JPH0215801Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to caps for liquid containers, and in particular,
It is a double-structured cap consisting of an inner lid that is attached to the neck of the container and an outer lid that can be rotated relative to the inner lid. By rotating the outer lid relative to the inner lid, liquid can be poured. The present invention relates to a cap for a liquid container whose outlet is closed and opened.

[Prior Art] As such a double-structured cap, the one disclosed in Japanese Utility Model Publication No. 33815/1983 is known.

This cap consists of inner cap 1 and outer cap 8.
A spouting cylinder 5 is arranged between the two, and a clamping piece 3 that slidably holds the spouting cylinder 5 on the upper plate surface of the inner cap 1
and a through hole is provided in the upper plate to allow the liquid in the container to pass through, a flow path 6 is provided in the spout tube 5 passing from the outer circumferential wall to the inner hole, and a protrusion 7 is arranged on the upper wall. The projection 7 is engaged with the inner ceiling of the outer cap 8, and the projection 7 is guided to open the spout tube 5.
A guide groove 9 is provided for sliding in the diametrical direction, and a window 10 is bored in a part of the outer peripheral wall of the outer cap 8. When the outer cap 8 is rotated, the protrusion 7 of the spout barrel 5 guides the outer cap 8. It slides by engaging with the groove 9, and as a result, the flow path 6 of the spout barrel 5 separates from the through hole of the middle cap 1, opening and closing the spout 4, and the spout of the spout barrel 5 is opened and closed. Exit 4 is window 10 of outer cap 8
It was as if they were separating from each other.

[Problems to be solved by the invention] In the liquid container cap described above, the opening and closing of the liquid flow path is performed by separating the flow path of the spout tube and the through hole of the inner lid, and the flow path is opened and closed. Even when closed, the spout of the spout tube is always in contact with the outside air through the window in the outer lid. Therefore, dust and the like enter the inside of the spout, making it unclean.

[Purpose of the invention] The present invention provides a cap for a liquid container that prevents dust from entering the spout and allows the spout to be opened and closed smoothly.

[Means for Solving the Problems] The cap of the liquid container of the present invention includes a cylindrical inner lid to be attached to the neck of the container, and a cap that covers the top surface of the inner lid to prevent liquid from leaking. It is a double-structured cap consisting of a lid and a cylindrical outer lid that can rotate relative to each other.A liquid spout is provided through the peripheral wall of the outer lid, and a liquid spout is provided on the bottom surface of the top plate of the outer lid. A sliding holding part extending in the diametrical direction of the outer cover is provided,
An opening/closing member is disposed inside the sliding holding part so as to be slidable in the diametrical direction of the outer lid, and the tip of the opening/closing member is formed into a rod shape so as to be able to go in and out of the spout. The upper surface of the inner cover is provided with two arcuate grooves into which two protrusions are fitted, and are provided so as to face each other with the bulging side facing outward. By displacing one end inward from the other end, a displacement difference is provided in the distance from the center of the top surface of the inner lid to both ends, and by displacing one end of the other arcuate groove outward from the other end, the inner lid A displacement difference is provided in the distance from the center of the upper surface to both ends thereof, and when the two protrusions are located at the other ends of the two arcuate grooves, the tip of the opening/closing member enters the spout and the spout is opened. When the opening/closing member rotates together with the outer lid, the protrusions are guided by the arcuate grooves, and the opening/closing member slides in the diametrical direction of the outer lid, and the two protrusions move between the two arcuate grooves. When the opening/closing member is positioned at one end of the opening/closing member, the tip of the opening/closing member retracts from the spout into the inside of the outer lid to open the spout.

[Function] The cap of the liquid container having the above structure will be explained.

When the two protrusions of the opening/closing member are located at the other ends of the two arcuate grooves, the tip of the opening/closing member enters the spout and closes the spout, so the liquid does not flow out to the outside. .

When the outer cover is rotated relative to the inner cover, the opening/closing member
It rotates together with the outer cover while being supported by two protrusions, and the protrusions are guided along the arcuate grooves. In this case, since there is a displacement difference in the distance from the center of the top surface of the inner lid to both ends of the arcuate groove, that is, a displacement difference in the diametrical direction of the inner lid, the opening/closing member is moved by the diameter of the outer lid by this displacement difference. slide in the direction. As a result, the tip of the opening/closing member begins to retreat into the inside of the outer lid.

When the outer lid is further rotated relative to the inner lid and the two protrusions are positioned at one end of the two arcuate grooves, the tip of the opening/closing member retracts from the spout into the inside of the outer lid and opens the spout. do. Therefore, the liquid flows out from the spout through the arcuate groove.

Moreover, when the outer lid is rotated in the opposite direction to the above, the spout is closed.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 5.

1 is a cap of a liquid container according to the present invention. The cap 1 has a double structure consisting of a cylindrical inner lid 20 and a cylindrical outer lid 10 that covers the upper plate 22 of the inner lid 20 to prevent liquid from leaking.

The outer lid 10 has a circular top plate 12 and a cylindrical peripheral wall 1.
4 is vertically provided, and a spout tube 16 for discharging the liquid stored in the container is provided at the upper part of this peripheral wall 14 to protrude outward. The spout cylinder 16 communicates the inside and outside of the outer lid 10, and its hollow interior forms a liquid spout 17. 18, 18 are two hanging walls protruding from the lower surface of the top plate 12, and are arranged parallel to the axis of the pouring tube 16 with a predetermined interval between them. The gap forms a sliding groove 19 that extends continuously in a straight line with the spout 17 . Furthermore, an annular protrusion 15 is provided at the lower end of the peripheral wall 14 to protrude inward.

The inner lid 20 has a circular upper plate 22 and a cylindrical peripheral wall 2.
4 are vertically arranged, and the peripheral wall 24 has an annular protrusion 25 on its upper outer peripheral surface. An outer lid 1 is attached to the outer peripheral surface of the peripheral wall 24 below this annular protrusion 25.
By engaging the annular protrusion 15 of No. 0, the outer cover 10 holds the inner cover 20 relatively rotatably. Reference numeral 26 denotes a skirt portion provided outside the peripheral wall 24 and having an inverted L-shaped cross section, and the inner lid 20 is fitted onto the mouth and neck portion 3 of the container in the gap between the skirt portion 26 and the peripheral wall 24. In this case, the protrusion 27 protruding inward at the lower end of the hakama part 26 is located at the mouth and neck part 3.
The inner lid 20 is engaged with an annular recess on the outer peripheral surface of the inner lid 20 to prevent the inner lid 20 from coming off.

The opening/closing member 30 includes a large-diameter body portion 32 arranged inside the sliding groove 19 and a small-diameter tip portion 34 protruding from the end face on the spout side. The body portion 32 is rod-shaped with an elongated elliptical cross section, and its width is slightly smaller than the width of the sliding groove 19. By doing so, the opening/closing member 30 is slidable in the axial direction of the spouting cylinder 16, and the outer lid 10
It rotates with the rotation of.

The tip portion 34 is rod-shaped and has an outer diameter slightly smaller than the inner diameter of the spouting tube 16, and can freely enter and exit the inner hole of the spouting tube 16. By doing so, the tip portion 34 can open or close the spout 17 of the spout tube 16 as the opening/closing member 30 slides.

33a and 33b are provided to protrude downward at both ends of the body portion 22, and are provided with guide protrusions 3.
3a protrudes from the tip 34 side, that is, from the front part, and the guide protrusion 33b protrudes from the rear part of the body part 22.

23a, 23b are guide protrusions 33a, 33b
It is a guide groove for guiding the inner lid 20, and is formed by cutting out an arcuate shape so as to vertically penetrate the upper plate 22 of the inner lid 20. The guide grooves 23a, 23b are formed with guide protrusions 33a, 33b as the outer cover 10 rotates.
It is formed to move from the outside to the inside. The guide grooves 23a and 23b are formed in the upper plate 22 of the inner lid 20 so that their arcuate bulging sides face outward of the inner lid 20 and face each other. Further, one end Q of the guide groove 23a located closer to the spout 17 is formed to be displaced inwardly than the other end P, and one end Q' of the guide groove 23b located farther from the spout 17 is , and is formed to be displaced outward from the other end P'. Then, from the other end Q of the guide groove 23a, the inner lid 2
0 and the distance m from one end P of the guide groove 23a to the peripheral wall of the inner lid 20, that is, the displacement difference S and from the other end P' of the guide groove 23b to the peripheral wall of the inner lid 20. The difference between the distance l' and the distance m' from one end Q' of the guide groove 23b to the peripheral wall of the inner lid 20,
That is, the displacement difference S' is made equal. The guide protrusion 23a is fitted into the guide groove 23a formed in this way, and the guide protrusion 23b is fitted into the guide groove 23b, and the opening/closing member 30 is attached to the inner lid 2.
0 on the upper plate 22 in a stable manner.

That is, when the guide protrusions 33a, 33b are at the positions of the other ends P, P' of the guide grooves 23a, 23b, the tip portion 34 closes the spout 17 (see FIG. 3).

Next, when the outer cover 10 is rotated counterclockwise,
The guide protrusions 33a and 33b are connected to the guide groove 23.
a, 23b, the guide projections 33a,
The state shown in FIG. 4 is when the guide groove 33b is located approximately at the center of the guide grooves 23a, 23b.

Then, when the outer cover 20 is rotated 90 degrees counterclockwise from the position shown in FIG. 3, the guide protrusions 33a, 3
3b comes to the end of the guide grooves 23a, 23b, at position Q', and the tip 34 retreats into the outer lid 20 to open the spout 17.

In this case, the reason why the opening/closing member 30 slides in the diametrical direction of the outer lid 20 is because the displacement difference S (or S') between both ends of the guide grooves 23a and 23b is provided in the diametrical direction. The children 33a, 33b move from the other ends P, P' of the guide grooves 23a, 23b to the one end Q,
When it moves to Q', it slides in the diametrical direction by the displacement difference S. Note that the interval between the two trajectories drawn by the guide protrusions 33a and 33b is constant. Furthermore, when the outer lid 20 is rotated in the opposite direction to the above, the spout is closed.

In the cap of this embodiment, when the liquid stored in the container is not poured out to the outside, the outer lid 10
position as shown in Figure 3. In this position, the tip end 34 of the opening/closing member 30 closes the spout 17, preventing pouring out of the stored liquid and blocking the spout 17 from the outside air. On the other hand, when pouring out the stored liquid, the opening/closing member 30 is placed in the position shown in FIG. In this way, the distal end portion 34 of the opening/closing member 30 opens the spout, making it possible to pour out the stored liquid. When the opening/closing member 30 is in any of these positions, the liquid in the container can freely flow into the gap between the inner cover 20 and the outer cover 10 through the guide grooves 23, 23 of the inner cover 20. In particular, the opening/closing member 30 has two guide protrusions 33a,
Since the opening/closing member 30 is supported by the upper plate 22 of the inner lid 20 by the opening/closing member 33b, the opening/closing member 30 slides stably and smoothly in the diametrical direction, making its operation very easy.

[Effects of the invention] In the liquid container cap according to the invention, when the stored liquid is not being poured out, the spout is closed by the tip of the opening/closing member and is isolated from the outside air. Therefore, the liquid container cap of the present invention is extremely clean because dust does not enter the inside of the spout, and especially since the opening/closing member is supported on the top surface of the inner lid by two protrusions. , the opening/closing member slides stably and smoothly.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway exploded perspective view of a liquid container cap that is an embodiment of the present invention, FIG. 2 is a sectional view of the cap shown in FIG. 1, and FIGS. 3 to 5 are: FIG. 2 is a cross-sectional view showing the positional relationship between the outer lid, the inner lid, and the opening/closing member. FIG. Figure 4 shows the state where it is slightly retreated from the spout, and the fifth
The figure shows the state in which the spout is exited. Explanation of symbols, 1...Liquid container cap, 1
0...outer lid, 17...outlet, 20...outer lid, 2
3... Arc-shaped guide groove, 30... Opening/closing member, 3
3...Tsuko.

Claims (1)

[Scope of Claim for Utility Model Registration] A cylindrical inner lid to be attached to the neck of the container, a cylindrical outer lid that covers the upper surface of the inner lid to prevent liquid from leaking, and is rotatable relative to the inner lid. The cap has a double structure, with a liquid pouring hole penetrating through the peripheral wall of the outer lid, and a sliding holding part extending from the spout in the diametrical direction of the outer lid on the bottom surface of the top plate of the outer lid. An opening/closing member is disposed inside the sliding holding part so as to be slidable in the diametrical direction of the outer lid, the tip of the opening/closing member is formed into a rod shape so as to be able to go in and out of the spout, and the opening/closing member has two protrusions. protrude downward at intervals, and two arc-shaped grooves into which the two protrusions are fitted are penetrated through the upper surface of the inner lid so as to face each other with the bulging side facing outward. One end of the arcuate groove is displaced inwardly from the other end to provide a difference in distance from the center of the top surface of the inner cover to both ends thereof, and one end of the other arcuate groove is displaced outwardly from the other end. A displacement difference is provided in the distance from the center of the upper surface of the inner lid to both ends thereof, and when the two protrusions are located at the other ends of the two arcuate grooves, the tip of the opening/closing member enters the spout and this When the spout is closed and this opening/closing member rotates together with the outer lid, the protrusions are guided by the arcuate grooves and the opening/closing member slides in the diametrical direction of the outer lid, and the two protrusions are rotated together with the outer lid. A cap for a liquid container, characterized in that when positioned at one end of each arcuate groove, the tips of the opening/closing members retract from the spout into the interior of the outer lid to open the spout.