JP2000291295A - Articulated folding tent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To unfold a tent at a desired speed without necessitating an especially large force and to fold it in small sizes even when it is a large-sized one. SOLUTION: This articulated folding tent comprises a first fitting element 10 to which a plurality of supports composed of three or more arms 11, 12 and 13 connected with each other by joints 30, 40 and 50 are fitted, at one end, at equal intervals so that they can rotate in the vertical direction and which is positioned at the top of a tent, a second fitting element 20 to which opening-closing arms 14 connected respectively to the first arms 11 extending from the first fitting element 10, through the joints 30, are fitted at equal intervals so that they can rotate in the vertical direction, and a tent fabric which is engaged with each arm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-joint folding tent which can be folded down from a used state to a small state by simple operation and can be expanded from a folded state to a used state.

[0002]

2. Description of the Related Art Hitherto, there has been known a folding tent in which an elastically deformable polygonal pillar is integrally fixed to a tent ground to form a polyhedron. To fold this tent, the faces of the unfolded polyhedron are superimposed, the struts are twisted using elastic deformation, they are superimposed and restrained as smaller polygons, and stored in a compact form. be able to. On the other hand, in the case of unfolding from a folded state, when the folded constraint is released, the original size of the polygon is restored on its own by the elastic force of the support, so that one worker can easily use the polygon. be able to.

There has also been proposed a two-stage folding type tent in which a plurality of struts having one end rotatably united at one location are folded in two steps and a tent ground is locked to each of the struts.

[0004]

The folding tent of the type in which the elastically deformable polygonal column is twisted is applicable only to those having an even number of surfaces, and the operation of twisting the column when folding is performed. A certain amount of force is required because it is necessary, and when deploying, it is necessary to pay attention to the surrounding conditions because it is opened at a stretch by the elastic force of the support. In this respect, a two-fold tent can be handled without much power and can be deployed slowly, but if it is slightly larger, the size when folded will be larger. However, there is a problem that the storage space becomes large.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and does not require a particularly large force for handling, and can be deployed at a desired speed. The purpose is to provide a tent.

[0006]

According to a first aspect of the present invention, there is provided a tent in which one end of a plurality of columns composed of three or more arms connected to each other by joints is mounted at equal intervals so as to be rotatable in a vertical direction. A first mounting tool located at the top, a second mounting tool in which opening and closing arms connected through joints to respective first arms extending from the first mounting tool are mounted at equal intervals so as to be vertically rotatable; It is characterized by comprising a tent ground locked to each arm. The invention according to claim 2 is characterized in that the joint is a male engagement tool to which one arm is connected,
A female engagement tool to which the other arm is connected is rotatably connected to each other, and a link is connected between the joints in parallel with the arm. The invention according to claim 3 is characterized in that the first attachment has a center hole formed therein, and a folding cord is connected to a joint between the first arm and the second arm through the hole. Claim 4
The invention of the present invention is further characterized in that a deployment cord is connected to the second attachment through the hole.

[0007]

Embodiments of the present invention will be described below. FIG. 1 is a cross-sectional view illustrating a right half of a frame of the articulated folding tent according to the present invention.
(A) is a view showing a state where the tent is deployed, and FIG.
FIG. 1B is a diagram showing a state in the middle of folding, and FIG. 1B is a diagram showing a substantially folded state. The tent shown in this example is a three-stage foldable type, and the first arm attachment 10 is located near the center of the top of the tent, and the base end of the first arm 11 is attached to the tent so as to be rotatable in the vertical direction. The base end of the second arm 12 is attached to the tip end of the first arm so as to be rotatable in the vertical direction, and the base end of the third arm 13 is attached to the tip end of the second arm so as to be rotatable in the vertical direction. , The first, second, and third arms constitute one column of the polyhedron of the tent. This pillar has N pillars (N is 3
The above integers are provided, and a tent (not shown) is locked to each arm.

The opening / closing arm mounting device 20 is rotatably attached to the base end of the opening / closing arm 14 rotatably connected to each of the first arms 11 so as to be vertically moved when the tent is unfolded or folded. Has become.

As shown in FIG. 2, the first arm attachment 10 has a central hole 10a through which a deployment cord used for unfolding and folding the tent and a folding cord (not shown) are passed.
Grooves 10b are formed at equal intervals in the circumferential direction on a disc with an opening corresponding to the number of columns, and the base end of the first arm 11 is rotatable in the vertical direction in each groove 10b. Attached to.

The opening / closing arm attachment 20 has the same structure as the first arm attachment 10, and has a central hole for inserting and fixing a deployment cord (not shown) extending from the first arm attachment 10. The groove 20 is formed on the disc having the opening 20a.
b are formed at equal intervals in the circumferential direction by the number of opening and closing arms,
The base end of the opening / closing arm 14 is attached to each groove 20b so as to be rotatable in the vertical direction.

The first arm 11 and the opening and closing arm 14 are
In the joint 30, the first arm 11 and the second arm 12
In the joint 40, the second arm 12 and the third arm 13
The first parallel link 15 and the second parallel link 16 are respectively connected to the first joint and the second joint, and between the second joint and the third joint in parallel with the arms by the joints 50 so as to be rotatable in the vertical direction. Are provided respectively.

The first joint 30, as shown in FIG.
Female engaging device 3 movably or fixedly installed on arm 11
1 and a male engaging member 32 fitted in a groove formed in the female engaging member 31 and rotatably connected to the female engaging member 31 with a pivot pin 33. The opening / closing arm 14 is
Are connected, and two first parallel links 15 are rotatably attached to both sides of the male engaging member 32 by pins 34.

The second joint 40 is, as shown in FIG.
A female engaging member 41 to which the arm 12 is connected;
Of the female engaging tool 41 with the pivot pin 44.
And two male parallel links 16 on both sides of the male engaging tool 42.
Are rotatably connected by pivot pins 45, and two first parallel links 15 are rotatably mounted on pivot pins 43 on both sides of the end of the female engagement tool 41.

The third joint 50, as shown in FIG.
A female engaging member 51 to which the arm 13 is connected;
Of the female engaging device 51 with the pivot pin 54.
The second arm 12 is connected to the male engaging tool 52, and two male engaging tools 52 are provided on both sides of the end of the female engaging tool 51. The two parallel links 16 are rotatably mounted on pivot pins 53.

Next, folding and unfolding operations of the tent having such a frame structure will be described. Fig. 1
(A), FIG. 1 (b), and FIG. 1 (c). In other words, in a state of being deployed as shown in FIG. 1A, a folding string (not shown) passing through a hole of the first arm attachment 10 is connected to, for example, a portion of the second joint 40, When the string is pulled upward, the portion of the second joint 40 is pulled inward of the tent. As a result, the second parallel link 16 passes through the pivot pin 53 of the third joint 50 and the female engagement device 5
1, the third arm 13 rotates counterclockwise with respect to the second arm 12 with the pivot pin 54, and the state shown in FIG. Further, when the string is pulled or the second joint 40 is pulled inward and the third arm is folded, as shown in FIG. 1C, the first arm 11, the second arm 12, and the third arm 13 are folded. Are folded to overlap.

Next, when unfolding from the folded state, as shown in FIG.
When the string (not shown) connected to the opening / closing arm attachment 20 is pulled upward through the hole, the opening / closing arm attachment 20 is raised, and the opening / closing arm 14 is moved through the first joint 30 to the first arm 11. Rotates the first arm attachment 10 in the counterclockwise direction. At this time, the first parallel link 15 pulls the end of the female engagement tool 41 through the pivot pin 43, and as a result, the second arm 12 rotates clockwise about the pivot pin 44. At this time, the second parallel link 16 pulls the end of the female engaging member 51 through the pivot pin 53, and the third arm 13 rotates counterclockwise around the pivot pin 54,
As a result, the third joint 50 is opened to be as shown in FIG. 1B, and by further raising the opening / closing arm mounting tool 20, it is deployed as shown in FIG. 1A.

As described above, the unfolding and folding can be easily performed only by using the unfolding string and the folding string and pulling the joint or folding or opening the joint. is there. The multi-joint folding tent of the present invention can be applied to any polyhedron such as a trihedron, a tetrahedron (FIG. 7), a pentahedron (FIG. 8), and a hexahedron (FIG. 9). In addition, the number of folding steps is not limited to three, but may be four, five or five.
The size at the time of folding can be reduced by appropriately selecting the steps and the like as needed and increasing the number of steps. FIG. 10 shows an example of five-stage folding, in which five arms are connected by five joints, so that they can be easily expanded and folded similarly to the three-stage type shown in FIG. When the number of steps is increased in this way, it is only necessary to increase the number of joints and arms.

[0018]

As described above, according to the present invention, the frame of the tent can be folded at the joints, so that the tent can be easily folded and deployed without requiring any special force.
Furthermore, by using a multi-stage folding structure, even a large tent can be stored compactly.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a skeleton of an articulated folding tent according to the present invention.

FIG. 2 is a diagram illustrating a first arm attachment.

FIG. 3 is a diagram illustrating an opening / closing arm attachment.

FIG. 4 is a diagram illustrating a first joint.

FIG. 5 is a diagram illustrating a second joint.

FIG. 6 is a diagram illustrating a third joint.

FIG. 7 shows a tetrahedral tent.

FIG. 8 shows a pentahedral tent.

FIG. 9 is a diagram showing a hexahedral tent.

FIG. 10 is a view showing a five-stage folding tent.

[Explanation of Signs] 10: first arm attachment tool, 11: first arm, 12
... second arm, 13 ... third arm, 14 ... open / close arm,
15 ... first parallel link, 16 ... second parallel link, 20 ...
Opening / closing arm mounting tool, 30: first joint, 40: second joint, 50: third joint.

Claims (4)

[Claims] A first mounting member located at the top of a tent at which one ends of a plurality of columns composed of three or more arms connected to each other by joints are mounted at equal intervals so as to be rotatable in a vertical direction; A second mounting device in which opening and closing arms connected through joints to respective first arms extending from the first mounting device are mounted at equal intervals so as to be rotatable in a vertical direction, and a tent ground locked to each arm. A multi-joint foldable tent. 2. The joint according to claim 1, wherein a male engaging device to which one arm is connected and a female engaging device to which the other arm is connected are rotatably connected to each other. The articulated folding tent according to claim 1, wherein a link is connected in parallel with the arm. 3. The first mounting device according to claim 1, wherein a center hole is formed, and a folding cord is connected to a joint between the first arm and the second arm through the hole. Articulated folding tent. 4. The multi-joint folding tent according to claim 3, further comprising a deployment cord connected to the second attachment through the hole.