JPH0339865Y2 - - Google Patents
Info
- Publication number
- JPH0339865Y2 JPH0339865Y2 JP4299785U JP4299785U JPH0339865Y2 JP H0339865 Y2 JPH0339865 Y2 JP H0339865Y2 JP 4299785 U JP4299785 U JP 4299785U JP 4299785 U JP4299785 U JP 4299785U JP H0339865 Y2 JPH0339865 Y2 JP H0339865Y2
- Authority
- JP
- Japan
- Prior art keywords
- cable
- seal
- cylindrical
- insertion hole
- bush
- 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
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Switch Cases, Indication, And Locking (AREA)
Description
【考案の詳細な説明】
「対象技術分野」
この考案は光電スイツチや近接スイツチ等のス
イツチのケーブル引出し装置の改良に関するもの
である。[Detailed Description of the Invention] "Target Technical Field" This invention relates to an improvement of a cable pull-out device for a switch such as a photoelectric switch or a proximity switch.
「従来装置およびその欠点」
従来この種のケーブル引出し装置は第３図に示
すように筒状のボス部７内にシール９を収容する
とともに、ボス部７に金属製のブツシユ１３を圧
入し、これによつてシール９を圧縮し、さらにこ
のシールによつてケーブル５を圧迫することによ
りこのケーブルとボス部７との間のシールを行な
つているが、ブツシユ１３の圧入量が不足すると
シール９に対する圧縮力が減少し、このためケー
ブル５の引抜き強度およびシール性が低下し、ま
たブツシユ１３の圧入量が多すぎると各部に余分
な圧力が加わり、ケーブル５を必要以上に圧迫し
たり、ボス部７を破損したりするおそれがあつ
た。"Conventional Device and Its Disadvantages" Conventionally, this type of cable pull-out device has a seal 9 housed in a cylindrical boss portion 7 as shown in FIG. 3, and a metal bush 13 press-fitted into the boss portion 7. This compresses the seal 9, which in turn compresses the cable 5, creating a seal between the cable and the boss 7. However, if the amount of push-in of the bush 13 is insufficient, the seal will be sealed. The compressive force on the cable 5 decreases, which reduces the pull-out strength and sealing performance of the cable 5. Also, if the amount of push-in of the bush 13 is too large, excess pressure is applied to each part, causing the cable 5 to be compressed more than necessary. There was a risk that the boss portion 7 would be damaged.
「目的」
この考案はこのような従来の欠点にかんがみ、
シールをつねに一定の圧力により圧縮し、これに
よつてケーブルとハウジングとの間のシールを適
切に行なうことを目的とするものである。``Purpose'' This idea was created in consideration of the drawbacks of the conventional method.
The purpose is to constantly compress the seal with a constant pressure, thereby ensuring a proper seal between the cable and the housing.
「実施例」
以下図によつてこの考案の一実施例について説
明する。``Example'' An example of this invention will be described below with reference to the drawings.
すなわち第１図において、スイツチのハウジン
グ１の内部には電気回路を構成するプリント回路
基板２が収容されている。またハウジング１の側
壁３にはケーブル挿通孔４が設けられ、この挿通
孔を通してケーブル５の一端はハウジング１内に
引込まれ、かつプリント回路基板２に電気的に接
続される。側壁３にはその外方に向つて筒状のボ
ス部７がケーブル挿通孔４とほぼ同心に突設され
ている。このボス部内には筒状のシール９が収容
される。このシールはその軸心に沿つてケーブル
５を貫挿させる貫挿孔１０を有し、かつその一端
にはケーブル挿通孔４に挿入される突縁部１１
が、またその他端には小径の筒部１２が一体に形
成されている。ボス部７内においてシール９を圧
縮する金属製のブツシユ１３はその軸心にシール
９の筒部１２およびケーブル５を貫通させる貫通
孔１４を有し、これによつて筒状に形成されてい
る。そしてこのブツシユの一端外周にはローレツ
ト１５が施され、またその他端部において、その
周縁部にはボス部７の端縁と当接する鍔部１７が
設けられている。さらにこの鍔部の内側すなわち
ブツシユ１３の一端側において、そのブツシユに
はその外周に沿つて溝１８が形成されている。 That is, in FIG. 1, a printed circuit board 2 constituting an electric circuit is housed inside a housing 1 of the switch. Further, a cable insertion hole 4 is provided in the side wall 3 of the housing 1, and one end of the cable 5 is drawn into the housing 1 through this insertion hole and is electrically connected to the printed circuit board 2. A cylindrical boss portion 7 is provided on the side wall 3 so as to protrude outward from the side wall 3 so as to be substantially concentric with the cable insertion hole 4 . A cylindrical seal 9 is accommodated within this boss portion. This seal has a through hole 10 along its axis through which the cable 5 is inserted, and a protruding edge 11 at one end that is inserted into the cable insertion hole 4.
However, a small diameter cylindrical portion 12 is integrally formed at the other end. A metal bush 13 that compresses the seal 9 within the boss portion 7 has a through hole 14 at its axis that allows the cylindrical portion 12 of the seal 9 and the cable 5 to pass through, and is thus formed into a cylindrical shape. . A knurling 15 is provided on the outer periphery of one end of the bush, and a flange 17 is provided on the peripheral edge of the other end, which abuts against the edge of the boss 7. Further, on the inside of this collar portion, that is, on one end side of the bush 13, a groove 18 is formed in the bush along its outer periphery.
なお第２図はこの考案におけるケーブル引出し
装置を光電スイツチに適用したばあいの分解斜視
図で、その詳細についての説明は省略する。 FIG. 2 is an exploded perspective view of the cable pull-out device of this invention applied to a photoelectric switch, and detailed explanation thereof will be omitted.
「効果」
この考案は上述のようにボス部７内に筒状のシ
ール９を収容するとともに、ボス部７に筒状ブツ
シユ１３を圧入し、かつこのブツシユの端部にお
いてその周縁部にボス部７の端縁と当接する鍔部
１７を突設しているので、ブツシユ１３のボス部
７内に圧入される寸法がつねに一定で、したがつ
てシール９の圧縮量が変わることがなく、信頼性
の高いシールを行なうことができ、また鍔部１７
がブツシユ１３の圧入量を規定する治具の作用を
するため、その作業性がきわめてよい利点があ
る。"Effects" As described above, this invention houses the cylindrical seal 9 in the boss part 7, press-fits the cylindrical bushing 13 into the boss part 7, and attaches the boss part to the peripheral edge of the bushing at the end of the bushing. Since the flange 17 that comes into contact with the edge of the bushing 13 is protruded, the size of the bushing 13 that is press-fitted into the boss part 7 is always constant, so the amount of compression of the seal 9 does not change, making it reliable. It is possible to perform a highly durable seal, and the flange 17
Since it acts as a jig to define the amount of press-in of the bush 13, it has the advantage of very good workability.
第１図はこの考案のスイツチのケーブル引出し
装置の一実施例を示す側断面図、第２図はこの考
案における装置を光電スイツチに適用した例を示
す分解斜視図、第３図は従来装置の側断面図であ
る。
１……ハウジング、２……プリント回路基板、
３……側壁、４……ケーブル挿通孔、５……ケー
ブル、７……ボス部、９……シール、１０……貫
挿孔、１１……突縁部、１２……筒部、１３……
ブツシユ、１４……貫通孔、１５……ローレツ
ト、１７……鍔部、１８……溝。
Fig. 1 is a side sectional view showing an embodiment of the cable pull-out device for a switch of this invention, Fig. 2 is an exploded perspective view showing an example of applying the device of this invention to a photoelectric switch, and Fig. 3 is a diagram of a conventional device. FIG. 1...Housing, 2...Printed circuit board,
3... Side wall, 4... Cable insertion hole, 5... Cable, 7... Boss part, 9... Seal, 10... Penetration hole, 11... Projection, 12... Cylindrical part, 13... …
Bush, 14...through hole, 15...knurling, 17...flange, 18...groove.
Claims (1)
ケーブル５を挿通させるケーブル挿通孔４を設
けるとともに、その側壁外方に筒状のボス部７
を、上記ケーブル挿通孔４とほぼ同心に突設
し、このボス部内に上記ケーブル５を挿通させ
る筒状のシール９を収容し、上記ボス部７内に
は上記ケーブル５を貫挿させる貫挿孔１０を有
し、かつ上記シール９を、上記ボス部７内にお
いて圧縮する筒状ブツシユ１３を圧入し、さら
にこのブツシユの端部において、その周縁部に
上記ボス部７の端縁と当接する鍔部１７を突設
したスイツチのケーブル引出し装置。 (2) 上記シール９の一端に、上記ケーブル挿通孔
４に挿入される突縁部１１を設けるとともに、
その他端に上記ブツシユ１３の貫挿孔１４に貫
挿される筒部１２を一体に形成した実用新案登
録請求の範囲第１項記載のスイツチのケーブル
引出し装置。[Claims for Utility Model Registration] (1) A cable insertion hole 4 through which a cable 5 is inserted is provided in the side wall 3 of the housing 1 that accommodates the electric circuit, and a cylindrical boss portion 7 is provided on the outside of the side wall.
is provided protruding substantially concentrically with the cable insertion hole 4, a cylindrical seal 9 through which the cable 5 is inserted is accommodated in the boss portion, and a through-insertion through which the cable 5 is inserted is housed in the boss portion 7. A cylindrical bushing 13 having a hole 10 and compressing the seal 9 in the boss part 7 is press-fitted, and further, at the end of this bush, its peripheral edge abuts the edge of the boss part 7. A cable pull-out device for a switch with a protruding flange 17. (2) A projecting edge 11 is provided at one end of the seal 9 to be inserted into the cable insertion hole 4, and
The cable pulling device for a switch according to claim 1, wherein the other end is integrally formed with a cylindrical portion 12 that is inserted into the insertion hole 14 of the bush 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4299785U JPH0339865Y2 (en) | 1985-03-25 | 1985-03-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4299785U JPH0339865Y2 (en) | 1985-03-25 | 1985-03-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61158030U JPS61158030U (en) | 1986-09-30 |
| JPH0339865Y2 true JPH0339865Y2 (en) | 1991-08-22 |
Family
ID=30554256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4299785U Expired JPH0339865Y2 (en) | 1985-03-25 | 1985-03-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0339865Y2 (en) |
-
1985
- 1985-03-25 JP JP4299785U patent/JPH0339865Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61158030U (en) | 1986-09-30 |
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