JP4180777B2 - tent - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tent, and in particular, suppresses deformation of a tent by a strong wind, in particular, deformation of a pole, and prevents the pole from being damaged by the deformation.
[0002]
[Prior art]
Conventionally, as this type of tent, a hook-suspended tent as shown in FIG. 10 has been provided. In this tent, the ground portion 1a of the inner tent 1 is spread over the ground, and the holding stake 30 is driven into the ground through the rings R extending from the grommets 4 attached to the four corners of the ground portion 1a to fix the inner tent 1, The pole 3 is curved in an arch shape (substantially inverted U-shape), the tip 3a, 3b of each pole 3 is grounded through the hole 4a of the grommet 4, and the pole 3 is raised from the ground in an X shape. ing. The tent cloth 1b of the inner tent 1 has hooks 5 that protrude from the pole 3 at a required interval, and the inner tent 1 is suspended from the inner surface of the pole 3. Thereafter, the outer tent 7 is put on the outer surface of the pole 3, and the four corners of the outer tent 7 are connected to the four corners of the inner tent 1.
[0003]
In addition to the method of hanging the inner tent on the pole 3 using a hook, as shown in FIG. 11, the inner tent is passed through the sleeve 3 c at both ends provided on the outer surface of the tent cloth 1 b of the inner tent 1 through the pole 3. There is also a sleeve type in which the tent 1 is suspended from the pole 3.
The hook-type tent has an advantage that the tent can be set up easily and in a short time because the hook 5 is hooked on the pole 3 and suspended as compared with the sleeve-type tent described later.
[0004]
Further, in the tent that suspends the tent cloth from the hook or the sleeve to the pole, the tent cloth that constitutes the tent is a substantially triangular sheet from the edge that contacts the ground to the point reaching the apex on each side surface. A cloth or several cloths are joined to each other, and the edge of the triangular cloth on each side is sewn. For example, in an X-type tent having a square shape on the ground installation side, four triangular cloths N are used and the edges of these cloths are sewn together.
[0005]
As shown in FIG. 12, the triangular cloth N constituting each side of the tent cloth is cut from a large piece of cloth, and is indicated by arrows X and Y in the drawing in order to minimize loss at the time of cutting. The ground eye direction is cut so as to be the lower side N1 of the triangular cloth N. As a result, the ground direction X of each fabric N constituting the tent cloth is parallel to the ground horizontal plane S when the tent is set up, and the perpendicular ground direction Y is perpendicular to the ground horizontal plane S. .
[0006]
[Problems to be solved by the invention]
Recently, poles tend to be thinner due to the demand for weight reduction, and they are easily deformed by wind pressure, and this type of tent is often used for mountain climbing and trekking, and the wind pressure is high in mountainous areas Therefore, the pole is easily deformed. Therefore, the tent is required to have excellent wind resistance and bend or break even when subjected to strong winds.
When both ends of the pole are fixed to the ground and standing in an arch shape, as shown in FIG. 13A, when receiving a strong cross wind from the left, the left side 3L of the pole 3 is greatly inclined to the right side, Since the lower end of the right side 3R of the pole is fixed to the ground, as shown in the drawing, it is inclined or curved inward from the apex P to the installation point G, and there is stress in the vicinity of the apex P of the right side 3R on the leeward side. concentrate. When the cross wind is received from the right in the opposite direction, stress concentrates in the vicinity of the apex of the left side 3L, which is the lee of the pole 3, as shown in FIG. When used for climbing a mountainous mountain in Takamine, the strength of the wind is severe, and depending on the wind force, it can be expected that the stress concentration point M will eventually break.
[0007]
In particular, in the tent of the type shown in FIG. 10 in which a hook is attached to the tent cloth and the hook is locked to the pole, the pole is easily bent by the wind because the binding force of the pole by the tent cloth is weak. In the case of the sleeve type, the binding force of the pole by the tent cloth is stronger than that of the hook type, but if it is still subjected to a strong wind, the above-mentioned bending of the pole and eventually the problem of damage to the pole may occur. is there.
[0008]
In addition, as for the tent cloth constituting the tent, as shown in FIG. 12, the cloth N constituting each part of the tent is parallel to the horizontal plane S of the ground when the tent is set up, and is perpendicular to the ground horizontal direction S. Y is perpendicular to the ground horizontal plane S.
[0009]
As is well known, the fabric is less likely to extend in the ground direction (X, Y), and is most likely to extend in the direction (Z1, Z2) inclined by 45 ° with respect to the ground direction. Therefore, when the conventional awning cloth cut as described above is set up, each cloth N of the awning cloth is easy to extend in the inclined direction on the ground horizontal plane S.
As a result, as shown in FIGS. 13 (A) and 13 (B), when the bend is generated in the pole due to the cross wind, the tent cloth connected to the pole also extends in the inclined direction, so that the restraint force against the bend of the pole is exhibited. No.
Specifically, as shown in FIG. 13 (A), when the left side 3L of the pole inclines in the left direction in response to the cross wind from the left, the portion connected to the left side 3L of the tent cloth N also follows the inclination of the pole 3 Thus, the tent cloth N cannot exert a binding force against the bending of the pole 3 extending in the inclination direction. Similarly, when receiving the crosswind from the right shown in FIG. 13B, the tent cloth extends to the left following the pole inclined to the left.
[0010]
In this way, the extension direction of the tent cloth is the same direction as the inclination direction of the pole, so it is not possible to suppress the bending of the pole by the tent cloth, especially when the tent cloth is suspended from the pole via the hook. In addition to the fact that the binding force on the pole is weak, the awning does not function to suppress the bending of the pole. When the tent cloth is suspended from the sleeve through the pole, the tent cloth is more restrained by the tent cloth than the hook, but the tent cloth itself extends in the inclination direction of the pole. Is weak.
[0011]
The present invention has been made in view of the above problems, and it is an object to strengthen the restraint force on the pole by the tent cloth and to prevent the pole from being inclined and bent by a crosswind and to prevent the occurrence of breakage of the pole with certainty. It is said.
[0012]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention is a tent including a pole that is fixed to the ground at both ends and erected in an arch shape, and a tent cloth that is suspended from the pole.
The direction of the fabric of the cloth constituting the tent cloth is inclined with respect to the ground horizontal plane, the elongation in the inclination direction with respect to the ground is reduced, and the wind resistance against the cross wind against the tent installed on the ground is increased, There is provided a tent characterized in that it is configured to reduce the bending due to crosswind generated in a pole connected to a tent cloth.
[0013]
As described above, when the fabric of the tent cloth is inclined with respect to the ground horizontal plane with respect to the ground direction of the ground, the tent cloth can be in a state in which there is almost no elongation in the inclined direction with respect to the ground horizontal plane. Therefore, even if the tent receives a crosswind and the apex of the pole moves from the wind receiver side to the leeward side and tries to deform, and the tent cloth that is connected to the pole on the wind receiver side is pulled in the tilt direction, Since there is almost no elongation in the tilt direction, the tent cloth does not follow the deformation of the pole, and conversely suppresses the deformation of the pole. Thus, as a result of suppressing the deformation of the pole by the tent cloth when receiving a strong crosswind, it is possible to reliably prevent the occurrence of breakage near the apex on the leeward side that occurs when the pole is greatly deformed.
[0014]
In addition, if the direction of the ground of the tent cloth is the inclination direction as described above, the extension of the tent cloth in the vertical direction and the lateral direction becomes large. However, in the vertical direction, when the tent receives a strong wind from above due to the wind blown down, the tent cloth does not have a pulling action, and all the poles used are wind resistant. There is no problem. Also, in the horizontal direction, the tent cloth is stretched in an arch shape with its lower end fixed, so it is always tilted by the crosswind, and there is no direct lateral (horizontal) pulling force acting on a part of the tent. Not.
[0015]
It is preferable that the tent cloth is inclined from the ground installation surface to the top of the pole.
However, at least the cloth near the top of the pole where stress is likely to concentrate when the pole is deformed, preferably, the eye direction of the upper half of the tent cloth should be inclined, and the entire area of the tent cloth is not necessarily inclined. There is no need.
In many cases, each part of the tent cloth is composed of a single piece of cloth from the ground installation side to the top of the pole. good. In this case, the fabric direction of the plurality of fabrics is inclined as described above, or at least the fabric direction of the fabric on the apex side of the pole is inclined.
[0016]
In addition, the inclination angle of the ground of the tent cloth is in the range of 30 ° to 60 ° with respect to the ground horizontal plane, preferably 35 ° to 55 °. Most preferred because it can. It should be noted that the inclination angle of the ground of the tent cloth is defined by the direction of the ground line relative to the ground installation line on the lower side of the tent cloth.
[0017]
It is preferable that the tent fabric is formed of a fabric having little stretch as a whole, and a yarn having a stretchability of 30% or less is used. When the yarn has a stretchability of 30% or less, when the yarn is used as a woven fabric, the fabric can be made almost free from stretching in the eye direction. The weaving method is preferably plain weaving.
[0018]
The tent cloth is preferably formed from a synthetic fiber such as polyester fiber or nylon fiber in view of the strength of the cloth.
[0019]
The tent of the present invention is particularly preferably used in a type in which it is suspended from a tent cloth on a pole via a hook. Specifically, the tent cloth is sewn together with a ground installation cloth to form an inner tent, and the hook attachment cloth is sewn at an interval to the tent cloth, and the connecting cloth for connecting these hook attachment cloths. A tent that has an outer tent that covers the outer surface of the pole from which the tent cloth is suspended, and is attached to the tip of the hook attachment cloth. It can be suitably applied to.
[0020]
That is, when the tent cloth is hung on the pole via the hook, the binding force of the pole by the tent cloth is weaker than that of the type in which the tent cloth is suspended by passing the pole through the sleeve. The function of the direction of the ground of the tent cloth can increase the binding force on the pole, and can suppress the deformation of the pole due to a strong crosswind. In the case of the sleeve type as well, if the eye direction of the tent cloth is inclined with respect to the ground plane, the binding force of the tent cloth on the pole can be increased. Therefore, it goes without saying that it is preferable to apply the present invention to the sleeve type.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 and FIG. 2 show an X-type hook-suspended tent that is installed, and each pole 12 is fixed to the ground at both ends and is erected in an arch shape. The tent fabric 15 is suspended through a hook 17. A square ground cloth 14 is sewn to the lower side of the tent cloth 15, and the tent cloth 15 and the ground cloth 14 constitute an inner tent 10, and a waterproof cloth is formed on the outer surface side of the inner tent 10 and the pole 12. It is set as the structure which covers the outer tent 11 which becomes.
[0022]
The tent cloth 15 is composed of four triangular cloths 15A to 15B, and the oblique sides of these cloths 15A to 15D are sewn to form the substantially quadrangular pyramid tent cloth 15.
Each of the tent cloths 15A to 15D is formed of a woven fabric plain-woven from yarns that hardly stretch in both warp and weft. In this embodiment, a polyester plain woven fabric is used.
[0023]
As shown in FIGS. 1 and 3, the tent cloths 15 </ b> A to 15 </ b> D have an angle θ <b> 1 of weft and warp ground direction X, Y with respect to the ground installation side (a) to be sewn with the ground cloth 14. θ2 is inclined at 45 °.
[0024]
As shown in FIG. 4, the tent cloths 15A to 15D cut four tent cloths 15A to 15D from one large original fabric 100. It is parallel to the horizontal and vertical directions. The tent cloths 15A to 15D are sewn together so that the side (b) of the quadrangular pyramid is aligned with the lower side 100a of the original fabric 100, and the side (c) of the other ridge line is cut vertically from the lower side 100a. Therefore, the ground installation piece (a) is cut at an angle of 45 degrees with respect to the longitudinal and lateral directions of the original fabric 100.
By cutting in this way, the ground eyes X and Y of the tent cloths 15A to 15D can be inclined at an angle of 45 ° with respect to the ground installation side (a) without causing loss during cutting. it can.
[0025]
Note that it is not necessary to form all four tent cloths with a single cloth, and the upper part may be a separate cloth or the like, but in this case as well, the ground direction is the ground installation side (a) as described above. It is inclined at an angle of 45 ° to the angle.
[0026]
As shown in FIG. 1, a hook attachment cloth 16 is projected along a ridge line of the tent cloth 15 with a required interval, and a hook 17 is attached to the tip thereof. Further, a connecting cloth 18 is attached between adjacent hook attaching cloths 16 to prevent the hook 17 from being displaced with respect to the pole 12. The connecting cloth 18 is sewn to the awning cloth 15 and the hook attaching cloth 16, and the connecting cloth 18 is attached along the entire length of the pole 12 to which the hook 17 is attached.
The hook attaching cloth 16, the connecting cloth 18, and the hook 17 are preferably configured as disclosed in Japanese Patent Application Laid-Open No. 10-199275, which is a prior application of the present applicant.
[0027]
As shown in FIGS. 5A and 5B, the pair of poles 12 to which the hooks 17 are attached are configured by passing elastic strings 12b through a plurality of metal cylinders 12a of about 30 cm to 40 cm. It is a long pole and can be folded when not in use. The hooks 17 are provided at intervals so that one hook is attached to one metal cylinder 12a.
[0028]
As shown in FIG. 6, a pole tip insertion bag 16 is provided at the lower end of the four ridge lines of the awning portion 15 that is continuous with the four corners of the ground cloth 14 of the inner tent 10. The heights of the bags 16 are such that the poles 12 can be supported without falling down when both ends of the poles 12 are inserted into the diagonally-positioned bags 16 and bent into an inverted U shape (arch shape). Is set. On the outer surface of the bottom portion of the bag 16, a band cloth 22 having a connector 21 attached to the outer tent 10 is sewn and protruded, and a string constituting a link 23 for inserting a holding pile is attached to the band cloth 22. ing.
[0029]
Next, the assembly direction of the tent will be described. As shown in FIG. 7, the ground cloth 14 of the inner tent 10 is spread on the ground. Next, the holding pile 30 is driven into the ground through the rings 23 protruding from the four corners of the ground cloth 14, and the ground cloth 14 is fixed to the ground.
Next, one end of one pole 12 is inserted into one of the four corner bags 16 of the inner tent 10, the pole 12 is curved in an arch shape, and the other end of the pole is formed into a diagonal bag 16. insert. Thus, since both ends of the pole 12 are inserted and held in the required length bag 16, even if the hand is released from the pole 12, the pole can be kept standing in a curved and raised state. Similarly, both ends of the other pole 12 are inserted into the bag 16 to be self-supporting, and a frame composed of the X-shaped pole 12 in a plan view is erected on the ground cloth 14 by these two poles 12.
[0030]
Next, the tent cloth 15 of the inner tent 10 is pulled up, and the hooks 17 are sequentially attached to the pole 12. At this time, since the pole 12 is self-supporting, it is not necessary to attach the hook 17 to the pole 12 while holding the pole 12 by hand as in the prior art. Can be shortened. Thus, by attaching the hooks 17 to the two poles 12 respectively, the tent cloth 15 of the inner tent 10 is suspended on the inner surface side of the pole 12 in a substantially quadrangular pyramid shape as shown in FIG. Thereafter, the outer tent 11 is covered.
[0031]
In the tent assembled in the above procedure, the ground direction X and Y of the four tent cloths 15A to 15D constituting the quadrangular pyramid is inclined 45 °, so the tent cloth is 45 ° to the right and 45 ° to the left. Does not stretch in the direction. On the other hand, the vertical direction inclined by 45 ° with respect to the direction of the ground and parallel to the ground plane extend in the horizontal direction.
[0032]
Therefore, as shown in FIG. 8 (A), the tent cloth on the side connected to the left side 12L of the pole 12 via the hook 17 even when the pole 12 is tilted to the right by receiving a strong crosswind from the left direction. Since it does not extend in the right inclination direction, the pole 12 is restrained without following the deformation of the right inclination of the pole 12, and the deformation of the pole 12 is suppressed. As a result, the right side 12R of the leeward pole 12 is not greatly deformed, a stress concentration point in the vicinity of the apex that occurs at the time of large deformation does not occur, and the occurrence of breakage of the pole 12 can be reliably prevented.
As shown in FIG. 8B, the same applies when a strong crosswind is applied from the right direction. Even if the right side 12R of the pole 12 is inclined to the left side, the tent cloth connected through the hook 17 is inclined in the left direction. The pole 12 is constrained and the deformation of the pole 12 is suppressed. As a result, the left side 12L of the leeward pole 12 is not greatly deformed, and breakage in the vicinity of the apex of the pole can be prevented.
In a wind tunnel experiment, the results of a comparative experiment between the case where the tent cloth's ground direction is inclined with respect to the ground and the conventional case where the tent cloth is horizontal and perpendicular to the ground show that the present invention is more It was confirmed that the pole was not greatly deformed.
[0033]
Further, the hook 17 that connects the pole 12 and the tent cloths 15 </ b> A to 15 </ b> D has the hook attachment cloth 16 sequentially connected by the connection cloth 18, so that the movement of the hook 17 is suppressed and the hook 17 is attached to the pole 12. Can be fixed at a fixed position. As a result, the mounting position of the pole 12 by the hook 17 does not change even when a crosswind strikes, so the support force for the pole 12 increases, the pole 12 does not easily shake, and the deformation is reduced even when a strong wind strikes it. The wind resistance ability can be increased.
[0034]
The present invention is not limited to the X-type tent composed of the four tent cloths described above, and if the ground of the tent cloth is inclined with respect to the installation surface, the sleeve 12 shown in FIG. A tent with a tent cloth 15 suspended, a tent using three hook-type poles 12 shown in FIG. 9B, and a tent using five hooks 12 with a hook type shown in FIG. 9C. The present invention can also be applied to a large tent using seven poles 12 of the hook type shown in FIG.
[0035]
【The invention's effect】
As is clear from the above description, according to the present invention, the direction of the ground of the tent's tent cloth is inclined with respect to the ground so that the extension in the inclined direction is almost eliminated. The deformation of the pole can be constrained by the tent cloth when it is received, and the deformation of the pole can be suppressed. As a result, stress concentration is not generated on the leeward side near the apex of the pole when a strong crosswind is received, and the occurrence of breakage of the pole can be reliably prevented.
[0036]
In addition, inclining the direction of the ground of the tent cloth with respect to the ground as described above is only necessary to change the cutting direction of the tent cloth, and is devised so as not to cause material loss during cutting. It is possible to provide a tent having a high wind resistance against crosswinds without increasing costs.
[0037]
In particular, when applied to a tent that suspends the tent by means of a hook that is easy to set up the tent, a tent that is resistant to crosswinds can be obtained by devising the direction of the ground of the tent.
[Brief description of the drawings]
FIG. 1 is a schematic front view of a state in which a tent according to an embodiment of the present invention is installed.
FIG. 2 is a perspective view showing a state where an inner tent is suspended from a pole.
FIG. 3 is a schematic plan view of the tent cloth of the tent.
FIG. 4 is a drawing showing a cutting direction of a tent cloth.
5A and 5B show a pole, where FIG. 5A shows an extended state, and FIG. 5B shows a folded state.
FIG. 6 is a view showing a state in which a pole is attached to a tent cloth.
FIG. 7 is a schematic view showing an assembling method.
FIGS. 8A and 8B are views showing a state where the tent of the present invention is not greatly deformed by a crosswind.
FIGS. 9A to 9D are schematic views showing modifications of the present invention.
FIG. 10 is a schematic view showing a conventional tent.
FIG. 11 is a schematic view showing another conventional tent.
FIG. 12 is a drawing showing a conventional method for cutting a tent tent cloth.
FIGS. 13A and 13B are diagrams showing conventional problems. FIGS.
[Explanation of symbols]
10 Inner tent 11 Outer tent 12 Pole 14 Ground cloth 15 (15A to 15D) Tent cloth 17 Hook X, Y Eye direction

Claims (5)

In a tent with a pole that is fixed to the ground at both ends and erected in an arch shape, and a tent cloth that hangs on the pole,
The direction of the fabric of the tent cloth is inclined with respect to the ground horizontal plane, the elongation in the inclination direction with respect to the ground is reduced, and the wind resistance against the cross wind against the tent installed on the ground is increased, A tent characterized in that it is configured to reduce bending due to crosswinds generated in a pole connected to a tent cloth. The tent cloth has a ground angle inclined over the entire area from the ground installation surface to the top of the pole, and the inclination angle of the ground angle is in a range of 30 ° to 60 ° with respect to the ground horizontal plane. The tent according to 1. The tent according to claim 1 or 2, wherein the tent fabric is a plain weave of yarn having a stretchability of 30% or less. The tent according to any one of claims 1 to 3, wherein the tent cloth is made of polyester fiber or nylon fiber. The tent cloth is sewn to the ground installation cloth to form an inner tent, and the hook attachment cloth is sewn to the tent cloth with a gap, and the connecting cloth for connecting these hook attachment cloths is sewn to the tent cloth. A hook is attached to the tip of the hook attachment cloth, and an outer tent is provided to cover the outer surface of the pole from which the tent cloth is suspended. 5. The tent according to any one of 4 above.

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