★★★
科目：機械氏

名：西田晋平

＜知的財産翻訳検定＞答案用紙★★★

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SUMMARY OF THE INVENTION
The present invention has been made to overcome the above
deficiencies.
In an arrangement of the present invention, a tap formedof a cut groove is provided on a top plate of a can; a pulltop tab is attached in a manner rotatable around an axis; a finger
stop is provided on an end of the tab; and a smoothly rising
protrusion is provided opposing the tap relative to the axis on
the top plate.

EMBODIMENT
A preferred embodiment of the present invention will be
described below with reference to the attached drawings.
Fig. 1 is a perspective view showing an embodiment of thepresent invention.

In the figure, a pull-top tab 3 is rotatably

attached at a base end thereof to an axis 6 at the center of a
top plate 7 and a hook having 8 an opening is formed on a distal
end of the pull-top tab 3. In the embodiment shown in Fig. 1,1

a finger stop 1 projecting upward in a slanted manner is formed
on a side of the opening. A smoothly rising protrusion 2 is peaked
right on a side opposing a tap 4 formed of a cut groove relative
to the axis 6. Incidentally, the protrusion 2 gradually rises
along a rotary direction of the tab and is located under themovement path of the tab.
The pull-top tab 3 is horizontally laid between the opening
4 and the protrusion 2 around the axis 6 of the top plate 7. As
shown in Fig. 3, which is a cross section taken along I-I linein Fig. 2, the protrusion 2 and the finger stop 1 are situatedlower than an outer periphery 10 of a can body 5.
In the present invention, a finger is applied on the finger
stop 1 in the condition shown in Fig. 1 and the tab is rotatedtoward the smoothly rising protrusion 2 as shown in an arrow inFig. 2.

When a distal portion relative to the middle sectionof the tab reaches to the peak of the protrusion 2, the hook 8of the tab is lifted by the protrusion and a tip end of a pushportion 9 of the tab is in contact with the opening 4. Then, thetab is pulled up to open the can, which is pulled back to allow
the contents in the can such as beverage to be drunk. According
to the pull-top mechanism of the present invention, theprotrusion 2 and the finger stop 2 are situated lower than theouter periphery 10 of the can body 5, so that the other cans canbe put thereon during storage and transportation.
In the present invention, since a wide gap can be formed2

between the top plate 7 and the tab by applying a finger on thefinger stop 1 of the tab and rotating the tab toward the smoothly
rising protrusion 2, it is possible to safely open a can without
damaging a tip of finger and nail. Further, since the finger stop
1 and the protrusion 2 are situated lower than the top of theouter periphery 10 of the can, the cans can be carried in a stablemanner while being superposed with each other.

WHAT IS CLAIMED IS:
1.

A pull-top mechanism, comprising:a top plate;a pull-top tab attached to an axis on the top plate, thepull-top tab having a hook at a distal end thereof;a finger stop provided on the hook, the finger stop
projecting upward in a slanted manner; anda protrusion opposite to a tap relative to the axis on thetop plate.

2.

The pull-top mechanism according to claim 1, wherein thefinger stop of the pull-top tab and the protrusion do not protrude
over a top of an outer periphery of a can, thereby allowing
superposition of the can.

3