JP4164869B2 - Ring for connection - Google Patents

Description

    The present invention relates to a connecting ring.

  Conventionally, as this type, an opening is formed in a part of the ring in a cut shape, and one end side of the opening is rotated and inserted into the inside so that it can be opened. A connecting ring formed by a linear material that is locked to the other end side and can be closed is well known.

  In such a connecting ring, when the ends of the object to be connected are connected to both sides of the ring, the end of the object to be connected is moved along the ring due to an external force or the like. There is a problem that the parts gather in the same ring.

In order to solve such a problem, for example, the first open ends of the first and second half rings enter the spaces between the first and second open ends of the second and first half rings, respectively. In this way, each space is filled with the thickness of each open end, and a connecting ring is known (for example, Patent Document 1).
Japanese Utility Model Publication No. 5-72878

  In the prior art, the first and second half rings are connected and used with a single pin penetrating each open end, and the end of the connected object is simply connected, that is, with one touch. There is a problem that you can not.

  By the way, in recent years, in order to prevent accidental dropping of tools and the like in high-altitude construction, each tool is suspended on the operator's waist belt, etc. via a connecting ring, and the desired tool is removed from the connecting ring during work. After use, the tool is again carried through the connecting ring and carried.

  However, since the diameter of the suspension connection hole formed in the tool is about 3 mm at the maximum, there is a problem that a connection ring having a large diameter cannot be used.

  The problem to be solved is that it is possible to provide a connecting ring that can easily connect the objects to be connected and that can connect the objects to be connected to predetermined positions of the ring. Further, it is possible to provide a coupling ring that can be coupled even if the diameter of the suspension coupling hole formed in the tool is 3 mm at the maximum such as 2.6 mm.

According to the first aspect of the present invention, the base end of the opening / closing body is pivotally connected to one side of the opening formed in the ring body, and the tip of the opening / closing body can be opened / closed to the other side of the opening. Provided to be connectable , the opening / closing body is provided with a protrusion toward the inside of the ring body, and an elastic body is provided between the ring body and the opening / closing body,
The ring body is formed by bending a round bar, and a first folded part is connected to one side of the linear part toward the inside of the ring body, and a second part is connected to the other side of the linear part. 2 fold-back portions are connected, and the first and second fold-back portions are formed in a circular arc shape that is substantially ½ of the circumference, and from one side portion side formed in the one-side fold-back portion. An extension portion is extended, and the extension portion is formed in an arc shape that forms approximately 1/4 of a circumference having substantially the same center and a radius of curvature as the first turn-up portion, and is directed toward the inside of the ring body. And provided with a straight end slightly projecting substantially in parallel with the linear portion at the end of the extension,
The opening / closing body includes an outer surface provided to connect to the outer peripheral surface of the one side portion, and left and right side portions provided integrally to the left and right of the outer surface portion and connected to the left and right of the one side portion. And projecting the left and right side surfaces toward the part of the ring body facing the opening with a gap from the part,
The elastic body is a cylindrical coil spring, and is loosely fitted between the left and right side surfaces, and one end of the elastic body is connected to the outer surface and the other end is connected to the linear end. This is a connecting ring.

The invention according to claim 2 is the connecting ring according to claim 1, wherein a recess is formed on one side or the other side of the protrusion .

  According to the first aspect of the present invention, even if an object to be connected such as a rope, a ring or a tool connected to the ring moves along the ring by providing the opening and closing body with a protrusion toward the inside of the ring, this is In addition to being blocked by the portion, the connection of the object to be connected is inserted through the opening, and the opening / closing body is connected, so that the operation can be easily performed.

In addition, by providing a protrusion on the opening / closing body toward the inside of the ring, even if the connected object connected to the ring tries to move along the ring, this can be prevented by the protrusion, and the connection of the connected object is also an opening. It is easy to operate because it only needs to be inserted through and connected to the opening / closing body. Moreover , since the coil spring is interposed between the extension portion and the opening / closing body, the elastic body can be attached relatively easily.

Furthermore, even if a strong pushing force is applied to the opening / closing body, damage or the like can be prevented by deformation of the first folded portion and the extension portion formed in an arc shape that forms approximately ¾ of the circumference. it can.

According to invention of Claim 2 , even if the to-be-connected tool connected with the one side or other side of a ring tries to move to the other side or one side, this can be blocked | prevented by a recessed part.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiment described below does not limit the contents of the present invention described in the claims of the utility model registration. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

  1 to 5 show a first embodiment. A connecting ring 1 includes a ring main body 2 and an opening / closing body 7, and an opening 3 is formed in a part of the ring main body 2. The opening / closing body 7 is rotatably provided on the one side 11 side of the one end side, and the other side 5 on the other end side of the opening 3 is connected to be openable / closable. The ring body 2 is formed by bending a round bar, and the diameter d of the round bar is formed to be 1 mm or more and 3 mm or less, for example, 2.5 mm. The ring body 2 has a first folded portion 9 connected to one side of the linear portion 8 facing the inside of the ring body 2, and a second folded portion 10 connected to the other side of the linear portion 8. Yes. In addition, the linear part 8 does not need to be a straight line, and should just be substantially linear. Further, the first and second folded portions 9 and 10 are formed in an arc shape that forms approximately ½ of the circumference. Further, an extension portion 12 is extended from the one side portion 11 side formed in the folded portion 9 on one side. The extension portion 12 is formed in an arc shape that forms approximately 1/4 of the circumference having substantially the same center and curvature radius as the first folded portion 9, and is provided inward. A linear end portion 13 is formed at the end of the extension portion 12 so as to protrude slightly in parallel with the linear portion 8.

  The opening / closing body 7 has a proximal end connected to one side 11 via a shaft 14 and a distal end 4 connected to the other side 5 of the opening 3 so as to be opened and closed. In addition, both can be connected by the front-end | tip 4 latching inside the other side part 5. FIG. Further, the opening / closing body 7 is provided with a protrusion 15 inward. More specifically, the opening / closing body 7 includes an outer surface portion 16 provided so as to be connected to the outer peripheral surface 9 a of the first folded portion 9, and left and right sides of the first folded portion 9 provided integrally with the left and right sides of the outer surface portion 16. And left and right side surface portions 17 provided so as to be connected to the side surface 9b. A part of the left and right side surface portions 17 protrudes toward the straight portion 8 with a distance a from the straight portion 8 to form the protrusion 15. Further, a first recess 18 is formed at a portion of the protrusion 15 that faces the first folded portion 9. Similarly, the second concave portion 19 is formed in an arc shape of approximately ¼ of the circumference at a portion of the protrusion 15 that faces the second folded portion 10. Therefore, the opening / closing body 7 is provided in a lever shape with the tip 4 as an action point, the shaft 14 as a fulcrum, and a connection portion with an elastic body 20 described later as a power point. Note that at least one of the first recess 18 and the second recess 19 may be provided.

  Further, an elastic body 20 made of a coil spring is interposed between the extension 12 and the opening / closing body 7, and the opening / closing body 7 is biased by the elastic body 20. The elastic body 20 is extended and contracted in parallel with the protruding direction of the protrusion 15, and one end of the elastic body 20 is connected to the outer surface portion 16 and the other end is connected to the linear end portion 13. The left and right sides of the elastic body 20 are sandwiched between the substantially half-cylindrical cylindrical portions 17a formed so as to project from the left and right sides of the side surface 17, and are prevented from coming off. In the drawing, b indicates the longitudinal direction of the cylindrical elastic body 20 made of a cylindrical coil spring, that is, the length in the expansion / contraction direction.

  Next, the operation of the above configuration will be described. For example, when the other connected object 22 such as a tool is connected in a state where one connected object 21 as a rope is connected to one side of the ring body 2 to a body wearing tool (not shown) such as a waist belt of an operator, the outer surface portion 16 is pushed inward, and the opening / closing body 7 is rotated about the shaft 14 as a rotation center, so that the one side portion 11 is separated from the other side portion 5. At this time, since the elastic body 20 comes to be compressed, a repulsive force in the extending direction is generated in the elastic body 20, and the opening / closing body 7 is operated against this repulsive force. At this time, the first folding part 9 does not move, but the opening / closing body 7 rotates around the shaft 14 provided on the third one side part 11 side at the end, thereby opening and closing. The inclination of the body 7 can be increased, and as a result, the length of separation between the one side portion 4 and the other side portion 5 can be increased.

  Next, after inserting the hole 22a of the connected object 22 from between the one side part 11 and the other side part 5, the other side part 5 is inserted into the hole 22a to connect the connected object 22. When the force for pushing the outer surface portion 16 is weakened, the opening / closing body 7 rotates in the reverse direction around the shaft 14 by the restoring force of the elastic body 20, and the one side portion 11 is locked to the other side portion 5 to Connect.

  During this use, for example, even if one of the connected objects 21 tries to move to the second folded portion 10 side, this is blocked by the first recess 18 in the protrusion 15. Similarly, even if the other connected object 22 tries to move toward the first folded-back portion 9 side, this is blocked by the second recess 19 in the protrusion 15, thereby preventing the connected objects 21 and 22 from moving. be able to.

  In addition, even if a strong pushing force is applied to the opening / closing body 7, the first folded portion 9 and the extension portion 12 formed in an arc shape that forms approximately 3/4 of the circumference are prevented from being damaged. can do.

As described above, in the above-described embodiment, by providing the projecting portion 15 toward the inside of the ring main body 2 on the one side portion 4 side, a connected manual tool, a tool such as an electric tool, a connected object such as a rope or a ring. Even if 21 and 22 try to move along the ring body 2, this can be prevented by the protrusion 15, and the connection of the objects to be connected 21 and 22 is only inserted and closed through the opening 3 so that the operation becomes easy. .

Further, provided the projection 15 towards the inside of the ring body 2 before Symbol closing body 7 in the embodiment, the extension 12 is provided toward the inside of the ring body 2 on the one side 11, the extension By providing an elastic body 20 that biases the opening / closing body 7 between the portion 12 and the opening / closing body 7, the movement of the connected objects 21, 22 can be prevented by the protrusion 15 and the extension By attaching the elastic body 20 between the portion 12 and the open / close body 7 so as to close the open / close body 7 to a relatively elongated spring such as a coil spring, the elastic body 20 can be attached relatively easily. Can do.

Further, the by along the butt portion 15 providing the elastic body 20 in the embodiment, be optimal elastic force of the elastic body 20 can as much as possible greater length b of the elastic body 20 it can.

Further, in the above embodiment by loosely fitting the elastic body 20 between the left and right side portions 17 of the front Symbol connecting member 20, it is possible to attach the elastic member 20 to position the right and left more easily.

Further, by the above embodiment in which a recess 18, 19 on one side and the other side of the front Symbol projection 15, the connector 21 which is connected to one side of the ring 1, an attempt to temporarily move to the other side This can also be prevented by the recess 18, and this can be prevented by the recess 19 even if the connected tool 22 connected to the other side of the ring 1 tries to move to one side.

Further, the by a 3mm diameter d 1 mm or more round rod forming the-rings body 2 in the embodiment, even in the hole 22a, for example, about 3mm, which is formed to be connector 22, the hole 22a Since the ring main body 2 can be passed through, various tools and the like can be suspended and detachably connected, and can also be used for a waist belt or the like.

  In addition, in the embodiment, the extension portion 12 extending from the third one side portion 11 side of the first folded portion 9 toward the inside of the ring body 2 and the third one side portion 11 side are based on the third portion 11 side. An opening / closing body 7 having an end rotatably and having the one side 4 and an elastic body interposed between the extension 12 and the opening / closing body 7 and energizing the opening / closing body 7 to be closed. 20, the one side portion 4 side can be largely rotated against the elastic force of the elastic body 20 without bending the first folded portion 9 itself. The length of separation from the portion 5 can be increased, and the connected objects 21 and 22 can be easily connected.

  Further, in the embodiment, the first and second folded portions 9 and 10 are formed in an arc shape that forms approximately one half of the circumference, and the extension portion 12 is substantially the same as the first folded portion 9. The elastic body 20 is formed in an arc shape that forms approximately 1/4 of a circumference having the same radius of curvature, and one end of the elastic body 20 is connected to the end of the extension portion 12, and the other end of the elastic body 20 is connected to the outer surface By being connected to the portion 16, even if a strong pushing force is applied to the opening / closing body 7, the first folded portion 9 and the extension portion 12 formed in an arc shape that forms approximately ¾ of the circumference. Breakage or the like can be prevented by the deformation of.

  As described above, the connecting ring according to the present invention may be one in which the insulator is not a plate material but a round bar such as a ring main body, and can be applied to various uses.

It is sectional drawing of the closed state which shows Example 1 of this invention. It is the xx sectional view taken on the line of FIG. It is sectional drawing of the open state which shows Example 1 of this invention. It is a front view of the closed state which shows Example 1 of this invention. It is a perspective view of the closed state which shows Example 1 of this invention.

Explanation of symbols

2 Ring body 3 Opening
4 Tip 5 Other side 7 Opening and closing body
8 Linear portion 9 First folded portion 9a Outer peripheral surface 9b Left and right side surfaces
10 Second folding part
11 One side
12 Extension
13 Straight end
15 Projections
16 Exterior
17 Left and right side
18 First recess
19 Second recess
20 Elastic body
a interval

Claims (2)

A base end of the opening / closing body is pivotally connected to one side of the opening formed in the ring body, and a tip of the opening / closing body is provided to be openable and connectable to the other side of the opening. Protruding toward the inside of the ring body on the body, provided with an elastic body between the ring body and the opening and closing body,
The ring body is formed by bending a round bar, and a first folded part is connected to one side of the linear part toward the inside of the ring body, and a second part is connected to the other side of the linear part. 2 fold-back portions are connected, and the first and second fold-back portions are formed in a circular arc shape that is substantially ½ of the circumference, and from one side portion side formed in the one-side fold-back portion. An extension portion is extended, and the extension portion is formed in an arc shape that forms approximately 1/4 of a circumference having substantially the same center and a radius of curvature as the first turn-up portion, and is directed toward the inside of the ring body. And provided with a straight end slightly projecting substantially in parallel with the linear portion at the end of the extension,
The opening / closing body includes an outer surface provided to connect to the outer peripheral surface of the one side portion, and left and right side portions provided integrally to the left and right of the outer surface portion and connected to the left and right of the one side portion. And projecting the left and right side surfaces toward the part of the ring body facing the opening with a gap from the part,
The elastic body is a cylindrical coil spring, and is loosely fitted between the left and right side surfaces, and one end of the elastic body is connected to the outer surface and the other end is connected to the linear end. Features a connecting ring. The connecting ring according to claim 1, wherein a recess is formed on one side or the other side of the protrusion .

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