WO2004084618A1 - Haspelzinken - Google Patents
Haspelzinken Download PDFInfo
- Publication number
- WO2004084618A1 WO2004084618A1 PCT/EP2003/003035 EP0303035W WO2004084618A1 WO 2004084618 A1 WO2004084618 A1 WO 2004084618A1 EP 0303035 W EP0303035 W EP 0303035W WO 2004084618 A1 WO2004084618 A1 WO 2004084618A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- section
- reel
- fastening
- pull
- bore
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D57/00—Delivering mechanisms for harvesters or mowers
- A01D57/01—Devices for leading crops to the mowing apparatus
- A01D57/02—Devices for leading crops to the mowing apparatus using reels
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D80/00—Parts or details of, or accessories for, haymakers
- A01D80/02—Tines; Attachment of tines
Definitions
- the invention relates to a reel prong for attachment to a support tube of a reel, which is pierced transversely and in each case has inwardly directed recesses in the region of two fastening bores lying on a bore axis and running through the wall of the support tube.
- the reel tine can be fixed to the carrier tube by means of a screw.
- the reel of a harvesting machine generally comprises a plurality of unclean central tubes, radially spaced and circumferentially distributed support tubes, which are carried by corresponding bearing arms which are connected to the central tube.
- the carrier tubes themselves are rotatably mounted on the bearing arms. Since the width of a mowing table of a harvesting machine is particularly large in modern machines, the reels are also correspondingly long and also the support tubes associated with them.
- the carrier tubes carry reel tines that are distributed along their length. For example, 40 and more reel tines are usually attached to a six-meter-long support tube. With a reel with six support tubes, this results in 240 tines.
- Steel reel tines are preferred for harvests that are difficult to grasp and pull into the cutting deck of the mower. For example, these are used for cereals and in particular cereals stored on the ground or for grass harvesting.
- plastic reel tines For other crops, such as beans and other legumes preferably used plastic reel tines.
- the above-mentioned crops usually have to be cut very deep on the ground, since the first pods have already grown on the stems very close to the ground.
- very flexible cutter bars are used for these crops, which are in contact with the ground in front of the cutting table in the working position and cut off the crop. If the ground is uneven, these flexible cutter bars at least partially execute a vertical movement with respect to the cutting table.
- the transverse fastening bores are punched out in the case of support tubes, with deformations in the form of indentations. If the perforation is done from diametrical sides, the carrier tube receives two opposite funnel-shaped indentations.
- Various plastic reel tines are known that can be attached to such support tubes.
- the US 48 82 899 describes a reel tine made of plastic, which has a clamp-like area which surrounds the support tube and the two opposite fastening sections are screwed together by a screw.
- a protrusion is formed in the bore area enclosed by the clamp section, which protrudes into the indentation or an indentation of the carrier tube.
- the reel tine is shaped like a wing on the side, one of which has a recess in its free end face and the other has a projection.
- the wing-like molded profile strips extend over half the distance to an adjacent reel tine and engage there with the oppositely aligned profile strip of the neighboring tine through the tongue and groove connection.
- this connection is unstable, so that when a reel tine adjusts due to overloading on the carrier tube, the tongue and groove connection is also pulled apart.
- the distances between the reel tines on the carrier tube must match exactly in this construction. Subsequent adjustment when exchanging is not possible.
- the US 61 99 358 relates to a reel tine made of plastic, which has a fastening section with a recess which forms a contact surface with a portion of the outer surface of the carrier tube.
- the carrier tube has the two fastening bores, which are arranged on a bore axis, which, unlike the conventional design, are not part of the indentations.
- a pin extension is provided in which there is a bore. The reel tine engages with this pin attachment through the mounting hole into the interior of the carrier tube.
- a screw with a countersunk head is screwed in from the opposite mounting hole and thus holds the reel tines on the support tube.
- the pull-in section is rod-shaped and curved and has a front engagement surface. It tapers in width from an approximately central section towards its free end.
- the disadvantage is that the plastic spigot must absorb the entire load in connection with the threaded screw. A strong tensile force acts on the screw under load, so that loosening often occurs.
- US 63 24 823 B1 describes a plastic reel tine which can be fastened to a support tube provided with diametrical indentations. It has a fastening section which is elongated, with conical shaped thickenings being provided on the extensions, which fill in the indentations of the carrier tube. A screw is passed through these thickenings and the support tube and the same is braced by a nut screwed onto the cap screw. The thickenings also engage in the diametrical fastening holes. It is particularly disadvantageous that the use of a cap screw with nut leads to the diameter increasing and the area protruding therefrom leads to slightly winding Can catch crops on it.
- the object of the invention is to provide a reel tine whose pull-in section and fastening section are made in one piece from plastic and which can be securely positioned and fastened to a carrier tube, so that no twisting can occur on the carrier tube or even the screw connection even under the heaviest loads solves. It should also be ensured that the crop cannot get caught.
- the reel tine should also be able to be used on pipes having different indentations, or also on pipes which have no indentations, without a change in shape being required on the fastening section and pull-in section.
- a reel tine for attachment to a carrier tube of a reel, which is pierced transversely to form two fastening bores and in particular in each case in the region of the two fastening bores lying inwards on a bore axis and running through the wall of the carrier tube, directed inwards a.
- Screw comprising a pull-in section
- connection sleeve can be used to adapt to differently shaped support tubes without having to change the connecting section that is integral with the pull-in section. So the connecting sleeve can be adapted to the different hole shapes of the mounting holes in the support tube. It is also advantageous that this connecting sleeve can be made from a wear-resistant material that is less sensitive to shear stress. A sufficiently favorable connection to the connecting sleeve can be established via the depth of the first bore section in the fastening section. Furthermore, the contact surface of the recess of the fastening section can also be designed in such a way that it can be adapted or fastened to support tubes having different diameters.
- the connecting sleeve has a collar which separates the first sleeve section from the second sleeve section and projects radially therefrom.
- This collar can be used, for example, to shape the molding. fill.
- the pull-in section has at least one reinforcing rib on its surface facing away from the front engagement surface, which extends from the fastening section and ends before a free end of the pull-in section.
- a particularly favorable design results if two ribs are provided which, starting from the fastening section, approach each other in the direction of the free end and merge, for example.
- the ribs are at their greatest distance in the area of the fastening section. It is preferably provided that the height of the ribs towards the free end of the pull-in Cut decreases.
- the width of the engagement surface of the pull-in section can also decrease towards the free end.
- the one-piece area consisting of the connecting section and the pull-in section is made of an elastic plastic. It is preferably provided that the reel tine is made of a polyamide material (PA), a polyoxymethylene material (POM) or a polypropylene material (PP).
- the connecting sleeve is preferably made of metal, in particular steel, or a tough, hard plastic.
- the fastening section has grooves on its two side surfaces for receiving the ends of a profiled strip.
- the division of the fastening hole on the carrier tube is not exactly adhered to, it is possible to adapt the profile strips to the given conditions during replacement or at the place of use by cutting a larger profile strip to length.
- a profiled strip is integrally formed on one side of the fastening section and the fastening section has a groove on the side surface facing away from it for receiving the. Has profile strip of an adjacent, reel tine. If a sufficiently long profile strip length is always provided, an adaptation on site during replacement is definitely possible.
- FIG. 1 shows a first embodiment of a reel tine according to the invention in an exploded side view, together with the cross-sectioned support tube and the screw for fastening,
- FIG. 2 shows the reel tine according to FIG. 1 mounted on the carrier tube with its fastening area in cross section
- FIG. 3 shows a rear view of the reel tines according to FIG. 2 in the direction of arrow A from FIG. 2,
- FIG. 4 shows a rear view of another embodiment of a reel tine with a profile strip molded on one side and with the inserted connecting sleeve
- FIG. 5 shows a side view of the reel tine of FIG. 4 in the direction of arrow B of FIG. 4 with the molded groove for the profile strip
- FIG. 6 shows two reel tines with a connecting bar, spaced apart from one another on a carrier tube
- FIG. 7 shows a cross section Vll-Vll from FIG. 6,
- Figure 8 shows another embodiment of a. Reel tine with two reinforcing ribs in rear view and
- FIG. 9 shows a cross section IX-IX according to FIG. 8.
- a first embodiment of a reel tine 1 is shown in an exploded view with respect to mounting on a support tube 2 of a reel.
- the carrier tube 2 has a first fastening hole 3 and a second fastening hole 4 arranged on the same hole axis 5. These lie diametrically opposite one another and are part of a first indentation 6 or second indentation 7. These indentations 6, 7 are offset inwards relative to the outer surface 8 of the carrier tube 2 on the axis of rotation 9 of the carrier tube 2.
- the reel tine 1 comprises a pull-in section 10 with the engagement surface 11 lying at the front in the direction of rotation of the carrier tube 2 and the fastening section 12 formed in one piece therewith.
- the reel tine 1 has a free end 14 from the fastening section 12 and a recess diametrically to the free end 14 in the fastening section 12 with the contact surface 13 for contacting the outer surface 8 of the carrier tube 2. From the contact surface 11 goes in the direction of Retracting section 10 a first bore section 16 with a larger diameter, from which in turn a second bore section 17 extends. Furthermore, a connecting sleeve 18 can be seen in Figure 1, which has a through hole 19.
- the connecting sleeve 18 has a first sleeve section 20 which is designed to match the first bore section 16 in the fastening section 12. It also has a second sleeve section 21, which fits to the first fastening bore 7, ie passes through it.
- the connecting sleeve 18 also has a collar 22 which separates the first sleeve section 20 from the second sleeve section 21 and projects radially beyond the axis 23 of the through hole 19.
- the collar 22 at least partially fills the indentation 7. In the event that a carrier tube is provided without an indentation, the collar can also be omitted.
- the connecting sleeve 18 is made of a much harder and more shear-resistant material. example, made of metal, as the tine 1 and absorbs the shear forces in the transmission of the forces acting on the pull-in section 10 and forwards them into the carrier tube 2.
- Figures 2 and 3 show the reel tine 1 in association with the support tube 2, in the assembled state, which is fixed on the support tube 2 via the screw 24. Furthermore, the rib 15 can be seen for reinforcement. This starts from the fastening section 12 and ends before the free end 14.
- FIGS. 4 to 6 show an embodiment of a reel tine 101, which essentially corresponds to the embodiment according to FIGS. 1 to 3 with regard to the attachment to the carrier tube, so that with regard to the description, these parts are referred to the description for FIGS. 1 to 3.
- Components or sections which correspond to those of the embodiment according to FIGS. 1 to 3 are provided with position signs which are increased by a numerical value 100 compared to those of FIGS. 1 to 3. However, the differences are described below.
- connection cut 112 formed a profile strip 27 which extends laterally away from the connecting portion 112.
- the side surface of the connecting section 112 facing away from the profile strip 27 has a groove 28, the cross section of which is adapted to that of the profile strip 27.
- FIG. 6 shows the mutual assignment of two reel tines 101 to a carrier tube 2, it being evident that the profile strip 27 connected to the reel tine 101 on the left in the drawing engages with its free end in the groove 28 located in the reel tine 101 shown on the right is.
- FIGS. 8 and 9 show a further embodiment of a reel tine according to the invention, the components and sections used to attach the reel tine 201 to those in relation to those in the embodiment in accordance with FIG. 1 being provided with position signs which are increased by the numerical value 200 in relation to them.
- the attachment of the reel tine 201 and in particular the design of the attachment section 212 and the connecting sleeve 218 correspond to the embodiment according to FIG. 1, so that the description of FIG. 1 is referred to for the description thereof.
- FIGS. 8 and 9 only serve to explain a further reinforcement of the reel tine 201 in the region of the pull-in section 210 by means of two ribs 215 which, starting from the fastening section 212, on which they are further apart, are guided to an area where they are united. This results in higher strength.
- the cross section of these ribs 215 can be seen in FIG. 9.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Outside Dividers And Delivering Mechanisms For Harvesters (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Winding Of Webs (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0318208-8A BR0318208A (pt) | 2003-03-24 | 2003-03-24 | dente de dobadoura |
DE20321082U DE20321082U1 (de) | 2003-03-24 | 2003-03-24 | Haspelzinken |
DE20321124U DE20321124U1 (de) | 2003-03-24 | 2003-03-24 | Haspelzinkenanordnung |
AU2003221516A AU2003221516A1 (en) | 2003-03-24 | 2003-03-24 | Reel tine |
PCT/EP2003/003035 WO2004084618A1 (de) | 2003-03-24 | 2003-03-24 | Haspelzinken |
CA002519829A CA2519829A1 (en) | 2003-03-24 | 2003-03-24 | Reel tine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2003/003035 WO2004084618A1 (de) | 2003-03-24 | 2003-03-24 | Haspelzinken |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004084618A1 true WO2004084618A1 (de) | 2004-10-07 |
Family
ID=33040871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/003035 WO2004084618A1 (de) | 2003-03-24 | 2003-03-24 | Haspelzinken |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU2003221516A1 (de) |
BR (1) | BR0318208A (de) |
CA (1) | CA2519829A1 (de) |
DE (2) | DE20321082U1 (de) |
WO (1) | WO2004084618A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2856855A1 (de) * | 2013-10-04 | 2015-04-08 | Deere & Company | Haspelfinger mit Zentrierstift |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1216601B (de) * | 1964-07-01 | 1966-05-12 | Hans Kramer | Rechen |
US4901511A (en) * | 1988-10-13 | 1990-02-20 | Yarmashev Jury N | Harvester reel rake bar |
EP0475405A2 (de) * | 1990-09-12 | 1992-03-18 | SAME S.p.A. | Zinken für Erntemaschinen |
US5595052A (en) * | 1995-08-04 | 1997-01-21 | Deere & Company | Bat for a reel having an anti-wrap extension |
US6199357B1 (en) * | 1998-11-13 | 2001-03-13 | Alamo Group Inc. | Reel pickup tine |
US6199358B1 (en) * | 1999-06-11 | 2001-03-13 | Crary Company | Reel tine assembly |
-
2003
- 2003-03-24 AU AU2003221516A patent/AU2003221516A1/en not_active Abandoned
- 2003-03-24 WO PCT/EP2003/003035 patent/WO2004084618A1/de not_active Application Discontinuation
- 2003-03-24 DE DE20321082U patent/DE20321082U1/de not_active Expired - Lifetime
- 2003-03-24 BR BRPI0318208-8A patent/BR0318208A/pt unknown
- 2003-03-24 DE DE20321124U patent/DE20321124U1/de not_active Expired - Lifetime
- 2003-03-24 CA CA002519829A patent/CA2519829A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1216601B (de) * | 1964-07-01 | 1966-05-12 | Hans Kramer | Rechen |
US4901511A (en) * | 1988-10-13 | 1990-02-20 | Yarmashev Jury N | Harvester reel rake bar |
EP0475405A2 (de) * | 1990-09-12 | 1992-03-18 | SAME S.p.A. | Zinken für Erntemaschinen |
US5595052A (en) * | 1995-08-04 | 1997-01-21 | Deere & Company | Bat for a reel having an anti-wrap extension |
US6199357B1 (en) * | 1998-11-13 | 2001-03-13 | Alamo Group Inc. | Reel pickup tine |
US6199358B1 (en) * | 1999-06-11 | 2001-03-13 | Crary Company | Reel tine assembly |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2856855A1 (de) * | 2013-10-04 | 2015-04-08 | Deere & Company | Haspelfinger mit Zentrierstift |
Also Published As
Publication number | Publication date |
---|---|
AU2003221516A1 (en) | 2004-10-18 |
CA2519829A1 (en) | 2004-10-07 |
BR0318208A (pt) | 2006-03-21 |
DE20321124U1 (de) | 2005-12-22 |
DE20321082U1 (de) | 2005-12-22 |
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