Windshield wiper module

Abstract

A wiper module assembly for a vehicle liftgate having an inner panel with a spoiler formed as a one-piece part of the inner panel. An outer panel of the liftgate is connected to the inner panel to form an exterior surface of the liftgate. A cavity is formed in part of the spoiler and receives a carrier forming a removable module connected to the cavity of the vehicle liftgate. The carrier includes a wiper, motor and drive assembly for operating a wiper for a window on the liftgate.

Claims

1. A wiper module assembly for a vehicle liftgate comprising: a vehicle liftgate; a spoiler attached to the vehicle liftgate, wherein the spoiler has surface contours; a cavity formed as part of said spoiler; a carrier defining a removable module for connection to the cavity, wherein the carrier is shaped to match the surface contours of the spoiler and the carrier is removable from the cavity; a motor connected to said carrier and having a drive assembly driven by the motor; a spindle rotatably extending from and driven by the drive assembly; a wiper connected to the spindle and configured to move between a retracted position and an extended position; a recess formed in the carrier, said recess having a lock aperture and a connector; and a center high mount stop lamp that connects to the recess of the carrier and has a tab configured to slide into and connect the center high mount stop lamp to the lock aperture of the carrier and a plug configured to slide into the connector and electrically connect the center high mount stop lamp to the carrier.

2. The wiper module assembly for a vehicle liftgate of claim 1 wherein said carrier is a one-piece component.

3. The wiper module assembly for a vehicle liftgate of claim 1 wherein said carrier is at least partially hidden from view by said liftgate when said carrier is located in said cavity.

4. The wiper module assembly for a vehicle liftgate of claim 1, wherein said cavity further comprises a wiper socket and said motor has a wiper plug for connecting to said wiper socket in order to provide power to said motor.

5. The wiper module assembly for a vehicle liftgate of claim 1, said liftgate further comprising an inner panel connected to said spoiler and an outer panel connected to said inner panel.

6. A wiper module assembly for a vehicle liftgate comprising: a vehicle liftgate; a spoiler attached to the vehicle liftgate, wherein the spoiler has surface contours; a cavity formed as part of one of one selected from group comprising a liftgate or spoiler; a carrier defining a removable module for connection to the cavity, wherein the carrier is at least partially hidden from view by the liftgate or the spoiler when the carrier is located in the cavity and the carrier is shaped to match the surface contours of the spoiler and the carrier is removable from the cavity; a motor connected to said carrier and having a drive assembly driven by the motor; a spindle rotatably extending from and driven by the drive assembly; a wiper connected to the spindle and configured to move between a retracted position and an extended position; a recess formed in the carrier, said recess having a lock aperture and a connector; and a center high mount stop lamp that connects to the recess of the carrier and has a tab configured to slide into and connect the center high mount stop lamp to the lock aperture of the carrier and a plug configured to slide into the connector and electrically connect the center high mount stop lamp to the carrier.

7. The wiper module assembly for a vehicle liftgate of claim 6 wherein said carrier is a one-piece component.

8. The wiper module assembly for a vehicle liftgate of claim 6 further comprising: an inner panel of said liftgate and an outer panel of said liftgate, wherein said outer panel is connected to said inner panel.

9. The wiper module assembly for a vehicle liftgate of claim 6 wherein said cavity further comprises a wiper socket and said motor has a wiper plug for connecting to said wiper socket in order to provide power to said motor, when said carrier is positioned in said cavity.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present invention will become more fully understood from the detailed description and the accompanying drawings, wherein:

(2) FIG. 1 is an exploded perspective view of a prior art lift gate;

(3) FIG. 2 is an exploded perspective view of a lift gate in accordance with one aspect of the present invention;

(4) FIG. 3 is a perspective view of the inner panel of a lift gate in accordance with the present invention;

(5) FIG. 4 is a rear plan view of a lift gate having a wiper module assembly attached to a spoiler in accordance with the present invention;

(6) FIG. 5 is an angled rear plan view of a liftgate having a wiper module assembly attached to a spoiler, according to the present invention;

(7) FIG. 6 an enlarged angled rear plan view of a liftgate having a wiper module assembly attached to a spoiler, according to the present invention;

(8) FIG. 7 a greatly enlarged angled rear plan view of a liftgate having a wiper module assembly attached to a spoiler, according to the present invention;

(9) FIG. 8 is a second greatly enlarged angled plan view of a liftgate having a wiper module assembly attached to a spoiler, according to the present invention;

(10) FIG. 9 is an enlarged side perspective view of a liftgate having a wiper module assembly attached to a spoiler, according to the present invention;

(11) FIG. 10 a greatly enlarged side perspective view of a liftgate having a wiper module assembly attached to a spoiler, according to the present invention;

(12) FIG. 11 is an enlarged perspective angled view of the lift gate with the wiper module assembly attached to the spoiler, according to the present invention;

(13) FIG. 12 is a side perspective view of the wiper module assembly;

(14) FIG. 13 is a side plan view of the wiper module assembly;

(15) FIG. 14 is an enlarged exploded side plan view of the lift gate assembly having the wiper module assembly removed from the spoiler; and

(16) FIG. 15 is an enlarged side perspective view of the lift gate having the wiper module assembly removed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(17) The following description of the preferred embodiment(s) is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.

(18) Referring to FIGS. 2-11 and 14-15, generally, a liftgate assembly 10 is generally shown. The liftgate assembly 10 in accordance with the present embodiment of the invention provides a wiper module assembly 14 connected to a spoiler 11, which is part of a liftgate 16 of the liftgate assembly 10 for a vehicle. The wiper module assembly 14 has a wiper 24 that operates to wipe a rear window 26 that is part of the liftgate assembly 10.

(19) The details of the wiper module assembly 14 are shown in FIGS. 12 and 13. The wiper module assembly 14 has a one-piece carrier 28 that is used as a mounting surface and is shaped to aesthetically fit into a cavity 12 of the spoiler 11 when connected to the liftgate 16. A wiper motor 18 is mounted to the carrier 28 and also has a drive assembly 20 that is connected to the motor 18. The drive assembly 20 can be a gear or gear train and the drive assembly 20 can be one piece with the wiper motor 18 or can be a separate component connected to the wiper motor 18. A spindle 22 for the wiper extends from the drive assembly 20 and connects to the wiper 24. When the wiper motor 18 is operated, the spindle 22 rotates between two or more positions so that the wiper 24 moves between a retracted position and extended position to wipe the rear window 26.

(20) The spoiler 11 has the cavity 12 formed therein for receiving the wiper module assembly 14. The wiper module assembly 14 can be connected to the cavity 12 using fasteners, snap fits, adhesives, welding, or other suitable means. The cavity 12 has a wiper socket 44 that is configured to receive a wiper plug 42, which extends from the wiper motor 18. The wiper plug 42 and wiper socket 44 provide electrical power from the vehicle to the wiper motor 18. While the present embodiment of the invention describes a wiper plug and wiper socket, it is within the scope of this invention for the two components to be reversed or for some other suitable electrical connection to be made between the motor and the vehicle.

(21) When the wiper module assembly 14 is positioned within the cavity 12, the carrier 28 of the wiper module assembly 14 is shaped to match the contours of the spoiler 11. It is within the scope of this invention for the cavity 12 to be in a different area and not necessarily within the spoiler 11, for example, the cavity can be formed in the liftgate panels. In other embodiments, the carrier 28 would have a different shape to match whatever shape is necessary in order to meet aesthetic design. In accordance with the present embodiment of the invention, the carrier 28 defines a removable module for connection to the cavity 12, wherein the carrier 28 is at least partially hidden from view by the liftgate 16 or the spoiler 11.

(22) It is also within the scope of this invention for the wiper module assembly 14 to include other components. For example, one alternative embodiment of the invention includes a fluid pump 50 mounted to the carrier 28. The fluid pump 50 pump washer fluid that is sprayed either from the carrier 28 or the wiper 24 onto the rear window 26 of the liftgate 16.

(23) Another aspect of the invention involves reducing the number of components and improving the design of the liftgate. In FIGS. 2-15 the liftgate 16 can be formed of metal or lightweight polymeric materials. In particular, the liftgate 16 has an inner panel 15 and an outer panel 17. The outer panel 17 is what is seen when the vehicle is viewed from the exterior. The inner panel 15 forms a frame from which the outer panel 17, rear window 26 and other components are attached. One aspect of the present invention has a molded inner panel 15 that is one piece with the spoiler 11 formed thereon. The prior art requires that the spoiler 112 be attached or welded between the inner panel 102 and outer panel 104. By providing a single piece molded spoiler 11 and inner panel 15, the number of components is reduced as well as possible problems that can occur due to water, snow or ice getting in between the inner panel 102 and the spoiler 112, which can damage the wiper module assembly 109.

(24) The liftgate 16 in the present invention also includes a number of support brackets 46 positioned between the outer panel 17 and inner panel 15 which strengthen the liftgate 16. It is also within the scope of the invention for the outer panel 17 to be formed of a molded polymeric material, which reduces the overall weight of the liftgate 16, which have traditionally been formed of metal sheets and can be very heavy and cumbersome to move. The inner panel 15 also has attached an interior applique 48 which completes the interior surface of the liftgate 16.

(25) In another embodiment of the invention, the wiper module assembly 14 includes a center high mount stop lamp (CHMSL) 32 that connects to a recess 30 formed on the carrier 28 of the wiper module assembly 14. The recess 30 has a lock aperture 34 that is configured to receive a tab 36 extending from the CHMSL 32. The lock aperture 34 and tab 36 function to provide a snap fit or locking tab arrangement for the CHMSL 32 into the recess 30 of the wiper module assembly 14. While a lock tab arrangement is described, it is within the scope of this invention for a different type of connection to be utilized, such as fasteners, adhesives or welding. In order to provide power to the CHMSL 32, a connector 38 is formed in the recess 30 and aligns with and receives a plug 40 extending from the CHMSL 32.

(26) The design of the wiper module assembly 14 provides a removable or serviceable module that eliminates the need for disassembling the entire spoiler 11 from the liftgate 16. Additionally, the present invention reduces the number of components by providing a spoiler 11 that is formed of a one piece component with the inner panel 15. Additionally, the wiper module assembly 14, in alternative embodiments of the invention can include components in addition to the wiper 24 itself. For example, alternate embodiments of the wiper module assembly 14 include a fluid pump 50 for spraying fluid onto the rear window 26 and/or a CHMSL 32 unit that connects directly to the wiper module assembly 14, thus eliminating the need to have the CHMSL connected to a different part of the vehicle that would require more difficult disassembly in order to service the CHMSL.

(27) The description of the invention is merely exemplary in nature and, thus, variations that do not depart from the gist of the invention are intended to be within the scope of the invention. Such variations are not to be regarded as a departure from the spirit and scope of the invention.