JPS60501582A - Manual activation of electric switches - 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] Technical field This invention is a manual activation device for an electric switch, and the device has a door. The operating handle is rotatably supported and has a switch. Regarding the switch actuation device that prevents the door from opening when the switch is on. .

Background of the invention The industrial switch is housed in a safety case.

However, it is desirable to be able to operate the switch without opening the case each time. A switch operation lever linked to the operating handle is provided so that it can be operated from outside the case door. ing. However, the door must be opened whenever necessary, such as replacing the fuse. There is. Therefore, the handle and switch operating rod can be attached and detached using a claw or other means. is connected to. However, the door should only open when the switch is off. is important for safety. Therefore, the door is locked when the switch is on. Such locking means are provided because it is necessary. Furthermore, the switch can be operated reliably. The operating handle and switch position (corresponding to on or off state) must be (position) must always match. However, in the case as Moe Matsurima There may be a discrepancy between the installation of the switch and the handle on the door side. Even if the switch operation is completely smooth, compensation for mismatch must be ensured. stomach.

There are several proposals as countermeasures for this problem. The normal way is to operate the handle and switch. It is important to allow enough room for the installation so that it can be adjusted so that it is correctly related to the rod. That is.

However, this method is prone to inaccuracies and has the disadvantage of requiring time to assemble. . In particular, the door locking mechanism becomes complicated.

In many cases, it is difficult to determine how precisely the locking mechanism and the connection to the switch operating rod are interlocked. It all depends on the situation.

Disclosure of invention This invention has been made to solve the problems of the prior art described above, and is based on the first aspect. In some cases, the means for compensating for coupling discrepancies is provided by means of a housing integral with the switch operating rod. and the means engages with a handle provided on the door of the switch case. In particular, they are formed in such a way that they perform a reasonable interconnection function.

According to a second aspect, the compensating means is such that the positions of the switch and the handle coincide completely. It is formed like this.

According to a third aspect, the compensating means comprises key and keyway means.

According to a fourth aspect, locking of the case door can be performed from outside the compensating means. .

According to a fifth aspect, according to a sixth aspect that further specifies the fourth aspect, The switch-actuated handle provides a complete means of locking the case door.

A seventh aspect provides means for positively engaging the handle with the compensating means.

The eighth aspect positions the compensating means accurately so that the handle and switch always coincide That's what I do.

Brief description of the drawing The present invention will be explained in more detail based on the accompanying drawings.

FIG. 1 shows a structure according to the prior art, and FIG. 2 shows a perspective view of a structure according to the present invention. 3 are sectional views showing the embodiment shown in FIG. 2 in detail.

Best mode for carrying out the invention FIG. 1 shows a conventional material. That is, compensation means for the operation of the switch and A lock that prevents the cover door that supports the handle from opening when the switch is on. 2 shows an actuation handle with means.

Hand/I/1 is supported by a shaft 2 rotatably supported by a door (not shown). . The shaft 2 has a cross plate with a protruding pin 3, said protruding pin 3 being connected to the first strand of the disc 5. It engages with the slit 4. A second slit 6 passes through the center point of the disk 5 and the first slit 6 passes through the center point of the disk 5. The slit is provided in a direction perpendicular to the slit. The switch is operated in the second slit 6. The end of the rod 7 is inserted. The length of the second slit 6 is an operating rod with a square cross section. Since the width of the rod 7 is larger than that of the rod 7, the disk 5 can slide from side to side on the rod 7. Can be done. The disc 5 has a notch 8 in a part of its periphery. The length of operating rod 7 is the case It must be adjusted by the position of the switch inside. Pin 3 and first slit 4 can be combined freely, and only when the positions of hand/I/1 and switch match, both will be connected. Match and engage. If the directions of the million-shaft 2 and the operating rod 7 do not match, the pin 3 Adjust one of the first slits 4 and press the operating rod 7 within the slit 6. Adjust By performing compensation while rotating the handle 1, the torque of the handle L is reduced. The switch is operated by transmitting the signal to the switch. switch on In this case, the claw 9 provided on the inside of the door to prevent the door from opening protrudes and prevents the switch from opening. The disc 5 will be held firmly unless it is in a position corresponding to the tip. in this position The claw 9 is located opposite the notch 8.

The prior art switch actuators described above are mechanically weak and inconvenient to use. . If there is a large discrepancy between the door handle and the switch inside the case, a correspondingly large amount of compensation will be provided. This requires movement of the stopper, but this accelerates wear, especially wear of the second slit 6. The movement of the disc 5 or the operating rod 7 becomes loose. Claw 9 also compensates for this loosening. The disk 5 has sufficient movement not only for the purpose of moving, but also for normal use. It must have a dynamic area. However, with the above structure, it is difficult to operate the switch. Since the movement is 90 degrees, the range of compensation is also restricted.

This invention was made to solve the above-mentioned drawbacks of the prior art, and is shown in Figure 2 and below. Explain below. In FIG. 2, the housing 1o having the tapered portion 11 is It has become a means of compensation. The housing 10 is connected to the switch operating rod 7 via the sleeve 12. It is set in. The tapered part 11 allows smooth insertion of the hand/l/1 into the insertion hole 13. This is to do so. The handle l is rotatably attached to the door (not shown). Ru. The housing 1o as a compensating means has an insertion hole 13 located at right angles to the housing 10. When in the correct position, the protrusion 14 in the housing 10 engages with the thrower (15) on the large insertion side. do. A sliding body 17 supported by the handle support 16 is provided adjacent to the insertion hole 13. (Fig. 3a). The sliding body 17 is sprung downward as indicated by the arrow shown in FIG. 3a. energized by a ring.

The sliding body 17 is forcibly pushed away when the housing 1o is inserted into the insertion hole 13. It is supported by the force of the pulling force and can only be detached from the housing 10 once. child This prevents the handle from separating from the switch operating rod 7, so the door is closed. It will be locked. This is the on state of the switch. sometimes outside the door In some cases, the lock may be unlocked by inserting a special tool from the Since this has been done since then, the explanation will be omitted. Do not open the door when the switch is off. need to be This is done by means of an edge 18 at the rear end of the taper.

This edge 18 pushes the sliding body 17 so that the housing 10 is removed from the insertion hole 13. let The greatest advantage of the present invention is that the locking action This means that it works only when Uzing 1o is in the position corresponding to the on state of the switch. That is.

This allows the locking device to always work in the same location, so a small locking device can be used. Insertion and withdrawal occur within normal manufacturing tolerances.

To further explain in Figure 2, the handle and switch are always the same as when manufactured. They are now able to maintain their dignity as if they were in the same relationship. It is claim 8. In other words, the switch rod 7 is provided with a longitudinal groove 22, and the sleeve 12 is provided with at least two through holes 23, 24, one of which has an inwardly projecting pin. When the switch operating rod 7 is inserted into the sleeve 12, it engages with the groove 22. let In this way, the switch operating rod 7 and the sleeve 12 are integrated. The door crashes The door is closed when the raised piece 14 fits into the slot 15 of the handle. Even when the switch is closed, the switch position can be determined from the handle position.

If the handle is in a certain position, for example vertically on and horizontally off, When the switch is installed on one side due to the extra space inside the case, This is a problem if the switch lever is mounted on the other side. this place If so, the pin in the through hole 24 of the sleeve 12 can be inserted into the through hole 23 for adjustment. Tooru Although not shown in the drawings, four holes 23 and 24 are provided on the outer periphery of the sleeve 12.

Figures 8a and 81) show the main parts of the compensation means provided in the housing 1o. . This occurs when the switch operating rod is parallel to handle 1, but the rotation axis is different. The compensation method is shown below. It is difficult to transmit rotational motion between two parallel axes. That's a problem. In this regard, conventional methods are employed. Sunawa This can be done by sliding them in the direction of one page perpendicular to each other. According to the present invention, the As shown in Figure 3b, there are two protrusions on one side and the other side of the member 19 whose axes are perpendicular to each other. 20.21 shall be provided. Connect one of these protrusions to a slot protruding into the housing 10. Insert the collar 25 into the groove of the collar 25 provided on the tube 12, and insert the other protrusion into the housing body. Insert and connect as appropriate. The part shown in Figure 3b is the housing which is the compensation means. The movement of the hand/I/1 that operates the switch 10 is controlled via the sleeve 12 by the switch operating lever. 7.

This part is shown as a different hatch in FIG. 3a. The groove is It is longer than the protrusion 20.21 and can slide inside each groove. There is. The one shown in FIG. 3b performs the same function as the disk 5 in FIG. deer However, the one shown in Figure 3b acts as a locking means for the door as in the prior art. It's not a thing. In the present invention, the locking of the door is performed elsewhere.

According to the present invention, the door is locked by the sliding body that moves parallel to the door. The handle and door are locked by a pin located separately from the handle, so the procedure is simple. It becomes easy.

This pin is pushed parallel to the rotation axis of the handle and placed in a predetermined position on the sliding body or door. engaged in the hole. The pin of this ridge should be locked with a locking means that can be opened and closed as appropriate. You can unlock the door and open it only when necessary.

According to this invention, the compensation action is permanent, the mechanism is not bulky, the structure is simple, and the structure is simple. There are various advantages such as not having to take much care in attaching the locking means.

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Claims (1)

[Claims] 1. A manual operating device for an electric switch, which is a case with a door. The operating handle is rotatably supported on the opening door and the switch is turned on. In an actuating device that never opens the door when the switch is on, the compensating means is a switch. The compensating means consists of a housing 10 provided on the operating hand/L. /1, the handle side and switch side are smoothly secured by engaging with A switch actuating device with a characteristic. 2. The compensating means 10 operates when the positions of the switch and the operating handle are completely aligned. The switch according to claim 1, wherein the switch is engaged with the handle. Chi actuating device. 3. In the patent claim, the compensating means 10 is connected to the operating handle 1 in a non-rotatable manner. A switch actuation device according to scope 2. 4. In normal use, the compensating means 1O is activated only when the switch is in the OFF state. Claims characterized in that the device can be removed from the insertion hole 13 of the VLO. 1. The switch actuating device according to item 1. 5. The sliding body 17 in the support body 16 of the operating hand μm is shaped on the rear end surface of the compensation means lOO. A patent that allows the means 10 to be pulled out by the action of the tapered portion 180 formed. A switch actuating device according to claim 4. 6. Working hand) The sliding body 17 in the support body 16 of Vl is located in front of the same hand/L/1. Claim 5, which is operated and locked using a tool from the surface part. Switch actuator as described in Section 1. 7. The front part 11 of the compensating means 10 is formed in a tapered shape to accommodate the operating hand/L/1. Switch operation according to claim 1, which allows easy insertion into the insertion hole 13. Device. 8. A longitudinal groove 22 is provided in the operating rod 7 of the switch, and the sleeve 1 of the compensating means IO is provided. 2 is provided with at least two radial through holes 23, 24, one of which projects inwardly. Insert the released pin into the groove 22 so that it will engage when the operating rod 7 is inserted into the sleeve 12. A switch actuating device according to claim 1.