JP2002021060A - Vibration plate, for separation control - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a damage to a light-intercepting eye when operating a vibration plate under a columnar object or operating by lifting it up. SOLUTION: This device is related to a vibration late for separation control which is operated by a control signal from a controller held by the hand of a person, and the control signal from the controller is transmitted to a vibration plate (1) from the controller. An IR light-intercepting eye (5) of the vibration plate is attached to the top of a retractable attaching plate (6), and any damage to the light-intercepting eye under the effect of an external force can be prevented by the protection using a spoke-shaped protecting grid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION Isolation control vibrating plates are often operated by control signals from a hand-held control device, which transmits control signals to the vibrating plate by infrared (IR) light. .

[0002]

The receiving eye on the control plate must be mounted on the top of the plate so that the signal is not disturbed during operation. Especially when operating the plate in pipe trenches, it is important that the overall height of the plate is as low as possible, so that, for example, even if there are columns between the sides of the groove Can be.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to prevent the light receiving eye from being damaged when the vibrating plate is operated under a columnar object by attaching the light receiving eye so as to be retractable, and for example, to use a track fork ( The purpose is to protect the receiver when lifting and maneuvering plates in truck forks or excavator buckets.

This means that the grid is pushed into the plate housing by a mechanical load on a spring-loaded mounting plate having a spoke-shaped protective grid surrounding the receiving eye, as claimed. This is achieved by attaching the receiving eye in a simple manner. In addition, the spokes of the protective grid are inclined with respect to the horizontal plane in such a way that the grid is depressed when subjected to vertical or horizontal forces.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail by means of the accompanying drawings.

FIG. 1 is a side view of a separation control vibration plate 1 having a bottom plate 2 and an eccentric vibration element 3.
Part 4 is the upper cover of the vibrating plate, through which the spring loaded IR receiving eye protrudes. FIG. 2 shows the mounting plate 6 of the IR light receiving eye 5,
The mounting plate is held in an upper position by a coil spring 7, which moves freely on guide pins 8. The guide pins are mounted on a plate 9, which is then mounted on a hydraulic tank 10 of a vibrating plate.

FIG. 3 is a view seen from above the IR light receiving eye.
The installation of the IR receiving eye itself on the mounting plate 6 by the circular plate 11 is shown, the circular plate 11
2 secures to the mounting plate. The circular plate 11 has a spoked steel crosspiece 13 surrounding the IR receiver and designed to protect the receiver in the event of encountering an obstacle. The upper position of the mounting plate 6 is determined by recessed screws 14 which are screwed into the guide pins 8 as shown in FIG. The cylindrical portion of each screw hole in the mounting plate for the screw 14 is slightly larger in diameter than the guide hole. The mounting plate 6 is held in its upper position by a coil spring 7, whereby the mounting plate and the IR
The light receiving eye can be retracted to a protection position below the height of the vibration plate cover 4 by the action of an external force.

[Brief description of the drawings]

FIG. 1 is a side view of a vibration plate having an IR light receiving eye.

FIG. 2 is an enlarged view of the IR light receiving eye shown in FIG.

FIG. 3 is a diagram of an IR light receiving eye viewed from above.

FIG. 4 is a vertical sectional view of the light receiving eye (a sectional view taken along line AA in FIG. 3).

[Explanation of symbols]

 2 Bottom plate 5 Light receiving eye 6 Mounting plate 7 Spring 8 Guide pin

Claims (1)

[Claims] 1. A separation control vibration plate operated by a control signal from a control device held by hand, wherein a control signal from the control device is transmitted to the vibration plate by infrared light, IR receiving eye (5)
It is mounted on a retractable mounting plate (6) having a spoke-like protective grid (13) surrounding the IR receiving eye, by means of which the IR receiving eye, when subjected to an external force, has its mounting plate By being mounted on the guide pin (8), it retracts below the height of the plate upper cover (4) and returns to its upper position by the action of the coil spring (7) mounted on the guide pin. Device.