JP2019200881A - Handle lock device for circuit breaker - Google Patents

Abstract

To obtain a handle lock device capable of preventing an error operation without inhabiting workability.SOLUTION: A handle lock device comprises: a handle fixing part 2 that includes a concave-like cap part 2c that opens to one end part of a frame part 2w, and an extension part 2e extended oblique to one end part from the other end part of the frame part 2w, and in which an insertion hole 2hl is formed, and is structured so as to be covered to a handle 8 by an operation of a vertical direction; and a lock part 3 that includes a plate-like part 3t having an opposite surface 3fh to a surface 2fv of the extension part 2e and in which an insertion hole 3h is formed, and a pin-like part 3p, and is structured so as to be assembled in a circuit breaker to be covered with the handle fixing part 2 by the operation in a lateral direction. In the cap part 2c, a communication hole 2ch communicated to a penetration hole 8h of the handle 8 is provided, the pin-like part 3p is fitted into the penetration hole 8h via the communication hole 2ch, and the insertion hole 3h is communicated with the insertion hole 2hl.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a handle lock device for a switch having a manually operated handle for opening and closing a circuit contact.

  As a means for preventing an erroneous operation of a handle for switching ON and OFF in a switch such as a circuit breaker or an earth leakage breaker, a handle lock device using a padlock has been conventionally proposed in order to fix the movement of the handle. For example, in a handle lock device (see, for example, Patent Document 1) in which a plate having an insertion hole at a predetermined position is attached to the main body so as to stand along the side of the handle (see, for example, Patent Document 1), The movement is regulated.

  Also, a handle lock device in which a through-hole in the front-rear direction is formed in the grip portion of the handle and a base that fits into the opening from which the handle protrudes and a cap-shaped member that covers the handle are integrally molded (for example, Patent Literature 2) has also been proposed. In this handle lock device, a U-shaped notch that overlaps the through hole is formed in the cap-shaped portion, and the handle lock device is prevented from being pulled out by inserting a padlock into the through hole, and the movement of the handle is restricted at the base portion. .

JP 2008-186644 (paragraphs 0004 to 0005, 0013 to 0017, FIGS. 5 to 6, and FIGS. 1 to 4) JP 2010-160924 A (paragraphs 0010 to 0015, FIGS. 1 to 5)

  However, in the configuration in which the plate is attached to the side of the handle, the circuit breaker having a narrow width may interfere with the adjacent circuit breaker and the padlock, and may not be locked. Or, in a configuration in which a padlock is passed through the handle's through-hole, if the vertical dimension is restricted, such as when the operation surface side is covered with the panel, the panel cannot be opened with the padlock still applied. There was a possibility that a bug would occur.

  The present invention has been made in order to solve the above-described problems, and provides a handle lock device that can prevent erroneous operation without impairing workability even in a circuit breaker having restrictions on width and vertical dimensions. The purpose is to get.

  The handle lock device for a switch according to the present invention is a handle lock device for fixing a handle for ON / OFF operation protruding from an opening provided on an operation surface of the switch, and surrounds the opening and presses the operation surface. A frame-shaped portion having a pressing surface, a cap portion that is open at one end of the frame-shaped portion on the pressing surface side, and is formed in a concave shape in accordance with the angle of the handle that is tilted to either ON / OFF; An extending portion that extends from the other end portion of the frame-shaped portion so as to be separated from the pressing surface toward the one end portion, and has an insertion hole that extends parallel to the operation track surface of the handle. And a first member configured to cover the cap portion on the handle by movement in a direction parallel to the operation track surface, and perpendicular to the operation track surface formed on the one end side of the extension portion. Opposite A plate-like portion having an opposing surface and having a through hole; and a pin-like portion extending in a direction parallel to the opposing surface and the pressing surface when the opposing surface is made to face the surface of the extending portion. And a second member configured to be incorporated into the switch covered with the first member by an operation in a direction perpendicular to the operation track surface, the cap portion of the first member includes A communication hole communicating with a through hole formed in the handle in a direction perpendicular to the operation track surface formed on the handle is provided, and the second switch is provided on the switch covered with the first member. When the member is assembled, the pin-shaped portion is fitted into the through-hole through the communication hole, and the through-hole communicates with the insertion hole.

  According to the handle lock device of the present invention, since the padlock latch is configured to pass through the hole provided inside the track of the handle, the workability is hindered even in a switch having restrictions on the width dimension and the vertical dimension. Thus, erroneous operation can be prevented.

It is a perspective view which shows the state before and behind the handle lock apparatus attachment of the handle lock apparatus concerning Embodiment 1 of this invention, and the circuit breaker which is an attachment object. It is the perspective view of the circuit breaker which is the attachment object of the handle lock apparatus concerning Embodiment 1 of this invention, and the partial side view of a handle periphery. It is an external view when the handle fixing part which is a 1st member which comprises the handle | steering-wheel locking apparatus concerning Embodiment 1 of this invention is seen from various angles. It is an external view when the lock part which is the 2nd member which comprises the handle | steering-wheel locking apparatus concerning Embodiment 1 of this invention is seen from each of various angles. It is a perspective view for every step at the time of attaching the handle lock device concerning Embodiment 1 of the present invention to a circuit breaker. It is a side view showing the situation of the circuit breaker which locked the handle using the handle lock device concerning Embodiment 1 of the present invention. It is an external view when the circuit breaker to which the handle lock device concerning Embodiment 1 of this invention is attached is seen from each of three directions. It is a partial side view of a handle periphery which shows the state at the time of attaching the handle | steering-wheel locking apparatus concerning Embodiment 1 of this invention in an ON state, and an OFF state.

Embodiment 1 FIG.
FIGS. 1-8 is for demonstrating the structure of the handle | steering-wheel locking apparatus concerning Embodiment 1 of this invention, FIG.1 (a), (b) is for showing the basic composition of a handle | steering-wheel locking apparatus, FIG. 2 is a perspective view showing a circuit breaker as an attachment target, and a situation before and after the attachment. FIG. 2 is a perspective view of the circuit breaker as an attachment target and an enlarged portion around the handle for covering the handle lock device. Side views (b) and FIGS. 3 (a) to 3 (e) are external views when the handle fixing portion as the first member is viewed from various angles in order to show the configuration of the handle lock device in detail, and FIG. 4 (a). (E) to (e) are external views when the lock portion as the second member is viewed from various angles in order to show the configuration of the handle lock device in detail. 3A and 3B, (a) to (c) are drawn in a six-surface layout based on trigonometry, and (d) and (e) Drawing is based on the conformal perspective relationship.

  FIGS. 5A to 5D are views for explaining a method of attaching the handle lock device to the circuit breaker, and are perspective views for each stage when the handle lock device is attached to the circuit breaker. FIG. Is a side view showing the situation of a circuit breaker in which the handle is locked using the handle lock device, and FIG. 7 is an external view when the circuit breaker to which the handle lock device is attached is viewed from each of three directions ((a): (B): side view, (c): front view), FIG. 8 shows a state (solid line) when the handle lock device is attached in the ON state and a state (dashed line) when attached in the OFF state. It is a partial side view around the handle shown.

  As shown in FIG. 1, the handle lock device 1 according to the first embodiment covers a manual handle 8 for ON / OFF operation protruding from an opening 9 a provided on the operation surface 9 fo of the circuit breaker 9. Thus, the movement of the handle 8 is fixed. Before describing the handle lock device 1 in detail, the circuit breaker 9 and the handle 8 to be installed will be described.

  As shown in FIG. 2, the circuit breaker 9 has a terminal (power supply terminal 92) for connecting a power supply side electric wire (not shown) at one end in the longitudinal direction (left side in the figure) of the box-shaped main body 91, A terminal (load terminal 93) for connecting a load-side electric wire (not shown) is formed (right side in the figure). The circuit breaker 9 is assumed to be installed on a vertical surface such as a wall surface, and in the actual installation situation, the longitudinal direction (the direction connecting the power terminal 92 and the load terminal 93) is the vertical direction. In some cases or in the horizontal direction, the longitudinal direction is referred to as the vertical direction (y direction) in this specification. The handle lock device 1 may also be described in accordance with the direction of the circuit breaker 9 when attached to the circuit breaker 9.

  A handle 8 housed inside the main body 91 for manually operating an opening / closing mechanism (not shown) protrudes from an opening 9 a provided on one of the surfaces connecting the power terminal 92 and the load terminal 93. The surface from which the handle 8 protrudes is referred to as an operation surface 9fo. A direction perpendicular to the vertical direction in a plane parallel to the operation surface 9fo is referred to as a width direction (x direction), and a direction perpendicular to the operation surface 9fo is referred to as a thickness direction (z direction). Note that a surface opposite to the operation surface 9fo is an installation surface, and, for example, a groove for attachment to an IEC rail or the like is provided.

  The handle 8 is formed so that a thick plate-like protrusion 8p having a thickness in the rotation direction protrudes from the opening 9a, and the rotation axis Xr parallel to the operation surface 9fo formed inside the main body 91 is centered. It is formed to rotate. The protrusion 8p is set to be turned off when it is tilted toward the load terminal 93 and turned on when it is tilted toward the power terminal 92. The tilt angle is basically set to be approximately the same for the OFF side and the ON side with respect to the surface perpendicular to the operation surface 9fo. For example, if the angle when the handle 8 (projecting portion 8p) of the handle 8 is tilted to the ON side with respect to the surface perpendicular to the operation surface 9fo and the angle when the handle 8 is tilted to the OFF side are α, the operation trajectory Ob8 of the handle 8 is It becomes a fan shape having a rotation angle range of 2α.

  The base portion 8b on the base side of the handle 8 has an arc shape and is located on the inner side of the opening 9a. When the handle 8 is tilted to the OFF side, the power terminal 92 of the arc-shaped base portion 8b is disposed. The surface on the side is exposed from the portion on the power supply terminal 92 side of the substantially rectangular opening 9a. Similarly, when tilted to the ON side, the surface on the load terminal 93 side of the arc-shaped root portion 8b is exposed from the portion on the load terminal 93 side of the opening 9a. On the other hand, a through-hole 8h that penetrates in the width direction that is perpendicular to the surface of the operation track Ob8 is formed in the vicinity of the base portion 8b of the protruding portion 8p, and protrudes from the operation surface 9fo regardless of which side it is tilted. Is located. Furthermore, although not penetrating, a recess 8c that is recessed in the width direction is also formed on the tip side of the protrusion 8p.

  Note that a substantially rectangular area Ape including the handle 8 in the operation surface 9fo indicates a range exposed from the opening (panel cut) of the panel when the circuit breaker 9 is covered with the panel.

<Handle lock device>
With respect to the handle 8 of the circuit breaker 9 configured as described above, the handle lock device 1 according to the present embodiment is configured by two members as shown in FIG. A handle fixing portion 2 (first member) that covers the handle 8 to restrict the movement of the handle 8 and a lock portion 3 (second member) that locks the handle fixing portion 2 so as not to come off the handle 8 using a padlock 7. It is.

  As shown in FIG. 3, the handle fixing portion 2 is formed in a frame shape so as to surround the opening 9a, and the handle 8 (protruding portion of the handle 8) is provided on one end side of the frame-like portion 2w having a pressing surface 2fp for pressing the operation surface 9fo. 8p) is formed with a cap portion 2c. The inner surface of the cap portion 2c is formed so as to incline toward the one end side from the intermediate portion as it moves away from the pressing surface 2fp in accordance with the angle when the handle 8 is tilted to either ON or OFF. That is, the angle with respect to the pressing surface 2fp is set to be the same as the angle α with respect to the operation surface 9fo of the handle 8. And the dimension of the inner surface of the cap part 2c is adjusted to such an extent that it does not rattle with respect to the outer peripheral surface of the protrusion part 8p.

  Note that the tip of the cap portion 2c is opened without covering the tip of the handle 8, so that the tip of the covered handle 8 is exposed. Further, an overhang portion 2x that protrudes from both sides in the width direction is formed at the tip of the cap portion 2c so as to be a grip allowance when being pulled out from the handle 8.

  Further, from both inner side surfaces on the other end side of the frame-like portion 2w, it protrudes from the pressing surface 2fp, and when the cap portion 2c is fitted into the handle 8, it fits into the inner side surface and the longitudinal end surface of the opening 9a. The fitting protrusion 2p which fits is formed.

  If the cap portion 2c and the pressing surface 2fp are provided, the handle fixing portion 2 is put on the handle 8 that is tilted to either side, so that the pressing surface 2fp hits the operating surface 9fo. Even if it can move to an intermediate position, it cannot be knocked down to the opposite side. Furthermore, if there is the fitting protrusion 2p, the fitting protrusion 2p hits the inner end surface on the opposite side of the opening 9a, so that the handle fixing portion 2 itself cannot be moved in the vertical direction.

  For example, if the handle fixing portion 2 is put on the handle 8 that is tilted to the ON side, the pressing surface 2fp and the fitting projection 2p come into contact with the operation surface 9fo and the inner peripheral surface of the opening 9a. It can no longer be defeated. Similarly, if the handle fixing portion 2 is put on the handle 8 tilted to the OFF side, the handle 8 cannot be operated and tilted to the ON side unless the handle fixing portion 2 is removed. That is, the operation of the handle 8 can be limited only by the handle fixing portion 2 as the first member. However, in order to prevent intentional handle operation with the handle fixing part 2 removed, the lock part 3 and the padlock 7 are used for locking.

  That is, a communication hole 2ch communicating with the through hole 8h of the protrusion 8p and an insertion hole 2hl for passing the latch 7k of the padlock 7 are formed. The communication hole 2ch communicates with the through hole 8h and continuously opens on one surface of the cap portion 2c which is also the side surface of the frame-shaped portion 2w so as to communicate with the recess 8c. The insertion hole 2hl extends inclined from the other end side of the frame-like portion 2w toward the intermediate portion so as to be separated from the pressing surface 2fp, and has a surface 2fv perpendicular to the surface of the operation track Ob8 (when attached). It is formed at the center in the width direction of the portion 2e. As a result, the insertion hole 2hl passes through in the direction parallel to the surface of the operation track Ob8 of the handle 8 and is disposed at a position inside the operating range of the handle 8. In addition, the extension part 2e is formed so that it may become parallel to the extraction angle ((alpha)) of the cap part 2c so that the metal mold | die structure at the time of shaping | molding may become easy.

  On the other hand, as shown in FIG. 4, the lock portion 3 is perpendicular to the surface of the operation track Ob8 (at the time of mounting), that is, parallel to the width direction of the circuit breaker 9 so as to face the surface 2fv of the extending portion 8e. It has the plate-shaped part 3t which has the opposing surface 3fh, and the pin-shaped part 3p which lets the through-hole 8h of the protrusion part 8p pass. A through hole 3h for allowing the latch 7k to pass therethrough is formed at the center in the width direction of the plate-like portion 3t. A second pin 3p2 parallel to the pin-like portion 3p is also formed corresponding to the recess 8c. The pin-shaped portion 3p, the second pin 3p2, and the plate-shaped portion 3t (the facing surface 3fh) are in a parallel relationship, and both extend in the same direction from different positions of the side wall portion 3s. Further, a first contact surface 3f1 that contacts one lower surface of the overhang portion 2x is formed in the vicinity of the portion where the second pin 3p2 of the side wall portion 3s is formed, and is separated from the side wall portion 3s of the plate-like portion 3t. A second contact surface 3f2 that contacts the other upper surface of the protruding portion 2x is formed in the portion.

Next, a method for locking the operation of the handle 8 of the circuit breaker 9 by combining the handle fixing portion 2 and the lock portion 3 described above will be described with reference to FIG.
First, the cap portion 2c of the handle fixing portion 2 is put on the handle 8 (ON side in FIG. 5A) that is tilted to either the ON / OFF side, and is pushed in until the pressing surface 2fp hits the operation surface 9fo. At this time, the communication hole 2ch of the handle fixing portion 2 and the through hole 8h of the protruding portion 8p of the handle 8 overlap. Furthermore, the communication hole 2ch communicates with the recess 8c (FIG. 5B).

  Next, the lock part 3 is moved in the width direction (arrow) with respect to the handle fixing part 2 (FIG. 5C). At this time, the opposing surface 3fh of the plate-like portion 3t described with reference to FIGS. 3 and 4 is along the surface 2fv of the extending portion 8e of the handle fixing portion 2, and the pin-like portion 3p is a through-hole of the handle 8. In 8h, the lock portion 3 is fitted from the side of the handle fixing portion 2 so that the second pin 3p2 fits into the recess 8c. That is, the handle breaker 2 covered by moving the circuit breaker 9 in a direction parallel to the surface of the operation track Ob8 is moved in a direction perpendicular to the operation track Ob8, and the lock portion 3 is fitted. Go.

  Then, as shown in FIG. 5D, the through hole 3h formed in the plate-like portion 3t and the insertion hole 2hl formed in the extending portion 2e of the handle fixing portion 2 overlap. Therefore, the latch 7k of the padlock 7 is passed through the overlapping through hole 3h and insertion hole 2hl. As shown in FIG. 6, when the latch 7k of the padlock 7 is fixed (locked) to the main body 7m, the plate-like portion 3t of the lock portion 3 is fixed to the extending portion 8e of the handle fixing portion 2, and the pin Since the shaped portion 3p (FIG. 4) is fitted in the through hole 8h of the handle 8, the lock portion 3 cannot be removed from the handle fixing portion 2. Further, the handle portion of the lock portion 3 is fixed by contact between one lower surface of the projecting portion 2x formed on both sides in the width direction and the first contact surface 3f1 and contact between the other upper surface and the second contact surface. The fixing to the part 2 is further strengthened.

  Thus, in the state where the lock portion 3 is fixed to the handle fixing portion by the padlock 7, the handle fixing portion is formed by the fitting of the pin-like portion 3p and the communication hole 2ch and the engagement between the insertion hole 2hl and the through hole 3h. 2 cannot be removed from the handle 8. That is, the handle operation cannot be performed. At this time, by providing the second pin 3p2 that fits into the concave portion 8c, the through-hole of the handle 8 is only when the cap portion 2c is put on the handle 8 without the pin-like portion 3p accidentally fitting into the concave portion 8c. 8h can be fitted.

  At this time, the insertion hole 2hl through which the latch 7k of the padlock 7 passes is formed in the extending portion 2e extending from the opposite side (the other end) to the intermediate portion from the side (one end) where the handle 8 is tilted. Similarly, the through hole 3h is formed in the plate-like portion 3t along the surface on one end side of the extending portion 2e. That is, the holes (insertion holes 2hl, through holes 3h) through which the latches 7k of the padlock 7 are passed are inside the operation track Ob8 when operating the handle 8 in the vertical direction (y direction) as shown in FIG. And it arrange | positions so that it may come out parallel to the operation track | orbit Ob8 surface. Moreover, the opening of the hole (insertion hole 2hl, through-hole 3h) through which the latch 7k is passed depends on the operation track Ob8 when operating the handle 8, that is, the center line, in the width direction (x direction).

  Therefore, the latch 7k and the main body 7m of the padlock 7 are within the region Ape exposed from the panel cut in the locked state. Further, since the front end of the handle 8 is open to the extent that the front end of the handle portion 8 is not exposed without covering the front end of the cap portion 2c, it is disposed in a portion close to the root when the panel is opened and closed, and the locus of the panel cut with respect to the perpendicular of the operation surface 9fo Even in a state in which the inclination of is increased, the trajectory can be kept within the range Apt. As a result, the panel can be opened and closed with the circuit breaker 9 disposed at any position in the panel locked. In other words, it is possible to perform inspections, repairs, etc. by opening and closing the panel while preventing the steering operation.

  That is, the hole through which the latch 7k is passed is provided at the position on the center side of the operation track Ob8 from the side where the handle is tilted in the vertical direction and is arranged so as to cover the center line of the handle 8 in the width direction. The protrusion from the handle 8 portion could be minimized. Further, by providing a hole through which the latch 7k is passed at a position on the center side of the operation track Ob8, as shown in FIG. 8, even when the handle 8 is tilted to the ON side, it is tilted to the OFF side. Even in such a case, the protrusion of the padlock 7 from the handle 8 portion can be minimized.

  In particular, the upper end surface (surface facing the operation surface 1fo) of the hole (insertion hole 2hl, through hole 3h) through which the latch 7k passes is ± 5 mm with respect to the surface perpendicular to the operation surface 1fo passing through the rotation axis Xr of the handle 8 If it is set to fall within the range, the effect becomes more certain.

  In addition, although the dimension of the inner surface of the cap part 2c showed the example which is a grade which does not touch the outer peripheral surface of the protrusion part 8p, it is desirable to make it closely_contact | adhere. Furthermore, it may be configured such that the handle fixing portion 2 is press-fitted into the handle 8 by making it smaller than the outer dimension of the protruding portion 8p. In this case, even before the lock portion 3 is covered, the handle fixing portion 2 does not fall from the circuit breaker 9, and the locking operation for a plurality of circuit breakers is facilitated. At that time, the resin material of the handle lock device 1 is preferably one having a hardness lower than that of the material constituting the protruding portion 8p. Note that the handle lock device 1 can be made known to be a circuit breaker 9 that is not normally operated by using a conspicuous color such as red or yellow.

  In the present embodiment, the circuit breaker 9 is described as an object, but the present invention is not limited to this. An earth leakage breaker or a switch that simply opens and closes may be targeted, and the circuit breaker, the earth leakage breaker, and the like are referred to as a “switch breaker” handle lock device.

  As described above, according to the switch lock device 1 for a switch according to the first embodiment of the present invention, the ON / OFF operation projecting from the opening 9a provided in the operation surface 9fo of the switch (circuit breaker 9). The handle lock device 1 for fixing the handle 8 includes a frame-like portion 2w that surrounds the opening 9a and has a pressing surface 2fp that holds down the operation surface 9fo, and an opening at one end of the frame-like portion 2w on the pressing surface 2fp side. Then, the cap portion 2c formed in a concave shape in accordance with the angle α of the handle 8 tilted to either ON / OFF, and inclined from the pressing surface 2fp toward the one end portion from the other end portion of the frame-like portion 2w. And an extending portion 2e formed with an insertion hole 2hl extending parallel to the surface of the operation track Ob8 of the handle 8, and the cap portion 2c is handled by the movement in the direction parallel to the surface of the operation track Ob8. A handle fixing portion 2 which is a first member configured to cover the surface, an opposing surface 3fh opposed to the surface 2fv perpendicular to the surface of the operation track Ob8 formed on one end of the extending portion 2e, and a through hole 3h. The formed plate-like portion 3t and a pin-like portion 3p extending in a direction parallel to the opposed surface 3fh and the pressing surface 2fp when the opposed surface 3fh is opposed to the surface 2fv of the extending portion 2e, A lock portion 3 as a second member configured to be incorporated in a circuit breaker 9 covered with the handle fixing portion 2 by an operation in a direction perpendicular to the surface of the track Ob8. The cap portion 2c of the handle fixing portion 2 includes The circuit breaker 9 is provided with a communication hole 2ch that communicates with a through hole 8h that passes through the handle 8 in a direction perpendicular to the surface of the operation track Ob8 formed on the handle 8 when the handle 8 is covered. Lock part 3 When assembled, the pin-like portion 3p is fitted into the through hole 8h via the communication hole 2ch, and the through hole 3h communicates with the insertion hole 2hl. The insertion hole 2hl) is positioned inside the operation track Ob8 of the handle 8, and the padlock 7 can be placed in the position closest to the operation range of the handle 8 on the operation surface 9fo. As a result, even if a plurality of switches are arranged close to each other, the padlock 7 does not interfere with adjacent switches. Furthermore, even when a panel is used, the padlock 7 does not protrude from the panel cut, and the panel can be opened and closed while being locked.

  In particular, the insertion hole 2hl of the extending portion 2e is opened so as to be related to the central portion of the handle 8 in a direction perpendicular to the surface of the operation track Ob8 when the cap portion 2c is put on the handle 8. For example, since the padlock 7 is located at the center in the width direction of the switch, it is possible to minimize interference with devices adjacent to the left and right.

  Further, the insertion hole 2hl of the extending part 2e and the through hole 3h of the plate-like part 3t are formed on the surface of the operation track Ob8 of the handle 8 when the lock part 3 is incorporated in the circuit breaker 9 covered with the handle fixing part 2. If the handle 8 is positioned so as to be within a range of ± 5 mm from the surface perpendicular to the operation surface 9fo including the rotation axis Xr of the handle 8 in a direction parallel to the operation surface 9fo, the handle 8 can be turned on or off. On the other hand, even when the handle lock device 1 is incorporated, the above-described interference with adjacent devices and interference with the panel can be prevented.

  Further, if the extending portion 2e is formed so as to be parallel to the angle of the cap portion 2h aligned with the handle 8, the mold can be easily configured, and the productivity is improved.

  Further, the lock portion 2 is provided with a second pin-like portion (second second portion) formed so as to fit into a recess 8c that is recessed in a direction perpendicular to the surface of the operation track Ob8 formed at a position different from the through hole 8h of the handle 8. If the pin 3p2) is provided, it is possible to prevent the handle fixing portion 2 from being incorporated in a state where it is covered with the handle 8 halfway, and the locking reliability can be improved.

  Further, if the cap portion 2c is formed so that the tip end portion of the handle 8 is opened when it is put on the handle 8, the cap portion 2c does not have to protrude from the height of the handle 8. Therefore, for example, with respect to a switch that is arranged in the immediate vicinity of the opening / closing mechanism portion of the panel and the inclination of the operation surface 9fo with respect to the perpendicular increases because the radius of curvature of the arc-shaped locus centering on the opening / closing mechanism portion decreases. In addition, the panel can be opened and closed while being locked.

1: Handle lock device,
2: handle fixing portion (first member), 2c: cap portion, 2ch: communication hole, 2e: extending portion, 2fp: pressing surface, 2fv: (surface perpendicular to the operation track Ob8 surface when covered), 2hl: insertion hole, 2p: fitting protrusion, 2w: frame-shaped part,
3: lock part (second member), 3fh: facing surface, 3h: through hole, 3p: pin-like part, 3p2: second pin (second pin-like part), 3t: plate-like part,
7: padlock, 7k: latch, 7m: body,
9: circuit breaker, 9fo: operation surface, 91: main body, 92: power supply side terminal, 93: load side terminal,
Ob8: operation trajectory, Xr: rotation axis, α: angle (from the rotation center when the handle is tilted).

Claims (6)

A handle lock device for fixing a handle for ON / OFF operation protruding from an opening provided on an operation surface of a switch,
A frame-shaped part that surrounds the opening and has a pressing surface that presses down the operation surface, and an opening at one end of the frame-shaped part on the pressing surface side, according to the angle of the handle that is turned on or off. And a cap portion formed in a concave shape, extending from the other end portion of the frame-shaped portion toward the one end portion so as to be separated from the pressing surface and extending parallel to the operation track surface of the handle A first member configured to cover the handle by the movement in a direction parallel to the operation track surface,
A plate-like portion having a facing surface facing a surface perpendicular to the operation track surface formed on the one end side of the extending portion and having a through hole formed thereon, and the facing surface as a surface of the extending portion The switch having a pin-like portion extending in a direction parallel to the facing surface and the pressing surface when being faced to each other and covered with the first member by an operation in a direction perpendicular to the operation track surface A second member configured to be incorporated into,
The cap portion of the first member is provided with a communication hole that communicates with a through-hole that extends in a direction perpendicular to the operation track surface formed on the handle when the cap is put on the handle.
When the second member is incorporated into the switch that covers the first member, the pin-like portion is fitted into the through hole through the communication hole, and the through hole communicates with the insertion hole. A handle lock device for a switch that is configured as described above.   The insertion hole of the extension portion is open so as to be related to a central portion of the handle in a direction perpendicular to the operation track surface when the cap portion is put on the handle. The switch locking device for switches according to claim 1.   The insertion hole of the extension part and the through hole of the plate-like part are formed on the operation track surface and the operation of the handle when the second member is incorporated in the switch covered with the first member. 3. The switch for a switch according to claim 1, wherein the switch is disposed within a range of ± 5 mm from a plane perpendicular to the operation surface including the rotation axis of the handle in a direction parallel to the plane. Handle lock device.   4. The switch lock device for a switch according to claim 1, wherein the extension portion is formed to be parallel to an angle of the cap portion matched with the handle. 5.   The second member has a second pin-shaped portion formed so as to be fitted into a concave portion that is recessed in a direction perpendicular to the operation track surface formed at a position different from the through hole of the handle. The handle lock device for a switch according to any one of claims 1 to 4.   The switch handle lock device for a switch according to any one of claims 1 to 5, wherein the cap portion is formed so that a tip end portion of the handle is opened when the cap portion is put on the handle. .

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