JP2016084153A - Pouring lid structure having function to stop liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pouring lid capable of enhancing sealability of a pouring cylinder.SOLUTION: A pouring lid comprises: a lid body 4 including a pouring cylinder 12 extending in a lateral direction; and a cap 2 covering the lid body 4 by being engaged with the lid body 4. The cap 2 comprises a pouring port plug 20 formed with a surrounding wall and brought into pressure contact with a pouring port 12b of the pouring cylinder 12 to seal the pouring port 12b. A part of the surrounding wall of the cap 2 around the pouring port plug 20 has a special elastic part 22 which can be more easily deformed than other parts of the surrounding wall.SELECTED DRAWING: Figure 3

Description

The present invention relates to a dispensing lid structure for a container having a dispensing cylinder, and more specifically, a dispensing lid structure having a liquid stopping function capable of preventing the liquid contained in the container from leaking out from the dispensing cylinder. About.

  As a typical example, explanation will be given by taking a bottle of rar oil as an example. Many rar oil bottles that are available have a pouring lid (Patent Document 1) having a pump function made of a synthetic resin and a cap that covers the pouring lid. ing. The cap and the dispensing lid are connected by an integrally formed hinge.

  By pushing the pump while opening the cap and tilting the oil bottle, the oil can be discharged from the dispensing cylinder extending in the lateral direction from the dispensing lid.

Patent document 2 is disclosing the cap with a liquid stop function. The cap disclosed in Patent Document 2 will be described using the terms and reference numerals described in Patent Document 2. The cap has a lid 4 that surrounds the cap body 2 including the spout portion 11. The lid 4 has a spout 18 that is partially bulged inward. When the cap is closed, the spout 11 can be sealed by fitting the spout 18 with the outlet of the spout 11.

  FIG. 8 and FIG. 9 show the rar oil bottles on the market. FIG. 8 is a perspective view of the upper portion of the Luller oil bottle, showing a state in which the cap is opened. FIG. 9 is a cross-sectional view taken along line BB in FIG. 8 and shows a state in which the cap is closed.

  The upper oil bottle 100 has a pouring lid 104 with a cap 102 at the top thereof. The dispensing lid 104 is a resin molded product. The extraction lid 104 has a raised portion 106 having a circular shape in plan view, and further has a bellows type pump 108 at the center thereof. The raised portion 106 has a dispensing cylinder 110. Lull oil can be discharged from the dispensing cylinder 110 by pushing down the pump 108 while the luller oil bottle 100 is tilted.

  The extraction tube 110 extends obliquely upward from the base end 110a toward the outlet end, that is, the injection port 110b (angle θ). A cap 102 is connected to the dispensing lid 104 via an integrally formed hinge 112 (FIG. 8). The axis of the hinge 112 is indicated by Ax. The extraction tube 110 extends in parallel with the hinge axis Ax when viewed in plan.

  The cap 102 includes a cylindrical lower end ring portion 102a, a flat top portion 102b having a flat plan view, and a conical intermediate inclined portion 102c between the lower end ring portion 102a and the top portion 102b. The inner peripheral surface of the lower end ring portion 102 a has substantially the same diameter as the outer peripheral step portion 104 a of the dispensing lid 104 that is circular in plan view. When the lower end ring portion 102a of the cap 102 is engaged with the outer peripheral step portion 104a of the dispensing lid 104, the cap 102 is in a locked state in which the dispensing lid 104 is closed.

  The intermediate inclined portion 102c of the cap 102 has a spout 114 that bulges in a spherical shape on the inner peripheral surface thereof. When the cap 102 is closed, a part of the spout plug 114 enters the spout 110b, whereby the spout tube 110 can be sealed.

Japanese Utility Model Publication No. 7-44730 Japanese Utility Model Publication No. 7-8248

  In the cap 102 shown in FIGS. 8 and 9, the dispensing cylinder 110 extends in parallel with the hinge axis Ax. In particular, in this type of dispensing lid, the cap 102 is closed when the handle is operated. The force tends to work in a direction that is obliquely deviated from the normal swinging direction of the hinge 112. For this reason, as the cap 102 is repeatedly opened and closed, there is a tendency that the contact between the spout 114 and the spout 110b is slightly shifted when the cap 102 is closed. In such a case, there has been a problem that liquid leakage occurs when the Luller oil bottle 100 is overturned or repeatedly used. The same can be said for the cap disclosed in Patent Document 2.

  An object of the present invention is to provide a dispensing lid structure capable of enhancing the sealing performance of the dispensing tube.

According to the present invention, the above technical problem is
A lid body with a dispensing tube extending in the lateral direction;
A cap that covers the lid body by engaging with the lid body;
The cap has a spout formed on its peripheral wall and in pressure contact with the spout of the spout cylinder to seal the spout;
An extraction lid structure having a liquid stopping function, having an easily elastic portion that can be easily elastically deformed around the spout plug in the peripheral wall of the cap as compared with other peripheral wall portions. Is achieved by providing

  That is, when the spout is pressed against the spout of the spout cylinder, the elastic portion exerts a biasing force that presses the spout against the spout by its elastic force. Even if a force that causes a gap between the lid body and the cap is applied, the elastically deformable portion elastically deforms and the contact between the spout and the spout is reinforced and self-corrected (position correction). Leakage from the air can be prevented accurately.

  In a preferred embodiment of the present invention, the lid body and the cap are both circular and located on concentric circles when viewed in plan. Thereby, the said urging | biasing force can be made to act equally toward the center with respect to a spout stopper in the circumferential direction. In order to improve the certainty of sealing performance, it is preferable that the spout stopper has a shape that becomes smaller toward the tip.

  Other objects and advantages of the present invention will become apparent from the following description of preferred embodiments of the present invention.

It is a perspective view of the oil oil bottle provided with the pouring lid with a cap of an example, and the state where a cap was closed is illustrated. It is a perspective view of the oil oil bottle provided with the extraction lid with a cap of an example, and the state where a cap was opened is illustrated. It is an enlarged view of the extraction lid with a cap shown in FIG. FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3 and shows a state in which the cap is closed. It is a figure for demonstrating the internal structure of the cap of an Example. It is a figure for demonstrating the modification of the internal structure of the cap of an Example, and is a figure corresponding to FIG. It is a figure for demonstrating another modification of the internal structure of the cap of an Example, and is a figure corresponding to FIG. It is a perspective view of the upper part of the conventional oil bottle provided with the extraction lid | cover with a conventional cap, and the state which opened the cap is shown in figure. It is sectional drawing along the BB line of FIG.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  FIGS. 1-7 shows the oil bottle applied to the extraction lid | cover structure of this invention. The pouring lid structure of the embodiment has a cap 2 and a lid body 4 that is directly attached to the oiler bottle 14, and this cap 2 is used to cover the lid body 4. The cap 2 and the lid main body 4 are both circular and concentrically located when viewed from above, and the cap 2 has an integral structure with the lid main body 4. The cap 2 is connected to the lid body 4 by a hinge 6, swings about an axis Ax (FIG. 3) of the hinge 6, and closes the lid body 4 (FIG. 1) and opens the lid body 4. Open state (FIG. 2). The cap 2 is preferably a resin molded product integrally formed with the lid body 4, and the hinge 6 is preferably an integrally formed hinge.

  The lid body 4 has a raised portion 8 having a circular shape in plan view at the top plate portion, and further has a bellows type pump 10 at the center portion thereof. The raised portion 8 has a dispensing cylinder 12. As in the prior art, the ra oil can be discharged from the dispensing cylinder 12 by pushing down the pump 10 while the ra oil bottle 14 is tilted. In addition, an annular outer peripheral step portion 4a into which a cap 2 described later is fitted is formed on the outer peripheral edge of the top plate portion.

  Referring to FIG. 4, the extraction tube 12 extends obliquely upward from the base end 12a toward the injection port 12b (angle θ). The dispensing cylinder 12 extends in parallel with the hinge axis Ax when viewed in plan (FIG. 3).

  The cap 2 has a flat top portion 2b that is circular in plan view, and a peripheral wall. The peripheral wall has a cylindrical lower end ring portion 2a and a conical shape between the lower end ring portion 2a and the top portion 2b. The intermediate inclined portion 2c is formed (FIG. 4). The inner peripheral surface of the lower end ring portion 2 a has substantially the same diameter as the outer peripheral step portion 4 a of the lid body 4 that is circular in plan view. The cap 2 is in a locked state in which the lower end ring portion 2 a is engaged with the outer peripheral step portion 4 a of the lid body 4 to close the lid body 4. Of course, the method of holding the cap 2 in the closed state is not limited to the fitting between the outer peripheral stepped portion 4a and the lower end ring portion 2a, and any locking means can be used as long as the cap 2 can be stopped in the closed state. It may be adopted.

  The dispensing cylinder 12 is preferably harder than the dispensing cylinder 110 described above with reference to FIGS. 8 and 9, and is preferably longer than the conventional dispensing cylinder 110. That is, according to the pouring lid structure of the present invention, by providing the elastically deformable easily elastic portion 22 having a specific shape surrounding the spout 20, the pouring tube 12 that is hard or has a length will be described later. The spout 20 can be brought into pressure contact and the urging force assisting the pressure contact can be exerted by the elastic force of the easily elastic portion 22.

  Referring to FIG. 5, the cap 2 has a spout 20 that bulges in a spherical shape on the inner peripheral surface of the intermediate inclined portion 2 c of the peripheral wall. The shape of the spout plug 20 can be arbitrarily selected as long as the spout tube 12 can be sealed by being pressed against the spout 12 b of the spout tube 12. For example, the spout plug 20 can adopt any three-dimensional shape as long as the shape gradually decreases toward the tip. Therefore, the spherical shape of the embodiment is merely a typical example of the spout 20. The spout 20 is disposed at a position facing the spout 12b of the spout cylinder 12 when the cap 2 is in a closed state. By closing the cap 2, a part of the spout 20 is different from the conventional one. Similarly, the extraction tube 12 can be sealed by entering the injection port 12b of the extraction tube 12.

  The cap 2 is formed with a thin wall around the portion of the peripheral wall where the spout 20 is formed, as compared to the other peripheral wall of the cap 2 that is formed relatively firmly. A deformable easily elastic portion, that is, a thin portion 22 is formed. The thin-walled portion 22, which is an easily elastic portion, is provided in a strip shape that surrounds the spout 20 and extends to the substantially lower end of the peripheral wall of the cap 2. Specifically, in this embodiment, the cap 2 is formed in the lower end ring portion 2a and the intermediate inclined portion 2c with a relatively thin thin portion 22 in a belt-like shape in the portion located around the spout 20. The thin portion 22 constitutes an easily elastic portion (FIG. 5). That is, the thin-walled portion 22 that is an easily elastic portion is formed in a rectangular region in front view that reaches from the upper end of the intermediate inclined portion 2c to the lower end of the lower end ring portion 2a. It is preferable that the spout 20 is located at the center of the easily elastic portion, that is, the thin portion 22 in the width direction, that is, the circumferential direction of the intermediate inclined portion 2c.

  More specifically, the thin-walled portion 22 is made by forming a recess in the inner surface of the cap 2, and the outer peripheral surface of the cap 2 is flush and has a good appearance.

  As a modification example of the shape of the easily elastic portion, that is, the thin portion 22, as shown in FIG. 6, the thin portion 22 may have a trapezoidal shape that is narrower from the lower end ring portion 2a toward the top portion 2b. Good. Further, the thin portion 22 is preferably a thin region from the lower end side of the lower end ring portion 2a of the peripheral wall to the upper side in consideration of sealing performance and moldability, as shown in FIG. The lower end ring portion 2a may have a shape extending from the lower end to the middle in the vertical direction of the intermediate inclined portion 2c.

  As can be easily understood by those skilled in the art, the sealing force of the spout plug 20 can be increased by the elastic deformation of the easily elastic portion formed around the spout plug 20, that is, the thin-walled portion 22. That is, when the cap 2 is closed, the thin portion 22 is elastically deformed and a part of the spout 20 enters the spout 12b of the relatively hard spout cylinder 12, but the spout 20 has a thin portion The elastic restoring force continues to act. That is, this restoring force continues to act as a biasing force and a self-position correcting force for pressing the spout 20 against the spout 12b of the spout cylinder 12.

  Therefore, if the elastic restoring force that presses the spout stopper 20 against the spout 12b of the spout cylinder 12 is exhibited, the shape of the spout stopper 20 in a front view is arbitrary, and the size thereof is also arbitrary. Most preferably, the spout 20 is located at the center of the thin portion 22 in the width direction when the spout 20 is viewed from the front. As a result, the elastic restoring force acting on the spout 20 can be made to be equal to the left and right, that is, the urging force acts toward the center of the spout 20.

  In the embodiment, the thickness of the peripheral wall of the cap 2 excluding the elastic portion, that is, the portion excluding the thin portion 22 is about 1.4 mm, whereas the thickness of the thin portion 22 is about 0.45 mm. The material of the lid body 4 provided with the cap 2 is polypropylene. This synthetic resin material may be polyethylene, an elastomer, or the like. In order to exert the above urging force, the thin wall portion 22 of the intermediate inclined portion 2c has a thickness of about 20% to about 50%, preferably about 30% to about 40% of the other peripheral wall portion. It is preferable to set the thickness.

  When the thin-walled portion 22 is formed up to the lower end ring portion 2a of the cap 2 (FIGS. 5 and 6), when the lower end ring portion 2a is engaged with the lid body 4 and closed, the lower end ring portion 2a is closed. The shape is along the body 4. In this case, the thin portion 22 is displaced in a direction approaching the dispensing cylinder 12. As a result, the spout 20 is pressed against the spout 12b of the spout cylinder 12 and seals the spout 12b, and the self-position correcting force is enhanced.

And since the lower end ring part 2a has a circular shape in a plan view, the sealing force acts uniformly on the entire spout 20.

  The vertical dimension of the thin-walled portion 22 that is an easily elastic portion is preferably set to about 70% to about 100% of the height dimension of the peripheral wall of the cap 2. In addition, the circumferential width of the thin portion 22 is preferably set to about 10% to about 20% with respect to the entire circumference of the peripheral wall of the cap 2. Moreover, it is preferable that the dimension of the spout 20 when viewed from the front is set to about 250% or more and 500% or less of the opening of the spout 12b of the spout cylinder 12.

  From the above description, according to the dispensing lid structure of the embodiment, even when a force that causes a deviation from the lid body 4 is applied when the cap 2 is opened and closed, The force causing the shift can be absorbed and corrected, and a desired sealing property can be maintained.

As mentioned above, although the preferable Example of this invention was described, this invention is not limited to said Example, The following modification is included.
(1) In the embodiment, the thin portion 22 is formed by forming a recess in the inner peripheral surface of the cap 2. However, as a modification, the thin portion is formed by forming a recess in the outer peripheral surface of the cap 2. 22 may be formed. Of course, you may make it form the thin part 22 by forming a recess in both the internal peripheral surface of the cap 2, and an outer peripheral surface.

(2) In the embodiment, the integrally molded product of the cap 2 and the lid body 4 is illustrated, but the cap 2 and the lid body 4 may be separate.

(3) In the embodiment, the dispensing cylinder 12 extends in parallel with the hinge axis Ax, but the extending direction of the dispensing cylinder 12 is arbitrary, and may extend in a direction orthogonal to the hinge axis Ax, for example.

  The present invention is typically applied to a Lulla oil bottle, but is not limited to this and can be widely applied to containers containing liquids.

2 Cap 2a Lower end ring part 2b Flat top view circular top part 2c Cap middle inclined part 4 Cap body
6 Hinge (connects the extraction lid and cap)
12 Injection pipe
12a Base end of the pipe
12b Spout of the pipe
14 Ra oil bottle
20 spout
22 Thin part (easy elastic part)

Claims (8)

A lid body with a dispensing tube extending in the lateral direction;
A cap that covers the lid body by engaging with the lid body;
The cap has a spout formed on its peripheral wall and in pressure contact with the spout of the spout cylinder to seal the spout;
An extraction lid structure having a liquid stopping function, having an easily elastic portion that can be easily elastically deformed around the spout plug in the peripheral wall of the cap as compared with other peripheral wall portions. .   The pouring lid structure provided with the liquid stop function according to claim 1, wherein the spout stopper is disposed at the center in the width direction of the easily elastic portion.   The dispensing lid structure having a liquid stopping function according to claim 1 or 2, wherein the lid body and the cap are both circular and located concentrically when viewed in plan.   The extraction lid | cover structure provided with the liquid stop function as described in any one of Claims 1-3 which has a shape where the said spout stopper becomes small as it goes to a front-end | tip.   5. The liquid stopping function according to claim 1, wherein the easily elastic portion of the peripheral wall of the cap is formed thinner than the other peripheral wall portions. Extraction lid structure.   The dispensing lid structure having a liquid stop function according to claim 5, wherein the cap is connected to the lid body by a hinge.   The dispensing lid structure having a liquid stopping function according to claim 6, wherein the dispensing cylinder extends in parallel with the axis of the hinge.   The extraction lid structure provided with the liquid stop function according to any one of claims 1 to 7, wherein the easily elastic portion extends to a substantially lower end of the cap.

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