JPH038892Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cooking device such as a toaster oven.

[Conventional technology]

As shown in Fig. 6, in a conventional cooking device such as a toaster oven, an inner box 2 defining a cooking chamber is attached to the top surface of a bottom plate 1 made of sheet metal, and a front opening of the inner box 2 is framed by a plate made of sheet metal. It has a structure for attaching the front frame 3. The inner box 2 is made up of left and right side plates 4, an upper reflecting plate 5 connecting these side plates, and a lower part of the front and rear reflecting plates 6. As shown in FIG. 7, the front frame 3 is attached to the inner box 2 by attaching the front flanges 4a bent outward at the front ends of the left and right side plates 4.
Slit-like hook holes 7 are provided on the top and bottom of the front frame 3, and hook hooks 8 are integrally provided on the top and bottom of the inner peripheral rear edge of the left and right sides of the front frame 3, and these hook hooks 8 are provided, respectively. After inserting the front frame 3 into the hook hole 7, pull down the front frame 3 to engage the hook hole 7, overlap the outer peripheral rear edge of the lower part of the front frame 3 with the lower surface of the lower reflector 6, and screw it in place. It is being said. In addition, the inner box 2 is covered with an outer box case 9 and an outer box rear plate 10 made of sheet metal, and the front edge 9a of the outer box case 9 is fitted with the rear edge of the outer periphery of the front frame 3. has been done.

[Problem that the invention attempts to solve]

By the way, since the side plate 4 is made of a thin steel plate of about 0.3 to 0.6 mm, the conventional structure described above has the front frame 3 held by the front flange 4a, which is easily deformed around the bent portion 4b shown in FIG. According to the invention, the front frame 3 can easily move back and forth together with the front flange 4a holding it. Therefore, in the past, the attachment strength of the front frame 3 to the inner box 2 was weak.
Therefore, when fitting the front edge 9a of the outer box case 9 into the front frame 3, the front frame 3 moves, making it difficult to work, and also weakening the overall rigidity even after assembly. In addition, the above problem is caused by the hook hole 7.
This problem can be solved by providing the front flange 4a directly near the bent portion 4b, but this is actually impossible because it would make it impossible to secure a contact surface for the door (not shown) that is pivotally attached to the front frame 3.

[Means for solving problems]

This invention consists of left and right side plates, each of which has an outward front flange bent at a substantially right angle at the front end of the main part of the side plate along the front-rear direction, and a reflector plate that connects these left and right side plates. This is implemented in a cooker that has a structure in which a front frame made of sheet metal is attached to a shaped inner box made of sheet metal, and a front frame made of sheet metal is attached to frame the front opening of the inner box. an engaging groove is cut out from the top surface, and a through groove is cut out from the top of the upper part of the front frame at both ends of the upward front flange of the upper part of the reflector that connects to the front flange; A rear edge on the outer peripheral side of the lower part of the front frame is integrally provided on the rear edge with a hook protrusion that is inserted into the through groove from above and is inserted and engaged with the engagement groove from above. The above-mentioned conventional problems are solved by providing an overlapping fixing portion which is superimposed and fixed on the lower front surface of the reflecting plate.

[Effect]

The front frame of the cooker equipped with the above solution is as follows:
The left and right hooking protrusions provided on the upper part of the reflector are engaged from above with the engagement grooves provided in the main parts of the left and right side plates through the through grooves provided in the upward flanges of the reflector, and the outer periphery at the lower part of the front frame. By overlapping and fixing the side rear edge to the reflective plate, it is attached to frame the front opening of the inner box. In this way, the upper part of the front frame was attached to the main part of the side plate, which does not deform in the front-back direction because it is arranged along the front-back direction, instead of using the front flanges where the left and right side plates can easily move. The attachment strength of the front frame to the inner box can be increased without increasing the thickness of the side plates or using special reinforcing members.

〔Example〕

1 in Figures 1 to 5 showing an embodiment of the present invention
Reference numeral 1 denotes an inner box made of sheet metal that forms a cooking chamber 12 with an opening at the front. The inner box 11 includes left and right side plates 13, an upper reflector 14 connecting these side plates 13, a lower front reflector 15, and a lower rear reflector 1.
It is formed from 6. The left and right side plates 13 include side plate main portions 13 that are substantially vertical plate-shaped along the front-rear direction.
a, and a front flange 13b bent outward at a substantially right angle at the front end of the main portion 13a. Furthermore, engagement grooves 17 are cut out from the upper surface of the side plate main portions 13a of the left and right side plates 13, respectively, in the vicinity of the front flange 13b and slightly apart from the flange 13b. Moreover, the upper reflector 1
4 has an upwardly facing front flange 14a which is integrally bent and continues flush with the front flange 13b, and through grooves 18 are formed by cutting out from the upper end at both left and right ends of this flange 14a. There is.

Lower bent edges 13c (see FIG. 3) bent outward at the lower ends of the left and right side plate main parts 13a of the inner box 11 (see FIG. 3) are fixed to the upper surface of a bottom plate 19 made of sheet metal. Further, a front frame 20 made of a sheet metal is attached to the inner plate 11 with the following structure so as to frame the front opening thereof.

In other words, a pair of left and right hook protrusions 21 are integrally provided on the inner rear edge of the upper part of the front frame 20, and a pair of hook protrusions 21 are provided on the outer rear edge of the lower part of the front frame 20 to extend further rearward. overlapping fixing part 22
(See Figure 5). Note that 15a in FIG. 5 indicates the reflector 1 on which the fixing portion 22 overlaps.
These are a plurality of screw receiving portions provided on the lower surface of 5. The hook protrusion 21 is engaged with the engagement groove 17, and in this embodiment, is integrally formed with a flange holding portion 21a that engages with the back surface of the upward front flange 14a. There is. The front frame 20 is first inserted by inserting the root portion of the hook protrusion 21 into the through groove 18 from above, and then into the engagement groove 17 from above to be engaged. . Note that, as a result, the flange holding portion 21a is positioned to engage with or be close to the back surface of the upwardly facing front flange 14a. next,
The entire front frame 20 is rotated slightly rearward around the engaged upper part as described above, and the front flanges 13b, 1 on the inner rear edge thereof are
4a and the front surface of the reflector 15 on the lower front side, and are screwed into the screw receivers 15a through a fixing device such as a screw 23 of the overlapping fixing portion 22 which is already overlapping the lower surface of the reflector 15. As described above, the front frame 20 is attached to the front surface of the inner box 11. Moreover, in the case of this embodiment, in order to further increase the mounting strength of the front frame 20, a hook 24 is provided on the front flange 13a, which is integrally provided on the inner peripheral rear edge of the left and right sides of the front frame 20. It has auxiliary attachment means that are inserted into the provided slit-like hook holes 25 and hooked thereon.

A door 26 for opening and closing the front opening of the inner box 11 is pivotally attached to the front frame 20 mounted in the above manner so as to be openable and closable. Further, the upper surface and left and right side surfaces of the inner box 11 are provided with a sheet metal outer box case 2 whose lower ends on both sides are fixed to the lower surfaces of the left and right ends of the bottom plate 19.
7, and the rear surface of the inner box 11 is covered with an outer case rear plate 28 made of sheet metal that is fitted and attached to the rear edges of the outer case case 27 and the bottom plate 19. The outer box case 27 and the outer box rear plate 28 form an outer box, and the front edge 27a of the outer box case 27 is located on the outer peripheral side of the front frame 20 as shown in FIGS. 1 and 5. It is inserted and fitted inside the rear edge.

In FIGS. 2 and 5, 29 is a saucer stored in a tray storage portion 19a formed in the bottom plate 19 so that it can be taken in and out from the front, and 30 is a grill that is stored in the cooking chamber 12 so as to be movable in the front-rear direction. , 31 is a lever for interlocking the grill 30 and the door 26, 32 is a lever through hole, and 33 is a heater provided in the cooking chamber 12 above and below the grill 30.

In the above configuration, the front frame 20 has left and right hook protrusions 21 provided on its upper part that are fitted from above into the through grooves 19 provided on the upward front flange 14a of the reflection plate 14, and the left and right side plates 13 The front opening of the inner box 11 is fixed by engaging the engagement groove 18 provided in the side plate main part 13a from above, and by overlapping and fixing the overlapping fixing part 22 at the lower part of the front frame 20 to the reflector plate 15. It is attached with a border. Therefore, when attaching the front frame 20 to the inner box 11, the hook protrusions 21 can be engaged from above, making the work easy.

In this way, the upper left and right sides of the front frame 20 are arranged along the front-rear direction instead of the easily movable front flanges 13b of the left and right side plates 13, so that the side plate main portion 1 does not deform in the front-rear direction.
3a, the attachment strength of the front frame 20 to the inner box 11 is increased without increasing the thickness of the side plate 13 or using special reinforcing members, and the front frame 20 is attached to the inner box 11. 11 is prevented from moving in the front-back direction. Therefore, when the front edge 27a of the outer box case 27 is fitted into the front frame 20, movement of the front frame 20 is suppressed, facilitating the installation work of the outer box case 27, and after installing the outer box. The assembly strength (rigidity) of the entire cooker is also improved.

Further, in this embodiment, the upward front flange 1 is held by the flange holding portion 21a of the hook protrusion 21.
Since both the left and right sides of 4a are supported from the back surface, stickiness and deformation of the upward front flange 14a can be prevented, and since the left and right hooks 24 support the front flange 13a from the back surface, stickiness and deformation can be prevented. This can be prevented, and the generation of gaps between the flanges 13b, 14a and the inner peripheral rear edge of the front frame 20 can also be prevented.

Although the above-described embodiment is constructed as described above, in carrying out the present invention, the left and right side plates of the inner box, the reflective plate of the inner box, the front flange of the side plate, and the reflective The specific structure, shape, position, etc. of the upward flange of the plate, the engagement groove, the through groove, the front frame, the hooking protrusion, the flange holding part, etc. are not limited to the above-mentioned example, and may be modified in various ways. Of course, it can be implemented by configuring it as follows.

[Effect of idea]

According to the present invention, which has the gist of the configuration described in the above-mentioned utility model registration claim, the upper part of the front frame is attached to the main part of the left and right side plates of the inner box along the front and back direction. Therefore, there is a practical effect that the attachment strength of the front frame to the inner box and the overall rigidity can be increased.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention,
Fig. 1 is a sectional view taken along the line A-A in Fig. 5, Fig. 2 is a perspective view of the inner box portion showing the state before the front frame is attached;
FIG. 3 is a longitudinal side view of the front frame, FIG. 4 is an exploded perspective view showing parts of the inner box and the front frame, and FIG. 5 is a longitudinal side view of the entire toaster oven. Figures 6 and 7 show a conventional example, Figure 6 is a perspective view of the inner box with the front frame attached, and Figure 7 is an exploded perspective view of parts of the inner box and front frame. It is. 11...Inner box, 13...Side plate, 13a...Main part of side plate, 13b...Front flange, 14, 15, 1
6...Reflector, 14a...Upward front flange,
17... Engagement groove, 18... Through groove, 20... Front frame, 21... Hook protrusion, 21a... Flange holding part, 22... Overlapping fixing part.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) From left and right side plates with outward facing front flanges bent at a substantially right angle at the front ends of the main parts of the side plates along the front-rear direction, and a reflector plate provided by connecting these left and right side plates. In a cooker having a structure in which a front frame made of sheet metal is attached to an inner box made of sheet metal to frame a cooking chamber, and a front frame made of sheet metal is attached to frame the front opening of the inner box, the main part of the side plate has a side plate near the front flange and An engaging groove is cut out from the top surface a little apart from this flange, and a through groove is cut out from the upper end at both ends of the upward facing front flange of the upper part of the reflector that connects to the front flange. A hook protrusion is integrally provided on the inner circumferential rear edge of the upper part, and is inserted into the through groove from above and is engaged with the engagement groove from above, and the lower part of the front frame. A cooking utensil characterized in that an overlapping fixing part is provided on the rear edge of the outer circumferential side of the reflector to overlap and fix to the front lower surface of the reflector. (2) The cooking device as set forth in claim 1 of the utility model registration claim, characterized in that the hooking protrusion integrally has a flange holding portion that engages with the back surface of the upwardly facing front flange of the upper part of the reflector. vessel.