JP6066489B2 - Electronics - Google Patents

Description

  The present invention relates to an electronic device.

Some conventional electronic devices connect a connector on the electronic device side and a connector on the rack side in a state in which the electronic device side is housed so as to be insertable / removable with respect to the rack. A change-over switch (for example, a circuit breaker (MCCB)) for switching the conduction state of the electronic circuit in the electronic device is provided on the front surface of the electronic device exposed to the outside in a state of being accommodated in the rack. By turning on, a current flows between the electronic device and the rack. In addition, a handle is provided on the front surface of the electronic device for gripping the electronic device when the electronic device is pulled out from the rack.
Patent Document 1 discloses an electronic device that employs a mechanical interlock structure that prevents the electronic device from being pulled out of the rack in a state where a current is flowing between the electronic device and the rack (live line state). ing.

This interlock structure includes a restricting portion that is movable between a restricting position that restricts the operation of turning on the changeover switch and an allowable position that permits operation of the changeover switch, And a cover member that holds the handle that is movable between positions in a position where the handle cannot be gripped. The cover member is connected to the restricting portion and moves integrally with the restricting portion. The cover member allows the handle to move in a state where the restricting portion is arranged at the restricting position, and holds the handle in a position where the handle cannot be gripped in a state where the restricting portion is arranged in the allowable position.
Further, in this interlock structure, the changeover switch prevents the restriction portion from moving to the restriction position in a state where the restriction portion is arranged at the allowable position and the changeover switch is turned on.

JP 2011-1104047 A

  However, in the electronic device of Patent Document 1, since the cover member is arranged so as to face the front surface of the electronic device with a space therebetween, the operator's fingers and the like are easily caught on the cover member. When an operator's finger or the like is caught on the cover member, a sudden external force applied to the cover member may cause the restricting portion to be pressed against the change-over switch in an on state, and stress may be applied to the change-over switch. In this case, there is a possibility that a malfunction may occur in the changeover switch and the electronic circuit of the electronic device connected thereto.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide an electronic device capable of protecting a changeover switch while preventing a drawing operation in a live line state.

In order to solve this problem, an electronic device according to the present invention includes a housing that has an electronic circuit therein and is housed so that it can be inserted into and removed from the rack in one direction, and the housing is housed in the rack. A switch provided on the front plate side of the casing that is exposed to the outside to switch the conduction / non-conduction state of the electronic circuit, and a handle provided to protrude outward from the front plate,
The change-over switch is movable between a conducting position where the electronic circuit is in a conducting state and a non-conducting position where the electronic circuit is in a non-conducting state, and the handle is between the front plate and a finger. Between the position where the handle can be inserted and the position where the finger cannot be inserted cannot be inserted, and the position where the handle is fixed is fixed. A handle restricting portion that is provided so as to be movable along the main surface of the front plate with respect to the allowable movement position, and is provided integrally with the handle restricting portion, and the handle restricting portion is located at the movement restricting position. A switching permissible position in which the changeover switch is allowed to be switched from a non-conducting position to a conducting position, and the selector switch is switched in a state in which the handle restricting portion is arranged at the movement permissible position. A switch restricting portion provided so as to be movable along the main surface of the front plate between the switch restricting position for restricting the operation, and the switch restricting portion is disposed at the switch permissible position, and In a state where the changeover switch is arranged at the conduction position, the changeover switch includes an interlock structure that restricts the movement of the switch restriction portion to the changeover restriction position, and the handle restriction portion is provided on the front plate. It is characterized by being arranged with no gap between the outer surface.

According to the present invention, it is possible to allow only one of the switching operation of the conduction state of the electronic circuit of the electronic device by the changeover switch and the operation of pulling out the electronic device from the rack, and to block the other. Therefore, it is possible to prevent the electronic device from being pulled out from the rack in a live line state in which a current flows between the electronic device and the rack.
Furthermore, according to the present invention, since the handle restricting portion is disposed between the outer surface of the front plate without a gap, it is possible to prevent the operator's fingers from being caught unexpectedly by the handle restricting portion. Therefore, it is possible to prevent the changeover switch from being stressed by an unexpected external force, and to prevent a trouble from occurring in the changeover switch and the electronic circuit of the electronic device connected thereto.

It is a schematic perspective view which shows the electronic device which concerns on 1st embodiment of this invention, and the rack which accommodates this. The 1st state of the principal part of the electronic device which concerns on 1st embodiment of this invention is shown, (a) is a front view, (b) is AA arrow sectional drawing of (a), (c) is It is BB arrow sectional drawing of (a). It is an expanded sectional view which shows the relationship between the changeover switch and switch control part in the 1st state shown in FIG. The 2nd state of the principal part of the electronic device which concerns on 1st embodiment of this invention is shown, (a) is a front view, (b) is CC sectional view taken on the line of (a), (c) is It is DD sectional view taken on the line of (a). It is an expanded sectional view which shows the relationship between the changeover switch and switch control part in the 2nd state shown in FIG. The 1st state of the principal part of the electronic device which concerns on 2nd embodiment of this invention is shown, (a) is a front view, (b) is EE arrow sectional drawing of (a), (c) is It is FF arrow sectional drawing of (a). It is an expanded sectional view which shows the relationship between the changeover switch and switch control part in the 1st state shown in FIG. The 2nd state of the principal part of the electronic device which concerns on 2nd embodiment of this invention is shown, (a) is a front view, (b) is GG arrow sectional drawing of (a), (c) is It is HH arrow sectional drawing of (a). It is an expanded sectional view which shows the relationship between the changeover switch and switch control part in the 2nd state shown in FIG. It is a front view which shows the principal part of the modification of the electronic device shown to FIGS.

[First embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, an electronic apparatus 10 </ b> A according to this embodiment is accommodated so as to be insertable / removable in one direction (also referred to as an X direction or an insertion / removal direction in FIG. 1) with respect to a rack 1. In the present embodiment, the insertion / extraction direction of the electronic device 10 </ b> A is set to a direction orthogonal to the front surface 1 a of the rack 1.

The rack 1 has an accommodating portion 2 that opens to the front surface 1a. The accommodating portion 2 is formed in a vertically long shape so that a plurality of electronic devices 10A can be accommodated side by side in the height direction (Z direction) of the rack 1. A guide rail 4 extending in the insertion / extraction direction of the electronic device 10 </ b> A is provided on the inner surface 2 b of the housing portion 2. The guide rail 4 plays a role of sliding the electronic device 10A in one direction (X direction) by engaging with the side portion of the electronic device 10A when the electronic device 10A is inserted into and removed from the rack 1.
Furthermore, a rack-side connector 3 for electrical connection to the electronic device 10A is provided on the inner end surface 2a of the housing portion 2 facing the insertion direction (X1 direction) of the electronic device 10A. The rack-side connector 3 is a device-side connector (on the back side 20b side of the electronic device 10A in the insertion direction of the electronic device 10A with respect to the rack 1) in a state where the electronic device 10A is housed in the housing portion 2. (Not shown).

As shown in FIGS. 1 to 5, the electronic device 10 </ b> A includes a housing 20, a device-side connector (not shown) provided on the back surface 20 b side of the housing 20, and a switch provided on the front side of the housing 20. A switch 30 and a handle 40.
An electronic circuit for electrical connection with the rack 1 is provided in the housing 20 of the electronic device 10A. This electronic circuit is electrically connected to the device side connector and the changeover switch 30. The housing 20 includes a front plate 21 that is exposed to the outside while being accommodated in the rack 1. An outer surface (main surface) 21 a of the front plate 21 exposed to the outside forms the front of the housing 20.

  The change-over switch 30 switches the conduction / non-conduction state of the electronic circuit inside the housing 20, and includes a conduction position 30B (see FIGS. 4 and 5) that brings the electronic circuit into a conduction state and a non-conduction state of the electronic circuit. It is possible to move between the non-conduction position 30A (see FIGS. 2 and 3). The change-over switch 30 is arranged in the housing 20 and is exposed to the outside through an opening 22 formed in the front plate 21.

The change-over switch 30 of the present embodiment is a seesaw switch that is swingable with respect to the housing 20. As shown in FIGS. 3 and 5, the change-over switch 30 includes a first protrusion 31 that protrudes from the reference surface 30 a in the state of being disposed at the conduction position 30 </ b> B, and a reference surface 30 a that is disposed at the non-conduction position 30 </ b> A. A projecting second projecting portion 32. The reference surface 30a is a surface of the changeover switch 30 that faces the inner surface (main surface) 21b of the front plate 21 with a space therebetween.
The first protrusion 31 and the second protrusion 32 are arranged in the height direction (Z direction) of the rack 1 and the housing 20, with the first protrusion 31 on the upper side and the second protrusion 32 on the lower side. Has been. Moreover, even if the 1st projection part 31 and the 2nd projection part 32 are the states which protruded from the reference surface 30a, they do not protrude from the outer surface 21a of the front board 21, In this embodiment, especially the opening part 22 of the front board 21 Don't get in.

In the present embodiment, as shown in FIG. 3, for example, as shown in FIG. 5, the first protrusion 31 is pushed toward the reference surface 30a while the first protrusion 31 protrudes from the reference surface 30a. The changeover switch 30 swings so that the first protrusion 31 moves to a position where it does not protrude from the reference surface 30a and the second protrusion 32 moves to a position where it protrudes from the reference face 30a. That is, the changeover switch 30 moves from the non-conducting position 30A to the conducting position 30B, thereby bringing the electronic circuit into a conducting state.
As shown in FIGS. 1, 2, and 4, the changeover switch 30 is provided at one end (the left end in FIG. 1) of the casing 20 (front plate 21) in the width direction (Y direction). Yes.

  The handles 40 are portions that are gripped (gripped) by the operator when the electronic device 10 </ b> A is inserted into and removed from the rack 1, and a pair of handles 40 are provided at both ends in the width direction of the housing 20. In the following description, as shown in FIGS. 2 and 4, description will be made with reference to one handle 40 provided at one end in the width direction of the housing 20, but provided at the other end. The other handle 40 may be configured similarly.

  The handle 40 is provided so as to protrude from the front plate 21 to the outside of the housing 20. Further, the handle 40 can be gripped with respect to the housing 20 between the front plate 21 and a grippable position 40A (see FIG. 2) where the operator's fingers can be inserted, and a gripping impossible position 40B where the fingers cannot be inserted (see FIG. 4). Between the electronic device 10 </ b> A and the insertion / extraction direction (X direction). Hereinafter, the handle 40 of the present embodiment will be specifically described.

The handle 40 of the present embodiment is mainly composed of a bent plate material, and has a plate-like handle main body portion 41 arranged to face the outer surface 21 a of the front plate 21, and the handle main body portion 41 to the front plate 21. And a restricting plate portion 42 extending toward the surface. Moreover, the handle 40 of this embodiment is provided with the handle attachment part 43 which attaches this to the housing | casing 20 so that a movement to a X direction is possible.
The handle main body 41 is formed in a strip shape extending in the height direction (Z direction) of the housing 20. The handle main body 41 is arranged on the outer surface 21 a of the front plate 21 so that the plate thickness direction coincides with the plate thickness direction of the front plate 21.

The restricting plate portion 42 is formed integrally with one end portion in the width direction of the handle main body portion 41 (in the illustrated example, the end portion in the width direction of the handle main body portion 41 located on the inner side in the width direction of the front plate 21). It is bent perpendicularly to the handle main body 41 by bending.
The restricting plate portion 42 is arranged so that the thickness direction thereof coincides with the width direction of the front plate 21. Further, the regulating plate portion 42 is inserted into the housing 20 through the slit hole 23 formed in the front plate 21.

  Further, the restricting plate portion 42 is formed with an insertion hole 47 penetrating in the plate thickness direction. The insertion hole 47 is disposed at a position spaced in the X2 direction from the outer surface 21a of the front plate 21 in a state where the handle 40 is disposed at the grippable position 40A illustrated in FIG. Further, the insertion hole 47 is disposed at a position close to the outer surface 21a of the front plate 21 in a state in which the handle 40 is disposed at the ungripable position 40B illustrated in FIG. The insertion hole 47 of this embodiment is formed in a slit shape extending in the height direction (Z direction) of the housing 20.

The handle attachment portion 43 includes a pair of attachment plate portions 44 that are integrally formed at both ends in the longitudinal direction of the handle main body portion 41, and a rod-shaped shaft portion 45 provided on each attachment plate portion 44.
Each mounting plate portion 44 is bent in a stepped manner with respect to the handle main body portion 41, and is thus displaced from the handle main body portion 41 in the insertion direction (X1 direction) of the electronic device 10A. Each mounting plate portion 44 is arranged to face the outer surface 21 a of the front plate 21 in the same manner as the handle main body portion 41.
Each shaft portion 45 protrudes from the mounting plate portion 44 in the insertion direction (X1 direction) of the electronic device 10 </ b> A, and is inserted into the housing 20 from the outer surface 21 a side of the front plate 21. Thereby, the handle 40 can be moved with respect to the housing 20 in the longitudinal direction of the shaft portion 45, that is, in the insertion / extraction direction of the electronic device 10 </ b> A. A flange 46 is formed at the front end of the shaft portion 45 in the protruding direction, and prevents the shaft portion 45 from falling off to the outer surface 21a side of the front plate 21.

In the state where the handle 40 having the above-described configuration is arranged at the ungripable position 40B shown in FIG. 4, the mounting plate portion 44 abuts on the outer surface 21a of the front plate 21 and the gap between the outer surface 21a of the front plate 21 and the handle main body portion 41. The gap becomes narrow to such an extent that the operator's fingers cannot be inserted.
On the other hand, in the state where the handle 40 is disposed at the grippable position 40A shown in FIG. 2, the mounting plate portion 44 is separated from the outer surface 21a of the front plate 21, and in the gap between the outer surface 21a of the front plate 21 and the handle main body portion 41. The gap is wide enough to insert the operator's fingers.

  Further, the electronic device 10A of the present embodiment has a biasing member 50 that biases the handle 40 (particularly, the handle main body 41 and the mounting plate 44) having the above-described configuration in a direction (X1 direction) approaching the outer surface 21a of the front plate 21. Is provided. The biasing member 50 of the present embodiment is a coil spring, and is attached to a portion between the flange 46 of each shaft portion 45 and the inner surface 21 b of the front plate 21. The urging force of the urging member 50 is separated from the outer surface 21a of the front plate 21 by hooking the operator's fingers on the handle main body 41 in a state where the handle 40 is disposed at the ungrasping position 40B shown in FIG. It is adjusted to such an extent that it can be moved in the direction (X2 direction).

  The electronic device 10A of the present embodiment aims to prevent the electronic device 10A from being pulled out of the rack 1 in a state where a current flows between the electronic device 10A and the rack 1 (live line state). An interlock structure 60A is provided. The interlock structure 60 </ b> A includes a handle restricting portion 61 and a switch restricting portion 62.

The handle restricting portion 61 is a front plate between a movement restricting position 61B (see FIG. 4) that fixes the handle 40 to the ungrasping position 40B and a movement allowable position 61A (see FIG. 2) that allows the handle 40 to move. 21 is provided so as to be movable along the outer surface 21a.
The handle restricting portion 61 of the present embodiment is mainly switched between the handle 40 (particularly the handle main body portion 41 and the restricting plate portion 42) arranged in the width direction of the front plate 21 in the outer surface 21a of the front plate 21. It is arranged in a region between the switch 30 (and the opening 22 of the front plate 21 that exposes the changeover switch 30 to the outside). Further, the handle restricting portion 61 is arranged with no gap with respect to the outer surface 21 a of the front plate 21. The handle restricting portion 61 of the present embodiment is formed in a flat plate shape, and is disposed so as to overlap the outer surface 21 a of the front plate 21.

The handle restricting portion 61 is integrally provided with a rod-like connecting portion 65 for connecting to a switch restricting portion 62 described later. The connecting portion 65 is inserted through a sliding hole (hole) 24 formed through the front plate 21. The sliding hole 24 is a long hole extending in the width direction of the front plate 21. With the connecting portion 65 and the sliding hole 24, the handle restricting portion 61 can be moved in the width direction (Y direction) of the front plate 21.
Further, the handle restricting portion 61 of the present embodiment has an operation portion 63 that protrudes from the outer surface 21 a of the front plate 21. The operation portion 63 is formed by bending at a right angle with respect to the flat plate portion of the handle restricting portion 61. The operator can easily move the handle restricting portion 61 in the width direction of the front plate 21 by hooking the finger on the operation portion 63. The operation unit 63 of the present embodiment is formed at a side end portion on the front side in the movement direction of the handle regulation unit 61 to the movement allowable position 61 </ b> A in the flat plate portion of the handle regulation unit 61.

The handle restricting portion 61 configured as described above includes the movement restricting position 61B illustrated in FIG. 4 and the movement allowable position illustrated in FIG. 2 in a state where the handle 40 is disposed at the ungrasping position 40B as illustrated in FIG. It can move in the width direction of the front plate 21 between 61A.
In the present embodiment, as shown in FIG. 4, the insertion hole 47 of the restricting plate portion 42 is disposed at a position close to the outer surface 21 a of the front plate 21 in a state where the handle 40 is disposed at the ungrasping position 40 </ b> B. When the handle restricting portion 61 is moved from the movement allowable position 61A shown in FIG. 2 toward the movement restricting position 61B shown in FIG. 4, the handle restricting portion 61 is inserted into the insertion hole 47, so that the handle restricting portion 61 is inserted. Can be moved to the movement restricting position 61B shown in FIG.

When the handle restricting portion 61 is inserted through the insertion hole 47, the handle restricting portion 61 is engaged with the handle 40 even if the handle 40 is moved to the grippable position 40 </ b> A. It cannot be moved from the impossible position 40B to the grippable position 40A.
As shown in FIG. 2, in the state where the handle 40 is disposed at the grippable position 40 </ b> A, the insertion hole 47 of the restricting plate portion 42 is positioned away from the outer surface 21 a of the front plate 21, and thus the handle restricting portion 61. Cannot be moved from the movement allowable position 61A shown in FIG. 2 toward the movement restricting position 61B shown in FIG. That is, the movement of the handle restricting portion 61 to the movement restricting position 61 </ b> B is restricted by the restricting plate portion 42 of the handle 40.

As shown in FIGS. 2 to 5, the switch restricting portion 62 is provided integrally with the handle restricting portion 61 described above. The switch restricting portion 62 is a switching permissible position 62B (FIGS. 4 and 5) that permits the switching operation of the changeover switch 30 from the non-conducting position 30A to the conducting position 30B with the handle restricting portion 61 disposed at the movement restricting position 61B. Reference). Further, the switch restricting portion 62 is disposed at a switch restricting position 62A (see FIGS. 2 and 3) that restricts the switching operation of the changeover switch 30 in a state where the handle restricting portion 61 is disposed at the movement allowable position 61A. The switch restricting portion 62 is movable along with the handle restricting portion 61 along the outer surface 21a of the front plate 21 between the switching allowable position 62B and the switching restricting position 62A.
Further, in a state in which the changeover switch 30 is arranged at the non-conduction position 30A, the switch restricting portion 62 can move between the change restricting position 62A and the permissible changeover position 62B. On the other hand, in a state where the switch restricting portion 62 is arranged at the switch allowing position 62B and the changeover switch 30 is arranged at the conducting position 30B, the changeover switch 30 moves the switch restricting portion 62 to the switch restricting position 62A. regulate.
Hereinafter, the switch restriction part 62 of the present embodiment will be specifically described.

The switch restricting portion 62 of the present embodiment is made of an elastically deformable material (for example, a lightweight and soft resin material). Further, the switch restricting portion 62 is disposed on the inner surface 21 b of the front plate 21 and is fixed to the handle restricting portion 61 by a connecting portion 65 inserted through the sliding hole 24 of the front plate 21. Thereby, the switch restricting part 62 is movable in the width direction of the front plate 21 together with the handle restricting part 61.
Furthermore, the switch restricting portion 62 of the present embodiment is formed in a plate shape that can enter the gap between the reference surface 30a of the changeover switch 30 and the inner surface 21b of the front plate 21. Further, the switch restricting portion 62 is formed so as to enter the region where the second protrusion 32 of the changeover switch 30 protrudes from the reference surface 30a in the gap.

  In the state where the switch restricting portion 62 provided as described above is disposed at the switch restricting position 62A as shown in FIGS. 2 and 3, the switch 30 is electrically connected to the change switch 30 disposed at the non-conducting position 30A. It is located on the front side in the movement direction to the position 30B. Specifically, the switch restricting portion 62 enters the gap between the reference surface 30a of the changeover switch 30 and the inner surface 21b of the front plate 21, and is on the second protrusion 32 disposed at a position that does not protrude from the reference surface 30a. To position. For this reason, even if it tries to move the changeover switch 30 to the conduction position 30B, the second protrusion 32 of the changeover switch 30 abuts against the switch restricting part 62, so that the changeover switch 30 cannot be moved to the conduction position 30B.

  On the other hand, in the state in which the switch restricting portion 62 is disposed at the switching allowable position 62B as shown in FIGS. It arrange | positions in the position adjacent to the width direction of the front board 21 with respect to the area | region which protrudes. That is, since the switch restricting portion 62 is located outside the operating region of the changeover switch 30 that moves between the conduction position 30B and the non-conduction position 30A, the changeover switch 30 is placed between the conduction position 30B and the non-conduction position 30A. It can be moved with.

  As shown in FIGS. 4 and 5, in the state where the switch restricting portion 62 is arranged at the switching allowable position 62B and the changeover switch 30 is arranged at the conduction position 30B, the second protrusion 32 of the changeover switch 30 is the reference. It protrudes from the surface 30a and is located on the front side in the movement direction of the switch restricting portion 62 to the switching restricting position 62A. For this reason, even if the switch restricting portion 62 is to be moved to the switching restricting position 62A, the switch restricting portion 62 comes into contact with the side portion of the second protrusion 32, and the switch restricting portion 62 is changed from the switching allowable position 62B to the switching restricting position 62A. Cannot be moved to. That is, the changeover switch 30 restricts the movement of the switch restricting portion 62 to the change restricting position 62A.

Next, the operation of the electronic apparatus 10A having the above configuration will be described.
For example, in a state where the electronic device 10A is accommodated in the rack 1, when the changeover switch 30 is arranged at the conduction position 30B and current is passed between the electronic circuit of the electronic device 10A and the rack 1, FIGS. As shown, after the handle 40 is disposed at the ungrasping position 40B, the handle restricting portion 61 may be disposed at the movement restricting position 61B and the switch restricting portion 62 may be disposed at the switching allowable position 62B. In the present embodiment, since the handle 40 is urged by the urging member 50 from the grippable position 40A toward the non-gripable position 40B, an external force against the urging force of the urging member 50 is applied to the handle 40. Unless otherwise, the handle 40 is held at the ungripable position 40B by the urging force of the urging member 50.

In this state, the handle 40 is fixed to the ungrabbable position 40B by the handle restricting portion 61, so that even if the operator hooks his / her finger on the handle main body 41, the handle main body 41 is moved to the graspable position 40A. The operator's fingers cannot be inserted between the front plate 21 and the handle main body 41. Therefore, the operation of pulling out the electronic device 10A from the rack 1 is prevented.
In the above state, if the changeover switch 30 is moved to the conduction position 30B, the second protrusion 32 of the changeover switch 30 is positioned on the front side in the movement direction of the switch restriction portion 62 to the changeover restriction position 62A. The handle restricting portion 61 integrated with the restricting portion 62 is also prevented from moving from the movement restricting position 61B to the movement allowable position 61A. Therefore, in a state where a current flows between the electronic circuit of the electronic device 10A and the rack 1 (live line state), the operation of pulling out the electronic device 10A from the rack 1 can be reliably prevented.

On the other hand, when the electronic device 10A accommodated in the rack 1 is pulled out from the rack 1, as shown in FIGS. 2 and 3, the handle switch 61 is moved after the changeover switch 30 is moved to the non-conduction position 30A. What is necessary is just to move the switch restriction | limiting part 62 to the switching restriction | limiting position 62A while moving to the permissible position 61A.
In this state, the operator can hook his / her fingers on the handle body 41 and move the handle body 41 to the grippable position 40 </ b> A against the biasing force of the biasing member 50. Thereby, since an operator's finger can be inserted between the front board 21 and the handle main-body part 41, 10 A of electronic devices can be pulled out from the rack 1. FIG.
Further, in this state, since the movement of the changeover switch 30 to the conduction position 30B is blocked by the switch restricting portion 62, it is possible to prevent the electronic circuit of the electronic device 10A from becoming a conduction state.

  As described above, according to the electronic apparatus 10A of the present embodiment, only one of the operation of switching the conduction state of the electronic circuit of the electronic apparatus 10A by the changeover switch 30 and the operation of pulling out the electronic apparatus 10A from the rack 1 is permitted. And the other can be blocked. Therefore, it is possible to prevent the electronic device 10A from being pulled out from the rack 1 in a live line state in which a current flows between the electronic device 10A and the rack 1.

  Further, according to the electronic apparatus 10A of the present embodiment, the handle restricting portion 61 is arranged without a gap between the front plate 21 and the outer surface 21a, so that in the state shown in FIGS. It is possible to prevent the handle restricting portion 61 from being caught unexpectedly. Accordingly, it is possible to prevent the changeover switch 30 (especially the second protrusion 32) from being stressed by an unexpected external force, and to prevent the changeover switch 30 and the electronic circuit of the electronic device 10A connected thereto from being defective. it can. This effect is particularly useful when the changeover switch 30 is a seesaw switch having a light and simple structure, as in the present embodiment.

  Further, according to the electronic apparatus 10A of the present embodiment, the switch restricting portion 62 is made of an elastically deformable material. Therefore, in the state shown in FIGS. Even if the pressing force acts on the second projecting portion 32), the switch restricting portion 62 is elastically deformed, whereby the stress relating to the changeover switch 30 can be reduced.

  Furthermore, according to the electronic apparatus 10A of the present embodiment, the switch restricting portion 62 is disposed on the inner side of the housing 20 (on the inner surface 21b side of the front plate 21). 31 and 32) need not be arranged so as to protrude from the outer surface 21a of the front plate 21. Therefore, it is possible to prevent the operator from touching the changeover switch 30 unexpectedly.

  Further, according to the electronic apparatus 10A of the present embodiment, the handle 40 is automatically arranged at the ungrasping position 40B by the urging force of the urging member 50, and accordingly, the insertion hole 47 formed in the handle 40. Is automatically arranged at a position close to the outer surface 21 a of the front plate 21. This eliminates the need for the operator to move the handle 40 to the non-gripable position 40B in order to move the handle restricting portion 61 from the movement allowable position 61A to the movement restricting position 61B and insert it into the insertion hole 47. Handling of the device 10A becomes easy.

  Furthermore, according to the electronic device 10A of the present embodiment, when the electronic device 10A is pulled out from the rack 1, the handle 40 is arranged at the grippable position 40A, so that the handle restricting portion 61 moves to the movement restricting position 61B. Is regulated by the regulating plate portion 42 of the handle 40. For this reason, the switch restricting portion 62 provided integrally with the handle restricting portion 61 is held at the switching restricting position 62A. Therefore, it is possible to reliably prevent the change-over switch 30 from unexpectedly moving to the conduction position 30B during the drawing operation.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIGS.
In this embodiment, compared with the electronic apparatus 10A of the first embodiment, only a partial configuration of the interlock structure is different, and the other configurations are the same as those of the first embodiment. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
As shown in FIGS. 6 to 9, the interlock structure 60 </ b> B provided in the electronic apparatus 10 </ b> B of this embodiment includes a handle restricting portion 61 and a switch restricting portion 62 similar to those in the first embodiment. Furthermore, the interlock structure 60 </ b> B of the present embodiment includes a cover portion 66.

The cover portion 66 includes a covering position 66B (see FIGS. 8 and 9) that covers at least a part of the changeover switch 30 so as to restrict movement of the changeover switch 30 to the nonconductive position 30A, and a nonconductive position 30A of the changeover switch 30. It is provided so as to be movable along the outer surface 21a of the front plate 21 between the retraction position 66A (see FIGS. 6 and 7) that exposes the changeover switch 30 to the outside so as to allow the movement to the position. Further, the cover portion 66 plays a role of holding the handle restricting portion 61 at the movement restricting position 61B in the state of being disposed at the covering position 66B, and the handle restricting portion 61 at the position of allowing movement 61A in the state of being disposed at the retracting position 66A. Play a role in holding.
Hereinafter, the cover portion 66 of the present embodiment will be specifically described.

The cover portion 66 of the present embodiment is formed in a flat plate shape and is disposed so as to overlap the outer surface 21 a of the front plate 21.
Moreover, the cover part 66 is attached so that a movement in the height direction (Z direction) of the front board 21 (housing | casing 20) is possible. In the present embodiment, a long hole 661 formed in the cover portion 66 and extending in the height direction of the front plate 21, and a pin 25 protruding from the outer surface 21 a of the front plate 21 and inserted into the long hole 661 of the cover portion 66. The cover part 66 is movable in the height direction of the front plate 21.

The retracted position 66A of the cover portion 66 in the present embodiment is a position moved upward from the covering position 66B that covers the opening 22 of the front plate 21.
As shown in FIGS. 6 and 7, the cover portion 66 of the present embodiment covers the first protrusion 31 of the changeover switch 30 in a state of being disposed at the retracted position 66 </ b> A. In this state, since the operator cannot press the first protrusion 31 of the changeover switch 30 arranged at the non-conduction position 30A, the movement of the changeover switch 30 to the conduction position 30B is prevented.
Moreover, the cover part 66 of this embodiment covers the 2nd projection part 32 of the changeover switch 30 in the state arrange | positioned in the coating | coated position 66B, as shown to FIG. In this state, since the operator cannot push the second protrusion 32 of the changeover switch 30 arranged at the conduction position 30B, the changeover switch 30 is prevented from moving to the non-conduction position 30A.

Furthermore, in the configuration of the present embodiment, as shown in FIG. 6, when the handle restricting portion 61 is disposed at the movement allowable position 61A and the cover portion 66 is disposed at the retracted position 66A, The portion (the portion where the operation portion 63 is formed) enters the moving region of the cover portion 66 and is positioned adjacent to the lower end side of the cover portion 66. For this reason, the cover part 66 cannot be moved from the retracted position 66A to the covering position 66B. That is, in this state, the cover portion 66 is held at the retracted position 66 </ b> A by the handle restricting portion 61.
On the other hand, as shown in FIG. 8, in the state where the handle restricting portion 61 is arranged at the movement restricting position 61 </ b> B and the cover portion 66 is arranged at the covering position 66 </ b> B, a part of the cover portion 66 is part of the handle restricting portion 61. It enters the movement area and is positioned adjacent to the front side in the movement direction of the handle restricting portion 61 to the movement allowable position 61A. For this reason, the handle restricting portion 61 cannot be moved from the movement restricting position 61B to the movement allowable position 61A. That is, in this state, the handle restricting portion 61 is held at the movement restricting position 61B by the cover portion 66.

  Further, as shown in FIGS. 6 to 9, the cover portion 66 of the present embodiment is formed with an opening portion 67 penetrating in the thickness direction. The opening 67 serves to expose the first protrusion 31 of the changeover switch 30 to the outside in a state where the cover 66 is disposed at the covering position 66B.

  Further, the cover portion 66 of the present embodiment is formed with a locking portion 68 for locking the handle restricting portion 61 disposed at the movement allowable position 61A. The locking portion 68 of the present embodiment is formed to be recessed inward from the lower end of the cover portion 66. With this configuration, as shown in FIG. 6, in the state where the cover 66 is disposed at the retracted position 66A and the handle restricting portion 61 is disposed at the movement allowable position 61A, the operation portion of the handle restricting portion 61 is provided. The upper end portion of 63 enters the locking portion 68 of the cover portion 66 and is locked. Thereby, the movement of the handle restricting portion 61 to the movement restricting position 61B is prevented, and the handle restricting portion 61 is held at the movement allowable position 61A.

The operation of the electronic apparatus 10B of the present embodiment configured as described above is substantially the same as that of the first embodiment.
For example, in the state where the electronic device 10B is accommodated in the rack 1 (see FIG. 1), as shown in FIGS. 8 and 9, the handle 40 is disposed at the ungrasping position 40B and the handle restricting portion 61 is moved to the movement restricting position. If the switch restricting portion 62 is disposed at the switching allowable position 62B while being disposed at 61B, the operation of pulling out the electronic device 10B from the rack 1 can be prevented. In this state, if the changeover switch 30 is moved to the conduction position 30B, the handle restricting portion 61 is also prevented from moving from the movement restricting position 61B to the movement allowable position 61A. Therefore, it is possible to prevent the electronic device 10B from being pulled out of the rack 1 in a live line state in which a current flows between the electronic device 10B and the rack 1.

Furthermore, in the electronic device 10B of the present embodiment, the cover switch 66 is disposed at the covering position 66B by its own weight in the state where the handle restricting portion 61 is disposed at the movement restricting position 61B as described above. The second protrusion 32 is covered with the cover 66. Thereby, it can prevent that an operator's finger | toe etc. touches the 2nd projection part 32 of the changeover switch 30 unexpectedly, and the electronic circuit of the electronic device 10B becomes a non-conductive state unexpectedly.
Even when the cover portion 66 is disposed at the covering position 66B, the first protrusion 31 of the changeover switch 30 is exposed to the outside through the opening 67 of the cover portion 66, so that the changeover switch 30 is set to the conduction position 30B. It is possible to move to.

  Further, in the state where the cover portion 66 is disposed at the covering position 66B, the handle restricting portion 61 is held at the movement restricting position 61B by the cover portion 66, and therefore, the switch restricting portion 62 formed integrally with the handle restricting portion 61. Is prevented from unexpectedly moving to the switching restriction position 62A. For this reason, for example, in a state where the changeover switch 30 is arranged at the conduction position 30B and the second protrusion 32 of the changeover switch 30 is located on the front side in the movement direction of the switch restriction portion 62 to the changeover restriction position 62A. Even if an unexpected external force that moves the switch restricting portion 62 to the switch restricting position 62A acts on the handle restricting portion 61, the switch restricting portion 62 can be reliably prevented from coming into contact with the second protrusion 32 of the changeover switch 30.

On the other hand, when the electronic device 10B is pulled out from the rack 1, as in the first embodiment, as shown in FIGS. 6 and 7, the cover 66 is moved to the retracted position 66A, and the changeover switch 30 is further moved. After moving to the non-conduction position 30A, the handle restricting portion 61 may be disposed at the movement allowable position 61A and the switch restricting portion 62 may be moved to the switching restricting position 62A.
In this state, the operator can move the handle 40 to the grippable position 40A and insert the operator's fingers between the front plate 21 and the handle main body 41, as in the first embodiment. The device 10B can be pulled out from the rack 1. Further, in this state, the movement of the changeover switch 30 to the conduction position 30B is restricted by the switch restricting portion 62, and the cover portion is provided so that the operator's fingers and the like do not touch the first protrusion 31 of the changeover switch 30. Since 66 covers the 1st projection part 31, it can prevent reliably that the electronic circuit of the electronic device 10B will be in a conduction | electrical_connection state.

  Further, in the electronic device 10B of the present embodiment, in the above-described state, the operation portion 63 of the handle restricting portion 61 is locked to the locking portion 68 of the cover portion 66, and the handle restricting portion 61 is held at the movement allowable position 61A. Is done. For this reason, it can prevent reliably that the switch control part 62 integrally provided in the handle control part 61 moves to the switching permissible position 62B unexpectedly.

According to the electronic device 10B of the present embodiment, the same effects as those of the first embodiment can be obtained.
Further, according to the electronic device 10B of the present embodiment, when the electronic device 10B is accommodated in the rack 1 and the cover portion 66 is disposed at the covering position 66B, the changeover switch 30 is moved to the non-conduction position 30A. Since it is regulated, it is possible to prevent the operator's finger from suddenly touching the changeover switch 30 and the electronic circuit from being unexpectedly turned off. Therefore, it is possible to reliably prevent an unexpected system down of the apparatus including the electronic device 10B and the rack 1.

  Further, in a state where the cover part 66 is arranged at the covering position 66B, the handle restricting part 61 is held at the movement restricting position 61B by the cover part 66, so that the switch restricting part 62 provided integrally with the handle restricting part 61 is provided. Can be reliably prevented from coming into contact with the second protrusion 32 of the changeover switch 30. Therefore, it is possible to reliably prevent stress from being applied to the changeover switch 30 (particularly the second protrusion 32).

  On the other hand, in the state where the cover portion 66 is arranged at the retracted position 66A, the handle restricting portion 61 is held at the movement allowable position 61A, and therefore the switch restricting portion 62 provided integrally with the handle restricting portion 61 is switched unexpectedly. It is possible to reliably prevent the movement to the allowable position 62B. Therefore, it is possible to reliably prevent the changeover switch 30 from moving to the conduction position 30B.

  In the second embodiment described above, the pair of inner side surfaces of the locking portion 68 formed to be recessed from the lower end of the cover portion 66 extends along the height direction of the front plate 21, but this is not limitative. There is nothing. For example, as shown in FIG. 10, one inner surface of the locking portion 68 that contacts the operation portion 63 and prevents the handle restricting portion 61 from moving to the movement restricting position 61 </ b> B is formed in the height direction of the front plate 21 ( The inclined surface 68a may be inclined in the moving direction to the movement restricting position 61B of the handle restricting portion 61 from the bottom of the locking portion 68 toward the opening end along the Z direction.

In this configuration, as shown in FIG. 10, in the state where the cover 66 is disposed at the retracted position 66A and the handle restricting portion 61 is disposed at the movement allowable position 61A, the handle restricting portion 61 is engaged as in the above embodiment. The stopper 68 is held at the movement allowable position 61A. However, if the operator's fingers are hooked on the operation portion 63 of the handle restricting portion 61 and the handle restricting portion 61 is moved toward the movement restricting position 61B with a predetermined force or more, the upper end portion of the operation portion 63 is locked. When pressed against the inclined surface 68a of the portion 68, the cover portion 66 moves further upward from the retracted position 66A. Thereby, the upper end part of the operation part 63 comes out from the latching | locking part 68, and the handle control part 61 can be moved to the movement control position 61B. When the handle restricting portion 61 moves to the movement restricting position 61B, the cover portion 66 moves downward from the retracted position 66A to the covering position 66B by its own weight.
In other words, in the configuration shown in FIG. 10, the cover 66 can be moved from the retracted position 66A to the covering position 66B simply by moving the handle restricting portion 61 from the movement allowable position 61A to the movement restricting position 61B. Is easier to handle.
Further, the cover portion 66 of the second embodiment is formed with an opening 67 for exposing the first protrusion 31 of the changeover switch 30 to the outside in a state where the cover portion 66 is arranged at the covering position 66B. However, the opening 67 may not be formed, for example.

Although the details of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.
For example, in the said embodiment, although the handle control part 61 is formed in flat form, it should just be distribute | arranged at least between the outer surfaces 21a of the front board 21, and may be formed in rod shape, for example. In this case, the rod-shaped handle restricting portion 61 may be arranged on the outer surface 21 a of the front plate 21 so that the longitudinal direction thereof coincides with the moving direction of the handle restricting portion 61. In this case, the insertion hole 47 of the restricting plate portion 42 of the handle 40 may be formed in a shape corresponding to the cross-sectional shape orthogonal to the axial direction of the handle restricting portion 61.

DESCRIPTION OF SYMBOLS 1 Rack 10A, 10B Electronic device 20 Case 21 Front plate 21a Outer surface (main surface)
21b Inner surface (main surface)
22 Opening 24 Sliding hole (hole)
30 switch 30A non-conduction position 30B conduction position 40 handle 40A grippable position 40B grip impossible position 41 handle body part 42 restricting plate part 47 insertion hole 60A, 60B interlock structure 61 handle restriction part 61A movement allowable position 61B movement restriction position 62 switch restricting portion 62A switching restricting position 62B switching permitting position 65 connecting portion 66 cover portion 66A retracting position 66B covering position 67 opening 68 locking portion 68a inclined surface

Claims (5)

A housing that has an electronic circuit inside and is housed so that it can be inserted into and removed from the rack in one direction, and is provided on the front plate side of the housing that is exposed to the outside in a state of housing the housing in the rack. An electronic device comprising: a changeover switch that switches between a conduction state and a non-conduction state of the electronic circuit; and a handle provided to protrude outward from the front plate,
The changeover switch is movable between a conduction position for bringing the electronic circuit into a conduction state and a non-conduction position for bringing the electronic circuit into a non-conduction state;
The handle is movable in the one direction between a grippable position in which a finger can be inserted between the handle and the front plate, and a non-gripable position in which the finger cannot be inserted,
further,
A handle restricting portion provided so as to be movable along the main surface of the front plate between a movement restricting position for fixing the handle at a position where the handle cannot be gripped and a movement permissible position allowing the handle to move;
as well as,
A switching permissible position that is provided integrally with the handle restricting portion and allows the switching operation of the changeover switch from a non-conducting position to a conducting position in a state where the handle restricting portion is disposed at the movement restricting position; A switch restricting portion provided so as to be movable along the main surface of the front plate between a change restricting position for restricting a changeover operation of the changeover switch in a state where the portion is arranged at the movement allowable position. ,
The switch restricts the movement of the switch restricting portion to the switch restricting position in a state where the switch restricting portion is disposed at the switch permitting position and the switch is disposed at the conduction position. With interlock structure,
The electronic apparatus according to claim 1, wherein the handle restricting portion is disposed between the outer surface of the front plate without a gap.   The electronic device according to claim 1, wherein the switch restricting portion is made of an elastically deformable material. The interlock structure is
Covering at least a part of the changeover switch so as to restrict the movement of the changeover switch to the non-conduction position, and holding the handle restricting portion at the movement restriction position, and to the non-conduction position of the changeover switch A cover portion that is provided so as to be movable along the main surface of the front plate between the changeover switch exposed to the outside so as to allow movement of the front plate and a retracted position that holds the handle restricting portion at the movement allowable position. The electronic apparatus according to claim 1, further comprising: The switch restricting portion is disposed on an inner surface of the front plate;
The said handle control part and the said switch control part are mutually fixed by the connection part inserted in the hole penetrated to the said front board, The Claim 1 characterized by the above-mentioned. Electronics. The handle includes a handle main body portion arranged to face the outer surface of the front plate, and a regulating plate portion extending from the handle main body portion toward the front plate,
The restricting plate portion is formed with an insertion hole penetrating in the thickness direction,
2. The handle restricting portion is inserted into the insertion hole by moving the handle restricting portion to the movement restricting position in a state where the handle is arranged at the ungrasping position. The electronic device according to claim 4.

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