JP2824018B2 - Air tent - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tent to be used for sunshade or rain protection in the field, for example, when setting up an athletic meet or an event venue, and more particularly to an air tent which is used by being inflated with air. .

[0002]

2. Description of the Related Art An air tent having an airtight chamber in which a tent body is composed of an outer upper tent and an inner lower tent and air is press-fitted between the upper and lower tents is disclosed in JP-A-4-315.
Nos. 77, 4-106273, 4-339
966, 5-106369, and Jitsuho 4-
It is widely known in, for example, JP-A-20935. There, the upper and lower tent grounds are connected in the middle so that they do not separate too much up and down so that the entire tent body that expands in front, rear, left and right is kept as flat as possible when air is injected. .

In general, the upper and lower tents are partially welded to each other because the upper and lower tents are made of thermoplastic synthetic resin. FIG. 5 schematically shows a typical conventional example, in which the upper and lower tent bases 31 and 32 constituting the tent body 30 are heat-welded at a constant pitch in the front-rear direction. The unit air tube 34 is formed. That is, the front and rear air tubes 34 are formed between the left and right sides of the tent body 30, but are formed independently of each other with the respective heat welding points 33 interposed therebetween, and the air tubes 34 communicate with each other at some point. When air is press-fitted, each air tube 34 takes a form of expanding in a round shape. According to this,
The inner and outer surfaces of the tent body 30 become uneven when the air is press-fitted, and each heat-welded portion 33 serving as a concave portion functions as a reinforcing rib, and the whole tent body 30 is well shaped into a desired shape.

[0004]

The first problem is that the upper and lower tent grounds are tightly joined to each other at a heat-welded portion.
When air is injected, the upper and lower tents are easily peeled off from each other at the heat welding point. Secondly, all the air tubes before and after each formed independently are communicated with each other, but it is troublesome if the work of securely welding the upper and lower tent grounds while providing the communication points is particularly large. Therefore, the manufacturing cost is high. Third, since the communicating portions between the air tubes are swelled at the time of air press-fitting, there is a problem that the entire shape becomes uneven and the external shape is not finished neatly.

Accordingly, an object of the present invention is to provide a tent body in which the upper and lower outer surfaces of the tent body are unevenly inflated in a state in which a large number of air tubes are arranged in the front-rear direction. It is to improve the connection type between the upper and lower tent grounds while eliminating the drawbacks of the conventional air tent. That is, an object of the present invention is to provide an air tent that can easily connect upper and lower tent sites even when the size is increased, and that can reduce manufacturing costs.
SUMMARY OF THE INVENTION An object of the present invention is to provide an air tent in which a connecting portion between upper and lower tents is hardly peeled off. An object of the present invention is to provide an air tent that can keep the external shape of the tent body neat when used by press-fitting air. An object of the present invention is to obtain an air tent that can be used by inflating the entire tent body in an arch shape that is convex upward.

[0006]

SUMMARY OF THE INVENTION The present invention relates to FIG .
As shown in FIG. 4 , the tent body 1 has an upper tent ground 2 and a lower tent ground 3 whose outer peripheral edges are joined to each other, and presses air between the upper tent ground 2 and the lower tent ground 3. in air tent for airtight chamber 4 is formed to allow each of the vertical width dimension
As the law goes from the center of the left and right to the left and right edges, it becomes progressively smaller.
Have a plurality of horizontally long nets 22 set to
Then, on the inner surface of the upper tent 2 and the lower tent 3,
Connect the upper and lower ends of each net 22 over the right direction
17 is formed, and this connecting portion 17 is
And connecting portions 17.1 adjacent to each other in the front-rear direction.
A unit air that is curved in the left and right direction between 7
It is characterized in that a tube 21 is formed .

[0007]

[Action] Air from a specific part in airtight chamber 4 in tent body 1
Into the airtight chamber 4 through the mesh of the mesh 22
The air fills without any hindrance. Air is completely filled in the airtight chamber 4
, The upper and lower tents at each connection point 17
The grounds 2 and 3 are drawn to each other at a certain distance and are concave
Before and after each connecting point 17 are rounded inward and outward.
A unit air tube 21 is produced by bulging out.
With this, the tent body 1 with the air inside and outside has a front surface.
Many of the unit air tubes 21 are connected to
It has an external appearance that is continuously formed in an uneven shape with the intermediary layer.

The net 22 moves from the left and right center to the left and right ends.
The dimensions were set so that the vertical width gradually became smaller
Means that when air is injected into the airtight chamber 4, the tent body 1 is
So that it looks like a mid-convex arch from left to right
That's because. The air in the present invention is compressed air of the atmosphere.
Needless to say, gas such as helium filled in cylinders
This is a concept that also includes

[0009]

【The invention's effect】 According to the present invention, the upper tent ground 2 and the lower tent ground 2
With the mesh 22 without heat welding the inner surfaces with the ground 3
The tent body is connected through the mesh of the net 22 because it is connected.
Air can be satisfactorily pressed into the airtight chamber 4 inside
And when this air is injected, the upper and lower tent grounds 2.3
Make sure that the separating force is concentrated on each joint 17
It can buffer and has excellent durability. And each connecting point 17
The unit of air tube 21 that is generated before and after
The cross section is almost circular and swells neatly across the left and right.

Each connection point between the upper tent ground 2 and the lower tent ground 3
The place 17 is formed by meeting the net 22, and each connecting point 1 is formed.
The upper and lower tents 2 and 3 are heat-welded at 7
Since it is not available, it is easy to manufacture and format the entire tent body 1
Inflate the air tubes 21
It can keep shape. In addition, the vertical width of the net 22 is
From the left and right ends
Each air tube 21, that is, the tent body
The whole of 1 can be used by inflating it into a convex arch in front view.
Have the following advantages.

[0011]

【Example】 1 to 4 show an air tent according to the present invention.
1 shows a first embodiment. The tent body 1 is shown in FIGS.
As shown, each of them is made of fiber-filled polyvinyl chloride.
It consists of waterproof upper tent ground 2 and lower tent ground 3
The outer edges of these sheets are heat-welded
An airtight chamber 4 in which air is injected between the upper and lower tent grounds 2 and 3
It was formed in a closed state.

In FIG . 2, one of the outer peripheral edges of the tent main body 1 is shown.
Parts, the connection of the vent tube 5 Ru through airtight chamber 4 to the right edge in FIG.
Have been. A blower 6 is connected to the ventilation tube 5 via a connection pipe 7.
By connecting, air is compressed by the blower 6 into the airtight chamber 4.
You can enter. The vent for pressurizing air into the tent body 1 is
Alternatively, it may be provided directly on the peripheral portion of the main body 1. Figure 2
In FIG. 3 and FIG.
Stand upright at regular intervals, and lock the upper and lower posts 9
The tent body 1 is provided with a horizontal rail 11 having
To engage the locking piece provided on the side edge with the locking metal fitting 10
The tent body 1 is detachably mounted on each support 9
You. However, in place of this support 9, for example, ground
Rope etc. on piles fixed on the top or fixed objects on the ground
To attach the left and right side edges of the tent body 1
There is also.

In FIG . 1 and FIG.
2.3 at a constant pitch back and forth over the entire length in the left-right direction
Left and right horizontal composition with predetermined vertical width to connect
A resin net 22 is used. The top and bottom width of each net 22 is the left
It gets smaller gradually from the right center to the left and right ends
The upper and lower edges of the net 22 are
It is formed in an arch shape that is convex in the direction. On the net 22
A bias tape 23 made of a synthetic resin sheet is
It is thermally welded together in a state where it is folded and sandwiched. Upper ten
The left and right length of the ground 2 is larger than that of the lower tent 3
Set the law. Then, at each connection point 17,
At the tent ground 2, a bias tape 23 is attached to the upper end of the net 22.
And the lower tent 3 is covered with the lower end of the net 22.
It is sewn via the eas tape 23. by this
Do not heat weld the upper and lower tents 2 and 3 in face contact.
Therefore, it can be easily manufactured.

At this time, air is pressed into the airtight chamber 4.
And the entire airtight chamber 4 is filled with air through the mesh of the mesh 22.
The upper tent 2 and the lower tent 3 are moved up and down by the net 22.
The air tubes can be connected and held in a state of being separated
21, that is, the entire tent body 1 expands into a convex middle arch shape.
Ram. In other words, when the tent body 1 expands,
The left and right central parts are wide at the top and bottom, and
Gradually become narrower at the top and bottom, keeping it well
A shaped air tent is obtained. Air pressure to airtight chamber 4
When adjusting the air pressure while using the tent,
It is desirable to perform the process continuously or intermittently. Of course, Air
Filled in the airtight chamber 4 using a check valve after press-fitting
May simply be sealed. If you bleed air from the airtight chamber 4,
The tent body 1 is folded compactly for easy carrying.
Can fold.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view of a main part of a first embodiment.

FIG. 2 is a front view showing a use state of the first embodiment.

FIG. 3 is a side view showing a use state of the first embodiment.

FIG. 4 is a vertical sectional side view of a main part of the first embodiment.

FIG. 5 is a vertical sectional side view of a main part of a conventional example .

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tent main body 2 Upper tent ground 3 Lower tent ground 4 Airtight room 13 Connecting piece 15 String 17 Connecting place 19 Gap 21 Air tube

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E04H 15/20

Claims (1)

(57) [Claims] 1. A tent main body 1 has an upper tent 2 and a lower tent 3 whose outer peripheral edges are joined to each other, and press-fits air between the upper tent 2 and the lower tent 3. In the air tent in which the airtight chamber 4 is formed, the vertical dimension of each air tent goes from the left and right central portions to the left and right ends.
Left and right landscapes that are set to gradually become smaller
Of the upper tent ground 2 and the lower tent ground 3
The upper and lower ends of each net 22 are met across the
Is formed, and the connecting portions 17 are formed at a predetermined pitch in the front-rear direction.
It is formed between the connection points 17 adjacent to each other in the front-rear direction.
A unit air tube 21 bent into an arch shape is formed.
An air tent characterized by being made .