JP4564633B2 - Circuit breaker handle position fixing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is an apparatus for fixing an operation handle of a circuit breaker at an open position or a closed position.
[0002]
[Prior art]
Conventionally, a circuit breaker has a device as shown in FIG. 3 as a device for displaying prohibition of operation of a handle portion, and is called a handle cap. FIG. 3 is a perspective view of the handle cap. The handle cap 10 is provided with protrusions 103 on both inner sides of the frame 102 in a direction perpendicular to the rolling direction of the handle, and a support 104 is provided on the surface of the handle cap 10 that contacts the circuit breaker cover. The handle cap 10 is attached to the handle portion so that the frame portion 102 covers the handle portion from the extending direction of the handle.
[0003]
The protrusion 103 fits into the thin hole in the handle portion and has a structure that prevents the handle cap from falling off the handle.
[0004]
[Problems to be solved by the invention]
However, in the above-described conventional handle cap, even if the prohibition of operation is displayed, if the load is applied in the operation direction by mistakenly touching the handle portion, the frame portion 102 bends to cause the protrusion 103 to bend. And the fillet hole provided in the handle portion is easily disengaged, and the handle cap 10 is abutted along the handle portion while the support portion 104 is in contact with the surface of the cover, and falls off the handle, or There was a problem that the handle could not be fixed in the closed or open position because it was in a halfway disengaged state.
[0005]
The present invention has been made in consideration of the above circumstances, and even when a load is applied to the handle portion by mistake while having a simple structure such as a handle cap, the handle of the circuit breaker can be opened without disengagement. Alternatively, an object of the present invention is to provide a handle position fixing device that can be reliably fixed to a closed position.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a case that houses a circuit breaker mechanism, a cover that covers the case, and an opening hole in the cover, and that moves in the opening hole in conjunction with the circuit breaker mechanism. A handle position fixing device for fixing the handle portion of the circuit breaker constituted by a handle portion that opens and closes the circuit breaker by moving the handle to a open position or a closed position, the handle position fixing device, The handle frame includes a handle frame and a locking piece extending from the handle frame , and the handle frame is open at one of the surfaces parallel to the plane including the rolling locus of the handle. A fitting projection that is provided long according to the depth of the fillet hole formed in a direction orthogonal to the surface including the rolling locus provided in the fitting projection and is fitted to the fillet hole. , Rolling of the handle part And it means retaining consisting engaging projection provided on the opening side that prevents it escaping in a direction perpendicular to the plane including the traces, the locking piece and the end edge and the handle portion of the tip is the opening hole are formed by bending so as to fit between and, the handle position fixed in said handle position fixing apparatus alone by the locking piece and the butt portion fitted the is engaged with the edge and each said thinned hole Suppresses the movement of the device in the handle rolling direction, and when attached, covers the handle piece from the direction perpendicular to the plane including the rolling locus of the handle portion, and covers the locking piece and the fitting protrusion. The position of the handle portion with respect to is fixed.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0008]
FIG. 1 is a view showing a handle position fixing device for a circuit breaker according to an embodiment of the present invention. A case 7 accommodates the circuit breaker mechanism, and the cover 2 is formed by fitting and fixing the case 7 so as to cover the mechanism. The cover 2 is provided with a rectangular opening 3. Reference numeral 5 denotes a handle portion that projects from the opening hole of the cover 2 and is driven to open and close the circuit breaker contact by rolling along the opening hole in conjunction with the circuit breaker mechanism. The handle portion 5 is provided with a fillet hole 6 formed from both sides in a direction orthogonal to the rolling direction.
[0009]
The handle position fixing device 1 includes a handle frame 15 and a locking piece 11. The locking piece 11 abuts against the edge 4 of the opening hole 3 of the cover 2 and suppresses the movement of the handle position fixing device 1 in the handle rolling direction.
[0010]
The mounting frame portion 15 covers the surface of the handle portion 5, but opens one surface 14 parallel to the surface including the opening / closing rolling locus of the handle. The mounting frame portion 15 has a fitting protrusion 12 and an engaging protrusion 13. The mounting frame portion 15 is attached to the handle portion 5 from the direction of the opening surface 14.
[0011]
The fitting protrusion 12 is formed so as to protrude into the meat stealing hole 6 formed in a direction perpendicular to the surface including the rolling locus of the handle part 5 so as to be inserted from the stealing direction. Unlike the direction in which the conventional device is mounted on the handle, the length of the fitting protrusion 12 is set to the meat stealing hole 6 in order to mount the handle position fixing device 1 in the direction orthogonal to the rolling direction of the handle portion 5. Depending on the depth, it can be provided longer. Therefore, even when an excessive weight is applied in the rolling direction, the fitting of the handle portion 5 and the handle position fixing device 1 can be maintained.
[0012]
The engagement protrusion 13 prevents the handle position fixing device from coming off in a direction perpendicular to the surface including the rolling locus of the handle, and is formed so as to be elastically fitted to the handle portion 5 with moderation. The handle position fixing device 1 is held by the handle portion 5.
[0013]
The handle position fixing device 1 attached to the handle portion 5 fixes the handle of the circuit breaker to the open position or the closed position by the engaging piece 11 and the fitting protrusion 12.
[0014]
When a load is applied in the rolling direction of the handle, the locking piece 11 comes into contact with the edge 4 of the opening hole 3 and the fitting protrusion 12 is deeply engaged with the thin hole 6 of the handle. The handle position can be securely fixed to either the open or closed position. Further, the engagement protrusion 13 prevents the handle position fixing device 1 from coming off in a direction perpendicular to the plane including the rolling locus.
[0015]
Since the handle position fixing device 1 is mounted on the handle portion 5 from a direction orthogonal to the plane including the rolling locus, the length L12 of the fitting protrusion 12 can be provided long, Thus, the handle position fixing device 1 can be mounted so that the fitting does not come off even if an excessive load is applied without being easily detached by bending.
[0016]
In addition, this invention is not limited to the said Example, It can apply in the range which does not deviate from the range of the claim of this invention, These are not excluded from the scope of the present invention.
[0017]
【The invention's effect】
In the handle position fixing device of the present invention, one of the surfaces parallel to the surface including the rolling locus of the handle portion is opened, and is locked to the edge of the opening hole of the cover so that A locking piece for fixing the movement, a fitting protrusion protruding so as to be able to fit into a fillet hole formed in a direction perpendicular to the rolling direction provided in the handle portion, and the handle portion The handle of the circuit breaker is formed by attaching the handle position fixing device to the handle portion from the direction orthogonal to the rolling direction. Can be securely fixed to the open position or closed position, and even when excessive overload is applied, the handle position fixing device bends to disengage the fitting protrusion from the meat stealing hole. That means It is possible to provide a handle position fixing device.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention.
FIG. 2 is a view showing a state where an embodiment of the present invention is attached to a circuit breaker.
FIG. 3 is a perspective view showing a conventional example.
FIG. 4 is a view showing a state where a conventional example is attached to a circuit breaker.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Handle position fixing device 11 Locking piece 12 Insertion protrusion 13 Engagement protrusion 14 Opening surface 2 Cover 3 Opening hole 4 Edge 5 Handle part 6 Filled hole 7 Case 10 Conventional handle position fixing apparatus 102 Frame part 103 Protrusion Part 104 Locking piece

Claims (1)

Case that houses the circuit breaker mechanism, a cover that covers the case, and a handle that projects from the opening hole of the cover and opens and closes the circuit breaker by rolling in the opening hole in conjunction with the circuit breaker mechanism A handle position fixing device for fixing the handle portion of the circuit breaker constituted by the open circuit position or the closed circuit position,
The handle position fixing device includes a handle covered frame portion and a locking piece extending from the handle covered frame portion ,
The mounted frame portion has one of the planes parallel to the plane including the rolling trajectory of the handle portion and is formed with a fillet hole formed in a direction perpendicular to the plane including the rolling trajectory provided in the handle portion. A fitting protrusion that is provided long according to the depth and is provided so as to be able to be fitted into the fillet hole,
A retaining means comprising an engaging projection provided on the opening side that prevents the handle portion from being pulled out in a direction perpendicular to the surface including the rolling locus of the handle portion;
The locking piece is formed by bending so that the tip is fitted between the edge and the handle portion of the opening hole,
By the locking piece and the butt portion fitted the is engaged with the edge and each said thinned hole
Suppressing movement of the handle position fixing device in the handle rolling direction with the handle position fixing device alone ,
When attached, the handle piece is attached to the handle portion from a direction perpendicular to the plane including the rolling locus of the handle portion, and the locking piece and the fitting protrusion fix the position of the handle portion with respect to the cover. Circuit breaker handle position fixing device.

Images