JPH024058Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field of the Invention) The present invention relates to an improvement in a drain pipe crown that is temporarily attached to the can lid seam portion of the can body during transportation and is permanently attached to the can body during use.

(Prior art) This type of crown body with a drain pipe that has been used in the past has a
As shown in the half-cut sectional view in the figure, a lower cylinder 1 has a bulge on its outer periphery that fits into and locks into the drain hole of the can lid.
and an outer cylinder part 2 which is located outside the lower cylinder 1 and has a tapered lower part that comes into close contact with the can lid top plate when the lower cylinder 1 is fitted into the drain hole of the can lid and latched. A drain pipe 3 located inside the lower cylinder 1 and having a flap-shaped portion at the top; and a slope between the lower cylinder 1 and the drain pipe 3 for returning the liquid content leaking between the pipes into the can. A re-sealing cap 5 that covers the upper side of the corridor 4, the drain pipe 3 and the lower cylinder 1, an upper cylinder 6 having an engaging part that engages with the cap 5, and a can following the upper cylinder 6. A top plate part 7 that covers the entire surface of the lid, a skirt part 8 that hangs down from the periphery of the top plate part 7, and a skirt part 8 provided on the inner surface of the skirt part 8 to temporarily attach the crown body to the can lid seam part of the can body. It has a lower locking groove 9 and an upper locking groove 10 that locks the crown body to the can lid seam portion of the can body when the lower tube 1 is fitted into the drain hole of the can lid.

(Problem to be solved by the invention) In this crown body with a drain pipe, the top plate part 7 covers the entire surface of the top plate of the can lid, and at the periphery, a lower locking groove 9 and an upper locking groove 10 are formed.
The skirt portion 8 reinforced by the can body tightly secures the can lid seam portion of the can body to prevent liquid or gas from passing through. Therefore, air is sealed between the crown and the can lid top plate. On the other hand, when the can body is tilted to pour out the liquid content, the top plate bulges due to the weight of the liquid content, but at this time, this sealed air causes the top plate part 7 to bulge out and It is injected between the lower cylinder part 1 and the outer cylinder part 2 from below the cylinder part 2, and attempts to pull out the lower cylinder 1 from the drain hole of the can lid. This drawback is aggravated by the fact that the top plate repeatedly expands and expands when the liquid inside flows out in a pulsating manner, and the force applied periodically to pull out the lower cylinder 1 suddenly causes the lower cylinder 1 to open from the drain hole. 1, the liquid content flows between the crown body and the top plate, and the friction of the skirt part 8, which is wet with the intruding liquid content, is reduced, and the weight of the liquid content and the swollen crown body It has the disadvantage that the crown body can suddenly fall out of the can body due to the reaction force of the can body trying to return.

(Means for Solving the Problems) In order to eliminate the above-mentioned drawbacks, the crown body with a drain pipe of the present invention includes a drain pipe 3 provided at the periphery of the crown body, and a drain pipe 3 that is separated from the drain pipe 3 and surrounded. a lower tube 1 which is fitted into a drainage hole of a can lid and is hooked thereon; and an inclined corridor 4 which connects the drain tube 3 and the lower tube 1 and slopes downward toward the center of the crown body. and an upper cylinder 6 having an engaging portion that engages with a cap covering the upper surfaces of the drain pipe 3, the lower cylinder 1, and the inclined gallery 4.
and an outer cylinder part 12 which is located outside the lower cylinder 1 and has a length that reaches above the can lid top plate when the lower cylinder 1 is hooked to the drain hole of the can lid, and is connected to the upper cylinder 6. a top plate part 11 that covers the can lid; a skirt part 8 that hangs down from the periphery of the top plate part 11; An upper locking groove 10 into which the can lid seaming portion of the can body is inserted when the can body is opened, and a lower portion of the upper locking groove 10,
In a cap body with a drain pipe, the cap body is equipped with a lower engagement groove 9 for temporarily fixing the cap body to the can lid seam portion of the can body,
On the center side of the crown body, an outflow restriction plate 15 having an air hole 16 is provided on the lower surface of the drain pipe 3, close to the lower tube 1, and the front edge 17 of the outflow restriction plate 15 prevents the liquid from draining. A lower end portion 1 is located inside the tube 3, and the outer cylindrical portion 12 is inclined inward and outward in the diametrical direction of the outer cylindrical portion 12, respectively, and extends in a direction in which they open from each other.
3 and 14, the crown body is equipped with a drain pipe.

(Function) Since the crown body with a drain pipe of the present invention has the above-mentioned structure, the outflow restriction plate 15 having the air holes 16 can separate the content liquid from the outflow location and the air inflow location. , only the liquid inside may leak out at once,
Prevents a pulsating situation where only air flows in at once.
In addition, since the front edge 17 of the outflow restriction plate 15 is located inside the drain pipe 3, the liquid content always comes into contact with the drain pipe 3 and flows out, making it difficult for air to flow in from the drain pipe 3.
Air inflow is concentrated only in the air holes 16, preventing pulsation. Therefore, since pulsation does not occur, the top plate will not bulge or swell, and even if the top plate bulges due to the weight of the liquid inside, the lower ends 13 and 14 of the outer cylinder 12 will not swell. Since it is in good contact with the top plate of the can lid, the air between the top plate part 11 and the top plate does not inject between the lower cylinder 1 and the outer cylinder part 12 as in conventional products, and the lower cylinder 1 from the drainage hole.

Therefore, no force is generated to try to remove the liquid from the drainage hole of the lower cylinder 1, and dispensing in a pulsating state is also prevented, so there is no possibility that the crown body will come off from the can body.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a cross-sectional view of the embodiment of the present invention viewed from the side, and for ease of understanding, shows a state in which the can body shown in the cross-section is temporarily attached. Figure 3 is a plan view with the cap 5 removed, and the
The figure is a bottom view.

The drain pipe crown of the present invention is similar to the conventionally used drain pipe crown shown in FIG. 8, a lower locking groove 9, an upper locking groove 10, and a cap 5. Reference numeral 11 denotes a protruding top plate portion that protrudes to surround the cap 5, and its top surface is on the same plane as the top surface of the cap 5. Reference numeral 12 designates an outer cylindrical portion, the lower end of which is formed into two tapered lower end portions 13 and 14. The lower end 1
3 and 14, when the lower tube 1 of the crown body is inserted into the drain hole of the can lid, the inner lower end 13 deforms toward the lower tube 1, and the outer lower end 14 deforms in the opposite direction. It is configured in advance so that it faces in each direction and has an inclination. 15 is an outflow restriction plate provided with air holes 16. The air hole 1
6 is provided close to the lower cylinder 1, and the outflow restriction plate 15 has a discontinuous portion on the center side of the crown body.
It is located below on the center side of the crown body, where the character-shaped drain pipe 3 and the inclined corridor 4, which slopes downward from the peripheral edge side to the center side of the crown body, are connected. Front end 1 of outflow restriction plate 15
7 is always located inside the drain pipe 3 from the line connecting the discontinuous parts of the C-shaped drain pipe 3. The area and length in the longitudinal direction of the air hole 16 of the outflow restriction plate 15 are always narrower and shorter than the bottom area and diameter of the drain pipe 3, so that the content liquid is difficult to flow out from the air hole 16. It is made to prevent it from leaking.

Since this embodiment has the above structure, the drain hole of the can body is opened, the lower cylinder 1 is fitted therein, and at the same time, the upper locking groove 10 is fitted to the can lid seam part of the can body. . At this time, air is sealed between the protruding top plate part 11 and the can lid top plate. next,
When the cap 5 is removed and the can body is tilted, the top plate bulges out due to the weight of the liquid content. The air sealed between the top plate part 11 and the top plate is pressurized by this bulge and pushes the inside of the crown body outward. Here, in the conventional product, pressurized air is injected between the lower cylinder 1 and the outer cylinder part to try to remove the lower cylinder 1 from the drain hole, but in the present invention, the outer cylinder part 12 Lower end portions 13, 14
is in close contact with the top plate at two places, so pressurized air cannot be injected between the lower cylinder 1 and the outer cylinder part 12.
This pressure is supported by the bulge of the entire crown and the fitting force of the upper locking groove 10 with the can lid winding portion, and no force is generated to pull out the lower cylinder 1. moreover,
In this embodiment, the top plate part is a protruding top plate part 11 to increase the volume between the top plate and the top plate part, so even if the top plate bulges out greatly, the pressure between the top plate and the top plate part is large. This has the advantage that the thickness of the crown body and top plate can be made thinner. On the other hand, when the can body is tilted, the liquid inside flows out through the drain pipe 3, but even if the can body is tilted too far, the outflow restriction plate 15 separates the drain pipe 3 from the air hole 16. Air is continuously sucked in from the air hole 16 by the negative pressure inside the can as the contents are poured out, thereby preventing pouring out in a pulsating state. In addition, since the front line 17 of the outflow restriction plate 15 is located inside the drain pipe, the liquid content always flows out while being in contact with the drain pipe 3 and the front line 17, so that air does not escape from the drain pipe 3. It is difficult to inflow, and the inflow of air is limited only to the air holes, preventing dispensing in a pulsating state. As a result, the top plate does not bulge or swell, and no force is generated to pull the lower tube 1 out of the drain hole.

(Effect of the invention) Since the crown body with a drain pipe of the present invention has the above structure, the structure of the outer cylinder part prevents the generation of force that would try to pull out the lower cylinder from the drain hole of the can body. , the structure of the outflow restriction plate prevents the content liquid from pouring out under pulsating conditions.

Therefore, since there is no pulsation, the top plate does not bulge or swell, and together with the structure of the outer cylinder part, there is no fear that the lower cylinder will come off from the drain hole.

In addition, the structure of the lower end of the outer cylinder prevents the liquid from leaking onto the top plate, and the liquid from adhering to the upper locking groove prevents the upper locking groove from tightening the can lid. This has the additional effect of eliminating the risk of it falling out of place.

[Brief explanation of drawings]

Fig. 1 is a half-cut sectional view of a known crown body with a drain pipe, Fig. 2 is a sectional view of an embodiment of the present invention seen from the side, Fig. 3 is a plan view thereof, and Fig. 4 is a sectional view of a known crown body with a drain pipe. It is a bottom view. 1...Lower cylinder, 2, 12...Outer cylinder part, 3...Drain pipe, 4...Slanted corridor, 5...Cap, 6...
Upper cylinder, 7...Top plate part, 11...Protruding top plate part, 8
. . . Skirt portion, 9 . . . Lower locking groove, 10 .

Claims (1)

[Scope of Claim for Utility Model Registration] A drain pipe 3 provided on the periphery of the crown body, and a lower cylinder 1 that surrounds the drain pipe 3 and fits into and locks into the drain hole of the can lid. , an inclined corridor 4 connecting the drain pipe 3 and the lower tube 1 and sloping downward toward the center of the crown body; and upper surfaces of the drain tube 3, the lower tube 1 and the inclined gallery 4; an upper cylinder 6 having an engaging part that engages with a cap covering the
and an outer cylinder part 12 located outside the lower cylinder 1 and having a length that reaches above the can lid top plate when the lower cylinder 1 is hooked to the drain hole of the can lid, and connected to the upper cylinder 6. Top plate part 11 that covers the can lid
and a skirt portion 8 hanging down from the periphery of the top plate portion 11.
and an upper locking groove 10 on the inner surface of the skirt portion 8 into which the can lid seaming portion of the can body is inserted when the lower cylinder 1 is hooked to the drain hole of the can lid; In a cap with a drain pipe, which is provided with a lower locking groove 9 below the locking groove 10 and temporarily locking the crown to the can lid seam portion of the can body, on the center side of the crown. Then, attach the lower tube 1 to the lower surface of the drain pipe 3.
An outflow restriction plate 15 having an air hole 16 is provided close to the outflow restriction plate 15, a front edge 17 of the outflow restriction plate 15 is located inside the drain pipe 3, and an outer cylinder portion 12 is located inside the outer cylinder. A crown body with a drain pipe characterized in that it is provided with lower end parts 13 and 14 which are respectively inclined inward and outward in the diametrical direction of the part 12 and extend in a direction in which they open from each other.