JPH06315421A - Seat structure for small vessel, etc. - Google Patents

Abstract

PURPOSE:To let the seat substance exhibit a high cushiony perbormance and provide so as to quickly discharge the soaked water. CONSTITUTION:The seat 3 is formed by covering the cushiony pad material with the bottom board 30 and the outer cover 35; the pad material consists of the main pad material and the sub-pad material 34 placed so as to cover the upper face of such main pad material; the main pad material is made by the independent plastic foam and the plural concaves 301 opening downward are formed at the almost equal intervals all over it; the sub-pad material 34 is constituted by the more cushiony material than the main pad material; the main pad material is constituted by the plural layers. In each layer, holes 310 and 320 penetrating in the up and down direction are formed and such holes in each layer form the aforesaid plural concaves 301 by linking with each other at their top or bottom with the holes in the adjoining layers.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat structure having excellent waterproof and cushioning properties, which is used in small boats and the like.

[0002]

2. Description of the Related Art Conventionally, in a small boat such as a jet propulsion boat that glides over water, a sheet of plastic foam is used as a core material (cushion material) and its periphery is covered with an outer skin. It is often wet by splashes of water or rain when running. And the cushioning material of the seat, in order to exert good cushioning properties,
Air is discharged by receiving a compressive force, and the foam is made of open cells so that the air is sucked at the time of restoration, but water is also sucked when the air is sucked. In order to prevent this, for example, Jitsuko Sho 53-
In Japanese Patent No. 24799, a structure is proposed in which the cushion material is hermetically sealed with an outer skin, an air bag is connected, and the air discharged by a compressive force is sent into the air bag so that external air is not sucked in. ing.

[0003]

In the structure in which the above-mentioned waterproofing means is not provided, when the cushion material contains water and the weight is applied during use, or a shock is applied to the cushion material, a load is applied to the cushion material. There is a problem that water that has been contained in water will come out from the seam of the outer skin to the surface and stain the clothes of the user. Further, when the cushioning material contains water, there will be a problem that the weight increases and a foul odor is generated.

The present invention has been made in order to solve the above-mentioned conventional drawbacks, and makes the seat body exhibit a good cushioning property, and the water containing water is promptly discharged to cause a bad odor. It is an object of the present invention to provide a seat structure for a small boat or the like that does not cause any problems.

[0005]

According to the present invention, a cushioning core member is covered with a bottom plate and an outer cover to form a seat, and the core member covers the main core member and the upper surface of the main core member. The main core material is formed of a plastic independent foam, and a plurality of recesses that open to the lower surface are formed substantially uniformly over the main core material. It is made of a material having a high cushioning property, and holes are formed in the bottom plate at positions corresponding to the recesses.

The main core material is composed of a plurality of layers, each layer is formed with a vertically penetrating hole, and the plurality of recesses are formed by communicating the holes of each layer with each other vertically. Is preferred.

[0007]

In the above structure, the core material covered with the bottom plate and the outer cover is made of a plastic independent foam, and the cushioning material is arranged so as to cover the upper surface of the main core material. Since the main core material has a plurality of recesses that open to the bottom surface almost evenly over the entire surface of the main core material, the weight of the person sitting on the seat in water or in an environment where water is struck By repeatedly applying the compressive force from above by the sheet main body, the absorbed water is satisfactorily discharged through the recess. Therefore, problems such as generation of a bad odor, increase in weight, and alteration of the core material do not occur. Also, since the main core material that occupies most of the sheet is formed of a closed foam that does not absorb water,
It also acts as a buoyant body, and the cushioning property of the seat can be adjusted by adjusting the size and distribution of the recesses. Further, if the main core material has a multi-layered structure, there is an advantage that the cushioning property is better adjusted.

[0008]

1 and 2, a hull member 11 constituting a ship bottom plate and a deck member 12 constituting a deck are integrally formed by FRP or the like, and they are formed at a peripheral edge portion 1.
The hull 1 is formed by joining together at 3. Hull 1
An engine (not shown) and a water jet propulsion machine (to be described later) driven by the engine are installed in the inside of the engine, thereby sucking water from the bottom of the ship and injecting water in a predetermined direction from the nozzle 73 at the stern end, Propulsion and turning force are generated.

On the above-mentioned deck, a seat member 6 is formed on the center line of the hull 1 at a position rearward of the central portion, and a seat base 6 is formed. Both sides of the seat base 6 are recessed to form a foot deck 4. The outer side thereof is further raised to form a gun flannel 5. The seat 3 is placed on the seat base 6, and the seat 3 is installed in the latter half of the seat 3 with the support base 62 interposed on the seat base 6. An opening is formed on the upper surface of the seat base 6, and a container 63 is fitted and attached from the upper side. A cover 64 is placed on the upper surface of the container 63 to cover the opening, and the sheet 3 is placed on the cover 64. Are placed via the cushion material 65.
Further, an operation handle 2 installed on a handle base 60 is provided on the front side of the seat body 3, and a person sitting on the seat 3 puts his / her foot on the foot deck 4 and grips the operation handle 2 to drive.

The seat 3 is constructed as shown in FIG. That is, in the seat 3, a core material made of a material having a high cushioning property is covered with a bottom plate 30 and a waterproof outer skin 35, and the core material is a main core lower layer 31, a main core intermediate layer 32, and a main core material. It comprises a main core material composed of an upper layer 33 and a sub-core material 34 arranged so as to cover the upper surface and both side surfaces of the main core material. The main core material is formed of a plastic independent foam such as polyethylene or vinyl chloride, and the sub-core material 35 is a material having a cushioning property higher than that of the main core material, for example, an open-cell soft plastic foam such as polyester fiber or urethane foam. It is made of wood. The outer skin 35 is made of a waterproof sheet such as a vinyl sheet.

As described above, the main core material is composed of a plurality of layers including the main core material lower layer 31, the main core material intermediate layer 32, and the main core material upper layer 33, and holes 310 and 320 penetrating vertically in each layer. And the recesses 331 that open downward are formed substantially evenly over the entire surface, and the holes 310 and 320 of each layer, the recesses 331, and the holes 300 of the bottom plate 30 communicate with each other in the vertical direction, so that the entire main core member is directed downward. A plurality of recesses 301 that open in the bottom are formed substantially uniformly over the entire surface.

Since the softness of the cushion changes depending on the ratio of the total area of the holes to the total area of the seat,
The size and distribution density of these holes may be appropriately set depending on the required softness of the cushion and the original hardness of the main core material. Also, the horizontal cross-sectional shape of the hole may be freely selected such as circular or rectangular. The reason why the main core material has a multi-layered structure is that the cushioning property can be exerted by utilizing the displacement between the layers, and the layers can be used as a drainage passage.

FIG. 4 shows another example of the sheet 3, in which a hole 330 penetrating vertically is formed in the upper layer 33 of the main core material. The hole 330 is formed in the hole 320 of the intermediate layer 32 of the main core material and the lower layer of the main core material. A plurality of recesses 302 that communicate with the holes 310 of 31 and open downward are formed substantially uniformly over the entire surface, and other points are the same as those in FIG. As described above, the hole 330 may be formed in the main core material 33 instead of the recess 331.

FIG. 5 shows still another example of the sheet 3, in which the main core material 36 is composed of a single layer, and a plurality of recesses 360 opening downward are evenly distributed in the main core material 36. The recess 360 is formed so as to communicate vertically with the hole 300 of the bottom plate 30, and the recess 303 is formed in the same manner as described above.

The above water jet propulsion machine is shown in FIGS. 6 and 7.
It is configured as shown in. That is, the water jet propulsion device 7 is installed in a recess in a housing 18 whose transverse cross section is formed in an inverted U shape at the bottom of the hull at the rear of the hull. A tapered portion 72 is formed at the stern portion of the main body 70, and a water injection port 73 that swings about a vertical shaft 730 is formed at the rear portion thereof. A cylindrical rotating body 74 having a plurality of blades 78 spirally arranged on the inner peripheral surface is attached to the intermediate portion of the main body 70, and a gear 740 is integrally formed on the outer peripheral surface on one side of the cylindrical rotating body 74. Is formed in. Further, the motor 8 is attached to the housing 18 above the cylindrical rotary member 74 by the bolts 19, and the pinion 82 to which the rotational force is transmitted via the reduction gear 81 meshes with the gear 740, whereby the cylindrical rotary member 74. Is rotated, and water is sucked from the water introduction port 75 through the flow path 71 by the blade 78 on the inner peripheral surface thereof. Instead of forming a plurality of blades 78 as shown in FIG. 8, a single spiral blade 7 is formed.
9 may be formed on the inner peripheral surface of the cylindrical rotating body 74. In the above configuration, since the impeller shaft located in the center of the flow path is not provided, there is no problem that algae or the like are entangled with the impeller shaft.

In the structure shown in FIGS. 1 to 3, a person sits on the seat body 3, puts his / her feet on the foot deck 4, grips the operation handle 2, and drives the ship to drive the hull 1. At this time, the compressive force from above due to the weight of the person is repeatedly applied to the seat body 3, and the seat 3
Water is often struck in the water. In addition, the seat 3 may be immersed in water due to the overturning of the hull 1.
Under such conditions of use, water infiltrates into the core material through the seam of the outer skin 35 or the hole 300 of the bottom plate 30, but since the main core materials 31, 32, 33 are made of independent foam, The water that is hardly sucked and is slightly sucked is pushed out by the weight of the person from the upper part of the sheet 3, is easily discharged through the recess 331, the holes 320, 330, and 300, and the water is absorbed in the core material. Is prevented from accumulating for a long time. Further, water is also surrounded by the water absorbent sub-core material 34, but this water is also discharged from the recess 301 through each layer of the main core material. Also, in the embodiment shown in FIGS. 4 and 5,
The effect is almost the same.

The urethane foam cannot be used as a cushioning material for this type of seat because it is hydrolyzed and deteriorates when it absorbs water. Since the water is drained well, it can be used as a cushion material.

Since most of the volume of the sheet 3 is composed of the main core material made of a non-water-absorbing independent foam, the main core material acts as a buoyant body when immersed in water. Further, since the holes are formed in the main core material, the cushioning property of softness is exhibited according to the size and distribution of the holes. In addition, when the weight of the hull 1 is statically applied when the hull 1 is stationary or running at a low speed, the auxiliary core material 34 having a high cushioning property exhibits the soft cushioning property required for the seat 3. .

[0019]

As described above, according to the present invention, the core member covered with the bottom plate and the outer cover is arranged so as to cover the main core member made of the plastic independent foam and the upper surface of the main core member. It consists of a sub-core material that has a high cushioning property and absorbs water. The main core material has a plurality of recesses that open to the bottom surface and is formed almost evenly over the main core material. Even in such an atmosphere, the compressive force from above due to the weight of the person on the seat is repeatedly applied to the seat body, so that the absorbed water is well discharged through the recess. Therefore, problems such as generation of a bad odor, increase in weight, and alteration of the core material do not occur. In addition, since the main core material that occupies most of the seat is made of independent foam that does not absorb water, it also acts as a buoyancy body and adjusts the cushioning property of the seat by adjusting the size and distribution of the recesses. You can also Further, if the main core material has a multi-layered structure, there is an advantage that the cushioning property is better adjusted. Further, since the auxiliary core material is made of a material having a higher cushioning property than the main core material, there is an advantage that a good cushioning property can be secured.

[Brief description of drawings]

FIG. 1 is a perspective view of an entire hull showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a seat portion of the hull.

FIG. 3 is an enlarged cross-sectional view of the sheet.

FIG. 4 is a cross-sectional view showing another example of the seat.

FIG. 5 is a transverse cross-sectional view showing still another example of the seat.

FIG. 6 is a partial cross-sectional side view of a water jet propulsion machine.

FIG. 7 is a partial cutaway perspective view of a water jet propulsion machine.

FIG. 8 is a partially cutaway perspective view showing another example of the water jet propulsion device.

[Explanation of symbols]

 1 Hull 2 Operation Handle 3 Seat 6 Seat Stand 30 Seat Bottom Plate 31, 32, 33 Main Core Layer 34 Sub-Core Material 35 Seat Outer Skin 301, 302, 303 Seat Recess

Claims (2)

[Claims] 1. A sheet is formed by covering a cushioning core material with a bottom plate and an outer skin, and the core material comprises a main core material and a sub-core material arranged so as to cover an upper surface of the main core material. The main core material is formed of a plastic independent foam, and a plurality of recesses that open to the lower surface are formed substantially evenly over the entire surface, and the sub-core material is formed of a material that is more cushioned than the main core material. A seat structure for a small boat or the like, characterized in that holes are formed in the bottom plate at positions corresponding to the recesses. 2. The main core material is composed of a plurality of layers, each layer is formed with a hole penetrating vertically, and the holes of each layer are communicated with each other to form the plurality of recesses. A seat structure for a small boat or the like according to claim 1.