JP2006123811A - Gangway getting-on/off step driving device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gangway getting-on/off step driving device capable of automatically performing an elevating/lowering operation and a swing-out operation to a shore side of the getting-on/off step. <P>SOLUTION: This driving device 10 drives the getting-on/off step 5 laid from a deck 2 to the shore 3 side. The device 10 is provided with a turning post 21 erected on the deck 2, a turning davit 20 rotated in relation to the turning post 21 to be swung from the deck 2, a turning driving mechanism 30 for driving the turning davit 20, two wire ropes 7 and 8 delivered from a distal end part of the turning davit 20 via each sheave 11 and 12 and connected to the getting-on/off step 5, and two jigger cylinders (winding mechanisms) 13 and 14 for winding the wire ropes 7 and 8. The device 10 drives the elevating/lowering operation of the getting-on/off step 5, the swing-out operation of the step 5 to the shore 3, and a storage/deployment operation of the step 5. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a lock gate boarding / alighting step driving device that drives a boarding / alighting step (slope) that is passed between a hull and a shore and allows a person to get on and off.

Conventionally, as this kind of Xiamen boarding / alighting step drive device, there is one that lifts the boarding / alighting step through a winch or the like (see Patent Document 1).
Japanese Patent Application Laid-Open No. 07-251791

  However, in such a conventional Xiamen boarding / alighting step drive device, since the operation of swinging the boarding / alighting step to the shore is performed manually, there is a problem that it takes time.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a lock boarding boarding / alighting step driving device that can automatically perform the lifting / lowering operation of the boarding / alighting step and the swinging operation to the shore side.

  The present invention is applied to a Xiamen boarding / alighting step driving device that drives a boarding / alighting step that is bridged from the deck to the shore side.

  Then, a turning post erected on the deck, a turning davit that is rotated with respect to the turning post and is swung out from the deck, a turning drive mechanism that drives the turning davit, and a tip of the turning davit A wire rope that is fed out and connected to the boarding / unloading step and a winding mechanism that winds up the wire rope, and is configured to drive the lifting and lowering operation of the boarding / unloading step and the swing-out operation to the shore. .

  The Xiamen boarding / alighting step drive device of the present invention automatically performs the swing-in / out operation of the boarding / alighting step and the ascending / descending operation, so that these operations can be performed quickly and labor saving is achieved.

  The Xiamen boarding / alighting step drive unit is a unit consisting of a swing post, a swivel davit, a swivel drive mechanism, a wire rope, a winding mechanism, etc., standing on the deck. Can be easily done.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  As shown in FIGS. 1A and 1B, a boarding / alighting step 5 is provided on the side deck 2 of the hull 1. In this ramp-up step 5, in the ramp state, after descending on the shore side of the hull 1, it is swung out from the shore side and spanned on the shore 3 to form a boarding / alighting path (talp) connecting the deck 2 and the shore 3. To do.

  A step rotation support portion 6 that rotatably supports the base end portion of the getting-on / off step 5 with respect to the hull 1 is provided on the side of the hull 1. The step rotation support unit 6 includes a step elevating shaft, a step swinging pivot shaft, and a step storing and unfolding shaft (not shown).

  In the ramp state of the boarding / alighting step 5, the step lifting shaft supports the boarding / alighting step 5 so as to be rotatable about the horizontal axis, and moves the boarding / alighting step 5 up and down.

In the ramp state of the boarding / exiting step 5, this step-out swinging shaft supports the boarding / exiting step 5 so as to be rotatable around the vertical axis, and the boarding / exiting step 5 is put in and out. The retractable unfolding shaft supports the getting-on / off step 5 so as to be rotatable about a horizontal axis, and can be switched between a stowed position where the getting-on / off step 5 stands on the deck 2 and a deployed position where the getting-on / fall step 5 is deployed on the deck 2.

  On the anchor deck 2, a lock boarding / leaving step driving device 10 for driving the boarding / exiting step 5 is provided. This Xiamen boarding / alighting step drive device 10 automatically performs the raising / lowering operation of the boarding / alighting step 5, the swinging operation to the shore 3, and the storing and unfolding operation.

  As shown in FIGS. 2A, 2 </ b> B, and 2 </ b> C, the Xiamen boarding / alighting step drive device 10 rotates with respect to the turning post 21 standing on the deck 2 and the turning post 21. The turning davit 20 swayed from the deck 2, the turning drive mechanism 30 for driving the turning davit 20, and the leading end of the turning davit 20 are fed through the sheaves 11, 12 and connected to the boarding / exiting step 5. Two wire ropes 7 and 8 and two jigger cylinders (winding mechanisms) 13 and 14 for winding the wire ropes 7 and 8 are provided.

  The swivel post 21 is erected vertically on the deck 2. The turning post 21 is disposed in the vicinity of the step rotation support portion 6. Thereby, as the turning davit 20 turns and turns the getting-on / off step 5 through the wire ropes 7, 8, the suspension points for the turning davit 20 and the getting-on / off step 5 of the wire ropes 7, 8 are separated from each other. And smooth operability is ensured.

  A rotating cylinder member 23 is rotatably supported by a rotating post 21 via a bearing (not shown), and a proximal end portion of the rotating davit 20 is coupled to the rotating cylinder member 23 with an offset. Thereby, the turning davit 20 is supported so as to be rotatable about the vertical axis with respect to the turning post 21.

  In the turning drive mechanism 30, one turning cylinder 24 is provided between the turning post 21 and the turning davit 20. The cylinder base end part of the turning cylinder 24 is connected to the turning post 21 via a pin 25, and the rod tip part thereof is connected to the turning davit 20 part way via a pin 26.

  When the turning cylinder 24 is extended, the swiveling cylinder 24 moves to the swinging position where it is swung out to the outside of the deck 2, and when the turning cylinder 24 is contracted, the turning davit 20 is moved to the retracted position on the deck 2.

  The suspension points of the wire ropes 7 and 8 are provided at different portions in the width direction of the getting-on / off step 5.

  A hook 9 is coupled to the tips of the wire ropes 7, 8, and the hook 9 is detachably connected to a pair of hanging rings (not shown) connected to the left and right ends of the getting-on / off step 5. The That is, the wire ropes 7 and 8 are connected so as to sandwich the boarding / alighting path of the boarding / alighting step 5 so that a person can get on and off between the wire ropes 7 and 8 during a ramp.

  The suspending points of the wire ropes 7 and 8 with respect to the getting-on / off step 5 are provided at positions as close as possible to the central portion in the longitudinal direction of the getting-on / off step 5. Thereby, the weight of the getting-on / off step 5 is balanced with respect to the suspension points of the wire ropes 7, 8, and smooth operability is ensured when the getting-on / off step 5 is retracted and deployed.

  The sheaves 11 and 12 for feeding out the wire ropes 7 and 8 are provided at the tip of the swiveling davit 20. The sheaves 11 and 12 are supported so as to be able to swing through the support shafts 27 and 28. The support shafts 27 and 28 are arranged so as to extend in the longitudinal direction of the swiveling davit 20.

  In the middle of each wire rope 7, 8, a plurality of fixed sheaves 15, 16 connected to the swivel davit 20, and a plurality of dynamic sheaves 17, 18 connected to the rod tips of the jigger cylinders 13, 14, respectively. It is wound in multiple. The base ends of the wire ropes 7 and 8 are connected to the swiveling davit 20. Thereby, the expansion / contraction operation of each jigger cylinder 13, 14 is amplified and converted into a movement for driving each wire rope 7, 8. When the jigger cylinders 13 and 14 are contracted, the wire ropes 7 and 8 are pulled in to raise the getting-on / off step 5, while when the jigger cylinders 13 and 14 are extended, the wire ropes 7 and 8 are drawn out to carry out the getting-on / off step 5. Lower.

  The swiveling davit 20 is formed in a box shape with aluminum material or the like, and the jigger cylinders 13 and 14 and the sheaves 11 to 18 are accommodated therein.

  FIG. 3 is a circuit diagram of the hydraulic unit 31 that drives the turning cylinder 24 and the jigger cylinders 13 and 14. Explaining this, as a hydraulic source, the hydraulic unit 31 includes booster hydraulic pumps 32 to 35 that are operated by air pressure guided from the pneumatic circuit 51.

  Supply and discharge passages 37 and 38 for supplying and discharging hydraulic oil to and from the jigger cylinder 13 selectively communicate with the discharge side and the tank side of the hydraulic pumps 32 and 33 via the switching valve 39.

  Supply and discharge passages 41 and 42 for supplying and discharging hydraulic oil to and from the jigger cylinder 14 are selectively communicated to the discharge side and the tank side of the hydraulic pumps 34 and 35 via the switching valve 43.

  Supply and discharge passages 44 and 45 for supplying and discharging hydraulic oil to and from the turning cylinder 24 selectively communicate with the discharge side and the tank side of the hydraulic pumps 34 and 35 via the switching valve 46.

  When the operator switches the position of each switching valve 39, 43, the expansion / contraction operation and stop of each of the jigger cylinders 13, 14 are controlled, respectively, and by switching the position of the switching valve 46, the expansion / contraction operation and stop of the turning cylinder 24 are controlled. Is done.

  Next, the operation of the Xiamen boarding / alighting step driving device 10 configured as described above will be described.

  When the boarding / alighting step 5 is lowered from the storage position to the ramp position, the operation is performed according to the following procedure.

-Operate the switching valve 39 to extend the jigger cylinder 13 and feed only the wire rope 7 to rotate the boarding / alighting step 5 erected on the deck 2 to the deployed position.
At this time, the swing sheave 11 rotates around the support shaft 27 and the wire rope 7 is smoothly fed out.

  -Operate the switching valve 46 to extend the turning cylinder 24 and swing the turning davit 20 together with the getting-on / off step 5 to the shore 3 side.

  -Operate each switching valve 39, 43 to extend each jigger cylinder 13, 14 in synchronism, feed out each wire rope 7, 8, and ground the getting-on / off step 5 on the shore 3. The occupant gets on / off step 5 and raises a handrail or the like.

  After the boarding / alighting step 5 is passed over to the shore 3 side, a gate-shaped frame is attached between the wire ropes 7 and 8 so that the wire ropes 7 and 8 do not disturb the person getting on and off. Moreover, you may remove each wire rope 7 and 8 from the boarding / alighting step 5. FIG.

  When returning the boarding / alighting step 5 from the ramp position to the retracted position, the following operation is performed in the reverse order of the above.

  -Operate the switching valves 39 and 43 to contract the respective jigger cylinders 13 and 14 in synchronism, retract the wire ropes 7 and 8, raise the getting-on / off step 5 to a substantially horizontal position, and push it on the storage hardware (not shown) Stop by hitting.

  The switch valve 46 is operated to cause the turning cylinder 24 to contract, and the turning davit 20 is drawn onto the deck 2 together with the getting-on / off step 5.

  Operate the switching valve 39 to cause the jigger cylinder 13 to contract and retract only the wire rope 7, rotate the getting-on / off step 5, and stand on the deck 2.

  In this way, the Xiamen boarding / alighting step drive device 10 automatically performs all of the storing and unfolding operations of the boarding / alighting step 5, the swing-in / out operation to the shore 3, and the ascending / descending operation. Can be realized.

  Moreover, when using the boarding / alighting step 5 on the sea, the boarding / alighting step 5 does not have to be moved up and down along the side of the hull 1 and the turning davit 20 described above is carried out.

  The Xiamen boarding / alighting step drive device 10 includes a turning post 21, a turning davit 20, a turning drive mechanism 30, wire ropes 7, 8, a jigger cylinder (winding mechanism) 13, 14, etc., standing on the deck 2. Since it is provided, it can be easily implemented by installing the Xiamen boarding / alighting step drive device 10 on the deck 2. As a result, the structure of the motor can be simplified by eliminating the electric motor winch or the guide pulley attached to the davit provided as a conventional device. In addition, the thing of the conventional structure can be used for the boarding step 5 and its step rotation support part 6 grade | etc.,.

  Next, another embodiment shown in FIG. 4 will be described. In addition, the same code | symbol is attached | subjected to the same structure part as the said embodiment.

  As shown in FIGS. 4A, 4 </ b> B, and 4 </ b> C, the Xiamen boarding / alighting step drive device 10 is pivoted with respect to the pivot post 21 standing on the deck 2 and the pivot post 21. The turning davit 20 swung out from the deck 2, the turning drive mechanism 30 that drives the turning davit 20, and one wire that is fed from the tip of the turning davit 20 through the sheave 51 and connected to the getting-on / off step. A rope 52 and two jigger cylinders (winding mechanism) 58 for winding the wire rope 52 are provided.

  As shown in FIG. 4D, a triangular plate 61 is connected to the tip of the wire rope 52, and two wire ropes 62 and 63 extend from the triangular plate 61. The wire ropes 62 and 63 are detachably connected to the two left and right ends of the getting-on / off step 5 through hooks 64 and 65, respectively.

 After the boarding / alighting step 5 is passed over to the shore 3 side, the wire ropes 62 and 63 are removed from the boarding / alighting step 5 so that they do not disturb the person's boarding / alighting.

  A fixed sheave 51 for feeding a wire rope 52 is provided at the tip of the swiveling davit 20. In the middle of the wire rope 52, the wire rope 52 is hung around a fixed sheave 54 connected to the swiveling davit 20, and then connected to a plurality of fixed sheaves 55 connected to the swiveling davit 20 and the rod tip of the jigger cylinder 58. A plurality of moving sheaves 56 are wound in a multiple manner. The proximal end portion of the wire rope 52 is connected to the rod distal end portion of the jigger cylinder 58. Thereby, the expansion / contraction operation of the jigger cylinder 58 is amplified and converted into a movement for driving the wire rope 52. When the jigger cylinder 58 contracts, the wire rope 52 is pulled in to raise the getting-on / off step 5, while when the jigger cylinder 58 is extended, the wire rope 52 is drawn out to lower the getting-on / off step 5.

  The swiveling davit 20 is formed in a box shape from aluminum or the like, and a jigger cylinder 58 and sheaves 55 and 56 are housed inside thereof, and sheaves 51 and 54 are attached to the outside thereof.

  The Xiamen boarding / alighting step driving device 10 configured as described above can automatically perform the swing-in / out operation to the shore 3 and the ascending / descending operation via one wire rope 52, thereby saving labor. However, in this case, the storing / unfolding operation of the getting-on / off step 5 is not performed.

  Since the lock gate stepping and driving device 10 has a structure in which one wire rope 52 is driven by one jigger cylinder 58, the structure can be simplified.

  The present invention is not limited to the above-described embodiment, and it is obvious that various modifications can be made within the scope of the technical idea.

  The Xiamen boarding / alighting step drive device of the present invention can be used for passenger ships, cargo ships, warships, or other ships.

The boarding / alighting step / Xiamen boarding / alighting step drive device etc. which show embodiment of this invention are shown, (a) is a top view, (b) is a side view. Similarly, the Xiamen boarding / alighting step drive device is shown, (a) is a plan view, (b) is a side view, and (c) is a front view. Similarly hydraulic circuit diagram. The Xiamen boarding / alighting step drive apparatus in other embodiment is shown, (a) is a top view, (b) is a side view, (c) is a rear view, (d) is a front view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hull 2 Deck 5 Boarding / alighting step 6 Step rotation support part 7, 8 Wire rope 10 Xiamen boarding / alighting step drive device 11-18 Sheave 13, 14 Jigger cylinder (winding mechanism)
20 Rotating davit 21 Rotating post 30 Rotating drive mechanism

Claims (3)

In the Xiamen boarding / alighting step drive device that drives the boarding / alighting step that crosses from the deck to the shore side,
A swivel post erected on the deck,
A swiveling davit that rotates with respect to the swivel post and swings out of the deck,
A turning drive mechanism for driving the turning davit;
A wire rope that is fed from the tip of the swivel davit and connected to the getting-on / off step;
A winding mechanism for winding the wire rope,
Xiamen boarding / alighting step drive device characterized in that it is configured to drive the ascending / descending operation of the boarding / alighting step and the swing-out operation to the shore side. Comprising two wire ropes connected to different parts in the width direction of the getting-on / off step;
2. The lock boarding / alighting step drive device according to claim 1, wherein the winding mechanism is configured to wind up one of the wire ropes and store the boarding / alighting step on a deck. Two sheaves for guiding each wire rope fed out from the tip of the swivel davit;
The lock board stepping-in / stepping drive device according to claim 2, further comprising: each support shaft that supports each sheave so as to be swingable with respect to the swivel davit.

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