The present application is related to Applicant's commonly assigned U.S. patent application Ser. No. 11/430,049 filed concurrently herewith and entitled Clothes Dryer Reversible Door Assembly.
The present invention relates to clothes dryers, and more particularly relates to a clothes dryer door assembly with a viewing window.
A domestic clothes dryer typically has a cabinet including a front panel with an access opening through which clothes are loaded and unloaded into a rotating drum. The door is mounted through one or more hinges to the cabinet front panel on one side of the access opening.
Many of the viewing window type doors are port hole type doors where the clothes dryer has a front panel with a circular opening and a circular door jam. The door has a hinge that is mounted to the circular door jam. The dryer typically has a drum bulkhead or bearing mounted in the dryer adjacent the front panel of the dryer. The front panel and bulkhead share a circular opening that is cropped horizontally along the bottom of the opening permitting a lint trap duct to be placed between the front panel and the bulkhead. The trap duct receives a filter through which air exits the dryer drum. The door comprises an outer circular window of plastic and an inner glass window that is non-circular and is cropped to conform to the opening in the bulkhead of the dryer. The inner window is typically mounted vertically and in alignment with the drum bulkhead wall when the door is closed so as to cover the lint trap opening. In some instances the inner or rear window of the door is recessed back from the drum bulkhead to thereby increase the size of the dryer drum. However, in this instance, the lint trap opening may be exposed should a user forget to insert the lint filter into the trap. Some clothes dryers have a lint trap flap that springs up to close the lint trap opening when the lint trap is removed and thereby prevent clothing articles from being drawn into the trap duct. While the additional space in the dryer drum provided by the recessing of the inner window from the drum is an advantageous feature, the use of the lint trap flap adds expense to the construction of the clothes dryer.
Another feature of these port hole doors is the positive securement of the inner window in the door assembly. Typically, this involves the use of several fasteners that are secured against the inner window of the glass to hold the window in place. This requires the use of a more expensive glass pane for the inner window and the assembly of the fasteners is labor intensive.
Accordingly, there is a need for an improved door assembly for a clothes dryer that has a relatively simpler inner window mounting.
The present invention relates to a door assembly having a viewing window for use with a clothes dryer cabinet. The door assembly comprises a mask frame for masking the view of the door assembly and for positioning an inner window in the assembly. The use of the mask frame for supporting the inner window reduces the number of fastening elements required to secure the inner window in place.
In one embodiment, the door assembly utilizes the hinge structure and a horizontally disposed retainer both of which secure the inner window positively in place.
In another embodiment, the inner window is mounted within the door assembly to slope downwardly and rearwardly of the inner door frame support. When the door is closed, the sloping inner window is positioned to cover a lint trap opening in the dryer while optimizing space within the dryer due to the sloping wall.
The door assembly further comprises an outer window spaced from the inner window. The outer or front window has a concave surface in one embodiment. The outer window in one embodiment is plastic and may comprises a polycarbonate plastic. The inner window may comprise glass or a moulded glass.
In one embodiment of the invention there is provided a door assembly adapted to be mounted to the clothes dryer cabinet. The door assembly comprises an inner door frame support comprising a first peripheral flange and a first collar depending rearwardly of the first peripheral flange defining a recessed window seat portion that surrounds a first central opening. The assembly comprises an inner window seated in the window seat portion and extending across the first central opening and a mask frame comprising a second collar depending rearwardly and overlaying the first collar of the inner door frame support for masking the inner door frame support. The second collar secures the inner window in the recessed window seat portion. The mask frame defines a second central opening. The assembly comprises a hinge structure secured with the inner door frame support and adapted to be secured with the clothes dryer cabinet. An outer window overlays the mask frame and the second central opening. The assembly further comprises an outer cover comprising a second peripheral flange covering a peripheral portion of the outer window and the inner door support frame. The outer cover is secured with the inner door frame support.
In another embodiment, the inner door frame support comprises two horizontally disposed hinge seat portions in the first peripheral flange. The hinge structure is secured in one of the horizontally disposed hinge seat portions and comprises a first hinge element extending from the inner door frame support and a second hinge element adapted to engage the inner window to positively hold the inner window in the recessed window seat portion. The assembly further comprises a retainer secured in the other one of the horizontally disposed hinge seat portions. The retainer comprises a retainer portion adapted to engage the inner window and positively hold the inner window in the recessed window seat portion. In another embodiment, the inner window comprises glass and a gasket surrounding the glass, and the second hinge element and the retainer portion engage the window gasket to secure the inner window in the recessed window seat portion.
In another embodiment of the present invention there is provided a door assembly adapted to be mounted to a clothes dryer cabinet. The assembly comprises an inner door frame support comprising a first peripheral flange and a first collar depending rearwardly of the first peripheral flange defining a recessed window seat portion that surrounds a first central opening. The assembly comprises an inner window seated in the window seat portion and extending across the first central opening. The assembly comprises a mask frame for masking the inner door frame support and defining a second central opening. The assembly comprises a hinge structure secured with the inner door frame support. The hinge structure comprises a first hinge element extending from the inner door frame support adapted for securement to the clothes dryer cabinet, and a second hinge element adapted to engage the inner window to secure the inner window in the recessed window seat portion. The assembly further comprises a retainer secured to the inner door frame support diametrically opposed from the hinge structure. The retainer comprises a retainer portion adapted to engage the inner window to secure the inner window in the recessed window seat portion. The assembly comprises an outer window overlaying the mask frame and the second central opening, and an outer cover. The outer cover comprises a second peripheral flange covering a peripheral portion of the outer window and the inner door frame support, and the outer cover being secured with the inner door frame support.
In another embodiment, the second hinge element and the retainer portion extend rearwardly between the first collar of the inner door frame support and the second collar of the mask frame. In another embodiment, the inner window comprises a flat surface portion surrounded by a gasket, and the second hinge element and the retainer portion engages the gasket of the inner window.
In another embodiment, the mask frame comprises a pair of opposing third peripheral flanges overlaying the first peripheral flange and defining horizontally disposed cut out slots adjacent the horizontally disposed hinge seat portions. The second collar depends rearwardly from the third peripheral flanges and the second collar has an inner surface and an outer surface. The outer surface is positioned facing the first collar and comprises a plurality of rearwardly extending rib spacers spaced about the outer surface of the second collar. The spacers each comprise a tip portion adapted to secure the inner window in the window seat portion.
In another embodiment each of the hinge and the retainer are removably secured to the inner door frame support by at least one fastener extending therethrough and into the inner door frame support.
For a better understanding of the nature and objects of the present invention reference may be had by way of example to the accompanying diagrammatic drawings.
Clothes are inserted into, and removed from, the drum 26 through opening 32. Opening 32 is shown closed by a window or port-hole like door 60. Door 60 has a handle 62 for pivotally opening the door about hinge 64.
In accordance with the present invention, the assembly of the door 60 is now described with respect to
The inner door assembly 66 further comprises an inner window 82. The inner window 82 comprises a flat glass piece which is circular in shape and has a truncated or cropped lower edge portion 86. In alternative embodiments, the glass may be a molded glass. The peripheral edge of the glass is surrounded by a gasket 88. The window 82 is adapted to be seated within the recessed seat portion 80 of the inner door frame support 70 so as to extend across the first central opening 81.
The inner door assembly 66 further comprises a mask frame 90 that is secured with the inner door frame support 70 to secure the window 82 in place in the window seat portion 80. The mask frame 90 is illustrated as a separate part in
The mask frame 90 defines a second central opening 98. The mask frame 90 has two cut out slots 100 between the flanges 93. These cut out slots 100 are positioned adjacent to the horizontally disposed hinged seat portions 76 when the inner door assembly 66 is assembled. From
Referring to
Referring to
Referring to
In a similar manner the retainer 116 is removably mounted by fasteners 122 in the other one of the horizontally disposed hinged seat portions 76 of the inner door support frame. The retainer 116 comprises a cover 124 and a retainer portion 126. The retainer portion 126 is adapted to engage the gasket 88 of the inner window 82 to positively hold the window 82 in the recessed seat portion 80. In the detailed description the hinge 64, retainer 116 and mask frame 90 act to hold the window 82 in place on the inner door frame support 70. It should be understood that either the mask frame 90 or the hinge 64 and retainer 116 may be used mutually exclusive of each other to secure the window 82 in place on the inner door frame.
Referring to
The peripheral ring like flange 134 of the outer window 130 is nested in the ring like peripheral flange 142 and the rim 146 of the cover 140. The flange 134 is substantially coextensive with the peripheral flange 142 of the cover 140 except for the cut out portion 136 that is provided to allow the cover flange 142 to overlay the hinge structure 64.
To complete the assembly of the door 60 the inner door 66 is secured to the outer door 68 by a plurality of fasteners 160 that pass through aligned apertures 250 in the peripheral flange 74 of the inner door frame support 70, the peripheral flanges 93 of the mask frame 90, the peripheral flange 134 of the outer window 130 and into receiving studs (not shown) found on the rear surface of the peripheral flange 142 of the cover member 140.
Additionally latches or spacers 170 (see
Referring to
The construction of the clothes dryer door assembly 60 allows for a the mask frame 90 to be secured to the inner door frame support 70 so as to hold the inner window 82 in place without having to utilize additional fasteners other than the hinge 64 and the retainer 126 to hold the window 82 in place. Further, the door structure of the present invention is adapted for reversibility or for rotation of the outer door assembly 68 relative to the inner door assembly 66.
The door assembly 60 is adapted to be mounted in alternate positions on the front panel 14 of the clothes dryer cabinet 12 so that the door assembly 60 can be configured to open either from the left or ride side. As shown in
While the invention has been described in terms of various specific embodiments, those skilled in the art will recognize that the invention can be practiced with modifications within the spirit and scope of the present invention disclosed herein.
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2508607 | May 2005 | CA | national |
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