JPH08171836A - Cover opening and closing detecting apparatus - Google Patents
Cover opening and closing detecting apparatusInfo
- Publication number
- JPH08171836A JPH08171836A JP31705994A JP31705994A JPH08171836A JP H08171836 A JPH08171836 A JP H08171836A JP 31705994 A JP31705994 A JP 31705994A JP 31705994 A JP31705994 A JP 31705994A JP H08171836 A JPH08171836 A JP H08171836A
- Authority
- JP
- Japan
- Prior art keywords
- cover
- closing
- switching
- opening
- detection switch
- 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
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電子写真複写機やプリ
ンタ等のカバーの開閉を検出するカバー開閉検出装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover opening / closing detecting device for detecting opening / closing of a cover of an electrophotographic copying machine, a printer or the like.
【０００２】[0002]
【従来の技術】例えば、電子写真複写機では、その取扱
い安全を考慮して機器本体に開閉可能に取付けられたカ
バー（２，３）が完全に閉じていなければ運転できない
ように構成する必要がある。そのため、カバー（２，
３）の開閉を検出するカバー開閉検出装置が設けられて
いる。2. Description of the Related Art For example, in an electrophotographic copying machine, in consideration of its handling safety, it is necessary to construct it so that it cannot be operated unless the covers (2, 3) that are openably and closably attached to the apparatus body are completely closed. is there. Therefore, the cover (2
A cover opening / closing detection device for detecting opening / closing of 3) is provided.
【０００３】電子写真複写機に適用されたカバー開閉検
出装置（１０Ｐ）の従来構成を図３に示す。カバー開閉
検出装置（１０Ｐ）は、カバー開閉検出スイッチ（７
Ａ，７Ｂ），係合突起（８Ａ，８Ｂ）を含み、電子写真
複写機の第１および第２のカバー（２，３）の開閉を検
出可能に構成されている。FIG. 3 shows a conventional structure of a cover opening / closing detecting device (10P) applied to an electrophotographic copying machine. The cover opening / closing detection device (10P) includes a cover opening / closing detection switch (7P).
A, 7B) and engaging projections (8A, 8B), and is configured to be able to detect opening / closing of the first and second covers (2, 3) of the electrophotographic copying machine.
【０００４】ここにおいて、第１のカバー（例えば、サ
イドカバー２）は、機器本体１の左側部に開閉回動可能
に装着されており、第２のカバー（例えば、フロンドカ
バー３）は機器本体１の前側部に開閉回動可能に装着さ
れている。各カバー（２，３）は、常態にあっては閉鎖
されており、用紙ジャム処理や内蔵部品の点検・修理・
交換等を行う場合に開放される。Here, the first cover (for example, the side cover 2) is rotatably mounted on the left side of the device body 1, and the second cover (for example, the front cover 3) is for the device body. It is mounted on the front side of 1 so as to be openable and closable. The covers (2, 3) are normally closed, and are used to clear paper jams and check / repair internal parts.
It is opened when exchanging.
【０００５】カバー開閉検出装置１０Ｐの係合突起８Ａ
（８Ｂ）は、カバー２（３）の裏面に設けられており、
カバー開閉検出スイッチ７Ａ（７Ｂ）は機器本体１側に
係合突起８Ａ（８Ｂ）と対応して設けられている。カバ
ー開閉検出スイッチ７Ａ（７Ｂ）は、電子写真複写機全
体を駆動制御する制御装置にリード線等を介して接続さ
れている。Engagement protrusion 8A of the cover opening / closing detection device 10P
(8B) is provided on the back surface of the cover 2 (3),
The cover opening / closing detection switch 7A (7B) is provided on the device body 1 side so as to correspond to the engagement protrusion 8A (8B). The cover opening / closing detection switch 7A (7B) is connected via a lead wire or the like to a control device that drives and controls the entire electrophotographic copying machine.
【０００６】カバー開閉検出装置１０Ｐでは、カバー２
（３）が閉鎖されると，係合突起８Ａ（８Ｂ）が対応す
るカバー開閉検出スイッチ７Ａ（７Ｂ）を押して例えば
ＯＮさせ、カバー２（３）が開放されると係合突起８Ａ
（８Ｂ）がカバー開閉検出スイッチ７Ａ（７Ｂ）から離
れて，当該スイッチ７Ａ（７Ｂ）はＯＦＦ状態となる。
したがって、カバー開閉検出スイッチ７Ａ（７Ｂ）のＯ
Ｎ・ＯＦＦからカバー２（３）の開閉を検出できること
となる。制御装置は、カバー開閉検出スイッチ（７Ａ，
７Ｂ）の双方がＯＮ状態とならない場合には電子写真複
写機の運転を禁止するものとしている。In the cover opening / closing detection device 10P, the cover 2
When (3) is closed, the corresponding cover protrusion 8A (8B) pushes the corresponding cover open / closed detection switch 7A (7B) to turn it on, for example, and when the cover 2 (3) is opened, the corresponding protrusion 8A.
(8B) is separated from the cover opening / closing detection switch 7A (7B), and the switch 7A (7B) is turned off.
Therefore, the cover open / close detection switch 7A (7B) O
The opening / closing of the cover 2 (3) can be detected from N / OFF. The controller is a cover opening / closing detection switch (7A,
7B) is not turned on, the operation of the electrophotographic copying machine is prohibited.
【０００７】[0007]
【発明が解決しようとする課題】ところで、上記電子写
真複写機等では、利用分野をより一層拡大するため、小
型化およびコスト低減化が強く要請されている。ここ
に、カバー開閉検出装置１０Ｐにおいて、２つのカバー
（２，３）の開閉を１つのカバー開閉検出スイッチで検
出できれば，設置スペースの減少およびコスト低減を図
ることができ、当該検出装置１０Ｐが組み込まれる電子
写真複写機等の小型化およびコスト低減化に貢献できる
筈である。In the electrophotographic copying machine and the like, there is a strong demand for downsizing and cost reduction in order to further expand the field of use. Here, in the cover opening / closing detection device 10P, if the opening / closing of the two covers (2, 3) can be detected by one cover opening / closing detection switch, the installation space and cost can be reduced, and the detection device 10P is incorporated. It should be possible to contribute to downsizing and cost reduction of used electrophotographic copying machines.
【０００８】本発明の目的は、上記事情に鑑み、１個の
カバー開閉検出スイッチで２つのカバーの開閉を確実に
検出可能として小型化およびコスト低減化を図ることが
できるカバー開閉検出装置を提供することにある。In view of the above circumstances, an object of the present invention is to provide a cover opening / closing detecting device which can reliably detect the opening / closing of two covers with a single cover opening / closing detection switch, thereby achieving downsizing and cost reduction. To do.
【０００９】[0009]
【課題を解決するための手段】本発明は、本体の異なる
側面に開閉可能に取付けられた第１および第２のカバー
の開閉を検出可能なカバー開閉検出装置において、前記
本体に設けられた１つのカバー開閉検出スイッチと、前
記本体にカバー開閉検出スイッチに対して変位可能に設
けられかつ付勢ばねから作用する付勢力に抗して切替位
置まで変位されることによりカバー開閉検出スイッチの
ＯＮ・ＯＦＦを切替可能に形成された切替部材と、前記
第１のカバーに設けられかつ当該カバーの閉鎖力を利用
して切替部材を押圧可能な第１の作動部材と、前記第２
のカバーに設けられかつ当該カバーの閉鎖力を利用して
第１の作動部材を付勢し当該第１の作動部材の押圧力を
切替部材を切替位置へ変位できるまで増大可能な第２の
作動部材と、を具備したことを特徴とする。SUMMARY OF THE INVENTION The present invention is a cover opening / closing detection device capable of detecting opening / closing of a first cover and a second cover mounted on different side surfaces of a main body so as to be openable / closable. ON / OFF of the cover open / closed detection switch and the cover open / closed detection switch which is provided on the main body so as to be displaceable with respect to the cover open / closed detection switch and is displaced to the switching position against the biasing force applied from the biasing spring. A switching member formed to be switchable to OFF; a first operating member provided on the first cover and capable of pressing the switching member by utilizing a closing force of the cover;
Second operation which is provided on the cover and which can increase the pressing force of the first operating member until the switching member can be displaced to the switching position by urging the first operating member by utilizing the closing force of the cover. And a member.
【００１０】[0010]
【作用】上記構成による本発明では、例えば、第１のカ
バーが開放状態から閉鎖されると、第１の作動部材は当
該カバーの閉鎖力を利用して切替部材を押圧する。次
に、その状態で第２のカバーが閉鎖されると、第２の作
動部材は第２のカバーの閉鎖力を利用して第１の作動部
材を付勢し当該第１の作動部材の切替部材に対する押圧
力を増大させる。つまり、切替部材を付勢手段から作用
する付勢力に抗して切替位置へ変位できるまで第１の作
動部材の押圧力を増大させる。これにより、切替部材
は、切替位置まで変位し，カバー閉鎖検出スイッチのＯ
Ｎ・ＯＦＦを切替える。In the present invention having the above structure, for example, when the first cover is closed from the open state, the first actuating member presses the switching member by utilizing the closing force of the cover. Next, when the second cover is closed in that state, the second actuating member uses the closing force of the second cover to urge the first actuating member to switch the first actuating member. Increase the pressing force on the member. That is, the pressing force of the first actuating member is increased until the switching member can be displaced to the switching position against the biasing force applied from the biasing means. As a result, the switching member is displaced to the switching position, and the cover closing detection switch O
Switch between N and OFF.
【００１１】なお、第１のカバーの閉鎖時に、第２のカ
バーが既に閉鎖されている場合でも、第１の作動部材の
押圧力が第２の作動部材によって増大され，切替部材が
切替位置まで変位されてカバー閉鎖検出スイッチが例え
ばＯＦＦ状態からＯＮ状態へ切替えられる。また、第１
のカバーが既に閉鎖された状態で、第２のカバーを閉鎖
させる場合も、上記した場合と同様に，切替部材が切替
位置まで変位されてカバー閉鎖検出スイッチがＯＦＦ状
態からＯＮ状態へ切替えられる。Even when the second cover is already closed when the first cover is closed, the pressing force of the first operating member is increased by the second operating member and the switching member reaches the switching position. As a result of the displacement, the cover closing detection switch is switched from the OFF state to the ON state. Also, the first
Even when the second cover is closed with the cover already closed, the switching member is displaced to the switching position and the cover closing detection switch is switched from the OFF state to the ON state, as in the case described above.
【００１２】一方、第１および第２のカバーの双方が閉
鎖されない場合には、第１および第２の作動部材によっ
て切替部材を切替位置まで変位させることができず、カ
バー開閉検出スイッチのＯＮ・ＯＦＦは切替わらない。On the other hand, if both the first and second covers are not closed, the switching member cannot be displaced to the switching position by the first and second actuating members, and the cover open / close detection switch is turned on. OFF does not switch.
【００１３】以上より、１つのカバー開閉検出スイッチ
で第１および第２のカバーの開閉状態を検出することが
できる。例えば、上記した如くカバー開閉検出スイッチ
がＯＮ状態にある場合には、第１および第２のカバーが
共に閉鎖されていることとなり、ＯＦＦ状態にある場合
には少くともいずれか一方のカバーが閉鎖されていない
こととなる。As described above, the open / closed state of the first and second covers can be detected by one cover open / closed detection switch. For example, when the cover open / close detection switch is in the ON state as described above, both the first and second covers are closed, and in the OFF state, at least one of the covers is closed. It has not been done.
【００１４】[0014]
【実施例】以下、本発明の実施例を図面を参照して説明
する。本カバー開閉検出装置（１０）は、図１および図
２に示す如く、電子写真複写機の機器本体（１）に組付
けられており、基本的構成は従来例（図３）と同様とさ
れているが、１つのカバー開閉検出スイッチ７と，切替
部材１１と，第１および第２の作動部材（３１，４１）
とを設け、第１および第２のカバー（例えば、サイドカ
バー２，フロントカバー３）を閉鎖した場合に，第１の
作動部材（３１）の切替部材１１に対する押圧力を第２
の作動部材（４１）で増大させて，切替部材１１をカバ
ー開閉検出スイッチのＯＮ・ＯＦＦの切替えを行える位
置（切替位置）まで変位可能に構成されている。なお、
従来例（図３）と共通する構成要素については同一の符
号を付し、その説明を簡略化又は省略する。Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the cover opening / closing detection device (10) is incorporated in the main body (1) of the electrophotographic copying machine, and its basic configuration is the same as that of the conventional example (FIG. 3). However, one cover opening / closing detection switch 7, switching member 11, and first and second actuating members (31, 41)
And the first and second covers (for example, the side cover 2 and the front cover 3) are closed, the pressing force of the first actuating member (31) against the switching member 11 is set to the second value.
The operating member (41) is used to displace the switching member 11 to a position (switching position) where the cover open / close detection switch can be switched ON / OFF. In addition,
The same components as those in the conventional example (FIG. 3) are designated by the same reference numerals, and the description thereof will be simplified or omitted.
【００１５】カバー開閉検出スイッチ７は、図１に示す
如く、機器本体１側に固定された１個のマイクロスイッ
チより形成されている。As shown in FIG. 1, the cover opening / closing detection switch 7 is formed of one micro switch fixed to the equipment body 1 side.
【００１６】また、切替部材１１は、機器本体１にカバ
ー開閉検出スイッチ７に対して変位可能に設けられかつ
付勢ばね２１から作用する付勢力に抗して切替位置（図
１中に実線で示す位置）まで変位されることによりカバ
ー開閉検出スイッチ７のＯＮ・ＯＦＦを切替可能に形成
されている。The switching member 11 is provided in the device body 1 so as to be displaceable with respect to the cover opening / closing detection switch 7 and resists the urging force applied from the urging spring 21 to a switching position (indicated by a solid line in FIG. 1). The cover opening / closing detection switch 7 can be turned on / off by being displaced to the position (shown).
【００１７】この実施例では、切替部材１１は、カバー
開閉検出スイッチ７の近傍の機器本体（１）部分に支点
１２を中心として回動可能に設けられており、その先端
部は付勢ばね２１によって図１中反時計回り方向に付勢
されている。なお、切替部材１１は、第１の作動部材
（３１）から押圧力が加えられない場合には図１中に２
点鎖線で示す位置に位置決め保持されている。In this embodiment, the switching member 11 is rotatably provided around the fulcrum 12 at the portion of the device body (1) near the cover opening / closing detection switch 7, and the tip end portion thereof is the urging spring 21. It is urged in the counterclockwise direction in FIG. The switching member 11 has a structure shown in FIG. 1 when the pressing force is not applied from the first actuating member (31).
It is positioned and held at the position shown by the dotted line.
【００１８】また、第１の作動部材（３１）は、第１の
カバー（２）に設けられ，かつ当該カバー（２）の閉鎖
力を利用して切替部材１１を押圧可能に形成されてい
る。具体的には、第１のカバー（２）の裏面に支軸３３
を介して回転支持され，かつねじりコイルばね３４によ
って無負荷時には図１に示す姿勢に保持される押圧レバ
ー３１から形成されている。なお、ねじりコイルばね３
４のばね力は、付勢ばね２１の付勢力よりも小さくなる
ように形成されている。The first actuating member (31) is provided on the first cover (2) and is formed so as to be able to press the switching member 11 using the closing force of the cover (2). . Specifically, the support shaft 33 is provided on the back surface of the first cover (2).
It is formed by a pressing lever 31 which is rotatably supported via a coil and which is held by a torsion coil spring 34 in the posture shown in FIG. The torsion coil spring 3
The spring force of No. 4 is formed to be smaller than the urging force of the urging spring 21.
【００１９】また、第２の作動部材（４１）は、第２の
カバー（３）に設けられ，かつ当該カバー（３）の閉鎖
力を利用して第１の作動部材（３１）を付勢し、当該第
１の作動部材（３１）の押圧力を，切替部材１１を切替
位置へ変位できるまで増大可能に形成されている。The second actuating member (41) is provided on the second cover (3) and biases the first actuating member (31) by utilizing the closing force of the cover (3). The pressing force of the first actuating member (31) can be increased until the switching member 11 can be displaced to the switching position.
【００２０】より具体的には、第２の作動部材は、第２
のカバー（３）の裏面に突出形成された係合突起４１か
ら形成されている。係合突起４１は、第１のカバー
（２）の閉鎖時に切替部材１１側から押し返された第１
の作動部材（３１）と圧接し，当該作動部材（３１）に
図１中反時計回り方向の回転モーメントを付与可能に設
けられている。第１の作動部材（３１）は、第２の作動
部材（４１）から付与された回転モーメントにより切替
部材１１に対する押圧力が増大され，当該切替部材１１
を切替位置へ変位させることが可能となる。なお、電子
写真複写機全体を駆動制御する制御装置は、カバー開閉
検出スイッチ７がＯＮ状態とならない場合には運転を禁
止するものとしている。More specifically, the second actuating member is the second
Is formed from the engaging protrusion 41 formed on the back surface of the cover (3). The engagement protrusion 41 is pushed back from the switching member 11 side when the first cover (2) is closed.
It is provided so as to be in pressure contact with the operating member (31) of FIG. 1 and to impart a rotational moment in the counterclockwise direction in FIG. 1 to the operating member (31). The first actuating member (31) is increased in pressing force against the switching member 11 by the rotational moment applied from the second actuating member (41),
Can be displaced to the switching position. The control device that controls the drive of the entire electrophotographic copying machine prohibits the operation when the cover open / close detection switch 7 is not turned on.
【００２１】次に、この実施例の作用について説明す
る。第１のカバー（２）が、図２（Ｂ）に示す如く、開
放状態から閉鎖されると、第１の作動部材（３１）は当
該カバー（２）の閉鎖力を利用して切替部材１１を押圧
する。ここにおいて、第１の作動部材（３１）の押圧力
は、切替部材１１に作用する付勢ばね２１の付勢力より
も小さいので、切替部材１１を切替位置へ変位させるこ
とはできず，当該作動部材（３１）は切替部材１１から
の反力で図中実線で示す位置まで押し返される。Next, the operation of this embodiment will be described. As shown in FIG. 2B, when the first cover (2) is closed from the open state, the first operating member (31) uses the closing force of the cover (2) to switch the switching member 11. Press. Here, since the pressing force of the first actuating member (31) is smaller than the biasing force of the biasing spring 21 that acts on the switching member 11, the switching member 11 cannot be displaced to the switching position, and the actuation The member (31) is pushed back by the reaction force from the switching member 11 to the position shown by the solid line in the figure.
【００２２】次に、その状態で第２のカバー（３）が図
２（Ｂ）中で矢印方向へ変位されて閉鎖されると、第２
の作動部材（４１）は第２のカバー（３）の閉鎖力を利
用して第１の作動部材（３１）と圧接し，当該作動部材
（３１）に図１中反時計回り方向の回転モーメントを付
与する。この付与された回転モーメントにより、第１の
作動部材（３１）の切替部材１１に対する押圧力が増大
される。その結果、切替部材１１が切替位置まで変位さ
れ，カバー開閉検出スイッチ７を押してＯＦＦ状態から
ＯＮ状態へ切替える。Next, in this state, when the second cover (3) is displaced in the direction of the arrow in FIG.
The operating member (41) of FIG. 1 is brought into pressure contact with the first operating member (31) by utilizing the closing force of the second cover (3), and the operating member (31) has a rotational moment in the counterclockwise direction in FIG. Is given. The applied rotational moment increases the pressing force of the first actuating member (31) on the switching member 11. As a result, the switching member 11 is displaced to the switching position, and the cover open / close detection switch 7 is pressed to switch from the OFF state to the ON state.
【００２３】なお、図２（Ａ）に示す如く、第１のカバ
ー（２）の閉鎖時に、第２のカバー（３）が既に閉鎖さ
れている場合でも、第１の作動部材（３１）の押圧力が
第２の作動部材（３１）によって増大され，切替部材１
１が切替位置まで変位されてカバー閉鎖検出スイッチ７
がＯＦＦ状態からＯＮ状態へ切替えられる。なお、第１
のカバー（２）が既に閉鎖された状態で、第２のカバー
（３）を閉鎖させる場合も、上記した場合と同様に，切
替部材１１が切替位置まで変位されてカバー閉鎖検出ス
イッチがＯＦＦ状態からＯＮ状態へ切替えられる。As shown in FIG. 2 (A), when the first cover (2) is closed, even if the second cover (3) is already closed, the first actuating member (31) is closed. The pressing force is increased by the second actuating member (31) and the switching member 1
1 is displaced to the switching position and the cover closing detection switch 7
Is switched from the OFF state to the ON state. The first
Even when the second cover (3) is closed with the cover (2) already closed, the switching member 11 is displaced to the switching position and the cover closing detection switch is in the OFF state as in the case described above. To the ON state.
【００２４】一方、第１および第２のカバー（２，３）
の双方が閉鎖されない場合には、第１および第２の作動
部材（３１，４１）によって切替部材１１を切替位置ま
で変位させることができず、カバー開閉検出スイッチ７
のＯＮ・ＯＦＦは切替わらない。On the other hand, the first and second covers (2, 3)
If both are not closed, the switching member 11 cannot be displaced to the switching position by the first and second actuating members (31, 41), and the cover opening / closing detection switch 7
ON / OFF does not switch.
【００２５】すなわち、第１のカバー（２）が閉鎖され
ても第２のカバー（３）が閉鎖されない場合には、第１
の作動部材（３１）の押圧力が不足して切替部材１１を
切替位置まで変位させることができず、カバー開閉検出
スイッチ７のＯＮ・ＯＦＦは切替わらない。また、第２
のカバー（３）が閉鎖されても第１のカバー（２）が閉
鎖されない場合には、切替部材１１を押圧することがで
きず、カバー開閉検出スイッチ７のＯＮ・ＯＦＦは切替
わらない。That is, if the second cover (3) is not closed even if the first cover (2) is closed,
The pressing force of the operating member (31) is insufficient to displace the switching member 11 to the switching position, and the ON / OFF of the cover open / close detection switch 7 is not switched. Also, the second
If the first cover (2) is not closed even if the cover (3) is closed, the switching member 11 cannot be pressed and the ON / OFF of the cover open / close detection switch 7 is not switched.
【００２６】しかして、この実施例によれば、１つのカ
バー開閉検出スイッチ７と，切替部材１１と，第１およ
び第２の作動部材（３１，４１）とを設け、第１および
第２のカバー（２，３）を閉鎖した場合に第１の作動部
材（３１）の切替部材１１に対する押圧力を第２の作動
部材（４１）で増大させて，切替部材１１をカバー開閉
検出スイッチのＯＮ・ＯＦＦの切替えを行える位置（切
替位置）まで変位可能に構成したので、１つのカバー開
閉検出スイッチ７で両カバー（２，３）の開閉を確実に
検出することができ、小型化およびコスト低減を達成で
きる。However, according to this embodiment, one cover opening / closing detection switch 7, the switching member 11, and the first and second actuating members (31, 41) are provided, and the first and second When the covers (2, 3) are closed, the pressing force of the first actuating member (31) against the switching member 11 is increased by the second actuating member (41) so that the switching member 11 is turned on. -Since it can be displaced to a position where it can be switched off (switching position), one cover opening / closing detection switch 7 can reliably detect the opening / closing of both covers (2, 3), which leads to downsizing and cost reduction. Can be achieved.
【００２７】また、第１の作動部材を押圧レバー３１よ
り形成するとともに、第２の作動部材を係合突起４１か
ら形成したので、カバー開閉検出機構１０の構成が一段
と簡素化されることになり、より一層の小型化およびコ
スト低減を図ることができる。Further, since the first operating member is formed by the pressing lever 31 and the second operating member is formed by the engaging protrusion 41, the structure of the cover opening / closing detecting mechanism 10 is further simplified. It is possible to further reduce the size and reduce the cost.
【００２８】[0028]
【発明の効果】本発明によれば、１つのカバー開閉検出
スイッチと，切替部材と，第１および第２の作動部材と
を設け、第１および第２のカバーを閉鎖した場合に第１
の作動部材の切替部材に対する押圧力を第２の作動部材
で増大させて，切替部材をカバー開閉検出スイッチのＯ
Ｎ・ＯＦＦの切替えを行える位置（切替位置）まで変位
可能に構成したので、１つのカバー開閉検出スイッチで
両カバーの開閉を確実に検出することができ、小型化お
よびコスト低減を達成できる。According to the present invention, one cover opening / closing detection switch, a switching member, and first and second actuating members are provided, and when the first and second covers are closed, the first cover is opened.
The pressing force of the operating member on the switching member is increased by the second operating member so that the switching member is set to O of the cover open / close detection switch.
Since it is configured to be displaceable to a position where N / OFF switching can be performed (switching position), opening / closing of both covers can be reliably detected by one cover opening / closing detection switch, and miniaturization and cost reduction can be achieved.
【図１】本発明の実施例を説明するための図である。FIG. 1 is a diagram for explaining an example of the present invention.
【図２】同じく、カバー開閉検出動作を説明するための
図である。FIG. 2 is also a diagram for explaining a cover open / close detection operation.
【図３】カバー開閉検出装置の従来構成を説明するため
の図である。FIG. 3 is a diagram for explaining a conventional configuration of a cover opening / closing detection device.
１ 機器本体（本体） ２ サイドカバー（第１のカバー） ３ フロントカバー（第２のカバー） ７ カバー開閉検出スイッチ １１ 切替部材 ２１ 付勢ばね ３１ 押圧レバー（第１の作動部材） ４１ 係合突起（第２の作動部材） 1 Device Main Body (Main Body) 2 Side Cover (First Cover) 3 Front Cover (Second Cover) 7 Cover Open / Close Detection Switch 11 Switching Member 21 Biasing Spring 31 Pressing Lever (First Operating Member) 41 Engagement Protrusion (Second operating member)
Claims (1)
れた第１および第２のカバーの開閉を検出可能なカバー
開閉検出装置において、 前記本体に設けられた１つのカバー開閉検出スイッチ
と、前記本体にカバー開閉検出スイッチに対して変位可
能に設けられかつ付勢ばねから作用する付勢力に抗して
切替位置まで変位されることによりカバー開閉検出スイ
ッチのＯＮ・ＯＦＦを切替可能に形成された切替部材
と、前記第１のカバーに設けられかつ当該カバーの閉鎖
力を利用して切替部材を押圧可能な第１の作動部材と、
前記第２のカバーに設けられかつ当該カバーの閉鎖力を
利用して第１の作動部材を付勢し当該第１の作動部材の
押圧力を切替部材を切替位置へ変位できるまで増大可能
な第２の作動部材と、を具備したことを特徴とするカバ
ー開閉検出装置。1. A cover opening / closing detection device capable of detecting opening / closing of a first cover and a second cover attached to different side surfaces of a main body so as to be openable / closable, and one cover opening / closing detection switch provided in the main body; The cover opening / closing detection switch is provided displaceably with respect to the cover opening / closing detection switch, and is formed to be switchable between ON and OFF by being displaced to the switching position against the biasing force applied from the biasing spring. A switching member and a first actuating member provided on the first cover and capable of pressing the switching member by utilizing the closing force of the cover;
A second cover provided on the second cover and capable of increasing the pressing force of the first operating member by using the closing force of the cover to urge the first operating member until the switching member can be displaced to the switching position; 2. A cover opening / closing detection device comprising: a second actuating member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31705994A JPH08171836A (en) | 1994-12-20 | 1994-12-20 | Cover opening and closing detecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31705994A JPH08171836A (en) | 1994-12-20 | 1994-12-20 | Cover opening and closing detecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08171836A true JPH08171836A (en) | 1996-07-02 |
Family
ID=18083966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31705994A Pending JPH08171836A (en) | 1994-12-20 | 1994-12-20 | Cover opening and closing detecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08171836A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001006452A1 (en) * | 1999-07-16 | 2001-01-25 | Matsushita Electric Industrial Co., Ltd. | Ic card reader |
| CN100454958C (en) * | 2005-08-30 | 2009-01-21 | 兄弟工业株式会社 | Open/closed state detecting system |
| JP2020197568A (en) * | 2019-05-31 | 2020-12-10 | 株式会社沖データ | Open/close detection device and image forming apparatus |
-
1994
- 1994-12-20 JP JP31705994A patent/JPH08171836A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001006452A1 (en) * | 1999-07-16 | 2001-01-25 | Matsushita Electric Industrial Co., Ltd. | Ic card reader |
| US6702182B1 (en) | 1999-07-16 | 2004-03-09 | Matsushita Electric Industrial Co., Ltd. | IC card reader |
| CN100454958C (en) * | 2005-08-30 | 2009-01-21 | 兄弟工业株式会社 | Open/closed state detecting system |
| JP2020197568A (en) * | 2019-05-31 | 2020-12-10 | 株式会社沖データ | Open/close detection device and image forming apparatus |
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