JP3538732B2 - Limit switch actuator mechanism - Google Patents
Limit switch actuator mechanismInfo
- Publication number
- JP3538732B2 JP3538732B2 JP33973899A JP33973899A JP3538732B2 JP 3538732 B2 JP3538732 B2 JP 3538732B2 JP 33973899 A JP33973899 A JP 33973899A JP 33973899 A JP33973899 A JP 33973899A JP 3538732 B2 JP3538732 B2 JP 3538732B2
- Authority
- JP
- Japan
- Prior art keywords
- lever
- limit switch
- detection
- roller
- actuator mechanism
- 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
- Mechanisms For Operating Contacts (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明はリミットスイッチの
アクチュエータ機構に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a limit switch actuator mechanism.
【０００２】[0002]
【従来の技術】図７〜図１０を参照して４つの従来例に
ついて説明する。2. Description of the Related Art Four conventional examples will be described with reference to FIGS.
【０００３】（公知第１例）図７は従来型リミットスイ
ッチの第１例である。１はリミットスイッチＡ1の検出
レバーである。このリミットスイッチＡ1は、検出レバ
ー１の先端にローラ２のついたローラレバー型である。
これは図７（ｂ）に示す如く、検出体３が矢印方向に運
動する場合の検出に使用するもので、検出レバー１の軸
芯方向を除いた方向の検出が可能である。FIG. 7 shows a first example of a conventional limit switch. 1 is a detection lever of the limit switch A 1. The limit switch A 1 is of a roller lever type having a detection lever 1 and a roller 2 at the tip.
As shown in FIG. 7B, this is used for detection when the detection body 3 moves in the direction of the arrow, and detection in a direction excluding the axis direction of the detection lever 1 is possible.
【０００４】（公知第２例）図８のＡ2も回転レバー式
のリミットスイッチである。これは可変ローラ・レバー
型である。これはレバー４の長さを任意の長さにして使
えるようにしたものである。即ちレバー４に長溝５が設
けられ、固定具６で長さを調整できるようになってい
る。( Second well-known example) A2 in FIG. 8 is also a rotary lever type limit switch. It is of the variable roller lever type. This is such that the length of the lever 4 can be set to an arbitrary length so that it can be used. That is, a long groove 5 is provided in the lever 4, and the length can be adjusted by the fixture 6.
【０００５】（公知第３例）図９のＡ3はフレキシブル
ロッド型で、これはロッド７がフレキシブルで軸芯方向
を除く方向の検出が可能なリミットスイッチである。[0005] A 3 of the (known third example) FIG 9 is a flexible rod type, which is a limit switch capable direction of the detection with the exception of axial direction rod 7 flexible.
【０００６】（公知第４例）図１０のＡ4はプランジャ
型で、主に軸芯方向の検出ができるようにしたもので、
図１０（ｂ）に示すように、検出体８が矢印方向に運動
するとき、ローラ９に接触すると「オン」となるもので
ある。[0006] A 4 of the (known fourth example) FIG. 10 is a plunger type, intended primarily to allow the axial direction of the detection,
As shown in FIG. 10B, when the detection body 8 moves in the direction of the arrow and comes into contact with the roller 9, the detection body 8 is turned on.
【０００７】以上公知第１例から公知第４例にいたるま
で何れも操作できない又は操作が困難な方向がどの例に
も存在している。即ち軸芯方向検出用は横方向の検出
ができないし、横方向検出用は、軸芯方向の検出がで
きない。これらのリミットスイッチで、検出できない方
向に、力を与えると、リミットスイッチは破損し、再生
不能状態になる。[0007] From the first known example to the fourth known example, there are directions in which any of the examples cannot be operated or is difficult to operate. That is, the detection of the axial direction cannot be performed in the horizontal direction, and the detection of the lateral direction cannot detect the axial direction. If a force is applied in a direction that cannot be detected by these limit switches, the limit switches will be damaged and will not be able to reproduce.
【０００８】[0008]
【発明が解決しようとする課題】従来技術の問題点に鑑
み、同一のリミットスイッチで全方向での検出ができる
ようなリミットスイッチを提供し、リミットスイッチの
検出精度並びに信頼性向上を図ることを目的とする。SUMMARY OF THE INVENTION In view of the problems of the prior art, there is provided a limit switch capable of detecting in all directions with the same limit switch, thereby improving detection accuracy and reliability of the limit switch. Aim.
【０００９】[0009]
【課題を解決するための手段】リミットスイッチ接点
部に対し、一端を回転自在に支持された第１のレバー
と、このレバーの他端上に回転自在に支持された第２の
レバーを設け、第１のレバーと第２のレバー間に所定の
相対角度をもった自由位置を保持できるばねを装着し、
検出体の動きが上下方向、左右方向の各れの方向から近
接しても、又は離れても、１つのリミットスイッチでこ
れらすべてを検出可能にした。
前記において、第２のレバーの頂部に第３のレバー
を回転自在に取付け、第２のレバーと第３のレバー間に
所定の相対角度を保持するばねを装着した。A first lever rotatably supported at one end and a second lever rotatably supported on the other end of the lever are provided for the limit switch contact portion. A spring capable of holding a free position having a predetermined relative angle between the first lever and the second lever,
Even if the movement of the detection object approaches or separates from each of the vertical direction and the horizontal direction, all of them can be detected by one limit switch. In the above, the third lever is rotatably mounted on the top of the second lever, and a spring for maintaining a predetermined relative angle between the second lever and the third lever is mounted.
【００１０】[0010]
【発明の実施の形態】図１に基いて説明する。図１で１
０はリミットスイッチ接点部、即ち電気信号への変換部
である。接点部１０の頭部に下端を回転可能に支持され
た第１レバー１１と第２レバー１２よりなる２節レバー
が取付けられている。第１レバー１１は下端で接点部１
０の頭部に支点１３で回転可能に支持され、第１レバー
１１と第２レバー１２は支点１４で、さらに第２レバー
１２の頂部にはローラ１５が回転可能に取付けられてい
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1 in FIG.
Numeral 0 denotes a limit switch contact portion, that is, a conversion portion to an electric signal. A two-node lever composed of a first lever 11 and a second lever 12 whose lower ends are rotatably supported on the head of the contact portion 10 is attached. The first lever 11 has a contact portion 1 at a lower end.
The first lever 11 and the second lever 12 are rotatably supported by a fulcrum 13 at the head of the head 0, and a roller 15 is rotatably mounted on the top of the second lever 12.
【００１１】１６は第１レバー１１と第２レバー１２と
の間に設けたばねである。なおローラ１５は必ずしも必
要とするものではなく、なくてもリミットスイッチは機
能する。図１で、Ｘは第１レバー１１の自由位置、Ｙ1
とＹ2は動作位置で、第１レバー１１はこの間を上下に
揺動する。Reference numeral 16 denotes a spring provided between the first lever 11 and the second lever 12. Note that the roller 15 is not always necessary, and the limit switch functions without it. In FIG. 1, X is the free position of the first lever 11, Y 1
And Y 2 are operating positions, and the first lever 11 swings up and down between them.
【００１２】図２と図３を参照して作用を説明する。図
２で検出体１７が矢印方向（右側）に移動し、検出体１
７の先端１７ａがローラ１５に当り、ローラ１５を介し
第２レバー１２を押し下げる。すると第１レバー１１も
押し下げられ、同時に支点１３のまわりに回動し、検出
体１７の動きも検出する。The operation will be described with reference to FIGS. In FIG. 2, the detector 17 moves in the direction of the arrow (right side), and the detector 1
The tip 17 a of the roller 7 hits the roller 15 and pushes down the second lever 12 via the roller 15. Then, the first lever 11 is also pushed down, and simultaneously rotates around the fulcrum 13 to detect the movement of the detection body 17.
【００１３】図３は図２と逆方向に検出体１７が移動す
る場合である。検出体の先端１７ａがローラ１５に当る
と、第２レバーを介し第１レバー１１を支点１３のまわ
りに回動させて検出体１７の動きを検出する。FIG. 3 shows a case where the detector 17 moves in a direction opposite to that of FIG. When the tip 17a of the detection body hits the roller 15, the first lever 11 is rotated around the fulcrum 13 via the second lever to detect the movement of the detection body 17.
【００１４】図４は検出体１７が図の垂直方向に移動し
た場合である。この場合は、その運動がローラ１５を介
して第２レバー１２を押し下げる。するとばね１６が圧
縮され、第１レバー１１を下方に押し下げ支点１３のま
わりに第１レバー１１を回転させて、リミットスイッチ
接点部１０を作動させる。FIG. 4 shows a case where the detector 17 moves in the vertical direction in the figure. In this case, the movement pushes down the second lever 12 via the roller 15. Then, the spring 16 is compressed, and the first lever 11 is pushed down to rotate the first lever 11 around the fulcrum 13 to activate the limit switch contact portion 10.
【００１５】図５は検出体１７が図４と逆に上向きの場
合である。この場合には、第２レバー１２の先端に設け
たローラ１５の下端に検出体１７が当る。するとばね１
６が伸び、第２レバー１２を介して第１レバー１１が支
点１３のまわりに回転し検出が行なわれる。なおリミッ
トスイッチ接点部１０の検出は、第１レバー１１が支点
１３のまわりにある角度以上回転することにより行われ
る構成となっている。FIG. 5 shows a case where the detection body 17 is facing upward, contrary to FIG. In this case, the detector 17 contacts the lower end of the roller 15 provided at the tip of the second lever 12. Then spring 1
6, the first lever 11 rotates about the fulcrum 13 via the second lever 12, and detection is performed. The detection of the limit switch contact portion 10 is performed by rotating the first lever 11 around the fulcrum 13 by a certain angle or more.
【００１６】図６は本発明の応用例で、第１レバー１
１，第２レバー１２，第３レバー１９の３本を回転支点
１３，１４及び１８で接続したもの、即ち３節方式のも
のである。又ばね１６が第１レバー１１と第２レバー１
２の間に、ばね１６´が第２レバー１２と第３レバー１
９の間に装着されている。FIG. 6 shows an application example of the present invention.
This is a three-bar system in which three first, second and third levers 12 and 19 are connected by rotating fulcrums 13, 14 and 18. Also, the spring 16 has the first lever 11 and the second lever 1
Between the second lever 12 and the third lever 1
9 is installed.
【００１７】この構成であるからリミットスイッチ接点
部１０とローラ１５間との距離が離れていても、検出体
１７の横水平移動はもとより、上下垂直方向の運動に対
しても対処できる構成となっている。With this configuration, even if the distance between the limit switch contact portion 10 and the roller 15 is large, the configuration can cope with not only horizontal and horizontal movement of the detector 17 but also vertical and vertical movement. ing.
【００１８】[0018]
【発明の効果】請求項１により、２節レバーを用いた
ので、１つのリミットスイッチで軸芯方向の検出と、横
方向の検出の何れも検出可能となり、検出体の揺動やズ
レに対して、影響を受けず確実な検出ができるようにな
った。
請求項２により、３節レバー方式にしたので、リミッ
トスイッチ接点部１０と検出体との間の距離がより離れ
ていても、容易にその上下又は水平方向の検出が可能と
なった。According to the first aspect of the present invention, since the two-bar lever is used, both the detection in the axial direction and the detection in the lateral direction can be detected by one limit switch. As a result, reliable detection can be performed without being affected. According to claim 2, since the three-bar lever system is used, even if the distance between the limit switch contact portion 10 and the detection body is farther, detection in the vertical or horizontal direction can be easily performed.
【図１】本発明の機構説明図。FIG. 1 is an explanatory view of a mechanism of the present invention.
【図２】本発明の作動説明図で、検出体の運動が右方向
の場合。FIG. 2 is an explanatory view of the operation of the present invention, in which the motion of the detection object is in the right direction.
【図３】本発明の作動説明図で、検出体の運動が左方向
の場合。FIG. 3 is an explanatory view of the operation of the present invention, in which the motion of the detection object is in the left direction.
【図４】本発明の作動説明図で、検出体の運動が下向方
向の場合。FIG. 4 is an explanatory view of the operation of the present invention, in the case where the motion of the detection body is in a downward direction.
【図５】本発明の作動説明図で、検出体の運動が上向方
向の場合。FIG. 5 is an explanatory view of the operation of the present invention, in which the motion of the detection object is in the upward direction.
【図６】本発明の作動説明図で、３節方式の場合を示
す。FIG. 6 is an operation explanatory view of the present invention, showing a case of a three-bar system.
【図７】公知リミットスイッチ。FIG. 7 shows a known limit switch.
【図８】同じく調節可能型のスイッチ。FIG. 8 is also an adjustable switch.
【図９】フレキシブル方式の場合のリミットスイッチ。FIG. 9 shows a limit switch for a flexible system.
【図１０】上下移動方向方式のリミットスイッチ。FIG. 10 is a vertical movement direction type limit switch.
10 リミットスイッチ接点部 11 第１レバー 12 第２レバー 13・14・18 支点 15 ローラ 16・16' ばね 17 検出体 19 第３レバー 10 Contact point of limit switch 11 1st lever 12 2nd lever 13 ・ 14 ・ 18 fulcrum 15 Roller 16 ・ 16 'Spring 17 Detector 19 Third lever
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭56−13623（ＪＰ，Ａ) 実開 昭58−44728（ＪＰ，Ｕ) 実開 昭61−112537（ＪＰ，Ｕ) 実開 昭60−59329（ＪＰ，Ｕ) 実開 昭55−162825（ＪＰ，Ｕ) 実開 昭55−9031（ＪＰ，Ｕ) 実開 昭63−182430（ＪＰ，Ｕ) 特公 昭45−13697（ＪＰ，Ｂ１) (58)調査した分野(Int.Cl.7，ＤＢ名) H01H 21/28 H01H 3/16 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-56-13623 (JP, A) JP-A-58-44728 (JP, U) JP-A-61-112537 (JP, U) JP-A-60-160 59329 (JP, U) Japanese Utility Model Showa 55-162825 (JP, U) Japanese Utility Model Utility Model Showa 55-9301 (JP, U) Japanese Utility Model Utility Model Utility Model 63-182430 (JP, U) Japanese Patent Publication 45-13697 (JP, B1) (58) Field surveyed (Int. Cl. 7 , DB name) H01H 21/28 H01H 3/16
Claims (2)
回転自在に支持された第１のレバーと、このレバーの他
端上に回転自在に支持された第２のレバーを設け、第１
のレバーと第２のレバー間に所定の相対角度をもった自
由位置を保持できるばねを装着し、検出体の動きが上下
方向、左右方向の各れの方向から近接しても、又は離れ
ても、１つのリミットスイッチでこれらすべてを検出可
能にしたリミットスイッチのアクチュエータ機構。A first lever rotatably supported at one end of the limit switch contact portion and a second lever rotatably supported at the other end of the lever;
A spring capable of holding a free position having a predetermined relative angle between the lever and the second lever is mounted, and the detection body moves close to or away from the vertical direction, the horizontal direction, or away from each other. Also, a limit switch actuator mechanism that makes it possible to detect all of them with one limit switch.
転自在に取付け、第２のレバーと第３のレバーとの間に
所定の相対角度を保持できるばねを装着した請求項１記
載のリミットスイッチのアクチュエータ機構。2. The apparatus according to claim 1, wherein a third lever is rotatably mounted on the top of the second lever, and a spring capable of maintaining a predetermined relative angle is provided between the second lever and the third lever. Limit switch actuator mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33973899A JP3538732B2 (en) | 1999-11-30 | 1999-11-30 | Limit switch actuator mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33973899A JP3538732B2 (en) | 1999-11-30 | 1999-11-30 | Limit switch actuator mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001155589A JP2001155589A (en) | 2001-06-08 |
| JP3538732B2 true JP3538732B2 (en) | 2004-06-14 |
Family
ID=18330346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33973899A Expired - Fee Related JP3538732B2 (en) | 1999-11-30 | 1999-11-30 | Limit switch actuator mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3538732B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101708980B1 (en) * | 2014-12-23 | 2017-02-21 | 주식회사 포스코 | Preventing damage apparatus of lever |
| CN112249911B (en) * | 2020-11-13 | 2023-03-21 | 新兴铸管股份有限公司 | Bridge crane trolley stroke limiting invisible protection device |
-
1999
- 1999-11-30 JP JP33973899A patent/JP3538732B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001155589A (en) | 2001-06-08 |
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