JPS59215615A - Selector 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 [Technical field to which the invention pertains] The present invention relates to a selector switch that is attached to a switchboard or control board 6n and operates a breaker, a disconnector, an electromagnetic contactor, a small electric motor, etc.

[Prior art and its problems] As a conventional device for this German selector switch, the one shown in FIG. 1 is known. In FIG. 1, a handle l is fixed to the case 2 together with the handle receiver 6 by screws 611. Attach the receiving plate 3 to the operating shaft 4 by caulking, and fix the spring receiver 151 and the notch piece 14 to the operating shaft 4.
to the receiving plate 3. The spring receiver 151 and the notch piece 14 are integrated,
The spring 15 is attached to this, and one end of the inner gasket 10 is fitted between the receiving plate 3 and the spring receiver 151, and then inserted into the case 2. The handle l and the operating shaft 4 are connected by inserting it into the groove provided in the handle l. A base 5 is fixed to the case 2, and has a hole 51 into which the lower end of the operating shaft 4 is loosely fitted, and a cam surface 52 on which a pin 141 protruding from the outer periphery of the notch piece 14 slides.
The other end of the internal packing 10 is sandwiched between the base 5 and the case 2. A control cam 11 is attached to the operating shaft 4 by a screw 62.
is fixed, and the plungers 12', 12 of the switches 13, 13 are operated by the cam 111 of the control cam 11. Attach the ring packing 9 to the case 2 of the selector switch integrated in this way, insert the selector switch into the hole of the panel 8 from the back side of the panel 8 (bottom 1111 in the figure), and insert the selector switch from the surface of the panel 8 into the case 2. 2
The selector switch is attached to the panel 8 by tightening the nuts 7.

To operate the selector switch attached to the panel 8, when the handle l is twisted, the operating shaft 4 connected to the handle receiver 6 via the engagement protrusion 311 of the receiving plate 3 rotates, and the control cam 11 is rotated accordingly. rotates. Cam 1 is rotated by control cam 110.
11 slidingly contacts the plungers 12 , 12 of the switches 13 , 13 , and at the same time, the pin 141 of the notch piece 14 fixed to the operating shaft 4 comes into sliding contact with the cam surface 52 of the base 5 , thereby creating a notching sensation, that is, the notch piece 14 When the cam surface 52 and the cam surface 52 come into contact with each other, the spring 15 is contracted, so that the spring 1
The force 5 acts in a direction that prevents the handle 1 from twisting, and the twisting of the handle 1 becomes heavier, causing the control cam 11 to close the switch 13,
]: A feeling of notch is formed that 3 is about to be operated. When the handle 1 is further twisted after the user feels a notch, the switches 13 are operated by the cam 111 of the control cam 11.

By the way, this glazed selector switch has multiple switches 1.
3, 13 are installed, but this switch 13, 13
The contact operating configuration of is determined by the cam 111 of the control cam 11. This will be explained using an exploded view of the control cam 11, which is not shown in FIG. In FIG. 2, the control cam is again indicated at 11, and at the point X of this control cam one of the switches 1
The normally closed contact 3 (hereinafter referred to as the A contact) is "open", the normally closed contact (hereinafter referred to as the B contact 5) is "closed", and at the Y point and the Z point, the A contact is [closed J], and the b contact is "open". ", and at point X1, the a contact of the other switch 13 is "open J," the b contact is "closed," and Yi
At the point, a contact operation configuration is obtained in which the a contact is "closed J" and the b contact is "open J," and at the Z point, both the a contact and the b contact are "open."

However, since such a contact operation configuration is required by the customer, it is necessary to change the contact operation configuration each time a request is made. Therefore, the control cam must be replaced every time the customer requests it, but in conventional equipment, the entire control cam itself must be replaced even if the contact operating configuration of one switch 13 does not need to be changed. This method has disadvantages in that it is very troublesome to manufacture and manage control cams with contact operation configurations that meet customer requirements.

[Purpose of the invention]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a selector switch which eliminates the drawbacks of conventional devices, allows for free combinations of contact operation configurations, and allows the necessary '1 contact operation configuration to be obtained immediately upon request. .

[Summary of the Invention j According to the present invention, the object is to provide a selector switch that operates a plurality of switches via a cylindrical control cam by twisting a handle, in which the control cam is pivoted to a plurality of cam pieces. This is achieved by cutting and dividing the cam piece in the direction and providing a cam surface for operating the switch at the lower end of each divided cam piece.

[Embodiments of the invention]

Next, one embodiment of the present invention will be explained in detail with reference to the drawings. 3 to 5A to 5D each show an embodiment of the present invention 2, FIG. 3 is a sectional view of the selector switch, FIG. 4 is an exploded view of the main part, and 5/11 to 5D are respective parts diagrams. In the drawings, parts having the same functions as those of the conventional device shown in FIG. 1 are given the same reference numerals.

A biconcave rotatable member is attached to the case 2, and the rotary cylinder 30 has a cylindrical shape and has two protrusions 30a and 30b as shown in FIG.
The protrusions 30a and 30b form the step 2a of the case 2.
By engaging with the case 2, the rotating biconcave portion is rotatably mounted on the case 2. The upper cylinder 30c of the rotating cylinder 30 has a handle l.
is attached, and this handle 1 is inserted into the upper cylinder 30c with the cylindrical rod 31 removed, and then the frame 31 is attached to the handle 1.
It is fixed to the rotary cylinder 30 by pushing it into the rotary cylinder 30. A notch cam is attached to the rotary cylinder 30, and this notch cam has a cylindrical shape as shown in FIG. 4 and has a protrusion 2 on its upper outer periphery.
, a, and by fitting this protrusion 21a into a groove 30d provided in the rotating cylinder 30, it is integrally attached to the rotating biconcave. A control cam 21 is attached to the inner wall of the notch cam which is integrated with the rotary biconcave and folded into the rotary cylinder 30K.As shown in FIG. a flexible leg 21a;
It can be installed by inserting it into the notch cam fitting as follows. That is, as is clear from FIG. 5A showing a cross-sectional view of the notch cam, the inner wall of the notch cam has a protrusion 20b,
As is clear from FIGS. 5B and 5C showing a plan view and a side view of the control cam 2, the control cam 21 is connected to the cam piece 2.
It is divided into 1b and 21c, and a cam piece 21b,
21c is provided with flexible legs 2ia each having a window 21d, and after the control cam 21 is assembled by fitting the convex portion 21e and the concave portion 21f provided at the ends of the cam pieces 21b and 21c so as to face each other. By inserting the flexible leg 21a into the notch cam 20 and engaging the window 21d of the flexible leg 21a with the projection 20b, the control cam 21 is integrally attached to the notch cam, as shown in FIG. 5D.

Returning to FIG. 3, a columnar protrusion 5a is formed on the base 5 fitted to the case 2, and a hole 23 is formed in the columnar protrusion 5a in the box 23b of the notch ring as shown in FIG.
a is inserted, and this notch ring base is pressed upward in the figure by a spring 15.

A bottle 23C is provided on the inner wall of the notch ring holder, and the top surface of this bottle 23c can be slidably contacted with a cam surface 2fJb provided at the lower end of the notch cam fitting. The pace 5 is slidably provided with a push piece 24.2.
The upper end of 4 is in sliding contact with the cam surface 21g of the control cam 21, and the lower end of 24 is in sliding contact with the cam surface 21g of the control cam 21.
It faces ゜12. The selector switch assembled in this manner is attached to the panel 8 by attaching the ring pankin 9 and passing it through the hole in the panel 8 from the back of the panel 8, and then tightening the nut 7 screwed into the case 2.

The operation of the selector switch shown in FIG. 3 is such that when the handle 1 is twisted, the notch cam is rotated via the rotary cylinder I.
Along with this, the control cam 21 rotates. Due to the rotation of the notch cam, the cam surface 20b becomes the notch ring bottle 23.
When the notch ring n is pressed down against the spring 15 in contact with c, a notch sensation is obtained. After this notch feeling is obtained, when the handle 1 is further twisted, the cam surface 21g of the control cam 21 pushes down the pusher, and the switch 13
, 13 are pushed down to operate the switches 13, 13. At this time, if the notch cam is of the manual return type shown in FIG. 6A, the notch cam is returned to its original state by twisting the handle 1 in the opposite direction of operation.

If the notch cam attachment is of the automatic return type shown in Fig. 6B, the notchi cam ribs will release the spring 15 by releasing the handle 1 after operation.
0 action returns to the original state. When the notch cam lock is a combination of an automatic return type and a manual return type as shown in FIG. 60, the notch cam lock performs seven different operations depending on the operating direction of the handle 1. As described above, according to the present invention, the automatic return type, two manual return types, and a combination of these types of opening/closing operations can be obtained by simply replacing the notch cam.

Next, since the control cam 2 is assembled in two pieces, the combination of the cam pieces 21b and 21C can be changed depending on the required contact operation configuration of the switches 13 and 13. This will be explained using developed views of the cam piece 21b shown in FIGS. 7A to 7D. In the cam piece 21b shown in FIG. 7A,
At point Y, the normally closed contact (hereinafter referred to as A contact) of the switch 13 is "closed".
A cam is obtained in which the a contact is "closed J" and the b contact is "open" at two points, and in the cam piece 21b shown in FIG. 7B, the a contact is "closed J" and the b contact is "open" at the X point. The a contact is “open” at the Y point and the Z point.
, a cam with the b contact "closed" is obtained, and in the cam piece 21b shown in Fig. 7C, the a contact is "closed" at the ", the cam with the b contact "closed" is obtained, and in the cam piece 21b shown in FIG. 7D, the a contact is "open" at the X point, the a contact is "closed", and the a contact
Both contacts are "open", and the a contact is "closed" at two points.

A cam with the b contact "open" is obtained. By combining the cam pieces 21b divided in this way as required,
Various control cams 21 can be obtained depending on the contact operation configuration of the switch, and since the control cam 21 is removable, it is only necessary to attach the control cam according to the needs of each case, which saves time and effort in manufacturing management. It doesn't cost.

〔Effect of the invention〕

As explained above, according to the present invention, a cylindrical control cam is cut in the axial direction and divided into a plurality of cam pieces, and a different switch contact operation configuration is obtained on the lower surface of the divided cam pieces. By forming a cam surface for this purpose, it is possible to easily obtain a contact operation configuration that meets the customer's requirements by combining the cam pieces, and since this combination is Yamada, the contact operation configuration that meets the customer's requirements can be easily obtained. Since there is no need to manufacture and manage the control cam having the configuration, there is an advantage that management is not time-consuming.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a conventional device, Fig. 2 is an exploded view of the control cam of the conventional device, and Figs. 3 to 5A to 5
Figure D shows one embodiment of the present invention, Figure 3 is a sectional view, Figure 4 is an exploded view of the main part, Figures 5A to 5D are parts diagrams, and Figures 6A to 6C are respective diagrams. Developed views of the Notchicam according to the present invention, Figures 7A to ff17D
Each figure is a developed view of a cam piece of a control cam according to the present invention. l: Handle, 20=Notchicam, 20b: Cam surface, 21
: control cam, 21b, 21C: cam piece, 21g: cam surface, 23 = notch ring, 30 two-rotation barrel. 1,100 + 30 years old 40 Oh, 5DI211 Homme B mouthpiece 7A (3) Off day map

Claims (1)

[Claims] 1) In a selector switch that operates multiple switches via a cylindrical control cam by twisting the handle, the control cam is axially cut and divided into multiple cam pieces; A selector switch characterized in that a cam surface for operating a switch is provided at the lower end of each cam piece.