EP1799498A2 - Getriebestufe für einen fahrzeugsitz - Google Patents
Getriebestufe für einen fahrzeugsitzInfo
- Publication number
- EP1799498A2 EP1799498A2 EP05786045A EP05786045A EP1799498A2 EP 1799498 A2 EP1799498 A2 EP 1799498A2 EP 05786045 A EP05786045 A EP 05786045A EP 05786045 A EP05786045 A EP 05786045A EP 1799498 A2 EP1799498 A2 EP 1799498A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- gear stage
- housing
- bearing
- gear
- drive shaft
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
- B60N2/225—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
- B60N2/225—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
- B60N2/2252—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms in which the central axis of the gearing lies inside the periphery of an orbital gear, e.g. one gear without sun gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
-
- 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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
-
- 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
- F16H13/00—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members
- F16H13/02—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members without members having orbital motion
- F16H13/04—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members without members having orbital motion with balls or with rollers acting in a similar manner
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/15—Intermittent grip type mechanical movement
- Y10T74/1558—Grip units and features
Definitions
- the invention relates to a gear stage for a vehicle seat having the features of the preamble of claim 1.
- Such gear stages are used for motor-adjustable vehicle seats, in order to achieve an optimum seat position for the occupant by adjusting individual components, wherein the gear stage driven by a motor reduces the speed by means of gears of different diameters and at the same time increases the output torque ,
- the invention is based on the object to improve a gear stage of the type mentioned ge called. This object is achieved by a Ge gear stage with the features of claim 1.
- Advantageous embodiments are the subject of the subclaims.
- the gear stage has at least one gear ball row on which at least one, in particular two drive surfaces of the drive shaft, at least one output face of the output shaft and at least one housing face of a housing lie tangentially, there is a low-noise, single-stage gear arrangement with high gear ratio at low gear Required space available.
- the gear stage is preferably constructed as a concentric radially symmetrical hollow shaft gear, wherein missing imbalances and missing eccentric movements of low noise benefit.
- the balls of the gearbox Ball row which can also be replaced by equivalent rolling elements, ensure quiet running.
- the use of identical balls ent ⁇ falls the sorting and storage costs during assembly.
- the arrangement of the balls makes it possible that all balls are supported while avoiding misalignment and increased friction.
- the gear ball row is pressed by three components rotating differently from one another with preferably four contact surfaces, one component having two contact surfaces, i. a groove.
- the component with the two contact surfaces determines the speed profile of the rolling ball in each case via the two contact points. Therefore, the drive surfaces, the output surface and the housing surface preferably extend obliquely inclined at the contact points with the gear ball row to a plane perpendicular to the drive shaft, wherein the two drive surfaces in each case at the same angle to the plane, i. are arranged mirror-symmetrically to each other with respect to this plane.
- a preferred deviation of the inclination angle of one of the four surfaces from the other results in a different effective radius for the rotational movement of the associated component, from which a speed difference follows.
- the difference in the angle is preferably very small compared to the sum of the angles, so that there is a large reduction with this ball-roller differential speed gear, ie a large ratio between the input speed and the output speed.
- the drive shaft is preferably arranged radially inside, so that the external output can transmit a high torque in a compact space.
- the housing remains relative to the drive shaft and the output shaft preferably at rest and also serves to support the two. Although a ball cage or web for separate storage of the balls is not excluded, to avoid the associated friction losses but less preferred.
- a Spann ⁇ bearing for example, an angular contact ball bearings, tapered roller bearings, Axialpendelrollen ⁇ bearings, a combination of a classic axial and radial bearing or a Gleit ⁇ camp, between the housing and one of the output shaft associated carrier axially effective.
- an elastic element such as a plate spring, another spring steel or an integrated elastic wall member, the stiff trained waves, outer rings and balls simultaneously targeted and balanced in terms of balance of power.
- Drive shaft and output shaft can only rotate relative to the housing, but not move or tilt.
- the predetermined by the gear ball row gear bearing and the clamping bearing which can be arranged axially and / or radially offset from each other or nested to achieve small diameters or short lengths, can be very close together to form a compact storage unit, or very far apart to increase the support distance. In the latter case, components of a driving motor can be arranged in the space.
- the gear stage is preferably used in a drive unit of a vehicle seat adjuster, particularly preferably for a geared fitting for adjusting the inclination of a backrest of the vehicle seat relative to a seat part.
- drive unit additionally has a motor.
- other purposes are also possible.
- FIG. 2 is a schematic representation of a vehicle seat
- Fig. 4 shows a second variant of the embodiment
- Fig. 5 shows a third variant of the embodiment.
- a vehicle seat 1 has a seat part 3 and a back 4 that can be tilted relative to the seat part 3.
- the backrest 4 is attached by means of two gear fittings 6 on the seat part 3.
- a drive unit 10 is mounted on the backrest 4 for driving the transmission fittings 6 connected by a transmission rod.
- the drive unit 10 has an engine 12 and a gear stage 14 provided on the output side by the engine 12, which is in gear connection with the transmission rod stands.
- the motor 12 is an electric motor, for example an electronically commutated motor with stator and rotor.
- the gear stage 14 serves to reduce the rotation of a drive shaft 16, which is driven by the motor 12 and defines the directions used, into a slower rotation of an output shaft 18, by means of a ball-roller differential speed gearbox.
- the drive shaft 16 has a radially after Outside funnel-shaped opening groove 20 which is formed for example V-shaped or U-shaped, wherein the walls of the groove 20 drive surfaces 22 form. Senk ⁇ right to the central axis of the drive shaft 16 extends a plane E.
- Spiegelsymme ⁇ to plane E are the drive surfaces 22 of the groove 20 tangentially in Kunststoff ⁇ points B i (touch points) at an angle (X to the plane E at a Getriebekugel ⁇ row 24th
- the gear ball row 24 consists of at least three identical balls, two balls being present per ball B.
- the slot 20 thus opens at the contact points Bi at an angle of 2 (X symmetrical to the plane E.).
- the output surface 26 is located in contact points B 2 , one of each per ball of the Ge operating sphere row 24 is present, tangent to the transmission ball row 24 at an angle ß to the plane E on.
- the housing surface 28 is located in contact points B 3 , one of which per ball of the gear ball row 24 is present, tangent to the gear ball row 24 at an angle Y to the plane E.
- a support 30 of the output surface 26 a preferably integrally formed (or otherwise attached) flange of the output shaft 18 is provided, while a housing 32, the GeHouseflä ⁇ che 28 carries.
- the housing 32 supports the drive shaft 16 and the output shaft 18 in the manner described, so that no separate bearing is required for the waves (at low axial length).
- the carrier 30 and the region of the housing 32 with the housing surface 28 are formed as hollow rings.
- a Spann ⁇ bearing 40 is provided, which is primarily between the carrier 30 and the housing 32 is effective.
- the thrust bearing 40 are in addition to the carrier 30 and the housing 32 integrally formed on the housing 32 or attached elastic member 42, which is presently annular, and associated with a Spannkugel Research 44.
- the radial bearing 40 is presently designed as an angular contact ball bearing, wherein the clamping ball row 44 preferably directly between the support 30 (or output shaft 18) on the one hand and the elastic member 42 on the other hand is arranged and stored. But it is also possible to provide additional intermediate pieces 46 between one of these superimposed components and the clamping ball row 44.
- the drive shaft 16 may optionally be provided a support bearing 48, which is designed as a radial bearing. Due to the over-determination, the support bearing 48 must be aligned very precisely with the gear bearing formed by the row of gear balls 24. LIST OF REFERENCE NUMBERS
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Gear Transmission (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004049994A DE102004049994B3 (de) | 2004-10-14 | 2004-10-14 | Getriebestufe für einen Fahrzeugsitz |
PCT/EP2005/010352 WO2006042616A2 (de) | 2004-10-14 | 2005-09-24 | Getriebestufe für einen fahrzeugsitz |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1799498A2 true EP1799498A2 (de) | 2007-06-27 |
Family
ID=35853803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05786045A Withdrawn EP1799498A2 (de) | 2004-10-14 | 2005-09-24 | Getriebestufe für einen fahrzeugsitz |
Country Status (7)
Country | Link |
---|---|
US (1) | US7467827B2 (de) |
EP (1) | EP1799498A2 (de) |
JP (1) | JP2008516826A (de) |
KR (1) | KR20070063522A (de) |
CN (1) | CN100584655C (de) |
DE (1) | DE102004049994B3 (de) |
WO (1) | WO2006042616A2 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006005906A1 (de) | 2005-08-23 | 2007-08-30 | Keiper Gmbh & Co.Kg | Getriebestufe |
US8435150B2 (en) * | 2007-10-23 | 2013-05-07 | Keiper Gmbh & Co. Kg | Gear stage |
EP3495689A4 (de) * | 2016-08-03 | 2020-04-01 | NTN Corporation | Entschleunigungsvorrichtung |
US10415676B1 (en) * | 2016-10-06 | 2019-09-17 | X Development Llc | Roller traction drive |
DE102021119681A1 (de) | 2021-07-29 | 2023-02-02 | Adient Us Llc | Längseinsteller für einen fahrzeugsitz, sowie fahrzeugsitz |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1686446A (en) * | 1926-04-15 | 1928-10-02 | John A Gilman | Planetary transmission mechanism |
DE894184C (de) | 1943-01-06 | 1953-10-22 | Siemens Ag | Kugelgetriebe |
CH356972A (de) | 1955-09-23 | 1961-09-15 | Roller Gear Company Inc | Kugelreibungsgetriebe |
US3248960A (en) * | 1959-11-13 | 1966-05-03 | Roller Gear Ltd | Variable speed drive transmission |
US3237468A (en) * | 1960-05-13 | 1966-03-01 | Roller Gear Ltd | Variable speed drive transmission |
US3229538A (en) * | 1961-09-25 | 1966-01-18 | Roller Gear Ltd | Variable speed drive transmission |
GB1202104A (en) * | 1967-10-03 | 1970-08-12 | Asahi Seiki Kogyo Kabushiki Ka | Planet-ball stepless speed-changing device |
DE2928127A1 (de) | 1979-07-12 | 1981-02-19 | Planetroll Antriebe Gmbh | Stufenlos einstellbares kugelrollgetriebe |
DE3215923A1 (de) * | 1982-04-29 | 1983-11-03 | Neuweg Fertigung GmbH für Präzisionstechnik, 7932 Munderkingen | Drehmomentabhaengige anpressvorrichtung fuer ein stufenlos einstellbares kugelplanetengetriebe |
DE3321883A1 (de) | 1983-06-01 | 1984-12-06 | C. Rob. Hammerstein Gmbh, 5650 Solingen | Motorische verstellvorrichtung fuer fahrzeugsitze |
DE3335445A1 (de) | 1983-09-30 | 1985-04-18 | Neuweg Fertigung GmbH für Präzisionstechnik, 7932 Munderkingen | Stufenlos einstellbares kugelplanetengetriebe |
DE3560276D1 (en) * | 1984-04-18 | 1987-07-30 | Cousin Cie Ets A & M Freres | Round hinged part for use in seats of land, sea and air vehicles |
US4667525A (en) * | 1984-12-19 | 1987-05-26 | Henry Schottler | Variable speed frictional drive transmissions |
BR8603553A (pt) | 1985-07-29 | 1987-03-04 | Rinefas Ltd | Conjunto de transmissao e ventilador pensil |
DE3801930A1 (de) * | 1987-11-19 | 1989-06-01 | Bollmann Hydraulik | Bollmann-getriebe |
DD283669A5 (de) | 1987-11-19 | 1990-10-17 | Bollmann Hydraulik Gmbh,De | Getriebe |
FR2674195B1 (fr) * | 1991-03-19 | 1993-12-17 | Faure Automobile Bertrand | Mecanisme a train hypocyclouidal pour siege de vehicule comportant un frein anti-reversible a couple differentiel. |
DE19655146C2 (de) * | 1996-12-28 | 2001-04-19 | Giok Djien Go | Längs- und neigungsverstellbarer Kraftfahrzeugsitz |
DE19803448A1 (de) * | 1998-01-30 | 1999-08-05 | Schaeffler Waelzlager Ohg | Schaltbares Klemmgesperre |
DE19931818A1 (de) * | 1999-07-08 | 2001-01-11 | Maxon Motor Gmbh | Mehrstufiges Stirnradgetriebe |
US6592186B1 (en) * | 1999-09-09 | 2003-07-15 | Keiper Gmbh & Co. Kg | Driving mechanism of a height adjustment device for seats for a vehicle seat |
-
2004
- 2004-10-14 DE DE102004049994A patent/DE102004049994B3/de not_active Revoked
-
2005
- 2005-09-24 WO PCT/EP2005/010352 patent/WO2006042616A2/de active Application Filing
- 2005-09-24 KR KR1020077007200A patent/KR20070063522A/ko not_active Application Discontinuation
- 2005-09-24 EP EP05786045A patent/EP1799498A2/de not_active Withdrawn
- 2005-09-24 JP JP2007536027A patent/JP2008516826A/ja not_active Withdrawn
- 2005-09-24 CN CN200580035084A patent/CN100584655C/zh not_active Expired - Fee Related
-
2007
- 2007-04-13 US US11/786,975 patent/US7467827B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2006042616A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2006042616A3 (de) | 2007-04-19 |
WO2006042616A2 (de) | 2006-04-27 |
US7467827B2 (en) | 2008-12-23 |
US20070205647A1 (en) | 2007-09-06 |
JP2008516826A (ja) | 2008-05-22 |
DE102004049994B3 (de) | 2006-03-16 |
KR20070063522A (ko) | 2007-06-19 |
CN100584655C (zh) | 2010-01-27 |
CN101076464A (zh) | 2007-11-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20070307 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK YU |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB PL |
|
17Q | First examination report despatched |
Effective date: 20080306 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: F16H 13/08 20060101ALI20091205BHEP Ipc: B60N 2/225 20060101AFI20091205BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20100430 |