EP1532402A2 - Four a coulisses - Google Patents

Four a coulisses

Info

Publication number
EP1532402A2
EP1532402A2 EP03763492A EP03763492A EP1532402A2 EP 1532402 A2 EP1532402 A2 EP 1532402A2 EP 03763492 A EP03763492 A EP 03763492A EP 03763492 A EP03763492 A EP 03763492A EP 1532402 A2 EP1532402 A2 EP 1532402A2
Authority
EP
European Patent Office
Prior art keywords
oven
rack
slide
slide member
bar
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.)
Granted
Application number
EP03763492A
Other languages
German (de)
English (en)
Other versions
EP1532402A4 (fr
EP1532402B1 (fr
Inventor
Baoloc Le
Quinn Chi
Klaus Dobberstein
Markus Geberzahn
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.)
Accuride International Inc
Original Assignee
Accuride International Inc
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 Accuride International Inc filed Critical Accuride International Inc
Publication of EP1532402A2 publication Critical patent/EP1532402A2/fr
Publication of EP1532402A4 publication Critical patent/EP1532402A4/fr
Application granted granted Critical
Publication of EP1532402B1 publication Critical patent/EP1532402B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/16—Shelves, racks or trays inside ovens; Supports therefor
    • F24C15/168—Shelves, racks or trays inside ovens; Supports therefor with telescopic rail systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/16—Shelves, racks or trays inside ovens; Supports therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B17/00—Furnaces of a kind not covered by any preceding group
    • F27B17/02—Furnaces of a kind not covered by any preceding group specially designed for laboratory use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D5/00—Supports, screens, or the like for the charge within the furnace

Definitions

  • the present invention relates generally to ovens, and more particularly to extendable rack assemblies for ovens.
  • Ovens often have one or more racks generally within the oven.
  • the racks are useful for the placing of cookware, food, and other items, within the oven.
  • the racks place the cookware generally towards the middle of the oven, and keep the cookware away from heating elements and the like.
  • ovens with multiple racks allow for placement of cookware on a variety of levels within the oven, thereby increasing the total volume of available cooking space.
  • the racks are often supported by ledges formed along the walls of the oven.
  • the racks are then movable in and out of the oven on the ledges. This allows the racks to be removed from the oven for cleaning or for other purposes. Often, the racks may be partially removed from the oven so as to allow easier access to items placed on the racks.
  • Movement of the racks on the ledges, or through other friction mechanisms, may not always provide smooth and relatively effortless motion. Unconformities in the ledges or friction mechanisms may interfere with motion of a rack. Similarly, food or other items may become lodged in a rack pathway, increasing the difficulty in movement of the rack. In addition, the racks often may not be extended very far from the oven, particularly when heavy items are placed on the rack. Since the racks must still be supported by the ledges of the oven, over extension of the rack may lead to disastrous results, with the rack and its contents dropping to perhaps the floor. Moreover, the items on the rack may be difficult to view or handle if the rack is partially in the oven. This increases the chances of burns occurring to users of the oven through contact with other racks or the side walls of the oven. Further, at times lateral stability of a rack, particularly when a rack is extended from the oven, may be important.
  • the present invention provides an oven with an extendable rack.
  • the rack is fully extendable from the oven. In one embodiment this is accomplished through the use of a full extension slide provided on a rack frame resting on ledges of the oven, with a rack coupled to the full extension slide.
  • the invention provides an extendable oven rack assembly comprising an oven rack adapted for positioning in an oven cavity; two full extension slides, one each coupled to opposing margins of the oven rack, with the slides adapted for positioning approximate opposing side walls of the oven cavity and the slides providing extension of the oven rack from a position entirely within the oven cavity to a position outside the oven cavity.
  • an extendable oven rack assembly comprising an oven rack adapted for positioning in an oven cavity; two full extension slides, one each coupled to opposing margins of the oven rack, opposing wire frames positioned approximate opposing margins of the oven rack, the wire frames containing vertically spaced cross-bars; a first bracket coupled to each slide, the first bracket including a channel receiving a single cross-bar of the wire frame; and a second bracket coupled to each slide, the second bracket including a channel and a ledge, the channel receiving the single bar and the ledge extending under the single bar.
  • an oven comprising: an oven enclosure including sidewalls having ledges; an oven rack normally within the oven enclosure; full extension slides each with a first slide member coupled to the oven rack along opposing margins of the oven rack; and a rack frame coupled to a second slide member of each of the full extension slides, the rack frame resting on opposing ledges of the oven enclosure.
  • an oven comprising an oven enclosure including sidewalls having ledges; an oven rack normally within the oven enclosure; full extension slides each with a first slide member coupled to the oven rack along opposing margins of the oven rack; opposing wire frames positioned approximate the side walls of the oven, the wire frames containing vertically spaced cross-bars, a first bracket coupled to each slide, the first bracket including a channel receiving a single cross-bar of the wire frame; and a second bracket coupled to each slide, the second bracket including a channel and a ledge, the channel receiving the single bar and the ledge extending under the single bar.
  • an oven rack assembly comprising an oven rack; full extension slides comprising a first slide member and a second slide member extendably coupled by an intermediate slide member, each first slide member coupled to the oven rack along opposing margins of the oven rack; and a rack frame coupled to the second slide member of each of the full extension slides.
  • FIG. 1 illustrates a partial view of an oven with a rack assembly of the present invention
  • FIG. 2 illustrates a side view of an oven wall and rack frame resting on a ledge of the oven wall.
  • FIG. 3 is a perspective view of a side-by-side slide used in an embodiment of the rack assembly
  • FIG. 4 is a cross-section of the side-by-side slide of FIG. 3;
  • FIG. 5 illustrates a slide accessory useful with the slide of FIG. 3;
  • FIG. 5 a illustrates a further slide accessory useful with the slide of FIG. 3;
  • FIG. 5b illustrates the slide accessory of FIG. 5a with a rack
  • FIG. 5c illustrates a further slide accessory useful with the slide of FIG. 3 and an associated rack
  • FIG. 5d illustrates the slide accessory and rack of FIG. 5c with the rack held in place
  • FIG. 6 illustrates an embodiment of a rack used in the present invention
  • FIG. 7 is a perspective view of an alternative slide used in embodiments of the invention.
  • FIG. 8 is a cross-section of the slide of FIG. 7;
  • FIG. 9 illustrates a detent in mechanism of the slide of FIG. 7;
  • FIG. 10 illustrates a detent out mechanism of the slide of FIG. 7
  • FIG. 11 illustrates an oven and rack assembly using a holding tab useful in some embodiments of the invention
  • FIG. 11 A is a top view of the rack frame and slide assembly of FIG. 11;
  • FIG. 1 IB is a further view of the tab and plastic insert of FIG. 11 A;
  • FIG. 11C illustrates a further extendable rack frame
  • FIG. 1 ID show a further view of a roller of FIG. 1 IC
  • FIG. 12 illustrates a rack frame with the holding tab of FIG. 11 in some embodiments of the present invention
  • FIG. 13 illustrates a lock mechanism useful in some embodiments of the invention
  • FIG. 14 illustrates a further lock mechanism useful in some embodiments of the invention.
  • FIG. 15 illustrates a further lock mechanism useful in some embodiments of the invention.
  • FIG. 16 illustrates a further lock mechanism useful in some embodiments of the invention.
  • FIG. 17 illustrates a further lock mechanism useful in some embodiments of the invention.
  • FIG. 18 illustrates a release lever useful in some embodiments of the invention
  • FIG. 19 illustrates a lever release latch mechanism useful, for example, in the embodiment of FIG. 3;
  • FIG. 20 illustrates the lever release latch mechanism of FIG. 19 in the open position
  • FIG. 24 illustrates an oven rack mounted to a wire frame using slides
  • FIG. 25 illustrates a clip used to mount a slide to a wire rack
  • FIG. 26 illustrates a further view of the clip of FIG. 25
  • FIG. 27 illustrates a further clip used to mount a slide to a wire rack
  • FIG. 21 illustrates a view of an alternative slide mount system used in an oven
  • FIG. 22 illustrates a further view of mounting rods used to mount a slide in an oven cavity
  • FIG. 23 illustrates a further view of the mounting bars of FIG. 22;
  • FIG. 28 illustrates a further system for connecting an oven rack to a slide assembly
  • FIG. 29 illustrates a front view of the system of FIG. 28.
  • FIG. 1 illustrates a partial view of an oven.
  • the oven includes a base 11 and a side wall 13.
  • a back wall of the oven is a back wall of the oven, a roof of the oven, an opposing side wall opposing the side wall illustrated, and a door across the front of the oven.
  • These elements of the oven are not specifically illustrated, although known, so as to allow further view of a rack assembly 15 used in the oven.
  • the rack assembly includes a rack frame 17 supported within the oven, a rack 19 to support cookware, and extendable slides 21 interconnecting the rack and the rack frame. In use the rack frame remains seated within the oven, and the rack may be extended from the oven using the extendable slides.
  • the rack frame rests on ledges 23 on the oven sidewalls.
  • the rack frame forms a substantially rectangular shape of tubular metal, with a front bar 25, a rear bar 27, and side bars 29 connecting the front and rear bars at their ends.
  • the side bars rest upon ledges formed on the side walls of the oven.
  • FIG. 2 twelve ledges are provided, with six ledges on the illustrated side wall and six ledges on the not shown opposing side wall.
  • the corresponding ledges on the two sidewalls are at substantially the same height, with each of corresponding ledges providing a substantially flat surface which may support an object which extends from one side wall of the oven to the other.
  • the ledges substantially cross the length of the oven, with gaps 31, 33, as may be seen in FIGs. 1 and 2, towards the front of the oven and towards the rear of the oven.
  • the underside of each of the ledges also includes, towards the front of the ledges, a downward protrusion 35. The downward protrusion is used in some ovens so as to stop forward movement of a rack in the oven.
  • a ramped portion 37 is formed along rear ends of the side bars of the rack frame.
  • the rear bar of the rack frame is elevated somewhat with respect to the front bar of the rack frame when the side bars rest on the ledges.
  • the rear bar is elevated an amount sufficient to have its forward movement obstructed by another ledge in the series of ledges on the oven side walls.
  • FIG. 2 more fully illustrates this aspect, and other aspects, of the rack frame and the ledges of the oven side wall.
  • FIG. 2 is a side view illustrating an oven side wall 51, ledges on the oven side wall 53, and a rack frame 55. As illustrated, a first distance separates each ledge of the ledges of the side wall. Side bars 57 of the rack frame largely rest on the ledges. The side bars are angled upwards towards the rear of the side bars. The result is a rear bar 59 of the rack frame is in an elevated position. The side bars are angled sufficiently such that the rear bar of the rack frame is elevated at a greater amount than the distance separating the ledges. Thus, the rear bar may be suitably placed into the gap between the ledges and a rear wall of the oven such that forward motion of the rear bar is obstructed by a ledge. In the embodiment illustrated, the side bars are angled approximately 40 degrees from the horizontal.
  • the relative position of the ledges on the oven side wall and the rear bar of the rack frame serve to prevent undue angular motion of the rack assembly, particularly when the rack is extended from the oven and forms a lever arm with respect to the rack frame. Further, in the event of changes to oven cavity designs, modification of the rack frame design may be accomplished without necessarily significant changes to other components of the rack assembly.
  • the side bars of the rack frame include a mounting feature 39 allowing mounting of the side bars to a web 41 of the drawer slide.
  • the mounting feature is a hole placed through the side bars allowing a screw, a bolt, a rivet, or other mounting feature to be attached through the rack frame and into a web of a slide member.
  • other mounting methods are used.
  • a flange can be welded or otherwise attached to the rack frame, such that the flange extends upwards of the rack frame and a slide member mounted to the flange.
  • FIG. 3 illustrates a perspective view of a full extension slide used in some embodiments of the invention. As illustrated, the slide of FIG. 4 is a side-by-side slide.
  • the side-by-side slide sometimes also called a parallel slide, often, and as illustrated, includes two outer members 101, 103 with generally C-shaped cross-sections, with the members arranged so that the C-shaped cross-sections oppose each other. Between the two generally C-shaped cross-sections is a somewhat I-shaped inner member 105.
  • the outer members extend in opposing directions from the inner member, with the outer members and the inner member connected by way of bearings riding in bearing raceways.
  • FIG. 4 illustrates a cross-section of the slide of FIG. 3.
  • the inner member is a substantially I-shaped member.
  • the inner member may be formed, for example, by bonding two somewhat C-shaped members together along their webs.
  • the inner member is a roll formed I-shaped member.
  • the I- shaped member includes a central web 107, with cross pieces 109 on the top and the bottom of the web.
  • the cross pieces include bearing raceways 111 along either side of the web. Bearings 113 ride in the bearing raceways and rollably couple the inner member to the outer members.
  • the outer members also include bearing raceways 115 formed along the length of webs of the outer members, with the bearings riding in the bearing raceways of the outer and inner members.
  • the side edges of the rack frame are fixed to a web of a first outer member.
  • the first outer member is fixed to the rack frame, with the rack frame within the oven.
  • the inner member extends from the first outer member, and is illustrated as being extended from the first outer member towards the front of the oven.
  • a second outer member extends from the inner member with the second outer member substantially fully out of the oven.
  • full extension when used with respected slide refers to the ability of a portion of the slide, namely a slide member, to extend substantially completely out of an enclosure.
  • a rack is coupled, in some embodiments by way of a mounting accessory discussed later, to the second outer member.
  • the rack may be extended substantially out of the oven.
  • the rack is stably supported by the slides.
  • the rack includes side bars 43 which are removably mounted to an accessory 45 on the drawer slide.
  • FIG. 5 illustrates an embodiment of the accessory.
  • the accessory is an elongated L-bracket.
  • the L-bracket includes two outer surfaces 121 on the outside of the L and two inner surfaces 123 on the inside of the L. One of the outer surfaces is adapted to be mated to a web of a slide member.
  • a side of the L-bracket includes holes adapted to receive fasteners and the like for attachment of the bracket to the web of the slide member.
  • the side of the L- bracket attached to the slide member may be viewed as the vertical component of the L- bracket.
  • the other side of the L-bracket may therefore be viewed as a horizontal component of the L-bracket.
  • the outer side of the horizontal component of the L-bracket includes retention features for retaining the rack in position.
  • the retention features include a hook 125 at one edge of the side and an abutment 127 at the opposing edge of the side.
  • a forward bar of the rack may be slid under the hook, with the rear bar of the rack placed against the abutment, as may also be seen in FIG. 1.
  • the upper edge of a horizontal component also includes an angled abutment 129.
  • the angled abutment is adapted to contact an angled surface of the rack so as to prevent side to side motion of the rack.
  • the abutment also serves to help prevent forward and rearward motion of the bracket as well.
  • the use of the L-bracket also serves to shroud parts of the slide. For example, and as illustrated in FIG. 1, the top of the L-bracket substantially crosses the width of the slide. Accordingly, during extension and retraction of the slide the portions of the slide moving with respect to one another are shielded from accidental insertion of debris or fingers or other items which might impact the ability of the slide to extend or retract. Further, when the slide is fully retracted the operational features of the slide are protected from spattering of material cooking in the oven.
  • FIG. 5a illustrates a further elongated L-bracket to which a rack may be removably mounted.
  • the accessory of FIG. 5 a is similar to the accessory of FIG. 5.
  • an outer side of a horizontal component 501 of the L-bracket includes retention features for retaining the rack in position.
  • the retention features include a hook 503 at one edge of the side and an abutment 505 at the opposing edge of the side.
  • a forward, or alternately rear, bar of the rack may be slid under the hook, with the rear, or alternately forward, bar of the rack placed against the abutment.
  • the upper edge of the horizontal component also includes a side wall 507 portion. The side wall portion is adapted to be placed against the side wall of the rack.
  • FIG. 5b illustrates a rack 515 placed against a side wall 511 and an abutment 513.
  • the abutment is in the interior portion of the rack, with a side bar 517 of the rack somewhat maintained in position by the side wall.
  • the side wall is placed sufficiently close to the abutment such that a side wall serves to prevent motion of the rack in two directions due to the curvature of the rack contacting an edge of the side wall.
  • FIG. 5c illustrates a further retention feature useful with L-shaped bracket accessories.
  • a tab 521 extends from the abutment.
  • the tab includes a small post 523.
  • the post may be formed, for example, using a rivet.
  • a sliding bracket 525 is coupled to the tab, the sliding bracket having an elongated slot 527. The slot is adapted to receive the post.
  • the bracket is positioned away from the rack, and the rack may be released from the accessory.
  • FIG. 5d illustrates the bracket slid forward over the rack, maintaining the rack in position.
  • the sliding bracket is somewhat L-shaped, thereby providing both a stop 531 while maintaining the rack in position as well as a handle
  • FIG. 6 illustrates a rack adapted for use with the present invention.
  • the rack comprises a forward bar 151, a rear bar 153, and side bars 155 interconnecting the forward and rear edges.
  • a support bar 157 is placed with interconnects the two side bars.
  • Rack bars 159 are placed from the front edge to the rear edge, with the spacing of the rack bars adapted for placement of items on the rack.
  • the support bar provides additional support for the rack bars.
  • the side bars include an inward angled bend 161. The inward angled bends provide additional structural stability to the rack, as well as providing a surface adapted for placement against the angled abutment of the mounting accessory.
  • FIG. 7 illustrates a perspective view of an alternative slide used in embodiments of the invention.
  • the alternative slide is a hybrid parallel and telescopic slide.
  • the hybrid slide is a full extension slide, with three slide members.
  • a first slide member 171 is substantially C-shaped with a planar web and bearing raceways along the length of the planar web.
  • a second slide member 173, which may also be called an intermediate slide member, includes a first C-shaped section and a second C-shaped section 177. The two C- shaped sections face away from each other, and are coupled together through welding or embossing or the like.
  • the first C-shaped section 175 is of reduced dimension compared to the second C-shaped section 177.
  • the first C-shaped section is dimensioned adapted to fit within the C-shaped section of the first slide member. Bearings riding in the bearing raceways of the section and the slide member couple the slide members together in a slidable, or Tollable, fashion.
  • a third slide member 179 is coupled to the second C-shaped section of the intermediate slide member by bearings. The third slide member is dimensioned to fit within the second C-shaped section of the intermediate slide member. Accordingly, the alternative slide has features of a parallel, or side-by-side, slide, yet also has features of a telescopic slide. As can be seen in the cross-sectional view of FIG. 8, the alternative slide includes four major components.
  • the four major components are the first slide member 171, the first C-shaped section of the second slide member 175, the second C-shaped section of the second slide member 177, and the third slide member 179, which may be termed first, second, third and fourth components, respectively. As illustrated, and providing conveniences in manufacture, the first and third components are similarly dimensioned, as are the second and fourth components.
  • the assembly of the present invention includes features providing for maintenance of the rack at a position within the oven, at a position of intermediate extension from the oven, and at a position fully extended from the oven.
  • Such a feature is convenient in that inadvertent movement of the rack from positions at which items on the rack are commonly handled may be inconvenient.
  • the features allow for improved sequencing of the drawer slide to avoid bearing drift and uneven load distribution.
  • detent features with a detent providing a frictional interface, either in one direction, an opposing direction, or both directions, with the frictional interface requiring an increased force to allow for movement of the slide.
  • a detent-in mechanism for the slide of FIG. 7 is illustrated in FIG. 9.
  • the term detent-in refers to a detent in the fully retracted position within the oven.
  • a strip of material 201 is affixed to an inner portion of a web 103 of a slide member.
  • the strip of material includes a flat portion 205 affixed to the web, and a tongue 207 extending away from the web at a slight angle.
  • a leading edge of the tongue is bent towards the web of the slide member to provide a rounded leading surface 209. Due to stiffness in the material, metal in one embodiment, the tongue serves as a leaf spring.
  • the tongue extends a sufficient distance from the web of the slide member to contact a protrusion extending towards the spring from the web of the meeting slide member.
  • a protrusion rides up and over the tongue, increased force is required for continued movement of the drawer slide.
  • to open a slide requires passage of the protrusion over the forward edge of the tongue.
  • the rounded leading edge of the tongue allows for deflection of the leaf spring without the protrusion catching the leading edge of the tongue.
  • the leaf springs are attached to the first slide member and the larger cross-sectional piece of the second slide member.
  • the protrusions are placed on the third slide member and the smaller cross-sectional portion of the second slide member.
  • the reduced cross-sectional pieces namely the first section of the intermediate slide member and the third slide member, have similar designs, as do the larger cross-sectional pieces, namely the first slide member and the larger section of the intermediate slide member.
  • such placement of the leaf springs and protrusions provides for a detent function at the full end position and at an intermediate position.
  • FIG. 10 illustrates a detent-out mechanism of the slide of FIG. 7.
  • the detent-out mechanism like the detent-in mechanism, makes use of a leaf spring.
  • the leaf spring of the detent-out mechanism includes a aperture 221 near the leading edge of the tongue of the leaf spring.
  • the leading edge of the aperture includes a ramp surface 223, while the following edge 225 is a simple abutment.
  • a tab 227 is lanced in the web of an opposing slide member, with the tab adapted to be positioned in the aperture of the leaf spring.
  • the tab hits the leading edge of the leaf spring, forcing the leaf spring down and providing a frictional interface.
  • the tab then moves into the aperture, with the spring action of the leaf spring allowing for increased movement of the tab into the aperture.
  • contact between the tab and following edge of the aperture prevents further motion of the slide. If, however, removal of a slide member from the slide assembly is desired, depression of the leading edge of the tongue, which extends beyond the slide member, allows for easy removal of the slide member.
  • the tab and spring therefore serve as a lock feature as well.
  • the leaf spring is attached to the smaller slides and/or cross-sections, with tabs at the leading edges of the slide components having larger cross-sections.
  • the leaf spring and tabs provide both a detent out and a lock feature.
  • FIG. 11 illustrates an embodiment in which tilting of the assembly is not used to remove the rack frame from the oven. Instead a tab extends from the rack frame. The tab is adapted to contact a downward protrusion near the front of the bottom of another ledge. Contact of the tab and the protrusion from the ledge prevents forward movement of the rack frame.
  • FIG. 11A is a top view of the rack frame and slide assembly of FIG. 11.
  • the rack frame and slide assembly includes a rack frame 1121 and attached slides 1123.
  • tabs 1125 extending from the wire frame.
  • the tabs serve as a leaf spring pressing against side walls of an oven enclosure (not shown).
  • an outward edge 1127 of the tab includes a plastic insert 1129.
  • the plastic insert mounts about the leading edge of the tab approximate the oven wall enclosure.
  • the plastic insert which in some embodiments is a high temperature plastic, provides a cushioning effect so as not to scratch the walls of the oven enclosure.
  • FIG. 1 IB is a further view of the tab and plastic insert of FIG. 11 A.
  • the tab includes a first linear portion 1131 adapted for welding or the like to a rack frame.
  • An extending portion 1133 with a rounded leading edge 1135 provides a leaf spring effect.
  • About the rounded leading edge is a plastic clip.
  • the plastic clip includes a arc- shaped surface configured to snuggly fit against the rounded leading edge of the tab.
  • Two gripping clips 1141 extend from the arc, and are adapted to grip the leading edge of the tab.
  • FIG. 11C illustrates a further extendable rack frame for mounting in an oven using ledges along the oven sidewalls.
  • the assembly of FIG. 11C includes a wire rack frame 1145 with coupled slides.
  • a wire rack (not shown) for the placement of food stuffs and the like would be mounted to the slides.
  • a roller 1147 is mounted to opposing edges of the rack frame. The roller is rotateable such that as the rack frame is inserted into the oven enclosure the roller rolls against the side walls of the oven enclosure.
  • the material of the roller is preferably a high temperature plastic, such as PEEK.
  • the roller is of particular utility if the side ledges of the oven wall include end-stop stampings which provide a frictional interface, or detent, for stable position of the rollers in the end stops. This allows extension of the frame coupled to the slides to extend from the oven enclosure without movement of the rack frame.
  • FIG. 11D shows a further view of the roller 1151.
  • the roller is mounted to a post 1153 attached to the rack frame 1155, with the post extending virtually from the rack frames.
  • the roller is mounted horizontally about the post.
  • FIG. 12 illustrates a tab extending from the rack.
  • the rack includes forward and rearward portions adapted to rest on a ledge.
  • An intermediate portion of the side bar is at an inset.
  • a bar is attached to the inset, with one end of the bar extending away from the inset and forming a leaf spring.
  • the forward edge of the leaf spring is angled back towards the rack frame. In operation, the angled portion contacts a protrusion from the ledge of the oven.
  • Application of force either in insertion into the oven or extraction from the oven, results in flexing of the tab and the frame passing by the ledge.
  • FIG. 12 Also indicated in FIG. 12 is an alternative method of mounting a rack frame to a slide.
  • a flange is affixed to a portion of the rack frame.
  • the flange extends upward from a plane formed by the rack frame.
  • the upwardly extending portion of the flange is affixed to a web of a drawer slide.
  • FIG. 13 illustrates a lock-out feature useful in some embodiments of the present invention.
  • the lock-out feature of FIG. 13 includes a tab 1301 lanced from a first slide member 1303 which is insertable into a aperture 1305 of a leaf 1307 spring mounted on the web of another slide member.
  • This lock-out tab are in some ways similar to those previously described.
  • FIG. 14 illustrates a further leaf spring useful in some embodiments of the invention.
  • the leaf spring includes a first angled portion 1401 extending away from a drawer slide member 1403 to which the leaf spring is mounted, a second portion 1405 substantially parallel to a drawer slide member web, and a rounded leading edge 1407.
  • an aperture is located in the parallel portion of the leaf spring.
  • FIG. 15 illustrates a further lock-out mechanism, which in many ways is similar to that illustrated in FIG. 13, but with additional detail including a rounded leading edge of the leaf spring.
  • FIG. 16 illustrates a lock-out mechanism for a three-member telescopic slide useful in some embodiments of the invention.
  • the lock-out mechanism includes an arcuate flexible strip 1601 affixed at one end 1603 to an inner member drawer slide 1605.
  • the inner member is coupled by bearings 1607 to an intermediate member, which in turn is coupled to an outer member 1611.
  • the arcuate strip includes notches 1613 about the middle, with the notches adapted to catch tabs (not shown) extending from the intermediate member.
  • the flexible strip includes a curved forward end forming a tab 1615 extending towards the web of the inner member.
  • a slotted aperture 1617 is placed within the web of the inner member, with the tab positioned so that depression of the flexible strip towards the web of the inner member allows the tab to pass through the aperture. Depression of the flexible strip also allows the notches in the flexible strip to pass by the tabs extending from intermediate member unimpeded.
  • FIG. 17 illustrates a locking mechanism for a three-member telescopic drawer slide.
  • the locking mechanism includes a biasable arm 1701 affixed to an inner member web 1703 of a three-member drawer slide.
  • the biasable arm is affixed by means of a rivet 1705 towards one end.
  • a spring 1707 is used to normally bias the arm in a first position, which catches a tab 1709 on the intermediate member maintaining the slide in position.
  • Telescopic slides have been discussed in detail for use in the present invention. Telescopic slides are embodiments of full extension slides. Those skilled in the art will appreciate that other embodiments of full extension slides may also be used in the present invention.
  • FIG. 18 illustrates an alternative release lever which may be used in conjunction with aspects of the invention.
  • the release arm includes a cam 1801 extending away from a locking lever, with contact of the cam and release lever 1805 biasing the release lever.
  • the cam includes an extending tab 1803 on a distal end to allow for movement of the release lever.
  • FIG. 19 illustrates a further locking mechanism in accordance with aspects of the invention.
  • the locking mechanism includes an arm 1901.
  • the arm is at one end of a cylindrical shaft 1903.
  • the other end of the shaft includes a lever. Movement of the lever results in rotation of the shaft, and therefore movement of the arm.
  • the cylinder is mounted against the side of the L-bracket accessory 1907, with the lever towards the front of the L- bracket, and therefore the front of the oven, and the arm towards the rear.
  • With the lever in a first position the arm extends underneath the L-bracket and abuts the rear end of a drawer slide (not shown) to which the L-bracket is mounted. Movement of the arm in a forward direction, and therefore of the L-bracket and associated rack, is prevented by contact between the arm and the rear of the drawer slide.
  • FIG. 20 shows the latch and assembly of FIG. 19, with the lever 2001 positioned so that the arm no longer abuts the rear of the drawer slide. In such a position the drawer slide may be extended, with the rack extending from the oven. Once the rack has been extended from the oven, as shown in FIG. 20, the lever may be repositioned so that the arm again abuts a portion of the drawer slide, thereby locking the rack in an extended position.
  • the lever arm and system of FIGs. 19 and 20 are right for a convenient locking mechanism for the assembly.
  • FIG. 21 illustrates a cut-away view of a further oven including an extendible rack in accordance with aspects of the invention.
  • the oven includes an oven cavity with a ledge 2102 on the sidewall of the oven cavity.
  • slides 2104 are coupled to the ledge.
  • the slides support an oven rack 2106 attached to the slides by way of a screw 2108 rivet or a weld, with the rack extendable from the oven cavity using the slides.
  • a rear support bar 2110 is attached, through welding for example, to the web of the rear of the slide.
  • the rear support bar is symmetrical, with aspects of the bar away from the illustrated slide shown in FIG. 21 to allow for increased ease of understanding.
  • the bar includes a horizontal portion 2112 extending towards the rear of the oven cavity.
  • the horizontal portion is adapted to rest underneath the ledge, preventing the rear bar from moving upwards when the rack is extended.
  • An end of the bar 2114 is bent upwards.
  • the end of the bar is adapted to wrap around the back of the ledge and restrict forward movement of the bar.
  • the end of the bar is also welded to the web of the slide member. The end of the bar therefore prevents undesired extraction of the slide from the oven cavity. By tilting upward the forward edge of the slide, however, the end of the bar may be displaced so as to clear the ledge and allow for removal of the slide from the oven cavity.
  • the slide is supported on the ledge by a forward bar 2116.
  • the forward bar is welded to a portion of the outer slide member web.
  • the bar is welded in horizontal position along the length of the web.
  • the bar includes a downward facing leading edge, which is adapted to contact a front of the ledge of the oven cavity when the bar is resting on the ledge.
  • the bar extends approximately halfway along the length of the slide member.
  • FIG. 22 a side view of the oven cavity is provided with the oven walls illustrated as translucent.
  • a forward bar 2200 rests on the top of a ledge 2202.
  • the forward bar is attached to the web of the slide member 2204.
  • the forward bar extends substantially along the length of the slide member and provides vertical support for the slide. A leading edge of the forward bar wraps around the front of the oven ledge, preventing further rear movement of the slide.
  • a rear bar contains a horizontal portion 2206.
  • the horizontal portion rests underneath the oven ledge and is adapted to contact the rear of the oven ledge 2210.
  • An upwardly bent portion 2208 wraps around the rear of the oven ledge. The upwardly bent portion prevents the slide member from being pulled out of the oven when the slide is extended. However, if the front of the slide is tilted upward, the upwardly bent portion is able to pass underneath the ledge and allow for removal of the slide.
  • the connecting bar which connects the opposing sides of the portions adapted to contact the oven ledges provides for increased lateral support for the structure as a whole. As the rear bar is substantially the width of the oven cavity, the rear of the slide and the portions of the bar which interacts with the ledge are maintained in position along the ledge, and do not flex inwards away from the ledge.
  • FIG. 23 shows further detail of the portion of the rear bar and the slide.
  • an upwardly bent portion of the rear bar 2300 is mounted to a web of a slide member 2302.
  • a portion of the bar also is in contact with a rear edge of an oven ledge 2304.
  • FIG. 24 illustrates an alternative extendable oven rack coupled to a wire frame.
  • Some ovens use wire frames within the oven cavity to support racks and other similar fixtures.
  • the wire frames may be used for a variety of reasons, including maintenance of a smooth or somewhat smooth cavity wall for airflow purposes and the like.
  • wire frames 2400 support opposing edges of an oven rack 2404.
  • the wire frames include opposing parallel vertical posts coupled by cross-bars.
  • the wire frames are adapted to be mounted to opposing side walls of an oven cavity, with the oven rack bridging the distance between the two wire frames.
  • Slides 2402 couple the oven rack to the wire frames.
  • the slides are a side-by-side slide.
  • the oven rack may, for example, have opposing sides each welded to one of the slide members of the slides.
  • the slides are supported by a cross-bar of the wire frame.
  • a forward hook 2406 couples each slide to a cross-bar near a forward portion of the wire frame
  • a rear hook 2408 couples each slide to a rear portion of the cross-bar of the wire frame.
  • a ledge 2410 extends from the slide underneath the cross-bar.
  • the ledge is approximate a rear post of wire frame and includes a cut-out portion 2412 adapted to receive a vertical post of the wire frame.
  • the hooks therefore, support the slide and the oven rack on the cross-bar, with the ledge providing further support.
  • the weight of the extended slides and oven rack could cause the slides and rack to tilt forward.
  • the ledge serves to prevent upward motion of the rear of the rack and slide structure, thereby safely maintaining the rack in position.
  • FIG. 25 illustrates a view of the forward hook of FIG. 24.
  • the hook includes a planar portion 2500 adapted to be welded or otherwise affixed to the web of the slide member.
  • a top portion 2502 extends from the planar portion, with the top portion and the planar portion forming the shape of an L-bracket.
  • a front 2504 of the hook is formed of a tab extending downward from the top portion with the front of the hook largely parallel to the planar section.
  • the front of the hook includes a outwardly bent leading edge 2506 curved away from the planar portion, providing for easier insertion of a cross-beam into the hook.
  • FIG. 26 illustrates a further view of the hook of FIG. 25. As illustrated in FIG.
  • the inner portion of the front of the hook is illustrated, including a protrusion 2600 extending into the space between the planar portion and the front of the hook.
  • the protrusion which may be formed by embossing the front of the hook, serves to act as a frictional interface or detent to maintain a cross-bar within the hook and provide a snapping insertion feature.
  • FIG. 27 illustrates a view of the rear hook of FIG. 24.
  • the hook includes a planar portion 2700 adapted to be welded or otherwise affixed to the web of the slide member.
  • the planar portion as illustrated in FIG. 24 is a largely rectangular elongate plate.
  • a top portion 2702 extends from a portion of the planar portion, with the top portion and the planar portion forming a shape of an L bracket.
  • the top portion is approximate a forward edge of the planar portion, which is elongate in shape. Accordingly, the L bracket formed by the top portion and the planar portion is only towards the front of the planar portion.
  • a forward edge 2704 hangs from the top portion, with the forward edge substantially parallel to the planar portion.
  • the forward edge, top portion, and planar portion forming a U shaped channel.
  • the U shaped channel is adapted to receive a cross-bar of a wire frame.
  • a ledge 2706 extends from the rear of the planar portion.
  • the ledge extends in the same direction as the top portion, and with the top portion being viewed as extending from an upper front edge of the planar portion, the ledge extends from the lower rear of the planar portion.
  • a forward edge of the ledge includes a cut-out 2708. The cut-out is adapted to receive a vertical post of the wire frame.
  • FIG. 28 illustrates a view of mechanism for coupling an oven rack to a slide member.
  • an oven rack 2800 is coupled to a side-by-side slide 2802.
  • a forward bar of the oven rack has a mounting S-bar 2806 coupled to it.
  • the mounting S-bar includes a mounting portion 2804 welded to the bottom of the oven rack.
  • An offset bar 2808 is coupled to the mounting portion through a bend. The offset portion is substantially parallel to a forward edge of the oven rack.
  • S-bars are mounted to the forward bar approximate slide members of both slides. Similarly, S-bars are also mounted to a rear bar of the oven rack.
  • the offset portion is sized to fit in a receiver 2810 coupled to the slide member.
  • the receiver as illustrated in FIG. 28 is substantially a U shaped cut-out or receiver, in a bracket attached to a web of the slide member.
  • the bracket extends substantially along the length of the slide member, with a corresponding U shaped cut-out, or receiver, a the rear of the bracket.
  • the cut-out at the rear of the bracket faces in the opposing direction, namely rearwardly, compared to the cut-out at the front of the bracket.
  • FIG. 29 illustrates a further view of the mechanism of FIG. 28. As illustrated in FIG.
  • an S-bar is adapted to be coupled to a side by side slide 2902 by way of a receiving bracket 2904.
  • the receiving bracket is somewhat U shaped, with a mounting flange extending from the U shape.
  • the mounting flange is adapted to be welded or otherwise attached to the web of the slide member.
  • the U shape includes a notch or receiver, on one side adapted to receive the offset bar.
  • the present invention provides a rack assembly for an oven and an oven with a rack assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)
  • Drawers Of Furniture (AREA)
  • Electric Ovens (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

L'invention porte sur un système de plaques de four comportant des coulisses à extension totale fixées aux plaques ou grilles et qui peuvent être entièrement extraites du four. Les plaques se placent sur les parois du four, ou les coulisses sont reliées aux grilles le long des parois des coulisses.
EP03763492A 2002-07-10 2003-07-10 Rack à rallonges pour un four Expired - Fee Related EP1532402B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US39520402P 2002-07-10 2002-07-10
US395204P 2002-07-10
US40710202P 2002-08-29 2002-08-29
US407102P 2002-08-29
PCT/US2003/022329 WO2004005820A2 (fr) 2002-07-10 2003-07-10 Four a coulisses

Publications (3)

Publication Number Publication Date
EP1532402A2 true EP1532402A2 (fr) 2005-05-25
EP1532402A4 EP1532402A4 (fr) 2006-02-01
EP1532402B1 EP1532402B1 (fr) 2010-12-22

Family

ID=30118484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03763492A Expired - Fee Related EP1532402B1 (fr) 2002-07-10 2003-07-10 Rack à rallonges pour un four

Country Status (4)

Country Link
EP (1) EP1532402B1 (fr)
DE (1) DE60335466D1 (fr)
TW (1) TWI224184B (fr)
WO (1) WO2004005820A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9107500B2 (en) 2011-08-09 2015-08-18 Schock Metallwerk Gmbh Extraction guide
US9161626B2 (en) 2011-06-17 2015-10-20 Schock Metallwerk Gmbh Drawer guide
EP2719955A3 (fr) * 2012-10-11 2016-08-17 BSH Hausgeräte GmbH Dispositif à glissière pour un support pour produits de cuisson
EP2749817A3 (fr) * 2012-10-11 2017-05-03 BSH Hausgeräte GmbH Dispositif à glissière pour un support de cuisson et agencement doté d'un tel dispositif à glissière et d'un support pour produits de cuisson
US9693626B2 (en) 2011-06-17 2017-07-04 Schock Metallwerk Gmbh Drawer guide and method for mounting a drawer to a carcass

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DE10330348B4 (de) * 2003-07-05 2007-01-25 Accuride International Gmbh Gargutträgerauszugsystem
DE102004019103A1 (de) * 2004-04-20 2005-11-17 BSH Bosch und Siemens Hausgeräte GmbH Auszugssystem für ein Haushaltsgerät
DE102005014421A1 (de) * 2005-03-24 2006-10-05 Electrolux Home Products Corporation N.V. Auszugssystem für einen Garofen
DE102005028674A1 (de) 2005-06-21 2006-12-28 BSH Bosch und Siemens Hausgeräte GmbH Teleskopauszugsvorrichtung
TR200706719A2 (tr) * 2007-09-28 2009-04-21 Vestel Beyaz E�Ya Sanay� Ve T�Caret A.�. Teleskopik ray sistemi.
KR20140104514A (ko) * 2013-02-18 2014-08-29 삼성전자주식회사 조리기구
US20230243515A1 (en) * 2022-02-01 2023-08-03 Ssw Advanced Technologies, Llc Oven rack assemblies and methods of use

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EP0091666A2 (fr) * 1982-04-13 1983-10-19 INDUSTRIE ZANUSSI S.p.A. Support pour tablettes en grilles amovibles
DE3628763A1 (de) * 1986-08-25 1988-03-03 Bosch Siemens Hausgeraete Vorrichtung in backoefen zur auflage von garguttraegern
US6148813A (en) * 1999-08-17 2000-11-21 Maytag Corporation Telescoping oven rack assembly
DE19949239A1 (de) * 1999-10-13 2001-04-26 Aeg Hausgeraete Gmbh Auszugsvorrichtung für Gargutträger im Garraum von Garöfen
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US20040069299A1 (en) * 2002-07-10 2004-04-15 Baoloc Le Oven rack with slide assembly
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EP0091666A2 (fr) * 1982-04-13 1983-10-19 INDUSTRIE ZANUSSI S.p.A. Support pour tablettes en grilles amovibles
DE3628763A1 (de) * 1986-08-25 1988-03-03 Bosch Siemens Hausgeraete Vorrichtung in backoefen zur auflage von garguttraegern
US6148813A (en) * 1999-08-17 2000-11-21 Maytag Corporation Telescoping oven rack assembly
DE19949239A1 (de) * 1999-10-13 2001-04-26 Aeg Hausgeraete Gmbh Auszugsvorrichtung für Gargutträger im Garraum von Garöfen
DE10116471A1 (de) * 2001-04-03 2002-10-24 Amica Wronki S A Aufhängungseinheit für Einschübe für einen Backofen
US20040069299A1 (en) * 2002-07-10 2004-04-15 Baoloc Le Oven rack with slide assembly
US20040112371A1 (en) * 2002-07-10 2004-06-17 Baoloc Le Oven assembly with slides

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9161626B2 (en) 2011-06-17 2015-10-20 Schock Metallwerk Gmbh Drawer guide
US9693626B2 (en) 2011-06-17 2017-07-04 Schock Metallwerk Gmbh Drawer guide and method for mounting a drawer to a carcass
US9107500B2 (en) 2011-08-09 2015-08-18 Schock Metallwerk Gmbh Extraction guide
EP2719955A3 (fr) * 2012-10-11 2016-08-17 BSH Hausgeräte GmbH Dispositif à glissière pour un support pour produits de cuisson
EP2749817A3 (fr) * 2012-10-11 2017-05-03 BSH Hausgeräte GmbH Dispositif à glissière pour un support de cuisson et agencement doté d'un tel dispositif à glissière et d'un support pour produits de cuisson

Also Published As

Publication number Publication date
EP1532402A4 (fr) 2006-02-01
TW200403412A (en) 2004-03-01
TWI224184B (en) 2004-11-21
WO2004005820A2 (fr) 2004-01-15
EP1532402B1 (fr) 2010-12-22
DE60335466D1 (de) 2011-02-03
WO2004005820A3 (fr) 2004-03-04

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