JPS6013801Y2 - Soft synthetic resin bottle stopper - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bottle stopper for sealing the mouth of a bottle in various layers made of glass or plastic.

Conventionally, in bottles for sake, soy sauce, cooking oil, etc., which are used for dispensing the liquid inside the bottle, there has been a gap between the lid for opening and closing the bottle mouth and the cylindrical skirt surrounding the outer periphery of the bottle mouth. Alternatively, a bendable hinge section is provided between a stopper that fits over the bottle mouth and can be separated from the top plate to form a spout, and a lid that covers the top surface of the stopper. They are made of synthetic resin and have an integral bottom shape so that they are integrally connected.

In the case of a relatively hard material such as polypropylene resin, a thin groove-like portion is formed in the middle of the hinge portion in order to make the hinge portion easier to bend.

However, due to the notch effect of this thin grooved portion, the hinge portion becomes fatigued due to repeated bending and breaks, causing the lid to separate from the skirt portion or the plug.

On the other hand, if the thickness of the hinge part is made uniformly thick, the hinge part will be difficult to bend, and if the inflexible part is repeatedly bent, the hinge part will break.

The present invention includes a bottle stopper made of relatively soft synthetic resin such as polyethylene, which fits over the mouth of the bottle and is equipped with a spout that can be separated and opened in the top plate, and the stopper. When forming the bottom of the lid that is removably fitted into the lid integrally through the hinge part, the top surface of the stopper and the bottom surface of the lid are placed adjacent to each other in the same upward position, and the adjacent one By integrally connecting and molding the sides at the lower end of the hinge portion, which has an upside-down U-shaped cross section, the lid body resists the elasticity of the entire hinge group and the plug body When the lid body is pushed up from the state where it is fitted and locked to the plug body to release the lock, the lid body is automatically opened by the elastic force of the hinge part, and This improves the durability of the hinge against repeated bending, allowing the entire hinge to be made of inexpensive polyethylene.Furthermore, even if the hinge becomes sagging due to repeated bending, the lid cannot be opened easily. This prevents the lid from coming close to the mouth of the bottle.

Next, an embodiment of the present invention will be described. In the figure, 1 is a bottle stopper made of soft synthetic resin such as polyethylene, a stopper body 2 and a lid body 3.
The two are integrally molded so as to be connected via a hinge portion 4, as will be described later.

The stopper body 2 has a cylindrical skirt part 6 and an inner stopper part 7 provided concentrically with the skirt part 6 on the lower surface of a top plate 10 that covers the upper surface of the bottle mouth part 5, and the outer circumference of the inner stopper part 7. The surface is in close contact with the inner circumferential surface of the bottle mouth portion 5,
The bottle opening 5 is fitted onto the inner circumferential surface of the outer skirt 6, and the annular protrusion 8 on the inner circumferential surface of the outer skirt 6 is fitted into an annular groove 9 on the outer periphery of the bottle opening 5. .

An outer cylinder 11 and an inner cylinder 12 are concentrically protruded upward on the top surface of the top plate 10, and a locking protrusion 13 is provided on the outer wall of the outer cylinder 11. 10, an annular score line 14 surrounding the planar shape is suitably thin-walled.

On the upper surface of the top plate 10, a holding piece 1 having a ring shape or the like is provided.
5. One end base is provided so as to protrude from the planar inner area surrounded by the annular score line 14, and by pulling the gripping piece 15, the top plate 10 is cut along the score line 14 to form a spout 16. Configure it so that you can.

The body portion 17 protruding downward from the bottom surface of the top plate of the lid body 3 is fitted into the outer cylinder 11 of the edge body 2, and at the same time, the outer circumference of the lower end of the inner stopper 19 protruding downward from the bottom surface of the top plate of the lid body 3 is The lid 3 covers the top surface of the plug 2 by coming into close contact with the inner periphery of the inner cylinder 12 of the plug 2, and the body 17 of the lid 3
The inner surface is provided with a locking protrusion 18 that engages with the locking protrusion 13 on the outer cylinder 11 of the plug body 2, so that the lid body 3 is removably fitted and locked to the outer cylinder 11.

Reference numeral 4 denotes a hinge part that integrally connects the lid 3 and the plug 2, and as shown in FIG. In other words, with the body 17 of the lid 3 facing upward and the outer skirt 6 of the plug 2 facing downward, the upper end side of the outer skirt 6 of the plug and the lower end of the body 17 of the lid - side is integrally joined at the lower end of the inverted U-shaped hinge portion 4, which has an inverted U-shaped cross section.

Further, a contact 20 is bored in the hinge portion 4, and a contact tongue piece 21 having an appropriate length of 1 is provided in the contact 20 from the lower end of the body 17 of the lid body 3.
An inclined contact surface 22 is appropriately formed between the upper surface of the outer skirt portion 6 of the plug body 2 and the outer surface of the outer cylinder 11, which is opposed to the free end of the tongue piece 21.

Note that 23 is a knob protruding from one side of the lid 3.

In the bottle stopper 1 having this structure, after bending the cover 3 toward the stopper 2 against the elastic force of the hinge part 4 connecting the cover 3 and the stopper 2, Plug body 2 as shown in
The bottle can be sealed by fitting the outer skirt part 6 of the stopper 2 into the bottle mouth part 5 and pressing it in the state where it is fitted into the upper outer cylinder 11 and locked by the engagement of the locking protrusions 18 and 13. At this time, the upper surface of the stopper 2 is integrally covered with the lid 3 together with the gripping piece 15 for the spout 16, which is hygienic and prevents the gripping piece 15 from accidentally falling during bottle transportation. There is no fear that the spout 16 will be formed due to being caught.

To open the bottle cap 1, put your finger on the knob 23 of the cap 3 from below and apply upward force to remove the cap 2 from the outer cylinder 11. The hinge 4 returns to its original upside-down U-shape. Due to the restoring elastic force of the hinge portion 4, the lid 3 automatically opens and rotates in a direction away from the top surface of the stopper.

Next, by inserting a finger into the ring-shaped gripping piece 15 and pulling it, a spout 16 can be formed in the top plate as shown in FIG.

Further, as the lid body 3 rotates away from the top surface of the plug body 2, the free tip of the contact tongue piece 21 in the contact portion 20 of the hinge portion 4 is tilted toward the top surface of the outer skirt portion 6 of the plug body 2. Contact surface 2
2, so after rotating it by more than a certain angle θ, the lid body 3
Even if the user takes his hand off, the tip of the abutting tongue piece 21 supports the lid 3 in an inclined state, and the lid 3 can be held so as not to approach the upper surface of the stopper 2.

Furthermore, while the restoring force of the hinge 4 to the inverted U shape is strong, the first
As the lid body 3 tries to restore to the parallel state as shown in the figure, the tip of the tongue piece 21 is locked to the lower end of the annular locking protrusion 13 on the outer wall of the outer cylinder 11, as shown by the dashed line in FIG. Lid body 3
Since the position (posture) of the bottle can be maintained in a direction far away from the upper surface of the stopper body 2, the spout 16 will not be blocked by the lid body 3 even if the bottle is tilted when dispensing liquid.

As described above, the bottle stopper of the present invention consists of a stopper body 2 and a lid body 3 made of soft synthetic resin, and on the bottom surface of the top plate 10 of the stopper body 2, there is a cylindrical cap that fits around the outer periphery of the bottle mouth part 5. The outer skirt portion 6,
On the upper surface of the top plate 10, outer cylindrical parts 11 that fit into the inner periphery of the downward body part 17 of the lid body 3 are integrally provided, and the inner periphery of the downward body part 17 and the outer periphery of the outer periphery part 11 of the lid body 3 are integrally provided. are provided with locking protrusions 18 and 13 that can be freely engaged and detached, and an annular score line 14 is carved in a portion of the top plate 10 of the plug body 2 inside the outer cylindrical portion 11, and the score line is An opening gripping piece 15 for forming a pouring spout 16 by cutting along the line 14 is integrally protruded from the body 17 side of the lid 13 and the upper part of the outer skirt 6 of the stopper 2. The upside-down U-shaped portion of the hinge portion 4 is formed to have an upside-down U-shape in cross section, with the body 17 of the lid 3 facing upward and the outer skirt 6 of the stopper 2 facing downward. Since the hinge part 4 is integrally connected at the lower end, when the lid body 3 is fitted and locked to the stopper body 2, the hinge part 4 resists the elastic force and becomes a substantially straight line, and the hinge part 4 becomes a substantially straight line, forming the original inverted U.
Since an elastic restoring force is generated that tries to return to the shape, the plug body 2
When the lid 3 that is fitted and locked is pushed up a little to release the lock from the edge 2, the lid 3 automatically opens and rotates away from the top surface of the stopper 2 due to the elastic restoring force of the hinge portion 4. At the same time, in the open state, the hinge part 4 has an inverted U-shape, so the two come close to each other in a substantially horizontal manner through the hinge part 4, and the lid body 3 is too far away from the stopper body 2 and becomes an obstruction. It never becomes.

Therefore, since the open state is maintained, the lid body 3 does not get in the way of dispensing the liquid in the bottle, and the liquid in the bottle can be dispensed easily.

In this case, since the hinge part 4 is formed to have an inverted U-shaped cross section, there is no stress concentration point during repeated bending, so there is less fatigue deterioration due to repeated bending, and the durability of the hinge part 4 is high. be.

Therefore, according to the present invention, the entire bottle stopper can be made of inexpensive polyethylene resin.

Moreover, a contacting tongue piece is provided in the contact hole formed in the hinge part 4 so as to protrude from the lid side, and when the lid body approaches the upper surface of the top plate of the stopper body at a certain angle, the tongue piece Since the tip is configured so as to come into contact with the upper surface of the outer skirt of the plug, even if the restoring force of the hinge part to the inverted U-shape is weakened, the tongue piece can easily remove the lid from the plug when the lid is opened. It has the effect of being able to be held at a distance.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, with FIG. 1 being a side sectional view and FIG.
The figure is a plan view, and FIG. 3 is a sectional view showing the state of use. 1... Bottle stopper, 2... Stopper body, 3...
...Lid body, 4...Hinge part, 6...Outer skirt part, 17...Body part, 11...Outer tube, 12... ... Inner cylinder, 14 ... Cut line,
15...Pinching piece, 16...Spout spout, 2
0...Contact, 21...Contact tongue piece.

Claims (1)

[Scope of utility model registration request] Consisting of a plug body 2 and a lid body 3 made of soft synthetic resin, a cylindrical outer skirt portion 6 that fits around the outer periphery of the bottle mouth portion 5 is provided on the bottom surface of the top plate 10 of the stopper body 2. Outer cylinder parts 11 that fit into the inner periphery of the downward body part 17 of the lid body 3 are each integrally provided on the upper surface, and the inner periphery of the downward body part 17 of the lid body 3 and the outer periphery of the outer cylinder part 11 are integrally provided. are provided with locking protrusions 18 and 13 that can be freely engaged and detached, and an annular score line 14 is carved in a portion of the top plate 10 of the plug body 2 inside the outer cylindrical portion 11, and the score line 14 is An opening gripping piece 15 for forming a spout 16 by cutting along the body part 17 side of the lid body 3 and the upper part of the outer skirt part 6 of the edge body 2 is integrally provided. and the lower end of the upside-down U-shape of the hinge part 4, which is formed into an upside-down U-shape in cross section, with the body 17 of the lid body 3 facing upward and the outer skirt part 6 of the plug body 2 facing downward. In addition, a contact tongue piece 21 is provided in the contact 20 bored in the hinge portion 4 and protrudes from the lid body 3, so that the lid body 3 connects to the top plate 10 of the stopper body 2. A soft synthetic resin bottle stopper configured such that the tip of the contact tongue piece 21 comes into contact with the top surface of the outer thrust part 6 of the stopper body 2 when approached at a certain angle with respect to the top surface.