JPS5811822Y2 - Crane working status display device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a working status indicator for a crane.

Conventionally, in this type of work status display, display selection switches are generally arranged close to a part of the display panel in a row.
I often made the mistake of operating the wrong display selection switch.

The present invention has devised the layout of the display selection switch to prevent such mistakes from occurring.The feature is that a schematic diagram of a crane is drawn on a part of the display panel, and each part corresponds to the corresponding part in the schematic diagram. The purpose of the present invention is to provide a selection switch for the operation of the selection switch, and to guide the operator's fingertips correctly using the above-mentioned diagram to avoid errors in operating the selection switch.

An example will be explained.

In this embodiment, among the display elements for displaying the working status of the crane, the boom length and the hanging load 2 working radius are displayed.

In FIG. 1, reference numeral 1 denotes a panel of a working status display.

Reference numeral 2 denotes a display device for selectively displaying each display element, which is a known device using liquid crystal and is designed to display digitally.

3 is boom 34. Hook 35. Figure 31 is a schematic diagram of the crane showing the swivel platform 36, accompanied by a diagram 31. showing the boom length; A line diagram 322 showing the suspended load and a line diagram 33 showing the working radius are drawn based on the above-mentioned schematic diagram.

At 31, 32 and 33 in the diagram, a switch 41 for selecting the display of the boom length is placed in the diagram 31, and a switch 42 for selecting the display of the suspended load is placed in the diagram 32 for displaying the working radius. A selection switch 43 is arranged in the diagram 33.

Each of these display selection switches 41 to 43 is connected to the display device 2 through an electric circuit, and when any of the selection switches 41
43, only the display elements corresponding to the switch are selectively displayed on the display device 2.

Note that each of the display selection switches 41 to 43 may be of any type, but in this embodiment, a push button type is used for ease of operation.

With this structure, the operator can accurately press the button (display selection switch) by guiding the crane schematic diagram 3.
can be pressed, and the push button (display selection switch)
The working status displayed on the display devices 2 corresponding to 41 to 43 can be easily recognized.

The present invention is not limited to the embodiments described above, but the following various embodiments can be considered within the technical idea of the present invention.

Display elements not shown in the above embodiments include jib length, boom luffing angle, boom swing angle, and ground lifting height.

There are the remaining amount of wire rope, the number of wire ropes to be hung, the safety limit rate, the amount of outrigger extension, etc., and it is natural to consider selecting any of these display elements and displaying them on the display device 2 as necessary. It will be done.

In this case, the crane diagram on the display panel needs to be one that is easy to illustrate each display element, and there is no particular restriction on the expression method or format, but it should be easy to see and understand. It is desirable that the diagram be recognizable.

For example, Figure 2 shows the outrigger extension amount, wire rope remaining amount,
This is an example of a schematic diagram in which the boom rotation angle and the number of wire ropes are displayed.

In this figure, numerals 44 to 47 are display selection switches for husband display elements.

The number of display devices 2 need not be one, but may be two or more, and it is also possible to display two or more display elements at the same time.

Furthermore, it is also possible to use it in combination with a display device that always displays certain display elements. For example, in the embodiment shown in FIG. 1, the boom lifting angle is always displayed by the display device 5.

In addition, the display device 2 is configured to always display a specific display element, and only when the display selection switch 41, 42, . . .
Display elements 31, 32, etc. corresponding to...
It may be configured to display .

For example, in the embodiment shown in FIG. 3, the indicator 2 is the ratio of the safety limit rate (load rate (actual moment to allowable limit moment or actual load to allowable load) to the crane's overturning limit or mechanical strength limit), and the display unit is yen. ) and display elements corresponding to each selection switch 41 to 43, such as boom length and lifting load 2 working radius, are displayed, but only the safety limit rate is displayed at all times. Only when a display selection switch is operated, the display element corresponding to the selection switch is displayed.

In other words, when none of the display selection switches 41 to 43 are operated, the display device 2 displays the safety limit rate, so the operator does not need to perform any operation on the safety limit rate, which is of interest to the amount being worked on. This has many advantages in terms of safe work, as it allows you to recognize it without worrying about it.

Boom length and hanging load can be determined by display selection switch.

The working radius is displayed in combination with an electrical or mechanical timer mechanism so that it is displayed for a certain period of time (for example, several seconds) after operating the display selection switch 41, 42, 43 (after pressing the push button). When the display is finished, the display may automatically return to the safety limit rate, and while operating the display selection switches 41, 42 and 43 (while pressing the push button), the boom length (hanging load 2 working radius) ) may be displayed, and when the operation is canceled (released from the push button), the display returns to the safety limit rate.

The present invention has been explained above with reference to various embodiments, but in short, the present invention is highly effective in eliminating operational errors, which in turn greatly contributes to ensuring the safety of cranes.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram of a display panel according to one embodiment of the present invention;
The figure is a schematic diagram of a crane drawn on a display panel of another embodiment, and FIG. 3 is a configuration diagram of the display panel of another embodiment. In Fig. 3, 6 is an alarm, which operates in conjunction with the indicator 2, and includes a lamp 61 that lights up at a safety limit rate of 90%, a lamp 62 that lights up at a safety limit rate of 100%, and a buzzer (not shown). A device consisting of

Claims (1)

[Scope of claim for utility model registration] Boom length, jib length, boom heave angle, boom swing angle 2 working radius, lift above ground, remaining amount of wire rope, number of wire ropes, hanging load, safety limit ratio, outrigger extension amount, etc. a display device that selectively displays each display element representing various crane working conditions; a display selection switch having the same number of display elements as the number of display elements that selects the display of each of the display elements on the display device; 1. A working status indicator for a crane, comprising: a schematic diagram of a crane; and the display selection switch arranged corresponding to each corresponding part in the schematic diagram.