JP3503099B2 - Seat cushion structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat cushion structure used for vehicles and the like.

[0002]

2. Description of the Related Art A seat cushion structure used in a vehicle or the like, as shown in FIG. 9, is provided with a core member 31 for a seat pad 30 in order to support the weight of an occupant and to exert the strength of a seat belt for protecting the occupant. It is constructed by using a sheet metal frame or a pipe frame, and it is indispensable to cover the periphery thereof with some kind of skin material.

In this case, conventionally, the side of the seat pad 30 on which an occupant sits is covered with a skin cover 33, and
As shown in FIG. 10, the lower surface side of the core material 31 is usually a coated portion 35 with a coating, or, as shown in FIG. 11, a carpet portion 36 covered with a carpet as a skin material. .

[0004]

However, in the case of the above-mentioned conventional seat cushion structure, the seat pad 3 is used.
Since 0 itself has an integral structure as a whole, it is impossible to adopt a use form in which a seat pad having a two-part structure is used and these are stacked to be used as a child seat.

Further, when the above-mentioned conventional seat cushion structure is adopted and the seat pad 30 and the seat back 40 are folded to form a seat which can be folded forward, the carpet portion 36 is exposed as shown in FIG. However, in this case, the degree of freedom in design is poor, and its rigidity is limited in terms of the material of the skin material, so that the back surface side of the seat pad 30 cannot be effectively utilized, and it is also attractive in terms of appearance. There was a problem that there was not.

The present invention has been made in view of the above circumstances, can be used for both adults and children, has a high degree of design freedom, and can effectively utilize the back side. An object of the present invention is to provide a seat cushion structure that can be used for various purposes.

[0007]

The invention according to claim 1 is
A seat cushion structure including a seat frame and a seat pad placed on the seat frame,
The outer periphery of the seat frame is covered with a resin cover having a two-part structure including an upper resin cover and a lower resin cover.

According to a second aspect of the present invention, there is provided a seat cushion structure including a seat frame and a seat pad having a two-divided structure mounted on the seat frame, wherein an outer periphery of the seat frame is covered with an upper resin cover and It is characterized in that it is concealed by a resin cover having a two-part structure composed of a lower resin cover, and the upper surface of the upper resin cover, which is exposed when the seat pads having the two-part structure are stacked, can be used as a foot rest. .

A third aspect of the present invention is a seat cushion structure including a seat frame and a two-part structure that is placed on the seat frame and has a pair of seat pads having a stopper projection on one lower surface side. Then, when the outer periphery of the seat frame is covered with a resin cover having a two-part structure including an upper resin cover having a reinforcing member partially provided and a lower resin cover, and the seat pads having the two-part structure are stacked, The reinforcing member receives the load acting on the upper resin cover by the stopper projection of one of the seat pads.

According to a fourth aspect of the present invention, there is provided a seat cushion structure including a seat frame and a seat pad mounted on the seat frame, wherein an outer periphery of the seat frame is covered with an upper resin cover and a lower resin cover. It is characterized in that it is concealed by a two-part structure resin cover, and a pocket structure using a net is provided on the lower surface of the lower resin cover.

According to the seat cushion structure of the first aspect of the present invention, since the outer periphery of the seat frame is concealed by the resin cover having a two-part structure including the upper resin cover and the lower resin cover, the conventional seat cushion structure is obtained. In comparison, the rigidity of the outer peripheral region of the seat frame can be increased, and the degree of design freedom of the outer peripheral surfaces of the upper resin cover and the lower resin cover can be increased.

According to the seat cushion structure of the second aspect of the present invention, the same operation as the seat cushion structure of the first aspect of the invention is exhibited, and the seat pad having the two-divided structure is exposed. Since the upper surface of the upper resin cover can be used as a foot rest, this seat cushion structure can also be applied to children.

According to the seat cushion structure of the third aspect of the present invention, the same function as the seat cushion structure of the second aspect of the invention is exhibited, and the reinforcing member provided in a part of the upper resin cover is used. Since the load acting by the stopper projection of one of the seat pads is received when the seat pads having the two-divided structure are stacked, this seat cushion structure is provided similarly to the seat cushion structure according to the invention of claim 2. It can be applied to children, and one of the seat pads can be supported in a stable state.

According to the seat cushion structure of the fourth aspect of the present invention, the outer periphery of the seat frame is concealed by a resin cover having a two-part structure composed of an upper resin cover and a lower resin cover, and at the same time, the lower resin cover is covered. Since a pocket structure using a net is provided on the lower surface,
The same effect as the seat cushion structure according to the invention described above is exhibited, and the back side of the seat cushion can be effectively utilized as a pocket for storing articles and the like.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below. FIG. 1 is a schematic cross-sectional view showing a seat cushion structure according to an embodiment of the present invention. This seat cushion structure includes a seat frame 1 formed by using a sheet metal frame and a pipe frame, and a seat frame mounted on the seat frame 1. From the upper resin cover 5 and the lower resin cover 6 that cover the outer periphery of the seat frame 1, a pair of seat pads 2 and 3 having a stopper projection 4 at the lower surface side end of one seat pad 2 It has a resin cover having a two-divided structure and a seat back 7 arranged on the rear side of the upper resin cover 5 with a predetermined inclination angle. One seat pad 2 can be stacked on the other seat pad 3 by using a lift mechanism (not shown).

Now, the upper resin cover 5, the lower resin cover 6 and the seat frame 1 which are resin covers having a two-part structure will be described in detail with reference to FIGS. 2 to 4.

The seat frame 1 has a substantially U-shaped frame frame 11, a pair of support frames 12 for supporting a seat back 7 provided at both ends on the rear side of the frame frame 11, and a pair of support frames 12. It is provided with a frame shaft 13 and the like for connecting the two, and is formed in a substantially rectangular shape as a whole.

The upper resin cover 5 and the lower resin cover 6
Are made of synthetic resin, and their planar shapes are formed to be substantially the same, and the outer periphery of the seat frame 1 is concealed by integrally connecting them in a vertical arrangement.

On the rear side of the upper resin cover 5, the stopper portion 1 is arranged so as to be higher than the other portions, and the stopper projection 4 provided at the end portion on the lower surface side of the seat pad 2 abuts.
4 are provided. Further, a large number of grooves are formed on the front side of the upper resin cover 5 in a direction orthogonal to the direction connecting the front and the rear, so that it can be used as the child footrest portion 15.

Here, a connection structure of the upper resin cover 5 and the lower resin cover 6 will be described with reference to FIGS. 3 and 4. A bent portion 5a and a bent portion 6a are formed on the outer peripheral portions of the upper resin cover 5 and the lower resin cover 6, respectively, so as to face each other and be joined.

A large number of engaging recesses 5b are formed at a predetermined interval in the inner peripheral portion slightly above the lower end edge of the bent portion 5a. In addition, an engaging convex portion 6b which is engageable with each of the engaging concave portions 5b is formed at an upper edge of the bent portion 6a at a predetermined interval, and the upper resin cover 5 and the lower resin cover 6 are overlapped with each other. In addition, by engaging the engaging convex portions 6b with the engaging concave portions 5b, the upper resin cover 5 and the lower resin cover 6 are integrally coupled, and the seat frame 1 is concealed by these. There is.

The seat cushion structure of this embodiment is
Further, as shown in FIGS. 5 and 6, a pocket structure 2 using a net 16 on the lower surface (back surface) of the lower resin cover 6 is provided.
0 is set.

The pocket structure 20 includes a net 16 and
A U-shaped net frame 17 to which both left and right edges and a lower edge of the net 16 are attached, and a projecting piece 17b protruding from a bottom portion 17a to which the lower edge of the net 16 of the net frame 17 is attached. And a projecting piece receiving portion 18 into which the projecting piece 17b provided on the lower resin cover 6 can be inserted.

Then, the projection 17b of the net frame 17 to which the net 16 is attached is fitted into the projection receiving portion 18 provided on the lower resin cover 6, whereby the net frame 17 is placed on the lower surface side of the lower resin cover 6. , Thereby forming a pocket structure 20 capable of accommodating books, newspapers, etc. on the lower surface side of the lower resin cover 6.

Next, the operation of the seat cushion structure having the above-described structure will be described with reference to FIGS. 7 and 8.

In the seat cushion structure having the above-mentioned structure, when the seat pad 2 having a two-part structure is placed on the seat pad 3 as shown in FIG. 7 and the child M is seated on the seat pad 2, the upper resin The footrest portion 15 provided on the upper surface of the cover 5 is exposed, so that the footrest portion 15 can be used for footrest of the child M.

When the seat pad 2 is overlaid on the seat pad 3 as shown in FIG. 8, the seat pad 2
The stopper projections 4 provided on the lower surface side end portion of the above contact the stopper portion 14 provided on the rear side of the upper resin cover 5.

In this case, the reinforcing member 19 integrated with the upper resin cover 5 is previously provided by resin molding on the lower side of the stopper portion 14 of the upper resin cover 5 (the inner surface side of the upper resin cover 5). The load due to the weight of the child M acting on the stopper portion 14 via the stopper projection 4 of the seat pad 3 can be stably received by the stopper portion 14 of the upper resin cover 5.

Further, the pocket structure 20 provided on the lower surface side of the lower resin cover 6 enhances the design effect and can accommodate books, newspapers, etc., so that the lower surface side of the lower resin cover 6 can be effectively utilized. be able to.

[0030]

According to the first aspect of the present invention, the rigidity of the outer peripheral region of the seat frame can be increased as compared with the conventional seat cushion structure, and the outer peripheral surfaces of the upper resin cover and the lower resin cover are designed. It is possible to provide a seat cushion structure capable of expanding the degree of freedom.

According to the second aspect of the present invention, it is possible to provide a seat cushion structure which has the same effect as that of the first aspect of the present invention and can be applied to children.

According to the third aspect of the present invention, it is possible to provide a seat cushion structure which has the same effect as that of the second aspect of the invention and which can obtain a stable supporting state.

According to the invention described in claim 4, there is provided a seat cushion structure which has the same effect as that of the invention described in claim 1 and can effectively utilize the back side of the seat cushion as a pocket for accommodating articles and the like. be able to.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an embodiment of a seat cushion structure of the present invention.

FIG. 2 is an exploded perspective view showing an upper resin cover, a seat frame, and a lower resin cover of the present embodiment.

FIG. 3 is an enlarged view showing a connecting structure of an upper resin cover and a lower resin cover of the present embodiment.

FIG. 4 is a partially exploded cross-sectional view showing a coupling structure of an upper resin cover and a lower resin cover according to the present embodiment.

FIG. 5 is a perspective view showing a pocket structure on the back side of the seat cushion of the present embodiment.

FIG. 6 is an assembly explanatory diagram of a pocket structure on the back surface side of the seat cushion of the present embodiment.

FIG. 7 is a schematic view showing a state in which one seat pad is overlaid on the other seat pad in the seat cushion structure of the present embodiment.

FIG. 8 is a partially enlarged view showing a state in which one seat pad in the seat cushion structure of the present embodiment is overlaid on the other seat pad.

FIG. 9 is a schematic view showing a conventional seat cushion structure.

FIG. 10 is an explanatory view showing the structure on the back surface side in the conventional seat cushion structure.

FIG. 11 is an explanatory view showing another structure on the back surface side in the conventional seat cushion structure.

FIG. 12 is an explanatory view showing a folded state of a conventional seat cushion structure.

[Explanation of symbols]

1 seat frame 2 seat pad 3 seat pad 4 Protrusion for stopper 5 Upper resin cover 5b Engagement recess 6 Lower resin cover 6b engaging protrusion 7 seat back 13 frame shaft 14 Stopper part 15 foot rest 16 net 17 Net frame 20 pocket structure

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B60N 2/44 B60N 2/26 B60N 2/30

Claims (4)

(57) [Claims] 1. A seat cushion structure comprising a seat frame and a seat pad mounted on the seat frame, wherein the outer periphery of the seat frame has a two-part structure consisting of an upper resin cover and a lower resin cover. A seat cushion structure characterized by being covered with a cover. 2. A seat cushion structure comprising a seat frame and a seat pad having a two-part structure mounted on the seat frame, wherein an outer periphery of the seat frame is composed of an upper resin cover and a lower resin cover. Concealed with a resin cover with a split structure,
A seat cushion structure, wherein an upper surface of an upper resin cover exposed when the seat pads having the two-divided structure are stacked can be used for foot rest. 3. A seat cushion structure, comprising: a seat frame; and a pair of seat pads that are mounted on the seat frame and have a stopper projection on one lower surface side. The outer periphery is concealed by a resin cover having a two-part structure composed of an upper resin cover partially provided with a reinforcing member and a lower resin cover, and when the two-part structure seat pads are stacked, a stopper for one seat pad A seat cushion structure in which a load acting on the upper resin cover by the projecting projection is received by the reinforcing member. 4. A seat cushion structure comprising a seat frame and a seat pad mounted on the seat frame, wherein the outer periphery of the seat frame has a two-part structure consisting of an upper resin cover and a lower resin cover. A seat cushion structure characterized by being covered with a cover and having a pocket structure using a net provided on the lower surface of the lower resin cover.