JP3136110B2 - Crane specification display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crane specification display device for displaying the specifications of a crane by pictograms or the like.

[0002]

2. Description of the Related Art Cranes and jib cranes raise and lower a boom or jib to raise or lower a suspended load. However, the weight of a suspended load that can be suspended with respect to the angle of the boom or jib is limited. is there. For this reason, for example, a rated load value curve as shown in FIG. 14 is created, and when approaching or exceeding the rated load, the overload protection device that forcibly stops the work is used to generate the rated load value curve. Work within the range.

[0003] The rated load value curve varies depending on specifications such as the main body, the type of boom, the presence or absence of a jib, the boom length, the jib length, and the counterweight. For this reason, in the overload prevention device, a rated load value curve according to this specification is selected, and at the time of work, it is determined whether or not work is being performed within the range of the rated load value curve. When approaching, the operator is notified of a work limit by an alarm buzzer or the like, or the work is forcibly stopped.

[0004] The rated load value curve is obtained by, among a plurality of storage media such as a cassette storing a rated load value table according to the specifications of the crane, a storage medium storing the rated load value table according to the specifications of the crane. Selected by operator selection. Then, the selected recording medium is set in the overload prevention device, and work is performed based on the rated load value table stored in the selected storage medium.

Further, in a crane overload prevention device, for example, as described in Japanese Utility Model Publication No. 2-49276, the specifications of the crane are distinguished by color or shape and displayed on a display monitor such as a CRT. 2. Description of the Related Art There is known a crane specification display device that improves the workability of an operator. In this specification display device, for example, the shape or color of the crane displayed on the display monitor is changed according to the type of boom, the presence or absence of a jib, the presence or absence of a suspended load, and the like, so as to inform the operator of the crane specification. .

On the other hand, a plurality of rated load value tables are stored in a large-capacity ROM instead of a storage medium in which the above-mentioned rated load value table is stored in accordance with the weight of the counterweight or the like. A method has been proposed in which a rated load value table corresponding to the specifications to be selected is selected from a ROM, and work is performed based on the selected rated load value table. According to this method, it is not necessary to use a plurality of recording media in which the rated load value table is stored, or to select a recording medium according to the weight of the counterweight, etc., so that it is necessary to secure a space for storing the recording media. And the burden on the operator is reduced.

[0007]

However, in the overload prevention device using the ROM described above, although the specification including the weight of the counterweight is input in advance, during the operation, the operator is required to make a rating based on what specification. Since it is not known whether the load value table is selected and the work is being performed, means for allowing the operator to recognize this specification is required. Above actual fairness 2
In the specification display device described in JP-A-49276, although the specifications of the crane are displayed on the display monitor,
In order to display this specification based on color or shape,
It is difficult for an operator at work to understand at a glance.
Before starting work, it is necessary to input the specifications of the crane and select a rated load value table according to the specifications of the crane. May be caused.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a crane that allows an operator to easily recognize the specifications of a crane, to easily input the specifications, to shorten the input time, and to prevent erroneous input. To provide a specification display device.

[0009]

According to a first aspect of the present invention, there is provided a lower traveling structure, an upper revolving structure rotatably mounted on the lower traveling structure, and a boom rotatably mounted on a front portion of the upper revolving structure. And a counterweight attached to the rear of the upper revolving structure, and a crane specification display device having a drum that lifts and lowers a hanging rope suspended from a boom to move a suspended load up and down. Means for inputting the specifications of the crane interactively, a screen displaying input information for inputting the crane specifications interactively by the input means, and displaying the crane specifications as numerical and textual information together with a crane silhouette image. Display means for switching between screens to be displayed, and specifications of a plurality of cranes determined by a combination of components of the crane, Specifications disable the-option, to achieve the above object by providing a prohibiting means for prohibiting the display of the input information to the display means.

[0010] In the second aspect of the invention, the specifications include at least the weight of the counterweight, the type of the boom, and the type of the drum.

According to a third aspect of the present invention, in the crane specification display device according to the first or second aspect, the display means is means for further displaying a limit load and / or the limit work radius.

According to a fourth aspect of the present invention, in the crane specification display device according to any one of the first to third aspects, the specifications of one crane include a plurality of item values, and each item value includes a plurality of option data. That is, when option data in one item value is provisionally selected, an item corresponding to the option data is displayed only when there is an item corresponding to the option data.

According to a fifth aspect of the present invention, in the crane specification display device according to any one of the first to fourth aspects, a boom angle detecting means for detecting an angle of the boom, and a hanging load detecting means for detecting a load of the suspended load. Means, a working radius calculating means for calculating a working radius of the boom based on the input specifications, a limit working radius calculating means for calculating a limiting working radius based on the input specifications, and The apparatus further includes a limit lifting load calculating unit that calculates a limit lifting load, and a load ratio detecting unit that detects a load ratio that is a ratio of a load of the lifting load to the limit lifting load. , A means for displaying a load of a suspended load, a working radius and / or a load factor.

According to the first aspect of the present invention, the specifications of the crane are input from the input means in an interactive manner, and the input specifications are displayed on the display means as numerical values and character information together with the silhouette image of the crane. Of the specifications of the plurality of cranes, the specifications for which the selection is invalidated are prohibited from being displayed on the display means.

According to the second aspect of the present invention, the specifications include at least the weight of the counterweight, the type of the boom, and the type of the drum, and these specifications are displayed on the display means.

According to the third aspect of the present invention, the limit load and the limit work radius are displayed on the display means.

According to the invention of claim 4, when option data in one item value is provisionally selected, if there is an item corresponding to the option data, the item corresponding to the option data is displayed. I do.

According to the fifth aspect of the present invention, the boom angle is detected by the boom angle detecting means, the load of the suspended load is detected by the load detecting means, the working radius of the boom is detected by the working radius detecting means, and The load factor is detected by the load factor detecting means. The display means displays the boom angle, the load of the suspended load, the working radius, and / or the load factor detected by these detection means in addition to the above specifications.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a crane overload prevention device provided with a specification display device according to an embodiment of the present invention. As shown in FIG. 1, the crane overload prevention device according to the present embodiment includes an angle detector 1 for detecting a boom angle, a load detector 2 for detecting a weight of a suspended load suspended on the crane, Angle detector 1
And a calculation unit 3 for calculating a limit load, a working radius, an actual load, a load ratio which is a ratio of the actual load to the limit load, and determining an overload based on a signal from the load detector 2.
And input the crane specifications such as the main body, boom type, presence / absence of jib, boom length, jib length, drum type, counterweight type, and monitor such as CRT which displays various information described later. And an operation display unit 4.

FIG. 2 is a block diagram showing a detailed configuration of the arithmetic unit 3. As shown in FIG. 2, the calculation unit 3 includes a control device 10 that controls the driving and stop of an actuator that drives the boom or the drum, and calculates the above-described crane limit load, working radius, actual load, load ratio, and the like. And outputs a control signal to the control device 10.
And a ROM 12 storing a plurality of rated load value tables according to specifications.

FIG. 3 is an external plan view showing a detailed configuration of the operation display unit. As shown in FIG. 3, the operation display unit 4 includes:
A monitor 2 that displays a work state to be selected as described later.
0, select buttons 21A to 21D for selecting the displayed work state, and a determination button 22 for determining the work state selected by the select buttons 21A to 21D.

Next, the operation of the crane specification display device according to the present embodiment will be described. FIG. 4 is a flowchart for explaining the operation of the crane specification display device according to the present embodiment, FIGS. 5 and 6 are diagrams showing a work state displayed on the monitor 20 of the operation display unit 4, and FIGS.
FIG. 9 is a diagram illustrating an aspect of information displayed at 0. In step S1 shown in FIG. 4, first, the setting state is read. The setting state to be read here includes the main body, boom type, presence / absence of jib, boom length,
These are crane specifications related to jib length, drum type, and counterweight type. That is, first, the operation display unit 4
5 is displayed as a table on the monitor 20 of FIG.

On the work state selection screen shown in FIG. 5, the operator inputs the specifications of the traveling body, the boom, the jib, the drum, and the counterweight. In FIG. 5, the traveling body is from a crawler and a barge, the boom is from a standard (STD), an angle boom and a common boom, the jib is from no jib, a supplementary jib and a normal jib, and the drum is a main winding drum. It is possible to select from the auxiliary winding drum and the third drum, and the counterweight from 10t, 20t, and 30t. Here, the angle boom is a boom that is used for excavation and rif mag applications where the use conditions are severe because its own weight is heavy but it is easy to repair welded parts of diagonal materials, etc. A boom that can be used for both cranes and crawler cranes.

In FIG. 5, the running state, the boom, the jib, the drum, and the counter weight are all displayed on the work state selection screen. First, the work state selection screen of the running body is displayed. After selecting the work state of the traveling body, a work state selection screen for a boom, a jib, a drum, and a counterweight can be sequentially displayed to select a work state. At this time, the display form of the work state selection screen can be changed according to the specifications. For example, if no jib is selected on the jib work state selection screen, the jib is not used and the auxiliary drum or the third
Since the drum is not used, it is possible to prevent the selection screen of the auxiliary drum and the third drum from being displayed on the next operation state selection screen of the drum.

Then, from the work states displayed in this manner, the operator selects the selection button 21A shown in FIG.
21D, the blinking cursor is moved to select a desired work state, and the determination button 22 is used to determine the work state. In this embodiment, FIG.
As shown by diagonal lines, the traveling body is a crawler, the boom is a standard, the jib is absent, the drum is a main winding drum, and the counterweight is 10t.

When the specifications of the running body, the boom, the jib, and the drum are selected, the monitor 20 displays a work state selection screen as shown in FIG. 6 as a table. On the work state selection screen shown in FIG. 6, a boom length and a jib length are input. In FIG. 6, the boom length is from 22 m to 43 m, the jib length is no, and 6 m to 15 m.
m. Then, from the work states displayed in this manner, the operator selects desired work states with the select buttons 21A to 21D shown in FIG. In the present embodiment, since a 22-meter boom is used and no jib is used, the work state shown by the diagonal lines in FIG. 6 is selected. At this time, for example, when no jib is selected on the jib work state selection screen shown in FIG. 5, 6 to 15 are displayed on the work state selection screen shown in FIG.
It is also possible not to display the selection screen for the jib length of m.

Next, in step S2, a detector is read. What is read here is the angle detector 1
And signals representing the boom angle and the load of the suspended load from the load detector 2. Next, in step S3,
Displays the setting status. Here, the specifications set on the operation display unit 4 are displayed on the monitor 20 in the process of step S1. The display mode is a combination of the set items. For example, as described above, when the traveling body is set to the crawler, the boom is set to the standard, the jib is set to the non-jib, the drum is set to the main winding drum, and the counter weight is set to 10 t, the display mode is as shown in FIG.

That is, as shown in FIG. 7, the specifications of the crane inputted from the operation display section 4 are displayed by characters together with the silhouette image of the crane. As shown in FIG. 7, the image of the traveling body portion is used as a crawler image on the monitor 2.
0 is displayed in the part 31 and the boom part is the part 3 with the character “STD” along with the silhouette of the standard boom.
2, there is no jib, so the word "main" is displayed in part 33, indicating that the drum is a main drum,
The counterweight is displayed in the portion 34 together with a silhouette image in which the number "10t" indicates the size of the counterweight. Also, the number of the selected boom length “22 m” is displayed as a number in the portion 35.

Next, in step S4, the boom angle is calculated and displayed. The processing in step S4 is based on the fact that the signal representing the angle of the crane detected by the angle detector 1
The processing is performed by U11, and the angle of the crane is displayed as a numerical value on the monitor 20. In the present embodiment, the boom angle of “50 °” is displayed on the portion 36 of the monitor 20 as shown in FIG. Next, step S5
In, the operation radius is calculated and displayed. The processing in step S5 is to calculate the work radius by performing the calculation based on the boom angle and the boom length calculated in step S4, and display the result on the monitor 20. The calculation in step S5 is performed by a predetermined well-known calculation formula.

As a result of this calculation, in this embodiment, the numerical value of the working radius of "12 m" is displayed on the portion 37 of the monitor 20. At the same time, the boom height is calculated by a predetermined well-known calculation formula, and the boom height is also displayed on the monitor 20. As a result of this calculation, a numerical value of the boom height of “13.5 m” is displayed on the portion 38 of the monitor 20 in the present embodiment.

Next, in step S6, a limit load is calculated. The calculation of the limit load is performed by the CPU 11 based on the specification input from the operation display unit 4.
Is selected and the limit load is calculated from the selected rated load value table. That is, based on the specifications of the counter weights among the specifications input from the operation display unit 4 in step S2, one of the plurality of rated load value tables stored in the ROM 12 which is suitable for the weight of the counter weights is shown in FIG.
Then, a rated load value table as shown in FIG. 4 is selected, and a limit load is obtained by referring to the rated load value table from the work radius value calculated in step S5. That is, FIG.
As shown by the broken line, the value on the vertical axis of the rated load value table corresponding to the working radius is the limit load. Then, the numerical value of “50t”, which is an example of the limit load thus obtained, is displayed on the portion 39 of the monitor 20. At the same time, the maximum working radius Rm obtained from the rated load value table
The value of ax is displayed on the portion 40 of the monitor 20 (15 m in the present embodiment).

Next, in step S7, the actual load is calculated and displayed. In the process of step S7, in step S2, a signal representing the load of the suspended load detected by the load detector 2 is processed by the CPU 11 of the arithmetic unit 3, and the detected load is displayed on the monitor 20 as a numerical value. Things. In the present embodiment, as shown in FIG.
Is displayed as a number.

Further, in step S8, calculation and display of the load factor are performed. The processing in step S8 is as follows:
This is performed by calculating the ratio of the actual load calculated in step S7 to the limit load calculated in step S6. In the present embodiment, the critical load is 50
t and the actual load is 30t, the load factor is “60%”, and the numerical value of the load factor is displayed on the portion 42 of the monitor 20. In the present embodiment, the load ratio is displayed as a numerical value. However, the ratio of the load ratio to the limit load may be displayed above the monitor 20 with a bar graph or the like.

Next, in step S9, it is determined whether or not an overload has occurred. If it is not determined in step S9 that the overload has occurred, the process returns to step S1, and the processes in steps S1 to S9 are repeated. On the other hand, if it is determined in step S9 that the vehicle is overloaded, the CPU 11 sends a signal to the control device 10, and the control device 10 stops the supply of pressure oil to the actuator for driving the crane. Output a signal, which stops the operation of the crane. In this state, only the boom lowering and the winding of the rope are prohibited, and the operation of raising the boom and lowering the rope is enabled.

The display on the monitor 20 may take various forms other than that shown in FIG. For example, when the counter weight is 20 t, the numerical value and the magnitude of the weight of the counter weight are displayed on the portion 34 of the monitor 20 as shown in FIG. Also, set the counter weight to 30
t, when there is an auxiliary jib and both the main winding drum and the auxiliary drum are used as the drum, the numerical value and size of the counterweight are displayed on the portion 34 of the monitor 20 as shown in FIG. , A silhouette image of the auxiliary jib is displayed, and furthermore, a character of “main” indicating that the drum is the main winding drum and a character of “E” (equipped with the auxiliary winding) indicating that the drum is the auxiliary winding drum are displayed in the portion 33. . When no jib and a common boom are used, as shown in FIG.
Is displayed, and nothing is displayed in the portion 43. On the other hand, when there is no jib and the boom is an angle boom, the character “angle” is displayed on the portion 32 of the monitor 20 and nothing is displayed on the portion 43 as shown in FIG. When there is no jib, the boom is standard, and the drum is the third drum, a character "3" indicating that the drum is the third drum is displayed in the portion 33 as shown in FIG. Further, when the auxiliary jib is used, the boom is used as a standard, and both the third drum and the auxiliary winding drum are used, as shown in FIG. 13, the portion 33 of the monitor 20 has the third drum. The character “3” indicating the effect and the character “Supplement” indicating the auxiliary drum are displayed in the portion 33,
In the part 43, a silhouette image of the auxiliary jib is displayed. 10 to 13, the counter weight is 2
0t, the detailed display of the counter weight is omitted in FIGS.

As described above, in the crane specification display device according to the present invention, the crane specifications input on the operation display section 4 are displayed on the monitor 20 together with the crane silhouette image as numerical values and character information.
The operator can recognize the specifications of the crane at a glance of the monitor 20. Also, when the operator is changed on the way, the changed operator is not monitored by the monitor 20.
It is possible to grasp the specifications of the crane simply by looking at the image displayed on the screen. Also, along with the crane specifications,
Since the boom angle and the actual load of the suspended load are detected and the work radius, the limit work radius, the limit load, and the load factor are displayed, the operator can easily recognize the crane's work state.

The mode of display on the monitor 20 is not limited to the above-described embodiment, and varies depending on the type of crane used. Therefore, the silhouette image of the crane displayed on the monitor 20, Numerical values such as the working radius are variously changed.

In the above-described embodiment, the operator selects the traveling body on the work state selection screen shown in FIG.
Although the specifications of each of the boom, jib, drum, and counterweight are input, the specifications may be input interactively. Hereinafter, an embodiment in which specifications are input in an interactive manner will be described. 15 is a flowchart showing details of input of specifications, FIG. 16 is a table showing a list of crane specifications, FIG. 17 is a table showing crane configuration information stored in ROM 12, and FIG. 18 is a table showing crane specifications in FIG. FIG. 19 is a diagram showing an option name table based on the crane specifications in FIG. 16, FIG. 20 is a diagram showing a specification input screen, and FIG.
FIG. 3 is a diagram showing information stored in the storage device. Since the hardware configuration is the same as that shown in FIGS. 1 and 2 above, detailed description will be omitted. However, in the present embodiment, as shown in FIG. Each stores a work radius table, a limit load table, and the like corresponding to the specifications of the crane input from the operation display unit 4. Further, the embodiment in which the specification is input in the interactive format and the embodiment in which the specification is input on the work state selection screen shown in FIG. 5 have different options and types of specifications.

Here, as shown in the item name table of FIG. 18, the options of the specification to be set are the running body, the boom, the jib, the offset, the hanger, the counterweight, and the number of windings. As shown in the option name table, options of various specifications are set for each item.

That is, the specifications of the crane are set as shown in FIG. 16, and the traveling body is on the crawler and the barge, and the boom is on the standard (ST).
D) and tower without jib, with auxiliary jib and jib, but with offset 10 °, 15 °
And 30 °, standard (STD), reduction and addition for the counterweight, and 1 and 2 windings can be selected for the number of windings. Then, as shown in FIG. 17, the configuration information is coded and aligned. That is, the crawler is 1 for the traveling body,
On the barge is indicated by 2, the boom is indicated by 1 for STD, the tower is indicated by 2, the jib is indicated by 1 for none, 2 for auxiliary jib, 3 for jib, and 1 for offset.
0 ° is indicated by 1, 15 ° is indicated by 2, 30 ° is indicated by 3, hooks are indicated by 1 and riff mags are indicated by 2, STD is 1 for counterweight, reduction is 2 and addition is 3 The number of windings is indicated by 1 for one volume and 2 for 2 volumes. The information corresponding to the combination of these specifications is stored in ROM
They are stored in a memory area having twelve head addresses 101, a memory area having a head address 201 to a memory area having a head address 1301. In addition, each head address indicates a flag indicating whether the information stored in the memory area is valid or invalid.

Here, there are a plurality of types of components that make up the crane, and the combinations thereof increase as the number of components increases. However, the crane does not require so many combinations depending on the work contents of the user. Therefore, by setting a flag indicating validity / invalidity in advance in accordance with the work content of the user, there is less room for selection, and specifications can be easily input. That is, by setting the information stored at the desired address to be invalid, the specification stored at that address is not displayed on the operation display unit 4 and cannot be selected. Can be selected. Therefore, it is possible to more efficiently input the specification while preventing erroneous input.

When the input of the specifications is started, first, in step S11 of FIG. 15, the screen of the operation display unit 4 is initialized, and in step S12, the display processing of the specification to be displayed first is performed. This sets the item name to 1 (traveling body) and creates an array of choices (on crawlers and barges) for item name 1. Then, the option of item name 1 is displayed on the operation display unit 4. At this time, of the displayed options, the option to which the cursor is moving is set as a temporary option, and in step S13, the temporary option is displayed in reverse and blinking.

Here, as shown in FIG. 20A, the traveling body has options on the crawler and the barge, but when the cursor is moved to the crawler and the crawler is a temporary option, the item name 2 Boom options exist.
On the other hand, if the cursor is moved to the right and the barge is set as a temporary option, there is no option after the boom. Therefore,
In step S14, it is determined whether or not an option of the next item exists.
Displays the option of the next item name. For example,
As shown in FIG. 20A, the next item name of the traveling object, the boom, and the STD and the tower, which are options of the boom, are displayed. On the other hand, if there is no option of the next item name and step S14 is denied, the selected item is determined in step S19, and the process ends. For example, FIG.
When the cursor is moved to the right in the display of 0 (a) and the barge is set as a temporary option, there is no option after the boom, and as shown in FIG. Is not displayed and the process is terminated. At this time, “◎” is displayed on the operation display unit 4 as a decision item indicating that the decision is made.

Next, in step S16, it is determined whether or not the option of the previous item name has been determined. If the option has been determined, the determined option is displayed in reverse in step S17, and the next item is displayed in step S18. Move to processing of name. Then, returning to step S13,
Until step S14 is denied, the processing of steps S13 to S18 is repeated.

As shown in FIG. 20 (b), when the traveling body is determined as a crawler, a boom option is displayed, and the next item name is displayed according to the provisional option to which the cursor has moved in the boom option. . If the boom STD is temporarily selected, since the next jib option exists as shown in FIGS. 16 and 17, the jib item names and options are displayed as shown in FIG. If the selection is made, there are no options for the jib, the offset and the hanger, so that the item name and the option of the number of hoists are displayed as shown in FIG. 20 (g), and the number of hoists is selected. Then, the process ends.

When the boom is determined to be STD, the next item name is displayed according to the provisional option to which the cursor has moved in the option of the jib. That is, if the jib is temporarily selected without a jib, there is no next offset option, but since there is a hanger option, the item name and the option of the hanger are displayed as shown in FIG. You. On the other hand, if the jib is temporarily selected as the auxiliary jib, the next offset, hanger,
Since there is no choice of counter weight and number of windings,
The decision is displayed as shown in FIG. 20 (h), and the process is terminated by confirming this selection in step S19.

When the jib is decided without the jib, the next item name is displayed according to the provisional option to which the cursor is moved in the option of the hanging tool. That is, if the hook of the hanger is temporarily selected, the next counterweight option is present, so that the item name and option of the counterweight are displayed as shown in FIG. On the other hand, even if the lifting gear of the hanging tool is temporarily selected, since the next counterweight option exists, the item name and option of the counterweight are displayed as shown in FIG. 20 (i).

When the hanging tool is fixed to the hook, the next item name is displayed in accordance with the provisional option to which the cursor is moved in the option of the counterweight, but there is an option of the next winding number of the counterweight. Not shown in FIG.
As shown in FIG. 20 (e) or FIG. 20 (j), the next item name is not displayed, and the process is terminated by confirming the specification with the desired counterweight option.

In FIG. 20 (b), when "with jib" is selected, the item name and option of the next offset are displayed, and when the option of offset is selected, the next hanging tool and counter are displayed. Since there are no options for the weight and the number of windings, the process ends.

For example, in FIG. 20 (e), when the counter weight option standard is selected, the head address is set to 101. In FIG. 20 (j), when the counter weight option reduction is selected, the head address is set to 101. 102 is set. Therefore, in actual work, the head address 101 or 1 set in this manner is set.
02, the specification data area of the ROM 12 is specified, and various calculations for display on the monitor screen and various calculations for preventing overload are performed based on the rated load table stored in the specified data area. Will be According to the specification selected and determined in this way, the above-described FIGS.
In the work display selection screen as shown in FIG. 13, the selected specification and work state are displayed.

In the present embodiment, by inputting specifications in an interactive manner as described above, the burden on the operator when inputting specifications can be reduced. In addition, when there is no option of the next item, the next item name and option are not displayed, so that it is possible to prevent the specification from being erroneously input. Further, by invalidating the address to be used in accordance with the work state of the user, the number of specifications to be selected can be reduced, thereby also reducing the burden on the operator when inputting the specifications. Note that the address invalidation can be input at the time of factory shipment or at a service factory or the like.

In the correspondence between the above-described embodiment and the claims, the operation display unit 4 is an input unit and a display unit, the angle detector 1 is a boom angle detection unit, the load detector 2 is a suspended load detection unit, The operation unit 3 and the CPU 11 constitute a working radius computing unit, a limit working radius computing unit, a limit load computing unit, and a load ratio detecting unit, and the ROM 12 constitutes a storage unit.

[0053]

As described above in detail, according to the crane specification display device of the present invention, the crane specification is displayed on the display means together with the silhouette and character information, so that the operator can display the display means. At first glance,
The specifications of the crane can be recognized. Further, even when the operator is changed on the way, the changed operator can grasp the specifications of the crane only by looking at the image displayed on the display means. In addition to the crane specifications, the boom angle and the actual load of the suspended load are detected, and the work radius, the limit work radius, the limit load, and the load factor are displayed, so that the operator can easily specify the crane specifications and work conditions. Can be recognized.

Further, by inputting the specifications in an interactive manner, the input of the specifications can be performed easily, thereby reducing the burden on the operator. Furthermore, by prohibiting the display of input information on specifications obtained in advance according to the work state of the user, the number of specifications to be selected can be reduced, thereby reducing the burden on the operator when inputting specifications. can do. Furthermore, when the specification of one crane is composed of a plurality of item values, and the item value is composed of a plurality of option data, when the option data in one item value is selected, the item corresponding to the option data is selected. Displaying the values makes it easier to input the specifications of the crane, thereby further reducing the burden on the operator when inputting the specifications.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a configuration of an example of a crane overload prevention device using a specification display device according to the present invention.

FIG. 2 is a block diagram illustrating a detailed configuration of a calculation unit.

FIG. 3 is an external plan view showing a detailed configuration of an operation display unit.

FIG. 4 is a flowchart for explaining processing performed by a calculation unit;

FIG. 5 is a diagram showing an image displayed on a monitor of the operation display unit.

FIG. 6 is a diagram showing an image displayed on a monitor of the operation display unit.

FIG. 7 is a diagram showing an image displayed on a monitor (part 1).

FIG. 8 is a view showing an image displayed on a monitor (part 2).

FIG. 9 is a diagram showing an image displayed on a monitor (part 3).

FIG. 10 is a view showing an image displayed on a monitor (part 4).

FIG. 11 is a view showing an image displayed on a monitor (part 5).

FIG. 12 is a view showing an image displayed on a monitor (part 6).

FIG. 13 is a view showing an image displayed on a monitor (part 7).

FIG. 14 is a diagram showing a rated load value table;

FIG. 15 is a flowchart showing details of specification input.

FIG. 16 is a table showing crane specifications.

FIG. 17 is a diagram showing an item name table based on the specifications of the crane in FIG. 16;

18 is a diagram showing an item name table based on the specifications of the crane in FIG.

FIG. 19 is a diagram showing an option name table based on the specifications of the crane in FIG. 16;

FIG. 20 is a diagram showing a specification input screen.

FIG. 21 is a diagram showing information stored in a ROM.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Angle detector 2 Load detector 3 Operation part 4 Operation display part 10 Control device 11 CPU 12 ROM 20 Monitor

Continuation of the front page (56) References JP-A-8-11180 (JP, A) JP-A-5-146943 (JP, A) International Publication 90/7465 (WO, A1) (58) Fields investigated (Int. Cl. ⁷ , DB name) B66C 23/90

Claims (5)

(57) [Claims] 1. An undercarriage and a swingable pivot on the undercarriage
Upper revolving superstructure attached to the upper revolving superstructure
After the boom mounted to be able to raise and lower and the upper rotating body
Counter weight attached to the section and the boom
Hoisting and lowering the suspended suspension rope
Having a drum for vertically moving a suspended load
In the specification display device of Input means for interactively inputting the specifications of the crane; Input crane specifications interactively by the input means
Screen for displaying input information for
With crane silhouette statues as numerical and textual information
Display means for switching and displaying a screen to be displayed together; Multiple combinations determined by the combination of each component of the crane
Cranes with invalid selection
Is a prohibition step for prohibiting display of input information on the display means.
Crane specification display device characterized by having steps
Place. 2. The method according to claim 1, wherein the specification is the weight of the counterweight,
Including boom type and drum type
The crane specification display device according to claim 1. 3. The method according to claim 2, wherein the display unit is configured to display the limit load and / or
Alternatively, it may be a means for further displaying the limit working radius.
3. The crane specification according to claim 1, wherein
Display device. 4. The specification of one crane is obtained from a plurality of item values.
Each item value consists of multiple choice data, and one item
When the option data in the item value is provisionally selected,
Select only if there is an item corresponding to the option data
Display items corresponding to the limb data.
The crane specification display device according to any one of claims 1 to 3.
Place. 5. A boom angle for detecting an angle of the boom.
Detecting means; Hanging load detecting means for detecting the load of the suspended load, Working radius of the boom based on the input specifications
A working radius calculating means for calculating, Calculate the limit working radius based on the input specifications
Limit working radius calculating means, The limit for calculating the limit lifting load based on the input specifications
Field suspension load calculating means, A load that is a ratio of the load of the suspended load to the limit suspended load.
Load factor detecting means for detecting the rate, The display means, in addition to the specification, the boom angle,
The load of the suspended load, the working radius and / or the load
5. A means for displaying a rate.
The crane specification display device according to any one of the above.