Vibration suppression system for long members and bobbin holder

Abstract

To provide a vibration suppression system for suppressing vibration of a long member.SOLUTION: A vibration suppression system includes: a shaft support member 22 that is long in an axial direction (one direction) and undergoes bending deformation due to vibration; and a damping member 30 used in a state of being attached to the shaft support member 22 to suppress vibration of the shaft support member 22. The damping member 30 includes: a fixed portion 32 whose axial position is fixed relative to the shaft support member 22; a contact portion 31 disposed at a position different from the fixed portion 32 in the axial direction, coming into contact with an inner peripheral surface 22a of the shaft support member 22 while pressing the inner peripheral surface 22a of the shaft support member 22 in a state of being attached to the shaft support member 22, and movable relative to the inner peripheral surface 22a of the shaft support member 22 in the axial direction; and a non-contact portion 33 disposed between the contact portion 31 and the fixed portion 32 and not coming into contact with the inner peripheral surface 22a of the shaft support member 22 in a state of being attached to the shaft support member 22.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a vibration suppression system and a bobbin holder for suppressing vibration of a long member.

Background Art

[0002] Patent Document 1 discloses a yarn winding device that winds yarn around a bobbin to form a package. Such a yarn winding device includes a bobbin holder having a bobbin holding member on which a plurality of bobbins are mounted, a rotating shaft attached to the bobbin holding member, and a shaft support member that rotatably supports the rotating shaft. The shaft support member is a long member that is long in one direction, and the rotating shaft is disposed inside thereof.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] As described above, in a mechanical device or the like including a long member, vibration of the long member may become a problem. For example, the shaft support member (long member) of the bobbin holder disclosed in Patent Document 1 may vibrate along with vibration of the supported rotating shaft (rotating member), and thus vibration of the bobbin holding member. When the shaft support member vibrates in this way, problems such as a decrease in the life of the bearing disposed between the rotating shaft and the shaft support member occur.

[0005] An object of the present invention is to provide a vibration suppression system and a bobbin holder for suppressing vibration of a long member.

Means for Solving the Problems

[0006] The vibration suppression system for a long member according to the first invention includes a long member that is long in one direction and undergoes bending deformation due to vibration, and a damping member that is used in a mounted state attached to the long member to suppress the vibration of the long member. The damping member includes a fixing portion whose position in the one direction is fixed with respect to the long member in the mounted state, and a contact portion that is disposed at a position different from the fixing portion in the one direction in the mounted state, contacts the stretching surface extending along the one direction in the long member while pressing the stretching surface, and is relatively movable with respect to the stretching surface in the one direction, and a non-contact portion that is disposed between the contact portion and the fixing portion and does not contact the stretching surface of the long member in the mounted state.

[0007] In the present invention, when bending deformation occurs in the long member due to vibration and the long member is displaced in one direction, the contact portion of the damping member relatively moves with respect to the stretching surface of the long member while pressing the stretching surface of the long member. Therefore, a large frictional force is generated between the stretching surface of the long member and the contact portion of the damping member, and energy can be dissipated by frictional heat to suppress the vibration of the long member. Further, when bending deformation occurs in the long member due to vibration and the long member is displaced in one direction, the fixing portion of the damping member moves together with the long member in one direction. Therefore, the contact portion at a position different from the fixing portion in one direction surely relatively moves with respect to the long member in one direction. Thus, the vibration of the long member can be surely suppressed. Furthermore, the non-contact portion can increase the distance between the contact portion and the fixing portion in one direction. Therefore, the relative movement distance between the contact portion and the long member when bending deformation occurs in the long member due to vibration is sufficiently large. Thus, the energy (frictional heat) generated by the friction caused by the relative movement of the contact portion with respect to the stretching surface of the long member can be increased, and the vibration of the long member can be effectively suppressed.

[0008] In the vibration suppression system for a long member according to the second invention, in the first invention, the long member is cylindrical, the stretching surface is the inner surface of the long member, and the damping member is attached to the long member by being inserted into the long member.

[0009] In the present invention, the vibration of the long member can be suppressed by the contact portion of the damping member inserted into the long member moving relative to the inner surface of the long member while pressing the inner surface of the long member.

[0010] In the vibration suppression system for a long member according to the third invention, in the second invention, the damping member is cylindrical and extends in the one direction in the mounted state.

[0011] In the present invention, by adopting a cylindrical damping member, it becomes possible to arrange another member inside the damping member, increasing the degree of freedom in design.

[0012] In the vibration suppression system for a long member according to the fourth invention, in the third invention, the damping member extends in the one direction in the mounted state, and slits are formed at least at one end on one side of the one direction. In the mounted state, the contact portion is formed in a region where the slit is formed in the one direction, and the size of the contact portion in a direction orthogonal to the one direction is compressed by the slit and inserted into the long member.

[0013] In the present invention, the damping member can press the inner surface of the long member by the restoring force of the contact portion.

[0014] In the vibration suppression system for a long member according to the fifth invention, in the fourth invention, the long member is cylindrical, and a plurality of the slits are provided at equal intervals in the circumferential direction of the long member.

[0015] In the present invention, the damping member can uniformly press the inner surface of the long member in the circumferential direction by the contact portion. Therefore, no matter in which direction the long member is bent and deformed, the vibration of the long member can be suppressed.

[0016] In the vibration suppression system for a long member according to the sixth invention, in the first invention, the stretching surface is the outer surface of the long member, the damping member is cylindrical, and is attached to the long member by being fitted on the outside of the long member.

[0017] In the present invention, the vibration of the long member can be suppressed by the contact portion of the damping member relatively moving with respect to the outer surface of the long member while pressing the outer surface of the long member.

[0018] In the vibration suppression system for a long member according to the seventh invention, in the sixth invention, the damping member extends in the one direction in the mounted state, and a slit that is open at least at one end on one side of the one direction is formed, and in the mounted state, the contact portion is formed in a region where the slit is formed in the one direction, and is fitted on the outside of the long member with the size of the contact portion in a direction orthogonal to the one direction being expanded by the slit.

[0019] In the present invention, the damping member can press the outer surface of the long member by the restoring force of the contact portion.

[0020] In the vibration suppression system for a long member according to the eighth invention, in the seventh invention, the outer surface of the long member is cylindrical, and a plurality of the slits are provided at equal intervals in the circumferential direction of the long member.

[0021] In the present invention, the outer surface of the long member can be uniformly pressed in the circumferential direction by the contact portion of the damping member. Therefore, no matter in which direction the long member is bent and deformed, the vibration of the long member can be suppressed.

[0022] In the vibration suppression system for the long member according to the ninth invention, in any of the first to eighth inventions, the long member has a first portion and a second portion that is located at a position different from the first portion with respect to the one direction and has a cross-sectional area perpendicular to the one direction that is smaller than that of the first portion, and in the mounted state, the damping member is arranged such that the contact portion and the fixing portion sandwich the second portion in the one direction.

[0023] In the present invention, when the long member vibrates, the strain of the second portion becomes larger than that of the first portion. Therefore, by arranging the damping member such that the fixing portion and the contact portion sandwich the second portion of the long member, the distance of the relative movement between the contact portion and the long member when the long member undergoes bending deformation due to vibration becomes even larger. Thus, the energy generated by the friction caused by the relative movement of the contact portion with respect to the stretching surface of the long member can be made sufficiently large, and the vibration of the long member can be reliably suppressed.

[0024] In the vibration suppression system for the long member according to the tenth invention, in any of the first to ninth inventions, the contact portion is located at one end of the damping member in the one direction, and the fixing portion is located at the other end of the damping member in the one direction.

[0025] In the present invention, the distance between the contact portion and the fixing portion in the one direction can be made sufficiently large. Therefore, when the long member undergoes bending deformation due to vibration, the energy generated by the friction caused by the relative movement of the contact portion with respect to the stretching surface of the long member can be made even larger, and the vibration of the long member can be more reliably suppressed.

[0026] The vibration suppression system for a long member according to the 11th invention includes a cylindrical long member that is long in one direction and bends due to vibration, and a damping member that is cylindrical and is used in a mounted state where it is mounted on the long member in a posture extending in the one direction to suppress the vibration of the long member. The damping member includes a fixing portion whose position in the one direction is fixed with respect to the long member in the mounted state, and a contact portion that is arranged at a position different from the fixing portion in the one direction in the mounted state, contacts the stretching surface extending along the one direction which is the inner surface of the long member while pressing the stretching surface, and is relatively movable with respect to the stretching surface in the one direction. In the mounted state, a slit is formed that extends in the one direction and is open at least at one end on one side of the one direction. In the mounted state, the contact portion is formed in a region where the slit is formed in the one direction. The damping member is inserted into the long member in a state where the size of the contact portion in the orthogonal direction orthogonal to the one direction is compressed by the slit.

[0027] In the present invention, when the long member is bent due to vibration and is displaced in one direction, the contact portion of the damping member moves relative to the inner surface of the long member while pressing the inner surface of the long member. Therefore, a large frictional force is generated between the inner surface of the long member and the contact portion of the damping member, and energy is dissipated by frictional heat, thereby suppressing the vibration of the long member. Further, when the long member is bent due to vibration and is displaced in one direction, the fixing portion of the damping member moves together with the long member in the one direction. Therefore, the contact portion at a position different from the fixing portion in the one direction surely moves relative to the long member in the one direction. Thus, the vibration of the long member can be surely suppressed. Furthermore, the damping member can press the inner surface of the long member by the restoring force of the contact portion.

[0028] In the vibration suppression system for the long member according to the 12th invention, in the 11th invention, the long member is cylindrical, and a plurality of slits are provided at equal intervals in the circumferential direction of the long member.

[0029] In the present invention, the damping member can uniformly press the inner surface of the long member in the circumferential direction by the contact portion. Therefore, no matter in which direction the long member is bent and deformed, the vibration of the long member can be suppressed.

[0030] The vibration suppression system for a long member according to the 13th invention includes a long member that is long in one direction and bends and deforms due to vibration, and a damping member that is cylindrical and is used in a mounted state where it is mounted on the long member in a posture extending in the one direction to suppress the vibration of the long member. The damping member has a fixing portion whose position in the one direction is fixed with respect to the long member in the mounted state, and a contact portion that is arranged at a position different from the fixing portion in the one direction in the mounted state, contacts the extension surface extending along the one direction which is the outer surface of the long member while pressing the extension surface, and is relatively movable with respect to the extension surface in the one direction. In the mounted state, a slit that extends in the one direction and is open at least at one end of the one direction is formed. In the mounted state, the contact portion is formed in a region where the slit is formed in the one direction. The damping member is fitted outside the long member in a state where the size of the contact portion in the orthogonal direction orthogonal to the one direction is expanded by the slit.

[0031] In the present invention, when the long member bends and deforms due to vibration and the long member is displaced in one direction, the contact portion of the damping member moves relative to the outer surface of the long member while pressing the outer surface of the long member. Therefore, a large frictional force is generated between the outer surface of the long member and the contact portion of the damping member, and the energy is dissipated by the frictional heat, so that the vibration of the long member can be suppressed. Also, when the long member is bent and deformed by vibration and displaced in one direction, the fixing portion of the damping member moves together with the long member in one direction. Therefore, the contact portion located at a position different from the fixing portion in one direction surely moves relative to the long member in one direction. Thus, the vibration of the long member can be surely suppressed. Furthermore, the damping member can press the outer surface of the long member by the restoring force of the contact portion.

[0032] In the vibration suppression system for a long member according to the 14th invention, in the 13th invention, the outer surface of the long member is cylindrical, and a plurality of the slits are provided at equal intervals in the circumferential direction of the long member.

[0033] In the present invention, the outer surface of the long member can be evenly pressed in the circumferential direction by the contact portion of the damping member. Therefore, the vibration of the long member can be suppressed regardless of the direction in which the long member is bent and deformed.

[0034] The vibration suppression system for a long member according to the 15th invention is any one of the 11th to 14th inventions, and includes a non-contact portion that is disposed between the contact portion and the fixing portion and does not contact the extension surface of the long member in the mounted state.

[0035] In the present invention, the non-contact portion can increase the distance between the contact portion and the fixing portion in one direction. Therefore, the relative movement distance between the contact portion and the long member when the long member is bent and deformed by vibration is sufficiently large. Thus, the energy (frictional heat) generated by the friction caused by the relative movement of the contact portion with respect to the extension surface of the long member can be increased, and the vibration of the long member can be effectively suppressed.

[0036] In the vibration suppression system for a long member according to the 16th invention, in the 15th invention, the long member has a first portion and a second portion that is located at a position different from the first portion with respect to the one direction and has a cross-sectional area perpendicular to the one direction that is smaller than that of the first portion. In the mounted state, the contact portion and the fixed portion are arranged so as to sandwich the second portion in the one direction.

[0037] In the present invention, when the long member vibrates, the strain of the second portion becomes larger than that of the first portion. Therefore, by arranging the damping member so that the fixed portion and the contact portion sandwich the second portion of the long member, when the long member is bent and deformed due to vibration, the distance of relative movement between the contact portion and the long member becomes even larger. Thus, the energy generated by the friction caused by the relative movement of the contact portion with respect to the outer surface of the long member can be made sufficiently large, and the vibration of the long member can be reliably suppressed.

[0038] In the vibration suppression system for a long member according to the 17th invention, in the 15th or 16th invention, the contact portion is located at one end of the damping member in the one direction, and the fixed portion is located at the other end of the damping member in the one direction.

[0039] In the present invention, the distance between the contact portion and the fixed portion in one direction can be made sufficiently large. Thus, when the long member is bent and deformed due to vibration, the energy generated by the friction caused by the relative movement of the contact portion with respect to the stretching surface of the long member can be made even larger, and the vibration of the long member can be more reliably suppressed.

[0040] In any one of the 1st to 17th inventions, the damping member includes a portion formed of a first material and a portion formed of a second material having higher wear resistance than the first material. At least the contact surface of the contact portion with the stretching surface of the long member may be formed of the second material. With this configuration, it is possible to suppress the reduction in the service life due to wear of the contact portion.

[0041] Further, in any one of the first to seventeenth inventions, the long member may be cylindrical, and a rotatable member rotatable about an axis extending along the one direction may be inserted therein, and the rotatable member may be rotatably supported. According to this configuration, the vibration generated in the long member due to the vibration of the rotatable member can be suppressed.

[0042] The bobbin holder according to the eighteenth invention is a bobbin holder cantilever-supported on a machine base, and includes a rotating shaft extending along one direction, a bobbin holding member attached to the rotating shaft so as to rotate together with the rotating shaft and capable of mounting a plurality of bobbins in a state arranged along the one direction, and a cylindrical member long in the one direction, one end of both ends in the one direction being supported by the machine base, and a shaft support member in which the rotating shaft is inserted and rotatably supports the rotating shaft via a bearing. A vibration suppression system for a long member according to any one of the first to seventeenth inventions is applied, and the damping member is used in a state of being attached to the shaft support member to suppress the vibration of the shaft support member.

[0043] In a cantilever-supported bobbin holder, the vibration of the shaft support member may increase due to the lengthening of the bobbin holding member and the increase in the weight of the bobbin. According to the present invention, since the vibration of the shaft support member, which is a long member, can be attenuated by the damping member, it is possible to suppress the vibration of the shaft support member.

Brief Description of the Drawings

[0044]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Mode for Carrying Out the Invention

[0045] Hereinafter, a preferred embodiment of a spinning take-up device including a bobbin holder to which a vibration suppression system according to the present invention is applied will be described with reference to the drawings.

[0046] (Spinning Take-up Device) First, with reference to FIG. 1, the overall configuration of the spinning take-up device 1 will be described. Hereinafter, the left-right direction of the paper surface of FIG. 1 is defined as the front-rear direction, and the up-down direction of the paper surface is defined as the up-down direction (vertical direction) in which gravity acts. The spinning take-up device 1 winds a plurality of synthetic fiber yarns Y spun from the spinning device 100 around a plurality of bobbins B respectively to form a plurality of packages P.

[0047] The spinning take-up device 1 includes godet rollers 3 and 4, a yarn winding device 5, etc. In the spinning device 100, a polymer supplied from a polymer supply device (not shown) composed of a gear pump or the like is extruded downward from a spinneret (not shown). A plurality of yarns Y spun from the spinning device 100 are arranged in the direction perpendicular to the paper surface of FIG. 1, and travel along the yarn paths along the godet rollers 3 and 4 in a state of being arranged at appropriate intervals by a yarn path guide (not shown). Further, the plurality of yarns Y are distributed in the front-rear direction from the godet roller 4 and are respectively wound around a plurality of bobbins B in the yarn winding device 5.

[0048] The bobbin winding device 5 includes a machine base 7, a turret 8, two bobbin holders 9, a support frame body 10, a contact controller 11, a traversing device 12, etc. The bobbin winding device 5 rotates the bobbin holders 9 to simultaneously wind a plurality of yarns Y sent from the godet roller 4 onto a plurality of bobbins B, thereby forming a plurality of packages P.

[0049] A disk-shaped turret 8 is attached to the machine base 7. The turret 8 is rotationally driven by a motor (not shown) around a rotation axis parallel to the front-rear direction. Two long bobbin holders 9 are cantilever-supported on the turret 8 in a posture extending along the front-rear direction. A plurality of bobbins B are mounted on each bobbin holder 9 in a state of being arranged along the front-rear direction. Each bobbin holder 9 is rotationally driven by a motor 25, which will be described later, around a rotation axis parallel to the front-rear direction.

[0050] By rotating the turret 8, the positions of the two bobbin holders 9 can be switched between an upper position and a lower position. The plurality of yarns Y are wound onto the plurality of bobbins B mounted on the bobbin holder 9 at the upper position. When the plurality of yarns Y are wound onto the plurality of bobbins B mounted on the bobbin holder 9 at the upper position to form a plurality of packages P, the positions of the two bobbin holders 9 are switched up and down. Then, the plurality of yarns Y are wound onto the plurality of bobbins B mounted on the bobbin holder 9 that has newly come to the upper position.

[0051] The support frame body 10 is a long frame-shaped member extending in the front-rear direction. The support frame body 10 is fixedly attached to the machine base 7. A long roller support member 13 extending in the front-rear direction is attached to the lower part of the support frame body 10 so as to be vertically movable relative to the support frame body 10. The roller support member 13 rotatably supports the contact controller 11 extending along the axial direction (front-rear direction) of the bobbin holder 9 in a two-end supported manner. During the winding of the plurality of yarns Y, when the contact controller 11 contacts the plurality of packages P supported by the bobbin holder 9 at the upper position, a predetermined contact pressure is applied to the packages P, and the shape of the packages P is adjusted.

[0052] Above the contact roller 11 in the roller support member 13, a traverse device 12 is attached. The traverse device 12 has a plurality of traverse guides 14 arranged in the front-rear direction. The plurality of traverse guides 14 are driven by a motor (not shown) and reciprocate in the front-rear direction respectively. A plurality of yarns Y are respectively hung on the plurality of traverse guides 14. The yarn Y is wound around the corresponding bobbin B while being swayed back and forth around the fulcrum guide 15 as the traverse guide 14 reciprocates.

[0053] (Bobbin holder) Subsequently, with reference to FIG. 2, the configuration of the bobbin holder 9 will be described in detail. Note that the left-right direction of the paper surface of FIG. 2 is the axial direction (i.e., the front-rear direction) of the bobbin holder 9. Hereinafter, the axial direction of the bobbin holder 9 will be simply referred to as the "axial direction". As described above, the bobbin holder 9 is cantilever-supported on the machine base 7 via the turret 8. Hereinafter, the side of the machine base 7 (the right side of the paper surface of FIG. 2) in the axial direction of the bobbin holder 9 is defined as the base end side. Also, the side opposite to the machine base 7 side in the axial direction of the bobbin holder 9 (the left side of the paper surface of FIG. 2) is defined as the tip end side. The bobbin holder 9 has a rotating shaft 20, a bobbin holding member 21, a shaft support member 22, a damping member 30, etc.

[0054] The rotating shaft 20 extends along the axial direction. The end portion on the base end side of the rotating shaft 20 is connected to the drive shaft (not shown) of the motor 25. The motor 25 is built in the turret 8. The rotating shaft 20 rotates around an axis extending along the axial direction by the drive of the motor 25.

[0055] The bobbin holding member 21 has a cylindrical shell portion 21a and a boss portion 21b. The shell portion 21a is a member that is long in the axial direction. A plurality of bobbins B can be mounted on the outer peripheral surface of the shell portion 21a in a state of being arranged in the axial direction. The boss portion 21b is provided at the axial center portion of the shell portion 21a. The internal space of the shell portion 21a is divided into a tip-side space and a base-end-side space by the boss portion 21b. The rotating shaft 20 is disposed in the space on the base-end side of the boss portion 21b among the internal spaces of the shell portion 21a. The end portion on the tip side of the rotating shaft 20 is fixed to the radial center portion of the boss portion 21b. Thereby, the bobbin holding member 21 is attached to the rotating shaft 20 so as to rotate together with the rotating shaft 20.

[0056] The shaft support member 22 is a cylindrical member that is long in the axial direction. The inner peripheral surface 22a of the shaft support member 22 extends along the axial direction. The base-end side end portion of the shaft support member 22 is supported by the turret 8. The rotating shaft 20 is inserted into the shaft support member 22. The shaft support member 22 rotatably supports the rotating shaft 20 disposed therein via a plurality of bearings 24. The shaft support member 22 may vibrate along with the vibration of the rotating shaft 20 it supports, and thus the vibration of the bobbin holding member 21. That is, since the bobbin holder 9 of the present embodiment is cantilever-supported and unbalanced, the bobbin holding member 21 (rotating shaft 20) may vibrate. Further, due to the exciting force applied to the bobbin holding member 21 caused by the contact between the package P supported by the bobbin holder 9 and the contact controller 11, the rotating shaft 20 may vibrate. In particular, when the rotation frequency of the bobbin holder 9 or the external exciting force frequency is close to or overlaps with the natural vibration frequency of the bobbin holder 9, very intense vibration occurs. When the rotating shaft 20 vibrates in this way, the shaft support member 22 that supports the rotating shaft 20 vibrates.

[0057] The damping member 30 is a substantially cylindrical member. The damping member 30 is attached to the shaft support member 22. The damping member 30 is inserted into the inside of the shaft support member 22 in a posture extending along the axial direction. The damping member 30 is disposed between the rotating shaft 20 and the shaft support member 22. The damping member 30 is for suppressing the vibration of the shaft support member 22 by damping the vibration of the shaft support member 22.

[0058] (Damping member) Furthermore, with reference to FIGS. 3 and 4, the configuration of the damping member 30 will be described in detail. The damping member 30 has a contact portion 31, a fixing portion 32, and a non-contact portion 33. In addition, a slit 35 is formed in the damping member 30.

[0059] The slit 35 extends along the axial direction. The slit 35 extends from the substantially central portion of the damping member 30 toward the proximal end side with respect to the axial direction. The slit 35 is open at the proximal end side end portion of the damping member 30. A plurality of slits 35 are provided at equal intervals with respect to the circumferential direction of the shaft support member 22. In the present embodiment, the number of slits 35 is four.

[0060] The contact portion 31 is located at the proximal end side end portion with respect to the axial direction. As shown in FIG. 4, the contact portion 31 contacts the inner peripheral surface (inner side surface) 22a of the shaft support member 22. As will be described later, the contact portion 31 presses the inner peripheral surface 22a of the shaft support member 22. The contact portion 31 is relatively movable with respect to the inner peripheral surface 22a of the shaft support member 22 in the axial direction. The contact portion 31 is formed in a region where the slit 35 is formed with respect to the axial direction.

[0061] The outer diameter of the contact portion 31 of the damping member 30 when it is not inserted into the shaft support member 22 is larger than the inner diameter of the portion of the shaft support member 22 into which the contact portion 31 of the damping member 30 is inserted. Then, the damping member 30 is inserted into the inside of the shaft support member 22 in a state where the size of the contact portion 31 in the direction orthogonal to the axial direction (orthogonal direction) is compressed by the slit 35. Therefore, the contact portion 31 presses the inner peripheral surface 22a of the shaft support member 22 by the restoring force.

[0062] In the damping member 30, the contact portion 31 is formed of a material different from that of the portion other than the contact portion 31. The material of the contact portion 31 has higher wear resistance than the material of the portion other than the contact portion 31. For example, the material of the contact portion 31 is a polymer such as nylon or Teflon (registered trademark), or a dissimilar metal such as brass or aluminum. Also, the material of the portion other than the contact portion 31 is iron, brass, or the like.

[0063] The fixing portion 32 is arranged at a position different from that of the contact portion 31 in the axial direction. The fixing portion 32 is located at the end portion on the tip side in the axial direction. The position of the fixing portion 32 in the axial direction is fixed to the shaft support member 22. In the present embodiment, the fixing portion 32 is fixed to the shaft support member 22 by bolts 41. The method of fixing the fixing portion 32 to the shaft support member 22 is not limited to this. For example, fixing by fitting or mechanical fixing such as a so-called mech lock may be used.

[0064] The non-contact portion 33 is arranged between the contact portion 31 and the fixing portion 32 in the axial direction. The outer diameter of the non-contact portion 33 is smaller than the outer diameter of the contact portion 31. Therefore, as shown in FIG. 4, the non-contact portion 33 does not contact the inner peripheral surface 22a of the shaft support member 22.

[0065] Also, as shown in FIG. 4, a thin portion 23a is provided on the side wall portion of the shaft support member 22. Here, let the thickness of the adjacent portion 23b located on one side (base end side) of the thin portion 23a in the axial direction in the shaft support member 22 be Tb. Also, let the thickness of the adjacent portion 23c located on the other side (tip end side) of the thin portion 23a in the axial direction in the shaft support member 22 be Tc. At this time, the thickness Ta of the thin portion 23a is smaller than either the thickness Tb of the adjacent portion 23b or the thickness Tc of the adjacent portion 23c. That is, the thin portion 23a is thinner than the adjacent portion 23b and the adjacent portion 23c. Note that the area of the cross section orthogonal to the axial direction of the shaft support member 22 is such that the area at the thin portion 23a is smaller than either the area at the adjacent portion 23b or the area at the adjacent portion 23c. That is, the adjacent portions 23b and 23c correspond to the first part of the present invention, and the thin portion 23a corresponds to the second part of the present invention. The damping member 30 is arranged such that the contact portion 31 and the fixing portion 32 sandwich the thin portion 23a in the axial direction.

[0066] The shaft support member 22 undergoes a bending deformation as shown in FIG. 4(b) due to the vibration accompanying the vibration of the rotating shaft 20. As a result, the shaft support member 22 is displaced in the axial direction. At this time, the fixing portion 32 of the damping member 30 moves together with the shaft support member 22 in the axial direction. On the other hand, the contact portion 31 of the damping member 30 relatively moves with respect to the inner peripheral surface 22a of the shaft support member 22 in the axial direction while pressing the inner peripheral surface 22a of the shaft support member 22. Specifically, as indicated by the arrow in FIG. 4(b), the contact portion 31 relatively moves toward the tip end side with respect to the inner peripheral surface 22a of the shaft support member 22 in the axial direction. Therefore, a large frictional force is generated between the inner peripheral surface 22a of the shaft support member 22 and the contact portion 31 of the damping member 30. As a result, energy is dissipated as frictional heat, and the vibration of the shaft support member 22 can be suppressed.

[0067] (Evaluation of Vibration Damping Effect) Here, the vibration damping effect of the above-described damping member 30 was evaluated using the testing machine shown in FIG. 5. As shown in FIG. 5, the testing machine 50 has a long member 51 that is long in one direction. The long member 51 is cantilever-supported by a support member 52 at one end on the longitudinal direction side thereof. The long member 51 is supported by the support member 52 in a posture where its longitudinal direction is substantially horizontal. A mass 53 is attached to the end on the other side of the long member 51, which is opposite to the one side (the side supported by the support member 52) in the longitudinal direction. The long member 51 is cylindrical. Further, the side wall portion of the long member 51 has a thin portion 51a that is thinner than other portions in the longitudinal direction.

[0068] In the testing machine 50, a test was conducted to vibrate the long member 51 so that a bending deformation occurred in the long member 51. In the test, after an external force was applied to the long member 51 to vibrate it, the magnitude of the acceleration of the vibration of the long member 51 was measured.

[0069] In Case 1, as shown in FIG. 5, the test was conducted by inserting the damping member 30 of the above-described embodiment into the long member 51. At this time, the contact portion 31 of the damping member 30 contacts the inner peripheral surface of the long member 51 while pressing the inner peripheral surface of the long member 51, and is relatively movable with respect to the inner peripheral surface of the long member 51 in the longitudinal direction. Further, the fixing portion 32 of the damping member 30 is fixed in position with respect to the long member 51 in the longitudinal direction. Furthermore, the damping member 30 is arranged such that the contact portion 31 and the fixing portion 32 sandwich the thin portion 51a in the longitudinal direction. In Case 2, the test was conducted without inserting the damping member 30 into the long member 51.

[0070] The vibration damping waveforms obtained in the tests of the above-described Case 1 and Case 2 are shown in the graph of FIG. 6. From the graph of FIG. 6, it can be seen that in Case 1 where the damping member 30 is mounted, the vibration of the long member 51 decays more rapidly than in Case 2 where the damping member 30 is not mounted.

[0071] Also, the graph in Fig. 7 shows the vibration attenuation rates in the above-mentioned Tests 1 and 2. As shown in the graph of Fig. 7, the attenuation rate in Case 1 with the damping member 30 attached is 1.86, and the attenuation rate in Case 2 without the damping member 30 attached is 0.10. From these test results, it can be seen that the damping member 30 has a sufficient vibration attenuation effect.

[0072] (Features of the Embodiment) As described above, the vibration suppression system for the long member of the present embodiment includes a shaft support member 22 that is long in the axial direction (one direction) and is bent and deformed by vibration, and a damping member 30 that is used in a state of being attached to the shaft support member 22 in order to suppress the vibration of the shaft support member 22. The damping member 30 includes a contact portion 31 that contacts and presses an extension surface (inner peripheral surface 22a) extending along the axial direction of the shaft support member 22 while being relatively movable with respect to the extension surface in the axial direction in a state of being attached to the shaft support member 22.

[0073] According to the above configuration, when the shaft support member 22 is bent and deformed by vibration and the shaft support member 22 is displaced in the axial direction, the contact portion 31 of the damping member 30 relatively moves with respect to the inner peripheral surface 22a of the shaft support member 22 while pressing the inner peripheral surface 22a of the shaft support member 22. Therefore, a large frictional force is generated between the inner peripheral surface 22a of the shaft support member 22 and the contact portion 31 of the damping member 30, and the energy is dissipated as frictional heat, so that the vibration of the shaft support member 22 can be suppressed.

[0074] Furthermore, in the vibration suppression system for the long member of the present embodiment, the shaft support member 22 is cylindrical, the extension surface extending along the axial direction of the shaft support member 22 is the inner peripheral surface 22a, and the damping member 30 is attached to the shaft support member 22 by being inserted into the shaft support member 22. According to this configuration, the vibration of the shaft support member 22 can be suppressed by the contact portion 31 of the damping member 30 inserted into the shaft support member 22 relatively moving with respect to the inner peripheral surface 22a of the shaft support member 22 while pressing the inner peripheral surface 22a of the shaft support member 22.

[0075] Further, the damping member 30 of the present embodiment is cylindrical and extends in the axial direction when mounted on the shaft support member 22. According to this configuration, by adopting the cylindrical damping member 30, it becomes possible to arrange another member inside the damping member 30, increasing the degree of freedom in design.

[0076] Furthermore, the damping member 30 of the present embodiment extends in the axial direction when mounted on the shaft support member 22, and a slit 35 that is open at the end on the proximal side in the axial direction is formed. When mounted on the shaft support member 22, the contact portion 31 is formed in a region where the slit 35 is formed in the axial direction. The damping member 30 is inserted into the shaft support member 22 in a state where the size of the contact portion 31 in the direction orthogonal to the axial direction is compressed by the slit 35. According to this configuration, the inner peripheral surface 22a of the shaft support member 22 can be pressed by the restoring force of the contact portion 31.

[0077] In addition, in the vibration suppression system of the long member of the present embodiment, the shaft support member 22 is cylindrical. A plurality of slits 35 of the damping member 30 are provided at equal intervals in the circumferential direction of the shaft support member 22. According to this configuration, the inner peripheral surface 22a of the shaft support member 22 can be evenly pressed in the circumferential direction by the contact portion 31. Therefore, no matter in which direction the shaft support member 22 bends and deforms, the vibration of the shaft support member 22 can be suppressed.

[0078] Also, the damping member 30 of the present embodiment includes a fixing portion 32 whose position in the axial direction is fixed with respect to the shaft support member 22 when mounted on the shaft support member 22, and the contact portion 31 is arranged at a position different from the fixing portion 32 in the axial direction. According to this configuration, when the shaft support member 22 bends and deforms due to vibration and the shaft support member 22 is displaced in the axial direction, the fixing portion 32 moves together with the shaft support member 22 in the axial direction. Therefore, the contact portion 31, which is at a position different from the fixing portion 32 in the axial direction, surely moves relative to the shaft support member 22 in the axial direction. Thus, the vibration of the shaft support member 22 can be surely suppressed.

[0079] Furthermore, the damping member 30 of the present embodiment is disposed between the contact portion 31 and the fixing portion 32, and includes a non-contact portion 33 that does not contact the inner peripheral surface 22a of the shaft support member 22 when mounted on the shaft support member 22. According to this configuration, the non-contact portion 33 can increase the distance between the contact portion 31 and the fixing portion 32 in the axial direction. Therefore, when the shaft support member 22 undergoes bending deformation due to vibration, the relative movement distance between the contact portion 31 and the shaft support member 22 is sufficiently large. Thus, the energy (frictional heat) generated by friction due to the relative movement of the contact portion 31 with respect to the inner peripheral surface 22a of the shaft support member 22 can be increased, and the vibration of the shaft support member 22 can be effectively suppressed.

[0080] In addition, in the vibration suppression system of the long member of the present embodiment, the side wall portion of the shaft support member 22 has adjacent portions 23b, 23c and a thin portion 23a. The thin portion 23a is located at a position different from the adjacent portions 23b, 23c in the axial direction and has a smaller cross-sectional area in a cross-section orthogonal to the axial direction than the adjacent portions 23b, 23c. The damping member 30 is disposed such that the contact portion 31 and the fixing portion 32 sandwich the thin portion 23a in the axial direction when mounted on the shaft support member 22. According to this configuration, when the shaft support member 22 vibrates, the strain of the thin portion 23a becomes larger than that of other portions. Therefore, by disposing the damping member 30 such that the contact portion 31 and the fixing portion 32 sandwich the thin portion 23a of the shaft support member 22, the relative movement distance between the contact portion 31 and the shaft support member 22 when the shaft support member 22 undergoes bending deformation due to vibration becomes even larger. Thus, the energy generated by friction due to the relative movement of the contact portion 31 with respect to the inner peripheral surface 22a of the shaft support member 22 can be made sufficiently large, and the vibration of the shaft support member 22 can be reliably suppressed.

[0081] Further, in the damping member 30 of the present embodiment, the contact portion 31 is located at the end on the proximal end side in the axial direction, and the fixing portion 32 is located at the end on the distal end side in the axial direction. According to this configuration, the distance between the contact portion 31 and the fixing portion 32 in the axial direction can be made sufficiently large. Therefore, when the shaft support member 22 is bent and deformed due to vibration, the energy generated by the friction caused by the relative movement of the contact portion 31 with respect to the inner peripheral surface 22a of the shaft support member 22 is further increased, and the vibration of the shaft support member 22 can be more reliably suppressed.

[0082] Furthermore, in the damping member 30 of the present embodiment, the contact portion 31 is formed of a material having higher wear resistance than the material forming the other portions. According to this configuration, it is possible to suppress the reduction in the service life due to the wear of the contact portion 31.

[0083] In addition, in the vibration suppression system of the long member of the present embodiment, the shaft support member 22 has a rotary shaft 20 that is rotatable about an axis extending along the axial direction inserted therein, and supports the rotary shaft 20 rotatably. According to this configuration, the vibration generated in the shaft support member 22 due to the vibration of the rotary shaft 20 can be suppressed by the damping member 30. Thus, by suppressing the vibration of the shaft support member 22, it is possible to avoid a decrease in the life of the bearing 24 disposed between the rotary shaft 20 and the shaft support member 22.

[0084] Furthermore, the bobbin holder 9 of the present embodiment is a bobbin holder 9 that is cantilever-supported by the machine base 7, and includes a rotary shaft 20 that extends along the axial direction, and is attached to the rotary shaft 20 so as to rotate together with the rotary shaft 20, and a bobbin holding member 21 that can mount a plurality of bobbins B in a state arranged in the axial direction, and a tubular member that is long in the axial direction, one end of which in the axial direction is supported by the machine base 7, and the rotary shaft 20 is inserted therein and supports the rotary shaft 20 rotatably via a bearing 24. The above-described vibration suppression system for the long member is applied, and the damping member 30 is used in a state of being attached to the shaft support member 22 to suppress vibration of the shaft support member 22.

[0085] In the case of the bobbin holder 9 supported by the piece holding, the vibration of the shaft support member 22 may increase due to the elongation of the bobbin holding member 21 and the increase in the weight of the bobbin B. According to the above-described configuration, since the damping member 30 can damp the vibration of the shaft support member 22, it is possible to suppress the vibration of the shaft support member 22. In this way, by suppressing the vibration of the shaft support member 22, it is possible to avoid a decrease in the life of the bearing 24 disposed between the rotating shaft 20 and the shaft support member 22. Further, by suppressing the vibration of the shaft support member 22 by the damping member 30, it is possible to suppress the vibration generated in the entire bobbin holder 9 due to an external exciting force or the like. Therefore, it is possible to suppress a decrease in the quality of the yarn Y wound by the bobbin holder 9.

[0086] As described above, the embodiments of the present invention have been described with reference to the drawings. However, the specific configuration should not be considered to be limited to these embodiments. The scope of the present invention is shown by the claims, rather than the description of the above embodiments, and further includes all modifications within the meaning and scope equivalent to the claims.

[0087] In the above-described embodiment, the damping member 30 used in a state of being inserted into the shaft support member 22 has been described, but the present invention is not limited thereto. That is, the damping member 130 according to a modification of the present embodiment shown in FIGS. 8 and 9 is used in a state of being fitted on the outside of the shaft support member 22. The shaft support member 22 is cylindrical as in the above-described embodiment. That is, the outer surface (outer peripheral surface 22b) of the shaft support member 22 extends along the axial direction. Further, the outer surface of the shaft support member 22 is cylindrical. Hereinafter, the configuration of the damping member 130 will be described centering on the points different from the configuration of the damping member 30.

[0088] The contact portion 131 of the damping member 130 contacts the outer peripheral surface 22b of the shaft support member 22 while pressing the outer peripheral surface 22b of the shaft support member 22. The contact portion 131 is axially relatively movable with respect to the outer peripheral surface 22b of the shaft support member 22. The fixing portion 132 of the damping member 130 is fixed in position axially with respect to the shaft support member 22, similar to the fixing portion 32 of the damping member 30. The non-contact portion 133 of the damping member 130 does not contact the outer peripheral surface 22b of the shaft support member 22. Similar to the damping member 30, the damping member 130 is arranged such that the contact portion 131 and the fixing portion 132 sandwich the thin portion 23a of the shaft support member 22 in the axial direction.

[0089] The contact portion 131 is formed in a region where the slit 35 is formed in the axial direction. The damping member 130 is fitted outside the shaft support member 22 in a state where the size of the contact portion 131 in the direction orthogonal to the axial direction is expanded by the slit 35. Therefore, the contact portion 131 presses the outer peripheral surface 22b of the shaft support member 22 by the restoring force.

[0090] Similar to the vibration suppression system according to the above-described embodiment, in the vibration suppression system for the long member according to this modification, when the shaft support member 22 is bent and deformed by vibration, a large frictional force is generated between the outer peripheral surface 22b of the shaft support member 22 and the contact portion 131. Thereby, energy can be dissipated by frictional heat to suppress the vibration of the shaft support member 22.

[0091] In addition, in the above-described embodiments and modifications, the case where the damping members 30 and 130 are applied to the shaft support member 22 has been described, but the present invention is not limited to this. The damping member of the present invention can be applied to a long member that is long in one direction and undergoes bending deformation due to vibration in general. The long member is not limited to one that rotatably supports the rotating shaft 20 of the bobbin holder 9. The long member may be one that rotatably supports a rotating member of a machine or device other than the bobbin holder 9. The long member may not be one that rotatably supports the rotating member. In the above-described embodiment, the damping member 30 is inserted and used inside the cylindrical shaft support member 22, but it may be inserted inside a rectangular tube-shaped long member having a polygonal cross-section. In the above-described modification, the damping member 130 is fitted and used outside the cylindrical shaft support member 22, but it may be fitted outside a cylindrical, rectangular tube-shaped, or rectangular prism-shaped long member having a polygonal cross-section. That is, the long member may be cylindrical with a cavity provided inside or columnar without a cavity provided inside. Further, the cross-sectional shape of the long member may be circular or polygonal.

[0092] Furthermore, in the above-described embodiments and modifications, the case where the damping members 30 and 130 are cylindrical with a cavity formed inside and a circular cross-sectional shape has been described, but the present invention is not limited to this. The damping member 30 of the embodiment may have a structure without a cavity provided inside, such as a columnar shape. The cross-sectional shape of the damping members 30 and 130 may be polygonal. The cross-sectional shape of the damping members 30 and 130 is preferably adapted to the shape of the surface of the long member to which they are attached. That is, for example, when inserting a damping member inside a rectangular tube-shaped long member with a square cross-sectional shape, the cross-sectional shape of the outer surface of the damping member is preferably square.

[0093] In addition, in the above-described embodiment, the case where the slit 35 extends along the axial direction has been described, but the present invention is not limited to this. The direction in which the slit 35 extends does not necessarily have to be parallel to the axial direction and may be oblique to the axial direction.

[0094] In the above-described embodiment, the case where the slit 35 is open at the base end side end in the axial direction has been described, but the present invention is not limited to this. The slit 35 may be open at the tip side end in the axial direction.

[0095] In the above-described embodiment, the case where the number of the slits 35 is four has been described, but the present invention is not limited to this. The number of the slits 35 provided in the damping member 30 may be three or less, or may be five or more. The slit 35 may be one. When the slit 35 is one, the slit 35 may extend over the entire length of the damping member 30 in the axial direction. At this time, the slit 35 is open at both ends in the axial direction.

[0096] Furthermore, in the above-described embodiment, the case where the plurality of slits 35 are provided at equal intervals in the circumferential direction of the shaft support member 22 has been described, but the present invention is not limited to this. The plurality of slits 35 may be provided at unequal intervals in the circumferential direction of the shaft support member 22.

[0097] In addition, in the above-described embodiment, the case where the size of the contact portion 31 is compressed by the slit 35 and the contact portion 31 presses the inner peripheral surface 22a of the shaft support member 22 by the restoring force has been described. Also, in the above-described modification, the case where the size of the contact portion 131 is expanded by the slit 35 and the contact portion 131 presses the outer peripheral surface 22b of the shaft support member 22 by the restoring force has been described. However, the mechanism by which the contact portions 31 and 131 press the shaft support member 22 is not limited to this. That is, for example, the contact portions 31 and 131 are formed of an elastic body material such as rubber or resin, and the contact portions 31 and 131 may press the shaft support member 22 by the elastic force of the material forming the contact portions 31 and 131.

[0098] Furthermore, in the above-described embodiments and modifications, the contact portions 31 and 131 are located at the axial base-end side end portions, the fixing portions 32 and 132 are located at the axial tip-end side end portions, and the non-contact portions 33 and 133 are located between the fixing portions 32 and 132. However, the present invention is not limited to this. The contact portions 31 and 131 may be located at the axial tip-end side end portions, and the fixing portions 32 and 132 may be located at the axial base-end side end portions. The contact portions 31 and 131 and the fixing portions 32 and 132 may be arranged at different positions in the axial direction and may not be arranged at the axial end portions. That is, only one of the contact portions 31 and 131 and the fixing portions 32 and 132 may be arranged at the axial end portion, and both the contact portions 31 and 131 and the fixing portions 32 and 132 may not be arranged at the axial end portion. The contact portions 31 and 131 and the fixing portions 32 and 132 may be adjacent in the axial direction. In this case, the non-contact portions 33 and 133 are not provided.

[0099] In addition, in the above-described embodiment, the case where the thin portion 23a thinner than the adjacent portions 23b and 23c is provided on the side wall portion of the shaft support member 22 has been described. However, the present invention is not limited to this. The thin portion 23a may be a portion that is thinner than the thickest portion of the side wall portion of the shaft support member 22. Preferably, the thin portion 23a is the thinnest portion of the shaft support member 22.

[0100] Furthermore, in the above-described embodiments and modifications, the case where the damping members 30 and 130 are arranged such that the contact portions 31 and 131 and the fixing portions 32 and 132 sandwich the thin portion 23a in the axial direction has been described. However, the present invention is not limited to this. That is, the thin portion 23a may not be provided on the shaft support member 22. Also, the contact portions 31 and 131 and the fixing portions 32 and 132 may not sandwich the thin portion 23a in the axial direction.

[0101] In the above-described embodiments and modifications, the material of the contact portions 31 and 131 has been described as having higher wear resistance than the material of the portions other than the contact portions 31 and 131 in the damping members 30 and 130, but it is not limited thereto. It is preferable that at least the contact surfaces of the shaft support members 22 in the contact portions 31 and 131 are formed to have higher wear resistance than the other portions. For example, the damping members 30 and 130 may be formed of iron or brass, and a wear-resistant layer having higher wear resistance than iron or brass may be formed on the contact surfaces of the shaft support members 22 in the contact portions 31 and 131. Examples of the wear-resistant layer include coatings such as hard chrome plating and ceramic spraying, and hardened layers by heat treatment. When the damping members 30 and 130 are formed of three or more types of materials, it is sufficient that at least the contact surfaces of the shaft support members 22 in the contact portions 31 and 131 are formed of materials other than the material having the lowest wear resistance. Further, the damping members 30 and 130 may be formed of only one type of material.

Explanation of Signs

[0102] 7 Machine base 9 Bobbin holder 20 Rotating shaft 21 Bobbin holding member 22 Shaft support member (long member) 22a Inner peripheral surface (extended surface, inner surface) 22b Outer peripheral surface (extended surface, outer surface) 23a Thin portion (second portion) 23b, 23c Adjacent portion (first portion) 30, 130 Damping member 31, 131 Contact portion 32, 132 Fixed portion 33, 133 Non-contact portion 35 Slit

Claims

1. A long member that is long in one direction and that undergoes bending deformation due to vibration; a damping member that is attached to the elongated member and used in an attached state in order to suppress vibration of the elongated member; The damping member is a fixing portion whose position in the one direction is fixed with respect to the elongated member in the attached state; a contact portion that is disposed at a position different from the fixed portion in the one direction in the attached state, that contacts the extension surface of the elongated member while pressing the extension surface, and that is movable relative to the extension surface in the one direction; A vibration suppression system for an elongated member comprising: a non-contact portion disposed between the contact portion and the fixed portion, the non-contact portion not contacting the extension surface of the elongated member in the installed state.

2. The elongated member is cylindrical, the extension surface being an interior surface of the elongate member; The vibration suppression system for a long member according to claim 1 , wherein the damping member is attached to the long member by being inserted inside the long member.

3. The vibration suppression system for an elongated member according to claim 2 , wherein the damping member is cylindrical and extends in the one direction in the attached state.

4. The damping member is In the mounted state, a slit is formed which extends in the one direction and is open at least at one end on one side in the one direction, In the attached state, the contact portion is formed in a region in which the slit is formed in the one direction, The vibration suppression system for a long member according to claim 3 , wherein the system is inserted into the long member in a state in which the size of the contact portion in a direction perpendicular to the one direction is compressed by the slit.

5. The elongated member is cylindrical; The vibration suppression system for a long member according to claim 4 , wherein the slits are provided in a plurality at equal intervals in the circumferential direction of the long member.

6. the extension surface being an exterior surface of the elongate member; The vibration suppression system for a long member according to claim 1 , wherein the damping member is cylindrical and is attached to the long member by being fitted onto the outside of the long member.

7. The damping member is In the mounted state, a slit is formed which extends in the one direction and is open at least at one end on one side in the one direction, In the attached state, the contact portion is formed in a region in which the slit is formed in the one direction, The vibration suppression system for a long member according to claim 6 , wherein the contact portion is fitted onto the outside of the long member with the size of the contact portion expanded in a direction perpendicular to the one direction by the slit.

8. The outer surface of the elongated member is cylindrical, The vibration suppression system for a long member according to claim 7 , wherein the slits are provided in a plurality at equal intervals in the circumferential direction of the long member.

9. the elongated member has a first portion and a second portion that is located at a position different from the first portion in the one direction and has a cross-sectional area perpendicular to the one direction smaller than that of the first portion, A vibration suppression system for a long member as described in any one of claims 1 to 8, wherein, in the installed state, the damping member is arranged so that the contact portion and the fixed portion sandwich the second portion in the one direction.

10. the contact portion is located at one end portion of the damping member in the one direction, The vibration suppression system for a long member according to any one of claims 1 to 9, wherein the fixed portion is located at an end portion on the other side of the one direction of the damping member.

11. A cylindrical elongated member that is elongated in one direction and that undergoes bending deformation due to vibration; a damping member that is cylindrical and is used in a mounted state on the elongated member in a position extending in the one direction in order to suppress vibration of the elongated member, The damping member is a fixing portion whose position in the one direction is fixed with respect to the elongated member in the attached state; a contact portion that is disposed at a position different from the fixed portion in the one direction in the attached state, that contacts the extension surface while pressing the extension surface that is an inner surface of the elongated member and extends along the one direction, and that is movable relative to the extension surface in the one direction; In the mounted state, a slit is formed which extends in the one direction and is open at least at one end on one side in the one direction, In the attached state, the contact portion is formed in a region in which the slit is formed in the one direction, A vibration suppression system for an elongated member, in which the damping member is inserted inside the elongated member with the size of the contact portion compressed in a direction perpendicular to the one direction by the slit.

12. The elongated member is cylindrical; The vibration suppression system for a long member according to claim 11 , wherein the slits are provided in a plurality at equal intervals in the circumferential direction of the long member.

13. A long member that is long in one direction and that undergoes bending deformation due to vibration; a damping member that is cylindrical and is used in a mounted state on the elongated member in a position extending in the one direction in order to suppress vibration of the elongated member, The damping member is a fixing portion whose position in the one direction is fixed with respect to the elongated member in the attached state; a contact portion that is disposed at a position different from the fixed portion in the one direction in the attached state, that contacts the extension surface while pressing the extension surface that is the outer surface of the elongated member and extends along the one direction, and that is movable relative to the extension surface in the one direction; In the mounted state, a slit is formed which extends in the one direction and is open at least at one end on one side in the one direction, In the attached state, the contact portion is formed in a region in which the slit is formed in the one direction, A vibration suppression system for a long-length member, in which the damping member is fitted onto the outside of the long-length member with the size of the contact portion expanded in a direction perpendicular to the one direction by the slit.

14. The outer surface of the elongated member is cylindrical, The vibration suppression system for a long member according to claim 13 , wherein the slits are provided in a plurality at equal intervals in the circumferential direction of the long member.

15. A vibration suppression system for a long member as described in any one of claims 11 to 14, comprising a non-contact portion arranged between the contact portion and the fixed portion and not in contact with the extension surface of the long member in the installed state.

16. the elongated member has a first portion and a second portion that is located at a position different from the first portion in the one direction and has a cross-sectional area perpendicular to the one direction smaller than that of the first portion, The vibration suppression system for a long member according to claim 15 , wherein the damping member is arranged such that, in the attached state, the contact portion and the fixing portion sandwich the second portion in the one direction.

17. the contact portion is located at one end portion of the damping member in the one direction, The vibration suppression system for a long member according to claim 15 or 16, wherein the fixing portion is located at an end portion on the other side in the one direction of the damping member.

18. A bobbin holder supported by a cantilever on a machine base, A rotation axis extending in one direction; a bobbin holding member attached to the rotating shaft so as to rotate together with the rotating shaft, and capable of mounting a plurality of bobbins in a state of being aligned in the one direction; a shaft support member which is a cylindrical member elongated in the one direction, one of both ends in the one direction being supported by the machine base, and into which the rotating shaft is inserted and which rotatably supports the rotating shaft via a bearing, A bobbin holder to which the vibration suppression system for a long member described in any one of claims 1 to 17 is applied, and the damping member is used in a state where it is attached to the shaft support member to suppress vibration of the shaft support member.

Images