WO2019144688A1 - Agencement de levage vertical pour engin de chantier - Google Patents

Agencement de levage vertical pour engin de chantier Download PDF

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Publication number
WO2019144688A1
WO2019144688A1 PCT/CN2018/117225 CN2018117225W WO2019144688A1 WO 2019144688 A1 WO2019144688 A1 WO 2019144688A1 CN 2018117225 W CN2018117225 W CN 2018117225W WO 2019144688 A1 WO2019144688 A1 WO 2019144688A1
Authority
WO
WIPO (PCT)
Prior art keywords
main arm
tilting
connector
arrangement
equipment
Prior art date
Application number
PCT/CN2018/117225
Other languages
English (en)
Inventor
Edward Wagner
Yunfeng Zhao
Original Assignee
Guangxi Liugong Machinery Co., Ltd.
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
Priority claimed from CN201810076343.4A external-priority patent/CN108301448B/zh
Application filed by Guangxi Liugong Machinery Co., Ltd. filed Critical Guangxi Liugong Machinery Co., Ltd.
Priority to US16/614,051 priority Critical patent/US20200370269A1/en
Priority to EP18901938.3A priority patent/EP3610079A4/fr
Priority to PCT/CN2018/117225 priority patent/WO2019144688A1/fr
Priority to CN201880044220.0A priority patent/CN110809657A/zh
Publication of WO2019144688A1 publication Critical patent/WO2019144688A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/422—Drive systems for bucket-arms, front-end loaders, dumpers or the like
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/283—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a single arm pivoted directly on the chassis
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/34—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
    • E02F3/3405—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/34—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
    • E02F3/3405—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism
    • E02F3/3408—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism of the parallelogram-type
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/34—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
    • E02F3/3405—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism
    • E02F3/3411—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism of the Z-type
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/34—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
    • E02F3/3417—Buckets emptying by tilting
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/34—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
    • E02F3/342—Buckets emptying overhead
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0841—Articulated frame, i.e. having at least one pivot point between two travelling gear units
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2271—Actuators and supports therefor and protection therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • E02F9/264—Sensors and their calibration for indicating the position of the work tool

Definitions

  • Vertical lift loaders are construction machines that comprise a front frame portion and a rear frame portion, which are articulatingly interconnected for providing an articulating steering.
  • Such loaders comprise a lifting arrangement that is supported by the front frame portion of said articulating frame arrangement and is articulated together with said front frame portion with respect to said rear frame portion upon steering.
  • the present invention exploits this idea by providing, in a first aspect, a lifting arrangement for a construction machine having a frame arrangement with a front frame portion and a rear frame portion, said lifting arrangement being mountable to said front frame portion.
  • the construction machine may be a loader, for example a wheel loader.
  • the lifting arrangement comprises a main arm, which is provided with a pivot connector at a proximate end thereof and an equipment connector at a distal end thereof, and a main arm support means for pivotably supporting said pivot connector of said main, wherein said main arm support means is movable in a direction which includes at least a component in the front-rear direction with respect to said frame arrangement.
  • the tilting link connects the tilting connector of the equipment to the connecting link which is connected to the upper connector of the lever.
  • the kinematic chain is completely provided above the main arm in the lowered position of the lifting arrangement.
  • the kinematic chain is completely provided above the main arm in all normal operating conditions of the lifting arrangement.
  • the lifting arrangement may further comprise a guiding means engaged to said main arm at a guided portion of said main arm positioned between said pivot connector and said equipment connector, wherein, upon pivoting said main arm between said lowered position and said lifted position, said guiding means guides the main arm such that said equipment connector follows a substantially vertical path.
  • the guiding means is connectable to the front frame portion of said frame arrangement. The guiding means provides a relatively simple mechanical way of realizing a vertical lifting arrangement.
  • Figure 4 illustrates a first embodiment of the tilting arrangement of the vertical lifting arrangement of the construction machine according to the first embodiment in perspective view
  • Figure 8 illustrates the tilting arrangement of Fig. 7 in side view.
  • the articulating steering arrangement 40 provides a tilting between the front frame portion 30 and the rear frame portion 20 in order to provide a steering by changing the angle enclosed between the rotation axis of the front wheels 301 and the rotating axis of the rear wheels 201.
  • the articulating steering arrangement 40 can be driven by a not illustrated actuator, such as a hydraulic actuator.
  • the type and structure of the articulating steering arrangement 40 is not essential to the invention and can be adapted as required.
  • the front frame portion 30 extends in the forward direction with respect to the rear frame portion 20.
  • the front frame portion 30 is located in front of the operator's cab 203 and the engine compartment 202.
  • the application of the lifting arrangement according to the present invention is not limited to the construction machine 1 having such an arrangement.
  • the front frame portion 30 tilts with respect to the rear frame portion 20, the operator's cab 203 and the engine compartment 202.
  • a modified steering arrangement such as a single wheel steering, front wheel steering or rear wheel steering while the articulating steering arrangement is omitted or provided only as option.
  • the main arm support link 6a is pivotably mounted to the front frame portion 30 at its second end 13.
  • a rotating bearing of a suitable type is arranged for providing the pivotable movement of the main arm support link 6a with respect to the front frame portion 30.
  • the main arm support link 6a is arranged such that a rotation or pivoting movement of the main arm support link 6a provides a movement of the first end 12 in a direction which at least includes a component in the front-rear direction of the construction machine 1. For this reason, the main arm support link 6a is directed in an upwards direction with a specific inclination from the vertical direction in the situation in Fig. 1.
  • the main arm 3 comprises a guided portion 10 which is provided between the pivot connector 4 and the equipment connector 5.
  • the guided portion 10 is also offset by a predetermined amount from a line connecting the pivot connector 4 and the equipment connector 5.
  • this offset is not essential for the present invention and rather a preferred arrangement.
  • the main arm 3 Upon actuating the actuator 11, the main arm 3 is rotated in the clockwise direction in Figure 1. With this rotation, the main arm 3 is rotated with respect to the main arm support link 6a. At the same time, the guiding arm 7a is rotated in the counter clockwise direction. When the guiding arm 7a rotates in the counter clockwise direction, the guided portion 10 of the main arm 3 is forced along a circular path due to the constant distance between the first and second ends 8, 9 of the guiding arm 7a. The circular path provided by the rotation of the guiding arm 7a is bulged towards the main arm support means including, in the present embodiment, the main arm support link 6a.
  • the bucket 15 can be moved from the lowered position shown in Figure 1 to the lifted position shown in Figure 3 through the intermediate position shown in Figure 2.
  • the equipment connector 5 is forced along a predetermined movement path which is shown as path P in the drawings.
  • the path P is formed with an S-shape but basically follows a substantially vertical path throughout the movement of the equipment connector from the lower most position to the upper most position.
  • the substantially vertical path may be a J-shaped path.
  • the path P deviates from a circular path which is achievable with prior art lifting arrangements in which the pivot connector 4 of the main arm 3 is immovably and stationary with respect to a frame portion of the construction machine 1.
  • the movement of the pivot connector 4 of the main arm is achieved by providing the movable support means 6 and the guiding means 7 which forces the main arm 3 to a specified movement pattern leading to a basically vertical movement range of the equipment connector 5.
  • an input section 61 communicates with the control means 60.
  • the input section 61 is capable of transferring signals to the control means 60 which are e.g. triggered by the operator operating the construction machine.
  • the input section 61 can further communicate with additional control systems in order to provide an automatic trigger for transferring signals to the control means 60.
  • a movement pattern of the equipment connector 5 can be provided which deviates from a circular path having a constant radius.
  • the lifting arrangement according to the second embodiment further comprises a tilting arrangement 400, which is not illustrated in Figs. 9-11.
  • the tilting arrangement 400 is configured according to the first or second embodiment of the tilting arrangement 400 described in connection with the lifting arrangement of the first embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

L'invention concerne un agencement de levage pour un engin de chantier, éventuellement un chargeur, comprenant un agencement de cadre muni d'une partie de cadre avant (30) et d'une partie de cadre arrière (20), ledit agencement de levage pouvant être monté sur ladite partie de cadre avant (30), comprenant un bras principal (3), comportant un connecteur à pivot (4) à une extrémité proximale de celui-ci et un connecteur d'équipement (5) à une extrémité distale de celui-ci, un moyen de support de bras principal (6) pour pivot supportant ledit connecteur de pivot (4) dudit bras principal (3), ledit moyen de support de bras principal (6) étant mobile dans une direction qui comprend au moins un composant dans la direction avant-arrière par rapport audit agencement de cadre, l'agencement de levage étant conçu de telle sorte que le connecteur d'équipement (5), lors du pivotement dudit bras principal (3) entre une position abaissée et une position levée, suit un trajet sensiblement vertical, l'agencement de levage comprenant en outre un agencement d'inclinaison (400) pour incliner un équipement (15) monté sur le connecteur d'équipement (5) du bras principal (3), l'agencement d'inclinaison (400) comprenant une chaîne cinématique (406) pour la fixation à un connecteur d'inclinaison (151) de l'équipement (15) monté sur le connecteur d'équipement (5) du bras principal (3).
PCT/CN2018/117225 2018-01-26 2018-11-23 Agencement de levage vertical pour engin de chantier WO2019144688A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US16/614,051 US20200370269A1 (en) 2018-01-26 2018-11-23 Vertical lifting arrangement for construction machine
EP18901938.3A EP3610079A4 (fr) 2018-01-26 2018-11-23 Agencement de levage vertical pour engin de chantier
PCT/CN2018/117225 WO2019144688A1 (fr) 2018-01-26 2018-11-23 Agencement de levage vertical pour engin de chantier
CN201880044220.0A CN110809657A (zh) 2018-01-26 2018-11-23 用于施工机械的垂直升降装置

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201810076343.4 2018-01-26
CN201810076343.4A CN108301448B (zh) 2018-01-26 2018-01-26 装载机工作装置
PCT/CN2018/117225 WO2019144688A1 (fr) 2018-01-26 2018-11-23 Agencement de levage vertical pour engin de chantier

Publications (1)

Publication Number Publication Date
WO2019144688A1 true WO2019144688A1 (fr) 2019-08-01

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ID=73572400

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/117225 WO2019144688A1 (fr) 2018-01-26 2018-11-23 Agencement de levage vertical pour engin de chantier

Country Status (4)

Country Link
US (1) US20200370269A1 (fr)
EP (1) EP3610079A4 (fr)
CN (1) CN110809657A (fr)
WO (1) WO2019144688A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019127725A (ja) * 2018-01-23 2019-08-01 株式会社クボタ 作業機、作業機の制御方法、プログラム及びその記録媒体
EP4144922A1 (fr) * 2021-09-07 2023-03-08 Volvo Construction Equipment AB Agencement de liaison pour une machine de travail

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3876101A (en) * 1974-04-19 1975-04-08 Caterpillar Tractor Co Loader linkage with jointed lift arms
US5511932A (en) * 1994-11-22 1996-04-30 New Holland North America, Inc. Skid steer loader boom control system
CN103161185A (zh) * 2011-12-12 2013-06-19 厦门厦工机械股份有限公司 一种滑移装载机垂直提升装置
CN103790193A (zh) * 2012-12-17 2014-05-14 青岛鲁达工程机械制造有限公司 装载机垂直升降卸料工作装置
EP3051031A1 (fr) * 2015-02-02 2016-08-03 Guangxi LiuGong Machinery Co., Ltd. Dispositif de levage pour une machine de construction
EP3051032A2 (fr) * 2015-02-02 2016-08-03 Guangxi LiuGong Machinery Co., Ltd. Dispositif de levage pour une machine de construction

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045845A (en) * 1958-08-20 1962-07-24 Eimco Corp Implement position control and indicator means
US3122248A (en) * 1961-08-10 1964-02-25 Caterpillar Tractor Co Loader bucket with ejector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3876101A (en) * 1974-04-19 1975-04-08 Caterpillar Tractor Co Loader linkage with jointed lift arms
US5511932A (en) * 1994-11-22 1996-04-30 New Holland North America, Inc. Skid steer loader boom control system
CN103161185A (zh) * 2011-12-12 2013-06-19 厦门厦工机械股份有限公司 一种滑移装载机垂直提升装置
CN103790193A (zh) * 2012-12-17 2014-05-14 青岛鲁达工程机械制造有限公司 装载机垂直升降卸料工作装置
EP3051031A1 (fr) * 2015-02-02 2016-08-03 Guangxi LiuGong Machinery Co., Ltd. Dispositif de levage pour une machine de construction
EP3051032A2 (fr) * 2015-02-02 2016-08-03 Guangxi LiuGong Machinery Co., Ltd. Dispositif de levage pour une machine de construction

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3610079A4 *

Also Published As

Publication number Publication date
CN110809657A (zh) 2020-02-18
EP3610079A4 (fr) 2021-04-21
US20200370269A1 (en) 2020-11-26
EP3610079A1 (fr) 2020-02-19

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