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WO2017182080A1 - Entraînement à arbre rotatif - Google Patents

Entraînement à arbre rotatif Download PDF

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Publication number
WO2017182080A1
WO2017182080A1 PCT/EP2016/058871 EP2016058871W WO2017182080A1 WO 2017182080 A1 WO2017182080 A1 WO 2017182080A1 EP 2016058871 W EP2016058871 W EP 2016058871W WO 2017182080 A1 WO2017182080 A1 WO 2017182080A1
Authority
WO
WIPO (PCT)
Prior art keywords
spindle
drive
tube
nut
along
Prior art date
Application number
PCT/EP2016/058871
Other languages
English (en)
Inventor
Seong-Jun Hong
Sangyong JEONG
Back-soo KIM
Original Assignee
Brose Fahrzeugteile Gmbh & Co. Kg, Bamberg
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.)
Filing date
Publication date
Application filed by Brose Fahrzeugteile Gmbh & Co. Kg, Bamberg filed Critical Brose Fahrzeugteile Gmbh & Co. Kg, Bamberg
Priority to PCT/EP2016/058871 priority Critical patent/WO2017182080A1/fr
Publication of WO2017182080A1 publication Critical patent/WO2017182080A1/fr

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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E05F15/622—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using screw-and-nut mechanisms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/696—Screw mechanisms
    • E05Y2201/702—Spindles; Worms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/546—Tailboards, tailgates or sideboards opening upwards
    • 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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2075—Coaxial drive motors

Definitions

  • the present invention is directed to a spindle drive for an adjustment element of a motor vehicle according to the general part of claim 1 and to a hatch arrange- ment of a motor vehicle according to the general part of claim 15.
  • spindle drives has become popular in recent years especially for the motorized movement of adjustment elements such as hatches, in particular of liftgates and deck lids.
  • a very compact design is desirable in order to keep the packaging space requirements low.
  • the known spindle drive (WO 2014/079593 Al), which is the starting point of the invention, comprises a drive motor arrangement and a spindle gear with the components spindle and spindle nut. While the spindle with its outer thread is of small longitudinal extension along the drive axis, the spindle nut is of large longitudinal extension along the drive axis.
  • the longitudinal extension of the spindle nut basically defines the area of movement between a retracted state and an extended state of the spindle drive. In the fully retracted state the tubular spindle nut with its inner thread overlaps the main portion of the drive motor arrange- ment, which serves to drive the spindle of the spindle gear.
  • the invention is based on the general idea that the drive spindle is designed as a hollow spindle tube, which at its outer surface comprises the outer thread.
  • the hollow interior of the drive spindle may well be used to receive various components of the spindle drive, which generally may increase the overall compactness of the spindle drive.
  • a new structural design of the spindle drive is possible, particularly allowing that the inner thread of the spindle nut is relatively short, while the outer thread of the drive spindle is relatively large, each with respect to the drive axis. Accordingly, the respective threads are relatively easy to manufacture.
  • the hollow interior of the spindle tube is used for receiving at least part of the drive motor arrangement.
  • the longitudinal extension of the outer thread of the drive spindle defines the longitudinal extension of the drive movement of the drive connectors between the retracted state and the extended state.
  • Claims 5 and 6 are directed to preferred embodiments, which provide a hollow spindle nut tube, which at one end comprises the spindle nut (claim 5) and which at the other end is coupled to the second drive connector (claim 6).
  • An easy to realize construction may be achieved by the preferred embodiment according to claim 9, which includes a carrier arrangement for the drive motor arrangement, which carrier arrangement in as especially preferred embodiment comprises a hollow carrier tube.
  • the carrier tube, the drive spindle tube and the spindle nut tube may be telescopically nested within one another which as a result leads to a high degree of radial compactness with respect to the drive axis.
  • a second teaching according to claim 15 is directed to a hatch arrangement of a motor vehicle, which hatch arrangement comprises a moveable hatch and a spindle drive according to the first teaching. All explanations given regarding the first teaching are fully applicable to this second teaching.
  • Fig. 1 the back section of a motor vehicle with a proposed hatch arrangement, which comprises a proposed spindle drive,
  • Fig. 3 the spindle drive according to Fig. 2 in the extended state
  • Fig. 4 the spindle tube and the spindle nut tube in a disassembled state.
  • the spindle drive 1 shown in the drawings serves for motorized adjustment of an adjustment element of a motor vehicle.
  • the adjustment element is the hatch 2, in particular a liftgate, of a motor vehicle.
  • the adjustment element may be a deck lid, a side door, a back door, an engine hood or the like.
  • the spindle drive 1 comprises a drive motor arrangement 3.
  • the drive motor arrangement 3 comprises an electric motor 4, which may be controlled by an electric hatch control, which is not shown in the drawings.
  • the electric motor 4 drives a spindle gear 5, which serves to generate linear drive movements.
  • an intermediate gear 4a is provided between the electric motor 4 and the spindle gear 5, prefera- bly.
  • the intermediate gear 4a may be a planetary gear or the like.
  • the proposed spindle drive 1 also comprises a first drive connector 6 and a sec- ond drive connector 7 for the output of the linear drive movements, which linear drive movements are aligned along a geometrical drive axis 8.
  • the first drive connector 6 is coupled to the body of the motor vehicle, while the second drive connector 7 is coupled to the hatch 2.
  • the spindle gear 5 comprises a rotating drive spindle 9 with an outer thread 10, which outer thread 10 is displayed in Fig. 4.
  • the spindle gear 5 also comprises a non-rotating spindle nut 1 1 with an inner thread 12, which inner thread 12 may be taken from Fig. 4 as well.
  • the spindle drive 1 may be adjusted with respect to the drive connectors 6, 7 between a retracted state (Fig. 2) and an extended state (Fig. 3).
  • the expression "with respect to the drive connectors 6, 7" means that the linear drive movements take place between the drive connectors 6, 7.
  • the linear drive movements are relative drive movements between the drive connectors 6, 7.
  • the drive connectors 6, 7, here and preferably, are arranged on the drive axis 8.
  • the overall structure of the proposed spindle drive 1 is such that the drive connectors 6, 7 define the longitudinal extension of the spindle drive 1 along the drive axis 8. With this overall structure the integration of the spindle drive 1 is simple in most cases.
  • the drive spindle 9 comprises a hollow spindle tube 13, which at its outer surface comprises the outer thread 10. This is shown, for example, in Fig. 4.
  • Fig. 2 and 3 show, that the drive motor arrangement 3 is at least partly arranged in the hollow interior 14 of the spindle tube 13. In the shown embodiment the drive motor arrangement 3 is even fully arranged in the hollow interior 14 of the spindle tube 13.
  • the drawings taken together show that with this overall structure the drive motor arrangement 3 does not require any more packaging space than is provided by the spindle tube 13. This leads to a considerable degree of compactness.
  • the outer thread 10 of the drive spindle 9 is preferably provided along at least a main portion of the longitudinal extension 15 of the spindle tube 13 along the drive axis 8.
  • the longitudinal extension 16 of the outer thread 10 pref- erably is at least the longitudinal extension 17 of the drive movement of the drive connectors 6, 7 between the retracted state and the extended state. This means that, as shown in the drawings, the longitudinal extension 17 of the drive movement of the drive connectors 6, 7 is defined and possibly even restricted by the longitudinal extension 16 of the outer thread 10.
  • the longitudinal extension 18 of the inner thread 12 is relatively small with respect to the longitudinal extension 16 of the outer thread 10. As shown in the drawings, the longitudinal extension 18 of the inner thread 12 is smaller than 0,5 times the longitudinal extension 16 of the outer thread 10, further preferably, the longitudinal extension 18 of the inner thread 12 is smaller than 0,25 times the longitudinal extension 16 of the outer thread 10.
  • the longitudinal extension 8 of the inner thread 12 is in the magnitude of the diameter of the inner thread 12. Further preferably, the longitudinal extension 18 of the inner thread 12 is smaller than the diameter of the inner thread 12.
  • FIG. 4 An interesting realization of the spindle nut 11 is shown in Fig. 4.
  • the spin- die nut 1 1 together with a tubular section 19 extending from the spindle nut 1 1 along the drive axis 8 add up to a hollow spindle nut tube 20, which is arranged concentrically with respect to the spindle tube 13.
  • the spindle nut 11 is arranged at one end of the spindle nut tube 20
  • the second drive connector 7 is coupled to the end of the spindle nut tube 20, which is opposite to the end, at which the spindle nut 1 1 is arranged.
  • This coupling here and preferably is a rigid coupling.
  • the spindle nut tube 20 makes is possible to arrange the drive connectors 6, 7 on the drive axis 8 as shown in Fig. 2 and 3.
  • the spindle nut 1 1 and the tubular section 19 may be combined in a one piece component adding up to the spindle nut tube 20. However, those two components may be connected to each other in a form fit manner and/or a force fit manner and/or a bonded manner.
  • the spindle nut 11 is at the end of the spindle tube 13, which is facing the second drive connector 7. With the spindle nut 1 1 traveling between both ends of the spindle tube 13, a maximum longitudinal extension of the drive movement between the drive connectors 6, 7 is possible.
  • a carrier arrangement 21 which carries the drive motor arrangement 3 and which is coupled to the first drive connector 6.
  • This coupling here and preferably is a rigid coupling.
  • the carrier arrangement 21 preferably comprises a hollow carrier tube 22, which receives at least part of the drive motor arrangement 3.
  • the carrier tube 22 receives the complete drive motor arrangement 3, as shown in the drawings.
  • the carrier tube 22 is aligned to the drive axis 8, just as the spindle tube 13 and the spindle nut tube 20.
  • the drive motor arrangement 3 comprises an output shaft 23, which is aligned to the drive axis 8. As shown in Fig. 2 and 3, the output shaft 23 is located at a side of the drive motor arrangement 3, which is facing away from the first connector 6.
  • the carrier tube 22 preferably comprises an opening 24, wherein the output shaft 23 is reaching through the opening 24 of the carrier tube 22.
  • the output shaft 23 is coupled to the spindle tube 13 in order to drive the spindle 9 for retracting and extending the spindle drive 1 as noted above.
  • This coupling here and preferably is a rigid coupling.
  • the carrier tube 22 also carries a rotational bearing 25 for the output shaft 23 of the drive motor arrangement 3.
  • the bearing 25 is preferably arranged in the hollow interior 26 of the carrier tube 22.
  • the carrier tube 22 pro- vides a longitudinal guide for the spindle tube 13 along the drive axis 8.
  • the spindle tube 13 and the carrier tube 22 largely overlap each other along the drive axis 8, again leading to a high degree of compactness.
  • the spindle tube 13, the spindle nut tube 20 and the carrier tube 22 largely overlap each other along the drive axis 8.
  • the spindle drive 1 comprises a housing 27, which receives at least the drive motor arrangement 3.
  • the housing 27 here and prefer- ably also receives the carrier arrangement 21 and the drive spindle 9 of the spindle gear 5.
  • the housing 27 In the fully retracted state of the spindle drive 1 (Fig. 2) the housing 27 also receives the main portion of the spindle nut tube 20.
  • the housing 27 provides a longitudinal guide for the spindle nut tube 20, which again has a guiding effect on the spindle tube 13.
  • the spindle drive 1 com- prises a spring arrangement, which produces a preload force between the drive connectors 6, 7. This may be a force, which urges the spindle drive 1 into the ex- tended state, or which urges the spindle drive 1 into the retracted state. It is well preferred that the spindle arrangement is located within the housing 27.
  • the spindle tube 13 and/or the spindle nut tube 20 and/or the carrier tube 22 is/are of basically circular design in cross sectional view, as may be taken from Fig. 4.
  • Fig. 4 also shows, that the cross sectional design of the spindle tube 13 deviates from an exact circular design only insofar, that the spindle tube 13 comprises two flat portions 28, that are each extending along the full longitudinal extension of the spindle tube 13 and that are arranged on opposite sides of the spindle tube 13, again seen in cross sectional view.
  • Those flat portions 28 simplify the demoulding process, in case the spindle tube 13 is being produced by plastic injection moulding.
  • the spindle tube 13 and/or the spindle nut 1 1 and/or the spindle nut tube 20 and/or the housing 27 is/are made from plastic material.
  • the spindle tube 13 and/or the spindle nut 11 and/or the spindle nut tube 20 and/or the housing 27 is/are being produced by plastic injection moulding.
  • the tubular section 19 is made from plastic mate- rial, preferably by plastic injection moulding, whereas the spindle nut 1 1 is made from a different material such as metal.
  • the spindle nut 1 1 is connected to the tubular section 19 in a form fit manner and/or a force fit manner and/or a bonded manner as noted above. It may be summed up that the proposed solution is preferably applied for a hatch 2 of a motor vehicle. However, other applications are possible as indicated above.
  • the proposed spindle drive 1 may be used as a drive of a seatbelt presenter or the like.
  • the hatch arrangement of a motor vehicle with a movable hatch 2 and a proposed spindle drive 1 for motorized movement of the hatch 2 is claimed as such. All explanations given for the proposed spindle drive 1 are fully applicable for the proposed hatch arrangement.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

L'invention concerne un entraînement à arbre rotatif pour un élément de réglage (2) d'un véhicule à moteur, lequel entraînement comprend un ensemble de moteur d'entraînement (3), un engrenage d'arbre rotatif (5), un premier raccord d'entraînement (6) et un second raccord d'entraînement (7) pour la délivrance en sortie de mouvements d'entraînement linéaires le long d'un axe d'entraînement géométrique (8), l'engrenage d'arbre rotatif (5) comprenant un arbre d'entraînement d'arbre rotatif (9) avec un filetage externe (10) et un écrou non rotatif d'arbre rotatif (11) avec un filetage interne (12), le filetage externe (10) de l'arbre rotatif d'entraînement (9) s'engrenant avec le filetage interne (12) de l'écrou d'arbre rotatif (11), et dans lequel, par la rotation de l'arbre rotatif d'entraînement (9) avec l'agencement de moteur d'entraînement (3), l'entraînement à arbre rotatif (1) peut être réglé par rapport aux raccords d'entraînement (6, 7) entre un état rétracté et un état étendu. Il est proposé que l'arbre rotatif d'entraînement (9) comprenne un tube d'arbre rotatif creux (13), qui, à sa surface externe, comprend le filetage externe (10).
PCT/EP2016/058871 2016-04-21 2016-04-21 Entraînement à arbre rotatif WO2017182080A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2016/058871 WO2017182080A1 (fr) 2016-04-21 2016-04-21 Entraînement à arbre rotatif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2016/058871 WO2017182080A1 (fr) 2016-04-21 2016-04-21 Entraînement à arbre rotatif

Publications (1)

Publication Number Publication Date
WO2017182080A1 true WO2017182080A1 (fr) 2017-10-26

Family

ID=55806342

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/058871 WO2017182080A1 (fr) 2016-04-21 2016-04-21 Entraînement à arbre rotatif

Country Status (1)

Country Link
WO (1) WO2017182080A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20108882U1 (de) * 2001-05-28 2002-10-10 Flamme, Klaus Peter, Dipl.-Ing., 86916 Kaufering Doppelspindelmotor
EP1538066A1 (fr) * 2003-12-02 2005-06-08 Renault Actionneur pour essieu de véhicule automobile comprenant un moteur électrique à rotor extérieur et essieu de véhicule automobile commandé par un tel actionneur
US20060266146A1 (en) * 2005-05-31 2006-11-30 Waide William M Direct drive electromechanical linear actuators
DE102010041233A1 (de) * 2010-09-23 2012-03-29 Hanning Elektro-Werke Gmbh & Co. Kg Linearer Verstellantrieb
WO2014079593A1 (fr) 2012-07-18 2014-05-30 Brose Fahrzeugteile Gmbh & Co. Kg, Hallstadt Entraînement à broche

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20108882U1 (de) * 2001-05-28 2002-10-10 Flamme, Klaus Peter, Dipl.-Ing., 86916 Kaufering Doppelspindelmotor
EP1538066A1 (fr) * 2003-12-02 2005-06-08 Renault Actionneur pour essieu de véhicule automobile comprenant un moteur électrique à rotor extérieur et essieu de véhicule automobile commandé par un tel actionneur
US20060266146A1 (en) * 2005-05-31 2006-11-30 Waide William M Direct drive electromechanical linear actuators
DE102010041233A1 (de) * 2010-09-23 2012-03-29 Hanning Elektro-Werke Gmbh & Co. Kg Linearer Verstellantrieb
WO2014079593A1 (fr) 2012-07-18 2014-05-30 Brose Fahrzeugteile Gmbh & Co. Kg, Hallstadt Entraînement à broche

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