JPH0842785A - Multipurpose compound leg structure - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a multi-use multi-legged structure which is durable and can be used for a long period of time and has various uses. [Structure] Three tubular bodies 2 of the same size and three bolts 4 that penetrate through the respective bolt insertion holes 4 formed near one end of the tubular body 2
It consists of a three-pronged bolt 3 having a threaded portion 5 and a nut 7 that is screwed into the threaded portion 5. The other end of the tubular body 2 is bundled and connected by the three-pronged bolt 3 so that it can be expanded. When the nut 7 screwed in is loosened and the other end is expanded, the tube body 2 rotates around each screw part 5 of the three-pronged bolt 3 to set a triangular pyramid-shaped tripod structure. It is used as a three-pronged tree for protecting snow damage from young trees, and when the tubes 2 are folded in parallel, they can be made into a rod-like compact shape, which is convenient for storage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-purpose multi-legged structure, and for example, a small one can be used as a three-pronged tree for protecting young trees, a rice tie hanging support for rice cookers at camps, etc. In addition, large ones can be used for various purposes such as construction turrets and tent frames.

[0002]

2. Description of the Related Art Generally, when planting trees, three bamboos of approximately the same length are arranged in a triangle so that young trees are not damaged by the weight of snow, and the upper ends of the bamboos are tied together with ropes. A trigonal pyramid is sometimes erected around a young tree. The outside of the trifurcation is surrounded by a mat, straw or straw to form a framework for supporting the trifurcation.

[0003]

However, until three bamboos or vegetated bamboos are cut out and cut into a predetermined length, and the bamboos are collectively provided to the consumer. Since various processing work is required and setting work for binding the three ends of each young tree with a tailing rope is tied around the upper end, labor costs are increased and the cost is increased.

Therefore, when a large number of three-pronged trees are needed to protect a large number of young trees to be planted in the median strips of expressways in regions where snow is heavily damaged in winter, the total cost is not too low. is the current situation.

Moreover, since it is corroded in about 3 or 1 year, it cannot be used in the next winter after one winter.
Therefore, it has the drawback that it must be replaced with a new one. As a result, a large amount of bamboo is cut out every year to produce a trifurcation, which causes environmental problems such as destruction of nature.

Therefore, the present invention provides a three-pronged structure which is adaptable to environmental problems without using natural bamboo, has durability and can be used for a long time, and has various uses.

[0007]

A multi-purpose multi-legged structure according to the present invention comprises a plurality of pipes having diametrical insertion holes formed near one end and a shaft portion penetrating the insertion holes. Consists of a multi-joint tool formed of multiple pieces at predetermined intervals in the circumferential direction,
It is characterized in that the shaft portion is passed through the insertion hole to bundle a plurality of tubular bodies together, and the other end portions of the bundled tubular bodies are rotated so that they can be expanded and folded.

[0008]

When the other end of the pipe is expanded, each pipe can be rotated around each shaft of the connector to set a multi-leg structure having a polygonal pyramid skeleton. If you fold each body in parallel, you can put them together in a rod and make them compact.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. As shown in FIGS. 1 to 3, a three-pronged structure 1 as a first embodiment of the present invention includes three tubular bodies 2 of the same size,
It is composed of a three-pronged bolt 3 as a connecting tool for connecting one end portions of the tubular body 2 to each other. The tubular body 2 has a bolt insertion hole 4 formed near one end thereof, and the three-pronged bolt 3 is formed by fixing three bolts at, for example, 120-degree intervals and connecting the central portions thereof. The threaded portion 5 of the bolt is passed through the bolt insertion hole 4 of the tubular body 2, the washer 6 is inserted, and the nuts 7 are respectively fastened to bundle them together.

The material and length and diameter of the tubular body 2 and the length and diameter of the threaded portion 5 of the three-pronged bolt 3 are appropriately selected in consideration of the strength required for snow damage protection of young trees. decide. The material of the tube body 2 may be a resin such as a metal such as aluminum, steel, or brass. By the way, the length of the tubular body 2 is about 30 to 5
0 cm, the diameter is about 20 to 30 mm, the length of each threaded portion of the three-pronged bolt 3 is about 40 to 60 mm, and the diameter is about 50 to 60 mm. The three-pronged bolt 3 is generally made of steel, but other metal having a rust preventive effect may be used. Furthermore, the tubular body 2
May have a drawer leg that can be expanded and contracted in the axial direction.

In the three-pronged structure 1 shown in FIG. 2, when the other end of the tubular body 2 on the side facing the three-pronged bolt 3 is opened by hand, the tubular body 2 is centered on each threaded portion 5. Can be expanded to create the required triangular pyramid. That is, by adjusting the degree of tightening of the nut 7, the opening angle θ of the tube body 2 as shown in FIG. 1 can be determined to be wide or narrow, and thus the height can be changed. Three-pronged structure 1 opened and set in this way
Has three tubes 2 even if a considerable load is applied to the top.
Since the upper ends of the two are in contact with each other and are connected by the three-pronged bolt 3, the legs do not easily open and collapse.

In the three-pronged structure of the second embodiment of the present invention shown in FIG. 4, the three-pronged bolts 3 are replaced by three shaft portions 3a.
After forming the shaft portion 3a at an angular interval of 20 degrees and penetrating the bolt insertion hole 4 of the pipe body 2, the end portion of the shaft portion 3a is crushed and crushed into a round head 3b with a slight gap S, It is used to prevent the body 2 from coming off. The size of the gap S is determined by the opening angle θ of the tubular body 2.

Thus, as shown in FIG. 5, the three-pronged structure 1 for protecting from snow damage is set around the young tree 8, and the three-pronged structure 1 is covered with a frame 9 etc. as a frame. Then, if the fear of snow damage disappears, the three-pronged structure 1 is removed and stored for the next winter. In this case, as shown in FIG. 2, by folding the tube bodies 2 in parallel with each other and stacking them on top of each other, it becomes compact and the storage space can be saved.

The above-mentioned three-pronged structure 1 of the present invention is as it is,
Alternatively, the length and diameter of the tubular body 2 and the length and diameter of the threaded portion 5 of the three-pronged bolt 3 and the material thereof can be changed to be used for various purposes. That is, the tube body 2 and the three-pronged bolt 3 are changed in order to secure the strength according to the application.

For example, as shown in FIG. 6, the three-pronged structure 1 can be used as it is as a hanging fixture for a pot 10, a kettle, a pot, etc. for cooking in a camp, etc.
As shown in FIG. 7, the plate body 11 is placed on the upper portion to serve as a chair,
In addition, as shown in FIG. 8, as a fixture for the fishing rod 12,
Although not shown, a plurality of three-pronged structures 1 are erected at regular intervals and bridges are bridged between them to form a temporary fence, or a plurality of three-pronged structures 1 are intertwined with each other. It can be used for repair work, etc. as a foundation for embankment, or as a fence for damming sandbags on the collapsed part of the embankment.

Further, the three-pronged structure 1 is made slightly larger, and a metal cage 13 is placed and fixed on the upper part thereof as shown in FIG. 9 to form a torch stand, and as shown in FIG. As a clothes rack for clothes 13, bags 14, etc. in a recreation area, as shown in FIG. 11, a pair of three-pronged structure 1 is used to bridge a clothesline 15 between them to hang down a futon 16 as a clothesline. As shown in FIG. 12, the rope 17 and the scaffolding frame 18 are bridged between a pair of three-pronged structures 1 to be used as a stool, or as shown in FIG.

Further, the three-pronged structure 1 is made to be the largest, and as shown in FIG.
Alternatively, as shown in FIG. 15, the hook 21 is hung on the upper part and the chain block 22 is suspended and used as a construction turret.

It should be noted that the three-pronged structure 1 is set upside-down, that is, as shown in FIG. 16, the tubular body 2 on the side of the three-pronged bolt 3 is set up on the ground or floor and a basket 23 or the like is held for storage. Since it can be used, the method of use is not limited to these, and the application can be devised as needed.

In addition to the bolt insertion holes 4, through holes are bored in the tube body 2 at appropriate intervals in the longitudinal direction, and wires or strings are inserted through these holes and placed on the floor or the like. It can also be used as a storage case by forming a basket.

Further, the tube body 2 facing the three-pronged bolt 3
A wire or the like can be inserted into the through hole formed at the end of the three-pronged structure to prevent the legs of the three-pronged structure 1 from spreading, and the strength can be improved.

Further, as shown in FIG. 17, a plurality of sets in a state where one tube body 2 is made vertical and the other two tube bodies 2 are made horizontal to be orthogonal thereto, are connected through a joint 23. The fence or enclosure or support can then be formed as shown in FIG. The joint 23 has a core portion 24 having the same diameter as the inner diameter of the tubular body 2 at both end portions, and the core portions 24 are inserted into both end portions of the tubular body 2, respectively, and the holes 25, 2 which are matched with each other are formed.
The pins or screws 26 are inserted into 7 for connection.

Incidentally, such a three-pronged structure 1 can be made compact as shown in FIG. 2 by loosening the nuts 6 of the three-pronged bolts 3 and folding the three tubular bodies 2, and can be carried. In addition to being convenient, the storage space is small and sufficient,
It is also convenient for loading in warehouses and cars.

Further, as a third embodiment of the present invention, as shown in FIGS. 19 to 21, five tube bodies 2 and five-pronged bolts 2 are provided.
8 may be used to form the five-pronged structure 1a. As shown in FIG. 21, the five-pronged bolt 28 as a connecting member of the tubular body 2 is formed by radially arranging bolts in an annular body 30 having a predetermined diameter at predetermined intervals, and the threaded portion 5 is formed on the bolt. The bolt 7 is passed through the insertion hole of the tubular body 2 and fastened with the nut 7 as in the above-described embodiment. Further, it is also the same as the previous example that the end of the shaft portion 3 penetrating the tube body 2 may be formed into the round head 3b (see FIG. 4) without using the screw portion 5 and the nut 7.

Thus, the present invention is not limited to a three-pronged structure, but as the three-pronged bolt 3 was developed into a five-pronged bolt 29, a possible multi-pronged bolt such as a seven-pronged or eight-pronged bolt. By making, a versatile compound leg structure capable of forming a desired polygonal pyramid can be formed.

[0025]

According to the present invention described above, since it is a multi-legged structure which has a very simple structure and can endure long-term use, since it is composed of a plurality of pipes and a connecting member thereof, it is economical. It is excellent in performance and can be folded to make it compact. Therefore, it can be used as a three-pronged structure for protecting snow damage from young trees, rice porridge for cooked rice cookers, kettles, hanging supports such as pots, chairs, and fixtures for fishing rods. , Is a multi-purpose multi-purpose structure that can be used for all purposes, such as tent frameworks, construction turrets, bicycle parking stands, clothes racks, clothes racks such as futons, construction scaffolding, and chaise longue legs. The present invention has a wide application range and a large economic effect, and by utilizing this, there is an advantage that various inconveniences and the like which have been conventionally existent can be solved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a folded state of the first embodiment.

FIG. 3 is a cross-sectional view of the essential parts of the first embodiment.

FIG. 4 is a sectional view similar to FIG. 3, showing a second embodiment of the present invention.

FIG. 5 is a perspective view showing an application example.

FIG. 6 is a perspective view showing an application example.

FIG. 7 is a perspective view showing an application example.

FIG. 8 is a perspective view showing an application example.

FIG. 9 is a perspective view showing an application example.

FIG. 10 is a perspective view showing an application example.

FIG. 11 is a perspective view showing an application example.

FIG. 12 is a perspective view showing an application example.

FIG. 13 is a perspective view showing an application example.

FIG. 14 is a perspective view showing an application example.

FIG. 15 is a perspective view showing an application example.

FIG. 16 is a perspective view showing an application example.

FIG. 17 is a perspective view showing an application example.

FIG. 18 is a perspective view of an assembly main part of the application example shown in FIG. 17;

FIG. 19 is a perspective view showing a third embodiment of the present invention.

FIG. 20 is a folded perspective view of the third embodiment.

FIG. 21 is a sectional view of the third embodiment.

[Explanation of symbols]

 1 ... Three-pronged structure (multi-use compound leg structure) 1a ... Five-pronged structure (multi-use compound leg structure) 2 ... Tube body 3 ... Three-pronged bolt (connector) 3a ... Shaft part 3b ... Round head 4 … Bolt insertion hole 5… Screw part 6… Washer 7… Nut 28… Five-pronged bolt (connector)

Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display area F16M 11/38 L

Claims (4)

[Claims] 1. A plurality of pipes each having a diametrical insertion hole formed in the vicinity of one end, and a connecting member formed with a plurality of shaft portions penetrating the insertion hole at predetermined intervals in the circumferential direction. It is characterized in that the shaft portion is passed through the insertion hole to bundle a plurality of tubular bodies together, and the other end portions of the bundled tubular bodies are rotated so that they can be expanded and folded. Versatile multi-legged structure. 2. The multipurpose multi-legged structure according to claim 1, wherein the shaft portion of the connector is a bolt, and the screw portion has a nut to be screwed. 3. The multipurpose multi-legged structure according to claim 1, wherein the connector is formed by radially arranging a plurality of bolts on the annular body at regular intervals in the circumferential direction with the bolts as shaft portions. . 4. The multipurpose multi-legged structure according to claim 1, wherein the connector has a shaft portion that penetrates the tubular body and is then crushed into a round head.