KR20190017418A - Rotatable Double Ring - Google Patents

Abstract

The present invention relates to a rotatable double ring. The double ring according to one embodiment of the present invention comprises: an inner ring, which is fitted on a finger and is composed of an inner race and an outer race which are not in contact with each other; and an outer ring which is fitted against the inner ring and rotates together with the outer race. The inner race and the outer race of the inner ring have a dent part in the direction facing each other and comprise a plurality of balls allowing the outer race to rotate by point contact with the dent parts between the dent parts of the inner race and the outer race. In addition, the outer ring has a projection part projecting from an end of an inner peripheral surface toward the inner ring and the projection part comprises a step formed on the basis of the width of the outer race so as to be spaced apart from the inner race of the inner ring and raise the friction force between the projection part and the outer race by being brought into contact with the outer race of the inner ring.

Description

{Rotatable Double Ring}

The present invention relates to a rotatable double ring.

Generally, rings are used as ornaments as a special memorial, sign of promise, or religious meaning. In particular, a double ring is a double-ring of an outer ring to the outside of the inner ring, for example, a rosary ring, an acupressure ring, and the like. Such a conventional double ring is manufactured by placing an outer ring having an inner circumference larger in diameter than the outer circumference of the inner ring on the outer side of the inner ring, as in the registered utility model No. 20-199868 and the registered utility model No. 20-464250 The outer ring is inserted into the outer peripheral portion of the inner ring and the outer ring is coupled to the outer peripheral portion of the inner ring, So that it is rotatable between the rings.

However, the above-mentioned conventional double ring has a problem in that manufacturing workability and productivity are inferior because the inner ring and the outer ring are assembled by the whole expansion of the inner ring, and the bonding strength of the inner ring and the manufacturing workability and accuracy And there is a problem that the working time is prolonged.

In addition, since the inner ring is severely deformed due to the overall expansion of the inner ring, the manufacturing quality can not be maintained constantly, resulting in deterioration of the merchantability, loosening of the coupling structure due to male and female coupling, And the like. Further, there is a limitation in that the outer ring can not be rotated at high speed.

Disclosure of Invention Technical Problem [8] The present invention has been made to solve the above problems of the prior art, and it is an object of the present invention to provide a double ring which can form an inner ring to be rotatable at high speed, It has its purpose. It is also an object of the present invention to effectively transmit the force applied to the outer ring to the inner ring and to transmit the rotational force of the inner ring efficiently to the outer ring. However, the technical problem to be solved by this embodiment is not limited to the above-described technical problem, and other technical problems may exist.

As a technical means for achieving the above technical object, a double ring according to some embodiments of the present invention includes: an inner ring which is fitted on a finger and is composed of an inner ring and an outer ring which are not in contact with each other; And an outer ring that is pressed against the inner ring and rotates together with the outer ring. At this time, the inner ring and the outer ring of the inner ring each have a depressed portion on a surface facing each other, and include a plurality of balls that allow the outer ring to rotate by point contact with the depressed portion between the inner and outer depressed portions. Further, the outer ring has a protrusion protruding from the end of the inner peripheral surface toward the inner ring. Further, the projecting portion is spaced from the inner ring of the inner ring and includes a step formed on the basis of the width of the outer ring so as to contact the outer ring of the inner ring to increase the friction force between the projecting portion and the outer ring.

Further, a double ring according to some embodiments of the present invention includes: an inner ring which is fitted to a finger and is composed of an inner ring and an outer ring that are not in contact with each other; And a ring-shaped blocking member which is inserted into the inner ring so as to be embedded in an outer ring rotating together with the outer ring and a screw member formed at the end of the inner peripheral surface of the outer ring. At this time, the inner ring and the outer ring of the inner ring each have a depressed portion on a surface facing each other, and include a plurality of balls that allow the outer ring to rotate by point contact with the depressed portion between the inner and outer depressed portions. The blocking member is spaced apart from the inner ring of the inner ring and includes a step formed on the basis of the width of the outer ring so as to raise the friction force between the blocking member and the outer ring in contact with the outer ring of the inner ring.

According to the above-mentioned object of the present invention, some embodiments of the present invention can provide an outer ring that is optimally coupled to an inner ring capable of high-speed rotation and can efficiently transmit the force applied by the user to the inner ring. In addition, some embodiments of the present invention allow different shapes to be formed on the sides of the double ring so that the double ring can exhibit gaming functionality in addition to the aesthetic function. Further, some embodiments of the present invention allow a plurality of double rings fitted on different fingers or the same fingers of a user to be engaged and rotatable, so that various kinds of play can be enjoyed.

In addition, by allowing a plurality of double rings to be rotatable by being engaged with each other, emotional and psychological stabilizing effects such as touching walnuts with fingers in the past can be exerted, and various games can be enjoyed based on the irregular rotational force of the outer ring .

Figure 1 illustrates a double ring according to one embodiment of the present invention.
FIG. 2 is a view showing a detailed structure of an inner ring according to an embodiment of the present invention.
FIG. 3 is a view for explaining a shape of an outer ring according to an embodiment of the present invention, and the left drawing shows an outer ring, and the right drawing shows a sectional view taken along the line AA 'of the outer ring.
Fig. 4 is a view showing a state where the outer ring of Fig. 3 is engaged with the inner ring. Fig.
FIG. 5 is a view for explaining the shape of an outer ring according to another embodiment of the present invention, and shows a cross-sectional view of the double ring taken along line AA '. FIG.
Figure 6 shows a double ring according to another embodiment of the present invention.
Figure 7 illustrates a side view of a double ring in accordance with an embodiment of the present invention.
8 shows an example in which a saw tooth formed on a double ring rotates in engagement with another saw tooth shape of another double ring fitted to another finger according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "indirectly connected" . Also, when an element is referred to as "comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

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

Figure 1 shows a double ring 10 according to one embodiment of the present invention. As shown in Figure 1, the double ring 10 is comprised of an inner ring 11 and an outer ring 13.

First, the inner ring 11 is fitted to the fingers and is composed of the inner ring 11-1 and the outer ring 11-2 which are not in contact with each other. The inner ring 11 also includes a plurality of balls 11-3 which rotate and move between the outer ring 11-1 and the inner ring 11-2.

As shown in Fig. 2, the outer ring 11-1 and the inner ring 11-2 of the inner ring 11 have depressed portions 21 on the surfaces facing each other. The depression 21 performs a guide function to prevent the plurality of balls 11-3 from being separated between the outer ring 11-1 and the inner ring 11-2 and the outer ring 11-1 and the inner ring 11-2 -2) are not in contact with each other. That is, the radii of the plurality of balls 11-3 have a larger value than the depth of the depression 21. For example, the radius of the ball 11-3 may be about 0.5 mm to 2 mm, and the depression 21 may be formed to be about 0.5 mm to less than 1 mm.

Therefore, the plurality of balls 11-3 are in point contact with the center portion (shown by the dotted line) of each depression 21, and rotate along the depression 21.

Meanwhile, the inner ring 11 may further include a guide member 22 for controlling the friction between the balls so that the plurality of balls 11-3 may be spaced apart from each other and rotated . The guide member 22 includes a ball-shaped opening 23 so that each of the plurality of balls 11-3 can be rotated and moved apart at a predetermined interval. Through the above-described configuration, the disclosed embodiment can make the outer ring 11-1 of the inner ring 11 have a high rotational force.

The outer ring 11-1 and the inner ring 11-2 of the inner ring 11 may be formed to have the same width w1 and thickness w2. The end of the guide member 22 (that is, the end on the side where the opening 23 is not formed) is closed by the outer ring 11-1 and the inner ring 11-2, (Not shown) protruding in the direction of the inner ring 11-2. At this time, the length of the protrusion (not shown) can be determined in consideration of the radius of the ball, the depth of the depression, and the margin value (a value for separating the protrusion from the outer ring 11-1 (or the inner ring 11-2) .

As described above, the inner ring 11 is formed to include the outer ring 11-1 that is rotatable by the rotation of the plurality of balls 11-3 in point contact, so that the double ring 10 rotates at high speed And minimizes the noise caused by the rotation by minimizing the contact surface between the ball 11-3 and the outer ring 11-1.

Referring again to FIG. 1, the outer ring 12 may have a saw-tooth shape along the outer circumferential surface. The user can easily rotate the double ring 10 using the sawtooth shape and the sawtooth shape of the double ring 10 can be rotated to engage with the sawtooth shape of the other double ring 10 sandwiched by the other fingers (See FIG. 8). However, the present invention is not limited thereto, and various shapes can be formed on the outer circumferential surface. For example, the outer ring 12 may be embodied in other than a saw tooth shape, a pushable button shape, a saw tooth shape formed in an oblique direction, a game shape, or the like. Further, the outer ring 12 may include a shape having an aesthetic element attached to the outer peripheral surface. For example, the outer ring 12 may be formed with an engraved / embossed pattern, or may be decorated with a noble metal or the like.

On the other hand, the outer ring 12 is coupled to the inner ring 11 in an interference fit manner. For example, the diameter of the outer ring 12 may be about 0.5 mm to 1 mm larger than the diameter of the outer ring 11-1, but is not limited thereto. Thus, the user may apply pressure to the outer ring 12 to separate the outer ring 12 from the inner ring 11. [ Thereby, the user can replace the outer ring 12 with an outer ring of another shape. As described above, the double ring 10 according to the disclosed embodiment is configured to be able to couple various outer rings to the inner ring according to a user's taste and a user's situation, thereby selectively exhibiting an aesthetic function or exhibiting a gaming function .

On the other hand, the outer ring 12 is rotatable in a state in which it is pressed against the inner ring 11. At this time, the disclosed embodiment includes a shape for efficiently transmitting the rotational force generated in the outer ring 11-1 of the inner ring 11 while maintaining the interference fit of the outer ring 12. [

FIG. 3 is a view for explaining the shape of the outer ring 12 according to an embodiment of the present invention. The left drawing shows the outer ring 12, and the right drawing shows the outer ring 12 as AA ' Fig.

Referring to the right drawing, the outer ring 12 includes a protrusion 32 (shown by an oblique line) protruding in the direction of the inner ring 11 from the end of the inner circumferential surface. At this time, the projecting portion 32 is spaced apart from the inner ring 11-2 of the inner ring 11 and is brought into contact with the outer ring 11-1 to raise the friction force between the projecting portion 32 and the outer ring 11-1. (33) formed on the basis of the length of the base (11-1). 4 is a view showing a state where the inner ring 11 and the outer ring 12 are engaged. As shown in Fig. 4, the step 33 can be formed at a point p1 equal to the length of the outer ring 11-1. However, the present invention is not limited thereto, and the step 33 may be formed at a shorter point p2 based on the length of the outer ring 11-1. This makes it possible to raise the frictional force between the outer ring 12 and the outer ring 11-1 so that the outer ring 12 can rotate integrally with the outer ring 11-1. The protrusion 31 is spaced apart from the inner ring 11-2 by a predetermined width w3, thereby preventing a reduction in the rotational force that may be generated when the protrusion 31 abuts against the inner ring 11-2. At the same time, the protruding portion 31 can block foreign matter from entering due to non-contact between the outer ring 11-1 and the inner ring 11-2.

Further, the width w4 of the protruding portion 31 is made shorter than the entire width w5 of the inner ring 11. Thereby, the protruding portion 31 of the outer ring 12 contacts the fingers, thereby reducing the probability that the rotational force is reduced.

FIG. 5 is a view for explaining the shape of the outer ring 12 according to another embodiment of the present invention, and shows a cross-sectional view of the double ring 10 taken along line A-A '.

Referring to Fig. 5, the outer ring 12 includes protrusions 51 projecting from the end of the inner peripheral surface toward the inner ring 11, as in Figs. 3 and 4. At this time, the protruding portion 51 is spaced apart from the inner ring 11-2 of the inner ring 11 and is brought into contact with the outer ring 11-1 to raise the frictional force between the protruding portion 51 and the outer ring 11-1. A stepped portion 52 formed on the basis of the length of the outer ring 11-1 and a protruding portion 53 formed on the end of the stepped portion 52. [ The double ring 10 can cause the outer ring 11-1 of the inner ring 11 to rotate at a high speed integrally with the outer ring 12 by the force applied to the outer ring 12. [

Further, according to the embodiment, as shown in Fig. 6 (a), the outer ring 12 can form the threaded groove 61 at the end of the inner circumferential surface. The double ring 10 may further include a ring-shaped blocking member 62 which is inserted into the threaded groove 61 of the outer ring 12 and has a circular opening in the inside thereof . Fig. 6 (b) shows a cross section taken along the line A-A 'of the outer ring 12 in which the blocking member 62 is fitted. That is, the blocking member 62 (shown by an oblique line) is provided with a step 63 (shown in Fig. 3 or Fig. 5, 51) for performing a similar function to the above- And an opening (not shown) of the blocking member 62 has a diameter larger than that of the inner ring 11-2 of the inner ring 11. [ 6, the screw groove is formed only at one end of the inner circumferential surface of the outer ring 12, but the present invention is not limited thereto. That is, the threaded groove may be formed at both ends of the inner circumferential surface of the outer ring 12, and the outer ring 12 may be combined with the two blocking members through the threaded groove 61 formed at both ends of the inner ring have.

Figure 7 shows a side view of a double ring 10 according to one embodiment of the present invention. As described above, the outer ring 12 has protrusions (31 in Fig. 3, 51 in Fig. 5) (or a ring region of the blocking member (62 in Fig. 6)) protruding from the inner peripheral surface end in the direction of the inner ring 11 The double ring 10 has a side region 71 which is exposed to the outside, as shown in Fig. 7 (a). Accordingly, various shapes can be formed in the side region 71.

7 (b), patterns such as numbers, letters, symbols, and the like may be formed on the side area 71 of the outer ring 12, and as shown in Fig. 6 (c) Similarly, a game shape capable of performing a baseball game, a soccer game, or the like may be formed. In this case, the inner ring 11-2 of the inner ring 11 may further include a pointing member 72 capable of selecting one of a plurality of game shapes formed on the side surface of the outer ring 12. The pointing member 72 is formed by extending a part of the end of the inner ring 11-2 of the inner ring 11 and bent at the upper side of the side region 71 of the outer ring 12, Can be formed so as to be able to indicate / select any one of the game shapes formed in the side region 71 of the outer ring 12 without being rotated by the applied force.

On the other hand, the inner ring 11 and the outer ring 12 are harmless to the human body and can be produced by surgical steel, gold, silver, ceramics, etc. resistant to deformation / discoloration. In addition, the inner ring 11 and the outer ring 12 may be formed of a metal material having been subjected to skin allergy-inducing treatment. However, the present invention is not limited thereto, and it may be produced by a combination of one or more of the above-described materials, or may be produced from a plastic, rubber, or the like.

8 shows an example in which the saw tooth shape formed on the double ring 10 is rotated in engagement with the saw tooth shape of another double ring 10 fitted to another finger according to an embodiment of the present invention. 8, the double ring 10 according to the disclosed embodiment rotates in engagement with the other double ring 10 to form a game shape (for example, as shown in Fig. 7) formed in the lateral region of the outer ring 12 To be more interesting for the user. Meanwhile, although FIG. 8 shows an example in which a plurality of double rings are fitted to different fingers, the present invention is not limited thereto, and a plurality of double rings may be fitted on the same finger so as to be rotated together.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

10: double ring 11: inner ring
11-1: inner ring 11-2: outer ring
11-3: ball 12: outer ring
21: depression 22: guide member
23: opening 31:
32: step 51:
52: step 53:
61: screw groove line 62: blocking member
63: step 71: side area

Claims (10)

In the rotatable double ring,
An inner ring fitted to the fingers and composed of an inner ring and an outer ring which are not in contact with each other; And
And an outer ring that is pressed against the inner ring and rotates together with the outer ring,
Wherein the inner ring and the outer ring of the inner ring each have a depressed portion on a surface facing each other and include a plurality of balls that allow the outer ring to rotate by point contact with the depressed portion between the inner ring and the depressed portion of the outer ring, ,
Wherein the outer ring has a projection projecting from the end of the inner peripheral surface toward the inner ring,
Wherein the protrusions are spaced from the inner ring of the inner ring and include a step formed on the basis of the width of the outer ring so as to contact the outer ring of the inner ring and increase the friction force between the protrusion and the outer ring. The method according to claim 1,
The inner ring
And a guide member including an opening for guiding the position of the plurality of balls. The method according to claim 1,
Wherein the outer ring includes a serrated shape formed along an outer circumferential surface thereof. The method of claim 3,
The tooth profile of the outer ring
And is rotated in engagement with the serration shape of the outer ring of the double ring sandwiched by the other finger adjacent to the finger. The method according to claim 1,
The length of the protrusion
The inner ring being smaller than the entire width of the inner ring. The method according to claim 1,
Wherein the protrusion further comprises a protrusion formed at an end of the step. The method according to claim 1,
The outer ring
Wherein the outer shape of the outer ring includes a game shape as a side area of the outer ring or an outer periphery of the outer ring formed by the protrusion. 8. The method of claim 7,
The inner ring
And a pointing member formed by extending a part of an end of an inner ring of the inner ring and bent at a position above a side region of the outer ring. The method according to claim 1,
Wherein the double ring is produced from at least one of a surgical steel, a ceramic, and a skin-allergenic treated metallic material. In the rotatable double ring,
An inner ring fitted to the fingers and composed of an inner ring and an outer ring which are not in contact with each other;
An outer ring which is pressed against the inner ring and rotates together with the outer ring,
And a ring-shaped blocking member which is inserted into a screw member formed at the end of the inner peripheral surface of the outer ring,
Wherein the inner ring and the outer ring of the inner ring each have a depressed portion on a surface facing each other and include a plurality of balls that allow the outer ring to rotate by point contact with the depressed portion between the inner ring and the depressed portion of the outer ring, ,
The blocking member
And a step formed on the basis of the width of the outer ring so as to be spaced apart from the inner ring of the inner ring and to make contact with the outer ring of the inner ring to raise the frictional force between the blocking member and the outer ring.

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