WO2002085095A2 - Kupplungshaken für den unterlenker eines traktors - Google Patents
Kupplungshaken für den unterlenker eines traktors Download PDFInfo
- Publication number
- WO2002085095A2 WO2002085095A2 PCT/EP2002/004078 EP0204078W WO02085095A2 WO 2002085095 A2 WO2002085095 A2 WO 2002085095A2 EP 0204078 W EP0204078 W EP 0204078W WO 02085095 A2 WO02085095 A2 WO 02085095A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- locking
- bolt
- locking bolt
- elongated hole
- recess
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/01—Traction couplings or hitches characterised by their type
- B60D1/04—Hook or hook-and-hasp couplings
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B59/00—Devices specially adapted for connection between animals or tractors and agricultural machines or implements
- A01B59/002—Details, component parts
- A01B59/006—Latched hooks
Definitions
- the invention relates to a coupling hook according to the preamble of claim 1.
- Coupling hooks of this type are basically known as connecting elements of the lower link of a three-point hitch of a tractor. They are provided with a ball socket-like receptacle for a coupling body, which is secured in the coupling position by means of a locking bolt.
- the locking bolt is usually held in the locking position by means of a tension spring and can be transferred to the unlocking position by means of a cable, in which the coupling body can be removed.
- Such a coupling hook is known for example from DE 42 35780 C1.
- a receiving space is provided, within which the locking bolt is connected on the one hand to a tension spring and on the other hand to a tension member, the locking bolt being held in the locking position under spring force and being able to be transferred into the unlocking position via the tension member.
- the receiving chamber is connected via a recess in the hook body to the receptacle of the coupling body mentioned, via which the locking bolt interacts with the coupling body.
- two stops which interact with the contour of the locking bolt ⁇ , secure it positively in the locking position with the help of the tension spring and determine its movement during the transition to the unlocking position, starting from its locking position and vice versa.
- a comparable coupling hook is known from DE 39 12 414 C1, the locking bolt of which is mounted on a bearing pin which is fixedly arranged within the receiving chamber.
- the bearing pin penetrates a bearing bore of the pawl, which is designed as an elongated hole, with play being provided through the elongated hole, which enables the locking bolt to be adjusted in the direction of a coupling body accommodated in the hook body.
- the transfer movement of the locking bolt between a locking and an unlocking position is - apart from the game mentioned - an exclusive rotary movement about the bearing pin.
- the locking bolt is positively secured in the locking position. by means of a locking pin which penetrates mutually aligned bores of the hook body and the locking bolt.
- Another bolt which is fixedly attached within the receiving chamber, forms a bolt stop for transferring the locking bolt into the locking position.
- the side of the locking bolt facing said bolt is designed as a guide surface, so that pivoting the actuating lever results in a rotation of the articulation point between the actuating lever and locking bolt and a simultaneous displacement movement of the aforementioned bearing bolt of the actuating lever along the walls of the elongated hole, whereby the bearing pin is inserted under the action of the tension spring mentioned in a locking recess of the slot and thus secures the unlocking position of the locking bolt.
- the locking bolt is thus guided by a Pivotal movement around its point of articulation on the actuating lever and characterized by a displacement along said guide surface.
- Coupling hooks according to the sites DE 42 35 780 C1, DE 39 12 414 C1 and US 4 071 263 are characterized by a relative degree of complexity.
- the bearing bolt which cooperates with the locking bolt and is guided within the elongated hole, is located both in the locked and unlocked position at one and the same end of the elongated hole, so that a relative movement of the bearing bolt with respect to the elongated hole is only possible in connection with an automatic opening of the locking system during a There is a coupling process in which an external force is exerted on the locking bolt by means of the coupling body to be inserted.
- This coupling hook is also characterized by its relative complexity.
- the object of the invention to design a coupling hook of the type described in the introduction with a view to a simpler construction.
- This object is achieved in such a coupling hook by the features of the characterizing part of claim 1.
- the locking bolt is provided with an elongated hole which serves to receive a fixedly arranged bearing bolt, so that the position of the locking bolt is given by the interaction of this bearing bolt, the tension member and the tension spring also attached to the locking bolt.
- the system of bearing pin and slot thus has the function of a link-like guide for the locking bolt, which is in its one end position, namely the locking position under spring tension.
- the bearing pin forms a bearing point, whereby - based on this bearing point - a tension spring and the tension member are attached to one end of the locking bolt and - the opposite end rests on mating surfaces of a recess through which the locking bolt extends in order to be able to use it End facing the recess to form a locking section by means of which a coupling body is secured within the ball socket-like receptacle of the bearing body.
- a tension spring Apart from a fastening point for a tension spring, only a fixed bearing pin is thus required within the receiving chamber for the locking bolt, which results in a structural simplification compared to the prior art set out at the beginning.
- the interaction of the tension spring, the above-mentioned mounting point and the system of the bearing pin and elongated hole result in a clear position of the locking bolt, in particular in the locking position.
- a clear position of the locking bolt in the locking position is given after the elongated hole has at one end a latching recess which is open in the direction of action of the tension spring and is intended for receiving the bearing bolt.
- the locking bolt is held under spring force at its end extending through the aforementioned recess on a counter surface of the recess.
- the elongated hole in particular the long sides thereof, are designed in accordance with the features of claim 2 as - seen in plan view - circular arc elements or other curved surface sections, the curvature being concave toward the top in any case?
- a latching recess is formed on one end of the elongated hole and is open in the direction of action of the tension spring, this latching recess can also be connected to the curvature of the elongated hole without any problems.
- claims 3, 4 are aimed at improving the ease of use of the coupling hook. This is then positively locked in the unlocked position. This can be achieved in a particularly simple manner by means of a latching groove which is formed on a suitable point on the tension member and which is intended to interact with a bolt which is fixedly arranged within the receiving chamber of the coupling hook.
- the coupling hook according to the invention is distinguished by a particularly simple and clear structure.
- the coupling hook 2 consists globally of a hook body 4 arranged on the upper side for receiving a spherical coupling body 3 and a locking bolt arrangement 5 which can be actuated by means of a cable, by means of which a locking bolt 6 can be moved between a locking and an unlocking position.
- the locking bolt 6 is mounted within the receiving chamber 10, specifically on a bearing bolt 12 extending perpendicular to the plane of the drawing, the bearing bolt 12 being received in an elongated hole 13 of the locking bolt 6.
- the side walls of the elongated hole 13, which extend globally in the receiving chamber 10 in the direction of the lower link 1, are formed by circular arcs, and furthermore, at the end of the elongated hole facing the lower link 1, a latching recess 14 extending in the direction of the opening 11 is integrally formed, the wall surfaces of which can be circular cylindrical. It is essential that the elongated hole 13 including the latching recess 14 is dimensioned such that the locking bolt 6 is arranged to be movable relative to the bearing pin 12 in accordance with the extent of the elongated hole 13.
- a bolt penetrating the receiving chamber 10 is designated. to which one end of the tension spring 16 is attached, the other end of which is connected to a point 17 of the locking bolt 6.
- the locking bar 6 is held in the locking position shown in the drawing, the locking position being characterized in that the bearing pin 12 is located within the locking recess 14 and - likewise under the action of the tension spring 16 with a stop section 18, which is located on the side facing away from point 17 Bearing pin 12 is located, abuts a facing wall portion of the recess 9.
- a locking portion 19 formed on the end thereof facing the receptacle 7 is at least partially above the receptacle 7 and in this way secures the coupling body 3 within the receptacle 7 in a form-fitting manner.
- This locking position is thus secured elastically.
- a further security is given by the shape of the locking recess 14, which only allows rotation about the axis of the bearing pin 12, but not a shift globally in the longitudinal direction of the slot 13.
- the locking bolt 6 is clearly positioned in the locking position.
- Tension member 19 rests on the outer edge of the opening 11 via a stop ring 22 formed on it.
- the cylindrical latching recess 14 extends globally in the direction of the arrow 24.
- the elongated hole 13 extends globally in a direction parallel to the direction of action of the tension spring 16, so that the locking bolt 6 in the unlocking position under a balance of forces between the tensile force in the direction 24 of a cable pull and via the tension spring 16 applied counterforce. Cancellation of the cable pulling force thus leads solely to the locking position shown in the drawing under the action of the tension spring 16. Due to the curved design of the side walls of the elongated hole 13, this movement into the locking position, which in turn is designed as a combined pivoting and sliding movement, is also clearly guided.
- Another bolt is designated by 28, which is arranged within the opening 11 and which is intended to cooperate with a locking groove 29 of the web 20.
- the position of the locking groove 29 is created with the measuring gauges such that the tension member 19 can be positively fixed in the unlocking position by means of an engagement of the bolt 28 in the locking groove 29.
- the coupling hook according to the invention is an extraordinarily simple, characterized by only a few parts, im.Verglei.ch on the relevant state of the art. Technology, easier. , has a structure.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Zoology (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Transportation (AREA)
- Agricultural Machines (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002338393A AU2002338393A1 (en) | 2001-04-24 | 2002-04-12 | Coupling hook for the lower link of a tractor |
PL367041A PL198481B1 (pl) | 2001-04-24 | 2002-04-12 | Hak zaczepowy do podnośnika ciągnika |
EP02742888A EP1392097A2 (de) | 2001-04-24 | 2002-04-12 | Kupplungshaken für den unterlenker eines traktors |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10120059.5 | 2001-04-24 | ||
DE2001120059 DE10120059B4 (de) | 2001-04-24 | 2001-04-24 | Kupplungshaken für den Unterlenker eines Traktors |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002085095A2 true WO2002085095A2 (de) | 2002-10-31 |
WO2002085095A3 WO2002085095A3 (de) | 2003-01-03 |
Family
ID=7682537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/004078 WO2002085095A2 (de) | 2001-04-24 | 2002-04-12 | Kupplungshaken für den unterlenker eines traktors |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1392097A2 (de) |
AU (1) | AU2002338393A1 (de) |
DE (1) | DE10120059B4 (de) |
PL (1) | PL198481B1 (de) |
WO (1) | WO2002085095A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1604558A1 (de) * | 2004-06-08 | 2005-12-14 | Kabushiki Kaisha Delica | Kupplungsvorrichtung zum Anhängen eines Gerätes an einen Traktor |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI120295B (fi) * | 2006-04-27 | 2009-09-15 | Lh Lift Oy | Traktorin kolmipistekiinnitykseen tarkoitettu kytkinkoura |
IT201900005836A1 (it) * | 2019-04-16 | 2020-10-16 | Cbm Spa | Dispositivo di aggancio per veicoli di traino |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4071263A (en) * | 1976-04-17 | 1978-01-31 | Jean Walterscheid Gmbh | Coupling hook for a three-point connection on a tractor |
US4108464A (en) * | 1976-04-27 | 1978-08-22 | Jean Walterscheid Gmbh | Coupling hook for a three-point attachment of a tractor |
EP0187733A2 (de) * | 1985-01-11 | 1986-07-16 | Omero Cornia | Automatischer schnell lösender Kupplungshaken für ein Dreipunktgestänge mit einem doppelten Blockiersystem gegen unerwünschtes Entkuppeln |
DE3912414C1 (de) * | 1989-04-15 | 1990-06-13 | Jean Walterscheid Gmbh, 5204 Lohmar, De | |
DE3928699A1 (de) * | 1989-08-30 | 1991-03-14 | Walterscheid Gmbh Jean | Kupplungshaken fuer unterlenker |
DE4235780C1 (de) * | 1992-10-23 | 1993-08-19 | Jean Walterscheid Gmbh, 5204 Lohmar, De | |
US5497835A (en) * | 1993-05-12 | 1996-03-12 | Gkn Walterscheid Gmbh | Coupling hook for the lower steering arms of a three-point attaching device of a tractor |
-
2001
- 2001-04-24 DE DE2001120059 patent/DE10120059B4/de not_active Expired - Fee Related
-
2002
- 2002-04-12 AU AU2002338393A patent/AU2002338393A1/en not_active Abandoned
- 2002-04-12 PL PL367041A patent/PL198481B1/pl not_active IP Right Cessation
- 2002-04-12 EP EP02742888A patent/EP1392097A2/de not_active Withdrawn
- 2002-04-12 WO PCT/EP2002/004078 patent/WO2002085095A2/de not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4071263A (en) * | 1976-04-17 | 1978-01-31 | Jean Walterscheid Gmbh | Coupling hook for a three-point connection on a tractor |
US4108464A (en) * | 1976-04-27 | 1978-08-22 | Jean Walterscheid Gmbh | Coupling hook for a three-point attachment of a tractor |
EP0187733A2 (de) * | 1985-01-11 | 1986-07-16 | Omero Cornia | Automatischer schnell lösender Kupplungshaken für ein Dreipunktgestänge mit einem doppelten Blockiersystem gegen unerwünschtes Entkuppeln |
DE3912414C1 (de) * | 1989-04-15 | 1990-06-13 | Jean Walterscheid Gmbh, 5204 Lohmar, De | |
DE3928699A1 (de) * | 1989-08-30 | 1991-03-14 | Walterscheid Gmbh Jean | Kupplungshaken fuer unterlenker |
DE4235780C1 (de) * | 1992-10-23 | 1993-08-19 | Jean Walterscheid Gmbh, 5204 Lohmar, De | |
US5497835A (en) * | 1993-05-12 | 1996-03-12 | Gkn Walterscheid Gmbh | Coupling hook for the lower steering arms of a three-point attaching device of a tractor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1604558A1 (de) * | 2004-06-08 | 2005-12-14 | Kabushiki Kaisha Delica | Kupplungsvorrichtung zum Anhängen eines Gerätes an einen Traktor |
US7225883B2 (en) | 2004-06-08 | 2007-06-05 | Kabushiki Kaisha Delica | Device for coupling implement to agricultural tractor |
Also Published As
Publication number | Publication date |
---|---|
PL198481B1 (pl) | 2008-06-30 |
AU2002338393A1 (en) | 2002-11-05 |
WO2002085095A3 (de) | 2003-01-03 |
DE10120059A1 (de) | 2002-11-14 |
DE10120059B4 (de) | 2006-07-06 |
EP1392097A2 (de) | 2004-03-03 |
PL367041A1 (en) | 2005-02-21 |
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