JPH071596Y2 - Stretcher - Google Patents
StretcherInfo
- Publication number
- JPH071596Y2 JPH071596Y2 JP11748389U JP11748389U JPH071596Y2 JP H071596 Y2 JPH071596 Y2 JP H071596Y2 JP 11748389 U JP11748389 U JP 11748389U JP 11748389 U JP11748389 U JP 11748389U JP H071596 Y2 JPH071596 Y2 JP H071596Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- shaped body
- stage
- cord
- expander
- 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 - Lifetime
Links
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Supports For Pipes And Cables (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は例えば三脚装置に適用して好適な伸縮器に関
し、特にその抜け止め構造に係るものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an expander suitable for application to, for example, a tripod device, and particularly to a retaining structure thereof.
本考案は複数段のパイプ状体により成る伸縮調整自在な
伸縮器において、各段のパイプ状体の抜け止めとしてパ
イプ状体とパイプ状体をその内空部において紐材で連結
し、さらにこの紐材に硬い部分と軟かい部分を交互に形
成することにより、簡単な構成でパイプ状体の抜け止め
が図られ、かつパイプ状体の伸縮スライド時に紐材がパ
イプ状体とパイプ状体の隙間に食い込まないようにした
ものである。The present invention relates to an expander / contractor having a plurality of stages of pipe-shaped bodies that is adjustable in expansion and contraction. In order to prevent the pipe-shaped bodies of each stage from coming off, the pipe-shaped bodies and the pipe-shaped bodies are connected by a string material in the inner space, and By alternately forming hard and soft portions on the cord, it is possible to prevent the pipe-shaped body from coming off with a simple structure, and when the pipe-shaped body expands and contracts, the cord can be separated from the pipe-shaped body and the pipe-shaped body. It is designed so as not to cut into the gap.
例えばカメラ用三脚装置においては、その脚部材として
自由な長さに調整可能な伸縮器(脚)が用いられてい
る。For example, in a tripod device for a camera, an extender (leg) that can be adjusted to a desired length is used as the leg member.
即ちこの伸縮器は、終段に向かって順次小径となる複数
段のパイプ状体を入れ子状に嵌挿して成り、不使用時に
は各段のパイプ状体を収納して収縮状態とし、使用時に
は各段のパイプ状体を引き出して伸長状態とする如く構
成されている。That is, this expander is formed by inserting a plurality of stages of pipe-shaped bodies, which have smaller diameters toward the final stage, in a nested manner. When not in use, the pipe-shaped bodies of each stage are stored in a contracted state. It is configured so that the pipe-shaped body of the step is pulled out to be in an expanded state.
ところで、この種の伸縮器においては、各段のパイプ状
体が伸長状態において脱落しないように隣接するパイプ
状体同士の抜け止めを図る必要がある。By the way, in this type of expander, it is necessary to prevent the adjacent pipe-shaped bodies from coming off from each other so that the pipe-shaped bodies of each stage do not fall off in the expanded state.
従来の伸縮器におけるパイプ状体の抜け止め構造は、第
3図に示す如く構成されている。The structure for preventing the pipe-shaped body from coming off in the conventional expander is configured as shown in FIG.
図において(1)は伸縮器で、この伸縮器(1)は複数
段即ち本例ではA,Bの2段のパイプ状体(2)により成
る(尚、この例では2段のパイプ状体のみを図示してあ
るが、実際にはこれより数段多いパイプ状体で構成され
る)。In the figure, (1) is an expander, and this expander (1) is composed of a plurality of stages, that is, a two-stage pipe-shaped body (2) of A and B (in this example, a two-stage pipe-shaped body). Although it is only shown in the figure, it is actually composed of a pipe-like body with several stages more than this).
これらのパイプ状体(2)は、例えば金属管により成
り、1段目Aより2段目Bが小径に形成されており、1
段目Aのパイプ状体(2)の内空部に2段目Bのパイプ
状体(2)を入れ子状に嵌挿してある。These pipe-like bodies (2) are made of, for example, a metal pipe, and the second stage B is formed to have a smaller diameter than the first stage A.
The pipe-shaped body (2) of the second stage B is nested and inserted in the inner space of the pipe-shaped body (2) of the stage A.
そして、2段目Bのパイプ状体(2)の上端部にはその
周面に突出する凸部材(3)が固定され、一方1段目A
のパイプ状体(2)の下端部には、先端が凸部材(3)
の下端面に対応するように折曲される係止部材(4)が
固定されており、2段目Bのパイプ状体(2)を1段目
Aのパイプ状体(2)から一杯に引き出した状態では凸
部材(3)が係止部材(4)に当接係止されることによ
り、2段目Bのパイプ状体(2)の抜け止めが図られる
構造と成されている。Then, a convex member (3) protruding to the peripheral surface is fixed to the upper end of the pipe-shaped body (2) of the second stage B, while the first stage A
At the lower end of the pipe-shaped body (2), the tip is a convex member (3).
The locking member (4) that is bent so as to correspond to the lower end surface of the first stage A is fixed, and the pipe-shaped body (2) of the second stage B is completely filled with the pipe-shaped body (2) of the first stage A. In the pulled out state, the convex member (3) is brought into contact with and locked by the locking member (4) to prevent the pipe-shaped body (2) of the second stage B from coming off.
しかしながら、このような従来の伸縮器における抜け止
め構造によれば、パイプ状体(2)とパイプ状体(2)
の間に、凸部材(3)と係止部材(4)とが当接される
だけの隙間を確保する必要があるため、1段目Aのパイ
プ状体(2)に対し2段目Bのパイプ状体(2)の径を
かなり小さく形成しなければならない。従って実際に多
数段のパイプ状体で構成する場合、隣接するパイプ状体
の径の差が大きいためパイプ状体の段数に限界があり、
また段数の多いものを製作したとしても始段(1段目)
のパイプ状体の径が非常に大きなものとなり、実用には
とても向かない。However, according to such a conventional retaining structure in the expander, the pipe-shaped body (2) and the pipe-shaped body (2) are provided.
Since it is necessary to secure a gap between the convex member (3) and the locking member (4) between the two, the second step B with respect to the first step A pipe-shaped body (2). The diameter of the pipe-shaped body (2) must be made considerably small. Therefore, when the pipe-shaped body is actually composed of a large number of stages, there is a limit to the number of stages of the pipe-shaped body due to the large difference in diameter between adjacent pipe-shaped bodies.
In addition, even if a product with a large number of stages is manufactured, the first stage (first stage)
The diameter of the pipe is very large and is not suitable for practical use.
本考案は斯かる点に鑑みてなされたもので、隣接するパ
イプ状体の径の差を小さくすることができる抜け止め構
造を提供することを目的とする。The present invention has been made in view of the above point, and an object thereof is to provide a retaining structure capable of reducing a difference in diameter between adjacent pipe-shaped bodies.
上述の目的を達成するために本考案は終段に向かって順
次小径に形成される複数段のパイプ状体を入れ子状に嵌
挿して成る伸縮器において、パイプ状体とパイプ状体を
その内空部にて紐材で連結して抜け止めとし、かつこの
紐材に、硬質部と軟質部を交互に形成してなるものであ
る。In order to achieve the above-mentioned object, the present invention is an expander in which a plurality of stages of pipe-shaped bodies sequentially formed toward the final stage are inserted in a nested manner, and the pipe-shaped body and the pipe-shaped body are included in the expander. The empty portion is connected with a cord material to prevent the cord from coming off, and the hard material and the soft portion are alternately formed on the cord material.
このように抜け止め部材として紐材を用いたことによ
り、パイプ状体とパイプ状体の間に大きな隙間を確保す
る必要がないので、隣接するパイプ状体の径の差を小さ
くすることができ、また紐材に硬質部と軟質部を交互に
形成したことにより、パイプ状体の収縮スライド時に紐
材は軟質部において折れ曲がるように撓み、このためパ
イプ状体とパイプ状体の隙間に紐材が食いこむおそれは
ないので、パイプ状体は常に円滑に伸縮スライドされ
る。By using the string material as the retaining member in this manner, it is not necessary to secure a large gap between the pipe-shaped bodies, so that the difference in diameter between the adjacent pipe-shaped bodies can be reduced. Also, by alternately forming the hard part and the soft part in the cord, the cord bends in the soft part when the pipe-shaped body contracts and slides, so that the cord-shaped material is inserted in the gap between the pipe-shaped body and the pipe-shaped body. Since there is no risk of biting, the pipe-shaped body is always smoothly slid.
以下、第1図及び第2図を参照しながら本考案の実施例
を説明する。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
本考案においては、パイプ状体(2)の抜け止め部材と
して紐材(5)を用いてある。In the present invention, the string material (5) is used as the retaining member for the pipe-shaped body (2).
即ち、第1図に示す如く、各段のパイプ状体(2)の上
端開口部に固定蓋体(6)を嵌め込んで固定し、この各
段の固定蓋体(6)間においてパイプ状体(2)の内空
部に紐材(5)を配し、その一端を1段目Aのパイプ状
体(2)の固定蓋体(6)に、他端を2段目Bのパイプ
状体(2)の固定蓋体(6)に夫々固着してあり、2段
目Bのパイプ状体(2)を1段目Aのパイプ状体(2)
から一杯に引き出した状態ではこの紐材(5)が緊張す
ることにより2段目Bのパイプ状体(2)の抜け止めが
図られる。That is, as shown in FIG. 1, the fixed lid body (6) is fitted and fixed in the upper end opening of the pipe-shaped body (2) of each stage, and the pipe-shaped body is provided between the fixed lid bodies (6) of each stage. The cord (5) is arranged in the inner space of the body (2), one end of which is the fixed lid (6) of the pipe-shaped body (2) of the first stage A, and the other end is the pipe of the second stage B. The pipe-shaped body (2) of the second stage B is fixed to the fixed lid body (6) of the body (2), and the pipe-shaped body (2) of the first stage A is
When the cord material (5) is fully pulled out from this, tension is exerted on the cord material (5) to prevent the pipe-shaped body (2) of the second stage B from coming off.
そしてさらにこの紐材(5)には、パイプ状体(2)の
伸縮スライドが円滑に行なわれるための独特の工夫が施
されている。Further, the cord material (5) is provided with a unique device for smoothly expanding and contracting the pipe-shaped body (2).
即ち、この紐材として普通の軟かい紐(綿紐等)を使用
すると、2段目Bのパイプ状体(2)を1段目Aのパイ
プ状体(2)に引き込ませるように伸縮スライドさせた
際に、紐材が無秩序に撓んでその一部がパイプ状体
(2)とパイプ状体(2)の隙間に食い込む状態となる
ことがあり、このためパイプ状体(2)の伸縮スライド
が円滑に行えなくなるおそれがある。That is, when an ordinary soft string (cotton string, etc.) is used as this string material, the telescopic slide is made so that the pipe-shaped body (2) of the second stage B can be drawn into the pipe-shaped body (2) of the first stage A. When this is done, the string material may randomly bend and a part of it may enter into the gap between the pipe-shaped body (2) and the pipe-shaped body (2). Therefore, the expansion and contraction of the pipe-shaped body (2). It may not be possible to slide smoothly.
そこで本例においては、この紐材(5)に硬い部分即ち
硬質部(5a)と、軟かい部分即ち軟質部(5b)とを夫々
所定長さで交互に形成してある。このように硬質部(5
a)と軟質部(5b)を有する紐材(5)は、普通の軟か
い紐(綿紐等)を用意し、その硬くしたい部分に、例え
ば接着剤を含浸させてこれを固化させたり、あるいはプ
ラスチック等を溶着したりする方法によって簡単に製作
できる。Therefore, in this example, a hard portion, that is, a hard portion (5a) and a soft portion, that is, a soft portion (5b) are alternately formed on the cord (5) with a predetermined length. In this way, the hard part (5
For the cord material (5) having a) and the soft part (5b), prepare an ordinary soft cord (cotton cord or the like), and impregnate the portion to be hardened with, for example, an adhesive to solidify it. Alternatively, it can be easily manufactured by welding plastic or the like.
そしてこのように紐材(5)に硬質部(5a)と軟質部
(5b)とを交互に設けたことにより、2段目Bのパイプ
状体(2)を1段目Aのパイプ状体(2)に引き込ませ
るように収縮スライドさせた際には、第2図に示す如く
紐材(5)は軟質部(5b)において九十九折り状に折れ
曲がって撓む状態となり、このためパイプ状体(2)と
パイプ状体(2)の隙間に紐材(5)が食い込む状態と
なることはなく、従ってパイプ状体(2)を円滑にスラ
イドさせることができる。By thus alternately providing the hard portion (5a) and the soft portion (5b) on the cord material (5), the pipe-shaped body (2) of the second stage B is changed to the pipe-shaped body of the first stage A. When it is contracted and slid so as to be pulled into (2), the cord (5) bends and bends in a 99-fold shape in the soft part (5b) as shown in FIG. The string material (5) does not enter the gap between the pipe-shaped body (2) and the pipe-shaped body (2), and therefore the pipe-shaped body (2) can be slid smoothly.
以上の如く本例の伸縮器においては、1段目Aのパイプ
状体(2)と2段目Bのパイプ状体(2)とをその内空
部にて紐材(5)で連結して抜け止めとしたことによ
り、パイプ状体(2)の径の差を小さくすることができ
る。即ち、パイプ状体(2)の抜け止めとして紐材
(5)を用いたことにより、従来の如くパイプ状体
(2)とパイプ状体(2)の間に抜け止め部材のための
所定の隙間を確保する必要がないので、パイプ状体
(2)とパイプ状体(2)の隙間はスライドに必要な最
小限の隙間でよく、従って隣接するパイプ状体の径の差
を極力小さくすることができる。このため、パイプ状体
の段数が多くなっても始段(1段目)のパイプ状体の径
はそれほど大きくならず、従って全体としてコンパクト
であり、即ちいわゆる軽薄短小化を図ることができるも
のである。As described above, in the expander of this example, the pipe-shaped body (2) of the first stage A and the pipe-shaped body (2) of the second stage B are connected by the cord material (5) in the inner space. By using this as a retaining member, the difference in diameter of the pipe-shaped body (2) can be reduced. That is, since the string material (5) is used as a retaining member for the pipe-shaped body (2), a predetermined retaining member for the retaining member is provided between the pipe-shaped body (2) and the pipe-shaped body (2). Since it is not necessary to secure a gap, the gap between the pipe-shaped bodies (2) and the pipe-shaped body (2) may be a minimum gap required for sliding, and therefore the difference in diameter between adjacent pipe-shaped bodies is minimized. be able to. For this reason, even if the number of stages of the pipe-shaped body increases, the diameter of the pipe-shaped body of the first stage (first stage) does not become so large, so that it is compact as a whole, that is, so-called light, thin, short and miniaturized. Is.
しかもこの伸縮器においては、紐材(5)に硬質部(5
a)と軟質部(5b)とを交互に形成したことにより、パ
イプ状体(2)の伸縮スライド時にパイプ状体(2)と
パイプ状体(2)の隙間に紐材(5)が食い込むことは
なく、このため常にパイプ状体(2)を円滑にスライド
させることができる効果をも有する。Moreover, in this expander / contractor, the cord (5) is attached to the hard part (5
By alternately forming a) and the soft part (5b), the cord material (5) bites into the gap between the pipe-shaped body (2) and the pipe-shaped body (2) when the pipe-shaped body (2) expands and contracts. Therefore, the pipe-like body (2) can always be slid smoothly.
以上、本考案の実施例について説明したが、本考案はこ
の実施例の構成に限定されることなく種々の変化変更が
可能であることは勿論である。Although the embodiment of the present invention has been described above, it goes without saying that the present invention is not limited to the configuration of this embodiment and various changes and modifications are possible.
以上のように本考案においては、隣接するパイプ状体同
士をその内空部において紐材で連結して抜け止めとした
ことにより、隣接するパイプ状体の径の差を小さくする
ことができるので、パイプ状体の段数が多くてもコンパ
クトな伸縮器を実現でき、しかも紐材に硬質部と軟質部
を交互に形成したことにより、パイプ状体とパイプ状体
の隙間に紐材が食い込むことはなく、パイプ状体を常に
円滑に伸縮スライドさせることができる効果をも有し、
従来には見られない実用的効果に優れた伸縮器を提供す
るものである。As described above, in the present invention, since the adjacent pipe-shaped bodies are connected to each other in the inner space by the cord material to prevent the pipes from coming off, the difference in diameter between the adjacent pipe-shaped bodies can be reduced. A compact expander can be realized even if the number of stages of the pipe-shaped body is large, and moreover, by alternately forming hard portions and soft portions on the cord material, the cord material can bite into the gap between the pipe-shaped bodies. Instead, it also has the effect that the pipe-shaped body can always be smoothly expanded and contracted,
It is intended to provide a stretcher excellent in practical effects that has never been seen before.
第1図は本考案の伸縮器の実施例を示す縦断側面図、第
2図はその収縮時の縦断側面図、第3図は従来の伸縮器
を示す縦断側面図である。 図中、(2)はパイプ状体、(5)は紐材、(5a)はそ
の硬質部、(5b)は軟質部である。FIG. 1 is a vertical cross-sectional side view showing an embodiment of the expander of the present invention, FIG. 2 is a vertical cross-sectional side view when the expander is contracted, and FIG. 3 is a vertical cross-sectional side view showing a conventional expander. In the figure, (2) is a pipe-shaped body, (5) is a cord material, (5a) is its hard part, and (5b) is a soft part.
Claims (1)
段のパイプ状体を入れ子状に嵌挿して成る伸縮器におい
て、隣接するパイプ状体とパイプ状体をその内空部にて
紐材で連結して抜け止めとし、かつこの紐材に、硬質部
と軟質部を交互に形成したことを特徴とする伸縮器。1. An expander comprising a plurality of stages of pipe-shaped bodies which are successively formed to have a smaller diameter toward the final stage and are inserted and inserted in a nested manner, wherein adjacent pipe-shaped bodies and pipe-shaped bodies are formed in an inner space thereof. An expander which is connected with a cord to prevent the cord from coming off and has hard parts and soft parts formed alternately on the cord.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11748389U JPH071596Y2 (en) | 1989-10-05 | 1989-10-05 | Stretcher |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11748389U JPH071596Y2 (en) | 1989-10-05 | 1989-10-05 | Stretcher |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0355997U JPH0355997U (en) | 1991-05-29 |
JPH071596Y2 true JPH071596Y2 (en) | 1995-01-18 |
Family
ID=31665698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11748389U Expired - Lifetime JPH071596Y2 (en) | 1989-10-05 | 1989-10-05 | Stretcher |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH071596Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004301808A (en) * | 2003-04-01 | 2004-10-28 | Daiki Rika Kogyo Kk | Sample collecting auxiliary implement |
-
1989
- 1989-10-05 JP JP11748389U patent/JPH071596Y2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004301808A (en) * | 2003-04-01 | 2004-10-28 | Daiki Rika Kogyo Kk | Sample collecting auxiliary implement |
Also Published As
Publication number | Publication date |
---|---|
JPH0355997U (en) | 1991-05-29 |
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