Opening and closing hook remote control device

Abstract

To provide a remote operation device for an opening / closing hook capable of easily and remotely operating an opening / closing hook.SOLUTION: A remote operation device 1 for an opening / closing hook has an opening / closing hook 2 with a hook member 9 and with a lock member 10, a control device 3, and a driving device 4. When a releasing signal is received, the control device 3 can release the hook member 9 by causing the driving device 4 to pull up the lock member 10.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a remote operating device for an opening and closing hook. [Background technology]

[0002] BACKGROUND ART Opening and closing hooks are known that have a hook member and a lock member, and the hook member can be put into an open state by pulling up the lock member (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-23122 Summary of the Invention [Problem to be solved by the invention]

[0004] It may be desirable to be able to easily remotely operate the opening and closing hooks described above, for example, when installing root protection blocks underwater.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an opening and closing hook remote control device that can easily remotely control an opening and closing hook. [Means for solving the problem]

[0006] The opening and closing hook remote control device of the present invention includes an opening and closing hook having a hook member and a lock member, a control device, a drive device, a wedge member; and the wedge member has a wedge portion and an annular portion, the wedge portion is inserted between the hook member and the locking member from above and engages with the hook member to restrict rotation of the locking member from the locked position toward the unlocked position, the drive device has a tension member, the tension member is passed through the annular portion, bent at the annular portion to form a dogleg shape, and extends to and is connected to the locking member, Upon receiving the release signal, the control device the wedge member via the tension member The locking member In this order This is an opening / closing hook remote control device that can open the hook member by pulling it up.

[0007] In the above-described configuration, the opening and closing hook remote control device of the present invention is characterized in that the drive device The aforementionedPreferably, the remote operating device for an opening / closing hook includes a tension member and a hoisting device that can hoist the locking member via the tension member by hoisting the tension member.

[0008] The opening and closing hook remote control device of the present invention has the above-mentioned configuration. 、 It is preferable that the winding device be an opening / closing hook remote control device that can wind up the tension member to pull up the wedge member via the tension member, thereby releasing the engagement between the hook member and the locking member, and further wind up the tension member to pull up the locking member via the tension member.

[0009] In the above-described configuration, the opening / closing hook remote control device of the present invention preferably has a support body that supports the opening / closing hook, the control device, and the drive device.

[0010] In the above-described configuration, the remote control device for opening and closing hook of the present invention is preferably a remote control device for opening and closing hook, in which the control device has a sonic receiver. [Effects of the Invention]

[0011] According to the present invention, it is possible to provide an opening / closing hook remote control device that can easily remotely control an opening / closing hook. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is an external view showing an opening / closing hook remote control device according to an embodiment of the present invention in a locked state of the opening / closing hook. [Figure 2] This is an external view seen from an angle 90 degrees different from that of FIG. [Figure 3] 2 is an external view of the state in which the opening and closing hook is opened from the state shown in FIG. 1. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0014] As shown in FIGS. 1 and 2, in one embodiment of the present invention, an open-close hook remote control device 1 includes an open-close hook 2, a control device 3, a drive device 4, a wedge member 5, a support body 6, a pair of hanging members 7, and a transmitter 8. The open-close hook 2 includes a hook member 9 and a locking member 10, and the hook member 9 includes a base portion 11 and an open-close portion 12. The control device 3 includes a processing device 3a and a receiver 3b. The drive device 4 includes a tension member 13 such as a wire, rope, belt, or chain, and a hoisting device 14, and the hoisting device 14 includes a drive source 15, a pulley drive shaft 16, a housing 17, and a pulley 18. The wedge member 5 includes a wedge portion 5a and an annular portion 5b. The support body 6 includes a support plate 19, a connecting plate 20, and three connecting shafts 21. The transmitter 8 includes a transmitting member 8a.

[0015] A first hoisting device 22, which includes a sling such as a wire, rope, belt, or chain and is wound around a load, is slung onto the hook member 9. The opening / closing hook 2, the control device 3, the drive device 4, the wedge member 5, the support body 6, and the pair of hoisting members 7 constitute a second hoisting device 23. Each of the pair of hoisting members 7 is suspended from a transport device such as a crane via a third hoisting device 24. In other words, the load is suspended from the transport device via the first hoisting device 22, the second hoisting device 23, and the third hoisting device 24, and transported.

[0016] In this embodiment, the opening / closing hook remote control device 1 is configured to be suitable for installing foot protection blocks and wave dissipating blocks underwater. For this purpose, the receiving device 3b is particularly composed of an acoustic receiver, and the transmitting device 8 is particularly composed of an acoustic transmitter. In particular, by using sound waves in the audible range, the user can work with peace of mind while audibly confirming the operation. However, the opening / closing hook remote control device 1 is not limited to this, and may also be configured to be suitable for transporting a desired suspended load on land. For this purpose, for example, the receiving device 3b may be configured to be a radio wave receiver, and the transmitting device 8 to be a radio wave transmitter.

[0017] In this specification, the up-down direction means the vertical up-down direction when the opening-closing hook 2 is hung from a transport device via a support 6 or the like.

[0018] To form the support body 6, the support plate 19, which has a downwardly triangular shape, is connected to a connecting plate 20, which also has a downwardly triangular shape, at each of its three corners via connecting shafts 21 that extend in a first direction perpendicular to the up-down direction, so that the support plate 19 faces the connecting plate 20 at a predetermined distance in the first direction. The connecting shaft 21 located on the lower side (hereinafter also referred to as the lower connecting shaft 21) is connected to the base portion 11 of the hook member 9. The pair of connecting shafts 21 located on the upper side (hereinafter also referred to as the upper connecting shafts 21) are each connected to the hanging member 7. The hanging member 7 extends upward from the connecting shaft 21 and has a through hole 7a at its upper part. A third hanging tool 24 is passed through the through hole 7a.

[0019] An opening for passing the winding device 14 is provided in the center of the support plate 19 when viewed in the first direction, and a housing 17 for the winding device 14 is attached to the periphery of the opening. A drive source 15, which is an electric motor, can rotate a pulley 18 via a pulley drive shaft 16 about a first rotation axis O extending in the first direction. The drive source 15 and a portion of the pulley drive shaft 16 are sealed in a housing 17 configured as a pressure-resistant and waterproof container, and the pulley 18 is disposed between the support plate 19 and the connecting plate 20 in the first direction. The connecting plate 20 has an access window 20a formed as an opening in the center when viewed in the first direction. The access window 20a allows for easy fastening work through the access window 20a when fastening the housing 17 to the support plate 19 with a fastener. Note that the structure for attaching the housing 17 to the support plate 19 is not limited to using a fastener, and may be a structure that attaches the housing 17 by welding, for example. Furthermore, the connecting plate 20 is not limited to having the access window 20a.

[0020] The housing 17 also contains a sealed processing device 3a and a receiving device 3b, each of which is composed of a computer. The driving source 15, the processing device 3a, and the receiving device 3b are electrically connected to each other via wires or wirelessly. A power source (battery, not shown) for operating the driving source 15 and the processing device 3a is also appropriately located within the housing 17. The driving source 15, the processing device 3a, and the receiving device 3b do not necessarily have to be entirely housed within a single housing 17; they may be housed separately in two or more housings 17. In this case, each housing 17 may be directly attached to the support 6, or one or more housings 17 may be attached to the support 6 via other housings 17. The transmitting device 8 is operated by a worker underwater, on a ship, or on land, and can transmit a release signal from a transmitting member 8a located underwater. By receiving the release signal via the receiving device 3b, the processing device 3a can control the driving source 15 to rotate the pulley 18 about the first rotation axis O via the pulley drive shaft 16.

[0021] The pulley 18 has a winding portion 18a around which the tension member 13 is wound. When the drive source 15 rotates the pulley 18 in one circumferential direction about the first rotation axis O, the portion of the tension member 13 wound around the winding portion 18a is fed in the rotational direction of the pulley 18, thereby lifting the lower end of the tension member 13. In this embodiment, the winding portion 18a is formed as a circumferential groove extending circumferentially along the outer periphery of the pulley 18, and the upper end of the tension member 13 is integrally attached to the pulley 18 via the circumferential groove. Note that the winding portion 18a is not limited to being formed as a circumferential groove. The lower end of the tension member 13 is connected to the locking member 10 of the opening and closing hook 2 so that the locking member 10 can be lifted. The lower end of the tension member 13 is preferably connected to the tip portion 10a of the locking member 10 as shown in the figure.

[0022] The base portion 11 of the hook member 9 of the opening-closing hook 2 extends downward from the lower connecting shaft 21. The base portion 11 may be integrally connected to the support body 6 via the lower connecting shaft 21, or may be connected so as to be rotatable around an axis of the lower connecting shaft 21 extending in the first direction. The base end of the opening-closing portion 12 of the hook member 9 is connected to the lower end of the base portion 11 via a lower pivotal support portion 25. The lower pivotal support portion 25 connects the opening-closing portion 12 to the base portion 11 so as to be rotatable on both sides in the circumferential direction around a second axis of rotation P extending in the first direction.

[0023] The opening-closing hook 2 can change its configuration from a closed state in which the opening-closing part 12 is in the closed position and forms a hook shape that allows the first sling 22 to be slinged by the base part 11 and the opening-closing part 12 as a whole, to an open state in which the opening-closing part 12 is in the open position and the first sling 22 is released from the hook member 9, by rotating the opening-closing part 12 to one side in the circumferential direction around the second rotation axis P, and can also change its configuration from the open state to the closed state by rotating the opening-closing part 12 to the other side in the circumferential direction around the second rotation axis P. The tip part 12a of the opening-closing part 12 forms the tip part of the hook shape.

[0024] The base end of the locking member 10 is connected to the vertical middle portion of the base portion 11 (i.e., the portion located between the upper end and the lower end) via the upper pivot support portion 26. The upper pivot support portion 26 connects the locking member 10 to the base portion 11 so as to be rotatable on both sides in the circumferential direction about a third rotation axis Q extending in the first direction. The tip portion 10a of the locking member 10 constitutes a free end that can move vertically as the locking member 10 rotates. The locking member 10 is positioned at the locked position when the opening-closing unit 12 is in the closed position, thereby restricting the opening-closing unit 12 from rotating from the closed position to the open position. In other words, when the opening-closing hook 2 is in the locked state where the opening-closing unit 12 is in the closed position and the locking member 10 is in the locked position, the first sling 22 is prevented from coming off the hook member 9.

[0025] Furthermore, the wedge portion 5a of the wedge member 5 is engaged between the hook member 9 and the locking member 10 in the locked state, thereby restricting the locking member 10 from unintentionally rotating from the locked position to the unlocked position due to an impact or the like. More specifically, the wedge portion 5a can be engaged between the hook member 9 and the locking member 10 in the circumferential direction. Furthermore, an intermediate portion of the tension member 13 located between both end portions is passed through the annular portion 5b of the wedge member 5. When viewed in the first direction, the tension member 13 is arranged in a dogleg shape, extending from the pulley 18 to the annular portion 5b, bending at the annular portion 5b, and extending to the locking member 10.

[0026] The winding device 14 can wind up the tension member 13 to pull up the wedge member 5 via the tension member 13, thereby releasing the engagement between the hook member 9 and the locking member 10, and can further wind up the tension member 13 to pull up the locking member 10 via the tension member 13. By pulling up the locking member 10 in this way, the lock state shown in Figures 1 and 2 can be changed to an open state in which the opening / closing unit 12 has rotated from the closed position to the open position as indicated by the white arrow, as shown in Figure 3.

[0027] According to this embodiment, the user can easily switch the opening / closing hook 2 from a locked state to an open state by transmitting a release signal using the transmitter 8. Furthermore, since this embodiment is configured to use the support body 6, when it is desired to transport a suspended load while determining its circumferential orientation about a central axis extending in the vertical direction, the circumferential orientation of the suspended load can be easily determined via the support body 6 by determining the circumferential orientation of the third suspender 24 using an appropriate suspending jig or the like.

[0028] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit and scope of the present invention.

[0029] Therefore, the opening and closing hook remote control device 1 of the above-mentioned embodiment can be modified in various ways as long as it is an opening and closing hook remote control device 1 that has an opening and closing hook 2 having a hook member 9 and a locking member 10, a control device 3, and a drive unit 4, and the control device 3 can receive a release signal to cause the drive unit 4 to pull up the locking member 10, thereby putting the hook member 9 into an open state.

[0030] For example, the wedge member 5 may not be provided. The support 6 for supporting the opening / closing hook 2, the control device 3, and the drive device 4 may not be used. For example, the drive device 4 may be connected to the upper end of the base portion 11 of the hook member 9 by a suspending rope. Furthermore, the drive device 4 is not limited to a configuration including the tension member 13 and the hoisting device 14, and may be configured so that the locking member 10 can be pulled up by a drive source 15 via a ball screw mechanism, for example.

[0031] In addition, the opening and closing hook remote control device 1 of the above-mentioned embodiment is preferably an opening and closing hook remote control device 1 in the above configuration, in which the drive device 4 has a tension member 13 and a hoisting device 14 that can lift the locking member 10 via the tension member 13 by winding up the tension member 13.

[0032] The opening / closing hook remote control device 1 of the above-described embodiment is preferably an opening / closing hook remote control device 1 having the above-described configuration, which has a wedge member 5 that can be engaged between the hook member 9 and the locking member 10, and in which the hoisting device 14 can wind up the tension member 13 to pull up the wedge member 5 via the tension member 13, thereby releasing the engagement between the hook member 9 and the locking member 10, and can further wind up the tension member 13 to pull up the locking member 10 via the tension member 13.

[0033] The opening and closing hook remote control device 1 of the above-described embodiment is preferably an opening and closing hook remote control device 1 having a support body 6 that supports the opening and closing hook 2, the control device 3, and the drive device 4 in the above configuration.

[0034] The opening and closing hook remote control device 1 of the above-described embodiment is preferably an opening and closing hook remote control device 1 in which the control device 3 has a sonic receiver in the above configuration. [Explanation of symbols]

[0035] 1. Opening and closing hook remote control device 2 Opening and closing hook 3. Control device 3a Processing equipment 3b Receiving device 4. Drive unit 5 Wedge member 5a Wedge 5b Annular part 6 Support 7 Hanging member 7a Through hole 8 Transmitting device 8a Transmitting member 9 Hook member 10 Locking member 10a Tip 11 Base 12 Opening and Closing Section 12a Tip 13 Tensile members 14 Winding device 15 Power Source 16 Pulley drive shaft 17. Cabinet 18 Pulley 18a Winding part 19 Support plate 20 Connecting plate 20a Work window 21 Connecting shaft 22 First Lift 23 Second Lift 24 Third Hanging Device 25 Lower shaft support 26 Upper shaft support O First rotation axis P Second rotation axis Q Third rotation axis

Claims

1. The device includes an opening / closing hook having a hook member and a lock member, a control device, a drive device, and a wedge member, The wedge member has a wedge portion and an annular portion, the wedge portion is inserted from above between the hook member and the locking member and engages with the hook member to restrict the locking member from rotating from the locked position toward the unlocked position, the drive device includes a tension member; The tension member is passed through the annular portion, bent at the annular portion to form a dogleg, and extended to and connected to the locking member, An opening and closing hook remote control device in which the control device, upon receiving a release signal, causes the drive device to pull up the wedge member and the locking member in this order via the tension member, thereby placing the hook member in an open state.

2. The opening and closing hook remote control device according to claim 1 , wherein the drive device comprises the tension member and a hoisting device that can hoist the tension member to pull up the locking member via the tension member.

3. An opening / closing hook remote control device as described in claim 2, wherein the winding device is capable of winding up the tension member to pull up the wedge member through the tension member, thereby releasing the engagement between the hook member and the locking member, and further winding up the tension member to pull up the locking member through the tension member.

4. The opening and closing hook remote control device according to any one of claims 1 to 3, further comprising a support for supporting the opening and closing hook, the control device, and the drive device.

5. 5. A remote control opening and closing hook as claimed in any one of claims 1 to 4, wherein the control device comprises a sonic receiver.

Images