JPH0141326Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an air support device installed in a seat of a vehicle such as an automobile, and particularly relates to a mounting structure for an electric air pump used in the air support device.

2. Description of the Related Art Air lumbar support devices are used in seats of vehicles such as automobiles, in which an air mat is provided at a portion corresponding to the lumbar vertebrae of an occupant, and air is supplied to the air mat to inflate it and adjust the degree of support for the lumbar vertebrae. A motor-driven electric air pump is equipped to supply pressurized air to this air mat.

FIG. 1 is a perspective view showing the external appearance of such an air pump. 1 is an air pump integrally formed with a motor, and has an air inlet 2 and an air outlet 3.
It has The discharge port 3 is an air supply pipe (usually a hose is used) facing the air mat.
connected to. This air pump 1 is usually attached to the seat frame of a seat, but since the pump unit does not have any vibration-proofing or sound-proofing devices, it can cause vibrations and noises caused by the rotation of the motor or noise caused by the air supply during operation. is severe and causes extreme discomfort to vehicle occupants. Therefore, measures have been taken to wrap the air pump 1 with soundproofing and vibrationproofing materials such as foamed urethane and felt, and to cover the air pump 1 with vibrationproofing and soundproofing covers. It takes a lot of effort to prepare and install the top, which leads to an increase in costs. Furthermore, it is difficult to completely cover the air pump 1, and therefore noise cannot be completely blocked.

The present invention solves the drawbacks of the air pump mounting structure in the conventional air support device as described above, and provides a structure that can effectively eliminate vibration and noise during pump operation and can be easily installed. It was made for the purpose of That is, the gist of the present invention is that, in the air support device for a vehicle as described above, an air pump is housed in a bag formed of a sheet-like material in which a wading material and a skin material are laminated on a backing material. It is. The configuration of the invention will be described below based on the embodiment shown in the drawings.

FIG. 2 is a perspective view showing one embodiment of the air pump mounting structure of the air support device according to the present invention, in which the pump 1 is housed in a bag 4, and a suction port 2 and a discharge port 3 are connected to a hose passing through the bag 4. It is connected to the. FIG. 3 is a sectional view of the bag 4, and FIG. 4 is a partially enlarged sectional view thereof. The sheet material constituting the bag 4 is made by laminating a wadding material 6 such as urethane and a skin material such as PVC leather on a backing material 5, and is different from the material conventionally used as a trim cover material for vehicle seats. It has a similar configuration. Therefore,
It is also possible to use a trim cover material for the bag 4 without preparing a special material.
The bag 4 for housing the pump 1 is formed by sewing this sheet-like material with a seam 8 using a sewing machine. Since the air pump 1 is housed in the bag 4 formed in this way, the vibrations and noise of the pump are absorbed by the wadding material 6, and are further sound-insulated by the skin material 7, so that they do not leak outside. Note that the wadding material 6 is not limited to the materials exemplified above, but any other material may be used, for example, glass wool having excellent heat resistance may be used. Further, the back base material 5 may be made of aluminum foil instead of the commonly used base fabric.
In this way, heat builds up inside the bag due to the heat generated by the operation of the pump, and the bag 4 has sufficient heat resistance.
There will be no damage.

In order to prevent heat from accumulating inside the bag 4, a piping structure as shown in FIG. 5 may be used.
That is, as shown in the figure, a return hose 10 branches from an air supply hose 9 that extends from the discharge port 3 of the pump 1 through the bag 4 and toward the air mat.
A return hose 10 is opened into the bag 4 via a check valve 11. Hose 9
A part of the air supplied through the bag 4 is blown into the inside of the bag 4 to cool the inside of the bag.

The bag 4 configured as described above and containing the air pump 1 may be attached to a structure such as a seat frame using any attachment means, but the most preferable embodiment is a structure in which the bag is suspended from a frame or the like. Good. FIG. 6 is a perspective view showing an embodiment of a bag suitable for such a hanging structure, in which the end edge of the bag 4a is extended outward, and is secured by a connecting member 12 such as a worm clip. The bag 4a is suspended by being connected to a structure such as a seat frame, and FIG. 7 is a sectional view of the bag 4a suspended from the seat frame 13. Note that 14 indicated by a chain line is a seat cushion. With such a hanging structure, vibrations are completely absorbed and no vibrations are transmitted to the seat.

As explained above, the air pump mounting structure of the present invention stores the air pump in a bag formed of a sheet material made of a wadding material and a skin material laminated on a backing material. Vibration and noise during operation are absorbed by the wading material and skin material.
The sound is insulated and is not transmitted to the outside, so it does not cause any discomfort to the occupants. Therefore, the air support device can be used comfortably. Moreover, since only a bag with a simple structure is used, there is no increase in weight or cost, and assembly is easy and requires less man-hours. This invention has great practical effects.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the external shape of the air pump, FIG. 2 is a perspective view showing one embodiment of the air pump mounting structure of the air support device according to the present invention,
Fig. 3 is a sectional view of the bag used in the structure shown in Fig. 2, Fig. 4 is a partially enlarged sectional view thereof, Fig. 5 is a perspective view showing one embodiment of the piping structure in the present invention, and Fig. 6 is a sectional view of the bag used in the structure shown in Fig. 2. A perspective view showing another example of the bag used for the invention,
FIG. 7 is a sectional view showing how the bag shown in FIG. 6 is attached. DESCRIPTION OF SYMBOLS 1...Air pump, 2...Inhalation port, 3...Discharge port, 4, 4a...Bag, 5...Back base material, 6...Wading material, 7...Skin material, 8...Sewing portion, 9,
10... Hose, 11... Check valve, 12... Connecting member, 13... Seat frame, 14... Seat cushion.

Claims (1)

[Scope of utility model registration request] An air support device for a vehicle, characterized in that an air pump is housed in a bag formed of a sheet-like material in which a wadding material and a skin material are laminated on a backing material.