KR101463756B1 - Jack-up Barge's Up and Down Machine - Google Patents

Jack-up Barge's Up and Down Machine Download PDF

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Publication number
KR101463756B1
KR101463756B1 KR20140105365A KR20140105365A KR101463756B1 KR 101463756 B1 KR101463756 B1 KR 101463756B1 KR 20140105365 A KR20140105365 A KR 20140105365A KR 20140105365 A KR20140105365 A KR 20140105365A KR 101463756 B1 KR101463756 B1 KR 101463756B1
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KR
South Korea
Prior art keywords
housing
block
rotation
jack
rotary member
Prior art date
Application number
KR20140105365A
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Korean (ko)
Inventor
김현준
Original Assignee
김현준
동국해양 (주)
(주)동국
(주)부마씨이
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Application filed by 김현준, 동국해양 (주), (주)동국, (주)부마씨이 filed Critical 김현준
Priority to KR20140105365A priority Critical patent/KR101463756B1/en
Application granted granted Critical
Publication of KR101463756B1 publication Critical patent/KR101463756B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/28—Barges or lighters
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
    • E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering

Abstract

The present invention relates to a machine to elevate a jack-up barge and, more specifically, to a machine to elevate a jack-up barge which continuously regulates a leg spud of a self-elevating platform (SEP) barge; safely and primly installs the leg spud; and maintains the leg spud constantly at a predetermined position. Therefore, the provided machine to elevate the jack-up barge can facilitate various underwater and water-surface work smoothly by adjusting the height of the leg spud of the jack-up barge accurately and securely, firmly installing the leg spud, and constantly continuously maintaining the predetermined position of the leg spud in a safe state.

Description

 [0001] Jack-up Barge's Up and Down Machine [

The present invention relates to a jack up and down apparatus for jack-up pants. More particularly, the present invention relates to a jack up and down apparatus for a jack-up pants which is easy to adjust the leg spud of SEP pants (self elevating platform barge) Up pants < RTI ID = 0.0 > up / down < / RTI > device that allows the leg spud to remain in place continuously.

Currently, in the shipbuilding and marine sector, underwater construction for the development of marine resources, transportation / installation of marine structures, and harvesting / transporting of marine resources are being actively carried out. Barges are often used.

In order to carry out such underwater construction or transport / installation of marine structures or to collect / transport marine resources, drilling, geological survey or other research, a jack-up barge is installed on the sea, Equipment, or an operator is on board.

Generally, a jack-up barge comprises a platform on which work equipment is mounted or a worker, and a leg spud which supports the platform. Four bars are provided on the edge of the platform to support and fix the platform And is installed in a vertical direction with respect to the platform.

In addition, the leg spur placed in the vertical direction with respect to the platform is disadvantageous in that it is very vulnerable to physical forces externally applied, such as waved and blue, and the platform installed on the sea is largely deteriorated It may cause damage to the work equipment, and in some cases, the safety of the worker may be threatened. Therefore, there is a problem that the accurate and safe operation is hindered by the influence of the waves and tides on the sea there was.

In this case, a jack-up device can be installed to stably maintain the position of a barge in a process of installing a water structure or taking a seabed resource. Such a jack-up device is provided with a leg The barge is jacked up by the spud, and the technique relating to the barge line to which the jack jack or the jack-up device is applied is disclosed in Korean Patent Laid-Open Publication No. 10-2012-0019638 "Jack- No. 10-2010-0069035 "Loading conveyor barge"

It is pointed out that it is very important to minimize the shaking generated when the work is performed on the platform in installing such a jack-up barge. As a result, even in an environment where there is not much external physical force such as blue and wool, Stable support and fixation of the platform is very important. When the weight of the platform itself and the load of the work equipment are added so that a very heavy load is applied to the leg spud, it is necessary to install it in a considerably large area for stable operation on the platform Stable support and fixing are very important tasks. Therefore, it has been continuously demanded to develop a stable jack-up barge line so that a jack-up barge line can be stably fixed even if a little bit.

Therefore, the conventional jack-up device includes a rack gear vertically installed on the outer surface of the leg spud and a pinion engaged with the rack gear to drive the pinion by the driving motor, The vertical movement of the legs of the rack is achieved by the engagement of the rack gear and the pinion, and the leg springs, which have been vertically moved, are fixed in the fixed position, Excessive load is applied to the gears of the gears and the pinion, which often causes damage or breakage of the rack gears and the pinion. This causes the vertical movement of the leg spur to be unstable or the vertical movement of the leg spur can not be performed smoothly Leg spud after the vertical movement is completed is also anxious The development of a new configuration, self-elevating device for improving this, as to keep the position were the situation is now required.

Therefore, the main purpose of the present invention is to accurately and easily adjust the height of the leg spud of the jack-up pants, as well as to firmly install the leg spud and to maintain the stable position continuously, Up jacket of the jack-up pants so that the jack-up pants can be carried out by the user.

In order to accomplish the above object, according to the present invention, there is provided a jack-up and down apparatus for a jack-up pants comprising: a housing having a vertically rising and descending passage, an opening formed on a front surface thereof and a slide hole formed horizontally below the opening; A leg spud that vertically penetrates the passage and has a plurality of protruding blocks formed on an outer circumference thereof; and a rotatable member is formed inside the housing and a fixing block is formed on the rotatable member so as to correspond to the protruding blocks of the leg spud, A rotation fixing part for fixing the rotation member to a lever of the rotation fixing part to swing the rotation member; and a rotating member for rotating the rotation member, A supporting block is formed on the member so as to correspond to the projecting block of the leg spud, and a lever is formed in the rotating member so as to pass through the opening A rotation support portion for swinging the rotary member by engaging with a lever of the rotary support portion and a vertical lift portion for vertically conveying the leg spool sequentially by raising or lowering the rotary member of the rotary support portion, As a basic feature in terms of its technical structure.

Accordingly, the jack-up and down apparatus of the present invention can safely and securely fix the jack-up pants by the J-COS (Jack-up Barge to Construct Offshore Structures) method so that the foundation of the marine structure can be accurately excavated, The lower end of the rotary member and the lower end of the leg spud, the lower end of the rotary member, the lower end of the rotary member, The leg spud can be securely, firmly and accurately lowered by a desired length, and when the leg spud is raised, the rotation support member is released from the rotation member support state, and the rotation support member Lowering of the rotary member, maintenance of the rotary member supporting state of the rotary support member, The rotation of the rotary member and the leg spoof of the rotary support unit and the maintenance of the rotary member in the fixed state of the rotary fixing unit are sequentially performed in a repeated cycle so that the leg spurs are safely and firmly raised, It is not only accurate and easy to install but also it is possible to install the leg spur firmly and to maintain the stable position continuously. Therefore, underwater and water works to construct various marine structures by RCD (Reverse Circulation Drilling) So that it can be smoothly guided and performed.

1 is a front view showing a jack-up and down apparatus of a jack-up pants according to the present invention.
BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a jack-
Fig. 3 is a side view of Fig. 2, which is an enlarged view of the up-down apparatus main part of the jack-up pants according to the present invention;
FIG. 4 is a partial plan view of the fastening portion of FIG. 2, which is an enlarged view of the elevating device of the jack-up pants according to the present invention;
FIG. 5 is a plan view of a portion of the upward and downward portion of FIG. 2 showing an enlarged portion of the up-down device of the jack-up pants according to the present invention.
6 is a plan view showing a jack up and down apparatus of the jack-up pants according to the present invention.
7 is a cross-sectional view taken along the line AA of Fig. 6 showing the jack-up and down apparatus of the jack-up pants according to the present invention.
8 is a cross-sectional view taken along the line BB of Fig. 7 showing the jack-up and down apparatus of the jack-up pants according to the present invention.
9 is a cross-sectional view taken along the line CC of Fig. 7 showing the jack-up and down apparatus of the jack-up pants according to the present invention.
10 is a front view showing a leg spud of the lifting apparatus according to the present invention;
11 is a plan view showing a leg spud of the lifting apparatus according to the present invention.

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

As shown in FIGS. 1 to 11, the jack-up and down apparatus 100 of the jack-up pants includes a lifting and lowering passage 113 formed vertically, an opening 111 formed on the front surface thereof, A leg spud 120 that vertically penetrates the lifting passage 113 of the housing 110 and has a plurality of protruding blocks 121 formed on an outer periphery thereof; A rotary member 133 is formed on the lower side of the housing 110 and a fixing block 135 is formed on the rotary member 133 so as to correspond to the projecting blocks 121 of the leg spudes 120, 133 and a lever 134 passing through the slide slot 112 and a lever 134 of the rotation fixing part 130 to swing the rotation member 133 And a rotation member 153 is formed at the center of the inside of the housing 110 and a support block 155 is attached to the rotation member 153 A rotation support part 150 formed to correspond to the protrusion block 121 of the leg spud 120 and having a lever 154 penetrating through the opening 111 in the rotation member 153, And a rotary member 153 coupled to the lever 154 of the rotary support 150 for swinging and rotating the rotary member 153 and the rotary member 153 of the rotary support 150, And a lifting and descending portion 170 for vertically moving the puddle 120.

The housing 110 is formed by vertically passing the lifting and lowering passage 113 and by drilling an opening 111 in the front side and by drilling a slide slot 112 horizontally below the opening 111, 111 are provided to secure a sufficient space for moving the lever 154 in the up, down, left, and right directions, and the slide slot 112 is formed so as to secure a sufficient space horizontally to the left and right.

A guide block 114 is attached to the upper portion of the ascending and descending passage 113 of the housing 110 at regular intervals to form a guide groove 115 between the guide block 114 and the guide block 114.

Therefore, the protrusion block 121 of the leg spool 120 is guided by the guide groove 115, so that the leg spool 121 can be vertically moved accurately without rotating up and down.

The leg spudes 120 are formed by protruding a plurality of protruding blocks 121 on the outer circumferential surface and protruding at regular intervals at upper, lower, left, and right intervals.

The rotation fixing part 130 is provided with a guide housing 131 at a position of the inner slide slot 112 of the housing 110 and a rotary member 133 inserted into the guide housing 131 to be rotated The operation hole 132 is formed in the guide housing 131 so as to correspond to the slide slot 112 of the housing 110 so that the lever 134 formed on the rotary member 133 is inserted into the hole 132 112 are sequentially penetrated.

Here, the rotary member 133 is formed as an annular piece, and a fixing block 135 is formed on the inner circumference of the rotary member 133. The fixing block 135 of the rotary member 133 rotates to rotate the protrusion block 121 of the leg spool 120 .

The fixing rotation regulating part 140 includes a slide block 145 having a slide rail 145 attached to the upper and lower sides of the slide slot 112 of the housing 110 and a connection hole 144 formed between the slide rails 145 143 so as to horizontally move left and right so that the lever 134 of the rotary member 133 is interlocked with the connection hole 144 of the slide block 143, (133) interlock with each other to swing right and left.

The cylinder 141 is horizontally installed on one side of the slide block 143 and the end of the rod 142 is coupled to the slide block 143 to move the slide block 143 left and right.

The rotation support part 150 is formed so that the guide housing 151 is movable up and down at a position of the inner opening 111 of the housing 110 and the rotation member 153 is inserted into the guide housing 151 And the operation hole 152 is formed in the guide housing 151 so as to correspond to the opening 111 of the housing 110 so that the lever 154 formed on the rotary member 153 is in contact with the operation hole 152, (111) are successively passed through.

The rotary member 153 is formed as an annular piece and a support block 155 is formed on the inner circumference of the rotary member 153 so that the support block 155 of the rotary member 153 rotates to rotate the protrusion block 121 of the leg spool 120. [ .

The elevating and lowering rotation adjusting unit 160 is constructed by attaching the slider rails 165 to upper and lower sides of the opening 112 of the housing 110 and vertically forming an elevating and lowering guide hole 164 between the slide rails 165 The slide block 163 can be horizontally moved horizontally by engaging the slide block 163 so that the lever 154 of the rotary member 153 is interlocked with the up / down guide hole 164 of the slide block 163, So that the rotary member 153 interlocks with the left and right movement to swing right and left.

The cylinder 161 is horizontally installed on one side of the slide block 163 and the end of the rod 162 is coupled to the slide block 163 to move the slide block 163 left and right.

The ascending and descending portion 170 is provided with a vertically ascending and descending cylinder 171 inside the housing 110. The rod 172 is formed downward and the lower end of the rod 172 is connected to the guide housing of the rotation supporting portion 150 151 so as to move up and down the guide housing 151 so that the rotary member 153 installed inside the guide housing 151 can be moved up and down together.

Four lifting and lowering cylinders 171 are equally spaced and engaged with the ends of the rod 172 at four points of the guide housing 151 so that the leg spudes 120 supported by the rotary block 153 are smooth So as to be able to move up and down.

The operation of the present invention will be described as follows.

The fixing block 135 of the rotation fixing part 130 is fitted under the lowermost protruding block 121 of the leg spud 120 to lift the leg spud 120 to the uppermost position, The support block 155 is lifted up to a position below the protruding block 121 of the leg spud 120 and moves to the installation position of the barge 1 in a state where the support block 155 is doubly fixed and supported.

When the fixed installation leg spud 120 is lowered after the movement of the barge 1 and the barge 1 is to be fixed, the cylinder 141 of the fixing rotation adjustment part 140 is controlled to be coupled to the rod 142 The slide block 143 moves to one side while being guided by the slide rail 145 so that the rotation of the rotation fixing part 130 fitted to the connection hole 144 of the slide block 143 The fixed member 135 formed on the inner circumferential edge of the rotary member 133 is moved to the lowest position of the leg spool 120 by rotating the rotary member 133 which is pulled by the lever 134 and seated in the guide housing 131 And the upper and lower protruding blocks 121 formed on the side opposite to the upper and lower protruding blocks 121 are released.

At this time, the leg spudes 120 are supported only by the support block 155 of the rotary support 150.

When the loader 172 is lowered by controlling the ascending and descending cylinder 171 of the ascending and descending portion 170 in this state, the guide housing 151 of the rotation supporting portion 150 coupled to the loader 172 by the connecting link 173, The rotation member 153 mounted on the inside of the guide housing 151 also descends so that the support block 155 of the rotary member 153 is sandwiched between the upper and lower protruding blocks 121, While maintaining the support state.

Here, the lever 154 protruded outward to the rotary member 153 descends safely along the up / down guide hole 164 formed vertically to the slide block 163.

When the lowering of the leg spud 120 is completed as described above, the cylinder 141 of the fixing rotation regulating part 140 is controlled to push the slide block 143 coupled to the rod 142, The lever 134 of the rotation fixing part 130 fitted to the connection hole 144 of the slide block 143 is pushed to the inside of the guide housing 131 The fixed block 135 formed on the inner peripheral edge of the rotary member 133 is inserted between the upper and lower protruding blocks 121 of the leg spudes 120 and is fixed .

When the fixing of the leg spud 120 is completed, the cylinder 161 of the ascending / descending rotation regulating unit 160 is controlled to pull the slide block 163 coupled to the rod 162, and the slide block 163 The lever 154 of the rotary support portion 150 fitted to the elevation guide hole 164 of the slide block 163 is pulled and guided in the guide housing 151 The supporting block 155 formed on the inner peripheral edge of the rotary member 153 is released from the upper and lower protruding blocks 121 of the leg spool 120 .

When the support block 155 of the rotary support 150 releases the support state of the leg spud 120, when the loader 172 is elevated by controlling the ascending / descending cylinder 171 of the ascending and descending portion 170, The guide housing 151 of the rotary support 150 coupled with the connection link 173 also rises and the rotary member 153 seated in the guide housing 151 also rises.

When the upward movement of the rotary member 153 is completed by the upward movement of the guide housing 151 of the rotary support 150, the slide 161, which is coupled to the rod 162 by controlling the cylinder 161 of the vertical rotation adjustment unit 160, The slide block 163 is moved to the other side while being guided by the slide rail 165 so that the lever 163 of the rotation support part 150 fitted in the up / down guide hole 164 of the slide block 163 The support block 155 formed on the inner circumferential edge of the rotary member 153 is rotated by the protrusion of the leg spoiler 120 And is held between the blocks 121 to be initialized.

The barge line up apparatus 100 according to the present invention can be used in a barge line up apparatus 100 for a barge line up apparatus in which a rotation state of a rotary member 133 of a rotary fixing unit 130 is released, The rotation of the rotary member 153 of the rotary support unit 150 is released and the rotation of the rotary member 153 of the rotary support unit 150 is released, The member 153 is maintained in the supporting state in a repeated cycle so that the leg spud 120 is lowered by a desired length safely, firmly and accurately.

When the leg spud 120 is lifted, the rotary support 153 is released from the supporting state of the rotary support 150 in the initial state as described above, the rotary member 153 of the rotary support 150 descends, The rotation of the rotary member 153 of the rotary support portion 150 and the rotation of the rotary spool 120 of the rotary support portion 150, The rotation restricting member 130 is maintained in a fixed state by repeating the rotation of the rotatable member 130 in a cycle so that the leg spud 120 is securely and firmly raised.

When the leg spud 120 is passed through the lifting and lowering passage 113 of the housing 110, the protruding block 121 of the leg spud 120 is inserted into the guide groove 114 between the guide blocks 114 of the housing 110 The rotation block 133 of the rotation fixing part 130 and the rotation block 130 of the rotation supporting part 150 are fixed to the protruding block 121 of the leg spud 120, The support block 155 can be correctly operated so that the leg spud 120 can be safely raised and lowered.

100: lifting device 110: housing
111: opening 112: slide slot
113: ascending / descending passage 114: guide block
115: guide groove 120: leg spud
121: protruding block 130:
131: Guide housing 132: Operator ball
133: rotating member 134: lever
135: fixed block 140: fixed rotation regulating portion
141: cylinder 142: rod
143: slide block 144: connection hole
145: slide rail 150:
151: Guide housing 152:
153: rotating member 154: lever
155: Support block 160:
161: cylinder 162: rod
163: Slide block 164: Upward and downward guide ball
165: slide rail 170: ascending / descending portion
171: lifting cylinder 172: rod
173: Connection link

Claims (11)

A housing 110 in which a lifting passage 113 is formed vertically and an opening 111 is formed in the front surface and a slide slot 112 is formed horizontally below the opening 111,
A leg spud 120 that vertically penetrates the lifting passage 113 of the housing 110 and has a plurality of protruding blocks 121 formed on the outer periphery thereof,
A rotary member 133 is formed on the lower side of the housing 110 and a fixing block 135 is formed on the rotary member 133 so as to correspond to the projecting blocks 121 of the leg spudes 120, 133, a rotation fixing part 130 formed with a lever 134 passing through the slide slot 112,
A fixing rotation regulating part 140 coupled to the lever 134 of the rotation fixing part 130 to swing the rotation member 133,
A rotary member 153 is formed in the center of the housing 110 and a support block 155 is formed on the rotary member 153 to correspond to the projecting blocks 121 of the leg spudes 120, A rotation support portion 150 having a lever 154 penetrating through the opening 111,
A rotation adjusting unit 160 for swinging up and down the swing arm 150 by engaging with the lever 154 of the rotary support unit 150 to swing the rotary member 153,
And an ascending and descending portion 170 for ascending or descending the rotary member 153 of the rotary support portion 150 and vertically transporting the leg spool 120 in a vertical direction.
The method according to claim 1,
The opening 111 of the housing 110 is formed to secure a sufficient space for moving the lever 154 in the up and down direction and the left and right direction and the slide slot 112 is formed to secure a sufficient space horizontally A guide block 114 is attached at regular intervals to the upper side of the lifting passage 113 of the housing 110 to form a guide groove 115 between the guide block 114 and the guide block 114, 120) is guided to the guide groove (115) so that the leg spud (121) can be vertically moved accurately.
The method according to claim 1,
The rotation fixing part 130 is provided with a guide housing 131 at a position of the inner slide slot 112 of the housing 110 and a rotary member 133 inserted into the guide housing 131 to be rotated The operation hole 132 is formed in the guide housing 131 so as to correspond to the slide slot 112 of the housing 110 so that the lever 134 formed on the rotary member 133 is inserted into the hole 132 112) are sequentially passed through the jack-up pants.
The method according to claim 1 or 3,
The rotation member 133 of the rotation fixing unit 130 is formed as an annular piece and a fixing block 135 is formed on the inner circumference of the rotation fixing member 130. The fixing block 135 of the rotation member 133 is rotated to rotate the leg spool 120, And the projecting block (121) of the jack-up pants is configured to correspond to the projecting block (121) of the jack-up pants.
The method according to claim 1,
The fixing rotation regulating part 140 includes a slide block 145 having a slide rail 145 attached to the upper and lower sides of the slide slot 112 of the housing 110 and a connection hole 144 formed between the slide rails 145 143) are coupled to each other so as to horizontally move left and right, and the lever (134) of the rotating member (133) is interlocked with the connecting hole (144) of the slide block (143).
6. The method of claim 5,
The cylinder 141 is horizontally installed on one side of the slide block 143 and the end of the rod 142 is coupled to the slide block 143 to move the slide block 143 left and right Jack up and down pants.
The method according to claim 1,
The rotation support part 150 is formed so that the guide housing 151 is movable up and down at a position of the inner opening 111 of the housing 110 and the rotation member 153 is inserted into the guide housing 151 And the operation hole 152 is formed in the guide housing 151 so as to correspond to the opening 111 of the housing 110 so that the lever 154 formed on the rotary member 153 is in contact with the operation hole 152, (111) are sequentially passed through the jack-up pants.
8. The method of claim 1 or 7,
The rotary member 153 of the rotary support part 150 is formed as a ring shape and a support block 155 is formed on the inner peripheral edge of the rotary member 153 so that the support block 155 of the rotary member 153 rotates, And the protruding block (121) is configured to correspond to the protruding block (121).
The method according to claim 1,
The elevating and lowering rotation adjusting unit 160 is constructed by attaching the slider rails 165 to upper and lower sides of the opening 112 of the housing 110 and vertically forming an elevating and lowering guide hole 164 between the slide rails 165 Up jacket 164 of the slide block 163 and the lever 154 of the rotating member 153 is interlocked with the slide block 163 so as to be horizontally movable left and right. Up and down device.
The method of claim 9, wherein
The cylinder 161 is horizontally installed at one side of the slide block 163 and the end of the rod 162 is coupled to the slide block 163 to move the slide block 163 left and right Jack up and down pants.
The method according to claim 1,
The ascending and descending portion 170 is provided with a vertically ascending and descending cylinder 171 inside the housing 110. The rod 172 is formed downward and the lower end of the rod 172 is connected to the guide housing of the rotation supporting portion 150 151) is connected to a connection link (173) so that the guide housing (151) is moved up and down so that the rotary member (153) installed inside the guide housing (151) Lifting device.
KR20140105365A 2014-08-13 2014-08-13 Jack-up Barge's Up and Down Machine KR101463756B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102146416B1 (en) 2019-03-15 2020-08-20 최인규 Self-Locking Unit and Mechanical Jack-up Barge's up-and-down Machine having multiple braking, interlocking and single drive functions using of the the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283192U (en) * 1988-12-16 1990-06-27
JP2001354188A (en) * 2000-06-09 2001-12-25 Horimatsu Kensetsu Kogyo Kk Spud elevating device
KR20100069035A (en) * 2008-12-16 2010-06-24 박병도 Conveyor barge
KR20120019638A (en) * 2010-08-26 2012-03-07 대우조선해양 주식회사 Jack-up house for wind turbine installation vessel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283192U (en) * 1988-12-16 1990-06-27
JP2001354188A (en) * 2000-06-09 2001-12-25 Horimatsu Kensetsu Kogyo Kk Spud elevating device
KR20100069035A (en) * 2008-12-16 2010-06-24 박병도 Conveyor barge
KR20120019638A (en) * 2010-08-26 2012-03-07 대우조선해양 주식회사 Jack-up house for wind turbine installation vessel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102146416B1 (en) 2019-03-15 2020-08-20 최인규 Self-Locking Unit and Mechanical Jack-up Barge's up-and-down Machine having multiple braking, interlocking and single drive functions using of the the same

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