JPS6041987Y2 - exercise bar stand - Google Patents

Description

[Detailed description of the invention] Kindergartens and the like have been using so-called exercise bars, which are fixed by hanging both ends of a round bar around relatively low support legs, as physical education toys.

Two of these exercise bars are arranged in parallel, and the user can hold the round bars and perform various exercises such as leg raises, push-ups, back push-ups, etc., or arrange one or more in series and calculate the average. There are also devices that perform various exercises using creativity and ingenuity, such as walking while walking, or stacking multiple units and performing the various exercises mentioned above at a high position.

Conventional products have a semicircular notch on the underside of the support leg that fits into the round bar, and this notch is fitted onto the outside of the round bar to stack multiple units, but this makes the connection extremely uncertain and during movement. It is dangerous if it comes off or shifts in the longitudinal direction, and it is difficult to accurately form a semicircular notch that can be fitted onto a round bar. In order to be able to connect them side by side, a protrusion is cut into one piece from one end of the round bar and fitted into a horizontal hole on the other end of the bar, but if the protrusion breaks, series connection becomes impossible and the protrusion The cutting process itself is difficult,
Difficult to manufacture.

This invention solves these inconveniences, namely, in the exercise bar A in which the rod 1 is fixed by hanging over the support legs 2, 2, the support legs 2 are made into a trapezoid shape and the upper oblique side is notched. Step 8'.

8', and a stacking notch 4 into which the receiving part 8 of another metal bar A can be fitted is formed from the lower side of the support leg 2. A step part is formed in the upper part of the waist notch 4. A protrusion 6 having a head 6' is inserted and fixed into the transverse hole 7, with the end of the protrusion 6 protruding, and a bolt insertion hole 11 leading to the notch 4 is inserted perpendicularly into the support leg 2. The vertical holes 3, 3 having stepped portions 3' are passed through to both ends of the rod 1, and further 1
A pair of support legs 2, 2 are erected with a gap between them - one support leg 2 has a protrusion 6, and the other support leg 2 has an opening 7 of a horizontal hole 7.
′ are facing outward, hang the rod 1 over the support legs 2 and 2, insert the bolt 10 into each vertical hole 3 and each bolt insertion hole 11, and insert the head of the bolt 10 into the stepped portion 3.
', the bolt 10 is fastened with a nut 13, and the lower end of the bolt 10 projects into the notch 4 to form a protrusion 5.

Next, to explain in detail the structure of the embodiment of this invention, the short wooden support legs 2, 2 are made into a trapezoid shape, and the upper oblique side of each trapezoid (shown by the two-dot chain line in FIG. 3) is cut out. Stepped section 8'
, 8', a receiving part 8 is formed, the upper side of the receiving part 8 is notched in a concave arc shape, and the stacking notch 4 into which the receiving part 8 of another metal bar A can be fitted is formed in an inverted U shape from the lower side. A rubber plate 9.9 for non-slip is attached to the grounding part, a horizontal hole 7 having a step 7'' is passed slightly above the notch 4, and the head 6' is inserted into this horizontal hole 7. A wooden protrusion 6 having the same shape is driven in, inserted and fixed, and the end of the protrusion 6 is made to protrude, and the notch edge 4' is inserted from the center of the concave arc 8''.
A bolt insertion hole 11 is vertically drilled through the center of the bolt insertion hole 11, and the lower end of the bolt insertion hole 11 is enlarged to form a nut receiving hole 12.A rod 1 is formed using a wooden round bar, and each end of this rod 1 is The small diameter hole 3'' is used as a bolt insertion hole, the large diameter hole 3'' is used as a bolt head locking hole and a protrusion receiving hole, and a hole is inserted at a predetermined interval. A pair of support legs 2, 2 are erected, and one support leg 2 has a protrusion 6.
The other support leg 2 stands up so that the opening 7' of the horizontal hole 7 faces outward, and both ends of the rod 1 are fitted into the concave arc parts 8'', 8''. Insert the nut 13 into each nut receiving hole 12 from below, and screw the bolt 10 from the large diameter hole 3'' to the small diameter hole 3'' and into the nut 13 through the bolt insertion hole 11. The protrusion 5 is made to protrude downward from the center of the edge 4', and a cap is externally fitted onto the protrusion at the lower end of the bolt 10.

In addition, in the case of this example, the length of the rod 1 is 59 cm,
The diameter of the rod 1 is 3 cm, and the height of the support leg 2 is 7.5 cm.

Next, to explain how to use this exercise bar, place one or more bars A on the ground, singly, in parallel, or in series. Roll money A
Insert it into the horizontal hole 7, then grasp the rod 1, raise your foot,
Perform various exercises using the bar A on a flat surface, such as push-ups, handstands, back push-ups, or walking while maintaining an average position, or place the bar A on the ground as shown in Figure 3. , while fitting the notch 4 of another bar A into the receiving part 8, and attaching the rubber plate 9,
9 on the steps 8', 8', and at the same time inserting the protrusion 5 into the vertical hole 3, the metal bars A, A are stacked to form a so-called three-dimensional structure, and the metal bars A', A' are stacked in the same manner. By arranging the boards parallel to each other and doing the various exercises mentioned above at a high position, crossing a bridge by hanging boards, playing seesaw games by placing boards on stacked metal bars, etc., various exercises can be done using creativity and ingenuity. , for playing games.

In this way, with this invention, a vertical hole is drilled in the rod body, and the protrusion protrudes from the notch formed in the support leg, so if multiple metal bars are stacked, the protrusion will be inserted into the vertical hole, and there is a risk of them coming off in the front, back, left, and right directions. (Moreover, since the notch fits externally into the receiving part that has a step formed on the support leg, the stabilizing effect is further increased and the notch comes into contact with the stepped part and the receiving part.) It is easy to manufacture because it does not come into contact with a round bar.

In addition, this invention serves both as a means for fixing the rod and the support leg and as an insertion and connection means during stacking, so parts can be omitted from the large wheel and it can be manufactured at low cost.

Furthermore, one end of the metal bars has an outward-facing protrusion and the other end has an outward-facing horizontal hole, so when the metal bars are lined up in series, the protrusion can be inserted into the horizontal hole, ensuring a secure connection. .

In particular, the protrusion is inserted and fixed into the horizontal hole of the support leg to protrude,
Moreover, since a pair of identical support legs are erected in opposite directions, it is sufficient to make one type of support leg, and if a protrusion breaks or breaks, either the support legs should be reversed, or the protrusion All you have to do is replace the protrusion itself, and unlike conventional products, if the protrusion breaks, you may lose the connection means.

[Brief explanation of the drawing]

The figures show an embodiment of this invention; Figure 1 is a perspective view;
FIG. 2 is a longitudinal cross-sectional view of the case where they are connected in series, and FIG. 3 is an enlarged partially cutaway front view of the case where they are stacked and connected in parallel. A... Gold bar, 1... Bar, 2...
...Support leg, 3...Vertical hole, 3'...Step, 4...Notch, 5, 6...Protrusion, 6
'...Head, 7...Horizontal hole, 7'...
...Opening, 7z...Step, 8...Receptacle, 8'...Step, 0...Bolt, 1... ...Bolt insertion hole, 13... Nut.

Claims (1)

[Scope of utility model registration request] Exercise bar A for fixing the bar 1 by hanging it over the support legs 2, 2
, the supporting leg 2 is made into a trapezoid shape, and the upper oblique side is cut out to form a receiving part 8 having stepped parts 8', 8', and the receiving part 8 of another metal bar A is formed from the lower side of the supporting leg 2. A stacking notch 4 that can be fitted is formed, and a stepped portion 7" is formed on the way above the notch 4.
A protrusion 6 having a head 6' is inserted and fixed into the transverse hole 7, and the end of the protrusion 6 is protruded, and a bolt insertion hole 11 leading to the notch 4 is provided perpendicularly to the support leg 2. , and a vertical hole 3 having a stepped portion 3' on the way to both ends of the rod 1,
Further, a pair of support legs 2.2 are erected at intervals, with the protrusion 6 of one support leg 2 facing outward, and the opening 7' of the horizontal hole 7 of the other support leg 2 facing outward. Stand up as shown, hang the rod 1 over the support legs 2, 2, insert the bolt 10 through each vertical hole 3 and each bolt insertion hole 11, and lock the head of the bolt 10 in the stepped part 3'. is tightened with a nut 13, and the lower end of the bolt 10 projects into the notch 4 to form a protrusion 5.