JP2510539Y2 - Unlocking mechanism - Google Patents
Unlocking mechanismInfo
- Publication number
- JP2510539Y2 JP2510539Y2 JP1990098280U JP9828090U JP2510539Y2 JP 2510539 Y2 JP2510539 Y2 JP 2510539Y2 JP 1990098280 U JP1990098280 U JP 1990098280U JP 9828090 U JP9828090 U JP 9828090U JP 2510539 Y2 JP2510539 Y2 JP 2510539Y2
- Authority
- JP
- Japan
- Prior art keywords
- locking lever
- locking
- lock
- solenoid
- return spring
- 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
- Electrophotography Configuration And Component (AREA)
- Fixing For Electrophotography (AREA)
Description
【考案の詳細な説明】 〔概要〕 カバーなどのロック解除機構に関し、 ソレノイドの動作によらず手動でロックを解除するこ
とを目的とし、 係止片を有する結合軸と、前記係止片に対向し結合軸
をロックする第１の位置と該係止片に対向しない結合軸
の第２の位置との間で回動する係止レバーと、該係止レ
バーを前記第１の位置に付勢する復帰ばねと、前記係止
レバーに連結され、通電により前記復帰ばねのばね力に
抗して係止レバーを第２の位置に回動し、非通電により
復帰ばねのばね力によって係止レバーを第１の位置に回
動するソレノイドと、前記係止レバーに係合する突起を
有し、回動可能なロック解除棒とからなり、前記ソレノ
イドが非通電状態のときに該ロック解除棒を回動するこ
とによって復帰ばねのばね力に抗して前記突起が係止レ
バーを第１の位置から第２の位置へ回動するように構成
する。DETAILED DESCRIPTION OF THE INVENTION [Outline] Regarding a lock releasing mechanism such as a cover, a connecting shaft having a locking piece and a locking shaft facing the locking piece are provided for the purpose of manually releasing the lock regardless of the operation of a solenoid. And a locking lever that rotates between a first position that locks the coupling shaft and a second position of the coupling shaft that does not face the locking piece, and urges the locking lever to the first position. And a locking lever that is connected to the locking lever, rotates the locking lever to a second position against the spring force of the reset spring by energization, and deenergizes by the spring force of the returning spring. A solenoid that rotates to a first position, and a rotatable lock release rod that has a protrusion that engages with the locking lever, and that operates when the solenoid is in a non-energized state. By rotating, the projection is resisted against the spring force of the return spring. Configures the locking lever to rotate from the first position to the second position.
本考案はカバーなどのロック解除機構に関する。 The present invention relates to a lock releasing mechanism such as a cover.
例えば、電子写真プリンタなどの画像形成装置におい
て、転写画像を加熱定着する定着器は内部が高温になる
ため、オペレータ保護のためソレノイドと温度スイッチ
を利用したロック機構により定着器のカバーが開けられ
ないようになっている。For example, in an image forming apparatus such as an electrophotographic printer, the inside of a fixing device that heats and fixes a transferred image has a high temperature. Therefore, the cover of the fixing device cannot be opened by a lock mechanism that uses a solenoid and a temperature switch to protect an operator. It is like this.
この定着器内のフラッシュランプを交換する場合、装
置の電源をOFFにして作業するが、電源がOFFの状態では
ソレノイドが動作せずロック解除できないため、手動で
ロック解除することのできるロック解除機構が要望され
ている。When replacing the flash lamp in this fixing device, turn off the power to the device before starting work.However, the solenoid does not work and the lock cannot be unlocked when the power is off, so the lock can be unlocked manually. Is required.
従来は第２図の要部斜視図に示すように、プランジャ
1aを矢印Ａ方向に通電吸引するソレノイド１と、プラン
ジャ1aに中間部をピン1a−１により結合して一端基部の
支軸2a−１をソレノイド１の取付台２の側端から延びる
軸受2aに枢着した係止レバー４とから構成されている。Conventionally, as shown in the perspective view of the main part of FIG.
Solenoid 1 for energizing and sucking 1a in the direction of arrow A is connected to the plunger 1a by a pin 1a-1 at its intermediate portion to form a support shaft 2a-1 at the base of one end into a bearing 2a extending from the side end of the mount 2 of the solenoid 1. It is composed of a locking lever 4 which is pivotally attached.
係止レバー４は、支軸2a-1を支点に矢印Ｂ方向に回動
し、ソレノイド１が通電されていない時、支軸2a-1に挿
通した復帰ばね３、即ち捩じりコイルばねにより復帰方
向に付勢され、係止レバー４の他端（先端）は図示しな
い定着器のカバーに取着された結合軸５の係止片5aが矢
印Ｃ方向に回動し係合ロックする位置に復帰している。The locking lever 4 rotates in the direction of arrow B about the support shaft 2a-1 as a fulcrum, and when the solenoid 1 is not energized, the locking spring 4 is inserted by the support shaft 2a-1 by the torsion coil spring. The other end (tip) of the locking lever 4 is biased in the returning direction, and the locking piece 5a of the coupling shaft 5 attached to the cover of the fixing device (not shown) rotates in the direction of arrow C to engage and lock. Has returned to.
即ち、係止レバー４は通常、カバー（図示略）をロッ
クしており、ロックを解除する場合は、ソレノイド１に
通電しプランジャ1aを吸引して係止レバー４を結合軸５
の係止片5aから外しロックを解除している。That is, the lock lever 4 normally locks the cover (not shown), and when unlocking the lock, the solenoid 1 is energized to attract the plunger 1a to lock the lock lever 4 in the coupling shaft 5.
The lock is released by disengaging it from the locking piece 5a.
しかしながら、このような上記ロック構造によれば、
ロックを解除するのにソレノイドへの通電を必要とし、
装置の電源がOFFの状態ではソレノイドを動作させるこ
とができないことからロック解除ができないといった問
題があった。However, according to the above lock structure,
Energizing the solenoid is required to release the lock,
There was a problem that the lock cannot be released because the solenoid cannot be operated when the power of the device is OFF.
上記問題点に鑑み、本考案はソレノイドの動作によら
ず手動でロックを解除することのできるロック解除機構
を提供することを目的とする。In view of the above problems, it is an object of the present invention to provide a lock release mechanism that can manually release the lock without depending on the operation of the solenoid.
上記目的を達成するために、本考案のロック解除機構
においては、係止片を有する結合軸と、前記係止片に対
向し結合軸をロックする第１の位置と該係止片に対向し
ない結合軸の第２の位置との間で回動する係止レバー
と、該係止レバーを前記第１の位置に付勢する復帰ばね
と、前記係止レバーに連結され、通電により前記復帰ば
ねのばね力に抗して係止レバーを第２の位置に回動し、
非通電により復帰ばねのばね力によって係止レバーを第
１の位置に回動するソレノイドと、前記係止レバーに係
合する突起を有し、回動可能なロック解除棒とからな
り、前記ソレノイドが非通電状態のときに該ロック解除
棒を回動することによって復帰ばねのばね力に抗して前
記突起が係止レバーを第１の位置から第２の位置へ回動
するように構成する。To achieve the above object, in the lock releasing mechanism of the present invention, a coupling shaft having a locking piece, a first position facing the locking piece and locking the coupling shaft, and not facing the locking piece. A locking lever that rotates between the coupling shaft and the second position, a return spring that urges the locking lever to the first position, and a return spring that is connected to the locking lever and is energized. Rotate the locking lever to the second position against the spring force of
The solenoid is configured to rotate the locking lever to the first position by the spring force of the return spring when not energized, and a rotatable lock release rod having a protrusion that engages with the locking lever. When the lock lever is not energized, the protrusion is configured to rotate the locking lever from the first position to the second position against the spring force of the return spring by rotating the lock release rod. .
係止レバーは、ソレノイドへの通電によりロックを解
除し、非通電時はロック状態にあるため、ソレノイドの
駆動回路の障害時や装置電源がOFFのときは、ロック状
態に保持しオペレータや保守者の安全を確保できる。ま
た、この係止レバーに斜面を設け、この斜面に係合する
突起を備えるロック解除棒を枢着することにより、ロッ
ク解除棒を回わしロック位置にある係止レバーの斜面に
突起を係合滑らせると、斜面に直角方向の分力が生じ、
その分力により係止レバーは支点中心に回動しロックを
手動で解除することができる。The locking lever is unlocked when the solenoid is energized and is in the locked state when the solenoid is not energized.Therefore, when the solenoid drive circuit fails or the device power is off, keep it in the locked state and keep the operator or maintenance personnel Can be secured. Further, by providing an inclined surface on this locking lever and pivotally attaching a lock release rod having a projection for engaging with this inclined surface, the lock release rod is rotated to engage the projection with the inclined surface of the locking lever in the locked position. When you slide it, a component force in the direction perpendicular to the slope occurs,
Due to the component force, the locking lever rotates about the fulcrum and the lock can be manually released.
以下図面に示した実施例に基づいて本考案の要旨を詳
細に説明する。Hereinafter, the gist of the present invention will be described in detail with reference to the embodiments shown in the drawings.
第１図の要部斜視図に示すように、ロック解除機構は
従来と同様に、プランジャ11aを矢印Ａ方向に通電吸引
するソレノイド11と、プランジャ11aに中間部をピン11a
-1により結合して一端基部の支軸12a-1を支点に矢印Ｂ
方向に回動（揺動）し、支軸12a-1に挿通した復帰ばね
（捩じりコイルばね）13により他端（先端）がロック位
置、即ち図示しない定着器のカバーに取着された結合軸
15の係止片15aが矢印Ｃ方向に回動し係合ロックする位
置に復帰する係止レバー14とで構成する。As shown in the perspective view of the main part of FIG. 1, the lock release mechanism has a solenoid 11 for electrically energizing and suctioning the plunger 11a in the direction of arrow A, and a pin 11a at the intermediate portion of the plunger 11a, as in the conventional case.
Connected by -1 and the arrow B with the support shaft 12a-1 at one end as the fulcrum
The other end (tip) is attached to the cover of the fixing device (not shown) by the return spring (torsion coil spring) 13 which is rotated (swinged) in the direction and inserted into the support shaft 12a-1. Bond axis
The locking piece 15a of 15 rotates in the direction of the arrow C and returns to the position where it is engaged and locked.
そして更に、係止レバー14の他端に半径方向に対し傾
斜する斜面14aを設け、この斜面14aに係合する突起16a
を一端に備えるロック解除棒16をソレノイド11の取付台
12の側端から延びる軸受12bに枢着する。また、ロック
解除棒16は自由に回らないように、軸受12bに固設した
ばね板17が押接する平坦面16bを外周に形成し、他端面
にドライバー18で強制的に矢印Ｄ方向に回すための溝16
cを備える。Further, the other end of the locking lever 14 is provided with an inclined surface 14a inclined with respect to the radial direction, and a projection 16a engaging with this inclined surface 14a.
With a lock release rod 16 at one end
It is pivotally attached to a bearing 12b extending from the side end of 12. Further, in order to prevent the unlocking rod 16 from freely rotating, a flat surface 16b against which the spring plate 17 fixed to the bearing 12b is pressed is formed on the outer periphery, and the other end surface is forcibly rotated by the driver 18 in the direction of arrow D. Groove 16
with c.
このように、係止レバーの先端に斜面を備え、斜面に
係合する突起を備えるロック解除棒を枢着することによ
り、ソレノイドに通電不可の状態でも、ロック解除棒を
ドライバーで手回わしロック位置にある係止レバーの斜
面に突起を係合滑らせ係止レバーを支点中心に回動しロ
ックを手動で解除することができる。また、ロック機構
が装置の奥まった手の入らない場所にあっても、ドライ
バーのように棒状の工具でロック解除ができるため装置
の電源がOFF状態でも容易にロック解除できる。また、
このロック解除機構は従来のロック機構の中に一体的に
組み込めてコンパクトにユニット化することができる。In this way, by pivotally attaching the lock release rod that has the sloped surface at the tip of the locking lever and the protrusion that engages with the sloped surface, the lock release rod can be manually rotated with a screwdriver even when the solenoid cannot be energized. The lock can be manually released by sliding the protrusion on the inclined surface of the locking lever in the position and rotating the locking lever about the fulcrum. In addition, even if the lock mechanism is inside the device and out of reach, it can be unlocked easily with a rod-shaped tool like a screwdriver even when the device power is off. Also,
This unlocking mechanism can be integrated into a conventional locking mechanism to be a compact unit.
〔考案の効果〕 以上、詳述したように本考案によれば、ソレノイドの
動作によらず手動でロックを解除することができるた
め、電子写真プリンタの定着器のロック機構に適用し、
装置電源を落としても容易にロック解除できるといった
実用上極めて有用な効果を発揮する。[Advantages of the Invention] As described in detail above, according to the present invention, since the lock can be manually released without the operation of the solenoid, it is applied to the lock mechanism of the fixing device of the electrophotographic printer,
It has an extremely useful practical effect in that it can be easily unlocked even when the power of the device is turned off.
【図面の簡単な説明】 第１図は本考案による一実施例の要部斜視図、 第２図は従来技術による要部斜視図である。 図において、 11はソレノイド、11aはプランジャ、13は復帰ばね（捩
じりコイルばね）、16はロック解除棒、16aは突起、14
は係止レバー、14aは斜面、をそれぞれ示す。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an essential part of an embodiment according to the present invention, and FIG. 2 is a perspective view of an essential part according to the prior art. In the figure, 11 is a solenoid, 11a is a plunger, 13 is a return spring (torsion coil spring), 16 is an unlocking rod, 16a is a protrusion, and 14a is a protrusion.
Indicates a locking lever, and 14a indicates a slope.
Claims (1)
係止片に対向しない結合軸の第２の位置との間で回動す
る係止レバー、 該係止レバーを前記第１の位置に付勢する復帰ばね、 前記係止レバーに連結され、通電により前記復帰ばねの
ばね力に抗して係止レバーを第２の位置に回動し、非通
電により復帰ばねのばね力によって係止レバーを第１の
位置に回動するソレノイド、 前記係止レバーに係合する突起を有し、回動可能なロッ
ク解除棒、 からなり、 前記ソレノイドが非通電状態のときに該ロック解除棒を
回動することによって復帰ばねのばね力に抗して前記突
起が係止レバーを第１の位置から第２の位置へ回動する
ことを特徴とするロック解除機構。1. A coupling shaft having a locking piece, rotating between a first position facing the locking piece and locking the coupling shaft, and a second position of the coupling shaft not facing the locking piece. Locking lever, a return spring for urging the locking lever to the first position, the locking lever connected to the locking lever, and resisting the spring force of the return spring by energization to move the locking lever to the second position. From the solenoid that rotates to the first position by the spring force of the return spring when deenergized, and the rotatable lock release bar that has a protrusion that engages with the locking lever. When the solenoid is in the non-energized state, by rotating the lock release rod, the protrusion rotates the locking lever from the first position to the second position against the spring force of the return spring. An unlocking mechanism characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990098280U JP2510539Y2 (en) | 1990-09-18 | 1990-09-18 | Unlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990098280U JP2510539Y2 (en) | 1990-09-18 | 1990-09-18 | Unlocking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0455972U JPH0455972U (en) | 1992-05-13 |
| JP2510539Y2 true JP2510539Y2 (en) | 1996-09-11 |
Family
ID=31839336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990098280U Expired - Fee Related JP2510539Y2 (en) | 1990-09-18 | 1990-09-18 | Unlocking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2510539Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7289673B2 (en) * | 2019-03-06 | 2023-06-12 | キヤノン株式会社 | image forming device |
| JP2023065728A (en) * | 2021-10-28 | 2023-05-15 | ブラザー工業株式会社 | Foil transfer device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS615964U (en) * | 1984-06-15 | 1986-01-14 | 株式会社 伊藤喜工作所 | Door locking device for furniture |
-
1990
- 1990-09-18 JP JP1990098280U patent/JP2510539Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0455972U (en) | 1992-05-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |