JPS6239187A - Crank - Google Patents
CrankInfo
- Publication number
- JPS6239187A JPS6239187A JP17824485A JP17824485A JPS6239187A JP S6239187 A JPS6239187 A JP S6239187A JP 17824485 A JP17824485 A JP 17824485A JP 17824485 A JP17824485 A JP 17824485A JP S6239187 A JPS6239187 A JP S6239187A
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- main body
- frame
- crank
- tip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Ladders (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、造林地で枝打梯子を立木に固定するバンドを
、緊張させる際に使用するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention is used to tension a band for fixing a pruning ladder to a standing tree in an afforestation area.
それは、立木に巻き掛けたバンドの両端を梯子に止め、
梯子へ設けたポルＩ・を回して、該ポルＩ・の先端に設
けた円弧板で立木を押し付けて、バンドを緊張させる様
にしたものであるが、本発明は、該ボルトを回すクラン
クに関するものである。It involves securing both ends of a band wrapped around a tree to a ladder.
The bolt I is provided on the ladder is rotated, and the circular arc plate provided at the tip of the pole I is pressed against a standing tree to tension the band.The present invention relates to a crank that turns the bolt. It is something.
本発明はボルトへ着脱が簡単にでき、しかも回動中に外
れる恐れがなく、且つ又、ボルトの先端とクランクの軸
孔に、両者が空回りしない様な形伏の細工を施す事を要
しないクランクを得る事であり、その構成は、本体１の
一方の片面へ、本体１の一方側に明けた長孔２と一致し
本
、且つ、目体１の中央部側が開いたＵ字型の枠３を突設
し、該枠３の円曲部の中心から、枠３の中程を通り、本
体１の任意の点へ向けて、ノックピン４を突設したもの
である。The present invention can be easily attached to and detached from the bolt, and there is no risk of it coming off during rotation, and there is no need to shape the tip of the bolt and the shaft hole of the crank so that both do not spin freely. The purpose is to obtain a crank, and its configuration is a U-shaped one with a long hole 2 opened on one side of the main body 1, and a U-shaped opening on the center side of the eye body 1. A frame 3 is provided protrudingly, and a knock pin 4 is provided protrudingly from the center of the circular portion of the frame 3, passing through the middle of the frame 3, and toward an arbitrary point on the main body 1.
更に、本体ｌの他方の、枠３と反対側の而にノーンドル
を突設したものである。Furthermore, a nodle is provided protruding from the other side of the main body l, opposite to the frame 3.
尚、図中７は本発明を吊るす環を通す孔であり、又、ボ
ルト６先端に明けたノックピン４を通す孔は、図面に図
示してない。Note that 7 in the figure is a hole through which a ring for suspending the present invention is passed, and a hole through which a dowel pin 4 formed at the tip of the bolt 6 is passed is not shown in the figure.
更にＳは樋前記ノックピン４を通す孔の向きを示す印で
ある。Furthermore, S is a mark indicating the direction of the hole through which the dowel pin 4 is passed.
本発明は以上の様な構成であり、その使用方法は、まず
ボルト６の先に付けた印８を縦に向け、次にノックピン
４をボルト６の先端に明けた孔へ上方より通して、ノッ
クピン４の根元まで差し込めばよい。The present invention has the above-mentioned structure, and the method for using it is to first point the mark 8 on the tip of the bolt 6 vertically, then insert the dowel pin 4 into the hole made at the tip of the bolt 6 from above. Just insert it all the way to the base of knock pin 4.
本発明の特徴は、ハンドル５を回動さす力が、ポルＩ−
６とハンドル５を結ぶ直線に対し直角に働くために、回
動中にボルト６は常にノックピン４の根元にある。A feature of the present invention is that the force for rotating the handle 5 is
Since the bolt 6 acts at right angles to the straight line connecting the knock pin 6 and the handle 5, the bolt 6 is always at the base of the knock pin 4 during rotation.
更に、枠３の内壁とボルト６が接しているから、ノック
ピン４に無理な力が掛っても、ノックピン４は曲ったり
折れたりしない。Furthermore, since the bolt 6 is in contact with the inner wall of the frame 3, the knock pin 4 will not bend or break even if an excessive force is applied to the knock pin 4.
又、本発明を用いれば、ボルト６の先端部へ孔を一箇所
間けるだけでよいので、加工に手間が掛からず、従って
加工費も安く、その上ボルト６へ着脱が簡単である。Furthermore, if the present invention is used, it is only necessary to make one hole at the tip of the bolt 6, so the machining process is not labor-intensive, therefore the machining cost is low, and furthermore, attachment and detachment to the bolt 6 is easy.
第一図は正面図、第二図は背面図、第三図は要部を露出
した側面断面図である。The first figure is a front view, the second figure is a rear view, and the third figure is a side cross-sectional view exposing the main parts.
Claims (1)
、且つ、本体１の中央部側が開いたＵ字型の枠３を突設
し、該枠３の円曲部の中心から、枠３の中程を通り、本
体１の任意の点へ向けて、ノックピン４を突設し、更に
、本体１の他方の、枠３と反対側の面にハンドル５を突
設したクランク。A U-shaped frame 3, which coincides with the elongated hole 2 formed in the main body 1 and is open at the center of the main body 1, is provided on one side of the main body 1, and the center of the curved part of the frame 3 is provided. A crank having a dowel pin 4 protruding from the frame 3 toward an arbitrary point on the main body 1, and a handle 5 protruding from the other side of the main body 1 opposite to the frame 3. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17824485A JPS6239187A (en) | 1985-08-12 | 1985-08-12 | Crank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17824485A JPS6239187A (en) | 1985-08-12 | 1985-08-12 | Crank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6239187A true JPS6239187A (en) | 1987-02-20 |
Family
ID=16045109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17824485A Pending JPS6239187A (en) | 1985-08-12 | 1985-08-12 | Crank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6239187A (en) |
-
1985
- 1985-08-12 JP JP17824485A patent/JPS6239187A/en active Pending
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