JPH0324111Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement of a seat primarily used for vehicles, which is provided with side portions for side support on both sides.

(Prior Art) Some vehicle seats are equipped with side sections on both sides of the main part of the seat cushion to maintain a good seating condition, and various devices have been added to the side sections so as not to interfere with passengers getting on and off the vehicle. There are some things that are elaborate. One example is one in which the side part B moves up and down relative to the main part A, as shown in Figure 4.Various means have been adopted for the mechanism for this up and down movement, but usually the operation is performed by a seated person. This is troublesome because it is done manually, and a locking device is required when the side portion B is located at the upper position, which poses a problem in that the mechanism becomes complicated.

In addition, as shown in Fig. 5, side support members D are attached to both ends of the cushion spring C at the bottom of the seat cushion, and the side portion is moved toward the main portion by the deflection of the cushion spring C when the seat cushion is seated. There are some models that automate the operation of the side part by raising it up, but in this example,
Since the side portions are always loaded with rotational force toward the main portion in the seated state, the body of the seated person is pressed by the side portions.

(Purpose) In view of these points, the present invention has a simple structure, and while the side part automatically rises when the seated person takes a seat, the side part automatically rises to the main part when the seated person leaves the seat. The purpose is to provide a seat that can descend in the same plane and ensure a good seating condition, and its feature is that the seat has side sections on both sides of the main section of the seat cushion. The main air mat is housed in the main part, and at least one of the left and right side parts is formed of a side part main body made of a pad, a skin material, etc.;
A sub air mat is provided at the lower part of the side part main body and communicates with the main air mat via a pipe member, and the side part main body extends along a guide part formed on the side of the main part. The auxiliary air mat is attached to the side of the main part so that it can move up and down, and when a load is applied to the main part and air from the main air mat flows into the auxiliary air mat, the auxiliary air mat moves the main body of the side part along the guide part. The point is that it is pushed up.

(Example) The present invention will be described in detail below based on the illustrated example.

1 to 3 show a vehicle seat according to an embodiment of the present invention, and reference numeral 1 in the figures indicates a seat shoe placed in the center of a cushion frame 3 to which a cushion spring 2 is attached. A main air mat 5 is housed inside the main air mat 5 over almost the entire upper surface thereof, and on both sides thereof are guides on which protrusions 13 of a side body 10 (to be described later) are guided and slid. Guide grooves 6, 6 as parts
Two lines are formed.

Reference numeral 7 denotes side parts attached to both sides of the main part 1, including a side part main body 10 consisting of a pad 8 of a desired shape and a wire 9 for retaining its outer surface, and a lower part of this side part main body 10, It is composed of a sub-air mat 11 that expands when air flows into the interior and pushes the side main body 10 upward.
1 is formed independently from the main part 1 by a cover 12 that covers the entire outer surface of the main part 1. A protrusion 13 is provided on the inner side of the side body 10 so as to move the side body 10 upward by being guided and slid by the guide grooves 6, 6 serving as guide portions of the main portion 1.

Further, the sub-air mat 11 and the main air mat 5 are communicated with each other by a flexible pipe member 14 such as a hose, and a predetermined amount of air is kept inside both the mats 5 and 11, i.e., when the main part 1 is not seated. In this state, the sub air mat 11 is compressed by the weight of the side body 10, while in the seated state of the main part 1, air from the main air mat 5 is compressed by the weight of the side body 10.
A sufficient amount of air is sealed to push up the side part main body 10 that has flowed into the inside of the main body 10.

In this seat, when the seat is not seated, the auxiliary air mat 11 can be compressed by the weight or pressure of the side body 10, and as seen in FIG. 1
and its upper surface are lowered to approximately the same level so that they do not get in the way when getting on and off. and,
When a passenger sits down on this seat, the air is supplied to the auxiliary air mat 11 through the air hose 14 in the main air mat 5 of the main part 1, and the side part main body 10 is guided into the guide grooves 6, 6 by the air pressure. It will automatically be pushed upwards.

In the above-mentioned embodiment, both the left and right side parts on both sides of the main part have a characteristic structure having the above-mentioned sub air mats, but the present invention is not limited to this, and any of the left and right side parts On the other hand, for example, the side portion on the side of the passageway inside the vehicle may have such a structure, and it is of course applicable not only to vehicle seats but also to various seats.

(Effects) As described above, according to the present invention, at least one side portion of the left and right side portions on both sides of the main portion is formed of a side portion main body formed of a pad material, a skin material, etc. The main air mat is connected to the main air mat housed in the main part through a pipe member, and the main part is controlled by the action of the air flowing into the sub air mat. The main body of the side part is configured to be movable up and down along the guide part formed on the side part, so the structure is not only simple, but also provides a good sitting condition without putting pressure on the body of the seated person. Moreover, the cushioning properties of the main part itself can be improved by the air in the main air mat.

Furthermore, according to the present invention, the air sealed in both air mats is compressed by the weight or pressure of the side body of the secondary air mat in the non-seated state, while the air from the main air mat is compressed in the seated state. The amount of air flowing into the secondary air mat is set to be sufficient to push up the main body of the side part, so when the seated person is seated, the side part automatically rises to hold the seated person firmly. Since the side portion can be lowered when it comes to the stage where the seat leaves the seat, it is possible to obtain a seat that can automatically eliminate obstructive protrusions.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of a vehicle seat according to an embodiment of the present invention, FIGS. 2 and 3 are explanatory diagrams showing the operating states of the main parts of the same seat, and FIGS. 4 and 5 are conventional FIG. 2 is an explanatory diagram showing the main parts of the device. In the figure, 1 is the main part of the seat, 5 is the main air mat, 6 is the guide groove, 7 is the side part, 10 is the main body of the side part, 11 is the sub air mat, 12 is the cover,
Reference numeral 14 indicates a pipe line.

Claims (1)

[Scope of utility model registration request] In a seat comprising side parts on both sides of the main part of the seat cushion, the main air mat is housed in the main part, and at least one of the left and right side parts is made of a pad, a skin material, etc. and a sub-air mat which is located at the lower part of the side part body and communicates with the main air mat via a pipe member, and the side part main body is connected to the side part of the main part It is attached to the side of the main part so that it can move up and down along a guide part formed in the main part, and when a load is applied to the main part and the air from the main air mat flows into the sub air mat, the sub air mat moves to the side part main body. The sheet is adapted to be pushed up along the guide portion.