CN1102969A

CN1102969A - Pan

Info

Publication number: CN1102969A
Application number: CN94108052A
Authority: CN
Inventors: 山本正彦
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-23
Filing date: 1994-07-20
Publication date: 1995-05-31
Also published as: JPH07171049A; FR2707857B1; SE9401097L; CA2113786A1; SE9401097D0; ITRM940081A0; GB9400343D0; IT1272173B; GB2280100A; ES2070793A1; NO942102L; AU6459194A; DE4405668A1; NL9400511A; PT101550A; ITRM940081A1; FR2707857A1; ES2070793B1; NO942102D0; JP2829299B2

Abstract

A pan is described which promotes the bubbling of a liquid such as water or soup adequately and minimises the likelihood of the liquid boiling over. To this end, the pan has a circular flat bottom, and the ratio a of the diameter of the bottom of the pan to the respective diameters of the inner surface of its side wall at heights H, (in mm) from the bottom are related to each other.

Description

Pan

The present invention relates to be applicable to the pot of cooking noodle or other food.

This pot has a flat and wide end and a face of cylinder sidewall continuous with it usually.The protruding one handle of sidewall outer upper.

Yet in having the pot of shape like this when cooking noodle or other food, the bubbling of seething with excitement intensely of boiling water or soup causes the upper limb that overflows pot.In this case, excessive water or soup may be put out by water the gas range of pot heating or the flame of similar kitchen range, and is abnormally dangerous.

Therefore, when cooking noodle in pot or other food, must adjust the flame of gas range or similar kitchen range or frequently add water, in order to avoid boiling water or soup overflow.

Fig. 6 and 7 has shown that the application people addresses the above problem the pot (open by Japanese Utility Model communique H3-10818) that once proposed.

As shown in the figure, pot N is such: its end 11, have than small size, and its sidewall 12 upward opening portions outwards open, and promptly sidewall 12 has an arc section profile, and its interior diameter increases from bottom to top gradually.13 is handle, and 14 is gas range.

In the pot of like this structure, its ends 11 area is little, and 11 upper areas produce circulation (claiming that hereinafter this circulation is first circulation) repeatedly during lifting the end of at when boiling water or soup.Simultaneously, as shown by arrows, by the inner surface of sidewall 12 heating and the boiling water of boiling or soup along the lifting and produce circulation (this circulation is called second circulation) repeatedly of sidewall 12 inner surfaces of arc-shaped bend.

Because boiling water or soup carry out circulation (or convection current) above the end 11 and along the inner surface of sidewall 12, thereby can not overflow the upper limb of pot.

Yet because the ends 11 area of the pot shown in Fig. 6 and 7 is less and its sidewall 12 has the arc section profile that an internal diameter increases from bottom to top gradually, still there are the following problems for it.

(1) if the upper limb diameter of sidewall 12 surpasses 2.1 times of diameter at the end 11, though boiling water or soup in boiling, are difficult to form insulated foam coating thereby the foam that produces is less.This may be owing to above-mentioned first and second circulation action temperature and the strong effect that lacks each other.Thereby in this case, will reduce the boiling effect because of not suppressing heat radiation effectively.

(2) on the other hand, if the upper limb diameter of sidewall 12 is less than 1.8 times of the ends 11 diameter, thereby then boiling water or soup bubble very fiercely and overflow.This is considered to because the interaction of first circulation and second circulation has surpassed necessary degree.

Proposed the present invention based on above-mentioned technical background, but its objective is that providing a kind of can moderately promote boiling water or soup foaming can avoid the pot that boils.

According to the present invention, a kind of pot is provided, it has a circular flat bottom, and has the correlation listed as table 1 between the diameter ratio α at its side wall inner surfaces and the end and its height H of being counted end of by (is unit with mm).

Table 1

H(mm) a

0 1

10 1.260 to 1.300

20 1.430 to 1.480

30 1.550 to 1.620

40 1.640 to 1.720

50 1.720 to 1.800

60 1.780 to 1.870

70 1.840 to 1.930

80 1.890 to 1.990

The lower limit such as the table 1 of α value set.Because if the α value is lower than this lower limit, then the foaming of boiling water or soup is not enough, is difficult to form enough insulated foam coatings.Thereby can't suppress the heat radiation of boiling water or soup effectively, seething with excitement, effect is corresponding to be weakened.

Can think that it is because the circulation (i.e. first circulation) of the bottom of a pan top boiling water or soup and too gentle along the circulation (i.e. second circulation) of side wall inner surfaces lacks enough strong interaction that insulated foam coating is difficult to form.

Why the higher limit of α presses table 1 is set, and is because if α value surpasses this upper limit then boiling water or the fierce foaming of soup and may boil.Very fierce boiling is considered to because the considerable interaction between first circulation and second circulation.

Set owing to press table 1 according to the relation between α of the present invention and the H, not only the foaming of boiling water or soup obtains promotion well, and boiling water and soup also possibility do not boil.Can think that this is owing between first and second circulation suitable effect is arranged.

Fig. 1 is an embodiment side view of pot;

Fig. 2 is the side view of the embodiment of pot;

Fig. 3 is the profile of function that is used to illustrate the embodiment of pot;

Fig. 4 is the side view of the another kind of embodiment of demonstration pot;

Fig. 5 is the height H of expression pot and the diameter curve map than the correlation in embodiment and comparative example between the α;

Fig. 6 is the side view by the pot of prior art manufacturing; And

Fig. 7 is a profile of function that is used to illustrate the pot of prior art.

Pot with shape shown in Fig. 1 and 2 is made with the following method: make pot body 1 by the thin corrosion resistant plate of punching press, load onto handle 2 then on pot body 1.This pan has circular flat bottom 1 α, and its size is set as shown in table 2.

Equally, has a medium or undersized pot of shape shown in Fig. 1 and 2 by table 3 and 4 illustrated dimension manufacturings.

Fig. 2 is the cross section view of doing along by a vertical plane of pot 1 center line.Suppose pot 1 cut along a plane that is parallel to end 1a that then obtaining a diameter is R(mm) circle.This diameter and end 1a diameter ratio α are called " diameter ratio ", stipulate according to the height H value of being counted by end 1a.

Fig. 5 for display list 2 to the listed height H of table 4 and diameter than the diagram that concerns between α.Curve A to C represent successively embodiment medium and small, in, the H of cauldron and the relation between the α.Curve D and E represent pannikin and the H of cauldron and the relation between α in the comparative example respectively.

Table 2(cauldron)

Height H (mm) diameter R (mm) a

0 (bottom) 150.18 1

10 192.73 1.283

20 218.72 1.456

30 237.12 1.578

40 252.02 1.678

50 264.36 1.760

60 274.95 1.830

70 284.07 1.891

80 (upper limb places) 291.75 1.942

Table 3 (middle pot)

Height H (mm) diameter R (mm) a

0 (bottom) 135.80 1

10 175.09 1.289

20 200.06 1.473

30 218.19 1.606

40 232.13 1.709

50 243.40 1.792

60 252.86 1.862

70 260.93 1.921

80 (upper limb places) 268.27 1.975

Table 4 (pannikin)

Height H (mm) diameter R (mm) a

0 (bottom) 127.65 1

10 162.98 1.276

20 184.48 1.445

30 200.00 1.566

40 211.84 1.659

50 221.47 1.734

60 229.53 1.798

70 (upper limb places) 237.31 1.859

Then, as shown in Figure 3, first pot that water is housed heats on gas range 5.For cauldron and middle pot, water is injected into the 55mm height; Then be injected into the 50mm height for pannikin.

When water comes to life, in each cauldron and middle pot, drop into the thin dried noodles of two bundles, in pannikin, drop into a branch of thin dried noodles, these noodles were boiled about 10 minutes.After the water boiling, will continue to keep fluidized state.

At this moment, the boiling water bubbling also rises near each pot upper limb, but can not overflow.

The boiling water reason that of not boiling is as follows.Exist as shown in Figure 3 under the situation of boiling water, circulation (or convection current) 3 and the boiling water of boiling water above the 1a of the bottom of a pan forms along the circulation (or convection current) 4 of the inner surface of the sidewall 1b of pot.Yet under this embodiment situation, two circulation are believed to suitably interact, thereby make a froth bed increase to predetermined thickness and can not continue to thicken.

Comparative example

Adopt same way as to make its sidewall 1b angle of elevation less than the cauldron of the corresponding angle of table 2 illustrated embodiment and its sidewall 1b angle of elevation pannikin greater than the corresponding angle of table 4 illustrated embodiment.As previous embodiment, every cauldron and pannikin all have a circular flat bottom.Their size is set as table 5 and 6.Close to tie up among Fig. 5 between height H in the table 5 and 6 and the diameter ratio and respectively be shown in dotted line with one.

Table 5

Height H (mm) diameter R (mm) a

0 (bottom) 150.18 1

10 195.98 1.305

20 225.27 1.500

30 246.60 1.642

40 262.97 1.751

50 277.23 1.846

60 288.65 1.922

70 298.71 1.989

80 (upper limb places) 361.19 2.410

Table 6

Height H (mm) diameter R (mm) a

0 (bottom) 127.65 1

10 160.83 1.260

20 182.79 1.432

30 196.96 1.543

40 206.79 1.620

50 215.58 1.690

60 223.13 1.748

70 (upper limb places) 229.13 1.795

Then, each cauldron of water and pannikin are housed and place heating on the gas range 5.Water filling is gone into cauldron to the 55mm height, goes into pannikin to the 50mm height.

Described as previous embodiment, treat in cauldron and pannikin, to drop into two bundle and a branch of thin dried noodles respectively after the water boiling, boiled again 10 minutes.Fluidized state is continued to keep in water boiling back.

At this moment, the boiling water bubbling in the cauldron less and do not boil take the dish out of the pot outside.This is considered to owing to lack significant the interaction among Fig. 3 between the gentle circulation 3 and 4 of boiling water.

On the other hand, the fierce foaming of the boiling water in the pannikin also slightly overflowed outside the pot.This is considered to owing to there is the interaction of quite big degree between the circulation 3 and 4.

As shown in Figure 4, each pot can have an outside flange 6 that becomes integral body with upper limb among the embodiment.Flange 6 can be used for supporting pot cover in the case.

As previously mentioned, adopt the pot with the above-mentioned shape of the present invention can fully promote boiling water or soup bubbling with improve the boiling effect and can prevent boiling water boil take the dish out of the pot outside.

Claims

1, a kind of pot with circular flat bottom, its side wall inner surfaces diameter and the bottom of a pan diameter ratio value α and the height H of being counted by the bottom of a pan (mm) connect each other, and be as shown in table 1.

Table 1

H(mm)α

0 1

10 1.260 to 1.300

20 1.430 to 1.480

30 1.550 to 1.620

40 1.640 to 1.720

50 1.720 to 1.800

60 1.780 to 1.870

70 1.840 to 1.930

80 1.890 to 1.990