JP2007091154A - Grommet for antenna - Google Patents

Grommet for antenna Download PDF

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Publication number
JP2007091154A
JP2007091154A JP2005286470A JP2005286470A JP2007091154A JP 2007091154 A JP2007091154 A JP 2007091154A JP 2005286470 A JP2005286470 A JP 2005286470A JP 2005286470 A JP2005286470 A JP 2005286470A JP 2007091154 A JP2007091154 A JP 2007091154A
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antenna
grommet
insertion hole
view
contact portion
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JP2005286470A
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JP4655852B2 (en
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Noriaki Suzuki
則明 鈴木
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Saxa Inc
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Saxa Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To enable one kind of grommet to cope with change of orientation angle of an antenna when it is required. <P>SOLUTION: In the grommet 15 for the antenna, an annular groove 16 is provided over the whole peripheral surface and a first flange 17 and a second flange 18 having thickness formed thinner than the first flange 17 are provided with the annular groove 16 in between. In the grommet 15 for the antenna, the whole body is formed of rubber into an ellipse form in plan view and an insertion hole 21 for inserting the antenna in a thickness direction is provided on one end. Further, the grommet 15 for the antenna is formed left/right symmetric relative to a center line C-C in side view. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、例えば、アンテナを備えた通信機器を覆うハウジングの孔からアンテナを外部に導出するためハウジングの孔に取り付けるアンテナ用グロメットに関するものである。   The present invention relates to an antenna grommet that is attached to a hole of a housing in order to lead the antenna out of the hole of a housing that covers a communication device including the antenna, for example.

従来のグロメットとしては、全周面にわたって環状溝が設けられ、中央部にワイヤーを挿通させる挿通孔を有する全体がゴムによって形成されたものがある(例えば、特許文献1参照)。
特開2005−6359号公報(段落「0003」、図5)
As a conventional grommet, there is one in which an annular groove is provided over the entire peripheral surface, and the whole having an insertion hole through which a wire is inserted in a central portion is formed of rubber (for example, see Patent Document 1).
Japanese Patent Laying-Open No. 2005-6359 (paragraph “0003”, FIG. 5)

上述した従来のグロメットは、平面視において円形に形成され、中央部に挿通孔が設けられた構造を採っている。この従来のグロメットの挿通孔にアンテナを挿通させて使用した場合、アンテナの指向方向(傾斜方向)を変えたいという要求があると、このグロメットだけでは対応できなくなる。すなわち、この場合、アンテナの指向方向に対応させてハウジングに2つの孔を設け、一方の孔に上述した従来のグロメットを取り付け、他方の孔には挿通孔が設けられていないグロメットを取り付ける必要がある。このため、2種類のグロメットが必要になるため製造コストが嵩むという問題があった。   The conventional grommet described above is formed in a circular shape in a plan view and has a structure in which an insertion hole is provided in the center. When the antenna is inserted through the insertion hole of the conventional grommet and used, if there is a request to change the directivity direction (tilt direction) of the antenna, this grommet alone cannot cope. That is, in this case, it is necessary to provide the housing with two holes corresponding to the direction of the antenna, attach the above-described conventional grommet to one hole, and attach a grommet without an insertion hole to the other hole. is there. For this reason, since two types of grommets were needed, there existed a problem that manufacturing cost increased.

本発明は上記した従来の問題に鑑みなされたものであり、その目的とするところは、アンテナの指向角度を変える必要がある場合に1種類のグロメットによって対応可能とするところにある。   The present invention has been made in view of the above-described conventional problems, and an object thereof is to be able to cope with one kind of grommet when it is necessary to change the directivity angle of the antenna.

この目的を達成するために、請求項1に係る発明は、全周面にわたって環状溝が設けられ、厚み方向にアンテナを挿通させる挿通孔を有する全体がゴムによって形成されたアンテナ用グロメットにおいて、全体を平面視において楕円形に形成し、前記挿通孔を一方の端部に設けたものである。   In order to achieve this object, the invention according to claim 1 is a grommet for an antenna in which an annular groove is provided over the entire circumferential surface, and the whole of the antenna grommet having an insertion hole for inserting the antenna in the thickness direction is formed of rubber. Is formed in an elliptical shape in plan view, and the insertion hole is provided at one end.

請求項2に係る発明は、請求項1に係る発明において、前記挿通孔の周縁に外側に向かって中心方向に傾斜する薄肉状でスカート状に形成したアンテナ密着部を設け、このアンテナ密着部の開口部をアンテナの径よりも小さく形成したものである。   According to a second aspect of the present invention, in the first aspect of the invention, a thin-walled and skirt-shaped antenna contact portion inclined in the center direction toward the outside is provided on the periphery of the insertion hole, and the antenna contact portion is The opening is formed smaller than the diameter of the antenna.

請求項1に係る発明によれば、アンテナ用グロメットの取付方向を平面視において180°変えることにより、アンテナを挿通させる挿通孔の位置を変えることができる。したがって、2種類のアンテナの指向方向に対して1種類のグロメットによって対応が可能になるから製造コストが低減される。   According to the first aspect of the present invention, the position of the insertion hole through which the antenna is inserted can be changed by changing the mounting direction of the antenna grommet by 180 ° in plan view. Therefore, since one type of grommet can cope with the directivity directions of two types of antennas, the manufacturing cost is reduced.

請求項2に係る発明によれば、挿通孔にアンテナを挿通させる際に、アンテナ密着部が弾性変形することによって、挿通孔の周縁が破損したり折り返されたりするようなことがない。したがって、アンテナ密着部とアンテナの周面との間が密着するため防水性が損なわれるようなことがない。   According to the second aspect of the present invention, when the antenna is inserted through the insertion hole, the antenna contact portion is elastically deformed, so that the peripheral edge of the insertion hole is not damaged or folded back. Therefore, since the antenna contact portion and the peripheral surface of the antenna are in close contact with each other, the waterproof property is not impaired.

以下、本発明の実施の形態を図に基づいて説明する。図1は本発明に係るアンテナ用グロメットが取り付けられた防水用ハウジングの断面図、図2は同じく防水用ハウジングの外観を示す斜視図、図3は本発明に係るアンテナ用グロメットを底面側から見た斜視図、図4は同じくアンテナ用グロメットを示し、同図(A)は背面図、同図(B)は平面図、同図(C)は側面図、同図(D)は底面図、同図(E)は正面図、図5は図4(D)におけるV-V 線断面図である。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a cross-sectional view of a waterproof housing to which an antenna grommet according to the present invention is attached, FIG. 2 is a perspective view showing the appearance of the waterproof housing, and FIG. 3 is a bottom view of the antenna grommet according to the present invention. FIG. 4 shows an antenna grommet, FIG. 4A is a rear view, FIG. 4B is a plan view, FIG. 4C is a side view, and FIG. 4D is a bottom view. FIG. 5E is a front view, and FIG. 5 is a cross-sectional view taken along the line VV in FIG.

図1に全体を符号1で示す通信機器の両側部には、アンテナ2(一方は図示せず)が設けられており、これらアンテナ2は枢軸2aを回動中心として回動自在に取り付けられている。3は防水用ハウジングであって、通信機器1の背面側と上面側を覆う基台4と、この基台4の開口部を覆うカバー5とによって構成されている。   In FIG. 1, antennas 2 (one not shown) are provided on both sides of a communication apparatus generally designated by reference numeral 1, and these antennas 2 are rotatably attached around a pivot 2a. Yes. Reference numeral 3 denotes a waterproof housing, which includes a base 4 that covers the back side and the top side of the communication device 1 and a cover 5 that covers an opening of the base 4.

基台4は、上下方向に延在する背面板6と、この背面板6の上端部から略直交するように一体に突設された上面板7とによって形成されている。背面板6の上端には、背面板6の面方向に突設された壁掛け用取付片8が設けられており、この壁掛け用取付片8の両端部には、一対の達磨形のフック孔9,9が設けられている。   The base 4 is formed by a back plate 6 extending in the vertical direction and a top plate 7 integrally projecting from the upper end portion of the back plate 6 so as to be substantially orthogonal. At the upper end of the back plate 6, wall-hanging attachment pieces 8 projecting in the surface direction of the back plate 6 are provided, and a pair of brush-shaped hook holes 9 are provided at both ends of the wall-hanging attachment piece 8. , 9 are provided.

上面板7には先端側に向かって傾斜した傾斜部10が設けられているとともに、周縁に下方に向かって突設された袴部11が一体に設けられている。傾斜部10の両端部には、一対の楕円形の取付孔12,12(一方の取付孔12は図示を省略)が設けられている。上記した通信機器1は、両側部のアンテナ2が取付孔12,12を貫通し外部に露呈できるように、防水用ハウジング3の背面板6に取り付けられている。上記した傾斜部10は、図1に示すように、側面視においてアンテナ2の枢軸2aを中心とした円弧を描くような曲面を呈するように形成されている。   The upper surface plate 7 is provided with an inclined portion 10 that is inclined toward the distal end side, and is integrally provided with a flange portion 11 that protrudes downward on the periphery. A pair of elliptical mounting holes 12 and 12 (one mounting hole 12 is not shown) are provided at both ends of the inclined portion 10. The communication device 1 is attached to the back plate 6 of the waterproof housing 3 so that the antennas 2 on both sides can be exposed to the outside through the attachment holes 12 and 12. As shown in FIG. 1, the inclined portion 10 is formed so as to exhibit a curved surface that draws an arc centered on the pivot 2 a of the antenna 2 in a side view.

図3および図4に全体を符号15で示すものは、本発明に係るアンテナ用グロメットであって、全周面にわたって環状溝16が設けられ、この環状溝16を挟んで、第1の鍔17とこの第1の鍔17よりも厚みが薄く形成された第2の鍔18とが設けられている。このアンテナ用グロメット15は、全体をゴムによって平面視において楕円形に形成されており、図4(C)に示すように、側面視において環状溝16が上記した傾斜部10と同じ曲率をもつような円弧状に形成されている。したがって、このアンテナ用グロメット15は側面視において、中心線C−Cを挟んで左右対称となるように形成されている。   3 and 4 is an antenna grommet according to the present invention, which is provided with an annular groove 16 over the entire circumferential surface, and the first flange 17 is sandwiched between the annular grooves 16. And a second collar 18 having a thickness smaller than that of the first collar 17. The antenna grommet 15 is entirely formed of rubber in an oval shape in plan view, and the annular groove 16 has the same curvature as that of the inclined portion 10 in side view as shown in FIG. 4C. It is formed in a circular arc shape. Therefore, the antenna grommet 15 is formed to be bilaterally symmetric with respect to the center line CC in a side view.

このアンテナ用グロメット15の底面には凹部19が設けられており、この凹部19の中央に補強用のリブ20が一体に設けられている。また、このアンテナ用グロメット15の第1の鍔17の平面視における一方の端部には、図4(B)に示すように、厚み方向にアンテナ2を挿通させる挿通孔21が設けられている。この挿通孔21の周縁には、図5に示すように外側に向かって中心方向に傾斜する薄肉状でスカート状に形成したアンテナ密着部22が設けられており、このアンテナ密着部22の開口部22aの内径R1はアンテナ2の外径R2よりも小さく形成されている。   A concave portion 19 is provided on the bottom surface of the antenna grommet 15, and a reinforcing rib 20 is integrally provided at the center of the concave portion 19. Further, as shown in FIG. 4B, an insertion hole 21 through which the antenna 2 is inserted in the thickness direction is provided at one end of the first gutter 17 of the antenna grommet 15 in plan view. . As shown in FIG. 5, an antenna contact portion 22 formed in a thin skirt shape that is inclined in the center direction toward the outside as shown in FIG. 5 is provided at the periphery of the insertion hole 21, and an opening portion of the antenna contact portion 22 is provided. The inner diameter R1 of 22a is formed smaller than the outer diameter R2 of the antenna 2.

このように構成されたアンテナ用グロメット15は、第2の鍔18を弾性変形させながら、環状溝16内にハウジング3の取付孔12の開口縁部を圧入することにより、アンテナ用グロメット15が取付孔12に取り付けられる。この場合、アンテナ用グロメット15を、その挿通孔21が図2中背面板6側(矢印A方向)に位置するように取り付けることによって、図1に実線で示すように、アンテナ2の枢軸2aと挿通孔21とを結ぶ方向が鉛直方向となる。一方、アンテナ用グロメット15を、その挿通孔21が図2中矢印B方向に位置するように取り付けることによって、図1に二点鎖線で示すように、アンテナ2の枢軸2aと挿通孔21を結ぶ方向が、鉛直方向から反時計方向に角度αだけ傾斜した方向を指向する。   The antenna grommet 15 thus configured is attached to the antenna grommet 15 by pressing the opening edge of the mounting hole 12 of the housing 3 into the annular groove 16 while elastically deforming the second flange 18. It is attached to the hole 12. In this case, the antenna grommet 15 is attached so that the insertion hole 21 is located on the back plate 6 side (in the direction of arrow A) in FIG. The direction connecting the insertion hole 21 is the vertical direction. On the other hand, by attaching the antenna grommet 15 so that the insertion hole 21 is positioned in the direction of arrow B in FIG. 2, the pivot 2a of the antenna 2 and the insertion hole 21 are connected as shown by a two-dot chain line in FIG. The direction is directed in a direction inclined by an angle α counterclockwise from the vertical direction.

次に、このように構成されたアンテナ用グロメットを使って、アンテナの指向方向を選択する方法を説明する。先ず、通信機器1を、防水用ハウジング3の背面板6に取り付けた図示を省略したブラケットを介して電柱等に取り付ける場合について説明する。この場合は、通信機器1の周囲に電波の受信と発信の妨げになる障害物が存在しないため、アンテナ2を鉛直方向を指向するように立てる。   Next, a method for selecting the directivity direction of the antenna using the antenna grommet configured as described above will be described. First, a case where the communication device 1 is attached to a utility pole or the like via a bracket (not shown) attached to the back plate 6 of the waterproof housing 3 will be described. In this case, since there is no obstacle around the communication device 1 that interferes with reception and transmission of radio waves, the antenna 2 is set to face in the vertical direction.

すなわち、通信機器1を電柱等に取り付ける以前に、アンテナ2をハウジング3の取付孔12から突出させ、この突出させたアンテナ2にアンテナ用グロメット15の挿通孔21を挿通させる。この場合、挿通孔21の周縁に外側に向かって中心方向に傾斜する薄肉でスカート状に形成され、アンテナ2の外径よりも小さい開口部22aを有するアンテナ密着部22が設けられているため、このアンテナ密着部22が挿通孔21に挿通されるアンテナ2との間の摺接によって、アンテナ2の移動方向に弾性変形する。このため、挿通孔21の周縁が破損したり、折り返されたりするようなことがないから、アンテナ密着部22とアンテナ2の周面との間が密着するので、防水性が損なわれるようなことがない。また、通信機器1の両側部のアンテナ2が異なったアンテナで、外径が異なる場合も同様にアンテナ密着部22の弾性変形により、アンテナ密着部22とアンテナ2の周面との間が密着するので、防水性が損なわれるようなことがない。したがって、アンテナ2が異なる場合にも1種類のアンテナ用グロメット15によって防水が図られる。   That is, before the communication device 1 is attached to a utility pole or the like, the antenna 2 is protruded from the attachment hole 12 of the housing 3, and the insertion hole 21 of the antenna grommet 15 is inserted into the protruded antenna 2. In this case, the antenna contact portion 22 is formed on the peripheral edge of the insertion hole 21 in a thin skirt shape that is inclined toward the center toward the outside, and has an opening 22a that is smaller than the outer diameter of the antenna 2. The antenna contact portion 22 is elastically deformed in the moving direction of the antenna 2 by sliding contact with the antenna 2 inserted through the insertion hole 21. For this reason, since the periphery of the insertion hole 21 is not damaged or folded back, the antenna contact portion 22 and the peripheral surface of the antenna 2 are in close contact with each other, so that the waterproof property is impaired. There is no. Further, when the antennas 2 on both sides of the communication device 1 are different antennas and have different outer diameters, the antenna contact portion 22 and the peripheral surface of the antenna 2 are in close contact with each other due to the elastic deformation of the antenna contact portion 22. Therefore, the waterproof property is not impaired. Therefore, even when the antennas 2 are different, waterproofing is achieved by one type of antenna grommet 15.

アンテナ2に挿通孔21を挿通させたアンテナ用グロメット15を、挿通孔21が図1に実線で示すように、背面板6方向(矢印A方向)に位置するように、ハウジング3の取付孔12に取り付ける。この状態で、上述したようにアンテナ2の枢軸2aと挿通孔21とを結ぶ方向が鉛直方向を指向しているので、アンテナ用グロメット15によってアンテナ2が鉛直方向を指向するように保持される。   The antenna grommet 15 in which the insertion hole 21 is inserted into the antenna 2 is attached to the mounting hole 12 of the housing 3 so that the insertion hole 21 is positioned in the direction of the back plate 6 (arrow A direction) as shown by a solid line in FIG. Attach to. In this state, since the direction connecting the pivot 2a of the antenna 2 and the insertion hole 21 is oriented in the vertical direction as described above, the antenna 2 is held by the antenna grommet 15 so as to be oriented in the vertical direction.

次に、通信機器1を、背面板6の壁掛け用取付片8を介して建物の壁等に取り付ける場合を説明する。このような場合は、背面板6に対接する建物の壁、特に壁内部に鉄筋等の金属が含まれている場合には、金属により電波が影響され、アンテナ2が電波を受信したり発信する際に障害となるため、アンテナ2を建物の壁から離間させる。すなわち、通信機器1を建物の壁等に取り付ける以前に、上述した電柱等に取り付ける場合と同様に、アンテナ2にアンテナ用グロメット15の挿通孔21を挿通させる。   Next, a case where the communication device 1 is attached to a building wall or the like via the wall-mounting attachment piece 8 of the back plate 6 will be described. In such a case, if a metal such as a reinforcing bar is contained in the wall of the building that is in contact with the back plate 6, particularly the inside of the wall, the radio wave is affected by the metal, and the antenna 2 receives or transmits the radio wave. The antenna 2 is separated from the wall of the building. That is, before attaching the communication device 1 to a wall of a building or the like, the insertion hole 21 of the antenna grommet 15 is inserted into the antenna 2 in the same manner as in the case where the communication device 1 is attached to the utility pole or the like.

このようなときは、アンテナ用グロメット15を、挿通孔21が図1中二点鎖線で示すように矢印B方向に位置するようにして、前述した方法と同じ手順でハウジング3の取付孔12に取り付ける。この状態で、上述したようにアンテナ2の枢軸2aと挿通孔21を結ぶ方向が鉛直方向から図中反時計方向に角度αだけ回動した方向を指向しているので、アンテナ用グロメット15によってアンテナ2は、建物の壁から離間するように傾斜した状態で保持される。   In such a case, the antenna grommet 15 is placed in the mounting hole 12 of the housing 3 in the same procedure as described above so that the insertion hole 21 is positioned in the direction of the arrow B as shown by a two-dot chain line in FIG. Install. In this state, as described above, the direction connecting the pivot 2a of the antenna 2 and the insertion hole 21 is oriented in the direction rotated from the vertical direction by the angle α in the counterclockwise direction in the figure. 2 is held in an inclined state so as to be separated from the wall of the building.

このように、1種類のアンテナ用グロメット15によって、アンテナ12の指向方向を選択することができるため、従来のように2種類のグロメットを必要とした場合と比較して製造コストが低減する。   Thus, since the directivity direction of the antenna 12 can be selected by one type of antenna grommet 15, the manufacturing cost is reduced as compared with the case where two types of grommet are required as in the prior art.

本発明に係るアンテナ用グロメットが取り付けられた防水用ハウジングの断面図である。It is sectional drawing of the housing for waterproofing to which the grommet for antennas concerning this invention was attached. 本発明に係るアンテナ用グロメットが取り付けられた防水用ハウジングの外観を示す斜視図である。It is a perspective view which shows the external appearance of the waterproof housing to which the grommet for antennas which concerns on this invention was attached. 本発明に係るアンテナ用グロメットを底面側から見た斜視図である。It is the perspective view which looked at the grommet for antennas concerning the present invention from the bottom side. 本発明に係るアンテナ用グロメットを示し、同図(A)は背面図、同図(B)は平面図、同図(C)は側面図、同図(D)は底面図、同図(E)は正面図である。1 shows a grommet for an antenna according to the present invention, wherein FIG. 1A is a rear view, FIG. 1B is a plan view, FIG. 1C is a side view, FIG. ) Is a front view. 図4(D)におけるV-V 線断面図である。FIG. 5 is a cross-sectional view taken along the line V-V in FIG.

符号の説明Explanation of symbols

1…通信機器、2…アンテナ、2a…枢軸、3…防水用ハウジング、4…基台、5…カバー、6…背面板、7…上面板、10…傾斜部、12…取付孔、15…アンテナ用グロメット、16…環状溝、17…第1の鍔、18…第2の鍔、21…挿通孔、22…アンテナ密着部、22a…開口部。
DESCRIPTION OF SYMBOLS 1 ... Communication apparatus, 2 ... Antenna, 2a ... Pivot, 3 ... Waterproof housing, 4 ... Base, 5 ... Cover, 6 ... Back plate, 7 ... Top plate, 10 ... Inclined part, 12 ... Mounting hole, 15 ... Grommet for antenna, 16 ... annular groove, 17 ... first ridge, 18 ... second ridge, 21 ... insertion hole, 22 ... antenna contact portion, 22a ... opening.

Claims (2)

全周面にわたって環状溝が設けられ、厚み方向にアンテナを挿通させる挿通孔を有する全体がゴムによって形成されたアンテナ用グロメットにおいて、
全体を平面視において楕円形に形成し、前記挿通孔を一方の端部に設けたことを特徴とするアンテナ用グロメット。
In the antenna grommet where an annular groove is provided over the entire circumferential surface and the whole having an insertion hole through which the antenna is inserted in the thickness direction is formed of rubber.
An antenna grommet characterized in that the whole is formed in an oval shape in plan view, and the insertion hole is provided at one end.
請求項1記載のアンテナ用グロメットにおいて、
前記挿通孔の周縁に外側に向かって中心方向に傾斜する薄肉状でスカート状に形成したアンテナ密着部を設け、このアンテナ密着部の開口部をアンテナの径よりも小さく形成したことを特徴とするアンテナ用グロメット。
The antenna grommet according to claim 1,
An antenna contact portion formed in a thin skirt shape that is inclined in the center direction toward the outside is provided at the periphery of the insertion hole, and the opening portion of the antenna contact portion is formed smaller than the diameter of the antenna. Grommet for antenna.
JP2005286470A 2005-09-30 2005-09-30 Antenna grommet Active JP4655852B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109994812A (en) * 2017-12-29 2019-07-09 华为技术有限公司 A kind of rotating device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0177011U (en) * 1987-11-10 1989-05-24
JPH02126406U (en) * 1980-08-02 1990-10-18
JPH06244614A (en) * 1992-12-31 1994-09-02 Richard Hirschmann Gmbh & Co Automobile antenna for high frequency
JPH10144167A (en) * 1996-11-07 1998-05-29 Furukawa Electric Co Ltd:The Grommet
JPH11180136A (en) * 1997-12-24 1999-07-06 Suzuki Motor Corp Air conditioner for vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02126406U (en) * 1980-08-02 1990-10-18
JPH0177011U (en) * 1987-11-10 1989-05-24
JPH06244614A (en) * 1992-12-31 1994-09-02 Richard Hirschmann Gmbh & Co Automobile antenna for high frequency
JPH10144167A (en) * 1996-11-07 1998-05-29 Furukawa Electric Co Ltd:The Grommet
JPH11180136A (en) * 1997-12-24 1999-07-06 Suzuki Motor Corp Air conditioner for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109994812A (en) * 2017-12-29 2019-07-09 华为技术有限公司 A kind of rotating device

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