Patent ES-351180-A1 (ES)
Title: Cabinets for refrigerators and the like
IPC: F25D23/06
Filed: 1968-03-02
Abstract: A cabinet for refrigerators, ice-making equipment, ovens or washing machines comprises edge frame section with parallel outer and inner grooves, an inner body member with its edges located in the inner grooves, panels with their edges located in the outer grooves and foamed material filling the gap between the panels and the body member. As shown in Fig. 2, a U-shaped frame 1, having the cross section shown in Fig. 4, is provided at each side of the cabinet and the edges of panels 4 are inserted in grooves 3 of the frames, said grooves being defined in part by a resilient projection 17 which exerts a clamping action on the panel. The remainder of the external shell comprises a rear wall 8 having flanges 7 which are fitted into grooves 6 of frames 1 (Fig. 5, not shown) and a base 23 consisting of side plates 24 and a plate 25 shaped to correspond to the lower wall 61 of the inner liner 60. The front edges of the liner engage in grooves in a stepped plastics frame member 50, the vertical front edges 51 of which engage in grooves 10 of frame 1. The horizontal front edges of frame 50 and the front edge of plate 25 engage in upper end lower cross-pieces 56, 42 (Fig. 7, not shown). Metal inserts 2 are provided in frames 1 for use with a magnetic door seal, similar inserts being provided in the crosspieces. The top-wall of the refrigerator (Figs. 1 and 8, not shown) comprises a panel having its edges inserted into a grooved frame and has an apertured rear section rearwardly of wall 8. The top wall projects beyond the front of the cabinet and is connected to cross-piece 56 by a member in which supports for the door hinge are provided (Fig. 15, not shown). Tie rods 80 are provided with their ends located in the grooves between projections 5 and 17 of frames 1. The liner is held in position prior to foaming by tapes which encircle the liner and have their ends located in the front limbs of frames 1, or by spacers of pre-formed foam plastic. An evaporator coil of semi-circular cross-section is secured to top, rear and side walls of the liner. The foamable material is introduced through an aperture 71 in rear wall 8 while the cabinet is supported face-downwardly in a mould (Figs. 19 and 20, not shown). The frame member 50 may be omitted and the edges of the liner inserted directly into the appropriate grooves of the frames and cross-pieces. In a modification (Figs. 9 and 11, not shown) the cabinet has two liners forming freezer and storage compartments each provided with an evaporator coil. The coil for the storage compartment is secured only to the rear wall of the liner and condensate formed on the inside of that wall is removed by a gutter (Figs. 13 and 14, not shown) having an outlet to the machinery compartment beneath base 23. The refrigerator door (Fig. 10) comprises a frame 201 having grooves 202, 210 for the reception of panels 203 and 211, and a groove 204 which receives the locating projection 205 of a magnetic door seal. Strengthening members 221 are provided along the top and bottom edges of the frame and the space defined by frame 201 and panels 203, 211 is filled with foamed plastics. A further inner panel 215 is provided, its edges being snap-fitted into groove 213 of frame 201. In the modification of Figs. 16 to 18 (not shown) the evaporator is inserted into the cabinet through an aperture in its rear wall, the edges of the aperture being sealed by preformed foamed insulation. Channels for the refrigerant conduits are provided in the preformed insulation and in the rear wall of the cabinet, the latter channel being covered by a foil strip. A plug formed of spaced sheets with foamed plastic therebetween is provided for the aperture, the outer sheet having projections which are snap-fitted in apertures in the rear wall of the cabinet and the pre-formed insulation. Reference has been directed by the Comptroller to Specification 1,136,975.