MXPA97009944A - Appliance to assemble an external panel for microon oven - Google Patents

Abstract

An outer panel assembly apparatus is provided for a microwave oven whereby no additional process occurs when the adjusting screws are used, a simpler assembly and disassembly process is provided during a repair and production of products to improve the productivity and for an effective repair. This invention provides an external panel assembly apparatus for a microwave oven in which a rear panel and an outer panel can be assembled or separated from one another, characterized in that the rear panel and the outer panel are assembled by a plurality of fasteners, each fastener being narrower in the diameter of these fasteners by the resilient force of the fastener when the fastener passes through the through holes of the fastener and is wider again after passing through the through holes of the fastener.

Description

APPLIANCE TO ASSEMBLE AN EXTERNAL PANEL FOR MICROWAVE OVEN BACKGROUND OF THE INVENTION FIELD OF THE INVENTION The present invention relates to an apparatus for assembling an external panel for a microwave oven and in particular with an apparatus for assembling an external panel for a microwave oven by means of which an easy and simple assembly and a separation between the rear panel and the panel External during a repair or production of the product is provided to improve the productivity and effective assembly procedure thereof.

DESCRIPTION OF THE PREVIOUS TECHNIQUE A conventional microwave oven as illustrated in Figures 1 and 3, a cooking chamber 60 of a constant space prepared for cooking food thereon having a cavity 10, a front panel 20, a rear panel 30 and an outer panel 50 The microwave oven also has a turntable 70 placed on the floor of the cooking chamber 60. The turntable 70 is used to rotate the food (for example, an object to be cooked by means of heat) placed on the turntable. In addition, the microwave oven has a door 80 provided for opening and closing the cooking chamber 60 and a control unit 90 provided for setting the types of cooking function or for operating the magnetron (not shown), and other components. The flanges 31 horizontally extended in relation to the plane of the rear panel 30 are provided in an upper portion and both side walls of the rear panel 30 for joining them intimately with the rear portion of the outer panel 50 with respect to the upper surface and both lateral surfaces of the outer panel 50. There are a plurality of five screw holes 100, each located at a constant distance, ie three holes in the upper area of the rear panel 30 and two holes in the lower portion of both side walls thereof, respectively , in such a way that the plurality of adjustment screws 100 through the external panel 50 are screwed into those holes formed by the burr process. Other flanges 51 extend vertically relative to the plane of the rear panel 30 are located in the upper rear portion and in both side walls of the outer panel 50 to be joined together with the rear portion of the rear panel 30 with respect to the upper surface and both surfaces rear panel sides 30. There are a plurality of screw holes 52 in an upper area and both side walls of the flange 51, such that a plurality of screw bolts 100 pass through and are screwed into these holes . In order to activate the microwave oven mentioned in the above, a user opens the door 80 to place the food on the turntable 70 and then closes the door 80. Subsequently, when a user sets the type of cooking function in the unit of control 90, the turntable, to which electric power is supplied, begins to rotate in a direction to a microwave energy of 2.45 GHz generated by a magnetron (not shown). The generated microwaves are radiated to the food on the turntable through a waveguide (not shown), where the conversion of heat energy into the food as a dielectric material is caused by the microwave energy. When assembling or disassembling the rear panel 30 and the outer panel 50 for repair or production of products, a plurality of adjusting screws 100 pass through a plurality of screw holes 52 formed in the outer panel 50 and screwed to a plurality of screws. adjustment screws 32 formed on the rear panel 30. Thus, there is a problem with conventional microwave ovens since the microwave oven requires burr work to form the plurality of screw holes to be able to use the plurality of screws of Adjustment 100, resulting in an additional cost caused by the burr process, as well as the reduction of productivity due to the inconvenient assembly and disassembly procedure.

B REVE DESCRI PTION OF THE I NVENTION Therefore, it is an object of the present invention to provide an outer panel assembly apparatus for a microwave oven through which an additional process may occur which is not necessary when the adjusting screws are used, an assembly and disassembly process more Simple during repair or production of products is provided to improve productivity and for effective repair. To achieve the above objectives, an assembly apparatus is provided for the rear panel for the microwave oven in which a rear panel and an outer panel can be assembled or separated from one another, characterized in that the rear panel and the other outer panel they are assembled by a plurality of fasteners, each fastener being narrower in the diameter thereof by the resilient force of the fastener when the fastener passes through the fastener through holes and is wider again after passing through the holes bra interns.

BRIEF DESCRIPTION OF THE DIAMETERS APPENDIXES Figure 1 is a front perspective view of a microwave oven according to the prior art; Figure 2 is a rear perspective view of a microwave oven of Figure 1; Figure 3 is a sectional view of the back panel and an external panel assembled therefrom in accordance with the prior art; Figure 4 is an exploded perspective view of the back panel and an external panel according to the present invention; and Figure 5 is a sectional view of the assembled back panel and the outer panel according to the present invention.

DETAILED DESCRIPTION OF THE MODALI DAD The preferred embodiment of the present invention will be described with reference to the accompanying drawings. In all the drawings similar reference numbers are used for the designation of similar portions. An outer panel assembly apparatus for a microwave oven, in accordance with the present invention, is illustrated in Figures 4 and 5, includes a plurality of through-fastening holes 34, 54, these holes aligning one in the other when the rear panel 30 and the outer panel 50 are assembled one on the other and a plurality of fasteners 200 for coupling the rear panel 30 and the outer panel 50. The coupling of the panels 30 and 50 can be made by means of the fasteners whose hooks they become narrower at an intermediate distance when they pass through the matted and aligned fastener through holes 34, 54 and then become wider again by the resilient force of the hooks.

Such a fastener 200 is provided at one end thereof with a head 200 which joins just the rear surface of the outer panel 50 without further passage through the fastener through hole 54 of the outer panel 50, at the other end thereof with the hooks that are just joined with a front surface of the rear panel 30 after passing through the through holes 34, 54 of the outer panel 50, and in a central portion with a connecting portion 230 for connecting the head 210 and the hooks 220 while the connecting portion 230 is located in the through holes of fastener 34, 54 of both the rear panel 30 and the outer panel 50. Between the end point of the hooks 220 and the center point of the connecting portion 230, a cutting groove 240 is provided which allows the hooks to be made narrower when the hooks 220 pass through the through holes of the fastener 34, 54 of the post panels. outer and outer 30 and 50 and become wider again by the resilient force of the same. . In addition, the fastener 200 can be made of a plastic material for easy cutting which is necessary to separate the outer panel 50 from the back panel 30 when a repair or production of the product is required. Right away, the operation and the effect of the present invention will be described as follows. When the microwave oven is assembled in the production line, the outer panel 50 engages with the rear panel 30 starting from the rear towards the upper portion of the rear panel 30, just as the flange 51 of the outer panel 50 joins justly with the upper area of the rear surface of the rear panel 30, thus the plurality of fastener through holes 54 formed in the outer panel 50 are automatically aligned with the holes 34 of the rear panel 30. With two panels 30 and 40 coupled one with the other and the through holes 54 and 34 being unpowered, an operator orientates the hooks of the fastener 200 towards the aligned through holes 54 and 34 and then pushes the fastener 200 to the through holes of fastener 54 and 34. When the fasteners pass through the apertures in the nodes 54 and 34, the cutting slot 240 allows the fastener 200 to be smaller in diameter, whereby the fastener 200 can be easily inserted. in the holes 54 and then 34. After the insertion of the fastener 200 is completed, the initial diameter of the hooks is recovered by the resilient force of the hooks as shown in Figure 5. At this time, the head of the fastener 200 can be justly joined with the rear surface of the outer panel 50, and the hooks 220 joined with the front surface of the rear panel 30, such that the rear panel 30 and the outer panel 50 are coupled to one another by a plurality of fasteners 200. For a repair of the microwave oven, disassembly of the rear panel 30 and the outer panel 50 is necessary. For this purpose, the operator uses tools, such as clamps, to separate the head 21 0 of the connecting portion 230 by cutting. The operator performs the required repair, and then uses another fastener to assemble two panels 30 and 50 again in accordance with the assembly procedures described in the foregoing. Unlike the conventional microwave oven, which uses set screws, an additional assembly procedure can be omitted according to the present invention which uses a fastener to assemble the outer panel and the back panel of the microwave oven through of perforation and identical fastener through holes, and an easy and simple production and repair of the product is provided.

Claims (3)

RE VIN DICA C J ONES

1 . An assembly device of the outer panel for a microwave oven in which a rear panel and an outer panel can be assembled or separated from one another, characterized in that the rear panel and the outer panel can be assembled by a plurality of fasteners, each The fastener being narrower in the diameter thereof by the resilient force of the fastener when the fastener passes through the fastener through holes and is wider again after passing through the fastener through holes.

2. The apparatus, according to claim 1, characterized in that the plurality of fasteners, respectively comprises: a head formed at the front end of each fastener and to be justly joined with the rear surface of the outer panel without passing through the holes bra fasteners formed on the outer panel; hooks formed in the tail portion of each fastener and to be justly joined with a front surface of the back panel after passing through the matched fastener through holes formed in the back panel and the outer panel; a connecting portion for connecting the head of the hooks and for being placed in the paired through-holes of fastener when these components are assembled; and a cutting slot for allowing the portion between the end point of the hooks and the center point of the connecting portion to be made narrower in the diameter thereof when the hooks pass through the matched fastener through holes and allow that is wider again after passing through the holes.

3. The apparatus according to claim 1, characterized in that the fasteners are made of plastic material for easy separation between the back panel and the outer panel by means of the cutting action. SUMMARY OF THE I NVENTIO N An external panel assembly apparatus is provided for a microwave oven whereby no additional process occurs when using the bolts, a further assembly and disassembly process is provided during a product repair and production process. improve productivity and for an effective repair. This invention provides an external panel assembly apparatus for a microwave oven in which a rear panel and an outer panel can be assembled or separated from one another, characterized in that the rear panel and the outer panel are assembled by a plurality of fasteners, each fastener being narrower in the diameter thereof by the resilient force of the fastener when the fastener passes through the through holes of the fastener and is wider again after passing through the through holes of the fastener.