JPS6122133A - Door construction of cooking unit - Google Patents

Abstract

PURPOSE:To enable a less expensive manufacturing of cooking unit even if the interior of the cooking chamber is made clear by a method wherein a glass plate is covered with a front door member and an opening of the front door member is made large. CONSTITUTION:A bent piece 29 bent in a direction parallel to a front plate 27 and engagement claws 30 are arranged at the upper one of the upper circumferential frames 28 formed by bending the outer circumference of the front plate 27 rearwardly and both side frames and further an opening 31 with its inner circumferential edge being raised rearwardly is arranged at a central part of the front panel 27. Bent pieces 34 bent forwardly are arranged at an upper central part, both side parts and a lower part of the rear plate 33, and a pressor piece 35 raised from both sides at the upper part of the rear plate 33 is arranged. Both sides of the rear door member 32 are provided with insertion holes 37 through which the engagement claws 30 can be inserted, a glass 38 is fixed between the bent pieces 29 of the rear door member 26 and the raised part of the opening 31, bent pieces 34 of the rear door member 32 and the presser piece 35. This door is arranged at the front opening of the cooking chamber in the cooking unit in such a way as it may be opened or closed through a link shaft 41 through which the rear door member 32 is passed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to the structure of a door for opening and closing a front opening of a cooking chamber of a cooking appliance.

Conventional Structure and Its Problems FIG. 1 shows the door structure of a conventional cooking appliance. In the figure, 1
is the cooking device, 2 is the outer casing of the cooking device 1, and a pair of left and right side plates 3
It is composed of an outer plate 4, etc.

Reference numeral 5 denotes an inner cylindrical body built into the outer casing 2, which is composed of a pair of left and right horizontal plates 6, a reflector (back plate) 7, a bottom plate (not shown), etc., and has an opening on the front. °rug! JLII! It forms a chamber 9. Reference numeral 10 denotes a mesh shelf provided in the cooking chamber 9, and its both sides are inserted into guides 11 provided on the horizontal plate 6 so as to be slidable back and forth. 12 is attached to the front opening of the m-continuous room 9 so that it can be opened and closed/: 17? , 13
are a pair of left and right link fittings that connect both sides of the door 12 and both sides of the net shelf 10. When the door 12 is opened, the net shelf 10 is pulled out forward via the link fittings 13. It has become a precept. Note that heating elements (not shown) are provided above and below the net shelf 10.

Details of the door 12 are shown in FIGS. 2 and 3. In the figure, 1
Reference numeral 4 denotes a back door member, which is constructed by bending the outer periphery of the front plate 15 rearward to form an outer peripheral frame 16, and providing an opening 17 in the center of the front plate 15 with an inner peripheral edge rimming rearward. There is. Reference numeral 18 denotes a back door member, which is bent forward to fit the outer periphery of the back plate 19 into the outer peripheral frame 16 of the back door member 14, and has an opening 20 in the center of the back plate 19 with an inner periphery bordering forward. It is constructed by providing in this case,
The opening 20 of the back plate 19 has a shallow part at the corner, and the rounded part is used as the border of the item. Additionally, some corners are rounded. 21 is the opening 1 of the back door member 14
7 A glass plate interposed and fixed between the edge stand and the inner circumferential surface of the opening 20 of the back door member 18; 22 is a screw that penetrates the upper part of the back door member 14 and the back door member 18 to integrate them; Back door member 14
A handle 23 is attached to the part that protrudes from. In addition, a locking hole and a claw (both not shown) that engage with the locking hole are provided at the lower portions of the back door member 14 and the back door member 18 so as to face each other, and are designed to cooperate with the screw 22. . 24 is a link shaft provided through the a door member 18;
is attached to the front opening of the cooking chamber 9 via this link shaft 24.

However, according to the structure of the door 12 of the conventional cooking appliance 1, the glass plate 21 is held down at the top, bottom, and both sides of the opening 20 of the back door member 18. There was a problem that the strength of the back door member 18 was weakened. Therefore, the openings 17.20 of the front and back door members 14.18 cannot be made large, and the
13! I! The transparent area for viewing the interior of chamber 9 was small. Further, the back door member 18 requires a member having approximately the same size as the back door member 14, which poses a problem of high material costs.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional problems, and aims to provide a door structure for a cooker that allows easy viewing of the inside of the cooking chamber and can be manufactured at low cost. The door structure of the cooker of the invention includes a bent piece and a locking claw that are further bent in a direction parallel to the top plate on the upper and both sides of the outer frame formed by bending the outer periphery of the top plate backwards. At the same time, a back door member is provided in the center of the front plate with an opening whose inner periphery edges rearward, and bending pieces that are bent forward are provided in the upper center and lower part of the back plate, and A holding piece is provided that rises from both sides of the upper part of the back plate, and an am member that fits into the lower part of the back door member and is held by the locking claws of the back door member, and the front member '1' are bent. A door is provided with a glass plate interposed and fixed between the upper bent piece and the holding piece of the back door member, and the door is inserted through the back door member. The door is attached to the front opening of the cooking chamber of the cooker through a link shaft provided so that it can be opened freely.This allows the back door member to have a large opening for easy viewing of the cooking chamber. , the door can be manufactured at low cost.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Components having the same configuration as those shown in FIG. 1 are designated by the same reference numerals, and the description thereof will be omitted.

In Figures 4 to 7, 25 is key 1! l! A door according to the present invention attached to the front opening of the chamber 9 so as to be openable and closable, 26
is the back door member of this vinegar 25, of the outer circumferential frame 28 formed by bending the outer circumference of the front plate 27 backwards, there are bent pieces further bent in a direction parallel to the above-mentioned front plate 27 on the upper and both side outer circumferential frames. 29
It is constructed by providing a locking claw 30 and an opening 31 roughly in the center of the top plate 21 with an inner peripheral edge that edges rearward. 32 is a back door member that fits into the lower part of the back door member 2θ and is held by the locking claw 30 of the back door member 2G. , a bending piece 34 that is bent forward at the lower part, a holding piece 35 rising from both sides of the upper part of the back plate 33, and a bending piece for attaching a link fitting that is further bent backward from both holding pieces 35; 36. Note that a locking pawl insertion hole 3γ into which one of the locking pawls 30 can be inserted is provided on both sides of the back door member 32. A glass plate 39 is interposed and fixed between the curved pieces 29, 1, 3 and the green part of the opening 31 and the upper bent piece 34 and the holding piece 35 of the back door member 32. A handle 40 is attached to the part protruding from the front plate 27 with a screw provided through the upper part of the door 26.A handle 40 is attached to the part protruding from the front plate 27 with a screw provided through the upper part of the door 26. is attached to the front opening of the cooking chamber 9 via this link shaft 41. Reference numeral 42 denotes a spring interposed in the link shaft 41, and the door 2
5 in the closing direction.

With this configuration, the assembly procedure will be described next.

First, the handle 40 is attached to the back door member 26 via the screw 39. Next, a spring 42 is interposed in the back door member 32 or provided through the link shaft 41. Next, the glass plate 38 is inserted between the bent piece 29 of the back door member 26 and the edge of the opening 31, and in this state, the glass plate 38 is supported by the upper bent piece 34 of the back door member 32, And press with the presser piece 35.

Then, the back door member 32 fitted to the lower part of the back door member 26 is bent so as to embrace the locking claw 30 of the back door member 26, thereby completing the locking of the back door member 32. As a result, the front, upper end, and both sides of the glass plate 38 are regulated by the back door member 26, and the lower sides of the rear face and the lower end are regulated by the back door member 32. Therefore, it is securely and firmly fixed.

As described above, according to the configuration of the door 25 in this embodiment, the back door member 32 only needs the material necessary to cover the lower part of the glass plate 38, so it can be manufactured at a lower cost than conventional ones. In addition, since the back door member 26 is configured to cover the glass plate 38, even if the front door member 26 is made thinner, it is reinforced by the strength of the glass plate 38.
It can also be produced cheaply. In addition, the back door member 32 is a glass plate 3
Since only the lower part of the glass plate 8 is supported, the opening 31 of the back door member 26 can be widened regardless of the back door member 32, and the transparent area of the glass plate 3B can be expanded. Therefore, the inside of the cooking chamber 9 can be clearly seen.

Effects of the Invention As described above, according to the present invention, there is no need to worry about the strength even if the opening [1] of the back door member is made wide, and the see-through area of the glass is not reduced by the back door member. It saves space and makes it easier to see inside the cooking chamber. Moreover, since the back door member is reinforced by the glass plate, it can be made thin, and since the back door member only covers the lower part of the glass plate, it can be constructed using less material. Therefore, 1. Doors can be manufactured at low cost.

[Brief explanation of the drawing]

Figures 1 to 3 show a conventional example, where Figure 1 is a perspective view of the overall appearance of the cooker, Figure 2 is a perspective view of the door, and Figure 3 is a sectional view of the same.
4 to 7 show an embodiment of the present invention, FIG. 4 is a perspective view of the overall appearance of the cooker, FIG. 5 is a perspective view of the door, FIG. 6 is a sectional view of the same, and FIG. It is an exploded perspective view. 1... Cooker, 9... Cooking room, 25... Door, 26
...Back door member, 27...Top plate, 28...Outer frame,
29... Bending piece, 30... Locking claw, 31... Frontage, 32... Back door member, 33... Back plate, 34...
bending)', 35...presser, 38...glass plate,
41...Link axis agent Yoshihiro Morimoto 2nd cause 3rd figure 4th engraving 5th figure

Claims (1)

[Claims] 1. The top and both side outer peripheral frames of the outer peripheral frame formed by bending the outer periphery of the top plate backward are further provided with bent pieces and locking claws bent in a direction parallel to the top plate, and the front plate A front door member is provided with an opening whose inner peripheral edge edges rearward in the center of the back plate, and bending pieces that are bent forward are provided in the upper center and lower part of the back plate, and a front door member is provided with an opening whose inner peripheral edge edges rearward. A back door member that is provided with a pressing piece that goes up, and that fits into the lower part of the front door member and is held by a locking claw of the front door member, a bent piece of the front door member, and an opening edge ridge. and a glass plate interposed and fixed between the upper bent piece and the holding piece of the back door member, and the door is connected to the back door member through a link shaft provided through the back door member. The cooking device door is attached to the front opening of the cooking chamber of the cooking device so that it can be opened and closed freely.