JP4933395B2 - Switch actuating device, interlock mechanism and image forming apparatus - Google Patents

Description

  The present invention relates to a switch operating device, an interlock switch mechanism, and an image forming apparatus, and more particularly to a configuration for operating an interlock switch.

  One of the switches used for the on / off operation of a power supply or the like is an interlock switch that performs an on / off operation according to an open / close state.

  For example, the interlock switch may be provided in the image forming apparatus.

  As an image forming apparatus, a copying machine, a printer, a facsimile machine, a printing machine, and the like are known, and a part of a wall portion constituting the casing is opened and closed during maintenance such as jam processing, toner replenishment, or replacement of consumables. May be used.

  Inside the housing that has an openable / closable wall, an interlock mechanism is provided to turn off the power of the device when it is opened by an on / off operation by opening / closing the wall. A connected switch is used.

  On the other hand, the image forming apparatus is provided with a plurality of side walls, and maintenance work may be performed by opening or closing any of the side walls. For this reason, the interlock switch mechanism may be provided in a number corresponding to each side wall. However, with such a configuration, the number of switches may increase unnecessarily.

  Conventionally, in order to solve such a problem, a lever that is pushed by a door member that constitutes a side wall and can be moved forward is provided on each of the left and right doors on the left and right of the front, and the lever overlaps each other on the front side. There has been proposed a configuration in which an interlock switch that is provided as a single unit is actuated by a switch actuating member that is pressed when an actuating member provided on the door is entered (for example, Patent Document 1).

  As an interlock switch operating mechanism for a plurality of opening / closing portions, the mutual engagement is released by being pressed by the protrusions provided on each of the two openable / closable covers located on the front side. A pair of pivoting levers are provided, and when they are closed according to a preset closing order, the engagement is released, and one of the pivoting levers can be pivoted when the subsequent cover is closed. There is also a configuration for operating a switch (for example, Patent Document 2).

  By the way, in the configurations disclosed in these patent documents, in any case, all the opening and closing members can be closed by following the opening and closing order of the opening and closing members, and at this time, the interlock switch is turned on. However, if this order is wrong or ignored, the interlock switch cannot be turned on and the cause may not be known.

  Therefore, a configuration that can ignore such a procedure has been proposed (for example, Patent Document 3).

  In Patent Document 3, an opening / closing member is provided in a right angle direction, and further provided with an upper surface member that can be attached when the opening / closing member is opened. And a release member for releasing the blocking of the interlocking member that prevents the interlock switch from being turned on by blocking the swinging of the link member that swings when the door is closed. It is disclosed. In this configuration, when the opening / closing member is opened, the upper surface member is attached so that the release member acts on the blocking member so that the link member can be swung, and the opening / closing member is closed ignoring the closing order. In this case, the switch is turned on by swinging the link member and pressing the actuator of the interlock switch.

  Even if the opening / closing order of the opening / closing members is ignored, the interlock switch can be turned on as a plurality of swingable swings driven in a vertical plane by doors or levers that can be opened / closed or moved in different directions. There has also been proposed a configuration in which a member is provided and one of the swingable members is driven to swing by the other swinging member so that the interlock switch is operated by one swingable member (for example, Patent Documents). 4).

JP 2001-255792 A Patent No. 362960 Japanese Patent No. 3754777 JP-A-4-345175

  In the configuration described in Patent Document 3 in which the interlock switch is turned on by closing both the opening and closing members regardless of the opening and closing order of the opening and closing members, the release member provided on the upper surface member swings the link member. The interlock switch can be turned on for the first time only by releasing the blocking of the blocking member. For this purpose, the upper surface member is essential.

  For this reason, instead of determining the closing order of the opening and closing members, there arises a new problem that a special structural component called the upper surface member is required. That is, the interlock switch is not turned on only by closing the opening / closing member.

  On the other hand, as in Patent Document 3, in the configuration disclosed in Patent Document 4 including a plurality of swingable members that are swingably driven in a vertical plane by doors and levers that can be opened and closed or moved in different directions. It is necessary to prepare an opening / closing member or a moving member having a contact area corresponding to the swing stroke of the swingable member. That is, the opening / closing member or the moving member that is in contact with the swing end of the swingable member has an area corresponding to the swing stroke in the area of the linear contact surface that is formed in the facing contact portion. For this reason, the part of the oscillating member that contacts the oscillating end always comes into contact with the oscillating end at a different surface. There is a possibility that the setting cannot be performed or the swinging may become unstable, which causes a problem that the operation of the interlock switch becomes unstable.

  There is also a possibility that the opening / closing member or the moving member having a portion in contact with the swinging end of the swingable member cannot set the swinging amount defined by the opening / closing amount and the variation of the moving amount.

  On the other hand, when the opening / closing order of the opening / closing members is not determined, it is difficult to confirm which opening / closing member is open when the switch unexpectedly turns off. In other words, when the opening / closing sequence is specified, the on / off operation of the switch can be confirmed by opening / closing the closing member that is closed at the end of the sequence, but when the opening / closing sequence is not specified, There is a problem A that it is necessary to open and close to check whether it is an open / close member, and it takes time to move to the next operation.

  An object of the present invention is to provide a stable interlock switch operation without incurring an increase in the size of the device in view of the problems in the conventional interlock switch operation mechanism, and an open / close member that should be closed is not prepared. It is an object of the present invention to provide a switch operating device, an interlock mechanism, and an image forming apparatus having a configuration capable of easily confirming the open state.

  In order to achieve this object, the present invention has the following configuration.

(1) An apparatus for performing an on / off operation of a switch according to a moving state of a plurality of moving objects,
A first lever member provided to be swingable;
A second lever member having both ends swingably supported around a support shaft supported by the first lever member, and one end of the swing end facing an actuator of the switch;
The first lever capable of contacting the other of the swinging ends of the second lever member and swinging the second lever member toward the actuator of the switch by one of the moving bodies. The working part of
The first lever member is pivoted so as to face the first lever member and bring the second lever member closer to the actuator of the switch when the other one of the moving bodies comes into contact with the first lever member. A second actuating part possible,
A state in which the first lever member causes the second lever member to approach the actuator of the switch by another one of the moving bodies; and a swing end of the second lever member by one of the moving bodies. A switch actuating device characterized in that a switch is turned on by pushing and moving the actuator of the switch by combining one of the above and a state where the switch is swung toward the actuator of the switch.

  (2) The switch actuating device according to (1), wherein the first actuating part is constituted by a rotating member having a cam shape.

(3) said first actuating section, characterized in that it comprises a contact portion between the movable body to a position wherein the cam profile and the relative across the rotation center according to (2) Switch actuator.

  (4) The switch according to (1), wherein the first operating portion is configured by a piece having a damper function located at the other of the swinging ends of the second lever member. Actuator.

  (5) The second operating portion includes an inclined surface having a gradient that swings the first lever member as it is pressed by another one of the moving bodies ( The switch operating device according to 1).

  (6) The switch according to (5), wherein the second operating portion is integrated with the first lever member, and a member for biasing the first lever member is provided. Actuator.

  (7) The switch operating device according to any one of (1) to (6), wherein members other than the moving body are provided in a single structure.

  (8) A fulcrum in the first lever member is provided separately from the single structure, and both ends swing at the fulcrum position across the swing fulcrum supported by the single structure. One of the oscillating ends of the possible third lever member is connected, and the other of the oscillating ends of the third lever member is provided with a third operating portion having the same configuration as the second operating portion. The switch actuating device according to (1), characterized in that the additional moving body can be opposed to the third actuating portion.

  (9) The first actuating portion is provided with a link member disposed so as to be able to face the movable body, and the link member is a single structure on which the first actuating portion is supported. The switch actuating device according to any one of (1) to (4), wherein the switch actuating device is inserted into a guide portion formed in the first and second portions and can face the first actuating portion.

  (10) When the first operating part has a cam-shaped part, a link member disposed between the moving bodies with respect to the first operating part is provided in the link member, The switch actuating device according to any one of (1) to (3), wherein the switch actuating device is guided by another link member capable of moving on a trajectory corresponding to a swing trajectory of the cam toward the moving body.

  (11) In the above (10), the other link member may include a spherical portion that fits into a hole formed at a position facing the cam-shaped portion in the first operating portion. Switch actuator.

  (12) At least one of the link member and the other link member is provided in another single structure provided separately from the single structure in which members other than the moving body are supported. The switch actuating device according to any one of (9) to (11), wherein

(13) An apparatus for performing an on / off operation of a switch in accordance with a moving state of a plurality of moving objects,
A first lever member provided to be swingable;
A second lever member having both ends swingably supported around a support shaft supported by the first lever member, and one end of the swing end facing an actuator of the switch;
The first lever capable of contacting the other of the swinging ends of the second lever member and swinging the second lever member toward the actuator of the switch by one of the moving bodies. The working part of
The first lever member is pivoted so as to face the first lever member and bring the second lever member closer to the actuator of the switch when the other one of the moving bodies comes into contact with the first lever member. A second actuating part possible,
As the first and second operating parts, members that can rotate or swing along the moving direction of the moving body are used.
A state in which the first lever member causes the second lever member to approach the actuator of the switch by another one of the moving bodies; and a swing end of the second lever member by one of the moving bodies. A switch actuating device characterized in that a switch is turned on by pushing and moving the actuator of the switch by combining one of the above and a state where the switch is swung toward the actuator of the switch.

  (14) The switch according to (13), characterized in that a switch capable of detecting a moving state of the moving body is provided during any rotation or swing trajectory of the first and second operating parts. The switch actuator described.

  (15) (13) or (14), wherein the first and second actuating portions have a cam shape having an arcuate contact portion between the first lever member and the second lever member. ) Switch actuator.

  (16) An interlock mechanism using the switch actuating device according to any one of (1) to (15).

  (17) A switch provided in the switch operating device is used as a door opening / closing detection switch for detecting an opening / closing state of a door, and the door opening / closing detection switch is used for the opening / closing states of a plurality of doors. The in-lock mechanism according to (16), which is operated by the second lever member.

  (18) An image forming apparatus using the interlock mechanism according to (16) or (17).

  (19) The image forming apparatus according to (18), wherein a switch of a switch operating device used for the interlock mechanism is used for detecting an open / closed state of a wall portion positioned in a direction orthogonal to the casing.

  (20) A protrusion provided on an openable / closable side wall of the apparatus housing is used as the movable body that can be opposed to the first operating portion and the second operating portion provided in the interlock mechanism. The image forming apparatus according to (18).

  (21) The image forming apparatus according to (20), wherein the protrusion is provided on a side wall having a right-angle positional relationship of the apparatus housing.

  (22) The image forming apparatus according to any one of (18) to (20), wherein one of the protrusions is provided at a center or a corner of a front side wall of the apparatus housing.

  According to the present invention, the first lever member displaces the second lever member toward the switch actuator by the other one of the moving bodies, and the second lever member swings by one of the moving bodies. Since the configuration can be combined with a state in which one of the ends is displaced toward the actuator of the switch, the switch on / off operation can be performed only by using the first lever member and the second lever member that operate corresponding to the moving body. Can be set. This eliminates the need for a special procedure and does not require a member other than the moving body to be prepared. Therefore, the configuration for the on / off operation of the switch can be simplified. In addition, the first actuating part comes into contact with the other of the swinging ends of the second lever member at substantially the same position, and in the inventions according to claims 2 and 3, the cam shape is a rotating member. In the invention described in claim 4, and in the structure of only a single part having a damper function, the opposing contact area is not increased and the error in the opposing relationship with the moving body is obtained. Can be absorbed. As a result, it is possible to eliminate an unstable switch operation due to a difference in movement resistance or machining accuracy, which tends to occur when the facing contact area is increased.

  In the fifth aspect of the invention, since the second actuating portion is composed of an inclined surface having a gradient, even if the processing accuracy of the moving body is not stable, the lever member is reliably pushed by the inclined surface. By being able to do so, the operation of the switch can be surely performed by the lever member. In addition, if the direction of the inclined surface is changed, the movement of the moving member that moves in a direction different from the displacement direction of the lever member can be used to swing the lever member. The facing relationship can be made according to the situation of the installation position.

  In the invention described in claim 6, since the second operating portion is provided separately from the first lever member, and the member for imparting the initial behavior of the first lever member is provided, the member for imparting the behavior. It is possible to suppress an error in contact relation due to a dimensional error with a moving body that is opposed to contact with each other.

  In the invention according to claim 7, since the members other than the moving body are supported by a single structure, it is easy to obtain the assembly accuracy when the members other than the moving body are combined as one assembly, and the sensitivity is relatively high. Although it becomes low, it becomes possible to use a switch with a small detection gain that can be obtained at low cost.

  In the invention according to claim 8, another lever member can be further added to the first lever member, and the other lever member has the same configuration as the existing lever member, so that the number and movement of the moving bodies can be increased. The switch can be turned on / off according to the direction.

  In the ninth aspect of the invention, since the link member facing the first operating portion is inserted through the guide portion formed in the single structure, the operating state of the first operating portion is set with the insertion portion as a fulcrum. The contact relationship can be maintained while following death according to the position.

  In the invention described in claims 10 and 11, the link member disposed between the moving member and the first operating portion having the cam-shaped portion performs an operation following the swinging locus of the cam-shaped portion. Therefore, it is possible to ensure the followability of the actuating portion with respect to the moving body so that the operation of the lever member can be performed satisfactorily, and the on / off operation of the switch can be performed with high accuracy.

  In the invention of claim 12, since the link member is supported by a single structure, the assembly accuracy of the link member can be ensured.

Furthermore, according to the invention described in claims 13 to 15, the first and second pivots or swings by each moving body as a configuration for performing the on / off operation of the switch according to the moving state of the plurality of moving bodies. By setting the rotational position of the first and second lever members via the actuating part, it is possible to select the actuated position and the non-actuated position with respect to the switch. Unlike the sliding structure, the first and second operating parts are not slid but rotate or swing along the moving direction of the moving body. Can be
In addition, the first and second actuating parts that rotate and the first and second actuating parts that face the first and second lever members that face each other are cam-shaped parts. Even if there is variation in the movement stroke of the moving body, the first and second lever members can be operated as long as they can be rotated, so the switch can be turned on and off without being affected by variations in processing. The operation can be performed appropriately.

  According to the sixteenth to twenty-second aspect of the present invention, when the interlock mechanism is used in the image forming apparatus, the protrusions provided on the wall portion of the apparatus housing can be used as the moving body, and the operating body is operated by the protrusions. Since the part is configured to rotate instead of sliding or the like, it is possible to reduce the occurrence of errors due to the action of rubbing or the like and to ensure the operation accuracy even when a single switch is provided. In addition, by providing a projection in the center of the front side wall, it is possible to prevent contact with the switch even if the position with low rigidity is deformed due to the reaction force generated when the switch is activated. it can.

  The best mode for carrying out the present invention will be described below with reference to embodiments shown in the drawings. FIG. 1 is an external view of an image forming apparatus to which an interlock mechanism using a switch operating device according to the present invention is applied.

  In FIG. 1, the image forming apparatus 100 includes a scanning unit 101 whose main part is a document placement table above an apparatus main body 100A in which an image forming processing unit is built, and an image that is built in a substantially central part in the vertical direction. Formed between the forming processing unit 102, the paper feeding unit 103 having a plurality of paper feeding cassettes capable of stacking recording sheets below the image forming processing unit 102, and the scanning unit 101 and the paper feeding unit 103 in the vertical direction. A sheet discharge unit 104 constituted by a space, and an operation panel 105 provided in the state of protruding in front of the apparatus in front of the scanning unit 101 and equipped with operation buttons 105A and a liquid crystal display unit 105B.

  The housing of the apparatus main body 100A is provided with a front door 24 and a right door 25 that can be opened and closed by swinging around the lower surface on the front surface and a side surface perpendicular to the front surface. On the inside of the door 25, projections 24a and 25a projecting into the housing are provided. The protrusions 24a and 25a are used as moving bodies that interlock with the opening and closing operations of the doors 24 and 25.

The protrusion 24a provided on the front door 24 is located at the center inside the front door 24, and the protrusion 25a provided on the right door 25 is provided at a position biased to the front door 24 side. Openings 100A1 and 100A2 into which the protrusions 24a and 25a can be inserted are formed on the opposite housing side.
The opening 100A2 facing the protrusion of the right door 25 is formed in the vicinity of the corner on the front side surface of the right side surface adjacent to the front side surface where the front door 24 is located, and is open on the front door 24 side. A switch actuating device, which will be described later, is arranged in an internal space surrounded by 100A1.

FIG. 2 is a diagram for explaining the principle configuration of the switch operating device. In FIG. 2, the switch operating device 200 includes the following members.
A first lever member 201 that can swing within a vertical plane about a fulcrum 201A, and a first lever member 201 that is given a swinging behavior in one direction as an initial behavior; A second lever member in which both ends are supported so as to be swingable in a vertical plane with a support shaft 201B supported at one end of the lever member as a fulcrum, and one end of the swing end faces the actuator 202A of the switch 202. 203 and the other of the swinging ends of the second lever member 203 can be brought into contact with each other at substantially the same position, and can be swung toward the actuator 202A of the switch 202 by one of the moving bodies 300. When the moving body 301 abuts against the other one of the moving bodies denoted by reference numeral 301 at the other end of the first operating member 204 and the first lever member 201, the first A second actuating portion 205 capable of swinging the first lever member 201 so as to bring the second lever member 203 closer to the actuator of the switch against the initial behavior of the bar member 201. Yes.

One end of an elastic body 206 such as a compression coil spring is hung on the first lever member 201 as a member for imparting initial behavior. In this case, the moving bodies 300 and 301 are members that move in different directions. One of the moving bodies indicated by reference numeral 300 moves in the horizontal direction, and the other moving body indicated by reference numeral 301 moves in the vertical direction. Intended for those who want to. (The direction indicated by the arrow in FIG. 2)
The other end of the elastic body 206 is hung on the support bracket 400P attached to the single structure 400 corresponding to the fixing portion of the apparatus housing, whereby the first lever member 201 is used with reference to the fulcrum 201A in FIG. The habit of swinging clockwise is given.

The first operating unit 204 is a rotating member having a cam shape, and the rotating shaft 204 </ b> B supported by the single structure 400 is inserted therethrough.
The first actuating portion 204 is configured by an arc portion 204A1 having a predetermined radius and an abutting portion 204A2 that is pushed and moved by one of the moving bodies indicated by reference numeral 300 at a relative position across the rotating shaft 204B.
When the arc portion 204A1 comes into contact with the swinging end of the second lever member 203 on the side not facing the switch 202, the second lever member 203 approaches the actuator 202A of the switch 202 using the contact position as a fulcrum. It is possible to set the case where the second lever member 203 approaches the actuator 202A of the switch 202 and swings in the direction in which the second lever member 203 is moved by pushing the rotary shaft 201B as a fulcrum. ing.
In the former case, the arc portion 204A1 of the first actuating portion 204 is brought into contact with the swinging end of the second lever member 203 by one of the moving bodies denoted by reference numeral 300, and in this state, the first lever member 201 is moved. It is when it is pushed and moved by another one of the moving bodies denoted by reference numeral 301. At this time, if the first lever member 201 swings in the direction in which the second lever member 203 approaches the switch 202 side, the support shaft 201B of the second lever member 203 swings and displaces, while the second lever member Since one of the rocking ends of 203 is prevented from moving by the arc portion 204A1 of the first actuating portion 204, the other rocking end of the second lever member 203 is a switch with the blocked position as a fulcrum. The actuator 202A swings in the direction of approaching and pushing the actuator 202A.

  In the latter case, after the first lever member 201 swings and the second lever member 203 swings and displaces in a direction approaching the switch 202 side, the first actuating unit 204 is indicated by the reference numeral 300. When it is pushed by one of the At this time, when the second lever member 203 that has already been oscillated and displaced in the direction approaching the switch 202 is pressed by the first actuating portion 204 at the oscillating end, the second lever member 203 is moved around the support shaft 201B as the fulcrum. The other of the swinging ends of the lever member 203 approaches the actuator 202A of the switch 202 and swings in the direction in which it is pushed.

  The arcuate portion 204A1 in the cam-shaped portion 204A has an elastic body 204C such as a winding spring wound around the rotating shaft 204B so that one end in the circumferential direction always faces one of the swinging ends of the second lever member 203. It is energized by. As a result, the cam-shaped portion 204A only rotates rather than slides where a stroke occurs on one surface of the swing end of the second lever member 203, so that the face-to-face contact is made at substantially the same position on the surface. Can be.

  The elastic body 204C has a damper function that absorbs an excess stroke due to a torsional change when one of the moving bodies indicated by reference numeral 300 has an abnormal movement stroke in addition to the positioning of the arc portion 204A1.

  On the other hand, the second actuating portion 205 is located on the opposite side of the first lever member 201 from the end where the second lever member 203 is located, and is pushed and moved by one of the moving bodies denoted by reference numeral 300. The first lever member 201 is swung in the direction in which the second lever member 203 approaches the switch 202.

Since the present embodiment is configured as described above, even if one of the moving bodies indicated by reference numerals 300 and 301 or the other one moves first, the moving state of both moving bodies is a single switch. Detected by the ON operation of 202.
That is, when the arc portion 204A1 of the first actuating portion 204 is in contact with one of the swing ends, the second lever member 203 has a swing end when the first lever member 201 swings. The position of the supporting shaft 201B is changed. At this time, the second lever member 203 tries to swing as the position of the support shaft 201B changes. However, since one end of the swing end is locked by the first operating portion 204, the support shaft 201B is used as a fulcrum. The swing end opposite to the locked side swings in the direction of pushing and moving the actuator 202A of the switch 202.

  Therefore, when the first lever member 201 swings in response to the movement of the moving body indicated by reference numerals 300 and 301 or when the first lever member 201 has finished swinging, Due to the contact relationship with the second lever member 203, the switch 202 can be turned on by the second lever member 203.

  In the embodiment as described above, the operating states of a plurality of moving bodies that move in different directions can be detected by one switch, and the lever members pushed and moved by these moving bodies are not related to each other. Since there is no stop structure or the like, a structure for releasing the lock can be made unnecessary.

Furthermore, since the first actuating portion 204 is in rotational contact with the second lever member 203, unlike the sliding contact, the stroke for operating the switch actuator changes due to a change in processing accuracy at the sliding portion. Thus, the switch operation can be prevented from becoming unstable. Note that the moving body is not limited to the operation in the right-angle direction as in the above-described embodiment, and the operation in the same direction can also be targeted. This configuration will be described with reference to FIG. In addition, the first lever 201 and the second lever member 203 are configured to swing at both ends with a fulcrum provided on the first lever 201 and the second lever member 203 interposed therebetween. However, the present invention is not limited to this, and a fulcrum is provided at one end side to swing. It is good also as a structure which presses the center part of the 1st lever member 201 or the 2nd lever member 203 with a member.
Furthermore, the first lever member 201 is not limited to the configuration in which the initial behavior is given by the elastic body 206, but may be configured to have the initial behavior in one direction using its own weight. In the above-described embodiment, the first lever member 203 is swung with respect to the contact with the peripheral surface when the first operation unit 204 is rotated with respect to the second lever member 203, thereby Although the contact position in the 2nd lever member 203 with respect to the operation part 204 of this is the same, you may make it not only this but the structure contacted in a different position.

Next, a modified example related to the main part of this configuration will be described.
The configuration shown in FIG. 3 is different in the configuration of the moving body and the configuration of the first operating unit.
3 is a member that moves in the vertical direction, which is the same direction as the moving body 300, and is moved by one of the moving bodies 300 ′. One actuating portion 204 ′ is composed of a swingable piece whose base end is supported by a support shaft 203 A provided on the second lever member 203.
The support shaft 203A of the first actuating portion 204 ′ has its stroke when the second lever member 203 exceeds the stroke sufficient to push and move the actuator 202A of the switch due to the stroke from one of the moving bodies 300 ′. An elastic body 204C ′ such as a winding spring that can absorb an excessive stroke by a torsional change is provided.

  Therefore, when one of the moving bodies 300 ′ comes into contact with the first actuating portion 204 ′ due to an excessive stroke, the second lever member 203 swings by a stroke sufficient to push and move the actuator 202A of the switch 202. Then, instead of further swinging, the first operating portion 204 ′ is displaced downward, so that the second lever member 203 does not swing with an excessive swing stroke. This prevents the actuator 202A of the switch 202 from being pushed excessively.

  FIG. 4 is a diagram illustrating a modified example related to the second operating unit with the configuration illustrated in FIG. 2 as an object.

  In the figure, the second actuating portion 205 ′ is a single member that is rotatable with a base end supported by a support shaft 205A ′ that is rotatably supported by one of the swinging ends of the first lever 201, A surface opposed to the other one of the moving bodies denoted by reference numeral 301 is provided.

  The single member used for the second operating portion 205 ′ includes an elastic body 206 ′ such as a spring hung between a part thereof and the first lever member 201, and this elastic body 206 ′ is used. As a result, the third lever member 205 ′ has a damper function in the same manner as the elastic body in the first actuating portions 204, 204 ′ shown in FIGS.

FIG. 5 is a view showing a modified example of the second actuating portion 205 ′ shown in FIG. Are used, and the moving bodies move in a direction perpendicular to each other in a horizontal plane.
In the figure, an inclined surface 205B ′ is formed on the surface on the side where the other moving body indicated by reference numeral 301 ′ enters the second operating portion 205 ′.
The inclined surface 205B ′ has a gradient capable of swinging the first lever member 201 pressed by another one of the moving bodies denoted by reference numeral 301 ′ against the initial behavior.

  In this configuration, even when the processing accuracy of the moving body is not stable, the first lever member 201 can be reliably pushed by the inclined surface 205B ′, so that the second lever member 203 is reliably swung. Thus, the switch 202 can be reliably operated. In addition, if the direction of the inclined surface 205B ′ is changed, the lever member can be swung and displaced using the movement of the moving body that operates in a direction different from the displacement direction of the first lever member. The facing relationship with the moving body can be made in accordance with the situation of the installation position. In addition, by devising the shape of the surface facing the inclined surface on the moving body side, the impact acting on the first lever member 201 can be reduced, and the operation of the first lever member 201 can be performed smoothly and quietly. Note that an elastic body 206 ′ such as a spring is disposed between the second operating portion 205 ′ and the first lever member 201, and the elastic body 204 </ b> C provided in the first operating portion 204 Similarly, when an abnormal stroke occurs in the other moving body denoted by reference numeral 301, the second actuating portion 205 ′ rotates by itself and absorbs the excessive stroke, whereby the first lever member 201 is moved. A damper function is provided to prevent the amount of swinging from being inadvertently increased and the operating relationship between the second lever member 203 and the switch 202 from being distorted.

Next, a configuration that enables the addition of moving bodies will be described.
In FIG. 6, the first lever member 201 described so far is released without being supported by the single structure 400, and is supported by a third lever member 207 described later.
The single structure 400 supports the fulcrum 207A of the third lever member 207.

Similarly to the first lever member 201, the third lever member 207 is a member that can swing at both ends with the fulcrum 207A interposed therebetween, and one of the oscillating ends supports the fulcrum 201A of the first lever member 201. is doing.
The other end of the swinging end of the third lever member 207 is provided with a third operating portion 207B having an inclined surface similar to that shown in FIG. 5, and the third operating portion 207B includes The mobile body shown by the code | symbol 302 different from the mobile body shown by the codes | symbols 300 and 301 opposes so that it can move in a horizontal surface like other mobile bodies.

  In this configuration, in addition to the first lever member 201 or the second lever member 203 swinging toward the switch 202 side by the moving body indicated by reference numerals 300 and 301, the first lever member 201 is the third lever. The lever member 207 is lifted up by swinging. Therefore, even when a new moving body is added in addition to the moving bodies indicated by reference numerals 300 and 301, the first lever member 201 is lifted up by the third lever member 207 driven to swing by the added moving body. As the first operating portion 205 acts on the second lever member 203, the swing radius of the second lever member 203 is increased. Accordingly, the swing stroke of the swing end of the first lever member 201 where the second lever member 203 is positioned can be reduced with respect to the movement of the moving body, and therefore the second lever member 203 with respect to the movement of the moving body. Therefore, the accuracy of the ON operation of the switch 202 can be increased. Moreover, even when the moving direction of the moving body is diversified, the moving state of the moving body can be detected by a single switch.

  FIG. 7 shows an elastic body 208 for giving a damper function to the third operating portion 207B in the configuration shown in FIG. 6 in the same manner as the second operating portion 205 in the first lever member 201. An example provided is shown.

Next, a modified example of the configuration of the moving body in the above embodiment will be described.
FIG. 8 is directed to the configuration shown in FIG. 5, and the first actuating unit 204 is provided with a link member 500 disposed so as to face the moving body indicated by reference numeral 300.
The link member 500 is an L-shaped member whose side view shape is collapsed, and a moving body indicated by reference numeral 300 is opposed to a piece portion 500 </ b> A corresponding to the bottom side portion, and a contact portion of the first operating portion 204. The tip of the opposing horizontal piece 500B is pin-coupled to the abutting part. The horizontal piece portion 500B is inserted into a guide portion 400A formed of a cut and raised piece formed in the single structure 400, so that displacement in the vertical direction is restricted when moving in the horizontal direction. Yes.

The configuration for guiding the link member 500 may be the configuration shown in FIG.
In FIG. 9, the link member 500 is pin-coupled at the end facing the first actuating portion 204 facing the swinging end of the second lever member 203, as in the configuration shown in FIG.

On the other hand, a link member 501 having a rocking end fitted to the lower surface is provided near the end of the link member 500 on the side of the moving body indicated by reference numeral 300.
The link member 501 has a swing trajectory along the rotation trajectory of the end portion that is pin-coupled to the contact portion of the first operating portion 204. Although the link member 501 is not shown in a structure 401 different from the single structure 400 in which the first lever member 201 is installed, the link member 501 can move along a guide member that allows reciprocal movement. , And is biased toward a position to be pushed and moved by the moving body denoted by reference numeral 300.

  Therefore, when the link member 501 is pushed and moved by the moving body indicated by the reference numeral 300, the first actuating portion 204 can rotate in conjunction with the distal end portion thereof. As a result, the swinging position of the second lever member 203 is set by the first operating portion 204, and the switch 202 can be turned on.

FIG. 10 is a diagram illustrating another example of a connection structure of the link member 500 to the first operating unit 204.
As shown in a balloon diagram in FIG. 10, a spherical body 500 </ b> C that can be inserted into and removed from the cylindrical hole 204 </ b> A <b> 20 formed in the contact portion 204 </ b> A <b> 2 of the first operating portion 204 is integrated at the tip of the link member 500. ing.

  By adopting such a connection structure, the spherical body 500C is inserted into the cylindrical hole 204A20. Therefore, even when the facing state of the link member 500 and the first operating portion 204 is slightly shifted, they are fitted to each other. Since the combined state is obtained, the operation of the first operating part 204 by the link member 500 can be performed reliably.

  FIG. 11 is a view showing a support structure of the link member 500. In FIG. 11, the link member 500 is a member assembled as a module attached to the structure 401. The substrate 600 attached to the structure 401, and the substrate A link member sliding support portion 600 </ b> A, which is a separate member from 600, is provided.

In the link member sliding support portion 600A, as shown in a balloon diagram in FIG. 11, a sliding guide portion 600A1 that can hold the bottom portion of the link member 500 having the tip connected to the first operating portion 204. And a shaft support portion 600A2 through which the support shaft 501A for swingably supporting the link member 501 is inserted, and a latching portion 600A3 for supporting an elastic body 601 such as a spring hung between the link member 500 side. It has been. The elastic body 601 is a member for imparting a habit of moving the link member 500 toward the moving body denoted by reference numeral 300.
On the upper part of the sliding guide portion 600A1, there is provided a movement restricting piece 600A4 composed of a piece that enters into a recess formed in the link member 500.

In such a configuration, the link member 500 is sandwiched between the slide guide portions 600A1 of the link member slide support portion 600A, and the link member 501 is swingably supported by the support shaft 501A inserted through the shaft support portion 600A2. In this state, the link member sliding support portion 600A is attached to the substrate 600. Thereafter, by applying the elastic body 601, a state in which the moving state of the moving body can be detected is obtained.
In such a configuration, by using the link member, the interlocking relationship can be established even if there is a gap between the first operating unit 204 and the moving body.

The operation of the configuration using the link members 500 and 501 will be described as shown in FIGS.
12 shows a state where both of the moving bodies indicated by reference numerals 300 and 301 do not act on the switch actuator, and FIG. 13 shows a state where one of the moving bodies indicated by reference numeral 300 acts on the link member 500. is there.
FIG. 14 shows a state in which the other moving body denoted by reference numeral 301 is acting on the second operating portion 205 of the first lever member 201. FIG. 15 shows the moving bodies 300 and 301 of the medical method. It is in a state of acting on the switch actuator.

  In the state shown in FIG. 12, the contact relationship between the first operating portion 204 and the second lever member 203 is not established. Therefore, the second lever member 203 is separated from the actuator 202A of the switch 202.

  As shown in FIG. 13, when the movable body indicated by reference numeral 300, for example, the right door 25 is closed and the projection 25a acts on the link member 500, the link member 500 is moved by the link member 501 and the link member sliding support portion 600A. The first actuating portion 204 is rotated by being guided through the connecting portion at the tip, and the arc portion 204A1 is opposed to the swinging end of the second lever member 203. In this state, as shown in FIG. 15, when the movable body, for example, the front door 24 is closed and the protrusion 24 a acts on the second operating portion 205 in the first lever member 201, the first lever member is indicated. The position of the support shaft 201B of the second lever member 203 in 201 is swung. When the swinging end of the second lever member 203 is stopped by the arc portion 204A1 of the first actuating portion 204, the second lever member 203 becomes the actuator 202A of the switch 202 with the contact position with the arc portion 204A1 as a fulcrum. Swing in the direction of pushing. Thereby, it can be detected by the single switch 202 that the front door 24 and the right door 25 are closed at appropriate positions.

On the other hand, when the protrusion 24a illustrated as the moving body denoted by reference numeral 301 pushes and moves the first lever member 201 before the protrusion 25a corresponding to one of the moving bodies 300, as shown in FIG. The first lever member 201 swings toward a position where the second lever member 203 is opposed to the first operating portion 204.
When the link member 500 is pushed and moved by the protrusion 25a in this state, the arc portion 204A1 of the first operating portion 204 abuts on the swinging end of the second lever member 203 as shown in FIG. The second lever member 203 pivots (swings) in the direction of pushing and moving the actuator 202A of the switch 202 with fulcrum as a fulcrum.

The switch operating device described in the above embodiments can be used as an interlock mechanism of an image forming apparatus.
When used in an image forming apparatus, as shown in FIG. 1, the protrusions 24a and 25a on the front door 24 and the right door 25 that can be opened and closed by moving in different directions and swinging in this case. Can correspond to a moving object.

  In particular, when the switch actuating device is provided for the front door 24 and the right door 25 positioned adjacent to the right door 25, the first lever member 201 and the second lever member 203 are respectively in the vertical plane. The first operating portion 204, which is a member that contacts the swing end of the second lever member 203, is in a contact relationship by rotation rather than sliding that requires a stroke. Therefore, it is possible to reduce the installation space in the horizontal plane, and it is possible to prevent a situation in which the operation stroke of the switch becomes unstable due to a stroke change due to a processing error on the sliding surface.

Next, an embodiment related to the invention of claims 13 to 17 will be described as a modification of the main part of the invention of claim 1.
FIG. 16 is an external view of an image forming apparatus to which an interlock mechanism using a modification of the switch operating device is applied. 16 and 17, the reference numeral 24 used in FIG. 1 is a reference numeral indicating the front door, the reference numeral 25 is a reference sign indicating the right door, and the other members shown in FIG. 1 are the same as those shown in FIG. This is indicated by a symbol.

  In FIG. 16, the image forming apparatus 100 has an operation unit 101 having a document placing table as a main part above an apparatus main body 100A in which an image forming processing unit is built, and an image built in a substantially central part in the vertical direction. Formed between the forming processing unit 102, the paper feeding unit 103 having a plurality of paper feeding cassettes capable of stacking recording sheets below the image forming processing unit 102, and the scanning unit 101 and the paper feeding unit 103 in the vertical direction. A sheet discharge unit 104 constituted by a space, and an operation panel 105 provided in the state of protruding in front of the apparatus in front of the scanning unit 101 and equipped with operation buttons 105A and a liquid crystal display unit 105B.

  The housing of the apparatus main body 100A is provided with a front door 24 and a right door 25 that can be opened and closed by swinging around the lower surface on the front surface and a side surface perpendicular to the front surface. On the inside of the door 25, projections 24a and 25a projecting into the housing are provided. The protrusions 24a and 25a are used as moving bodies that interlock with the opening and closing operations of the doors 24 and 25.

The protrusion 24a provided on the front door 24 is provided at a position biased toward the right door 25, and the protrusion 25a provided on the right door 25 is provided at a position close to the protrusion 24a of the front door 24. Openings 100A1 and 100A2 into which the protrusions 24a and 25a can be inserted are formed on the housing side facing the protrusions.
On the housing side into which the protrusions 24a, 25a provided on the front door 24 and the right door 25 respectively enter, a switch operating device 200 constituting an interlock mechanism using these protrusions as a moving body is provided. Reference numeral 200 is arranged at a corner of the casing in FIG. 17 showing an external view of the casing with the exterior cover removed. In FIG. 2, arrows F <b> 1 and F <b> 2 indicate trajectories in which the protrusions 24 a and 25 a enter the housing side.

FIGS. 18 and 19 are views showing the principle configuration of a switch operating device 2000 used in the interlock mechanism. In FIG. 18, the switch operating device 2000 is a cover member attached to the housing side as shown in FIG. 1000 includes a member that supports a fulcrum, which will be described later, and includes a configuration for turning on the switch by the entry of protrusions 24a and 25a indicated by arrows F1 and F2, as shown in FIG. Consists of.
FIG. 19 is a view showing a state in which the cover 1000 shown in FIG. 18 is removed. In FIG. 19, the switch operating device 2000 can swing in a vertical plane around the fulcrum shaft 1201A and is usually connected to the switch. The first lever member 1201 maintained in the non-operating position and the support shaft 1201B supported on one end of the first lever member 1201 are supported at both ends so as to be swingable within a vertical plane. The second lever member 1203 facing one side of the actuator 1202A of the switch 1202 whose one of the oscillating ends is for power on / off, and the other end of the oscillating end of the second lever member 1203 are in contact with each other at substantially the same position. In addition, when the protrusion 25a on the right door side 25 is a moving body, it is pushed by the protrusion 25a that is the moving body (see FIG. 9, the second lever member 1203 is indicated by an arrow F <b> 1 for the sake of convenience. One of the swinging ends of the second lever member 1203 operates the actuator of the switch 1202 and the swinging end of the first lever member 1201. When the projection 24a of the front door 24 has a circular arc surface that can be brought into contact with the formed operating piece 201C as a moving body, it is pushed by the projection 24a that is the moving body (in FIG. 19, for the sake of convenience, the arrow F2 The first lever member 1201 is disposed to face one of the swinging ends of the second operating unit 1205 and the second operating unit 1205 that can move the first lever member 1201 in a direction approaching the actuator 1202A of the switch 1202. The door open state detection switch 1400 is provided.
The door open state detection switch 1400 is turned on when the second operating unit 1205 is released and contact is released, and can alert that the right door 25 is open.

  As shown in FIG. 20, the first actuating portion 1204 is composed of a member that can rotate along the movement direction (arrow F1) of the protrusion 24a around the rotation support shaft 1204A. A cam-shaped portion 1204B having a circular arc surface as a center and a pressing operation piece 1204C pushed by the protrusion 24a are rotated. When the pressing operation piece 1204C is pushed and moved by the entry of the protrusion 24a, the cam-shaped portion 1204B is rotated. One of the swinging ends of the second lever member 1230 is displaced toward the actuator 202A of the switch 202. 20A shows a plan view of the first operating portion 1204, and FIG. 20B shows a perspective view.

  On the other hand, in FIG. 19, the second actuating portion 1205 is a member that can rotate along the moving direction (arrow F2) of the protrusion 25a around the rotation support shaft 1205A, and is actuated by the first lever member 1201. A cam-shaped portion 1205B made of an arc surface is provided at a position where it can come into contact with the piece 1201C. The second actuating unit 1205 is given a habit of constantly taking a posture toward the projection 25a by the biasing of an elastic body 1206 such as a spring hung between the cover 1000 shown in FIG. It is designed to increase the sensitivity when pushing.

  Since the first and second actuating parts 1203 and 1205 can be rotated along the moving direction of the projections 24a and 25a used as the moving body, unlike the case of moving forward and backward, the support shaft is used as the installation space. It can be done with only the space necessary for the rotational movement around the center, and the reaction force acting on the protrusion is made the extension direction of the protrusion, so that inadvertent bending load on the protrusion is not generated and durability is improved. Can be improved. In addition, since cam-shaped portions 1204B and 1205B are provided at the facing contact portions with the first and second lever members 1201 and 1203, they can be rotated even if there is variation in the amount of protrusion entering and the force relationship when the door is closed. By doing so, the first and second lever members 1201 and 1203 can be swung. Thereby, it is possible to ensure the sensitivity when the first and second lever members 1201 and 1203 are moved regardless of the variation in the amount of protrusion entering due to an assembly error on the door side.

  Further, since one of the swinging ends of the second operating unit 1205 is provided with a door open state detection switch 1400 in the trajectory of rotation, if the switch 1202 does not operate, in other words, It is possible to detect a state that is not completely closed, and in particular, by disposing the door open state detection switch 1400 in the second operation unit 1205 corresponding to the right door 25 on the side that is opened / closed for jamming or the like. Thus, it is possible to reliably detect the open state of the door at a position where the opening / closing frequency is high.

  Further, the first lever member 1201 is given a habit that the operating piece 1201C abuts against the cam-shaped portion 1205B of the second operating member 1205 by an elastic body (not shown), and is pushed by the second operating portion 1205. The sensitivity of has been increased.

  The switch operating device 2000 configured as described above has an operating state of the switch 1202 used for power on / off control according to the closed state of the front door 24 and the right door 25 as described in FIGS. Can be set. In FIGS. 21 to 24, (A) is a side view of the main configuration of the switch operating device 2000, and (B) is a perspective view.

  FIG. 21 shows a state in which both the front door 24 and the right door 25 are opened. In this state, the first lever member 1201 moves toward the cam-shaped portion 1205B side of the second operating portion 1205 due to the initial behavior. Since the second lever member 1203 is separated from the actuator 1202A of the switch 1202 by rotating, and the second actuating portion 1204 does not bring the cam-shaped portion 1204B into contact with the second lever member 1203, the switch 1202 is Keep off. Further, the door open state detection switch 1400 is in a state where it does not come into contact with the two actuating parts 1205 being separated, and therefore is in a state of alarming that the right door 25 is opened.

  The state shown in FIG. 22 shows a case where only the right door 25 is closed. In this state, the second operating part 1205 is pushed and moved by the projection 25a (arrow F2), so the second operating part 1205 rotates to swing the first lever member 1201 in a direction approaching the switch 1202 and press the door open state detection switch 1400.

  On the other hand, since the front door 24 is not closed, the first operating unit 1204 maintains the rotating city state, and the second lever member 1203 is maintained away from the actuator 1202A of the switch 1202. Therefore, the switch 1202 maintains an off state.

  FIG. 23 shows a case where only the front door 24 is closed. In this case, the second operating portion 1204 is rotated by being pushed by the protrusion 24a, and the cam-shaped portion 1204B is moved to the second position. Approach the lever member 1203 side.

  At this time, since the right door 25 is not closed, the second actuating unit 1205 is maintained in a non-rotating state. Thus, the first lever member 1201 that is the object to be pushed and moved by the second actuating unit 1205. Is not rotated due to the absence of a pressing operation by the second operating unit 1205, and therefore the state where the switch 1202 is not approached is maintained, and the rotation of the first lever member 1201 and the third Since the lever member 1203 is not combined with the rotation of the lever member 1203, the switch 1202 is not operated, that is, maintained in the off state.

  FIG. 24 shows a state in which both the front door and the right door are closed. In this case, the first lever member 1201 is in a state of being close to the switch 1202 by the rotation of the second operation unit 1205. The second lever member 1203 provided to the switch 1202 is pushed and moved by the face-to-face contact with the cam-shaped portion 1204B through the rotation of the first operating portion 1204, and presses the actuator 1202A of the switch 1202. As a result, the switch 1202 is switched on and the image forming apparatus is turned on.

  FIG. 25 shows the relationship between the open / closed state of the front door 24 and the right door 25 and the on / off operation of the switch 1202 due to the facing relationship between the first and second operating parts 1204 and 1205 and the protrusions 24a and 25a. Will be set in the state.

  According to the above configuration, the combined operation of the first and second lever members is used by using the switch operating device as an interlock mechanism that performs the on / off operation of the switch based on the open / closed state of the plurality of doors. In this case, since the first and second actuating parts, which are members used for the combined operation, are rotating members, a complex operation can be performed in a space-saving manner because the moving stroke is not required.

  In addition, a switch that can detect the open state of the door is associated with one of the operating parts, which is one of the members used for the operation of the switch, so that multiple functions of setting the operation of the power switch and detecting the open / closed state of the door The cost can be reduced by omitting the number of parts.

1 is an external view of an image forming apparatus to which an interlock mechanism including a switch operating device according to the present invention is applied. It is a figure for demonstrating the principle structure of the switch actuator by this invention. It is a figure for demonstrating the partial modification in the principal part structure of the switch operating device shown in FIG. It is a figure for demonstrating the partial modification of the principal part structure shown in FIG. It is a figure for demonstrating the partial modification of the principal part structure shown in FIG. It is a figure for demonstrating the principal part modification of the structure shown in FIG. It is a figure for demonstrating the some modification of the structure shown in FIG. It is a figure for demonstrating another Example of the switch actuator by this invention. It is a figure for demonstrating the some modification of the structure shown in FIG. It is a figure for demonstrating the partial modification of the structure shown in FIG. It is a figure for demonstrating the modification of the other part of the structure shown in FIG. It is a figure for demonstrating the 1 aspect which makes object the structure shown in FIG. It is a figure which shows the state changed from the state shown in FIG. It is a figure for demonstrating another aspect which makes object the structure shown in FIG. It is a figure for demonstrating the state changed from the aspect shown in FIG. 13 and FIG. It is an external view of the image forming apparatus to which the interlock mechanism provided with the modification of the switch operating device by this invention is applied. FIG. 17 is an external view illustrating a housing structure of the image forming apparatus illustrated in FIG. 16. It is an external view for demonstrating the principle structure regarding the modification of the switch actuator by this invention. It is a perspective view for demonstrating the principle structure shown in FIG. It is an external view which shows the structure of the 2nd action | operation part used for the principle structure shown in FIG. It is a figure which shows the case where all the doors are open | released as an operating state in the modification of the switch operating device by this invention. It is a figure which shows the case where one of the doors is closed with respect to the operating state of the switch actuator shown in FIG. It is a figure which shows the case where only one other door is closed with respect to the operating state of the switch operating device shown in FIG. It is a figure which shows the case where all the doors are closed with respect to the operating state of the switch operating device shown in FIG. It is a table | surface figure for demonstrating the relationship between the opening-and-closing state of a door in the switch actuator of the structure shown in FIG. 18, and the operation state of a switch.

Explanation of symbols

24 Front door 24a Projection corresponding to moving body 25 Right door 25a Projection corresponding to moving body 100 Image forming apparatus 201 First lever member 201A Support point 201B Support shaft 202 Switch 202A Actuator 203 Second lever member 204 First operation Part 204A1 Arc part 204C Elastic body 205 Second actuating part 205A Inclined surface 206, 206 'Elastic body 300 One of the moving bodies 301 Another one of the moving bodies 1201 First lever member 1201A Support shaft 1201B Support shaft 1202 Switch 1202A Actuator 1203 Second lever member 1204 First operating part 1204A Rotating support shaft 1204B Cam-shaped part 1205 Second operating part 1205A Rotating support shaft 1205B Cam-shaped part

Claims (22)

A device for performing an on / off operation of a switch according to a moving state of a plurality of moving objects,
A first lever member provided to be swingable;
A second lever member having both ends swingably supported around a support shaft supported by the first lever member, and one end of the swing end facing an actuator of the switch;
The first lever capable of contacting the other of the swinging ends of the second lever member and swinging the second lever member toward the actuator of the switch by one of the moving bodies. The working part of
The first lever member is pivoted so as to face the first lever member and bring the second lever member closer to the actuator of the switch when the other one of the moving bodies comes into contact with the first lever member. A second actuating part possible,
A state in which the first lever member causes the second lever member to approach the actuator of the switch by another one of the moving bodies; and a swing end of the second lever member by one of the moving bodies. A switch actuating device characterized in that a switch is turned on by pushing and moving the actuator of the switch by combining one of the above and a state where the switch is swung toward the actuator of the switch.   The switch actuating device according to claim 1, wherein the first actuating portion is constituted by a rotating member having a cam shape. Said first actuating section, the switch actuator of claim 2, characterized in that it comprises a contact portion between the movable body to a position wherein the cam profile and the relative across the rotation center .   2. The switch operating device according to claim 1, wherein the first operating part is configured as a piece having a damper function located at the other end of the swinging end of the second lever member.   The said 2nd action | operation part is provided with the inclined surface which has the gradient which rocks | fluctuates a said 1st lever member as it is pressed by the other one of the said mobile body. The switch actuator described.   6. The switch operating device according to claim 5, wherein the second operating part is integrated with the first lever member, and a member for biasing the first lever member is provided.   The switch actuating device according to any one of claims 1 to 6, wherein a member other than the moving body is provided in a single structure.   A fulcrum in the first lever member is provided so as to be separated from the single structure, and the fulcrum is positioned at a fulcrum position at which both ends can swing with a swing fulcrum supported by the single structure interposed therebetween. One of the oscillating ends of the third lever member is connected, and the other of the oscillating ends of the third lever member is provided with a third operating portion having the same configuration as the second operating portion. The switch actuating device according to claim 1, wherein the additional moving body is capable of facing and abutting against the actuating portion of 3.   The first operating part is provided with a link member arranged so as to be able to face the moving body, and the link member is formed in a single structure on which the first operating part is supported. The switch actuating device according to any one of claims 1 to 4, wherein the switch actuating device is inserted into a guide portion and can face the first actuating portion.   In the case where the first operating portion has a cam-shaped portion, a link member disposed between the moving body with respect to the first operating portion is provided on the moving body side. 4. The switch actuating device according to claim 1, wherein the switch actuating device is guided by another link member that can move on a locus corresponding to a rocking locus of the cam.   The switch operation according to claim 10, wherein the other link member includes a spherical portion that fits into a hole formed at a position facing the cam-shaped portion in the first operation portion. apparatus.   At least one of the link member and the other link member is provided in another single structure provided separately from the single structure in which members other than the moving body are supported. The switch actuating device according to any one of claims 9 to 11, characterized in that: A device for performing an on / off operation of a switch according to a moving state of a plurality of moving objects,
A first lever member provided to be swingable;
A second lever member having both ends swingably supported around a support shaft supported by the first lever member, and one end of the swing end facing an actuator of the switch;
The first lever capable of contacting the other of the swinging ends of the second lever member and swinging the second lever member toward the actuator of the switch by one of the moving bodies. The working part of
The first lever member is pivoted so as to face the first lever member and bring the second lever member closer to the actuator of the switch when the other one of the moving bodies comes into contact with the first lever member. A second actuating part possible,
As the first and second operating parts, members that can rotate or swing along the moving direction of the moving body are used.
A state in which the first lever member causes the second lever member to approach the actuator of the switch by another one of the moving bodies; and a swing end of the second lever member by one of the moving bodies. A switch actuating device characterized in that a switch is turned on by pushing and moving the actuator of the switch by combining one of the above and a state where the switch is swung toward the actuator of the switch.   14. The switch according to claim 13, wherein a switch capable of detecting a moving state of the moving body is provided during a rotation or swinging trajectory of any of the first and second operating portions. Actuator.   15. The switch according to claim 13, wherein the first and second actuating portions have a cam shape in which a facing contact portion between the first lever member and the second lever member has an arcuate surface. Actuator.   An interlock mechanism using the switch actuator according to any one of claims 1 to 15.   A switch provided in the switch operating device is used as a door open / close detection switch for detecting an open / closed state of the door, and the door open / close detection switch is used for the open / closed states of a plurality of doors. The in-lock mechanism according to claim 16, wherein the in-lock mechanism is operated by a lever member.   An image forming apparatus using the interlock mechanism according to claim 16.   19. The image forming apparatus according to claim 18, wherein a switch of a switch operating device used for the interlock mechanism is used for detecting an open / closed state of a wall portion positioned in a direction orthogonal to the casing.   The movable body that can be opposed to the first operating portion and the second operating portion provided in the interlock mechanism uses a protrusion provided on an openable / closable side wall of the apparatus housing. Item 19. The image forming apparatus according to Item 18.   The image forming apparatus according to claim 20, wherein the protrusion is provided on a side wall having a right-angle positional relationship with the apparatus housing.   21. The image forming apparatus according to claim 18, wherein one of the protrusions is provided at a center or a corner of a front side wall of the apparatus housing.

Images