JPH0531034U - Grommet - Google Patents
GrommetInfo
- Publication number
- JPH0531034U JPH0531034U JP8752791U JP8752791U JPH0531034U JP H0531034 U JPH0531034 U JP H0531034U JP 8752791 U JP8752791 U JP 8752791U JP 8752791 U JP8752791 U JP 8752791U JP H0531034 U JPH0531034 U JP H0531034U
- Authority
- JP
- Japan
- Prior art keywords
- annular groove
- peripheral surface
- case
- wall
- grommet
- 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.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 27
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 10
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
Landscapes
- Insulating Bodies (AREA)
Abstract
(57)【要約】
【目的】 ケースの壁部との接合部のシール機能を確実
化させる構造とした。
【構成】 ケース２の壁部と係合する環状溝４の底周面
に、外方へ向った突起５を付設するとともに、環状溝４
の側方に、外周面から内方へ向ったスリット６を形成し
た構造とする。
(57) [Summary] [Purpose] The structure was designed to ensure the sealing function of the joint with the wall of the case. [Structure] An outwardly projecting projection 5 is attached to the bottom peripheral surface of the annular groove 4 that engages with the wall portion of the case 2, and the annular groove 4
Slits 6 are formed laterally inward from the outer peripheral surface.
Description
【０００１】[0001]
本考案は、ソレノイド、センサ等において、ケースの壁部を貫通するリード線 と壁部との接続部のシール手段として使用されるグロメットの構造に関する。 The present invention relates to a structure of a grommet used as a sealing means for a connecting portion between a lead wire penetrating a wall portion of a case and the wall portion in a solenoid, a sensor and the like.
【０００２】[0002]
従来、ソレノイド、センサ等においては、ケースの壁部を貫通するリード線と ケースの壁部との接続部のシール手段として、一例を図３に示すようなゴム状弾 性材料等をもって製作されたグロメットが使用されている。 Conventionally, in a solenoid, a sensor, etc., a rubber-like elastic material or the like as shown in FIG. 3 is used as an example of a sealing means for a connecting portion between a lead wire penetrating the wall of the case and the wall of the case. Grommets are used.
【０００３】 同図のグロメットは、リード線１を挿通される貫通孔３及びケース２の壁部と 係合する環状溝４を備え、ケース２の壁部の内周面に対する環状溝４の底周面の 弾性接触及びケース２の壁部の側面に対する環状溝４の側面の弾性接触によって シール機能をもたらす構造となっている。The grommet shown in FIG. 1 is provided with a through hole 3 through which the lead wire 1 is inserted and an annular groove 4 that engages with the wall of the case 2, and the bottom of the annular groove 4 with respect to the inner peripheral surface of the wall of the case 2. The sealing function is provided by elastic contact of the peripheral surface and elastic contact of the side surface of the annular groove 4 with the side surface of the wall of the case 2.
【０００４】[0004]
上記した従来の技術によるグロメットは、ケース２の壁部の内周面及び側面に 対する環状溝４の底周面及び側面の弾性接触によってシール機能をもたらす構造 となっているので、ケース２の壁部の厚さ及び内径と環状溝４の幅及び底周面の 外径との整合がなければ、完全なシール機能が得られない。 The above-described conventional grommet has a structure in which a sealing function is provided by elastic contact between the bottom peripheral surface and the side surface of the annular groove 4 against the inner peripheral surface and the side surface of the wall portion of the case 2, and thus the wall of the case 2 is formed. If there is no match between the thickness and inner diameter of the portion and the width of the annular groove 4 and the outer diameter of the bottom peripheral surface, a complete sealing function cannot be obtained.
【０００５】 すなわち、環状溝４の幅がケース２の壁部の厚さに比して広い場合には、図４ （ａ）に示すように、環状溝４の側面とケース２の壁部との接触部のシール機能 が低く保たれ、環状溝４の幅がケース２の壁部の厚さに比して狭い場合には、図 ４（ｂ）に示すように、ケース２の壁部の側面が環状溝４の側面を押して変形さ せ、接触部の異常変形によってシール機能の低下を惹起する。That is, when the width of the annular groove 4 is wider than the thickness of the wall portion of the case 2, as shown in FIG. 4A, the side surface of the annular groove 4 and the wall portion of the case 2 are When the sealing function of the contact part of is kept low and the width of the annular groove 4 is narrower than the thickness of the wall part of the case 2, as shown in FIG. The side surface pushes the side surface of the annular groove 4 to deform it, and the abnormal deformation of the contact portion causes the deterioration of the sealing function.
【０００６】 本考案は、ケースの壁部の内周面及び側面と環状溝の底周面及び側面の接触部 における確実なシール機能を容易に得られるグロメットの構造を提示することを 目的とするものである。An object of the present invention is to provide a structure of a grommet that can easily obtain a reliable sealing function at the contact portion between the inner peripheral surface and side surface of the case wall and the bottom peripheral surface and side surface of the annular groove. It is a thing.
【０００７】[0007]
本考案は、上記した従来の技術によるグロメットにおける問題点を考慮して、 ケースの壁部と結合されるグロメットの外周部に形成された環状溝の底周面に外 方へ向った突起を付設するとともに、環状溝の側面の外側に外周面から内方へ向 ったスリットを形成した構造となすものである。 In consideration of the above-mentioned problems in the grommet according to the conventional technique, the present invention provides an outwardly protruding protrusion on the bottom peripheral surface of the annular groove formed on the outer peripheral portion of the grommet that is connected to the wall of the case. In addition, a slit is formed on the outside of the side surface of the annular groove, the slit extending inward from the outer peripheral surface.
【０００８】[0008]
上記した構造を備えた本考案によるグロメットにおいては、環状溝の底周面側 をケースの壁部に締め付けられた際に、環状溝の底周面の突起がケースの壁部の 内周面に押圧されて環状溝の側面を内側へ引き寄せ、スリットに隙間を形成させ ながら、環状溝の側方部分を内方へ傾斜させて壁部の側面に圧接させる。 In the grommet according to the present invention having the above-mentioned structure, when the bottom peripheral surface side of the annular groove is fastened to the wall portion of the case, the projection on the bottom peripheral surface of the annular groove is attached to the inner peripheral surface of the wall portion of the case. When pressed, the side surface of the annular groove is pulled inward, and while forming a gap in the slit, the side portion of the annular groove is inclined inward and pressed against the side surface of the wall portion.
【０００９】[0009]
図１の実施例においては、突起５を環状溝４の底周面に付設されるとともに、 外周面から内方へ向ったスリット６を環状溝４の外側に形成されている。 In the embodiment of FIG. 1, the protrusion 5 is attached to the bottom peripheral surface of the annular groove 4, and the slit 6 directed inward from the outer peripheral surface is formed outside the annular groove 4.
【００１０】 図１のグロメットをケースと結合された際には、図２に示すように、環状溝４ の底周面に付設された突起５がケース２の壁部の内周面に押圧されて環状溝４の 側面を内側へ引き寄せ、環状溝４の側方部分が、スリット６の隙間を広げながら 内方へ傾斜してケース２の壁部の側面に圧接する。When the grommet of FIG. 1 is joined to the case, as shown in FIG. 2, the protrusion 5 attached to the bottom peripheral surface of the annular groove 4 is pressed against the inner peripheral surface of the wall of the case 2. And pulls the side surface of the annular groove 4 inward, and the side portion of the annular groove 4 inclines inward while widening the gap of the slit 6 and presses against the side surface of the wall portion of the case 2.
【００１１】[0011]
本考案によるグロメットが、上記したように、外周部に形成された環状溝の底 周面に外方へ向った突起を付設されるとともに、環状溝の側面の外側に外周面か ら内方へ向ったスリットを形成されていることにより、環状溝の底周面側をケー スの壁部によって締め付けられた際に、環状溝の底周面の突起がケースの壁部の 内周面に押圧されて環状溝の側方の部分を内側へ引き寄せ、スリットの隙間を広 げながら、環状溝の側方部分を傾斜させて壁部の側面に圧接させるので、確実な シール機能がきわめて容易に得られる。 As described above, the grommet according to the present invention is provided with an outwardly protruding projection on the bottom peripheral surface of the annular groove formed on the outer peripheral portion, and from the outer peripheral surface to the inner side on the outer side surface of the annular groove. Due to the formation of the facing slits, when the bottom peripheral surface side of the annular groove is clamped by the wall of the case, the protrusion on the bottom peripheral surface of the annular groove presses the inner peripheral surface of the case wall. As a result, the side part of the annular groove is pulled inward, and while widening the slit gap, the side part of the annular groove is tilted and pressed against the side surface of the wall part, so a reliable sealing function can be obtained very easily. Be done.
【００１２】[0012]
【図１】本考案の実施例の断面図である。FIG. 1 is a sectional view of an embodiment of the present invention.
【図２】同実施例の結合時の状況を示す断面図である。FIG. 2 is a cross-sectional view showing a situation at the time of coupling in the embodiment.
【図３】従来の技術によるグロメットの一例の断面図で
ある。FIG. 3 is a cross-sectional view of an example of a grommet according to the related art.
【図４】同例の結合時の状況を示す断面図である。FIG. 4 is a sectional view showing a situation at the time of coupling in the same example.
１ リード線 ２ ケース ３ 貫通孔 ４ 環状溝 ５ 突起 ６ スリット 1 lead wire 2 case 3 through hole 4 annular groove 5 protrusion 6 slit
Claims (1)
（３）及びケース（２）の壁部と係合する環状溝（４）
を備え、前記環状溝（４）の底周面に、外方へ向った突
起（５）を付設されるとともに、前記環状溝（４）の側
面の外側に、外周面から内方へ向ったスリット（６）を
形成されているグロメット。1. An annular groove (4) for engaging a through hole (3) through which a lead wire (1) is inserted and a wall portion of a case (2).
And a projection (5) directed outwardly is attached to the bottom peripheral surface of the annular groove (4), and outwardly from the side surface of the annular groove (4) directed inward from the outer peripheral surface. Grommet with slits (6) formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8752791U JPH0531034U (en) | 1991-09-30 | 1991-09-30 | Grommet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8752791U JPH0531034U (en) | 1991-09-30 | 1991-09-30 | Grommet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0531034U true JPH0531034U (en) | 1993-04-23 |
Family
ID=13917473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8752791U Pending JPH0531034U (en) | 1991-09-30 | 1991-09-30 | Grommet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0531034U (en) |
-
1991
- 1991-09-30 JP JP8752791U patent/JPH0531034U/en active Pending
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