JP2014008383A - Rotary structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure preventing the fitting of a rotor from being lost and preventing free turning in a rotary structure formed by attaching a rod-like object to the rotary body.SOLUTION: The rotary structure comprises a body 1 and a rotary ring 2 as a rotor. The body 1 includes a support 31 and a top plate 32, and a side face of the support 31 is formed from a flat surface 33 and a curved surface 34. Pin holes 21 are bored in the rotary ring 2, and a pin 41 is inserted through the pin holes 21. The pin 41 is inserted from one pin hole 21, passes through outside the flat surface 33 to be inserted through another pin hole 21, and a safety pin 4 is closed.

Description

  The present invention relates to a rotating structure in which a rod-like object is inserted into a rotating body attached to a main body and rotated.

  In order to lock a name tag on a sheet-like material such as a cloth of clothing, a method of stabbing a needle such as a safety pin or an insect pin was generally used, but in this method, the sheet-like material was damaged. There is a possibility of making a hole. As a method for preventing this damage, the present inventor proposes a “fastener” in Document 1.

Reference 1

Utility Model Registration No. 3132847 Registration Gazette

  In the fastener of literature 1, the rotation structure for rotating the safety pin attached to the fastener is provided. 6 (a) and 6 (b) are exploded perspective views as seen from both the front and back sides for explaining this prior art rotating structure, and as shown in the respective drawings, a rotating portion which is a rotating body. 5 has a disc shape as a whole, and has a fitting claw 51 formed on the back surface thereof. The fitting claw 51 is an annular fitting portion formed on the front side surface of the outer cylinder 6 which is a part of the main body. It fits in 61 and makes the rotation part 5 rotatable. A mounting hole 52 is formed on the surface of the rotating portion 5 to insert a safety pin or the like.

  However, in this structure, in order to fit the fitting claw 51 into the fitting portion 61 by slaughtering, the fitting claw 51 slightly expands and enters the inner side beyond the fitting portion 61. The protrusion width of the claw 51 can be formed only within a range where the resin can be bent, and this protrusion width is only small. Therefore, there is a case where the fitting between the fitting claw 51 and the fitting portion 61 is lost due to wear or impact, and once the fitting is lost, the rotating portion 5 is detached from the outer cylinder 6. .

    Further, in this structure, the rotation is free and the rotation may be induced by the vibration of the outer cylinder 6 or the like, and the rotation may be performed independently of the user's intention.

  Accordingly, an object of the present invention is to provide a rotating structure that does not lose the fitting of the rotating body and does not rotate freely in order to solve this problem.

  In order to achieve the above object, the present invention provides a rotating structure comprising a rotating body, a main body to which the rotating body is attached, and a hole for attaching a rod-like object to the rotating body, and a column formed on the outer surface of the main body. And a top plate formed on the top thereof, a support shaft is formed, the rotary body is formed in a ring shape that can be fitted on the support shaft, and two holes are drilled in the side of the rotary body Then, after fitting the rotating body to the support shaft, the tip of the rod-like object is inserted from one of the holes, and through the space formed by the top plate, the support column, and the rotating body, The rod-shaped object can be made to pass outside the hole.

  Here, the rotating body and the main body are resin-molded, and the top plate is, for example, a disk shape, and is rotated so that the inside of the ring-shaped rotating body slides along the outer peripheral surface of the top plate. . Then, for example, the rod-shaped object closes the safety pin after allowing the safety pin to pass. As a result, the top plate hinders the movement of the safety pin unless the safety pin is opened and removed, so that it is possible to prevent the rotating body from falling off the main body and losing the rotating structure.

  Furthermore, in the present invention, a part of the main body forms a part that comes into contact with the rod-like object. For example, the thickness and shape of the column are changed, and the rod-shaped object comes into contact with the portion, and the frictional force generated thereby suppresses free rotation.

  A rotating structure comprising a rotating body, a main body to which the rotating body is attached, and a hole for attaching a rod-like object to the rotating body, a column formed on the outer surface of the main body, and a top plate formed on the top thereof The pivot body is formed, and the rotary body is formed in a ring shape that can be fitted to the spindle. Two holes are formed in the side of the rotary body, and the rotary body is used as the spindle. After fitting, the tip of the rod-shaped object is inserted from one of the holes, and the rod-shaped object is moved out of the other hole through the space formed by the top plate, the support column, and the rotating body. By allowing them to communicate with each other, the rotating structure can be easily assembled and the rotating structure itself can be maintained firmly.

  Furthermore, in the present invention, since the part of the main body forms a portion that contacts the rod-like object, the rotating body cannot freely rotate. For example, the rod-like object is a safety pin with a name tag. In this case, the position of the name tag can be kept at a desired position.

  Embodiments of the present invention will be described with reference to the accompanying drawings. Here, FIG. 1 is an exploded perspective view illustrating a rotating structure according to an embodiment of the present invention, FIG. 2 is an exploded front view of the rotating structure, and FIG. 3 is a safety pin mounted after the rotating structure is assembled. 4 is a top view for explaining a state in which the safety pin is rotated, and FIG. 5 is a top view for explaining another embodiment.

  The rotating structure of the present invention includes a main body 1 formed of resin and a rotating ring 2 that is a rotating body attached to the support shaft 3. The support shaft 3 includes a column 31 that rises integrally from the upper surface of the main body and a circular top plate 32 that is integrally formed on the top of the column 31.

  The side surfaces of the support columns 31 are formed of a flat surface 33 and a curved surface 34 in a state of facing each other, and the widths of the flat surfaces 33 are formed smaller than the widths of the curved surfaces 34. The top plate 32 is circular, and its diameter is slightly smaller than the inner diameter of the rotating ring 2.

  Two pin holes 21 are formed in the side of the rotating ring 2, and the positions thereof are not on the center line of the rotating ring 2, but the line connecting the two pin holes 21 is a flat surface 33 of the column 31. It is formed at a position on the outer side.

  Inside the rotation ring 2, a pair of inner claws 22 are formed in the vicinity of the center of the height along the circumferential direction of the rotation ring 2. The distance between the inner claws 22 is slightly smaller than the outer diameter of the top plate 32.

  Next, the assembly and operation of this rotating structure will be described. First, the rotation ring 2 is fitted onto the support shaft 3 from above. At this time, since the distance between the inner claws 22 is formed slightly smaller than the outer diameter of the top plate 32, the inner claws 22 do not move beyond the outer peripheral surface of the top plate 32 to the bottom surface. Instead, the force is applied and the inner claw 22 is contracted or the entire rotating ring 2 is deformed to push down to a predetermined position.

  When the inner claw 22 reaches a predetermined position below the bottom surface of the top plate 32, the rotation ring 2 can freely rotate around the top plate 32. The rotating ring 2 is temporarily attached by the top plate 32 and the inner claw 22 and cannot be easily removed. However, if a large force is applied to the rotating ring 2, the rotating ring 2 cannot be removed from the support shaft 3. It is ready.

  In this embodiment, the pin 41 of the safety pin 4 will be described as a rod-like object, and the pin 41 is passed through the two pin holes 21. In doing so, as described above, the rotating ring 2 is rotated to a position where the line connecting the two pin holes 21 is parallel to the flat surface 33 of the support column 31, and this state is maintained, and the pin 41 is moved to one side. Then, the safety pin 4 is closed through the outside of the flat surface 33 and connected to the other pin hole 21.

  Before the pin 41 was brought into communication with the pin hole 21, the support shaft 3 and the rotating ring 2 were in a temporarily fastened state, but after the pin 41 was brought into communication with the pin hole 21, the top plate 31 Since the pin 41 is in a rejected state, the support shaft 3 and the rotating ring 2 will not come off.

  That is, in the conventional rotating structure, there is a concern that the fitting between the fitting claw 51 and the fitting portion 61 may be lost due to wear or chipping. By the combination of the moving ring 2 and the pin 41, the fitting state is not lost.

  When the pin 41 is parallel to the flat surface 33, the pin 41 and the flat surface 33 are not in contact with each other, and the pin 41 is in a positional relationship in which it can move in the pin hole 21 with play.

  From this position, a force is applied to the safety pin 4 to rotate the rotating ring 2, and when the pin 41 starts to face the curved surface 34 as shown in FIG. 4, the outer diameters of the curved surfaces 34 are flat surfaces 33. Since the pin 41 is larger than the width between the pins 41, the pin 41 strongly abuts against the curved surface 34. However, the pin 41 may be pressed against the pin hole 21, and the pin 41 is biased to the curved surface 34, and is rotated. The rotation of the ring 2 is suppressed, and the rotation ring 2 and the safety pin 4 rotate freely unless a force is applied to overcome the frictional force generated by the negative force applied to the pin 41 by the curved surface 34. It is not possible.

  In the embodiment described above, the rotation of the pin 41 is controlled by the difference in the outer diameter of the curved surfaces 34 and the width of the flat surfaces 33. For example, as shown in FIG. As an alternative, a pin (not shown) may contact the corner to control the rotation.

  In addition, a portion that abuts the pin may be provided on the bottom surface of the top plate or the side surface of the main body instead of the shape of the support column, and friction can be generated here.

  The present invention is not limited to the above embodiment. What has substantially the same configuration as the matters described in the claims of the present invention and exhibits the same operational effects belongs to the technical scope of the present invention.

  Since the rotation structure of the present invention can be used for a device for attaching a name tag or the like to be secured with a safety pin, for example, it is useful in a wide field such as a school or a company.

FIG. 1 is an exploded perspective view illustrating a rotating structure according to an embodiment of the present invention. Exploded front view of this rotating structure Top view of the state where the safety pin is mounted after assembling this rotating structure Top view explaining the state where the safety pin is rotated Top view illustrating another embodiment Exploded perspective view from the front and back direction for explaining the pivoting structure of the prior art

DESCRIPTION OF SYMBOLS 1 ... Main body, 2 ... Rotating ring, 3 ... Support shaft, 21 ... Pin hole, 31 ... Post, 32 ... Top plate, 4 ... Safety pin, 41 ... ·pin.

Claims (2)

  A rotating structure comprising a rotating body, a main body to which the rotating body is attached, and a hole for attaching a rod-like object to the rotating body, a column formed on the outer surface of the main body, and a top plate formed on the top thereof The pivot body is formed, and the rotary body is formed in a ring shape that can be fitted to the spindle. Two holes are formed in the side of the rotary body, and the rotary body is used as the spindle. After the fitting, the tip of the rod-shaped object is inserted from one of the holes, and the rod-shaped object is passed outside the other hole through the space formed by the top plate, the support column, and the rotating body. A rotating structure characterized by being provided so as to be able to be made.   The rotating structure according to claim 1, wherein a part of the main body forms a part in contact with the rod-like object.

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