KR101761032B1 - The lift - Google Patents

The lift Download PDF

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Publication number
KR101761032B1
KR101761032B1 KR1020150190086A KR20150190086A KR101761032B1 KR 101761032 B1 KR101761032 B1 KR 101761032B1 KR 1020150190086 A KR1020150190086 A KR 1020150190086A KR 20150190086 A KR20150190086 A KR 20150190086A KR 101761032 B1 KR101761032 B1 KR 101761032B1
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KR
South Korea
Prior art keywords
lifting
frame
lowering
weight
lift
Prior art date
Application number
KR1020150190086A
Other languages
Korean (ko)
Other versions
KR20170079471A (en
Inventor
전해강
Original Assignee
전해강
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Publication date
Application filed by 전해강 filed Critical 전해강
Priority to KR1020150190086A priority Critical patent/KR101761032B1/en
Publication of KR20170079471A publication Critical patent/KR20170079471A/en
Application granted granted Critical
Publication of KR101761032B1 publication Critical patent/KR101761032B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07513—Details concerning the chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/08—Masts; Guides; Chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/22—Hydraulic devices or systems

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

The present invention relates to a lift, which can selectively use a light weight lifting unit and a weight lifting unit according to a working load, and maximizes a working height.
That is, according to the present invention, there is provided a lift comprising: a lift frame (10); a weight lift portion which is lifted and lowered along a frame lift rail (12) provided on both sides of the lift frame (10) A work fork 80 for lifting up and down an object to be lifted and lowered, a hydraulic fork (not shown) for supplying the hydraulic pressure to the hydraulic tank 51 to the lifting and lowering part, An operation unit for operating the hydraulic pump 52 according to a user's operation, and a wheel provided under the lift frame 10.
Therefore, according to the present invention, since the fork platform is provided with the weight lifting part and the light weight lifting part for lifting and lowering the fork lifting platform according to the working load and the working height, the light lifting part and the weight lifting part are selectively used depending on the working load, It is possible to maximize the height of the lifting and lowering according to the needs of the user.

Description

The lift {The lift}

The present invention relates to a lift, and more particularly, to a lift, which includes a lift frame and a weight lift portion that is lifted and lowered along a frame lift rail provided on both sides of the lift frame, A fork lifting base restrained by the lightweight lifting unit, a fork lifting and releasing unit for lifting the lifting target, a hydraulic pump for supplying the hydraulic pressure of the hydraulic tank to the lifting unit and the light lifting unit, An operation part for operating the hydraulic pump and a wheel provided under the lift frame to selectively use the light weight lifting part and the weight lifting part according to the working load and to maximize the working height .

In general, the lift allows the object or workpiece to be lifted to a certain height.

The lift as described above is constituted of a fork platform having a lift body and a working fork, a hydraulic pressure elevator for elevating and lowering the fork platform, and an operating part.

The lift as described above lifts up the fork platform to elevate the work fork so as to lift the object or the workpiece to a certain height according to the operation of the operation unit of the user.

However, the conventional lift has a problem in that an elevating load is set by the hydraulic elevating portion of the fork platform and the elevating and lowering height is limited even when an object with a small load is lifted.

Korean Utility Model Publication No. 20-2015-0004380

The present invention, however, can solve the problems such that excessive lifting force is applied and lifting height is limited even when lifting an object with a low load because lifting load by the hydraulic lifting part of the fork lifting platform is set in the conventional lifting .

That is, according to the present invention, there is provided a lift including: a lift frame; a weight lift portion that is lifted and lowered along a frame lift rail provided on both sides of the lift frame; a lightweight lift portion restrained by the weight lift portion; A hydraulic pump for supplying the hydraulic pressure of the hydraulic tank to the weight lifting unit and the light weight lifting unit, and a hydraulic pump for operating the hydraulic pump according to the user's operation An operation unit, and a wheel provided under the lift frame.

Therefore, according to the present invention, since the fork platform is provided with the weight lifting part and the light weight lifting part for lifting and lowering the fork lifting platform according to the working load and the working height, the light lifting part and the weight lifting part are selectively used depending on the working load, It is possible to maximize the height of the lifting and lowering according to the needs of the user.

1 is an exploded perspective view showing an embodiment of the present invention;
FIG. 2 is an exemplary perspective view of an embodiment of the present invention. FIG.
FIG. 3 is a perspective view showing a state of maximum elevation according to an embodiment of the present invention; FIG.
4 is a photograph of a sissy showing an embodiment of the present invention.
5 is a magnified perspective photograph showing an embodiment of the present invention.
FIG. 6 is a side perspective view showing an embodiment of the present invention.
FIGS. 7 and 8 illustrate examples of the operation of the present invention. FIG.
9 is a perspective view showing an embodiment according to the present invention.
Fig. 10 is a diagram showing an example of a main configuration of a lever interlocking lowering means according to the present invention; Fig.

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

The present invention is intended to selectively operate the lift according to the work load and the lift height of the workpiece. The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, The inventor should interpret the meaning and concept in accordance with the technical idea of the present invention based on the principle that the concept of the term can be appropriately defined in order to explain its own invention in the best way.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

That is, according to the present invention, there is provided a lift comprising: a lift frame (10); a weight lift portion which is lifted and lowered along a frame lift rail (12) provided on both sides of the lift frame (10) A work fork 80 for lifting up and down an object to be lifted and lowered, a hydraulic fork (not shown) for supplying the hydraulic pressure to the hydraulic tank 51 to the lifting and lowering part, An operation unit for operating the hydraulic pump 52 according to a user's operation, and a wheel provided under the lift frame 10.

The lift frame 10 includes a frame platform 11 provided on the ground side and a frame lift rail 12 protruding upward from both sides of the frame platform 11 and forming a rail extended inward, A support leg 13 protruding forward from a lower portion of the frame frame 11 and forming a supporting force on the ground when the frame is lifted up and a main drive wheel 14 protruding from the rear of the frame frame 11 for moving the lift frame 10 And a handle 15 formed to be able to grip the upper end of the frame lifting rails 12 at the upper side of the frame lifting and lowering rails 12 so as to be gripped by the user .

The weight lifting and lowering part includes a weight lifting and lowering rail 21 and a weight lifting and lowering frame 22 for binding the lower ends of the lifting and lowering rails 21 to the frame lifting and lowering rails 12, A weight lifting bar 23 to which a lifting force is applied for binding the upper ends of the both side weight lifting rails 21 and a lower lifting bar 23 to which a lower end is bound to a frame lifting bar 11 of the lift frame 10, And a weight lifting roller 25 provided on a side surface of the weight lifting rail 21 and rolling along the frame lifting rail 12. The weight lifting /

The weight lifting rail 21 is formed of a '' shaped member which forms a lifting and lowering rail groove to restrain the fork platform.

The lightweight lifting unit includes a lifting chain 32 whose one end is bound to a chain fixing base 31 provided at one end of the weight lifting unit and the other end is bound to a fork lifting base and a central portion of the lifting chain 32, A chain pulling windup portion 33 for applying a pulling force to the chain 32 to raise and lower the fork footsteps and a chain pulling pneumatic actuator 34 having a lower end fixed to the lower side of the weight lifting portion and an upper end fixed to the chain pulling up take- ).

The fork lifting frame 41 includes a fork lifting frame 41 having both sides thereof restrained by the weight lifting rails 21 of the lifting and lowering unit and vertically elevated and lowered and a fork lifting frame 41, And a fork lifting roller 43 provided at both sides of the fork lifting frame 41 for lifting and raising the weight along the lifting rails 21 of the weight lifting and lowering part.

The fork coupling part 42 is provided with a fork coupling rod 42a which binds the work fork 80 vertically and horizontally so as to be slidable.

The operating section is provided with a lifting and lowering operation lever 61 for controlling the supply of the up and down hydraulic pressure and the down and down hydraulic pressure to the lifting and pumping actuator 24 of the lifting and lowering part, and a chain pulling and pneumatic actuator 34 of the light lifting and lowering part. And a lightweight lifting operation lever 62 for controlling the supply of hydraulic pressure.

On the other hand, in the practice of the present invention, the weight lifting section and the lightweight lifting section are operated to descend only when the lever is operated to descend, and in the no-operation state, at least one of the weight lifting operation lever 61 and the light lifting operation lever 62 And a lever interlocking lowering means for restricting the lowering of the lowering force.

The lever interlocking lowering means includes a weight lifting rail 21 and a downward restricting hole 71 formed at equal intervals on the light weight raising and lowering rails and a lower limit restricting hole 71 A lifting limit locking mechanism 72 for releasing the restraint of the light weight lifting operation lever 61 and engaging in the lifting operation, a lifting operation protrusion 73 protruding from one side of the lever middle portion of the weight lifting operation lever 61 and the light lifting operation lever 62, A release operation link 74 having an elongated operative hole so as to be restricted by the release movable protrusion 73 so as to be pulled only when the lever is lowered and is slid during the lifting operation, And a cable 75 for releasing the downwardly-restricting locking mechanism 72.

The downward limit locker 72 is fixedly inserted into the release movable protrusion 73 by its own weight or is elastically rotated by the elastic force of the spring to be inserted.

The lower limit locking locking hole 72 is composed of a locking bar 72a formed with a hinge hole hinged at one end and a lower limiting protrusion 72b protruding from the end of the locking bar 72a by a downward restricting hole 71 will be.

The downward restricting protrusion 72b is formed with a locking surface for supporting the downward restricting hole 71 on the upper side and a releasing sloped surface for generating a releasing action force by the upward force of the downward restricting hole 71 is formed on the lower side will be.

Hereinafter, the operation of the present invention will be described.

As described above, in the lift, there are provided a lift frame 10 and a weight lift portion that is lifted and lowered along a frame lift rail 12 provided on both sides of the lift frame 10, A working fork 80 for lifting the object to be lifted and lowered, a hydraulic forklift (not shown) for supplying the hydraulic pressure of the hydraulic tank 51 to the weight lifting unit and the lightweight lifting unit When the present invention is applied by applying the present invention composed of the hydraulic pump 52, the operation part for operating the hydraulic pump 52 according to the user's operation and the wheel provided under the lift frame 10, When the object is to be lifted, the light lift operation lever 62 is operated to supply the hydraulic pressure so that the chain pull hydraulic actuator 34 of the light weight platform lifts up.

As described above, when hydraulic pressure is supplied to the chain pulling pneumatic / hydraulic actuator 34 so as to be lifted up, the lifting chain 32 is pulled by the chain pulling winding portion 33 provided at the end of the chain pulling pneumatic / hydraulic actuator 34, The platform is elevated along the weight lifting rail 21 of the weight lifting and lowering part to raise the light lifting target.

In order to raise the lifting height of the light weight lifting object, when the weight lifting and lowering operation lever 61 is operated to supply the hydraulic pressure to the weight lifting and pumping hydraulic actuator 24 so as to be lifted up, The weight lifting platform is lifted by the lifting platform 24 so that the lifting target lifted by the lifting platform is elevated.

In order to lift an object to be lifted by using the present invention, the weight lifting / lowering lever 61 is operated so that the lifting / pumping actuator 24 is lifted When the hydraulic pressure is supplied to the work fork 80, the weight lifting and lowering actuator 24 elevates the weight lifting platform and lifts the weight of the work lifting target 80 mounted on the work fork 80.

On the other hand, in the practice of the present invention, the weight lifting portion and the light lifting portion are operated to descend only at the time of the operation of lowering the respective levers to at least one of the weight lifting operation lever 61 and the light lifting operation lever 62, The lever interlocking lowering means includes a weight lifting rail (21) and a lower limit restricting hole (71) formed at regular intervals in the light weight raising and lowering rail, a frame lift rail (12), and a fork interlocking lowering means When the lifting operation of the lifting platform is performed, the lifting and lowering operation lever 61 and the lever of the light lifting operation lever 62 are released from the restricting hole 71, A releasing operation link 73 projecting from one side of the central portion and a releasing operation link 74 having an elongated operable hole so as to be pulled only when the respective lever is lowered and restrained by the releasing movable projection 73, ) And the release operation link 74 When the weight lift operation lever 61 or the light lift operation lever 62 is not operated, the weight of the weight lifting platform can be adjusted to the weight The lowering limiting hole 71 formed on the lifting rail 21 is restricted by the lowering limiting locking member 72 so that the lifting and lowering operation of the lifting / The lifted state of the object is safely maintained.

When the operation lever is lowered to lower the lifted object lifted by the operation fork 80, the release operation protrusion 73 provided on the side of the lever in accordance with the lowering operation of the respective operation lever, The release operation link 74 is pulled.

At this time, the operation force of the disengagement operation link 74 is operated to be released by the cable 75 provided between the disengagement operation link 74 and the descending restriction locking slot 72 And the weight lifting platform or the fork platform is safely lowered and operated in accordance with the descending operation of the operation lever to lower the lifting target.

10: Lift frame
11: frame frame 12: frame lift rail
13: support leg 14: drive frame
15: Handle
21: Weight lifting rail 22: Weight lifting frame
23: Gravity lifting bar 24: Gravity lifting and pumping actuator
25: Weight lifting roller
31: chain guide 32: lifting chain
33: chain pull winding part 34: chain pull hydraulic actuator
41: fork lifting frame 42: fork binding portion 42a: fork binding bar
43: Fork lift roller
51: Hydraulic tank 52: Hydraulic pump
61: weight lift control lever 62: lightweight lift control lever
71: descending restriction hole 72: descending restriction locking hole
72a: Locking bar 72b:
73: release movable projection 74: release operation link
75: Cable
80: Operation fork

Claims (3)

In the lift;
A weight lifting section that is lifted and lowered along a frame lift rail 12 provided at both sides of the lift frame 10, a lightweight lifting section that is restrained by the lifting section, A hydraulic pump 52 for supplying the hydraulic pressure of the hydraulic tank 51 to the weight lifting unit and the lightweight lifting unit, a hydraulic pump 52 for supplying hydraulic pressure to the hydraulic lifting unit, An operation unit for operating the hydraulic pump 52 according to an operation, and a wheel provided under the lift frame 10,
The lift frame 10 includes a frame frame 11 provided on the ground side and a frame lift rail 12 protruding upward from both sides of the frame frame 11 and forming a rail extended inward, A supporting foot 13 protruding forward from a lower portion of the frame 11 to form a supporting force on the floor when the vehicle ascends and descends and a main driving wheel protruding from the rear of the frame sole 11 for moving the lift frame 10 A driving frame 14 and a handle 15 formed in such a manner as to be able to grip the upper end of the frame lift railing 12 on the upper side of the frame lift rail 12,

The weight lifting and lowering unit includes a weight lifting and lowering rail 21 and a weight lifting and lowering frame 22 that bind the lower ends of the lifting and lowering rails 21 and 21 to be lifted up and down by the frame lifting and lowering rails 12 of the lift frame 10, A weight lifting bar 23 for lifting the upper ends of the both side weight lifting rails 21 and a lower lifting bar 23 for lifting and lowering the lifting bars 23, And a weight lifting roller 25 provided on a side surface of the weight lifting rail 21 and rolling along the frame lifting rail 12,
The light weight lifting unit includes a lifting chain 32 whose one end is bound to a chain fixing base 31 provided at one end of the weight lifting unit and the other end is bound to a fork lifting base and a lifting chain 32 And a chain pulling pneumatic actuator (34) having a lower end fixed to a lower side of the weight lifting unit and an upper end fixed to the chain pulling up winding unit .
The method of claim 1, further comprising:
The fork lifting frame includes a fork lifting frame 41 having both sides restrained by the weight lifting rails 21 of the lifting and lowering unit and vertically elevated and lowered and a fork supporting frame 41 for holding and supporting the working fork 80 on the front side of the fork lifting frame 41. [ And a fork lifting roller (43) provided on both sides of the fork lifting frame (41) for lifting and raising the lifting rail (21) along the weight lifting and lowering rail (21).
The method of claim 1, further comprising:
The operation portion is provided with a weight lift operation lever 61 for controlling the supply of the elevation hydraulic pressure and the supply of the hydraulic pressure to the weight lifting and lowering hydraulic actuator 24 of the weight lifting and lowering portion and a chain pulling hydraulic actuator 34 for the light lifting portion, And a light-weight elevating operation lever 62 for controlling the light-
The weight lifting and lowering operation lever 61 and the light lifting and lowering lever 62 are provided with a lever interlocking lowering means for lowering the weight lifting and lowering portion and the light weight lifting and lowering portion only at the time of the lowering operation of each lever, , ≪ / RTI &
The lever interlocking lowering means includes a weight lifting rail 21 and a downward restricting hole 71 formed at equal intervals on the light weight raising and lowering rails and a lower limit restricting hole 71 A lifting limit locking mechanism 72 for releasing the restraint of the light weight lifting operation lever 61 and engaging in the lifting operation, a lifting operation protrusion 73 protruding from one side of the lever middle portion of the weight lifting operation lever 61 and the light lifting operation lever 62, A release operation link 74 having an elongated operative hole so as to be restricted by the release movable protrusion 73 so as to be pulled only when the lever is lowered and is slid during the lifting operation, And a cable (75) for releasing the lowering limiting locking member (72).
KR1020150190086A 2015-12-30 2015-12-30 The lift KR101761032B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150190086A KR101761032B1 (en) 2015-12-30 2015-12-30 The lift

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150190086A KR101761032B1 (en) 2015-12-30 2015-12-30 The lift

Publications (2)

Publication Number Publication Date
KR20170079471A KR20170079471A (en) 2017-07-10
KR101761032B1 true KR101761032B1 (en) 2017-07-24

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102145817B1 (en) * 2019-02-26 2020-08-19 (주)동우엠이시 Lifting-up device for lifting weights
KR102016935B1 (en) * 2019-04-23 2019-09-02 진재경 Electric motion type lifting apparatus for improving usablity and transfering ingrey roll of conveyor belt
CN110540150A (en) * 2019-10-09 2019-12-06 江苏地龙重型机械有限公司 Corner formula fork car (buggy) device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003026397A (en) 2001-07-13 2003-01-29 Shimizu Corp Beam system form fitting lifter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003026397A (en) 2001-07-13 2003-01-29 Shimizu Corp Beam system form fitting lifter

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