JPS60257014A - Device for manufally closing and tripping breaker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a mechanical closing and tripping mechanism for a closing spring storage type breaker, and particularly to a manual closing and tripping mechanism (1). It relates to a mechanism that is made into a small unit as a part input and tripping operation section.

[Background of the invention]

Conventional manual closing and tripping operation sections each have an independent mechanical section, and the mechanism sections are supported on the frame of the circuit breaker, and both the manual closing operation section and the manual release operation section are connected to the closing lever or , because it was connected to the trip lever, there were many parts, and each part was assembled and adjusted in sequence.
The assembly process required a large number of steps, and the mechanical section occupied a large volume, which was an obstacle to downsizing the circuit breaker.

[Purpose of the invention]

The purpose of the present invention is to stabilize the quality by using press-processed parts for the manual input and tripping operation parts, reduce the number of parts by unitizing the parts manufacturing stage, and reduce the number of parts and reduce the need for adjustment work. The purpose of this invention is to provide a device for manually loading and unloading the device.

[Summary of the invention]

The key point of the present invention is that the support metal fitting that supports the manual loading/unloading operation part is L-shaped, and two (2) tiered bottles are fixed to one side of the metal fitting at different positions facing each other. The pin functions as both a fulcrum and a stopper, the closing operation lever and the tripping operation lever are rotated using the pin as a fulcrum, and a flat washer is inserted between these levers and the support fitting.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to FIGS. 1 to 5.

Figure 1 shows a breaker with a closing spring energy storage operating device.
It has a mechanism part that can perform a tripping operation, and when a closing operation is performed, the closing roller 2 and loading prop 3 are disengaged, the breaker is closed by the action of the closing spring 23, and during a tripping operation, the tripping roller 5 and the closing prop 3 are disengaged. Disengage the removal prop 4 and release the trip spring 24.
The breaker opens due to the action of

As an example of such a mechanism part, the present invention includes an L-shaped support fitting 15, a closing operation lever 11, a tripping operation lever 14, a return spring 12, 17, and a stepped pin 1, as shown in FIG.
From 3.16, a manual input and trip operation section is configured. Detailed structure is shown in FIG. 3 (3) As shown in FIG. 3, in the manual input operation section, a return spring 12 and input operation lever 11 are inserted into a stepped pin 13, and screwed to a support fitting 15 via a spring washer 19.

For the manual release operation section, insert the return spring 17 and the release operation lever 14 into another stepped pin 16 so as to be located below the stepped pin 13, and screw them so as to face the stepped pin 13. . For both the stepped pins 13 and 16, lengthen the screw extensions, insert the trip operation lever 14 through the flat washer 21 for the stepped pin 13, and then attach the flat washer 22 to the tip of the stepped pin 13. It is caulked through.

Similarly, the stepped pin 16 is also caulked with the flat washer 22 after the closing operation lever 11 is inserted through the flat washer 21 . The flat washer 20.21°22 is the closing operation lever 11. The trip operation lever 14 is inserted so as to slide smoothly.

With this structure, the manual closing and tripping operation parts are integrated into a unit, and the breaker front plate 1 is supported by the support fitting 15.
It is now possible to install.

The closing operation lever 11 and the tripping operation lever 14 are as follows.

(4) Since it is usually pressed with a finger, the operation part is a flat plate, and the operation stroke is as shown in Figures 4 and 5.
Then, the first staged bottle 13 is used as a fulcrum to rotate, and the staged pin 16
The threaded part serves as a stopper.

By setting the relief hole size of the closing operation lever 11 to an arbitrary size for the distortion of the screw portion, the dimensional difference between the screw diameter and the hole size becomes the stroke. The same applies to the trip operation lever 14, where the two-dot chain line indicates the position of each lever during manual operation, and when the finger is released, the lever returns to its original position by the return spring 12.17.

The engagement portion of the manual input/release operation unit configured in this manner with the input lever 8 and the tripping lever 9 is such that the input operation lever 11 directly engages with the input lever 8 and connects the input prop 3 and input roller 2. Since the trip operation lever 14 has the trip lever 9 at a position away from the manual operation section, the rod 18 is inserted into the lower part of the trip operation lever 14 and the tip is caulked. At the same time, the rod 18 is positioned by the guide 10 on the operating device side, and when the tripping operation lever 14 is operated (5), the rod 18 engages with the tripping lever 9, and the tripping prop 4 and The tripping roller 5 is disengaged and a tripping operation is performed.

FIG. 6 shows another embodiment of the invention.

Note that 6 and 7 in the figure are shafts.

〔Effect of the invention〕

According to the present invention, the number of parts is reduced, the structure is simple, stable operation is obtained, and the reliability of operation is improved.

The use of press-formed parts has increased, the reliability of parts has increased, and the number of assembly steps has been reduced because the partial assembly of the manual operation part has been completed at the parts manufacturing stage, eliminating the need for adjustment work.

[Brief explanation of the drawing]

Fig. 1 is a side view of the overall structure of the shield device of the present invention, Fig. 2 is a perspective view of the inventive part, Fig. 3 is a vertical sectional view of the inventive part seen from the back side, Figs. The figure is an explanatory diagram showing the operating state, and Fig. 6 is a perspective view of another embodiment (6) 13.1.6...Stepped bottle, 14...Tripping operation lever, 15...Supporting metal fittings . Agent Patent Attorney Akio Takahashi (7) 1st Juyu 20 73- 3rd Counsel

Claims (1)

[Scope of Claims] 1. In the closing and tripping operation section of a closing spring storage type breaker having a mechanical closing and tripping mechanism for opening and closing an electric circuit, two A loading operation lever, which has stepped pins facing each other and fixed at different positions, and engages with a loading lever connected to the loading mechanism; and a tripping lever, which engages with a tripping lever connected to the tripping mechanism. manual closing and tripping operations of a breaker, characterized in that an operating lever is rotatably attached to each shaft of the stepped pin, and the shaft of the other stepped pin is configured as a stopper. Device.