KR20020050324A - Counterweight sliding system by hydraulics for forklift - Google Patents

Counterweight sliding system by hydraulics for forklift Download PDF

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Publication number
KR20020050324A
KR20020050324A KR1020000079446A KR20000079446A KR20020050324A KR 20020050324 A KR20020050324 A KR 20020050324A KR 1020000079446 A KR1020000079446 A KR 1020000079446A KR 20000079446 A KR20000079446 A KR 20000079446A KR 20020050324 A KR20020050324 A KR 20020050324A
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KR
South Korea
Prior art keywords
forklift
hydraulic
counterweight
cylinder
frame
Prior art date
Application number
KR1020000079446A
Other languages
Korean (ko)
Inventor
박연철
Original Assignee
김형벽ㅂ
현대중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김형벽ㅂ, 현대중공업 주식회사 filed Critical 김형벽ㅂ
Priority to KR1020000079446A priority Critical patent/KR20020050324A/en
Publication of KR20020050324A publication Critical patent/KR20020050324A/en

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Classifications

    • 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
    • B66F9/07554—Counterweights
    • 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
    • B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
    • B66F17/003—Safety devices, e.g. for limiting or indicating lifting force for fork-lift trucks
    • 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
    • B66F9/07504—Accessories, e.g. for towing, charging, locking
    • 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
    • B60Y2200/15—Fork lift trucks, Industrial trucks

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

Abstract

PURPOSE: System for transferring a forklift conveyer weight with hydraulic pressure is provided to safely load or unload material by the forklift and to improve safety of the forklift. CONSTITUTION: System for transmitting a forklift conveyer weight by hydraulic pressure comprises a counter weight(1) sliding on a frame; a sliding cylinder(3) connected to the frame and the counter weight; an electric harness(8) moving a spool of a solenoid valve(4) while moving a toggle switch into a rear portion; a lifter lever(5) pushed forward to move the spool of the solenoid valve into a cylinder control direction; a hydraulic hose(7)passing fluid generated from a hydraulic pump; and a control valve(2) controlling a cylinder. The fluid is approached into the sliding cylinder by passing the solenoid valve and the hydraulic hose from the hydraulic pump. The hydraulic pressure moves the counter weight into a rear portion of the frame. Thereby, the system for transmitting the forklift conveyer weight by the hydraulic pressure safely loads or unloads material by the forklift.

Description

유압에 의한 지게차 카운터웨이트 이송 시스템{Counterweight sliding system by hydraulics for forklift}Counterweight sliding system by hydraulics for hydraulic lift forklift

본 발명은 지게차의 장비 안정도 향상을 위한 시스템으로 더 상세하게는 작업물을 인양, 하역 또는 중량물 이동작업시 작업자가 보다 안전하게 작업할 수 있도록 카운터웨이트를 이동할 수 있게 발명된 유압 시스템이다.The present invention is a system for improving the equipment stability of the forklift, more specifically, the hydraulic system was invented to move the counterweight so that the operator can work more safely when lifting, unloading or moving the workpiece.

종래에는 지게차의 기본형태가 카운터웨이트를 프레임에 조립한 후 볼트로 고정하여 카운터웨이트가 움직이지 않게 하였으므로 중량물을 인양, 하역 또는 작업물 이동작업시 장비의 안정도가 떨어져 작업자에게 치명적인 안전사고가 발생할 수 있는 문제점이 있었다.Conventionally, the basic form of the forklift truck has assembled the counterweight into the frame and fixed it with bolts so that the counterweight does not move. Therefore, the safety of the equipment may be lowered during lifting, unloading or moving the workpiece, which may result in fatal safety accidents. There was a problem.

본 발명은 상기한 문제점을 해결하기 위하여 안출한 것으로서, 그 목적은 지게차로 작업물을 인양, 하역 또는 이동시 작업자가 보다 안전하게 작업할 수 있도록 장비의 안전도 향상하는 것을 제공하는 것이다.The present invention has been made to solve the above problems, an object of the present invention is to provide an improved safety of the equipment so that the operator can work more safely when lifting, unloading or moving the workpiece with a forklift.

적재물이 소형일 경우에는 장비 기본사양으로 작업하여도 안정도에서는 문제가 되지 않으나 중량물 작업시 작업자가 안전도를 향상시켜 작업할 경우 토글 스위치를 중립위치에서 후방위치로 온하면 전기 하네스로 솔레노이드 밸브의 스풀을 움직여 실린더 작동방향으로 변환하고 리프트 레버를 앞쪽으로 밀면 컨트롤밸브의 스풀이 실린더 제어방향으로 움직여 유압펌프에서 발생된 유량이 유압호스 및 솔레노이드 밸브(4)를 통과하여 슬라이딩 실린더에 도달되면 유압의 힘으로 카운터웨이트를 슬라이딩 실린더의 행정거리만큼 프레임의 후방으로 이송한다.If the load is small, it is not a problem in stability even when working with the basic equipment specification.However, when working with heavy weight, the operator can turn the spool of the solenoid valve with an electric harness when the toggle switch is turned from the neutral position to the rear position. When moving to change the cylinder operation direction and pushing the lift lever forward, the spool of the control valve moves to the cylinder control direction, and when the flow generated from the hydraulic pump passes through the hydraulic hose and solenoid valve (4) and reaches the sliding cylinder, Transfer the counterweight to the rear of the frame by the stroke length of the sliding cylinder.

본 발명은 안전사고 예방을 제공함으로서 발명이 추구하는 목적을 달성할 수 있다.The present invention can achieve the object of the invention by providing a safety accident prevention.

도 1 은 본 발명으로 지게차 장비에 적용한 설치도1 is an installation diagram applied to the forklift equipment according to the present invention

도 2 는 본 발명의 유압회로도2 is a hydraulic circuit diagram of the present invention.

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

(1) : 카운터웨이트 (2) : 컨트롤밸브(1): counterweight (2): control valve

(3) : 슬라이딩 실린더 (4) : 솔레노이드 밸브(3): sliding cylinder (4): solenoid valve

(5) : 리프트 레버 (6) : 토글 스위치(5): lift lever (6): toggle switch

(7) : 유압호스 (8) : 전기 하네스(7): Hydraulic hose (8): Electric harness

(9) : 틸트 실린더 (10) : 조향장치(9): tilt cylinder (10): steering system

(11) : 유압펌프(11): Hydraulic pump

본 발명의 구성 및 작용을 설명하면 다음과 같다.Referring to the configuration and operation of the present invention.

도 1 은 본 발명으로 지게차 장비에 적용한 설치도1 is an installation diagram applied to the forklift equipment according to the present invention

도 2 는 본 발명의 유압회로 인바,2 is a hydraulic circuit invar of the present invention,

발명의 구성을 설명하면 프레임에 카운터웨이트(1)를 슬라이딩 될 수 있게 일반적으로 관용된 레일구조(도시생략)로 조립하고 슬라이딩 실린더(3)를 프레임과 카운터웨이트간에 연결하여 작동되도록 하고 실린더를 제어할 수 있는 컨트롤밸브(2), 솔레노이드 밸브(4), 리프트 레버(5), 토글스위치(6), 유압호스(7) 및 전기 하네스(8)로 구성한다.When explaining the configuration of the invention to assemble the sliding frame (not shown) commonly used to slide the counterweight (1) to the frame and to connect the sliding cylinder (3) between the frame and the counterweight to operate and control the cylinder Control valve (2), solenoid valve (4), lift lever (5), toggle switch (6), hydraulic hose (7) and electric harness (8).

상기와 같은 구성을 참조하여 본 발명의 작용을 설명하면 적재물이 소형일 경우에는 장비 기본사양으로 작업하여도 안정도에서는 문제가 되지 않으나 중량물 작업시 작업자가 안정도를 향상시켜 작업할 경우 토글 스위치(6)를 중립위치에서 후방위치로 온하면 전기 하네스(8)로 솔레노이드 밸브(4)의 스풀을 움직여 실린더 작동방향으로 변환하고 리프트 레버(5)를 앞쪽으로 밀면 컨트롤밸브(2)의 스풀이 실린더 제어방향으로 움직여 유압펌프에서 발생된 유량이 유압호스(7) 및 솔레노이드 밸브(4)를 통과하여 슬라이딩 실린더(3)에 도달되면 유압의 힘으로 카운터웨이트(1)를 슬라이딩 실린더(3)의 행정거리만큼 프레임의 후방으로 이송하여 장비의 안정도를 향상시켜 작업할 수 있다.When explaining the operation of the present invention with reference to the configuration as described above, if the load is small, even if working with the equipment basic specifications is not a problem in stability, but when the operator works to improve the stability when working with heavy toggle switch (6) Is turned from the neutral position to the rear position, the spool of solenoid valve (4) is moved to the cylinder operation direction by the electric harness (8), and the lift lever (5) is pushed forward, the spool of the control valve (2) is the cylinder control direction. When the flow rate generated by the hydraulic pump reaches the sliding cylinder 3 through the hydraulic hose 7 and the solenoid valve 4, the counterweight 1 is moved by the hydraulic force by the stroke distance of the sliding cylinder 3. It can be transported to the rear of the frame to improve the stability of the machine.

작업후 카운터웨이트를 본래의 위치로 이송하려면 토글스위치(6)를 전방위치로 온하여 리프트레버(5)를 앞쪽으로 밀면 카운터웨이트(1)를 전방으로 이송하여 기본사양의 장비로 사용할 수 있다.To transfer the counterweight to its original position after work, turn the toggle switch 6 to the front position and push the lift lever 5 forward to transfer the counterweight 1 to the front and use it as basic equipment.

(응용예, 변형예)(Application, Modification)

본 발명은 상술한 특정한 바람직한 실시예와 변형예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 설계변경적 실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위내에 있게 된다.The present invention is not limited to the above specific preferred embodiments and modifications, and any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims can make various design changes. Of course, such changes are within the scope of the claims.

본 발명은 지게차의 장비 기본사양은 그대로 유지하면서 적재, 하역, 작업물 이동작업시 장비의 안정도가 불안정하여 발생될 수 있는 전복사고로부터 고귀한 생명을 보호할 수 있도록 장비의 안정도를 향상하였으므로 안전사고 예방을 위해 매우 유용한 발명인 것이다.The present invention improves the stability of the equipment to protect the noble life from the rollover accident that can occur due to the unstable stability of the equipment during loading, unloading, moving the workpiece while maintaining the basic equipment specifications of the forklift, safety accident prevention It is a very useful invention for.

Claims (2)

지게차의 카운터웨이트를 이송하는 유압 시스템에서 카운터웨이트(1)에 솔레노이드 밸브(4)와 슬라이딩 실린더(3)를 설치한 것을 특징으로 하는 유압에 의한 지게차 카운터웨이트 이송 시스템.A hydraulic forklift counterweight conveying system, characterized in that a solenoid valve (4) and a sliding cylinder (3) are installed on a counterweight (1) in a hydraulic system for conveying a counterweight of a forklift truck. 지게차의 프레임에 카운터웨이트(1)를 슬라이딩 될 수 있게 조립하고 슬라이딩 실린더(3)를 프레임과 카운터웨이트에 연결하여 작동되도록 하고 실린더를 제어할 수 있는 컨트롤밸브(2), 솔레노이드 밸브(4), 리프트 레버(5), 토글스위치(6), 유압호스(7) 및 전기 하네스(8)를 설치한 것을 특징으로 하는 유압에 의한 지게차 카운터웨이트 이송 시스템.A control valve (2), a solenoid valve (4) for assembling the counterweight (1) to the frame of the forklift to be slidable and operating the sliding cylinder (3) by connecting the frame and the counterweight and controlling the cylinder A hydraulic forklift counterweight transfer system, comprising a lift lever (5), a toggle switch (6), a hydraulic hose (7), and an electric harness (8).
KR1020000079446A 2000-12-21 2000-12-21 Counterweight sliding system by hydraulics for forklift KR20020050324A (en)

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Application Number Priority Date Filing Date Title
KR1020000079446A KR20020050324A (en) 2000-12-21 2000-12-21 Counterweight sliding system by hydraulics for forklift

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Application Number Priority Date Filing Date Title
KR1020000079446A KR20020050324A (en) 2000-12-21 2000-12-21 Counterweight sliding system by hydraulics for forklift

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120084872A (en) * 2011-01-21 2012-07-31 두산산업차량 주식회사 A counter weight device of a forklift

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5225362A (en) * 1975-08-22 1977-02-25 Komatsu Forklift Kk Counterweight device for use in a fork lift
KR970001748U (en) * 1995-06-08 1997-01-21 김주동 Variable counterweight of forklift
KR970013631U (en) * 1995-09-30 1997-04-25 Counterweight for forklift truck with position change
JPH10167675A (en) * 1996-12-05 1998-06-23 Kato Works Co Ltd Counterweight moving mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5225362A (en) * 1975-08-22 1977-02-25 Komatsu Forklift Kk Counterweight device for use in a fork lift
KR970001748U (en) * 1995-06-08 1997-01-21 김주동 Variable counterweight of forklift
KR970013631U (en) * 1995-09-30 1997-04-25 Counterweight for forklift truck with position change
JPH10167675A (en) * 1996-12-05 1998-06-23 Kato Works Co Ltd Counterweight moving mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120084872A (en) * 2011-01-21 2012-07-31 두산산업차량 주식회사 A counter weight device of a forklift

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