JP2007131394A - Hoisting accessory for container conveyance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hoisting accessory for a can-shaped container capable of hoisting and conveying the container without tilting it even when the gravity center of the container is shifted from the center, easily attached/detached, eliminating the risk of dropping and preventing damage of the container. <P>SOLUTION: Two fixation arms 2, 3 and one telescopic arm 4 are radially connected with each other in a base end side by a connecting member 5, at a mutual angle of 120°. Lock members 6, 7, 8 are jointed to portions in the vicinity of tips of the respective arms 2, 3, 4. The arms 2, 3 have length approximately corresponding to the radius of the container C, and have engaging parts 9, 10 fittable to an inner flange C1 of the container C at the tips. The telescopic arm 4 is fixed in the extended state where the length of the telescopic arm 4 becomes the length approximately corresponding to the radius of the container C, and has an engaging part 11 fittable to the inner flange C1 at the tip. Slings S are hooked on the lock members 6, 7, 8 and the container C is hoisted by a crane or the like. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a lifting device for transporting a drum-like container having an inner flange at an inner peripheral edge of an upper opening.

As a conventional drum can hanging tool, for example, one described in Patent Document 1 is known. The drum can lifting tool automatically holds and lifts the upper edge of the drum can in a standing state, or automatically grips and lifts both edges of the drum can in a horizontal state, and has the following configuration.
In other words, gripping claws are attached to both ends of the auxiliary beam that is long in the horizontal direction as long as the length of the drum can to be gripped so that it can be rotated forward and backward, and the lifted beam is lifted slightly in the vertical direction relative to the auxiliary beam. In such a direction that the rear ends of the gripping claws on both ends of the auxiliary beam are pressed at both ends of the suspension beam that are movably connected to the auxiliary beam, and the drum cans are gripped by the gripping claws. The drum can can be lifted and conveyed by generating a gripping force by the acting rotational moment.
Utility Model Registration No. 3040007

The conventional drum can suspension is difficult to apply because the specific structure is different from the container to which the present invention is applied. Further, since the two-point suspension system is used, when the contents are in a single-load state and the center of gravity is deviated from the center, the drum can be inclined at the time of lifting.
Accordingly, the present invention is a lifting device for transport that is particularly applicable to a drum-shaped container having an inner flange at the inner peripheral edge of the upper opening, and is a three-point suspension system. Can be lifted and transported without tilting the container even when it is off center, and can be easily attached to and detached from the container, but there is no risk of falling off and no damage to the container It is an issue to provide.

  In the present invention, in order to solve the above-described problem, the two fixed arms 2 and 3, the one telescopic arm 4, the connecting member 5 that couples the base end sides of the arms 2, 3, 4, and the arms 2 , 3, and 4, locking members 6, 7, and 8 that are coupled to the vicinity of the tips of the containers C, 3, and 4, constitute the container C carrying suspension 1. The two fixed arms 2 and 3 have a length substantially corresponding to the radius of the container C, and are provided with engaging portions 9 and 10 that can be fitted to the inner flange C1 of the container C at the tip. The telescopic arm 4 can be fixed in an extended state having a length substantially corresponding to the radius of the container C, and an engagement portion 11 that can be fitted to the inner flange C1 is provided at the tip. The connecting member 5 joins the base end sides in a state where the fixed arms 2 and 3 and the telescopic arm 4 are radially opened at a mutual angle of 120 °. The suspension line S is hooked on the locking members 6, 7, and 8, and the container C is lifted by a crane or the like.

  Since the lifting device of the present invention is a three-point suspension system, the container can be lifted without being tilted and transported safely even when the contents are in a single-load state, and can be easily attached to and detached from the container. Since there is no fear and the clamp is not used, there is an effect that there is no possibility of damaging the container.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a lifting tool of the present invention, FIG. 2 is a front view of the lifting tool of the present invention, FIG. 3 is a plan view of the lifting tool, FIG. 4 is a sectional view taken along IV-IV in FIG. It is a top view which shows the mounting process of.

The hanger 1 includes two fixed arms 2 and 3 and one telescopic arm 4. These arms 2, 3, 4 are coupled by a connecting member 5 on the proximal end side. Shackles 6, 7, and 8, which are locking members for hooking the suspension cable S, are coupled near the ends of the arms 2, 3, and 4.

  The two fixed arms 2 and 3 are made of a strip-shaped steel plate, have a length substantially corresponding to the radius of the container C, and engage portions 9 and 10 that can be fitted to the inner flange C1 of the container C at the tips. Have The engaging portions 9 and 10 are made of a block-shaped steel material having fitting grooves 9a and 10a into which the inner flange C1 can be inserted.

  The telescopic arm 4 is telescopic and can be fixed in the extended state. In this state, the telescopic arm 4 has a length substantially corresponding to the radius of the container C, and has an engaging portion 11 that can be fitted to the inner flange C1 at the tip. .

  The connecting member 5 joins the base end sides in a state where the fixed arms 2 and 3 and the telescopic arm 4 are radially opened at a mutual angle of 120 °.

  The telescopic arm 4 has a guide box 12 and a slider 13 which are incorporated so as to be slidable in the longitudinal direction, and includes a fixing pin 14 for fixing both in an extended state.

  The guide box 12 has a pair of parallel guide plates 15 and is coupled to the connecting member 15 at the proximal end. Between the two guide plates 15, a strip-like slider 13 is received slidably in the longitudinal direction on the base end side. That is, both ends of the guide pin 16 penetrating the slider 13 are slidably received in the long holes 15a provided in the two guide plates 15, and the guide pin 16 is inserted into the long hole 15a. Is slidable with respect to the guide box 12 within a range in which can be moved. An engaging portion 11 is provided at the tip of the slider 13. The engaging part 11 consists of block-shaped steel materials provided with the fitting groove 11a which can insert the inner flange C1.

  The guide box 12 and the slider 13 have pin insertion holes 15b and 13a that match each other in the extended state. A fixing pin 14 for fixing the guide box 12 and the slider 13 can be passed through the pin insertion holes 15a and 13a.

  The fixed pin 14 has a small diameter portion 14b that can be inserted into the pin insertion holes 15b and 13a and a large diameter portion 14a that cannot be inserted, and the small diameter portion 14b further includes a base portion 14c integrated with the large diameter portion, A refracting portion 14d pivotally attached to the tip of the base portion 14c by a spring pin is provided. With the fixing pin 14 penetrating through the pin insertion holes 15b and 13a, the protruding bent portion 14d can be bent to prevent it from coming off.

  When the lifting tool 1 is attached to the container C, as shown in FIG. 5, the lifting tool 1 is put into the container C with the fixing pin 14 removed and the telescopic arm 4 is contracted, and the fixing arm 2, 3 engagement portions 9 and 10 are fitted to the inner flange C1. In this state, the telescopic arm 4 is extended, the fixing pin 14 is passed through the pin insertion holes 15b and 13a, and the refracting portion 14d is bent to prevent it from coming off. Then, the suspension cable S is locked to the shackles 6, 7, and 8 and lifted by a crane. Attachment / detachment to / from the container can be easily performed by inserting / removing the fixing pin 14 and expansion / contraction of the telescopic arm 4.

  Since the hanger 1 is a three-point hanger, the contents are solid and can be lifted without tilting and transported safely even in a single-load state. Since the three points are securely fitted to the inner flange C1, there is no possibility of dropping unless the inner flange C1 is deformed. Since it is hung near the inner flange C1, a bending moment is hardly applied to the inner flange C1, and deformation is avoided. Since a clamp that bites the inner flange C1 is not used, there is no possibility of damaging the container C.

  Another embodiment of the telescopic arm 4 is shown in FIG. The telescopic arm 4 is telescopic and can be fixed in an extended state. In this state, the telescopic arm 4 has a length substantially corresponding to the radius of the container C, and has an engagement portion 11 that can be fitted to the inner flange C1 at the tip. This is equivalent to the previous embodiment in that it has the shackle 8. The telescopic arm 4 has a guide box 17 and a screw rod 18 that are incorporated so as to be telescopic with respect to each other in the longitudinal direction, and includes a lock nut 19 that fixes both in an extended state. The guide box 17 has a pair of parallel guide plates 20 and an end plate 21, and is coupled to the connecting member 5 at the base end via a support plate 22. The proximal end side of the screw rod 18 freely passing through the guide hole 21a of the end plate 21 is received between the two guide plates 20 and is prevented from coming off by the stopper 18a. The engaging portion 11 is provided at the tip of the screw rod 18. The engaging part 11 consists of block-shaped steel materials provided with the fitting groove 11a which can insert the inner flange C1. The guide box 20 and the screw rod 18 are fixed to each other by a lock nut 19 in the extended state.

  When the lifting tool 1 is attached to the container C, the locking nut 19 is moved to the distal end side of the screw rod 18 and the telescopic arm 4 is contracted. 3 engagement portions 9 and 10 are fitted to the inner flange C1. In this state, the lock nut 19 is moved to the proximal end side of the screw rod 18 to extend the telescopic arm 4 and fix it to the end plate 21. Then, the suspension cable S is locked to the shackles 6, 7, and 8 and lifted by a crane.

  The present invention is used, for example, as a hanging tool that is used by being mounted on a nuclear drum drum-like waste container or the like.

It is a perspective view of the hanging tool of the present invention. It is a front view of the hanging tool of the present invention. It is a top view of the hanging tool of the present invention. It is IV-IV sectional drawing in FIG. It is a top view which shows the mounting process of a hanging tool. The expansion-contraction arm of other embodiment is shown, (a) is a front view, (b) is a top view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lifting tool 2 Fixed arm 3 Fixed arm 4 Telescopic arm 5 Connecting member 6 Locking member 7 Locking member 8 Locking member 9 Engaging part 9a Fitting groove 10 Engaging part 10a Fitting groove 11 Engaging part 11a Fitting Groove 12 Guide box 13 Slider 13a Pin insertion hole 14 Fixed pin 14a Large diameter portion 14b Small diameter portion 14c Base portion 14d Refraction portion 15 Guide plate 15a Long hole 15b Pin insertion hole 16 Guide pin C Container C1 Inner flange S Suspension cable

Claims (4)

It is a lifting tool for transporting a drum-like container having an inner flange at the inner peripheral edge of the upper opening,
Two fixed arms having a length substantially corresponding to the radius of the container and having an engaging portion that can be fitted to the inner flange at the tip;
A telescopic arm configured to be extendable and fixable in an extended state substantially corresponding to the radius of the container, and having an engaging portion that can be fitted to the inner flange at the tip;
A connecting member that joins the base end side in a state where the fixed arm and the telescopic arm are radially opened at a mutual angle of 120 °;
A container lifting device, comprising: a locking member that is coupled to the vicinity of the distal ends of the fixed arm and the telescopic arm and holds the suspension rope.   The container lifting device according to claim 1, wherein the locking member for holding the suspension rope is a shackle. The extendable arm includes a guide box and a slider that are slidably assembled with each other in the longitudinal direction, and a fixing pin that fixes the guide box and the slider in an extended state.
The guide box is coupled to the connecting member at a proximal end, the slider is slidably received in the guide box in the longitudinal direction on the proximal end side, and has the engaging portion at the distal end.
3. The container lifting device according to claim 1, wherein the guide box and the slider have a pin insertion hole that matches each other in an extended state and allows the fixing pin to pass therethrough. The fixing pin has a small diameter portion that can be inserted into the pin insertion hole, and a large diameter portion that cannot be inserted,
The small-diameter portion includes a base portion integral with the large-diameter portion, and a refracting portion pivotably attached to the tip of the base portion,
The container transportation suspension device according to claim 3, wherein the container can be prevented from being detached by bending the protruding refracting portion in a state where the small diameter portion is passed through the pin insertion hole.

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