JP2937845B2 - Crane work mode setting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a working mode setting device for a crane, and more particularly to a working mode setting device for a crane in which various attachments can be selected and equipped.

[0002]

2. Description of the Related Art A mobile crane can be equipped with a fixed jib, a luffing jib, etc. in addition to a normal boom. It is possible. Therefore, the operator sets the work mode and mounts various attachments based on the set work mode to assemble the machine.

However, the crane can be operated even when the actually assembled machine is different from the set specifications. At this time, if the operator operates the machine in the operation mode recognized by the operator, the crane malfunctions. In addition, since the work safety device does not operate correctly, there is a possibility that a crane failure or an accident may occur.

[0004] Therefore, it is determined whether or not the operation mode of the crane set by the operator matches the actually installed machine specifications, and the malfunction of the crane due to the operator's error is prevented to improve the safety of the operation. A technical problem to be solved arises for improvement, and an object of the present invention is to solve this problem.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been proposed to achieve the above object, and in a crane in which various attachments are selected and made available, an operator sets a work mode. A setting switch, and means for detecting the presence of various attachments mounted on the body are provided, and the setting specification of the mode setting switch and a detection signal from the detection means are sequentially collated by a work mode management device, and the detection is performed. When the signal does not match the setting specification, the collation is interrupted, an alarm is issued and the operation is disabled, and when all the detection signals match the setting specification, the operation mode is displayed by the mode indicator lamp. It is another object of the present invention to provide a work mode setting device for a crane that operates a work safety device to make it operative.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram of a working mode setting device for a crane, and includes a boom detecting unit 11, a jib detecting unit 12, a mast boom detecting unit 13, a tower top detecting unit 14, an external bogie detecting unit 15, a bogie first unit detecting unit 16, A detecting means such as a bogie No. 2 detecting means 17 is provided,
Each detection means detects the presence of each attachment mounted on the body.

For example, when the body is equipped with a boom, a detection signal B is sent from the boom detection means 11 to the work mode management device 18, and when the tower top is attached to the tip of the boom and the luffing jib is attached. The detection signals B, J, and T are sent from the boom detection unit 11, the jib detection unit 12, and the tower top detection unit 14 to the work mode management device 18, respectively.

On the other hand, when the mast boom is mounted behind the boom and the external bogie is being towed, the detection signals B, M, C are output from the boom detecting means 11, the mast boom detecting means 13, and the external bogie detecting means 15, respectively. , Are sent to the work mode management device 18. Further, the detection signal B when the external carriage is one, M, together with the C, detection signals W ₁ from the cart 1 Unit detecting means 16 is sent to the work mode management unit 18, the above when the external carriage is two Detection signals B, M,
C, together with W _1, the detection signal W ₂ is sent to the work mode management unit 18 from the carriage 2 Unit detecting means 17.

[0009] A mode setting switch 19 is connected to the work mode management device 18 so that the work mode of the crane can be determined from a table prepared in advance according to the specifications of the main body and the attachment of the machine desired by the operator. Find the mode pattern. When the set number of the corresponding pattern is input by the mode setting switch 19, the setting specification signal S is output to the work mode management device 18
And the work mode is set.

A mode indicator lamp 21 is connected to the work mode management device 18 so that a setting specification signal S of the mode setting switch 19 and detection signals (B, J... When all of them match, the operation mode is displayed by the mode indicator lamp 21 and the operation safety device 21 is operated to make the operation possible. On the other hand, when the detection signal does not match the setting specification signal S of the mode setting switch, the alarm generating device 22 is operated to make the operation impossible.

FIG. 2 shows a panel surface of the mode indicator lamp 20, on which a main body specification indicator lamp 23, an attachment indicator lamp 24, and a boom top indicator lamp 25 are provided. Mode setting switch 1 described above
9 is attached.

According to the specifications of the crane main body, the main body specification indicator light 23 turns on the lamp 23a when the body is equipped with a live mast and a high mast, and when the body is equipped with a mast boom and a high mast. Lamp 23
b lights up. Further, when one external bogie is being pulled by the body, the lamp 23c is turned on, and two external bogies are carried by the body.
When the vehicle is being towed, the lamp 23d is turned on.

On the other hand, the attachment indicating lamp 24 lights according to the specifications of the boom attachment, when the body is equipped with a boom, the lamp 24a is turned on, and when the fixed jib is attached to the end of the boom, the lamp 24b is turned on. Light. When the luffing jib is attached to the tip of the boom, the lamp 24c is turned on.

Further, depending on the shape of the attachment mounted on the boom top, the lamp 25a is turned on for a heavy load boom top, and the lamp 25b is turned on for a roughing tower top. If the boom top is for a light load, the lamp 25c is turned on.

Next, a typical operation mode in the crawler crane will be described. FIG. 3 shows an S-spec boom crane 30. The body 31 is equipped with a live mast 32 and a high mast 33 toward the rear, and a boom 34 is provided in front of the body 31. FIG. 4 shows HL
The figure shows a boom crane 35 of a specification, and a fuselage 31 is equipped with a mast boom 36 and a high mast 33 toward the rear.

FIG. 5 shows a boom crane 3 of the SL specification.
7 shows a state in which one external bogie 38 is towed to the rear of the body of the HL specification boom crane 35. FIG. 6 shows a boom crane 39 of the SSL specification.
External bogie 4 at the rear of the fuselage
0 has been added.

FIG. 7 shows a crane 41 with a luffing jib of the S specification, and the boom crane 30 of the S specification.
A luffing jib 43 is attached to the tip of the boom 34 via a tower top 42. FIG. 8 shows a crane 44 with a luffing jib of the HL specification. The luffing jib 43 is attached to the boom crane 35 of the HL specification.

A crane 45 with a luffing jib of the SL specification shown in FIG. 9 is obtained by attaching a luffing jib 43 to the boom crane 37 of the SL specification, and a crane 4 with a luffing jib of the SSL specification shown in FIG.
Numeral 6 denotes a boom crane 39 of the SSL specification with a luffing jib 43 attached thereto.

FIGS. 11 and 12 show flowcharts for setting the operation mode. As an example, the SL shown in FIG.
When assembling the crane 45 with the luffing jib of the specification, the operator finds out the set number (for example, “404”) of the crane 45 with the luffing jib of the SL specification from a prepared table and inputs the set number with the mode setting switch 19. (Step 110). With this input, a setting specification signal S is sent from the mode setting switch 19 to the work mode management device 18.

Next, the work mode management device 18 determines whether or not the detection signal B has been input from the boom detection means 11 (step 120). Proceed to step 130.
On the other hand, when the boom 34 is not mounted, the setting is different from the setting specification signal S, and the process proceeds to step 999 to activate the alarm generating device 22 to make the crane inoperable.

Thereafter, in the work mode management device 18, the setting specification signal S of the mode setting switch 19 and the detection signals from the respective detecting means are sequentially collated, and the setting specification signal S matches the detection signal. If so, go to the next step. That is, whether there is a jib according to the detection signal J from the jib detecting means 12 (step 130), whether there is a tower top according to the detection signal T from the tower top detecting means 14 (step 140), or whether the mast boom detecting means 13 detects Whether there is a mast boom by the signal M (step 15
0), whether there is a trolley according to the detection signal C from the external trolley detection means 15 (step 160),
Truck or one by the detection signal W ₁ from 6 (Step 1
70) are sequentially collated.

[0022] Thus, the detection signal B with respect to configuration specification signal S, J, M, C, when W ₁ match all, actual machine equipped of the crane, the luffing jib of SL specifications set by the operator It is determined that they match the attached crane 45 (step 171).

Next, as another example, the HL shown in FIG.
When assembling the boom crane 35 of the specification, the operator finds out the set number (for example, “301”) of the boom crane 35 of the HL specification from a table prepared in advance, and inputs the set number from the mode setting switch 19 (step). 110). Here, when the boom 34 is equipped as in the case of the setting specification signal S, the process proceeds from step 120 to 130, and when it is confirmed that there is no jib, the process proceeds to step 250.

Further, if there is a mast boom as in the case of the setting specification signal S, the process proceeds from step 250 to step 260, and if it is confirmed that there is no bogie, the actual mechanical equipment of the crane is changed to the HL boom crane set by the operator. It is determined that they match 35 (step 261).

As described above, after it is determined that the mechanical specifications of the crane have been assembled in conformity with the work mode set by the operator using the mode setting switch 19, the process proceeds to step 888, where the mechanical specifications of the crane are set in advance. Check whether the specification is one of a plurality of specified specifications.

Then, the mode display lamp 20 is turned on to display the operation mode of the crane (step 88).
9) Operate the work safety device 21 to make the crane operable (step 890). For example, the main body specification indicator light 23 provided on the panel surface of the mode indicator light 20
When the lamp 23c and the lamp 24c of the attachment indicator light 24 are turned on, the operator can confirm that the crane 45 with a luffing jib of the SL specification is used,
When the lamp 23b of the main body specification display lamp 23 and the lamp 24a of the attachment display lamp 24 are turned on, the operator can confirm that the boom crane 35 is of the HL specification.

The present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified ones.

[0028]

As described above, according to the present invention, the work mode set by the operator with the mode setting switch is
The work mode management device sequentially checks the machine specifications actually mounted, and when the set specifications match the machine specifications, the work safety device is operated to enable the crane to operate. If the set specifications do not match the machine specifications, an alarm is issued to disable crane operation.

Thus, it is possible to determine whether or not the operation mode is the operation mode set by the operator, to prevent a malfunction of the crane due to an operator error, and to contribute to an improvement in operation safety and operability.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention and is a block diagram of a crane operation mode setting device.

FIG. 2 is a diagram showing a panel surface of a mode indicator lamp.

FIG. 3 is a side view showing an S-spec boom crane.

FIG. 4 is a side view showing an HL specification boom crane.

FIG. 5 is a side view showing an SL specification boom crane.

FIG. 6 is a side view showing a boom crane of SSL specification.

FIG. 7 is a side view showing a crane with a roughing jib of S specification.

FIG. 8 is a side view showing a crane with a luffing jib of the HL specification.

FIG. 9 is a side view showing a crane with a luffing jib of the SL specification.

FIG. 10 is a side view showing a crane with a luffing jib of the SSL specification.

FIG. 11 is a flowchart of a work mode setting, part 1;

FIG. 12 is a work mode setting flowchart, part 2;

[Explanation of symbols]

11 Boom detecting means 12 Jib detecting means 13 Mast boom detecting means 14 Tower top detecting means 15 External bogie detecting means 16 Bogie No. 1 detecting means 17 Bogie No. 2 detecting means 18 Work mode management device 19 Mode setting switch 20 Mode indicator light 21 Work Safety device 22 Alarm generation device B Boom detection signal J Jib detection signal M Mast boom detection signal T Tower top detection signal C External bogie detection signal W ₁ bogie 1st car detection signal W ₂ bogie 2nd car detection signal S Setting specification signal

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B66C 13/00-15/06 B66C 23/70

Claims (1)

(57) [Claims] 1. A crane in which various attachments are selected and made available, a mode setting switch for setting an operation mode by an operator, and means for detecting the presence of various attachments provided on the body are provided. The setting specification of the mode setting switch and the detection signal from the detecting means are sequentially collated by the work mode management device. If the detection signal does not match the setting specification, the collation is interrupted, an alarm is issued, and the operation is performed. Crane operation, wherein when the detection signals are all in agreement with the set specifications, the operation mode is displayed by a mode indicator lamp and the operation safety device is operated to enable the operation. Mode setting device.