JP3218344U - Forklift attachment - Google Patents

Abstract

A long cargo can be carried into and out of a hull if the height of a long cargo including a carriage is lower than the height of a carry-in / out entrance of a hull of an automobile-only vessel.
An attachment 30 is mounted on a fork 23 of a forklift 20 and one end of a carriage 11 on which a long cargo is loaded is moved up and down by the forklift 20. The attachment 30 includes a base 31 that is detachably attached to the fork 23, and an arm 41 that is swingably connected to the base 31 about a horizontal axis and is attached to one end of the carriage. When transporting the carriage 11 along the inclined surface, the fork 23 is raised and the carriage 11 is held horizontally via the arm 41.
[Selection] Figure 7

Description

  The present invention relates to an attachment for a forklift that is used when a carriage loaded with a long cargo such as a railway vehicle is transported by a forklift.

  When transporting a long cargo such as a railway vehicle, a long steel material, or a utility pole, the long cargo is mounted on a carriage. When carrying a long cargo on a bogie and transporting it on a RO-RO ship (roll-on / roll-off ship), that is, a cargo ship with a vehicle deck (automobile ship), A dedicated tractor, that is, a towing vehicle, is used to transport the mounted carriage between the car carrier and the quay. A side lamp is provided on the side of the car carrier, and a stern lamp is provided on the stern. Each rampway is an inclined slope or ramp, and the ramp is connected to the main deck in the hull via a loading / unloading port.

  Patent document 1 is disclosing the connection vehicle for conveying a long cargo. This connection vehicle has a front transportation cart that supports one end of a long cargo and a rear transportation cart that supports the other end. When transporting a rail vehicle as a long cargo on an automobile ship, the railway vehicle is loaded onto the automobile ship by a tow vehicle at the wharf for loading the vehicle, and at the wharf for unloading the vehicle. The railway car is unloaded from the car carrier. A tow vehicle that loads and unloads long cargo at the wharf is also called a tag master.

  As described in Patent Document 1, a carriage on which a long cargo such as a railway vehicle is mounted supports a split type carriage having a front transportation carriage and a rear transportation carriage, and the entire long cargo. There is an integrated cart, which is also called a roll trailer. The roll trailer is provided with a wheel at one end and a leg for keeping the upper surface of the roll trailer horizontal when grounded at the other end. An insertion hole for inserting an arm connected to the towing vehicle is provided on the end surface of the other end.

  A king pin connected to a coupler is provided on the arm of the tow vehicle. When a roll trailer loaded with a long cargo is transported by the tow vehicle, an arm is attached to the other end of the roll trailer. Is coupled to the coupler of the tow vehicle.

Japanese Patent No. 4823380

  The arm connected to the towing vehicle is moved up and down to the extent that the end of the roll trailer, which is a carriage, is lifted, but the end of the carriage cannot be raised greatly. For this reason, even if the height of the main deck carry-out entrance is higher than the height of the railway vehicle including the carriage, that is, the height of the railway vehicle including the carriage is lower than the height of the carry-out entrance. However, there are cases where the railway vehicle cannot be carried into the main deck. The reason is that rampways such as side ramps and stern ramps that span between the main deck's unloading entrance and wharf are slanted, and the railcar moves in parallel along the rampway toward the unloading entrance. This is because the upper end corner of the inclined railway vehicle comes into contact with the ceiling surface of the carry-in / out entrance. That is, when the railway vehicle is inclined due to the rampway inclination, the apparent height of the railway vehicle from the deck floor at the carry-in / out entrance is increased. The same applies to not only railway vehicles but also long cargo other than railway vehicles, such as when mounted on a large number of utility pole bogies.

  On the other hand, if the height of the ship's loading / unloading port is excessively high at the time of ship design, the height of other decks other than the main deck will be affected, reducing the total load capacity of the cargo that can be loaded on the ship, and improving transportation efficiency. Will fall.

  The purpose of the present invention is to enable long cargo to be carried in and out of the hull if the height of the long cargo including the bogie is lower than the height of the carry-in / out entrance of the hull of the car carrier. is there.

  The present invention is a forklift attachment for vertically moving one end of a carriage on which a long cargo is mounted by a forklift, a base that is detachably attached to the fork of the forklift, and a horizontal axis on the base And an arm mounted on one end of the carriage, and when the carriage is transported along an inclined surface, the fork is moved up and down to move the carriage through the arm. The end of the carriage is moved up and down.

  When the attachment arm attached to the fork of the forklift is attached to the end of the carriage on which the long cargo is mounted, and the fork is moved up, the long cargo and the carriage are kept in a horizontal state even on the ramp. Can be transported. Therefore, if the height of the long cargo including the carriage is lower than the height of the carry-in / out entrance of the hull of the car carrier, the long cargo can be easily carried in and out of the hull.

It is a side view of the trolley | bogie equipped with the rail vehicle which is a long cargo. It is a side view which shows the attachment for forklifts which is one Embodiment in the state with which the forklift was mounted | worn. FIG. 3 is an enlarged perspective view showing the forklift attachment shown in FIG. 2. FIG. 4 is a plan view of FIG. 3. FIG. 4 is a left side view of FIG. 3. FIG. 4 is a front view of FIG. 3, (A) shows a state where the arm is horizontal, and (B) shows a state where the arm is inclined. It is a side view which shows the state which attached the attachment with which the forklift was mounted | worn to the trolley | bogie. (A) is a side view showing a state where a forklift transports a cart via a ramp way to a dedicated car ship, and (B) shows a conventional example of a cart using a tow vehicle via a ramp way and dedicated to a car. It is a side view shown assuming the case where it conveyed to the ship.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a state in which a railcar 10 as a long cargo is mounted on a carriage 11, and a wheel 12 is provided at one end of the carriage 11. An insertion hole 13 is provided at the other end of the carriage 11 as indicated by a broken line. The insertion hole 13 is provided at the center in the width direction of the carriage 11 and opens at the end surface of the carriage 11. If the left end portion, that is, one end portion of the carriage 11 in FIG. 1 is a front end portion and the opposite side is a rear end portion, the insertion hole 13 is provided at the rear end portion of the carriage 11. A leg 14 is provided at the rear end of the carriage 11, and when the leg 14 and the wheel 12 are in contact with the running surface 15, as shown in FIG. 1, the carriage 11 has a flat running surface 15. Become parallel. A hook 16 is provided on the rear end surface of the carriage 11 so as to protrude rearward. In FIG. 1, the railway vehicle 10 is schematically shown as a housing, and wheels, suspension devices, and the like are not shown.

  The carriage 11 on which the railway vehicle 10 is mounted is conveyed by a forklift 20. As shown in FIG. 2, the forklift 20 has a mast 22 disposed on the front surface of the vehicle body 21, and two claws, that is, a fork 23 is attached to the mast 22 together with a backrest 24 so as to be movable up and down. The fork 23 projects substantially horizontally from the lower end of the mounting portion 25 attached to the backrest toward the front of the vehicle body 21.

  A forklift attachment 30 is detachably attached to the forklift 20. FIG. 2 shows a state in which the attachment 30 is attached to the fork 23. The attachment 30 has a base 31 as shown in FIGS. The base 31 has two fork guides 32 each having a quadrangular cross-sectional shape, and a through hole 33 extending in the longitudinal direction is formed inside each fork guide 32. The two forks 23 of the forklift 20 are respectively inserted into the through holes 33 of the fork guide 32. The right end portion of the fork guide 32 in FIG. 4 is a base end portion, and the opposite side is a front end portion.

  The two fork guides 32 are parallel to each other, the front ends of the fork guides 32 are connected by a connecting plate 34, a reinforcing plate 34 a is attached to the connecting plate 34, and both ends of the reinforcing plate 34 a are connected to the fork guide 32. It is fixed. The base end of the fork guide 32 is connected by a connecting plate 35, a reinforcing plate 35 a is attached to the connecting plate 35, and both ends of the reinforcing plate 35 a are fixed to the fork guide 32. Both the front and rear connecting plates 34 and 35 extend over the entire width of the base 31. As described above, the base 31 has a quadrilateral shape as a whole by the two left and right fork guides 32, the connecting plate 34 on the distal end side, and the connecting plate 35 on the proximal end side. An opening window 36 that opens upward is provided at the base end of the fork guide 32, and when the fork 23 is inserted into the fork guide 32, as shown by a broken line in FIG. Are arranged in the left and right open window portions 36, respectively.

  FIG. 4 shows a state in which the mounting portion 25 of the fork 23 is abutted against the abutting surface 37 provided on the fork guide 32. As shown in FIG. 3, the fork guide 32 is provided with mounting holes 38a and 38b. The mounting holes 38a and 38b are located on the rear side of the abutting surface 37 and are provided on the inner and outer side walls of the fork guide 32 in which the opening window 36 is formed. As shown by a two-dot chain line in FIG. 4, bolts 39 as stopper members are attached to the attachment holes 38 a and 38 b, and the fork 23 is inserted into the fork guide 32. The bolt 39 is attached to the attachment holes 38a and 38b. This prevents the base 31 from coming off the fork 23.

  When the inner attachment hole 38b is a screw hole, the bolt 39 inserted from the outer attachment hole 38a can be screwed to the screw hole. On the other hand, if both the outer and inner attachment holes 38a and 38b are through holes, the head of the bolt 39 is abutted against the outer side wall, and the nut is abutted against the inner side wall. In addition, you may make it weld a nut to an inner side wall part.

  As shown in FIGS. 3 to 5, an arm 41 is connected to the base 31. The arm 41 has a base portion 44 including a connecting portion 42 and a rod-like protruding portion 43 protruding from the tip of the connecting portion, and the connecting portion 42 is connected to the base 31. A bent portion 45 that protrudes downward is provided at the tip of the protruding portion 43 of the base portion 44, and a claw portion 46 that protrudes forward is provided at the lower end portion of the bent portion 45. When the claw portion 46 is inserted into the insertion hole 13 provided at the rear end portion of the carriage 11, the arm 41 is attached to the rear end portion of the carriage 11, and the bent portion 45 is abutted against the end surface of the carriage 11.

  The connecting portion 42 of the arm 41 is connected to the base 31 by a coupler 51. As shown in FIG. 6, the coupler 51 includes a coupler upper part 52 attached to the coupling part 42 and a coupler receiving part 53 attached to the base 31 and supporting the coupler upper part 52 so as to be swingable. A king pin (not shown) provided in the connecting portion 42 is detachably engaged with the coupler upper portion 52. In each of the drawings, a state in which the coupler upper part 52 is mounted on the connecting part 42 of the arm 41 is shown. The coupler upper portion 52 is attached to the coupler receiving portion 53 so as to be swingable in the direction indicated by the arrow P around the horizontal axis Oh, and is also capable of swinging in the direction indicated by the arrow Y around the vertical axis Ov. Is attached.

  Since the arm 41 is connected to the base 31 by the coupler 51, the arm 41 can swing with respect to the base 31. 6A shows a state in which the arm 41 is substantially horizontal, and FIG. 6B shows a state in which the arm 41 swings around the horizontal axis Oh in a direction from the horizontal state to the claw portion 46 being on the lower side. Indicates. The arm 41 is swingable about the vertical axis Ov in the direction in which the claw portion 46 moves in the vertical direction in FIG.

  A protrusion 54 is provided on the bent portion 45 of the arm 41 so as to protrude left and right. As shown in FIG. 7, when the claw portion 46 of the arm 41 is inserted into the insertion hole 13 of the carriage 11, the hook 16 provided on the carriage 11 engages with the protrusion 54. Accordingly, the claw portion 46 is prevented from coming out of the insertion hole 13 and the load of the carriage 11 is also supported by the protrusion 54 via the hook 16 when the arm 41 is raised. Further, a chain connecting member 55 is provided on the protruding portion 43 of the arm 41 so as to protrude left and right. As shown in FIG. 5, the chain connecting member 55 includes a C-shaped member 56 and a lever 57 that is swingably attached thereto, and is also referred to as an eye metal fitting. As shown in FIG. 7, the arm 41 is attached to the carriage 11 by the chain 58 by hooking the chain 58 attached to the carriage 11 on the chain connecting member 55 in a state where the arm 41 is attached to the carriage 11. Connected. The chain 58 is attached to the end surface of the carriage at the outer side in the width direction of the carriage 11 than the hook 16.

  A procedure for loading and unloading the carriage 11 on which a long cargo such as the railcar 10 is mounted on an automobile dedicated ship will be described.

  As shown in FIG. 2, the attachment 30 is attached to the fork 23 of the forklift 20 in advance. The fork 23 is inserted into the fork guide 32 of the attachment 30, and the mounting portion 25 is abutted against the abutting surface 37. As shown in FIG. 4, a bolt 39 as a stopper member is attached to the attachment hole 38 a provided in the fork guide 32. The bolt 39 extends rearwardly of the fork 23 in a direction crossing the fork 23 and prevents the fork 23 from coming off the fork guide 32. The forklift 20 can be used for transporting various cargoes other than the carriage 11, and the attachment 30 is attached to the forklift 20 when the forklift 20 transports the carriage 11. However, when the forklift 20 is used for conveying the carriage 11, the attachment 30 can be left attached to the fork 23 of the forklift 20.

  As shown in FIG. 2, when the carriage 11 loaded with a long cargo and placed on the wharf is carried into the car carrier ship, the carriage 11 placed on the flat traveling surface 15 as shown in FIG. The forklift 20 to which the attachment 30 is attached is moved closer.

  Next, the forklift 20 to which the attachment 30 is attached is moved to insert the claw portion 46 of the attachment 30 into the insertion hole 13 of the carriage 11. The fork 23 is moved upward to engage the protrusion 54 of the arm 41 with the hook 16 of the carriage 11. Thereby, the attachment 30 is connected to the carriage 11. When the fork 23 is moved up in this state, the rear end portion of the carriage 11 rises, and the carriage 11 is in a state where only the wheels 12 at the front end portion are in contact with the ground. The load on the rear end side of the carriage 11 is supported by the claw portion 46 and the protrusion 54 of the arm 41. Under this state, when the forklift 20 is driven forward, the carriage 11 is pushed by the forklift 20 and is brought close to the car carrier.

  As shown in FIG. 8, a ramp, that is, a ramp way 63, is stretched between the loading / unloading port 62 and the wharf of the main deck 61 of the car carrier. As shown in FIG. 8A, when the carriage 11 is pushed by the forklift 20 and starts traveling along the ramp surface of the ramp way 63, the ramp way 63 is inclined upward in the climbing direction. The fork 23 is driven up along the mast 22 so that the carriage 11 is substantially horizontal even when the rampway 63 is traveling. As a result, the rear end portion of the carriage 11 is raised and the carriage 11 is held almost horizontally via the arm 41.

  Therefore, for example, assuming that the height Hv of the carry-in / out entrance 62 is 5.1 m, the height of the railway vehicle 10 is 4 m, and the height H of the railway vehicle including the carriage 11 is 4.85 m. The railway vehicle 10 can be loaded by easily passing through the carry-in / out port 62 with 10 being in a horizontal state. The railway vehicle 10 carried into the hull is transported by a dedicated car ship while being mounted on the carriage 11.

  When the railway vehicle 10 loaded on an automobile dedicated ship is unloaded at a wharf at a port of call, it is transported to the outside by a forklift at the port of call. The same thing as the attachment 30 mentioned above is prepared also for the forklift of a port of call, and the nail | claw part 46 of the attachment 30 is inserted in the insertion hole 13 of the trolley | bogie 11. FIG. At the time of unloading, the claw portion 46 of the attachment 30 is inserted into the insertion hole 13, and the rear end portion of the carriage 11 is driven up and pulled by the forklift 20. At this time, as shown in FIG. 7, by hooking the chain 58 on the chain connecting member 55, the claw portion 46 is prevented from being detached from the cart 11 during the towing of the cart 11.

  When the carriage 11 is transported from the carry-in / out entrance 62 to the wharf at the port of call via the ramp way 63, when the forklift 20 starts moving backward on the ramp way 63, the rear end of the carriage 11 is raised by the fork 23. As a result, the carriage 11 is in a substantially horizontal state, and the carriage 11 is transported through the ramp way 63 without the leading end of the long cargo that becomes the rear end when passing through the carry-out entrance contacting the ceiling surface of the entry / exit 62. The After the forklift 20 passes the ramp way 63, the fork 23 is driven downward, and the carriage 11 becomes parallel to the flat ground of the wharf.

  FIG. 8B is a side view showing a case where the trolley 11 is transported to the car carrier via the ramp way by the tow vehicle 65 as a conventional example. The tow vehicle 65 includes an arm 66 inserted into the carriage 11 and has a function of moving the coupler connected to the arm 66 up and down, but the lift is not so large as to keep the carriage horizontal. For this reason, when the carriage 11 is pushed by the towing vehicle 65 and travels on the ramp way 63, the railway vehicle 10 is conveyed in a state parallel to the ramp way 63 and is carried into the carry-in / out entrance 62 in an inclined state.

  For this reason, assuming that the height Hv of the carry-in / out entrance 62 and the height H of the railway vehicle 10 including the carriage 11 are the same as described above, the railway vehicle 10 is located behind the installation point of the wheels 12. The apparent height of the railway vehicle 10 from the floor surface of the main deck 61 at the carry-in / out entrance 62 is increased by an amount corresponding to the distance of the protruding portion and the inclination angle of the carriage 11 and the railway vehicle 10, The upper end corner portion 67 of the railway vehicle 10 comes into contact with the ceiling surface of the carry-in / out entrance 62. In this way, the trolley 11 is tilted in parallel with the ramp way 63 by the towing vehicle even though the height H of the railway vehicle 10 including the trolley 11 is lower than the height Hv of the carry-in / out entrance 62. If moved, the railway vehicle 10 comes into contact with the ceiling surface of the carry-in / out entrance 62. The same applies to the case where a long cargo other than the railway vehicle is transported by the carriage 11 as in the case where it is mounted not only on the railway vehicle 10 but also on a large number of utility pole carriages.

  On the other hand, when the attachment 30 is mounted on the fork 23 of the forklift 20, the forklift 20 can bring the railway vehicle 10 into a horizontal state and can transport the ramp, so If the length of the long cargo including the carriage is low, the long cargo can be carried in and out of the hull. As described above, when the end of the carriage 11 is moved up and down via the attachment 30 by using the forklift 20, the long cargo is held in a substantially horizontal state by the forklift 20, and the long cargo is surely received at the entrance / exit. 62 can be passed. At this time, the long cargo, that is, the carriage 11 only needs to be substantially horizontal, and if it is an angle that allows the carry-in / out entrance 62 to pass through, it is not necessary to strictly set the horizontal angle, and has a certain allowable angle. Yes.

  Long cargo can be loaded and unloaded without increasing the height of the loading / unloading port 62. Therefore, when designing a new car carrier, the height of the loading / unloading port of the hull needs to be excessively high. Efficient cargo transportation can be performed without reducing the amount of cargo that can be loaded on one hull.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, as described in Patent Document 1, the attachment 30 described above can also be used when a split-type carriage having a front transportation carriage and a rear transportation carriage is transported by a forklift.

DESCRIPTION OF SYMBOLS 10 Rail vehicle 11 Bogie 12 Wheel 13 Insertion hole 16 Hook 20 Forklift 23 Fork 30 Attachment 31 Base 32 Fork guide 33 Through-hole 36 Opening window part 37 Abutting surface 38, 38a Mounting hole 39 Bolt 41 Arm 42 Connection part 43 Projection part 44 Base portion 45 Bending portion 46 Claw portion 51 Coupler 54 Projection 55 Chain connecting member 58 Chain 61 Main deck 62 Loading / unloading port 67 Upper end corner portion

Claims (6)

A forklift attachment for moving up and down one end of a carriage on which a long cargo is mounted by a forklift,
A base detachably mounted on the fork of the forklift;
An arm that is swingably coupled to the base about a horizontal axis and is attached to one end of the carriage,
A forklift attachment that moves the fork up and down and moves the end of the cart up and down via the arm when transporting the cart along an inclined surface. The attachment for a forklift according to claim 1,
A forklift attachment in which the arm and the base are connected by a coupler so as to be swingable about a vertical axis and a horizontal axis. The forklift attachment according to claim 1 or 2,
The arm includes a base connected to the base, a bent portion protruding downward from a tip of the base, an end face of the carriage being abutted, a forward protrusion from a lower end portion of the bent portion, and an end of the carriage. A forklift attachment having a claw portion to be inserted. In the attachment for a forklift according to any one of claims 1 to 3,
The attachment for forklifts which provided the protrusion which the hook provided in the said cart engages in the said arm. In the attachment for forklifts according to any one of claims 1 to 4,
A forklift attachment, wherein a chain connecting member to which a chain attached to the carriage is connected is provided on the arm. In the attachment for forklifts according to any one of claims 1 to 5,
The base has two fork guides into which the two forks are inserted,
The fork guide is provided with an opening window portion that opens upward at a base end portion of the fork guide, and in which the fork is inserted into the fork guide, the opening window portion in which the base end portion of the fork is disposed,
The attachment for forklift which provided the attachment hole in which the stopper member engaged with the base end part of the said fork was provided in the base end part of the said fork guide.

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