US 2296950 A
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Description (OCR text may contain errors)
p -29,19 2- G. c; F;OEDL 2,296,950
.7 OVENGABINET', SHELF, AND DOOR Filed June 9, 1941 2 Sheets-Sheet 1 INVENTOR GEO/e6 5 C 1%504 ATTOENEYS.
qfi- 1942- G. c. ROEDL OVENCABINET, SHELF, AND DOOR 2 Sheets-Sheet 2 Filed "June 9, 1941 INVENTOR A D 5 c. m m 6+ B Patented Sept. 29, 1942 UNITED STATES PATENT OFFICE OVEN CABINET, SHELF, AND DOOR George C. Roedl, Beaver Dam, Wis. Application June 9, 1941, Serial No. 397,268
My invention relates to improvements in oven cabinets, shelves, and doors.
The object of my invention is to provide an assemblable shelf construction best suited to a cabinet or oven with which a door or other closure member is used andin conjunction with which, in the movement of such door, the
- shelves may be moved to and from a retracted position. v
Anotherobject ofmy invention is to incorporate in conjunction with the equipment above referred to a simplified inexpensive construction obviating heavy hinges, strong framework, and expensive assembly requirements.
Other objects will become apparent from the following description:
In the drawings:
Figure 1 is a vertical section through a closed oven equipped with my invention.
Figure 2 is a view similar to Figure 1 with the door of the oven in open position.
Figure 3 is a section on line 3-3 of Figure 2.
Figure 4 is a front elevationof the construction shown in Figure 2.
Figure 5 is a detail of the upper end of my lever and its connecting plate button.
Figure 6 is a section on line 66 of Figure 5. Figure 7 is a detail of the principal support for my plate, and illustrating an intermediate step in the assembly of my plate upon the principal support.
Like parts are designated by the same reference characters throughout the several views.
In the drawings, I have shown my invention incorporated inan oven, but it will be obvious from the following description that any cabinet or closure, in which shelves may more conveniently be used if they are slidable forwardly, may profitably incorporate my invention.
So that the environmental structure shown in the drawings may be understood, attention is called to a double walled cabinet type oven Hi, the spaced plies and I2 of which are formed to provide a top 3, a back wall H, a bottom lt', side walls l5 and I6, and a door |1 hinged at |3 so as to swing outwardly and downwardly from the position shown in Figure 1 to the position shown in Figure 2.
In place of the usual, permanently fixed side wall shelf supports customarily used in oven and Extending inwardly from each of the side walls I 5 and I6, at a high point and near the forward portion thereof, I provide a principal support member shaped to provide a roller 26 and an upwardly extending fixed flange 21 shown most clearly in Figure 7. Each of the plates 20 and 2| is provided with an arcuate slot 28 to provide a way for the principal support, and the plate is receivable upon the principal support 26 by a lacing" movement of the plate over the flange 21 as illustrated in Figure 7.
Extending upwardly from a pivotal connection at 30 upon each side wall, I provide a supporting lever 3| notched at 32 to receive a secondary plate support 33 and with a plate mounted upon the principal support 26 and upon a secondary support 32 positioned in the slot cabinet construction I provide two plates 23' 4 and 2|, one for either side of the oven. These plates have channel slides 22 for the reception and support of shelves 23 as shown more clearly in Figure 4.
of the lever 3| my plate 20 is sustained for horizontal sliding movement from retracted position as shown in Figure '1 to extended position as shown in Figure 2, the limitation of movement of the plate being determined by the principal support 26. 11 its abutment against the plate at the ends of the slot 23.
Secured to the plate at the forward lower portion thereof I provide a door link button 35 receivable in notch 36 in door link 31 which is .pivotally connected at 38 to the door |1, thus connecting each plate to the door whereby to move the plate from retracted to extended position in accord with the hinged movement of the door from the position shown in Figure 1 .to' the position shown in Figure 2.
Within a tubular spring'housing 40, I mount a compression spring 4| connected to rod 42 extending to the supporting lever 3| at a point adjacent pivot 30, thus the supporting lever 3| is biased to pull lever 3| rearwardly of the oven and, therefore, to pull the plate rearwardly, and tend to close the door l1. Because the rod 42 is secured to the lever 3| relatively closely adjacent fulcrum 30 of lever 3| and the weight of door I1 is greatly extended beyond the hinge at 38, the strength of the spring 4| is inadequate to pull the parts to retracted position when the door I1 is in wide open position and the plate is in extended position as in Figure 2.
It will be noted thatthe lever 3| is heldin position against secondary plate support 33 by the spring 4| and, therefore, only a slight angularity of the slot 32 is necessary to keep the lever in engagement with the secondary plate support. The same is true with respect to link 31 except 2 that gravity is relied upon to keep the link in engagement with the door link button 35.
It will be noted upon inspection of the drawings that the slot 28 is curved to correspond with the arc of movement of the secondary support 33 at the upper end of supporting link 3| so that throughout the entire movement of the plate from completely retracted to completely extended position the'channels 22 are maintained in horizontal position and the shelves 23 never are tilted. It will also be noted that the rearward extremity of the slot 28 is so positioned with reference to the link button 85 and the position of the pivot 38 upon the door I1 is such that when the dooris open as shown in Figure 2, the link and the principal support 25 and the pivot 38 are in one straight line, port for the door in its Figure 2 position. It will be further noted that when the door is swung to the position shown in Figure 1, the spring 4| acts as a door closing member as well as a shelf retracting member, therefore, no spring hinges at l8 are necessary and no expensive catches to hold the door in closed position are necessary.
My plate-like shelf supports are so shaped and designed as not to interfere with the circulation of heated convection currents emanating from a burner or heater such as the one shown at 50 in Figure 1, and from the above description it will be seen that the simplest form of assembly is made possible by my may be cheaply and individually constructed and then inserted in a cabinet or oven and each of the links 31 and levers 3i may be easily hooked in position in an assembling operation without the use of tools.
l. A cabinet having an internally projecting principal support and having a door hingedly moveable to and from closed position, a slidable shelf supportin plate supported upon said principle support in said cabinet and a link pivotally connected to said plate and to said door at a joint spaced from the hinge connection of the door, said principal support and said joint and said link being positioned for alignment to give thus providing a positive supinvention since each plate plate forwardly on said principal support and on said lever.
3. A cabinet having walled, box-like configuration and a door to hingedly close a forward face of the cabinet, said door having a hinge at its lower margin, an upstanding swingable lever adjacent a rearward portion of a side wall, a slotted plate adjacent the wall and pivotally connected to said lever at a relatively high point in the cabinet, a principal support for the plate extending through the slot at a high point in the positive door support when the door is in open position.
2. A cabinet having walled, box-like configuration and a door to hingedly close a forward face of the cabinet, said door having a hinge at its lower margin, an upstanding swingable lever adjacent a rearward portion of a side wall, a
slotted plate adjacent the wall and pivotally com I nected to said lever at a relatively high point in the cabinet, a principal support for the plate extending through the slot at a high point in the forward part of the cabinet and a link pivotally connected to the door and the plate whereby in the opening movement of the door to pull the forward part of the cabinet and a link pivotally connected to the door and the plate whereby in the opening movement of thedoor to pull the plate forwardly on said principal support and on said lever, the slot being curved to maintain the level of the plate in accord with the arc of movement of the lever.
4. A cabinet having walled, box-like configuration and a door to hingedly close a forward face of the cabinet, said door having a hinge at its lower margin, an upstanding swingable lever ad- Jacent a rearward portion of a side wall, a slot- .ted plate adjacent the wall and connected to said when the door is in full open position whereby said principal support is in positive supporting relation to the door.
5. In a device of the character described, a vertical plate-like shelf supporting structure and a housing therefor including a door, linkage to support one end of the structure for swaying movement into and outwardly of the housing and a roller and way to support the other end of the structure,-the contour of the way being curved to conform to the path of movement of the link supported end of the structure whereby a shelf supported by the plate-like supporting structure is maintained in horizontal position.
6. A cabinet and shelf structure, said cabinet having an upstanding notched lever adjacent each side wall near the rear thereof, an upwardly hooked principal support at a, high point near the front of each side wall, shelf supporting plates parallel with each side wall, each plate having a secondary support received in a lever notch and a slot in which the hook of the principal support is received, each of the plates being provided with shelf holding members, and shelves extending between the plates on said holding members whereby to hold the plates against said supports and prevent disassembly thereof.
GEORGE C. ROEDL.