JPH09263400A - Controller for forklift - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a forklift be operated only within the maximum speed or under the maximum lift height at a place by arranging an information transmitting means at every place where the maximum speed or the maximum lift height is different and by transmitting the information to the controller of the forklift with an information receiving means when the forklift passes near the place. SOLUTION: An information transmitting means 12 is mounted on a vertical inner wall 11 of the entry 10 of a warehouse 9. The contents of the information of the information transmitting means 12 are the maximum speed and the maximum lift height. When a reach-type fork lift having a bar code reading means as an information receiving means 8 comes near the entry 10 of the warehouse 9, the bar code reading means reads information from the bar code of the information transmitting means 12 mounted on a vertical inner wall 11 of the entry 10. A changing means judges if the maximum speed must be changed or not and, if necessary, it changes data. On the contrary, if the maximum speed need not to be changed, the changing means judges if the maximum lift height must be changed or not and, if necessary, it changes the maximum lift height data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a forklift used at a cargo handling place where the maximum traveling speed and the maximum lift are different, and the forklift itself can automatically change them without any operation by the driver. The present invention relates to a forklift control device intended to reduce the burden on the driver.

[0002]

2. Description of the Related Art Conventionally, when a forklift is used at a cargo handling place where the maximum traveling speed or the maximum lift is different, a sign is provided at the different place, and the setting change provided on the vehicle body when the driver sees the sign. I was operating the switch to change it.

[0003]

Conventionally, as described above, since the driver operates the setting change switch to change the sign provided at the cargo handling place where the maximum traveling speed and the maximum lift are different, the change is made. However, when there are many cargo handling locations where the maximum traveling speed and the maximum lifting height are different, there is a problem that the operation is troublesome and the cargo handling work efficiency decreases.

[0004]

According to the present invention, in a forklift used in a cargo handling place where the maximum traveling speed and the maximum lift are different, the maximum speed and the maximum lift are different for each place where the maximum speed and the maximum lift are different. Information transmission giving means for issuing a command signal for changing the set value is arranged, and information receiving means for receiving the command signal from the information transmission giving means and setting of the maximum speed and the maximum lift by the command signal from the information receiving means The control means for changing the value is provided in the vehicle body of the forklift to solve the above problems.

[0005]

[Function] A forklift equipped with information receiving means is provided in the vicinity of the location where the information transmission giving means for issuing a command signal for changing the set values of the maximum speed and the maximum lift is arranged for each location where the maximum speed and the maximum lift are different. When attempting to pass, the command signal from the information transmission imparting means is transmitted to the control means via the information receiving means, and the operation is performed only within the maximum speed at the location or below the maximum elevation.

[0006]

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 3. FIG. 1 shows a forklift used in the present invention.
In particular, a reach type forklift will be described as an example. 1 is a reach type forklift, 2 is a vehicle body of the reach type forklift 1, 3 is a mast standing in front of the vehicle body 2, 4
Is a fork that moves up and down along the mast 3, and 5 is a vehicle body 2.
Of the straddle arm projecting forward and formed on both left and right sides, 6 is a road wheel rotatably mounted on the straddle arm 5, 7 is a drive wheel arranged under the vehicle body 2, and 8 is provided on the vehicle body 2. It is an information receiving means.

FIG. 2 illustrates a warehouse as an example of a cargo handling place using the forklift of the present invention, which has different maximum traveling speeds and maximum lifts, and 9 is a warehouse, in which the ceiling height and passage width inside are variously different. There are other warehouses scattered around.
Reference numeral 10 is an entrance of the warehouse 9, and information transmission giving means 12 is provided on a vertical inner wall 11 of the entrance 10.
The information content of is the maximum speed and maximum lift.

Now, a bar code is used as the information transmission giving means 12, and a bar code reading means is used as the information receiving means 8. Alternatively, a signal source such as radio waves or magnetism may be used.

When the reach type forklift equipped with the bar code reading means as the information receiving means 8 approaches the entrance 10 of the warehouse 9, the bar code of the information transmitting means 12 fixed to the vertical inner wall 11 of the entrance 10 The barcode reading means reads the information (step S
1) If there is a barcode input in step S1, it is judged whether or not the maximum speed should be changed (step S2), and if it is necessary, the data is not changed (step S3) and vice versa. If it is not necessary, move to the next step and judge whether there is maximum lift data (step S
4) If the change is necessary, the maximum lift data is not changed (step S5). On the contrary, if the change is not necessary, the process proceeds to the next step to judge whether the rack data is changed (step S6). If the change is necessary, the rack data is not changed (step S7), and conversely, if the change is not necessary, the process is completed.

[0010]

INDUSTRIAL APPLICABILITY As described above, the present invention is a forklift used in a cargo handling place where the maximum traveling speed and the maximum lift are different, and the maximum speed and the maximum lift are different for each place where the maximum speed and the maximum lift are different. Of information transmission giving means for issuing a command signal for changing the set value of the information receiving means for receiving the command signal from the information transmission giving means and the command signal from the information receiving means Since the control means for changing the set value is provided on the vehicle body of the forklift, it is possible to automatically change them by the forklift itself without having to operate the driver one by one, and it is possible to reduce the burden on the driver, Moreover, the efficiency of cargo handling work was improved.

[Brief description of drawings]

FIG. 1 shows a perspective view of a forklift used in the present invention.

FIG. 2 shows a perspective view of a warehouse entrance used in the present invention.

FIG. 3 shows a flow chart of the present invention.

[Explanation of symbols]

 1 Reach type forklift 2 Body 3 Mast 8 Information receiving means 9 Warehouse 12 Information transmission giving means

Claims (4)

[Claims] 1. In a forklift used at a cargo handling place where the maximum traveling speed and the maximum lift are different, a command signal for changing the set value of the maximum speed and the maximum lift is set for each place where the maximum speed and the maximum lift are different. The information transmitting means for transmitting the information is arranged, and the information receiving means for receiving the command signal from the information transmitting means and the control means for changing the set values of the maximum speed and the maximum lift according to the command signal from the information receiving means are provided. Control device for forklift characterized by being provided on the body of the forklift 2. A forklift control device according to claim 1, wherein the information transmission giving means is a bar code and the information receiving means is a bar code reading means. 3. The forklift control device according to claim 1, wherein the information transmission imparting means is a magnetic signal and the information receiving means is a magnetic signal reading means. 4. A forklift control device according to claim 1, wherein the information transmission giving means is a radio signal and the information receiving means is a radio signal receiving means.