EP4121604A4 - Quick coupler with front pin safety lock system - Google Patents

Quick coupler with front pin safety lock system Download PDF

Info

Publication number
EP4121604A4
EP4121604A4 EP20925201.4A EP20925201A EP4121604A4 EP 4121604 A4 EP4121604 A4 EP 4121604A4 EP 20925201 A EP20925201 A EP 20925201A EP 4121604 A4 EP4121604 A4 EP 4121604A4
Authority
EP
European Patent Office
Prior art keywords
lock system
safety lock
quick coupler
front pin
pin safety
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP20925201.4A
Other languages
German (de)
French (fr)
Other versions
EP4121604A1 (en
Inventor
Suksan OK
Jungsu Ha
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volvo Construction Equipment AB
Original Assignee
Volvo Construction Equipment AB
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 Volvo Construction Equipment AB filed Critical Volvo Construction Equipment AB
Publication of EP4121604A1 publication Critical patent/EP4121604A1/en
Publication of EP4121604A4 publication Critical patent/EP4121604A4/en
Pending legal-status Critical Current

Links

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
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3622—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a locking element acting on a pin
    • 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
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/365—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with redundant latching means, e.g. for safety purposes
    • 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
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3627—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a longitudinal locking element
    • 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
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/364—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat using wedges
    • 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
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated
    • 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
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3672—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat where disengagement is effected by a mechanical lever or handle
EP20925201.4A 2020-03-17 2020-03-17 Quick coupler with front pin safety lock system Pending EP4121604A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2020/003629 WO2021187632A1 (en) 2020-03-17 2020-03-17 Quick coupler with front pin safety lock system

Publications (2)

Publication Number Publication Date
EP4121604A1 EP4121604A1 (en) 2023-01-25
EP4121604A4 true EP4121604A4 (en) 2023-11-15

Family

ID=77771078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20925201.4A Pending EP4121604A4 (en) 2020-03-17 2020-03-17 Quick coupler with front pin safety lock system

Country Status (4)

Country Link
US (1) US20230193582A1 (en)
EP (1) EP4121604A4 (en)
CN (1) CN115190927A (en)
WO (1) WO2021187632A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240018739A1 (en) * 2022-07-18 2024-01-18 Caterpillar Inc. Anti-Release Mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2013205373A1 (en) * 2013-03-07 2014-09-25 Feel Industrial Engineering Co., Ltd. Automatic safety device for quick coupler
KR20150093360A (en) * 2014-02-07 2015-08-18 볼보 컨스트럭션 이큅먼트 에이비 quick coupler for construction machine
KR20150128474A (en) * 2014-05-09 2015-11-18 박찬환 Auto-safety device for quick coupler
US9903091B2 (en) * 2014-06-26 2018-02-27 Komatsu Ltd. Quick coupler

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1210482A1 (en) * 1999-07-12 2002-06-05 JRB Company, Inc. Excavator arm assembly with integral quick coupler
US7648305B2 (en) * 2007-02-08 2010-01-19 Cws Industries (Mfg.) Corp. Pin grabber coupler
GB2505703A (en) * 2012-09-10 2014-03-12 Geith Internat Ltd A locking mechanism for use in a quick hitch coupling
KR20150146129A (en) * 2014-06-23 2015-12-31 송칠성 Using a spur gear and screw quick coupler with safety device
DE202016004202U1 (en) * 2016-07-05 2017-10-06 Kinshofer Gmbh Quick coupler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2013205373A1 (en) * 2013-03-07 2014-09-25 Feel Industrial Engineering Co., Ltd. Automatic safety device for quick coupler
KR20150093360A (en) * 2014-02-07 2015-08-18 볼보 컨스트럭션 이큅먼트 에이비 quick coupler for construction machine
KR20150128474A (en) * 2014-05-09 2015-11-18 박찬환 Auto-safety device for quick coupler
US9903091B2 (en) * 2014-06-26 2018-02-27 Komatsu Ltd. Quick coupler

Also Published As

Publication number Publication date
WO2021187632A1 (en) 2021-09-23
US20230193582A1 (en) 2023-06-22
CN115190927A (en) 2022-10-14
EP4121604A1 (en) 2023-01-25

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Ipc: E02F 3/36 20060101AFI20231012BHEP