JPS6140261Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a pot lid in which a reinforcing ring is provided around the periphery of tempered glass, and is used as a lid for commercial and domestic cooking appliances.

[Conventional technology]

Tempered glass made by hardening exhibits excellent impact resistance against impact from the front or back surface, but is extremely brittle against impact from a cut surface.

On the other hand, pots with tempered glass lids that allow the contents to be seen through are widely used.
Since tempered glass has the above-mentioned properties, measures have been taken to protect the peripheral cut surface.

For example, Japanese Utility Model Publication No. 56-13863 describes a pot lid having a peripheral edge structure as shown in FIG. The lid main body 1 in FIG. 5 is composed of a tempered glass 2 and a reinforcing ring 3, and the peripheral edge of the spherical disk-shaped tempered glass 2 is fitted into the C-shaped reinforcing ring 3. Therefore, at the periphery, there is a space 5 between the front surface 4 of the tempered glass and the inner wall of the reinforcing ring, a space 7 between the end surface 6 of the tempered glass and the inner wall of the reinforcing ring, and a space 7 between the back surface 8 of the tempered glass and the inner wall of the reinforcing ring. A space 9 is formed between the reinforcing ring and the inner wall.

Further, the upper end portion of the reinforcing ring 3 is curled to form an annular portion 10.

A similar pot lid is also described in Japanese Utility Model Publication No. 58-35157.

[Problem that the invention attempts to solve]

When a conventional pot lid, for example the lid main body shown in FIG. 5, receives an impact, the reinforcing ring deforms due to the effect of the spaces 5, 7, and 9 with the reinforcing ring, absorbing the impact, and preventing damage. Although it was excellent in some respects, it also had some drawbacks. That is, the reinforcing ring 3
The upper end is curled, but when this annular part 10 is made, it is gradually curled with a roller, and at that time the upper end 11 of the reinforcing ring
This is because the surface 4 of the tempered glass will be scratched and damaged. Tempered glass is sensitive to small scratches like this, and can easily break from there. Also,
Since the space 9 formed by the back surface 8 of the tempered glass and the inner wall of the reinforcing ring is in contact with the outside (inside the lid), as cooking is repeated, so-called grease such as cooking residue and water scale accumulates, resulting in unsanitary conditions. Also, because this part was in constant contact with the pot, it was prone to denting and spoiled the appearance.

The object of the present invention is to overcome the above-mentioned drawbacks of the prior art and to provide a pot lid that can be fitted onto the surface of tempered glass without damaging it and has a reinforcing ring that does not accumulate grease.

[Means for Solving the Problems] The present invention provides a pot lid consisting of a disc-shaped lid body mainly made of tempered glass and a reinforcing ring that covers the periphery of the lid body, in which the upper tip of the reinforcing ring is chamfered. The gist of the pot lid is that it has a radius, the tip of which is in contact with the surface of the lid body, and the bottom of the reinforcing ring is brought into close contact with the back surface of the lid body.

Hereinafter, the configuration of the present invention will be specifically explained with reference to the drawings.

FIG. 1 is a sectional view of a main part of the present invention, showing a first embodiment, and FIG. 2 similarly shows a second embodiment. FIG. 3 is an overall perspective view, and FIG. 4 is a sectional view thereof. In the figure, a lid main body 1 is composed of a tempered glass 2, a reinforcing ring 3, and a handle 12, and the tempered glass 2 is a gently curved spherical disc with a through hole provided in its center. A handle 12 is fastened to the through hole with a screw 13 from below.

The reinforcing ring 3 is a metal annular member that covers the periphery of the tempered glass 2, and has a substantially C-shaped cross section. If the reinforcing ring 3 is further detailed in cross-section, it can be divided into an upper curved part 14, a vertical central part 15, a lower curved part 16 and a bottom part 17. The upper tip 11 is chamfered on both sides, has radiuses on both sides, and is in contact with the surface 4 of the tempered glass 2. The upper edge 18 of the tempered glass 2 is cut out and contacts the central part 15 of the reinforcing ring 3. The lower edge 19 of the tempered glass 2 is cut out, and this lower edge 20 and a part of the back surface 8 of the tempered glass 2 are cut into the bottom 1 of the reinforcing ring 3.
It is closely related to 7. Lower tip 20 of reinforced glass 3
In the example of FIG. 1, both sides are chamfered and both sides have a radius, and in the example of FIG. 2, one side is chamfered and one side has a radius.

[Effect]

Upper tip 1 of the reinforcing ring in the pot lid of the present invention
8 is chamfered and has a radius, so when the tempered glass is fitted and caulked, the surface of the tempered glass is not scratched and damaged.

On the other hand, since the bottom part 17 of the reinforcing ring is in close contact with the back surface of the tempered glass, the stability of the fitting is good and the intrusion of foreign matter is prevented.

Of course, since the reinforcing ring is C-shaped, it has the effect of protecting the peripheral portion of the tempered glass from impact.

〔Example〕

A pot lid having the structure shown in FIG. 1 was created.
The tempered glass used was quenched soda lime glass, and the reinforcing ring was made of aluminum. When the tempered glass was fitted into the reinforcing ring and caulked, the top tip was rounded, so the surface of the tempered glass was not damaged.

When cooking was repeated using this pot lid and the conventional pot lid shown in Figure 5, grease accumulated in the lower space 9 of the conventional product, but no grease accumulated with the invented product. It was hygienic. In addition, with the conventional product, a dent occurred at the bottom of the reinforcing ring, which spoiled the appearance and injured the worker's hand at the bottom tip, but with the present product, no dent occurs, and the bottom tip also has a radius. There was no danger.

[Effect of idea]

The present invention has the following effects.

(a) Since the upper tip 18 of the reinforcing ring is rounded, the tempered glass will not be damaged during manufacturing.

(b) The bottom of the reinforcing ring is in close contact with the back of the tempered glass, so no grease will accumulate even after repeated cooking. The stability of the tempered glass fitting is also good.

(c) Danger to workers can also be prevented by rounding the lower end 21 of the reinforcing ring.

(d) The reinforcing ring has a C-shaped cross section, and its deformation absorbs impact force and prevents breakage from the end face of the tempered glass.

[Brief explanation of drawings]

Fig. 1 is a sectional view of the main parts of the pot lid of the present invention, Fig. 2 is a sectional view of the main parts showing the second embodiment, Fig. 3 is an overall perspective view of the pot lid, and Fig. 4 is a sectional view of the same. FIG. 5 is a sectional view of a main part of a conventional pot lid. 1... Lid body, 2... Tempered glass, 3... Reinforcement ring, 4... Surface, 5... Space, 6... End surface,
7... Space, 8... Back side, 9... Space, 10...
Annular part, 11... Upper tip, 12... Handle, 13
...Screw, 14...Top curved part, 15...Central part, 16...Lower curved part, 17...Bottom part, 18...
...Top edge, 19...Bottom edge, 20...Bottom tip.

Claims (1)

[Scope of utility model registration request] In a pot lid consisting of a disc-shaped lid body mainly made of tempered glass and a reinforcing ring that covers the periphery of the lid body, the upper tip of the reinforcing ring is chamfered and has a radius, and the tip touches the surface of the lid body. A pot lid characterized in that the bottom of the reinforcing ring is in close contact with the back surface of the lid body.