JP2704402B2 - External corrugated pipe and external corrugated pipe connection device - Google Patents
External corrugated pipe and external corrugated pipe connection deviceInfo
- Publication number
- JP2704402B2 JP2704402B2 JP61167700A JP16770086A JP2704402B2 JP 2704402 B2 JP2704402 B2 JP 2704402B2 JP 61167700 A JP61167700 A JP 61167700A JP 16770086 A JP16770086 A JP 16770086A JP 2704402 B2 JP2704402 B2 JP 2704402B2
- Authority
- JP
- Japan
- Prior art keywords
- box
- locking projection
- insertion hole
- corrugated pipe
- tube insertion
- 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 - Fee Related
Links
Landscapes
- Details Of Indoor Wiring (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、例えば電気配線用のボックスに接続する
係止構造を備えた外面波付管に関するものである。
（従来技術）
従来、ボックスに外面波付管を接続する場合には、例
えば実開昭60−38018号公報に示すように、内部に係止
爪を有するコネクタのおねじ体をボックスの管挿入孔に
外側から挿入して、ボックスの内側からコネクタのめね
じ体をねじ込んでコネクタをボックスに取付け、コネク
タに外面波付管の端部を挿入して外面波付管の谷部に係
止爪を係止することにより、外面波付管をボックスに固
定して接続するようにしていた。
（発明が解決しようとする問題点）
ところが、この従来の構成においては、内部に係止爪
を有するコネクタを使用して外面波付管をボックスに接
続しているため、構造が複雑で高価であるとともに、外
面波付管に対するコネクタの取付け、ボックスに対する
コネクタの取付けとの２つの作業を必要として、取付作
業が非常に煩雑で手数がかかるという問題があった。
（問題点を解決するための手段）
第１項に係る外面波付管は、任意断面で切断可能であ
り、外面の複数個の谷部の外周に係止突起が形成される
とともに、前記係止突起または前記係止突起に対向する
山部の対向面に凸部または凹部が形成され、前記係止突
起をボックスの管挿入孔に形成された切欠より挿入して
回転させることにより、前記係止突起とこれと対向する
前記山部との間に嵌入される前記ボックスの管挿入孔の
周壁に形成された凹部または凸部と係合して前記ボック
スに対する回動を防止して前記ボックスに固定されるも
のである。
第２項に係る外面波付管接続装置は、周縁に切欠を有
する管挿入孔が周壁に形成されるとともに、前記管挿入
孔の周壁に凹部または凸部が形成されたボックスと、任
意断面で切断可能であり、外面の複数個の谷部の外周に
係止突起が形成されるとともに、前記係止突起または前
記係止突起に対向する山部の対向面に凸部または凹部が
形成され、前記係止突起を前記ボックスの管挿入孔に形
成された切欠より挿入して回転させることにより、前記
係止突起とこれと対向する前記山部の間に嵌入された前
記ボックスの管挿入孔の周壁の凹部または凸部と係合し
て前記ボックスに対する回動を防止して前記ボックスに
固定された外面波付管とを具備するものである。
第３項に係る外面波付管は、任意断面で切断可能であ
り、外面の複数個の谷部の外周に係止突起が形成される
とともに、前記係止突起及びこれと対向する山部の少な
くとも一方の対向面が前記係止突起と山部との間隔を狭
める傾斜面に形成されて、前記係止突起をボックスの管
挿入孔に形成された切欠より挿入して回転させることに
より、前記係止突起とこれと対向する前記山部との間に
前記ボックスの管挿入孔の周壁が嵌入されて前記ボック
スに固定されるものである。
第４項に係る外面波付管接続装置は、周縁に切欠を有
する管挿入孔が周壁に形成されたボックスと、任意断面
で切断可能であり、外面の複数個の谷部の外周に係止突
起が形成されるとともに、前記係止突起及びこれと対向
する山部の少なくとも一方の対向面が前記係止突起と山
部との間隔を狭める傾斜面に形成されて、前記係止突起
を前記ボックスの管挿入孔の切欠より挿入して回転させ
ることにより、前記係止突起と前記山部との間に前記ボ
ックスの管挿入孔の周壁が嵌入されて前記ボックスに固
定された外面波付管とを具備するものである。
（作用）
従って、この発明によれば、コネクタ等の接続具を全
く必要とせず、外面波付管の係止突起をボックスの管挿
入孔に設けられた切欠より挿入し、回転させることによ
って外面波付管をボックスに固定することができ、その
取付作業を容易かつ短時間に行うことができる。
（実施例）
以下、この発明を具体化した外面波付管及びその係止
構造を図面に基づいて説明する。
まず、第１図及び第２図は本発明の一実施例を示す。
この実施例において、外面波付管（３）は２つの山部
（４）おきに１つの山部（４）が除かれた形状に形成さ
れており、前記１山除かれた部分の谷部（５）にはその
中間位置にほぼ円筒状をなす一対の係止突起（９）が形
成されている。一方、ボックス（１）の管挿入孔（２）
には係止突起（９）を挿入するための一対の切欠（８）
が形成されている。また、各係止突起（９）に対応して
山部（４）の一側面には円弧上の凸部（10）が形成さ
れ、それに対応してボックス（１）の周壁外面に凹部
（11）が形成されている。従って、この実施例において
は、外面波付管（３）を係止突起（９）の前で切断した
後、その切断端部を係止突起（９）を切欠（８）に対応
させた状態でボックス（１）の管挿入孔（２）内に挿入
するとともに、ほぼ90度回転させると、前記外面波付管
（３）側の凸部（10）がボックス（１）側の凹部（11）
に係合する。このため、係止突起（９）がボックス
（１）の管挿入孔（２）の周壁に嵌入して抜け止め状態
となるとともに、外面波付管（３）はこの取付状態にお
いて回転不能に保持される。その結果、外面波付管
（３）はボックス（１）に安定して固定される。
なお、係止突起（９）と外面波付管（３）の山部
（４）との間隔がボックス（１）の管挿入孔（２）の周
壁の板厚とほぼ同一であれば、外面波付管（３）を強制
的にほぼ90度回転した後、係止突起（９）と山部（４）
との間にボックス（１）の周壁が挟持された状態にな
り、外面波付管（３）をボックス（１）に一層確実に取
付けることができる。
次に、第３図は本発明の別の実施例を示す。
この実施例では、ほぼ直方体状をなす一対の係止突起
（12）が設けられ、その一側には係止突起（12）に対向
する山部（４）との間隔が次第に狭まるように傾斜面
（12a）が形成されている。従って、この実施例におい
ては、外面波付管（３）の端部をボックス（１）の管挿
入孔（２）内に挿入するとともにほぼ90度回転させたと
きボックス（１）の周壁が係止突起（12）と山部（４）
との間で強固に締付け挟持され、外面波付管（３）の取
付状態が回動しにくい状態に保持される。
なお、この発明は前記各実施例のほかに、次のように
変更して具体化することもできる。
第２図に二点鎖線で示すように、外面波付管（３）の
山部（４）の側面に凹部（14）を設けるとともに、ボッ
クス（１）の外面にその凹部（14）と係合する凸部を形
成すること。
第３図に二点鎖線で示すように、係止突起（12）側の
傾斜面（12a）を省略して、山部（４）の側面に傾斜面
（15）を設けること。或いは、第１図乃至第３図に示す
実施例について、凸部（10）または凹部（14）を係止突
起（９）の側面に設けること。
前記各実施例において、係止突起（９）（12）を外面
波付管（３）の山部（４）の１つおき又は３つ以上の複
数個おきに形成すること。
（発明の効果）
以上詳述したように、この発明は、外面波付管の谷部
の外周に係止突起を形成し、ボックスの管挿入孔には前
記係止突起が挿入される切欠を設けたことにより、従来
のコネクタ等の接続具を全く必要とせず、構造が簡単で
安価に製作することができるとともに、外面波付管をボ
ックスに取付ける際には、係止突起を管挿入孔に設けら
れた切欠より挿入し、回転させれば外面波付管の係止突
起と山部との間にボックスの管挿入孔の周壁を嵌入し、
外面波付管をボックスに固定することができ、その取付
作業を容易かつ短時間に行うことができる。
そして、係止突起または前記係止突起に対向する山部
の対向面にボックスに対する回動を防止する凸部または
凹部を設け、或いは、係止突起及びこれと対向する山部
の少なくとも一方の対向面を前記係止突起と山部との間
隔を狭める傾斜面に形成しているので、外面波付管が回
転して係止突起がボックスの管挿入孔の切欠から抜け外
れるのを確実に防止できる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an external corrugated tube having a locking structure for connecting to, for example, a box for electric wiring. (Prior Art) Conventionally, when an external corrugated tube is connected to a box, as shown in, for example, Japanese Utility Model Application Laid-open No. 60-38018, a connector external thread having a locking claw therein is inserted into the tube of the box. Insert the connector into the box by inserting the female thread of the connector from the inside of the box into the hole from the outside, and insert the end of the external corrugated pipe into the connector, and engage the locking claw in the valley of the external corrugated pipe. By locking the outer corrugated tube to the box. (Problems to be Solved by the Invention) However, in this conventional configuration, since the external corrugated tube is connected to the box using a connector having a locking claw inside, the structure is complicated and expensive. In addition, there is a problem that two operations of attaching the connector to the external corrugated tube and attaching the connector to the box are required, and the attaching operation is very complicated and troublesome. (Means for Solving the Problems) The outer corrugated pipe according to the first aspect is capable of being cut at an arbitrary cross section, and has a locking projection formed on the outer periphery of a plurality of valleys on the outer surface. A protrusion or a recess is formed on a surface of the ridge facing the stop protrusion or the stop protrusion, and the stop protrusion is inserted into a notch formed in a tube insertion hole of a box and rotated to thereby rotate the lock. It engages with a concave or convex portion formed on the peripheral wall of the tube insertion hole of the box which is fitted between the stop projection and the crest facing the same, thereby preventing rotation with respect to the box by engaging with the box. It is fixed. An outer surface corrugated pipe connection device according to claim 2, wherein a tube insertion hole having a notch in a peripheral edge is formed in a peripheral wall, and a box in which a concave portion or a convex portion is formed in the peripheral wall of the tube insertion hole, It is severable, and a locking projection is formed on the outer periphery of the plurality of valleys on the outer surface, and a convex portion or a concave portion is formed on an opposing surface of the locking projection or a ridge facing the locking projection, By inserting and rotating the locking projection from a notch formed in the tube insertion hole of the box, the box projection of the box inserted into the box inserted between the locking projection and the crest opposed thereto is inserted. An outer corrugated tube fixed to the box by engaging with a concave or convex portion of the peripheral wall to prevent rotation with respect to the box. The external corrugated pipe according to the third aspect is capable of being cut at an arbitrary cross section, and has a locking projection formed on an outer periphery of a plurality of valleys on the outer surface. At least one opposing surface is formed on an inclined surface that narrows the gap between the locking protrusion and the peak, and the locking protrusion is inserted through a notch formed in a tube insertion hole of a box and rotated to thereby rotate the locking protrusion. The peripheral wall of the tube insertion hole of the box is fitted between the locking projection and the crest opposed thereto, and is fixed to the box. An outer surface corrugated pipe connecting device according to claim 4, wherein the pipe having a notch in the peripheral edge has a tube insertion hole formed in the peripheral wall, and can be cut at an arbitrary cross section, and is locked on the outer periphery of a plurality of valleys on the outer surface. A projection is formed, and at least one opposing surface of the locking projection and a ridge facing the locking projection is formed on an inclined surface that narrows an interval between the locking projection and the peak. An outer corrugated tube fixed to the box by inserting and rotating from the notch of the tube insertion hole of the box so that the peripheral wall of the tube insertion hole of the box is fitted between the locking projection and the crest. Is provided. (Operation) Therefore, according to the present invention, a connector such as a connector is not required at all, and the locking projection of the externally corrugated pipe is inserted from the notch provided in the pipe insertion hole of the box and rotated to rotate the external surface. The corrugated pipe can be fixed to the box, and the mounting operation can be performed easily and in a short time. (Example) Hereinafter, an external corrugated tube embodying the present invention and a locking structure thereof will be described with reference to the drawings. First, FIGS. 1 and 2 show one embodiment of the present invention. In this embodiment, the outer corrugated pipe (3) is formed in a shape in which one ridge (4) is removed every two ridges (4), and a valley of the portion where the one ridge is removed. At (5), a pair of substantially cylindrical locking projections (9) is formed at an intermediate position. On the other hand, the tube insertion hole (2) of the box (1)
Has a pair of notches (8) for inserting the locking projections (9).
Are formed. An arc-shaped convex portion (10) is formed on one side surface of the peak portion (4) corresponding to each locking projection (9), and a concave portion (11) is formed on the outer surface of the peripheral wall of the box (1) correspondingly. ) Is formed. Therefore, in this embodiment, after the external corrugated pipe (3) is cut in front of the locking projection (9), the cut end thereof has the locking projection (9) corresponding to the notch (8). When it is inserted into the tube insertion hole (2) of the box (1) and rotated by about 90 degrees, the convex portion (10) on the outer surface corrugated tube (3) side becomes the concave portion (11) on the box (1) side. )
Engages. For this reason, the locking projection (9) is fitted into the peripheral wall of the tube insertion hole (2) of the box (1) to prevent the tube from coming off, and the externally corrugated tube (3) is held unrotatably in this mounted state. Is done. As a result, the externally corrugated tube (3) is stably fixed to the box (1). If the distance between the locking projection (9) and the crest (4) of the externally corrugated tube (3) is substantially the same as the thickness of the peripheral wall of the tube insertion hole (2) of the box (1), the external surface After forcibly rotating the corrugated pipe (3) by approximately 90 degrees, the locking projection (9) and the crest (4)
The outer wall of the box (1) is sandwiched between the box (1) and the outer corrugated pipe (3) can be more securely attached to the box (1). Next, FIG. 3 shows another embodiment of the present invention. In this embodiment, a pair of substantially rectangular parallelepiped locking projections (12) are provided, and one side thereof is inclined so that the interval between the projection (12) and the crest (4) facing the locking projection (12) gradually decreases. A surface (12a) is formed. Therefore, in this embodiment, when the end of the externally corrugated pipe (3) is inserted into the pipe insertion hole (2) of the box (1) and rotated by approximately 90 degrees, the peripheral wall of the box (1) engages. Stop projection (12) and crest (4)
And the outer corrugated pipe (3) is held in a state where it is difficult to rotate. The present invention can be embodied with the following modifications in addition to the above embodiments. As shown by the two-dot chain line in FIG. 2, a concave portion (14) is provided on the side surface of the peak portion (4) of the external corrugated pipe (3), and the concave portion (14) is engaged with the outer surface of the box (1). Forming convex portions that fit together. As shown by a two-dot chain line in FIG. 3, the inclined surface (12a) on the side of the locking projection (12) is omitted, and an inclined surface (15) is provided on the side surface of the peak portion (4). Alternatively, in the embodiment shown in FIGS. 1 to 3, the protrusion (10) or the recess (14) is provided on the side surface of the locking projection (9). In each of the above embodiments, the locking projections (9) and (12) are formed at every other peak or at every three or more of the peaks (4) of the external corrugated pipe (3). (Effects of the Invention) As described in detail above, the present invention forms a locking projection on the outer periphery of the valley of the externally corrugated pipe, and has a notch into which the locking projection is inserted in the pipe insertion hole of the box. By providing the connector, a conventional connector or other connecting device is not required at all, the structure can be manufactured simply and inexpensively, and when attaching the externally corrugated tube to the box, the locking protrusion is formed in the tube insertion hole. Insert from the notch provided in, and if rotated, fit the peripheral wall of the tube insertion hole of the box between the locking projection of the external corrugated tube and the peak,
The external corrugated tube can be fixed to the box, and the mounting operation can be performed easily and in a short time. A projection or a recess for preventing rotation with respect to the box is provided on the facing surface of the locking projection or the ridge facing the locking projection, or at least one of the locking projection and the ridge facing the locking projection. Since the surface is formed as an inclined surface that narrows the distance between the locking projection and the peak, the externally corrugated pipe is prevented from rotating and the locking projection is securely prevented from falling out of the notch in the pipe insertion hole of the box. it can.
【図面の簡単な説明】
第１図はこの発明の一実施例の部分縦断面図、第２図は
第１図の部分横断面図、第３図は別の実施例を示す部分
横断面図である。
符号の説明
１……ボックス、２……管挿入孔、
３……外面波付管、４……山部、５……谷部
９、12……係止突起、
10……凸部、14……凹部、
12a……傾斜面。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial longitudinal sectional view of one embodiment of the present invention, FIG. 2 is a partial transverse sectional view of FIG. 1, and FIG. 3 is a partial transverse sectional view of another embodiment. It is. DESCRIPTION OF SYMBOLS 1... Box, 2... Tube insertion hole, 3... External corrugated tube 4... Ridge 5, valley 9, 12... ... recess, 12a ... inclined surface.
Claims (1)
外周に係止突起が形成されるとともに、前記係止突起ま
たは前記係止突起に対向する山部の対向面に凸部または
凹部が形成され、前記係止突起をボックスの管挿入孔に
形成された切欠より挿入して回転させることにより、前
記係止突起とこれと対向する前記山部との間に嵌入され
る前記ボックスの管挿入孔の周壁に形成された凹部また
は凸部と係合して前記ボックスに対する回動を防止して
前記ボックスに固定されることを特徴とする外面波付
管。 ２．周縁に切欠を有する管挿入孔が周壁に形成されると
ともに、前記管挿入孔の周壁に凹部または凸部が形成さ
れたボックスと、 任意断面で切断可能であり、外面の複数個の谷部の外周
に係止突起が形成されるとともに、前記係止突起または
前記係止突起に対向する山部の対向面に凸部または凹部
が形成され、前記係止突起を前記ボックスの管挿入孔に
形成された切欠より挿入して回転させることにより、前
記係止突起とこれと対向する前記山部との間に嵌入され
た前記ボックスの管挿入孔の周壁の凹部または凸部と係
合して前記ボックスに対する回動を防止して前記ボック
スに固定された外面波付管と を具備することを特徴とする外面波付管接続装置。 ３．任意断面で切断可能であり、外面の複数個の谷部の
外周に係止突起が形成されるとともに、前記係止突起及
びこれと対向する山部の少なくとも一方の対向面が前記
係止突起と山部との間隔を狭める傾斜面に形成されて、
前記係止突起をボックスの管挿入孔に形成された切欠よ
り挿入して回転させることにより、前記係止突起とこれ
と対向する前記山部との間に前記ボックスの管挿入孔の
周壁が嵌入されて前記ボックスに固定されることを特徴
とする外面波付管。 ４．周縁に切欠を有する管挿入孔が周壁に形成されたボ
ックスと、 任意断面で切断可能であり、外面の複数個の谷部の外周
に係止突起が形成されるとともに、前記係止突起及びこ
れと対向する山部の少なくとも一方の対向面が前記係止
突起と山部との間隔を狭める傾斜面に形成されて、前記
係止突起を前記ボックスの管挿入孔の切欠より挿入して
回転させることにより、前記係止突起と前記山部との間
に前記ボックスの管挿入孔の周壁が嵌入されて前記ボッ
クスに固定された外面波付管と を具備することを特徴とする外面波付管接続装置。(57) [Claims] It can be cut at an arbitrary cross section, and a locking projection is formed on the outer periphery of the plurality of valleys on the outer surface, and a projection or a recess is formed on an opposing surface of the locking projection or a ridge facing the locking projection. The tube of the box, which is formed and is inserted between the notch formed in the tube insertion hole of the box and is rotated, so that the tube of the box is inserted between the locking protrusion and the crest opposed thereto. An external corrugated pipe characterized by being fixed to the box by engaging with a concave part or a convex part formed on a peripheral wall of the insertion hole to prevent rotation with respect to the box. 2. A tube insertion hole having a notch in the periphery is formed in the peripheral wall, and a box in which a concave portion or a convex portion is formed in the peripheral wall of the tube insertion hole can be cut at an arbitrary cross section, and a plurality of troughs on the outer surface can be cut. A locking projection is formed on the outer periphery, and a projection or a concave portion is formed on the locking projection or a facing surface of a ridge facing the locking projection, and the locking projection is formed in a tube insertion hole of the box. By inserting and rotating from the cutout formed, the engaging protrusion engages with the concave portion or convex portion of the peripheral wall of the tube insertion hole of the box fitted between the locking protrusion and the mountain portion opposed thereto. An external corrugated pipe connection device, comprising: an external corrugated pipe fixed to the box to prevent rotation with respect to the box. 3. It can be cut at any cross section, and a locking projection is formed on the outer periphery of the plurality of valleys on the outer surface, and at least one opposing surface of the locking projection and a crest opposed thereto is the same as the locking projection. It is formed on a slope that narrows the gap with the mountain,
The peripheral wall of the tube insertion hole of the box is inserted between the locking projection and the crest facing thereto by inserting and rotating the locking protrusion from the notch formed in the tube insertion hole of the box. An external corrugated pipe characterized by being fixed to the box. 4. A box in which a tube insertion hole having a notch in a peripheral edge is formed in a peripheral wall; and a box which can be cut at an arbitrary cross-section, wherein a locking projection is formed on an outer periphery of a plurality of valleys on an outer surface, and the locking projection and At least one of the opposing surfaces of the crests is formed on an inclined surface that narrows the distance between the locking protrusions and the crests, and the locking protrusions are inserted through the notches in the tube insertion holes of the box and rotated. The outer corrugated pipe further comprising: an outer corrugated pipe in which the peripheral wall of the tube insertion hole of the box is fitted between the locking projection and the crest, and fixed to the box. Connection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61167700A JP2704402B2 (en) | 1986-07-16 | 1986-07-16 | External corrugated pipe and external corrugated pipe connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61167700A JP2704402B2 (en) | 1986-07-16 | 1986-07-16 | External corrugated pipe and external corrugated pipe connection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6328209A JPS6328209A (en) | 1988-02-05 |
| JP2704402B2 true JP2704402B2 (en) | 1998-01-26 |
Family
ID=15854596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61167700A Expired - Fee Related JP2704402B2 (en) | 1986-07-16 | 1986-07-16 | External corrugated pipe and external corrugated pipe connection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2704402B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02136418U (en) * | 1989-04-14 | 1990-11-14 | ||
| JPH0652324U (en) * | 1993-12-17 | 1994-07-15 | 未来工業株式会社 | Connection structure of pipe and socket |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4722057U (en) * | 1971-03-29 | 1972-11-11 |
-
1986
- 1986-07-16 JP JP61167700A patent/JP2704402B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6328209A (en) | 1988-02-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |