JPH0517964Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a headrest that is attached to the upper part of the backrest of an automobile seat and protects the back of the driver's head.

[Conventional technology]

The headrest is composed of a frame structure consisting of a rigid core body and a stay, and a cushion material that wraps around the core body of the frame structure,
The stay is inserted and supported into an insertion hole provided in the backrest of the seat.

An example of a conventional headrest of this type is disclosed in Japanese Utility Model Application Publication No. 13649/1983. In this conventional frame structure consisting of a core body and a stay, the core body is composed of a front member and a rear member that are formed into a hollow double wall structure by blow molding, and the front member and the rear member are are foldably connected at their upper ends, and the front and rear members are connected to each other with a plurality of rivets with the stay sandwiched between them.

[The problem that the idea aims to solve]

In the conventional example described above, the front and rear members are connected using multiple rivets, which requires multiple steps such as driving the rivets and managing the rivets. The assembly workability of this core body is poor, and this becomes a hindrance to reducing assembly costs.

The present invention is based on the above-mentioned problem, and consists of blow-molded front and rear members, and a locking piece integrally molded on one member is bent and provided on the other member. It can be assembled by a single action of engaging the frame structure, and the workability of assembling the frame structure can be significantly improved.
To provide a headrest which can easily cover the core with a cushion material that wraps around the core of a frame structure, and can reduce the labor cost for assembling the entire headrest.

[Means to solve the problem]

In order to achieve the above object, the headrest according to the present invention includes a frame structure including a core and a stay, and a core of the frame structure wrapped in a cushion material, and a core of the frame structure. In a headrest whose body is composed of a front member and a rear member that are formed into a hollow double-walled structure by blow molding, a side end portion of one of the front and rear members constituting the core body is attached. The locking piece is bent and integrally formed, and the other member is provided with an engaging portion with which the locking piece engages.

[Effect]

Overlap the two members while sandwiching the stay between the front and rear members of the core body, then bend the locking piece provided on one member and engage the engaging portion provided on the other member. Both members are joined by joining,
Assembling the core of the frame structure consisting of the core and the stay is performed by one action of engaging the locking pieces.

〔Example〕

Embodiments of the present invention will be described based on the drawings.

In FIG. 4, 1 is a frame structure consisting of a core 2 and a stay 3, 4 is a cushion material that wraps around the core 1, and this cushion material 4
is covered with the epidermis 5. Reference numeral 6 denotes a presser plate that fixes the skin 5 to the lower surface of the frame structure 1.

The frame structure 1 consists of a front member 8a and a rear member 8b whose upper ends are connected by a hinge piece 7, and both members 8a and 8b have a hollow double wall structure by blow molding. and both members 8
Stay attachment grooves 9a and 9b, in which the stay 3 formed in a gate shape is attached, are formed in the mating surfaces of a and 8b. The stay 3 is connected to a frame 17 using a support shaft 10 as a fulcrum, and is configured to be able to change its posture in the front direction with respect to the frame 17, and the frame 17 has both members 8a and 8.
It is designed to be fixed to a fitting part 18 formed on the inner wall of b.

A locking piece 11 is integrally formed on the lower side of the front member 8a of the core body 2. As shown in FIG. This locking piece 11 is connected to the front member 8a by a thin connecting part 11a, and has a hook part 11b formed at its tip. Also, the rear side member 8b
An engaging portion 12 with which the hook portion 11b of the locking piece 11 engages is provided on the lower side. The engaging portion 12 has a concave shape corresponding to the thickness of the locking piece 11 that engages with the engaging portion 12.

Further, recesses 13a and 1 that fit into each other are provided at a plurality of locations on the mating surfaces of the front and rear members 8a and 8b.
3b and convex portions 14a, 14b are provided.

In the above configuration, the front member 8a in the expanded state
and the stay 3 is attached to one of the stay attachment grooves 9a or 9b of the rear side member 8b, and then both members 8
a, 8b are aligned and the locking piece 11 provided on the front member 8a is engaged with the engaging portion 12 of the rear member 8b, thereby fixing the stay 3 between the front member 8a and the rear member 8b. A frame structure 1 is assembled. At this time, since the engaging portion 12 has a concave shape with a depth equal to the thickness of the locking piece 11,
The locking piece 11 in a state of being engaged with the engaging portion 12 is connected to the core body 2
The outer surface of the rear member 8b is flush with the outer surface of the rear member 8b.

Thereafter, a cushion material 4 whose outer side is covered with a skin 5 around the core body 2 of the frame structure 1
The underside of the skin 5 is pressed with a presser plate 6 fixed to the lower surface of the core body 2. This holding plate 6 is secured by a bolt 16 screwed into a nut member 15 inserted into the core body 2. At this time, the locking piece 1 that engages both the front and rear members 8a and 8b of the core body 2
1 does not protrude from the outer surface of the core body 2, so that the cushion material 4 can be easily wrapped around the core body 2.

In the above embodiment, the front and rear members 8 of the core body 2
Although an example is shown in which locking pieces 11 for assembling parts a and 8b are provided on the lower side thereof, locking pieces 11 are provided on both left and right sides of the front member 8a' as shown in FIGS. 6 and 7. 11', 11' are provided, and engaging parts 12', 12' with which the hook parts 11b' of the locking pieces 11', 11' engage are provided on both left and right sides of the rear member 8b', and the core body 2 ′ may be connected on both the left and right sides. Also in this case, the engaging portions 12', 12' are recessed with a depth equal to the thickness of the locking pieces 11', 11', and the locking pieces 11', 11' in the engaged state are It does not protrude beyond the core body 2'.

Note that the locking pieces 11, 11' in each of the above embodiments
By providing these on the front members 8a, 8a' side, even if the driver's head collides with the front side of the head dress and force is applied to the front members 8a, 8a' of the core bodies 2, 2', deforming them. The locking pieces 11, 11' will not come off.

Note that the hinge piece 7 that foldably connects the front member 8a and the rear member 8b is not necessarily required, as shown in FIG. 6. Also, stay 3
For the angle adjustment mechanism consisting of the frame 17 and the frame 17, a conventionally known structure can be used.

[Effect of idea]

According to the present invention, the blow-molded front and rear members 8a, 8b, 8a', 8b' are provided on the other member by bending the locking pieces 11, 11' integrally molded on one member. The frame structure can be assembled by a single action of engaging with the engaging portions 12 and 12', which significantly improves the workability of assembling the frame structure. It can be easily placed over the core body, and the labor cost for assembling the entire headrest can be reduced.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view showing the frame structure in an expanded state, and FIG.
The figure is a side view of the stay with it separated.
The figure is a cross-sectional view of the frame structure in the assembled state.
5 is a bottom view of the frame structure, FIG. 6 is a perspective view showing a frame structure according to another embodiment of the present invention, and FIG. 7 is a sectional view thereof. 1 is a frame structure, 2 and 2' are core bodies, 3 is a stay, 4 is a cushion material, 8a, 8b, 8a', 8
b' is the front and rear members.

Claims (1)

[Scope of utility model registration request] A frame structure consisting of a core body and a stay;
The core of this frame structure is wrapped in a cushion material, and the core of the frame structure is composed of a front member and a rear member that are blow molded into a hollow double wall structure. In the headrest, a locking piece is integrally molded in a bendable manner at at least one side end of the front and rear members constituting the core body, and the locking piece engages with the other member. 1. A headrest characterized in that the engaging portion with which the locking piece engages is formed into a concave shape with a depth equal to the thickness of the locking piece.