JPS6310409Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an outer casing of a cooking utensil such as a toaster oven, which is composed of an outer panel and left and right side panels. The purpose of this invention is to provide a casing structure that makes it easy to assemble the outer panels and side panels and has sufficient rigidity even after assembly, and to reduce the number of man-hours.

Conventional cases of cooking utensils such as toaster ovens are often approximately rectangular in shape, and the cases are assembled at spots, resulting in many spot welding defects and low welding current. It was difficult to manage. Furthermore, unless spot welding or the like is used, it is often very difficult to assemble the side panels and the outer panel, requiring a high degree of skill.

In addition, many outer casings do not have sufficient rigidity when the side panels and outer panels are combined, and in the case of a combination of a roughly circular side panel and outer panel, the edges may come apart like a square side panel. It took time.

This invention solves the above-mentioned drawbacks.
An embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, 1 is an outer casing, and 2 is a door that opens and closes an opening for taking food in and out. 3 is a handle for carrying the outer casing 1. 4 is a leg that supports the main body.

The outer casing 1 is composed of left and right side plates 10 and an outer plate 9. The side plate 10 has a substantially semicircular shape, has a flange portion 18 on the outer circumferential surface over the entire circumference, and has a semicircular shape. A notch 5 is provided at the apex. Further, the bottom part has flat parts at both ends, and each of these flat parts has a mounting hole 6 for the leg 4, and a square hole 7 next to the mounting hole 6. Furthermore, bent protrusions 8 are provided on opposing plates on the outer periphery of the flange portion 18. A chamfered portion 8' is provided at the tip end corner of this protruding portion 8. On the other hand, outer plate 9
has a substantially semicircular cross section, the fitting part with the side plate 10 is a bent edge part 12, and the apex part has a positioning part that engages with a notch part 5 provided at the apex part of the side plate 10. A claw 11 is provided.

When the edge bent portion 12 of the outer plate 9 engages with the flange portion 18 of the side plate 10 and the outer plate 9 comes into close contact with the flange portion 18 of the side plate 10, the outer plate 9 is locked in the square hole 7 on the bottom of the side plate 10. A protruding plate 14 having a fixing claw 13 whose opposite side is tapered is provided on the outer plate 9. Further, in the outer surface portion of the outer plate 9 having a substantially circular cross section, there is a hole 15 in which the door 2 is located, and a protrusion 8 of the flange portion 18 of the side plate 10, which faces the protrusion 8.
A louver hole 16 is provided at one end and has a step so as to protrude inward of the outer panel 9.

Next, the assembly method of this example will be explained.
Assemble the outer panel 9 as shown in Fig. 6, and then use the jig 1.
7, and then the edge bent portion 12 of the outer panel 9.
By engaging the positioning pawl 11 with the notch 5 of the flange portion 18 of the side plate 10 and applying a force in the direction of the arrow a to the side plate 10, the edge bent portion 12 of the outer plate 9 is
is incorporated along the surface of the flange portion 18 of the side plate 10, and furthermore, the chamfered portion 8' of the projection portion 8 of the side plate 10
is in contact with the end face of the louver hole 16 of the outer plate 9, and is positioned and assembled. Figure 7 shows side plate 1
0 is aligned with the positioning pawl 13 provided on the protruding plate 14 of the outer panel 9. In this state, a pin approximately the size of the square hole 7 of the side plate 10 is inserted from above from above. When pressed, the fixing claw 13 of the outer plate 9
is bent, and as shown in FIG. 8, the outer plate 9 and the side plate 10 are locked and fixed.

However, in the above-mentioned state, the fixing claw 13 of the outer plate 9 is
If the protruding plate 14 of the outer plate 9 is not bent more than 10 degrees, it will easily come off when the protruding plate 14 of the outer plate 9 is pulled in the direction of the arrow b in FIG.
The square hole of the outer plate 9 has a 7' shape, and
By forming the shape 3', it is possible to create a structure in which the fixed claw does not come off even if the fixed claw is bent at an insufficient angle and is pulled in the direction of arrow b.

As mentioned above, when the side plate 10 and the outer panel 9 are combined, the side plate 10 is attached to the end surface of the louver hole 16 of the outer panel 9.
The end face of the protrusion 8 provided on the flange 18 of the flange 18 is configured to abut against the end face of the protrusion 8.

As described above, according to the present invention, a flange portion is provided along the outer periphery of a substantially semicircular shape, a notch portion is formed at the apex portion of the flange portion, and flat portions are provided at both ends of the bottom portion. The left and right side plates each have a square hole in each of the flat parts, and a protrusion on the side corresponding to the outer periphery of the flange, and an outer side plate that engages with the outer periphery of the flange of the left and right side plates and has both ends bent. and a positioning pawl that engages with a notch provided in the left and right side plates at the apex of the outer plate, and the projections of the left and right side plates abut on the outer peripheral surface, and the inner side of the outer plate A louver hole is provided that protrudes from the bottom of the left and right side panels, and fixing claws are tapered at the sides that are engaged with the square holes in the flat parts provided at the bottoms of the left and right side panels. When attaching the outer panel to the left and right side panels, the positioning is done smoothly by the engagement of the positioning pawl provided at the apex of each with the notch, and the assembly is easy with the folded outer panel. It is assembled along the flanges of the left and right side plates, and can be fixed by bending the fixing claws of the outer plate that are locked into square holes in the flat parts provided on the bottoms of the left and right side plates. Even if an external force is applied to the left and right side plates later, since the protrusions of the left and right side plates are in contact with the end faces of the louver holes, it is possible to provide an outer casing with sufficient rigidity without wobbling, and it is possible to Since the outer casing can be constructed simply by combining the outer panel and the left and right side panels, the cost can be reduced.

[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 a bottom view of the toaster oven, Fig. 3 is a sectional view taken along line A-A' in Fig. 2, and Fig. 4 is a perspective view of the toaster oven. FIG. 5 is a perspective view of the outer panel of the toaster, FIG. 6 is a side view of the process of assembling the outer panel and side panel, FIG. 7 is a bottom view of the main parts of the toaster oven, and FIG. 8 is a perspective view of the outer panel of the toaster. FIG. 9 is a bottom view showing the assembly process of the main parts, FIG. 9 is a bottom view of the main parts showing another embodiment of the present invention, and FIG. 10 is a side view of the same. 5...Notch, 7...Square hole, 8...Protrusion, 9
... Outer plate, 10 ... Side plate, 11 ... Positioning claw,
12...Edge bending part, 13...Fixing claw, 16...
Louver hole, 18...flange part.

Claims (1)

[Scope of utility model registration request] A flange portion is provided along the outer periphery of the approximately semicircular shape,
A notch is formed at the apex of the flange, a flat part is provided at both ends of the bottom, a square hole is provided in each of the flat parts, and protrusions are formed on opposite sides of the outer periphery of the flange. It has left and right side plates provided, and an outer plate that engages with the outer periphery of the flange portion of the left and right side plates and has both ends bent, and the apex of the outer plate engages with a notch provided in the left and right side plates. A matching positioning pawl is provided, and a louver hole is provided on the outer peripheral surface of which the protruding portions of the left and right side plates abut, protruding inward of the outer plate, and a square hole in a flat portion provided on the bottom of the left and right side plates is provided. An outer casing of a cooking utensil, which is formed by bending fixed claws whose latched sides are tapered to fixedly support an outer plate and left and right side plates.