JPH0242204Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement in a laterally movable headrest of a vehicle seat.

(Prior art and its problems) A conventional headrest A' of this type is shown in FIG. In this conventional product A', the stays 1', 1' of the headrest are slidably attached to the seat back B frames b, b of the seat S, so that the headrest can be moved laterally together with the stays. Therefore, in the conventional product A', when assembling the headrest A' to the seed bag B after assembling the seat S, the stay attachment part _b1 of the frame B moves, which requires a lot of effort to assemble. The structure also becomes more complex. Moreover, since the opening 1a' for moving the stay is provided in the upper part of the seat back B, it may be difficult to use the opening 1a', which spoils the aesthetic appearance of the seat S.
There was a risk that foreign matter could enter through a' and cause a malfunction.

The present invention was developed in view of the above circumstances, and its purpose is to provide a headrest that has a simple structure, is easy to assemble to a seat, and has good lateral movement. be.

The basic structure of the present invention to achieve the above object is a stay that is attached to the seat frame in an upright manner, a guide piece that is fixed to the upper part of the stay and has both ends bent to form a U-shape, and the guide. A slide rod that is slidably attached to the guide piece and has a plurality of locking notches formed at appropriate intervals on the surface facing the guide piece, and is fixed to the guide piece and engages with the locking notches. It is formed by an elastic member that adjusts the sliding movement of the slide rod, and a headrest main body that is fixed to the slide rod and moves left and right as the slide slides, so that the headrest can move laterally without moving the stay attached to the seat. It is designed to be movable.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. Figure 2 shows seat bag B equipped with product A of the present invention.
The upper part of this seat bag B has the same form as the conventional product in which the headrest cannot be moved in the lateral direction, and there is no need to open an oblong opening for moving the stay of the headrest as in the seat of the conventional product. .

The stays 1, 1 are attached to the frame b constituting the seat bag B either directly or via pipes 11, 11 as shown (FIG. 3). The illustrated stays 1, 1 are inserted into the pipes 11, 11 so as to be movable in the vertical direction.
The height is adjustable.

2 is a guide piece 2 installed across the upper ends of both the stays 1, 1, and this guide piece 2 is formed into a U-shape with an intermediate part 2a and both end parts 2b, 2c bent in the same direction. There is. Further, the guide piece 2 has through holes formed at both ends 2b and 2c, and a slide rod 3 formed integrally with the headrest body a is slidably inserted therethrough. Note that 21 and 21 in the figure are reinforcing pieces that are integrally fixed to the guide piece 2 that has a through hole.
The headrest main body a has a conventionally well-known structure consisting of a hard support member and a cushion material, and the slide rod 3 is laterally fixed to the support member directly or via fixing rods 31, 31.

An elastic member is provided between the slide rod 3 and the guide piece 2 to restrict the movement of the slide rod 3 and hold the headrest A at a predetermined position on the seat B.

The elastic member 1 shown in FIG. 3 and FIG.
1 is fixed to the guide piece 2 and includes a plate spring 42 that engages with this locking notch 41.
The locked state is maintained by the elastic force of step 2, and by pushing the headrest main body a in the lateral direction against the elastic force of the leaf spring 42, the locked state is released and the headrest is returned to the predetermined position. It has a movable structure. That is, by simply pressing the headrest body a in a desired direction without releasing the lock mechanism A, the headrest body a moves in the pressing direction while stopping at a predetermined position in stages with moderation. .

In addition, the resilient member A' shown in FIG. 5 has a steel ball engaging element 43 resiliently activated by a spring 44, so that it engages and locks in the locking notch 41 of the slide rod 3 in the same manner as in the previous embodiment. 45 in the figure is the guide piece 2.
This is a case that stores the spring 44 and the engaging element 43.

In this embodiment, since the steel ball engaging element 43 is used, when the headrest main body a is pressed,
Steel ball engager 45 until the steel ball engager 43 disengages from the engagement notch 41 and engages with the adjacent locking notch 41
Since the sliding resistance between the slide rod 3 and the slide rod 3 can be lowered, operability can be improved.

(Effects of the invention) Since the invention is constructed as described above, it has the following advantages.

(1) Since a horizontally movable member such as a slide rod is provided within the head rest, manufacturing is easier and workability is better than conventional products in which such members are provided within the seat.

(2) Also, unlike conventional products, there is no need to drill a long hole in the top of the seat for moving the stay, so there is no need to damage the beauty of the seat, and there is no possibility of foreign objects getting inserted through the long hole and causing malfunctions. .

(3) Since the head rest moves approximately at the center of its interior, the movement is more precise and smoother than conventional products that move around the lower end of the stay of the head rest.

(4) The headrest body can be pressed in a desired direction without unlocking the resilient member, and the headrest body can be stopped at a predetermined position in stages with moderation. This results in extremely good operability.

Thus, the intended purpose can be achieved.

[Brief explanation of drawings]

Figure 1 is a partially cutaway perspective view of a conventional product;
Fig. 2 is a perspective view showing a seat equipped with the product of the present invention, Fig. 3 is a perspective view showing the main parts, Fig. 4 is a plan view of the same, and Fig. 5 is a plan view of another embodiment. . In the figure, A: head rest, a: head rest main body, b: seat back frame, B: seat back, 1, 1: stay, 2: guide piece, 3: slide rod, 41: locking notch, a, a' : Indicates each elastic member.

Claims (1)

[Scope of utility model registration request] A stay that is attached to the seat frame in an upright manner, a guide piece that is fixed to the upper part of the stay and has both ends bent to form a U-shape, and a guide piece that is slidably attached to the guide piece and that faces the guide piece. a slide rod having a plurality of locking notches formed at appropriate intervals on its surface, fixed to the guide piece;
A vehicle seat comprising: a resilient member that adjusts the sliding movement of the slide rod by engaging with the locking notch; and a headrest main body that is fixed to the slide rod and moves left and right as the slide slides. Headrest.