JPH04254Y2 - - Google Patents
Info
- Publication number
- JPH04254Y2 JPH04254Y2 JP16297587U JP16297587U JPH04254Y2 JP H04254 Y2 JPH04254 Y2 JP H04254Y2 JP 16297587 U JP16297587 U JP 16297587U JP 16297587 U JP16297587 U JP 16297587U JP H04254 Y2 JPH04254 Y2 JP H04254Y2
- Authority
- JP
- Japan
- Prior art keywords
- groove
- diameter pipe
- elastic ball
- peripheral surface
- inscribed
- 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.)
- Expired
Links
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004575 stone Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は光波測距用ポールもしくはその他の伸
縮ポールに関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a pole for light wave ranging or other telescoping poles.
従来、この種の伸縮ポールとして締付ナツトに
よるコレツトチヤツクの構造のものは公知であつ
た。
Conventionally, this type of telescopic pole has been known to have a collet chuck structure using a tightening nut.
上記した従来のものは伸縮の際には締付ナツト
を数回捻回してコレツトチヤツクを弛める操作と
反対方向に数回捻回して同コレツトチヤツクを締
める操作が必要であつて不便であつた。
The above-mentioned conventional device is inconvenient because it requires twisting the tightening nut several times to loosen the collet chuck and twisting it in the opposite direction several times to tighten the collet chuck when expanding or contracting.
本考案は上記のような不便さ等の欠陥を解消し
ようとするものであつて、このために
細径側パイプ２の内端部の外周に設けられた太
径側パイプ３の内周面に内接するスライド部分４
と、スライド部分に設けられた周方向に長い溝５
と、同溝５内に外周面が太径側パイプ３の内周面
および溝５の底面に弱く内接した状態として装入
された弾性体ボール８と、溝５の両端個所１０，
１０′の底面に設けられた同個所の底面と太径側
パイプ３の内周面との間隔を弾性体ボール８の径
より狭くする曲線のカム面１１，１１′と、溝５
の中央個所の底面１２とカム面１１，１１′との
間の個所に設けられた弾性体ボール８の位置ズレ
阻止用山型突部１２，１２′とを備えたことを特
徴とする伸縮ポールを提供するものである。
The present invention is intended to eliminate the above-mentioned inconvenience and other defects, and for this purpose, the inner circumferential surface of the large diameter pipe 3 provided on the outer periphery of the inner end of the small diameter pipe 2. Inscribed slide part 4
and a circumferentially long groove 5 provided in the sliding part.
, an elastic ball 8 inserted into the groove 5 with its outer peripheral surface weakly inscribed in the inner peripheral surface of the large-diameter pipe 3 and the bottom surface of the groove 5, and both ends 10 of the groove 5.
curved cam surfaces 11, 11' provided on the bottom surface of the groove 5 to make the distance between the bottom surface of the same point and the inner circumferential surface of the large diameter pipe 3 narrower than the diameter of the elastic ball 8;
A telescopic pole characterized in that it is provided with chevron-shaped protrusions 12, 12' for preventing displacement of the elastic ball 8, which are provided between the bottom surface 12 and the cam surfaces 11, 11' at the center of the pole. It provides:
図に示す実施例は望遠鏡の筒のように伸縮自在
でたたみ込み型に作られたテレスコーピング・ポ
ール１を形成し、このポール１に於て細径側パイ
プ２の内端部の外周に太径側パイプ３の内周面に
内接してスライドする部分４を、またこの部分４
に周方向に長い溝５を硬質合成樹脂製端部材６お
よび蓋部材７を介して夫々設けると共に当該長い
溝５内にゴム、合成樹脂等製の弾性体ボール８を
同弾性体ボール８の外周面が太径側パイプ３の内
周面および長い溝５の底面９に内接した状態とし
て装入し、また長い溝５の両端個所１０，１０′
の底面を同両端個所の底面と太径側パイプ３の内
周面との間隔が弾性体ボール８の径より狭くなる
曲線のカム面１１，１１′とすると共に長い溝５
の中央個所の底面１２とカム面１１，１１′との
間の個所を弾性体ボール８の位置ズレ阻止用山型
突部１３，１３′としたものである。
The embodiment shown in the figure forms a telescoping pole 1 that is telescoping and foldable like a telescope tube. The portion 4 that is inscribed in and slides on the inner circumferential surface of the radial pipe 3 is also
A long groove 5 is provided in the circumferential direction through an end member 6 made of hard synthetic resin and a lid member 7, and an elastic ball 8 made of rubber, synthetic resin, etc. is placed in the long groove 5 on the outer periphery of the elastic ball 8. The surface is inscribed in the inner peripheral surface of the large-diameter pipe 3 and the bottom surface 9 of the long groove 5, and the ends 10, 10' of the long groove 5 are charged.
The bottom surface of the curved cam surface 11, 11' is formed such that the distance between the bottom surface at both ends and the inner circumferential surface of the larger diameter pipe 3 is narrower than the diameter of the elastic ball 8, and the long groove 5 is formed.
The portions between the bottom surface 12 and the cam surfaces 11, 11' at the center thereof are chevron-shaped protrusions 13, 13' for preventing displacement of the elastic ball 8.
尚、図中１４は石突、１５は寸法目盛、１６は
プリズムホルダー、１７はプリズムを示す。 In addition, in the figure, 14 is a stone tip, 15 is a dimension scale, 16 is a prism holder, and 17 is a prism.
本考案は上記のような構成であるので、細径側
パイプ２を左右のどちらかに回転して弾性体ボー
ル８を太径側パイプ３の外周面とカム面１１，１
１′との間に入れば弾性体ボール８の復元力（反
発力）より生ずる摩擦力によつて細径側パイプ２
はその位置に固定され、また細径側パイプ２をも
とに回転させれば弾性体ボール８が溝５の中央個
所に戻り細径側パイプの伸縮方向への移動は自在
となるものである。
Since the present invention has the above-described configuration, the small-diameter pipe 2 is rotated to the left or right, and the elastic ball 8 is connected to the outer peripheral surface of the large-diameter pipe 3 and the cam surfaces 11, 1.
1', the friction force generated by the restoring force (repulsion force) of the elastic ball 8 will cause the small diameter pipe 2 to
is fixed at that position, and when the small diameter pipe 2 is rotated, the elastic ball 8 returns to the center of the groove 5, allowing the small diameter pipe to move freely in the direction of expansion and contraction. .
本考案は細径側パイプ２の内端部の外周に設け
られた太径側パイプ３の内周面に内接するスライ
ド部分４と、スライド部分に設けられた周方向に
長い溝５と、同溝５内に外周面が太径側パイプ３
の内周面および溝５の底面に弱く内接した状態と
して装入された弾性体ボール８と、溝５の両端個
所１０，１０′の底面に設けられた同個所の底面
と太径側パイプ３の内周面との間隔を弾性体ボー
ル８の径より狭くする曲線のカム面１１，１１′
と、溝５の中央個所の底面１２とカム面１１，１
１′との間の個所に設けられた弾性体ボール８の
位置ズレ阻止用山型突部１２，１２′とを備えた
ことを特徴とするので、細径側パイプ２に左また
は右に僅かに捻じる操作および戻し操作を加える
極めて簡単な操作で楽に伸縮することができる利
便の効果があり、また極めて簡単な機構であつて
組立が容易であり且つ故障が少ない等の利点があ
り、更に弾性体ボール８の復元力（反発力）によ
る固定機能が少ない回転であるにも拘ず比較的確
実である等の優れた効果を有するものである。
The present invention includes a slide portion 4 provided on the outer periphery of the inner end of the small-diameter pipe 2 and inscribed in the inner peripheral surface of the large-diameter pipe 3, and a circumferentially long groove 5 provided in the slide portion. Inside the groove 5, there is a pipe 3 whose outer peripheral surface is on the larger diameter side.
An elastic ball 8 is inserted into the inner peripheral surface of the groove 5 and the bottom surface of the groove 5 in a weakly inscribed state, and the bottom surface of the same place provided on the bottom surface of both end portions 10 and 10' of the groove 5 and the larger diameter pipe. curved cam surfaces 11, 11' whose distance from the inner circumferential surface of 3 is narrower than the diameter of the elastic ball 8;
and the bottom surface 12 at the center of the groove 5 and the cam surface 11,1
1' for preventing the elastic ball 8 from shifting, so that the small-diameter side pipe 2 is slightly tilted to the left or right. It has the advantage of being able to expand and contract easily with an extremely simple operation of twisting and returning, and has the advantage of being an extremely simple mechanism, easy to assemble, and less likely to break down. Although the fixing function by the restoring force (repulsion force) of the elastic ball 8 is a small rotation, it has excellent effects such as being relatively reliable.
図は本考案伸縮ポールの実施例を示すものであ
つて、第１図は全体の斜視図、第２図は第１図Ａ
−Ａ線に沿う断面図、第３図は第１図Ｂ−Ｂ線に
沿う断面図、第４図は弛めた状態を示す第１図Ｂ
−Ｂ線に相当する個所の断面図である。
１……テレスコーピング・ポール、２……細径
側パイプ、３……太径側パイプ、４……スライド
部分、５……溝、６……端部材、７……蓋部材、
８……ボール、９……底面、１０，１０′……両
端個所、１１，１１′……カム面、１２……底面、
１３，１３′……突部、１４……石突、１５……
寸法目盛、１６……プリズムホルダー、１７……
プリズム。
The figures show an embodiment of the telescopic pole of the present invention, in which Fig. 1 is an overall perspective view, and Fig. 2 is Fig. 1A.
- A sectional view taken along the A line, Figure 3 is a sectional view taken along the B-B line in Figure 1, and Figure 4 is a sectional view taken along the B-B line in Figure 1.
- It is a sectional view of the part corresponding to the B line. 1... Telescoping pole, 2... Small diameter side pipe, 3... Large diameter side pipe, 4... Slide portion, 5... Groove, 6... End member, 7... Lid member,
8... Ball, 9... Bottom surface, 10, 10'... Both ends, 11, 11'... Cam surface, 12... Bottom surface,
13, 13'... protrusion, 14... stone protrusion, 15...
Dimension scale, 16... Prism holder, 17...
prism.
Claims (1)
径側パイプ３の内周面に内接するスライド部分４
と、スライド部分に設けられた周方向に長い溝５
と、同溝５内に外周面が太径側パイプ３の内周面
および溝５の底面に弱く内接した状態として装入
された弾性体ボール８と、溝５の両端個所１０，
１０′の底面に設けられた同個所の底面と太径側
パイプ３の内周面との間隔を弾性体ボール８の径
より狭くする曲線のカム面１１，１１′と、溝５
の中央個所の底面１２とカム面１１，１１′との
間の個所に設けられた弾性体ボール８の位置ズレ
阻止用山型突部１２，１２′とを備えたことを特
徴とする伸縮ポール。 A slide portion 4 inscribed in the inner peripheral surface of the large-diameter pipe 3 provided on the outer periphery of the inner end of the small-diameter pipe 2
and a circumferentially long groove 5 provided in the sliding part.
, an elastic ball 8 inserted into the groove 5 with its outer peripheral surface weakly inscribed in the inner peripheral surface of the large-diameter pipe 3 and the bottom surface of the groove 5, and both ends 10 of the groove 5.
curved cam surfaces 11, 11' provided on the bottom surface of the groove 5 to make the distance between the bottom surface of the same point and the inner circumferential surface of the large diameter pipe 3 narrower than the diameter of the elastic ball 8;
A telescopic pole characterized in that it is provided with chevron-shaped protrusions 12, 12' for preventing displacement of the elastic ball 8, which are provided between the bottom surface 12 and the cam surfaces 11, 11' at the center of the pole. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16297587U JPH04254Y2 (en) | 1987-10-24 | 1987-10-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16297587U JPH04254Y2 (en) | 1987-10-24 | 1987-10-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0167518U JPH0167518U (en) | 1989-05-01 |
| JPH04254Y2 true JPH04254Y2 (en) | 1992-01-07 |
Family
ID=31447286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16297587U Expired JPH04254Y2 (en) | 1987-10-24 | 1987-10-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04254Y2 (en) |
-
1987
- 1987-10-24 JP JP16297587U patent/JPH04254Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0167518U (en) | 1989-05-01 |
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