JP3054652U - Stand type sandbag - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a stand-type sandbag that can simplify assembly and disassembly, and that is excellent in returning to a posture that stands straight upright even when inclined. SOLUTION: A cylindrical bag main body 1 filled with a cushioning material 6 such as a sponge, a column 2 vertically erected on a base 10, and a heavy object 18 such as water or sand are housed in the center and are vertically moved up and down. An annular weight tank 3 having a through-hole 23. The weight tank 3 is passed through the column 2 from above, and is placed on the base 10. The base 10 is fitted into a concave portion 26 provided on the outer bottom surface of the weight tank 3. The bag body 1 is inserted into a column 2 projecting upward from the weight tank 3.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a stand-type sandbag used for martial arts training such as karate and boxing (in this specification, the sandbag is not limited to sand but also contains a sponge or other cushioning material. About).

[0002]

[Prior art]

 Japanese Utility Model Publication No. 5-22207 discloses a stand-type sandbag of this type, which can be used standing on the floor or the like. There is no advantage, and there is an advantage that it can be freely moved to any place and used. In the above-mentioned conventional example, as shown in FIG. 6, a cylindrical bag body 41 filled with a cushioning material 40 such as sponge is inserted into a column 42, and a base plate 43 integrally connected to the lowermost end of the column 42 is attached to the column 42. A heavy granular material 45 such as sand is stored in the inner bottom of a weight bag 44 made of synthetic resin or the like. Such a bag body 41 is stably supported in a vertical position by the base plate 43 of the support column 42 being pressed by a heavy granular material 45 such as sand, so that the bag body 41 is pushed, kicked, hit, etc. by the bag body 41. Does not fall when added.

[0003]

[Problems to be solved by the invention]

 However, in the above-described conventional example, the base plate 43 at the lowermost end of the column 42 is housed in the weight bag 44 together with the granular material 45. Therefore, when storing, first, the base plate 43 is stored in a state of being placed on the inner bottom surface of the weight bag 44, and then the granular material 45 is filled on the base plate 43, but this assembling work is enormous. troublesome.

In this storage state, the support columns 42 together with the base plate 43 are in a state where they can tilt independently against the pressing force of the weights of the granular materials 45 in the weight bag 44. Therefore, when an impact force such as pushing, kicking, or hitting is applied to the bag body 41 and the column 42 together with the bag body 41 and the weight bag 44 is inclined, the column 42 pushes the granular material 45 by the base plate 43 and pushes back the bag. The main body 41 and the weight bag 44 may be tilted more than the tilt angle. With the inclination of the column 42 in the weight bag 44, the granular material 45 may go around the lower surface of the base plate 43. When the amount of the granular material 45 wrapping around the lower surface of the base plate 43 increases with repeated use, the base plate 43 gradually floats in the granular material layer. As a result, the pressing force due to the weight of the granular material 45 is reduced, and when the bag body 41 is fallen down, there is a problem that the bag body 41 does not stand upright immediately. In such a case, once the base plate 43 and the granular material 45 together with the support columns 42 have been taken out of the weight bag 44, the base plate 43 is put back into the original storage state in which the base plate 43 is directly placed on the inner bottom surface of the weight bag 44, and again. This necessitated the filling of the granular material 45, which was troublesome.

The lower end of the opening of the bag body 41 and the upper end of the opening of the weight bag 44 are connected to each other by connecting them with a connecting cord 47. For this reason, even when the bag body 41 and the weight bag 44 are transported separately when moving and transporting, the connecting string 47 must be released one by one, which is also troublesome.

Accordingly, an object of the present invention is to provide a stand-type sandbag which can simplify the assembly and is excellent in returning to a posture that stands upright even when tilted. Another object of the present invention is to provide a stand-type sandbag that can be easily transported and stored.

[0007]

[Means for Solving the Problems]

 As shown in FIG. 2, the stand type sandbag of the present invention has a column 2 vertically set on a base 10 and a detachable plug 6 inserted into the upper portion of the column 2 and a cushioning material 6 such as sponge or rag cloth. It comprises a filled cylindrical bag body 1, and a hollow weight tank 3 interposed between the base 10 of the column 2 and the lower end surface of the bag body 1 to receive the bag body 1. The weight tank 3 has a vertically penetrating insertion hole 23 through which the column 2 is inserted at the center, and a heavy object 18 such as sand or water can be accommodated in the hollow inside thereof. The recess 26 to be fitted is formed so as to communicate with the lower end of the opening of the insertion hole 23. A first buffer 28 is interposed between the inner periphery of the insertion hole 23 of the weight tank 3 and the column 2. The base 10 includes three or more foot members 11 radially arranged from the lowermost end of the column 2. A second buffer 29 is interposed between the foot member 11 and the inner periphery of the recess 26.

[0008]

[Action]

 In the stand-type sandbag having the above configuration, when placed on a floor or the like, the weight of the heavy object 18 in the weight tank 3 causes the base 10 to be strongly pressed against the floor, and the support 2 straightens the bag body 1. To support. Since the foot member 11 serving as the base 10 is fitted into the concave portion 26 provided on the outer bottom surface of the weight tank 3, the weight of the weight tank 3 is evenly applied on the base 10, and the strut 2 and the weight tank 3 are connected to each other. There is no danger of relative rotation, and it can always be installed stably. Therefore, even when the bag body 1 is tilted together with the weight tank 3 by performing operations such as pushing, kicking, and hitting on the bag body 1 during martial arts training, the weight tank 3 immediately returns to the upright state.

If the lower portion of the column 2 and the base 10 are rigidly connected and fixed to the insertion hole 23 and the concave portion 26 of the weight tank 3, the impact force received by the bag body 1 and the column 2 during use is reduced. The weight tank 3 is added to the weight tank 3 through the lower portion of the base 2 and the base 10, and the weight tank 3 is easily damaged or damaged at an early stage. However, in the above configuration, the lower part of the column 2 and the base 10 are simply inserted into and inserted into the insertion holes 23 and the recesses 26 of the weight tank 3, so that the impact during use is directly applied to the weight tank 3. Will not join.

When the first shock absorber 28 is interposed between the inner periphery of the insertion hole 23 of the weight tank 3 and the column 2, the column 2 collides against the inner peripheral wall of the insertion hole 23 due to an impact during use. This can be absorbed and alleviated. If the second buffer body 29 is also interposed between the foot member 11 and the inner periphery of the concave portion 26, the impact applied to the bottom of the weight tank 3 from the foot member 11 during use can be reduced. At the time of moving and transporting or storing, these three members can be easily disassembled and separated by withdrawing the bag body 1 from the column 2 and extracting the column 2 from the weight tank 3.

[0011]

[Embodiment of the invention]

 1 and 2, reference numeral 1 denotes a bag body which is circular and vertically long, 2 denotes a column, and 3 denotes a hollow weight tank. As shown in FIG. 2, the bag body 1 is placed in a cylindrical bag 4 made of a flexible material such as natural leather, synthetic leather, or a synthetic resin sheet, and sponge or rag cloth (waste cloth) from the lower end 5 of the bag. ) And the like. An air vent hole 7 is provided in the center of the upper end of the bag 4, a string 8 is passed through the edge of the lower end 5 of the bag 4, and the lower end 5 is squeezed and closed with the string 8. A vertical hole 9 is formed in the center of the cushioning member 6 so that the column 2 can be inserted from below the buffer member 6, and the lower end of the opening of the vertical hole 9 faces the center of the lower end port 5.

In FIG. 5, the column 2 is made of a metal pipe or the like, and is vertically erected on the base 10 at the lower end. The base 10 is formed by integrally joining leg members 11 made of a metal square pipe or the like so as to cross each other in a cross shape, and a lower joining plate 12 made of a circular metal plate is provided on the upper surface of the center intersection of the leg members 11. Is fixed by welding or the like. On the other hand, the center of the upper joint plate 13 also made of a circular metal plate is fixed to the lower end of the column 2 at right angles by welding or the like. A plurality of triangular gusset plates 14 are welded and fixed at equal intervals at the corner where the outer peripheral surface of the lower end of the column 2 and the upper surface of the upper joint plate 13 intersect. The connection strength of both is increased. Thus, the upper joint plate 13 on the column 2 is superimposed on the lower joint plate 12 on the foot member 11 side, and several portions of the overlapped portion are fastened and fixed with bolts 15 and nuts 16 (see FIG. 3).

As shown in FIG. 3, the weight tank 3 has a hollow tank body 17 filled with heavy objects 18 such as sand or water. The tank body 17 is a plastic molded product, and includes an inner cylinder 19, an outer cylinder 20, a bottom wall 21 closing a bottom side between the inner and outer cylinders 19 and 20, and an upper wall 22 closing an upper side between the inner and outer cylinders 19 and 20. It is formed in an annular shape having a vertically penetrating insertion hole 23 surrounded by a peripheral wall of the inner cylinder 19 at the center. The insertion hole 23 is narrowed most narrowly at the upper and lower middle portions thereof, and the upper side from the relevant portion is formed in an upwardly expanding tapered hole 23a, and the lower side from the relevant portion is formed in a downwardly expanding tapered hole 23b. ing . The downwardly expanding tapered hole 23b makes it easier to insert the upper end of the column 2 into the insertion hole 23 from below, and after the insertion, the upper and lower joining plates 13 and 12 and the gusset plate 14 of the column 2 have room. Fits with a gap. The diameter of the narrowed upper and lower middle portion of the insertion hole 23 is set to be slightly larger than the diameter of the column 2.

The upper wall 22 of the tank body 17 is provided with an inlet 24 through which the heavy object 18 can be taken in and out. The inlet 24 can be closed and opened by a stopper 25. On the outer bottom surface of the bottom wall 21 of the tank body 17, as shown in FIGS. 3 and 4, a concave portion 26 into which the foot member 11 at the lower end of the column 2 is fitted is formed in a cross shape so as to communicate with the lower end opening of the insertion hole 23. It is set up. A reinforcing rib 27 is provided on the outer periphery of the outer cylinder 20.

In order to assemble the three members of the bag body 1, the strut 2 and the weight tank 3 configured as described above, first, the upper end of the strut 2 is inserted into the central through hole 23 of the weight tank 3 from below. At this time, the leg member 11 at the lower end of the column 2 is inserted so as to fit into the concave portion 26 at the bottom of the weight tank 3. Thus, the lower surface of the foot member 11 and the outer bottom surface of the bottom wall 21 of the weight tank 3 are substantially flush. Also, the upper and lower joining plates 13 and 12 and the gusset plate 14 of the column 2 are accommodated in the tapered hole 23 b of the insertion hole 23. A first buffer 28 such as a sponge is interposed between the support 2 and the inner periphery of the tapered hole 23a. At this time, since the tapered hole 23a is formed in an upwardly expanding shape, it is easy to pack the first buffer 28 into the tapered hole 23a from above after passing through the column 2, and after the packing, the first buffer 28 is filled. It is difficult to slip down. A second buffer 29 such as a sponge is interposed between the foot member 11 and the inner periphery of the concave portion 26 as necessary. Specifically, the second buffer 29 is wound around the foot member 11.

Next, a heavy object 18 such as sand is put into the weight tank 3 through an inlet 24. Finally, by inserting the vertical hole 9 of the bag body 1 into the column 2 projecting upward from the upper wall 22 of the weight tank 3, the bag body 1 is attached to the upper wall of the weight tank 3 as shown in FIGS. It is received and supported in a state of being placed on the vertical position on the top 22. If necessary, a third buffer 30 such as a sponge is interposed between the column 2 and the inner periphery of the vertical hole 9.

When the stand-type sandbag assembled as described above is placed on the floor or the like, the weight member 18 in the weight tank 3 causes the foot member 11 as the base 10 to be strongly pressed against the floor. The support 2 supports the bag body 1 straight. Therefore, when the bag body 1 is tilted together with the weight tank 3 by performing operations such as pushing, kicking, and hitting the bag body 1 during martial arts training, the bag body 1 immediately returns to its straight position due to its weight.

The lower portion of the column 2 and the foot member 11 are simply inserted and fitted into the insertion hole 23 and the concave portion 26 of the weight tank 3 without being rigidly connected and fixed. Therefore, it is possible to prevent a strong impact from being transmitted to the inner cylinder 19 and the bottom wall 21 of the weight tank 3 from the lower part of the column 2 and the side of the foot member 11 during use. A first buffer 28 is interposed between the column 2 and the inner periphery of the tapered hole 23a, and a second buffer 29 is similarly interposed between the foot member 11 and the inner periphery of the recess 26. Therefore, it is possible to prevent the strut 2 from colliding against the inner cylinder 19 due to an impact during use and being damaged, and the base 10 from colliding against the bottom wall 21 of the weight tank 3 and being damaged.

At the time of moving and transporting or storing and storing, the bag body 1 is pulled out from the column 2, and the column 2 is pulled out from the insertion hole 23 of the weight tank 3, so that these three members can be easily disassembled and separated. It can be packed in a compact state, which is convenient for mobile transportation and storage. Also, by taking out the heavy object 18 from the weight tank 3 through the inlet 24, the weight becomes lighter and it becomes easier to carry.

Although the entire contents of the illustrated example are as described above, three foot members 11 of the base 10 can also be projected radially in the horizontal direction from the lower end of the column 2. The foot member 11 may be integrally welded to the lower end of the column 2 by welding without using the upper and lower joining plates 13 and 12.

[0021]

[Effect of the invention]

 According to the present invention, the insertion hole 23 is provided in the center of the weight tank 3 in a vertically penetrating manner so that the lower portion of the column 2 can be inserted into the insertion hole 23, so that both can be easily assembled. . At this time, since the foot member 11 which is the base 10 of the column 2 is fitted into the concave portion 26 provided on the bottom of the weight tank 3, the weight of the weight tank 3 is always uniformly applied on the base 10, and 2 and the weight tank 3 can be installed stably without fear of relative rotation, and the entire body is straightened immediately even if it is tilted by any action such as pushing, kicking or hitting from any direction. It is also suitable for continuous use such as striking, kicking, and poking.

The lower portion of the column 2 and the base 10 are simply inserted and fitted into the insertion hole 23 and the concave portion 26 of the weight tank 3 without being rigidly connected and fixed. The lower part of the column 2 and the base 10 can be prevented from being damaged or damaged early by the impact on the weight tank 3 by the impact, and the durability is excellent.

Further, by extracting the bag body 1 from the column 2 and extracting the column 2 from the weight tank 3, these three members can be easily disassembled, which is convenient for moving, transporting, and storing.

[Brief description of the drawings]

FIG. 1 is a front view of the entire appearance.

FIG. 2 is an overall longitudinal sectional front view.

FIG. 3 is an enlarged vertical sectional front view of a main part in FIG. 2;

FIG. 4 is a bottom view of the weight tank.

FIG. 5 is an exploded perspective view showing a lower portion of a column and a weight tank.

FIG. 6 is a cutaway perspective view showing the internal structure of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bag main body 2 Prop 3 Weight tank 6 Buffer material 10 Base 18 Heavy material 26 Depression 28 First buffer

Claims (3)

[Utility model registration claims] 1. A column 2 vertically erected on a base 10.
The bag body 1 is inserted into the upper part of the support column 2 and is filled with the cushioning material 6 therein, and the hollow weight tank 3 in which the heavy object 18 such as sand is accommodated. The recess 2 has a vertically penetrating insertion hole 23 through which the column 2 is inserted, and a recess 2 that allows the base 10 to be fitted into the outer bottom surface of the weight tank 3.
6. A stand-type sandbag, wherein 6 is recessed so as to communicate with the lower end of the opening of the insertion hole 23. 2. A column 2 that stands vertically on a base 10.
A cylindrical bag body 1 removably inserted into the upper part of the column 2 and filled with the cushioning material 6 therein; and a bag interposed between the base 10 of the column 2 and the lower end surface of the bag body 1. A hollow weight tank 3 receives and supports the main body 1, and a base 10 is disposed radially from the lower end of the support 2.
The weight tank 3 has a vertically penetrating insertion hole 23 through which the column 2 is inserted in the center, and a heavy object 18 such as sand can be accommodated in the hollow interior of the weight tank 3. The recess 2 into which the foot member 11 fits is formed on the outer bottom surface of the weight tank 3.
6 is formed so as to communicate with the lower end of the opening of the insertion hole 23, and the first column is provided between the inner periphery of the insertion hole 23 of the weight tank 3 and the column 2.
A stand-type sandbag, wherein a buffer 28 is interposed. 3. Between the foot member 11 and the inner periphery of the recess 26,
The stand-type sandbag according to claim 2, wherein a second buffer body (29) is interposed.