JP2661464B2 - Headrest device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headrest device for a vehicle seat or the like, and more particularly, to a headrest provided at the upper end of a seat back so as to be capable of falling and standing up and down in the front-rear direction so that a rear occupant can expand the front view. The invention relates to a retractable headrest device made.

[0002]

2. Description of the Related Art In general, a vehicle seat or the like stably holds a seated occupant during driving of a car, gives a proper sitting feeling, and is capable of maintaining a seated state for a long time. It is desired that fatigue can be reduced as much as possible. For this reason, various support devices are attached to each part of the seat. Most commonly, such a support device is a headlust attached to the upper end of the seat back so as to support the back side of the head of the seated person.

[0003] By the way, various types of headrests are conventionally known as such headrests. For example, a headrest supported by a headrest stay protruding from an upper end portion of a seat back can be moved in the front-rear direction of the seat. A front-rear position adjustment type is also known. With such a movable headrest configuration, it is possible to further improve the feeling of the occupant.

Further, in recent years, this type of vehicle seat is configured to be capable of falling or standing up and down in the front-rear direction without removing a headrest used for a front seat of the vehicle. Japanese Unexamined Utility Model Publication No. 47-18237, Japanese Utility Model Laid-Open No. 52-6324, and Japanese Utility Model Publication No. 3-44594 disclose a configuration in which a front view of an occupant seated in a seat is enlarged and the state can be ensured. And so on.

The headrests disclosed in Japanese Utility Model Laid-Open Nos. 47-18237 and 52-6324 have a structure in which the entire headrest is folded. The headrest device disclosed in Japanese Utility Model Publication No. 3-44594 is provided with a front block and a rear block formed by dividing the headrest into two parts, a front block and a rear block. The lower end of the front block is rotatably supported, and the upper end of the rear block is rotatably supported on the upper end of the front block. By locking with a lock mechanism provided at the upper end of the headrest stay, the two blocks are raised up at the upper end of the seatback in a state where they are combined with each other, so that the function as the headrest can be exhibited.

[0006]

However, in the headrest having the conventional structure, when the headrest is removed, there is no place to put the removed headrest, and there is a possibility that the headrest is soiled, and the headrest holder and the like are exposed. There is a possibility that the appearance may be significantly deteriorated. Further, in a headrest device in which the entire headrest is folded, the entire headrest such as a pillow and a headrest is merely connected to a seat back by a hinge or the like. And there was a risk that the rear seat occupant would hit a hinge or the like.

In a headrest device in which a headrest is divided into a front part and a rear part, the lock mechanism is disengaged when the front and rear blocks are folded down in front of the seat to enlarge the rear passenger's view in front of the seat. After the front block body is once rotated upward, the front block body and the rear block body are tilted forward about the pivot on the stay, and the operation is complicated. Had bad disadvantages.

The present invention has been made in view of such circumstances, and is simply configured with a minimum number of necessary components, and furthermore, the headrest is raised or lowered at the upper end portion of the seat back, and is provided in front of the rear occupant. It is an object of the present invention to provide a headrest device capable of expanding the field of view as required, performing the standing and falling operations easily and quickly, and having an excellent appearance and excellent safety.

[0009]

A headrest device according to the present invention is provided with a headrest mounted on an upper end portion of a seat back and supporting a back of a head of a seated person. An outer block body for supporting the back of the head of the vehicle, and an inner block body housed inside the outer block body, wherein the outer block body is an outer frame, a pad material and a skin material for covering the outer periphery of the outer frame. The inner block body has an inner frame, a pad material and a skin material covering the outer periphery of the inner frame, and the inner frame of the inner block body has a headrest stay erected from an upper end of a seat back. Attached to an upper end, a front inner lower end of the outer block body and a front outer lower end of the inner block body are connected via a hinge member. It is binding, if the outer block member is rotated forward around the hinge member, the inner block member to an upper position than the hinge member is characterized by being adapted to expose.

[0010]

According to the present invention, the headrest comprises an outer block body for supporting the back of the head of the occupant in a normal state, and an inner block body accommodated in the outer block body. The inner lower end and the front outer lower end of the inner block body are connected via a hinge member, and the outer block body supports the back of the head of the occupant in an upright state,
When the outer block body is rotated forward about the hinge member, the inner block body housed inside the outer block body is exposed to an upper position by the hinge member, and the inner block body is used by an occupant of a rear seat. , And the front view of the occupant in the rear seat can be expanded.

[0011]

1 to 3 show an embodiment of a headrest device according to the present invention. A headrest 11 of a headrest device such as a vehicle seat is shown in FIGS.
As is clear from (b), the outer block body 12 for supporting the back of the head of the occupant in the normal state, and the outer block body 12
And an inner block body 13 housed therein.

The inner frame 1 of the inner block 13
A pair of left and right headrest stays 17 are fixed to 5. The pair of left and right headrest stays 17 are assembled to the upper end of the seat back. Note that, instead of the pair of left and right headrest stays 17, an inverted U-shaped headrest stay may be used. Also, one headrest stay may be used.

Outer block body 12 and inner block body 1
3 may be in close contact with each other, or a gap may be provided. As shown in FIG. 2, the outer block body 12 has an outer frame 19, and the outer periphery of the outer frame 19 is covered with a pad material 21 and a skin material 22. The outer periphery of the inner frame 15 of the inner block body 13 is a pad material 2
4 and a skin material 25.

A front lower end of the outer block body 12;
In this embodiment, the front inner lower end of the outer frame 19 and the front outer lower end of the inner block body 13, and in this embodiment, the bottom of the inner frame 15, are connected via a hinge member 27 such as a hinge. When the outer block body 12 is rotated forward about the hinge member 27, the pad material 24 and the skin covering the outer periphery of the inner frame 15 of the inner block body 13 at a position higher than the hinge member 27 Material 25 is provided to protect the occupants of the rear seat.

As shown in FIG. 1, a finisher 31 made of a synthetic resin material or the like is mounted inside the outer frame 19 of the outer block body 12. This finisher 31
An engaging piece 32 having a substantially L-shaped cross section and an engaging piece 33 having a projection are formed on both front and rear sides of the outer frame 19, and the engaging piece 32 is inserted and locked into an engaging hole 35 formed in the outer frame 19. The engagement piece 33 is engaged with an engagement portion 36 formed on the outer frame 19.

As shown in FIG. 1 and FIGS. 3A and 3B,
A lock mechanism 41 is provided between the outer frame 19 of the outer block body 12 and the inner frame 15 of the inner block body 13. Although not described in detail, the lock mechanism 41 has a lock shaft 42 provided on the outer block body 12 side and a lock hole 43 formed on the inner block body 13 side.

As shown in FIG. 1, the lock shafts 42 are formed on both left and right sides in this embodiment, but may be provided on any one side. An operation knob 45 is connected to an outer end of the lock shaft 42.
A lock pin 47 is formed at the inner end of the. A coil spring 49, one end of which is locked by an E-ring 51, is attached to an intermediate position of the lock shaft 42. The other end of the coil spring 49 is locked to the finisher 31 side. It is urged in the fitting direction.

The inner frame 1 of the inner block 13
A lock finisher 53 that covers the outer periphery of the lock hole 43 is attached to both left and right sides of the lock 5. A pair of upper and lower locking pieces 55 are formed in the lock finisher 53, and the locking pieces 55 are fitted into locking holes 57 formed above and below the lock holes 43 on the left and right sides of the inner frame 15. ing.

According to such a configuration, FIG.
As shown in (a), in the upright headrest 11 in which the outer block body 12 can support the back of the head of the occupant, the lock knob 47 of the lock mechanism 41 is externally pulled by pulling the operation knob 45 outward. The outer block body 12 is pulled out from the lock hole 43, the lock mechanism 41 is unlocked, and the outer block body 12 is pressed forward of the seat, so that the outer block body 12 is moved to the hinge member 2 as shown in FIG.
7 can be rotated around the center of rotation, and it becomes possible to be in the falling state due to the forward fall.

Further, when the outer block body 12 is rotated forward about the hinge member 27, the inner block body 13 housed inside the outer block body 12 is exposed,
The inner block body 13 can protect the occupant of the rear seat, and can enlarge the front view of the occupant of the rear seat.

Next, as shown in FIGS. 3 (b) to 3 (a), the outer block body 12 is pressed so as to be lifted to the rear of the seat, contrary to the above description in FIG. The inner block body 13 is overlapped so as to cover it, and is erected at the upper end of the seat back. Further, the operation knob 45 of the lock mechanism 41 is pulled, and
By releasing the hand further, the lock pin 47 can be fitted and locked in the lock hole 43 by the urging force of the coil spring 49, and can be returned to the original standing state.

FIG. 4 shows a different embodiment of the inner block body 13 of the present invention. Parts corresponding to those of the above-described embodiment are denoted by the same reference numerals, and further detailed description is omitted. However, instead of the pair of left and right headrest stays 17 fixed to the inner frame 15 of the inner block body 13, the headrest stays 17 are formed in a substantially inverted U-shape. The lower substrate 15a of the inner frame 15 is rotatable with
And the headrest 11 is attached to the headrest stay 17.
Except for being rotatable about the central portion 17a of the present embodiment, it has the same configuration and operation as the embodiment described above.

That is, the outer block body 12 can be set in a falling state by falling forward rather than in a standing state capable of supporting the back of the head of the seated person. Notches 63 are formed on the lower substrate 15a of the inner frame 15 on the left and right so that the headrest stay 17 can relatively move when the headrest 11 rotates.

It should be noted that the present invention is not limited to the structure of the embodiment described above, and the shapes, structures, and the like of the respective parts including the headrest 11 and the seat back can be freely modified and changed as necessary. For example, various structures can be used as the connection structure between the outer blocks 12 and the frames 15 and 19 constituting the inner blocks 13 and the pad materials 21 and 24, and the externally operable lock mechanism 41 for locking the outer blocks 12 in an upright state. Can be considered.

[0025]

As described above, according to the headrest device of the present invention, the headrest normally supports the back of the head of the seated occupant, and the inner block housed inside the outer block. And a front inner lower end of the outer block body and a front outer lower end of the inner block body are connected via a hinge member, and the outer block body supports the back of the seated person's head in an upright state, and When the block body is rotated forward around the hinge member, the inner block body housed inside the outer block body is exposed above the hinge member, and this inner block body protects the occupant of the rear seat. can do.

In addition, the erecting and falling operations of the outer block body can be performed only by locking and unlocking the lock mechanism and pressing the outer block body, so that the operability can be greatly improved as compared with the prior art. The headrest device can be simply constructed with the minimum necessary number of components, and the front view of the rear occupant can be expanded as required, and the headrest device has excellent appearance and extremely excellent safety.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of a headrest device according to the present invention.

FIG. 2 is a sectional view of a headrest device according to the present invention.

3A and 3B show an operating state of the headrest device according to the present invention, wherein FIG. 3A is a perspective view showing a standing state of an outer block body, and FIG. 3B is a perspective view showing a falling state of the outer block body.

FIG. 4 is an exploded perspective view showing a different embodiment of the inner block body of the headrest device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Headrest 12 Outer block body 13 Inner block body 15 Inner frame 17 Headrest stay 19 Outer frame 21 Pad material 22 Skin material 24 Pad material 25 Skin material 27 Hinge member 31 Finisher 41 Lock mechanism 42 Lock shaft 43 Lock hole 45 Operation knob 47 Lock pin

Claims (1)

(57) [Claims] 1. A headrest device having a headrest mounted on an upper end portion of a seat back and supporting a back surface of a seated person's head, wherein the headrest includes an outer block body that normally supports the back surface of the seated person's head, An outer block body housed inside the outer block body, wherein the outer block body has an outer frame, a pad material and a skin material covering the outer periphery of the outer frame, and the inner block body is an inner frame. And a pad material and a skin material covering the outer periphery of the inner frame, wherein the inner frame of the inner block body is attached to an upper end of a headrest stay erected from an upper end of a seat back, and is provided in front of the outer block body. The lower end of the inner side and the lower end of the front outer side of the inner block body are connected via a hinge member, and the outer block body is connected to the hinge member through the hinge member. A headrest device wherein the inner block body is exposed at a position above the hinge member when pivoted forward to the heart.