JPH07291295A - Ejector for can opening - Google Patents

Abstract

PURPOSE:To position a pneumatic pipe side in an ejector at an upper part at the time of ejecting contents in a can by a simple means of positioning a cap holding piece at the center of a top plate of the can to smoothly eject the contents without taking a rest. CONSTITUTION:An ejector 70 for a can opening is attached to a top plate 50 of a can on a can body 60 such as an oil can and used to eject contents in the can. The ejector body is formed integrally with an ejection port 10 comprising a foot 11, bellows 12 and a cylinder nip 13 by means of blowmolding synthetic resin. A vent pipe 20 is received inside the ejector body. Further a coupling cap 30 is locked to the ejection port 10. In this case, a locking protrusion is formed above an angled swollen part on an external face of the foot 11. On the other hand, a locking recess to be engaged with the locking protrusion is formed at a center hole of the coupling cap 30. In addition, a holding piece 33 is made to protrude from a side wall 32 of the cap 30, while the locking recess is placed on a side of the holding piece 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a can mouth extraction device used for oil cans, petroleum cans, paint cans and the like.

[0002]

2. Description of the Related Art In a conventional can mouth extraction device, a synthetic resin extraction port 10 composed of a root portion 11, a bellows portion 12, and a tube tip portion 13 is formed into an elongated shape by blow molding, and a part of the root portion 11 is formed. A ridge-shaped bulge 11b is formed over the entire circumference of the pipe, and a pipe passage portion 11e is formed in each of the root portion 11 and the cylinder tip portion 13.
And the pipe attachment portion 13b are formed to face each other on the same side, and the synthetic resin air vent pipe 20 is attached across the pipe passage portion 11e and the pipe attachment portion 13b.
1. Synthetic resin connection cap 30 including the side wall 32
And a protrusion 32a for locking a can mouth is formed on the inner surface of the lower portion of the side wall portion 32, and the extraction port 10 is passed through the central hole 31a of the upper wall portion 31 to form the connection cap 30 and the extraction port 10. Is designed so that the mountain-shaped bulged portion 11b is brought into contact with the upper end of the can opening 40 and the can opening locking projection 32a is locked in the locking recess 41 on the side surface of the can opening 40. Has been issued. As a related one, Shokai 59-3534
The publication No. 7 is known.

[0003]

In the conventional can mouth extraction device, there is no standard for attaching the air vent pipe 20 to the upper part when the contents are extracted when it is attached to the can port 40. When it comes to being located in
It was difficult to rotate so that it would be located at the top. That is, the extraction port 10 is long and difficult to hold, and since it is simply tubular, it is slippery and cannot be easily rotated. If the air vent pipe 20 is located in the lower part during the extraction of the contents, the air does not flow into the can well, and there is a problem that the breathing phenomenon occurs and the contents cannot be extracted smoothly.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and is made by blow molding and is composed of a root portion (11), a bellows portion (12), and a tube tip portion (13). The resin-made extraction port (10) is formed to be elongated, and a mountain-shaped bulge (11b) is formed on a part of the root (11) over the entire circumference.
To form a pipe passage portion (11e) and a pipe attachment portion (13) in the root portion (11) and the tube tip portion (13), respectively.
b) are formed on the same side so as to face each other, and the pipe passage portion (1
1e) and the pipe mounting portion (13b), the synthetic resin air vent pipe (20) is attached to the upper wall portion (3).
1), a synthetic resin coupling cap (30) including a side wall portion (32) is formed, and a can mouth locking protrusion (32a) is formed on the inner surface of the lower portion of the side wall portion (32). Division (3
The extraction port (10) is inserted into the central hole (31a) of 1), the connection cap (30) and the extraction port (10) are locked, and the mountain-shaped bulge portion (11b) is connected to the can port (40). ) And the projection (32a) for locking the can mouth.
In the extraction device (70) for a can mouth, which locks the tongue with the locking recess (41) on the side surface of the can mouth (40),
1b) has a locking ridge (11c) above the root (11)
Is formed on the outer surface of the connecting cap (30), and a locking recess (31b) which substantially coincides with the locking projection (11c) is formed in the central hole (31a) of the coupling cap (30) to engage both of them, A can mouth characterized in that a knob piece (33) extending outward from the side surface of the side wall portion (32) is integrally formed, and the locking recess (31b) is located on the knob piece (33) side. It is a device for extraction.

[0005]

According to such a can mouth extracting device, the locking projection (11c) is formed on the outer surface of the root portion (11) above the mountain-shaped bulging portion (11b), and the central hole (31a) is formed. ), The engaging recess (31c) substantially coincides with the engaging projection (11c).
b) is formed to engage them, and a knob piece (33) extending outward from the side surface of the side wall portion (32) is formed, and the locking recess (31b) is provided on the knob piece (33) side. Since it is located at the bottom of the can top plate (50), the knob (33) can be positioned so that the air vent pipe (20) side will be the upper part when extracting. The contents can be extracted smoothly without any succession phenomenon. If the air vent pipe (20) is located at the bottom, it can be easily located at the top by pinching the knob (33) with a finger and rotating it toward the center of the can top plate (50).

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Extraction port 10 made of synthetic resin that extends long in a cylindrical shape
Is composed of a root portion 11, a bellows portion 12, and a cylinder tip portion 13, and is integrally manufactured by blow molding. Root part 11
A concave portion 11a is formed on the entire middle portion of the concave portion. Adjacent to the concave portion 11a, a mountain-shaped bulging portion 11b is formed over the entire circumference. The mountain-shaped bulge portion 11b has a can opening 40.
Is set to be larger than the outer diameter of the upper end of the. Chevron bulge 1
Immediately above 1b, a locking projection 11c is formed vertically extending over the recess 11a and above it. Locking ridge 11
c is formed close to the pipe mounting hole 11e.
The bottom surface portion 11g of the root portion 11 is formed perpendicular to the longitudinal direction of the can opening 40, and has a substantially semicircular inlet opening 11f for flowing out the contents in the central portion thereof and a pipe mounting hole 11e near the periphery. And are formed. Pipe mounting hole 11
e is the protrusion 1 formed on the bottom surface 11g during blow molding.
It is formed by cutting 1d with a press. The bellows portion 12 is formed so as to be expandable and contractible. Barrel tip 13
Has a substantially semicircular outflow portion 13c and a recessed fitting pipe attachment portion 13b provided side by side. An outlet opening 13a is formed at the tip of the outflow portion 13c. Exit opening 13
The a and the inlet opening 11f are correspondingly formed at the same position. The pipe mounting portion 13b and the pipe mounting hole 11e are formed facing each other at the same position. The outer diameter of the synthetic resin air vent pipe 20 is set to be slightly larger than the inner diameter of the pipe mounting portion 13b, and is set to be slightly smaller than the inner diameter of the pipe mounting hole 11e. The air vent pipe 20 passes through the pipe mounting hole 11e and then through the outlet opening 13a by utilizing the elasticity of the air vent pipe 20 and the recessed pipe mounting portion 13b itself.
The air bleeding pipe 20 is adapted to protrude slightly above and below the extraction port 10. The synthetic resin connection cap 30 includes an upper wall portion 31, a side wall portion 32, and a tab 33. Upper wall 31
A central hole 31a is formed in the central portion of. Central hole 3
The locking ridge 11 is provided on the portion of the la 1a close to the knob 33.
A locking recess 31b having substantially the same shape as that of c is formed.
On the inner surface of the lower portion of the side wall portion 32, a can mouth locking protrusion 32a is formed over the entire circumference. A large number of vertical ribs 32c are formed on the outer peripheral surface of the side wall portion 32. A lower end thick part 32b is formed at the lower end of the side wall part 32. Picking piece 33
Extends horizontally from the side surface of the lower end of the side wall portion 32, and has a ring hole 33a and is formed in a ring shape. The extraction port 10 is passed through the circular hole 31a of the connection cap 30 from its tip end side, the locking projection 11c is engaged with the locking recess 31b, and the upper wall 31 is locked in the recess 11a. The extraction port 10, the air vent pipe 20, and the connecting cap 30 constitute a can mouth extraction device 70. The can mouth 40 is attached near the corner of the can top plate 50 so as to project above the top plate surface. The can top plate 50 is wound around and fixed to a can body 60 to form a can body. In the transportation / storage state before using the contents, a cap (not shown) with an elastic hooking piece is attached to the can opening 40. When trying to extract the contents (for example, engine oil) into the oil tank of a car, etc., after removing the cap with the elastic hooking piece, put the lower part of the root part 11 of the extraction port 10 into the can opening 40. Can 40
The coupling cap 30 is put on the outer side of the can, and the projecting part 32a for can opening locking is locked in the locking recess 41 of the can opening 40.
The can mouth extracting device 70 is attached to the can mouth 40 with b being in contact with the upper end of the can mouth 40.

According to such a can mouth extraction device, the synthetic resin extraction mouth 10 including the root portion 11, the bellows portion 12 and the barrel tip portion 13 is elongated by blow molding, and the root portion 11 is formed.
A ridge-shaped bulge portion 11b is formed on a part of the entire circumference, and the pipe threading portion 1 is formed in each of the root portion 11 and the cylinder tip portion 13.
1e and a pipe mounting portion 13b are formed to face each other on the same side, a synthetic resin air vent pipe 20 is mounted over the pipe passing portion 11e and the pipe mounting portion 13b, and is composed of an upper wall portion 31 and a side wall portion 32. A resin connecting cap 30 is formed, a canister locking projection 32a is formed on the inner surface of the lower portion of the side wall portion 32, and a central hole 31a of the upper wall portion 31 is formed.
The connection cap 30 and the extraction port 10 are locked through the extraction port 10 so that the mountain-shaped bulged portion 11b abuts the upper end of the can port 40 and the projection 3 for locking the can port.
In the extraction device 70 for cans that locks 2a in the locking recesses 41 on the side surface of the can 40, a locking projection 11c is formed on the outer surface of the root part 11 above the ridge-shaped bulging part 11b. Then, the locking projection 11 is formed in the central hole 31a of the connection cap 30.
A knob 33b is formed to form a locking recess 31b that substantially coincides with c, engages both, and extends outward from the side surface of the side wall 32.
Is integrally formed, and the locking recess 31b is provided with the knob 3
Since it is located on the 3 side, it is possible to position the picking piece 33 on the center side of the can top plate 50, so that the air vent pipe 20 side can naturally be positioned at the top during extraction, and a breathing phenomenon occurs. The contents can be extracted smoothly without doing. If the air vent pipe 20 is located in the lower part, the knob 33 is pinched with a finger and the can top plate 50 is pressed.
It can be easily located at the top by turning it toward the center.

[0008]

EFFECTS OF THE INVENTION According to the present invention, the simple operation of locating the picking piece (33) on the center side of the can top plate (50) is such that the air vent pipe (20) side is the upper part during extraction. It is possible to smoothly extract the contents without the occurrence of breathing phenomenon,
If the air vent pipe (20) is located at the bottom, the knob (33) can be easily located at the top by pinching the knob (33) with the fingers and rotating it toward the center of the can top plate (50). A device can be provided.

[Brief description of drawings]

FIG. 1 is a front view of an extraction port used in a can extraction device of the present invention.

FIG. 2 is a bottom view of the extraction port used in the can extraction device of the present invention.

FIG. 3 is a plan view of an extraction port used in the extraction device for a can mouth of the present invention.

FIG. 4 is a cross-sectional view of an extraction port used in the extraction device for a can mouth of the present invention during molding.

FIG. 5 is a cross-sectional view of an air vent pipe used in the can mouth extraction device of the present invention.

FIG. 6 is a cross-sectional view of a connecting cap used in the can mouth extraction device of the present invention.

FIG. 7 is a plan view of a connecting cap used in the can mouth extraction device of the present invention.

FIG. 8 is a cross-sectional view of a state in which the extraction device for a can mouth of the present invention is attached to the can mouth.

[Explanation of symbols]

Extraction port ... 10, Root part ... 11, Recessed part ... 11a, Mountain bulging part ... 11b, Locking ridges ... 11c, Projection part ... 11d, Pipe mounting hole ... 11e, Entrance opening ... 11f, Bottom part ... 1
1 g, bellows portion ... 12, cylinder tip portion ... 13, outlet opening ... 13
a, concave fitting pipe attachment portion ... 13b, outflow portion ... 13c, air vent pipe ... 20, connection cap ... 30, upper wall portion ... 3
1, circular hole ... 31a, locking recess ... 31b, side wall ... 3
2, can opening locking ridges ... 32a, lower end wall thickness portion ... 32b, vertical ribs ... 32c, knob piece ... 33, ring hole ... 33a, can opening ... 40, locking recess ... 41, can top plate ... 50 , Can body ... 60,
Can mouth extractor ... 70.

Claims (1)

[Claims] 1. A synthetic resin extraction port (10) comprising a root portion (11), a bellows portion (12) and a tube tip portion (13) is elongated by blow molding, and one of the root portion (11) is formed. A ridge-shaped bulge portion (11b) is formed over the entire circumference, and the pipe passage portion (11e) and the pipe attachment portion (13b) are faced to the same side on the root portion (11) and the cylinder tip portion (13), respectively. The air vent pipe (20) made of synthetic resin is attached to the pipe passing portion (21e) and the pipe attaching portion (13b), and the upper wall portion (31) and the side wall portion (32) are formed.
Forming a synthetic resin coupling cap (30) consisting of
On the inner surface of the lower portion of the side wall portion (32), a canister locking protrusion (32
a) forming a central hole (31a) in the upper wall (31)
The connection cap (3) is passed through the extraction port (10).
0) and the extraction port (10) are locked, the mountain-shaped bulging part (11b) is brought into contact with the upper end of the can opening (40), and the can opening locking ridge (32a) is connected to the can. Extractor for can mouth (70) to be locked in the locking recess (41) on the side of the mouth (40)
In the above, a locking ridge (11c) is formed on the outer surface of the root (11) above the mountain-shaped bulge (11b), and the locking ridge (11c) is formed in the central hole (31a) of the coupling cap (30). A locking recess (31b) that substantially matches the locking projection (11c) is formed to engage them, and a knob piece (33) extending outward from the side surface of the side wall (32) is integrally formed. An extraction device for a can mouth, which is formed and the locking recess (31b) is located on the side of the picking piece (33).