GB2509606A - A window lifter for a vehicle window - Google Patents

A window lifter for a vehicle window Download PDF

Info

Publication number
GB2509606A
GB2509606A GB1321562.9A GB201321562A GB2509606A GB 2509606 A GB2509606 A GB 2509606A GB 201321562 A GB201321562 A GB 201321562A GB 2509606 A GB2509606 A GB 2509606A
Authority
GB
United Kingdom
Prior art keywords
window
nut
lead screw
relation
lifter
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Withdrawn
Application number
GB1321562.9A
Other versions
GB201321562D0 (en
Inventor
Shashank Vasudevan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
Daimler AG
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 Daimler AG filed Critical Daimler AG
Priority to GB1321562.9A priority Critical patent/GB2509606A/en
Publication of GB201321562D0 publication Critical patent/GB201321562D0/en
Publication of GB2509606A publication Critical patent/GB2509606A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/38—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement
    • E05F11/40—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by screw mechanism
    • E05F11/405—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by screw mechanism for vehicle windows
    • 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
    • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/38—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement
    • E05F11/382—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement for vehicle windows
    • E05F11/385—Fixing of window glass to the carrier of the operating mechanism
    • 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
    • E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
    • E05F15/689—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings specially adapted for vehicle windows
    • 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
    • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/38—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement
    • E05F11/52—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement combined with means for producing an additional movement, e.g. a horizontal or a rotary movement
    • E05F11/525—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement combined with means for producing an additional movement, e.g. a horizontal or a rotary movement for vehicle windows

Landscapes

  • Window Of Vehicle (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

A window lifter 24, for lifting a vehicle window, has an axially driven threaded nut 30 mounted about a motor 32 driven rotatable lead screw 26. A window pane mounting bracket 42 is movably mounted on the nut. Preferably the nut comprising a protrusion 44 cooperating with a slot 46 in the mounting element to provide the mounting bracket 42 with pivot and translation such that the window pane can tilt and translate during opening and closing of the window as it is guided in a curved path. The motor may be coaxially mounted with the lead screw.

Description

Window Lifter for a Vehicle The invention relates to a window lifter for lifting a window of a vehicle according to the preamble of patent claim 1.
Such a window lifter for lifting a window of a vehicle is already known from DE 10 2008 004 996 Al. The window lifter comprises a lead screw having a first thread and a nut having a second thread. The nut is screwed onto the lead screw via the threads. Moreover, the window lifter comprises a motor, for example, an electric motor for driving the lead screw in relation to the nut about a rotation axis. By driving the lead screw about the rotation axis in relation to the nut, the nut is translationally moved in relation to and along the lead screw since the rotational movement of the lead screw is converted into a translational movement of the nut by the threads. In DE 10 2008 004 996 Al the lead screw is arranged along a guide rail, wherein the nut is moved along the guide rail if the lead screw us rotated in relation to the nut.
It is an object of the present invention to provide a window lifter having a particularly small number of parts.
This object is solved by a window lifter having the features of patent claim 1.
Advantageous embodiments with expedient and non-trivial developments of the invention are indicated in the other patent claims.
In order to provide a window lifter of the kind indicated in the preamble of patent claim 1, the window lifter having a particularly small number of parts, according to the present invention the window lifter comprises at least one mounting element via which the window to be lifted by the window lifter is mountable on the nut. This means the mounting clement is configured to be connected to the window. The mounting element is movably arranged on the nut. For example, the mounting element can be pivoted about at least one pivot axis in relation to the nut. Additionally or alternatively, the mounting element can be translationally moved in relation to the nut. Thus, the window mounted on the nut via the mounting element can be moved in relation to the nut. Hence, the window can have a curvature and/or can be guided along a curved trajectory while the lead screw is straight.
The nut and the mounting element form a mechanism which allows the window to follow a curved profile of, for example, a window opening. Moreover, a guide, for example, a guide rail for guiding the nut and/or the mounting element is not necessary.
For example, at least one guide rail for guiding the window is provided, wherein said mechanism allows for a movement of the window in relation to the nut since the mounting element can be moved in relation to the nut, the movement of the window in relation to the nut being effected by said guide rail for guiding the window. Thereby, the number of parts of the window lifter can be reduced in comparison with conventional window lifters.
Furthermore, a particularly simple design as well as an easy and cost-efficient manufacturing of the window lifter according to the present invention can be realized.
In an advantageous embodiment of the invention the motor comprises a rotor connected to the lead screw, the rotor being arranged coaxially in relation to the lead screw. Thus, the rotor can be connected directly to the lead screw. This means that only rigid connecting elements and no flexible or pliable connecting elements such as belts, chains or cables are used to connect the rotor to the lead screw. Thereby, a very high efficiency of the window lifter can be realized since forces and torques to move the lead screw can be transferred form the motor to the lead screw very efficiently.
By avoiding flexible connecting elements such as belts, chains or cables, the risk of random fall of glass due to breaking of a flexible connecting element such as a cable can be avoided. Moreover, the installation space needed by the window lifter according to the present invention can be kept particularly low. Additionally, the window lifter according to the present invention can be repaired in a particularly inexpensive and easy way.
Further advantages, features and details of the invention derive from the following description of a preferred embodiment as well as from the drawings. The drawings show in: Fig. 1 a schematic side view of a side door for a passenger vehicle, the side door being equipped with a window lifter for lifting a window, wherein the window lifter comprises a lead screw, a nut screwed onto the lead screw and a motor for driving the lead screw in relation to the nut, and wherein the window lifter further comprises at least one mounting element via which the window to be lifted by the window lifter is mountable on the nut, the mounting element being movably arranged on the nut; Fig. 2 a schematic perspective view of the lead screw, the nut and the mounting element; Fig. 3a partially a schematic side view of the side door, wherein the window is positioned in a first position; Fig. 3b a schematic sectional view of the side door according to Fig. 3a; Fig. 4a partially a schematic side view of the side door, the window being positioned in a second position; Fig. 4b a schematic sectional view of the side door according to Fig. 4a; Fig. 5a partially a schematic side view of the side door, the window being positioned in a third position; and Fig. Sb a schematic sectional view of the side door according to Fig. Sa.
Fig. 1 shows a door in the form of a side door 10 for a passenger vehicle. The side door 10 comprises a door shell element 12 and a door module 14 mounted on the door shell element 12. The side door 10 has a window opening 16 bounded by a window frame 18 of the side door 10. Moreover, the side door 10 comprises a window 20 which is made of, for example, glass. The window 20 is movable between a closed position in which the window opening 16 is covered and at least one open position in which at least a portion of the window opening 16 is uncovered. The window 20 can be moved in relation to the door shell element 12 in the vertical direction of the vehicle. The window frame 18 has lateral guide rails 22 for guiding the window 20 when the window 20 is moved in the vertical direction of the vehicle.
Moreover, the side door 10 comprises a window lifter 24 for lifting the window 20 in the vertical direction of the vehicle. Thus, a manual actuation of the window 20 can be avoided so that the window 20 can be moved very comfortably.
The window lifter 24 comprises a lead screw 26 which is directly mounted on the side door 10, in particular the door module 14. As can be seen from Fig. 1, the lead screw 26 is straight and extends at least substantially in the vertical direction of the direction of the vehicle. As can be seen from Fig. 2, the lead screw 26 comprises a first thread in the form of a male screw 28.
The window lifter 24 further comprises a nut 30 which is also referred to as a "cursor".
The nut 30 has a second thread in the form of a female thread. The nut 30 is screwed onto the lead screw 26 via said threads. Furthermore, the window lifter 24 comprises a motor 32 which is designed as an electric motor. The motor 32 serves for driving the lead screw 26 in relation to the nut 30 about a rotation axis. The motor 32 has a rotor which is rotatable about the rotation axis. The rotor is coaxially arranged in relation to the lead screw 26 and connected to the lead screw 26 by means of a shaft coupling element 34.
For example, the motor 32 is mounted on the door module 14 by means of a washer 36 and a bracket 38. For example, the bracket 38 is mounted on the door module 14 by means of screws. Alternatively or additionally, the bracket 38 mounted on the door module 14 can also serve for rotatably mounting the lead screw 26 on the door module 14 on one side. On the other side, the lead screw 26 is rotatably mounted on the door module 14 by means of a bracket 40 attached to the door module 14. For example, the lead screw 26 is rotatably mounted on the brackets 38 and 40 by means of bearings, in particular roller bearings.
If the lead screw 26 is rotated in relation to the nut 30 by means of the motor 32, the rotational movement of the lead screw 26 is transformed into a translational movement of the nut 30 by means of the threads. This means the nut 30 can be translationally moved in relation to and along the lead screw 26 by rotating the lead screw 26 in relation to the nut 30. Thereby, the nut 30 can be moved up and down in the vertical direction of the vehicle in relation to the door module 14.
Furthermore, the window lifter 24 comprises a mounting element 42 which is also referred to as a "glass holder" since the mounting element 42 is configured to be connected to the window 20. This means the window 20 can be mounted on the mounting element 42. As can be seen from Figs. 2 and 3a to 5b, the mounting element 42 is movably arranged on the nut 30. The nut 30 has a protrusion 44 which engages a corresponding receptacle 46 of the mounting element 42. The protrusion 44 and the corresponding receptacle 46 allow a movement of the mounting element 42 in relation to the nut 30. Thus, the window 20 mounted on the mounting element 42 by, for example, fastening elements can be moved in relation to the nut 30. For example, the mounting element 42 can be pivoted and/or translationally moved in relation to the nut 30. For example, the mounting element 42 can be translationally moved in relation to the nut 30 in the transverse direction of the vehicle.
The window lifter 24 is configured as a direct drive. This derives from the fact that the rotor of the motor 32 is coupled directly to the lead screw 26 through the shaft coupling element 34. Thereby, transfer losses can be kept particularly low when forces and/or torques are transferred from the motor 32 to the lead screw 26. Since there is no conversion of energy needed between the motor 32 and the lead screw 26, the window lifter 24 is highly efficient in comparison with conventional window lifters using flexible or pliable coupling elements such as chains, belts or cables.
Since the connection between the cursor (nut 30) and the glass holder (mounting element 42) is designed to permit linear as well as partial rotation movements of the mounting element 42 in relation to the nut 30, the window 20 can be moved along, for example, a curved trajectory by the lateral guide rails 22 when the window 20 is moved by the window lifter 24.
Figs. 3a and 3b show the window 20 being in its lowermost position. In order to raise the window 20, the lead screw 26 is rotated by the motor 32 in relation to the nut 30. As a result, the window 20 guided by the lateral guide rails 22 is raised. The pliable joint between the glass holder and the cursor enables the window 20 to traverse any profile of the guide rails 22. Figs. 4a and 4b show the window 20 the window 20 in an open position. As can be seen from a comparison of Fig. 4b with Fig. 3b, the lateral guide rails 22 effect a movement of the window 20 and, thus, the glass holder in relation the nut 30.
Figs. Sa and 5b show the window 20 being in its closed position. As can be seen from Figs. 3a to 5b, the lateral guide rails 22 effect a movement of the window 20 and, thus, the mounting element 42 in relation to the nut 30 while the window 20 is moved in the vertical direction of the vehicle.
In order to move the window 20 upwards, the lead screw 26 is rotated in a first direction of rotation by means of the motor 32. In order to lower the window 20, the lead screw 26 is rotated in a second direction of rotation by the motor 32, the second direction of rotation being opposite to the first direction of rotation. As can be seen from Figs. 1 to Sb, the window lifter 24 allows for moving the window 20 along a curved trajectory. Moreover, the number of parts and the complexity of the window lifter 24 can be kept particularly low, thereby realizing a very easy manufacturing and maintenance.
List of reference signs side door 12 door shell element 14 door module 16 window opening 16 window frame window 22 guide rail 24 window lifter 26 lead screw 28 male thread nut 32 motor 34 coppling element 36 wahser 38 bracket bracket 42 mounting element 44 protrusion 46 receptacle

Claims (4)

  1. Claims A window lifter (24) for lifting a window (20) of a vehicle, the window lifter (24) comprising: -a lead screw (26) having a first thread (28), -a nut (30) having a second thread, the nut (30) being screwed onto the lead screw (26) via the threads (28), and -a motor (32) for driving the lead screw (26) in relation to the nut (30) about a rotation axis, characterized in that the window lifter (24) comprises at least one mounting element (42) via which the window (20) to be lifted by the window lifter (24) is mountable on the nut (30), the mounting element (42) being movably arranged on the nut (30).
  2. 2. The window lifter (24) according to claim 1, characterized in that the mounting element (42) is pivotably arranged on the nut (30) about at least one pivot axis.
  3. 3. The window lifter (24) according to any one of claims 1 or 2, characterized in that the mounting element (42) is translationally movable in relation to the nut (30).
  4. 4. The window lifter (24) according to any one of the preceding claims, characterized in that, the motor (32) comprises a rotor connected to the lead screw (26), the rotor being arranged coaxially in relation to the lead screw (26).
GB1321562.9A 2013-12-06 2013-12-06 A window lifter for a vehicle window Withdrawn GB2509606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1321562.9A GB2509606A (en) 2013-12-06 2013-12-06 A window lifter for a vehicle window

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1321562.9A GB2509606A (en) 2013-12-06 2013-12-06 A window lifter for a vehicle window

Publications (2)

Publication Number Publication Date
GB201321562D0 GB201321562D0 (en) 2014-01-22
GB2509606A true GB2509606A (en) 2014-07-09

Family

ID=50000273

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1321562.9A Withdrawn GB2509606A (en) 2013-12-06 2013-12-06 A window lifter for a vehicle window

Country Status (1)

Country Link
GB (1) GB2509606A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110388162A (en) * 2019-07-31 2019-10-29 六安堰山自动化设备销售有限公司 A kind of automobile glass lifter
CN110541649A (en) * 2019-09-19 2019-12-06 烟台集纳智能科技有限公司 Automobile glass lifter mechanism
EP4325016A1 (en) * 2022-08-18 2024-02-21 Volvo Truck Corporation Window assembly, vehicle door and vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945691A (en) * 1956-05-14 1960-07-19 Harvey C Swift Window lift mechanism
US3014715A (en) * 1959-08-21 1961-12-26 Anderson Co Window regulator
US20040237409A1 (en) * 2003-03-07 2004-12-02 Andrea Napoli Window regulator for motor vehicles
US20110120019A1 (en) * 2003-12-05 2011-05-26 Magna Closures Inc. Vehicle Window Regulator Having a Floating Window Carrier

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2945691A (en) * 1956-05-14 1960-07-19 Harvey C Swift Window lift mechanism
US3014715A (en) * 1959-08-21 1961-12-26 Anderson Co Window regulator
US20040237409A1 (en) * 2003-03-07 2004-12-02 Andrea Napoli Window regulator for motor vehicles
US20110120019A1 (en) * 2003-12-05 2011-05-26 Magna Closures Inc. Vehicle Window Regulator Having a Floating Window Carrier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110388162A (en) * 2019-07-31 2019-10-29 六安堰山自动化设备销售有限公司 A kind of automobile glass lifter
CN110541649A (en) * 2019-09-19 2019-12-06 烟台集纳智能科技有限公司 Automobile glass lifter mechanism
EP4325016A1 (en) * 2022-08-18 2024-02-21 Volvo Truck Corporation Window assembly, vehicle door and vehicle

Also Published As

Publication number Publication date
GB201321562D0 (en) 2014-01-22

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)