JPS60137797A - Indicator for position of crane - 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] The present invention relates to a position indicating device for a crane.

When operating a crane, everything from rough operations to inching operations is carried out through dialogue between the driver in the operator's cabin and the flag signal from the slinging device near the hoisted load. This method quantitatively indicates the crane's hook position. It is difficult to do so.

The present invention was invented to address the above problems.
The gist of the crane is to provide a crane that is equipped with a position detection wheel, a detector that detects the rotation of the position detection wheel, and an indicator that indicates the position based on the output from the detector. Located in the indicating device.

Since the present invention has the above configuration, the position of the crane can be quantitatively and accurately indicated to the indicator in the operator's cab.
Since the crane can be operated based on this instruction, the crane can be operated easily, and the crane can also be operated easily even when the operator cannot confirm the sling position or when the sling operator cannot approach the suspended load.

Hereinafter, the present invention will be explained below.
This will be explained in detail with reference to Examples.

The crane moves on the rail (1) with the left and right saddles (2) (2)
The vehicle travels in the front-rear direction by driving the wheels (4) with the traveling electric motor (3) provided on the girder (5), and the left-right direction by driving the wheels (7) with the traversing electric motor (6) provided on the girder (5). rampant. Further, the hook θ0) is lifted or lowered by winding or unwinding the wire (9) by the hoist motor 8. hook a
[The shipments suspended in the above three electric motors (3), (6),
(8) moves back and forth, left and right, and up and down. In FIG. 3, 01) is a moving body such as a saddle.

02 is a position detection wheel for detecting the amount of movement of the main body (11), (+31 is a detector that detects the rotation of the position detection wheel via reduction gear 0, etc.;
3) an indicator that indicates the position based on the output from the (16)
is a rail. As shown in FIG. 4, when the main body 01) moves on the rail (16), the position detection wheels (121)
rolls, and when it rotates once, it is detected by the forward rotation detector (I3) by an amount equal to the diameter of the wheel 02 x π, and is displayed on the position indicator 05 installed in the driver's cab via the electric wire 09, and the amount of movement is detected. give quantitative instructions.

Although only the position detection of buried soil and the front-rear direction is shown, by providing similar devices in the other two directions, that is, the left-right and up-down directions, it is possible to indicate the hook position in six directions. In particular, be careful not to attach the rotation detector 0 floor to the wheels driven by the electric motor.
121 prevents the drive wheels from slipping on the rails (16) and causing errors.

Thus, by using the device of the present invention, it is not only possible to quantitatively indicate the sling position to an inexperienced lane operator, but also to provide instructions when the sling operator's hand signals are in a positional relationship that cannot be seen by the crane operator. It's easy. The service area of the crane is limited to the rail installation range, and therefore, if an address is determined in advance within this rail installation range, the crane can be accurately moved to a designated location.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a plan view of a lane for overhead running, Fig. 2 is an arrow diagram along line ■-■ in Fig. 1, and Fig. 3 is a schematic system diagram. , FIG. 4 is a side view showing how to attach the detector. Position detection wheel...Oz, detector...(13), indicator 09 Sub-agent Patent attorney Shigefumi Okamoto and 6 others

Claims (1)

[Claims] Based on a position detection wheel, a detector that detects rotation of the position detection wheel, and an output from the detector. A crane position indicating device comprising an indicator for indicating a crane position.