JPH0617542U - Car seat - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a vehicle seat that can always secure an appropriate holding force and can improve seat performance such as sitting comfort. [Structure] At a connecting portion of the seat cushion 1 and the seat back 2, a cloth body 4 that can form a seating surface is stretched in a hammock manner from a rear portion of the seat cushion 1 to a lower portion of the seat back 2. The cloth body 4 is formed to be separable by a plurality of cloth pieces 5 and 6, and a plurality of joint positions of the cloth pieces 5 and 6 are set, and the length of the cloth body 4 stretched on the seating surface. Can be adjusted.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a reclining type automobile seat having a seat cushion and a seat back.

[0002]

[Prior art]

In a reclining type automobile seat mounted on a vehicle such as a passenger car, as shown in FIG. 6, an occupant M seated on a seat cushion 1 can lean a seat back 2 forward and backward as appropriate to obtain a desired riding posture. You can take When the seat back 2 is tilted, its rotation axis 3 is set at the most structurally advantageous position, that is, behind the buttocks M ₁ of the seated occupant M. Therefore, a substantially triangular gap S as shown is formed between the joint between the seat cushion 1 and the seat back 2 and the buttocks M ₁ . Further, because of the existence of the gap S, the buttocks M _{1 of the} occupant M do not come into contact with the seat, which is not preferable for seat performance such as sitting comfort.

By the way, when the occupant M sits on the seat, the buttocks M ₁ are extremely important parts for maintaining the body shape. Further, it is preferable that the holding force of the portion corresponding to the gap S is a minute holding force from the reason of the skeleton of the human body such as the tailbone of the occupant M being located there. Here, FIG. 7 shows the state of change in the seat holding force with respect to the seated occupant M. In the case of the seat shown in FIG. 6, the portion corresponding to the gap S as shown in FIG. 7 (a). The holding power drops sharply and disappears. Incidentally, as an ideal holding force, as shown in FIG. 7 (b), a minute holding force is obtained near the coccyx and it changes smoothly.

Conventionally, in order to solve the problem of the seat performance of this kind of automobile seat, for example, as shown in FIG. 8, the lower end portion of the seat back 2 is formed so as to be aligned with the buttocks M _{1 of the} occupant M. Things are known. Further, as shown in FIG. 9, it is also known that the rotary shaft 3 of the seat back 2 is displaced upward and the rear portion of the seat cushion 1 is raised along the body shape of the buttocks M ₁ .

[0005]

[Problems to be solved by the device]

However, in the case of the conventional vehicle seat shown in FIG. 8 in such a conventional vehicle seat, the lower end portion of the seat back 2 does not interfere with the seat cushion 1 when the seat back 2 is tilted forward ( It cannot be defeated any more. Although the size of the buttocks M ₁ of the occupant M varies from person to person, the shape of the lower end of the seat back 2 cannot cope with such an individual difference, that is, fits all occupants' body shapes. Therefore, it was difficult to secure the minute holding force near the coccyx as described above.

Further, in the case of the automobile seat shown in FIG. 9, the change in the holding force at the joint portion of the seat cushion 1 and the seat back 2 is remarkably changed, which causes a feeling of foreign matter at the joint portion. . Furthermore, even in the case of this automobile seat, it was difficult to secure a minute holding force near the coccyx.

In view of the above situation, an object of the present invention is to provide an automobile seat that can always secure an appropriate holding force and can effectively improve seat performance such as sitting comfort.

[0008]

[Means for Solving the Problems]

 The automobile seat of the present invention has a hammock-type stretchable cloth body that can form a seating surface from the rear part of the seat cushion to the lower part of the seat back at the joint between the seat cushion and the seat back. is there.

The cloth body is formed so as to be divided by a plurality of cloth pieces, and a plurality of contact positions of the cloth pieces are set, so that the length of the cloth body stretched over the seating surface can be adjusted. You can adjust it.

Further, the divided pieces of cloth are designed to be integrally stored along the surfaces of the seat cushion and the seat back.

[0011]

[Action]

 According to this invention, by holding the buttocks of the occupant by the hammock-type stretched fabric at the joint portion of the seat cushion and the seat back, an almost ideal holding force is secured. That is, since the buttocks come into contact with the cloth body at the joint portion of the seat cushion and the seat back, the contact area of the buttocks is substantially increased, and thereby a minute holding force is obtained near the coccyx and the seat cushion or The pressure change to the buttocks when leaving the seatback is gentle.

Further, by appropriately selecting the joining position of the cloth pieces constituting the cloth body and adjusting the length of the cloth body, the shape and the seat size can be matched with the body shape of the occupant. Therefore, it is possible to reliably respond to individual differences in the body shape of the occupant, and an ideal holding power is always secured.

Further, when the cloth body is not used, the cloth pieces are stored integrally with the seat cushion or the seat back, and thus, the cloth pieces can be stored in an orderly state without any obstruction.

[0014]

【Example】

 An embodiment of an automobile seat according to the present invention will be described below with reference to FIGS. 1 to 5 by using the same reference numerals as those used in the conventional example. In FIG. 1, the seat back 2 can be tilted back and forth via a rotary shaft 3 set at the rear portion of the seat cushion 1. At the joint between the seat cushion 1 and the seat back 2, a hammock type cloth 4 is stretched in a hammock manner from the rear portion of the seat cushion 1 to the lower portion of the seat back 2 to form a seating surface. The cloth body 4 is formed by a cloth piece 5 and a cloth piece 6 so as to be divided.

FIG. 2 shows an example of the structure of the cloth body 4. Here, the seat cushion 1 has a cover 1a, a pad 1b and a frame 1c, and the seat back 2 has a cover 2a and a pad 2b. And a frame 2c. The front end of the cloth piece 5 (the front is indicated by an arrow F) is sewn to the seat cushion 1 (see FIG. 3), and a fastener (female) 7 is sewn to the seating surface side at the rear end thereof. Has been. Velcro fasteners 8 are sewn to the back surface of the fastener 7 of the cloth piece 5 at three positions, while the seat cushion 1 is attached to the cover 1a at three positions corresponding to the velcro fasteners 8 at the corresponding positions. Is sewn on.

The upper end of the cloth piece 6 (the upper part is indicated by an arrow U) is sewn to the seat back 2 (see FIG. 3), and the lower end of the cloth piece 6 has a plurality of fasteners (male) on the seating surface side. ) 10, 11, 12 (three in this example) are sewn to each other at regular intervals. Velcro fasteners 13 are sewn on the back surface of the fastener 12 of the cloth piece 6 at three positions. On the other hand, a velcro fastener 14 is sewn to the cover 2a of the seat back 2 at a position corresponding to the velcro fastener 13.

The vehicle seat of the present invention is constructed as described above, and its operation will be described below. For example, as shown in FIG. 2, one piece of cloth body 4 is formed by engaging the fastener 7 of the cloth piece 5 and the fastener 11 of the cloth piece 6. The cloth body 4 is stretched in a hammock manner at the joint portion of the seat cushion 1 and the seat back 2. The cloth body 4 is arranged at a position corresponding to the gap S described in the conventional example, and holds the vicinity of the buttocks M _{1 of the} occupant M seated on the seat. As a result, the contact area of the buttocks M ₁ is substantially increased, and a minute holding force is obtained near the tailbone of the occupant M.

Here, FIG. 4 shows a change in the holding force by the cloth body 4 stretched as described above, but as is clear from the figure, a small holding force is generated in the vicinity of the tailbone of the occupant M. At the same time, the pressure change when the buttocks M ₁ is separated from the seat cushion 1 or the seat back 2 is gentle.

Further, by appropriately selecting the joining positions of the cloth pieces 5 and 6 which form the cloth body 4 and adjusting the length of the cloth body 4, it is possible to match the body shape of the occupant M. That is, by engaging the fastener 7 of the cloth piece 5 with any of the fasteners 10, 11, 12 of the cloth piece 6, the length is adjusted so as to fit the body shape of the occupant M, particularly the buttocks M ₁ . The cloth body 4 constitutes a seating surface.

The cloth body 4 stretched around the joint portion of the seat cushion 1 and the seat back 2 is easily divided into cloth pieces 5 and 6 by removing the fastener 7 and the fasteners 10, 11 or 12. . As shown in FIG. 5, the divided cloth pieces 5 are integrally stored along the cover 1a of the seat cushion 1 by attaching the Velcro fasteners 8 to the Velcro fasteners 9. On the other hand, the cloth piece 6 is integrally stored along the cover 2a of the seat back 2 by attaching the Velcro fastener 13 to the Velcro fastener 14, and thus when the cloth body 4 is not used, It can be stored neatly and these pieces of cloth 5, 6 do not interfere with the use of the seat at all.

In the above embodiment, the number of fasteners 10, 11, 12 of the cloth piece 6 may be increased or decreased as necessary, and the attachment relationship between the cloth piece 5 and the cloth piece 6 may be changed. The above-described embodiment may be reversed, and in any case, the same effect as the above can be obtained.

[0022]

[Effect of device]

 As described above, according to the present invention, the hammock-type stretched fabric body can hold the occupant's buttocks, and the poor holding force due to the triangular gap, which has been a problem in the past, can be eliminated. Therefore, it becomes possible to secure an ideal holding power. In addition, by appropriately selecting the joining positions of the cloth pieces that make up the cloth body and adjusting the length of the cloth body, it is possible to respond effectively to the occupant's body shape, especially the individual differences in the buttocks, and always obtain an ideal condition. Secure holding power. Further, when the cloth body is not used, it has an advantage that it can be stored in an orderly state without any hindrance.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of an automobile seat according to the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is an exploded perspective view of an essential part of the vehicle seat of the present invention.

FIG. 4 is a diagram showing a change state of a holding force when a passenger is seated in the embodiment of FIG.

FIG. 5 is a cross-sectional view of the automobile seat when the cloth body is stored.

FIG. 6 is a diagram showing a basic configuration of a conventional reclining type automobile seat.

FIG. 7 is a diagram showing a change state of a holding force when a passenger is seated in a conventional reclining type automobile seat.

FIG. 8 is a diagram showing a specific configuration example of a conventional automobile seat.

FIG. 9 is a diagram showing another specific configuration example of the conventional vehicle seat.

[Explanation of symbols]

 1 seat cushion 2 seat back 3 rotating shaft 4 cloth body 5,6 cloth piece 7,10,11,12 fastener 8,9,13,14 velcro fastener

Claims (3)

[Scope of utility model registration request] 1. A hammock-type stretchable cloth body constituting a seating surface is provided at a joint portion between a seat cushion and a seat back from a rear portion of the seat cushion to a lower portion of the seat back. Automotive seat. 2. The cloth body is formed so as to be divided by a plurality of cloth pieces, a plurality of joint positions of the cloth pieces are set, and the length of the cloth body stretched over the seating surface is set. The height is adjustable so that the height can be adjusted.
The automobile seat described in. 3. The vehicle seat according to claim 2, wherein the divided pieces of cloth are integrally stored along the surfaces of the seat cushion and the seat back.