WO2022071628A1

WO2022071628A1 - Snap ring

Info

Publication number: WO2022071628A1
Application number: PCT/KR2020/016734
Authority: WO
Inventors: 김성훈
Original assignee: 주식회사 이엔에스
Priority date: 2020-09-29
Filing date: 2020-11-24
Publication date: 2022-04-07
Also published as: KR20220043601A

Abstract

The present invention relates to a snap ring which couples to the overlapping or partially touching and fixed ends of plurality of parts so that same do not move and are stably fixed in place, the snap ring comprising at least one ring (100), an opening (200) separating the opposite ends of the ring, and a fixing means (300) in the opening between the ends of the ring, fitted and fixed therein to connect same.

Description

snap ring

The present invention relates to a snap ring in which a plurality of installation parts overlap or are partially in surface contact with each other and are coupled to an end to be fixed so that the plurality of installation parts are stably fixed without moving from an installation position.

In general, installing in the snap ring installation hole formed in the shaft or shaft hole so that the parts installed in the shaft or shaft hole are firmly fixed in the installation position without being separated from the position, the head of both ends as shown in Fig. 1a is It is classified into a snap ring for a shaft that protrudes outward and a snap ring for a shaft hole in which the heads of both ends as shown in FIG. 1B protrude inward.

Both of the two types of snap rings as in FIGS. 1A and 1B classified as described above have an elastic force formed so that the heads of both ends face each other and are spaced apart, and when installed in a shaft or shaft hole with a small diameter, The corresponding part installed in the shaft or shaft hole can be safely and firmly fixed by the elastic force of the snap ring itself, but when installed in the shaft or shaft hole with a large diameter, the elastic force of the snap ring itself can be used to secure the shaft or shaft hole. There is a limit to securely and securely fixing the parts installed in the .

Accordingly, in recent years, there is Korean Patent Publication No. 10-2017-0090197 (2017.08.07.) of Patent Document 1 as shown in FIG. 2 in order to overcome the above problems, and the configuration is as follows.

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A progressive process of cutting the plate material and forming the ring portion 11 and the reference portion 20 having the reference hole 21 protruding to the inside of the ring portion 11 to produce the first molded product 10A;

A sizing process of forming a second molding 10B by applying a cold forging method to the first molding 10A manufactured through the progressive process to form an inclined surface 13 on the outer circumferential side of the first molding 10A;

By applying a notching method to the second molding 10B manufactured through the sizing process, the reference portion 20 of the second molding 10B is cut to form the opening 17 of the snap ring, and the third molding 10C ) is a bevel-type snap ring manufactured by a notching process.

The snap ring of FIG. 2, which is the Korean Patent Application Laid-Open No. 10-2017-0090197, also has an elastic force in which the heads of both ends face each other and are spaced apart, like the snap rings of FIGS. 1A and 1B, and have a small diameter shaft. Alternatively, when installed in the shaft hole, the corresponding part installed in the shaft or shaft hole can be safely and firmly fixed by the self-elastic force of the snap ring, but when installed in the shaft or shaft hole with a large diameter (250mm or more) There is a limit in safely and securely fixing the corresponding part installed in the shaft or shaft hole by the elastic force of the snap ring itself.

The present invention was invented to solve the problem of the limitations of the conventional snap ring described above, the purpose of which is,

First, by forming at least one ring forming the snap ring to form a snap ring having a diameter of various sizes, it can be applied and used regardless of the size of the installation part.

Second, by connecting and installing the opening forming the snap ring as a fixing means to improve the durability of the snap ring, when a plurality of installation parts are overlapped or some are installed to be in surface contact with each other, the installation parts are stably not moved from the installation position To provide a snap ring to be fixed.

The configuration of the snap ring problem solving means of the present invention for achieving the above object is,

In the snap ring for stably fixing a plurality of installation parts (C) that overlap or partially come into surface contact with each other without moving from the installation position,

The snap ring (S) is also made of one or more rings 100, and an opening 200 facing each other and spaced apart from each other is formed between the ends of the ring. The opening formed between the ends of the ring is fixed by being fitted in the opening, and fixing means 300 for interconnecting the ends of the ring are installed.

The snap ring of the present invention having the configuration as described above, as described for the above purpose, by forming at least one or more rings forming the snap ring to form a snap ring having a caliber of various sizes, thereby installing parts It can be applied and used regardless of the size of the snap ring, and by connecting and installing the opening forming the snap ring with a fixing means to improve the durability of the snap ring, it is installed when a plurality of installation parts are overlapped or some are installed in contact with each other. There is an effect that the part can be stably fixed without moving from the installation position.

1A and 1B are perspective views of a snap ring applied to a shaft or shaft hole;

2 is a perspective view showing a conventional snap ring manufacturing process;

3a to 3e are perspective views showing a snap ring embodiment of the present invention;

4A and 4B are an exploded perspective view and a combined cross-sectional view to which the fixing means of the first embodiment of the present invention is applied;

5A and 5B are an exploded perspective view and a combined cross-sectional view to which the fixing means of the second embodiment of the present invention is applied;

6A and 6B are an exploded perspective view and a combined cross-sectional view to which the fixing means of the third embodiment of the present invention is applied;

7 is a front and rear perspective view of an embodiment of the fixing means installed in the snap ring opening of the present invention;

8 is an enlarged cross-sectional view showing the cross-sectional configuration of the ring in the snap ring of the present invention;

9 is a cross-sectional view showing an embodiment of the state to which the snap ring of the present invention is applied.

The present invention relates to a snap ring in which a plurality of installation parts overlap or partially contact each other and are coupled to an end to be fixed so that the plurality of installation parts are stably fixed without moving from an installation position, which An embodiment will be described with reference to the following.

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The present invention, as shown in Figures 3a to 9, in a snap ring that allows a plurality of installation parts (C) to be stably fixed without moving from the installation position, overlapping or partially installed to be in surface contact with each other,

In the above configuration, where the snap ring (S) of the present invention is mainly installed and applied, as shown in FIG. 9, two installation parts (C) are coupled to form a corner part of the "L" shape, and "a" It is installed where the corner part of the ruler shape is formed.

The application location of the snap ring (S) of the present invention described in the present invention is an embodiment of the present invention, and in addition, it can also be applied and used to installation parts installed in various shaft holes.

The description of the snap ring (S) of the present invention applied and used as described above will be described in detail with reference to the accompanying drawings as follows.

- under -

In the first embodiment of the snap ring (S) of the present invention, as shown in Figure 3a, one ring (100a) is formed in a circular shape, and the circular ring (100a) end is formed between the both ends of the circular ring (100a). The openings 200 facing each other and spaced apart are formed, and the heads 120 are formed at both ends of the circular ring 100a forming the opening 200 .

And in the opening 200 formed between the ends of the circular ring 100a, the fixing means 300 is fitted and fixed to the opening 200 and connects the ends of the circular ring 100a, that is, the head 120 to each other. By installing it so that the elastic force of the snap ring (S) is maintained stably and continuously without changing, the plurality of installation parts (C) are firmly fixed and supported.

In addition, in the second embodiment of the snap ring (S) of the present invention, as shown in FIG. 3b , two semicircular rings 100b are provided, and the two semicircular rings 100b are interconnected to each other to form a snap ring (S). To form a, between both ends of the semi-circular ring 100b, the ends of the semi-circular ring 100b are formed with an opening 200 spaced apart from each other facing each other.

And the opening 200 formed between both ends of the semi-circular ring 100b is fitted and fixed in the opening 200, and fixing means 300 for interconnecting both ends of the semi-circular ring 100b, that is, the head 120 is installed. As a result, the elastic force of the snap ring (S) is not changed and the plurality of installation parts (C) are firmly fixed and supported because it is maintained stably and continuously, and the size of the semi-circular ring (100b) is changed to change the size of the snap ring (S) The size of the aperture of the can be selectively adjusted according to need.

In addition, the third embodiment of the snap ring (S) of the present invention is to form a snap ring (S) using four rings (100c) of 1/4 size as shown in FIG. 3c, the 1/4 size An opening 200 is formed at one of the ends of the ring 100c facing each other, and the opposite end of the other end of the 1/4-sized ring 100c has no head 12. The ends of the are formed to be in surface contact with each other.

And the opening 200 formed between one end of the 1/4-sized ring 100c is fitted and fixed to the opening 200, and the end of the 1/4-sized ring 100c, that is, the head 120 is interconnected. The fixing means 300 is installed, and between the other ends of the semicircular ring 100b, the other end is formed to be in surface contact with each other, so that the elastic force of the snap ring S does not change and is stably and continuously maintained. (C) is firmly fixed and supported, as well as by changing the size of the 1/4-sized ring 100c so that the size of the aperture of the snap ring (S) can be selectively adjusted as needed.

In addition, the fourth embodiment of the snap ring (S) of the present invention is to form a snap ring (S) by using four rings (100c) of 1/4 size as shown in FIG. 3d, the 1/4 size An opening 200 is formed at each end of the ring 100c facing each other.

And the opening 200 formed between each end of the 1/4-sized ring 100c is fitted and fixed to the opening 200, and each end of the 1/4-sized ring 100c, that is, the head 120 is interconnected. By installing a fixing means 300 to firmly and support a plurality of installation parts (C) by not changing the elastic force of the snap ring (S) and maintaining it stably and continuously, of course, the 1/4-sized ring (100c) By varying the size, the size of the aperture of the snap ring (S) can be selectively adjusted as needed.

In addition, in the fifth embodiment of the snap ring (S) of the present invention, as shown in FIG. 3e , the ring forming the snap ring is divided into five or more, and some of the divided rings are formed with a head at one end. 120 is formed and the other end uses a ring 100e without a head 120, and the other part of the ring forms a snap ring S using a ring 100f without a head 120. do.

In the case of the ring 100e in which the head 120 is formed on one side, the opening 200 is formed, the fixing means 300 is connected to the opening 200 and installed, and the ring without the head 120 ( In the case of 100f), the ends of the ring without the head 120 are in contact with each other so that the elastic force of the snap ring (S) is not changed and the plurality of installation parts (C) are firmly fixed and supported. Of course, by varying the size of the plurality of rings, the size of the aperture of the snap ring (S) can be selectively adjusted as needed.

A plurality of installation parts (C) on which the snap ring (S) described above is installed, as shown in FIG. ) and the other side of the installation part (C) fixedly supported by the remaining snap ring (S) that the snap ring (S) is not fitted and coupled to the installation part (C).

As described above, the snap ring (S) of the present invention is made of one or more rings 100, and between both ends of the ring 100, the ends of the ring 100 face each other and are spaced apart from each other. 200) is formed. The opening 200 formed between the ends of the ring 100 is fitted and fixed to the opening 200 and constitutes a fixing means 300 for interconnecting the ends of the ring 100, because the snap ring (S ) size, that is, the diameter can be assembled and used in various sizes as needed, and the elastic force of the snap ring (S) can be constantly and continuously maintained so that a plurality of installation parts (C) can be stably and firmly fixed, This is to enable precise implementation of the snap ring (S).

On the other hand, the ring 100 is, as shown in FIGS. 8 and 9, the coupling portion 110 fitted to the plurality of installation parts (C) is formed to protrude to the outside of the ring 100, that is, to the outer edge, By forming the outer thickness OT to be thicker than the inner thickness IT, when the coupling part 110 of the snap ring S is inserted into the coupling hole CH formed in the installation part C and coupled, a plurality of installations are performed. The component (C) is firmly fixed and supported.

In addition, the coupling portion 110, the upper portion is formed as a horizontal plane (111a), the both ends of the horizontal plane (111a) to form an obtuse-angled inclined surface (111b) having a downward inclination to the fitting hole 111 and, By forming a horizontal support part 112 to support and support the installation part (C) at the lower end of the inclined surface (111b) on the one side, the support part (112) supports and supports the installation part (C) located at the upper part, The fitting hole 111 having a horizontal surface 111a and an inclined surface 111b was easily coupled to the coupling hole CH of the installation part C to exert a firm fixing force.

In addition, at the end of the ring 100 forming the opening 200, a head 120 larger than the outer diameter of the ring 100 is formed as shown in FIGS. 4A to 6B, and the head 120 By forming the side surface and the lower surface of the flat surface, a close contact is made between the side plate 320 and the lower plate 330 of the fixing means 300, thereby stably fixing it.

And the fixing between the side and lower surfaces of the head 120 and the side plate 320 and the lower plate 330 of the fixing means 300 is a side plate 320 which is a configuration of the fixing means 300 . ) and the lower plate 330, the fixing bolt (B) passes through the side and the lower surface of the head portion 120 and is screwed, whereby the fixing means 300 is firmly fixed.

However, a hole is formed in the side and lower surface of the head 120 to which the fixing bolt (B) is fastened. Therefore, the fixing means 300 has the advantage of being able to be easily separated from the side and the lower surface of the head 120 as needed.

In addition, the width of the opening 200 is formed to maintain the same width from the inner end to the outer end of the head 120 of the ring 100 as shown in FIG. 4B or as shown in FIG. 5B. It can be used by forming the interval gradually narrowing from the inner end to the outer end of the head 120 on both sides,

The reason is that, in accordance with the shape of the wedge 310 of the fixing means 300 to be described below, the spacing of the opening 200 does not change, so that the elastic force of the snap ring S is constantly and continuously maintained, so that a plurality of installations This is to keep the component (C) stable and firmly fixed.

The shape of the wedge 310 matching the opening 200 will be described below.

An example of the fixing means 300 of the present invention is a wedge ( 310), and on both sides and lower surfaces of the wedge 310, side plates 320 and lower plates 330 that are fixed in close surface contact with the side and lower surfaces of the head 120 are formed. is done

The wedge 310 is formed to match the opening 200, and the upper portion of the wedge 310 formed to match the opening 200 is formed to have the same shape as the coupling portion 110, the reason is to maintain a stable coupling force by forming a close coupling when the wedge 310 is fitted into the coupling hole CH formed in the installation part C.

And the height of the side plate 320 is positioned below the coupling part 110 so that the coupling hole 110 is fitted into the coupling hole CH formed in the installation part C, and the side plate 320 is coupled thereto. ) and the coupling hole (CH) is preferably prevented from interfering with each other.

In the first embodiment of the wedge 310 as described above, when the width of the opening 200 is formed to maintain the same distance from the inside to the outside of the ring 100, as shown in FIGS. 4A and 4B, the wedge 310 ) is also used to have the same width from the bottom to the top, and in the second embodiment of the wedge 310, the opening 200 is formed to gradually narrow the gap from the inside to the outside of the ring 100. When the wedge 310 as shown in FIGS. 5A and 5B is wide at the bottom and narrow at the top, it is used.

The reason is that the wedge 310 is tightly fitted into the opening 200 so that both end surfaces of the wedge 310 and the opposite end surfaces of the head 120 are closely coupled to each other.

In addition, in the third embodiment of the wedge 310, as shown in FIGS. 6A and 6B, a fixing piece 311 is formed in the center, and on both sides of the fixing piece 311, a locking jaw 313 is formed in the upper portion. The piece 312 is formed to have the same height as the height of the ring 100, and the opening 200 through which the wedge 310 of the third embodiment of the same configuration is inserted and fixed is both ends of the head 120 facing each other. The stopper 121 over which the locking jaw 313 is suspended is formed, so that when the wedge 310 of the third embodiment is inserted into the opening 200, the elastic piece 312 moves toward the fixing piece 311 and enters. However, when the entry of the elastic piece 312 is completed, the elastic piece 312 is returned to its original position, and the locking jaw 313 is caught by the stopper 121 to achieve a strong and stable coupling.

In addition, the snap ring (S) of the present invention uses one ring 100a to form a circle as shown in Fig. 3a, or uses two semicircular rings 100b as shown in Fig. 3b, or Fig. As shown in 3c and 3d, 4 rings 100c of 1/4 size can be used. can

When the snap ring (S) is formed using the 1/4-sized ring 100c shown in FIG. 3C, the head part 120 is formed in two mutually facing places, and an opening ( 200) to connect and install the opening 200 by means of a fixing means 300, and the ends of the rings facing each other in the other two places can be used in a surface contact with each other.

In addition, as shown in FIG. 3D, when the snap ring (S) is formed using four rings 100c of 1/4 size, each head part 120 is formed at the end of each ring 100, and the The opening 200 may be formed between the heads 120 , and the respective openings 200 may be connected and installed using a fixing means 300 .

In addition, when there are four or more rings 100 forming the snap ring S of the present invention, the head 120 is formed at the end of the selected ring 100 and the ends of the remaining rings 100 are in surface contact with each other. An opening 200 is formed between the ends of the ring 100 on which the head 120 is formed, and the fixing means 300 is connected to the opening 200 to be used.

The snap ring of the present invention described above, as described in the above effect, by forming at least one ring forming the snap ring to form a snap ring having a diameter of various sizes, thereby increasing the size of the installation parts. It can be used regardless of application, and by connecting and installing the opening forming the snap ring as a fixing means to improve the durability of the snap ring, the installation parts can be installed when a plurality of installation parts are overlapped or some are installed in surface contact with each other It has the advantage of being stably fixed without moving from the position.

Claims

In the snap ring for stably fixing a plurality of installation parts fixed in surface contact without moving from an installation position,

The snap ring is made of one or more rings 100 , and an opening 200 is formed between the ends of the rings so that the ends of the rings face each other and are spaced apart. A snap ring, characterized in that the opening formed between the ends of the ring is fixed by fitting into the opening, and fixing means (300) for interconnecting the ends of the ring is installed.
The method of claim 1,

The ring 100, the thickness of the outer periphery (OT) is formed to be thicker than the thickness (IT) of the inner periphery, the outer periphery of the thick ring has a coupling portion 110 that is fitted to the installation part and coupled to the outer peripheral surface of the ring Snap ring, characterized in that formed to protrude along the.
3. The method of claim 2,

The coupling portion 110, the upper portion is formed as a horizontal plane (111a), and the fitting hole 111 formed by forming an obtuse-angled inclined surface 111b having a downward inclination at both ends of the horizontal surface, and the inclined surface of the one side Snap ring, characterized in that by forming a horizontal support portion (112) that supports and supports the installation parts at the bottom.
The method of claim 1,

A head portion 120 larger than the outer diameter of the ring is formed at the end of the ring 100, and both sides and lower surfaces of the head portion are formed as flat surfaces.
The method of claim 1,

The opening 200 is a snap ring, characterized in that formed to maintain the same distance from the inside to the outside of the ring.
The method of claim 1,

The opening 200 is a snap ring, characterized in that the gap is gradually narrowed from the inside to the outside of the ring.
The method of claim 1,

The fixing means 300 is located in the opening and the wedge 310 and the height (H) of the ring formed at the same height. A snap ring, characterized in that the side plate 320 and the lower plate 330 separated from the head 120 are formed on both sides of one side and the lower side of the wedge.
8. The method of claim 7,

The wedge 310 is formed to match the opening, and the upper portion of the wedge formed to match the opening is formed to have the same shape as the coupling portion 110 .
8. The method of claim 7,

Both side end surfaces of the wedge (310) are snap ring, characterized in that formed to be in surface contact with the end surface of the head (120).
8. The method of claim 7,

The wedge 310, the fixing piece 311 is formed in the center, and the elastic piece 312 with the locking jaws 313 formed on both sides of the fixing piece is formed at the same height as the upper end of the outer periphery of the ring, , Snap ring, characterized in that the stopper 121 is formed on the end of the head portion (120) over which the locking jaw hangs.
8. The method of claim 7,

The upper end of the side plate (320), when the coupling part is coupled to the coupling hole of the installation part, a snap ring, characterized in that located under the coupling part so as not to cause interference between the coupling hole and the side plate.
The method of claim 1,

The ring 100 forming the snap ring is divided into a plurality of rings, and a head is formed at one end of some of the plurality of rings, and the other end has no head, or a ring without a head at both ends. Snap ring characterized in that using.