JP2018090256A - Screw cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce a screw cap with advanced controllability for opening and closing by means of improved finger grips of the peripheral wall without putting additional strength.SOLUTION: A topped cylindrical screw cap has a peripheral wall (3) along the rim of a top wall (2). The peripheral wall (3) has a number of recessed parts (4) set along the circumferential direction with a certain distance, supporting parts (5) projecting from bottoms (4a) of recessed parts (4) and movable wall parts (6) connected to the edge of the supporting parts (5) which move in swinging actions in the recessed parts (4).SELECTED DRAWING: Figure 4

Description

  The present invention relates to a screw cap having an anti-slip function on an outer peripheral wall.

  Conventionally, as an anti-slip of a screw cap at the time of opening and closing, for example, as shown in Patent Literature 1, a knurled outer peripheral wall is generally used. Such knurling is formed by engraving a plurality of concave and convex shapes on the outer peripheral wall of the screw cap.

JP 2004-315008 A

  However, the knurling in the screw cap having the configuration described in Patent Document 1 is a configuration in which the predetermined uneven shape is repeatedly arranged monotonously in the circumferential direction. Therefore, if the height difference of the uneven shape is too small, The anti-slip effect is reduced because the frictional resistance is reduced.For this reason, especially during opening that requires a strong torque, it is necessary to turn the screw cap with a strong grip and an increased frictional resistance. Becomes slippery.

  On the other hand, if the height difference of the concavo-convex shape is increased to increase the frictional resistance with the finger and the anti-slip effect is increased too much, the screw cap will be too tight at the time of closing, and the screw cap may be opened at the next opening. It becomes difficult. Moreover, there was a possibility that the finger might be hurt by turning with excessive force.

  In order to solve the above-mentioned problems in the prior art, the present invention creates a screw cap with improved operability at the time of opening and closing that can improve the degree of finger engagement with the outer peripheral wall without having to grip forcefully. Let it be an issue.

Among the means for solving the above problems, the main means of the present invention is as follows.
A topped cylindrical screw cap having an outer peripheral wall at the edge of the top wall,
The outer peripheral wall has a plurality of recessed portions that are recessed at predetermined intervals in the circumferential direction, a support portion that protrudes from the recessed bottom portion that is the bottom surface of the recessed portion, and a continuous portion that is connected to the tip of the support portion and within the recessed portion And a rocking wall portion supported so as to be rockable.

  In the main means of the present invention, by grasping the screw cap, the swing wall portion is inclined, and formation of a stepped portion for placing a finger between the outer peripheral wall and the end portion of the depressed portion can be achieved.

  Further, another means of the present invention is obtained by adding the means that the outer peripheral surface of the swing wall portion and the outer peripheral wall form the same surface to the main means of the present invention.

  By the above means, a feeling of unity is born in the screw cap, and the aesthetic appearance can be improved.

  According to another means of the present invention, a configuration in which the support portion is arranged at the center in the width direction of the depressed bottom portion is added to any one of the above-described means.

  In the above means, the swing wall portion is supported evenly on the left and right, so that it can swing like a seesaw playground equipment, and step portions are formed at both ends of the swing wall portion, so that more step portions are arranged. Can achieve that.

  According to another aspect of the present invention, a configuration in which the supporting portion is disposed on one end side in the width direction of the depressed bottom portion is added to any one of the above-described means.

  With the above-described means, it is possible to achieve the formation of a stepped portion for finger hanging only on the other end side away from the support portion.

  Further, according to another means of the present invention, in the above means, a substantially L-shaped swing wall portion in plan view and a substantially inverted L-shaped swing wall portion in plan view are alternately arranged in the circumferential direction. Is added.

  In the above means, the stepped portions can be arranged at non-uniform intervals in the circumferential direction by alternately arranging the oscillating wall portions having a symmetrical shape in the circumferential direction.

  In the present invention, when the screw cap is lightly gripped, the swing wall portion provided in a part of the outer peripheral wall is inclined and a relatively large step portion appears. Therefore, by using this step portion as a finger hook portion, It is possible to improve the degree of finger engagement without gripping, and to improve the operability when opening and closing the screw cap.

It is a perspective view which shows the screw cap as 1st Example of this invention. It is a top view of a screw cap. It is a half sectional view in the state where a screw cap was attached to a container. It is a perspective view which shows an example of the use condition of the container with which the screw cap was mounted | worn. It is a top view which shows the screw cap as 2nd Example of this invention.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing a screw cap as a first embodiment of the present invention, FIG. 2 is a plan view of the screw cap, FIG. 3 is a half sectional view of the screw cap mounted on a container, and FIG. It is a perspective view which shows an example of the use condition of the mounted | wearing container.

  A screw cap 1 shown as a first embodiment in FIGS. 1 to 4 is formed by injection molding a synthetic resin, and has a top with an outer peripheral wall 3 formed integrally with an edge of a circular top wall 2. It is a cylindrical member. A plurality of (four in this embodiment) recessed portions 4 having a predetermined depth dimension and width dimension and having a substantially square concave shape in plan view are formed on the outer peripheral wall 3 at a predetermined interval (this embodiment). In the example, it is recessed at an interval of 90 degrees in the central angle. The depressed portion 4 is configured to include a depressed bottom portion 4 a and depressed wall portions 4 b that are provided at both ends thereof and are suspended toward the outer peripheral wall 3.

  A rocking wall portion 6 having a substantially tile shape is disposed in the recessed portion 4. The oscillating wall 6 is integrally formed at the tip of the support portion 5 that protrudes in the form of a thin vertical strip at the center in the width direction of the depressed bottom portion 4a so as to form a substantially T shape in plan view. The swing wall portion 6 is set in such a manner that the side portions 6b at both ends thereof can swing like a seesaw play with the central support portion 5 as a fulcrum. The outer diameter of the outer peripheral surface 6a of the swing wall 6 is set to be the same as the outer diameter of the outer peripheral wall 3, and the outer peripheral surface 6a and the outer peripheral wall 3 of the swing wall 6 are the same surface. Forming. Thereby, a feeling of unity is born in the screw cap 1 and it is possible to improve the aesthetic appearance.

  As shown in FIG. 3, a cylindrical inner tube portion 7 is suspended from the lower surface of the top wall 2, and is formed in the mouth tube portion 11 of the container 10 on the inner peripheral surface of the inner tube portion 7. The thread 7a for screwing with the outer threaded portion 12 is engraved. The screw cap 1 is tightened by turning the screw cap 1 in the closing direction (clockwise direction) in a state in which the screw 7 a and the external screw portion 12 are screwed together, thereby fixing the screw cap 1 to the mouth tube portion 11 of the head of the container 10. Installed.

  The screw cap 1 is removed by holding the screw cap 1 and rotating it in the opening direction (counterclockwise direction). Here, as shown in FIG. 4, when the screw cap 1 is rotated while grasping with a finger or the like, the grasped finger slides on the outer peripheral surface 6a toward the downstream side in the rotational direction while pressing the rocking wall portion 6. It will be. At this time, when the finger is pushed, the swing wall portion 6 swings to become an inclined posture, and the side portion 6b located on the downstream side enters the recessed portion 4. Thereby, the depressed wall portion 4b appears on the downstream side of the rotation facing the side portion 6b. At the same time, the side portion 6 b of the swing wall portion 6 on the upstream side of the rotation protrudes larger in the outer diameter direction than the outer peripheral surface 3. The downstream depression wall 4b that appears by entering the depression 4 and the upstream side 6b that protrudes greatly in the outer diameter direction together form a large stepped portion 8. That is, in the first practical example, the stepped portions 8 are formed at both ends of the swinging wall portion 6 when the swinging wall portion 6 swings, so that more stepped portions 8 can be arranged. .

As shown by a broken line in FIG. 3, for example, the thumb f1 and the index finger f2 hook the depressed wall portion 4b that forms the corresponding rotary downstream stepped portion 8 at different positions, and the middle finger f3 etc. The side part 6b that forms the step part 8 is hooked, and the other ring finger and little finger also have a step part 8 constituted by either the recessed wall part 4b on the downstream side of rotation or the side part 6b on the upstream side of rotation. It can be hooked. In this way, by using the stepped portion 8 constituted by the recessed wall portion 4b or the side portion 6b as a finger-hanging portion, it is possible to greatly improve the degree of finger engagement with respect to the outer peripheral wall 3 without strongly gripping the screw cap 1. Can do. Thus, the screw cap 1 can be easily opened by turning it in the opening direction (counterclockwise direction) indicated by the arrow in FIG.
If at least one of the oscillating wall portions 6 is deformed, it functions as a finger hook portion, so that it is possible to easily open and close the screw cap even if all of the oscillating wall portions 6 are not deformed.

  Similarly, when the screw cap 1 is attached, the screw 7 a of the screw cap 1 and the outer screw portion 12 on the container 10 side are screwed together while the screw cap 1 is lightly grasped, and then the screw cap 1 is closed ( By turning and tightening clockwise, the container 10 can be easily attached to the head.

By the way, the shape of the rocking wall 6 can be other than the above. FIG. 5 is a plan view showing a screw cap as a second embodiment of the present invention.
The screw cap 1 shown in the second embodiment is different from the first embodiment in the configuration of the oscillating wall portion 6, and other configurations and effects are the same as those in the first embodiment. Therefore, the following description will mainly focus on the different points.

In the screw cap 1 shown in the second embodiment, a support portion 5 that supports the swing wall portion 6 so as to be swingable protrudes in a vertical band shape at a position on one end side in the width direction of the depressed bottom portion 4a. . And the rocking | fluctuation wall part 6 which consists of a substantially tile shape at the front-end | tip of this support part 5 is arrange | positioned so that planar view may be substantially L-shaped or planar view substantially reverse L shape.
For example, between the adjacent depressions 4, the swing wall portions 6 are arranged such that one support portion 5 is formed at one end in the circumferential direction and the other support portion 5 is formed at the circumferential position. By alternately shifting in the circumferential direction so as to be the other end, the rocking wall portion 6 having a substantially L shape in plan view and the rocking wall portion 6 having a substantially inverted L shape in plan view are alternately arranged in the circumferential direction. You may comprise so that it may arrange | position.

  In the second embodiment, in the oscillating wall portion 6 having the support portion 5 on one end portion (for example, the left end) side in the circumferential direction, the other end portion separated from the support portion 5 with the support portion 5 as a fulcrum. The side portion 6b on the (for example, right end) side can swing greatly. Similarly, in the swing wall portion 6 having the support portion 5 on the other end portion (for example, the right end) in the circumferential direction, the end portion (for example, the left end) side away from the support portion 5 with the support portion 5 as a fulcrum. The side portion 6b can swing greatly. When the screw cap 1 is lightly grasped, the side portion 6b pressed by the finger is inclined and enters the recessed portion 4, and at the same time, the recessed wall portion 4b that faces the side portion 6b appears, A large step 8 is formed between the wall 3 and the wall 3. That is, in the second embodiment, the stepped portion 8 is formed only at one end of both ends of the swing wall portion 6 by swinging the swing wall portion 6. Therefore, also in the second embodiment, by using such a stepped portion 8 as a finger-hanging portion, it is possible to greatly improve the degree of finger engagement, and the same effects as in the first embodiment can be achieved.

  As mentioned above, although the structure of this invention and its effect were demonstrated along the Example, embodiment of this invention is not limited to the said Example.

  For example, in the above description, an example in which four rocking wall portions 6 are arranged on the outer peripheral wall 3 at intervals of a central angle of 90 degrees has been described. However, the number of the rocking wall portions 6 and the interval between the rocking wall portions 6 are as described above. It is not limited. For example, two pieces may be arranged at intervals of a central angle of 180 degrees, three pieces may be arranged at intervals of a central angle of 120 degrees, or five pieces may be arranged at a central angle of 72 degrees, or a central angle of 60 degrees. Other configurations may be used for the quantity and the central angle as long as they are arranged at a uniform interval, such as a configuration in which six are arranged every time. Furthermore, the structure which arrange | positions the rocking | swiveling wall part 6 to the outer peripheral wall 3 at a non-uniform space | interval may be sufficient.

  Further, in the second embodiment, the configuration in which the swing wall portions 6 having a substantially L shape in plan view and the swing wall portions 6 having a substantially inverted L shape in plan view are alternately arranged in the circumferential direction has been described. However, the present invention is not limited to this. For example, a substantially L-shaped rocking wall portion 6 in a plan view is disposed at both positions that are axially symmetric with respect to the center O (see FIG. 5). A configuration may be adopted in which rocking wall portions 6 that are substantially L-shaped in plan view are arranged at both positions that are orthogonal and symmetrical with respect to the center O. Of course, only the oscillating wall portion 6 having a substantially L shape in plan view, or only the oscillating wall portion 6 having a substantially inverted L shape in plan view, or the oscillating wall portion 6 having a substantially T shape in plan view and a substantially L shape in plan view. It is also possible to adopt a configuration in which the rocking wall portion 6 having a substantially L-shape or a substantially inverted L shape in plan view is mixed and arranged in the circumferential direction.

  Further, in each of the above embodiments, the swing wall portion 6 having a substantially tile shape is arranged in the outer peripheral wall 3 in a substantially T shape in plan view, a substantially L shape in plan view, or a substantially inverted L shape in plan view. However, the swing wall portion 6 is not limited to a substantially tile shape, and the arrangement thereof is not limited to the above.

  Further, in each of the above-described embodiments, the screw cap 1 having a top cylindrical shape is shown and described. However, the present invention is not limited to the embodiment of the present invention. It may be cylindrical.

  INDUSTRIAL APPLICABILITY The present invention can be used in a wider area in the field of screw caps having an antislip function on the outer peripheral wall.

1: Screw cap 2: Top wall 3: Outer peripheral wall 4: Depressed part 4a: Depressed bottom part 4b: Depressed wall part 5: Support part 6: Oscillating wall part 6a: Outer peripheral surface 6b: Side part 7: Inner cylinder part 7a: Thread 8: Stepped portion 10: Container 11: Mouth tube portion 12: External screw portion

Claims (5)

A top screw cap having an outer peripheral wall (3) at the edge of the top wall (2),
A plurality of recessed portions (4) recessed in the circumferential direction at a predetermined interval on the outer peripheral wall (3), and a support portion protruding from a recessed bottom portion (4a) which is a bottom surface of the recessed portion (4) (5) and a rocking wall portion (6) which is connected to the tip of the support portion (5) and is supported so as to be able to rock within the recessed portion (4). cap.   The screw cap according to claim 1, wherein the outer peripheral surface (6a) of the swing wall portion (6) and the outer peripheral wall (3) form the same surface.   The screw cap according to claim 1 or 2, wherein the support portion (5) is arranged at the center in the width direction of the depressed bottom portion (4a).   The screw cap according to claim 1 or 2, wherein the support portion (5) is arranged on one end side in the width direction of the depressed bottom portion (4a). The screw cap according to claim 4, wherein the rocking wall portions (6) having a substantially L shape in plan view and the rocking wall portions (6) having a substantially inverted L shape in plan view are alternately arranged in the circumferential direction.

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