EP1903147A2 - Chargeur frontal doté d'un guidage parallèle mécanique - Google Patents

Chargeur frontal doté d'un guidage parallèle mécanique Download PDF

Info

Publication number: EP1903147A2
Authority: EP; European Patent Office
Prior art keywords: pivot axis; front loader; rocker; rod; control rod
Prior art date: 2006-09-21
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

EP07018540A

Other languages

German (de)

English (en)

Other versions

EP1903147A3 (fr

EP1903147B1 (fr

Inventor

Stefan Strüning

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.)

Wilhelm Stoll Maschinenfabrik GmbH

Original Assignee

Wilhelm Stoll Maschinenfabrik 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.)

2006-09-21

Filing date

2007-09-21

Publication date

2008-03-26

2007-09-21 Application filed by Wilhelm Stoll Maschinenfabrik GmbH filed Critical Wilhelm Stoll Maschinenfabrik GmbH

2007-09-21 Priority to PL07018540T priority Critical patent/PL1903147T3/pl

2008-03-26 Publication of EP1903147A2 publication Critical patent/EP1903147A2/fr

2009-03-18 Publication of EP1903147A3 publication Critical patent/EP1903147A3/fr

2010-01-13 Application granted granted Critical

2010-01-13 Publication of EP1903147B1 publication Critical patent/EP1903147B1/fr

Status Active legal-status Critical Current

2027-09-21 Anticipated expiration legal-status Critical

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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
- E02F3/627—Devices to connect beams or arms to tractors or similar self-propelled machines, e.g. drives therefor
- 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

Definitions

the invention relates to a attachable to a tractor front loader with a mechanical parallel guide for an attachable to the front loader tool and the features of the preamble of claim 1.
a mechanical parallel guide in a tractor is used to maintain the current angular position of a mounted on the front loader tool relative to the ground when raising and lowering with the front loader, the swing arms of the front loader are pivoted about a horizontal swing arm pivot relative to the tractor, so that z. B. any good that is taken up with the working tool, not accidentally tilted or spilled.
a conventional mechanical parallel guidance of a front loader comprises control rods which extend from the columns mounted on the tractor in a stationary and rotationally fixed manner above the rocker spars to deflection triangles, which are pivotably mounted on the rocker spars in the region of downward pointing kinks of the rocker spars and on which a central or a tool cylinder per rocker spar is supported, which acts on a mounting bracket for the tool.
this known mechanical parallel guide is both the space requirement of the control rods above the swingarm spars, the z. B. can collide with a swiveling forward front window of a driver's cab of the tractor to which the front loader is mounted, as well as connected to the control rods obstruction of the driver of the tractor.
the control rods do not run above but below the respective rocker spar and engage below the triangular pivot axes about which the Umlenkdreiecke are pivotally mounted on the rocker beams on the Umlenkdreiecken. Accordingly, the Umlenkdreiecke are not strictly triangular but designed as a two-armed lever. These two-armed levers are mounted in recesses of the swingarm spars so that they extend from below the swingarm spars where the control rods are articulated through the swingarm spars to above the swingarm spars where their further pivot point is.
the guide rods do not extend from the columns mounted on the tractor to the deflection triangles below the rocker beams, at least one tool cylinder extending from the deflection triangles to the mounting bracket for the tool, but the guide rods and the tool cylinders are opposite the arrangement reversed according to the preamble of claim 1.
the driver's view of the tractor above the swingarm spars is kept clear up to their downward pointing creases.
a front loader with the features of the preamble of claim 1 is known from DE 101 62 016 A1 known.
the control rods extend in a straight line between the two rod pivot axes, and the cross section of the rocker arms is hinged down to receive the control rods. Through this downwardly extended cross-section of the swingarm spars the driver's view of the tractor is significantly reduced.
the invention has for its object to provide a front loader with the features of the preamble of claim 1, in which with respect to the visibility of the driver of the tractor to which the front loader is grown no worse conditions prevail than in a front loader without mechanical parallel guide.
the new front loader which is described in the claims only in relation to a single rocker spar, but regularly has two rocker spars and correspondingly two control rods, run the control rods in all operating positions of the front loader at least half their length between the rod pivot axes within the cross section of swing bars.
the cross section of the swingarms compared to conventional designs significantly expand and without compromising on the functionality of the control rods, on the other hand, when a material history of the control rods to the course of the rocker arms between the rocker pivot axis and the Dreieckschwenkachsen out offset so that the masses of the control rods at least 60% above one of the lie two plane pivot axes defined plane.
the new front loader Over the entire length, over which the control rods run within the cross section of the swinging beams, the new front loader is not different from a front loader without mechanical parallel guidance, both in terms of visibility and the space for attaching the lifting cylinder.
control rods extend in all operating positions of the front loader at least two thirds of its length between the rod pivot axes within the cross section of the swing arm.
the remainder of the control rods which is not within the cross section of the rocker beams, are located near the columns at which the rocker arms are pivotally mounted about the rocker pivot axis.
the lifting cylinder of a front loader are typically articulated at a significant distance to the swingarm pivot axis of the columns to create favorable lifting conditions.
the swingarms can basically have a U-shaped profile with downwardly directed opening.
the control rods extend over their substantial length between the rod pivot axes within an edge-closed cross-section of the rocker beams, i. are completely enclosed by the swinging spars.
control rods can also be mounted on the Umlenkdreiecken, said Umlenkdreiecke carry in a front loader according to the invention, although this historically-related name, but are actually two-armed lever.
control rods are stored in the new front loader regularly above cylinder pivot axes on the columns to those on the Swinging spars attacking lifting cylinder are pivotally mounted on the columns.
the first rod pivot axes are much closer to the pivot axis compared to the columns than to the cylinder pivot axes.
the new front loader It is preferred in the new front loader. if the masses of the control rods are at least 75% above the plane defined by the two rod pivot axes, at least where the control rods extend within the rocker beams. Accordingly, it is favorable in the new front loader when the rocker pivot axis is arranged in the upper region of the cross section of the rocker spars, so that the cross section of the rocker spars, through which the control rods extend, is reversed as far as possible down to the control rods.
control rods in the new front loader can be bent downwards toward the columns to the first rod pivot axis, while they are preferably bent gently downwards towards the second pivot axis at the deflection triangles.
Another contribution to a particularly slim construction of the swingarms is provided by the fact that the second rod pivot axes at the Umlenkdreiecken are further away from the triangular pivot axes as a horizontal horrenkachse to pivot a tool cylinder for arbitrary pivoting of the tool about a horizontal tool pivot axis relative to the rocker beams is stored the deflection triangle.
the front loader 1 In the side view of the front loader 1 shown in FIG. 1 , its components are all only easy to see, although most of them are present twice in the complete front loader 1. Specifically, all components of the front loader 1 described below, except for a mounting bracket 7 for attaching a tool, not shown here to the front loader 1 regularly arranged twice in symmetrical arrangement to a lying parallel behind the plane vertical vertical plane of the front loader 1. Accordingly, in the following description of the front loader 1 in the description of all actually doubly occurring components, the plural is used.
the front loader 1 is mounted on columns 4 to a tractor, not shown here, the columns 4 in the mounted state of the front loader 1 relative to the tractor are stationary and rotationally fixed.
swingarms 2 are mounted pivotably about a horizontally extending swingarm pivot axis 8.
lifting cylinders 9 are mounted pivotably about cylinder pivot axes 10 in the lower region of the columns 4, which engage with their other end on the rocker beams 2.
the rocker beams 2 have a downwardly directed bend 11, in the area they by gusset plates. 6 are reinforced.
the rocker spars 2 extend down to the mounting bracket 7, which is mounted about a tool pivot axis 12 pivotally mounted on the rocker beams 2.
tool cylinder 13 are provided to pivot the mounting bracket 7 about the tool pivot axis 12.
the tool cylinder 13 engage via four-bar arrangements 14, which in addition to the rocker beams 2 and the mounting bracket 7 each have two additional links 15 and 16, to the mounting bracket 7 at.
the tool cylinders 13 are mounted pivotably about tool cylinder pivot axes 17 on deflection triangles 5, on which they are supported during pivoting of the mounting bracket 7.
the Umlenkdreiecke 5 are actually two-armed levers which are pivotally mounted about Dreieckschwenkachsen 18 within the rocker beams 2 and act on the shorter lever arms within the cross section of the rocker beams 2 control rods 3, which are pivotable relative to the Umlenkdreiecken 5 about rod pivot axes 19.
the control rods 2 are mounted pivotably about further rod pivot axes 20 on the columns 4, wherein the rod pivot axes 20 are closer to the swing arm pivot axis 8 than to the cylinder pivot axes 10.
the control rods 3 engage not only within the closed cross-section of the rocker beams 2 to the Umlenkdreiecken 5, but they extend from there even within the closed cross-section of the rocker beams 2 to openings 21 of the rocker beams 2 near the columns 4.
the control rods 2 so about its essential part within the cross section of the swingarms 2 and this is true for all working positions of the front loader 1, ie for all pivot positions of the swingarms 2 about the swingarm pivot axis 8.
the rocker pivot axis 8 as well as the triangular pivot axes 18 extends in the upper region of the cross section of the rocker beams 2, and the control rods 3 are bent at their ends to the rod pivot axes 19 at the Umlenkdreiecken 5 and bent to the rod pivot axes 20 on the columns 4 back ,
the control rods 2 serve the angular position of the mounting bracket 7 about the tool pivot axis 12, which is selected with the tool cylinders 13, relative to the ground or against the ground rotatable columns 4 when lifting the rocker beams 2 about the swing arm pivot. 8 to conserve. This preservation of the pivot position is referred to as a mechanical parallel guidance for the mounted on the front loader 1 tool.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Mining & Mineral Resources (AREA)
Civil Engineering (AREA)
General Engineering & Computer Science (AREA)
Structural Engineering (AREA)
Shovels (AREA)
Load-Engaging Elements For Cranes (AREA)
Replacement Of Web Rolls (AREA)
Jib Cranes (AREA)
Operation Control Of Excavators (AREA)
Turning (AREA)

EP07018540A 2006-09-21 2007-09-21 Chargeur frontal doté d'un guidage parallèle mécanique Active EP1903147B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
PL07018540T PL1903147T3 (pl)	2006-09-21	2007-09-21	Ładowarka czołowa z mechanicznym prowadzeniem równoległym

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102006044533A DE102006044533A1 (de)	2006-09-21	2006-09-21	Frontlader mit mechanischer Parallelführung

Publications (3)

Publication Number	Publication Date
EP1903147A2 true EP1903147A2 (fr)	2008-03-26
EP1903147A3 EP1903147A3 (fr)	2009-03-18
EP1903147B1 EP1903147B1 (fr)	2010-01-13

Family

ID=38728832

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP07018540A Active EP1903147B1 (fr)	2006-09-21	2007-09-21	Chargeur frontal doté d'un guidage parallèle mécanique

Country Status (5)

Country	Link
EP (1)	EP1903147B1 (fr)
AT (1)	ATE455212T1 (fr)
DE (2)	DE102006044533A1 (fr)
ES (1)	ES2339169T3 (fr)
PL (1)	PL1903147T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2857590A2 (fr)	2013-10-04	2015-04-08	Kubota Corporation	Chargeur frontal
US20150098785A1 (en) *	2013-10-04	2015-04-09	Kubota Corporation	Front loader
EP2924178A2 (fr)	2014-03-27	2015-09-30	Kubota Corporation	Chargeur avant
USD760811S1 (en)	2014-09-19	2016-07-05	Kubota Corporation	Bucket work machine for a loader
WO2016176699A1 (fr) *	2015-05-04	2016-11-10	HAUER, Ronald	Flèche porte-outil pour un véhicule utilitaire
SE2050817A1 (en) *	2020-07-01	2022-01-02	Aaloe Ab	A front loader for a working vehicle and a working vehicle

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
PL3431668T3 (pl)	2017-07-17	2020-04-30	Wilhelm Stoll Maschinenfabrik Gmbh	Ładowarka czołowa i częściowa osłona ładowarki czołowej
EP4491807A1 (fr)	2023-07-13	2025-01-15	Wilhelm Stoll Maschinenfabrik GmbH	Procédé de couplage automatique d'un chargeur frontal avec un véhicule de travail, dispositif de couplage de chargeur frontal automatique, véhicule de travail et système de véhicule de travail
DE202023002870U1 (de)	2023-07-13	2024-11-28	Wilhelm Stoll Maschinenfabrik Gmbh	Frontlader, Arbeitsfahrzeug und Arbeitsfahrzeugsystem
EP4491806B1 (fr)	2023-07-13	2025-11-19	Wilhelm Stoll Maschinenfabrik GmbH	Chargeur frontal, véhicule de travail et système de véhicule de travail
DE202023003153U1 (de)	2023-11-10	2026-05-07	Bucher Hydraulics Gmbh	Anbaugerät, Fahrzeugkombination, Computerprogrammprodukt und Verwendung einer Steuereinheit
EP4553233A1 (fr)	2023-11-10	2025-05-14	Wilhelm Stoll Maschinenfabrik GmbH	Accessoire, combinaison de véhicules et produit programme informatique

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2645369A (en) *	1950-03-15	1953-07-14	Frederick W Allan	Power loader
US3203564A (en) *	1962-07-06	1965-08-31	Koehring Co	Front end and overshot loader
US3722724A (en) *	1971-04-19	1973-03-27	Case Co J I	Load carrying device with improved position control
DE8207930U1 (de) *	1982-03-20	1982-07-29	Xaver Fendt & Co, 8952 Marktoberdorf	Frontladerschwinge
CA1298813C (fr) *	1987-08-12	1992-04-14	Shoichiro Kawamura	Commande de positionnement des outils d'une chargeuse
GB2340816B (en) *	1998-08-25	2002-10-09	Agco Gmbh & Co	Adjustable arm length for front-end loader
DE10162016A1 (de) *	2001-12-18	2003-07-03	Deere & Co	Lader
DE10162026A1 (de) *	2001-12-18	2003-07-03	Cognis Deutschland Gmbh	Hochkonzentriert fließfähige Perlglanzkonzentrate
JP3828856B2 (ja) *	2002-10-21	2006-10-04	ヤンマー株式会社	スキッドステアローダ
SE528914C2 (sv) *	2004-09-29	2007-03-13	Aaloe Ab	Lastare innefattande två parallellt anordnade armkonstruktioner som i sin tur innefattar långsträckta armpartier och parallellstag

2006
- 2006-09-21 DE DE102006044533A patent/DE102006044533A1/de not_active Withdrawn
2007
- 2007-09-21 AT AT07018540T patent/ATE455212T1/de active
- 2007-09-21 PL PL07018540T patent/PL1903147T3/pl unknown
- 2007-09-21 EP EP07018540A patent/EP1903147B1/fr active Active
- 2007-09-21 DE DE502007002601T patent/DE502007002601D1/de active Active
- 2007-09-21 ES ES07018540T patent/ES2339169T3/es active Active

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US9528242B2 (en)	2013-10-04	2016-12-27	Kubota Corporation	Front loader with swing link member
US20150098785A1 (en) *	2013-10-04	2015-04-09	Kubota Corporation	Front loader
EP2857590A3 (fr) *	2013-10-04	2015-07-01	Kubota Corporation	Chargeur frontal
EP2857590A2 (fr)	2013-10-04	2015-04-08	Kubota Corporation	Chargeur frontal
EP2924178A2 (fr)	2014-03-27	2015-09-30	Kubota Corporation	Chargeur avant
EP2924178A3 (fr) *	2014-03-27	2015-10-21	Kubota Corporation	Chargeur avant
US9238899B2 (en)	2014-03-27	2016-01-19	Kubota Corporation	Front loader
US9238900B2 (en)	2014-03-27	2016-01-19	Kubota Corporation	Front loader
USD760811S1 (en)	2014-09-19	2016-07-05	Kubota Corporation	Bucket work machine for a loader
WO2016176699A1 (fr) *	2015-05-04	2016-11-10	HAUER, Ronald	Flèche porte-outil pour un véhicule utilitaire
CN107567518A (zh) *	2015-05-04	2018-01-09	罗纳德·豪尔	用于商用车的悬臂
US10208450B2 (en)	2015-05-04	2019-02-19	Ronald HAUER	Cantilever for a utility vehicle
CN107567518B (zh) *	2015-05-04	2020-12-01	罗纳德·豪尔	用于商用车的悬臂
SE2050817A1 (en) *	2020-07-01	2022-01-02	Aaloe Ab	A front loader for a working vehicle and a working vehicle
SE544752C2 (en) *	2020-07-01	2022-11-01	Aaloe Ab	A front loader for a working vehicle and a working vehicle
US12104346B2 (en)	2020-07-01	2024-10-01	Ålö AB	Front loader for a working vehicle and a working vehicle

Also Published As

Publication number	Publication date
PL1903147T3 (pl)	2010-06-30
DE102006044533A1 (de)	2008-04-03
DE502007002601D1 (de)	2010-03-04
ATE455212T1 (de)	2010-01-15
ES2339169T3 (es)	2010-05-17
EP1903147A3 (fr)	2009-03-18
EP1903147B1 (fr)	2010-01-13

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