JP2001110294A - Breaker with handle lock mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a breaker offering simple construction ensuring easy handle lock and eliminating the possibility of losing parts. SOLUTION: An operation switch 4 is provided in a case 2 for a breaker 1. The operation of a handle 3 is made impossible by operating the operation switch 4 to engage part of the operation switch 4 with the end 8 of the handle 3 in the case 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a breaker with a handle lock mechanism which is mounted on a distribution board for a house and used for an emergency power supply circuit of a branch circuit.

[0002]

2. Description of the Related Art In order to lock a handle 42 with an emergency power supply circuit or the like, a breaker 41 in the prior art is shown in FIGS.
As shown in FIG. 14, a handle lock 43 is fitted to the handle 42 to prevent the handle 42 from moving.

[0003] Alternatively, as in Japanese Utility Model Laid-Open No. 6-60045, a lock lever provided on a handle portion of a breaker is turned to restrict the movement of the handle.

[0004]

However, the breaker 41 shown in FIGS. 13 and 14 of the prior art uses a detachable handle lock 43 to lock the handle 42, so that the breaker 41 is lost. There was a fear.

Further, when a lock mechanism is incorporated in the handle of the breaker as in Japanese Utility Model Application Laid-Open No. 6-60045, there is a possibility that only the lock lever moves when the handle is operated, which may hinder the operation of the handle body. Was. And since the handle itself has a complicated structure, there is a disadvantage that the strength of the handle is reduced.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a breaker in which the handle can be easily locked with a simple structure and there is no risk of losing parts.
An operation switch is provided on the case of the breaker, the operation switch is operated, and a part of the operation switch is engaged with an end of the handle in the case, whereby the handle cannot be operated.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A breaker with a handle lock function according to the present invention is characterized in that an operation switch provided in the vicinity of a handle is operated and a part of the operation switch is engaged with an end of the handle in a case of the breaker. This makes it impossible to operate the steering wheel.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a breaker with a handle lock mechanism according to the present invention will be described with reference to FIGS.

As shown in FIGS. 1 and 2, a breaker 1 with a handle lock mechanism according to the present invention is used for an emergency power supply circuit such as an automatic fire alarm in a distribution board for a house. The mechanical part of the breaker 1 with a handle lock mechanism is housed in a case 2, and an ON / OFF operation is performed by a handle 3.

An operation switch 4 is provided near the handle 3 to lock the handle 3. The operation switch 4 is formed in a substantially L-shape, and includes a switch section 5, a display section 6, and an engagement section 7. The switch section 5 is extended outside the case 2, the engagement section 7 is accommodated in the case 2, and the display section 6 is moved or hidden at a position visible from the outside of the case 2 in conjunction with the operation of the operation switch 4. The operating switch 4 is slid to lock the handle 3 by engaging the engaging portion 7 of the operating switch 4 with the end 8 of the handle 3 in the case 2, and at the same time, above the ON character displayed on the handle 3. Is covered by the display unit 6 of the operation switch 4. If characters indicating operation prohibition are displayed on the display unit 6, the state of the breaker 1 with the handle lock mechanism can be easily checked.

The position of the operation switch is not particularly limited either. The operation switch is provided above the terminal portion 10 of the breaker 9 as shown in FIG. 3 or the breaker 1 as shown in FIG.
It may be provided on one side surface 12.

The shape of the operation switch is not particularly limited either. For example, as shown in FIG. 5, the operation switch may be dropped from the surface of the case 13, or as shown in FIG.
The end of the switch section 14 may be formed in an upright shape so that a finger can be easily hooked on the switch section 14, or a circular switch section 15 as shown in FIG.

The breaker with a handle lock mechanism according to the present invention is not limited to a slide-type operation switch as shown in FIGS.
As shown in the figure, a push button type operation switch may be used.

A push button switch 18 is provided near the handle 17 of the breaker 16. Push button switch 18
When the button is pressed, the engaging piece 20 engages with the end 21 of the handle 17 in the case 19 of the breaker 16 to prevent the handle 17 from being operated.

As shown in FIGS. 10 to 11, a rotary operation switch may be used. A knob 24 is provided near the handle 23 of the breaker 22. By rotating the knob 24, the engaging portion 25 connected to the knob 24 is engaged with the end 27 of the handle 23 in the case 26 of the breaker 22 so that the handle 23 cannot be operated.

As shown in FIG. 12, an operation switch having a hinge structure may be used. An operation switch 31 that is rotatable by a hinge 30 is provided at an end of a case 29 of the breaker 28. In conjunction with the turning operation of the operation switch 31, the engaging portion engages with the end of the handle 32 in the case 29 so that the handle 32 cannot be operated.

[0017]

According to the breaker with a handle lock mechanism of the present invention, a handle lock operation switch is provided on the breaker lid, the handle lock operation switch is moved, and a part of the handle lock operation switch is moved to the end of the handle in the case. Since the handle becomes inoperable by engaging with the portion, there is no component to be detached for locking the handle, so that there is no danger of losing those components. Since the handle itself is not worked, the handle operation can be easily performed without being locked, and there is no possibility that the strength of the handle is reduced.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a structure of a breaker with a handle lock mechanism according to the present invention.

FIG. 2 is an explanatory view showing a state in which a handle is locked in FIG. 1;

FIG. 3 is an explanatory view showing a second embodiment in FIG. 1;

FIG. 4 is an explanatory diagram showing a third embodiment in FIG. 1;

FIG. 5 is an explanatory diagram showing a fourth embodiment in FIG. 1;

FIG. 6 is an explanatory diagram showing a fifth embodiment in FIG.

FIG. 7 is an explanatory view showing a sixth embodiment in FIG.

FIG. 8 is an explanatory view showing a seventh embodiment of the breaker with a handle lock mechanism according to the present invention.

FIG. 9 is an explanatory view showing a state in which the handle is locked in FIG. 8;

FIG. 10 is an explanatory view showing an eighth embodiment of a breaker with a handle lock mechanism according to the present invention.

FIG. 11 is an explanatory view showing a state where the handle is locked in FIG. 10;

FIG. 12 is an explanatory view showing a ninth embodiment of a breaker with a handle lock mechanism according to the present invention.

FIG. 13 is an explanatory view showing a handle lock method in the prior art.

FIG. 14 is an explanatory view showing a state where the handle is locked in FIG. 13;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Breaker with handle lock mechanism 2 Case 3 Handle 4 Operation switch 5 Switch part 6 Display part 7 Engagement part 8 End part 9 Breaker 10 Terminal part 11 Breaker 12 Side 13 Case 14 Switch part 15 Switch part 16 Breaker 17 Handle 18 Push button Switch 19 Case 20 Engagement piece 21 End 22 Breaker 23 Handle 24 Knob 25 Engagement part 26 Case 27 End 28 Breaker 29 Case 30 Hinge 31 Operation switch 32 Handle

Claims (1)

[Claims] 1. A breaker which is used for an emergency power supply circuit in a branch circuit of a residential power distribution panel, wherein a mechanism is housed in a case and a handle for performing an on / off operation protrudes from the case. A breaker with a handle lock mechanism, wherein an operation switch is provided on a case, the operation switch is operated, and a part of the operation switch is engaged with an end of the handle in the case, whereby the handle becomes inoperable.