JPS58159782A - Seat body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a molded skin seat body, in particular a seat body with a non-breathable molded skin.

Conventionally, when attaching a non-breathable integrally molded skin to a frame part, in order to avoid impairing the non-breathability of the skin, the skin itself does not have a mounting part and is attached via other parts, making it easy to install. There wasn't.

The present invention seeks to improve the attachment of this type of skin to the frame part.

That is, a first object of the present invention is to provide a seat body in which the peripheral edge of the skin of the seat body is pre-shaped so that it can be easily attached to a frame portion.

A second object of the present invention is to provide a seat body with improved airtightness so that the hardness of the seat can be adjusted by changing the air pressure in open urethane cells inside one skin.

A third object of the present invention is to provide a seat body in which the stiffness of the seat can be partially adjusted.

Other objects of the invention will become apparent from the following description of the prior art and preferred embodiments of the invention.

FIG. 1 shows a conventional seat body with a non-breathable skin.

In order to blow mold the skin 1 and attach it to the frame (pan frame) 3 while covering the entire outer periphery of the internal urethane mold (cushion material) 2, the skin 1 does not have an attachment part, so other parts (not shown) are required. It is not easy to install because it is installed through the Further, since there is a continuous venting urethane mold inside the skin 1, there is an air vent 4 for letting the air inside this mold go in and out to the outside.

In Fig. 2, an air volume adjustment passage 5 (opened and closed by a valve not shown) is provided in place of the air passage 4 in Fig. 1, and the air volume inside the urethane 2 is adjusted to adjust the hardness of the seat. It is. In this case as well, as in Figure 1, it is difficult to attach the skin 1 to the frame 3, so the illustration is omitted. (same) makes it difficult to maintain airtightness.

FIG. 3 shows a first embodiment of the present invention. FIG. 5 is an enlarged view of a portion thereof. The skin 1 is a molded skin obtained by integrally molding a non-breathable thermoplastic material using a mold. This skin 1 can be obtained, for example, by two-cavity blow molding, which will be described later with reference to FIG. 10, and is characterized by the formation of a recess 1' at the periphery of the skin.

A frame 3 having a chevron-shaped cross section is pushed into this recess 1',
Furthermore, by pressing and attaching the board 6 to the bottom, the skin l can be securely and substantially mounted at its peripheral edge, especially by sandwiching the lower 7 lunges of the convex part 1' between the frame 3 and the board 6. It is then airtightly fixed to the frame.

Prior to this attachment, a continuous air-cutting foamed urethane mold 2 is glued into the inside of the skin 1, and after this fixation, the frame 3 and the base &6 are attached. In this way, the entire gap constitutes an independent airtight body, and the elasticity is adjusted via the air vent 4 provided in the substrate 6.

In the second embodiment shown in FIG. 4, a concave portion l' and a convex portion 1'' are formed at the peripheral edge of the skin 1.

In this embodiment, the substrate 6 is inserted into the convex portion 1'', and from above the U-shaped frame or clip 7 is inserted using the concave portion l', and the skin flanges located above and below the substrate 6 are inserted. Hold it firmly (to form a double seal between base & 6).

This type of skin periphery can be obtained, for example, by double blow molding as shown in FIG. FIG. 6 is an enlarged view of this embodiment. An air amount adjustment path 5 is provided on the substrate 6 and communicates with the inside. A valve (not shown) is provided in this air amount adjustment path 5, and the amount of air inside is adjusted by this valve to adjust the hardness of the seat. This second embodiment is suitable as a seat body for a two-wheeled motorcycle.

FIG. 7 shows a third embodiment, in which the skin l has concave portions and convex portions formed by two-cavity blow molding as shown in FIG. 12. A protrusion 6A is fixed to the upper part of the substrate 6, and the outside of the recess is inserted between the base &6 and the protrusion 6A, and the convex part is inserted into the base &6, and the protrusion 6A is inserted into the recess. Insert and fix the string-shaped clip 8. Since such a fixing method forms multiple seals, the reliability of the seal is further improved.

FIG. 8 shows an embodiment in which a skin 1 is attached to a frame (U-shaped FF frame) 3A.

In FIG. 9, the skin 1 is fixed between the frame 3 and the board 6 using a sheath. Moreover, this FIG. 9 is an enlarged view of FIG. 17.

The shape of the portion of the skin I to be attached to the frame has been described above, and next we will explain the case of blow molding the skin I with one piece and two pieces.

10, 11, and 12 each show the cross-sectional shape of the blow-molded skin 1 in the case of two pieces (the cross-sectional shape of the entire seat body of the skin 1 is omitted); , 11th
Fig. 12 shows the portions in which two pieces can be taken at a%i 0% in Fig. 12) are attached to the frame in each of Figs. 5 to 9. The above-mentioned a, b, and c are also shown in FIGS. 5 to 9.

13, 14, 15, and 16 are cross-sectional views of the attachment part of the substrate 6 of the skin 1, and also show the case of a single-piece bag shape in blow molding (the blow molded skin 10 13 is an enlarged view of FIGS. 18 and 19.

In the case of a single-piece bag, the urethane to be filled inside is injected with unfoamed urethane material inside the bag-like skin while it is still in the mold, and then integrally molded on the spot. It is preferable to form an open-cell urethane foam 2 that is in close contact with the epidermis 1.

0-shaped clip 7 and 1-shaped clip 8 in the above embodiments, without using a tanker, etc., directly bonding the skin and frame, or if the frame is made of tree power, etc., use commercial frequency, ultrasonic waves, or other heat. It can also be fused.

In the embodiment shown in FIG. 17, the skin of the seat body is divided into a divided molded skin IA of the seating part and divided molded skins IB and I of the bucket parts on the left and right.
The three parts of C are divided into independent airtight bodies, each of which has an air passage 5 to adjust the amount of air it holds, and partially adjusts the hardness.
It is fixed in the shape shown in the figure.

Although not shown, urethane may be interposed between the outer skin 1 and the inner skins IA, IB, and IC. I
A, IB, and IC are single pieces in the case of blow molding.

In Fig. 18, the outer skin 1 of the outer 9111 that covers the outer periphery of Fig. 17 is blank (it is still divided into three parts).The fabric skin 11 is attached to the skin IAO of the seating part, and the skin 1 is made of vinyl, for example. In the case of , it gives the feeling of textile. IA, IB
, Ic is a single cavity of blow molding.

Figure 19 is a cross-sectional view of a two-wheeled vehicle seat, and Figure 20 is a cross-sectional view of a two-wheeled vehicle seat.
This is a cross section taken along line XX in the figure.

The bag bottom-shaped portion 1a of the skin l is formed by bending the skin l upward from the substrate 6 side, and the part that contacts the upper part of the skin l is touched, as shown in FIGS. 19 and 20. In the figure, the skin 1 forms three independent wrappings. A urethane mold 2 is provided inside these, and each air passage 5 is used to adjust the amount of air inside the bag-like interior and adjust the partial hardness of the sheet. The substrate 6 is the one 6A shown in FIG. 7 attached from the outside.

Figure 21 shows the bag bottom shape of Figures 19 and 20.
The space between a and 6 is widened and molded as lb and lb, the fused surface in contact with the skin 1 is widened, and urethane is contained in the space formed by base &6.

FIG. 22 has a divided striped skin ID inside the sheet,
This and the air passage 5 are used to adjust the amount of air inside and partially change the hardness of the sheet. The ID is connected to the substrate 6 by a 0-shaped clip 7. The inside of the ID may have a ureter/.

As described above, the parts shown in Figs. 20-23 can be molded by single-cavity blow molding. However, it is also possible to have two skins l in FIG. 22.

19, 20, and 21 may have a structure in which they are covered twice from the outside by the skin 1 shown in FIG. 17. Or the 18th
A structure such as attaching a fabric skin 11 as shown in the figure can be used in combination. This is especially true for 1 in Figures 19, 20, and 21.
This is necessary if the molded parts such as a and 1b are not done exactly as shown in the drawings and the shape collapses.

FIG. 23 shows a cross section of the skin 1 in which the mounting screw cap 11 of the air passage 5 is molded integrally with the skin l.

FIG. 24 The air passage 5 mounting screws @12 are separately inserted into the skin 1 and integrally molded into the skin material.

According to the present invention, the molded skin and urethane are formed by foaming the urethane together after molding the skin, or by bringing the foamed urethane into contact with the skin and fixing it. Using urethane only for the air bag provides the following two effects compared to the case without it.

b) Even if the skin were torn and air came out, the urethane inside the skin provides cushioning and will not cause caving.

(Mouth) The urethane skin is fixed, so even if the amount of air inside increases, only the skin will not expand.

The outer skin 1 may have two layers, and the inner layer may be formed of a mixture of reinforcing material such as glass fiber. Further, a separate layer may be brought into close contact with a necessary portion outside the skin 1 for reinforcement.

The above explanation is based on blow molding, but it is not limited to blow molding (for example, makai molding, pressure molding using a mold after heating, or slush manufacturing method is also applicable to the purpose of the present invention). It is sufficient that they are the same.Also, the material of the constituent members is not limited, and may be made of resin, for example, as long as it meets the purpose of the present invention.The cushioning material is not limited to urethane mold (but other materials may also be used). Even if it's a cushion kid ().

The above explanation has been about the seat body, but the range of applications is wide, as it is suitable for vehicle door bats, armrests, headrests, and other interior parts, as well as for handguns.

[Brief explanation of the drawing]

1 and 2 are longitudinal cross-sectional views of different conventional seat bodies, FIG. 3 is a longitudinal cross-sectional view of a first embodiment of the present invention, and FIG. 4 is a longitudinal cross-sectional view of a second embodiment of the present invention. Front view, Figure 5 is the 3rd
FIG. 6 is a partially enlarged sectional view of the first embodiment shown in the figure.
FIG. 7 is a partially enlarged sectional view of the second embodiment shown in the figure.
FIGS. 8 and 9 are partially enlarged sectional views of different examples, and FIGS. 10 to 12 each show two skins when two skins are taken and blow molded. Enlarged sectional view of only the connecting part, 1st
Figures 3 to 16 are partially enlarged cross-sectional views of different embodiments in which a single skin is blow-molded;
Figures 17 and 18 are longitudinal cross-sectional views of different embodiments in which the skin is divided into parts, Figure 19 is a cross-sectional view of a two-wheeled vehicle seat, and Figure 20 is taken along x-xh in Figure 19. 21 is a partially enlarged sectional view of a modified example, and FIG. 22 is a sectional view along the line.
The figure is a cross-sectional view of a different motorcycle seat, Figure 23 is a cross-sectional view showing the mounting screw part of the air passage integrally molded into the skin, and Figure 24 is a cross-sectional view of an embodiment in which the mounting screw part is inserted as a separate piece. It is. 1.Skin, 2.Continuously foamed urethane, 3.Frame, 4.Air vent, 5.Air volume adjustment path, 6.Substrate. Figure 3 Ryo Figure 5 Figure %6 Figure F3 Figure 17 Figure 1b Figure Whistle 19 Figure P! A20Figure 21Figure 32Figure 73Figure 24D

Claims (1)

[Scope of Claims] (In a seat body having a structure in which a skin integrally molded by Type 11 is fixed to a frame part, the skin is directly fixed to the frame part by using a recess or a convex part formed on the peripheral edge of the skin. (2. In the seat body according to claim 1, the frame portion attachment end of the skin is further sandwiched from the outside by a substrate and fixed to the frame portion. A seat body characterized by: (3) The seat body according to claim 1 or 2, characterized in that the skin is integrally molded into two pieces, which are divided from the center and used. Seat body. (4J In the seat body according to claim 1 or 2, the skin is integrally molded into a bag shape with 11 fixations, and a continuous pneumatic urethane mold is integrated inside this bag-like skin. A seat body characterized in that the elastic hardness can be adjusted by adjusting the internal air amount by forming an air amount adjustment path that penetrates the bag-like skin and leads to the inside. 5) In the seat body according to claim 2, an open-cell urethane mold is disposed inside the skin and adhered to the skin, and an air volume adjustment path leading to the inside is formed in the substrate, and the inside A seat body characterized in that the elastic hardness can be adjusted by adjusting the amount of air. Divide into bags,
A seat body characterized in that the amount of air inside each independent airtight body can be adjusted individually. (Force) The seat body according to claim 6, characterized in that each bag is formed of one skin. (8) The seat body according to claim 6 or 7. In the seat body, the entire outer side of the independent airtight body is covered with a skin integrally molded. (9) In the seat body according to claim 1, the skin A seat body characterized by having two layers and increasing the strength of the inner skin layer.