JPH027376Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] The invention forms an opening in the front plate of the casing,
The present invention relates to a cooking appliance such as a toaster oven or a fish griller, in which a door for opening and closing the opening is rotatably attached to the front plate.

[Technical background of the invention]

A conventional example is shown in FIGS. 1 and 2. In the figure, 1 is a casing formed by attaching end plates 3 to both sides of a main body 2, 4 is an opening formed integrally with a hole in the front plate 5 of the casing 1, and 6 is an opening 4.
A door 7 is a pivot shaft passing through the lower edge of the door 6 to be opened and closed. The door 6 is designed to be rotated around a pivot 7. In addition, to install the door 6, first, one end of the pivot shaft 7 is passed through the lower part of one side of the door 6, and is fully inserted into the bearing hole (not shown) of the opening 4, and then the pivot shaft 7 is returned in the opposite direction. The end portion is passed through the lower part of the other side of the door 6 and inserted into another bearing hole (not shown) of the opening 4, so that both ends of the pivot shaft 7 are inserted into the bearing hole, and then the pivot shaft 7 is inserted into the bearing hole. A retaining ring (not shown) is attached to 7 to prevent movement in the axial direction, and the installation is completed.

[Problems with background technology]

As described above, since the conventional mounting structure for the door 6 requires parts such as a pivot and a retaining ring, there are disadvantages in that the number of parts is large and it is troublesome to assemble. In addition, the horizontal lower edge 5a of the opening 4 is designed to allow the lower edge of the door 6 to rotate around the axis 7 (the two-dot chain line in FIG. 2 indicates the rotation locus). is provided at a distance from the lower edge 5a. Therefore, since a fairly large gap A is formed between the door 6 and the lower edge 5a in the closed state, there is a drawback that the sealing degree is low and the thermal efficiency is poor.

[Purpose of invention]

Therefore, the purpose of the present invention is to simplify the mounting structure and assembly of the door, and to
An object of the present invention is to provide a cooking device that can improve thermal efficiency.

[Summary of the idea]

In other words, in the cooking device of the present invention, a hinge hole is provided at the horizontal lower edge of the opening formed integrally with the front plate of the casing, and the hinge hole is located continuously on the rear side of the hole, and The stopper part that opens the opening is formed by bulging upward, and the door that opens and closes the opening is formed in substantially the same shape as the opening, and a metal hinge projection piece is integrally protruded from the lower edge of the door that opens and closes the opening. and insert this protrusion into the hinge hole,
The hinge protrusion is characterized in that it has a retaining portion bent on the back side of the horizontal lower edge.

According to this feature, the door can be opened and closed by rotating the hinge projecting piece about the hinge hole, using these parts as a pivot. The forward movement of the lower edge of the door when the door is closed can be prevented by the front edge of the hinge hole and the retainer, and the downward movement of the door when the door is open can be prevented by the stopper. This can be prevented by the locking part, and the locking part can prevent the door from coming off forward when the door is open. Since the door mounting structure is made up of parts of the door and the front plate, it is possible to omit pivots, retaining rings, etc. that were conventionally necessary.
This simplifies the structure and assembly, and reduces manufacturing costs. Furthermore, since the pivot point of the door is located at the horizontal lower edge of the opening, it is possible to reduce or eliminate the gap between the horizontal lower edge of the opening and the door when the door is open, thereby improving thermal efficiency. You can improve.

[Example of idea]

An embodiment of the present invention will be described below with reference to a toaster oven shown in FIGS. 3 to 9.

In the figure, 11 is a cooking device inner case having a cooking chamber 12.
Parts such as a heater 13, a loading net 14 that is movable in the front-back direction, and a spring 15 for returning the net are attached to this. Each surface of the cooking device inner case 11 except the bottom surface is covered with a casing 16. In this embodiment, the casing 16 is constructed from two metal case components 17 and 18. In FIG. 6, 19, 20, and 21 are screws for assembly, 22 is a leg through which the screw 21 passes, 23 is an inward projecting edge, and 24 is an outward projecting edge that fits into the inner surface of the inward projecting edge 23. , 25, 26, and 27 are screw receiving portions, respectively.

The case structure 17 has a front plate part 28,
An opening 29 integrally formed by making a rectangular hole in the front plate part 28 is formed to face the cooking chamber 12, and an operating time slot for the heater 13 is located at a position away from the opening 29. A timer 30 is attached to set the . and opening 29
A horizontal lower edge 31 is provided with hinge holes 32, for example, at two locations on the left and right, and a stopper portion 33 is formed to bulge upward and is located continuously on the rear side of the hole 32. . Therefore, both the front and rear surfaces of the stopper portion 33 are open.

The front plate portion 28 has a door 34 that opens and closes the opening 29.
is rotatably mounted. The door 34, which has approximately the same shape as the opening 29, has a front frame 35 and a rear frame 36, both of which are made of metal and are connected to each other.
It is formed by supporting the peripheral edge of a see-through plate 37 made of glass or the like. A projecting edge portion 38 is provided on the lower edge of one of the frames 35, 36, for example, the rear frame 36, over approximately the entire length in the longitudinal direction. 3
2 and the hinge protrusion 3 corresponding to the stopper part 33.
9 is integrally provided in a protruding manner. This hinge protrusion 39
has a retaining portion 40'. This retaining part 4
0' is formed by bending the bending portion 40 provided on the hinge protrusion 39, and the hinge protrusion 40 in a state before the retaining portion 40' is formed.
The width B is slightly smaller than the width C of the hinge hole 32 and the stopper portion 33, as shown in FIG.

The door 34 is attached to the front plate portion 28 before the casing 16 is assembled, and the attachment is performed as follows. First, with the door 34 in a horizontal state, the hinge protrusion 39 is inserted into the inner surface of the stopper part 33. Next, after raising the door 34 so that the hinge protrusion 39 is inserted into the hinge hole 32, the portion 40 to be bent is bent at a substantially right angle to form a retaining portion 40'. The installation of the door 34 is thus completed.

The door 34 attached in this manner is opened and closed by rotating about the contact portion shown by D in FIGS. 5 and 7 as a fulcrum.

In addition, 41 in FIG. 6 and FIG. 7 is the loading net 13.
This is a link connecting the door 34 and the door 34.

Further, in this embodiment, the projecting edge portion 38 is
9 has an escape groove 38a so as to form a slight gap E with the lower edge 31 in the closed state, and only the hinge protrusion 39 partially contacts the lower edge 29. Even if the lower edge 29 is slightly deformed, the door 34 can be opened and closed smoothly.

Although the above-mentioned embodiment is constructed as described above, in the present invention, the bent portion 40 may be formed at a portion beyond this by cutting grooves on both sides of the tip edge of the hinge protrusion 39. In this case, the stopper part 33 may be bent upward so as to come into contact with the rear end surface of the stopper part 33 to form a retaining part 40'. Further, the side of the stopper portion 33 opposite to the hinge hole 32 may be closed. Furthermore, if the hinge hole 32 and the stopper part 33 are to be long, only one of them may be required. In addition, when implementing this invention,
Unless contrary to the gist of the invention, the specific structure, shape, position, material, etc. of the casing, front plate, opening and its lower edge, hinge hole, stopper, door, hinge protrusion, retainer, etc. Of course, the present invention is not limited to the one embodiment described above, and can be implemented in various ways.

[Effects of the invention] Since the present invention explained above has the structure described in the above-mentioned utility model registration claims, the door can be made with a simple structure by omitting the conventionally required pivots, retaining rings, etc. It can be rotatably attached to the front plate of the casing, and has the effect of simplifying the work of installing the door, and there is a space between the horizontal lower edge of the opening and the door that allows the door to rotate. Since it does not require a large gap for cooling, it has the effect of improving thermal efficiency.

[Brief explanation of the drawing]

1 and 2 show a conventional example, with FIG. 1 being a perspective view and FIG. 2 being a partial sectional view. 3 to 9 show an embodiment of the present invention, in which FIG. 3 is a perspective view, FIG. 4 is an enlarged front view of the middle part of FIG.
The figures are a sectional view taken along the line - in Fig. 4, Fig. 6 is an exploded perspective view, Fig. 7 is a partial perspective view, Fig. 8 is a back view showing a part of the door, and Fig. 9 is a sectional view of the door. It is an exploded perspective view of the middle part of the figure. 16...Casing, 28...Front plate part, 29...
...Opening, 32...Hinge hole, 33...Stopper part, 34...Door, 38...Protruding edge part, 39...Hinge protrusion piece, 40'...Retaining part.

Claims (1)

[Scope of utility model registration request] A cooking appliance in which a hole is formed in the front plate part of the casing to integrally form an opening, and a door formed in substantially the same shape as the opening and for opening and closing the opening is rotatably attached to the front plate part, A hinge hole is provided at the horizontal lower edge of the opening, and a stopper portion that is located continuously on the rear side of this hole and has an open front side is formed to bulge upward, and A metal hinge protrusion is integrally provided on the lower edge of the door, and this protrusion is inserted into the hinge hole, and this hinge protrusion is bent on the back side of the horizontal lower edge. A cooking appliance characterized by having a slip-out prevention part.