WO2003037698A1 - Zahnstange - Google Patents
Zahnstange Download PDFInfo
- Publication number
- WO2003037698A1 WO2003037698A1 PCT/EP2002/011796 EP0211796W WO03037698A1 WO 2003037698 A1 WO2003037698 A1 WO 2003037698A1 EP 0211796 W EP0211796 W EP 0211796W WO 03037698 A1 WO03037698 A1 WO 03037698A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tube
- cutout
- rack
- rack according
- toothed strip
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/26—Racks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/12—Steering gears mechanical of rack-and-pinion type
- B62D3/126—Steering gears mechanical of rack-and-pinion type characterised by the rack
Definitions
- the invention relates to a rack, in particular for use in steering gears.
- Such a rack serves to convert the rotary movement of a drive pinion or a gear into a longitudinal movement of the rack.
- This serves, for example, to convert the rotary movement of a steering wheel of a motor vehicle into a movement of the wheels to be steered via a steering gear in which the toothed rack is accommodated.
- Racks according to the prior art are very expensive to manufacture. They have to be cleared, hardened, tempered, aligned and primed, which causes a large number of work steps and thus leads to high costs.
- the object of the invention is to improve the rack in such a way that the number of work steps and thus the manufacturing costs are significantly reduced.
- a toothed rack consists of a tube which has a cutout in its wall and a toothed strip which is inserted into the cutout and is welded to the wall of the tube.
- the cutout has two end faces, which extend in a plane radial to the longitudinal axis of the tube, and two longitudinal sides, which extend parallel to the longitudinal axis of the tube, and that the toothed strip has a rectangular base body, are formed on the teeth, the base body being welded to the longitudinal sides of the cutout.
- a particularly advantageous embodiment is thus created in which only small sections of the tube and toothed strip are involved in the welding and the two components cannot therefore easily warp.
- the toothed strip can be supported on the end faces of the tube and is thus mechanically stabilized.
- the welding can be a laser welding, whereby a particularly precise and precise welding can be achieved.
- the cutout is laser cut. This enables a particularly precise execution of the cutout.
- FIG. 2 shows an axial cross section through the rack according to the invention.
- the tube 10 has a cutout 12, consisting of two end faces 14a, 14b, which extend in a plane radial to the longitudinal axis of the tube, and two longitudinal sides 16a and 16b, which extend parallel to the longitudinal axis of the tube.
- FIG. 2 shows a cross section through a rack in a preferred embodiment of the invention.
- a toothed strip 18 is inserted into the cutout 12 of the tube 10.
- the toothed strip 18 consists of a base body 20 with teeth 22, the base body being welded to the longitudinal sides 16a, 16b of the cutout 12 at the connection points 24a and 24b.
- the toothed strip 18 is designed such that it tapers upward in a cross section perpendicular to its longitudinal axis, so that it does not protrude beyond the cross section of the tube.
- the rack for example in a steering gear
- the rack is to be guided with a precise fit in one or more guide tubes, because then precise guidance of the rack in the guide tube is ensured and the rack does not move in its movement through toothed sections that project beyond the cross section is hindered.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Gears, Cams (AREA)
- Transmission Devices (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20117694U DE20117694U1 (de) | 2001-10-30 | 2001-10-30 | Zahnstange |
DE20117694.7 | 2001-10-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003037698A1 true WO2003037698A1 (de) | 2003-05-08 |
Family
ID=7963400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/011796 WO2003037698A1 (de) | 2001-10-30 | 2002-10-22 | Zahnstange |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE20117694U1 (de) |
WO (1) | WO2003037698A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20117694U1 (de) * | 2001-10-30 | 2002-03-07 | Trw Fahrwerksyst Gmbh & Co | Zahnstange |
DE102008040641A1 (de) * | 2008-07-23 | 2010-01-28 | Zf Lenksysteme Gmbh | Zahnstange |
DE102016120932A1 (de) | 2016-11-03 | 2018-05-03 | Robert Bosch Gmbh | Verfahren zum Herstellen einer Zahnstange und Zahnstange |
DE102017211591A1 (de) | 2017-07-07 | 2019-01-10 | Robert Bosch Gmbh | Zahnstange für ein Lenksystem eines Kraftfahrzeugs und Lenksystem |
DE102017213011A1 (de) * | 2017-07-28 | 2019-01-31 | Robert Bosch Gmbh | Zahnstange und Verfahren zum Herstellen einer Zahnstange |
DE102018203767A1 (de) | 2018-03-13 | 2019-09-19 | Robert Bosch Gmbh | Zahnstange für ein Lenksystem |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3834247A (en) * | 1972-05-31 | 1974-09-10 | M Belsdorf | Toothed rack for a rack-and-pinion steering gear of motor vehicles |
DE4006038A1 (de) * | 1990-02-26 | 1991-08-29 | Schneider Gesenkschmiede | Zahnstange, insbesondere fuer kraftfahrzeuge |
JPH11270657A (ja) * | 1998-03-20 | 1999-10-05 | Toyoda Mach Works Ltd | ラック軸 |
DE20117694U1 (de) * | 2001-10-30 | 2002-03-07 | Trw Fahrwerksyst Gmbh & Co | Zahnstange |
-
2001
- 2001-10-30 DE DE20117694U patent/DE20117694U1/de not_active Expired - Lifetime
-
2002
- 2002-10-22 WO PCT/EP2002/011796 patent/WO2003037698A1/de not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3834247A (en) * | 1972-05-31 | 1974-09-10 | M Belsdorf | Toothed rack for a rack-and-pinion steering gear of motor vehicles |
DE4006038A1 (de) * | 1990-02-26 | 1991-08-29 | Schneider Gesenkschmiede | Zahnstange, insbesondere fuer kraftfahrzeuge |
JPH11270657A (ja) * | 1998-03-20 | 1999-10-05 | Toyoda Mach Works Ltd | ラック軸 |
DE20117694U1 (de) * | 2001-10-30 | 2002-03-07 | Trw Fahrwerksyst Gmbh & Co | Zahnstange |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 01 31 January 2000 (2000-01-31) * |
Also Published As
Publication number | Publication date |
---|---|
DE20117694U1 (de) | 2002-03-07 |
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