JPH0445733Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a support lifting device for a hanging ring used in gymnastics.

BACKGROUND TECHNOLOGY A conventional hanging ring will be explained with reference to FIGS. 6 to 8. A support 1, which is vertically installed and fixed on the floor F of a gymnasium, is a gate-shaped structure made of a pipe body. The support column 1 is formed on a frame, and is supported via appropriate tension cables 1a. As shown in FIG. 8, the leg structure of the support column 1 includes an embedded fitting 2 buried in the floor F, and a protrusion 4 that removably fits into the shaft hole 3 of the embedded fitting 2. A leg base 5 provided thereon is pivotably supported in a bendable manner via a bracket 7 passing through a hinge 6, and an overhang is provided in which the lower end of the support column 1 and a part of the leg base 5 respectively protrude laterally and collide with each other. The projecting parts 8 and 9 were respectively provided, and the projecting parts 8 and 9 were fastened with bolts 10 and wing nuts 11. To raise and lower pillar 1, use butterfly nut 11 for the first time.
to remove the bolt 10, free the protruding parts 8 and 9 so that the leg base 5 can rotate around the hinge 6, and insert the protruding part 4 into the shaft hole 3 of the embedded fitting 2.
to fix the footrest 5 on the floor F, and then insert the hinge 6 into the
The support legs 1 are rotated around the center to raise and lower them, and when raised, the overhangs 8 and 9 are again fastened and fixed via the bolts 10 and wing nuts 11.

Problems to be Solved by the Invention However, according to the above-mentioned conventional hanging ring, raising and lowering the support column 1 requires tightening and loosening the wing nut 11, which is complicated, troublesome, and inefficient. In addition, since the embedded metal fittings must be buried on the floor surface F, the locations where the hanging ring should be erected on the floor surface of specific areas such as gymnasiums are limited;
When using the floor surface for other exercises when the suspension ring is not used, the embedded metal fittings may become a hindrance during exercise, so this kind of metal fittings etc. should not be buried in the floor surface F. Undesirable. Also. When the embedded metal fitting 2 is fixed to the floor surface F, the leg spacing of the support 1 becomes fixed, and the elasticity of the support 1 itself becomes fixed, making it possible to adjust the appropriate elasticity according to the player. It is also difficult. In other words, the open leg dimension W of support 1 on the floor F is 2600 mm plus or minus
100mm as it is stipulated in the rules as 100mm
The leg opening dimension W of the support post 1 may be adjusted within the range of , so that the athlete can secure optimal elasticity.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention includes inserting an inner tube into the leg of the support column so that it can expand and contract, and fixing the inner tube, and connecting a hinge member to the outer end of the inner tube. A leg plate having a bracket is rotatably attached to the hinge member, and a non-slip material is provided at the bottom of the leg plate,
Further, a cylindrical cover is installed between the inner tube and the leg plate so that the rotating portion of the hinge member can be exposed.

Effects According to the above structure of the present invention, when the column is erected, the cover is moved along the inner pipe toward the column to expose the rotating part of the hinge member, and the leg plate is rotated and pushed onto the floor. When the support is fixed by attaching it to the support, etc., and the support is rotated to stand upright via the bracket and hinge member, the cover moves toward the leg plate and bridges between the inner tube and the bracket, holding the leg plate perpendicular to the support. , it can be installed upright on the floor without requiring floor-embedded metal fittings. Therefore, it is easy to change and adjust the leg opening dimensions of the support, and it has the ability to set the elasticity of the support as desired to suit the athlete, and there is no need to fix the embedded metal fittings to the floor, making it easy to adjust the width of the support. The embedded metal fittings do not pose a hindrance when the floor surface is used for competitions.

Embodiment The present invention will be described below based on an illustrated embodiment.

Figures 1 and 2 are a sectional front view and side view of main parts, Figure 3 is a partially enlarged sectional view of Figure 2, Figure 4 is an enlarged cross-sectional view of section A in Figure 2, and Figure 5 is a sectional view of part 3 of Figure 2. Fig. B is a view taken along the arrow.

In the figure, reference numeral 15 denotes an inner tube inserted into the leg portion of the column 1, and is fixed to the column 1 via a pin 16 so that it can expand and contract. As shown in FIGS. 3 and 4, the pin 16 has a rod-shaped body 18 fixed eccentrically to a disk-shaped knob 17, and this rod-shaped body 18 is longer than the diameter of the support 1 at least, and is located under the vicinity of the knob 17. A protrusion 19 is provided protruding from the side. On the other hand, a boss 21 having a keyhole-shaped through hole 20 into which the protrusion 19 can be inserted and removed from above is protruded from the leg of the support 1, and a reinforcing portion 21a facing the boss 21 in the diametrical direction is provided. It is provided protrudingly from the leg of the support column 1. A through hole 22 into which the rod-shaped body 18 is inserted is formed in the reinforcing portion 21a so as to face the through hole 20. On the other hand, through holes 23 passing through the rod-shaped body 18 of the pin 16 are bored in the inner tube at appropriate intervals in the longitudinal direction.
A fitting body 24 is fixed to the outer end of the inner tube 15, and an eye bolt-shaped hinge member 25 is screwed into the fitting body 24 in the axial direction and fixed with a lock nut 26. A bracket 27 is pivotally attached to the hinge member 25 via a shaft 25a.
is fixed to the leg plate 28. As shown in FIG. 3, a bush 25b made of a spherical body is fitted into an eye 25c of the hinge member 25 on the shaft 25a. The leg plate 28 consists of a disc-shaped body or a square plate body with a bracket 27 erected in the center thereof, and a non-slip material 29 such as rubber is stretched on the bottom surface of the leg plate 28. Reference numeral 30 denotes a cover made of a sleeve for surrounding and concealing the outer periphery of the bracket 27 and the hinge member 25, and is larger than the outer diameter of the inner tube 15 and is larger than the support column 1.
The diameter is approximately the same as that of the 200 mm diameter, and they are irremovably fitted.

Next, the operation of the above embodiment will be explained.
As shown in FIG. 1, when the support 1 is installed on the floor F, the support 1 is laid down on the floor F as shown by the phantom line, and the anti-slip material 29 of the leg plate 28 is The leg plate 28 is rotated about the shaft 25a so as to come into contact with the floor surface F. At this time, the cover 30 is
5 side so that the leg body 28 can easily rotate. Then, when the leg plate 28 is fixed to the floor F at a predetermined leg interval by holding the leg plate 28 with your foot, and the support column 1 is rotated to stand up, the cover 3
0 moves downward to cover the hinge member 25 and the bracket 27, bridge the inner tube 15 and the bracket 27, hold the leg plate 28 perpendicular to the column 1, and cover the pivot portion of the hinge member 25. to prevent foreign matter from entering. The leg plate 28 has an anti-slip material 29 at the bottom and can be fixed in close contact with the floor surface F without shifting its position, so that the column 1 stands up with the axis 25a as the center. After erecting support 1, wire 1
Stretch a and secure it so that it does not fall. After the column 1 is fixed in this way, in order to adjust the width of the legs of the column 1 to either wide or narrow, move the cover 30 upward to expose the hinge member 25, and attach the column 1 through the hinge member 25. The support column 1 is erected in the same manner as described above by folding down again to change the open leg dimension between the leg plates 28. Thus, when the open leg dimensions of the support column 1 are changed, the inclination angle of the legs of the support column 1 with respect to the floor surface naturally changes, but this change is caused by Since the bush 25b is ball-shaped and the shaft 25a is inserted into the bush 25b, the hinge member 25 is attached to the bracket 2.
7, it is absorbed by swinging back and forth and left and right. The swing angle of the hinge member 25 is preferably about 5 degrees from a state in which the vertical center line of the hinge member 25 is perpendicular to the floor surface F.

Note that the inner tube 15 is expanded, contracted, and fixed through the through holes 20,
22 and the through hole 23, insert the shaft rod 18 into the boss 21 with its protrusion 19 facing up (see the imaginary line in FIG. 3), and release it. The knob 17 rotates and the protrusion 19 is on the lower side, and unless the protrusion 19 rotates, it is stopped by the wall of the boss 21, and therefore the shaft rod 18
does not come off inadvertently, and the inner tube 15 and column 1 do not come off carelessly. When pulling out the pin 16 to expand and contract the inner tube 15, turn the knob 17 half a turn, pull the knob 17 with the protrusion 19 facing upward, and insert the shaft 18 through the through holes 20, 22, 23. Pull it out. In this way, while the height of the support column 1 can be easily adjusted by expanding and contracting the inner tube 15 and fixing it with the pin 16, it is also possible to adjust the height of the support column 1 within a certain range. Since the elastic change of the support column 1 can be set as desired within an allowable range to suit the athlete, the athlete can compete in the best conditions.

Effects of the invention According to the invention explained above, the leg plate is fixed to the floor via the anti-slip material, and the support can be raised and lowered without the need for embedded metal fittings. Adjustments can be made both wide and narrow within the allowable range, and therefore the elasticity of the support can be changed as appropriate. In addition, when setting up a hanging ring, you can insert part of the footrest into the embedded metal fittings like in the past, or
Since there is no need to tighten bolts and nuts, the work of raising and lowering the support column is made easier. Moreover, since there is no need to embed and fix the embedded metal fittings in the floor surface, there is no need to cause any trouble when using it for other exercises. The cover can bridge between the inner tube and the bracket to hold the leg plate perpendicular to the support column, and can also cover the hinge member and prevent foreign matter from entering. Furthermore, since there is no need to install embedded metal fittings on the floor, construction costs can be omitted.
Effects such as

[Brief explanation of the drawing]

Figures 1 and 2 are a cross-sectional front view and a cross-sectional side view showing an embodiment of the present invention, Figure 3 is an enlarged longitudinal sectional view of part A in Figure 2, and Figure 4 is an enlarged cross-sectional view of part B in Figure 2. figure,
Figure 5 is a view taken from arrow C in Figure 4, Figures 6 and 7 are front and side views of a conventional support column, and Figure 8 is Figure 5D.
FIG. 1...Strut, 15...Inner tube, 16...Pin, 2
3... Through hole, 24... Fitting body, 25... Hinge member, 25a... Shaft, 27... Bracket, 28...
... Leg board, 29 ... anti-slip material, 30 ... cover.

Claims (1)

[Scope of utility model registration request] An inner tube is extendably and fixably inserted into the leg of the column, a hinge member is connected to the outer end of the inner tube, a leg plate having a bracket is rotatably pivoted to the hinge member, and the leg plate A suspension ring strut holder, characterized in that a non-slip material is stretched on the bottom of the suspension ring, and a cylindrical cover is attached between the inner tube and the leg plate so that the rotating part of the hinge member can be exposed. Overturning device.