JP3181974U - Weight rank judgment device for forklift - Google Patents

Abstract

A forklift weight rank determination device that can be detachably mounted on a forklift and that can determine the weight rank of an object to be sorted.
A weighing unit comprising a weighing part that is detachably attached to each of a plurality of claws, a weighing unit that measures a total load applied to the claws, and weight rank determination reference data for determining a weight rank. Of the measured value in the weighing unit 2 when the sorting object 26 in the container 25 is taken out from a state where the sorting object 26 is lifted by the claw 17 while the plurality of sorting objects 26 are housed in the container 25. Based on the change amount and the weight rank determination reference data stored in the memory unit, an arithmetic processing unit that determines the weight rank of the selection object 26 taken out from the container 25, and the weight obtained in the arithmetic processing unit And a weight rank determination device for forklifts having a display unit for displaying a rank determination result.
[Selection] Figure 2

Description

  The present invention relates to a weight rank determination device for a forklift that can be detachably attached to a forklift and that can determine the weight rank of an object to be sorted.

In general, harvested agricultural products are sorted based on weight and shipped to the market by packing together for each grade.
In this case, the producer has to select individual agricultural products in advance based on their weights before shipping the agricultural products.
A conventionally known weight rank sorting device, for example, is placed on a sorting device capable of weighing a plurality of sorting objects for each container, and each time the operator picks up the sorting objects one by one from the container, the weight rank of the sorting object is changed. The operator is notified by means of character display, voice output, etc., and the sorting object to be sorted is relatively small, and the user can lift the container containing a plurality of sorting objects. If possible, the sorting work could be done without any trouble.
However, when individual sorting objects are large and heavy, such as radishes, pumpkins, and Chinese cabbages, it is not easy for an operator to lift a container containing a plurality of sorting objects. Such a conventionally known weight rank sorter cannot be used for sorting.

In this case, the operator picks up the objects to be sorted one by one and weighs them with a scale, or uses a large sorter equipped with equipment for automatically transporting the objects to be sorted. Instead, methods such as sorting were used.
In the former case, there is a problem that it is difficult to improve the efficiency of the sorting operation. In the latter case, it is difficult to secure the installation place because the sorting device is large, and the sorting device itself is expensive. Farmers of scale had a problem that it was difficult to introduce a sorting device.
For this reason, when each individual object to be sorted is large and heavy, and it is difficult to lift a plurality of objects by hand, it is possible to efficiently sort the objects to be sorted, and the apparatus itself is small. Development of a sorting means (sorting device) is desired.
Prior art documents having the same problem as the present invention have not been found at present, but the following are known as related art documents in related fields.

Patent Document 1 has the name “weight rank sorter”. Weights to be weighed are placed in a large number of containers in a container with a variation in weight per piece, taken out one by one and sorted by weight rank. A device related to a rank sorter is disclosed.
The weight rank sorter disclosed in Patent Literature 1 includes a quantity detector, a key input unit having a rank designation key, a rank confirmation key, and the like, and a display device that displays the weight of the object to be weighed and the sorted weight rank. A voice output device that outputs the rank as a voice; a calculation device that compares and outputs the weight signal detected in weight and a preset weight rank range; a set weight rank range and a detected target In a subtractive weighing machine that has a storage device that stores the weight rank of the weighing object, rank indication and / or rank sound is output by detecting the weight of the object to be weighed, and once the display is completed, the rank is reconfirmed. The rank display and / or rank voice can be confirmed by calling the rank temporarily stored by pressing the rank confirmation key when required. It is intended to.
According to the device disclosed in Patent Document 1 as described above, when taking out an object to be weighed from a container, an operator can know the rank of the object to be weighed by text display or voice output. .
In addition, when the operator checks the weight selection rank by looking at the display, the weight changes due to touching the platform at the moment of the rank determination, etc., and the confirmation rank display is missed or the voice output of the rank is missed. Even if it is lost, there is no need to put the object in the container again and take it out again. By pressing the rank confirmation key, the confirmed rank temporarily stored can be displayed again and / or the sound can be re-output. It is possible to perform reliable weight rank selection without lowering.

Patent Document 2 discloses an invention relating to a hand pallet driving device for the purpose of easy initial driving of a hand pallet driven by human power under the name of “hand pallet driving device”.
Although the invention disclosed in Patent Document 2 is not directly related to the present invention, a hand pallet driven by human power is disclosed.
Further, although no specific document is presented here, a “hand pallet scale” that can measure the weight of the load to be transported by providing a weighing instrument on the load carrying table 21 in the hand pallet in the form as disclosed in Patent Document 2. Is also known as a known technique.
According to the invention disclosed in Patent Document 2, a heavy load can be easily lifted and transported manually.
Further, according to the “hand pallet scale” to which the invention disclosed in Patent Document 2 is applied, in addition to the same effect as that of the invention disclosed in Patent Document 2, the operator can reduce the weight of the luggage when transporting the luggage. I can know.

Patent Document 3 is named “Forklift Weight Measurement System”, which can easily measure the weight of indefinite loads in a business warehouse where the warehouse and the office are far away, and is managed in combination with a wireless RAN. A device relating to a weight measuring system for a forklift intended to improve the efficiency of the forklift is disclosed.
The weight measuring system for a forklift disclosed in Patent Document 3 is a forklift that locks a mast oak erected on a vehicle body part, and a chain wheel can be rotated on an upper part of a rod of a lift cylinder disposed on the mast. The one end of the chain that circulates around the chain wheel is attached to the lift bracket, and the other end is fixed to the moving member that moves up and down by the tension of the chain, and the above-mentioned between the moving member and the fixed member fixed to the mast A load sensor is provided on the upper surface of the moving member, a weight conversion circuit that converts a detection signal from the load sensor into weight data, a control device that wirelessly transmits the conversion signal converted by the weight conversion circuit, and the conversion signal A display for converting into visible data is provided in the vehicle body.
According to the device disclosed in Patent Document 3 as described above, the weight can be measured when the package is transported, and the weight data can be stored as electronic data.

Patent Document 4 discloses an invention relating to a fruit sorting method and its equipment under the name "fruit sorting method and equipment".
The invention disclosed in Patent Document 4 is based on the same applicant as the invention of the present application, and its configuration is such that a calculation table capable of subtraction display and a fruit container from a farm are placed on or near the weighing table. Conveyor for containers to be sent to, a discharge conveyor for transporting empty containers from above the calculation table, a display panel of the weighing table provided at a position easy for the operator near the calculation table, and a position close to the operator It is provided with a cradle for each box of all weight categories, and a full box conveyor for loading a box filled with fruits on the cradle and sending it to the next process. Each time a fruit is taken out, the weight classification code is displayed.
In the case of the invention disclosed in Patent Document 4 as described above, the worker can read the weight classification directly on the display board at the moment when the fruit is taken out from the container, and immediately put it in the corresponding box. Such labor and time can be greatly reduced.
In addition, the collection of containers for the weighing platform and workers, the discharge conveyor, and the full box conveyor have been gathered, so even if the container is too heavy to be lifted manually and the container is heavy, the fruit can be sorted out without any problem. Work can be done.

Registered Utility Model No. 3027356 JP 2000-118405 A Actual Zenpira 4-88499 gazette Japanese Patent Publication No. 3-33391

  The device disclosed in Patent Document 1 is a technique based on the premise that a container containing a plurality of sorting objects can be manually lifted and placed on a lightweight machine, and a container containing a plurality of sorting objects is a manpower. No assumption is made about the case where it cannot be lifted by the. For this reason, there is no disclosure or suggestion about the necessity of determining the weight rank of a selection object by lifting a plurality of selection objects regardless of human hands.

The hand pallet disclosed in Patent Document 2 is for lifting and transporting a load that cannot be lifted manually, and can lift a container containing a plurality of sorting objects. There is no assumption about the need to select the weight rank. Accordingly, there is no disclosure or suggestion or reference regarding the configuration for selecting the weight rank of each individual target object.
In the case of a “hand pallet scale” to which the invention disclosed in Patent Document 2 is applied, and in the case of the device disclosed in Patent Document 3, a container containing a plurality of sorting objects is lifted and its weight is increased. Although it can be measured, there is no need for disclosure, suggestion, or mention about the necessity of selecting the weight rank of each object to be selected.
Furthermore, even if the “hand pallet scale” to which the invention disclosed in Patent Literature 2 is applied and the idea disclosed in Patent Literature 3 has a function of sorting the weight rank of each sorting object, it is used. The customer side had to purchase such a high-performance transport device. In this case, there was a problem that small and medium-sized farmers have a large economic burden.

According to the invention disclosed in Patent Document 4, even when a container containing a plurality of sorting objects cannot be lifted manually, a conveyor for transportation is arranged around the worker, so that Although it is possible to perform a sorting operation, it is necessary to secure a wide space for installing the apparatus because the apparatus itself is large. For this reason, it has been difficult for small and medium-sized farmers to introduce fruit sorting equipment as disclosed in Patent Document 4.
Furthermore, in the case of the invention disclosed in Patent Document 4, the problems related to the transportation and movement of containers containing a plurality of sorting objects have already been solved by providing a conveyor. Regardless, the necessity of lifting and determining the weight rank of the selection object is not assumed.

  The present invention has been made in response to such a conventional situation, and the purpose of the present invention is to select a plurality or a single or a lump of objects that can be detachably mounted on a forklift claw and cannot be lifted manually. Forklift weight that can measure the total weight of the lifted items when lifting an object with a forklift, and can also determine the weight rank of individual or a lump of objects to be sorted based on the measured value It is to provide a rank determination device.

In order to achieve the above object, a weight rank determination device for a forklift according to claim 1 is composed of a weighing part that is detachably attached to each of a plurality of claws arranged in a fork shape. A weighing unit for measuring the total load applied to the claw when the plurality of contained objects are lifted together with the claw, and a memory unit for storing weight rank determination reference data for determining the weight rank; The amount of change in the measured value in the weighing unit when the sorting object is taken out from the state where a plurality of sorting objects are held in the container and lifted with a claw, and the weight rank stored in the memory unit An arithmetic processing unit for determining the weight rank of the selection object taken out from the container based on the determination reference data, and a display for displaying the weight rank determination result obtained in the arithmetic processing unit It is characterized in that it has and.
In the idea of the above configuration, the weighing parts constituting the weighing unit are detachably provided on each of the plurality of claws and have an action of measuring a load acting on each of the claws. And the measuring part which consists of such a measuring part adds up the load which acts on each claw, and measures the total weight of a plurality of sorting objects and a container lifted by a plurality of claws. Have.
The memory unit also has an effect of storing weight rank determination reference data for determining the weight rank. In addition, the arithmetic processing unit changes the measurement value in the measuring unit when the sorting object in the container is taken out from a state where the sorting object is lifted by a plurality of claws while the plurality of sorting objects are housed in the container. And based on the weight rank determination reference data stored in the memory unit, the weight rank of the selection object taken out from the container is determined. And a display part has the effect | action of displaying the weight rank determination result obtained in the arithmetic processing part so that visual confirmation is possible.

The weight rank determination device for forklifts according to claim 2 is the weight rank determination device for forklifts according to claim 1, wherein the weight rank determination device for forklifts includes an audio output unit, and the memory unit includes: In addition to the weight rank determination reference data, voice output data for outputting the weight rank determination result as sound is stored.
In addition to the same operation as that of the first aspect of the invention, the device having the above-described configuration has an operation of transmitting the weight rank determination result to the worker by providing a sound output unit and sound output data.

The weight rank determination device for forklifts according to claim 3 is the weight rank determination device for forklifts according to claim 1 or 2, wherein the weighing parts are placed on the claws and A fixing structure for fixing the measuring part in the vicinity of the bent portion is provided.
In addition to the same operation as the device described in claim 1 or 2, the device having the above configuration has an operation of detachably fixing the measuring part in the vicinity of the bent portion of the claw by providing a fixing structure. Thereby, when the claw of a forklift is inclined, it has the effect | action of preventing that a measurement part falls from a claw.

The weight rank determination device for forklifts according to claim 4 is the weight rank determination device for forklifts according to any one of claims 1 to 3, wherein the plurality of claws are provided in the container. Instead of a plurality of contained objects to be sorted, a single or a lump of sorting objects are lifted, and the arithmetic processing unit measures the measurement values measured by the weighing unit when the single or a lump of sorting objects are lifted, and Based on the weight rank determination reference data stored in the memory unit, the weight rank of a single or a lump of selection objects is determined.
The invention of the above configuration is the invention described in each of claims 1 to 3, wherein the selection object to be lifted by a plurality of claws is not plural but is single or lifted by plural claws. A transport apparatus with a weight rank determination function in the case of handling an aggregate of a lump of articles to be handled as one sorting object is considered as a device different from the device described in claims 1 to 3, and a plurality of The present invention is the same as that described in each of claims 1 to 3 except that the number of objects to be picked up by the claws is different and the procedure for determining the weight rank in the arithmetic processing unit is different.
For this reason, the operation of the invention according to claim 4 is that the sorting object to be lifted by a plurality of claws is a single or a group of articles, and the weight rank of the sorting object in the arithmetic processing unit. The determination result is described in each of claims 1 to 3, except that the determination result is not based on the change amount of the measurement value measured in the measurement unit but based on the measurement value itself measured in the measurement unit. It is the same as the operation of the device.

According to the first aspect of the present invention, when a container body that contains a plurality of sorting objects that are too heavy to be lifted manually is lifted by a forklift, the total weight of the plurality of sorting objects and the container Can be weighed using a weighing unit made up of weighing parts attached to each claw.
Furthermore, in the device according to claim 1, when one of the sorting objects in the container is taken out from the plurality of sorting objects lifted by the plurality of claws by including the arithmetic processing unit and the memory unit, Based on the amount of change in the measured value in the weighing unit, the weight rank of the selected sorting object can be determined. In addition, by providing the display unit, the operator can check and know the weight rank determination result on the spot.
Therefore, according to the invention described in claim 1, even when the weight of each sorting object is large, the container containing a plurality of sorting objects is lifted by the forklift, and the total weight is provided on the forklift claw. It can be obtained by weighing with a weighing unit composed of each weighing part. Then, when the sorting object is picked up from the state where the plurality of sorting objects are lifted by the forklift, the weight of the sorting object is obtained by the subtraction method, and the weight data of the obtained sorting object is used based on the obtained weight data. It is possible to determine the weight rank of the selection object and notify the operator.
In this case, the individual sorting objects are manually moved to a known weighing machine or weight rank sorter and placed, and compared with the case where the weight rank of each sorting object is judged. The work efficiency of the work for determining the weight rank of the object can be dramatically improved. In other words, according to the first aspect of the invention, it is possible to omit the work of manually transporting individual sorting objects to a conventionally known weighing machine or weight rank sorting machine, so that the time required for the sorting work can be shortened. Can do. Further, in this case, since the chance of the operator touching the sorting object can be surely reduced, the risk of the sorting object being damaged or soiled can be reduced. In particular, when the sorting object is easily damaged by human touch such as agricultural products or marine products, it is possible to suitably suppress the deterioration of the quality of the sorting object.
In addition, since the device described in claim 1 is a device that is detachably attached to the forklift as a separate body, when the device described in claim 1 is removed from the forklift, the forklift is used as a conventionally known baggage transport device. Can be used. That is, according to the device of the first aspect, the forklift can be used as the weight rank determination device only when necessary. Therefore, according to the device of the first aspect, the versatility of the forklift can be enhanced.

  The invention described in claim 2 has the same effect as that of the invention described in claim 1, and when the operator picks up one sorting object from a plurality of sorting objects lifted by a plurality of claws. The weight rank determination result of the selection object can be notified by voice. In this case, since the operator can know the weight rank determination result of the selection target without looking at the display unit, the selection operation of the selection target can be performed more efficiently.

  In addition to the same effect as that of the invention described in claim 1 or 2, the invention described in claim 3 includes a fixing structure, so that each measuring part can be detachably fixed to the forklift. In this case, when the claw of the forklift is tilted, the measuring part can be prevented from sliding off the claw. Therefore, the operability of the forklift claw with the weighing parts attached can be improved.

According to the invention described in claim 4, in addition to the same effect as the invention described in each of claims 1 to 3, the object to be selected is a single article that is so heavy that it cannot be lifted manually. Or if the object to be sorted is a collection of articles that are so heavy that they cannot be lifted by hand, lift the object to be sorted regardless of hand, measure its weight, and The weight rank of the object can be determined.
In addition, in the invention of claim 4, when citing the invention of claims 2 and 3, in addition to the effects described above, the effect of combining the effects of the invention described in claims 2 and 3 Have

It is a conceptual diagram of the weight rank determination apparatus for forklift trucks concerning an embodiment of the invention. It is a side view which shows the mounting state of the weight rank determination apparatus for forklifts concerning embodiment of this invention. It is a fragmentary perspective view which shows the mounting state of the measurement part of the weight rank determination apparatus for forklifts concerning embodiment of this invention. It is a system configuration figure of a weight rank judging device for forklifts concerning an embodiment of the invention. It is a flowchart which shows the procedure which determines the weight rank of the selection target object with the weight rank determination apparatus for forklifts concerning embodiment of this invention. It is a flowchart which shows the procedure at the time of classify | selecting the weight rank of the single or lump selection object using the weight rank determination apparatus for forklifts concerning embodiment of this invention.

  Hereinafter, a weight rank determination device for forklifts according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6.

First, an overview of a forklift weight rank determination apparatus according to the present embodiment will be described with reference to FIGS. 1 to 4.
FIG. 1 is a conceptual diagram of a forklift weight rank determination apparatus according to an embodiment of the present invention, and FIG. 2 is a side view showing a mounted state of the forklift weight rank determination apparatus according to an embodiment of the present invention.
Here, as an example of use of the weight rank determination apparatus 1 for forklifts according to the present invention, a case where the present invention is mounted on a counterbalance forklift 13 is described as an example, but weight rank determination for forklifts according to the present invention is described. The apparatus 1 can be mounted on other forklifts other than the counterbalance forklift 13. For example, the forklift weight rank determination device 1 according to the present invention can be mounted on a reach forklift, an order picking truck, a walkie forklift, or the like.
As shown in FIGS. 1 and 2, the weight rank determination device 1 for forklift according to the present invention is roughly mounted one by one on each claw 17 of the counterbalance forklift 13, and the load acting on each claw 17 is applied. Measuring part 2P for measuring and obtaining the measured value, and determining the weight rank of the object based on the measured value obtained from measuring part 2P, outputting the determination result, and further performing an input setting operation And a setting input / determination result output unit 3.
In the forklift weight rank determination apparatus 1 according to the present embodiment, an assembly of measuring parts 2P, which is a facility for measuring the total weight of articles lifted by the claws 17, is referred to as a measuring unit 2.

As shown in FIG. 2, the counterbalance forklift 13 includes a backrest 16 that holds a plurality of (usually two) claws 17 in front of the vehicle 14, and a mast 15 that guides the vertical movement of the backrest 16. It has.
Further, the vertical movement of the backrest 16 can be operated at an operation unit 18 provided in front of the driver's seat of the vehicle 14.

First, the structure of the measuring unit 2 according to the present embodiment will be described in detail with reference to FIGS.
As described above, the weighing unit 2 is an aggregate of a plurality of weighing parts 2P. The weighing parts 2P are attached to all the claws 17 of the forklift (the counterbalance forklift 13 in the present embodiment) one by one.
Such a measuring part 2P has a U-shaped cross section and a load conversion for converting a load (force) into an electric signal on the upper surface of the mounting portion 2b mounted on the claw 17 while accommodating the horizontal portion of the claw 17 in the hollow portion. A measurement module 2a, for example, a built-in load cell or the like, is integrally fixed. The measuring part 2P includes a measurement data transmission unit 6 for wirelessly outputting the measurement data obtained in the measurement module 2a to the setting input / determination result output unit 3.
In the present embodiment, the case where the measurement data obtained from the measurement module 2a is wirelessly output has been described as an example. However, the measurement data obtained from the measurement module 2a may be output in a wired manner. Good. In this case, instead of the measurement data transmission unit 6, a cable connecting the measurement module 2 a and the setting input / determination result output unit 3 may be provided.

The measuring part 2P according to the present embodiment includes a fixing structure 2c for removably fixing the measuring part 2P to the claw 17 of the forklift.
The fixing structure 2c includes, for example, a pair of elongated flat plates 27a in which side surfaces 27 and 27 arranged opposite to each other in the mounting portion 2b are extended, and the end portions of the elongated flat plates 27a pass therethrough. And a nut 5 that prevents the bolt 4 from falling off at the end of the bolt 4.
FIG. 3 is a partial perspective view showing a mounted state of the weighing parts of the forklift weight rank determination apparatus according to the embodiment of the present invention. In addition, the same code | symbol is attached | subjected about the same part as what was described in FIG. 1 or FIG. 2, and the description about the structure is abbreviate | omitted.
As shown in FIG. 3, the measuring part 2 </ b> P is fixed to the claw 17 by placing the measuring part 2 </ b> P on the horizontal part of the L-shaped claw 17 locked to the backrest 16 and then mounting the measuring part 2 </ b> P. The bent portion of the claw 17 is sandwiched by the elongated flat plate body 27a extending on the side surface 27 of the 2b, and the end portion of the elongated flat plate body 27a is connected by the bolt 4 so that the mounting portion 2b is located near the bent portion of the claw 17. There is a method of locking and fixing.
In the present embodiment, the case where the weighing part 2P is fixed using the elongated flat plate 27a, the bolt 4 and the nut 5 is described as an example, but the method of fixing the weighing part 2P to the claw 17 is described. The measuring part 2P may be fixed to the claw 17 by using a wire rope or the like, or a clamping member may be provided on the mounting part 2b of the measuring part 2P. Alternatively, the horizontal part or the bent part of the claw 17 may be clamped by this clamping member to fix the measuring part 2P to the claw 17.

When the claw 17 of the counterbalance forklift 13 is inserted under the object to be lifted, the claw 17 may be inclined so that the tip of the claw 17 is lowered.
At this time, if the measuring part 2P is removed from the claw 17, the workability is significantly reduced. For this reason, the measuring part 2P needs to be firmly fixed to the claw 17.
Therefore, in the case of the forklift weight rank determination apparatus 1 according to the present embodiment, the measuring part 2P can be detachably fixed to the claw 17 by including the fixing structure 2c. Therefore, when the claw 17 of the counterbalance forklift 13 is tilted as described above, the measuring part 2P can be reliably prevented from falling off.

Further, when the forklift weight rank determination apparatus 1 according to the present embodiment is not used, the weighing part 2P can be removed from the claw 17, so that the counterbalance forklift 13 can be used as a normal forklift. .
Further, in order to facilitate carrying of the weighing part 2P when the weighing part 2P according to the present embodiment is attached to and detached from the claw 17 of the counterbalance forklift 13, for example, a handle 2d is attached to the end of the measurement module 2a. You may keep it.

Next, the setting input / determination result output unit 3 according to the present embodiment will be described in detail with reference to FIGS.
FIG. 4 is a system configuration diagram of a forklift weight rank determination apparatus according to an embodiment of the present invention. The same parts as those described in FIGS. 1 to 3 are denoted by the same reference numerals, and description of the configuration is omitted.
The setting input / determination result output unit 3 according to the present embodiment accommodates an arithmetic processing unit 19 and a memory unit 20 as shown in FIG. The result display unit 8 and the input setting unit 10 are further provided with an input setting display unit 11 as necessary. In the setting input / determination result output unit 3 according to the present embodiment, the case where the determination result display unit 8 and the input setting display unit 11 are provided separately is described as an example. However, the determination result display unit 8 And the input setting display unit 11 can be combined into one. Although not particularly illustrated, the input setting unit 10 and the input setting display unit 11 may be combined to enable input setting by a touch panel method.
Furthermore, a measurement data receiving unit 12 for taking in electronic data output from the measurement data transmitting unit 6 of the weighing part 2P into the setting input / determination result output unit 3 is provided on the side surface of the housing 7. .

In addition, when it is not necessary to directly perform input setting work such as data stored in the memory unit 20 shown in FIG. 4 in the setting input / determination result output unit 3, the input setting unit 10 and the input setting display unit 11 are displayed. It is not necessary to provide it.
In this case, for example, a storage medium can be connected to the arithmetic processing unit 19 of the setting input / determination result output unit 3, and the weight rank determination reference data 21 input and set in advance by an external personal computer or the like is attached / detached. You may comprise so that it can store in the memory part 20 via the arithmetic processing part 19 from the possible storage medium.

  And the measurement data measured in the measurement part 2P which comprises the measurement part 2 mentioned above has the structure inputted into the arithmetic processing part 19 in the setting input and determination result output part 3 by wire or wirelessly. . That is, in the case of the forklift weight rank determination apparatus 1 shown in FIGS. 1 to 4, the measurement data obtained in the weighing part 2P is input and determined via the measurement data transmission unit 6 and the measurement data reception unit 12. It is transmitted to the arithmetic processing unit 19 of the result output unit 3.

An example of a procedure for determining the weight rank of the selection object in the forklift weight rank determination apparatus 1 according to the present embodiment will be described in detail with reference to FIGS. 4 and 5.
FIG. 5 is a flowchart showing a procedure for determining the weight rank of the selection object by the forklift weight rank determination apparatus according to the embodiment of the present invention. The same parts as those described in FIGS. 1 to 4 are denoted by the same reference numerals, and description of the configuration is omitted.
As shown in FIGS. 4 and 5, in order to determine the weight rank of the selection object 26 using the forklift weight rank determination apparatus 1 according to the present embodiment, first, the forklift weight rank determination apparatus 1 is mounted. The counterbalance forklift 13 is moved to a place where the sorting object 26 is located (step S0).
Thereafter, the plurality of sorting objects 26 accommodated in the container 25 are lifted together with the container 25 by a plurality of claws 17 (see step S1, FIG. 2), and individual weighing parts 2P (the weighing unit 2). ) Is transmitted to the arithmetic processing unit 19 by radio or wire, and the arithmetic processing unit 19 integrates the measured values obtained in the individual measuring parts 2P to select the container 25. The total weight of the object 26 is obtained (step S2).
In addition, the integrated value of the measurement data obtained from the individual weighing parts 2P in step S2 is set as a reference value (zero value) for calculating the weight of the selection object 18 by the subtraction method in the arithmetic processing unit 8. (Step S3).

From this state, when one sorting object 26 is picked up from the container 25 on the claw 17 by an operator (not shown) (step S4), it is based on the measurement data in each weighing part 2P constituting the weighing unit 2. Then, the amount of decrease in weight from the reference value (zero value) is calculated in the arithmetic processing unit 8, and this decrease in weight is recognized as the weight of the selection object 26 taken up by the operator (step S5). .
On the other hand, since the memory unit 20 connected to the arithmetic processing unit 19 stores the weight rank determination reference data 21 for determining the weight rank of the selection object 26, the 1 obtained in the previous step S5. The weight data of the two selection objects 26 and the weight rank determination reference data 21 are compared in the arithmetic processing unit 19 (step S6), and the weight rank of the selection object 26 picked up by the operator in the previous step S3 is determined. (Step S7).
Then, the weight rank determination result obtained in step S7 is displayed on the determination result display unit 8 in the setting input / determination result output unit 3 using characters, symbols, phrases, or the like (step S8). By visually observing the display on the result display unit 8, it is possible to know the weight rank of the selection object 26 that is picked up from the container 25 on the claw 17 in the previous step S3.
More specifically, when the determination result display unit 8 informs the operator of the weight rank determination result of the selection object 26, the determination result display unit 8 indicates the weight rank of the selection object 26, for example, “S”. , “M”, “L”, “LL”, “non-standard” characters, symbols, phrases, etc. are displayed. At this time, the operator can know the determination result of the weight rank of the selection object 26 picked up by himself / herself by looking at the characters, symbols, phrases and the like.
And by repeating the process from step S4 to step S8 among the processes in the above-mentioned step S1 to step S8, a plurality of selection objects 26 accommodated in the container 25 lifted by the claw 17 are obtained. The weight rank can be sequentially determined.

In the following description, the process of calculating the total weight acting on all the claws 17 by integrating the measured values obtained in the individual weighing parts 2P is simply “measuring the total weight by the weighing unit 2”. I will express it.
Here, the case where the total weight measured by the weighing unit 2 in step S2 in FIG. 5 is set as a reference value and the weight of each selection object 26 is calculated by the subtraction method is described as an example. However, every time one sorting object 26 is picked up from the container 25, the weighing unit 2 measures the total weight of the articles placed on the claw 17, and the calculation processing unit 19 determines the sorting object. The weight of the sorting object 26 may be obtained by subtracting the weight after picking up one sorting object 26 from the weight before picking up one 26.
In the present embodiment, the case where the selection objects 26 are picked up one by one has been described. However, depending on the object, the picked-up objects 26 are picked up in pairs, the weight rank is determined by the pair, or they are picked up by a bucket or the like. The weight rank may be determined, or the weight rank may be determined for the entire bucket.

Here, returning to FIG. 2 again, the forklift weight rank determination apparatus 1 according to the present embodiment will be described. FIG. 2 is a diagram showing a use state of the forklift weight rank determination apparatus according to the present embodiment.
In FIG. 2, as an example showing the use state of the forklift weight rank determination apparatus 1 according to the present embodiment, a car car that is a container 25 and a large number of radishes that are sorting objects 26 are placed on the car. The state where it lifted with the nail | claw 17 with which the weight rank determination apparatus 1 for forklifts was equipped is shown.
Conventionally, after harvesting daikon from the field, wash the soil and dirt adhering to the surface with water, dry the water on the surface of the radish, select based on the weight of each, pack it to the market Shipped.
The size of the radish supplied to the market varies, but some of the larger radishes exceed 1 kg, and it is difficult to manually lift and move the container 25 containing many such heavy vegetables. .
Therefore, the radish sorting operation is performed completely automatically by using a large automatic sorting device regardless of human hands, or one worker at a time from the car in the container 25 as shown in FIG. However, it is necessary to carry the radish to a conventionally known weight rank sorting device and sort the weight rank.

In the former case, since the sorting operation does not require manpower, the work efficiency is increased. However, an expensive stationary type large-scale sorting device (see, for example, Patent Document 4) is necessary, and such a device is installed. For this reason, it is difficult for small and medium-sized farmers to introduce sorting equipment.
In the latter case, although a large-scale device is not required, the device as disclosed in Patent Document 1 cannot be used. Therefore, in order to select one radish, the weight rank from the car that is the container 25 is determined. It was necessary to carry the radish to the sorting device to sort the weight rank, and then pick up the radish from which the weight rank was sorted from the weight rank sorting device and transfer it to another container 25 or pack it in a box.
In this case, as compared with the case where the sorting operation is performed using the device disclosed in Patent Document 1, the work of picking up the radish as the sorting object 26 from the car that is the container 25 to the weight rank sorting device. It is difficult to improve the work efficiency of the sorting operation of the sorting object 26.
In view of such circumstances, as a result of diligent research, the inventors use a forklift weight rank determination device 1 that can be detachably mounted on a widely used forklift (for example, counterbalance forklift 13). Thus, the sorting object 26 is also removed from the container 25 that accommodates a large number of sorting objects 26 even for the sorting object 26 that could not be conventionally used with the apparatus disclosed in Patent Document 1. It was possible to determine the weight rank of the selection object 26 by picking up one by one.
Moreover, according to the weight rank determination apparatus 1 for forklift trucks according to the present embodiment, the opportunity for the operator to touch the selection object 26 can be surely reduced by having the effects as described above. There is also an effect that the risk of the object 26 being damaged or soiled can be reduced. In particular, when the sorting object 26 is likely to be damaged when touched by human hands, such as agricultural products and marine products, it is possible to suitably suppress the deterioration of the quality of the sorting object 26.

In addition, as shown in FIGS. 2 and 3, when the forklift weight rank determination apparatus 1 according to the present embodiment is removed from the claw 17 of the forklift (for example, the counterbalance forklift 13), the forklift is normally used as a heavy object. It can be used as a transfer device. In addition to the forklift, the forklift weight rank determination device 1 according to the present embodiment is detachably mounted on a conventionally known hand pallet (see Patent Document 2) or a table lifter (not shown). can do.
In addition, when using the weight rank determination apparatus 1 for forklifts according to the present embodiment while being mounted on a table lifter, the configuration of the mounting portion 2b of the measuring part 2P and the fixing structure 2c are changed to a configuration suitable for the table lifter. There is a need to. More specifically, in a case where the present invention is used by being mounted on a table lifter, it is desirable that a plurality of measurement modules 2a be integrally configured to be the weighing unit 2.
As described above, the forklift weight rank determination apparatus 1 according to the present embodiment is not a stationary type like the conventional technique (particularly the technique disclosed in Patent Document 4), although it is a weight rank selection apparatus. Since the forklift (for example, the counterbalance forklift 13), the hand pallet, and the table lifter are detachably mounted, the versatility of each of the above-described transport devices can be improved.

Here, another function of the forklift weight rank determination apparatus 1 according to the present embodiment will be described.
As shown in FIGS. 1 and 4, the forklift weight rank determination apparatus 1 according to the present embodiment outputs the sound output unit 9 and the memory unit 20 from the sound output unit 9 in addition to the determination result display unit 8. Audio output data 22 may be provided.
Note that the audio output data 22 indicates the weight rank of the sorting object 26, for example, characters, symbols, phrases, etc. such as “S”, “M”, “L”, “LL”, “non-standard”, and the like. This is voice data read out.
According to the weight rank determination device 1 for a forklift provided with the audio output unit 9 and the audio output data 22 as described above, the weight rank determination result can be output from the audio output unit 9, so that the operator can It is possible to know the weight rank determination result of the selection object 26 picked up by itself without looking at the determination result display unit 8.
In this case, it is possible to omit the act of the operator viewing the determination result display unit 8 in order to know the weight rank determination result of the selection object 26 during the selection operation of the selection object 26. Work can be performed more efficiently.

In addition, the forklift weight rank determination apparatus 1 according to the present embodiment, as shown in FIG. 4, outputs data for outputting the weight rank determination result obtained in the arithmetic processing unit 19 to the outside wirelessly or by wire. The unit 23 may be provided.
In this case, the weight rank determination result obtained in the arithmetic processing unit 19 may be output to the outside in real time, or the weight rank determination result data obtained in the arithmetic processing unit 19 may be temporarily stored. It is also possible to store the data in the memory unit 20 so that all or desired weight rank determination result data can be collectively output later.
In this case, together with the weight rank determination result, the weight of the selection object 26 obtained by the arithmetic processing unit 19 may be output to the outside as individual weight data.
In this case, by using the weight rank determination result output to the outside, it is possible to easily perform the shipment status and inventory management of the product (sorting object 26), the determination result confirmation operation, and the like.

Further, the forklift weight rank determination apparatus 1 according to the present embodiment is not particularly illustrated, but print output for printing out the weight rank determination results obtained in the arithmetic processing unit 19 each time or collectively. The part 24 may be provided.
In this case, since the weight rank determination result can be printed from the setting input / determination result output unit 3 each time or collectively, it is possible to save the time and effort required to create the sorting work record. .
In addition, for example, the weight rank determination result of each sorting object 26 is printed every time the weight rank determination result is output, and at that time, for example, a label paper that can be adhesively pasted is used as the print paper. The seal-like label on which the weight rank determination result is printed may be attached to each sorting object 26. In this case, the weight rank determination result can be displayed directly on the sorting object 26 for which the sorting operation has been completed. As a result, even after the sorting operation, the weight rank of the sorting object 26 can be known by looking at the actual product.

Furthermore, the configuration of the forklift weight rank determination device 1 according to the present embodiment can be used as it is for the following applications.
Up to now, for example, as in the case of radishes, when the individual sorting objects 26 are large in outer shape and weight and contain a plurality of sorting objects 26 in the container 25, it is difficult to lift the container 25 manually. In this case, the case where the sorting operation is performed while being lifted by the forklift (for example, counterbalance forklift 13) equipped with the forklift weight rank determination apparatus 1 according to the present embodiment has been described. In contrast, the forklift weight rank determination apparatus 1 according to the present embodiment, when a single or a lump of sorting objects cannot be lifted manually, the weight of the single or lump of sorting objects. It can also be used as an apparatus for sorting ranks.

FIG. 6 is a flowchart showing a procedure for selecting the weight rank of a single or a lump of selection objects using the forklift weight rank determination apparatus according to the embodiment of the present invention. The same parts as those described in FIGS. 1 to 5 are denoted by the same reference numerals, and description of the configuration is omitted.
As shown in FIG. 6, in order to select the weight rank of a single or a lump of selection objects that are difficult to lift manually, first, the forklift weight rank determination apparatus 1 according to the present embodiment is mounted. The counterbalance forklift 13 is moved to a place where there is a single or a lump of sorting objects to be sorted (step S11), and the target single or lump of sorting objects is moved by a plurality of claws 17. In addition to lifting (step S12), the weighing unit 2 (an assembly of weighing parts 2P) measures the weight of a target single or lump of objects to be selected to obtain measurement data (step S13).
Next, the arithmetic processing unit 19 compares the measurement data with the weight rank determination reference data stored in the memory unit 20 (step S14), and determines the weight rank of the single or a lump of selection objects (step S14). Step S15).
Finally, the weight rank determination result obtained in the previous step S15 may be output to the worker (step S16).

As described above, as a method for outputting the weight rank determination result, it may be displayed on the determination result display unit 8 by characters, symbols, phrases, or the like, or output by voice using the voice output unit 9. May be.
In this case, the arithmetic processing unit 19 does not need to perform a subtraction process on the weight measured in the weighing unit 2 (an assembly of the weighing parts 2P), so the weight rank determination reference data stored in the memory unit 20 and the weighing unit By simply comparing the measurement data measured by the unit 2, only the determination of the weight rank of the target single or single selection object is performed.

Further, when there are a plurality of sorting objects whose weight ranks are to be sorted, the steps from step S11 to step S16 may be repeated.
Note that one forklift is used for sorting the weight ranks of a plurality of sorting objects 26 as shown in FIG. 2 and for sorting the weight rank of a single or a lump of sorting objects as shown in FIG. When the weight rank determination device 1 is also used, the setting input / determination result output unit 3 is provided with a mode changeover switch, and the weight rank used when selecting the weight rank of the selection object 26 in the memory unit 20. In addition to the determination reference data 21, it is preferable to separately store weight rank determination reference data for selecting the weight rank of a single or a lump of selection objects.

Thus, according to the forklift weight rank determination apparatus 1 according to the present embodiment, it is possible to determine and output the weight rank of a single or a lump of sorting objects that are difficult to lift manually.
In the present specification, the case where the selection object 26 is a radish has been described as an example. However, the selection object 26 is not particularly required to be a radish, and is large in cucumbers such as Nanban and Saiban, and Chinese cabbage. Especially suitable for sorting heavy agricultural products. In addition, the forklift weight rank determination apparatus 1 according to the present embodiment can be used without difficulty for selecting the weight rank of not only agricultural products, but also marine products, marine products, industrial products, parcels, luggage, waste, and the like. it can.
Further, the sorting object 26 is not necessarily a single object, and may be a single object formed by collecting a desired number of articles.

Although not particularly illustrated, the arithmetic processing unit 19, the memory unit 20, the determination result display unit 8, the audio output unit 9, the input setting unit 10, the input setting display unit 11, the data output unit 23, and the print output unit illustrated in FIG. For example, a battery or a battery that is a power supply source for activating the battery 24 may be built in the setting input / determination result output unit 3 or from the outside of the setting input / determination result output unit 3 as necessary. The setting input / determination result output unit 3 may be provided with an outlet, a power capturing unit, or the like so that power can be captured.
The power supply source for operating the weighing part 2P constituting the weighing unit 2 may be built in the weighing part 2P, or each weighing part 2P and the setting input / determination result output unit 3 May be configured such that power is supplied from the setting input / determination result output unit 3 to each weighing part 2P through wiring.
Moreover, you may comprise so that the electric power for operating the weight rank determination apparatus 1 for forklifts concerning this Embodiment can be acquired using the engine which is a drive source of the counterbalance forklift 13. FIG.

  In the present embodiment, as an example of the container 25, a container shape as shown in FIG. 4 or a car-like shape as shown in FIG. 2 will be described as an example. However, the container 25 is not particularly limited to these forms, and is configured so that the claw 17 can be taken in and out, and configured to be able to lift one or more sorting objects 26 at a time. Any form is acceptable. More specifically, the container 25 may be, for example, a pallet used when transporting a load.

  The present invention is a weight rank determination device for forklifts that can be detachably attached to a transport device such as a forklift and can determine the weight rank of a sorting object. It can be used in fields related to waste treatment, manufacturing, and the like.

DESCRIPTION OF SYMBOLS 1 ... Weight rank determination apparatus for forklifts 2 ... Measuring part 2P ... Measuring part 2a ... Measurement module 2b ... Mounting part 2c ... Fixed structure 2d ... Handle 3 ... Setting input and determination result output part 4 ... Bolt 5 ... Nut 6 ... Measurement data Transmitter 7 ... Case 8 ... Determination result display unit 9 ... Audio output unit 10 ... Input setting unit 11 ... Input setting display unit 12 ... Measured data receiving unit 13 ... Counter balance forklift 14 ... Vehicle 15 ... Mast 16 ... Backrest 17 ... Tail 18 ... Operation part 19 ... Calculation processing part 20 ... Memory part 21 ... Weight rank judgment reference data 22 ... Audio output data 23 ... Data output part 24 ... Print output part 25 ... Container 26 ... Selection object 27 ... Side 27a ... Elongated flat plate

Claims (4)

A plurality of measuring parts that are detachably attached to each of a plurality of claws arranged in a fork shape, and when a plurality of sorting objects contained in a container are lifted by the claw together with the container, A weighing unit that measures the total load on the claw,
A memory unit for storing weight rank determination reference data for determining the weight rank;
The amount of change in the measured value in the weighing unit when the sorting object is taken out of the container from the state where a plurality of the sorting objects are accommodated in the container and lifted by the claw, and the memory An arithmetic processing unit for determining a weight rank of the selection object taken out from the container based on the weight rank determination reference data stored in the unit;
A forklift weight rank determination apparatus, comprising: a display unit configured to display a weight rank determination result obtained in the arithmetic processing unit. The forklift weight rank determination apparatus includes an audio output unit,
The forklift weight rank determination apparatus according to claim 1, wherein the memory unit stores voice output data for outputting the weight rank determination result by voice in addition to the weight rank determination reference data.   The forklift according to claim 1 or 2, wherein the weighing part is mounted on the claw and includes a fixing structure for fixing the measuring part in the vicinity of a bent portion of the claw. Weight rank determination device. The plurality of claws lift a single or a lump of sorting objects instead of the plurality of sorting objects housed in the container,
The arithmetic processing unit is singular or based on the measurement value measured by the weighing unit when the singular object or the lump of the selection object is lifted, and the weight rank criterion data stored in the memory unit. The weight rank determination apparatus for forklifts according to any one of claims 1 to 3, wherein a weight rank of a group of the objects to be sorted is determined.

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