JPH0134009Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The invention is implemented in cooking appliances such as open toasters and fish grillers, and involves the installation of a door that can be attached to and removed from the cooking appliance housing. Regarding structure.

[Prior Art] The door of a conventional toaster oven cannot be removed without disassembling the cooker housing to which it is attached, so replacing it is troublesome and it cannot be removed arbitrarily from the cooker itself. It was inconvenient that the door could not be removed and washed completely. Such problems can be resolved by providing a structure in which the door can be removed without disassembling the cooker housing.

Such a conventional technique is known in Japanese Utility Model Publication No. 43-21266 for a hot storage, although not a toaster oven. In other words, the technology described in this publication is to provide a locking recess on the front surface of the main body with the front surface opening at the lower side of the opening, and to screw the cap so as to surround this recess, and to attach it to the lower end of the door body. A hook-like piece is screwed, and this hook-like piece is engaged and pivoted to the base, so that the door body can be opened and closed with respect to the opening of the main body, and can also be attached to and detached from the main body. be.

[The problem that the idea aims to solve]

However, the technology described in the above publication requires a base fixed to the main body, a hook-shaped piece fixed to the door body, and screws for fixing these, so the number of parts that make up the mounting structure of the door body is Therefore, there is a problem that the assembly is complicated. Moreover, by lifting the door body in a horizontally open state and moving it horizontally forward, the hook-like piece is released from the cap and the door body is removed from the main body. There is no special consideration for maintaining the hooked state with the piece. For this reason,
If the door body lifts up due to the reaction when the door is opened, such as when the door body is opened forcefully, there is a problem that the hook-like piece easily comes off from the base, and the door body is likely to accidentally come off and fall from the main body.

The purpose of the present invention is to obtain a cooking appliance door mounting structure which not only allows the door to be attached and detached but also is easy to assemble and prevents the door from accidentally falling off when the door is opened.

[Means to solve the problem]

In order to achieve the above object, the cooking device door mounting structure according to the present invention is shaped by bending the opening formed in the front plate of the metal cooking device casing with its opening facing backward. , a horizontally long hinge hole is provided at the horizontal lower edge of this opening, and
A slit hole is provided at each of the left and right ends of the hinge hole and faces forward toward the bent portion of the lower edge of the opening, and an elastically deformable engagement formed by these slit holes and the hinge hole is provided. A stopper portion is integrally formed on the lower edge of the opening, and a stopper portion that bulges upwardly on the rear side following the hinge hole is provided integrally on the lower edge of the opening, and the stopper portion is integrally formed on the lower edge of the opening, and On the lower edge of the door that is movably attached to open and close the opening, a hinge protrusion that is inserted into and removed from the hinge hole and comes into contact with the back surface of the stopper part when the door is open is integrally provided downward. This hinge protrusion piece is integrally provided with a forward-facing engagement convex portion having a protruding width larger than the width of the hinge hole.

[Effect]

In the present invention, the door can be attached to the front plate of the cooker housing by inserting the hinge protrusion into the hinge hole and pushing it downward while the door is standing diagonally. That is, by the pushing operation, the engagement protrusion of the hinge protrusion pushes down the edge of the engagement piece on the hinge hole side, and passes through the hinge hole while elastically deforming the engagement piece downward. Immediately after this passage, the engaging piece elastically returns to its original horizontal state, so
The hinge protrusion is located close to and opposed to the upper end of the engagement protrusion to prevent the hinge protrusion from accidentally slipping upward from the hinge hole. In this way, the door can be attached from the front side of the front plate section. Furthermore, the door attached to the front plate can be removed by standing it up diagonally and then pulling it upwards. In other words,
By pulling the door upward, the engagement convex part of the hinge protrusion comes into contact with the edge of the engagement piece on the hinge hole side and pushes it up, elastically deforming the engagement piece upward and closing the hinge. pass through the hole. As a result, the hinge projecting piece is pulled out upward from the hinge hole, and the engaging piece elastically returns to its original state, allowing the door to be removed from the front side of the front plate portion.

In other words, the door can be opened from the front side of the front panel without using any special tools by simply pushing and pulling the door approximately vertically, without requiring disassembly of the cooker housing. Can be attached and detached.

Moreover, the structure on the front plate side for rotatably attaching the door is formed integrally with the lower edge of the opening of the front plate, and the structure on the door side is also formed integrally with the door. Because of this, no special parts are required to attach the door, and therefore it is easy to assemble.

Further, when the door attached as described above is opened, the hinge protrusion comes into contact with the back surface of the stopper portion at the lower edge of the opening. This contact prevents the front edge of the door from endlessly tilting downward due to its own weight, and allows the door to be maintained in a predetermined, substantially horizontal open position. Furthermore, the engagement piece and the engagement protrusion come into contact with each other when the door is open, thereby preventing the door from being pulled out in the forward direction.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

In the figure, reference numeral 11 denotes a cooking device housing, which includes, for example, a metal housing structure 13 that includes a front plate portion 12 and a top plate portion integrally connected to the upper end thereof, and a rear plate portion and left and right side plates integrally connected to both ends thereof. It is constructed by connecting a metal housing structure 14 with a screw or the like using a screw or the like. The housing 11 has built-in upper and lower heat sources such as quartz tube heaters (not shown), and a mounting net 15 located between the upper and lower heat sources is housed so as to be movable in the front-rear direction. In addition, 16 in Figure 3
is a plate having a movement guide groove 17 for the net 15.

An opening 18 is formed in the front plate portion 12 of the cooking device housing 11. This opening 18 is shaped by bending its mouth edge toward the rear. Further, a door 19 for opening and closing the opening 18 is rotatably attached to the front plate portion 12.

The door 19 is formed by sandwiching a transparent plate 22 made of glass or the like between a door frame 20 and a push frame 21 which are both made of metal and are connected to each other. This door 19 is detachably attached to the front plate portion 12 from the front side. The mounting structure of the door 19 is constructed as shown in FIGS. 2 to 5.

In other words, the horizontal lower edge 18a of the opening 18
As shown in FIG. 5, a hinge hole 23 is provided which is longer in the left-right direction than the width in the front-rear direction. A forward-facing slit hole 23a is provided toward the bent portion side of the portion 18a (that is, the front side of the front plate portion 12). These mutually continuous slit holes 23a and hinge holes 23 are U-shaped, and an elastically deformable engagement piece 24 shaped by these is integrally formed on the lower edge 18a. Furthermore, a stopper portion 25 is integrally provided on the lower edge portion 18a of the opening 18 and continues to the rear side of the hinge hole 23.
This stopper portion 25 is formed to bulge upward. Further, a hinge protrusion 27 is integrally provided on the lower edge of the door 19 and is inserted into and removed from the hinge hole 23 and abuts against the back surface of the stopper portion 25 when the door is open. A forward-facing engagement convex portion 26 having a larger projecting width than the width of the hinge hole 23 in the front-rear direction is integrally formed on the hinge protrusion 27 . Moreover,
The engagement convex portion 26 has, for example, a tapered surface such that the protrusion width of the hinge protrusion 27 toward the front end side is small;
It has a triangular shape in side view, which is connected to this and is shaped from a surface that is substantially perpendicular to the hinge protrusion 27 . The door 19 is rotatably attached to the front plate part 12 by inserting the hinge protrusion 27 into the hinge hole 23, and the hinge protrusion 27 is inserted into the hinge hole 23 with elastic deformation of the engagement piece 24. It is designed to be inserted and removed.

Further, a handle 28 is attached to the surface of the upper edge of the door 19, and a holder 29 made of a leaf spring is attached to the back surface of the upper edge of the door 19. This holding body 29
is removably engaged with a holding hole 30 formed in the upper edge 18b of the opening 18, and the engagement between the holding body 29 and the holding hole 30 makes it possible to maintain the closed state of the door.

The opening and closing of the door 19 in the cooker of the above embodiment is as follows:
This is done by rotating the door 19 using the contact portion of the hinge hole 23 with the hinge protrusion 27 as a fulcrum. The solid line in FIG. 7 shows the door closed state, in which case the lower edge of the door 19 is stopped from moving backwards by the stopper portion 25. Furthermore, when the door is open, the hinge protrusion 27 comes into contact with the back surface of the stopper part 25, so this contact prevents the front edge of the door 19 from tilting endlessly downward due to its own weight. Along with
The door 19 can be maintained in a predetermined substantially horizontal open position.
Moreover, when the door 19 is pulled forward in the open state,
This is prevented by the engagement protrusion 26 coming into contact with the engagement piece 24. Therefore, even when the door 19 is opened forcefully, the state of insertion of the hinge protrusion 27 into the hinge hole 23 is maintained, so that the door 19 can be prevented from accidentally coming off from the front plate part 12. .

To remove the door 19 when cleaning the door 19 etc. or replacing the door 19, first open it slightly in the direction of arrow A from the closed state to the position shown by the two-dot chain line in FIG. After making sure that it does not touch the upper edge 18a of the opening 18, the door 19 is pulled up in the direction of arrow B in FIG. Then, the hinge protrusion 27
The engaging convex portion 26 contacts the edge of the engaging piece 24 facing the upper side on the hinge hole 23 side, and pushes up the engaging piece 24. Since this engaging piece 24 is elastically deformable, it is elastically deformed upward as shown by arrow C in FIG. Accordingly, the hinge projecting piece 27 is pulled upward from the hinge hole 23, and immediately after this, the engaging piece 24 is elastically returned to its original position. In this way door 19
can be easily removed from the front side of the front plate portion 12. In addition, in the case of manufacturing, the removed door 19 is completely washed and the horizontal lower edge 1 of the opening 18 is cleaned.
8a etc. can be wiped clean without being obstructed by the door 19.

In addition, in order to attach the door 19 to the front plate 12 in the final process of assembling the cooker, after cleaning the door, or when replacing a new door 19, the hinge protrusion 27 the hinge hole 2
3 and then push down the door 19.
Then, by this pushing operation, the hinge protrusion 2
The engagement convex portion 26 of No. 7 pushes down the edge of the engagement piece 24 on the hinge hole 23 side, and passes through the hinge hole 23 while elastically deforming the engagement piece 24 downward. Immediately after this passage, the engagement piece 24 elastically returns to its original horizontal state and approaches the upper end of the engagement protrusion 26, causing the hinge protrusion 27 to inadvertently move upward from the hinge hole 23. Prevent it from slipping out.
In this way, the door 19 is easily installed, and its installed state is shown in FIG.

Although the above-mentioned embodiment is configured as described above, in the present invention, the engaging protrusion 26 may have an arcuate cross section. Further, when the hinge hole 23 is formed to be considerably long in the left-right direction, a plurality of pairs of notches passing through the rear end may be provided in the hole 23, and the engagement piece 24 may be formed between the pair of notches. moreover,
The hinge protrusion 27 is provided integrally with the door frame 20, but if the door 19 has a holding frame 21 as in this embodiment, the hinge protrusion 27 may be provided integrally with this frame 21. Good too.

In addition, when implementing this invention, unless it is contrary to the gist of the invention, the cooker housing, front plate, opening,
The specific shape, structure, position, etc. of the door, hinge hole, slit hole, engagement piece, stopper part, hinge protrusion, engagement protrusion, etc. are not limited to the one embodiment described above, and may be modified in various ways. Of course, it can be implemented by configuring it as follows.

[Effect of idea]

According to the cooking device door mounting structure of the present invention described above, the hinge hole, slit hole, engagement piece, and stopper part, which are the structures on the front plate side for rotatably mounting the door, are all fixed. It is integrally formed on the lower edge of the opening of the front plate part, and the hinge protrusion and the engagement convex part, which are also the components on the door side, are also integrally formed on the door.
No special parts are required to rotatably attach the door, and therefore assembly is easy. By providing an engagement protrusion on the hinge protrusion, as well as providing a hinge hole and a slit hole to form an engagement piece that is elastically deformed by the engagement protrusion, the hinge protrusion is connected to the hinge hole. The door can be easily attached and detached from the front side of the front panel by simply pushing it downwards or pulling it upwards. Furthermore, an upward-facing stopper part is provided on the rear side of the hinge hole so that the hinge protrusion comes into contact with the back of the stopper part when the door is opened, so even if the door is opened forcefully, this door body will not come into contact. It is possible to prevent the door from coming off and falling from the front plate part, and it is possible to maintain the door at a predetermined substantially horizontal opening degree.

[Brief explanation of the drawing]

1 to 7 show an embodiment of the present invention,
Fig. 1 is a perspective view of the toaster oven, Fig. 2 is a sectional view along the line - in Fig. 1, Fig. 3 is a partial perspective view, Fig. 4 is a plan view showing a part of the door, Fig. 5 The figures are an exploded perspective view of the middle part of FIG. 2, FIG. 6 is an exploded sectional view of the upper door holding structure, and FIG. 7 is a schematic sectional view for explaining the operation of attaching and detaching the door. 11... Cooker housing, 12... Front plate part, 18...
...Opening, 18a...Lower edge, 19...Door, 23...
... Hinge hole, 23a ... Slit hole, 24 ... Engagement piece, 25 ... Stopper part, 26 ... Engagement convex part,
27...Hinge protrusion.

Claims (1)

[Scope of utility model registration request] In a cooker in which an opening is formed in the front plate of a metal cooker housing, and a door for opening and closing the opening is rotatably attached to the front plate, the opening is folded with its mouth facing rearward. The horizontal lower edge of this opening has a hinge hole that is long in the left and right direction, and the lower edge of the opening is bent to connect to both left and right ends of the hinge hole. slit holes facing forward toward the front side, and an elastically deformable engagement piece shaped by these slit holes and the hinge hole is integrally formed at the lower edge of the opening, and is continuous with the hinge hole. A stopper portion that bulges upward to the rear side is integrally provided at the lower edge of the opening, and the lower edge of the door is inserted into and removed from the hinge hole, and when the door is open, the back side of the stopper portion is provided. A door installation characterized in that a hinge protrusion that comes into contact with the hinge protrusion is integrally provided downwardly, and the hinge protrusion is integrally provided with a forward-facing engagement protrusion having a protruding width larger than the width of the hinge hole. structure.