JP6998753B2 - Suspension belt slinging device and forklift attachment equipped with it - Google Patents

Description

The present invention relates to a slinging ball removing device for a suspension belt used when transferring a heavy object by a forklift or a crane, mainly using a suspension belt, and an attachment for a forklift provided with the slinging device.

Conventionally, long members such as steel bars, steel pipes, and shaped steels are bundled for each type during transportation and storage, and are bundled and handled by belts, wires, and the like. Then, when loading a load consisting of these long members in an open top container with an open top surface using a large cargo handling machine such as a truck crane or a gantry crane, the container upper sheet is removed. , Installation, removal of many seat sagging prevention pipes, installation, etc. are required. For this reason, there is a problem that a large amount of labor and time are required and the loading work cannot be performed efficiently. On the other hand, for example, Patent Document 1 discloses a loading device for loading a load to be loaded on a container having a rear opening such as a dry container by using a forklift.

Japanese Unexamined Patent Publication No. 11-171491

However, in Patent Document 1, one end of the suspension belt that holds the load is detachably connected to the lift mounting beam by the belt attachment / detachment connection mechanism, and the other end is detachably connected to the lift attachment beam by the belt fixing connection mechanism. It is fixedly connected. All the work of attaching and detaching the suspension belt (slinging and removing the ball) must be done manually, and there is a problem that labor saving is lacking. In particular, when working in a narrow space inside a container, it is necessary to pay attention to safety by calling out to the worker (forkman) who operates the forklift or giving a signal, which lacks workability. There was a problem that the burden on the worker also increased.
The present invention has been made in view of such circumstances. By using a suspension belt and automating the ball removing work when transferring a heavy object by a forklift or a crane, the work man-hours can be reduced and the worker can use it. It is an object of the present invention to provide a slinging / removing device for a suspension belt and an attachment for a forklift equipped with the slinging / removing device for a suspension belt, which can reduce the burden and perform work easily, quickly, safely and surely.

The slinging and slinging device for a suspension belt according to the first invention according to the above object is provided with a slinging mechanism for detachably holding an annular portion formed at at least one end of the suspension belt, and the slinging mechanism is provided. , The frame portion, the manual rod slidably held by the frame portion and movable between the standby position and the slinging position, the slinging rod arranged coaxially with the manual rod, and the slinging rod. Has a rod drive unit that reciprocates between the initial position and the sling position.
At the time of slinging, the rod driving portion is driven to move the slinging rod from the initial position to the slinging position, so that the slinging rod is inserted into the annular portion at the slinging position to temporarily hold the suspension belt. The manual rod is pressed to move it to the standby position, and the slinging rod is inserted through the annular portion to hold the suspension belt.
At the time of ball removal, the rod driving portion is driven to retract the slinging rod from the slinging position to the initial position, and the rod is pulled out from the annular portion.

The attachment for a forklift according to the second invention according to the above object has a long lift mounting beam to which the fork of the forklift is detachably mounted at the base end, and the plurality of attachments according to the first invention are attached to the lift mounting beam. The slinging and ball removing device of the suspension belt is attached at intervals in the longitudinal direction.

In the attachment for a forklift according to the second invention, the slinging slinging mechanism of each of the suspension belts is arranged in parallel in the slinging and slinging mechanism, and the annular shape formed at both ends of the suspension belts. It is preferable that the portion is detachably held.

In the forklift attachment according to the second invention, a transmitter that wirelessly transmits a signal instructing the driving of the rod drive unit and a receiver that receives the signal attached to the lift mounting beam and transmitted from the transmitter. It is preferable to have a machine and a control unit attached to the lift mounting beam and controlling the drive of the rod drive unit based on the signal received by the receiver.

In the forklift attachment according to the second invention, it is preferable to have a manual rod position detecting unit for detecting whether the manual rod is in the standby position or the slinging position.

In the forklift attachment according to the second invention, it is preferable to have a slinging rod position detecting unit for detecting whether the slinging rod is in the initial position or the slinging position.

In the forklift attachment according to the second invention, it is preferable to have a notification unit that distinguishes whether the slinging rod is in the initial position or the slinging position.

In the forklift attachment according to the second invention, it is preferable to have a lighting unit attached to the tip end side of the lift mounting beam.

The slinging ball removing device for the suspension belt according to the first invention is a rod drive unit from a state in which the manual rod is manually moved to the sling position in advance and inserted through the annular portion of the suspension belt to be temporarily held at the time of slinging. By driving and moving the slinging rod from the initial position to the slinging position, the manual rod is pressed by the slinging rod to move it to the standby position, and the slinging rod is inserted through the annular part to attach the suspension belt. Since it is held, the slinging work can be simplified and labor-saving, and the work can be performed safely and surely. In addition, when removing the sling, the slinging rod can be pulled out from the annular portion and the slinging rod can be automatically removed by simply driving the rod drive unit and retracting the slinging rod from the slinging position to the initial position. After transferring a heavy object with a forklift or a crane, the worker does not have to manually remove the ball as in the past, and the work can be done quickly, safely and efficiently, reducing the work man-hours. , The burden on the worker can be reduced.

The attachment for a forklift according to the second invention has a long lift mounting beam to which the fork of the forklift is detachably mounted at the base end, and the lift mounting beam has a plurality of suspension belts according to the first invention. Since the slinging and removing device is installed at intervals in the longitudinal direction, it is easy and quick to load a stack of long members such as steel bars, steel pipes, and shaped steel simply by attaching it to an existing forklift. It can be safely and reliably loaded into containers, trucks, etc.

When two slinging mechanisms are arranged in parallel on the slinging and slinging device of the suspension belt and the annular portions formed at both ends of the suspension belt are detachably held, the load is loaded. Depending on the position and the like, one of the slinging mechanisms can be operated to reliably perform the slinging work.

A transmitter that wirelessly transmits a signal instructing the drive of the rod drive unit, a receiver that is attached to the lift mounting beam and receives a signal transmitted from the transmitter, and a signal that is attached to the lift mounting beam and received by the receiver. If it has a control unit that controls the drive of the rod drive unit based on the above, the operator who operates the forklift can perform the ball removal work from a remote location (driver's seat), which is excellent in work efficiency and safety. ..

If the manual rod has a manual rod position detector that detects whether the manual rod is in the standby position or the sling position, it is determined whether the manual rod is in the standby state or the suspension belt is temporarily held. Therefore, the rod drive unit can be driven at the correct timing, and the operation reliability is excellent.

If the slinging rod has a slinging rod position detector that detects whether the slinging rod is in the initial position or the slinging position, the forklift can be operated after confirming that the slinging work is completed, so that the work is reliable. Excellent in sex and safety. In particular, when used in combination with the manual rod position detector, it is possible to reliably grasp the state of each operation of the sling rod and the manual rod, including the temporary holding state by the manual rod, and it is possible to improve the reliability of the operation. can.

If the slinging rod has a notification unit that distinguishes between the initial position and the slinging position, the operator (mainly Forkman) is surely notified of the completion of the slinging work and the slinging work. You can safely and quickly move on to the next operation.

When the lighting unit is mounted on the tip side of the lift mounting beam, the inside of the container or the like on which the load to be loaded can be loaded can be illuminated and the work can be performed safely.

It is a side view which shows the use state of the attachment for a forklift provided with the slinging ball removing device of the suspension belt which concerns on 1st Embodiment of this invention. It is a main part plan view which shows the use state of the attachment for a forklift. It is a front view of the main part which shows the use state of the attachment for the forklift. It is a perspective view which shows the slinging ball removing device of the suspension belt in the attachment for the forklift. (A), (B), and (C) are explanatory views showing the operation of the slinging ball removing device of the suspension belt in the attachment for the forklift. It is a side view which shows the use state of the slinging ball removing device of the suspension belt which concerns on 2nd Embodiment of this invention.

Subsequently, an embodiment embodying the present invention will be described with reference to the attached drawings, and the present invention will be understood.
As shown in FIGS. 1 to 3, the forklift attachment 10 provided with the slinging ball removing device (hereinafter, also simply referred to as a slinging ball removing device) 17 for the suspension belt according to the first embodiment of the present invention is A load 14 (for example, a diameter of 300 mm and a weight of about 2 tons), which is attached to the fork 12 of the forklift 11 and in which a plurality of long steel materials 13 (for example, round steel or steel pipe) are bundled, is attached to a container, a truck, or the like. It is used for loading.
As shown in FIGS. 1 and 2, the forklift attachment 10 has a long lift mounting beam 15 to which the fork 12 of the forklift 11 is detachably mounted at the base end, and a distance between the lift mounting beam 15 in the longitudinal direction. It has two slinging and ball removing devices 17 which are opened and attached and each hold both ends of a suspension belt 16 which holds a load 14. Hereinafter, the front side of the forklift 11 in the traveling direction will be described as the front side of the forklift attachment 10.

As shown in FIG. 4, two slinging mechanisms 20 for detachably holding the annular portions 18 formed at both ends of the suspension belt 16 are arranged in parallel on each slinging slinging device 17.
Each slinging mechanism 20 has a manual rod 23 slidably held in the frame portion 21 by a sliding guide portion 22 provided in parallel with the longitudinal direction of the lift mounting beam 15. The manual rod 23 is movable between the standby position 24 on the front side of each slinging ball removing device 17 and the slinging position 25 in the central portion. An operation handle 26 is provided on the upper portion of the manual rod 23 on the front end side, and a long hole-shaped guide hole 27 through which the operation handle 26 penetrates is formed on the upper surface of the frame portion 21 in parallel with the sliding guide portion 22. ing. As a result, the operator can grasp the operation handle 26 by hand and manually slide the manual rod 23 to move it from the standby position 24 to the slinging position 25.

Further, each slinging mechanism 20 has a slinging rod 30 arranged coaxially with the manual rod 23, and the slinging rod 30 is placed between the initial position 31 on the rear side of each slinging slinging device 17 and the slinging position 25. It has a rod drive unit 32 that reciprocates. The rod drive unit 32 has a motor 33 capable of forward and reverse rotation and a speed reducer 34, and a pinion 36 is attached to the output shaft 35 of the speed reducer 34. A rack 37 that meshes with the pinion 36 along the longitudinal direction thereof is provided at the bottom of the sling rod 30. Therefore, by driving the rod drive unit 32 (motor 33) and rotating the pinion 36 in the forward and reverse directions, the slinging rod 30 reciprocates between the initial position 31 and the slinging position 25 together with the rack 37. At this time, a rack guide 38 that slidably guides the rack 37 is provided on the front side of the position of the pinion 36, so that the sling rod 30 can be smoothly reciprocated.

Next, a slinging rod position detecting unit (for example, a proximity sensor) 40 is provided at the rear end of each initial position 31, and a slinging rod position detecting unit 40 can detect at the rear end of each slinging rod 30. The detected unit 41 is attached. As a result, when the slinging rod 30 is retracted and is in the initial position 31, the slinging rod position detecting unit 40 detects the detected portion 41, and the slinging rod 30 is in the initial position 31 (for slinging). It can be determined that the rod 30 is not at the slinging position 25). Further, a notification unit 42 is provided above the frame unit 21 in conjunction with the slinging rod position detecting unit 40 to turn on when the slinging rod 30 is at the slinging position 25 and turn off when the slinging rod 30 is at the initial position 31. Therefore, the operator (mainly) determines whether the slinging rod 30 is in the slinging position 25 and the slinging work is completed, or the slinging rod 30 is in the initial position 31 and the slinging work is completed. Folkman) can be surely notified.

Next, as shown in FIG. 1, the forklift attachment 10 is attached to a transmitter (remote controller) 45 that wirelessly transmits a signal instructing drive of each rod drive unit 32 and a lift mounting beam 15, and is a transmitter. It has a receiver 46 that receives a signal transmitted from 45, and a control unit 47 that is attached to the lift mounting beam 15 and controls the drive of the rod drive unit 32 based on the signal received by the receiver 46. Therefore, the forkman can operate the transmitter 45 from the driver's seat of the forklift 11 to remotely drive each rod drive unit 32.
A lighting unit 48 having an LED or the like as a light source is attached to the tip end side of the lift mounting beam 15, and the work can be performed while illuminating the inside of the container or the like at the loading destination. Further, a generator 50 for supplying electric power to the rod drive unit 32, the receiver 46, and the lighting unit 48 is attached to the lift mounting beam 15.

Hereinafter, the operation (usage method) of the forklift attachment 10 will be described.
First, the forklift 11 is operated to move the forklift attachment 10 above the load 14. After passing the suspension belt 16 under the loadable object 14 so as to include the load-loaded object 14, the operator moves the manual rod 23 from the standby position 24 as shown in FIG. 5 (A). It is moved to the slinging position 25, and the manual rod 23 is inserted through the annular portions 18 at both ends of the suspension belt 16 to temporarily hold the suspension belt 16.

Next, as shown in FIG. 5B, by driving the rod drive unit 32 to move the slinging rod 30 from the initial position 31 to the slinging position 25, the slinging rod 30 is inserted into the annular portion 18 at the slinging position 25. The manual rod 23 that temporarily holds the suspension belt 16 is pressed to move it to the standby position 24, and the sling rod 30 is inserted through the annular portion 18 to hold the suspension belt 16. At this time, the slinging rod 30 is detected at the slinging position 25 (not at the initial position 31) by the slinging rod position detecting unit 40, and the notification unit 42 is turned on to indicate that the slinging work is completed. Notify the worker (folkman). The slinging rod position detecting unit 40 may be any as long as it can determine whether the slinging rod 30 is at the initial position 31 or the slinging position 25. For example, when the detected unit 41 comes into contact with the slinging rod position detecting unit 40, the slinging rod 30 is detected to be in the initial position 31, and the detected unit 41 is used to the slinging rod position detecting unit 40. It may be detected by magnetism or the like that it is approaching.

Next, the forkman operates the forklift 11 to convey the load 14 to a predetermined position of the loading destination such as a container, place it on a ring (board, sleeper), and then transmit. 45 is operated, and as shown in FIG. 5C, the slinging rod 30 is retracted from the slinging position 25 to the initial position 31 by driving the rod driving unit 32 on either the left or right side of each slinging slinging device 17. It is retracted) and pulled out from the annular portion 18 at either end of the suspension belt 16. At this time, the slinging rod position detecting unit 40 detects that the slinging rod 30 is in the initial position 31, and turns off the notification unit 42 to notify the forkman that the slinging work is completed.
Since the other annular portion 18 of the suspension belt 16 is still held by the slinging rod 30, when the forkman raises the fork 12, the other annular portion 18 from which the slinging rod 30 is pulled out is a container. The loading work is completed by passing between the floor surface such as the above and the object to be loaded 14 or between the adjacent objects 14 to be loaded.
In the above operation, during the slinging operation, the manual rod 23 is inserted into the annular portion 18, the suspension belt 16 is temporarily held, and then the sling rod 30 is inserted into the annular portion 18, and the suspension belt 16 is inserted. The load 14 is temporarily placed on the ground until it is supported and the slinging work is completed, and the manual rod 23 and the slinging rod 30 are not loaded. Further, when the slinging rod 30 is pulled out from the annular portion 18 during the slinging work, the slinging rod 30 is in a state of being placed on the floor surface of the container or the like to which the slinging rod 30 is to be loaded. Is not overloaded.

At the time of ball removal, whether to drive the left or right rod drive unit 32 of each slinging ball removing device 17 to pull out the slinging rod 30 from the annular portion 18 depends on the mounting position of the object to be loaded 14 and other loading. It can be appropriately selected according to the positional relationship with the object 14. Further, instead of arranging two slinging mechanisms 20 in parallel on each slinging slinging device 17 as in the present embodiment, only one slinging mechanism is arranged on each slinging slinging device, and the suspension belt 16 It is also possible to have a structure in which only the annular portion 18 on one end side is detachably held and the other end side is fixed to each slinging ball removing device.
In FIG. 5A, the manual rod 23 is moved from the standby position 24 to the slinging position 25 to temporarily hold the suspension belt 16, and then in FIG. 5B, the rod driving unit 32 is driven to sling. The operation of moving the rod 30 from the initial position 31 to the slinging position 25 may be performed by the Forkman operating the transmitter 45 according to an instruction (signal) from the operator who has moved the manual rod 23. Whether the manual rod 23 is in the standby position 24 or the slinging position 25 may be detected by the manual rod position detecting unit and automatically performed. As the manual rod position detecting unit, the same as the slinging rod position detecting unit is preferably used.

Next, a case where the slinging ball removing device 17a according to the second embodiment of the present invention is applied to the suspended balance 51 will be described with reference to FIG. As shown in FIG. 6, the suspension balance 51 has a frame portion 53 horizontally suspended by a suspension hook (not shown) of a crane via a suspension means (for example, a suspension wire) 52. .. The frame portion 53 is formed in a substantially rectangular frame shape in a plan view, and temporary standing stands 54 are provided at key points (for example, four corners) on the bottom surface, and the frame portion 53 is mounted on a loading platform of a transport vehicle for transportation. Can be done. Further, a slinging ball removing device 17a is attached to one end side of each short side portion 55 in the frame portion 53 in the longitudinal direction, and a hanging upper portion 56 is provided on the other end side. The slinging and slinging device 17a differs from the first embodiment in that only one slinging mechanism 20 is arranged and that the slinging and slinging device 17a is attached to the frame portion 53 (each short side portion 55) in an upside down state. It is a point that has been done. The annular portion 18 formed at one end of the suspension belt (for example, nylon sling) 16 that holds the long heavy object (for example, a large blade for wind power generation) 57 is the same as that of the first embodiment. In addition, it is detachably held by the slinging mechanism 20. Further, a hooking portion 58 is attached to the other end of the suspension belt 16, and the pin 59 horizontally penetrates the hanging upper portion 56 and the hanging portion 58, and the hanging upper portion 56 and the hooking portion 58 are attached. Is connected, the other end side of the suspension belt 16 is held by the suspension upper portion 56.

The slinging and slinging device 17a is upside down with the slinging and slinging device 17, but the structure and operation of the slinging mechanism 20 itself is the same as that of the first embodiment, and thus the description thereof will be omitted.
In this embodiment, only the annular portion 18 at one end of the suspension belt 16 is held by the slinging mechanism 20, and the hooking portion 58 at the other end is held by the suspension upper portion 56 via the pin 59. However, instead of using the suspension upper portion 56, the hooking portion 58, and the pin 59, the slinging ball removing device 17a is attached to the other end side of the short side portion 55, and the annular portion is also attached to the other end portion of the suspension support belt 16. It may be formed so that both ends of the suspension belt 16 are held by the slinging mechanism 20.
In this way, even if the suspension belt becomes thicker and heavier depending on the object to be transported, it is automatically and easily used after the manual rod 23 is manually operated and inserted into the annular portion of the suspension belt during slinging. The work can be performed, and when the ball is removed, the work can be safely and surely performed in a short time by remote control.

Although the embodiments of the present invention have been described above, the present invention is not limited to the configuration described in the above-described embodiments, and can be considered within the scope of the matters described in the claims. Other embodiments and modifications are also included.
For example, the arrangement of the slinging rod position detecting unit and the detected unit is not appropriately limited to the above embodiment, and the arrangement of the slinging rod 30 directly detects that the slinging rod 30 is in the initial position 31. It is possible to select whether to directly detect that the rod is at the sling position 25. Further, by increasing the number of the slinging rod position detecting unit and the detected unit, the slinging rod 30 is located at the initial position 31 and the slinging position 25 is detected by the slinging rod position detecting unit and the detected unit. It can also be detected by the unit. Even when the manual rod position detection unit is provided, it is possible to select whether to directly detect that the manual rod 23 is in the standby position 24 or directly detect that it is in the sling position 25 by arranging the manual rod position detection unit. Can be done. Further, by increasing the number of manual rod position detecting units, it is possible to detect that the manual rod 23 is in the standby position 24 and the slinging position 25 by separate manual rod position detecting units.

In the above embodiment, the motor 33 and the speed reducer 34 are used as the rod drive unit 32, and the rotary motion of the motor 33 is converted into the reciprocating linear motion of the slinging rod 30 by the combination of the pinion 36 and the rack 37. A hydraulic cylinder, an air cylinder, or the like may be used as the drive unit, and the slinging rod may be directly reciprocated in a linear motion.
Further, in the above embodiment, the notification unit 42 that lights up when the slinging rod 30 is at the slinging position 25 and turns off when the slinging rod 30 is at the initial position 31 notifies the completion of the slinging work and the slinging work. The unit is not limited to this, and may be any unit as long as it can notify the completion of the slinging work and the slinging work. For example, when the slinging work and the ball removing work are completed, lamps of different colors may be turned on for notification, or a buzzer, siren, or the like may be used to notify the notification.
The slinging ball removing device according to the present invention is not limited to the above embodiment, and can be applied to various devices requiring the slinging ball removing work to improve labor saving and safety of the slinging ball removing work.

10: Attachment for forklift, 11: Forklift, 12: Fork, 13: Steel material, 14: Loaded object, 15: Lift mounting beam, 16: Suspension support belt, 17, 17a: Slinging ball remover, 18: Ring part , 20: Sling mechanism, 21: Frame part, 22: Sliding guide part, 23: Manual rod, 24: Standby position, 25: Sling position, 26: Operation handle, 27: Guide hole, 30: Sling rod, 31 : Initial position, 32: Rod drive unit, 33: Motor, 34: Reducer, 35: Output shaft, 36: Pinion, 37: Rack, 38: Rack guide, 40: Sling rod position detector, 41: Detected Unit, 42: Notification unit, 45: Transmitter (remote control), 46: Receiver, 47: Control unit, 48: Lighting unit, 50: Generator, 51: Suspended balance, 52: Suspended means, 53: Frame unit , 54: Temporary stand, 55: Short side, 56: Suspended upper part, 57: Long heavy object, 58: Hook part, 59: Pin

Claims (8)

A slinging mechanism for detachably holding an annular portion formed at at least one end of the suspension belt is provided, and the slinging mechanism is slidably held by the frame portion and the frame portion, and is held in a standby position and a slinging position. It has a manual rod that can move between the manual rod, a slinging rod that is arranged coaxially with the manual rod, and a rod drive unit that reciprocates the slinging rod between the initial position and the slinging position. death,
At the time of slinging, the rod driving portion is driven to move the slinging rod from the initial position to the slinging position, so that the slinging rod is inserted into the annular portion at the slinging position to temporarily hold the suspension belt. The manual rod is pressed to move it to the standby position, and the slinging rod is inserted through the annular portion to hold the suspension belt.
A slinging slinging device for a suspension belt, characterized in that when the slinging rod is removed, the rod driving portion is driven to retract the slinging rod from the slinging position to the initial position and pull it out from the annular portion. A long lift mounting beam to which a fork of a forklift is detachably mounted is provided at a base end, and a plurality of suspension belt slinging ball removing devices according to claim 1 are provided on the lift mounting beam at intervals in the longitudinal direction. Attachment for forklifts, which is characterized by being installed open. In the forklift attachment according to claim 2, two slinging mechanisms are arranged in parallel in the slinging slinging device of each suspension belt, and the annular portion formed at both ends of the suspension belt. An attachment for a forklift that is characterized by being detachably held. In the forklift attachment according to claim 2 or 3, the transmitter that wirelessly transmits a signal instructing the driving of the rod drive unit and the signal that is attached to the lift mounting beam and transmitted from the transmitter are received. An attachment for a forklift having a receiver and a control unit attached to the lift mounting beam and controlling the drive of the rod drive unit based on the signal received by the receiver. The forklift attachment according to any one of claims 2 to 4, wherein the forklift has a manual rod position detecting unit for detecting whether the manual rod is in the standby position or the slinging position. attachment. The forklift attachment according to any one of claims 2 to 5 is characterized by having a slinging rod position detecting unit for detecting whether the slinging rod is in the initial position or the slinging position. Attachment for forklift. The forklift attachment according to any one of claims 2 to 6, wherein the forklift attachment has a notification unit for distinguishing whether the slinging rod is in the initial position or the slinging position. attachment. The forklift attachment according to any one of claims 2 to 7, wherein the forklift attachment has a lighting unit attached to the tip end side of the lift mounting beam.

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