JPH0333540Y2 - - Google Patents

Description

[Detailed Description of the Invention] <<Industrial Application Field>> The present invention relates to a vehicle seat, and particularly relates to a vehicle seat having a reclining mechanism.

<<Prior Art>> FIG. 4 is a schematic side view showing an example of a conventional vehicle seat.

This vehicle seat has a seat cushion of 50
and a seat back 60 attached to the rear of the seat cushion 50 via a reclining mechanism 51, and a headrest 70 is detachably attached to the top of the seat back 60.

<<Problems to be Solved by the Invention>> Incidentally, in such a vehicle seat, the center of rotation of the seat back 60 is generally located at a position slightly higher than the upper surface of the seat cushion 50 in consideration of seating comfort. There is. Therefore, when the seat bag 60 is laid down almost horizontally as shown by the two-dot chain line B in FIG. The upper surface portion of the seat bag 50 and the upper surface portion of the seat bag 60 are not flat and do not provide a very comfortable sleeping feeling.

Therefore, in view of this point, conventionally, for example,
Japanese Utility Model Application Publication No. 60-3127 proposes a vehicle seat in which a part of the seat bag is divided into two parts, front and rear, the lower opposing ends are connected to allow the seat to open and close freely, and one of the divided seat bags is used as a lumbar rest. ing. In addition, Japanese Utility Model Publication No. 60-45141 discloses a device in which an auxiliary cushion, which is normally placed and fixed in a storage recess provided at the rear upper part of the seat bag, is removed and fills in the stepped part of the seat bag when it is folded backwards. Proposed.

However, in the former case where a part of the seat back is used as a lumbar rest, the lower opposing ends of the lumbar rest are connected using a hinge mechanism, resulting in a complicated structure, and this hinge mechanism also This leads to an increase in the overall size, which is disadvantageous in terms of cost.Furthermore, since a part of the seat bag is divided into two parts in the front and back direction, the cushion components of the seat bag itself, such as the skin and pads, have to have a double structure. This is considered to be the case, and from this point on, the overall structure of the seat becomes even more complex.

Furthermore, in the latter case where an auxiliary cushion is used, the structure of the seat bag itself that constitutes the auxiliary cushion requires a storage mechanism to accommodate the auxiliary cushion.
After all, it is unavoidable to have a double structure of the seat back's components.Moreover, when the auxiliary cushion for when the seat back is reclined is removed to be used as a lumbar support, the seat back itself becomes thinner, and from this point on, even if the entire seat is flat, Even if the seat back becomes thinner, the cushioning properties will be sacrificed, and if you try to maintain this cushioning property, you will have to make changes to the seat back itself, such as making it thicker, which will lead to an increase in the size of the entire seat. Become. Moreover, when the seatback using this auxiliary cushion is folded backwards, the headrest gets in the way, and a special mechanism for storing the headrest must be provided, for example, at the rear of the seatback.From this point of view as well, the overall seat structure is becoming more and more difficult. This will complicate things.

Therefore, the present invention was devised in view of the above-mentioned problems, and it is possible to simplify the structure, minimize changes in the structure of the seat bag, and eliminate the difference in level between the upper surface of the seat bag and the upper surface of the seat cushion. The purpose of this invention is to provide a vehicle seat that provides excellent sleeping comfort.

<Means for Solving the Problems> In order to achieve the above object, the present invention provides a lower headrest holder in which a headrest is removably attached to the lower part of the seatback, in addition to the normal headrest holder provided at the top of the seatback. It is characterized by having the following.

<<Operation>> The seat bag is tilted backwards, and in this state, the headrest is attached to the locking part provided at the bottom of the seat bag.

<<Embodiment>> FIG. 1 is a schematic perspective view showing a vehicle seat according to an embodiment of the present invention.

This vehicle seat includes a seat cushion 1,
The seat cushion 1 has a seat back 3 attached to the rear part of the seat cushion 1 via a reclining mechanism 2.

The seat cushion 1 is formed so that its front part is slightly raised from the rear part, as shown in FIG. 2, in accordance with the height of the legs and hips when seated.

As shown in FIG. 3, the seat bag 3 has a substantially rectangular pipe-shaped frame 31 inside a pad 33 (to be described later), and a pair of pipe-shaped head rest holders are provided at the center of each of the two short sides. 32 are provided in parallel. The headrest holder 32 includes a lower headrest holder 321 as a headrest locking part provided on the side where the seat bag 3 is attached to the seat cushion 1;
It is composed of a lower headrest holder 321 and an upper headrest holder 322 provided on the opposite side. A shaft 21 connected to the reclining mechanism 2 is provided at the bottom of the frame 31 and protrudes from the outside of the frame 31.The frame 31 is assembled as shown in FIG. Pad 3 as shown
The seat back 3 is covered with a frame 31, a pad 33, and the like.

As shown in FIG. 2, the upper headrest holder 322 has a space A that is slightly smaller than the space A formed at the rear of the seat cushion 1 and the lower part of the seat bag 3 (see the two-dot chain line in FIG. The legs 4 are provided at the lower part of the head rest 4, and the head rest 4 is approximately pillow-shaped and has a thickness that is approximately the same as that of the foot rest 4.
1 as shown by the dashed line.

The vehicle seat configured as described above is normally used with the seat back 3 upright. When the seat is used for rest, etc., the headrest 4 is pulled out from the upper headrest holder 322, the seatback 3 is tilted back approximately horizontally as shown by the solid line in FIGS. 1 and 2, and the seatback 3 is held in this state. . In this state, the legs 41 of the headrest 4 are inserted into the lower headrest holder 321 as shown by solid lines in FIGS. 1 and 2. The headrest 4 then substantially fills the space A as shown in FIG. In this state, when you lie down on the vehicle seat, you will hardly feel any difference in level.

In this embodiment, the case where there is one headrest 4 has been explained as an example, but the upper headrest holder always holds the headrest 4, and a separate headrest is prepared, and this headrest is used as the lower headrest. It may also be attached to a holder. By doing this, the headrest built into the upper holder can be used as a pillow when lying down. In addition, when a headrest is prepared separately in this way, a groove or a protrusion is formed along the width direction of the seatback on the lower surface of the seatback, and this is used as a lower headrest holder, so that it fits into the lower headrest holder. A headrest may be formed on the In this way, the headrest can be moved in the width direction of the seat cushion, so that the space A can be eliminated more effectively.

<<Effect of the invention>> According to the invention, the lower part of the seat bag is provided with a locking part in which the headrest is assembled, and when the seatback is in a horizontal state, by incorporating the headrest into the locking part at the lower part of the seatback,
To eliminate a space generated between the upper surface of a seat bag and the upper surface of a seat cushion. Therefore, a fully flat seat can be formed and the patient can lie down comfortably.

In addition, the vehicle seat according to the present invention uses the headrest to eliminate the space created between the upper surface of the seat back and the upper surface of the seat cushion. Moreover, since the lower holder for attaching the headrest has a simple structure, there is no need to use a special hinge mechanism to complicate the structure of the seat back, and there is no need to use auxiliary cushions. Together with this, the size of the seat bag can be suppressed.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view showing a vehicle seat according to an embodiment of the present invention, FIG. 2 is a schematic side view showing the vehicle seat of FIG. 1, and FIG. 3 is a schematic side view of the vehicle seat of FIG. 1 and FIG. FIG. 4 is a schematic side view showing an example of a conventional vehicle seat. 1... Seat cushion, 2... Reclining device, 3... Seat bag, 4... Headrest, 321... Lower headrest holder, 32
2... Upper headrest holder.

Claims (1)

[Scope of utility model registration request] A vehicle seat comprising a seat cushion, a seat back attached to the rear of the seat cushion via a reclining mechanism, and a headrest detachably attached to a headrest holder provided at the top of the seat back, comprising: A vehicle seat characterized in that a lower headrest holder is provided at the lower part of the seat bag, in addition to the headrest holder, to which the headrest is detachably attached.