JPH0248737Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a door for a cooking appliance such as a microwave oven, and particularly relates to an improvement in the fixing structure of the finder glass.

(b) Prior Art Figures 1 and 2 show a conventional fixing structure for a viewfinder glass a of a door for a cooking appliance.
b is the main frame of the door, c and d are the holding frames for the finder glass a, and the holding frame c is fixed to the main frame b in advance. Attach one end and finally presser frame d
are fixed with screws e to complete the installation of the viewfinder glass a. Shaking of the viewfinder glass a is prevented by a cut-and-raised piece f provided on the main frame b and a separately interposed flexible member g. However, both in the case of the above-mentioned cut-and-raised piece f and in the case of the flexible material g, since the bending force is utilized, they cannot be made very small, and are visible through the viewfinder glass a from the outside. This looks bad, so generally a pattern is printed on the viewfinder glass a to cover it up, but this is disadvantageous in terms of cost and also limits the design. In addition, those that utilize deflection also have a problem in that the pressing force decreases significantly over time.

(c) Purpose of the invention This invention was created in view of the above circumstances.
It is an object of the present invention to provide a door for a cooking appliance that is superior in terms of cost and design, in which a pressing and fixing member for a finder glass is not visible through the finder glass.

(d) Structure of the device In this device, the finder glass is fixed by pressure using a cylindrical packing material attached to the main frame. , in a cooking appliance door that is attached with the periphery sandwiched between a main frame and a holding frame of a finder glass attached to the outer periphery of the main frame, the main frame's finder glass is covered by the holding frame; A notch with a protruding locking piece is formed at the position,
A cylindrical packing material is rotatably inserted through the locking piece, and a finder glass is press-fixed by the packing material.

(E) Examples Examples of this invention will be described in detail below with reference to the drawings, but this invention is not limited to the following examples.

FIG. 3 shows the overall structure of the cooking appliance door, in which a chamber side glass 2 is provided on the inner surface and a finder glass 3 is provided on the outer surface. The inside glass 2 is the main frame 4
attached to the inner frame 5 attached to the inner surface of the
The viewfinder glass 3 is attached with its peripheral edge sandwiched between the main frame 4 and respective holding frames 6 and 7 attached to the outer peripheral edge of the main frame 4. The installation procedure is also similar to the conventional example.

As shown in FIG. 4, an H-shaped notch 8 is provided on the clamping surface of the finder glass 3 that faces the holding frames 6 and 7 of the main frame 4. A cylindrical packing material 10 (synthetic resin) made of an elastic material (for example, silicone rubber) is attached using the locking pieces 9, 9 that protrude opposite each other. The finder glass 3 is press-fixed to this packing material 10 to prevent rattling.

Further, when the finder glass 3 is installed between the main frame 4 and the holding frames 6 and 7, the finder glass 3 must move on the main frame 4 in a pressed state, but the packing material 10 is attached to the locking piece 9. , 9 allows for smooth movement and less damage to the packing material. Fourth
In the figure, the A dimension of the presser frame 6 is about 6 to 7 mm, the packing material 10 is about 3 mm in diameter, and the B dimension in the figure is about 4 to 5 mm. The packing material 10 is not visible. Two packing materials 10 may be used on the upper and lower sides of both sides, and may also be used on each orthogonal side of the door as appropriate. Further, the structure of the mounting portion of the packing material 10 may be arbitrary. For example, a U-shaped notch with a locking piece protruding from one direction may be provided.

(f) Effects of the invention This invention is structured as described above, so
When installing the finder glass as the main frame between the presser frame, the work is smoother, the packing material is less likely to be damaged, and the finder glass is always firmly pressed and fixed, and the packing material is not visible from the outside. , a door for cooking appliances that is excellent both in terms of cost and design can be obtained.

[Brief explanation of the drawing]

1 and 2 are partially omitted cross-sectional views showing a conventional example of a door for cooking appliances, FIG. 3 is a partially omitted cross-sectional view of an embodiment of the door for cooking appliances of this invention, and FIG. It is an enlarged perspective view of the same main part. DESCRIPTION OF SYMBOLS 1...Cooking equipment door, 3...Finder glass, 4...Main frame, 6, 7...Finder glass holding frame, 10...Cylindrical packing material, 8...
Notch portion, 9...Locking piece.

Claims (1)

[Scope of utility model registration request] A viewfinder glass allows you to see through the inside of the refrigerator.
In a cooking appliance door that is installed with the periphery sandwiched between the main frame and the holding frame of the finder glass attached to the outer periphery of the main frame, the holding frame of the finder glass clamping surface of the main frame A notch from which a locking piece protrudes is formed in the covered position, and a cylindrical packing material is rotatably inserted into the locking piece, and the finder glass is pressed and fixed by the packing material. Door for cooking equipment.