JPS584515Y2 - Post fixation device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a pillar fixing device for fixing the pillars of physical education facilities such as horizontal bars and ball game nets to the floor surface in gymnasiums, etc., and its purpose is to insert the pillars into the foundation metal fittings. The purpose of the present invention is to provide a stanchion fixing device that can be easily and securely fixed.

Even in the gymnasiums mentioned above, the horizontal bars, which bear the weight of a person and are directly affected by the human movement, can be dangerous if they are not securely fixed.

Therefore, it is best to completely fix this support to the floor, but in places where it is used for multiple purposes, such as a gymnasium, this is not allowed and it is necessary to make it removable.

For this reason, in this type of structure, the support columns are inserted and fixed into foundation metal fittings fixed below the floor surface.

In this case, it is necessary to satisfy two contradictory requirements: ease of inserting the support into the base metal and secure retention of the support by the base metal.

The present invention has been devised in view of these points, and will be described in detail below based on the illustrated embodiments.

Reference numeral 1 designates the floor of a gymnasium or similar facility, in which through-holes 14 are bored at appropriate locations, and ring-shaped floor fittings 15 are disposed in the through-holes 14.

Normally, this floor metal fitting 15 is flush with the floor surface 1 and the through hole 1 is flush with the floor surface 1.
4, and a recess 16 for attaching the lid is provided on the top surface.

The base metal fitting 2 is disposed buried in the foundation below the through hole 14, and has a vertical cylindrical shape with a flange 12 on the outer periphery of the upper end, and a bottom collar 13 inserted into the base metal fitting 2 is inserted into the lower end opening. A bottom cover 11 having an integral part is attached.

A tapered guide surface 17 having a large diameter at the upper end is provided on the inner periphery of the upper end of the bottom collar 13.

In the figure, reference numeral 4 denotes a vibration-preventing core that stands upright in the base metal fitting 2 from the center of the bottom cover 11, and has a pointed upper end.

The inner periphery of the upper end opening of the base metal fitting 2 is chamfered so that the upper end has a larger diameter, and this upper end opening is formed into a tapered opening 3.

The flange 12 is for connecting the floor metal fitting 15 and the base metal fitting 2.

On the other hand, a support 5 for a sports facility such as a horizontal bar or a ball game net is formed of a pipe, and a steady plate 9 is fixed by welding inside the lower end slightly above the bottom surface, and a rubber cap 10 is further attached to the lower end. It is fitted.

This is installed to prevent damage to the floor surface 1 when the support column 5 is carried.

Note that the maximum diameter of this cap 10 is not larger than the outer diameter of the support column 5.

Insertion holes 8 and 18 are provided at the center of the steady plate 9 and the center of the cap 10, respectively.

The insertion hole 8 of the steady plate 9 has an inner diameter approximately equal to the outer diameter of the steady rest core 4, and the insertion hole 18 of the cap 10 has a diameter slightly larger than this.

The outer periphery of the lower part of the collar 6 fitted onto the pillar 5 has a tapered surface 7 with a small diameter at the lower end, and the angle of the tapered surface 7 is the same as the angle of the tapered opening 3 of the base metal fitting 2. There is.

Reference numeral 19 indicates a fixing screw for fixing the collar 6 to the support column 5.

In order to erect the pillar 5, the lower part of the pillar 5 may be inserted into the base metal fitting 2.

The inner diameter of the base metal fitting 2 is larger than the outer diameter of the support column 5, and the opening at the upper end of the base metal fitting 2 is a tapered opening 3 with a larger diameter at the upper end. Even if the pillars 5 and 5 are not aligned accurately, the pillar 5 is guided by the tapered opening 3 and enters the base metal fitting 2 by its own weight.

In addition, the lower end of the column 5 settles on the center of the base metal fitting 2 due to the tapered guide surface 17 of the bottom collar 13 provided on the bottom cover 11 and the pointed head of the steadying core 4, and the inner diameter is approximately equal to the outer diameter of the column 5. The bottom collar 13 and the steady-stop core 4 inserted into the insertion hole 8 of the steady-stop plate 9 support the steady-stop plate 9 so that it does not wobble.

Further, the collar 6 fitted onto the support column 5 is fixed with its tapered surface 7 in surface contact with the tapered opening 3 of the base metal fitting 2.

To remove the support column 5, simply pull it out directly upward.

As mentioned above, the present invention has the advantage that the inner diameter of the vertical cylindrical foundation metal fitting buried below the floor and communicating the upper end opening with the through hole in the floor is smaller than the outside diameter of the column inserted into the through hole and the foundation metal fitting. The large diameter makes it easy to insert the support, and since the top opening of the base metal is tapered with a large diameter at the top, the support can be inserted easily even when the support is heavy. However, it can be done even more easily, and when the insertion of the support into the foundation metal fittings has progressed further, the steadying core guides the lower end of the pillar to the center of the foundation metal fitting between the support insertion hole and the inside of the foundation metal fittings due to the inclination of the pillar. This prevents the bottom end of the support from getting caught on the wall.

In addition, in this case, when inserting the insertion hole of the steady plate into the pointed-shaped steady-stop core, once the support is inserted into the base metal fittings in an inclined state, the pointed tip of the steady-stop core is inserted into the support The shock caused by this collision may act on the hands of the person operating the support and cause discomfort, and the tip of the support or the bottom of the support may cause discomfort.
Although there is a risk of damage to the steady rest plate, attach an elastic cap to the lower end of the support column on the bottom side of the steady rest plate so that the bottom surface is exposed through the lower end opening of the support support, and then attach the elastic cap to the center of the cap. We have provided an insertion hole that communicates with the insertion hole of the plate and into which the steadying core is inserted, so even if the column is inserted into the base metal in a tilted state, the tip of the pointed steadying core will hit the elastic cap. Even though we were able to buffer the impact and use a pointed anti-shake core to guide the bottom end of the support to the center of the foundation metal, the shock was applied to the hand of the person holding the support. There is no risk of damage to the tip of the steadying core or the bottom end of the support column.

Even though the inner diameter of the base metal is larger than the support, a tapered surface with a small diameter at the lower end is provided on the outer circumference of the lower part of the collar, which is installed on the support and located slightly above the bottom of the support. When inserted, this tapered surface will come into contact with the tapered opening of the base metal fitting, so the anti-sway core will be inserted into the insertion hole of the column to prevent vibration, and the column will be securely attached to the base metal fitting. The support column can be easily inserted and removed, and can be securely fixed and supported simply by inserting it into the base metal fittings without causing wobbling.

[Brief explanation of drawings]

The attached drawings are cross-sectional views of the present invention-embodiment, in which 1 is the floor surface;
2 is a base metal fitting, 3 is a tapered opening, 4 is a steadying core, 5 is a column, 6 is a collar, 7 is a tapered surface, 8 is an insertion hole, 10'' is a cap, and 18 is an insertion hole.

Claims (1)

[Scope of utility model registration request] A vertical cylindrical foundation metal fitting with an inner diameter larger than the outside diameter of the support is buried below the floor surface, and the upper end opening of the foundation metal piece is opened in a tapered shape with a larger diameter at the upper end. At the same time, a pointed vibration isolating core is erected at the center of the bottom of the foundation metal fittings, and a vibration prevention plate is installed inside the lower end of the pipe-shaped support that is inserted into the through hole and the foundation metal fittings. In addition to providing an insertion hole in the center of the steady-stop plate with approximately the same diameter as the steady-stop core into which the steady-stop core is inserted, the bottom surface of the steady-stop plate is exposed through the lower end opening of the support within the lower end of the support. Attach an elastic cap to the cap, and provide an insertion hole in the center of the cap that communicates with the above-mentioned insertion hole and into which the vibration damping core is inserted. A column fixing device consisting of a tapered surface that faces the opening.