KR20130111686A - Hydraulic boat trailer - Google Patents

Hydraulic boat trailer Download PDF

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Publication number
KR20130111686A
KR20130111686A KR1020120033736A KR20120033736A KR20130111686A KR 20130111686 A KR20130111686 A KR 20130111686A KR 1020120033736 A KR1020120033736 A KR 1020120033736A KR 20120033736 A KR20120033736 A KR 20120033736A KR 20130111686 A KR20130111686 A KR 20130111686A
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KR
South Korea
Prior art keywords
boat
unit
hydraulic
transfer
trailer
Prior art date
Application number
KR1020120033736A
Other languages
Korean (ko)
Inventor
허영승
Original Assignee
허영승
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Priority to KR1020120033736A priority Critical patent/KR20130111686A/en
Publication of KR20130111686A publication Critical patent/KR20130111686A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
    • B60P1/16—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/64—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading the load supporting or containing element being readily removable
    • B60P1/6409—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading the load supporting or containing element being readily removable details, accessories, auxiliary devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/06—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles
    • B60P3/10—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles for carrying boats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
    • B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
    • B60S9/10—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting by fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses
    • B60Y2200/147—Trailers, e.g. full trailers or caravans

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Revetment (AREA)

Abstract

PURPOSE: A hydraulic boat trailer is provided to horizontally and vertically transfer a boat through a transfer unit and a winch unit of a hydraulic method, easily collect the boat, and put the boat into water in a vertical wall such as a breakwater. CONSTITUTION: A hydraulic boat trailer includes a mounting unit, a transfer unit (200), outrigger units (300a,300b) of a hydraulic method, a winch unit (400), a hydraulic pump (500), a control unit (600), and a power supply unit (700). The mounting unit includes a mounting frame (110) and a fixing unit (120). The transfer unit is connected to the boat located on the mounting unit through a lifting wire (40) and enables a boat to be horizontally and vertically transferred with the hydraulic method. The outrigger unit of the hydraulic method is individually installed on the front and the rear of a body frame. The winch unit includes a hydraulic motor (410). The hydraulic pump supplies fluid pressure to the transfer unit, the outrigger units, and the winch unit. The control unit controls the transfer unit, the outrigger unit, and the winch unit by the control of a control lever (610). The power supply unit supplies power to the hydraulic pump and the control unit.

Description

 Hydraulic boat trailer

The present invention relates to a boat trailer, and more specifically, to the front and rear and the lifting and lowering of the boat through the hydraulic transfer portion and the winch portion to facilitate the sea acquisition and recovery operation of the boat even in a straight wall such as a breakwater. One hydraulic boat trailer.

Recently Development of the leisure industry Healthcare and For leisure, an increasing number of people enjoy marine leisure means such as leisure boats, yachts and jet-skis on the sea.

In general, the marine leisure means is provided to the user commercially on the beach or a marina, there is a problem that the marine leisure means are damaged or stolen due to the waves or surrounding vessels. In addition, in addition to the above problems, as the number of privately owned boats and yachts has recently increased, the number of users who directly transport vehicles such as trailers to the sea, transport them to the sea, obtain them, enjoy marine leisure, and recover them to trailers is increasing. .

Accordingly, various means of transport for marine leisure means such as trailers have been developed and distributed to general users.

For example, the Republic of Korea Registered Utility Model Publication No. 20-0427998 (October 4, 2006) is connected to the trailer is provided with a wheel on the bottom and the support plate is formed on the whole, the hinge portion formed in the upper portion of the rear of the trailer In the leisure boat trailer consisting of a dump for lifting and lowering the boat while pivoting around the hinge and moving up and down, the hydraulic jack unit 110 is fixed to the support plate formed on the body of the trailer and supplies hydraulic pressure )and; A valve unit (118) fixedly installed at one side of the body of the trailer and connected to the hydraulic jack unit to supply and distribute hydraulic pressure for raising and lowering the dump; A dump lift unit (114) installed at all intermediate portions of the trailer and the dump to move the dump up and down by using the hydraulic pressure supplied from the valve unit; Hydraulic lifting trailer is proposed, characterized in that consisting of a pair of roller lifting unit 116 is installed in the lower portion of the dump to raise and lower the roller for rolling the boat using the hydraulic pressure supplied from the valve unit (See FIG. 1).

However, the proposed design allows the boat to be obtained on a slope-formed sea through a dump lifting unit, but when the sea is obtained, a separate offshore rail is installed on the slope or the trailer is partially locked in river or sea water. There is discomfort to be done.

In addition, since the dump lifting unit is lifted only within a certain angle, the problem of the place where the boat must be transported to the sea on which the slope is formed is impossible because the boat can not be obtained and retrieved from the straight wall such as a breakwater. Still remains.

Accordingly, the present invention has been made to solve the above problems, and more specifically, the front and rear and the lifting of the boat through the hydraulic transfer portion and the winch can be transferred to the direct wall such as a breakwater It is also an object of the present invention to provide a hydraulic boat trailer that facilitates the marine acquisition and recovery of the boat.

According to a feature of the present invention for achieving the above object, the wheel portion 20 is formed in the lower side of both sides of the body frame 10 for the towing of the leisure boat, the rear side of the vehicle at the front end of the body frame In a boat trailer having a towing portion 30 configured to be connected to and secured thereto, a seating frame 110 for positioning the boat 1 is connected and fastened to an upper portion of the body frame of the boat trailer. A seating part 100 provided with a fixing means 120 so as not to be separated and damaged by an external impact; A transfer part 200 connected to the boat located in the seating part 100 via a lifting wire 40 and allowing the boat to move forward and backward and lift by a hydraulic method; A hydraulic outrigger unit (300a, 300b) installed in front and rear of the body frame so as to support a vertical load applied to the front or rear of the boat trailer when the boat is transported through the transfer unit; A winch unit 400 having a hydraulic motor 410 for winding up or unwinding the lifting wire of the transfer unit; A hydraulic pump 500 for supplying hydraulic pressure to the transfer part, the outrigger part, and the winch part; Provided is a hydraulic boat trailer, characterized in that the control unit 600 is configured such that the transfer unit, the outrigger unit and the winch unit are controlled by the operation of a control lever (610).

Preferably, the transfer unit 200, "

Figure pat00001
"Is made of a metal pipe of the shape, the top of the tip portion (211) has a winch 400 and the lifting wire 40 to allow the boat to be lifted and transported, and on both sides of the lower support (212a, 212b) A bent portion 214 is formed, and one side includes a transport frame 210 formed with a first hinge portion 215 to be rotated within a predetermined angle in a fixed state behind the body frame 10 It features.

Preferably, the second hinge portion 217 on both sides of the support frame (210), 212b to be bent in one direction within a certain angle by the contracted expansion of the first hydraulic cylinder 216. ) Is formed.

Preferably, the transfer part 200, the transfer frame 210 is rotated within a predetermined angle so that the front and rear transfer of the boat to one side so as to be rotated in a state fixed to the body frame on one side A hinge part 221 is formed, and the other side includes a second hydraulic cylinder 220 having a fourth hinge part 222 formed to be rotatable in a fixed state to the transfer frame.

Preferably, the boat trailer, the hydraulic pump 500 and the control unit 600 is characterized in that it comprises a power supply 700 for supplying power.

According to the hydraulic boat trailer of the present invention, there are the following effects.

By the hydraulic conveying part and the winch part, it is possible to transfer the boat forward, rearward and lifting,

(1) Solving the problem of the location limitation of the conventional boat trailer, in addition to the sea where the slope is formed, it is easy to obtain and retrieve the sea at the direct wall such as a breakwater.

(2) It is not necessary to install a separate rail when acquiring the boat on the sea where the slope is formed, and by working away from the sea, the corrosion of the boat trailer due to the sea water can be prevented.

(3) By placing a bevel inclined at an angle to the transport frame of the conveying part, the separation distance between the boat and the boat trailer can be extended during the sea acquisition and retrieval of the boat, and the boat can be worked closer to the sea.

(4) Even beginners can easily work by controlling the forward, rearward, and lifting of the boat by simply operating the control lever.

1 is a view showing a conventional hydraulic lifting trailer
2 is a view showing the overall configuration of a hydraulic boat trailer according to a preferred embodiment of the present invention
Figure 3 is a view showing a coupling structure of the seating portion according to a preferred embodiment of the present invention
Figure 4 is a view showing a coupling structure of the transfer unit and the winch according to a preferred embodiment of the present invention
5A and 5B show A-TYPE / B-TYPE transfer frames of the transfer unit shown in FIG.
6 is a view showing the sea intake operation on the slope of the boat through the hydraulic boat trailer according to a preferred embodiment of the present invention
7 is a view showing the sea intake operation in the direct wall of the boat through a hydraulic boat trailer according to a preferred embodiment of the present invention

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals refer to like elements throughout. Although the same reference numerals are used in the different drawings, the same reference numerals are used throughout the drawings. The prior art should be interpreted by itself. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

2 to 7, the main technical configuration of the hydraulic boat trailer according to the preferred embodiment of the present invention, the seating unit 100, the conveying unit 200, outrigger unit (outrigger unit (300a, 300b), winch) The unit (winch unit, 400), the hydraulic pump 500, the control unit 600, the power supply 700 is made up.

First, prior to explaining the main technical configuration of the hydraulic boat trailer of the present invention in detail, the conventional boat trailer including the boat trailer of the present invention is the both sides of the body frame 10 for the towing of the leisure boat (1) The wheel part 20 is formed in the lower part, and the tow part 30 which is connected and fixed with the rear side of the vehicle 3 is formed in the front-end | tip of a body frame.

2 and 3, the seating part 100 is a means for positioning and fixing the boat 1, and a seating frame 110 for positioning the boat includes a body frame 10 of the boat trailer. It is connected and fastened to the upper portion, the fixing means 120 is formed so as not to be separated and damaged by the external impact during the towing of the boat.

Here, the seating frame 110 of the seating portion is attached to the buffer adhesive surface, such as rubber to the boat adhesive surface so that the boat (1) is not damaged by the external impact.

In addition, the seating part 100 has a "V" shaped frame 130 between the seating frames 110 connected and fastened to the body frame so as to correspond to the pointed bottom surface of the boat 1 so that the boat is seated on the seating part. Make sure that they are placed in close contact. Such a "V" shaped frame may be provided with rails on both sides and have a hinge at the center thereof so that the "V" shaped frame may correspond to the bottom slope of the boat.

In addition, the fixing means 120 by placing a plurality of belt-type wire in the seating portion to place the boat in the seating portion, then wound the wire around the boat and adjust the length with the belt, the boat can be fixed to the seating portion Make sure The fastening means using the belt-type wire is no longer described as a well-known technique as a cargo fastening means of the cargo hold, and the fastening means is not limited to the belt-type wire, but the wire clip and hook (hook) such as a hook (hook) Any means that can be fixed to the seating portion is applicable.

2, 4, and 5, the transfer unit 200 is a means for horizontally and vertically transferring the boat 10 located in the seating unit 100, and the boat and the lifting wire located in the seating unit. It is connected through the 40, and the hydraulic method allows the boat to be moved forward and backward and ascending and lowering, so that the boats can easily acquire and recover the sea even in a straight wall such as a breakwater.

Here, the transfer unit 200, "

Figure pat00002
"Is made of a metal pipe of the shape, the top of the tip portion (211) has a winch 400 and the lifting wire 40 to allow the boat to be lifted and transported, and on both sides of the lower support (212a, 212b) A bent portion 214 is formed, and one side has a transport frame 210 having a first hinge portion 215 formed to rotate within a predetermined angle while being fixed to the rear of the body frame 10.

In addition, the transport frame 210 is made of an A-TYPE transport frame having a bent portion 214 formed to be inclined at a predetermined angle on both sides (212a, 212b) (see Fig. 5 (a)), The bending portion may be manufactured by a B-type transfer frame in which a second hinge portion 217 is formed to be rotated by contraction and expansion of the first hydraulic cylinder 216 so that both pillars are bent in one direction within a predetermined angle. (See FIG. 5B).

In addition, the lifting wire 40 has an eye hook (eye hook, 60) at the end, by coupling a plurality of eye bolts (eyebolt, 2) to the boat, by connecting the eye hook and the eye bolt to each other Allow the boat to be connected to the conveying part via a conveying wire.

In other words, the lifting wire 40 is connected to the winch 400, which will be described later, and the first wire 40a of one strand having an eye hook 60 formed at an end thereof, and the first wire 40a. An annular fastening portion 70 is formed at the point to be connected to the eye bolt 2 of the boat, and is composed of a plurality of second wires 40b at which the eye hook 60 is formed.

In addition, the transfer unit 200, A third hinge part 221 is formed at one side to be pivotally fixed to the body frame 10 so that the transport frame 210 is rotated within a predetermined angle to enable forward and backward transport of the boat. The other side further includes a second hydraulic cylinder 220 having a fourth hinge portion 222 formed to be rotatable in a fixed state to the transfer frame.

On the other hand, the transfer unit 200 "

Figure pat00003
"The reason for the shape is to place a single winch 400 on the pointed portion 211 of the top and at the same time to apply a uniform force to the vertical load of the boat through the lifting wire 40 The reason why the second hinge portion 217 is formed in both ends of the lower posts 212a and 212b so as to be bent in one direction by the bending portion 214 or the first hydraulic cylinder 216 within a predetermined angle is provided. When the boat is located at the rear of the boat trailer, the two shores are bent in the sea direction so that the boat can be closer to the sea direction, and the horizontal turning radius of the boat is secured so that the boat can easily acquire and retrieve the sea. to be.

2 and 3, the outrigger units 300a and 300b may support vertical loads applied to the front or rear of the boat trailer during forward, rearward, and lift transfer of the boat through the transfer unit 200. Hydraulic support means are respectively installed in front and rear of the body frame to be able to.

In other words, the outrigger parts 300a and 300b allow the body to be contracted and expanded by a hydraulic cylinder, thereby keeping both outrigger parts installed in front and rear of the body frame in a contracted state when the boat trailer moves. When it is obtained on the shore to expand the outrigger portion 300b installed in the rear of the body frame to contact the ground to support the vertical load applied to the rear of the boat trailer. In addition, when the boat is recovered from the shore, both the outrigger portions 300a and 300b provided at the front and the rear of the body frame are expanded to be in contact with the ground so as to support the vertical load applied to the front and rear of the boat trailer.

Referring again to FIGS. 2 and 4 and 5, the winch unit 400 is a means for allowing the lifting wire 40 of the transfer unit 200 to be wound or unwound, and the hydraulic motor 410. Power is taken from the lifting wire wound on the cylindrical drum to wind or unwind.

Wherein the winch 400 is to use a sufficient output torque (torque) and the forward / reverse rotation of the hydraulic motor 410 capable of withstanding the boat load during lifting and transport of the boat, and to reduce the rotational speed of the hydraulic motor Reduce gear is provided.

Referring to FIG. 2, the hydraulic pump 500 is a means for supplying hydraulic pressure to the transfer unit 200, the outrigger units 300a and 300b, and the winch unit 400. Hydraulic pressure is supplied to hydraulic actuators such as the hydraulic cylinder 220 and the hydraulic motor 410.

The control unit 600 is a means for allowing the transfer unit, the outrigger unit and the winch unit to be controlled by the control lever (610) operation, formed in each hydraulic supply line 50 connected between the hydraulic pump and the hydraulic actuator. The flow rate control valve and the direction change valve (not shown) are electronically controlled to perform driving / stopping control and driving direction control of the hydraulic actuator.

In other words, the control unit 600 can control the driving / stop of the hydraulic actuator by opening and closing the flow control valve in the control lever (610) operation, the hydraulic cylinder 220 by the control of the direction switching valve ) Contraction / expansion control and the rotational direction control of the hydraulic motor (410).

The power supply unit 700 is a means for supplying power to the hydraulic pump and the control unit by a battery or other power supply means to operate the hydraulic actuator.

On the other hand, Figures 6 and 7 is a view showing the marine acquisition operation of the boat through the hydraulic boat trailer according to an embodiment of the present invention.

First, when the boat is obtained at sea, an outrier provided at the rear of the body frame 10 by manipulating a control lever 610 of the control unit in a state in which the fixing unit 120 of the seating unit 100 is released. Inflation 300b is inflated so that the lower surface of the outrigger portion is in contact with the ground, and then the second hydraulic cylinder 220 of the conveying portion 200 is inflated to transport the boat 1 to the rear of the boat trailer. When the transport frame 210 of the transport unit is rotated in the sea direction, the boat may be approached to the sea by the bent portion of the transport frame.

Next, after the operation of the hydraulic cylinder by releasing the transport wire 40 through the winch 400 to the sea so that the boat descends from the boat trailer to the sea, where the slope is formed in the acquisition site of the boat. (See FIG. 6) and where the straight wall such as the breakwater is formed (see FIG. 7), the boat can be obtained at sea regardless of the place.When the boat is obtained at sea, the lifting wires connected to the boat are released by Complete the marine acquisition of the boat.

In addition, when a boat is collect | recovered from the sea, since what is necessary is just to carry out in the reverse order of the operation of obtaining the boat sea mentioned above, detailed description is abbreviate | omitted.

On the other hand, in the case of sea acquisition and recovery of the aforementioned boat, the eyehook (60) attached to the transfer wire 40 is typically possible to rotate 360 ° by an external force, so the gap between the direct wall and the boat is narrow The fold of the transfer frame can be operated by rotating the boat in parallel with the straight wall without the boat contacting the shore.

As described above, the hydraulic boat trailer according to the preferred embodiment of the present invention is capable of transporting the boat forward, rearward and elevating through the hydraulic transport unit and the winch unit, thereby solving the problem of the limitation of the conventional boat trailer. In addition to the sea on which the slope is formed, it is easy to obtain and retrieve the boat from the straight wall such as a breakwater, and there is no need to install a separate rail when acquiring the boat on the sea where the slope is formed. Corrosion of the boat trailer due to this can be prevented, and by controlling the forward, rearward and lifting of the boat only by the operation of a control lever, there is an effect that even a beginner can easily work.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

1: boat 2: eyebolt
3: vehicle 10: body frame
20: wheel portion 30: towing portion
40: transfer wire 40a: first wire
40b: second wire 50: hydraulic supply line
60: eyehook 70: annular fastening
100: seating unit 110: seating frame
120: fixing means 130: "V" shaped frame
200: transfer unit 210: transfer frame
211: point 212a and 212b: prop
215: first hinge portion 216: first hydraulic cylinder
217: second hinge portion 220: second hydraulic cylinder
221: third hinge portion 222: fourth hinge portion
300a, 300b: outrigger unit
400: winch unit 410: hydraulic motor
500: hydraulic pump 600: control unit
610: control lever
700: power supply

Claims (5)

Wheels 20 are formed at both lower portions of both sides of the body frame 10 for the towing of the leisure boat, and a boat having a towing portion 30 connected to and fixed to the rear side of the vehicle at the front end of the body frame. In the trailer,
A seating frame 110 for positioning the boat 1 is connected and fastened to an upper portion of the body frame of the boat trailer, and a seating means 120 is provided so that the boat trailer is not detached or damaged by an external shock when the boat is towed. Section 100;
A transfer part 200 connected to the boat located in the seating part 100 via a lifting wire 40 and allowing the boat to move forward and backward and lift by a hydraulic method;
A hydraulic outrigger unit (300a, 300b) installed in front and rear of the body frame so as to support a vertical load applied to the front or rear of the boat trailer when the boat is transported through the transfer unit;
A winch unit 400 having a hydraulic motor 410 for winding up or unwinding the lifting wire of the transfer unit;
A hydraulic pump 500 for supplying hydraulic pressure to the transfer part, the outrigger part, and the winch part;
And a control unit 600 configured to control the transfer unit, the outrigger unit, and the winch unit by manipulation of a control lever 610.
The method according to claim 1,
The transfer unit 200, "
Figure pat00004
"Is made of a metal pipe of the shape, the top of the tip portion (211) has a winch 400 and the lifting wire 40 to allow the boat to be lifted and transported, and on both sides of the lower support (212a, 212b) A bent portion 214 is formed, and one side includes a transport frame 210 formed with a first hinge portion 215 to be rotated within a predetermined angle in a fixed state behind the body frame 10 Hydraulic boat trailer featured.
The method of claim 2,
The second hinge portion 217 is formed on both side posts 212a and 212b of the transfer frame 210 so as to be bent in only one direction within a predetermined angle by contraction and expansion of the first hydraulic cylinder 216. Hydraulic boat trailer, characterized in that.
The method of claim 2,
The transfer part 200, the third hinge portion 221 to be rotated in a state fixed to the body frame on one side so that the transfer frame 210 is rotated within a predetermined angle to enable forward and rearward transfer of the boat. Is formed, and the other side includes a second hydraulic cylinder (220) having a fourth hinge portion (222) formed to be rotatable in a fixed state to the transport frame.
The method according to claim 1,
The boat trailer, the hydraulic pump 500 and a hydraulic boat trailer, characterized in that it comprises a power supply 700 for supplying power to the control unit 600.
KR1020120033736A 2012-04-02 2012-04-02 Hydraulic boat trailer KR20130111686A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019164070A1 (en) * 2018-02-22 2019-08-29 한국전력공사 Folding type electric pole and folding type electric pole installing device having same
KR102307648B1 (en) 2021-07-27 2021-10-01 주식회사 청진 Trailer lift

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019164070A1 (en) * 2018-02-22 2019-08-29 한국전력공사 Folding type electric pole and folding type electric pole installing device having same
KR102307648B1 (en) 2021-07-27 2021-10-01 주식회사 청진 Trailer lift

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