Vibration suppression system for long member and bobbin holder

Abstract

Provided are a vibration suppression system for a long member and a bobbin holder, which suppress vibration of the long member. The present invention is provided with: a shaft support member (22) that is long in the axial direction (one direction) and that bends and deforms due to vibration; and a damping member (30) used in a state of being attached to the shaft support member in order to suppress vibration of the shaft support member. The damping member is provided with: a fixing part (32), the position of which in the axial direction is fixed with respect to the shaft support member; a contact part (31) which is disposed at a position different from that of the fixed part in the axial direction, which, in a state of being attached to the shaft support member, is in contact with the inner peripheral surface (22a) of the shaft support member while pressing the inner peripheral surface (22a) of the shaft support member, and which is movable relative to the inner peripheral surface of the shaft support member in the axial direction; and a non-contact part (33) which is disposed between the contact part and the fixed part and does not contact the inner peripheral surface of the shaft support member in a state of being attached to the shaft support member.

Description

Technical Field

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

[0002] In Patent Document 1, there is disclosed a silk winding device that winds silk around a bobbin to form a package. Such a silk winding device includes a bobbin holder having: a bobbin holding member on which a plurality of bobbins are mounted; a rotating shaft mounted on 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.

[0003] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2018-72227

[0004] As described above, in a mechanical device or the like having a long member, vibration of the long member sometimes becomes a problem. For example, the shaft support member (long member) of the bobbin holder disclosed in Patent Document 1 sometimes vibrates along with vibration of the supported rotating shaft (rotating member), and further along with vibration of the bobbin holding member. Thus, if the shaft support member vibrates, problems such as a reduction in the life of a bearing disposed between the rotating shaft and the shaft support member occur. Summary of the Invention

[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.

[0006] A vibration suppression system for a long member according to a first invention includes: a long member that is long in one direction and is bent and deformed due to vibration; and a damping member that is used in a state of being mounted on the long member in order to suppress vibration of the long member. The damping member includes: a fixing portion that is fixed in position in the one direction with respect to the long member in the mounted state; a contact portion that is disposed at a position different from the fixing portion in the one direction in the mounted state, contacts an elongation surface extending along the one direction in the long member while pressing the elongation surface, and is capable of relatively moving with respect to the elongation 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 elongation surface of the long member in the mounted state.

[0007] In the present invention, when the long member is bent and deformed 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 elongation surface of the long member while pressing the elongation surface of the long member. Thus, a large frictional force is generated between the elongation surface of the long member and the contact portion of the damping member, and energy is dissipated as frictional heat, thereby being able to suppress vibration of the long member.

[0008] In addition, when the long member is bent and deformed 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 located at a position different from the fixing portion in one direction moves relative to the long member reliably in one direction. Thus, vibration of the long member can be reliably suppressed.

[0009] Furthermore, through the non-contact portion, the distance between the contact portion and the fixing portion in one direction can be increased. Therefore, when the long member is bent and deformed due to vibration, the relative movement distance between the contact portion and the long member is large enough. Thus, the energy (frictional heat) generated by friction due to the relative movement of the contact portion relative to the elongation surface of the long member can be increased, and vibration of the long member can be effectively suppressed.

[0010] In the vibration suppression system of the long member according to the second invention, in the first invention, the above-mentioned long member is cylindrical, the above-mentioned elongation surface is the inner side surface of the long member, and the above-mentioned damping member is installed on the above-mentioned long member by being inserted into the inside of the above-mentioned long member.

[0011] In the present invention, the contact portion of the damping member inserted into the inside of the long member moves relative to the inner side surface of the long member while pressing the inner side surface of the long member, thereby suppressing vibration of the long member.

[0012] In the vibration suppression system of the long member according to the third invention, in the second invention, the above-mentioned damping member is tubular and extends along the above-mentioned one direction in the above-mentioned installation state.

[0013] In the present invention, by adopting a tubular damping member, other components can be arranged inside the damping member, and the degree of freedom in design is increased.

[0014] In the vibration suppression system of the long member according to the fourth invention, in the third invention, the above-mentioned damping member is formed with a slit, and in the above-mentioned installation state, the slit extends along the above-mentioned one direction and at least one end on one side in the above-mentioned one direction is open. In the above-mentioned installation state, the above-mentioned contact portion is formed in the area where the above-mentioned slit is formed in the above-mentioned one direction, and in a state where the size of the above-mentioned contact portion in the direction orthogonal to the above-mentioned one direction through the above-mentioned slit is compressed, the above-mentioned damping member is inserted into the inside of the above-mentioned long member.

[0015] In the present invention, the damping member can press the inner side surface of the long member by the restoring force of the contact portion.

[0016] In the vibration suppression system of the long strip member of the fifth invention, in the fourth invention, the long strip member is cylindrical, and a plurality of the slits are provided at equal intervals in the circumferential direction of the long strip member.

[0017] In the present invention, the damping member can press the inner side surface of the long strip member evenly in the circumferential direction through the contact portion. Therefore, no matter which direction the long strip member bends and deforms, the vibration of the long strip member can be suppressed.

[0018] The vibration suppression system of the long strip member of the sixth invention is that in the first invention, the elongation surface is the outer side surface of the long strip member, and the damping member is tubular and is mounted on the long strip member by being embedded in the outside of the long strip member.

[0019] In the present invention, the contact portion of the damping member embedded in the outside of the long strip member presses the outer side surface of the long strip member while relatively moving with respect to the outer side surface of the long strip member, thereby being able to suppress the vibration of the long strip member.

[0020] In the vibration suppression system of the long strip member of the seventh invention, in the sixth invention, the damping member is formed with a slit, and in the mounted state, the slit extends along the one direction and at least the end on one side in the one direction is open. In the mounted state, the contact portion is formed in the area where the slit is formed in the one direction, and in a state where the size of the contact portion in the direction orthogonal to the one direction through the slit is expanded, the damping member is embedded in the outside of the long strip member.

[0021] In the present invention, the damping member can press the outer side surface of the long strip member by the restoring force of the contact portion.

[0022] In the vibration suppression system of the long strip member of the eighth invention, in the seventh invention, the outer side surface of the long strip member is cylindrical, and a plurality of the slits are provided at equal intervals in the circumferential direction of the long strip member.

[0023] In the present invention, the outer side surface of the long strip member can be evenly pressed in the circumferential direction by the contact portion of the damping member. Therefore, no matter which direction the long strip member bends and deforms, the vibration of the long strip member can be suppressed.

[0024] In the vibration suppression system of the long strip member of the ninth invention, in any one of the first to eighth inventions, the long strip member has: a first portion; and a second portion, which is located at a position different from the first portion in the one direction and has a smaller cross-sectional area in a cross-section orthogonal to the one direction than the first portion. 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.

[0025] 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, when the long member undergoes bending deformation due to vibration, the distance of relative movement between the contact portion and the long member further increases. Accordingly, the energy generated by the friction resulting from the relative movement of the contact portion relative to the elongation surface of the long member can be sufficiently increased, and the vibration of the long member can be reliably suppressed.

[0026] In the vibration suppression system of the long member according to the tenth invention, in any one of the first to ninth inventions, the contact portion is located at an end portion on one side in the one direction of the damping member, and the fixing portion is located at an end portion on the other side in the one direction of the damping member.

[0027] In the present invention, the distance between the contact portion and the fixing portion in one direction can be sufficiently increased. Therefore, when the long member undergoes bending deformation due to vibration, the energy generated by the friction resulting from the relative movement of the contact portion relative to the elongation surface of the long member can be further increased, and the vibration of the long member can be more reliably suppressed.

[0028] The vibration suppression system of the long member according to the eleventh invention includes: a cylindrical long member that is long in one direction and undergoes bending deformation due to vibration; and a damping member that is tubular and is used in a mounted state where it is mounted on the long member in a posture extending along the one direction to suppress the vibration of the long member. The damping member has: a fixing portion that is fixed relative to the long member in position in the one direction 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 elongation surface extending along the one direction by pressing the inner side surface of the long member, and can relatively move in the one direction relative to the elongation surface. Further, a slit is formed, which extends along the one direction in the mounted state and is open at least at an end portion on one side in 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 damping member is inserted into the inside of the long member in a state where the size of the contact portion in the orthogonal direction orthogonal to the one direction is compressed through the slit.

[0029] In the present invention, when the long member undergoes bending deformation 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 inner side surface of the long member while pressing the inner side surface of the long member. Accordingly, a large frictional force can be generated between the inner side surface of the long member and the contact portion of the damping member, and energy can be dissipated through frictional heat, thereby suppressing the vibration of the long member.

[0030] In addition, when the long member is bent and deformed 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 located at a position different from the fixing portion in one direction moves relative to the long member reliably in one direction. Accordingly, vibration of the long member can be reliably suppressed.

[0031] Furthermore, the damping member can press the inner side surface of the long member by the restoring force of the contact portion.

[0032] In the vibration suppression system of the long member according to the 12th invention, in the 11th invention, the above-mentioned long member is cylindrical, and a plurality of the above-mentioned slits are provided at equal intervals in the circumferential direction of the above-mentioned long member.

[0033] In the present invention, the damping member can press the inner side surface of the long member evenly in the circumferential direction by the contact portion. Accordingly, 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 of the long member according to the 13th invention includes: a long member that is long in one direction and is bent and deformed due to vibration; and a damping member that is tubular and is used in a mounted state in which the damping member is mounted on the long member in a posture extending along the one direction to suppress vibration of the long member. The damping member has: a fixing portion whose position in the one direction is fixed relative 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 an outer side surface of the long member, that is, an elongated surface extending along the one direction, while pressing the outer side surface, and can move relative to the elongated surface in the one direction. A slit is formed, and in the mounted state, the slit extends along the one direction and at least one end portion on one side in the one direction is open. In the mounted state, the contact portion is formed in a region where the slit is formed in the one direction, and the damping member is inserted outside the long member in a state where a size of the contact portion in a direction orthogonal to the one direction is expanded through the slit.

[0035] In the present invention, when the long member is bent and deformed due to vibration and the long member is displaced in one direction, the contact portion of the damping member moves relative to the outer side surface of the long member while pressing the outer side surface of the long member. Therefore, a large frictional force is generated between the outer side surface of the long member and the contact portion of the damping member, and energy is dissipated as frictional heat, thereby suppressing vibration of the long member.

[0036] In addition, when the long strip member is bent and deformed due to vibration and the long strip member is displaced in one direction, the fixing portion of the damping member moves together with the long strip member in one direction. Therefore, the contact portion located at a position different from the fixing portion in one direction moves relative to the long strip member reliably in one direction. Thus, vibration of the long strip member can be reliably suppressed.

[0037] Furthermore, the damping member can press the outer side surface of the long strip member by the restoring force of the contact portion.

[0038] In the vibration suppression system of the long strip member according to the 14th invention, in the 13th invention, the outer side surface of the above-mentioned long strip member is cylindrical, and a plurality of the above-mentioned slits are provided at equal intervals in the circumferential direction of the long strip member.

[0039] In the present invention, the outer side surface of the long strip member can be pressed evenly in the circumferential direction by the contact portion of the damping member. Thus, no matter which direction the long strip member is bent and deformed, vibration of the long strip member can be suppressed.

[0040] The vibration suppression system of the long strip member according to the 15th invention includes, in any one of the 11th to 14th inventions, a non-contact portion that is disposed between the contact portion and the fixing portion and does not contact the elongation surface of the long strip member in the above-mentioned installation state.

[0041] In the present invention, the distance between the contact portion and the fixing portion in one direction can be increased by the non-contact portion. Thus, when the long strip member is bent and deformed due to vibration, the relative movement distance between the contact portion and the long strip member is large enough. Therefore, the energy (frictional heat) generated by the friction generated by the relative movement of the contact portion relative to the elongation surface of the long strip member can be increased, and vibration of the long strip member can be effectively suppressed.

[0042] In the vibration suppression system of the long strip member according to the 16th invention, in the 15th invention, the long strip member has: a first portion; and a second portion that is located at a position different from the first portion in the above-mentioned one direction and has a smaller cross-sectional area in a cross-section orthogonal to the above-mentioned one direction than the first portion, and in the above-mentioned installation state, is configured such that the contact portion and the fixing portion sandwich the second portion in the above-mentioned one direction.

[0043] In the present invention, when the long strip member vibrates, the strain of the second portion becomes larger than that of the first portion. Thus, by configuring the damping member such that the fixing portion and the contact portion sandwich the second portion of the long strip member, the relative movement distance between the contact portion and the long strip member when the long strip member is bent and deformed due to vibration becomes further larger. Therefore, the energy generated by the friction generated by the relative movement of the contact portion relative to the outer side surface of the long strip member can be sufficiently increased, and vibration of the long strip member can be reliably suppressed.

[0044] In the vibration suppression system of the long strip member according to the 17th invention, in the 15th or 16th invention, the contact portion is located at one end of the damping member on one side in the one direction, and the fixing portion is located at the other end of the damping member on the other side in the one direction.

[0045] In the present invention, the distance between the contact portion and the fixing portion in one direction can be sufficiently increased. Therefore, when the long strip member is bent and deformed due to vibration, the energy generated by the friction caused by the relative movement of the contact portion relative to the elongation plane of the long strip member can be further increased, and the vibration of the long strip member can be more reliably suppressed.

[0046] In addition, in any one of the 1st to 17th inventions, the damping member may include a portion formed of a first material and a portion formed of a second material having a higher wear resistance than the first material, and at least the contact surface of the contact portion that contacts the elongation plane of the long strip member is formed of the second material. In this configuration, the low life caused by the wear of the contact portion can be suppressed.

[0047] Furthermore, in any one of the 1st to 17th inventions, the long strip member may be cylindrical, a rotating member that can rotate about an axis extending in the one direction is inserted therein, and the long strip member supports the rotating member so as to be rotatable. According to this configuration, the vibration generated in the long strip member due to the vibration of the rotating member can be suppressed.

[0048] The bobbin holder of the 18th invention is cantilever-supported on the machine body and includes: a rotating shaft extending in one direction; a bobbin holding member mounted on the rotating shaft so as to rotate together with the rotating shaft and capable of mounting a plurality of bobbins in a state arranged in the one direction; and a shaft supporting member, which is a long cylindrical member in the one direction, one end of the two ends in the one direction is supported on the machine body, and the rotating shaft is inserted into the inside of the shaft supporting member, and the shaft supporting member supports the rotating shaft so as to be rotatable via a bearing. The vibration suppression system of the long strip member according to any one of the 1st to 17th inventions is used, and the damping member is used in a state of being mounted on the shaft supporting member in order to suppress the vibration of the shaft supporting member.

[0049] In the cantilever-supported bobbin holder, due to the elongation of the bobbin holding member and the increase in the weight of the bobbin, the vibration of the shaft supporting member sometimes becomes large. According to the present invention, the vibration of the long strip member, that is, the shaft supporting member, can be attenuated by the damping member, so that the vibration of the shaft supporting member can be suppressed. Description of the Drawings

[0050] Figure 1It is a schematic diagram of a spinning and drawing device with a bobbin holder to which the vibration suppression system of the present invention is applied.

[0051] Figure 2 It is a cross-sectional view of the bobbin holder.

[0052] Figure 3 It is a perspective view of the damping member.

[0053] Figure 4 It is Figure 2 An enlarged view of the area enclosed by the dotted line in, (a) shows the state where no deformation occurs in the shaft support member, and (b) shows the state where the shaft support member is bent and deformed.

[0054] Figure 5 It is a perspective view of a test machine for evaluating the vibration damping effect.

[0055] Figure 6 It is a graph showing the vibration damping waveforms in the case where the damping member is installed and the case where the damping member is not installed, respectively.

[0056] Figure 7 It is a graph showing the vibration damping rates in the case where the damping member is not installed and the case where the damping member is installed, respectively.

[0057] Figure 8 It is a cross-sectional view of a bobbin holder with a damping member to which a modification of the present embodiment is applied.

[0058] Figure 9 It is Figure 8 An enlarged view of the area enclosed by the dotted line in.

[0059] Symbol description:

[0060] 7: Machine body; 9: Bobbin holder; 20: Rotating shaft; 21: Bobbin holding member; 22: Shaft support member (long bar member); 22a: Inner peripheral surface (elongated surface, inner side surface); 22b: Outer peripheral surface (elongated surface, outer side surface); 23a: Thin wall portion (second part); 23b, 23c: Adjacent portion (first part); 30, 130: Damping member; 31, 131: Contact portion; 32, 132: Fixed portion; 33, 133: Non-contact portion; 35: Slit. Detailed implementation mode

[0061] Hereinafter, a preferred embodiment of a spinning and drawing device with a bobbin holder to which the vibration suppression system of the present invention is applied will be described with reference to the drawings.

[0062] (Spinning and drawing device)

[0063] First, refer to Figure 1The overall configuration of the spinning and drawing device 1 will be described. Hereinafter, Figure 1 the left - right direction of the paper surface is set as the front - rear direction, and the up - down direction of the paper surface is set as the up - down direction (vertical direction) in which gravity acts. The spinning and drawing device 1 winds multiple synthetic fiber filaments Y spun from the spinning device 100 around a plurality of bobbins B respectively to form a plurality of packages P.

[0064] The spinning and drawing device 1 includes godet rollers 3, 4, a filament winding device 5, etc. In the spinning device 100, the 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). The multiple filaments Y spun from the spinning device 100 are arranged in the Figure 1 vertical direction of the paper surface, and while being arranged at appropriate intervals through a filament channel guide (not shown), they travel in the filament channels along the godet rollers 3, 4. Further, the multiple filaments 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 filament winding device 5.

[0065] The filament winding device 5 includes a machine body 7, a turntable 8, two bobbin holders 9, a support frame 10, a contact roller 11, a traversing device 12, etc. The filament winding device 5 winds the multiple filaments Y conveyed from the godet roller 4 around a plurality of bobbins B simultaneously by rotating the bobbin holders 9 to form a plurality of packages P.

[0066] A disk - shaped turntable 8 is installed on the machine body 7. The turntable 8 is rotationally driven by a motor (not shown) around a rotation axis parallel to the front - rear direction. Two long - strip bobbin holders 9 are cantilever - supported on the turntable 8 in a posture extending along the front - rear direction. A plurality of bobbins B are installed on each bobbin holder 9 in a state arranged along the front - rear direction. Each bobbin holder 9 is rotationally driven by a motor 25 (described later) around a rotation axis parallel to the front - rear direction.

[0067] By rotating the turntable 8, the positions of the two bobbin holders 9 can be switched between the upper position and the lower position. The multiple filaments Y are wound around the plurality of bobbins B installed on the bobbin holder 9 located at the upper position. When multiple packages P are formed by winding the multiple filaments Y around the plurality of bobbins B installed on the bobbin holder 9 located at the upper position, the positions of the two bobbin holders 9 are switched up and down. Then, the multiple filaments Y are wound around the plurality of bobbins B installed on the bobbin holder 9 that newly comes to the upper position.

[0068] The support frame 10 is a long, frame-shaped component extending in the front-rear direction. The support frame 10 is fixedly installed on the machine body 7. The relatively long roller support member 13 in the front-rear direction is installed at the lower part of the support frame 10 so as to be movable up and down relative to the support frame 10. The roller support member 13 doubly supports the contact roller 11 extending along the axial direction (front-rear direction) of the bobbin holder 9 so as to be rotatable freely. During the winding of multiple silk threads Y, the contact roller 11 contacts multiple packages P supported by the bobbin holder 9 at the upper side position, applies a prescribed contact pressure to the packages P, and adjusts the shape of the packages P.

[0069] Above the contact roller 11 in the roller support member 13, a traversing device 12 is installed. The traversing device 12 has multiple traversing wire guides 14 arranged in the front-rear direction. The multiple traversing wire guides 14 are driven by a motor (not shown) and reciprocate in the front-rear direction respectively. Multiple silk threads Y are hung on the multiple traversing wire guides 14 respectively. The silk threads Y reciprocate through the traversing wire guides 14, traverse back and forth with the fulcrum wire guide 15 as the center, and are wound around the corresponding bobbins B.

[0070] (Bobbin holder)

[0071] Next, with reference to Figure 2 the configuration of the bobbin holder 9 will be described in detail. In addition, Figure 2 the left-right direction of the paper surface of Figure 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 body 7 via the turntable 8. Hereinafter, the side of the machine body 7 in the axial direction in the bobbin holder 9 ( Figure 2 the right side of the paper surface) is set as the base end side. In addition, the side opposite to the machine body 7 side in the axial direction in the bobbin holder 9 ( Figure 2 the left side of the paper surface) is set as the front 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.

[0072] The rotating shaft 20 extends along the axial direction. The end of 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 turntable 8. The rotating shaft 20 rotates around the axis extending along the axial direction by the drive of the motor 25.

[0073] The bobbin holding member 21 has a cylindrical housing portion 21a and a boss portion 21b. The housing portion 21a is a member that is long in the axial direction. A plurality of bobbins B are mounted on the outer peripheral surface of the housing portion 21a in a state where they can be arranged in the axial direction. The boss portion 21b is provided at the axial center portion of the housing portion 21a. The internal space of the housing portion 21a is divided into a front-end 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 in the internal space of the housing portion 21a. The front-end side end portion of the rotating shaft 20 is fixed to the radial center portion of the boss portion 21b. Thus, the bobbin holding member 21 is mounted on the rotating shaft 20 so as to rotate together with the rotating shaft 20.

[0074] 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 turntable 8. The rotating shaft 20 is inserted into the inside of the shaft support member 22. The shaft support member 22 supports the rotating shaft 20 disposed therein rotatably via a plurality of bearings 24. The shaft support member 22 sometimes vibrates along with the vibration of the supported rotating shaft 20, and further along with 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) sometimes vibrates. In addition, 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 roller 11, the rotating shaft 20 sometimes vibrates. In particular, when the rotation frequency of the bobbin holder 9 and the frequency of the external exciting force are close to or overlap with the natural vibration frequency of the bobbin holder 9, very intense vibration occurs. Thus, as the rotating shaft 20 vibrates, the shaft support member 22 that supports the rotating shaft 20 vibrates.

[0075] The damping member 30 is a tubular member. The damping member 30 is mounted on 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 used to suppress the vibration of the shaft support member 22 by damping the vibration of the shaft support member 22.

[0076] (Damping member)

[0077] Furthermore, with reference to Figure 3 and Figure 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.

[0078] The slit 35 extends axially. The slit 35 extends axially from the substantially central portion of the attenuation member 30 toward the proximal end side. The slit 35 is open at the end on the proximal end side of the attenuation member 30. A plurality of slits 35 are provided at equal intervals in the circumferential direction of the shaft support member 22. In the present embodiment, the number of slits 35 is four.

[0079] The contact portion 31 is located at the end on the proximal end side axially. As Figure 4 shown, 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 can move relative to the inner peripheral surface 22a of the shaft support member 22 axially. The contact portion 31 is formed axially in the region where the slit 35 is formed.

[0080] When the attenuation member 30 is not inserted into the inside of the shaft support member 22, the outer diameter of the contact portion 31 is larger than the inner diameter of the portion of the shaft support member 22 into which the contact portion 31 of the attenuation member 30 is inserted. And, the attenuation 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. Thus, the contact portion 31 presses the inner peripheral surface 22a of the shaft support member 22 by the restoring force.

[0081] In the attenuation member 30, the contact portion 31 is formed of a material different from the portion other than the contact portion 31. The wear resistance of the material of the contact portion 31 is higher than that of 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. In addition, the material of the portion other than the contact portion 31 is iron, brass, etc.

[0082] The fixing portion 32 is arranged at a position different from the contact portion 31 axially. The fixing portion 32 is located at the end on the front end side axially. The position of the fixing portion 32 axially is fixed relative to the shaft support member 22. In the present embodiment, the fixing portion 32 is fixed to the shaft support member 22 by a bolt 41. The fixing method of the fixing portion 32 relative to the shaft support member 22 is not limited thereto. For example, it may also be a mechanical fixing such as fixing based on fitting or so-called mechanical locking.

[0083] The non-contact portion 33 is arranged between the contact portion 31 and the fixing portion 32 axially. The outer diameter of the non-contact portion 33 is smaller than the outer diameter of the contact portion 31. Thus, as Figure 4 shown, the non-contact portion 33 does not contact the inner peripheral surface 22a of the shaft support member 22.

[0084] In addition, as Figure 4As shown, a thin-walled portion 23a is provided on the side wall portion of the shaft support member 22. Here, the thickness of the adjacent portion 23b on one side (base end side) of the thin-walled portion 23a in the axial direction in the shaft support member 22 is set as Tb. In addition, the thickness of the adjacent portion 23c on the other side (front end side) of the thin-walled portion 23a in the axial direction in the shaft support member 22 is set as Tc. At this time, the thickness Ta of the thin-walled 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-walled portion 23a is thinner than the adjacent portion 23b and the adjacent portion 23c. Further, for the area of the cross section orthogonal to the axial direction of the shaft support member 22, the area of the thin-walled portion 23a is smaller than either the area of the adjacent portion 23b or the area of the adjacent portion 23c. That is, the adjacent portions 23b and 23c correspond to the first part of the present invention, and the thin-walled 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-walled portion 23a in the axial direction.

[0085] The shaft support member 22 generates Figure 4 the bending deformation shown in (b) due to the vibration accompanying the vibration of the rotating shaft 20. Thereby, the shaft support member 22 is displaced in the axial direction. At this time, the fixing portion 32 of the damping member 30 moves in the axial direction together with the shaft support member 22. On the other hand, the contact portion 31 of the damping member 30 relatively moves in the axial direction 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. Specifically, as Figure 4 shown by the arrow in (b), the contact portion 31 relatively moves toward the front end side with respect to the inner peripheral surface 22a of the shaft support member 22 in the axial direction. Thus, 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 through frictional heat, and the vibration of the shaft support member 22 can be suppressed.

[0086] (Evaluation of vibration damping effect)

[0087] Here, using the Figure 5 test machine shown, the evaluation of the vibration damping effect based on the above damping member 30 was carried out. As Figure 5 shown, the test machine 50 has a long bar member 51 that is long in one direction. The long bar member 51 is cantilever-supported at one end on the side in its length direction by a support member 52. The long bar member 51 is supported by the support member 52 in a posture such that its length direction is substantially horizontal. A weight 53 is attached to the other end of the long bar member 51 on the side opposite to the one side (the side supported by the support member 52) in the length direction. The long bar member 51 is cylindrical. In addition, the side wall portion of the long bar member 51 has a thin-walled portion 51a that is thinner than other portions in the length direction.

[0088] In a testing machine 50, a test is performed in which a long member 51 is vibrated to cause the long member 51 to undergo bending deformation. In the test, after an external force is applied to the long member 51 to vibrate the long member 51, the magnitude of the acceleration of the vibration of the long member 51 is measured.

[0089] In Case 1, as Figure 5 shown, the test was performed with the damping member 30 of the above-described embodiment inserted inside 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 capable of relatively moving in the longitudinal direction with respect to the inner peripheral surface of the long member 51. Further, the position of the fixing portion 32 of the damping member 30 in the longitudinal direction is fixed with respect to the long member 51. Furthermore, the damping member 30 is arranged such that the contact portion 31 and the fixing portion 32 sandwich the thin-walled portion 51a in the longitudinal direction. In addition, in Case 2, the test was performed without inserting the damping member 30 inside the long member 51.

[0090] In Figure 6 the graph, the vibration damping waveforms obtained through the tests in Case 1 and Case 2 described above are shown. From Figure 6 the graph, it can be seen that, compared with Case 2 in which the damping member 30 is not installed, the vibration of the long member 51 decays rapidly in Case 1 in which the damping member 30 is installed.

[0091] In addition, in Figure 7 the graph, the damping rates of the vibration in the tests in Case 1 and Case 2 described above are shown. As Figure 7 shown in the graph, the damping rate is 1.86 in Case 1 in which the damping member 30 is installed, and the damping rate is 0.10 in Case 2 in which the damping member 30 is not installed. From these test results, it can be seen that the damping member 30 has a sufficient vibration damping effect.

[0092] (Features of the Embodiment)

[0093] As described above, the vibration suppression system for a long member according to the present embodiment includes: a shaft support member 22 that is long in the axial direction (one direction) and undergoes bending deformation due to vibration; and a damping member 30 that is used in a state of being mounted on 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, in a state of being mounted on the shaft support member 22, contacts an elongated surface (inner peripheral surface 22a) extending along the axial direction of the shaft support member 22 while pressing the elongated surface, and is capable of relatively moving in the axial direction with respect to the elongated surface.

[0094] According to the above configuration, when the shaft support member 22 undergoes bending deformation due to vibration and thus is displaced axially, the contact portion 31 of the damping member 30 presses against the inner peripheral surface 22a of the shaft support member 22 while relatively moving with respect to 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 energy is dissipated through frictional heat, thereby being able to suppress the vibration of the shaft support member 22.

[0095] Furthermore, in the vibration suppression system of the elongated member of the present embodiment, the shaft support member 22 is cylindrical, and the elongated surface extending along the axial direction of the shaft support member 22 is the inner peripheral surface 22a. The damping member 30 is installed on the shaft support member 22 by being inserted into the inside of the shaft support member 22. According to this configuration, the contact portion 31 of the damping member 30 inserted into the inside of the shaft support member 22 presses against the inner peripheral surface 22a of the shaft support member 22 while relatively moving with respect to the inner peripheral surface 22a of the shaft support member 22, thereby being able to suppress the vibration of the shaft support member 22.

[0096] In addition, the damping member 30 of the present embodiment is tubular and extends along the axial direction in a state of being installed on the shaft support member 22. According to this configuration, by adopting the tubular damping member 30, other components can be arranged inside the damping member 30, and the degree of freedom in design is increased.

[0097] Furthermore, the damping member 30 of the present embodiment is formed with a slit 35. In a state of being installed on the shaft support member 22, the slit 35 extends along the axial direction and is open at the end on the proximal side in the axial direction. In a state of being installed on the shaft support member 22, the contact portion 31 is formed in the axial direction in the region where the slit 35 is formed. 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 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.

[0098] Moreover, in the vibration suppression system of the elongated 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 pressed evenly 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.

[0099] In addition, the damping member 30 of the present embodiment includes a fixing portion 32. In a state where it is mounted on the shaft support member 22, the position of the fixing portion 32 in the axial direction is fixed relative to the shaft support member 22, and the contact portion 31 is arranged at a position different from that of the fixing portion 32 in the axial direction. According to this configuration, when the shaft support member 22 undergoes bending deformation due to vibration and thus 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 located at a position different from that of the fixing portion 32 in the axial direction, reliably moves relative to the shaft support member 22 in the axial direction. Thus, the vibration of the shaft support member 22 can be reliably suppressed.

[0100] Furthermore, the damping member 30 of the present embodiment includes a non-contact portion 33, which is arranged between the contact portion 31 and the fixing portion 32 and does not contact the inner peripheral surface 22a of the shaft support member 22 in a state where it is 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 large enough. Thus, the energy (frictional heat) generated by the friction caused by the relative movement of the contact portion 31 relative 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.

[0101] Moreover, in the vibration suppression system of the elongated member of the present embodiment, the side wall portion of the shaft support member 22 has adjacent portions 23b, 23c and a thin wall portion 23a. The thin wall portion 23a is located at a position different from that of the adjacent portions 23b, 23c in the axial direction, and the area of the cross section orthogonal to the axial direction is smaller than that of the adjacent portions 23b, 23c. In a state where the damping member 30 is mounted on the shaft support member 22, it is arranged such that the contact portion 31 and the fixing portion 32 sandwich the thin wall portion 23a in the axial direction. According to this configuration, when the shaft support member 22 vibrates, the strain of the thin wall portion 23a is larger than that of other portions. Therefore, by arranging the damping member 30 such that the contact portion 31 and the fixing portion 32 sandwich the thin wall 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 is further increased. Thus, the energy generated by the friction caused by the relative movement of the contact portion 31 relative to the inner side surface 22a of the shaft support member 22 can be sufficiently increased, and the vibration of the shaft support member 22 can be reliably suppressed.

[0102] In addition, in the damping member 30 of the present embodiment, the contact portion 31 is located at the end portion on the proximal end side in the axial direction, and the fixing portion 32 is located at the end portion on the front 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 sufficiently increased. 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 relative to the inner peripheral surface 22a of the shaft support member 22 can be further increased, and the vibration of the shaft support member 22 can be more reliably suppressed.

[0103] 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, the reduction in life due to the wear of the contact portion 31 can be suppressed.

[0104] Moreover, in the vibration suppression system of the elongated member of the present embodiment, a rotating shaft 20 that can rotate about an axis extending in the axial direction is inserted into the shaft support member 22, and the shaft support member 22 supports the rotating shaft 20 so as to be rotatable. According to this configuration, the vibration generated in the shaft support member 22 due to the vibration of the rotating shaft 20 can be suppressed by the damping member 30. In this way, by suppressing the vibration of the shaft support member 22, a reduction in the life of the bearing 24 disposed between the rotating shaft 20 and the shaft support member 22 can be avoided.

[0105] Furthermore, the bobbin holder 9 of the present embodiment is a bobbin holder 9 cantilever-supported by the machine body 7, and includes: a rotating shaft 20 extending in the axial direction; a bobbin holding member 21 mounted on the rotating shaft 20 so as to rotate together with the rotating shaft 20 and capable of mounting a plurality of bobbins B in a state arranged in the axial direction; and a shaft support member 22, which is a tubular member having a long length in the axial direction, one of the end portions in the axial direction is supported by the machine body 7, the rotating shaft 20 is inserted into the shaft support member 22, and the shaft support member 22 supports the rotating shaft 20 so as to be rotatable via a bearing 24. The vibration suppression system of the above-mentioned elongated member is applied, and the damping member 30 is used in a state of being mounted on the shaft support member 22 in order to suppress the vibration of the shaft support member 22.

[0106] In the bobbin holder 9 supported by a cantilever, due to the elongation of the bobbin holding member 21 and the increase in the weight of the bobbin B, the vibration of the shaft support member 22 sometimes becomes large. According to the above configuration, the vibration of the shaft support member 22 can be attenuated by the attenuation member 30. Therefore, the vibration of the shaft support member 22 can be suppressed. In this way, by suppressing the vibration of the shaft support member 22, it is possible to avoid a reduction in the life of the bearing 24 disposed between the rotating shaft 20 and the shaft support member 22. In addition, by suppressing the vibration of the shaft support member 22 by the attenuation member 30, the vibration generated in the entire bobbin holder 9 due to external exciting forces and the like can be suppressed. Therefore, the deterioration of the quality of the wire Y wound by the bobbin holder 9 can be suppressed.

[0107] As described above, the embodiments of the present invention have been described based on the drawings. However, it should be considered that the specific configuration is not limited to these embodiments. The scope of the present invention is represented not by the description of the above embodiments but by the scope of the claims, and also includes meanings equivalent to the scope of the claims and all modifications within the scope.

[0108] In the above embodiment, the attenuation member 30 used in the state of being inserted into the inside of the shaft support member 22 has been described, but it is not limited thereto. That is, Figure 8 and Figure 9 The attenuation member 130 of a modified example of the present embodiment shown in FIG. is used in a state of being embedded outside the shaft support member 22. Similar to the above embodiment, the shaft support member 22 is cylindrical. That is, the outer surface (outer peripheral surface 22b) of the shaft support member 22 extends along the axial direction. In addition, the outer surface of the shaft support member 22 is cylindrical. Hereinafter, the configuration of the attenuation member 130 will be described centering on the differences from the configuration of the attenuation member 30.

[0109] The contact portion 131 of the attenuation 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 can move relative to the outer peripheral surface 22b of the shaft support member 22 in the axial direction. The fixing portion 132 of the attenuation member 130 is the same as the fixing portion 32 of the attenuation member 30, and the position in the axial direction is fixed relative to the shaft support member 22. The non-contact portion 133 of the attenuation member 130 does not contact the outer peripheral surface 22b of the shaft support member 22. Similar to the attenuation member 30, the attenuation member 130 is arranged such that the contact portion 131 and the fixing portion 132 sandwich the thin wall portion 23a of the shaft support member 22 in the axial direction.

[0110] The contact portion 131 is formed in the axial direction in the region where the slit 35 is formed. The damping member 130 is inserted 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 through the slit 35 is expanded. Therefore, the contact portion 131 presses the outer peripheral surface 22b of the shaft support member 22 by the restoring force.

[0111] The vibration suppression system of the long member in this modification is the same as the vibration suppression system of the above-described embodiment. When a bending deformation occurs in the shaft support member 22 due to 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 is dissipated by frictional heat, and thus the vibration of the shaft support member 22 can be suppressed.

[0112] In addition, in the above-described embodiment and modification, the case where the damping members 30 and 130 are applied to the shaft support member 22 has been described, but it is not limited thereto. The damping member of the present invention can generally be applied to a long member that is long in one direction and undergoes bending deformation due to vibration. The long member is not limited to rotatably supporting the rotating shaft 20 of the bobbin holder 9. The long member can also rotatably support a rotating member of a machine, a device, etc. other than the bobbin holder 9. The long member can also not rotatably support the rotating member. In the above-described embodiment, the damping member 30 is inserted into the inside of the cylindrical shaft support member 22 for use, but it can also be inserted into the inside of a square tube-shaped long member having a polygonal cross-section. In the above modification, the damping member 130 is inserted outside the cylindrical shaft support member 22 for use, but it can also be inserted outside a cylindrical, square tube-shaped, or prism-shaped long member having a polygonal cross-section.

[0113] Furthermore, in the above-described embodiment, the case where the damping member 30 is tubular has been described, but it is not limited thereto. The damping member 30 can also be, for example, a columnar structure without a cavity inside.

[0114] And, in the above-described embodiment, the case where the slit 35 extends along the axial direction has been described, but it is not limited thereto. The extending direction of the slit 35 does not have to be parallel to the axial direction and can also be inclined with respect to the axial direction.

[0115] In addition, in the above-described embodiment, the case where the end portion on the base end side in the axial direction of the slit 35 is open has been described, but it is not limited thereto. The slit 35 can also be open at the end portion on the front end side in the axial direction.

[0116] In addition, in the above-described embodiment, the case where the number of the slits 35 is four has been described, but it is not limited thereto. The number of the slits 35 provided in the attenuation member 30 may be three or less, or may be five or more. The slit 35 may also be one. In the case where the slit 35 is one, the slit 35 may extend over the entire length of the attenuation member 30 in the axial direction. At this time, the slit 35 is open at both axial ends.

[0117] 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 it is not limited thereto. The plurality of slits 35 may also be provided at unequal intervals in the circumferential direction of the shaft support member 22.

[0118] Moreover, in the above-described embodiment, the case where the size of the contact portion 31 is compressed through the slit 35 and the contact portion 31 presses the inner circumferential surface 22a of the shaft support member 22 by the restoring force has been described. In addition, in the above-described modification, the case where the size of the contact portion 131 is expanded through the slit 35 and the contact portion 131 presses the outer circumferential surface 22b of the shaft support member 22 by the restoring force has been described. However, the structure in which the contact portions 31 and 131 press the shaft support member 22 is not limited thereto. That is, for example, the contact portions 31 and 131 may be formed of an elastic 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.

[0119] Furthermore, in the above-described embodiment and modification, the case where the contact portions 31 and 131 are located at the end portions on the proximal side in the axial direction, the fixing portions 32 and 132 are located at the end portions on the distal side in the axial direction, and the non-contact portions 33 and 133 are located between the fixing portions 32 and 132 has been described, but it is not limited thereto. The contact portions 31 and 131 may also be located at the end portions on the distal side in the axial direction, and the fixing portions 32 and 132 may be located at the end portions on the proximal side in the axial direction. The contact portions 31 and 131 and the fixing portions 32 and 132 only need to 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, or neither the contact portions 31 and 131 nor the fixing portions 32 and 132 may be arranged at the axial end portion. The contact portions 31 and 131 and the fixing portions 32 and 132 may also be adjacent in the axial direction. In this case, the non-contact portions 33 and 133 are not provided.

[0120] Further, in the above-described embodiments, the case where the thin-walled portion 23a having a wall thickness thinner than those of the adjacent portions 23b and 23c is provided in the side wall portion of the shaft support member 22 has been described, but the present invention is not limited thereto. The thin-walled portion 23a may be a portion of the side wall portion of the shaft support member 22 that is thinner than the thickest portion of the wall. Preferably, the thin-walled portion 23a is the thinnest portion of the shaft support member 22.

[0121] Furthermore, in the above-described embodiments and modified examples, 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-walled portion 23a in the axial direction has been described, but the present invention is not limited thereto. That is, the thin-walled portion 23a may not be provided in the shaft support member 22. In addition, the contact portions 31 and 131 and the fixing portions 32 and 132 may not sandwich the thin-walled portion 23a in the axial direction.

[0122] In addition, in the above-described embodiments and modified examples, the case where the wear resistance of the material of the contact portions 31 and 131 is higher than that of the portions other than the contact portions 31 and 131 in the damping members 30 and 130 has been described, but the present invention is not limited thereto. Preferably, at least the wear resistance of the contact surface of the contact portions 31 and 131 that contacts the shaft support member 22 is formed to be higher than that of the other portions. For example, the damping members 30 and 130 may be formed of iron or brass, and a wear-resistant layer having a wear resistance higher than that of iron or brass may be formed on the contact surface of the contact portions 31 and 131 that contacts the shaft support member 22. Examples of the wear-resistant layer include coatings such as hard chromium plating and ceramic spraying, and hardened layers formed by heat treatment. In addition, when the damping members 30 and 130 are formed of three or more materials, it is sufficient that at least the contact surface of the contact portions 31 and 131 that contacts the shaft support member 22 is formed of a material other than the material having the lowest wear resistance. In addition, the damping members 30 and 130 may be formed of only one material.

Claims

1. A vibration suppression system for a long member, comprising: Long members that are long in one direction and are subject to bending deformation due to vibration; and The damping member is used in a state of being mounted on the above-mentioned long member in order to suppress the vibration of the above-mentioned long member. The attenuation component has: A fixing portion, in the above-mentioned installation state, the position in the above-mentioned one direction is fixed relative to the above-mentioned long strip member; a contact portion, which, in the mounted state, is disposed at a position different from that of the fixing portion in the one direction, contacts the elongated surface of the elongated member while pressing the elongated surface extending in the one direction, and is movable relative to the elongated surface in the one direction; and The non-contact portion is disposed between the contact portion and the fixing portion and does not contact the extended surface of the elongated member in the mounted state.

2. The vibration suppression system for a long member according to claim 1, wherein: The above-mentioned long strip member is cylindrical, The elongated surface is the inner side surface of the elongated member. The damping member is attached to the elongated member by being inserted into the elongated member.

3. The vibration suppression system for a long member according to claim 2, wherein: The damping component is tubular and extends along the one direction in the installed state.

4. The vibration suppression system for a long member according to claim 3, wherein: The above-mentioned attenuation component is, A slit is formed, and in the above-mentioned installed state, the slit extends along the above-mentioned one direction and is open at least at one end of one side in the above-mentioned one direction, In the above-mentioned installed state, the above-mentioned contact portion is formed in the above-mentioned one direction in the region where the above-mentioned slit is formed, The damping member is inserted into the elongated member in a state where the size of the contact portion in a direction perpendicular to the one direction is compressed by the slit.

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

6. The vibration suppression system for a long member according to claim 1, wherein: The elongated surface is the outer side surface of the elongated member. The damping member is tubular and is attached to the elongated member by being fitted into the outer side of the elongated member.

7. The vibration suppression system for a long member according to claim 6, wherein: The above-mentioned attenuation component is, A slit is formed, and in the above-mentioned installed state, the slit extends along the above-mentioned one direction and is open at least at one end of one side in the above-mentioned one direction, In the above-mentioned installed state, the above-mentioned contact portion is formed in the above-mentioned one direction in the region where the above-mentioned slit is formed, The damping member is fitted to the outside of the elongated member in a state in which the size of the contact portion in a direction perpendicular to the one direction is expanded by the slit.

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

9. The vibration suppression system for a long member according to any one of claims 1 to 8, wherein: The elongated member comprises: a first portion; and a second portion, which is located at a different position from the first portion in the one direction, and has a cross-sectional area orthogonal to the one direction that is smaller than that of the first portion. In the mounted state, the damping member is arranged so that the contact portion and the fixing portion sandwich the second portion in the one direction.

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

11. A vibration suppression system for a long member, comprising: A cylindrical long member that is long in one direction and is deformed by bending due to vibration; and The damping member is tubular and is used in a state where it is mounted on the elongated member in a posture extending along the one direction in order to suppress the vibration of the elongated member. The above-mentioned attenuation component has: A fixing portion, in the above-mentioned installation state, the position of the above-mentioned one direction is fixed relative to the above-mentioned long strip member; and The contact portion is arranged at a position different from the fixing portion in the one direction in the above-mentioned installation state, contacts the elongated surface while pressing the inner side surface of the elongated member, i.e., the elongated surface extending along the one direction, and is relatively movable relative to the elongated surface in the one direction, and, A slit is formed, and in the above-mentioned installed state, the slit extends along the above-mentioned one direction and is open at least at one end of one side in the above-mentioned one direction, In the above-mentioned installed state, the above-mentioned contact portion is formed in the above-mentioned one direction in the region where the above-mentioned slit is formed, The damping member is inserted into the elongated member in a state where the size of the contact portion in a direction orthogonal to the one direction is compressed by the slit.

12. The vibration suppression system for an elongated member according to claim 11, wherein: The above-mentioned long strip member is cylindrical. A plurality of the slits are provided at equal intervals in the circumferential direction of the elongated member.

13. A vibration suppression system for a long member, comprising: Long members that are long in one direction and are subject to bending deformation due to vibration; and The damping member is tubular and is used in a state where it is mounted on the elongated member in a posture extending along the one direction in order to suppress the vibration of the elongated member. The above-mentioned attenuation component has: A fixing portion, in the above-mentioned installation state, the position of the above-mentioned one direction is fixed relative to the above-mentioned long strip member; and The contact portion is arranged at a position different from the fixing portion in the one direction in the above-mentioned installation state, contacts the elongated surface while pressing the outer side surface of the elongated member, i.e., the elongated surface extending along the one direction, and is relatively movable relative to the elongated surface in the one direction, and, A slit is formed, and in the above-mentioned installed state, the slit extends along the above-mentioned one direction and is open at least at one end of one side in the above-mentioned one direction, In the above-mentioned installed state, the above-mentioned contact portion is formed in the above-mentioned one direction in the region where the above-mentioned slit is formed, The damping member is fitted to the outside of the elongated member in a state in which the size of the contact portion in a direction orthogonal to the one direction is expanded by the slit.

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

15. The vibration suppression system for an elongated member according to any one of claims 11 to 14, wherein: A non-contact portion is provided, the non-contact portion being disposed between the contact portion and the fixing portion and not in contact with the extended surface of the elongated member in the mounted state.

16. The vibration suppression system for an elongated member according to claim 15, wherein: The elongated member comprises: a first portion; and a second portion, which is located at a different position from the first portion in the one direction, and has a cross-sectional area orthogonal to the one direction that is smaller than that of the first portion. In the mounted state, the damping member is arranged so that the contact portion and the fixing portion sandwich the second portion in the one direction.

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

18. A bobbin holder, cantilever supported on a machine body, comprising: The axis of rotation extends in one direction; a bobbin holding member mounted on 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 arranged in the one direction; and The shaft support component is a cylindrical component that is longer in the one direction, one of the two ends in the one direction is supported by the body, and the rotating shaft is inserted into the shaft support component, and the shaft support component supports the rotating shaft to rotate freely via a bearing. In the vibration suppression system for the long member according to any one of claims 1 to 17, the damping member is used in a state of being attached to the shaft supporting member in order to suppress vibration of the shaft supporting member.

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