Patent Application
20160355073
(NOT APPLICABLE)
(NOT APPLICABLE)
The invention relates to accessories for a laminated windshield and, more particularly, to an assembly for attaching a windshield wiper motor to a laminated windshield.
It is tedious, time-consuming and expensive to cut mounting holes in laminated glass. Also, when holes are cut, they are cut into pre-laminated glass pieces. During the lamination process, it is required to align the holes, which can be a difficult task. The inner vinyl between the laminated pieces has to then be trimmed out of each hole. Non-metallic bushings and/or other means of isolating the glass from the metallic motor mounting hardware is also required to reduce chances of glass fractures.
It would be desirable to replace the existing process for securing accessories to laminated glass.
A notch may be pre-cut into the glass during the manufacture of the laminated glass. The cuts are made in appropriate locations along the edge of the glass to accommodate the wiper motor location and any additional wiper pivot points where the wiper would drive a second blade via a linkage between the motor and the second location. This arrangement can be applied to any number of additional blade pivot points, depending on the application.
In an exemplary embodiment, a windshield assembly includes a laminated windshield including a cutout, a motor mounting plate secured to the laminated windshield over the cutout, wherein the motor mounting plate includes a mounting hole, and a wiper motor secured to the motor mounting plate via the mounting hole. The motor mounting plate may include alternative mounting holes and geometry that support at least one of a washer fluid spray head, a washer fluid hose fitting, an anti-rotation screw, and a first or second pivot pin. The motor mounting plate may be bonded to the laminated windshield with an adhesive. The assembly may additionally include an exterior motor cover plate secured on an exterior side of the laminated windshield, and an interior motor cover secured on an interior side of the laminated windshield. The wiper motor may include wiper function switches, where the interior motor cover may include openings that receive the wiper function switches. The cutout may be semi-circular shaped. The motor mounting plate may be secured on an exterior side of the laminated windshield or may be secured on an interior side of the laminated windshield.
In another exemplary embodiment, a method of securing a wiper motor to a laminated windshield includes the steps of: (a) cutting a notch in the laminated windshield; (b) securing a motor mounting plate to the laminated windshield over the cutout, the motor mounting plate including a mounting hole; and (c) securing a wiper motor to the motor mounting plate via the mounting hole.
These and other aspects and advantages will be described in detail with reference to the accompanying drawings, in which:
With reference to the drawings, a windshield assembly includes a laminated windshield or glass 12 provided with a cutout 14. The cutout 14 may be a scallop cut or a semi-circular notch or the like. The cuts are made during manufacture of the laminated glass in appropriate locations along the edge of the glass.
A motor mounting plate 16 is secured to the laminated windshield 12 over the cutout 14. Preferably, the motor mounting plate 16 is a metallic plate and may be bonded to the laminated glass 12 using a suitable adhesive. The mounting plate 16 is provided with appropriate motor mounting holes 18 and other pertinent geometry to receive the wiper assembly accessories.
A wiper motor 20 is secured to the motor mounting plate 16 via the mounting holes 18. The mounting holes 18 and other pertinent geometry may also be configured to receive a washer fluid spray head 22, a washer fluid hose fitting (in the case of a “wet” arm application), an anti-rotation screw, and in some instances, a second pivot pin for a pantograph-style wiper arm. The wiper motor 20 preferably includes wiper function switches 23.
An exterior motor cover plate 24 may be secured on an exterior side of the laminated windshield 12 adjacent the notch 14. Additionally, an interior motor cover 26 may be secured on an interior side of the laminated windshield 12. The exterior motor cover 24 provides reinforcement for the motor mounting plate 16 and includes mounting holes 25 in alignment with the mounting holes 18 in the motor mounting plate 16. The interior motor cover 26 includes openings 28 for switch mounts and also serves as a decorative cover for concealing the components of the wiper assembly. A decorative plate may also be added on the exterior side of the windshield 12 for aesthetic purposes if desired, depending on the application requirements.
In a method of securing the wiper motor 20 to the laminated windshield 12, the notch 14 is first cut in the components of the laminated windshield during manufacture of the laminated glass. The motor mounting plate 16 is secured to the laminated windshield 12 via a urethane adhesive or other suitable adhesive, over the notch 14 as illustrated. The wiper motor 20 is then secured to the motor mounting plate 16 via its mounting holes 18 and motor mounting hardware.
The described assembly alleviates the need for cutting and aligning holes in the glass and results in a much more robust means of motor mounting. Moreover, the structure distributes forces encountered by the wiper and motor over a large area on the glass. Also, due to a small footprint, the view through the windshield is less obstructed.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
