JPH0338919Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lever operating device that adjusts the operation of various operating devices by switching a switch by tilting a lever.

In this type of lever operation device, a lever is supported by a spherical bearing so that it can be tilted freely, and a plurality of limit switches are arranged around the tip of the lever, so that when the lever is tilted, the tip of the lever is moved to one of the limit switches. Devices are known in which the switch is switched by pressing an actuator. If these limit switches are connected to the control circuit of the appropriate operating equipment,
The movement of the operating device can be adjusted by tilting the lever. However, in the conventional device described above, the force of tilting the lever directly becomes the force of pushing the actuator of the limit switch, so if the mounting position of the limit switch is incorrectly adjusted, the limit switch may be damaged or the switch may not turn on.

An object of the present invention is to provide a lever operating device that allows easy adjustment of the mounting position of a switch such as a limit switch and that does not apply unnecessary force to the switch.

This purpose consists of a push member disposed on the lever so as to be movable in the axial direction of the lever and protruding transversely to the axis of the lever, a switch disposed within the pushing movement area of the push member, and a switch that is movable in the lever axis direction. A stopper is disposed on the opposite side of the lever and stops the part of the push member that moves away from the switch in response to the tilting of the lever. This is achieved by providing an elastic means and making the above-mentioned pushing member from a material that deforms with a force greater than the pushing force for switching the switch.

Hereinafter, the present invention will be explained using drawings showing embodiments thereof.

FIG. 1 shows a lever operating device which is an embodiment of the present invention. In the figure, a lever 2 with a knob 1 on its head is supported by a ball bearing 4 placed in a spherical bearing surface formed in the center of a housing base 3 so that it can tilt in any direction. ing. A collar 5 that is slidable in the axial direction of the lever 2 and a collar 6 that is fixed to the outer peripheral surface of the collar 5 and extends in a direction substantially perpendicular to the axis of the lever 2 are provided on the lever 2 at a position below the ball bearing 4. It will be done. Brim 6
is made of an elastic material, for example plastic, and can be deflected in the axial direction of the lever 2 and can slide over the lever 2 together with the collar 5. A compression spring 8 is placed between the washer 7 fixed to the tip of the lever 2 and the collar 6, so that the collar 5 is pressed against the central upper surface 9 of the housing base 3. A stopper 11 is formed around the central upper surface 9 by the upper surface of the housing base 3 as well. The stopper 11 is retracted slightly above the upper surface 9.

Two legs 12a, 12b of housing base 3
There are four limit switches 14a, 1 at the tip of the
Printed circuit board 13 with 4b, 14c, 14d
is installed. A control circuit for controlling the movement of an operating device (not shown), such as a manipulator, is printed on this printed circuit board 13, and these limit switches give operation commands to the control circuit. Reference numeral 15 is a guide for regulating the tilting movement of the lever 2.

Since this embodiment has the above configuration, when the lever 2 is tilted to the left in the figure, one (left) of the collar 6 approaches the switch 14b, and the other (right) approaches the switch 14b, as shown by the chain line in the figure. Separate from 14d. The portion of the collar 6 that is separated from the switch gradually approaches the stopper 11 and finally stops against it. For convenience, this point of contact is called a contact point. If you continue tilting the lever 2, the collar 6
rotates counterclockwise about its contact point, and as a result, the collar 5 slides toward the tip of the lever 2 against the spring 8, and the collar 6 of the part closer to the switch slides against the spring 8.
moves further downward and presses the actuator of switch 14b. This causes the switch 14b to
Switches between ON and OFF. In this case, switch 1
Although the case where the switch 4b is switched has been described, any other switch can be switched by changing the direction in which the lever 2 is tilted.

Even if the lever 2 is tilted more than necessary and the actuator of the switch is pushed beyond the allowable pushing position during the switch switching operation described above, the collar 6 can bend in the axial direction of the lever 2, and unnecessary force will be applied to the switch. Therefore, there is no fear of damaging the switch itself or the printed circuit board 13. Further, since the limit switches 14a to 14d are attached to the substrate 13 on the opposite side to the side on which the actuator is provided, even if the mounting positions are shifted, the switching points of the switches will not be shifted. Therefore, the switch installation work becomes easy.

In the above embodiment, the flange 6 which is flexible in the axial direction of the lever 2 is used as a pushing member, and under normal conditions, the actuator is pushed in by the flange 6 to change the switch, while the actuator is at the allowable limit position. If unnecessary force is applied between the collar 6 and the switch by pushing the collar 6
The force is absorbed by bending the collar 6, but the pushing member is not limited to the collar 6, and the force required to push the actuator, that is, the pushing force for switching the switch, is It may be made of any material or shape as long as it can be deformed by a large force. However, if a flexible and therefore elastic member is used as in the above embodiment, even a once deformed member will return to its initial state once the force is removed, making it convenient to use repeatedly.

Although four limit switches are used in the above embodiment, the number can be changed depending on the purpose. It may be one piece.

As described above, according to the present invention, the pushing member can be deformed with a force greater than the pushing force for switching the switch, so there is no damage to the switch or the board for attaching the switch. Summer. Additionally, the mounting position of the switch can be easily adjusted.

[Brief explanation of drawings]

FIG. 1 is a front sectional view of an embodiment of a lever operating device according to the present invention, and FIG. 2 is a side sectional view of the device. 2... Lever, 6... Collar (pushing member), 14a,
14b, 14c, 14d... switch, 11...
Stopper, 8... Spring (elastic means).

Claims (1)

[Claims for Utility Model Registration] A lever operating device that has a lever that is tiltably supported and whose tilting angle is regulated, and that adjusts the operation of an operating device by tilting the lever, which is disposed on the lever. a push member that protrudes laterally with respect to the axis of the lever, a switch that is placed within the pressing action area of the push member, and a switch that is placed on the opposite side of the switch with respect to the push member that responds to the tilting of the lever. a stopper that stops the separating movement of the part that moves away from the switch; and an elastic means that biases the push member in the direction of moving away from the switch on the axis of the lever. What is claimed is: 1. A lever operating device made of a material that deforms with a force greater than the pushing force applied to the lever, and characterized in that the pushing member is slidably disposed in the axial direction of the lever.