JP7422609B2 - Plug-in breaker fixed structure - Google Patents

Description

The present invention relates to a plug-in breaker fixing structure for fixing a breaker equipped with a plug-in terminal that can be connected by an insertion operation to an installation target.

Breakers whose power supply terminals are plug-in terminals are widely used as breakers for home distribution boards because the power supply terminals can be easily connected. An example of such a plug-in breaker fixing structure is disclosed in Patent Document 1.
In Patent Document 1, a retaining metal fitting having an upwardly protruding protrusion that locks onto the breaker and prevents the breaker from coming off is arranged on a mounting plate to which the breaker is attached, thereby locking the attached breaker. There is.

Japanese Patent Application Publication No. 11-69529

The plug-in breaker fixing structure described in Patent Document 1 has elasticity in the retaining metal fitting, so that when the breaker is placed on the mounting plate and connected to the conductor bar, the breaker is placed on the mounting plate. This forced the protrusion downward, and when insertion was complete, it protruded upward to lock the breaker. Therefore, it was possible to fix it simply by inserting it.
However, the operation for removing the breaker required two steps because it was necessary to insert a screwdriver or the like into a through hole provided in the mounting plate, release the latch of the protrusion, and then pull out the breaker separately. In particular, removal was troublesome because the protrusion was pulled out while maintaining the unlocked state.

SUMMARY OF THE INVENTION In view of these problems, it is an object of the present invention to provide a plug-in breaker fixing structure that can perform both insertion and removal operations in one step.

In order to solve the above problem, the invention of claim 1 provides a breaker in which the power supply side terminal provided on the back is configured as a plug-in terminal, and the breaker is connected to the conductor bar by a sliding operation. A plug-in breaker fixing structure that is fixed to the mounting plate to which it is attached upon completion of connection to the breaker, and includes a locking means for locking the breaker and a locking means for locking the locked state of the locking means. A breaker holding member is attached to the mounting plate, and when the breaker is slid backward on the mounting plate and the connection to the conductor bar is completed, it is latched to the locking means and the locking means locks the breaker. The breaker is fixed to the mounting plate, and the breaker has an operating hole for inserting an operating means for releasing the lock by the locking means, and when the operating means inserted into the operating hole is tilted forward, the operating means The breaker is equipped with a moving operation part that engages with the breaker to move the breaker forward, and when the operation means is inserted into the operation hole and the lock is released and the operation means is tilted forward, the conductor is removed from the plug-in terminal. The feature is that the bar can be removed.
According to this configuration, the breaker is latched and locked to the mounting plate by the breaker insertion operation that connects the power supply side terminal consisting of a plug-in terminal to the conductor bar, so the breaker can be installed in one step. . Furthermore, if the operating means is tilted forward when the operating means is used to release the lock, the breaker will slide forward, so the unlocking operation and the removal operation can be performed in one step, and the breaker can be attached and detached with a simple operation.

The invention according to claim 2 is the structure according to claim 1, in which the locking means is a protruding piece that engages with a step formed on the lower surface of the breaker, and the protruding piece forms a part of the breaker holding member. The projection piece is formed on an elastic piece that has elasticity in the vertical direction, and the elastic piece is elastically deformed downward by an operating means inserted into the operation hole, so that the locking of the protrusion piece to the stepped part is released. Features.
According to this configuration, the protruding piece constituting the locking means is formed on the elastic piece that has elasticity in the vertical direction, so when the operating means is pressed down, the protruding piece moves downward due to the elasticity of the elastic piece. The locked state is released. Therefore, the lock can be released by a simple operation of pressing down on the operating means.

In the invention according to claim 3, in the structure according to claim 2, the elastic piece is disposed on the lower surface of the mounting plate and has a length that projects forward of the breaker along the breaker, and the tip thereof is arranged on the lower surface of the mounting plate. The protruding tip is arranged to protrude from the holder, and is characterized in that the protruding tip serves as a release operation part that releases the lock of the breaker by the protrusion piece when a push-down operation is received.
According to this configuration, the locked state of the breaker is released by pressing down the portion of the elastic piece that protrudes from the mounting plate, so the lock can be released without using the operating means, which is convenient.

According to the present invention, the breaker is latched and locked to the mounting plate by the breaker insertion operation that connects the power supply side terminal consisting of a plug-in terminal to the conductor bar, so the breaker can be installed in one step. . Further, when the operating means is used to release the lock, if the operating means is tilted forward, the breaker will slide forward, so the unlocking operation and the extraction operation can be performed in one step, and the breaker can be attached and detached with a simple operation.

FIG. 1 is a perspective explanatory view showing an example of a plug-in breaker fixing structure according to the present invention, showing a state in which a plurality of breakers are fixed to a mounting plate. The breaker holding member is shown, (a) is a perspective view seen from above, and (b) is a perspective view seen from below in a state in which a part is elastically deformed. It is a perspective view of a single mounting plate. FIG. 3 is a perspective view of a mounting plate to which a breaker mounting member is attached. It is a side explanatory view showing how the breaker is attached to the mounting plate, (a) is a cross-sectional view showing the state before connection when it is placed on the mounting plate, and (b) is a cross-sectional view showing the state in which it is slid and connected to the conductor bar and is attached. The completed state is shown in cross section. It is a side explanatory view showing the removal operation of the breaker, (a) is a cross-sectional view showing a state in which a screwdriver is inserted and the lock part is unlocked, and (b) is a state in which the breaker is slid by operating the driver. is shown in cross section.

Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an example of a plug-in breaker fixing structure according to the present invention, showing a state in which a plurality of breakers (plug-in breakers) provided with plug-in terminals are fixed to a mounting plate. 1 is a breaker, 2 is a mounting plate to which the breaker 1 is attached, 3 is a breaker holding member for fixing the breaker 1 to the mounting plate 2, and 4 is a conductor bar to which the breaker 1 is connected.

The breaker 1 has a power side terminal 11 made up of a plug-in terminal on the back, a load side terminal (not shown) made of a quick connection terminal on the front, and an operation handle for turning on/off the breaker 1 on the top. 13, and a fixing locking piece 14 (shown in FIG. 5) for attaching to the mounting plate 2 at the bottom.
Further, an operation hole 15 for releasing the lock by the breaker holding member 3 is formed at the lower part of the front side, and the front end of the operation hole 15 is used for inserting a driver 6 (shown in FIG. 6) as an operation means. By bringing them into contact, a moving operation section 16 that slides the breaker 1 forward is configured. Note that the operating means does not need to be a driver, but may be a rod-shaped member.

FIG. 2 shows the breaker holding member 3, in which (a) is a perspective view seen from above, and (b) is a perspective view seen from below. However, (b) shows the breaker holding member 3 shown in the front in FIG. 1, and shows a state in which a part (second holding member 3b) is elastically deformed.
The breaker holding member 3 is made of synthetic resin, has a length exceeding the depth of the breaker 1, and is disposed over the entire lower surface of the breaker 1 to be attached.

One end located at the rear of the breaker 1 has a grip portion 31 bent into a U-shape, and is configured to grip a predetermined portion of the mounting plate 2 . On the other hand, the other end disposed in front of the breaker 1 is configured with a release operation section 32 that can release the locked state of the breaker 1.
The gripping portion 31 is formed by bending upward into a U-shape, and is formed so as to grip the mounting plate 2 so as to arrange the breaker holding member 3 along the lower surface of the mounting plate 2.

Further, the breaker holding member 3 includes a first holding member 3a provided with a locking portion 33 for locking the breaker 1, and a projection piece 34 as a locking means for locking the breaker 1 locked in the locking portion 33. The second holding member 3b is integrated with the gripping portion 31 and disposed in parallel to each other in front.
The first holding member 3a is arranged separately on the left and right sides of the second holding member 3b, and is integrated with a locking portion 33 formed at the tip. The locking portion 33 is formed in a gate shape, and is formed so that the locking piece 14 for fixing the breaker 1, which is formed to protrude rearward, is inserted into the locking portion 33.

On the other hand, the second holding member 3b is an elastic piece, has a length exceeding the breaker 1, and is formed to be elastically deformed in the vertical direction. The protrusion piece 34 is formed on the second holding member 3b and arranged on the front side of the locking part 33. By elastically deforming the second holding member 3b, the fixation (lock) of the breaker 1 can be released. Further, the distal end of this second holding member 3b is a release operation section 32.

3 and 4 are perspective views of the mounting plate 2. FIG. 3 shows the mounting plate alone, and FIG. 4 shows the state in which the breaker holding member 3 is attached. The mounting plate 2 is formed by processing a metal plate, and has a flat breaker mounting surface 2a and a hanging piece 2b bent downward at the front position of the mounted breaker 1.
The breaker mounting surface 2a has a mounting hole 21 for mounting the breaker holding member 3, a holding hole 22 for holding the breaker 1, and an insertion hole 23 for removing and operating the mounted breaker 1. Further, an operation window 24 through which a release operation section 32 projects is opened in the hanging piece 2b.

The holding holes 22 are formed in two places in the front and back direction of the breaker 1 to be attached.The first holding hole 22a formed at the rear allows the locking part 33 to protrude upward, and the second holding hole 22b allows the protruding piece 34 to protrude upward. Make it stand out. On the other hand, the insertion hole 23 is formed to match the operation hole 15 of the breaker 1, which is the front side of the second holding hole 22b, and the operation window 24 is formed in front of the insertion hole 23.

Further, a protrusion 25 is formed near the attachment hole 21 which is hidden when the grip portion 31 is attached. The protrusion 25 is a protrusion that holds the grip part 31, is formed in a straight line in a direction perpendicular to the mounting direction of the grip part 31, and positions and holds the breaker holding member 3. A locking groove 31a is formed inside the corresponding gripping part 31, and the protrusion 25 is fitted into the locking groove 31a to maintain the attached state.

FIG. 5 is a side explanatory view showing how the breaker 1 is attached to the mounting plate 2. (a) shows a cross section of the breaker 1 placed on the mounting plate 2 before connection, and (b) shows the conductor by sliding it. The cross section shows the state in which it is connected to the bar 4 and the installation is completed. The breaker 1 is shown in a longitudinal section taken near the center.
As shown in FIG. 5(a), a recess 17 for accommodating the locking part 33 of the breaker holding member 3 is formed in the lower part of the breaker 1, and a fixing lock is provided at the front end of the recess 17. A piece 14 is provided to protrude rearward. The locking portion 33 of the breaker holding member 3 accommodates and holds this fixing locking piece 14.

To install the breaker 1, first place the breaker 1 at a predetermined position on the mounting plate 2 in order to hold the fixing locking piece 14, and push it down so that it comes into close contact with the mounting plate 2. do. Then, the protruding piece 34 is pressed, the second holding member 3b is elastically deformed, and the protruding piece 34 sinks below the mounting plate 2. In this way, the breaker 1 is placed in close contact with the mounting plate 2.
In this state, when the conductor bar 4 is then slid backward, the conductor bar 4 is inserted into the power supply side terminal 11 consisting of a plug-in terminal. Then, the fixing locking piece 14 is inserted into the locking portion 33 formed in a gate shape.

Furthermore, when this insertion is completed, the operation hole 15 of the breaker 1 is located on the protrusion piece 34, the second holding member 3b is elastically restored, the protrusion piece 34 protrudes upward, and the breaker 1 is locked and moved backward. movement is prevented.
Specifically, the bottom end of the operation hole 15 has a step 18 on which the protrusion 34 engages, and when the insertion of the breaker 1 is completed, the protrusion 34 engages with the step 18 to lock the breaker 1. . In this way, the breaker 1 is prevented from coming off. FIG. 5(b) shows the locked state of this connection completion.

FIG. 6 is a side explanatory view showing the removal operation of the breaker 1, in which (a) shows a cross section of the state in which the driver 6 is inserted and the lock part is unlocked, and (b) shows the state in which the driver 6 is operated. The cross section shows the state in which the breaker 1 is slid.
As shown in FIG. 6(a), when the driver 6 is inserted into the operation hole 15 and the second holding member 3b of the breaker holding member 3 is pressed down through the insertion hole 23, the second holding member 3b is moved downward. Due to the elastic deformation, the projection piece 34 is disengaged from the breaker 1 and the locked state is released.

Thereafter, as shown in FIG. 6(b), when the driver 6 is tilted forward as indicated by arrow A in the unlocked state, the driver 6 comes into contact with the movement operation section 16. Then, when the driver 6 is further tilted, the breaker 1 slides forward. As a result, the locking of the fixing locking piece 14 to the locking portion 33 is released, and the holding action of the breaker holding member 3 on the breaker 1 is eliminated.
After that, by lifting the breaker 1, the connection with the conductor bar 4 that remains slightly is released, and the breaker 1 can be removed.

In this way, by inserting the breaker 1 to connect the power supply side terminal 11 consisting of a plug-in terminal to the conductor bar 4, the breaker 1 is latched and locked to the mounting plate 2, so the breaker 1 can be inserted in one step. 1 can be installed.
When the driver 6, which is the operation means, is used to release the lock, if the driver 6 is tilted forward, the breaker 1 will slide forward, making it possible to perform the unlocking operation and the removal operation in one step, making it simple. It can be attached and detached with simple operations.
In particular, since the protruding piece 34 is formed on the second holding member 3b that has elasticity in the vertical direction, when pressed down with the driver 6, the protruding piece 34 moves downward due to the elasticity of the second holding member 3b. The locked state is released. Therefore, the lock can be released by a simple operation of pressing the driver 6.
Further, by pressing down the release operation part 32 protruding from the mounting plate 2 of the second holding member 3b, the locked state of the breaker 1 is released, so the lock can be released without using the driver 6, which is convenient. Good sex. Moreover, the breaker holding members 3 need only be prepared as many as the number of breakers 1 to be assembled, and can be configured with a minimum number of members.

1... Breaker, 2... Mounting plate, 3... Breaker holding member, 3a... First holding member, 3b... Second holding member (elastic piece), 4... Conductor bar, 6... Driver (operation). Means), 11...Power side terminal (plug-in terminal), 14...Fixing locking piece, 15...Operation hole, 16...Movement operation part, 18...Step part, 32...Release operation part, 33...Locking portion (locking means), 34... Projection piece (locking means).

Claims (3)

The breaker, whose power supply side terminal provided on the back is a plug-in terminal, connects the plug-in terminal to the conductor bar by sliding operation, and when the connection to the conductor bar is completed, the breaker is connected to the mounting plate to be attached. A plug-in breaker fixed structure that is fixed to
A breaker holding member including a locking means for locking the breaker and a locking means for locking the locked state of the locking means is attached to the mounting plate,
When the breaker is slid backward on the mounting plate and the connection to the conductor bar is completed, it is locked in the locking means, and the locking means locks the breaker so that the breaker is attached to the mounting plate. The breaker is fixed,
Furthermore, the breaker has an operation hole for inserting an operation means for releasing the lock by the locking means, and when the operation means inserted into the operation hole is tilted forward, the breaker engages with the operation means and the operation means is engaged with the operation means. Equipped with a movement operation section that moves the breaker forward.
The plug-in breaker fixing structure is characterized in that when the operating means is inserted into the operating hole and unlocked and the operating means is tilted forward, the conductor bar is pulled out from the plug-in terminal. The locking means is a protruding piece that locks onto a step formed at the bottom of the breaker,
The protruding piece is formed as an elastic piece that forms a part of the breaker holding member and has elasticity in the vertical direction,
The plug according to claim 1, wherein the elastic piece is elastically deformed downward by the operation means inserted into the operation hole, thereby releasing the locking of the projection piece to the step part. In-breaker fixed structure. The elastic piece is disposed on the lower surface of the mounting plate, has a length that projects along the breaker in front of the breaker, and has a tip thereof protruding from the mounting plate,
3. The plug-in breaker fixing structure according to claim 2, wherein the protruding tip serves as a release operation part that releases the lock of the breaker by the protruding piece when a push-down operation is received.

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