JP3056537U - Air cushion device for moving seats - Google Patents

Abstract

(57) [Summary] [Problem] When moving a seat, dust flowing from the frame into the cushion element comes out of the air blowing hole of the cushion element and mixes into the air film to damage the floor surface. It is to prevent the cushion element from being damaged. SOLUTION: An air cushion plank 2 for floating a movable seat in a reduced state from the floor surface with the force of compressed air, an air compressor for generating compressed air, and a supply of compressed air from the air compressor to the air cushion plank. The air cushion 4 includes an air hose 4, and the air cushion plank 2 has a hollow frame 5, an element support plate 6 fixed to the lower surface of the frame, and a number of fine air blowouts fixed to the lower surface of the element support plate. In a moving seat air cushion device having a bag-shaped cushion element 7 having a hole 7a, a filter 8 is inserted into a compressed air passage 6a connecting the inside of the frame 5 and the inside of the cushion element 7. It is assumed that.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an air cushion device for moving a movable seat between an installation position and a storage position.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, there is an air cushion device as described above as shown in FIG. 2. In this air cushion device, a plurality of chairs are respectively mounted so as to be able to be turned upside down, and a deployed state in which they are displaced in a stair-like shape, and an up-and-down direction. An air cushion plank 2 that floats from the floor with the force of compressed air in a reduced state of a movable seat 1 having a plurality of floors that are moved between a reduced state in which it is aligned, and generating compressed air And an air hose 4 for supplying compressed air from the air compressor 3 to the air cushion plank 2.

Here, as shown in an exploded perspective view of FIG. 3A and a partial cross-sectional view of FIG. 3B, the air cushion plank 2 vertically defines two rectangular frame portions 5a. A hollow frame 5, two element supporting plates 6 fixed to the lower surfaces of the frame portions 5a, respectively, and a number of fine air blowing holes 7a fixed to the lower surfaces of the element supporting plates 6 respectively. And a joint (not shown) on the side of the frame 5 for connecting the air hose 4 to the frame 5 and supplying compressed air to its internal space. Is provided, and an air supply port 5b is opened in the lower surface of each frame portion 5a of the frame 5. An air supply hole 6a is formed in each element support plate 6 at a position aligned with the air supply port 5b of the frame 5, and an air supply hole of the element support plate 6 is provided above each cushion element 7. An air inlet 7b is formed at a position aligned with the supply hole 6a.

In such an air cushion device, as shown in FIG. 2, two air cushion planks 2 are inserted into a gap between a movable spectator seat 1 in a reduced state and a floor surface to form an air compressor 3. When the compressed air is sent to the air cushion plank 2 from the air cushion 4 via the air hose 4, the compressed air supplied from the air hose 4 into the frame 5 through each air cushion plank 2 is supplied from each air supply port 5b to each element support. The air flows into the cushion elements 7 through the air supply holes 6a of the plate 6 and the air inlets 7b of the cushion elements 7, and the cushion elements 7 are inflated to slightly raise the entire movable seat 1 from the floor. The air flows out from the air outlet 7a of each cushion element 7 little by little, and the lower surface of the cushion element 7 Forming a thin air film between the floor surface. Therefore, according to this air cushion device, the movable seat 1 can be moved between the installation position and the storage position with a small force.

[0005]

[Problems to be solved by the invention]

 However, in such a conventional air cushion device for a movable seat, dust sent from the air hose 4 or remaining in the frame 5 flows into the cushion element 7 together with the flow of compressed air, and the air in the cushion element 7 is removed. When the moving seat 1 is moved, the floor surface may be damaged or the cushion element 7 may be damaged if the air enters through the air holes 7a and enters the air film.

[0006]

[Means for Solving the Problems and Their Functions and Effects]

 An object of the present invention is to provide an air cushion device that advantageously solves the above-described problem. The air cushion device for a moving spectator according to the present invention has a moving spectator with its compressed air compressed. The air cushion plank has an air cushion plank that floats from the floor with the force of the air, an air compressor that generates compressed air, and an air hose that supplies compressed air from the air compressor to the air cushion plank. A moving spectator having a frame, an element support plate fixed to the lower surface of the frame, and a bag-shaped cushion element fixed to the lower surface of the element support plate and having a number of fine air blowing holes. In the air cushion device, the inside of the frame and the cushion element It is characterized in that the interposed filter to the compressed air passage connecting the inside.

In such an air cushion device, when compressed air is supplied to the hollow frame of the air cushion plank from an air compressor via an air hose, the compressed air connects the inside of the frame to the inside of the cushion element. It reaches the inside of the cushion element through the air passage, inflates the cushion element and slightly lifts the movable seat in a reduced state, and flows out little by little from the air outlet of the cushion element and the lower surface of the cushion element and the floor surface. A thin air film is formed between and. Therefore, according to the air cushion device, the movable seat can be moved between the installation position and the storage position with a small force.

Further, in this air cushion device, since a filter is inserted in a compressed air passage connecting the inside of the frame and the inside of the cushion element, it is sent from an air hose or remains in the frame. Any debris that may have flowed into the cushion element with the flow of compressed air is blocked by the filter. Therefore, according to this air cushion device, when moving the movable seat, the above refuse comes out of the air blowing hole of the cushion element and mixes into the air film, thereby damaging the floor surface or damaging the cushion element. Can be prevented.

In the air cushion device of the present invention, the compressed air passages are aligned with each other so that the air supply port of the frame, the air supply hole of the element support plate, and the air inlet of the cushion element are aligned. The air supply hole of the element support plate is formed larger than the air supply port of the frame and the air flow inlet of the cushion element, and the filter is provided in the air supply hole of the element support plate. And the filter may be sandwiched between the frame and the cushion element, so that the filter is fixed in the compressed air passage and the filter is removed from the compressed air passage when cleaning the filter. Easy removal by attaching and detaching the element support plate to and from the frame You.

In the air cushion device according to the present invention, the filter may have a net-like or felt-like air circulating portion, and if the filter has the mesh-like air circulating portion, the flow resistance of the compressed air is reduced. And a filter having a felt-like air circulation section can make the filter inexpensive.

[0011]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described in detail by way of examples with reference to the drawings. Here, FIG. 1A is an exploded perspective view of an air cushion plank in an embodiment of the moving seat air cushion device of the present invention, and FIG. 1B is a partial cross-sectional view of the air cushion plank. FIG. 1 (c) is a perspective view showing a filter provided on the air cushion plank, in which parts similar to those shown in the conventional example of FIG. 3 are denoted by the same reference numerals.

[0012] The air cushion device of this embodiment also has a plurality of chairs mounted thereon so as to be able to be turned upside down as in the conventional example shown in FIG. An air cushion plank 2 that lifts the movable seat 1 having a plurality of floors that are moved between the floor and the floor in the reduced state by the force of compressed air, and an air compressor 3 that generates compressed air And an air hose 4 for supplying compressed air from the air compressor 3 to the air cushion plank 2.

Here, as shown in FIGS. 1A and 1B, the air cushion plank 2 includes a hollow frame 5 vertically defining two rectangular frames 5a, and the hollow frames 5a. Two element support plates 6 each of which is detachably fixed to the lower surface of the element by bolts, and a bag-like shape which is fixed to the lower surface of each of the element support plates 6 and has a plurality of fine air blowing holes 7a. It has two cushion elements 7, and a joint (not shown) is provided on the side of the frame 5 to connect the air hose 4 to the frame 5 and supply compressed air to the internal space. An air supply port 5b is formed in the lower surface of each frame 5a of FIG. Each element support plate 6 has an air supply hole 6a at a position aligned with the air supply port 5b of the frame 5, and an air supply hole of the element support plate 6 is provided above each cushion element 7. An air inlet 7b is formed at a position aligned with the hole 6a.

In this embodiment, however, the air supply hole 6a of the element support plate 6 is formed larger than the air supply port 5b of the frame 5 and the air inlet 7b of the cushion element 7. A filter 8 is disposed in the air supply hole 6a of the first embodiment, and the filter 8 is sandwiched between the lower surface of the frame 5 and the upper surface of the cushion element 7, and the filter 8 here is as shown in FIG. Further, a central portion has a net-shaped air circulating portion 8a, and a peripheral portion has a ring-shaped edge 8b for supporting the periphery of the net-shaped air circulating portion 8a.

In the air cushion device of this embodiment, like the conventional device, as shown in FIG. 2, two air cushions are provided in the gap between the movable seat 1 in a reduced state and the floor surface. When the compressed air is sent from the air compressor 3 to the air cushion plank 2 through the air hose 4 from the air compressor 3, the compressed air supplied from the air hose 4 into the frame 5 in each air cushion plan 2 is inserted. Flows into each cushion element 7 from each air supply port 5b through the air supply hole 6a of each element support plate 6 and the air inlet 7b of each cushion element 7, and inflates the cushion element 7 to move and view. The entire seat 1 is slightly raised from the floor surface, and flows out of the air outlets 7a of the cushion elements 7 little by little to cook. ® to form a thin air film of about 0.1 to 0.3 mm between the lower surface and the floor of the emission element 7. Therefore, according to the air cushion device of this embodiment, the movable seat 1 can be moved between the installation position and the storage position with a small force.

Moreover, in the air cushion device of this embodiment, since the filter 8 is inserted in the compressed air passage connecting the inside of the frame 5 and the inside of the cushion element 7, the air is supplied from the air hose 4. Any dust that has been collected or remains in the frame 5 will flow into the cushion element 7 together with the flow of compressed air, and will be blocked by the filter 8. Therefore, according to the air cushion device of this embodiment, when the movable seat 1 is moved, the above-mentioned dust comes out from the air blowing holes 7a of the cushion element 7 and mixes into the air film to damage the floor surface. It is possible to prevent the cushion element 7 from being attached or damaged.

Further, according to the air cushion device of this embodiment, the compressed air passages are aligned with each other, and the air supply port 5b of the frame 5, the air supply hole 6a of the element support plate 6, and the air of the cushion element 7 are aligned. The air supply hole 6a of the element support plate 6 is formed so as to be larger than the air supply port 5b of the frame 5 and the air inlet 7b of the cushion element 7. Since the filter 8 is disposed in the air supply hole 6a and is sandwiched between the frame 5 and the cushion element 7, the filter 8 is fixed in the compressed air passage, and the filter 8 from the compressed air passage when the filter 8 is cleaned. Can be easily removed by attaching and detaching the element support plate 6 to and from the frame 5.

According to the air cushion device of this embodiment, since the filter 8 has the net-shaped air circulating portion 8a at the center, the flow resistance of the compressed air can be reduced.

Although the present invention has been described with reference to the illustrated example, the present invention is not limited to the above example. For example, the number of the cushion elements 7 may be increased or decreased as necessary. May have a felt-like air circulation portion.

[Brief description of the drawings]

FIG. 1 (a) is an exploded perspective view of an air cushion plank in an embodiment of the moving seat air cushion device of the present invention, (b) is a partial cross-sectional view of the air cushion plank, and (c). FIG. 3 is a perspective view showing a filter provided on the air cushion plank.

FIG. 2 is a perspective view showing the overall configuration of the air cushion device for a moving spectator seat of the embodiment and the conventional example.

FIG. 3 (a) is an exploded perspective view of an air cushion plank in the above-described conventional air cushion device for a movable spectator seat, and FIG. 3 (b) is a partial cross-sectional view of the air cushion plank.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Moving seat 2 Air cushion plank 3 Air compressor 4 Air hose 5 Frame 5b Air supply port 6 Element support plate 6a Air supply hole 7 Cushion element 7a Air outlet 7b Air inlet 8 Filter 8a Air circulation section

Claims (3)

[Utility model registration claims] 1. An air cushion plank (2) for floating a movable viewing seat (1) in a reduced state from the floor surface with the force of compressed air, an air compressor (3) for generating compressed air, and the air compressor An air hose (4) for supplying compressed air to the air cushion plank, wherein the air cushion plank has a hollow frame (5), an element support plate (6) fixed to the lower surface of the frame, and the element An air cushion device for a movable seat, comprising: a bag-shaped cushion element (7) fixed to a lower surface of a support plate and having a number of fine air blowing holes (7a). Characterized in that a filter (8) is interposed in a compressed air passage (6a) connecting to the inside of the vehicle, Air cushion device. 2. The compressed air passages are aligned with each other;
An air supply port (5b) of the frame (5), an air supply hole (6a) of the element support plate (6), and an air inlet (7b) of the cushion element 7; The hole (6a) is formed larger than the air supply port (5b) of the frame and the air inlet (7b) of the cushion element, and the filter (8) is provided with an air supply hole ( 6a) and is sandwiched between the frame and the cushion element,
The air cushion device for a movable seat according to claim 1. 3. The air cushion device for a mobile seat according to claim 1, wherein the filter (8) has a net-like or felt-like air circulation portion.