JPH0134008Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a door attachment/detachment structure that is implemented in a cooking appliance such as a toaster oven and allows a door connected to a door arm to be attached and detached independently.

[Technical background of the invention]

A conventional example is shown in FIGS. 1 and 2.
In the figure, 1 is a cooking device housing formed by assembling a plurality of housing components 2 and 3, 4 is an opening formed in the front plate 5 of the housing 1, 6 is a door that opens and closes the opening 4, and 7 is a door. 6 is a pivot passing through the lower edge of the door 6; 8 is a retaining ring for stopping the pivot 7 from moving in the axial direction; 9 is a door arm whose front end is rotatably connected to both side edges of the door 6; The other end is connected to the net and is always urged backward by a spring (not shown).

Conventionally, the door 6 for the front plate portion 5
In addition, the removal of the door 6 and the door arm 9 are not considered, and the installation of the door 6 to the front panel 5 and the connection of the door 6 to the door arm 9 are not considered. , all of which were performed with the housing component 3 removed.

[Problems with background technology]

By the way, the door 6 may be replaced due to damage or deformation during assembly, deformation or damage during use, or the like. However, conventionally, when replacing the door 6, the cooker housing 1 had to be disassembled, which was troublesome. In addition, oil and fat, etc. adhere to the back surface of the door 6, but there is a problem in that cleaning thereof is limited to wiping.

[Purpose of invention]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a cooking device door mounting structure that allows for easy replacement of the door and improves cleaning performance.

[Summary of the idea]

That is, in the cooking device door mounting structure according to the present invention, a door for opening and closing an opening formed in the front plate portion of the cooking device housing is provided to be detachable from the front side of the front plate portion. The casing is provided with a plate that is connected to the door and is passed through by a door arm that is biased backward by a spring, and the door arm passes through a penetration portion of the door arm that is provided in the plate. It is formed of an arm guide hole, and a holding hole that is connected to one end of the guide hole and has a slit shape that is narrower than the arm guide hole and that the door arm can pass through when the door is attached or detached. When the door arm is passed through the holding hole, it is caught on the edge of the holding hole from the front side of the plate, and when the door arm is passed through the arm guide hole, it is caught on the edge of the holding hole from the front side of the plate. A holding protrusion large enough to pass through the guide hole is provided, and a pivot portion having a substantially rectangular cross section is provided at the edge of the door, and an annular pivot portion formed at the front end of the door arm is attached to the pivot portion. A fitting part is rotatably fitted, and when the door arm is hooked and held on the plate body, the fitting part is opposed to a surface along the thickness direction of the pivot part, and the pivot part is connected to the fitting part. It is characterized by the provision of a passageway that allows entry and exit from the department.

According to the cooker having this feature, when the door is removed from the front plate, the holding protrusion of the door arm is positioned in front of the plate by moving the door, and then the door arm is moved from the front plate. By penetrating the holding hole connected to the arm guide hole, the door arm, which is biased rearward by the spring, is moved rearward. Then, the holding protrusion of the door arm catches on the edge of the holding hole from the front side of the plate, and this engagement allows the door arm to be held on the plate.

After that, by moving the door along the long side of the rectangular cross section of the pivot part, the pivot part is moved out of the fitting part of the door arm through the passage hole of the door arm, and the door is removed from the door arm. It can be removed. Through such a procedure, the door can be removed from the front panel and the door arm from the front side of the cooking appliance housing. Note that even if the door is removed, the door arm, which is biased rearward by a spring, may be pulled backwards in its entirety due to the engagement of its holding protrusion with the front surface of the plate. do not have. Then, the door can be attached to the front plate portion and the door arm, respectively, by following the steps in reverse to the removal procedure described above.

Therefore, the door can be easily replaced without requiring disassembly of the cooker housing. Further, as described above, since the door can be easily attached to and removed from the front side of the front plate and the door arm, the door can be removed and washed when necessary. Therefore, the cleaning efficiency of the door can be improved, and since the door can be removed and the edge of the front plate opening can be cleaned, the cleaning efficiency can also be improved.

Furthermore, there are no restrictions on when to install the door during assembly, and it is possible to choose, for example, to install the door in the final process, so the door can be installed at the most advantageous time for assembly, improving work efficiency. If necessary, it is also possible to do so.

[Example of idea]

An embodiment of the present invention will be described below with reference to FIGS. 3 to 12.

In the figure, reference numeral 11 denotes a cooking device housing, which includes, for example, a metal housing component 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 formed by connecting a metal housing component 14 with a screw or the like using a screw or the like.
This housing 11 has built-in upper and lower heat sources such as quartz tube heaters (not shown), and also houses a mounting net 15 located between the upper and lower heat sources so as to be movable in the front-rear direction. In addition, 16 in FIG. 6 is a plate provided in the cooking device housing 11 to define a cooking chamber, and this is a plate provided in the movement guide groove 17 of the loading net 15.
is provided. The loading net 15 is always pulled rearward by a spring 18.

An opening 19 is formed in the front plate 12 of the cooking device housing 11, and a door 20 for opening and closing the opening 19 is rotatably attached. The door 20 is detachable from the front side of the front plate part 12. The mounting structure of this door 20 is formed as shown in FIGS. 5 to 8.

That is, for example, the horizontal lower edge 19a of the opening 19
is provided with a U-shaped hinge hole 21. Furthermore, an elastically deformable engagement piece 22 that is continuous to the front side with the hinge hole 21 sandwiched therebetween is integrally provided on the lower edge part 19a, and a stopper part 23 that is continuous to the rear side is formed to bulge upward. has been done. Furthermore, a hinge protrusion 25 is protruded from the lower edge of the door 20 and has a forward-facing engagement protrusion 24 that can pass through the engagement piece 22 and can be inserted into and removed from the hinge hole 21 . door 2
0 is rotatably attached to the front plate part 12 by inserting the hinge protrusion 25 into the hinge hole 21, and is attached and detached by the passage of the engagement protrusion 24 due to elastic deformation of the engagement piece 22. It's summery. The stopper portion 23 is provided to prevent the lower edge of the door 20 from moving backward when the opening 19 is closed, and to prevent the door 20 from moving forward and downward when the door 20 is opened. Further, forward drawing of the door 20 in the open state is prevented by the engagement protrusion 24 coming into contact with the engagement piece 22.

Pivot portions 2 are provided at the left and right edges of the door 20, respectively.
6 is provided. This shaft portion 26 is, for example, a door 2
It is integrally formed with the metal door frame 20a of 0,
It has a substantially rectangular cross section. It should be noted that although the substantially rectangular cross section is representatively illustrated in FIGS. 9 and 10, it is of course applicable to flat hexagons, ellipses, and the like. Further, the door 20 is provided with a notch 27 along the long side direction of the pivot portion 26 in the metal glass holding frame 20b. Door arms 28 are connected to these pivot parts 26, respectively.

That is, an annular fitting part 29 is formed at the front end of the door arm 28, and this fitting part 29 is rotatably fitted to the pivot part 26. As shown in FIGS. 9 and 10, the fitting portion 29 is provided with a passage hole 30 that allows the pivot portion 26 to enter and exit. The width A of this passage hole 30 is
It is larger than the thickness B of No. 6 and smaller than the width C of the pivot portion.

Further, the door arm 28 is provided with a holding protrusion 31 consisting of, for example, a protrusion. The rear end of the door arm 28 is connected to the mounting net 15. Therefore, the door arm 28 is urged rearward by the spring 18. Further, the door arm 28 is connected to an arm guide hole 32 provided in the plate body 16.
The guide hole 32 passes through the guide hole 32 and is guided through the guide hole 32 . The arm guide hole 32 is connected to the holding protrusion 3
1 can pass through. In addition, the plate body 16
is a slit-shaped holding hole 33 connected to, for example, the upper end of the arm guide hole 32 and narrower in width than this guide hole 32.
is provided. The door arm 28 can pass through the holding hole 33 when the door 20 is attached or removed, and the width of the hole 33 is formed so narrow that the holding protrusion 31 cannot pass therethrough. In addition, arm guide hole 3
2 and the holding hole 33 are smoothly connected via a tapered portion or the like.

The opening and closing of the door 20 in the cooker of the above embodiment is as follows:
This is accomplished by rotating the door 20 using the contact portion between the hinge hole 21 and the hinge protrusion 25 as a fulcrum. The solid line in FIG. 12 indicates the closed state of the door 20, and the dashed line in FIG. 12 indicates the open state of the door 20. When the door 20 is opened and closed, the door arm 28 passes through the arm guide hole 32, so the holding protrusion 31 of the door arm 28 passes through the arm guide hole 32 without hitting the front surface of the plate 16. At the same time, the pivot portion 26 and the fitting portion 29 are rotated relative to each other.
At this time, a surface 26a along the thickness direction of the pivot portion 26
Even if the door 20 faces the passage opening 30 (see FIG. 10), it is instantaneous and no removal force is applied to the door 20, so the pivot portion 26 and the fitting portion 29 do not disassemble.

In order to remove the door 20 when cleaning the door 20 etc. or replacing the door 20, first the first
After opening the door 20 slightly in the direction of arrow D to the position indicated by the two-dot chain line in Figure 2 so that the upper edge of the door 20 does not touch the upper edge of the opening 19, open the door 2 in the direction of arrow E in Figure 12.
Raise 0. Then, the engagement protrusion 24 of the hinge protrusion 25 pushes up the engagement piece 22. by the way,
Since the engaging piece 22 is elastically deformable, it is elastically deformed in the direction of arrow F in FIG. It will be returned to its original position. That is, the door 20 is removed from the front plate section 12. Along with this, due to the above movement of the door 20,
With the holding protrusion 31 positioned forward of the plate 16, the interlocking arm 28 is pulled up from the arm guide hole 32 into the holding hole 33. Therefore, the interlocking arm 28 which is biased rearward by the spring 18
, the holding protrusion 31 is attached to the plate 1 as shown in FIG.
By hooking onto the hole edge of the holding hole 33 from the front side of the holding hole 6, the holding hole 33 is hooked and held without being pulled backward. In this held state of the interlocking arm 28, the surface 26a of the pivot portion 26 along the thickness direction is exactly opposed to the passage port 30 of the fitting portion 29. Next, the door 20 is moved downward (in the direction of the arrow in FIG. 10). Then, the pivot portion 26 is removed from the passage port 30.

That is, the door 20 can be removed from the front side of the front plate part 12 with respect to the front plate part 12 and the interlocking arm 28 by the above procedure. As can be seen from the above description, this embodiment does not require any tools, so the removal work of the door 20 is extremely easy.

In addition, in order to attach the door 20 to the front plate part 12 and the interlocking arm 28 in the final process of assembling the cooker, after washing and cleaning the door 20, or when replacing a new door 20, the above-mentioned removal procedure must be reversed. You can follow these steps. In this case, the front end side of the interlocking arm 28 is engaged with the holding protrusion 31 and the plate 16,
Of course, it is held in a protruding manner. and,
When the hinge protrusion 25 is engaged with the hinge hole 21, the engagement portion 22 may be elastically deformed in the direction of arrow G in FIG. 5, allowing the hinge protrusion 25 to pass through the engagement protrusion. Needless to say.

Although the above embodiment is configured as described above, in the present invention, the door 20 is attached to the front plate part 12 via a hinge mechanism, and this hinge mechanism is attached to the door 20.
It is attached to the front plate part 12 and can be attached and detached from the front side with decorative screws, etc., or the front plate part 1
There is no problem even if the door 20 can be attached and detached from the front side with a decorative screw or the like to the hinge mechanism attached to the hinge mechanism attached to the hinge mechanism. Further, the holding protrusion 31 may be formed by bending a part of the interlocking arm 28, or may be provided by cutting and raising it. In addition, when implementing this invention,
As long as it does not go against the gist of the invention, the cooker housing, front plate, opening, door, spring, door arm, plate, arm guide hole, holding hole, holding protrusion, pivot, fitting part, passage opening. The specific structure, shape, location, etc.
It goes without saying that the present invention is not limited to the one embodiment described above and can be configured and implemented in various ways.

[Effect of idea]

In the cooker door mounting structure of the present invention described above, the door is provided so as to be detachable from the front of the front panel of the cooker housing to which the door is attached, and is connected to the door and pulled rearward by a spring. Since the door is removably connected to the door arm, the door alone can be attached or detached as needed without requiring disassembly of the cooker housing. Therefore, the door can be replaced, and by removing it, the edge of the opening of the front plate can be easily cleaned.
Moreover, the removed door can be washed completely, making it easy to clean. Furthermore, the door arm penetration portion of the plate body of the cooker casing, through which the door arm biased backward by a spring passes through, is connected to the arm guide hole through which the door arm passes through, and one end of this guide hole. The door arm is provided with a holding hole having a slit shape having a width narrower than the arm guide hole and through which the door arm can pass when the door is attached or removed, and the door arm has a holding hole that is passed through the holding hole when the door is attached or removed. A holding protrusion is provided that is large enough to be caught on the edge of the holding hole from the front side of the plate when the door arm is inserted into the arm guide hole, and to allow the door arm to pass through the arm guide hole when the door arm is inserted into the arm guide hole. , and the edge of the door is provided with a pivot portion having a substantially rectangular cross section, and an annular fitting portion formed at the front end of the door arm is rotatably fitted to the pivot portion, and the fitting The door arm has a structure in which a passage hole is provided in the section, which faces a surface along the thickness direction of the pivot section when the door arm is hooked and held on the plate body, and allows the pivot section to enter and exit. The door can be easily removed without using tools, and when the door is removed, the entire door arm will not be pulled backwards by the tension of the spring, making it easy to attach and detach the door. can be easily done.

[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. Figures 3 to 12 show an embodiment of the present invention, Figure 3 is a perspective view of a toaster oven, Figure 4 is a front view of the middle part of Figure 3, and Figure 5 is shown along the - line in Figure 4. Figure 6 is a partial perspective view, Figure 7 is a plan view showing part of the door, Figure 8 is an exploded perspective view of the middle part of Figure 5, Figures 9 and 10 are the door and 11 is a cross-sectional view showing the relationship between the plate and the door arm, and FIG. 12 is a schematic cross-sectional view for explaining the operation of the door. 11... Cooker housing, 12... Front plate part, 16...
... Plate body, 18 ... Spring, 19 ... Opening, 2
0...door, 21...hinge hole, 22...engaging piece,
23...stopper part, 24...engaging protrusion, 25...
... Hinge protrusion piece, 26 ... Pivotal part, 28 ... Door arm, 29 ... Fitting part, 30 ... Passing port, 31 ...
Holding protrusion, 32... arm guide hole, 33... holding hole.

Claims (1)

[Scope of utility model registration request] An opening is formed in the front plate of the cooking appliance housing, and a door for opening and closing the opening is rotatably attached to the front plate,
In a cooker in which a pair of door arms biased rearward by a spring are connected to the door, the door is detachably attached to the front plate portion from the front side, and the plate body provided on the cooker housing An arm guide hole is provided at one end of the arm guide hole through which the door arm passes, and a holding hole is formed in the shape of a slit narrower in width than the guide hole, and a holding hole through which the door arm can pass when the door is attached or detached is provided at one end of the arm guide hole. is connected to the plate body, and when the door arm is passed through the holding hole, it is caught on the edge of the holding hole from the front side of the plate body, and the door arm is connected to the arm guide hole. A holding protrusion large enough to pass through the guide hole when the door is penetrated is provided, and a pivot portion having a substantially rectangular cross section is provided at the edge of the door, and the front end of the door arm is attached to the pivot portion. An annular fitting part formed in the part is rotatably fitted, and when the door arm is hooked and held on the plate body, the fitting part faces a surface along the thickness direction of the pivot part. A door mounting structure characterized in that a passage opening is provided for allowing entry and exit of the pivot portion.