JPH0642513Y2 - Vehicle interior member structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an improvement of an interior member for a vehicle.

[Prior Art] As a conventional vehicle interior member (seat), for example,
There is something like the one shown in the figure.

This vehicle interior member is disclosed in Japanese Utility Model Laid-Open No. 61-113667, and a plurality of bags 2 which are inflatable by a fluid pressure are provided inside each of the seating side and backrest side interior members (seats) 1. A pressurized fluid supply means (not shown) is connected to these bags 2 and a plurality of pressure sensors 3 are built in. The output signals of the pressure sensors 3 set the pressures of the bags 2 corresponding to the pressure sensors 3. Until the pressure reaches the point (1), the pressurized fluid is supplied from the pressurized fluid supply means in the bag 2.

As a result, by changing the pressure applied to each of the bags 2, the shape and pressure of the interior member (seat) 1 can be arbitrarily changed according to the body shape and weight of the occupant.

[Problems to be Solved by the Invention] However, in such a conventional vehicle interior member (seat), a plurality of bags 2 are provided in the seat 1,
Moreover, since a plurality of pressure sensors 3 are provided also in these bags 2 and the piping from the pressurized fluid supply means corresponding to each bag 2 is provided, the bag 2 and the pressure sensor 3 are provided. Need a lot of
There is a problem that piping and pressurization control for each bag 2 become very complicated, resulting in cost increase.

In particular, in the case of an interior member such as the seat 1, it is very difficult to deform the entire seat 1 into a suitable state according to the body shape of an occupant by adjusting the fluid pressure in a large number of bags 2 provided inside. There was a problem that it was difficult to fit the occupant's sitting posture.

The present invention has been made in view of such conventional problems, and an interior member such as a seat is formed into an arbitrary shape desired by an occupant by a simple opening / closing operation of a valve. The entire seat surface can be reliably fitted to the seated posture of the occupant, the fitting form can be maintained in a solidified state, the number of expensive parts can be reduced, and the cost can be reduced. The purpose is to solve.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention constitutes a surface layer of an interior member such as a sheet and sucks a negative pressure into a flexible bag struck by a support. It is characterized in that a powder body having a physical property of being solidified and fluidized by gas contact is enclosed, and a negative pressure suction device is made to communicate with the bag body through an atmosphere release valve and a check valve.

[Operation] According to the present invention, when the atmosphere release valve is opened, the enclosed powder body constituting the surface layer of the interior member such as a seat is brought into contact with the atmosphere and fluidized. By thus forming an arbitrary shape, the entire surface layer of the interior member such as the seat has a desired shape of the occupant (fitting to the sitting posture). Therefore, in this state, when the atmospheric release valve is closed and the negative pressure suction device is operated, the powder body in the bag body is sucked under negative pressure, and the powder body remains in the desired shape (fitting form). Solidify. Therefore,
The entire surface layer of the interior member such as a seat is reliably maintained in the occupant's preferred shape (a state in which the occupant remains in a sitting posture). Then, this state is maintained by closing the check valve even after the negative pressure suction device is stopped.

[Embodiment] Hereinafter, the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view, a perspective view of a vehicle seat which is an interior member according to an embodiment of the present invention, and FIG. 2 is a partially enlarged sectional view of FIG.

First, the structure will be described. Inside the flexible bag body 10 that constitutes the sheet surface layer, a powder body 11 is enclosed.

This powder body 11 is a spherical glass powder of about 5μ having physical properties of solidifying by negative pressure suction and fluidizing by gas contact (for example, a trade name manufactured by Sumitomo 3M Limited,
Glass bubbles).

Further, a negative pressure suction device 13 is connected to the inside of the bag body 10 via a suction pipe 12.

The negative pressure suction device 13 is composed of the negative pressure portion of the automobile engine, but may be other negative pressure suction means.

The suction pipe 12 has an atmosphere opening valve 14 and a check valve.
15 are installed.

A filter 16 is provided at the tip of the suction tube 12.

Further, a spring support 17 for supporting a spring (not shown) is attached to the lower surface of the bag body 10. Further, the spring support body 17 is a support body that drives the bag body containing the powder body 11 back.

In FIG. 2, a skin 18 covering the bag body 10 is laminated on the outer layer surface of the bag body 10.

Next, the operation will be described.

Before the occupant is seated on the seat configured by the bag body 10, by operating the negative pressure suction device 13, the bag body 10 inside the bag body 10 to the extent that the bag body 10 is deformed by the load due to the seating of the occupant. Suction negative pressure beforehand.

In this state, when the passenger sits down and opens the atmosphere release valve 14,
The atmosphere is introduced into the bag body 10 and the powder body 11 inside the bag body 10 comes into contact with the atmosphere, so that the powder body 11 is fluidized by its own physical characteristics.

As a result, the seat surface layer of the bag body 10 becomes familiar and deformed to fit the occupant's body shape.

Therefore, in this state, after closing the atmosphere release valve 14 and operating the negative pressure suction device 13, the bag body
When the powder body 11 in 10 is sucked under a negative pressure, the powder body 11 is adapted to the occupant's body shape and deformed and solidified in the fitted form as described above due to the physical characteristics due to the contact between the powder bodies.

Therefore, the seat surface layer of the bag body 10 is also kept in a fit form that is familiar and deformed to the body shape of the occupant.

In this way, if the seat surface layer fits the sitting posture of the occupant, at that time, by the check valve 15,
Even after the negative pressure suction device 13 is stopped, that is, even after the engine is stopped, the seat surface layer is maintained in a fit form to the sitting posture of the occupant.

In addition, it is needless to say that the seat surface layer can be easily deformed by the above-described procedure even when the passenger changes between passengers or the same passenger.

According to the experiment, it was found that the powder body in the bag body 10 was solidified by sucking for 5 minutes with a vacuum pump having a vacuum capacity of -710 mmHg. Therefore, when the negative pressure of the engine is used, it is about −550 mmHg in the idling state, and about −450 mmHg at 40 km / h, so it solidifies in about 7 to 10 minutes.

In the above embodiment, the bag body 10 may be provided with a plurality of suction ports formed by the suction tube 11. In this case, by increasing the suction port, the solidification time of the powder body 11 due to the negative pressure suction in the bag body 10 can be shortened.

FIG. 3 shows another embodiment.

In this embodiment, ventilation holes 19 are provided in the cushion portion of the seat surface layer of the bag body 10 to improve the air permeability in addition to the effects of the previous embodiment.

In the above-described embodiments, the seat is used as the interior member, but the interior member is not limited to the above-described seat, and the surface shape of the occupant such as the instrument panel, armrest, footrest, headrest, and assist grip can be changed as needed. Of course, it can be applied to all interior members that want to change to.

[Effects of the Invention] As described above, according to the present invention, a physics that is solidified by negative pressure suction and fluidized by gas contact in a flexible bag forming a surface layer of an interior member such as a sheet. Since a powder body having specific characteristics is enclosed and a negative pressure suction device is connected to the bag body through an atmosphere release valve and a check valve, the atmosphere release valve during operation of the negative pressure suction device and By simply opening and closing the check valve, the surface layer of the interior member such as the seat can be pressed by the occupant's own body weight and easily deformed into a desired shape (a shape that fits the body shape). The bag can be sucked when the surface layer is pressed by the body weight, and a surface shape that fits the occupant's body can be obtained. In addition, since the powder body is solidified by negative pressure suction, the surface shape (fitting shape) can be maintained as it is, and the powder body does not collapse even when the vehicle vibrates during traveling or the passenger moves due to the lateral G. In addition, the surface shape (fitting form) can be easily changed, and the effect that the comfort for any occupant can be improved is obtained.

In addition, the support for fluttering the bag body can prevent the bag body from being bent more than a predetermined amount, prevent excessive deformation, and reliably obtain a fit form.

Further, particularly when the present invention is applied to a seat, only the powder body is enclosed in the bag body serving as the seat surface layer, and many different bags, pressure sensors, etc. are housed and arranged in the seat as in the conventional case. Since it is not necessary at all, the number of parts can be greatly reduced, the structure can be simplified, and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing a vehicle interior member (seat) according to an embodiment of the present invention in section, FIG. 2 is a partially enlarged sectional view of FIG. 1, and FIG. 3 is another embodiment. FIG. 4 is a sectional perspective view of a vehicle interior member (seat) according to FIG. 4, and FIG. 4 is a perspective view showing a conventional vehicle interior member (seat). 10 …… Bag 11 …… Powder 13 …… Negative pressure suction device 14 …… Air release valve 15 …… Check valve 17 …… Spring support

Claims (1)

[Scope of utility model registration request] 1. A flexible bag body that constitutes an interior member for a vehicle and an upper surface layer, a skin that covers the bag body, and a bag that is enclosed in the bag body, solidified by negative pressure suction, and fluidized by gas contact. A powder body having physical properties for supporting the powder body, a support body for bouncing the bag body containing the powder body, and a negative pressure suction device connected to the bag body through an atmosphere release valve and a check valve. A vehicle interior member structure characterized by the above.