JPH0341470U

JPH0341470U -

Info

Publication number: JPH0341470U
Application number: JP10223989U
Authority: JP
Priority date: 1989-08-30
Filing date: 1989-08-30
Publication date: 1991-04-19

Description

[Brief explanation of drawings]

第１図は本考案実施例１の下部ポールの一部切
欠説明図、第２図は同上部ポールの一部切欠説明
図、第３図は同上、下部ポールの組合わせた状態
の説明図、第４図は第１図−線に於ける拡大
端面図、第５図は第２図−線に於ける拡大端
面図、第６図は本考案実施例２の下部ポールの一
部切欠説明図、第７図は第６図−線に於ける
拡大端面図、第８図は各種ポールについてのたわ
み量の測定結果を示すグラフ。図中、Ａ……下部ポール、Ｂ……上部ポール、
Ｃ……補強部材。 Fig. 1 is a partially cutaway explanatory view of the lower pole of Example 1 of the present invention, Fig. 2 is a partially cutaway explanatory view of the upper pole of the same, and Fig. 3 is an explanatory view of the same as above and the lower pole in a combined state. Fig. 4 is an enlarged end view along the line of Fig. 1, Fig. 5 is an enlarged end view along the line of Fig. 2, and Fig. 6 is a partially cutaway explanatory view of the lower pole of the second embodiment of the present invention. , FIG. 7 is an enlarged end view taken along the line of FIG. 6, and FIG. 8 is a graph showing the measurement results of the amount of deflection of various poles. In the figure, A...lower pole, B...upper pole,
C...Reinforcement member.

Claims

[Scope of Claim for Utility Model Registration] 1. The cross-sectional shape is such that the outer shape is a circle, the inner shape is a straight line extending over a certain length on opposite sides of the circle, and this part is thicker than the other parts. A hollow lower pole made of aluminum alloy in the shape, loosely fitted into the lower pole, the cross-sectional shape of which is similar in outer shape to the inner shape of the lower pole, but slightly smaller in size;
The inner diameter consists of a hollow upper pole made of aluminum alloy with a shape such that the opposite sides of the circle are straight over a certain length and this part is thicker than the other part, and the upper end of the upper pole has a small hole for extending the net. rollers are arranged,
A volleyball pole characterized by a temporary fixing bolt arranged at the top of the lower pole. 2. A hollow lower pole made of aluminum alloy whose cross-sectional shape is such that the outer shape is a circle, the inner shape is a straight line over a certain length on the opposite sides of the circle, and this part is thicker than the other part. It is loosely fitted into approximately the lower half of the lower pole, and its cross-sectional shape is similar to the inner shape of the lower pole, but is slightly smaller in size, and the inner shape is a circle facing opposite to each other. An aluminum alloy hollow reinforcing member whose opposite side is linear over a certain length is loosely fitted into the lower pole, and its cross-sectional shape is similar to the inner shape of the lower pole. It has a small shape, and the inner shape is a hollow upper pole made of aluminum alloy with a shape where the opposing sides of a circle are straight over a certain length and this part is thicker than the other parts. , a volleyball pole characterized in that a small roller for net extension is arranged at the upper end of the upper pole, and a temporary fixing bolt is arranged at the upper part of the lower pole.