JPS58201211A - Switching mechanism for low voltage switch - 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 This invention is constructed as a telescoping cedar lever consisting of two parts as a toggle mechanism, a first lever equipped with a 115 K opening/closing spring for zs and rotatably supported; A spring-type quick opening/closing mechanism of a low-voltage switch is concerned, having a lever of IK2 configured as a quick-acting part, and the coupling means between these levers being configured as a slotted linkage to a contact driver.

This lumberjack's spring-type rapid opening/closing machine Sakaki is equipped with a connection S with play, which consists of a drive SK provided with a drive S, and a toggle lever with which it engages. . This coupling part is constructed so that the driving part and the driven part are firmly coupled at least at the end of the opening range. In this case, the size of this end range must be determined in such a way that the required distance between the contacts is guaranteed in the case of a forced unipolar arrangement.In this known structure, only in the unipolar direction Apart from the fact that a strong bond is formed,
This opening/closing mechanism is relatively expensive.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an opening/closing mechanism of the type mentioned above, which maintains a strong connection between the driving part and the driven part in both the opening and closing directions with a simple structure. This object is easily achieved by constituting the means for connecting the levers with a soot and toe provided on the second lever and a pin provided on the first lever.

This opening/closing mechanism is further simplified when the pin is inserted into the line of the contact driver and the contact driver is a slider.In order to further simplify the line, the opening/closing spring is simultaneously connected to the operating handle. When the 0-rotation mechanism is turned to the maximum, the additional spring is omitted, and the Vcll! Only by the M spring K, both slots are horizontally 1 so that each of the two slots is 1 or 5, and when the rotary operation part is turned to the maximum position, the corresponding contact driver is closed at the position t. At extreme times, the contacts will close if there is no opening/closing spring, and at negative extremes, the contacts will open a predetermined distance even if there is no opening/closing spring. The safety of this opening/closing operation, which avoids the closing of the pole and the inability to open when the pole is closed, is practically achieved without any increase in output q#21. ◎In order to form the - of the case relatively loosely, that is, in order to prevent the opening/closing spring load from being added to the case, the bearing support part of both 1/bars is connected to the rotating operation part VC bearing. It is preferable to provide it on a supported support plate. Furthermore, it is advantageous to provide a stop and a bar for restricting the harvest through the support plate of the bottle Kq. ◎If an elastic body is provided between the bottle and the stop and bar, the load of the opening/closing spring can be reduced. The situation is relaxed. The slot of the slider is mainly formed of a slit-shaped 'KVc extending in an arc shape around the rotational operation part, and a rectangular enlarged part is provided on the side opposite to the rotational operation part of the hole. A particularly advantageous shape of the slot is obtained. In order to obtain good cooperation 111i1 operation with both input and output,
It is preferable that the slot of the second lever is formed by a groove-shaped hole extending in a circular arc shape with the rotary operation part as the center in the range of the rectangular enlarged part of the slot of the slider.

Next, one embodiment of this invention will be explained in detail based on the drawings.
K-Explanation〇The motor switch with 71-z shown in Figs. 1 to 3 is equipped with three low-voltage, large-capacity heathers 1 held at contacts 2. In installation, the contact 2 is mutually connected to the fixed contact 3 by a bolt 4, and each of the fixed contacts is movable W!
It is sandwiched between two rollers 5 each forming a point. The rollers 5 are provided on both sides of a slider 60 slidably guided in the case 7 and connect the inlet terminal 8 and the outlet terminal 9. In order to move this slider 6, a spring-type quick opening/closing mechanism provided in a case 7 shown in FIG. 4 is utilized. A tube 11 forming an operating shaft is freely supported by a bearing on the case 7 or a support plate lO held in the case 7, and a rotary operating section is formed on the tube. -12 is fixed. ing. A square 13 is held within the tube 11 via a clamp 14 for extending the operating shaft. A bottle 16 is inserted through the scI and g 15 of the lever 12, which are formed by grooves and grooves extending in an arc shape around the rotary operation part.

Since the pin 15 has a bulge 17, the pin 16, which has thick ends at both ends and a thin part 18 in the center, is inserted into the s' y) 16 at this bulge, and when it leaves the bulge, it cannot move in the axial direction. is prevented. The narrow portion 18 of the pin 16 is further inserted through the entrance, ) 19, of the slider 6. The shape of the slot 19 is 41IK 6th to 12th.
As shown in the figure. 19 mainly consists of a part extending in an arc shape with the pipe 11 of the rotary operation part as the center, and an enlarged part KW on the opposite side of this pipe and an enlarged part added ◎Using both corners of the enlarged part added. A slider 6 equipped with a movable contact 5 is driven. Here, the sliders 6 on both sides of the sliders 60 and 1 and 19 are set so that the sliders 6 are driven for the first time in the closing direction at the edge where the toggle mechanism reaches the dead center, and in the opening direction until the toggle mechanism reaches the dead center. It is designed to. In the closing direction, the slider 6 is accelerated by the opening/closing spring 21K regardless of manual operation. In the contact opening direction, the slider 60 is forcibly driven until it reaches the dead center, so that the f contact is welded and is torn off by a thousand seconds. A lever 22 with a built-in opening/closing spring 21, which is part of the toggle mechanism, is connected to a U-shaped holder X, 21 with a guide tube δ, which is rotatably supported by a bearing on the support plate 10 via a bottle, and to this holder. It consists of a pin 16 that is movably guided and a support for the opening/closing spring 21 that is rotatably supported by a bearing. Fourth
As shown in the figure, two receipts are provided for the two opening/closing springs 21 acting in parallel on the slide 6. A stopper 27 fixed to the case is used as the lever for limiting the rotation of the lever 120.
It can also be placed on top of. Further, on the support cell 10, a spring elastic body 1, for example a bar spring 32 bent at right angles, is fixed by, for example, a protrusion 33. Both ends 1134 and 35 of Keyaki Hane 32 are support #100 and arc-shaped stroke limiter 7
vinegar.

The end range V of the pin 36 protrudes from the VC and buffers the start of the movement of the C bottle 16 in the direction of the closing pole and rP74 pole.

In order to realize the 1# function of the spring-type rapid opening/closing mechanism based on this invention, in the closed position shown in Figure 5, the one-leg contact j is connected to the roller 5 and W!
If you touch it, turn the IHt counterclockwise and the lever 12
Strikes and leaves lba 27. Pi/16 is slot 15
Since the edge 281. At this time, the opening/closing spring 21 is
The lever 22 is compressed toward the shape
is shortened in length and moves around the bottle one time, as shown in Figure 6. ! 'I
Since the pin 16 moves further, the opening/closing spring 2
Due to the repulsion of 1, the slider 6 is suddenly driven 5 and becomes the tube 11! A rotating handle (not shown) is firmly connected!
When the pin 16 is held in the position shown in FIG. 7 with respect to the fixed contact 3 & 5, the pin 16 has already reached the arcuate portion of the slit 190.

(If you turn the operation part further while doing this, the bottle 16 comes into contact with the edge n, so the pin 16 and therefore the roller 5 come to the position shown in Figure t1g8. At this position, the opening/closing spring 21 breaks.

This is the forced-pole position when The final opening position is shown @9WiK. At this time, the opening/closing spring 21 moves the rotary nozzle to the open position via the bolt 16 and the slot 15 (9) without moving the slider 6 any further. The bottle 16 is also pickled at the same time, and the terminal edge 3 of ) 19 is
However, the restriction of movement relative to the pin 16 K can also be effected by holes in the support plate 10.

To close the pole, first, by rotating the tube 11 clockwise to compress the lever n in a telescopic manner, the dead center Ki shown in FIG. 10 is reached! ! ! The opening/closing spring 21 is compressed until the opening/closing spring 21 is compressed.

At this time, the *aO of the slot 15 drives the pin 16. As shown in Figure 11, the rotation/% handle was held stationary and the opening/closing spring 21 moved the pin 16 until it abutted against the edge of the slot 15. When the roller 5 is in contact with the fixed contact 3, the slider 6 has already moved.

The forced contact opening position in case the opening/closing spring 21 is damaged is shown in Fig. 12. In this case, the pin 16 is
) Moves in contact with 15 green (equity). Its movement is restricted by contacting the l/bar IHz striker bar 27. If the opening/closing spring 21 is complete, the slider 6. Lever 22 and bottle 16 are #! Move to the loading position shown in Figure 5. 1
2 and 8, the opening/closing I5 according to the present invention
It can be seen that even if the opening/closing spring 21 is damaged, it has appropriate rj safety even in case C. In other words, if the opening/closing spring is damaged, slow closing, which would normally cause damage to the opening winding itself, is prevented, and in an emergency, it is prevented from closing slowly, which would pose a danger to humans. Unipolar inability is prevented〇

[Brief explanation of drawings]

FIG. 1 is a plan view of a 7-z electric motor switch equipped with a spring-type quick-closing mechanism according to an embodiment of the present invention, and FIG. Cross-sectional view according to
Figure 3 is a cross-sectional view of the spring-type rapid opening/closing mechanism, and Figure 5 is a cross-sectional view of the spring-type rapid opening/closing mechanism. Fig. 6 is a schematic diagram of the slotted link mechanism when the bottle reaches the dead center of the toggle mechanism in the opening direction, Fig. 7 is a plan view of the slotted link mechanism with the rotating handle held in the position shown in Fig. 6. Pickpocketing when the toggle mechanism is reversed by the opening/closing spring. Fig. 8 is a schematic diagram of a ring mechanism with a ring mechanism, and Fig. 8 is a schematic diagram of a link mechanism with a ring mechanism.
w, Figure 9 G is a plan view of the spring-type quick opening/closing mechanism in the normal open position, Figure 1θ is the slot 4r link when the C pin is at the dead center of the toggle mechanism in the closing direction.
A schematic diagram of the barrel, Fig. 11, shows the slotted link S when the toggle mechanism is reversed by the opening/closing spring while the rotating handle is held in the position shown in Fig. 10. Schematic diagram of the structure, Figure 12 shows the state in which the pole cannot be closed when it opens and closes and is damaged.
5 to 12, the positions of the movable contacts relative to the fixed contacts are shown at the bottom of the drawings. In the figure, 3 is a fixed contact, 5 is a swingable point (L7-L)
, 6 is a contact driver (slide), and 10 is a support structure. 12 is #! 2 lever, 15 is pickpocket), 16 is pin, 19 is ay), 20 is enlarged part, 21 is GF
4 closing spring, 22 is the lever of set 1, spring elastic body (arcuous spring), 27.j strike, pa. 38

Claims (1)

[Scope of Claims]) The toggle mechanism is constructed as a telescopic lever consisting of two parts, the first lever being rotatably supported and equipped with a 2h-long Ran K11l closing spring, and the first lever being formed as a rotary operating part. Is there a coupling means between these levers? ! do. In the snap-type quick opening/closing mechanism of the low-voltage switch, which is formed as a slotted link mechanism, the coupling means connects a switch provided on the second lever and a pin provided on the first lever. The opening/closing mechanism of a low voltage switch consists of 41 types. 2. In the mechanism described in claim 1 JMiK,
An opening/closing mechanism for a low voltage switch in which the bottle is inserted into the contact portion 111I-7 and the contact drive element has a slide t''. 3) Claim J1 or 2 In the mechanism described in Section 1, both ends are overlapped by the opening/closing spring when the rotary operation part is turned to the maximum extent, and each end of the part overlaps to form a shape of 5 to 5. If there is no opening/closing spring, the contact will close or open at the corresponding position of the contact driver when the rotary operation part is turned to the maximum extent.
* is a low-voltage 11M open/close device that is characterized by a contact that closes for a predetermined distance even without an open/close spring.
. 4) In the mechanism according to any one of claims 1 to 3, the bearing support portions of both levers are provided on a support plate supported by bearings on the rotary operation portion. A low-pressure opening/closing mechanism characterized by: 5) Opening/closing of a low voltage switch in which the mechanism according to claim 4 is provided with a strike bar that limits the stroke of the bottle via a support plate. Mechanism・6) Scope of patent claims! 1. An opening/closing mechanism for a low-voltage switch, characterized in that in the mechanism described in item 5, a spring elastic body (arcuate spring) is provided between the bottle, the stop, and the stopper. 7) Claims In the mechanism described in any one of items 1 to 6m, the slider switch W. The hole mainly consists of a slotted hole extending in an arc shape around the rotary operation part, and this hole is opposite to the rotation operation part.
Switch side 1 of a low voltage switch characterized by having a rectangular enlarged part in 1g.
The λ lot of the lever or the entry of the slider, the ml of the rectangular enlarged part of the g! An opening/closing mechanism for a low-voltage switch whose characteristic is that it consists of a slit and a T-shaped eight extending in an almost arc shape from the center of the Ig1 rotation operating part.