KR20220113792A - Threaded structure of the container - Google Patents

Abstract

The present invention relates to a screw thread structure of a container, and provides a screw thread structure capable of stably opening and closing a lid with a short wrist rotation. The screw thread structure according to the present invention includes: a first screw thread having a right side surface, a lower surface and an upper surface when viewed from the front; and a second screw thread having a left side, an upper surface and a lower surface when viewed from the front.

Description

Threaded structure of the container

The present invention relates to a screw thread structure of a container used for drugs, beverages, food, cosmetics, etc., and more particularly, to the screw thread structure of a container that can open and close the lid with a short wrist rotation, while stably maintaining the closed state of the lid it's about

In general, if you look at the configuration of containers used for drugs, beverages, food, cosmetics, etc., a single threaded thread forming a spiral is formed so that the lid can be coupled to the upper outer circumferential surface of the container body in which the contents are accommodated, and the container body A one-line thread forming a spiral is formed on the inner surface of the rim of the lid so as to be coupled to the thread of the lid.

The container body having a spiral thread as described above has a single start point and an end point of the screw thread, so it is not only completed when the consumer rotates the lid for a long time when fastening the lid, but also because it takes a long time to work according to the lid fastening during manufacture. There was a problem that the line was delayed and productivity was lowered.

In order to solve the disadvantages of the container having the above-mentioned single thread, in the prior art, as a three-line thread formed with an inclination angle of the one-line thread, the cream-type cosmetic container of the Republic of Korea Utility Model No. 20-0246286 (registration on Aug. 31, 2001) A screw thread structure has been proposed, and a screw thread of a glass container coupled with a steel lid having a similar concept to the three-line screw thread commonly seen in the market is widely used.

However, the above-described three-line thread structure not only does not distribute more threads due to the limitation of a low inclination angle equivalent to that of a one-line thread, but also has a disadvantage that the lid side thread does not exactly match the upper and right sides of the container body side thread. , The screw thread structure of the glass container combined with the above-mentioned iron lid makes it possible to close the gap or overlap the threads by making the inclination angle larger than the three-row screw thread, thereby distributing a number of threads so that the lid can be opened and closed with a shorter wrist rotation. In order to overcome the instability caused by the large inclination angle, the lid is mainly made of iron with strong elasticity, and the container body is mainly made of glass to withstand the local pressure of the iron.

An object of the present invention has been proposed to solve the problems in consideration of the existing problems, and the technical problem to be solved in the present invention is to present a thread structure in which only the advantages of a small inclination-angle thread and a large inclination-angle thread are combined. The purpose is to provide a screw thread structure of a container that can be manufactured regardless of material and material, and can be opened and closed quickly and stably with only a short wrist rotation during use.

The screw thread structure of the container body and the lid according to an embodiment of the present invention for solving the above technical problem, a plurality of first threads formed on the container body in which the contents are accommodated; and a plurality of second threads fastened to the first thread and formed on the lid. Including, wherein the first screw thread is formed in a figure having at least three sides when viewed from the front, a lower surface formed at any one of an inclination angle from 0° to 10°, and a contact point at the left end of the lower surface, the contact point In the right-hand direction, the upper surface extending in at least one of a straight line, a convex curve, and a concave curve, and the right end of the upper surface and the right end of the lower surface are connected to at least any one of a straight line and a convex curve. When the length of the upper surface is the longest among the upper surface and the right surface, the right surface is formed to be inclined in the upper right direction with respect to the bottom surface, and the second screw thread is formed in a figure having at least three surfaces when viewed from the front, the first 1 An upper surface formed parallel to the lower surface of the screw thread, a contact point is formed at the right end of the upper surface, and a lower surface formed by extending at least one of a straight line, a convex curve, and a concave curve from the contact point in the lower left direction, and the left end of the upper surface; The left end of the lower surface includes a left surface formed by being connected to at least one of a straight line and a curved line, the length of the lower surface being the longest among the upper surface, the lower surface and the left surface, and the left surface is the upper right side with respect to the bottom surface inclined in the direction.

When the upper surface of the first screw thread is formed in a straight line, the lower surface of the second screw thread is formed in a straight line parallel to the upper surface.

When the upper surface of the first screw thread is formed in a convex curve, the lower surface of the second screw thread is formed in a concave curve.

When the upper surface of the first screw thread is formed in a concave curve, the lower surface of the second screw thread is formed in a convex curve.

At least one of the vicinity of the right end of the upper surface of the first screw thread and the vicinity of the left end of the lower surface of the second screw thread is formed as a convex curve.

An extension formed by extending in the same pattern as the straight or curved shape of the upper surface from the left end of the upper surface of the first screw thread in the lower left direction, and a straight line or It includes at least one of the extensions formed by extending in the same pattern as the shape of the curve.

The screw thread structure of the container of the present invention combines the advantages of stability of a small inclination-angle thread and a short wrist rotation of a large inclination-angle thread, so that when the user opens or closes the lid from the container body, the It can be opened and closed quickly and stably just by rotating the wrist.

1 is an exploded perspective view showing a screw thread structure of a container body and a lid according to an embodiment of the present invention.
2 to 7 are schematic diagrams showing the structures of the container body side first screw thread and the lid side second screw thread according to an embodiment of the present invention,
2 is a view in which the upper surface of the first screw thread on the container body side and the lower surface of the second screw thread on the lid side are formed in a straight line parallel to each other.
3 is a straight line in which the upper surface of the container body-side first screw thread and the lower surface of the lid-side second screw thread are formed in a straight line parallel to each other, the right end of the upper surface of the container body-side first screw thread and the left end of the lower surface of the lid-side second screw thread; A drawing in which the vicinity is formed by a convex curve.
4 is a view in which the upper surface of the first screw thread on the container body side is formed in a convex curve and the lower surface of the second screw thread in the lid side is formed in a concave curve.
5 is a view in which the upper surface of the container body-side first screw thread is formed in a convex curve and the lower surface of the lid-side second screw thread is formed in a concave curve, and the vicinity of the left end of the lower surface of the lid-side second screw thread is formed in a convex curve.
6 is a view in which the upper surface of the container body-side first screw thread is formed in a concave curve and the lower surface of the lid-side second screw thread is formed in a convex curve;
7 is a view in which the upper surface of the container body-side first screw thread is formed in a concave curve and the lower surface of the lid-side second screw thread is formed in a convex curve, and the vicinity of the right end of the upper surface of the container body-side first screw thread is formed in a convex curve.
8 is a schematic shape diagram showing a structure in which an extension is formed on the first screw thread on the container body side according to an embodiment of the present invention.
9 is a schematic diagram showing a structure in which an extension portion is formed on a second screw thread on the lid side according to an embodiment of the present invention.
10 is an operation state diagram according to an embodiment of the present invention.
*Explanation of major symbols in the drawing*
10: container body 12: lid coupling part
14: first thread 14a: upper surface of the first thread
14b: lower surface of the first thread 14c: right side of the first thread
14d: first thread extension 20: lid
22: container coupling part 24: second thread
24a: second thread upper surface 24b: second thread lower surface
24c: second thread left side 24d: second thread extension

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the shape of elements in the drawings may be exaggerated to emphasize a clearer description. Detailed descriptions of well-known functions and configurations determined to unnecessarily obscure the gist of the present invention will be omitted.

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

1 is an exploded perspective view showing, for example, a screw thread structure of a container body and a lid according to an embodiment of the present invention, and FIGS. 2 to 7 are schematic diagrams showing an embodiment of the present invention. , Figure 8 is a schematic diagram showing a structure in which an extension portion is formed on the container body side thread according to an embodiment of the present invention, Figure 9 shows a structure in which an extension portion is formed on the lid side screw thread according to an embodiment of the present invention It is a schematic diagram, and FIG. 10 is an operation state diagram according to an embodiment of the present invention.

1 to 10, respectively, in the screw thread structure of the container according to the embodiment of the present invention, the contents are accommodated and the container body in which a plurality of first threads 14 are formed on the outer circumferential surface of the upper lid coupling part 12. In the container consisting of (10) and a lid (20) having a plurality of second threads (24) formed on the inner circumferential surface of the container coupling part (22) on the edge side so as to be fastened to the first thread (14), the first thread (14) (14) is a figure having at least three sides when viewed from the front, and the lower surface 14b is preferably formed at an inclination angle of a single thread, but may be formed in any one of the inclination angles from 0° to 10° in the maximum range, , the upper surface 14a forms a contact point at the left end of the lower surface 14b, and extends longer than the lower surface 14b by at least one of a straight line, a convex curve, and a concave curve in the upper right direction at the contact point, and the right surface (14c) is formed by connecting the right end of the lower surface 14b and the right end of the upper surface 14a by at least one of a straight line and a convex curve, so that the right side 14c is inclined in the upper right direction with respect to the bottom surface. can be formed.

The second screw thread 24 is a figure having at least three sides when viewed from the front, wherein the upper surface 24a is formed parallel to the lower surface 14b of the first screw thread 14, and the lower surface 24b is the upper surface Forming a contact point at the right end of (24a), at least one of a straight line, a convex curve, and a concave curve in the lower left direction at the contact point is formed to extend longer than the upper surface 24a, and the left surface 24c is the upper surface 24a The left end and the left end of the lower surface 24b may be connected to at least one of a straight line and a convex curve, and the left side 24c may be inclined in an upper right direction with respect to the bottom surface.

Here, when the upper surface 14a of the first screw thread 14 is formed in a straight line, the lower surface 24b of the second screw thread 24 may be formed in a straight line parallel to the upper surface 14a, and When the upper surface 14a of the first screw thread 14 is formed in a convex curve, the lower surface 24b of the second screw thread 24 may be formed in a concave curve, and the upper surface 14a of the first screw thread 14 is formed. When formed in this concave curve, the lower surface 24b of the second screw thread 24 may be formed in a convex curve.

At this time, at least one of the vicinity of the right end of the upper surface 14a of the first thread 14 and the vicinity of the left end of the lower surface 24b of the second thread 24 is formed as a convex curve, whereby the first thread The upper surface 14a of (14) and the lower surface 24b of the second screw thread 24 may be formed in a straight line or a curved line.

And, when the right side surface 14c of the first screw thread 14 is formed in a convex curve, the left side surface 24c of the second screw thread 24 may be formed in a convex curve, and the first screw thread 14 When the right side 14c of the left side 24c of the second screw thread 24 is formed as a straight line, the left side 24c of the second screw thread 24 may be formed as a straight line parallel to the right side 14c, in this case the lower surface of the first screw thread 14 The obtuse angle part where 14b and the right side surface 14c meet and the obtuse angle part where the upper surface 24a and the left side surface 24c of the second screw thread 24 meet are rounded to a greater or lesser degree, whereby the first thread 14 is The right side 14c of the and the left side 24c of the second screw thread 24 may be formed in a straight line or a curved line.

On the other hand, the right side 14c of the first screw thread 14 and the left side surface 24c of the second screw thread 24 may be combined with different shapes.

And, an extension portion 14d formed by extending from the left end of the upper surface 14a of the first screw thread 14 in the lower left direction in the same pattern as the shape of a straight line or a curved line of the upper surface 14a, and the second 2 An extension of at least one of the extensions 24d extending from the right end of the lower surface 24b of the screw thread 24 in the same pattern as the shape of the straight or curved line of the lower surface 24b in the upper right direction may include

The screw thread structure of the present invention configured as described above can easily and stably open and close the lid 20 from the container body 10 only by a short wrist rotation.

That is, the plurality of first screw threads 14 formed on the outer circumferential surface of the lid coupling portion 12 of the container body 10 and the plurality of second screw threads 24 corresponding thereto are the container coupling portions 22 of the lid 20 . When the lid 20 is rotated in one direction and formed on the inner circumferential surface of the lid 20, the lower surface 24b or the left surface 24c of the second screw thread 24 on the lid 20 side is the container body 10 as shown in FIG. 6(a). While sliding with the upper surface 14a and the extended portion 14d or the right side 14c of the side first screw thread 14, it moves from the right end to the left end direction of the first screw thread 14 side lower surface 14b and descends at the same time and, thereby, the ceiling of the lid 20 rotates until it comes into contact with the upper end of the lid coupling portion 12 of the container body 10 .

At this time, when the lid 20 is rotated to close from the container body 10 and then stopped, the second screw thread 24 on the lid 20 side is generally the container as in the direction of the arrow shown in FIG. 6 (a) as an example. The body 10 side is positioned between the right end and the left end with respect to the lower surface 14b of the first screw thread 14 to maintain a coupled state by the frictional force corresponding to each other.

When the lid 20 is rotated in the other direction from the container body 10 in this closed state, the upper surface 24a of the second screw thread 24 on the lid 20 side is the first screw thread 14 on the container body 10 side. It is opened by moving in the right direction riding the inclination angle of the lower surface 14b.

At this time, the lower surface 24b or the left side 24c of the second screw thread 24 on the lid 20 side is an extension line 14d of the first screw thread 14 on the side of the container body 10 as shown in FIG. 6(b) and It is separated by rising while sliding with the upper surface (14a) or the right side surface (14c).

That is, as an example, a plurality of first screw threads 14 on the side of the container body 10 are formed at intervals of, for example, 120° along the circumferential direction with respect to the outer circumferential surface of the lid coupling portion 12, the lid 20 side When the plurality of second threads 24 are formed at intervals of, for example, 120° along the circumferential direction with respect to the inner circumferential surface of the container coupling part 22, the plurality of first threads 14 and the second threads 24 ) can be easily opened and closed from the container body 10 from the container body 10, since the structure is coupled or released to correspond to each other within the range of 45 °.

On the other hand, the present invention is not limited to the above-described embodiments, but can be implemented with modifications and variations within the scope without departing from the gist of the present invention, and the technical idea to which such modifications and variations are applied also falls within the scope of the following claims. have to see

Claims (6)

A plurality of first threads formed on the container body to accommodate the contents; and
a plurality of second threads fastened to the first thread and formed on the lid;
includes,
The first screw thread,
It is formed in a figure having at least three sides when viewed from the front,
a lower surface formed at any one of an inclination angle from 0° to 10°;
an upper surface formed by forming a contact point at the left end of the lower surface and extending from the contact point to at least one of a straight line, a convex curve, and a concave curve in the upper right direction;
and a right side formed by connecting the right end of the upper surface and the right end of the lower surface to at least one of a straight line and a convex curve,
The lower surface, the length of the upper surface is formed the longest among the upper surface and the right side,
The right side is formed to be inclined in the upper right direction with respect to the bottom surface,
The second screw thread,
It is formed in a figure having at least three sides when viewed from the front,
an upper surface formed parallel to a lower surface of the first screw thread;
A lower surface formed by forming a contact point at the right end of the upper surface and extending from the contact point in at least one of a straight line, a convex curve, and a concave curve in the lower left direction;
and a left surface formed by connecting the left end of the upper surface and the left end of the lower surface to at least one of a straight line and a curved line,
The length of the lower surface is the longest among the upper surface, the lower surface and the left surface,
The screw thread structure of the container in which the left side is inclined in the upper right direction with respect to the bottom surface. The method according to claim 1,
When the upper surface of the first screw thread is formed in a straight line, the lower surface of the second screw thread structure of the container is formed in a straight line parallel to the upper surface. The method according to claim 1,
When the upper surface of the first screw thread is formed in a convex curve, the lower surface of the second screw thread is formed in a concave curve. The method according to claim 1,
When the upper surface of the first screw thread is formed in a concave curve, the lower surface of the second screw thread is formed in a convex curve. 5. The method according to any one of claims 2 to 4,
At least one of the vicinity of the right end of the upper surface of the first screw thread and the vicinity of the left end of the lower surface of the second screw thread is formed in a convex curve. The method according to claim 1,
An extension portion formed by extending from the left end of the upper surface of the first screw thread in the lower left direction in the same pattern as the straight or curved shape of the upper surface, and
The screw thread structure of a container comprising at least one of the extension parts extending from the right end of the lower surface of the second screw thread in the same pattern as the straight or curved shape of the lower surface in the upper right direction.

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