JPH07229327A - Air tent - Google Patents

Abstract

PURPOSE:To manufacture an air tent in low cost, and to properly maintain its shape while being swollen in an arch shape, in an air tent being used by forcedly supplying air between the upper tent texture and the lower tent texture, by improving the connecting method for connecting the upper and lower tent textures each other. CONSTITUTION:A tent body 1 is made up of an upper tent texture 2 and a lower tent texture 3. An airtight chamber 4 in which air is forcedly supplied is provided between the upper and lower tent textures 2 and 3. The upper and lower tent textures 2, 3 are connected at prescribed pitches in the lengthwise direction. In the respective connecting parts 17, the upper end part of an upper connecting piece 13 is thermally fused to the upper tent texture 2, and the lower end part of a lower connecting piece 13 is thermally fused to the lower tent texture 3. The upper and lower connecting pieces 13, 13 are connected each other by means of a rope 15 in the lengthwise direction. In the respective connecting parts 17, a gap 19 for passing air is lengthwise formed between the free end parts of the upper and lower connecting pieces 13, 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tent used for outdoor sun protection and rain protection, for example, when setting up an athletic meet or event venue, and more particularly to an air tent inflated with air. .

[0002]

2. Description of the Related Art An air tent having a main body of an outer upper tent and an inner lower tent, and an airtight chamber into which air is press-fitted between upper and lower tents is disclosed in Japanese Patent Laid-Open No. 4-315.
No. 77, No. 4-106273, No. 4-339.
No. 966, No. 5-106369, No.
It is widely known in Japanese Patent No. 20935. There, the upper and lower tent grounds are connected in the middle so that the entire tent body, which spreads in the front, rear, left and right, maintains a flat shape as much as possible when air is pressed in, so that they are not too far apart from each other. .

As a connection method, since the upper and lower tents are generally made of a thermoplastic synthetic resin material, the upper and lower tents are partially welded by heat. FIG. 10 schematically shows a typical conventional example.
The upper and lower tents 31 and 32 constituting the above are heat-welded at a constant pitch in the front-rear direction.
A unit air tube 34 is formed therebetween. That is, although the front and rear air tubes 34 are formed across the left and right sides of the tent body 30, they are formed in an independent state with each heat welding portion 33 interposed therebetween, and the air tubes 34 communicate with each other somewhere. However, when air is press-fitted, each air tube 34 bulges 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, which is a recess, functions as a reinforcing rib, so that the entire tent body 30 can be kept in a desired shape well. To do.

[0004]

The first problem is that the upper and lower tents are closely joined at the heat-welded points.
When air is pressed in, the upper and lower tents are easily peeled off at the heat-welded area. Secondly, the front and rear air tubes that are formed independently are all communicated with each other, but it is troublesome when the work of reliably heat-sealing the upper and lower tents while providing this communication location is particularly large. Therefore, the manufacturing cost is high. Thirdly, when the air is pressed in, the communicating portions between the air tubes also swell, so that there is a problem in that the overall shape is uneven and the appearance cannot be finished neatly.

Therefore, an object of the present invention is to inflate the upper and lower outer surfaces of the tent body in a concavo-convex shape with a large number of air tubes arranged in the front-rear direction, and the upper and lower tents forming the tent body are formed in the recesses. Even though it is an air tent that is connected, it is to improve the connection type between the upper and lower tents to eliminate the conventional drawbacks. That is, an object of the present invention is to obtain an air tent in which upper and lower tents can be easily connected to each other even if the size is increased and the manufacturing cost can be reduced.
An object of the present invention is to obtain an air tent in which the connecting portions of the upper and lower tents are hard to peel off. An object of the present invention is to obtain an air tent capable of keeping the external shape of the tent main body neat when used by pressurizing air. An object of the present invention is to obtain an air tent that can be used by inflating the entire tent body into an arch shape that is convexly curved upward.

[0006]

According to the present invention as set forth in claim 1, as shown in FIGS. 1 to 6, an upper tent land 2 and a lower tent land 3 in which a tent body 1 is joined at its outer peripheral edge portions to each other.
In the air tent in which the airtight chamber 4 that allows the press-fitting of air is formed between the upper tent land 2 and the lower tent land 3, the left and right laterally long strip-shaped connecting pieces 13 are provided. 2, one end of each connecting piece 13 in the up-down width direction is fixed to the inner surfaces of the lower tent land 3 and the lower tent land 3 in the up-down direction at a constant pitch in the front-rear direction. It is characterized in that when 13 are connected by a string 15 and air is press-fitted into the airtight chamber 4, a predetermined gap 19 is formed between the free ends of the connecting pieces 13 in the vertical width direction. More specifically, as shown in FIG. 5, the upper end of the upper connecting piece 13 is heat-welded to the upper tent land 2, and the lower end of the lower connecting piece 13 is heat-welded to the lower tent land 3. The upper and lower widths of the upper and lower connecting pieces 13 and 13 are set so as to gradually decrease from the left and right central portions to the left and right ends as shown in FIGS. 1 and 4, and the gap 19 between the two connecting pieces 13 and 13 is set. The size is set to be substantially the same in the left-right direction. Further, it is assumed that the upper and lower edges of the upper and lower connecting pieces 13, 13 are formed in an arch shape that is convexly curved upward.

The present invention according to claim 5 is based on FIG. 7 and FIG.
As shown in FIG. 3, the tent body 1 has an upper tent land 2 and a lower tent land 3 whose outer peripheral edge portions are joined to each other, and allows press-fitting of air between the upper tent land 2 and the lower tent land 3. In the air tent in which the airtight chamber 4 is formed, there are laterally long nets 22 having a predetermined vertical width, and the upper and lower ends of the nets 22 are provided on the inner surfaces of the upper tent land 2 and the lower tent land 3 in the left-right direction thereof. Is sewn at a constant pitch in the front-rear direction. The upper and lower widths of the net 22 are set so that they gradually become smaller from the left and right central portions toward the left and right ends.

According to the seventh aspect of the present invention, as shown in FIG. 9, the tent body 1 has an upper tent land 2 and a lower tent land 3 whose outer peripheral edges are joined to each other. In an air tent in which an airtight chamber 4 that allows press-fitting of air is formed between the upper tent land 2 and the lower tent land 3,
Are sewn directly in the left-right direction with a string 15 at regular intervals in the front-rear direction, and when air is pressed into the airtight chamber 4, a predetermined gap 19 is left between the upper and lower tents 2 and 3. It is characterized in that it occurs over. The left and right length of the upper tent site 2 there is
The size is set to be larger than the left and right length of.

[0009]

In manufacturing the air tent, the upper end of the upper connecting piece 13 is fixed to the inner surface of the upper tent land 2 and the lower end of the lower connecting piece 13 is fixed to the inner surface of the lower tent ground 3 in advance.
In many cases, the upper and lower tents 2.3 and each connecting piece 13
Since both are made of a thermoplastic synthetic resin material, the end portions of the connecting pieces 13 are heat-welded to the respective tents 2 and 3. However, instead of heat welding, they may be bonded or sewn together to be integrated in advance. Next, at each connecting point 17, the connecting piece 1
3. Connect strings 13 and 13 together. The cord 15 is braided so as to be sewn on each connecting piece 13 in the front-rear thickness direction thereof.

When air is press-fitted into the airtight chamber 4 in the tent body 1 from a specific portion, the air is completely filled in the airtight chamber 4 through the gap 19 formed between the upper and lower connecting pieces 13, 13. . When the air is completely press-fitted into the airtight chamber 4, the upper and lower tents 2 and 3 are pulled toward each other at a certain distance at each connecting point 17 and are recessed, so that each connecting point 17
A unit air tube 21 is formed by bulging so that the front and rear sides sandwiching it protrude inward and outward in a round shape. With this, the tent body 1 filled with air has an outer shape in which a large number of unit air tubes 21 are continuously formed in a concavo-convex shape in the front-rear direction with the outer surfaces inside and outside sandwiching the connection points 17.

When the airtight chamber 4 is filled with air, the connecting piece 13 functions as a beam (reinforcing rib) that maintains the overall shape of the tent body 1. The upper and lower connecting pieces 13 are dimensioned so that the upper and lower widths gradually decrease from the right and left central portions toward the left and right ends, and the vertical dimension of the gap 19 between the both connecting pieces 13 is substantially the same across the left and right. The setting is made so that when air is press-fitted into the airtight chamber 4, the tent body 1 has an arched shape that is convex in the left-right direction in a front view. If the upper edge and the lower edge of each of the upper and lower connecting pieces 13 are convexly curved upward, it is further advantageous to form the tent body 1 in an arch shape. The term "air" used in the present invention is a concept including not only compressed air in the atmosphere but also gas such as helium filled in a cylinder.

Further, in place of the connecting piece 13 and the cord 15, a horizontally and horizontally long net 22 having a predetermined vertical width is interposed between the upper and lower tents 2 and 3, and the upper and lower ends of the net 22 are connected to each other. The same function can be achieved by sewing on the inner surfaces of the tents 2 and 3. In this case, the existing portion of the net 22 becomes the connecting portion 17, and the front and rear air tubes 21 are connected via the mesh of the net 17.
・ 21 communicate with each other. The same applies to the case where the connecting piece 13 is omitted and the upper and lower tents 2 and 3 are directly sewn together only with the cord 15. Also in this case, the upper and lower tents 2 and 3 are not joined, and when air is introduced into the airtight chamber 4, a predetermined gap 19 is created between the tents 2 and 3 across the left and right sides, and the gap 19 is provided between them. The front and rear air tubes 21 are communicated with each other.

[0013]

According to the present invention as set forth in claim 1, the upper and lower connecting pieces 13, 13 are preliminarily attached to the upper tent land 2 and the lower tent land 3.
Since one end portion in the width direction of the tent is fixed, the fixing work can be easily performed with the upper and lower tents 2 and 3 in a deployed state. Next, the upper and lower tent areas 2.3
It suffices to overlap and connect the connecting pieces 13 and 13 by sewing the string 15 together. Therefore, even if the tent main body 1 is upsized as compared with the conventional type in which the upper and lower tents 2 and 3 are heat-welded at the respective connection points 17 in a surface contact state, the tent main body 1 can be easily and efficiently manufactured and provided at a low cost. Upper and lower connecting pieces 1
Since a gap 19 is provided between the free ends of 3 and 13, air can be satisfactorily press-fitted into the airtight chamber 4 in the tent body 1 through the gap 19 and the upper and lower tent spaces can be pressed when the air is pressed. The force that pulls the 2.3 apart is at each connection point 17
It can well buffer the concentrated addition to the product and has excellent durability. The unit air tubes 21, 21 that are located in front and back of each connecting portion 17 have a substantially circular cross section and bulge neatly between the left and right. Moreover, since the connecting pieces 13, 13 facing each other in the vertical direction at the connecting point 17 are provided in series in the left-right direction, this exerts the function of the beam,
The entire tent body 1 in which air is press-fitted can be neatly shaped.

The vertical width dimension of the connecting piece 13 is made larger at the left and right central portions and becomes narrower toward the left and right ends, and the above-mentioned gap 19 between the upper and lower connecting pieces 13 at each connecting point 17 is left and right. Since they have substantially the same vertical dimension over the entire length, the tent body 1 has a semi-convex arch shape when viewed from the front when air is pressed. If the upper edge and the lower edge of both the connecting pieces 13 are formed so as to be convexly curved upward, the tent body 1 can be more positively expanded in an arch shape. With such an arched shape, the rainwater received on the upper surface can be drained to the left and right without accumulating, the appearance is improved, and it is also convenient when using the space below.

According to the fifth aspect of the present invention, the meshes of the nets 22 at the respective connecting points 17 serve as the gaps 19, whereby the air tubes 21, 21 are connected to each other across the nets 22. It can be formed in the state. Each connection point 17
Since the upper and lower tents 2 and 3 are not heat-welded together, the manufacturing is easy, and the entire tent body 1 can be inflated well and the shape of the air tubes 21 can be well maintained in the front and rear. Moreover, the vertical width of the net 22 is set so as to become gradually smaller from the center portion in the left-right direction to the left-right ends, so that each air tube 21, that is, the tent body 1
Has the advantage that it can be used by inflating it in a convex arc shape in a front view.

According to the present invention as set forth in claim 7, the connecting piece 13 is omitted and the upper and lower tents 2 and 3 are sewn together at the connecting points 17 only by the cord 15. In this case as well, when air is pressed in, the gap 19 is formed between the upper and lower tents 2 and 3 over the left and right sides, so that it is easy to manufacture by simply sewing with the string 15, and the air tube 21 can be moved forward and backward. You can inflate neatly so that they line up. Moreover, the right and left length of the upper tent land 2 is set to the lower tent land 3
It is advantageous in that the size of each air tube 21, that is, the entire tent body 1 can be inflated into a convex arcuate shape in a front view and can be used only by setting a size larger than that.

[0017]

【Example】

(First Embodiment) FIGS. 1 to 6 show a first embodiment of an air tent according to the present invention. As shown in FIGS. 1 and 5, the tent body 1 is in the form of a sheet composed of a waterproof upper tent land 2 and a lower tent land 3, each of which is made of fiber-containing polyvinyl chloride. The outer peripheral edge is heat-welded to form an airtight chamber 4 into which air is press-fitted between the upper and lower tents 2 and 3 in a hermetically sealed manner.

In FIG. 2, a communicating cylinder 5 communicating with the airtight chamber 4 is connected to a part of the outer peripheral edge of the tent body 1, that is, the right edge in the figure. By connecting the blower 6 to the ventilation cylinder 5 via the connecting pipe 7, the blower 6 can press the air into the airtight chamber 4. The vent hole for pressurizing air into the tent body 1 may be provided directly on the peripheral portion of the tent body 1. In FIG. 2 and FIG. 3, a large number of columns 9 are erected on the left and right at regular intervals in the front-rear direction, and a horizontal rail 11 provided with locking metal fittings 10 is erected on the upper ends of the columns 9 on the front and rear sides. The tent body 1 is detachably mounted on each of the columns 9 by engaging the locking pieces provided on the left and right side edges of the locking metal fitting 10. However, instead of the pillar 9, depending on the application, the left and right side edges of the tent body 1 may be attached to a pile struck on the ground or a fixed object on the ground via a rope or the like.

In FIGS. 1 and 5, a connecting piece 13 and a cord 15 such as a rope are provided to connect the upper and lower tents 2 and 3 at a constant pitch back and forth over the entire length in the left-right direction. In FIG. 4, each connecting piece 13 is in the shape of a laterally long strip (tape), and a large number of connecting holes 16 penetrating in the front-rear thickness direction are provided at regular intervals in the left-right direction. The upper and lower widths of the connecting piece 13 are set so as to become gradually smaller from the central portion on the left and right sides to the left and right ends, and the upper edge and the lower edge of the connecting piece 13 are formed in an arch shape that is convexly bent upward. ing.

Each of the connecting pieces 13 in the figure is made of the same polyvinyl chloride as that of the upper and lower tents 2 and 3, and a flange portion 13a is provided in a T-shape as shown in FIG. 5 at the upper and lower ends thereof. . Specifically, as shown in FIG. 6, the connecting piece 13 can be folded in two and overlapped, and both bent ends can be folded back and forth to form the collar portion 13a. As a result, first, with the upper and lower tents 2 and 3 unfolded, with respect to the inner surface of the upper tent land 2, the upper end flange portions 13a of the respective upper connecting pieces 13 are attached to the inner surface of the lower tent land 3. Is integrally heat-welded to the lower end flange portions 13a of the lower connecting pieces 13 in the front-rear direction at a constant pitch in the left-right direction. Since each connecting piece 13 is formed in an arched shape as described above, the left-right length of its upper edge is larger than the left-right length of its lower edge. Therefore, naturally, the right and left length of the upper tent site 2 is set to be larger than the left and right length of the lower tent site 3.

Next, the upper and lower tents 2 and 3 are stacked so that the inner surfaces thereof face each other, and the upper and lower tents 2 and 3 are connected at a constant pitch in the front-rear direction over the entire length in the left-right direction. In FIG. 5 and FIG. 6, reference numeral 17 indicates the connecting portion. At this connection point 17, as shown in FIGS. 1 and 5, the upper and lower connection pieces 13 and 13 are opposed to each other, and the cord 15 is alternately sewn into the connection holes 16 and 16 of each connection piece 13 and 13 so that the left and right connection pieces 13 and 13 are sewn. Pass it from one end side to the other end side and connect it by braiding. At this time, when air is press-fitted into the airtight chamber 4, gaps 19 having substantially the same intervals are formed between the free ends of the upper and lower connecting pieces 13 in the left-right direction.

The upper and lower tent areas 2 and 3 are connected by the string 15 in order from one end side to the other end side in the front-rear direction, and the outer peripheral edges of the upper and lower tent areas 2 and 3 are heat-welded to form an air tent. to make. At this time, when air is forced into the airtight chamber 4 of the tent body 1 from the blower 6, the air is filled in the entire airtight chamber 4 through the gap 19. Ventilation holes 20 penetrating in the front-rear thickness direction are opened in each of the upper and lower connecting pieces 13, and the entire airtight chamber 4 is filled with air also by using the ventilation holes 20.

As shown in FIG. 5, the tent body 1 is now separated into front and rear air tubes 2 with each connecting portion 17 interposed therebetween.
1 and 21 are in communication with each other through the gap 19. That is, each of the many air tubes 21 arranged in front and rear is connected to the connecting piece 1.
3 is a beam, which has an arched shape in which it is convex inward in a front view shown in FIG. 2, and the connection portion 17 is concave in a side view of FIGS. 3 and 5, and each air tube 21 is a convex shape that bulges inward and outward. To expand. That is, when the tent body 1 is inflated, the left and right central portions have a wide width in the vertical direction when viewed from the front, and the width becomes narrower in the vertical direction toward the left and right end sides, so that an air tent that is well-shaped as a whole can be obtained. It is desirable that the air is press-fitted into the airtight chamber 4 continuously or intermittently while the tent is in use while the amount of air to be pumped is appropriately adjusted. However, it is also possible to simply seal the air filled in the airtight chamber 4 by using the check valve after pressurizing the air. When the air is released from the airtight chamber 4, the tent body 1 can be compactly folded for convenient carrying.

(Second Embodiment) FIGS. 7 and 8 show a second embodiment of the air tent according to the present invention. As a connecting means for the upper and lower tents 2 and 3, a left and right laterally long body having a predetermined vertical width. The net 22 is used. That is, the bias tape 23 made of a synthetic resin sheet is folded and folded in two at the upper and lower ends of the net 22 made of synthetic resin, and they are integrally heat-welded together. Then, at each of the above-mentioned connecting portions 17, the upper end portion of the net 22 is sewn to the upper tent land 2 via the bias tape 23, and the lower end portion of the net 22 is attached to the lower tent place 3 via the bias tape 23. Are sewn on. Also by this, the upper and lower tents 2 and 3 are not heat-welded to each other in a surface contact state, which facilitates the production.

At this time, the vertical width of the net 22 is set so as to gradually decrease from the left and right central portions toward the left and right ends, and the right and left length of the upper tent site 2 is set to the lower tent site 3.
The size should be set larger than that. At this time, if air is pressed into the airtight chamber 4, air can be filled in the airtight chamber 4 as a whole through the mesh of the net 22, and the net 22 can be used to fill the upper tent site 2.
The lower tent ground 3 and the lower tent ground 3 can be connected and held in a state of being vertically separated from each other for a certain amount of time, and each air tube 21, that is, the tent main body 1 as a whole bulges into a convex arch shape. Other configurations are the first
It is similar to the embodiment.

(Third Embodiment) FIG. 9 shows a third embodiment of the air tent according to the present invention.
The connecting piece 13 of the first embodiment is omitted as the connecting means of
Only the string 15 is used. That is, the upper tent site 2 and the lower tent site 3 are sewn together at the connecting points 17 with the cord 15 in the left-right direction. However, both tents 2 and 3 are connected by the cord 15 so that a constant gap 19 is formed between the upper and lower tents 2 and 3 when air is pressed into the airtight chamber 4. Also in this case, when air is pressed into the airtight chamber 4, the entire airtight chamber 4 can be filled with the air through the gap 19, and the string 15 connects the upper tent site 2 and the lower tent site 3 in the airtight chamber 4. It can be connected and held in a separated state for a certain period. At this time, the right and left lengths of the upper tent land 2 are set to be longer than those of the lower tent ground 3, so that each air tube 21 is shown in FIGS. 2 and 3 in the first embodiment. Similarly, when viewed from the front, it has a convex arch shape.

[Brief description of 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 usage state of the first embodiment.

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

FIG. 4 is a front view schematically showing a disassembled component member of the first embodiment.

FIG. 5 is a vertical sectional side view of a main part of the first embodiment.

FIG. 6 is an enlarged vertical cross-sectional side view of a main part at a connection point of the first embodiment.

FIG. 7 is a vertical cross-sectional front view of a main part of the second embodiment.

FIG. 8 is a vertical cross-sectional side view of a main part of the second embodiment.

FIG. 9 is a vertical sectional side view of a main part of the third embodiment.

FIG. 10 is a vertical sectional side view of a main part of a conventional example.

[Explanation of symbols]

 1 tent body 2 upper tent ground 3 lower tent ground 4 airtight chamber 13 connecting piece 15 string 17 connecting part 19 gap 21 air tube

Claims (8)

[Claims] 1. A tent body 1 has an upper tent land 2 and a lower tent land 3 whose outer peripheral edges are joined to each other, and air is press-fitted between the upper tent land 2 and the lower tent land 3. In the air tent in which the airtight chamber 4 that allows the above is formed, the upper tent 2
One end of each connecting piece 13 in the up-down width direction is fixed to the inner surfaces of the lower tent and the lower tent land 3 in the up-down width direction at a constant pitch in the front-rear direction. When 13 are connected by a string 15 and air is press-fitted into the airtight chamber 4, both connecting pieces 13.1.
An air tent characterized in that a predetermined gap 19 is formed between free ends of 3 in the vertical width direction. 2. The air tent according to claim 1, wherein an upper end of an upper connecting piece 13 is heat-welded to the upper tent land 2, and a lower end of the lower connecting piece 13 is heat-welded to the lower tent land 3. 3. The vertical width of the upper and lower connecting pieces 13, 13,
The dimensions are set so as to gradually decrease from the left and right central portions toward the left and right ends, and the gaps 19 between the connecting pieces 13, 13 are set to have substantially the same dimension in the left and right direction. The listed air tent. 4. The air tent according to claim 1, 2 or 3, wherein an upper edge and a lower edge of each of the upper and lower connecting pieces 13, 13 are formed in an arch shape which is convexly curved upward. 5. The tent body 1 has an upper tent land 2 and a lower tent land 3 whose outer peripheral edge portions are joined to each other, and air is press-fitted between the upper tent land 2 and the lower tent land 3. In the air tent in which the airtight chamber 4 allowing the above is formed, a laterally long net 22 having a predetermined vertical width is provided, and each net 22 is provided on the inner surface of the upper tent site 2 and the lower tent site 3 in the lateral direction thereof. An air tent characterized in that upper and lower ends are sewn at a constant pitch in the front-rear direction. 6. The air tent according to claim 5, wherein the upper and lower widths of the net 22 are set so as to become gradually smaller from the left and right central portions toward the left and right ends. 7. The tent main body 1 has an upper tent land 2 and a lower tent land 3 whose outer peripheral edge portions are joined to each other, and air is press-fitted between the upper tent land 2 and the lower tent land 3. In the air tent in which the airtight chamber 4 that allows the airtight chamber 4 is formed, the upper tent land 2 and the lower tent land 3 are directly sewn together with the cord 15 in the left-right direction at regular intervals in the front-rear direction. When pressing in, the upper and lower tent areas 2.3
An air tent characterized in that a predetermined gap 19 is formed between the left and right. 8. The lateral length of the upper tent site 2 is set to be larger than the lateral length of the lower tent site 3.
The listed air tent.