JP5626527B2 - Winding color - Google Patents

Description

  The present invention provides a winding shaft for supporting a winding core for each of a plurality of belt-like sheets, and winding the belt-like sheets all around the winding core at the outer peripheral surface of a central drive shaft constituting the winding shaft. It relates to the winding collar to be installed.

  Conventionally, as the above-described winding shaft, there is one in which a large number of winding collars 2 are arranged in a line on the outer peripheral surface of the center drive shaft 1 as shown in FIG. The winding core C is mounted on the outer periphery of the winding collar 2, and the center drive shaft 1 is rotationally driven during winding of the belt-like sheet. As shown in FIGS. 13 and 14, the winding collar 2 is an annular collar body that is rotatably attached to the central drive shaft 1 by a bearing 3 and receives rotational force from the central drive shaft 1 through rotational force transmitting means 4. 5 and inclined grooves 6 formed in a plurality of locations in the circumferential direction of the outer peripheral surface of the collar body 5 and extending in the circumferential direction of the collar body 5, and a core disposed on the bottom surface of each inclined groove 6. The spherical body 7 as a movable gripping body for gripping the inner peripheral surface of C, and the spherical body 7 can be moved along the bottom surface between the deep part and the shallow part of the inclined groove 6 at each position corresponding to the spherical body 7 and dropped off. Some have a holding portion 8 that cannot be held, and an annular retainer 9 that is rotatably attached to the outer peripheral surface of the collar body 5. In the winding collar 2, the rotational force of the center drive shaft 1 acts on the collar body 5 during winding, and the tension of the belt-like sheet acts on the winding core C so as to prevent its rotation. In addition, the retainer 9 rotates with respect to the collar body 5 in the direction of the arrow shown in FIG. 13, and the sphere 7 automatically moves to the shallow portion of the inclined groove 6 so as to largely protrude from the outer peripheral surface of the retainer. The circumferential surface is pressed and gripped, whereby the core C is restrained on the collar body 5, and the core C and the collar body 5 rotate together and are received by the collar body 5 from the central drive shaft 1. The rotational force can be transmitted to the core C. The means 4 for transmitting the rotational force to the winding collar 2 includes a friction piece 10 held at the central drive shaft 1 so that the upper end of the winding shaft can protrude from the outer peripheral surface of the central drive shaft 1, and the friction piece 10 It consists of an air tube 11 that can be expanded and contracted by compressed air to push up in contact with the lower end, and can transmit a rotational force according to the frictional force between the friction piece 10 and the inner peripheral surface of the collar body 5. (See Patent Document 1 below).

  In general, the widths of the winding collars 2 are the same, and substantially the same rotational force is transmitted from the central drive shaft 1 to the winding collars 2 via the rotational force transmitting means 4. The rotational force transmitted to C is also substantially constant. The winding core C has the same or substantially the same width as the width of the belt-shaped sheet to be wound. The rotational force, that is, the winding torque generated in the winding core C attached to the winding shaft is proportional to the number of winding collars 2 that hold the inner periphery of the winding core C. Therefore, on the premise that the winding core is mounted at a normal position with respect to the winding collar, the width of the plurality of belt-like sheets that are simultaneously wound using one winding shaft is equal to the width of the winding collar. When it is an integral multiple, the winding tension per unit width generated in each belt-like sheet is automatically substantially equal regardless of the width. Such a winding shaft is often used for winding a wide strip sheet while dividing it into a plurality of strips with a slitter.

  However, recently, the specifications regarding the number of strips and the width of the belt-like sheet wound at the same time can be variously changed. Further, it is required to deal with such a change in the winding specification with only one winding shaft. Therefore, even if the belt-like sheets that are wound all at once have the same width, the width is often not an integral multiple of the width of one winding collar. Therefore, the belt-like sheet deviates from the normal position with respect to the winding collar group and reaches the winding shaft, and the end surface of the winding core C can be arranged on the sphere 7 of the winding collar 2 as shown in FIG. It may be unavoidable. In that case, if the core is a paper tube, during winding of the belt-like sheet, the pressing force by the sphere 7 concentrates on the corners of the end surface and the inner peripheral surface of the paper tube, and plastic deformation or breakage occurs in that portion. At the same time, since the rotational force of the collar body 5 of the winding collar 2 cannot be transmitted to the core C, the necessary winding tension cannot be obtained, and the belt-type sheet winding roll becomes defective. Is produced. Further, when the winding core is relatively hard such as a plastic tube, the contact portion between the sphere 7 protruding in the radial direction of the winding collar 2 and the winding core C is inclined. The component force in the width direction of the core acts on the core C, so that the core C is easily displaced in the width direction with respect to the winding collar 2 during winding of the belt-like sheet. In particular, when a small winding tension is required, the winding core is liable to be displaced in the width direction, whereby a step is generated on the end face of the winding roll, and the winding roll tends to be defective.

  Here, in order to solve the above-described problems, it is only necessary to make it possible to stop and restore the rotational force transmission function from the color main body of the winding collar to the core. That is, it is only necessary that the rotational force transmitted from the central drive shaft to the collar body cannot be transmitted from the collar body to the core, or can be transmitted from the collar body to the core. That is, when the end surface of the winding core is disposed at an inappropriate position with respect to the winding collar on the winding shaft described above, the winding collar corresponding to the end surface of the winding core is rotated from the collar body to the winding core. Before the winding core is installed, it is impossible to transmit the wire. And, in order to prevent the winding tension per unit width of the belt-like sheet to be wound all at once, the end face of the winding cores that are simultaneously mounted on one winding shaft is in relation to the winding collar. For the cores other than the core disposed at an inappropriate position, select the appropriate winding collar that holds the core, and the rotational force from the collar body of the winding collar to the core. In such a manner that the number of winding collars that can transmit the rotational force to a single core is made in advance.

  In this way, as a conventional winding collar capable of switching between stopping and resuming the rotational force transmission function from the collar body to the winding core, the outer cylinder is formed from windows formed in a plurality of locations along the circumferential direction. A claw provided so as to be able to project and retract in the cylinder radial direction, and a claw support member provided to be displaceable outward in the cylinder radial direction by air pressure while supporting the claw on the inner side of the outer cylinder. A core that is protruded and fitted to the outside of the outer cylinder is held by the outer cylinder by a claw pressed against the inner surface of the outer cylinder, and another outer cylinder having a window in which the nail can be projected and retracted is provided on the outer side of the outer cylinder. By fitting the outer cylinders so as to be displaceable in the circumferential direction and rotating the two outer cylinders so that they are relatively out of phase, the protrusion of the claws and the protrusion of the claws from the outer surface of the outermost outer cylinder are allowed. Some have made it possible to select a blocked state (see Patent Document 2 below) .

  However, this winding collar has a complicated structure, is expensive to process, takes time to switch the nail protrusion prevention function, and the initially set nail protrusion prevention function may change unexpectedly. In addition, the claw mounting screws loosened during operation, and the screws and claws may drop off, and compressed air may leak out.

JP 2001-106397 A JP-A-3-238254

  It is an object of the present invention to provide a winding collar with a simple structure that can be reliably switched in a short time by a simple operation by stopping and restoring the rotational force transmission function from the collar body to the winding core. .

  Therefore, the present invention is supported by penetrating the winding core for each of the plurality of belt-like sheets, and rotatably mounted on a central drive shaft constituting a winding shaft for winding the belt-like sheets all around the winding core, And an annular collar body that receives a rotational force from the central drive shaft via a rotational force transmission means, and formed in a plurality of circumferential directions on the outer peripheral surface of the collar body, each extending in the circumferential direction of the collar body. An inclined groove, a movable gripping body disposed on the bottom surface of each inclined groove, and the movable gripping body at each position corresponding to the movable gripping body on the bottom surface between the deep portion and the shallow portion of the inclined groove. And an annular retainer rotatably mounted on the outer peripheral surface of the collar body, the movable gripper moving to the shallow portion of the inclined groove and By engaging the inner peripheral surface of the winding core, In the winding collar capable of transmitting the rotational force received by the collar body to the winding core, a recessed portion formed on the outer peripheral surface of the collar body, and being accommodated in the recessed portion in the circumferential direction of the collar body A displacement member that is constrained and partly or entirely elastically displaceable downward, a displacement engaging portion formed on a part of the displacement member that is displaceable or partly displaceable of the displacement member, An engaged portion disposed on an inner peripheral surface of the retainer so as to be engageable with the displacement engaging portion when the movable gripper is at a predetermined position in a deep portion of the inclined groove, and the displacement member on the outer peripheral surface of the retainer And an opening for receiving an operation member for pushing down the displacement member.

  According to the present invention, since the retainer can be selectively restrained with respect to the collar body and in a rotatable state, the movable gripper cannot grip the inner peripheral surface of the core and can grip it. It can be. When the retainer is made rotatable with respect to the collar body, the movable gripping body automatically moves to the shallow part of the inclined groove during winding of the belt-like sheet, and engages with the inner peripheral surface of the core. The amount of movement of the movable gripper to the shallow groove shallow part increases with the amount of sheet winding tension, and the amount of protrusion increases, so that the rotational force received by the collar body can be reliably transmitted to the core. Compressed air is not required. Since the engaged portion, the displacement engaging portion, and the displacement member are housed in the recessed portion inside the retainer, the engaged portion and the displacement engaging portion are disengaged against the operator's will. No worries. Therefore, regardless of the number of movable grippers that grip the inner peripheral surface of the core, switching between stopping and resuming the rotational force transmission function from the collar body to the core is ensured in a short time with a simple operation. Therefore, it is possible to provide a winding collar that is simple in structure and inexpensive. And by using the winding axis | shaft provided with the winding color | collar of this invention, it becomes possible to wind a several strip | belt-shaped sheet | seat simultaneously with sufficient quality, and can aim at the improvement of a yield.

  Further, the displacement member is constituted by a leaf spring, the displacement engagement portion is constituted by a hole or notch formed in the vicinity of the free end of the leaf spring, and the engaged portion is further provided on the inner peripheral surface of the retainer. By constituting the projection, the structure of the winding collar is further simplified, the processing and assembly are simplified, and a winding collar that is less likely to fail can be obtained.

Further, the leaf spring is a plate-shaped spring material that is folded back to have one end as the free end, and a portion from one end on the opposite side of the free end to the turn-back portion across the turn-back portion is a mounting portion,
The mounting portion is made to run along the bottom surface of the depressed portion, and the mounting portion is attached to the collar body by two pins disposed along the upper surface of the mounting portion near the bent portion and the tip of the mounting portion, respectively. By being fixed in a cantilever shape in the depression, it is possible to configure a winding collar without using a bottle or set screw that may drop off. In this way, it is possible to obtain a take-up collar that does not cause parts to scatter.

  Further, a display window is formed at a position corresponding to the displacement member on the outer peripheral surface of the retainer, and the portion of the displacement member that can be seen through the display window when the displacement engagement portion and the engaged portion are engaged, and the displacement engagement When the part is disengaged from the engaged part and the retainer rotates by a predetermined angle with respect to the collar body, the displacement member has a different color from the part visible from the display window. This makes it easy to know from the color of the display window whether the winding collar is capable of transmitting the rotational force of the collar body to the core. It helps to prevent the winding failure of the belt-like sheet due to recognition.

FIG. 1 is a front view of a winding collar according to an embodiment of the present invention. FIG. 2 is a plan view of a winding collar according to an embodiment of the present invention. FIG. 3 is a cross-sectional view taken along the line AA showing the main part of the winding collar in FIG. 4 is a cross-sectional view taken along arrow BB in FIG. FIG. 5 is a cross-sectional view showing a state in which the displacement engaging portion is detached from the engaged portion. FIG. 6 is a cross-sectional view showing a state in which the displacement engaging portion and the engaged portion are engaged. FIG. 7 is a plan view of a winding collar according to another embodiment of the present invention. 8 is a cross-sectional view taken along line A1-A1 in FIG. 9 is a cross-sectional view taken along the line A2-A2 in FIG. FIG. 10 is a cross-sectional view of a main part of a winding collar according to still another embodiment of the present invention. 11 is a cross-sectional view taken along the line DD in FIG. FIG. 12 is a front view showing a part of the friction winding shaft. 13 is a cross-sectional view taken along the line EE in FIG. 14 is a cross-sectional view taken along line FF in FIG.

  1 is a front view of a winding collar according to one embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a cross-sectional view showing an enlarged cross-sectional view taken along the line AA in FIG. 4 is an enlarged cross-sectional view taken along the line BB in FIG. The illustrated winding collar 2 is adapted to the friction winding shaft shown in FIGS. 12 to 14, and enables the rotation transmission function from the collar body 5 to the winding core C to be stopped and restored. A depressed portion 12 formed on the outer peripheral surface of the collar body 5, and a displacement member that is accommodated in the depressed portion 12 and restrained in the circumferential direction of the collar body 5, and a part thereof is provided to be elastically displaceable downward. 13, a displacement engaging portion 14 formed in a displaceable part of the displacement member 13, and the retainer 9, which can be engaged with the displacement engaging portion 14 when the movable gripping body 7 is at a predetermined position in the deep portion of the inclined groove 6. An engaged portion 15 disposed on the inner peripheral surface and an opening 16 formed at a position corresponding to the displacement member 13 on the outer peripheral surface of the retainer 9 are provided.

  In order to simplify the structure of the winding collar 2, in this embodiment, the displacement engaging portion 14 is constrained in the circumferential direction of the collar body 4 and held downward so as to be elastically displaceable on one displacement member 13. It has a function to do. That is, the displacement member 13 is formed of a plate spring provided in a cantilever shape in the depressed portion 12, and the displacement engagement portion 14 is formed of a hole formed near the free end of the plate spring 13. The engaged portion 15 is formed by a protrusion provided on the inner peripheral surface of the retainer 9, and the protrusion 15 protrudes from the inner peripheral surface of the retainer 9 with a spring pin 17 in a hole formed in the outer peripheral surface of the retainer 9. It is formed by fitting. Further, the depressed portion 12 accommodates at least the leaf spring 13, and the projection 15 can move a distance corresponding to the amount of movement between the deep portion and the shallow portion of the inclined groove 6 of the movable gripping body 7. However, in order to facilitate processing, the collar body 5 is formed so as to make a round.

  As shown in FIG. 3, the leaf spring 13 bends one plate-like spring material at an acute angle so that one end is a free end, and the other end opposite to the free end is sandwiched between the bent end 13a and the folded end. A portion between the bent portion 13a is set as a mounting portion 13b to the depressed portion 12, and the mounting portion 13b is set along the bottom surface of the depressed portion 12, and the mounting portion 13b is provided near the tip of the bent portion 13a and the mounting portion 13b, respectively. The mounting portion 13b is mounted on the collar body 5 by two spring pins 18 disposed along the upper surface of the inner surface of the recess 12 so as to be cantilevered. This makes it easy and reliable to mount the leaf spring 13 to the depressed portion 12. Both ends of the spring pin 18 are fitted into holes formed on the side surfaces of the collar body 5, and the tip portion 13 c of the mounting portion 13 b of the leaf spring 13 is bent so as to wind the spring pin 18. The leaf spring 13 is held by the two spring pins 18 so that the collar body 5 cannot move in the circumferential direction of the collar body 5 and does not fall off.

  Next, the operation for stopping and restoring the rotational force transmission function from the collar body 5 to the core C in the winding collar 2 configured as described above will be described. The winding collar 2 shown in FIG. 3 is in a state where rotational force can be transmitted from the collar body 5 to the core C, and the retainer 9 is not restrained in the rotational direction with respect to the collar body 5. Also, the sphere 7 shown in FIG. In this state, the retainer 9 cannot be further rotated clockwise from the position shown in FIG. 3 with respect to the collar body 5 because the protrusion 15 is engaged with the free end of the leaf spring 13. Therefore, the state in which the protrusion 15 cannot engage with the hole 14 is maintained. However, the retainer 9 can be rotated with respect to the collar body 5 within a certain rotation angle range for allowing the sphere 7 to move to the shallow portion in the counterclockwise direction from the position shown in FIG.

  In order to make the winding collar 2 unable to transmit the rotational force from the collar body 5 to the winding core C, as shown in FIG. 13 is pushed down against its elasticity, and the free end of the leaf spring 13 is displaced below the tip of the projection 15 so that the projection 15 is not engaged with the free end of the leaf spring, and the retainer 9 is moved in this state. By rotating the collar body 5 clockwise by a predetermined angle, as shown by a two-dot chain line in FIG. 6, the projection 15 is placed at a position facing the hole 14 at the tip of the leaf spring 13, and then the operation member 19. Is removed from the opening 16. When the operation member 19 is removed, the free end of the leaf spring 13 is displaced upward by the elasticity of the leaf spring 13, and the projection 15 enters the hole 14 as shown by the solid line in FIG. Thereby, the hole 14 and the protrusion 15 are engaged, and the retainer 9 is restrained with respect to the collar body 5 in a state where the sphere 7 is disposed at a predetermined position in the deep part of the inclined groove. In this embodiment, when the retainer 9 is rotated clockwise with respect to the collar body 5 in FIG. 5, in order to prevent the rotation angle from becoming excessive and the hole 14 from passing through the protrusion 15, FIG. 6, when the retainer 9 is rotated to a position where the hole 14 can engage with the protrusion 15, the tip of the pin 21 fitted in the hole formed in the retainer 9 so as to protrude into the inclined groove 6 is Since the rotation of the retainer 9 is prevented by engaging with the end of the inclined groove 6, the hole 14 and the protrusion 15 can be easily and reliably engaged.

  To bring the winding collar 2 shown in FIG. 6 into a state in which the rotational force can be transmitted from the collar body 5 to the winding core C as shown in FIG. The leaf spring 13 is pushed down to a position where the projection 15 is pulled out from the hole 14, and in this state, the retainer 9 is moved to a position where the projection 15 is at least disengaged from the free end of the leaf spring 13 with respect to the main body 6 as shown in FIG. After rotating clockwise, the operation member 19 is removed from the opening 16.

In order to enable the operator to easily grasp whether or not the winding collar 2 is in a state in which the rotational force cannot be transmitted from the collar body 5 to the winding core C, a plate on the outer peripheral surface of the retainer 9 is provided. When the display window 20 is formed at a position corresponding to the spring 13 and the protrusion 15 and the hole 14 are engaged, the portion 14e of the leaf spring 13 that can be seen through the display window 20 and the hole 14 are detached from the protrusion 15 and the retainer. When 9 is rotated by a predetermined angle with respect to the color main body 5 and becomes rotatable, the portion of the leaf spring 13 that can be seen through the display window 20 may have a different color. Therefore, in this embodiment, when the protrusion 15 and the hole 14 are engaged, only the portion 14e of the leaf spring 13 that can be seen through the display window 20 is painted with, for example, yellow paint, and the color of the other portion Is the color of the leaf spring 13 itself. Therefore, when the winding collar 2 is in a state in which it cannot transmit the rotational force from the collar body 5 to the core C, yellow is visible in the display window 20.
7 to 9 show another embodiment of the present invention. In the winding collar 2, only one row of the inclined grooves 6 is provided in the collar body 5, and the depressed portion 12 is provided along the row of the inclined grooves 6 so that the collar body 5 makes one round. Further, the recessed portion 12 similarly accommodates the same leaf spring 13 as in the above-described embodiment. Next to the leaf spring 13, when the collar body 5 is not covered with the winding core, the rolling elements 7 are inclined grooves 6. A compression coil spring 22 for energizing the retainer 9 in the direction in which the inclined groove 6 gradually becomes deeper with respect to the collar body 5 is accommodated so as to automatically return to the deep part. One end of the compression coil spring 22 is engaged with the pin 18 via the leaf spring 13, and the other end is engaged with a protrusion 23 provided on the inner peripheral surface of the retainer 9. A collar 5 a is formed at one end of the collar body 5, and an annular body 24 is fitted on the outer peripheral surface of the other end of the collar body 5 and fixed with a set screw 25. The bearing 3 is attached to the inner periphery of the collar body 5 on the collar side and the inner periphery of the annular body 23 so that the collar body 5 can be rotatably mounted on the central drive shaft 1.

  10 and 11 show still another embodiment of the present invention. In the winding collar 2, the depressed portion 12 includes a hole formed from the outer peripheral surface of the collar body 5 toward the center. The cross section perpendicular to the central axis of the hole 12 is circular. The engaged portion 15 includes a protrusion provided on the bottom surface of the groove 26 formed on the inner peripheral surface of the retainer 9. The protrusion 15 is a tip portion of a spring pin 27 fitted in a hole formed in the retainer 9 in the radial direction. The displacement member 13 is formed in a columnar shape and is slidably fitted in the depressed portion 12. And since it is supported by the compression coil spring 28 accommodated in the bottom part of the depression part 12, the whole displacement member 13 can be elastically displaced below. The displacement engaging portion 14 is composed of a protrusion formed on the upper end surface of the displacement member 13. As shown in FIG. 11, the opening 16 is disposed at a position moved from the central axis of the displacement member 13 by a certain distance in the width direction of the collar body 5. Since the opening 16 is formed at a position corresponding to the upper end surface of the displacement member 13 on the outer peripheral surface of the retainer 9 and not corresponding to the groove 26, the operation member 19 is inserted into the opening 16. Then, the displacement member 13 is pushed down, and in this state, the retainer 9 is rotated by a predetermined angle with respect to the collar body 5 by a predetermined angle, and then the retainer 9 is selectively attached to the collar body 5 by removing the operation member 19. Restraint can be released.

  In FIG. 10, even if the retainer 9 is rotated counterclockwise with respect to the collar body 5 so that the sphere 7 moves to the shallow portion of the inclined groove 6, the rotation is caused by the protrusion 15 in the groove 26 and the displacement member. 13, the retainer 9 is restrained by the collar body 5, and the winding collar 2 cannot transmit the rotational force from the collar body 5 to the core. It has become. In this state, the displacement member 13 is pushed down as shown in FIG. 11, and the retainer 9 is rotated counterclockwise with respect to the collar body 5 so that the protrusion 15 is disposed at the position indicated by the two-dot chain line in FIG. As a result, the protrusion 14 is detached from the protrusion 15 in the groove 26, whereby the retainer 9 is released from the restriction on the collar body 5, and the sphere 7 can move between the deep part and the shallow part of the inclined groove 6. Thus, the winding collar 2 is in a state in which a rotational force can be transmitted from the collar body 5 to the winding core. A display window 20 is formed on the outer peripheral surface of the retainer 9 at a position corresponding to the displacement engaging portion 14 when the displacement engaging portion 14 and the engaged portion 15 are engaged as shown in FIG. The upper end surfaces of the displacement engaging portion 14 and the displacement member 13 are colored in a color different from the color of the material of the displacement member 13.

  As mentioned above, although this invention was demonstrated with the few Example, the embodiment of this invention is not limited to the above-mentioned Example, It can change variously based on a well-known technique, without changing the summary of invention as needed. In the present invention, for example, a notch may be formed on one side edge of the leaf spring 13 instead of forming a hole as the displacement engaging portion 14 in the leaf spring 13 shown in FIG. A protrusion may be provided as the joint portion 14 and a hole may be provided in the inner peripheral surface of the retainer. Further, a hole can be provided as the displacement engaging portion 14 in the displacement member 13 shown in FIG. 10, and a protrusion can be provided on the inner peripheral surface of the retainer 9. Further, as the movable gripping body, a sliding body that can slide on the bottom surface of the inclined groove may be used instead of a rolling body such as a sphere or a roller.

C winding core 1 central drive shaft 2 winding collar 3 bearing 4 rotational force transmission means 5 collar body 6 inclined groove 7 movable gripping body 8 holding portion 9 retainer 10 friction piece 11 air tube 12 depressed portion 13 displacement member 14 displacement engagement portion 15 engaged portion 16 opening 17 spring pin 18 spring pin 19 operation member 20 display window 21 pin 22 compression coil spring 23 projection 24 annular body 25 set screw 26 groove 27 projection 28 compression coil spring

Claims (5)

  A winding core for each of a plurality of belt-like sheets is supported by being penetrated, and is rotatably mounted on a central drive shaft that constitutes a winding shaft for winding the belt-like sheets all around the winding core, and from the central drive shaft. An annular collar body that receives a rotational force via a rotational force transmitting means; and inclined grooves formed in a plurality of locations in the circumferential direction of the outer peripheral surface of the collar body, each extending in the circumferential direction of the collar body; A movable gripping body disposed on the bottom surface of each inclined groove, and the movable gripping body can be moved along the bottom surface between the deep and shallow portions of the inclined groove at each position corresponding to the movable gripping body and dropped off. An annular retainer rotatably mounted on the outer peripheral surface of the collar body, the movable gripper moving to a shallow portion of the inclined groove and having an inner peripheral surface of the winding core. By engaging the collar body. In the winding collar capable of transmitting a rotational force to the winding core, a recessed portion formed on the outer peripheral surface of the collar body, and a portion accommodated in the recessed portion and restrained in the circumferential direction of the collar body, Alternatively, a displacement member provided so as to be elastically displaceable downward, and an inner peripheral surface of the retainer that can be engaged with the displacement engagement portion when the movable gripper is at a predetermined position in the deep portion of the inclined groove. A take-up portion provided on the outer peripheral surface of the retainer, and an opening for receiving an operation member for pushing down the displacement member. Color.   The displacement member includes a leaf spring provided in a cantilever shape in the depressed portion, and the displacement engagement portion includes a hole or a notch formed near a free end of the leaf spring, and the engaged portion The winding collar according to claim 1, comprising a protrusion provided on an inner peripheral surface of the retainer.   The plate spring is formed by folding a plate-shaped spring material so that one tip is the free end, and a portion from one end opposite to the free end to the turn-up portion across the turn-up portion is a mounting portion, and the mounting portion Along the bottom surface of the depressed portion, and the mounting portion is fixed to the collar body by two pins disposed along the top surface of the mounting portion near the tip of the bent portion and the mounting portion, respectively. The winding collar according to claim 2, wherein the winding collar is provided in a cantilever shape in the depressed portion.   A display window is formed at a location corresponding to the displacement member on the outer peripheral surface of the retainer, and a portion of the displacement member that can be seen through the display window when the displacement engagement portion and the engaged portion are engaged with each other. The displacement engaging portion is disengaged from the engaged portion, and the retainer can rotate with respect to the collar body by rotating the retainer with respect to the collar body by a predetermined angle in a direction in which the inclined groove becomes shallower. 2. The winding collar according to claim 1, wherein a portion of the displacement member that is visible from the display window has a different color.   The depressed portion is a hole formed from the outer peripheral surface of the collar body toward the center of rotation, and the engaged portion is a protrusion provided on the bottom surface of a groove formed on the inner peripheral surface of the retainer. Is slidably fitted in the hole and supported by a compression coil spring housed in the bottom of the hole, the displacement engagement portion is formed by a protrusion provided on the upper end surface of the displacement member, and the opening is formed by a retainer. The winding collar according to claim 1, wherein the winding collar is formed at a location corresponding to the upper end surface of the displacement member on the outer peripheral surface and not corresponding to the groove.

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