JPH059950Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an automobile seat, and more particularly, to the structure of a seat having a flip-up seat cushion.

(Prior Art) As is well known, for example, in the case of a rear seat in a van-type automobile, in order to expand the luggage compartment, the front side of the seat cushion is used as a fulcrum to rotate and flip up the rear seat towards the front seat side. There is a structure.

That is, such a seat 1, as shown in FIG. 4, has a seat cushion 1A that can be raised and folded by being supported on the front side by a support shaft 3a of a hinge member 3, which is a bracket provided on a floor panel 2. ,
It has a seat back 1B that can be raised and folded, the lower part of which is supported by a hinge member 3 and whose head is a swinging end. After flipping up seat bag 1A, fold down seat bag 1B using support shaft 3a as a fulcrum.

On the other hand, when configuring it as a seat, the seat cushion 1A and the seat back 1B are set in a predetermined position by the reverse procedure to that described above.

And for sheets with this kind of structure,
A structure is provided to prevent the flipped up seat cushion 1A from moving blindly. Specifically, as shown in FIG. A sheet metal hook 5 having a U-shaped side view is attached to the end, and a holder 6 on which the hook 5 is hung is provided on the back side of the seat bag 1B. Note that one end of the band 4 and the holder 6 described above are fixed to a frame (not shown) provided inside the seat cushion 1A and the seat bag 1B, respectively.

Therefore, when the luggage compartment is expanded by flipping up the seat cushion 1A and folding down the seat bag 1B, the head of the seat bag 1B is attached to the support shaft on the back side of the seat cushion 1A, as shown in Figure 5. 3a, and tries to rotate the seat cushion 1A counterclockwise in the figure, but this rotation is caused by the engagement between the hook 5 of the band 4 and the holder 6. This can be prevented depending on the situation.

(Problem to be Solved by the Invention) However, with such a seat structure, when the seat cushion 1A is flipped up, the luggage in the luggage compartment may be pushed up by the seat cushion due to inertia caused by braking, for example. If it collides with the back surface of the section 1A, the impact will apply a load to the engaged hook 5 and holder 6, as well as the attachment portion of the band 4, which may cause breakage of that portion. .

Therefore, the purpose of the present invention is to take into account the problems with conventional seats, and to solve the problem when an excessive load is applied to the seat cushion in the raised state.
To provide a seat capable of forcibly releasing the engagement of an engagement member for preventing blind movement of a seat cushion and preventing destruction of a mounting portion of the engagement member.

(Means for solving the problem) The present invention provides flexibility to the hook that is hooked to the holder provided on the back side of the seat bag, and prevents excessive load from being applied to the band that has this hook. Sometimes, the hook is deformed to release the hook from the holder.

(Function) According to the present invention, when an impact is applied to the seat cushion in the raised state and the band becomes under high tension, the hook is deflected and deformed and detached from the holder.

(Embodiment) Hereinafter, details of an embodiment of the present invention will be described with reference to FIGS. 1 to 3.

FIG. 1 is an explanatory diagram corresponding to FIG. 4 showing the overall structure of a seat according to an embodiment of the present invention, and the same members as those shown in FIG. 4 are designated by the same symbols.

That is, one end of a band 14 is attached to the back surface of the seat cushion 11A via the bracket 7, and the other end of the band 14 is made of resin such as vinyl chloride or a flexible material such as spring steel. A hook 15 made of a flexible material and having a U-shape in side view is attached.

The above-mentioned hook 15 can be deformed when a load is applied due to its material, and specifically,
As shown in the third figure, when the band 14 is pulled,
In normal life, it deforms from a U-shaped state to a substantially straight line.

On the other hand, as shown in the second figure, the holder 16 is composed of a sheet metal insert 16a having a locking part that can be engaged with the U-shaped part of the hook 15, and a resin cover 16b integrally molded with the insert 16a. The insert 16a is screwed to the seat frame (not shown) of the seat bag 11B.

Since the present embodiment has the above-described structure, when preventing blind movement of the seat cushion 11A in the flipped-up state, the pressure contact action of the seat back 11B against the seat cushion 11A is utilized, as in the conventional system. At the same time, attach the hook 15 to the holder 1.
Seat cushion 1 by hooking it to 6.
All you have to do is flip up 1A and maintain the position.

On the other hand, seat cushion 1 in the above-mentioned position
When an impact is applied to the seat cushion 1A due to a collision of a load, the seat cushion 11A rotates around the support shaft 3a, so that the seat cushion 11A rotates around the support shaft 3a, so that the seat cushion 11A
When the hook 5 is pulled, the hook 15 is deformed and detached from the holder 16 as shown in the third figure.

(Effects of the invention) According to the invention, when a high load is applied to the hook used to prevent blind movement of the seat cushion in the raised state, the hook is deformed and engaged with the holder. Since this is forcibly released, it is possible to prevent the seat cushion and the seat back support portion from being destroyed, to which the locking member for preventing blind movement is attached.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the overall structure of the seat according to the embodiment of the present invention, FIG. 2 is a sectional view showing the main parts of the seat shown in FIG. 1, and FIG. FIG. 4 is a perspective view corresponding to FIG. 1 showing a conventional seat, and FIG. 5 is an explanatory diagram showing the function of the seat shown in FIG. 4. 11... Sheet, 11A... Seat cushion, 11B... Seat bag, 14... Band, 1
5...Hook, 16...Holder.

Claims (1)

[Scope of Utility Model Registration Claim] A seat cushion that can be raised and lowered using the front part as a fulcrum relative to the vehicle body structure, and a seat cushion that can be raised and lowered with respect to the vehicle body structure; A seat having a foldable seat back that can be folded down, the belt member having one end fixed to the back surface of the seat cushion and having a flexible hook at the other end; a holder provided on the back surface of the seat bag and having a locking part formed in a shape on which the hook of the band can be hung; when the seat cushion is flipped up, the hook and the holder are engaged with each other; An automobile seat characterized in that, when a predetermined amount of tensile force is applied to the band in a state where the hooks are fitted together, the hook is deformed to release the engagement between the hook and the holder. .