JP2019182643A - Hanging tool and transportation method of heavy load - Google Patents

Abstract

To solve a problem in which a stability of a transportation of a heavy load by a fork lift using a hanging tool may be decreased.SOLUTION: A hanging tool body 10 comprises main rod part 11, 12 extending in front oblique upward from a base end part 11a, 12a situated at a position or a height nearer to the cross member 2b of a lower side than the cross member 2a of an upper side in a state of being mounted to a pair of cross members 2a, 2b via more than 2 fixtures 21-23. When the hanging tool body 10 is mounted to the pair of cross members 2a, 2b via more than 2 fixtures 21-23, some fixtures 21, 22 impart pressing force toward a vehicle part 1a of a fork lift 1 to the cross member 2b of the lower side and other fixture 23 imparts pressing or pulling force in a direction away from the vehicle part 1a of the fork lift 1 to the cross member 2a to prevent the main rod part 11, 12 from pivoting about the base end part 11a, 12a so as to be away from a lifting part 2.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a hanging tool and a method for transporting a heavy object.

  Patent Document 1 discloses an auxiliary tool for a forklift. A base is fixed to the auxiliary tool body sideways (7th to 8th lines from the second column). A secondary hook is inserted freely into the base. Further, the fork of the forklift is inserted into the fork insertion hole of the auxiliary tool body.

Japanese Utility Model Publication No. 54-34934

  When the size of a heavy object to be transported increases, interference between the heavy object and a forklift or a lifting tool attached to the forklift occurs. In such a case, it is necessary to give up using a forklift and arrange a larger crane vehicle, which increases the transportation cost. In patent document 1, it can respond also to conveyance of a larger sized heavy load by using the base rod extended in a horizontal direction, and also using the extension auxiliary rod. However, larger-sized heavy objects often have a larger weight, and there is a concern that the stability of transportation by a forklift is reduced.

  A hanging tool according to an aspect of the present disclosure is a hanging tool that can be lifted and lowered together with a lifting part of a forklift, and is hung from a lifting tool body and at least two cross members arranged vertically in the lifting part. Two or more fixtures for attaching the fixture body are provided. The suspension body is attached to at least two cross members via two or more attachments, from the base end portion at a position or height closer to the lower cross member than the upper cross member. At least one main hook portion extending obliquely upward and forward is provided. When a suspension body is attached to at least two cross members via two or more attachments, or when a heavy object is suspended by the suspension, a certain attachment is Force the material against the vehicle part of the forklift, and another fixture is applied to the upper crosspiece to prevent the main collar from pivoting with respect to the proximal end away from the elevator. On the other hand, a pushing or pulling force is given in a direction away from the vehicle portion of the forklift.

  In some embodiments, the hanger body is attached to at least two cross members via two or more attachments, and the lower cross member along the extending direction of the main collar portion. And a secondary flange extending from the base end located at a position away from the upper end toward the upper cross member. A secondary collar may be pivotally provided.

  In some embodiments, the other fixture has an upper end pivotally attached to the attachment end of the secondary collar, and the hanger body is attached to at least two cross members via two or more fixtures. When installed, the upper end is arranged at a higher position than the upper cross member.

  In some embodiments, the hanger body includes a bifurcated frame with at least three hooks including at least two main hooks and at least one secondary hook. In some embodiments, the collar includes a mounting portion that can be detachably attached to the mounting tool. The attachment portion may be located at or near the end of the collar portion.

  In some embodiments, an extension rod can be disposed and fixed on the upper surface of the frame, and a ring portion or a hole for hanging heavy objects is provided at the tip of the extension rod. In some embodiments, a certain fixture has a shaft support portion that supports a shaft portion provided at or near the end of the main collar portion.

  In some embodiments, the separate fixture is separated from the vehicle portion of the forklift with respect to the upper cross member to prevent the main collar from pivoting with respect to the proximal portion away from the elevator. As an alternative to applying a pushing or pulling force in the direction, a force that pushes or pulls the upper cross member in a direction away from the vehicle part of the forklift to prevent the main saddle part from moving away from the lifting part. is there. The two or more attachments include first and second forks, a chain member for connecting the intermediate member between the base end portion and the tip end portion of the main collar portion and the upper cross member.

  In some embodiments, the hanger body further includes a base portion on which at least one main hook portion is provided so as to be adjustable in angle. The base portion includes first and second insertion portions into which the respective fork claws of the first and second forks are individually inserted, a shaft support portion that pivotally supports the base end portion of the main collar portion, and an integral or separate body with the shaft support portion. And an intermediate support portion for supporting the intermediate portion of the main collar portion. The intermediate support portion is configured to support the main collar portion at two or more different angles. In some cases, an intermediate portion of the main collar portion is provided with a ring portion for connection to the upper cross member via the chain member.

  In some embodiments, the two or more fixtures include three or more fixtures that are attached to the cross member without screw and bolt fastening.

  According to another aspect of the present disclosure, a method for transporting a heavy article includes a step of attaching a suspension body to a pair of cross members that are spaced apart in the vertical direction in a lift unit of a forklift using two or more attachments. The two or more fixtures include three or more fixtures that are attached to the cross member without depending on screw / bolt fastening, and are suspended from the suspension body according to the process and the raising or lowering of the lifting / lowering part of the forklift. A step of moving the weighted material up and down. The hanger body is forward of a base end located at a position or height closer to the lower cross member than the upper cross member in a state where the hanger body is attached to the pair of cross members via two or more attachments. At least one main flange extending obliquely upward is provided. When a suspension body is attached to a pair of cross members via two or more attachments, or when a heavy object is suspended by a suspension device, a certain attachment device is attached to the lower cross member. In contrast, a pressing force is applied to the forklift vehicle part, and another fixture pushes the upper cross member in a direction away from the forklift vehicle part in order to prevent the main saddle part from being separated from the lifting part. Or give a pulling force.

  According to one aspect of the present disclosure, it is facilitated to stably transport a heavy object having a larger weight.

It is a schematic side view of the lifting tool attached with respect to the forklift which concerns on 1 aspect of this indication, and the lifting tool main body is attached to a pair of horizontal member of the raising / lowering part of a forklift via three attachment tools. . It is a schematic side view of the hanger main body (except extension hooks) concerning one mode of this indication, and a sub hook part is provided pivotably with respect to a main hook part. It is a schematic top view of a hanger body (excluding an extension rod) according to an aspect of the present disclosure, and a pair of main hooks are provided in a tapered shape, and the auxiliary hooks are provided in the vicinity of the joints of the main hooks. A pivot point is provided. It is the schematic which shows the connection state of the attachment part of the main fixture part of a right-and-left outer side and the main part of a hanger body. The state of attachment of each fixture to the cross member is also shown. It is the schematic which shows the connection state of another attachment tool of a right-and-left center, and the attaching part of a sub collar part. The state of attachment of the fixture to the cross member is also shown. It is a schematic partial side view which shows the state by which the 1st extension hook was arrange | positioned and fixed on the frame upper surface of a hanger body. It is a schematic partial side view which shows the state by which the 2nd extension rod was inserted and fixed to the 1st extension rod. It is the schematic which shows another connection state of the attachment part of a fixture and a main collar part. It is the schematic which shows another connection state of the attaching part of an attachment tool and a sub collar part. It is a schematic partial top view of another hanging tool main body. It is a schematic side view of the lifting tool attached with respect to the forklift which concerns on another aspect of this indication, and the lifting tool main body is attached to a pair of cross member of the raising / lowering part of a forklift via three attachments. . It is a schematic partial upper surface schematic diagram of the hanger main body shown in FIG.

  Hereinafter, a non-limiting embodiment of the present invention and a plurality of features included or related thereto will be described with reference to FIGS. Those skilled in the art can combine the embodiments and / or the features, and can also understand the synergistic effect of the combination. Each feature is not only effective for the lifting device and / or the transportation method shown in the drawings, for example, but is a universal feature that can be applied to various other lifting devices and / or transportation methods (not shown). is there.

  In the present specification, the longitudinal direction is understood with reference to the forklift 1. The vertical direction is a direction orthogonal to the front-rear direction and along or parallel to the vertical direction. The left-right direction is a direction orthogonal to the front-rear direction and the up-down direction. The forklift 1 has a vehicle part 1a provided with two or more wheels, and is configured to be able to move up and down a lifting part 2 provided in front of the vehicle part 1a. The forklift 1 is typically available on the market and has mechanical elements such as a mast, a lift chain, and a lift cylinder. Although the raising / lowering part 2 is a frame-shaped member, for example, it should not be restricted to this. The elevating unit 2 is provided with a pair of upper and lower cross members 2a and 2b. The cross members 2a and 2b are arranged at different positions or heights in the vertical direction. The cross members 2a and 2b are, for example, fork rails on which a fork is hung, but are not limited thereto, and may be dedicated members for mounting fixtures 21 to 23 described later. It should be noted that the cross members 2a and 2b are not necessarily limited to those extending linearly in the horizontal direction (left and right direction).

  The lifting tool 3 can be lifted and lowered together with the lifting part 2 of the forklift 1. The lifting tool body 10 is attached to the lifting tool body 10 and at least two cross members 2 a and 2 b arranged vertically in the lifting part 2. It has two or more fixtures 21 to 23 for attachment. In the state where the hanger body 10 is attached to the pair of cross members 2a and 2b via two or more attachments 21 to 23, the hanger main body 10 is closer to the lower cross member 2b than the upper cross member 2a or It has at least one main collar portion 11, 12 extending obliquely upward and forward from the base end portions 11 a, 12 a at a height. In the present embodiment, the main collar portions 11 and 12 extend obliquely upward and forward from the base end portions 11a and 12a located at a position or height closer to the lower cross member 2b than to the upper cross member 2a. The center of gravity of the main hooks 11 and 12 of the hanger 3 is set closer to the forklift 1 so that the forklift 1 can receive the weight of a heavy object more stably. In general, the forklift 1 is positioned at a lower position or It is possible to receive the weight of the hanger body 10 and the weight of the heavy object to be transported at the height. Note that when the forklift 1 transports a heavy object using the lifting tool 3, the forklift 1 also sways according to the inertia of the heavy object. When it is demanded to carry more quickly, such a shake that the forklift 1 receives is not negligible.

  Furthermore, as will be well understood from the description below, when the suspension body 10 is attached to the pair of cross members 2a and 2b via two or more attachments 21 to 23, or in addition to this When a heavy object is suspended by the hoisting tool 3, one fixture 21, 22 gives a force to push the lower cross member 2 b toward the vehicle portion 1 a of the forklift 1, and another fixture 23 is In order to prevent the eaves parts 11 and 12 from moving away from the elevating part 2, or to prevent the main eaves parts 11 and 12 from pivoting with respect to the base end parts 11a and 12a away from the elevating part 2. A force to push or pull the cross member 2a away from the vehicle portion 1a of the forklift 1 is applied. The center of gravity of the main flanges 11 and 12 extending obliquely upward from the base end portions 11a and 12a at a position or height closer to the lower cross member 2b than the upper cross member 2a is set closer to the forklift 1, and The main flanges 11 and 12 are stably attached to the pair of cross members 2a and 2b via two or more attachments 21 to 23. When the hanger body 10 is attached to the pair of cross members 2a and 2b via the attachments 21 to 23, forces in opposite directions are applied to the different cross members 2a and 2b, and stable attachment is achieved. In addition or as an alternative, the use of screw and bolt fastening is avoided, and problems such as the occurrence of loose screw and bolt fastening due to vibration during transportation are avoided.

  Although the number of the main hooks 11 included in the hanging tool body 10 is advantageous, it is not necessarily limited thereto. For example, in the form shown in FIG. 1, as shown in FIG. 3, the hanger 3 has two main collar portions 11 and 12. On the other hand, in the form shown in FIGS. 10 and 11, the hanger body 10 has one main collar 11. The main flanges 11 and 12 can be made of a steel pipe having a rectangular cross section. Based on the welding of the steel pipe, the plurality of main flanges 11 and 12 can be firmly connected directly or via other steel materials. Although not necessarily limited to this, it is assumed that the main collar portions 11 and 12 are pivotally attached to the fixtures 21 and 22 (see particularly FIG. 4). This facilitates speeding up of attaching the fixtures 21 and 22 to the cross members 2a and 2b of the forklift 1 and subsequently attaching the main flanges 11 and 12 to the fixtures 21 and 22. In addition, the attachment of the fixtures 21 and 22 and the main collar portions 11 and 12 results in the lifting device body 10 pivoting forward. This can be prevented, for example, based on the connection between the auxiliary hook 13 and the fixture 23 shown in FIG. 5 based on the mechanical connection between the main hook and the upper cross member.

  The hanger body 10 can have a secondary hook 13 in addition to the main hooks 11 and 12 (see FIG. 1). In a state in which the hanging tool body 10 is attached to the pair of cross members 2a and 2b via the two or more attachments 21 to 23, the base end portion 13c of the auxiliary hook portion 13 is connected to the main hook portions 11 and 12. It is in a position spaced apart from the lower cross member 2b along the extending direction, and the auxiliary flange 13 extends from the base end portion 13c toward the upper cross member 2a. The auxiliary brim 13 may be composed of one or more steel plates and / or one or more steel pipes (ie, steel materials). When the auxiliary hook 13 is provided so as to be pivotable (with respect to the base end 13c or with respect to the main hooks 11 and 12), the vertical distance between the pair of cross members 2a and 2b of the lifting / lowering part 2 is It is possible to deal with cases where the size or type varies. That is, the hanging tool 3 having a common specification can be used for forklifts 1 of various sizes or types.

  The auxiliary collar part 13 is connected with the fixture 23 (refer FIG. 5). The fixture 23 pivots with respect to the base end portions 11a and 12a so as to prevent the main collar portions 11 and 12 from being separated from the elevating portion 2, or so that the main eave portions 11 and 12 are separated from the elevating portion 2. In order to prevent this, a force to push or pull away from the vehicle portion 1a of the forklift 1 is applied to the upper cross member 2a (see FIG. 5). Based on the connection between the auxiliary hook 13 and the fixture 23, the main hooks 11 and 12 are separated from the elevating part 2 and are prevented from pivoting away.

  Hereinafter, description will be made with reference to several embodiments shown in FIGS. The hanger body 10 may include a frame 10f having a bifurcated structure (for example, a trident) (see FIGS. 2 and 3). The frame 10 f includes at least three flange portions 11 to 13, that is, includes at least two main flange portions 11 and 12 and at least one auxiliary flange portion 13. Although not necessarily limited thereto, the frame 10f has a triangular frame base 10g as viewed from above, and the auxiliary hook 13 extends in a manner of dividing the frame base 10g into two when viewed from above. In the frame 10f, the pair of left and right main collars 11 and 12 approach as they extend obliquely forward and upward (see FIG. 3). The frame 10f includes a connecting portion 15 that connects the main collar portions 11 and 12 at positions on the base end side thereof, but may be omitted depending on circumstances. Each of the pair of main hooks 11 and 12 is connected to the other main hooks 11 and 12 at a position on the tip side.

  The main collar portions 11 and 12 or the frame 10f optionally have an extension portion 14 extending forward from the main collar portions 11 and 12 at an angle different from that of the main collar portions 11 and 12, and a weight is provided at the distal end portion of the extension portion 14. A ring part or hole part (ring part in the illustrated example) 19 for suspending an object is provided. By providing the ring part or the hole part 19 in the extension part 14 that extends at an angle smaller than the main rod parts 11 and 12, the heavy object can be suspended at a position closer to the forklift 1 while avoiding interference with the heavy object. When the hanger body 10 is viewed from the side, the extending direction of the main hooks 11 and 12, the angle θ1 formed by the plane PL9 orthogonal to the main hook parts 11 and 12, and the extending direction of the extending part 14 and the plane PL8 parallel to the plane PL9. The formed angle θ2 satisfies θ1> θ2 (see FIG. 2). In addition, in order to suspend a heavy article with respect to the ring part or the hole part 19, a chain block etc. not shown can be used.

  In a state in which the suspension main body 10 is attached to the pair of cross members 2a and 2b by two or more attachments 21 to 23, the main collar portions 11 and 12 are the cross members below the upper cross member 2a. 2b extends obliquely upward and forward from the base end portions 11a and 12a at a position or height close to 2b, while the auxiliary flange portion 13 extends from the lower cross member 2b along the extending direction of the main flange portions 11 and 12. It extends toward the upper cross member 2a from the base end portion 13c at the spaced position. When the hanger body 10 is viewed from the side in a state where the hanger body 10 is attached to the pair of cross members 2a and 2b via the attachments 21 to 23, the main hook parts 11 and 12 and the auxiliary hook part 13 have an acute angle. It extends to make an angle θ3.

  When attaching the hanger body 10 to the forklift 1, first, the attachments 21 and 22 (on the left and right outside) are attached to the cross members 2a and 2b on the upper side of the forklift 1, and the attachments 21 and 22 are attached. The attachment portions 11b and 12b of the main collar portions 11 and 12 are attached. The attachment of the fixtures 21 and 22 to the cross members 2a and 2b and the attachment of the suspension main body 10 (main hook portions 11 and 12) to the attachments 21 and 22 are performed by screw / bolt fastening (a combination of screws and screw holes, bolts). And a combination of nuts and the like. As a result, it is possible to avoid problems such as loosening of screw / bolt fastening caused by vibration during transportation. It is assumed that a considerable force is also applied to the hanger body 10 and the fixtures 21 to 23 according to the inertia of the heavy object when the heavy object is conveyed. In the illustrated example, a pin is used for axial attachment of the attachment portion 13b of the auxiliary flange 13 and the upper end portion 23a of the attachment 23, but the pin is prevented from falling off by an appropriate stopper.

  As described above, it is assumed that the main collar portions 11 and 12 are pivotally attached to the fixtures 21 and 22 (see FIG. 4). A form of wearing is also envisaged. In other words, the flange portions 11 to 13 can have attachment portions 11b, 12b, and 13b that can be attached to the attachments 21 to 23 in a detachable manner. By the axial attachment of the flange parts 11 to 13 and the fixtures 21 to 23, the movement of the suspension body 10 with respect to the fixture 23 is allowed, and stable or smooth transportation of heavy objects is promoted. The attachment portions 11b, 12b, and 13b are preferably located at the ends 11a, 12a, and 13a of the flange portions 11, 12, and 13 or in the vicinity thereof.

  In some cases, the mounting portions 11b and 12b are shaft portions extending in the left-right direction (shaft portions provided at or near the end portions 11a and 12a of the main flange portions 11 and 12). It has the shaft support parts 21b and 22b which support the shaft part. The shaft support portions 21b and 22b may be concave portions opened upward. By fitting the shaft portion into the recess, the attachment of the hanger body 10 (main hook portions 11, 12) to the fixtures 21, 22 is completed. The suspension main body 10 is attached at a position closer to the forklift 1 via the attachments 21 to 23.

  Subsequently, the fixture 23 is disposed behind the cross members 2 a and 2 b of the forklift 1, and the auxiliary flange 13 is attached to the fixture 23 in this state. In addition, after attaching the auxiliary collar part 13 with respect to the fixture 23, it is also assumed that the fixture 23 is arrange | positioned behind the horizontal members 2a and 2b of the upper and lower sides of the forklift 1. In this way, the hanger body 10 is attached to the pair of cross members 2a and 2b via the fixtures 21 to 23. A configuration in which the fixture 23 and the auxiliary hook 13 are pivotally attached in an detachable manner is advantageous, and the fixture 23 and the auxiliary hook 13 can be easily connected and disconnected. The attachment portion 13b of the auxiliary flange portion 13 is, for example, a shaft hole, and the pin 9 is inserted in a state where the shaft hole of the attachment portion 13b and the shaft hole 23b of the attachment 23 are overlapped (see FIG. 5). In addition, the aspect of axial attachment is various and is not necessarily restricted to the aspect using a pin. It is also assumed that the mounting portion 13b is provided with a shaft portion extending in the left-right direction, and the upper end portion 23a of the fixture 23 is provided with a recess for receiving the shaft portion.

  The fixtures 21 and 22 (on the left and right outer sides) can be hung on the upper cross member 2a (see FIG. 4), or can be hung on the lower cross member 2b (see FIG. 8). The fixtures 21 and 22 include fitting portions 21a and 22a that are fitted to the cross member, and shaft support portions 21b and 22b that pivotally support the attachment portions 11b and 12b of the main flange portions 11 and 12, respectively. When the shaft support portions 21b and 22b pivotally support the attachment portions 11b and 12b of the main flange portions 11 and 12, the fixtures 21 and 22 push the lower cross member 2b toward the vehicle portion 1a side of the forklift 1 (indicated by F1). See arrow). As shown in FIG. 4, the fixtures 21 and 22 have intermediate portions 21c and 22c extending vertically between the fitting portions 21a and 22a and the shaft support portions 21b and 22b (in front of the cross members 2a and 2b). However, this is advantageous from the viewpoint of more stable attachment of the hanger body 10 via the attachments 21 and 22 to the pair of cross members 2a and 2b. The fitting portions 21a and 22a push the upper cross member 2a away from the vehicle portion 1a of the forklift 1 (see the arrow indicated by F2).

  The fitting 23 (at the center of the left and right) has a fitting portion 23c that fits into the lower cross member 2b (see FIG. 5), or a fitting portion 23c that fits into the upper cross member 2a. (See FIG. 9). The fitting of the fixture 23 and the cross members 2a and 2b may be a mode in which the fixture 23 falls according to gravity, but the fixture 23 and the main collar portion through the auxiliary flange 13 or other means. The mechanical connection of 11 and 12 prevents the fixture 23 from falling.

  As shown in FIGS. 5 and 9, the fixture 23 has an upper end portion 23 a that is pivotally attached to the attachment end portion 13 a of the auxiliary collar portion 13. The hanger body 10 is attached to the pair of cross members 2a and 2b by the fixtures 21 to 23 (when the upper end portion 23a of the fixture 23 and the attachment end portion 13a of the auxiliary flange 13 are pivotally attached) The upper end part 23a is arranged at a position higher than the upper cross member 2a of the pair of cross members 2a, 2b. In this case, the fixture 23 and the auxiliary hook 13 can be connected and disconnected more easily. As described above, the manner of axial attachment between the upper end portion 23a of the fixture 23 and the auxiliary flange 13 is various. For example, the axial hole of the attachment portion 13b of the auxiliary flange 13 and the axial hole 23b of the fixture 23 are provided. The pin 9 is inserted in a superposed state (see FIG. 5). When the fitting portion 23c of the fixture 23 is fitted to the cross members 2a and 2b, and the upper end portion 23a of the fixture 23 and the auxiliary flange portion 13 are pivotally attached, the fixture 23 attaches the upper cross member 2a to the forklift 1. It pushes in the direction away from the vehicle part 1a (refer the arrow shown by F3). As shown in FIG. 5, the fixture 23 has an intermediate portion 23d extending vertically between the fitting portion 23c and the upper end portion 23a (behind the cross members 2a and 2b) so that a pair of cross members 2a, This is advantageous in terms of more stable attachment of the suspension body 10 via the attachment 23 to 2b. In the form shown in FIG. 5, the fitting portion 23c can push the lower cross member 2b toward the vehicle portion 1a side of the forklift 1 (see the arrow indicated by F4). In the form shown in FIG. 9, the fitting portion 23c can push the upper cross member 2a toward the vehicle portion 1a side of the forklift 1 due to the influence of vibration or the like when carrying a heavy object by the forklift 1 (see the arrow indicated by F4). . It is also assumed that either the upper or lower cross members 2a, 2b have a recess, and the fitting portions 21a, 22a, 23c have a protrusion 29 that fits into the recess (see FIG. 4). In some cases, the fixtures 21 to 23 are made of a bent non-hollow steel material.

  As shown in FIG. 6, a first extension rod 16 can be arranged and fixed on the upper surface of the frame 10 f (extremely, the extension portion 14), and a heavy load is suspended at the tip of the first extension rod 16. Are provided with a ring portion or a hole portion 19 (ring portion in the illustrated example). Arrangement of the first extension rod 16 on the frame 10f in a backpack is a result of attaching the ring portion 19 to the frame 10f (extension portion 14) more firmly. Specifically, the ring part 19 has a stop piece welded to the inner wall surface of the steel pipe of the frame 10f (extension part 14), and the inner width of the steel pipe of the frame 10f (extension part 14) is narrowed by this stop piece. Therefore, it becomes difficult to insert the first extension rod 16 into the steel pipe of the frame 10f (extension portion 14). The first extension rod 16 may have a reinforcement rod 16f extending along the extending direction.

  As shown in FIG. 6, on the upper surface of the frame 10f (extension portion 14), a pair of left and right fixing walls 41 for fixing the first extension rod 16 and a pair of left and right walls for preventing the first extension rod 16 from being displaced laterally. The stop wall 42 is provided. A pin is inserted into the hole of the fixed wall 41 and the hole of the side wall of the first extension rod 16, and the first extension rod 16 is fixed on the frame 10f (extension portion 14). In addition, necessary measures are taken to prevent the pins from coming off. A plurality of holes are provided in the side wall of the first extension rod 16 along the extending direction of the first extension rod 16, and the protruding length from the frame 10f can be adjusted.

  As shown in FIG. 7, the second extension rod 17 can be inserted and fixed to the first extension rod 16, and a ring or hole portion 19 ( In the illustrated example, a hole) is provided. Larger weights can be lifted by two-stage extension. The second extension rod 17 can be fixed to the first extension rod 16 by inserting a pin by overlapping the holes of the first extension rod 16 and the second extension rod 17. A plurality of holes are provided in the side wall of the second extension rod 17 along the extending direction of the second extension rod 17, and the second extension rod 17 from the first extension rod 16 is changed by changing the hole into which the pin is inserted. The protrusion length is adjustable.

  In addition, as shown in FIG. 10, one of the pair of left and right main collar portions 11 and 12 is omitted, and one main collar portion 11 is assumed to extend straight forward and obliquely upward. From the viewpoint of the stability of the hanger body 10 during storage of the hanger body 10 and the stability during transportation of heavy objects, it is advantageous to employ the pair of main hooks 11 and 12. The risk that the hanger body 10 will fall when an earthquake occurs is reduced.

  Also in the form shown in FIGS. 11 and 12, when the hanger body 10 is attached to the pair of cross members 2 a and 2 b via two or more fittings 21 to 23, or in addition to this, the hanger 3 When a heavy object is suspended by the above, certain fixtures 21 and 22 give a force to push the lower cross member 2b toward the vehicle portion 1a of the forklift 1. In the form shown in FIGS. 11 and 12, the fixture 23 pivots with respect to the base end parts 11a and 12a so that the main hook parts 11 and 12 are separated from the elevating part 2 as compared with the form shown in FIG. In order to prevent this, as an alternative to applying a force to push or pull the upper cross member 2a away from the vehicle part 1a of the forklift 1, the main saddle parts 11 and 12 are prevented from leaving the elevating part 2. Therefore, a force to push or pull the upper cross member 2a in a direction away from the vehicle portion 1a of the forklift 1 is given. The center of gravity of the main flanges 11 and 12 extending obliquely upward from the base end portions 11a and 12a at a position or height closer to the lower cross member 2b than the upper cross member 2a is set closer to the forklift 1, and The main flanges 11 and 12 are stably attached to the pair of cross members 2a and 2b via two or more attachments 21 to 23. In addition or as an alternative, the use of screw and bolt fastening is avoided, and problems such as the occurrence of loose screw and bolt fastening due to vibration during transportation are avoided.

  To connect the first and second forks 21 and 22 as the two or more fixtures 21 to 23, the intermediate portion 11e between the base end portion 11a and the tip end portion 11d of the main collar portion 11, and the upper cross member 2a. The chain material 23 is used. The hanging tool main body 10 has a base 30 provided with the main hook 11 so that the angle can be adjusted in addition to the main hook 11. The base 30 includes first and second insertion portions 31 and 32 into which the fork claws of the first and second forks 21 and 22 are individually inserted. The forklift 1 is advanced with the first and second forks 21, 22 hung on the cross member 2 a on the upper side of the forklift 1, whereby the first and second forks are inserted into the first and second insertion portions 31, 32 of the base 30. Each of the fork claws 21 and 22 can be inserted individually.

  The base portion 30 is a shaft support portion 33 that pivotally supports the base end portion 11a of the main collar portion 11, and is integral with or separate from the shaft support portion 33, and is intermediate between the distal end portion 11d of the main collar portion 11 and the base end portion 11a. The intermediate support part 34 for supporting the part 11e is provided, and the intermediate support part 34 is configured to support the main collar part 11 at two or more different angles. The shaft support portion 33 and / or the intermediate support portion 34 can be constructed from a pair of left and right wall portions. The intermediate support part 34 has a plurality of shaft holes provided in order above the plane PL7 orthogonal to the vertical direction in which the pivot point of the main rod part 11 exists. By inserting a pin in a state where the shaft hole of the intermediate support part 34 and the shaft hole of the main collar part 11 are overlapped, the main collar part 11 can be fixed at a predetermined angle.

  An intermediate portion 11 e of the main collar portion 11 is provided with an annular portion 11 h for connection with the upper cross member 2 a via the chain member 23. The ring portion 11 h has a stop piece welded to the inner wall surface of the steel pipe of the main flange portion 11, and is firmly fixed to the main flange portion 11. The main flange 11 is a steel pipe, and the extension rod 51 can be inserted and fixed.

  The transporting method includes a step of attaching the suspension main body 10 to the pair of cross members 2a and 2b that are spaced apart in the up-and-down direction 2 of the forklift 1 by using two or more attachments 21 to 23. . Here, the two or more attachments 21 to 23 can include three or more attachments attached to the cross members 2a and 2b without depending on screw / bolt fastening. The transportation method further includes a step in which a heavy object suspended from the lifting tool body 10 is displaced up and down in accordance with the raising or lowering of the elevating part 2 of the forklift 1. The elevating part 2 of the forklift 1 can be set to an appropriate height, and a heavy object suspended from the hanger body 10 can be set to an appropriate height and transported. It should be noted that the weight of a heavy object is generally understood to be difficult to carry manually, and there is no restriction on the specific weight. As a precaution, a heavy article has a weight of at least 100 kg or 500 kg or more than 1 t.

  Based on the above teaching, those skilled in the art can make various modifications to the embodiments. Reference signs included in the claims are for reference only and should not be referenced for the purpose of limiting the scope of the claims. The fixtures 21 to 23 can also be referred to as first to third fixtures.

DESCRIPTION OF SYMBOLS 1 Forklift 1a Vehicle part 2 Elevating part 2a, 2b Cross member 3 Hanging tool 10 Hanging tool main body 21-23 Attachment

Claims (14)

A lifting tool (3) that can be lifted and lowered together with a lifting part (2) of a forklift (1),
A hanger body (10);
Two or more attachments (21-23) for attaching the hanger body (10) to at least two cross members (2a, 2b) arranged vertically in the elevating part (2),
In the state where the hanger body (10) is attached to the at least two cross members (2a, 2b) via the two or more attachment tools (21 to 23), the upper cross member (2a) Comprising at least one main flange (11, 12) extending obliquely upward and forward from a base end (11a, 12a) at a position or height closer to the lower cross member (2b),
When the suspension body (10) is attached to the at least two cross members (2a, 2b) via the two or more attachments (21 to 23), or in addition to the suspension ( When a heavy object is suspended by 3), a certain fixture (21, 22) gives a force to push the lower cross member (2b) toward the vehicle portion (1a) of the forklift (1), Another fixture (23) is provided on the upper side to prevent the main collar (11, 12) from pivoting with respect to the base end (11a, 12a) away from the lift (2). A hanger that applies a force to push or pull the cross member (2a) in a direction away from the vehicle part (1a) of the forklift (1).   In the state where the suspension body (10) is attached to the at least two cross members (2a, 2b) via the two or more attachments (21 to 23), the main hook (11, 12) has a secondary flange portion (13) extending from the base end portion (13c) at a position spaced apart from the lower cross member (2b) along the extending direction of 12) toward the upper cross member (2a). The hanging tool according to claim 1.   3. A hanger according to claim 2, wherein the secondary hook (13) is pivotably provided. The another fixture (23) has an upper end portion (23a) that is pivotally attached to an attachment end portion (13a) of the auxiliary flange portion (13),
When the suspension body (10) is attached to the at least two cross members (2a, 2b) via the two or more attachments (21 to 23), the upper end (23a) The hanger according to claim 2 or 3, wherein the hanger is arranged at a position higher than the cross member (2a).   The hanging tool main body (10) has a branch structure frame including at least three hook parts (11 to 13) including at least two main hook parts (11, 12) and at least one auxiliary hook part (13). The hanger according to any one of claims 2 to 4, comprising (10f).   The said eaves part (11-13) is a suspension tool of Claim 5 which has an attachment part (11b, 12b, 13b) which can be pivotally attached to the said attachment tool (21-23) so that attachment or detachment is possible.   The suspension tool according to claim 6, wherein the attachment portion (11b, 12b, 13b) is located at or near an end portion (11a, 12a, 13a) of the flange portion (11-13).   An extension rod (16) can be disposed and fixed on the upper surface of the frame (10f), and a ring portion or a hole portion (19) for suspending heavy objects is provided at the tip of the extension rod (16). The hanging tool according to any one of claims 5 to 7.   The certain fixtures (21, 22) include end portions (11a, 12a) of the main collar portions (11, 12) or shaft support portions (21b, 12b) that support shaft portions (11b, 12b) provided in the vicinity thereof. The hanger according to any one of claims 1 to 8, comprising 22b). The other fixture (23) is arranged on the upper side to prevent the main collar (11, 12) from pivoting with respect to the base end (11a, 12a) so as to be separated from the elevating part (2). As an alternative to applying a force to push or pull the cross member (2a) away from the vehicle part (1a) of the forklift (1), the main flange part (11, 12) is connected to the elevating part (2 In order to prevent the upper cross member (2a) from being separated from the vehicle portion (1a) of the forklift (1).
The two or more fixtures (21 to 23) are provided between the first and second forks (21, 22) and the intermediate portion between the proximal end portion (11a) and the distal end portion (11d) of the main collar portion (11). The suspension tool according to claim 1, comprising a chain member (23) for connecting the portion (11e) and the upper cross member (2a). The said hanger main body (10) is further provided with the base (30) in which the said at least 1 main collar part (11) was provided so that angle adjustment was possible,
The base portion (30) includes first and second insertion portions (31, 32) into which the fork claws of the first and second forks (21, 22) are individually inserted, and the main hook portion (11). A shaft support portion (33) that pivotally supports the base end portion (11a), and the shaft support portion (33) that is integral with or separate from the intermediate support portion (11e) of the main collar portion (11). Intermediate support (34),
The said intermediate support part (34) is a hanging tool of Claim 10 comprised so that the said main collar part (11) can be supported at two or more different angles.   The intermediate part (11e) of the main collar part (11) is provided with a ring part (11h) for connection with the upper cross member (2a) via the chain material (23). The hanging tool described in 1.   The two or more fixtures (21 to 23) include three or more fixtures attached to the cross member (2a, 2b) without depending on screw / bolt fastening. The hanging tool according to one item. Two or more attachments (21-23) are used for the hanger body (10) with respect to a pair of cross members (2a, 2b) that are spaced apart in the vertical direction in the elevating part (2) of the forklift (1). The two or more fixtures (21 to 23) include three or more fixtures that are attached to the cross members (2a, 2b) without using screw / bolt fastening. ,
Including a step of vertically displacing a heavy object suspended from the lifting device main body (10) in accordance with the raising or lowering of the elevating part (2) of the forklift (1),
The hanger body (10) is attached to the pair of cross members (2a, 2b) via the two or more attachment members (21 to 23) from the upper cross member (2a). Including at least one main flange portion (11, 12) extending obliquely forward and upward from the base end portion (11a, 12a) at a position or height close to the lower cross member (2b),
When the suspension body (10) is attached to the pair of cross members (2a, 2b) via the two or more attachments (21 to 23), or in addition to this, the suspension (3) When a heavy object is hung by a certain fixture (21, 22), the lower cross member (2b) is given a pushing force toward the vehicle part (1a) of the forklift (1), The fixture (23) is configured to prevent the main brim portion (11, 12) from separating from the lifting / lowering portion (2) with respect to the upper cross member (2a). A method for conveying a heavy object, which applies a force to push or pull away from 1a).

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