EP3409839A3 - Quick changer - Google Patents

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Publication number
EP3409839A3
EP3409839A3 EP18174659.5A EP18174659A EP3409839A3 EP 3409839 A3 EP3409839 A3 EP 3409839A3 EP 18174659 A EP18174659 A EP 18174659A EP 3409839 A3 EP3409839 A3 EP 3409839A3
Authority
EP
European Patent Office
Prior art keywords
drive shaft
drive
locking
locking bolt
introduction element
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.)
Granted
Application number
EP18174659.5A
Other languages
German (de)
French (fr)
Other versions
EP3409839A2 (en
EP3409839B1 (en
Inventor
Huber JOHANNES
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.)
Lehnhoff Hartstahl GmbH
Original Assignee
Lehnhoff Hartstahl GmbH
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 Lehnhoff Hartstahl GmbH filed Critical Lehnhoff Hartstahl GmbH
Publication of EP3409839A2 publication Critical patent/EP3409839A2/en
Publication of EP3409839A3 publication Critical patent/EP3409839A3/en
Application granted granted Critical
Publication of EP3409839B1 publication Critical patent/EP3409839B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E02F3/3668—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat where engagement is effected by a mechanical lever or handle
    • 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
    • E02F3/3627—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
    • E02F3/3672—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

Abstract

Die Erfindung betrifft einen Schnellwechsler (10) mit zumindest einem Riegelbolzen (26) und einem handbetriebenen Antrieb (30), der den Riegelbolzen (26) zwischen einer Verriegelungsposition und einer Entriegelungsposition verfahrt, wobei der Antrieb (30) ein Krafteinleitungselement (20) aufweist, über das die manuelle Antriebskraft zum Verriegeln und Entriegeln in den Antrieb (30) eingebracht wird, der Antrieb (30) ein Getriebe (38, 44) aufweist, wobei das Krafteinleitungselement (20) über das Getriebe (38, 44) mit dem Riegelbolzen (26) zusammenwirkt, das Getriebe (38, 44) eine über das Krafteinleitungselement (20) eingebrachte Drehbewegung in eine translatorische Verriegelungs- oder Entriegelungsbewegung des Riegelbolzens (26) umsetzt, und wobei das Getriebe eine Antriebswelle (38) und einen mit der Antriebswelle (38) sowie den Riegelbolzen (26) zusammenwirkenden, verdrehsicher gelagerten Bewegungsumsetzer (44) aufweist, der die Drehbewegung der Antriebswelle (38) in eine translatorische Bewegung für den Riegelbolzen (26) umsetzt, wobei der Bewegungsumsetzer (44) und die Antriebswelle (38) so ausgebildet sind und so zusammenwirken, dass eine über das Krafteinleitungselement (20) eingebrachte Drehbewegung über einen Drehbewegungswinkel von weniger oder gleich 360°, vorzugsweise weniger als 220°, vorzugsweise weniger oder gleich 200°, insbesondere weniger als 180°, die gesamte translatorische Bewegung des Riegelbolzens (26) umfasst, um den Riegelbolzen (26) von der Entriegelungsposition in die Verriegelungsposition und vice versa zu verfahren. Die Erfindung zeichnet sich dadurch aus, dass die Antriebswelle (38) zumindest eine um die Antriebswelle (38) umlaufende Nut (38a, 38b, 38c) in der Außenumfangsfläche der Antriebswelle (38) aufweist, in die der Bewegungsumsetzer (44) eingreift, die Nut (38a, 38b, 38c) eine Steigung bezogen auf die Längsachse der Antriebswelle (38) aufweist, durch die der Drehwinkel festgelegt ist.

Figure imgaf001
The invention relates to a quick coupler (10) having at least one locking bolt (26) and a hand-operated drive (30), which moves the locking bolt (26) between a locking position and an unlocking position, wherein the drive (30) has a force introduction element (20), by means of which the manual drive force for locking and unlocking is introduced into the drive (30), the drive (30) has a gear (38, 44), wherein the force introduction element (20) via the gear (38, 44) with the latch bolt ( 26) cooperates, the transmission (38, 44) via the force introduction element (20) introduced rotational movement in a translational locking or unlocking the locking bolt (26) converts, and wherein the transmission has a drive shaft (38) and one with the drive shaft (38 ) and the locking bolt (26) cooperating, non-rotatably mounted motion converter (44) which translates the rotational movement of the drive shaft (38) into a realizing the movement of the latch bolt (26), wherein the motion converter (44) and the drive shaft (38) are configured and cooperate in such a way that a rotational movement introduced via the force introduction element (20) over a rotation angle of less than or equal to 360 °, preferably less than 220 °, preferably less than or equal to 200 °, in particular less than 180 °, the entire translational movement of the locking bolt (26) to move the locking bolt (26) from the unlocking position to the locking position and vice versa. The invention is characterized in that the drive shaft (38) at least one around the drive shaft (38) circumferential groove (38 a, 38 b, 38 c) in the outer peripheral surface of the drive shaft (38), in which the motion converter (44) engages, the Groove (38a, 38b, 38c) has a pitch relative to the longitudinal axis of the drive shaft (38) through which the angle of rotation is fixed.
Figure imgaf001
EP18174659.5A 2017-05-29 2018-05-28 Quick coupler for connecting an arm of an excavator to a work implement Active EP3409839B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017111649.4A DE102017111649A1 (en) 2017-05-29 2017-05-29 Quick coupler

Publications (3)

Publication Number Publication Date
EP3409839A2 EP3409839A2 (en) 2018-12-05
EP3409839A3 true EP3409839A3 (en) 2019-03-06
EP3409839B1 EP3409839B1 (en) 2022-07-13

Family

ID=62455407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18174659.5A Active EP3409839B1 (en) 2017-05-29 2018-05-28 Quick coupler for connecting an arm of an excavator to a work implement

Country Status (2)

Country Link
EP (1) EP3409839B1 (en)
DE (1) DE102017111649A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0542342U (en) * 1991-11-15 1993-06-08 油谷重工株式会社 Bucket removal device
JPH06248662A (en) * 1993-02-26 1994-09-06 Sakato Kosakusho:Kk Connecting device for construction machine
CA2308917A1 (en) * 2000-05-19 2001-11-19 Alois Wimmer Quick-clamping mechanical coupling for a tool implement and method of coupling an implement to an arm
US20040194636A1 (en) * 2003-04-02 2004-10-07 Huang Joseph C Mixing element with keyway attachment and mixer including mixing element
EP2910688A1 (en) * 2014-02-24 2015-08-26 Cangini Benne S.R.L. Lock and release system
US20160083935A1 (en) * 2013-04-12 2016-03-24 Bradken Resources Pty Limited Excavation tooth assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20003206U1 (en) 2000-02-23 2000-05-11 Paal Baugeraete Gmbh Device for holding interchangeable work tools
DE102015210860A1 (en) 2015-06-12 2016-12-15 Lehnhoff Hartstahl Gmbh & Co. Kg Quick coupler

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0542342U (en) * 1991-11-15 1993-06-08 油谷重工株式会社 Bucket removal device
JPH06248662A (en) * 1993-02-26 1994-09-06 Sakato Kosakusho:Kk Connecting device for construction machine
CA2308917A1 (en) * 2000-05-19 2001-11-19 Alois Wimmer Quick-clamping mechanical coupling for a tool implement and method of coupling an implement to an arm
US20040194636A1 (en) * 2003-04-02 2004-10-07 Huang Joseph C Mixing element with keyway attachment and mixer including mixing element
US20160083935A1 (en) * 2013-04-12 2016-03-24 Bradken Resources Pty Limited Excavation tooth assembly
EP2910688A1 (en) * 2014-02-24 2015-08-26 Cangini Benne S.R.L. Lock and release system

Also Published As

Publication number Publication date
EP3409839A2 (en) 2018-12-05
EP3409839B1 (en) 2022-07-13
DE102017111649A1 (en) 2018-11-29

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