JPH076668Y2 - Wiring duct - Google Patents
Wiring ductInfo
- Publication number
- JPH076668Y2 JPH076668Y2 JP1177891U JP1177891U JPH076668Y2 JP H076668 Y2 JPH076668 Y2 JP H076668Y2 JP 1177891 U JP1177891 U JP 1177891U JP 1177891 U JP1177891 U JP 1177891U JP H076668 Y2 JPH076668 Y2 JP H076668Y2
- Authority
- JP
- Japan
- Prior art keywords
- bottom plate
- side piece
- duct
- side wall
- thin
- 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
【０００１】[0001]
【産業上の利用分野】 本考案は配線用ダクトに関す
る。TECHNICAL FIELD The present invention relates to a wiring duct.
【０００２】[0002]
【従来の技術】 配線用ダクトとしては、その側壁に複
数個の貫通穴を所定ピッチで設けておき、使用時に、そ
の貫通穴の間における側片を、折り取ることによって電
線引き出し口を開口する構造のものがある。このような
ダクトは、図６に示すように、側片６２が底板６１から
立ち上がる部分６２ａに、通常はノッチと呼ばれる部分
が設けられている。このノッチ部６２ａの断面形状は、
図７に示すように、肉厚が側片６２よりも薄い長方形状
である。なお図７は図６のＤ−Ｄ断面を示している。そ
して、電線引き出し口を開口するときには、側片６２を
ダクト外方へと折り曲げて、その薄肉部であるノッチ部
６２ａを破断させることによって、側片６２を底板６１
から折り取る構造となっている。2. Description of the Related Art As a wiring duct, a plurality of through holes are provided on a side wall of the wiring duct at a predetermined pitch, and a side piece between the through holes is broken off to open an electric wire outlet when used. There is a structure. Such duct, as shown in FIG. 6, the portion 62a of the side piece 62 rises from the bottom plate 61, normally provided with a part called a notch. The cross-sectional shape of the notch portion 62a is
As shown in FIG. 7, it has a rectangular shape with a wall thickness thinner than that of the side piece 62 . Note Figure 7 shows a section D-D of FIG. Then, when opening the electric wire outlet, the side piece 62 is bent to the outside of the duct, and the notch portion 62a, which is the thin portion thereof , is broken so that the side piece 62 is moved to the bottom plate 61.
It has a structure to be cut off from.
【０００３】[0003]
【考案が解決しようとする課題】 ところで、上記の従
来の配線用ダクトによれば、ノッチ部６２ａを破断する
には、側片６２を一定の角度以上、通常は４５°以上に
折り曲げる必要があり、その折り曲げ角度の範囲内に、
例えばマグネットスイッチやノーヒューズブレーカ等の
障害物が存在する場合には、図６に示すように、ノッチ
部６２ａが破断するに至るまでに、側片６２がその障害
物Ｍに当たってしまい、側片６２の折り取りは不可能と
なるといった欠点があった。By the way, according to the above-mentioned conventional wiring duct, in order to break the notch portion 62a, it is necessary to bend the side piece 62 at a certain angle or more, usually 45 ° or more. , Within its bending angle,
For example, when there is an obstacle such as a magnet switch or a no-fuse breaker, as shown in FIG. 6, the side piece 62 hits the obstacle M before the notch portion 62a breaks, and the side piece 62 is broken. It had the drawback that it would be impossible to break it.
【０００４】また、従来のダクトでは、側片の折り取り
を容易とするためには、ノッチ部６２ａの肉厚をより薄
くする必要があるが、その肉厚を薄くすると、側片部の
強度が弱くなるばかりでなく、射出成形時において、底
板部からの樹脂が側片部へと回らず成形不可となる。こ
のように、従来の配線用ダクトにおいては、側片の強度
の保持と、折り取りの容易性等とが相反する関係にある
といった問題が残されていた。Further, in the conventional duct, the notch portion 62a needs to have a thinner wall thickness in order to facilitate the breaking of the side piece. In addition to weakening, the resin from the bottom plate portion does not flow to the side piece portion during injection molding, making molding impossible. As described above, in the conventional wiring duct, the strength retention of the side piece and the easiness of breaking off are in a contradictory relationship.
And he said problems had been left behind.
【０００５】[0005]
【課題を解決するための手段】 本考案は、上記の従来
の欠点および問題点を一挙に解決すべくなされたもの
で、その構成を実施例に対応する図１，図２を参照しつ
つ説明すると、本考案は、側片２の底板１０から立ち上
がる部分２１の底板１０が延びる方向に沿う断面形状
を、底板１０の延びる方向に沿って薄肉部２ｂ、厚肉部
２ａおよび薄肉部２ｂがそれぞれ所定の長さで連なる凸
形としたことによって特徴づけられる。Means for Solving the Problems The present invention has been made to solve the above-mentioned conventional drawbacks and problems all at once, and the configuration thereof will be described with reference to FIGS. 1 and 2 corresponding to the embodiments. Then, according to the present invention, the cross-sectional shape of the portion 21 standing up from the bottom plate 10 of the side piece 2 along the direction in which the bottom plate 10 extends has the thin portion 2b, the thick portion 2a, and the thin portion 2b along the extending direction of the bottom plate 10, respectively. It is characterized by having a continuous convex shape of a predetermined length.
【０００６】[0006]
【作用】 図５を参照して説明する。まず、側片２を外
側へ倒すと、厚肉部２ａにクラックＣが生じる(a) 。こ
のクラックＣは、薄肉部２ｂの内側端部に相当する位置
までしか進展せず、この状態では、側片２は底板１０に
薄肉部２ｂの肉厚でつながったままの状態となる。すな
わち、この状態での側片２の立ち上がり部の断面形状
は、(b) に示すように薄肉部２ｂの肉厚で延びる細長い
長方形状となる。次いで、側片２を、今度はダクトの延
びる方向に倒して、側片２を引きちぎる(c) 。ここで、
(a) において側片２を折り曲げる角度は、肉厚部２ａに
クラックを生じさせる程度でよく、その角度は、側片２
を折り曲げのみによって折り取る場合に比して少なくて
済む。Operation will be described with reference to FIG. First, when the side piece 2 is tilted outward, a crack C is generated in the thick portion 2a (a). The crack C propagates only to a position corresponding to the inner end of the thin portion 2b, and in this state, the side piece 2 remains connected to the bottom plate 10 at the thickness of the thin portion 2b. That is, the cross-sectional shape of the rising portion of the side piece 2 in this state is an elongated rectangular shape extending with the thickness of the thin portion 2b as shown in (b). Next, the side piece 2 is tilted in the direction in which the duct extends, and the side piece 2 is torn off (c) . here,
In (a), the angle at which the side piece 2 is bent may be such that a crack is generated in the thick portion 2a.
Compared with the case of breaking off only by bending, it can be reduced.
【０００７】[0007]
【実施例】 本考案の実施例を、以下、図面に基づいて
説明する。まず、図３の正面図、および図４の側面図を
参照して、本考案を適用した配線用ダクトの全体構造に
ついて説明する。長尺物のコの字状本体の底板１０の両
側の側壁２０には、それぞれ複数個の貫通穴３０・・３０
が連続的に穿たれている。この各貫通穴３０によって、
側壁２０の下方部は縁が切られており、これによって各
貫通穴３０に挟まれる部分の側壁２０は片状となってい
る。なお、この側壁２０の片状部分を、以下、側片２と
称する。Embodiment An embodiment of the present invention will be described below with reference to the drawings. First, the overall structure of a wiring duct to which the present invention is applied will be described with reference to the front view of FIG. 3 and the side view of FIG. A plurality of through holes 30 ... 30 are provided in the side walls 20 on both sides of the bottom plate 10 of the U-shaped main body of a long object.
Is continuously worn. By each of these through holes 30,
The lower portion of the side wall 20 is cut off at the edge thereof, so that the side wall 20 sandwiched between the through holes 30 has a piece-like shape. The piece of the side wall 20 is hereinafter referred to as a side piece 2.
【０００８】また、側壁２０の上縁部には、このダクト
の蓋（図示せず）と嵌合するための嵌合部４０・・４０が
形成されており、この嵌合部４０は側壁２０の延長面よ
りも内方へ入り込んでいる。そして、本体に蓋を嵌め込
んだ使用状態では、二つの側壁２０は、互いに平行とな
るが、蓋を嵌めない状態では、蓋嵌合時の摩擦力を得る
ために、各側壁２０の上縁がやや拡がるように成形され
ている。Further, fitting portions 40, ... 40 for fitting with a lid (not shown) of the duct are formed at the upper edge portion of the side wall 20, and the fitting portion 40 is provided on the side wall 20. It is more inward than the extension of. The two side walls 20 are parallel to each other in the use state in which the lid is fitted in the main body, but in the state in which the lid is not fitted, the upper edge of each side wall 20 is obtained in order to obtain a frictional force when the lid is fitted. Is shaped so that it expands slightly.
【０００９】さて、本考案実施例の特徴部分を、図１お
よび図２に基づいて参照して説明する。図１はその特徴
部分の構造を示す縦断面図で、図２はそのＡ−Ａ断面図
である。なお、図１は図３におけるＢ−Ｂ断面を示して
いる。Now, the characteristic portion of the embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a vertical sectional view showing the structure of the characteristic portion, and FIG. 2 is a sectional view taken along the line AA. Note that FIG. 1 shows a BB cross section in FIG.
【００１０】側片２の立ち上がり部つまりノッチ部２１
は、厚肉部２ａと、その両端部からそれぞれ延びる薄肉
部２ｂを備えた構造で、その断面形状は図２に示すよう
な凸形となっている。この薄肉部２ｂは、側片２の下部
両側のアール部に相当する部分の内壁部に、くの字状の
ぬすみを設けることによって成形されており、その外面
は厚肉部２ａの外面に沿って延びている。なお、以上の
形状の配線用ダクトはプラスチックの連続射出成形法を
採用して成形される。 The rising portion of the side piece 2, that is, the notch portion 21.
It includes a thick portion 2a, a structure having a thin portion 2b respectively extending from both ends, the cross-sectional shape that has become convex as shown in FIG. The thin portion 2b of This, the inner wall of the portion corresponding to the rounded portion of the lower sides of the side pieces 2 are formed by providing a steal of dogleg shape, the outer surface of the outer surface of the thick portion 2a Running along. The above
The shape of the wiring duct is made by continuous plastic injection molding.
Adopted and molded.
【００１１】次に、本考案実施例の作用を、側片２の折
り取りの手順とともに説明する。図５はその作用説明図
である。まず、電線引き出し口を開口する部分の側壁２
０の上縁部を、ニッパーあるいは鋸等を用いて切断し
て、その側片２の上縁部を、他の側片の上縁部から縁を
切っておく。Next, the operation of the embodiment of the present invention will be described together with the procedure for breaking off the side piece 2. FIG. 5 is an explanatory diagram of its operation. First, the side wall 2 at the portion where the wire outlet is opened
The upper edge of 0 is cut with a nipper or a saw, and the upper edge of the side piece 2 is cut from the upper edges of the other side pieces.
【００１２】さて、(a) に示すように、まずは、側片２
をダクト外方へと少しだけ倒して、ノッチ部２１の厚肉
部２ａにクラックＣを生じさせる。このクラックＣは薄
肉部２ｂの近くまでしか発生しないので、この状態で
は、ノッチ部２１全体は破断せず、その断面形状は(b)
に示すような形状となる。すなわち側片２は底板１０に
薄肉部２ｂの肉厚と同程度の厚さの部分のみでつながっ
ている状態となる。そして、(c) に示すように、側片２
をダクトの長手方向に振って、底板１０から引きちぎる
ことによって、電線引き出し口を開口する。なお、側片
２を引きちぎる際に振る方向は左右のどちらの向きでも
よい。Now, as shown in (a), first, the side piece 2
Is slightly tilted toward the outside of the duct to cause a crack C in the thick portion 2a of the notch portion 21. Since the crack C occurs only near the thin portion 2b, in this state, the entire notch portion 21 is not broken and its cross-sectional shape is (b).
The shape is as shown in. That is, the side piece 2 is connected to the bottom plate 10 only at a portion having a thickness similar to that of the thin portion 2b. Then, as shown in (c), the side piece 2
Is shaken in the longitudinal direction of the duct and is torn off from the bottom plate 10 to open the electric wire outlet. The direction of shaking when the side piece 2 is torn off may be either left or right.
【００１３】ここで、薄肉部２ｂの肉厚は、射出により
成形できる程度にまで可能な限り薄くしておくことがで
きるので、上述した(c) の引きちぎり作業は、さほどの
力を要することなくかつ簡単に行える。また、厚肉部２
ａの肉厚は、射出成形時において、底板１０部から側片
２部への樹脂の通路が確保できる程度で、かつ上記の
(a) のクラックＣを発生させるための折り曲げを容易に
行える程度の肉厚となるように、樹脂自体の引っ張り応
力や折り曲げ角度等の諸条件を考慮して適宜に選定すれ
ばよい。Here, since the thickness of the thin portion 2b can be made as thin as possible to the extent that it can be molded by injection, the tearing operation of (c) described above requires a considerable amount of force. It can be done without and easily. Also, the thick part 2
The wall thickness of a is such that a resin passage can be secured from the bottom plate 10 part to the side piece 2 during injection molding, and
It may be appropriately selected in consideration of various conditions such as the tensile stress of the resin itself and the bending angle so that the thickness is such that the bending for causing the crack C of (a) can be easily performed.
【００１４】[0014]
【考案の効果】 以上説明したように、本考案によれ
ば、側片のノッチ部の底板の延びる方向に沿う断面形状
を、厚肉部とその両端それぞれに薄肉部を連ねた凸形と
し、側片の折り曲げにより厚肉部にクラックを発生させ
た後、側片をダクトの長手方向に振ることで、側片を折
り取れるようにしたので、側片のダクト外方への折り曲
げは、厚肉部にクラックを生じさせる程度でよくなり、
その角度を従来品よりも小さくできる。これにより、ダ
クトの近傍にマグネットスイッチ等の障害物が配置され
ている場合であっても、側片を折り取ることが可能とな
り、配線引き出し口を開口する位置の自由度が広くな
る。さらに、ノッチ部は厚肉部を有するので、側片の強
度が高く、しかも射出成形時において、底板部から側片
部への樹脂の通路を充分に確保することができ、成形不
可といった不具合も解消される。As described above, according to the present invention, the cross-sectional shape of the notch portion of the side piece along the extending direction of the bottom plate is a convex shape in which the thick portion and the thin portions are connected to both ends thereof, respectively. After the side piece is bent to generate a crack in the thick part, the side piece can be broken by shaking the side piece in the longitudinal direction of the duct. It will be enough to cause cracks in the meat,
The angle can be made smaller than conventional products. As a result, even when an obstacle such as a magnet switch is arranged near the duct, the side piece can be broken off, and the degree of freedom of the position where the wiring outlet is opened is widened. Further, since the notch portion has a thick portion, the strength of the side piece is high, and moreover, it is possible to secure a sufficient resin passage from the bottom plate portion to the side piece portion at the time of injection molding, and there is a problem that molding is impossible. Will be resolved.
【図面の簡単な説明】[Brief description of drawings]
【図１】 本考案実施例の要部構造を示す縦断面図FIG. 1 is a vertical cross-sectional view showing a main part structure of an embodiment of the present invention.
【図２】 本考案実施例の要部構造を示す水平断面図FIG. 2 is a horizontal cross-sectional view showing the main structure of the embodiment of the present invention.
【図３】 本考案を適用した配線用ダクトの正面図FIG. 3 is a front view of a wiring duct to which the present invention is applied.
【図４】 本考案を適用した配線用ダクトの側面図FIG. 4 is a side view of a wiring duct to which the present invention is applied.
【図５】 本考案実施例の作用説明図FIG. 5 is an operation explanatory view of the embodiment of the present invention.
【図６】 従来の配線用ダクトの側片部の構造例を示す
縦断面図FIG. 6 is a longitudinal sectional view showing a structural example of a side piece portion of a conventional wiring duct.
【図７】 従来の配線用ダクトの側片立ち上がり部の断
面形状を示す図FIG. 7 is a diagram showing a cross-sectional shape of a side piece rising portion of a conventional wiring duct.
２・・・・側片 ２ａ・・・・厚肉部 ２ｂ・・・・薄肉部 １０・・・・底板 ２０・・・・側壁 ２１・・・・側片の立ち上がり部（ノッチ部） ３０・・・・貫通穴 2 ... Side piece 2a ... Thick portion 2b ... Thin portion 10 ... Bottom plate 20 ... Side wall 21 ... Side piece rising portion (notch portion) 30. ... Through holes
Claims (1)
り、その底板および側壁は所定の方向に延びるととも
に、上記側壁には一端部が上記底板まで臨む短冊状の貫
通穴が、この側壁の延びる方向に沿って所定ピッチで穿
たれたダクトにおいて、上記側壁の上記各貫通穴に挟ま
れる部分の各側片の、上記底板からの立ち上がり部分の
当該底板が延びる方向に沿う断面形状が、その底板の延
びる方向に沿って薄肉部、厚肉部および薄肉部がそれぞ
れ所定長さで連なる凸形であることを特徴とする配線用
ダクト。1. Side walls rise from both sides of the bottom plate, and the bottom plate and the side walls extend in a predetermined direction, and a strip-shaped through hole whose one end faces the bottom plate is formed in the side wall in the extending direction of the side wall. In a duct formed at a predetermined pitch along the duct, a cross-sectional shape of each side piece of the portion sandwiched by the through holes of the side wall along a direction in which the bottom plate extends at a rising portion from the bottom plate has an extension of the bottom plate. A wiring duct characterized in that the thin-walled portion, the thick-walled portion, and the thin-walled portion each have a convex shape that is continuous in a predetermined length along the direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1177891U JPH076668Y2 (en) | 1991-03-06 | 1991-03-06 | Wiring duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1177891U JPH076668Y2 (en) | 1991-03-06 | 1991-03-06 | Wiring duct |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04108321U JPH04108321U (en) | 1992-09-18 |
| JPH076668Y2 true JPH076668Y2 (en) | 1995-02-15 |
Family
ID=31900865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1177891U Expired - Fee Related JPH076668Y2 (en) | 1991-03-06 | 1991-03-06 | Wiring duct |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH076668Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011172429A (en) * | 2010-02-22 | 2011-09-01 | Seiwa Electric Mfg Co Ltd | Duct body of wiring duct |
-
1991
- 1991-03-06 JP JP1177891U patent/JPH076668Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04108321U (en) | 1992-09-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |