JP5703533B2 - Solenoid switching valve - Google Patents
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- JP5703533B2 JP5703533B2 JP2011092667A JP2011092667A JP5703533B2 JP 5703533 B2 JP5703533 B2 JP 5703533B2 JP 2011092667 A JP2011092667 A JP 2011092667A JP 2011092667 A JP2011092667 A JP 2011092667A JP 5703533 B2 JP5703533 B2 JP 5703533B2
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Description
本発明は、電磁切換弁に関し、手動操作ピンを低コストで装備できる電磁切換弁の構造の改良に関する。 The present invention relates to an electromagnetic switching valve, and to an improvement in the structure of an electromagnetic switching valve that can be equipped with a manual operation pin at low cost.
従来、この種の電磁切換弁であるソレノイド５０は、図３に示すように固定鉄心５１の一端（図３で右端）に溶接された円筒形状の非磁性リング５２と、前記非磁性リング５２の他端（図３で左端）に溶接された薄肉円筒形でチューブ状のソレノイドガイド５３と、前記ソレノイドガイド５３の他端（図３で左端）に溶接又は一体的に形成されたふた５４と、非磁性リング５２及びソレノイドガイド５３に内接して軸方向に移動可能に内蔵されたプランジャ５５と、を備える。さらに、ふた５４にはプランジャ５５を軸方向に押し圧する押しピン５６が摺動自在に支持されている（例えば、特許文献１参照。）。 Conventionally, a solenoid 50, which is this type of electromagnetic switching valve, includes a cylindrical nonmagnetic ring 52 welded to one end (right end in FIG. 3) of a fixed iron core 51, as shown in FIG. A thin-walled cylindrical tube-shaped solenoid guide 53 welded to the other end (left end in FIG. 3), and a lid 54 welded or integrally formed to the other end (left end in FIG. 3) of the solenoid guide 53; And a plunger 55 that is inscribed in the nonmagnetic ring 52 and the solenoid guide 53 and is movable in the axial direction. Further, a push pin 56 that presses the plunger 55 in the axial direction is slidably supported on the lid 54 (see, for example, Patent Document 1).
しかしながら、特許文献１ではソレノイドガイド５３に溶接で形成されたふた５４が必要になり部品点数が多い。また、溶接工程が必要であり生産性が低い。
本発明は、上記の不具合を解決するためになされたもので、部品点数を最少にして手動による切換操作を容易に行うことができ、構造を簡素化した電磁切換弁を提供することを目的とする。
However, in Patent Document 1, a lid 54 formed by welding on the solenoid guide 53 is required, and the number of parts is large. Moreover, a welding process is required and productivity is low.
The present invention has been made to solve the above problems, and an object of the present invention is to provide an electromagnetic switching valve that can be easily switched manually by minimizing the number of parts and that has a simplified structure. To do.
上記の課題を達成するために本発明は、
弁本体と、
前記弁本体の少なくとも一端面に係合した固定鉄芯と、
前記固定鉄芯の回りに設けられモールドにより一体成形されたコイル部と、
前記コイル部の内周面に摺動自在に嵌挿され一端を小径とし開放したチューブ部材と、
前記チューブ部材の内周面に摺動自在に嵌挿され軸部が前記固定鉄心に摺動自在に支持された可動鉄心と、
前記固定鉄心に装着され前記コイル部の非励磁時に弾発力により前記可動鉄心を軸方向に移動させるばね部材と、
を備えた電磁切換弁において、
前記モールドの端面に取り付けられ該モールドと一体的に前記弁本体に取付けられて前記チューブ部材の側壁面に近接して配置されたプレートと、
前記チューブ部材は前記プレートに係合する側壁面に設けられ該プレートに設けた穴に摺動自在に支持される円筒状の突起部と、
軸部が前記突起部の内周面に摺動自在に嵌挿され該軸部に前記チューブ部材の側壁面に当接する円盤部を有する押し出し部材と、
を有し、
前記押し出し部材を工具等により、前記可動鉄心の側壁面を押し圧して該可動鉄心を軸方向に移動させて非励磁の可動鉄心を移動させることを特徴とする。
In order to achieve the above object, the present invention provides:
A valve body;
A fixed iron core engaged with at least one end surface of the valve body;
A coil portion provided around the fixed iron core and integrally formed with a mold;
A tube member that is slidably inserted into the inner peripheral surface of the coil portion and has one end having a small diameter, and
A movable iron core that is slidably inserted into the inner peripheral surface of the tube member and whose shaft portion is slidably supported by the fixed iron core;
A spring member mounted on the fixed iron core and moving the movable iron core in the axial direction by an elastic force when the coil portion is not excited;
In an electromagnetic switching valve with
A plate attached to an end surface of the mold and attached to the valve body integrally with the mold and disposed in proximity to a side wall surface of the tube member;
The tube member is provided on a side wall surface that engages with the plate, and a cylindrical protrusion that is slidably supported in a hole provided in the plate;
An extruding member having a disc portion that is slidably inserted into the inner peripheral surface of the protruding portion and has a disc portion that abuts against the side wall surface of the tube member;
Have
The pushing member is pressed against the side wall surface of the movable iron core with a tool or the like to move the movable iron core in the axial direction to move the non-excited movable iron core.
本発明は、ソレノイドガイドとふたとを一体に形成するため構造を簡単になるのでコストを低減することができる。 In the present invention, since the solenoid guide and the lid are integrally formed, the structure is simplified, so that the cost can be reduced.
本発明の実施の形態に係る電磁切換弁１０について図面により詳細に説明する。図１は、本発明の実施の形態に係る電磁切換弁１０の概略構造を示す縦断面図である。
図１に示すように、電磁切換弁１０は、基本的には略矩形状の弁本体１１と、前記弁本体１１の両端面に取り付けられ吸引力を発生するソレノイドコイル部１２ａ及び１２ｂと、から構成されている。
An electromagnetic switching valve 10 according to an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal sectional view showing a schematic structure of an electromagnetic switching valve 10 according to an embodiment of the present invention.
As shown in FIG. 1, the electromagnetic switching valve 10 basically includes a substantially rectangular valve body 11 and solenoid coil portions 12 a and 12 b that are attached to both end faces of the valve body 11 and generate a suction force. It is configured.
弁本体１１はボディ１３に穿設されたスプール孔１４にスプール１５が摺動自在に嵌挿されている。ボディ１３の両端面側（図１で左側、右側）には、スプール孔１４の同軸上に位置して該ボディ１３に形成された凹部１１ａ、１１ｂにソレノイドコイル部１２ａ、１２ｂの凸部２９ａ、２９ｂが嵌合し、Ｏリングのシール部材１６によりボディ１３とソレノイドコイル部１２ａ、１２ｂとの間を液密にシールしている。
ボディ１３にはスプール孔１４に接続する圧力供給源（図示しない）に連通する圧力ポート１８、タンク（図示しない）に連通するタンクポート１９ａ,１９ｂが間隔を有してスプール孔１４の軸方向に直交して設けられ、これらのポート１８、１９ａ，１９ｂの間にスプール孔１４に連通し油圧アクチュエータ（図示しない）に接続する流路２０、２１がスプール孔１４の軸方向に直交して設けられ、該タンクポート１９ａ,１９ｂは連通路２２によって連通している。
In the valve body 11, a spool 15 is slidably inserted into a spool hole 14 formed in the body 13. On both end surfaces (the left side and the right side in FIG. 1) of the body 13, the concave portions 11a and 11b formed coaxially with the spool hole 14 and the convex portions 29a of the solenoid coil portions 12a and 12b, 29b is fitted, and the body 13 and the solenoid coil portions 12a, 12b are liquid-tightly sealed by the seal member 16 of the O-ring.
The body 13 has a pressure port 18 communicating with a pressure supply source (not shown) connected to the spool hole 14, and tank ports 19 a, 19 b communicating with a tank (not shown) spaced apart in the axial direction of the spool hole 14. Channels 20 and 21 that are provided orthogonally and communicate with the spool hole 14 and connect to a hydraulic actuator (not shown) between these ports 18, 19 a, and 19 b are provided orthogonally to the axial direction of the spool hole 14. The tank ports 19a and 19b communicate with each other through a communication path 22.
ソレノイドコイル部１２ａ及び１２ｂは同一構成のため、一方のソレノイドコイル１２ａについて説明し、他方のソレノイドコイル部１２ｂついては符号を付して詳細な説明を省略する。
ソレノイドコイル部１２ａは、後述するモールド２８ａに一体成形されたコイル部１７ａと、前記コイル部１７ａの内周面をガイドにして軸方向に薄肉円筒形状で有底を設けたチューブ（チューブ部材）２３ａと、一側が前記チューブ２３ａの内周面に嵌挿され他側が弁本体１１に嵌挿された固定鉄心２６ａと、大径部が前記チューブ２３ａの内周面に摺動自在に嵌挿され軸部２５ａが前記固定鉄心２６ａに摺動自在に支持されたプランジャの機能を有する可動鉄心２４ａと、コイル部１７ａの外周面に嵌挿されたコイルケース２７ａと、樹脂材料により前記コイル部１７ａ及びコイルケース２７ａを一体的に成形したモールド２８ａと、を備える。
Since the solenoid coil portions 12a and 12b have the same configuration, only one solenoid coil 12a will be described, and the other solenoid coil portion 12b will be denoted by reference numerals and detailed description thereof will be omitted.
The solenoid coil portion 12a includes a coil portion 17a formed integrally with a mold 28a, which will be described later, and a tube (tube member) 23a having a thin cylindrical shape in the axial direction with the inner peripheral surface of the coil portion 17a as a guide. A fixed iron core 26a having one side inserted into the inner peripheral surface of the tube 23a and the other side inserted into the valve body 11, and a large diameter portion slidably inserted into the inner peripheral surface of the tube 23a. A movable iron core 24a having a plunger function whose portion 25a is slidably supported by the fixed iron core 26a, a coil case 27a fitted on the outer peripheral surface of the coil portion 17a, and the coil portion 17a and the coil by a resin material. A mold 28a formed integrally with the case 27a.
チューブ２３ａの内周面には肉厚の円筒形の固定鉄心２６ａが嵌挿されており、該固定鉄心２６ａの凸部２９ａに形成する内周面には段付穴部３０ａが削成されている。段付穴部３０ａの小径部３１ａにはばね部材３２ａが装着されている。ばね部材３２ａは一側（図１で左側）が可動鉄心２４ａの軸部２５ａの外周部に遊挿されると共に、一端（図１で左端）が小径部３１ａの端面に係合し、他側（図１で右側）が軸部２５ａに略同径でスプール１５のガイド部３３ａの外周部に遊挿されると共に、他端（図１で右端）が大径部３４ａに内装されたリテーナ３５ａの端面に係合している。
参照符号３６ａは大径部３４ａ嵌挿されたスペーサを示し、弁本体１１の凹部１１ａとソレノイドコイル部１２ａの凸部２９ａとが密に係合するように、凹部１１ａ及び凸部２９ａの長さを調整する機能を有する。
A thick cylindrical fixed iron core 26a is fitted on the inner peripheral surface of the tube 23a, and a stepped hole 30a is formed on the inner peripheral surface formed on the convex portion 29a of the fixed iron core 26a. Yes. A spring member 32a is attached to the small diameter portion 31a of the stepped hole portion 30a. One side (the left side in FIG. 1) of the spring member 32a is loosely inserted into the outer peripheral portion of the shaft portion 25a of the movable iron core 24a, and one end (the left end in FIG. 1) engages with the end surface of the small diameter portion 31a. The end face of the retainer 35a, whose right side in FIG. 1 is loosely inserted into the outer peripheral portion of the guide portion 33a of the spool 15 and has the same diameter as the shaft portion 25a, and whose other end (right end in FIG. 1) is housed in the large diameter portion 34a. Is engaged.
Reference numeral 36a denotes a spacer inserted into the large-diameter portion 34a, and the lengths of the concave portion 11a and the convex portion 29a so that the concave portion 11a of the valve body 11 and the convex portion 29a of the solenoid coil portion 12a are closely engaged. It has a function to adjust.
図２はチューブ部材２３ａの要部拡大詳細図である。図２においてチューブ部材２３ａは、側壁面（図２で左側面）に肉厚がチューブ部材２３ａの肉厚に略同じの円筒状の突起部３９ａがプレート３７ａに軸心方向に設けた穴４１ａに遊挿されている。
突起部３９ａの内周面には可動鉄心２４ａの側壁面（図２で左側壁面）を押し圧する押し出しピン（押し出し部材）４２ａが形成されており、該押し出しピン４２ａには突起部３９ａに摺動自在に支持された軸部４３ａと、可動鉄心２４ａの側壁面（図２で左側壁面）を押し圧する円盤（円盤部）４４ａと、を備える。円盤４４ａは可動鉄心２４ａの側壁面に当接する面積を大きくして該側壁面に対する押し圧力を小さくしている。
なお、参照符号４０は押し出しピン４２ａの外周面に装着されたシール部材であるＯリングである。
FIG. 2 is an enlarged detail view of a main part of the tube member 23a. In FIG. 2, the tube member 23a has a cylindrical protrusion 39a on the side wall surface (left side surface in FIG. 2) that is substantially the same as the wall thickness of the tube member 23a in a hole 41a provided in the axial direction on the plate 37a. It is loosely inserted.
An extrusion pin (extruding member) 42a for pressing the side wall surface (left wall surface in FIG. 2) of the movable iron core 24a is formed on the inner peripheral surface of the protruding portion 39a. The protruding pin 42a slides on the protruding portion 39a. The shaft part 43a supported freely, and the disk (disk part) 44a which presses and presses the side wall surface (left wall surface in FIG. 2) of the movable iron core 24a are provided. The disk 44a has a large area in contact with the side wall surface of the movable iron core 24a to reduce the pressing force on the side wall surface.
Reference numeral 40 denotes an O-ring which is a seal member attached to the outer peripheral surface of the push pin 42a.
弁本体１１の左側面、例えば凹部１１ａにソレノイドコイル部１２ａを取り付ける場合について説明する。
先ず、弁本体１１のスプール孔１４にスプール１５を摺動自在に嵌合し、該弁本体１１の凹部１１ａにスペーサ３６ａを装着すると共に、スプール１５のガイド部３３ａにリテーナ３５ａを嵌合しておく。
次いで、図１のようにソレノイドコイル部１２ａを組付けた後に、プランジャ２４ａの軸部２５ａにガイドされたばね部材３２ａの他側をスプール１５のガイド部３３ａに遊挿する共に、ソレノイドコイル部１２ａの凸部２９ａを弁本体１１の凹部１１ａに嵌合する。
The case where the solenoid coil part 12a is attached to the left side surface of the valve main body 11, for example, the recessed part 11a is demonstrated.
First, the spool 15 is slidably fitted into the spool hole 14 of the valve body 11, the spacer 36 a is attached to the recess 11 a of the valve body 11, and the retainer 35 a is fitted to the guide portion 33 a of the spool 15. deep.
Next, after assembling the solenoid coil portion 12a as shown in FIG. 1, the other side of the spring member 32a guided by the shaft portion 25a of the plunger 24a is loosely inserted into the guide portion 33a of the spool 15, and the solenoid coil portion 12a The convex portion 29 a is fitted into the concave portion 11 a of the valve body 11.
この状態で，円板状または矩形状のプレート３７ａをソレノイドコイル部１２ａの背面（図１で左側）に係合した状態で、複数個、例えば４本（図１では２本のみ表示する）の取付ボルト３８ａをプレート３７ａ、ソレノイドコイル部１２ａに遊挿し、該取付ボルト３８ａを弁本体１１に螺着する。
図１に示す電磁切換弁１０においては、チューブ２３ａは固定鉄心２６ａとプレート３７ａとの空間に配置されているが、取付ボルト３８ａの締付力によりプレート３７ａが変形しないように、チューブ２３ａの側壁面（図１で左側面）とプレート３７ａの側壁面（図１で右側面）との間に隙間、例えば０〜０．５ｍｍ程度の隙間を備えることより、チューブ２３が変形しないようにすることができる。
In this state, a plurality of, for example, four (only two are shown in FIG. 1) are displayed with the disk-shaped or rectangular plate 37a engaged with the back surface (left side in FIG. 1) of the solenoid coil portion 12a. The mounting bolt 38a is loosely inserted into the plate 37a and the solenoid coil portion 12a, and the mounting bolt 38a is screwed to the valve body 11.
In the electromagnetic switching valve 10 shown in FIG. 1, the tube 23a is disposed in the space between the fixed iron core 26a and the plate 37a, but the side of the tube 23a is prevented from being deformed by the tightening force of the mounting bolt 38a. By providing a gap, for example, a gap of about 0 to 0.5 mm, between the wall surface (left side surface in FIG. 1) and the side wall surface (right side surface in FIG. 1) of the plate 37a, the tube 23 should not be deformed. Can do.
本発明に係る電磁切換弁１０は、基本的には以上のように構成されているので、非励磁のソレノイドコイル部１２ａを手動により操作するには、押し出しピン４２ａを図示しない工具等により可動鉄心２４ａの側壁面（図１で左側面）を矢印Ｘ方向に押圧すると、可動鉄心２４ａがチューブ２３ａの内周面をガイドにして矢印Ｘ方向に移動を開始する。
可動鉄心２４ａの移動で該可動鉄心２４ａの軸部２５ａの端面（図１で右端）がスプール１５のガイド部３３ａに当接し、スプール１５の端面がリテーナ３５ｂに突き当るので、スプール１５がばね部材３２ｂの弾発力に抗して矢印Ｘ方向に移動する。このため、ソレノイドコイル部１２ｂを構成するプランジャ２３ｂ及びチューブ２３ｂが矢印Ｘ方向の移動により、ソレノイドコイル部１２ａの手動による切換えにより弁本体１１内の流路を切り換えことができる。
Since the electromagnetic switching valve 10 according to the present invention is basically configured as described above, in order to manually operate the non-excited solenoid coil portion 12a, the push pin 42a is moved by a movable iron core with a tool or the like (not shown). When the side wall surface of 24a (the left side surface in FIG. 1) is pressed in the arrow X direction, the movable iron core 24a starts moving in the arrow X direction using the inner peripheral surface of the tube 23a as a guide.
As the movable iron core 24a moves, the end surface (right end in FIG. 1) of the shaft portion 25a of the movable iron core 24a contacts the guide portion 33a of the spool 15, and the end surface of the spool 15 abuts against the retainer 35b. It moves in the direction of arrow X against the resilience of 32b. For this reason, when the plunger 23b and the tube 23b constituting the solenoid coil portion 12b move in the direction of the arrow X, the flow path in the valve body 11 can be switched by manual switching of the solenoid coil portion 12a.
一方、ソレノイドコイル部１２ａを手動による矢印Ｙ方向の切り換えは、工具または棒等によるチューブ２３ａの押圧を止めると、ばね部材３２ｂの弾発力によりスプール１５が矢印Ｙ方向に移動し、該スプール１５の移動によりガイド部３３ａがプランジャ２４ａ
の軸部２５ａに突当たり、プランジャ２４ａを矢印Ｙ方向に移動して弁本体１１内の流路を切り換えことができる。
本発明の実施の形態に係る電磁切換弁１０は弁本体１１の両側面にソレノイドコイル部１２ａ，１２ｂを取り付けた場合について説明したが、弁本体１１の側面にソレノイドコイル部１２ａ，１２ｂのどちらか一方を取り付けた電磁切換弁にしてもよい。
On the other hand, in the manual switching of the solenoid coil portion 12a in the arrow Y direction, when the pressing of the tube 23a by a tool or a rod is stopped, the spool 15 is moved in the arrow Y direction by the elastic force of the spring member 32b. Movement of the guide portion 33a causes the plunger 24a to move.
It is possible to switch the flow path in the valve body 11 by hitting the shaft portion 25a and moving the plunger 24a in the arrow Y direction.
The electromagnetic switching valve 10 according to the embodiment of the present invention has been described with respect to the case where the solenoid coil portions 12a and 12b are attached to both side surfaces of the valve body 11, but either one of the solenoid coil portions 12a and 12b is attached to the side surface of the valve body 11. One of them may be an electromagnetic switching valve.
１０、６０ 電磁切換弁 １１ 弁本体
１２ ソレノイドコイル部 １３ ボディ
１４ スプール孔 １５ スプール
２３ チューブ ２４ 可動鉄心
２５ 軸部 ２６ 固定鉄心
２７ コイルケース ２８ モールド
２９ 凸部 ３０ 段付穴部
３１ 小径部 ３２ ばね部材
３３ ガイド部 ３４ 大径部
３５ リテーナ ３６ スペーサ
３７ プレート ３８ 取付ボルト
３９ 突起部 ４１ 穴
４２ 押し出しピン ４３ 軸部
４４ 円盤
DESCRIPTION OF SYMBOLS 10, 60 Electromagnetic switching valve 11 Valve body 12 Solenoid coil part 13 Body 14 Spool hole 15 Spool 23 Tube 24 Movable iron core 25 Shaft part 26 Fixed iron core 27 Coil case 28 Mold 29 Protrusion part 30 Stepped hole part 31 Small diameter part 32 Spring member 33 Guide part 34 Large diameter part 35 Retainer 36 Spacer 37 Plate 38 Mounting bolt 39 Projection part 41 Hole 42 Extrusion pin 43 Shaft part 44 Disk
Claims (1)
前記弁本体の少なくとも一端面に係合した固定鉄芯と、
前記固定鉄芯の回りに設けられモールドにより一体成形されたコイル部と、
前記コイル部の内周面に摺動自在に嵌挿され一端を小径とし開放したチューブ部材と、
前記チューブ部材の内周面に摺動自在に嵌挿され軸部が前記固定鉄心に摺動自在に支持された可動鉄心と、
前記固定鉄心に装着され前記コイル部の非励磁時に弾発力により前記可動鉄心を軸方向に移動させるばね部材と、
を備えた電磁切換弁において、
前記モールドの端面に取り付けられ該モールドと一体的に前記弁本体に取付けられて前記チューブ部材の側壁面に近接して配置されたプレートと、
前記チューブ部材は前記プレートに係合する側壁面に設けられ該プレートに設けた穴に摺動自在に支持される円筒状の突起部と、
軸部が前記突起部の内周面に摺動自在に嵌挿され該軸部に前記チューブ部材の側壁面に当接する円盤部を有する押し出し部材と、
を有し、
前記押し出し部材を工具等により、前記可動鉄心の側壁面を押し圧して該可動鉄心を軸方向に移動させて非励磁の可動鉄心を移動させることを特徴とする電磁切換弁。 A valve body;
A fixed iron core engaged with at least one end surface of the valve body;
A coil portion provided around the fixed iron core and integrally formed with a mold;
A tube member that is slidably inserted into the inner peripheral surface of the coil portion and has one end having a small diameter, and
A movable iron core that is slidably inserted into the inner peripheral surface of the tube member and whose shaft portion is slidably supported by the fixed iron core;
A spring member mounted on the fixed iron core and moving the movable iron core in the axial direction by an elastic force when the coil portion is not excited;
In an electromagnetic switching valve with
A plate attached to an end surface of the mold and attached to the valve body integrally with the mold and disposed in proximity to a side wall surface of the tube member;
The tube member is provided on a side wall surface that engages with the plate, and a cylindrical protrusion that is slidably supported in a hole provided in the plate;
An extruding member having a disc portion that is slidably inserted into the inner peripheral surface of the protruding portion and has a disc portion that abuts against the side wall surface of the tube member;
Have
An electromagnetic switching valve characterized in that the non-excited movable core is moved by pressing the pushing member against a side wall surface of the movable core with a tool or the like to move the movable core in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011092667A JP5703533B2 (en) | 2011-04-19 | 2011-04-19 | Solenoid switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011092667A JP5703533B2 (en) | 2011-04-19 | 2011-04-19 | Solenoid switching valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2012225406A JP2012225406A (en) | 2012-11-15 |
| JP5703533B2 true JP5703533B2 (en) | 2015-04-22 |
Family
ID=47275801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011092667A Active JP5703533B2 (en) | 2011-04-19 | 2011-04-19 | Solenoid switching valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5703533B2 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4574843A (en) * | 1983-05-26 | 1986-03-11 | Double A Products Co. | Solenoid valve override cartridge |
| JPH0322891Y2 (en) * | 1986-01-22 | 1991-05-20 | ||
| JPH0339664Y2 (en) * | 1986-07-18 | 1991-08-21 | ||
| JPH0525203Y2 (en) * | 1989-01-11 | 1993-06-25 | ||
| JPH0326876U (en) * | 1989-07-26 | 1991-03-19 | ||
| JPH1116721A (en) * | 1997-06-19 | 1999-01-22 | Sanmei Denki Kk | Electromagnet |
| US8186378B2 (en) * | 2008-04-15 | 2012-05-29 | Husco Automotive Holdings, LLC | Filter band for an electrohydraulic valve |
-
2011
- 2011-04-19 JP JP2011092667A patent/JP5703533B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012225406A (en) | 2012-11-15 |
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