 9 fixed to the seat back frame 7 side and a ratchet 9 rotatably attached to the root 5' side of the arm 5. The ratchet 9 is provided with teeth 11 which are removably provided. The ratchet 9 is fitted into and fixed to a non-circular ratchet pin IQ fixed to the seat back frame 7. The tooth 11 is rotatably attached to the arm 5 via a pivot pin 12, and is biased by a lever spring 13 in the direction of engagement with the ratchet 9. Further, the tooth 11 is provided with a pin 14 for releasing engagement, and this pin 14 for releasing engagement is inserted into an elongated hole 15 formed in an arc shape in the arm 5 with the pivot pin 12 as the center. A knob 16 is attached to the head of the pin 14 protruding from the elongated hole 15, and by operating this knob 16, the tooth 11 can be moved to the spring 1.
The tooth 11 is configured such that the tooth 11 can be removed from the ratchet 9 by rotating it in the direction of the arrow a in FIG.

The ratchet pin 10 fixed to the seat back 2 has a pin hole 10' formed from one end toward the inside, and the hinge pin 4 is inserted from the outside of one arm 5 into this pin hole 10'. The arm 5 on the side where the locking mechanism 8 is attached is attached to this ratchet pin IOK.
It can rotate about the inserted hinge pin 4 as a fulcrum. Further, the hinge pin 4 of the other arm 5 is inserted into a pin hole (not shown) made directly in the seat back frame 7 or a pin hole made in a pin (not shown) fixed to the seat back frame 7. It is inserted from the outside of the arm 5.

In the headrest device of the above embodiment, when the headrest 6 is not used, it can be rotated to both sides of the back side of the seat back 2 via the arms 5 located on both sides of the seed pack 2, as shown in FIG. Let it go and store it.

Next, when using the headrest 6, operate the knob 16 of the locking mechanism 8 and move the tooth 11 in the direction of arrow a in FIG.
After rotating the tooth 11 from the ratchet 9 in the direction shown in FIG. 4, the headrest 6 is rotated forward via the arm 5 as shown in FIG. Adjust accordingly, release the knob 16 of the locking mechanism 8, rotate the tooth 11 by the spring 13 in the direction in which the ratchet 9K engages, and fix the headrest 6 at the adjusted position through the engagement of the ratchet 9 and the tooth 11. and use it.

Further, when the tilt angle of the seat back 2 is changed via the device 3, the headrest 6 can be adjusted and used to match the tilt angle.

Next, when applying the present invention to an outdoor sheet, as shown in FIG. 5, two relatively small sheets),
17; 18 from the main seat (not shown), use these two seats 1-17 and 18 side by side, and with the headrest 6 of the front seat 17 retracted, move the seat back 2 back to nearly horizontal. Let it fall down and seat 1 in the back
The substantial height of the seat back 2 of the seat 18 can be increased by tilting the seat back 2 of the seat 18 back to an arbitrary tilt angle and adjusting and fixing the headrest 6 of the seat 18 in an upright state. , the user's upper body is supported by the seat back 2 and headrest 6 of the rear seat 18,
The legs can be extended from the seat back 2 of the front seat 17 toward the seat cushion 1 and used as a simple bed on which to relax.

In the present invention, the specific structure of the locking mechanism 8 is not limited to the embodiment shown in the drawings, but may be any structure as long as it can adjust and fix the headrest 6 to any rotation angle via the arm 5.

The above is the configuration of an embodiment of the headrest device according to the present invention. According to this configuration, the headrest is rotatably provided on the upper part of the seatback via the arms at both ends, and the member on the seatback side By providing a locking mechanism between the headrest side member and the headrest side member for adjusting and fixing the headrest to any rotation angle, it is possible to adjust the headrest to any rotation angle and fix it. If you change the inclination angle of the seatback, you can adjust the rotation angle of the headrest to match that angle, or in the case of a seat that can be taken out outdoors, there are two relatively small When the seats are used side by side, the actual height of the seat back of one seat can be increased, allowing it to be used as a simple bed with a headrest that can adjust the rotation or rotation angle as desired. In combination, they can be adjusted and used in various forms and have effects.

It should be noted that the above description is merely an embodiment of the present invention, and it will be obvious that various modifications and changes can be made without departing from the spirit of the present invention.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention, Fig. 12 is an exploded perspective view showing an example of the locking mechanism, Fig. 3 is an enlarged longitudinal sectional side view of the main parts, and Figs. 4 and 5 are It is a perspective view which shows various usage forms. In the figure, 2... Seat back, 4... Hinge bin, 5
... Arm, 6... Headrest, 7... Seat back frame, 8... Lock mechanism.

Claims (1)

[Claims] The headrest is rotatably mounted on the top of the seat hack via the headrest arms on both sides, and a locking mechanism for fixing the headrest is provided on the seatback side member and the headrest side member. headrest device.