JPS628692B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inner casing that is incorporated into an oven-type cooking device having an opening on the front surface, such as a toaster oven. The heat distribution of the heater, especially the reflection effect, is always kept constant to eliminate variations in heat distribution caused by assembly, and to provide a stable inner casing configuration.

Conventionally, the inner casing of a toaster oven has a heater 1 placed between the left and right frames that stand upright, as shown in Figure 7.
and 2 were held, and a reflecting plate 3 covered them, and this reflecting plate 3 was fixed between left and right frames 4 in a sandwiched manner. Incidentally, for fixation, the bent edge 5 at the end of the reflector and the frame surface were spot welded. Therefore, due to variations in the fixing position of the reflector, the angle of heat reflection of the reflector relative to the food being cooked and the heater will change as shown in the reflected line A when the reflector moves to position 6 as shown in Figure 7, for example. Since the roasting part moves, the roasting distribution of the cooked food cannot be obtained as designed, and it is important to minimize the variation in the fixing position of the reflector plate.

The present invention has been made in view of the above needs, and embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is an external view of a toaster oven according to an embodiment of the present invention. consists of a door 10 that allows the oven chamber to be opened and closed at the front, and the door 10 and the grill 11 are opened and closed by an arm 12 so that the grill 11 located in the oven chamber slides back and forth when the door is opened and closed. connected. The inner casing forming the oven chamber 13 is integrally formed with a right frame 15 and a left frame 14 forming left and right side walls of the oven chamber 13, and a rear reflector plate 16 forming a rear wall. The upper reflective surface and the lower reflective surface constituting this rear reflective plate 16 are not directly connected to the frame and are bent freely, and the central reflective surface has an inwardly inclined reflective surface, that is, the right frame. A joint 17 between the left frame 15 and the left frame 14 is bent so that the upper part thereof has an inclined reflective surface inclined forward. Right frame 15 and left frame 1
4 is formed almost symmetrically, with a notch 18 at the upper end for holding the upper heater, an elongated hole 19 for holding the grill 11 at approximately the center, and a hole 20 for holding the lower heater 29 below. The right frame 1 is further provided with an overhanging portion 21 bent outward from the lower end.
The overhanging portion 21 of No. 5 is formed so that a wiring component such as a wiring stand can be attached thereto. When the above-described integrated product of the right frame 15, left frame 14, and rear reflector plate 16 is developed, it becomes as shown in FIG. 5a. As can be seen in this figure, the frame parts 14 and 15 are joined at a certain angle with respect to the rear reflector part 16, and when folded at the joint part 17, it becomes as shown in Figure 5b. , rear reflector 16
The joint part 17 of the joint part 17 is inclined upward, and the overhang part 21 extends from the left and right frames 14 through the intersection of the partially cut-off lower part bending line 22 and the bending line of the joint part 17. , 15 to protrude toward the rear reflector portion 23 from the line determined to be parallel to the inclination angle of 15. Therefore, the frame overhang portion 21 can be extended rearward from the rear of the inner casing, that is, point A. Now, if this integrated structure is formed so that the rear reflector part 23 and the frame part 24 are horizontal as shown in Fig. 6a, when bent along the two-dot chain line, it will become as shown in Fig. 6b, and the rear part of the inner casing will be That is, B
The frame is regulated so that the frame overhang is forward from the point. As can be seen from the above, if the projecting portion 21 is to be extended rearward in order to stabilize the inner casing, θ may be increased. Therefore, when assembled, the upper part of the rear reflector joint part 17 is tilted forward.

A front plate 30 is fixed to the front lower part of the inner casing wall composed of the right frame, the left frame, and the rear reflecting plate configured in this way to prevent the frames from opening and to adjust the gap between the frames. Further, for almost the same purpose, a bottom plate 31 is fixed to the rear lower part, and a back plate 32 is pivotally supported at an intermediate portion between the front plate and the bottom plate, so that the bottom part of the oven chamber can be opened and closed. A top reflector 25 is located on the upper wall of the oven chamber, and the top reflector is further pressed against the insulator 27 of the upper heater 26 held in the frame upper cutout 18. The angle is fitted to the folded edge 28 of the frame to match the shape of the frame.

As described above, according to the present invention, since the left and right frames and the rear reflector are integrally formed by bending a single metal plate, the heat reflection angle changes due to the change in the positional relationship between the heater and the rear reflector. As a result, the roasting distribution of the cooked product as designed can be obtained.

In addition, the rear ends of the protruding parts bent outward at the lower ends of the left and right frames are made to protrude rearward from the ridge line between the frame and the central reflective surface of the rear reflector, so that the rear Even if there is an impact such as falling with the board facing down, the rearward protruding part will receive the impact, and as a result, deformation etc. will not have a negative effect on the rear reflector, resulting in a change in the heat reflection angle. Since the structure of the inner casing is stabilized, it is possible to obtain a stabilized structure of the inner casing. Furthermore, the rear protrusion of the overhang can reliably prevent the inner casing from falling backward during assembly.

In the embodiment, the rear surface of the reflector was integrated with the right and left sides of the frame, but the effect is the same with any part of the reflector, for example 25 in FIG. 4, and this is not intended to be limiting.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of a toaster oven showing an embodiment of the present invention, FIG. 2 is an external perspective view of the toaster oven with the door open, and FIG. 3 is a perspective view of the inner casing of the toaster oven. Fig. 4 is an exploded perspective view of the inner casing, Fig. 5a is an exploded view of essential parts of the inner casing, Fig. 5b is an assembled side view, and Fig. 6a is for explaining the effects of the present invention. FIG. 6b is an exploded view of the main parts of another inner casing, and FIG. 7 is an assembled side view of the inner casing of a conventional toaster oven. 14...Left frame, 15...Right frame, 1
6... Rear reflector.

Claims (1)

[Claims] 1. In the inner casing of the cooker forming an oven chamber with an opening on the front, a right frame and a left frame each having an outwardly bent overhang at the lower end;
It has a central reflective surface whose central part is inclined inward, and a rear reflective plate having an upper reflective surface and a lower reflective surface that are bent inward from the upper and lower parts of the central reflective surface, and the left and right The frame and the rear reflector are integrally formed by bending a single metal plate, and the rear end of the projecting portion is made to protrude rearward from the ridgeline between the frame and the central reflective surface of the rear reflector. The inner casing of a cooking device.