JPH0743909Y2 - Switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial application field" The present invention relates to a switch, and more particularly to improvement of a transmission mechanism for connecting an operating mechanism of the switch and an operating device.

"Prior Art" Generally, a switch is a transmission mechanism that connects an operating mechanism that is attached to the switch to open and close and an operating device that is installed at a position away from the operating mechanism and that drives the operating mechanism. It is configured.

FIG. 3 shows an example of a switch according to the prior art of this kind. The switch A has support insulators 2 and 2a planted on a base 1 and arranged at the upper end of the support insulator 2. While the base end of the movable contactor 5 is fixed to the shaft 4 rotatably attached to the support member 3, the tip end of the movable contactor 5 is held in contact with the upper end of the support insulator 2a. The fixed contactor 6 is disposed. Also this switch A
The operating mechanism B of the drive lever 7 includes a drive lever 7 for opening and closing the movable contact 5 through a mechanism (not shown), and the drive lever 7.
And a drive shaft 8 rotatably attached to the base 1. The operating device C that drives the operating mechanism B includes an operating source 9 such as a motor.
The operating shaft 10 is connected to the operating shaft 10 and is reciprocally rotated by being decelerated through a deceleration mechanism (not shown), and an operating lever 11 having a proximal end fixed to the operating shaft 10.

Further, the operating mechanism B and the operating device C are connected by an operating rod 12 formed of a rod-shaped or tubular rigid body.
That is, one end of the operating rod 12 is connected to the tip of the drive lever 7 of the operating mechanism B by a pin 13, and the other end is connected to the tip of the operating lever 11 of the operating device C by a pin 13a.
Are connected by.

FIG. 3 shows a closed state of the switch A. In this state, when the operation lever 11 is rotated clockwise by the operation source 9,
The drive lever 7 rotates counterclockwise via the operation rod 12. By the rotation of the drive lever 7, the movable contactor 5 is rotated counterclockwise about the shaft 4 by a mechanism (not shown), and the tip of the movable contactor 5 is separated from the fixed contactor 6 to open and close the switch. The opening operation of A is performed.

[Problems to be Solved by the Invention] In the above-mentioned conventional technique, since the operating mechanism B and the operating device C are connected by the operating rod 12 formed of a rod-shaped or tubular rigid body, the switch A and the operating device C are connected. It was necessary to change the length and the mounting position of the operating rod 12 each time depending on the arrangement.

In addition, when there is an obstacle between the operating mechanism B and the operating device C, there is a drawback that a connecting portion or the like for avoiding the obstacle and changing the direction is required on the way.

[Means for Solving the Problems] The present invention is intended to solve the above-mentioned drawbacks of the prior art, and connects an operating mechanism for opening and closing a switch and an operating device to rotate the operating device. In the case of transmitting force to drive the operating mechanism, the operating mechanism and the operating device are connected by a rotating wire which is flexible and rotatable.

"Operation" Since the operating mechanism and the operating device are connected by a rotating wire that is flexible and rotatably formed, the rotating wire can be arranged in a curved line, and the operating mechanism and the operating device can be arranged between them. Even if there is an obstacle, it can be connected as it is. Therefore, a connecting portion or the like for avoiding an obstacle and changing the direction is unnecessary.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings.
It should be noted that the same parts as those of the above-mentioned conventional technique are denoted by the same reference numerals, and the description thereof will be omitted.

FIG. 1 is a front view showing an embodiment of the present invention, and FIG. 2 is a first view.
It is an enlarged view which expands and shows the part enclosed with the dashed-two dotted line of a figure. In these figures, the flexible rotating wire 14
Is rotatably inserted into a flexible jacket 15, and one end thereof is connected to the shaft 16 of the operation source 9 of the operation device C ₁ , while the other end is formed with a male screw on the outer peripheral portion. Is connected to the threaded rod 17. The inner cylinder 19 in which the nuts 18 and 18a screwed to the threaded rod 17 are fixed inside is the drive lever 7
One end of the base 1 is slidably inserted into the outer cylinder 21 attached to the base 1 by a pin 20, and the other end is connected to the drive lever 7 by a pin 13 in the vicinity of.

Incidentally, D is an obstacle such as another device, and the rotating wire 14 is arranged in a curved shape so as to avoid the obstacle D.

Next, the operation of the above embodiment will be described.

When the operation source 9 of the operating device C ₁ is rotated clockwise with the switch A shown in FIG.
14 rotates clockwise in the outer cover 15. This rotating wire 14
Is transmitted to the screw rod 17, and when the screw rod 17 rotates, the nuts 18 and 18a are screwed onto the screw rod 17, so that the inner cylinder 19 moves in the outer cylinder 21 to the left in FIG. Slide on. As a result, the drive lever 7 connected to the inner cylinder 19 rotates counterclockwise about the drive shaft 8, and the movable contact 5 rotates counterclockwise about the shaft 4 in exactly the same manner as in the above-mentioned conventional technique. Then, the switch A is opened.

In the present invention having the above structure, the operating mechanism B and the operating device C ₁
Since the spaces are connected by the flexible rotating wire 14, the rotating wire 14 can be curvedly arranged, and even if there is an obstacle D, the operating mechanism B and the operating device C ₁ can be directly and directly connected to each other. Can be connected.

Also if in the long eyes than the distance the rotary wire 14 and the operating mechanism B and the operating device C _1, normal operating mechanism B and the operating device C ₁
The rotating wires 14 having one kind of length can be used for the arrangements of and.

In the above embodiment, one end of the rotating wire 14 is connected to the operating mechanism B.
When the operating mechanism B has a spring mechanism and the drive lever 7 is driven by this spring mechanism to open and close the switch A, one end of the rotating wire 14 is connected to the spring mechanism. The same effect as in the above embodiment can be obtained by connecting to.

[Advantages of the Invention] As described in detail in connection with the embodiments above, according to the present invention, even if there is an obstacle or the like between the operating mechanism of the switch and the operating device, it is possible to directly connect and change the direction. No need for connecting parts.

Further, if the length of the rotating wire is set to be long, it is possible to obtain an effect that one type of rotating wire can cope with a normal power transmission distance.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention, and FIG. 2 is a first view.
Enlarged view of the portion encircled by the alternate long and two short dashes line in the figure
The figure is a front view showing a conventional technique. In the figure, A is a switch, B is an operating mechanism, C ₁ is an operating device, and 14 is a rotating wire.

Claims (1)

[Scope of utility model registration request] 1. A rotating wire which is reciprocally rotated by an operating source, one end of which is connected to this shaft and which has a threaded rod at the other end and which has flexibility, and a proximal end of which is a switch. A drive lever that is rotatably supported and that opens and closes the switch by reciprocally rotating at a fixed angle, an outer cylinder that has a hollow portion and one end of which is attached to the switch, and the screw rod is screwed together. A nut that is fixed in the hollow part, has one end slidably fitted in the hollow part of the outer cylinder, and has the other end connected to the tip part of the drive lever. Characteristic switch.