JPS601594Y2 - safety ashtray - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a standard cigarette ashtray.

The purpose of this invention is that when placing a cigarette butt in an ashtray,
The structure of the ashtray is such that it always receives cigarettes on the safe side, thereby preventing the occurrence of a fire.

Another object of the present invention is to provide an ashtray that meets the above-mentioned objectives with a structure as simple as possible, and to provide such an ashtray at a low cost.

Many of the causes of fires are due to improper disposal of cigarette butts.

This mismanagement can take many forms, but in particular, we will be dealing with cases where tatami mats, mats, etc. were scorched, causing a fire or immediately before a fire occurred, despite having been provided with an ashtray for smoking.

Unless it's intentional, smokers will smother their cigarettes in an ashtray before throwing them away.

Or, no matter how tired or drunk you are, dispose of your cigarettes in an ashtray.

However, if the cigarette is not properly extinguished, it often continues to smolder.

Also, while smoking a cigarette, for some reason, the cigarette is placed in the ashtray without being extinguished.

Before long, I may forget about smoking or fall asleep.

Cigarettes left smoldering in the ashtray can cause a fire.

The reason for this is that cigarettes that are intended to be thrown into the ashtray may naturally fall out of the ashtray.

Particularly in recent years, with the spread of air conditioners, cigarettes tend to continue to smolder due to the adequate ventilation that has become available.If a cigarette falls outside the ashtray and rolls around, it may happen that paper products, clothing, futons, tatami mats, etc.
This burns the mats and eventually causes a phenomenon called ignition.

Therefore, the inventor conducted an experiment to find out why cigarettes fall outside the ashtray.

First, as shown in FIG. 1, a lit cigarette 9 was placed in a shallow ashtray 10 as shown in the figure and left for observation.

The cigarette burns from the tip a to b, and the ash part a → b
was completed.

However, this ash portion a→b does not collapse and maintains the tobacco in approximately the state shown in the figure.

As the cigarette burns, the ash gradually collapses, causing the cigarette to fall into the ashtray, but observations have shown that the ash gradually collapses over a certain length.

Then, as the cigarette becomes shorter and the weight of the mouth part d is on the outside of the ashtray and its influence becomes stronger, the belly part becomes more and more difficult to collapse, and finally, as shown in Figure 2, the cigarette 9
As a result, the ashtray is held until balanced on the peripheral wall of the ashtray 10.

In this case, it is obvious that the cigarette 9 will fall outside the ashtray 10.

Next, as shown in FIG. 3, a cigarette 9 was placed in an ashtray 12 having a cigarette support surface 16 on the periphery as shown in the figure, and the cigarette was left for observation.

The fire spread from a to b and continued to burn without extinguishing even when it came into contact with the support surface 16, and eventually the cigarette 9 fell to the outside of the ashtray 12.

The inventor of the present invention proceeded further from the observation of FIGS. 1 and 2, and sought to find the limit point at which the belly portion a+b could support the cigarette to the point where it would fall to the outside of the ashtray, as shown in FIGS. 5 to 7. I conducted an experiment as shown in .

Cigarette 9 is a standard cigarette and its total length is approximately 8.
cIn, its center of gravity is located at the center position M of the cigarette (4 cm from one end), and the length of the suction part d is approximately 2
It is c1n.

Now, in FIG. 5, the spacing between the support members H and J that support the cigarette 9 is set to 3 cm.

Viewing the right side of the support member J as the outside of the ashtray, insert a new cigarette 9
I lit it, smoked it 2 or 3 times, and left it on support members H and J as shown.

The cigarette then fell outside the ashtray.

The reason for this is that even if the cigarette goes from the tip a to the dot on the support member H and further to the original center of gravity M, the belly part b + M between it and M does not collapse. If the cigarette is held as shown in the figure, and the cigarette moves further to the right from M and its weight becomes lighter, the cigarette balances on the support member J. When the cigarette moves further to the right, the balance is lost and the cigarette falls into the ashtray. It falls outside.

In FIG. 6, the spacing between the aforementioned supporting members HvJ was set to 4 cm, and the same process was repeated.

When doing so, belly part b→M may or may not collapse, and the cigarette falls outside the ashtray about 50% of the time in the experiment.

It will be understood that this probability becomes even higher if the position of the stitched portion d is shifted to the right side compared to the case shown in the figure.

In FIG. 7, the spacing between the supporting members H9J was set to 5 cm.

In this case, for the first time, all the cigarettes fell completely to the left side of the support member J.

That is, after lighting a new cigarette 9 and smoking it 2.3 times, the cigarette 9 was placed on the support members H and J as shown in the figure, so that the end portion d of the cigarette came out as far to the right as possible from the support member J.

When the cigarette burns from a to b, the belly part a+b collapses and the cigarette 9 falls to the left side of the support member J. When I tried it, the abdominal part a→b definitely did not collapse).

If the cigarette 9 is shifted to the left from the position shown in FIG. J
It is easy to understand that it falls further to the left.

This also applies when a suitably shortened cigarette is placed on top.

5 to 7 above, the cigarette 9 is supported almost horizontally between two points.

Next, I experimented to see what would happen if the cigarette 9 was stood up almost vertically, as shown in Figure 8.

In this case, it has been found that if the height g of the support member J is 4.5 cm or more, the cigarette 9 will not fall to the right side of the support member J no matter how the cigarette 9 is placed against the support member J.

Based on the above experimental results, the present inventor has devised ashtrays of various embodiments described below.

That is, the ashtray 14 of the present invention, as shown in FIG. Central stand 3
It is rotationally symmetrical around the center line O.

Then, the distance 1 between the outer peripheral edge 4 of the center base 3 and the upper edge 5 of the main body wall 1 is set to about 50, and the inner sole 2
The depth k is approximately 4.5 to 5 CrIL.

The height of the central stand 3 is set appropriately lower than the upper edge 5, so that the cigarette 9 can be held at an appropriate inclination as shown in A.

The center stand 3 may have any size as long as it can hold the cigarette 9 like a can.

The cigarette 9 can also be placed upright between the inner sole 2 and the upper edge 5 like a mouth.

In order to prevent the cigarettes 9 placed in the ashtray 14 from moving, a protrusion 11 may be provided on the center stand 3 and the inner bottom 2, or a shape that has a similar function may be provided, or a suitable shape may be provided on the upper edge 5. A recess 8 may be provided, or a shape that has a similar function may be provided.

In the ashtray 14 of this first embodiment of the present invention, the cigarette 9 is placed either in the position shown in FIG. 9, or in the mouth.

Even if the cigarette 9 placed in this position loses its balance and falls from the central stand 3, it will clearly fall into the ashtray.

As can be seen from the experiment shown in FIG. 8, the cigarette 9 placed in the mouth also falls into the ashtray because the depth k is 4.5 mm or more.

As can be seen from the experiment shown in FIG. 7, the cigarette 9 placed in the state A falls into the ashtray because the distance 1 is approximately 5C711.

That is, in the ashtray 14 of the present invention, due to its structure, the cigarette 9
No matter how it is placed and left, it will fall into the ashtray.

Furthermore, since the height of the ashtray 14 of the present invention is basically 4.5 cm or more as described above, it is naturally prevented to place a hook around the low ashtray from the outside as shown in FIG. ing.

In addition, in the case shown in FIG. 9 of this embodiment, the main body wall 1
has a portion 7 extending below the midsole 2.

For this reason, the ashtrays 14 can be stacked as shown in FIG. 10, and a plurality of ashtrays can be conveniently carried.

Further, an annular portion 6 provided at the lower edge of the portion 7 is provided for reinforcement.

However, these parts 6, 7 may be omitted as appropriate.

A second embodiment of the present invention is shown in FIG.

This embodiment is basically the same as the one shown in FIG. 9, but the difference is that a cigarette 9 can be placed there as shown in FIG.

That is, the central stand 3 has a wall surface 13 that extends from its outer peripheral edge 4 to the midsole 2.

This wall surface 13 is curved or bent to approximate this curve, keeping a distance of about 5 cm from the upper edge 5 of the main body wall 1.

In this embodiment, the horizontal area of the midsole 2 decreases as the midsole 2 is lowered from the illustrated position.

However, since the depth of the midsole 2 is at most 5 cm from the upper edge 5, the base of the wall surface 13 is substantially the same as that of the midsole 2.
becomes consistent with

Although not shown, a third embodiment of the present invention will be described.

What is shown in FIGS. 9 and 11 is a rotating body about the center line O, and when viewed in a cross section perpendicular to the center line O, the main body wall 1
etc. are basically circular.

By the way, in the third embodiment, a regular polygon that approximates the circle is used.

Therefore, since the outer peripheral edge 4 of the central stand 3 has a straight portion, a cigarette 9 can be placed thereon as shown in E of FIG.

Although not shown, a fourth embodiment of the present invention will be described.

That is, in this embodiment, the shape of the cross section perpendicular to the center line O is an ellipse.

Alternatively, it could be made into a polygon that approximates this ellipse.

Furthermore, although not shown, a fifth embodiment of the present invention will be described.

In this embodiment, the cross section is basically a rectangle, and the shorter sides of the rectangle are replaced with semicircles.

Furthermore, a sixth embodiment of the present invention will be described.

This embodiment can be considered to be a special listing of one extreme of the fifth embodiment described above.

That is, in this embodiment, the central platform 3 is formed into a substantially linear ridge.

This extreme example also applies to the second embodiment shown in FIG. 11, in which the diameter of the center stand 3 is made smaller so that the center stand 3 is essentially a point.

In all of the embodiments described above, the main body wall 1 has a conical shape that widens upward, but it may also have a conical shape that extends downward.

Furthermore, the portions 6 and 7 of the main body wall 1 below the midsole 2 may be omitted.

From the above description, it will be understood that the ashtray of the present invention can be modified in various ways within the scope of the claims.

[Brief explanation of drawings]

Figures 1 to 4 show conventional cigarette ashtrays, and Figures 5 to 8 show experiments that form the basis of the ashtray of the present invention.
9 to 11 are diagrams showing the ashtray of the present invention. In the drawings, the same symbols indicate the same members, 1 is the main body wall, 2 is the middle bottom, 3 is the center stand, 4 is the outer periphery, 5 is the top edge, 9
14 indicates a standard cigarette, and 14 indicates an ashtray of the present invention.

Claims (1)

[Claims for Utility Model Registration] 1. A main body wall that forms the circumference of the ashtray, an inner base provided inside the main body wall at a position approximately 4.5 to 5 cm from the upper edge of this main body wall, and this inner base. A standard safety ashtray for cigarettes, which has a central stand supported at an appropriate height on the bottom, and has a distance of about 5 cm between the outer peripheral edge of the central stand and the upper edge. 2. A claim for registration of a utility model in which the central stand has a wall surface extending from its outer periphery to the middle bottom, and the wall surface is curved at a distance of about 50 mm from the upper edge, or curved to approximate this curve. A standard cigarette safety ashtray as described in item 1.