JP6808522B2 - Forklift attachment and how to attach the forklift attachment to the fork - Google Patents

Description

The present invention relates to a forklift attachment to be attached to a fork of a forklift to convey an object to be transported, and a method of attaching the attachment.

As a conventional attachment for a forklift, for example, those described in Patent Document 1 below are known.

Japanese Unexamined Patent Publication No. 2003-03788

This is composed of a pair of pipe-shaped square members that extend linearly in the front-rear direction and are arranged apart by a certain distance in the width direction, and the horizontally extending blade portions of the pair of forks can be inserted from the rear end openings. The base, the platen fixed to the upper surface of the base to support the object to be transported from below, the bracket fixed to the lateral outer wall of each base and extending rearward, and the brackets approaching each other from the rear end of each bracket. It is provided with a regulating member extending inward in the width direction. In this case, when the attachment is placed on the ground, the fork blade portion is avoided while avoiding the restricting member by moving the pair of forks having an L shape forward by moving the forklift. Is inserted into each fork pocket in the base, and then the fork is laterally moved so as to separate the fork, so that the lower end of the vertically extending shank portion of the fork is placed between the regulating member and the rear end of the platen (base). It is allowed to penetrate so that the forklift attachment is attached to the fork.

However, in such a conventional forklift attachment, if there is a deviation between the traveling direction of the forklift (extending direction of the blade portion of the fork) and the extending direction of the fork pocket in the base, the fork When the entire blade portion is inserted into the fork pocket, the blade portion may scratch the inner side wall of the base (pipe-shaped square member), or the base may be pushed by the fork and slide on the ground. , There was a problem that the bottom surface of the base was scratched. In order to solve such a problem, it is necessary to match the traveling direction of the forklift and the extending direction of the fork pocket with high accuracy, but this is a difficult task for the operator and the work efficiency is reduced. It was. Further, since the width of each fork pocket needs to be at least twice the width of the blade portion, the width of the forklift attachment is at least four times the width of the blade portion, and as a result, the overall structure after mounting becomes large. There is also a problem that it becomes difficult to carry the object to be transported into a narrow space.

An object of the present invention is to provide an attachment for a forklift and a method for attaching the attachment for a forklift to a fork, which can suppress scratches and improve work efficiency while being compact.

The first purpose of this is to provide a base having fitting grooves extending linearly in the front-rear direction and extending in the longitudinal direction on both side surfaces, and a support provided on the base to support the object to be transported. A extending body extending rearward from the rear end of the base and overlapping the base between the fitting grooves in the front-rear direction, and a width direction provided at the rear end of the extending body and perpendicular to the longitudinal direction. The fork is provided with stoppers having regulation portions formed on both outer sides in the width direction from the side surface of the fitting groove, and the pair of forklifts having an L shape are laterally moved so as to approach each other. For forklift trucks in which the horizontally extending blade portions of the forklift are allowed to enter the fitting grooves, and the lower end portion of the vertically extending shank portion of the fork is inserted between the regulating portion of the stopper and the rear end of the base. It can be achieved by attachments.

Second, a base having fitting grooves extending linearly in the front-rear direction and extending in the longitudinal direction on both side surfaces, a support provided on the base to support an object to be transported, and a rear end of the base. An extending body extending rearward from the fitting groove and overlapping the base between the fitting grooves in the front-rear direction, and an extending body provided at the rear end portion of the extending body, extending in a width direction orthogonal to the longitudinal direction and fitting. A pair of forklifts having an L-shape are moved laterally so as to approach each other with respect to a forklift attachment provided with stoppers having regulating portions formed on both outer sides in the width direction from the side surface of the groove. For forklift trucks in which the horizontally extending blade portions of the forklift are allowed to enter the fitting grooves, and the lower end portion of the vertically extending shank portion of the fork is inserted between the regulating portion of the stopper and the rear end of the base. This can be achieved by the method of attaching the attachment to the fork.

In the present invention, the forks are laterally moved so as to approach each other so that the blade portions of the forks enter the fitting grooves formed on both side surfaces of the base, so that the blade portions of the forks extend. Even if there is a gap between the direction and the extending direction of the forklift attachment (base), it is possible to finish the mounting work if both blades are invading the fitting groove together, and for forklift. Scratches on the attachment are effectively suppressed. Moreover, even if there is a deviation in the extending direction as described above, it is possible to finish the mounting work if both blades of the fork can be penetrated into the fitting groove with high accuracy. There is no need to fine-tune the position of the forklift to match, resulting in a significant improvement in work efficiency. Further, since the overall width after mounting is about twice the width of the blade portion of the fork plus the distance between the blade portions, the shape after mounting can be miniaturized. Further, although the structure is simple, even if the forks try to separate from each other due to an operator's erroneous operation, electrical or hydraulic system failure, etc., the fork blade portion comes into contact with the blocking portion of the blocking body, so that the fork can be separated and moved. It is regulated, which ensures that the object to be transported is prevented from falling together with the forklift attachment.

Further, if the configuration is as described in claim 2 , large tires can be transported without any problem. Further, if the configuration is as described in claim 3 , further miniaturization can be achieved while suppressing local deformation of the bead portion. Further, if it is configured as described in claim 4 , the lower end portion of the shank portion can be easily inserted between the regulating portion of the stopper and the rear end of the base. Further, if the configuration is as described in claim 5 , the operator can easily visually confirm the ascending / descending state of the blocking body, and the safety is improved.

It is a schematic perspective view of the forklift which shows Embodiment 1 of this invention. It is a partially broken perspective view which shows the rear end part of an attachment. It is a side view explaining the support state of the object to be transported (tire). It is a top view explaining the support state of the object to be conveyed (tire). It is a rear view explaining the support state of the object to be transported (tire). It is a partially broken rear view when the attachment is placed on the ground.

Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 11 denotes a forklift, which is provided on a vehicle 12 that travels by operating an operating device arranged in the cockpit and a front portion of the vehicle 12, and is provided at the front of the vehicle 12 when the forklift 11 travels. It is equipped with a mast device 13 capable of transporting the object to be transported while supporting it. The mast device 13 has a pair of fixed masts 14 that are separated in the left-right direction (width direction) orthogonal to the front-rear direction and extend in the vertical direction orthogonal to both the front-rear direction and the left-right direction, and these fixed masts 14 have. Movable masts 15 extending in parallel with the fixed mast 14 are slidably supported. Then, these movable masts 15 can be integrally moved up and down while being guided by the fixed mast 14 by an elevating mechanism such as an elevating cylinder (not shown). Reference numeral 16 denotes a carriage that is supported by the movable mast 15 so as to be able to move up and down and extends in the left-right direction, and one end of a pair of lift chains 17 is connected to the carriage 16.

The central portion of the lift chain 17 is hung around a sprocket 18 rotatably supported by the upper end portion of each movable mast 15, and the other end portions are connected to the front end portion of the vehicle 12. As a result, when the movable mast 15 moves up and down along the fixed mast 14 by the operation of the elevating mechanism, the carriage 16 moves up and down in the same direction by a distance twice the elevating distance of the movable mast 15 while being guided by the movable mast 15. .. Reference numeral 21 denotes a pair of forks detachably connected to the carriage 16, and the tips of the piston rods 23 of the pair of fluid cylinders 22 extending in the left-right direction with the head side connected to the carriage 16 are connected to each of these forks. Has been done. As a result, when the fluid cylinder 22 as the drive mechanism operates and the piston rod 23 protrudes or retracts, the forks 21 move in opposite directions along the carriage 16 to approach and separate from each other, thereby causing the forks 21 to approach and separate from each other. The interval between them is adjusted. The fixed mast 14, the movable mast 15, the carriage 16, the lift chain 17, the sprocket 18, the fork 21, and the fluid cylinder 22 as a whole constitute the above-mentioned mast device 13. Each fork 21 is composed of a thick shank portion 21a extending in the vertical direction and a blade portion 21b extending horizontally from the lower end of the shank portion 21a toward the front and becoming thinner toward the front. It has an L-shape that is bent at a right angle.

In FIGS. 2 to 6, 26 is a fork when transporting a transported object having a complicated shape such as a pneumatic tire, an automobile wheel, an automobile engine, etc., which is difficult to convey only by the fork 21, here, a large tire T is conveyed. It is an attachment for a forklift that facilitates the transportation of the object to be transported by being attached to 21, and the attachment 26 has a base 27 extending linearly in the front-rear direction. Here, the base 27 has a horizontal strip-shaped lower plate 28 extending in the front-rear direction, and the lower plate 28 is equidistant from the center in the width direction to the outside in the width direction at the center of the upper surface of the lower plate 28. A pair of strip-shaped vertical plates 29 that are installed and extend along the lower plate 28 are vertically fixed. Further, a strip-shaped upper plate 30 parallel to the lower plate 28 is fixed to the upper end of the vertical plate 29. The lower plate 28, the vertical plate 29, and the upper plate 30 described above constitute the base 27 as a whole, and the lower plate 28 is formed on both the left and right side surfaces (both outer surfaces in the width direction) of the base 27 as described above. By combining the vertical plate 29 and the upper plate 30, the fitting groove 31 which extends in the longitudinal direction (front-back direction) and whose top surface 31a (lower surface of the upper plate 30) is horizontal and whose cross section is rectangular or trapezoidal is rectangular. Each is formed.

Reference numeral 34 denotes a support plate having an arc-shaped cross section that is bent upward in a convex shape. The support plate 34 extends in the front-rear direction along the base 27, and both ends in the width direction thereof are upper surfaces of both ends in the width direction of the upper plate 30. It is stuck to. Reference numeral 35 denotes a coating sheet that covers the entire support plate 34 from the outside. The coating sheet 35 is made of, for example, vulcanized rubber having a certain thickness and is fixed to the support plate 34 at a plurality of locations. There is. Reference numeral 36 denotes an arc-shaped closing plate that closes the rear opening of the support plate 34 and the covering sheet 35, and the lower end of the closing plate 36 is fixed to the upper surface of the rear end of the upper plate 30. At the central portion in the width direction of the closing plate 36, two guide pins 37 projecting rearward are fixed to the rear surface separately from each other in the vertical direction, and the rear ends of the guide pins 37 are parallel to the closing plate 36. An extending rectangular guide plate 38 is fixed, and as a result, a gap having a constant width is formed between the closing plate 36 and the guide plate 38. The support plate 34, the covering sheet 35, the closing plate 36, the guide pin 37, and the guide plate 38 described above are provided on the base 27 as a whole to support the tire T when the tire T as an object to be transported is conveyed. It constitutes a body 39, and the support 39 is formed in the shape of a semi-cylindrical cross-section that is convex upward. In this embodiment, since the tire T is conveyed, the support 39 has the above-described structure, but when the object to be conveyed is different from the tire T, the structure is adapted to the object to be conveyed.

In this embodiment, the object to be transported is composed of a large tire T as described above, but when such a tire T is transported, the attachment 26 is inserted into the vertically placed tire T. After that, the attachment 26 is raised so that the bead portion B of the tire T is supported from below by the support 39. In this way, even if the tire T is large, it can be conveyed without any problem. When the object to be transported is a large tire T, the radius of curvature R on the upper surface of the support 39 shall be within the range of 0.6 to 0.9 times the radius of curvature S on the inner circumference of the bead portion B of the tire T. Is preferable. The reason is that if the radius of curvature R is less than 0.6 times the radius of curvature S, the curved upper surface of the support 39 and the inner circumference of the bead portion B come into contact with each other in a narrow range, and the bead portion B is contacted. Local deformation may occur. On the other hand, if it exceeds 0.9 times, the attachment 26 becomes large. However, if it is within the above range, the attachment 26 can be suppressed while suppressing the local deformation of the bead portion B. This is because the size can be further reduced.

42 is an extension body extending rearward from the rear end of the base 27 by being continuous (integrally formed) with the rear end of the base 27 (vertical plate 29), and this extension body 42 is a vertical plate. By extending linearly on the extension line of 29, it overlaps the base 27 located between the fitting grooves 31, here, the vertical plate 29 in the front-rear direction. In the present invention, the extending body is a connecting plate that connects the rear ends of the vertical plates 29, and one strip extending from the center of the connecting plates in the left-right direction (width direction) toward the rear. The vertical plate and the extending body may be separated from each other, and the extending body may be detachably attached to the vertical plate. Reference numeral 43 denotes a horizontal plate-shaped stopper provided at the rear end portion of the extending body 42, and the stopper 43 extends in the width direction orthogonal to the longitudinal direction of the base 27, and the central portion in the width direction extends. It is fixed to the upper surface of the body 42. Further, at both ends in the width direction of the stopper 43, regulation portions 43a projecting from the extending body 42 (vertical plate 29) to both outer sides in the width direction (left-right direction) are formed, and as a result, these regulation portions 43a are formed. Is located on both outer sides in the width direction from the side surface 31b (outer surface of the vertical plate 29) of the fitting groove 31. In this embodiment, the stopper 43 is composed of an integral body including both regulating portions 43a, but in the present invention, a pair of plates extending from the rear end portion of the extending body 42 toward both outer sides in the width direction. It may be composed of a body, or the stopper and the regulating portion may be installed slightly above the extension line of the fitting hole.

When such an attachment 26 is attached to the fork 21 of the forklift 11, the forklift 11 is moved to immediately after the attachment 26, and the extension direction of the attachment 26 and the extension of the blade portion 21b of the fork 21 are extended. Match the direction. At this time, the attachment 26 is positioned between the pair of forks 21, the height of the blade portion 21b from the ground G and the height of the fitting groove 31 from the ground G are matched, and further, the shank portion 21a of the fork 21 Align the front-back position with the front-back position of the space located between the base 27, the support 39 and the stopper 43. In this state, a pair of forks 21 having an L shape are laterally moved so as to approach each other by the operation of the fluid cylinder 22, and the horizontally extending blade portions 21b of the forks 21 are respectively moved into the fitting groove 31 from the outer opening in the width direction. Invade.

The attachment 26 is attached to the forklift 11 by laterally moving the forks 21 so as to approach each other in this way and allowing the blade portions 21b of the forks 21 to enter the fitting grooves 31 formed on both side surfaces of the base 27. Therefore, even if there is a gap between the extending direction of the blade portion 21b of the fork 21 and the extending direction of the attachment 26 (base 27), both blade portions 21b are both in the fitting groove 31. If it has invaded, it is possible to end the attachment work of the attachment 26, and it is possible to effectively suppress the damage on the attachment 26. Moreover, even if there is a deviation between the blade portions 21b and the attachment 26 in the extending direction, the mounting work can be completed if both blade portions 21b of the fork 21 can be penetrated into the fitting groove 31. , It is not necessary to fine-tune the position of the forklift 11 in order to match the directions with high accuracy, and as a result, the work efficiency is greatly improved. Further, since the overall width after mounting is about twice the width of the blade portion 21b of the fork 21 plus the distance between the blade portions 21b, the shape after mounting can be easily miniaturized. ..

Further, as described above, when the blade portion 21b enters the fitting groove 31 and the attachment 26 is attached to the fork 21, the lower end portion of the shank portion 21a extending vertically of the fork 21 becomes the regulating portion 43a of the stopper 43. It invades between the rear end of the base 27. As a result, even if the attachment 26 is displaced forward while being attached to the fork 21 and tries to separate from the fork 21, the regulating portion 43a of the stopper 43 comes into contact with the rear surface of the shank portion 21a, and the attachment 26 comes into contact with the fork 21. Prevent the situation from getting out of. Then, as described above, if the stopper 43 provided with the regulating portions 43a located on both outer sides in the width direction from the side surface 31b of the fitting groove 31 is fixed to the rear end portion of the extending body 42, the distance between the blade portions 21b is fixed. The forklift 11 is moved forward so as to approach the attachment 26 in a state where the forklift 11 is substantially matched to the distance between the side surfaces 31b of the fitting groove 31, and the blade portion 21b is attempted to enter the fitting groove 31 through the rear end opening. However, since the blade portion 21b abuts on the regulating portion 43a of the stopper 43, the intrusion is hindered and the attachment 26 cannot be attached to the fork 21 of the forklift 11. Further, in this embodiment, the front surface of the restricting portion 43a of the stopper 43 is tilted toward the rear side toward both outer ends in the width direction. In this way, when the lower end of the shank portion 21a of the fork 21 is inserted between the regulating portion 43a of the stopper 43 and the rear end of the base 27 as described above, the front surface of the inclined regulating portion 43a guides. In addition to being able to facilitate the above-mentioned intrusion, the operator can easily grasp the position of the fork 21 from the driver's seat, and the mounting work becomes easy.

Reference numeral 47 denotes a plate-shaped blocking body arranged behind the support position of the tire T, specifically sandwiched between the closing plate 36 and the guide plate 38, and the blocking body 47 is a vertical blocking body extending in the vertical direction. The vertical portion 47a has a portion 47a, and the guide pin 37 is inserted into the vertical central portion of the vertical portion 47a to form an elongated guide hole 47b extending in the vertical direction. When the guide pins 37 separated in the vertical direction are inserted into the guide holes 47b extending in the vertical direction in this way, the blocking body 47 can move up and down while being guided by the guide pins 37. Here, since the closing plate 36, the guide pin 37, and the guide plate 38 described above form a part of the support 39 as described above, the blocking body 47 (vertical portion 47a) can be moved up and down to the support 39. It will be supported. In the present invention, the blocking body (vertical portion) may be supported by a support or an extending body so as to be able to move up and down. Further, the blocking body 47 is integrally formed with the vertical portion 47a, has a pair of horizontal horizontal portions 47c extending from the upper end portion of the vertical portion 47a toward both outer sides in the width direction, and the tips of the horizontal portions 47c ( A blocking portion 47d extending downward from the horizontal portion 47c is integrally formed at both outer ends in the width direction).

Here, when the blade portion 21b is inserted into the attachment 26 placed on the ground G and the attachment 26 is attached to the fork 21, the base 27, the support 39, and the extending body 42 are raised by the ascent of the fork 21. When is integrally lifted, the lower end of the blocking body 47 gradually protrudes downward from the lower end (lower surface) of the base 27 (lower plate 28). Then, as shown in FIG. 5, when the upper surface of the blade portion 21b comes into contact with the lower surface of the horizontal portion 47c of the blocking body 47, the lower end portion of the blocking body 47 protrudes from the lower end of the base 27 by the amount of protrusion M. This protrusion amount M is larger than the vertical distance N from the lower surface of the horizontal portion 47c to the lower end of the blocking portion 47d. On the other hand, as shown in FIG. 6, when the attachment 26 is placed on the ground G, the blocking body 47 is pushed by the ground G and rises, so that the lower end of the blocking portion 47d is the top of the fitting groove 31. It moves above the surface 31a, which allows lateral movement of the fork 21 to enter and leave the fitting groove 31 of the blade portion 21b. Further, the distance L from the outer surface in the width direction of the vertical portion 47a to the inner surface in the width direction of the blocking portion 47d is the sum of the width of the blade portion 21b of the fork 21 and the wall thickness of the extending body 42 (vertical plate 29). As a result, the attachment 26 is lifted by the fork 21 and is located on the same plane as the upper surface of the blade portion 21b (the top surface 31a of the fitting groove 31 and the lower surface of the upper plate 28). When the blocking portion 47d comes into contact with the horizontal portion 47c of the blocking body 47, the blocking portion 47d is located outside the width direction of the blade portion 21b, and as a result, even if the blade portion 21b tries to move outward in the width direction. , The movement of the blade portion 21b is blocked by these blocking portions 47d, and the detachment from the fitting groove 31 is prevented.

As a result, even if the forks 21 try to separate from each other due to an operator's erroneous operation, electrical or hydraulic system failure, etc. during transportation of the object to be transported (tire T), the blocking portion 47d of the blocking body 47 has a simple structure. Since the blade portion 21b of the fork 21 comes into contact with the fork 21, the separation movement of the fork 21 is restricted, whereby the situation in which the tire T being conveyed falls from the fork 21 together with the attachment 26 is surely prevented. In the present invention, when the base, the support, and the extending body are lifted by the fork, any of the base and the support is brought into contact with the blocking body, so that the blocking body is moved to the outside in the width direction of the blade portion. It may be positioned. Further, when the attachment 26 is lifted by the fork 21 as described above, the lower end portion of the blocking body 47 protrudes downward from the lower end of the base 27, but paint or the like is applied to the portion of the blocking body 47 protruding from the lower end of the base 27. By providing the colored portion 48, the operator can easily visually confirm the ascending / descending state of the blocking body 47, and the work safety is improved. Further, in this embodiment, the upper end portion of the blocking body 47, here, the vertical portion 47a and the horizontal portion 47c are also provided with the colored portion 49 colored by paint or the like, and the elevating state of the blocking body 47 is controlled by the operator. The safety is improved by making it easy to confirm visually. In the present invention, only the upper end portion or the lower end portion of the blocking body may be colored, and in short, at least one of the upper end portion and the lower end portion of the blocking body is colored. do it.

Next, the operation of the first embodiment will be described.
When the attachment 26 having the base 27, the support 39, the extending body 42, the stopper 43, and the blocking body 47 as described above is attached to the forklift 11, immediately after the attachment 26 placed on the ground G. While moving the forklift 11 to, the extending direction of the attachment 26 and the extending direction of the blade portion 21b are matched. At this time, the pair of blade portions 21b are positioned on both the left-right direction (width direction) of the attachment 26, the height positions of the blade portion 21b and the fitting groove 31 from the ground G are matched, and the shank portion is further provided. The front-back position of 21a is matched with the front-back position of the space between the base 27, the support 39 and the stopper 43. Further, at this time, since the blocking body 47 is pushed by the ground G and rises with respect to the support 39, the lower end of the blocking portion 47d moves upward from the top surface 31a of the fitting groove 31, thereby causing. The widthwise outer opening of the fitting groove 31 is opened.

By operating the fluid cylinder 22 in this state, the forks 21 are laterally moved so as to approach each other, the blade portions 21b of the forks 21 are allowed to enter the fitting grooves 31 from the outer openings, and the forks 21 are vertical. The lower end of the shank portion 21a extending to is inserted between the regulation portion 43a of the stopper 43 and the rear end of the base 27. Here, if both blade portions 21b penetrate into the fitting groove 31, there is a gap between the extending direction of the blade portion 21b of the fork 21 and the extending direction of the attachment 26 (base 27). Even though the attachment 26 is attached to the fork 21, in this embodiment, until the blade portion 21b and the side surface 31b of the fitting groove 31 are parallel (the blade portion 21b abuts on the side surface 31b in the entire range, and the blade The vertical plates 29 are brought close to each other (until they are sandwiched from both sides by the portion 21b), and the above-mentioned deviation in the extending direction is corrected without a large slide on the ground G.

Next, after operating the elevating mechanism of the forklift 11 to integrally raise the carriage 16, the fork 21, and the attachment 26, the forklift 11 is moved to the storage position of the tire T, and is stored in the storage position. Insert the attachment 26 into the placed tire T. After that, the fork 21 and the attachment 26 are raised to support the bead portion B of the tire T from below by the support 39. Next, the forklift 11 is moved to convey the tire T to the transfer position. At this time, as described above, the lower end of the shank portion 21a is between the regulating portion 43a of the stopper 43 and the rear end of the base 27. Since the attachment 26 and the tire T are attached to the fork 21, even if the attachment 26 and the tire T are displaced forward and try to separate from the fork 21, the regulating portion 43a of the stopper 43 comes into contact with the rear surface of the shank portion 21a. , The situation where the attachment 26 and the tire T fall off from the fork 21 is prevented. Further, the attachment 26 (base 27, support 39, extending body 42) is lifted from the ground G by the fork 21 as described above, and the blade portion 21b is attached to the horizontal portion 47c of the blocking body 47 that continues to be in contact with the ground G. When they come into contact with each other, the blocking portion 47d is located outside the blade portion 21b in the width direction, and these blocking portions 47d prevent the blade portion 21b from being separated from the fitting groove 31 outward in the width direction. As a result, the situation in which the tire T being conveyed falls off from the fork 21 together with the attachment 26 is surely prevented.

The present invention can be applied to the industrial field of forklift attachments mounted on forklift forks to convey objects to be transported.

11 ... Forklift 21 ... Fork
21a ... Shank part 21b ... Blade part
27… Base 31… Fitting groove
31a ... top surface 31b ... side surface
39 ... Support 42 ... Extension
43 ... Stopper 43a ... Regulator
47 ... Block 47a ... Vertical
47c ... Horizontal part 47d ... Blocking part T ... Object to be transported B ... Bead part G ... Ground

Claims (6)

A base having fitting grooves extending linearly in the front-rear direction and extending in the longitudinal direction on both side surfaces, a support provided on the base to support an object to be transported, and a support extending from the rear end of the base toward the rear. And an extending body that extends in the front-rear direction and overlaps the base between the fitting grooves in the front-rear direction, and is provided at the rear end of the extending body and extends in the width direction orthogonal to the longitudinal direction and the side surface of the fitting groove. Stoppers with regulation parts formed on both outer sides in the width direction ,
Behind the support position of the object to be transported, a vertical portion that is vertically supported by any of a base, a support, and an extending body and extends in the vertical direction, and a horizontal portion that extends outward in the width direction from the upper end of the vertical portion. A blocking body having a pair of horizontal portions extending downwardly and a blocking portion extending downward from the tip of these horizontal portions.
By laterally moving a pair of forks exhibiting an L-shape of a forklift so as to approach each other, the horizontally extending blade portions of the forks are allowed to enter the fitting grooves, and the vertically extending shanks of the forks are provided. The lower end of the part is made to enter between the regulating part of the stopper and the rear end of the base, and when the forklift attachment is placed on the ground, it is pushed by the ground and the blocking body rises. The lower end of the blocking portion is positioned above the top surface of the fitting groove to allow the fork to enter the fitting groove of the blade portion, while the fork lifts the base and the extending body to lift the blade portion and the base. When any of the supports comes into contact with the horizontal portion of the blocking body, the blocking portion is located outside the width direction of the blade portion so that the blocking portion prevents the blade portion from coming off from the fitting groove. forklift attachment, characterized in that it was. By forming the support into a semi-cylindrical shape with an arc-shaped cross section that is convex upward, the object to be transported is composed of a tire, the forklift attachment is inserted into the vertically installed tire, and then the support is raised. The forklift attachment according to claim 1, wherein the bead portion of the tire is supported from below by a support. The forklift attachment according to claim 2, wherein the radius of curvature on the upper surface of the support is within the range of 0.6 to 0.9 times the radius of curvature on the inner circumference of the bead portion. The forklift attachment according to any one of claims 1 to 3, wherein the front surface of the regulating portion of the stopper is inclined so as to be on the rear side toward both outer ends in the width direction. The forklift attachment according to any one of claims 1 to 4, wherein at least one of the upper end portion and the lower end portion of the blocking body is colored. A base having fitting grooves extending linearly in the front-rear direction and extending in the longitudinal direction on both side surfaces, a support provided on the base to support an object to be transported, and a support extending from the rear end of the base toward the rear. And an extending body that extends in the front-rear direction and overlaps the base between the fitting grooves in the front-rear direction, and is provided at the rear end of the extending body and extends in the width direction orthogonal to the longitudinal direction and the side surface of the fitting groove. Stoppers with regulation parts formed on both outer sides in the width direction,
Behind the support position of the object to be transported, a vertical portion that is vertically supported by any of a base, a support, and an extending body and extends in the vertical direction, and a horizontal portion that extends outward in the width direction from the upper end of the vertical portion. A blocking body having a pair of horizontal portions extending downwardly and a blocking portion extending downward from the tip of these horizontal portions.
By laterally moving a pair of forks exhibiting an L-shape of a forklift to a forklift attachment provided with a forklift so as to approach each other, the horizontally extending blade portions of the forks are allowed to enter the fitting groove, and the Make sure that the lower end of the vertically extending shank of the fork penetrates between the regulating part of the stopper and the rear end of the base.
When the forklift attachment is placed on the ground, it is pushed by the ground and the blocking body rises, so that the lower end of the blocking portion is positioned above the top surface of the fitting groove and the blade portion of the fork While allowing entry into the fitting groove, when the base and extending body are lifted by the fork and any of the blade portion, the base, or the support abuts on the horizontal portion of the blocking body, the blocking portion causes the blade portion. A method of attaching a forklift attachment to a fork, which is located outside in the width direction of the forklift so as to prevent the blade portion from being detached from the fitting groove by these blocking portions.

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