JP2005207538A - Friction damper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a friction damper having stable damping property for a long period by minimizing the wear of a sliding layer without being affected by corrosion. <P>SOLUTION: The friction damper 1 comprises a base 2, a support 4 fixed to a long member 35 of the base 2 and having a through-hole 3, a rod 7 extending through the through-hole 3 of the support 4, movable relative to the support 4 in an axial direction X and having a columnar body 85, a stainless steel cylinder body 16 mounted on an outer surface 15 of the body 85 of the rod 7, and a friction member 9 having a cylinder portion 8 laid in the through-hole 3 of the support 4 between the support 4 and the stainless steel cylinder body 16 and fixed non-movable relative to the stainless steel cylinder body 16 when moved in the axial direction X with the movement of the rod 7 relative to the base 2 in the same direction. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a friction damper that is attached between a pair of members that are displaced relative to each other and absorbs the displacement energy between the members by friction to attenuate the displacement as quickly as possible. The present invention relates to a friction damper that absorbs vibration energy generated by an earthquake or the like in a structure such as a detached house or a bridge and attenuates the vibration as quickly as possible.

Japanese Examined Patent Publication No. 39-22444 JP-A-5-248468 Japanese Utility Model Publication No. 63-115642 Japanese Utility Model Publication No. 2-122235 JP 2003-278828 A

  As dampers that quickly attenuate vibrations such as rolls caused by earthquakes, etc., those using viscous deformation of viscous bodies, those using plastic deformation of lead, steel bars, etc., friction of sliding members were used Things are known.

  For dampers that use viscous materials, it takes a long time to fill the viscous material, and it is necessary to provide a tight seal to prevent leakage. For dampers that use lead, steel rods, etc., environmental pollution caused by lead In addition, there is a need to securely hold both ends of a lead, a steel rod, etc., in a pair of members that are displaced relative to each other.

  On the other hand, in a damper using a sliding member, there is a risk of characteristic deterioration due to wear of the sliding member, and there is a possibility that the sliding layer of the sliding member is peeled off and this also causes characteristic deterioration.

  Therefore, Patent Document 5 proposes a friction damper that has a simple configuration and can reduce wear and slip layer separation as much as possible and obtain stable damping characteristics over a long period of time. In the damper, the surface of the rod and the sliding layer of the friction member are slidably brought into contact with each other, and vibration is damped as quickly as possible by this frictional resistance. If the rod is used as a rod, the surface of the rod does not have any smoothness in relation to the surface of the sliding layer of the friction member, so that it is difficult to obtain a stable friction by avoiding wear of the sliding layer as much as possible. As a result, the surface of the manufactured steel rod and steel pipe is ground and polished, and the steel rod and steel pipe subjected to such grinding and polishing are used as the rod. In addition, even if a steel rod or pipe having a surface with a certain smoothness is used, if the surface is corroded by long-term use, it is difficult to obtain stable friction as described above.

  The present invention has been made in view of the above-mentioned points, and the object of the present invention is to eliminate the surface grinding and polishing process, and to slide between the surface having a certain smoothness and the sliding layer. As a result of being able to contact freely, wear of the sliding layer can be reduced as much as possible, and in addition, it is possible to avoid being affected by corrosion, and thus to provide a friction damper capable of obtaining stable damping characteristics over a long period of time. There is.

  A friction damper according to a first aspect of the present invention includes a base body that can be attached to one member of a pair of members that are displaced relative to each other, and a through hole that is fixed to the base body. And a support that has a through hole in the support and is movable in the axial direction with respect to the support and can be attached to the other member of the pair of members. A rod that is attached to the outer surface of the rod, and a cylindrical portion that is interposed between the support and the stainless steel plate cylinder in the through hole of the support. And a friction member fixed to the base member relative to the axial movement of the rod. The cylindrical portion of the friction member includes a stainless steel plate cylinder and its shaft. Sliding in direction And a sliding surface of the synthetic resin in contact with.

  According to the friction damper of the first aspect, the stainless steel plate cylinder is attached to the outer surface of the rod, and the synthetic resin sliding surface of the cylindrical portion is in the stainless steel plate cylinder and its axial direction. Since it comes in slidable contact, it can be used as a rod without grinding or polishing the surface of the manufactured steel rod or tube without any grinding or polishing work. As a result of the slidable contact between the surface of the cylindrical body made of stainless steel plate having the thickness and the sliding surface made of the synthetic resin of the cylindrical portion, wear of the sliding surface can be reduced as much as possible. Because the slidable contact material is a stainless steel plate cylinder that does not generate rust, even if rust is generated on the surface of the rod, it can be prevented from being affected by such rust. Stable It is possible to obtain the attenuation characteristic.

  A friction damper according to a second aspect of the present invention further includes a fastening means for fastening the cylindrical portion of the friction member to the cylindrical body made of a stainless steel plate in the friction damper according to the first aspect. The through hole and the cylindrical portion of the friction member can be freely reduced in diameter, and the tightening means reduces the diameter of the cylindrical portion of the friction member through the reduced diameter of the through hole of the support, and the cylindrical portion is made of a stainless steel plate cylinder. To be tightened.

  According to the friction damper of the second aspect, the cylindrical portion of the friction member can be optimally adjusted and tightened to the cylindrical body made of stainless steel plate by the tightening means. In contrast, an optimum frictional resistance can be obtained.

  The support preferably has a slit communicating with the through-hole, like the friction damper of the third aspect of the present invention, and the diameter of the support can be freely reduced. Like the friction damper of the fourth aspect, it has a bolt screwed to the support so that the width of the slit can be reduced.

  Further, the support body is preferably divided into two parts so that the diameter can be reduced, like the friction damper of the fifth aspect of the present invention. In this case, the fastening means is preferably the sixth aspect of the present invention. Like the friction damper of the aspect, it has a bolt screwed to the support so that the width of the gap between the two divided bodies can be reduced.

  In a preferred example, the cylindrical portion of the friction member, like the friction damper of the seventh aspect of the present invention, has a slit extending from its one end surface to the other end surface in the axial direction and can be reduced in diameter, Or like the friction damper of the 8th aspect of this invention, it is divided into 2 parts and can be diameter-reduced freely.

  In the present invention, the friction member is preferably provided with a flange portion integrally formed with the cylindrical portion in addition to the cylindrical portion, like the friction damper of the ninth aspect thereof, and a rod with respect to the base body at the flange portion. It is fixed to the relative movement in the axial direction.

  In the through hole of the support fixed to the base, an annular groove is formed on the inner peripheral surface of the support, and a friction member is fitted into the annular groove. The friction member may be fixed so as not to move relative to the axial movement of the rod relative to the base.

  A friction damper according to a tenth aspect of the present invention is the friction damper according to any one of the second to ninth aspects, comprising a plurality of supports arranged in the axial direction. And fastening means and a friction member.

  According to the friction damper of the tenth aspect, since the displacement energy is absorbed by the plurality of friction members, the load of each friction member can be reduced. As a result, stable damping characteristics can be obtained over a long period of time. Can be obtained.

  The friction damper of the present invention is not limited to the one provided with such a plurality of supports and friction members, and may be one provided with one long support and one long friction member. Well, in this case, the long cylindrical portion of one friction member may be fastened to the cylindrical body made of stainless steel plate by a fastening means composed of a plurality of bolts or the like through one long support. Good.

  A friction damper according to an eleventh aspect of the present invention is the friction damper according to any one of the second to eighth aspects, and includes a plurality of support bodies arranged in the axial direction. In addition to the cylindrical portion, each friction member includes a flange portion integrally formed with the cylindrical portion, and the adjacent support body in the flange portion is provided. It is sandwiched and fixed so as not to move relative to the base in the axial direction of the rod.

  According to the friction damper of the eleventh aspect of the present invention, similarly to the friction damper of the tenth aspect, the displacement energy is absorbed by the plurality of friction members. As a result of this reduction, stable damping characteristics can be obtained over a long period of time, and each friction member is sandwiched between adjacent supports at the heel portion, thereby allowing relative movement of the rod in the axial direction with respect to the base. On the other hand, since it is fixed immovably, each friction member can be firmly fixed, and the disadvantage that the friction member is displaced with respect to the support can be eliminated.

  In the friction damper according to the twelfth aspect of the present invention, in the friction damper according to any one of the first to eleventh aspects, the base is fixed to the cylindrical body and one end of the cylindrical body, and the rod One lid having a through-hole through which a stainless steel plate cylinder attached to the outer surface passes, and a fixture fixed to the other end of the cylinder and attached to one member are attached. The other cover body is provided, and the support body is fixed to the inner peripheral surface of the cylindrical body.

  A friction damper according to a thirteenth aspect of the present invention is the friction damper according to any one of the first to twelfth aspects, wherein at least one variable shape interposed between the support and the cylindrical portion of the friction member. A member is further provided.

  In the present invention, when the deformable member is provided like the friction damper of the thirteenth aspect, the cylindrical portion of the friction member can be brought into uniform contact with the cylindrical body made of stainless steel plate.

  The deformable member is preferably provided with a slit so as to be able to be reduced in diameter like the friction damper of the fourteenth aspect of the present invention, or like the friction damper of the fifteenth aspect of the present invention. The diameter is reduced by being divided into two parts.

  The deformable member, like the friction damper according to the sixteenth aspect of the present invention, is elastically deformed in its thickness direction, particularly when the cylindrical portion of the friction member is tightened to the stainless steel plate cylinder by the tightening means. Depending on the nature, the cylindrical portion of the friction member may be made of a rubber plate, a copper plate, an aluminum plate, or an embossed plate that can uniformly contact the cylindrical body made of stainless steel plate.

  Only one deformable member may be interposed between the support and the cylindrical portion of the friction member. Instead, a plurality of deformable members may be used, such as the friction damper of the seventeenth aspect of the present invention. The deformable member may be interposed between the support and the cylindrical portion of the friction member.

  The rod preferably consists of a solid member or a hollow member, like the friction damper of the eighteenth aspect of the present invention.

  In any of the above aspects of the invention, the cylindrical body made of stainless steel plate is a single stainless steel flat plate or sheet, and the stainless steel flat plate or sheet is wound around the rod in a cylindrical shape. Instead of this, at least a pair of stainless steel flat plates or sheets are prepared, and at least a pair of stainless steel flat plates or sheets are wound around the rod in a semi-cylindrical shape. It may be provided with at least a pair of stainless steel plate semi-cylindrical bodies such as the friction damper of the nineteenth aspect of the present invention.

  Even if the cylindrical part of the friction member is entirely made of a synthetic resin, the porous sintered layer sintered on the thin steel plate is impregnated with the synthetic resin and the synthetic resin slips on one surface of the porous sintered layer. It may be a layer formed or a synthetic steel sliding layer formed on a thin steel plate, and is arranged on the outer peripheral surface side in the radial direction as in the friction damper of the twentieth aspect of the present invention. And the base material of the reticulated body, and the synthetic resin sliding layer formed on one surface of the base material and filling the network of the base material, in this case, the sliding layer, It is arranged on the inner peripheral surface side in the radial direction of the cylindrical portion so as to slidably contact the cylindrical body made of stainless steel plate and its axial direction.

  The friction damper according to the twenty-first aspect of the present invention is a base that can be attached to one member of a pair of members that are displaced relative to each other, and is fixed to the base at one end. And a pair of sandwiching plates disposed opposite to each other and a flange portion extending between the pair of sandwiching plates and displacement based on relative displacement of the pair of members with respect to the pair of sandwiching plates A long H-shaped member that is movable in the direction and can be attached to the other member of the pair of members, and a pair of outer surfaces facing the flange portion of the H-shaped member With respect to the relative movement in the displacement direction of the H-shaped member with respect to the base body, which is interposed between the sandwich plate and the stainless steel flat plate between the pair of sandwich plates and the stainless steel flat plate respectively attached. Bad Has and a fixed plate-like friction member, wherein the friction member has a sliding surface made of synthetic resin which slidably contacts the displacement direction and stainless steel flat plates.

  In the friction damper of the twenty-first aspect, the stainless steel flat plate is attached to each of the pair of outer surfaces facing the flange portion, and the synthetic resin sliding surface of the friction member is displaced with the stainless steel flat plate. Since it is configured to be slidably contacted in the direction, as in the friction damper of the first aspect, the manufactured H-shaped steel is not ground or polished on the surface of the flange portion. However, it can be used as an H-shaped member, and the surface of the stainless steel flat plate having a certain smoothness and the sliding surface of the friction member can be slidably brought into contact with each other. In addition, since the mating material with which the sliding surface is slidably contacted is a flat plate made of stainless steel that does not generate rust, as with the friction damper of the first aspect, an H-shaped member Even rust is generated on the surface can be to protect against such rust, it is possible to obtain a stable damping characteristics over a long period of time and Thus.

  Similar to the friction damper of the second aspect of the present invention, the friction damper of the twenty-second aspect of the present invention further comprises fastening means for tightening the friction member to the stainless steel flat plate. The clamping plate has a free end in the thickness direction at the other end, and the fastening means narrows the distance between the pair of clamping plates and fastens the friction member to the stainless steel flat plate.

  In the friction damper of the twenty-second aspect as well, the friction member can be optimally adjusted and tightened to the stainless steel flat plate by the tightening means, similarly to the friction damper of the second aspect. Thus, an optimum frictional resistance can be obtained for a pair of members that are relatively displaced.

  The fastening means is preferably a bolt penetrating the pair of sandwiching plates so as to reduce the interval between the pair of sandwiching plates, such as the friction damper of the twenty-third aspect of the present invention. Or a bolt that passes through one clamping plate of the pair of clamping plates and is screwed to the other clamping plate of the pair of clamping plates. Like the friction damper of the twenty-fourth aspect, the flange portion has a long hole extending in the displacement direction, and the bolt may penetrate the long hole of the flange portion.

  In the friction damper according to the twenty-fifth aspect of the present invention, in the friction damper according to any one of the twenty-first to twenty-fourth aspects, the base body includes another H-shaped member, and a pair of holding members The plate is fixed at one end to the flange portion of another H-shaped member.

  A friction damper according to a twenty-sixth aspect of the present invention is the friction damper according to any one of the twenty-first to twenty-fifth aspects, wherein at least one possible damper interposed between the clamping plate and the friction member. A deformation member is further provided.

  In the present invention, when the deformable member is provided as in the friction damper of the twenty-sixth aspect, the friction member is uniformly brought into contact with the stainless steel flat plate, similarly to the friction damper of the thirteenth aspect. Can do.

  In the friction damper of the twenty-sixth aspect, the deformable member is provided in the thickness direction particularly when the friction member is tightened to the stainless steel flat plate by the tightening means, like the friction damper of the twenty-seventh aspect. It is good to consist of a rubber plate, a copper plate, an aluminum plate, or an embossed plate which can make a friction member contact uniformly with a stainless steel flat plate by elastic deformability.

  Only one deformable member may be interposed between the sandwiching plate and the friction member, but instead, a plurality of deformable members such as the friction damper according to the twenty-eighth aspect of the present invention. May be interposed between the sandwiching plate and the friction member.

  The long H-shaped member is preferably made of so-called H-shaped steel, like the friction damper of the twenty-ninth aspect of the present invention.

  In the friction damper according to any of the twenty-first to twenty-ninth aspects, even if the friction member is entirely made of a synthetic resin, the porous sintered layer sintered on the thin steel plate is impregnated with the synthetic resin. In addition, a synthetic resin sliding layer may be formed on one surface of the porous sintered layer or a synthetic resin sliding layer may be formed on a thin steel plate, and preferably the thirty-first aspect of the present invention. As in the friction damper of the aspect, the base material of the net-like body arranged on one outer surface side in the thickness direction, and the synthetic resin formed on the one surface of the base material while filling the mesh of the base material In this case, the sliding layer is arranged on the other outer surface side in the thickness direction of the friction member so as to slidably contact the stainless steel flat plate in the displacement direction. .

  In the friction damper according to the twentieth or thirty aspects, the base material is preferably formed of a plurality of slits in a metal sheet, preferably a metal sheet made of phosphor bronze, like the friction damper according to the thirty-first aspect of the present invention. Stainless steel wire such as expanded metal or austenitic SUS304, SUS316, ferrite SUS430, or iron wire obtained by stretching a metal sheet made of phosphor bronze into which a large number of slits have been cut in a direction perpendicular to the cutting direction. (JIS-G-3532), galvanized iron wire (JIS-G-3547), copper-nickel alloy (white copper) wire, copper-nickel-zinc alloy (white) wire, metal made of brass wire or beryllium copper wire, etc. It consists of a wire mesh formed by weaving or knitting using one or more fine wires.

  The sliding layer preferably contains a polyimide resin like the friction damper of the thirty-second aspect of the present invention, and the tetrafluoroethylene resin like the friction damper of the thirty-third aspect of the present invention. Is included.

  In the present invention, the plate-like friction member is synthesized by filling a mesh of a metal sheet on one surface of a metal sheet (mesh metal sheet) made of expanded metal or a metal mesh having a large number of meshes. After forming a sliding layer made of a resin, preferably a polyimide resin, a tetrafluoroethylene resin, or a mixture thereof, a metal sheet having such a sliding layer formed on one side was cut into a long strip. As the friction member having a cylindrical portion, the above-mentioned metal sheet is cut into strips, and the strip-like metal sheet is wound once with the sliding layer on the inner peripheral side. Forming a cylindrical body having a slit extending from one end surface to the other end surface formed between the butted ends of the metal sheet, and then pressing the cylindrical body to form a cylindrical portion and a flange portion However, the present invention is not limited to these, and the plate-like friction member is composed entirely of polyimide resin, tetrafluoroethylene resin, or a mixture thereof. One of the porous sintered layers is made by impregnating a porous sintered layer made of a resin plate or thin steel plate with a synthetic resin made of polyimide resin, ethylene tetrafluoride resin, or a mixture thereof. It may also be a plate-like body or the like having a synthetic resin sliding layer made of polyimide resin or tetrafluoroethylene resin or a mixture of these on the surface, and as a friction member having a cylindrical portion, The entire structure made of polyimide resin, tetrafluoroethylene resin, or a mixture thereof is made of a synthetic resin cylindrical body or a porous sintered layer sintered into a thin steel plate. Alternatively, it is impregnated with a synthetic resin composed of a tetrafluoroethylene resin or a mixture thereof, and is also composed of a polyimide resin, a tetrafluoroethylene resin, or a mixture thereof on one surface of the porous sintered layer. A cylindrical body or the like on which a synthetic resin sliding layer is formed may be used.

  According to the present invention, the surface grinding and polishing process can be eliminated, and the surface having a certain smoothness and the sliding layer can be slidably brought into contact with each other, so that the wear of the sliding layer can be reduced as much as possible. In addition, it is possible to provide a friction damper which can be prevented from being affected by corrosion and thus can obtain a stable damping characteristic over a long period of time.

  Next, embodiments of the present invention will be described in more detail based on preferred examples shown in the drawings. The present invention is not limited to these examples.

  1 to 6, the friction damper 1 of the present example includes a base body 2 and a plurality of base members 2 that are fixed to the long member 35 of the base body 2 and that have through holes 3 and are arranged in the axial direction X. In this example, the three supports 4, 5 and 6 extend through the through holes 3 of the supports 4, 5 and 6 and are axially X with respect to the supports 4, 5 and 6. The rod 7 having a cylindrical main body 85 and the cylindrical body 16 made of stainless steel plate attached to the outer surface 15 of the main body 85 of the rod 7 are respectively supported by the supports 4, 5. Of the rod 7 with respect to the base body 2 and the cylindrical portion 8 interposed between the support bodies 4, 5 and 6 and the cylindrical body 16 made of stainless steel plate in the corresponding through holes 3. The relative movement of X, in other words, the stainless steel due to the relative movement of the rod 7 in the axial direction X. Friction members 9, 10, and 11 that are fixed to the movement of the steel plate cylinder 16 in the same direction and are provided for the supports 4, 5, and 6, respectively, 11 are provided with fastening means 12, 13 and 14 provided for the support bodies 4, 5 and 6 so as to fasten the respective cylindrical portions 8 to the cylindrical body 16 made of stainless steel plate.

  The base body 2 is a stainless steel plate that is fixed to the inner surface of one end portion 22 of the cylindrical body 21 with a screw 23 and attached to the main body 85 of the rod 7 while extending in the axial direction X. One lid body 25 having a through-hole 24 through which the cylindrical body 16 passes, and an inner surface of the other end portion 26 of the cylinder body 21 are fixed by screws 27 and a U-shaped fixture 28 is secured by bolts 29. The cylinder body 21 includes a long member 35 having a U-shaped cross section, and the cover body 25 and the cover body 30 so as to close the opening surface of the long member 35. And a plate member 37 attached at both ends by screws 36, and one member of a pair of members displaced relative to each other, for example, a detached house as a structure as shown in FIG. The fixture 28 for attaching the base body 2 to the lower beam 38 is inserted into the shaft. Has a through-hole 39 of the use.

  The base body 2 can be rotatably attached to the lower beam 38 by the lid body 30 via the shaft member 40 inserted through the through hole 39 of the fixture 28.

  Since each of the support bodies 4, 5 and 6 is formed in the same manner, the support body 4 will be described in detail below, and the support bodies 5 and 6 will be described as necessary.

  In addition to the through-hole 3, the substantially rectangular parallelepiped support 4 has a slit (cut) 41 communicating with the through-hole 3 so that the through-hole 3 can be reduced in diameter as shown in FIG. Furthermore, the support 4 has a female screw hole 42 and a screw insertion hole 43 that faces the female screw hole 42 and is arranged in a row with the female screw hole 42. The peripheral surface is fixed with screws 44.

  Since each of the friction members 9, 10 and 11 is formed in the same manner, the friction member 9 will be described in detail below, and the friction members 10 and 11 will be described as necessary.

  As shown particularly in FIG. 4, the friction member 9 includes a flange portion 51 formed integrally with the cylindrical portion 8 in addition to the cylindrical portion 8, and the flange portion 51 is a through-hole of the adjacent support body 5. 3, the side surfaces 52 and 53 of the support members 4 and 5 facing each other are overlapped with the flange portion 51 of the friction member 10 having the cylindrical portion 8 interposed between the support member 5 and the cylindrical body 16 made of stainless steel plate. The friction member 9 is arranged so as to be sandwiched between the side surfaces 52 and 53. Thus, the friction member 9 moves relative to the base 2 in the axial direction X of the rod 7 in the flange portion 51, that is, the stainless steel plate cylinder 16. It is fixed so as not to move relative to the axial direction X.

  The friction member 11 having the cylindrical portion 8 interposed between the support 6 and the stainless steel plate cylindrical body 16 in the through hole 3 of the support 6 has a support 25 and a lid 25 adjacent to the support 6. In the flange portion 51 sandwiched between the side surfaces 54 and 55 facing each other, the rod 7 and the stainless steel plate cylindrical body 16 are moved relative to each other in the axial direction X with respect to the base 2. On the other hand, it is fixed fixedly.

  As shown in FIG. 7, the friction member 9 fills one surface of a metal sheet (mesh metal sheet) made of an expanded metal or a metal mesh 62 having a large number of meshes 61 with a mesh 61 of the metal sheet. After forming the sliding layer 63 made of polyimide resin, tetrafluoroethylene resin, or a mixture thereof, the metal sheet having the sliding layer 63 formed on one side is cut into strips, A cylinder having a slit extending from one end face to the other end face formed between the butt ends 64 and 65 of the metal sheet by winding the metal sheet once so that the sliding layer 63 is on the inner peripheral side. An expanded metal or wire net 62 as a base material of the net-like body arranged on the outer peripheral surface side in the radial direction, and press-molding this cylindrical body, and the net-like body And a sliding layer 63 made of a synthetic resin which is formed on one surface of the expanded metal or wire mesh 62 and is arranged on the inner peripheral surface side in the radial direction. The cylindrical portion 8 and the flange portion 51 formed integrally with the cylindrical portion 8 are manufactured.

  The cylindrical portion 8 of the friction member 9 manufactured in this way has a slit 73 extending from its one end surface 71 to the other end surface 72 in the axial direction X and can be reduced in diameter. Moreover, it has the slit 74 extended to radial direction following the slit 73, and, thereby, the cylindrical part 8 can be diameter-reduced freely.

  In the friction member 9, the sliding layer 63 containing at least one of polyimide resin and ethylene tetrafluoride resin has a sliding surface made of synthetic resin as a surface of the cylindrical body 16 made of stainless steel plate and its axial direction X. The cylindrical portion 8 is arranged on the inner peripheral surface side in the radial direction so as to be slidably contacted with the cylindrical portion 8.

  Since the fastening means 12, 13 and 14 are also formed in the same manner, the fastening means 12 will be described in detail below, and the fastening means 13 and 14 will be described as necessary.

  The tightening means 12 includes a bolt 81 that is inserted into the support 4 through the screw insertion hole 43 and screwed into the female screw hole 42 of the support 4 so that the width of the slit 41 can be reduced. To change the screwed state with the female screw hole 42, thereby reducing the width of the slit 41 and reducing the diameter of the through hole 3 of the support body 4, and the cylindrical portion 8 of the friction member 9 is moved through this reduced diameter. The diameter is reduced, and the cylindrical portion 8 is fastened to the cylindrical body 16 made of stainless steel plate.

  The rod 7 made of a steel rod includes a cylindrical main body portion 85 and screw portions 86 and 87 integrally formed at both end portions in the axial direction X of the main body portion 85. A nut 88 for retaining is screwed, and a U-shaped fixture 91 having a through hole 90 for inserting a shaft member through a nut 89 screwed to the screw portion 87 is screwed to the screw portion 87. Is installed.

  The rod 7 has a threaded portion 87 and the other member of the pair of members that are displaced relative to each other, for example, the upper beam 92 of a detached house as a structure as shown in FIG. A shaft member 93 inserted through 90 can be pivotally attached.

  The stainless steel plate cylinder 16 prepares a stainless steel flat plate or sheet, and the stainless steel flat plate or sheet is cylindrically formed on the outer surface 15 of the main body 85 made of a steel rod as shown in FIG. It is wrapped and attached. In this case, a stainless steel plate cylinder 16 may be formed by winding a stainless steel flat plate or sheet around the entire length of the main body 85, but instead, the magnitude of vibration amplitude In this connection, the stainless steel plate cylindrical body 16 may be formed by winding a stainless steel flat plate or sheet around the main body portion 85 only in a region where the friction member 9 slidably contacts the cylindrical portion 8. By attaching the stainless steel plate cylindrical body 16 to the outer surface 15 of the main body 85, the outer surface 15 of the main body 85, that is, the outer surface of the steel rod does not have to be ground and polished in advance. Since the stainless steel plate cylinder 16 is formed by winding a stainless steel flat plate or sheet around the outer surface of the steel rod not to be formed, the stainless steel plate cylinder 16 and the outer surface 15 of the main body 85 are interposed between them. Further, as a result of being able to obtain a friction resistance larger than the friction resistance between the cylindrical portion 8 of the friction member 9 and the stainless steel plate cylinder 16, the stainless steel plate cylinder 16 is pivoted with respect to the main body 85. It can be held on the outer surface 15 of the main body 85 so as not to slide in the direction X.

  As shown in FIG. 8, the friction damper 1 described above includes a rod 2 that is rotatable on a lower beam 38 that is stretched between columns 96 via a fixture 28, a shaft member 40, and a mounting plate 95. 7 is attached to the upper beam 92 stretched between the columns 96 through the fixture 91, the shaft member 93 and the mounting plate 97 so as to be rotatable.

  When the upper beam 92 is displaced relative to the lower beam 38 in the lateral direction H due to the earthquake, the rod 7 moves relative to the base 2 in the axial direction X. In the relative movement in the axial direction X of the rod 7 with respect to the base body 2, the relative movement energy, in other words, the lower is caused by the friction between the cylindrical portion 8 of the friction member 9 and the cylindrical body 16 made of stainless steel plate. The relative displacement energy in the lateral direction H of the upper beam 92 with respect to the beam 38 is absorbed, and the relative displacement in the lateral direction H of the upper beam 92 with respect to the lower beam 38 is reduced at an early stage.

  According to the friction damper 1, the stainless steel plate cylinder 16 is attached to the outer surface 15 of the main body 85, and the synthetic resin sliding surface which is the surface of the sliding layer 63 is formed of the stainless steel plate cylinder 16. And the axial direction X is slidably contacted, so that the manufactured steel rod can be used as the body portion 85 of the rod 7 without being ground or polished on the surface. In addition, the surface of the cylindrical body 16 made of stainless steel plate having a certain smoothness and the sliding surface of the sliding layer 63 can be slidably brought into contact with each other. As a result, the sliding surface of the sliding layer 63 is worn. In addition, since the counterpart material with which the sliding surface of the sliding layer 63 slidably contacts is the stainless steel plate cylindrical body 16 that does not generate rust, the outer surface 15 of the main body 85 is temporarily rusted. Depart And also to protect against such rust, it is possible to obtain a stable damping characteristics over a long period of time and Thus.

  Further, according to the friction damper 1, the base material of the friction member 9 is a net-like body made of expanded metal or wire mesh 62, and the sliding layer 63 of the friction member 9 fills the mesh 61 of the expanded metal or wire mesh 62 so that the expanded An inner peripheral surface in the radial direction of the cylindrical portion 8 is formed on one surface of a metal or wire mesh 62 so that the sliding layer 63 is slidably in contact with the cylindrical body 16 made of stainless steel plate and its axial direction X. Therefore, it is possible to avoid wear between the cylindrical body 16 made of stainless steel plate as much as possible and obtain a desired friction between the stable cylindrical body 16 made of stainless steel plate and the cylindrical portion 8. In addition, it is possible to avoid the peeling of the sliding layer 63 and to obtain a stable damping characteristic over a long period of time.

  Furthermore, according to the friction damper 1, since the cylindrical portion 8 of the friction member 9 can be optimally adjusted and tightened to the cylindrical body 16 made of stainless steel plate by the tightening means 12, relative to the lateral direction H can be achieved with a simple operation. An optimum frictional resistance can be obtained for the upper beam 92 and the lower beam 38 that are displaced.

  In addition, according to the friction damper 1, since the displacement energy is absorbed by the three friction members 9, 10 and 11, each load of the friction members 9, 10 and 11 can be reduced. In addition, a stable attenuation characteristic can be obtained over a long period of time.

  Further, according to the friction damper 1, the friction members 9, 10, and 11 are sandwiched between the support bodies 4 and 5, the support body 6, and the lid body 25 adjacent to each other at the flange portion 51, and the axial direction X of the rod 7 with respect to the base body 2. The friction members 9, 10, and 11 can be firmly fixed, and the friction members 9, 10, and 11 can be fixed to the supports 4, 5, and 6. Inconveniences such as shifting may be eliminated.

  The support 4 is integrally formed with the through hole 3 and the slit 41, but instead of this, as shown in FIGS. 9 and 10, a semicircle forming the through hole 3 is formed. The support body 4 may be constituted by the two-part bodies 103 and 104 each having the holes 101 and 102, and the through-hole 3 may be reduced in diameter by the two-part bodies 103 and 104. 9 and FIG. 10, in the support body 4 including the two divided bodies 103 and 104, one divided body 103 is fixed to the long member 35 of the base 2 with a screw 105, and the other divided body 104 is fixed to the semicircular hole. 102 is movably disposed in the cylindrical body 21 so as to face the semicircular hole 101, and the fastening means 12 for the support body 4 can reduce the width of the gap 106 between the two divided bodies 103 and 104. Furthermore, two bolts 81 inserted into the divided body 104 of the support body 4 through the two screw insertion holes 43 of the divided body 104 and respectively screwed into the two female screw holes 42 of the divided body 103 of the support body 4. have.

  The friction damper 1 provided with the support 4 as shown in FIGS. 9 and 10 can achieve the same effects as described above.

  In the friction damper 1 described above, the support 4 is brought into direct contact with the cylindrical portion 8 of the friction member 9 and the cylindrical portion 8 is fastened to the cylindrical body 16 made of stainless steel plate. As shown in FIG. 3, the cylindrical deformable member 112 made of a rubber plate, a copper plate, an aluminum plate, or an embossed plate has a slit 111 and can be reduced in diameter. By interposing between the friction member 9 and the cylindrical portion 8, the tightening means 12 via the support member 4 is used to further tighten the cylindrical portion 8 to the stainless steel plate cylindrical body 16 via the deformable member 112. Alternatively, the deformable member 112 made of a rubber plate, a copper plate, an aluminum plate, or an embossed plate can elastically allow some deformation in the radial direction, specifically, some change in the radial thickness. By interposing between the support 4 and the cylindrical portion 8 of the friction member 9, it is possible to cope with creep deformation of the friction member 9 and the like by elastic deformation of the deformable member 112. As a result, the cylindrical portion 8 is made of stainless steel. The steel plate cylinder 16 can be uniformly pressed and brought into contact with each other, so that an appropriate frictional resistance can be obtained throughout.

  In the example shown in FIGS. 11 and 12, one deformable member 112 is interposed between the support 4 and the cylindrical portion 8, but a plurality of the deformable members 112 are overlapped with each other, The deformable member 112 may be interposed between the support 4 and the cylindrical portion 8.

  Further, the friction member 9 has the cylindrical portion 8 and the flange portion 51 and is integrally formed so that the diameter thereof can be reduced by the slit 73. Instead, as shown in FIGS. A split body 123 composed of a semi-cylindrical part 121 and a semi-cylindrical part 122 formed integrally with the semi-cylindrical part 121, and a semi-cylindrical part 131 and a semi-cylindrical part 132 integrally formed with the semi-cylindrical part 131. The friction member 9 is configured with the divided body 133 and the cylindrical portion 8 formed of the semi-cylindrical portion 121 and the semi-cylindrical portion 131 is made into such two divided bodies 123 and 133 so that the diameter can be reduced. May be.

  As shown in FIGS. 13 and 14, the deformable member 112 may also be composed of two divided bodies 141 and 142 so that the diameter can be reduced by the two divided bodies 141 and 142. The divided body 142 is interposed between the divided body 104 and the semi-cylindrical part 131 between the body 103 and the semi-cylindrical part 121.

  Further, the stainless steel plate cylindrical body 16 may also be configured to include a semi-cylindrical two-part body, similarly to the friction member 9 and the deformable member 112.

  In addition, as shown in FIG. 2, FIG. 9, etc., the main body portion 85 of the rod 7 may be made of a solid member having a cylindrical surface on the outer peripheral surface using a steel rod. As shown in FIG. 13, the main body 85 of the rod 7 may be formed of a hollow member using a steel pipe or the like, that is, a tube member.

  In the friction damper 1, a steel rod is used for the rod 7, and the cylindrical body 16 made of stainless steel plate is attached to the outer surface 15 of the main body 85 made of such a steel rod. As shown in FIG. 18, the friction damper 201 may be configured using an H-shaped member, a stainless steel flat plate, or the like. That is, the friction damper 201 shown in FIGS. 15 to 18 includes an H-shaped steel 202 as an H-shaped member and is attached to the lower beam 38 which is one of the lower beam 38 and the upper beam 92. The base 203 and the flanges 204 and 205 of the H-shaped steel 202 are fixed to each other by bolts 207 and nuts 208 screwed to the bolts 207 at one end 206 and face each other. A pair of sandwiching plates 209 and 210, and flange portions 221 and 222 extending between each pair of sandwiching plates 209 and 210, and a lower beam with respect to each pair of sandwiching plates 209 and 210 The upper beam that is movable in the displacement direction Y (corresponding to the axial direction X) based on the relative displacement in the lateral direction H of the upper beam 92 and the upper beam 92 and is the other member of the lower beam 38 and the upper beam 92 H-shaped steel 223 as a long H-shaped member that can be attached to the two, and a pair of opposed outer surfaces 226 and 227 of the flange portions 221 and 222 of the H-shaped steel 223, respectively. The stainless steel flat plates 228 and 229, and the sandwiching plates 209 and 210 between the pair of sandwiching plates 209 and 210, respectively, are interposed between the stainless steel flat plates 228 and 229, respectively. The plate-like friction members 230 and 231 fixed to the holding plates 209 and 210 with respect to the relative movement in the displacement direction Y of the H-shaped steel 223 with respect to the base 203, and the friction members 230 and 231 are made of a stainless steel flat plate 228 And 229, the pair of clamping plates 209 and 210, and the friction member 230. It is provided with a plate-like deformable members 234 and 235 are interposed between the respective beauty 231.

  In addition to the H-shaped steel 202, the base 203 is welded to one end surface of the H-shaped steel 202 and fixed to the one end surface of the H-shaped steel 202, and is fixed to the plate 241 with bolts 242. A reinforcing plate 243 and a fixture 244 welded to the reinforcing plate 243 and fixed to the reinforcing plate 243 are provided, and the fixture 244 for attaching the base body 203 to the lower beam 38 in the same manner as the fixture 28 is provided. The base body 203 can be rotatably attached to the lower beam 38 via the shaft member 40 inserted into the through hole 245 of the fixture 244. ing.

  In addition to the flange portions 204 and 205, the H-shaped steel 202 integrally includes a central portion 251 that bridges the central portions of the flange portions 204 and 205 together with the flange portions 204 and 205. Each of the flange portions 204 and 205 includes one outer surface 252 and the other outer surface 253 facing the outer surface 252, and each of the outer surfaces 253 is a pair of portions separated by the central portion 251. Each of the outer surfaces 252 is provided with a spacer plate 256 in contact with the outer surface 252, and each of the divided outer surfaces 254 is in contact with the divided outer surface 254. Spacer plate pieces 257 are arranged, and spacer plate pieces 258 are arranged on each of the divided outer surfaces 255 in contact with the divided outer surface 255.

  A rectangular plate body 261 is fixed to one end surface of the H-shaped steel 223 by welding. A reinforcing plate 263 is fixed to the plate body 261 by bolts 262, and a fixture 264 is attached to the reinforcing plate 263 by welding. Like the fixture 91, the fixture 264 for attaching the H-shaped steel 223 to the upper beam 92 has a through hole 265 for shaft insertion. One end of the H-shaped steel 223 is attached to the fixture 264. It can be rotatably attached to the upper beam 92 through a shaft member 93 inserted through the through hole 265.

  In addition to the flange portions 221 and 222, the H-shaped steel 223 includes a central portion 271 that bridges the central portions of the flange portions 221 and 222 together with the flange portions 221 and 222. Each has a pair of long holes 272 and 273 extending in the displacement direction Y. Each of the outer surfaces 227 facing each of the outer surfaces 226 includes a pair of divided outer surfaces 274 and 275 divided by the central portion 271.

  The flange portion 205 side of the H-shaped steel 202 and the flange portion 222 side of the H-shaped steel 223 are configured in the same manner as the flange portion 204 side of the H-shaped steel 202 and the flange portion 221 side of the H-shaped steel 223. The flange portion 204 side and the flange portion 221 side of the H-shaped steel 223 will be described in detail.

  One clamping plate 209 of the pair of long clamping plates 209 and 210 extends in the displacement direction Y with substantially the same width as the flange portions 204 and 221, and the other clamping plate 210 extends in the displacement direction Y. The holding plate 209 and the holding plate pieces 281 and 282 have a thickness at the other end 280. The holding plate 209 and the holding plate pieces 281 and 282 have a thickness at the other end 280. One of the stainless steel flat plates 228 and 229 has the same width as the clamping plate 209 and has a displacement direction Y from one end surface to the other end surface of the H-shaped steel 223. And a pair of long holes 283 and 284 extending in the displacement direction Y corresponding to the pair of long holes 272 and 273, and the other stainless steel The teal flat plate 229 extends in the displacement direction Y from one end surface to the other end surface of the H-shaped steel 223, is the same length as the stainless steel flat plate 228, and is narrower than the stainless steel flat plate 228, and A pair of stainless steel plate pieces 287 and 288 having the same width as the pair of sandwiching plate pieces 281 and 282 and corresponding to the pair of long holes 272 and 273, respectively, One friction member 230 of 231 has the same width and the same length as the sandwiching plate 209 and extends long in the displacement direction Y, and the other friction member 231 has the same length as the sandwiching plate 209 and in the displacement direction Y. A pair of friction member pieces 289 and 2 that are long and narrower than the friction member 230 and have the same width as the pair of sandwich plate pieces 281 and 282. 0, one of the deformable members 234 and 235 has the same width and the same length as the holding plate 209 and extends in the displacement direction Y, and the other deformable member 235 has the same length. From a pair of variable shape member pieces 291 and 292 having the same length as the holding plate 209 and extending in the displacement direction Y and narrower than the variable shape member 234 and the same width as the pair of holding plate pieces 281 and 282 Become.

  As shown in FIG. 7, each of the friction member 230 and the friction member pieces 289 and 290 has a metal sheet on one surface of an expanded metal having a large number of meshes 61 or a metal sheet 62 (mesh metal sheet). After forming the sliding layer 63 made of polyimide resin, tetrafluoroethylene resin or a mixture thereof so as to fill the mesh 61, a metal sheet having the sliding layer 63 formed on one side is long. The friction member 230 is a slip that is a synthetic resin surface of the sliding layer 63 containing at least one of polyimide resin and tetrafluoroethylene resin. The surface of the friction member piece 289 is slidably in contact with the stainless steel flat plate 228 and its displacement direction Y. And a sliding surface which is a synthetic resin surface of the sliding layer 63 containing at least one of ethylene tetrafluoride resin so as to slidably contact the stainless steel flat plate piece 287 in the displacement direction Y. The friction member piece 290 is a sliding surface which is a synthetic resin surface of the sliding layer 63 containing at least one of polyimide resin and ethylene tetrafluoride resin, and a flat plate piece 288 made of stainless steel. It is arranged so as to be slidably in contact with the displacement direction Y, and thus fills the metal sheet which is the base material of the net-like body arranged on one outer surface side in the thickness direction and the mesh of this metal sheet. In the friction member 230 and the friction member pieces 289 and 290 provided with the sliding layer 63 made of synthetic resin formed on one surface of the metal sheet, the friction member 23 The sliding layer 63 is disposed on the other outer surface side in the thickness direction of the friction member 230 so that the sliding surface, which is a synthetic resin surface, is slidably in contact with the stainless steel flat plate 228 in the displacement direction Y. In addition, the sliding layer 63 of the friction member piece 289 has a sliding surface which is a surface made of synthetic resin in the thickness direction of the friction member piece 289 so that the sliding surface of the friction member piece 289 is slidably in contact with the flat plate piece 287 made of stainless steel. The sliding layer 63 of the friction member piece 290 is arranged on the other outer surface side so that the sliding surface, which is a surface made of synthetic resin, slidably contacts the stainless steel flat plate piece 288 in the displacement direction Y. The friction member piece 290 is disposed on the other outer surface side in the thickness direction.

  The friction member 230 extends to the flange portion 204 of the H-shaped steel 202 so that the friction member 230 faces the spacer plate 256 at one end, and each of the friction member pieces 289 and 290 also has the spacer plate pieces 257 and 258 at one end. It extends to the flange portion 204 of the H-shaped steel 202 so as to face each other.

  The deformable member 234 and the deformable member pieces 291 and 292 are made of a rubber plate, a copper plate, an aluminum plate or an embossed plate, preferably a rubber plate or an embossed plate that can be somewhat elastically deformed in the thickness direction. 234 is disposed between the sandwiching plate 209 and the friction member 230, the variable member piece 291 is disposed between the sandwiching plate piece 281 and the friction member piece 289, and the variable member member 292 is The sandwiching plate piece 282 and the friction member piece 290 are disposed.

  The deformable member 234 extends to the flange portion 204 of the H-shaped steel 202 so as to be disposed between one end 206 of the holding plate 209 and one end of the friction member 230 at one end thereof, and the deformable member pieces 291 and 292 are also formed. Further, at one end, it extends to the flange portion 204 of the H-shaped steel 202 so as to be disposed between one end of the sandwich plate pieces 281 and 282 and one end of the friction member pieces 289 and 290.

  A plurality of deformable members 234 are overlapped and interposed between the sandwiching plate 209 and the friction member 230, and a plurality of deformable member pieces 291 are overlapped and sandwiched between the sandwiching plate piece 281 and the friction member piece 289. Similarly, a plurality of deformable member pieces 292 may be overlapped and interposed between the sandwiching plate piece 282 and the friction member piece 290.

  The tightening means 232 includes a plurality of bolts that pass through the sandwiching plate 209, the deformable member 234, the friction member 230, the friction member piece 289, the deformable member piece 291 and the sandwiching plate piece 281 and through the long holes 283, 272, and 285. 301, a row of displacement directions Y, a row of nuts 302 screwed to each bolt 301, a clamping plate 209, a deformable member 234, a friction member 230, a friction member piece 290, a deformable member piece 292, and a clamping plate piece 282. And a row of a plurality of bolts 303 passing through the long holes 284, 273, and 286 in the displacement direction Y, and a row of nuts 304 screwed to the bolts 303. The bolts 301 and 303 are turned. By changing the screwed state of the nuts 302 and 304, the distance between the clamping plate 209 and the clamping plate pieces 281 and 282 is reduced, and the friction member 230 is moved. The ten-less steel flat plate 228, so that tightening the friction piece 289 and 290 respectively stainless steel flat plate pieces 287 and 288.

  As the tightening means 232, the nuts 302 and 304 may be omitted, and the bolt 301 may be screwed to the holding plate piece 281 and the bolt 303 may be screwed to the holding plate piece 282.

  One bolt 207 among the plurality of bolts 207 penetrating through the flange portion 204 is the displacement of each of the sandwiching plate 209, the deformable member 234, the friction member 230, the friction member piece 289, the deformable member piece 291 and the sandwiching plate piece 281. One end in the direction Y and the spacer plate 256 and the spacer plate piece 257 pass through, and the other bolt 207 includes the holding plate 209, the variable shape member 234, the friction member 230, the friction member piece 290, the variable shape member piece 292, and the holding portion. The plate piece 282 passes through one end of each displacement direction Y and the spacer plate 256 and the spacer plate piece 258, whereby the deformable member 234, the friction member 230, the friction member piece 289, and the deformable member piece 291. One end of the displacement direction Y, the spacer plate 256 and the spacer plate piece 257 are the holding plate 209, the holding plate piece 281 and the holding plate piece 2. It is secured to the flange portion 204 of the H-section steel 202 with a second displacement direction Y of the end 206.

  In the friction damper 201 described above, when the upper beam 92 is displaced relative to the lower beam 38 in the lateral direction H due to the earthquake, the H-shaped steel 223 moves relative to the base 203 in the displacement direction Y. In the relative movement of the H-shaped steel 223 in the displacement direction Y with respect to the base 203, the friction between the friction member 230 and the stainless steel flat plate 228, the friction between the friction member piece 289 and the stainless steel flat plate piece 287, and the friction member piece 290 The friction with the stainless steel flat plate piece 288 absorbs the relative movement energy, in other words, the relative displacement energy in the lateral direction H of the upper beam 92 with respect to the lower beam 38, and thus the friction with the lower beam 38 is accelerated. The relative displacement in the lateral direction H of the upper beam 92 is reduced.

  According to the friction damper 1, the stainless steel flat plate 228 is attached to the outer surface 226 of the flange portion 221, and the stainless steel flat plate pieces 287 and 288 are respectively attached to the divided outer surfaces 274 and 275 of the flange portion 221. The sliding layer 63 of the friction member 230 is slidably contacted with the stainless steel flat plate 228 in the displacement direction Y, and the sliding layer 63 of the friction member piece 289 is slid with the stainless steel flat plate 287 in the displacement direction Y. Since the sliding layer 63 of the friction member piece 290 is slidably in contact with the stainless steel flat plate piece 288 in the displacement direction Y, the manufactured H-shaped steel is H-shaped steel 2 without grinding or polishing work on the surface (the surface corresponding to the outer surface 226 and the divided outer surfaces 274 and 275) The surface of the stainless steel flat plate 228 and the stainless steel flat plate pieces 287 and 288, and the friction member 230 and the friction member pieces 289 and 290 having smoothness can be slid freely. As a result of the contact, the wear of each sliding layer 63 can be reduced as much as possible, and in addition, the mating material with which each sliding layer 63 is slidably contacted does not generate rust, and the stainless steel flat plate piece. Because of 287 and 288, even if rust is generated on the outer surface 226 of the flange portion 221 and the split outer surfaces 274 and 275, it can be prevented from being affected by such rust, and thus stable attenuation over a long period of time. In addition to obtaining characteristics, the same effects as the friction damper 1 can be obtained.

  In order to prevent the stainless steel flat plate 228 and the stainless steel flat plate pieces 287 and 288 from rolling up or drooping on the plate body 261 side, the stainless steel flat plate 228 and the stainless steel flat plate piece 287 on the plate body 261 side. And 288 may be fixed to the flange portion 221 or the plate body 261 using a bolt, an adhesive, or the like, and between the holding plate 209 and the deformable member 234, the deformable member 234 and the friction member 230. Between the sandwiching plate pieces 281 and 282 and the deformable member pieces 291 and 292, and between the deformable member pieces 291 and 292 and the friction member pieces 289 and 290, respectively. In addition to the bolt 303, the sandwiching plate 20 of the deformable member 234 and the friction member 230 is also obtained by the adhesive action of the adhesive. Position fixing to, may be firmly fixed position to each of the deformable piece 291 and 292 and the friction piece 289 and 290 of the respective holding plates pieces 281 and 282.

It is front sectional drawing of the preferable example of embodiment of this invention. It is the II-II arrow directional cross-sectional view of the example shown in FIG. It is a cross-sectional explanatory drawing of the support body of the example shown in FIG. It is a perspective view of the friction member of the example shown in FIG. It is a perspective view of the cylindrical body made from a stainless steel plate of the example shown in FIG. It is the bottom view which fractured | ruptured a part of example shown in FIG. It is explanatory drawing of the friction member of the example shown in FIG. It is explanatory drawing of the example used for the detached house in the example shown in FIG. It is sectional explanatory drawing using the other example of the support body in the example shown in FIG. FIG. 10 is a cross-sectional explanatory view of another example of the support shown in FIG. 9. It is sectional drawing of another preferable example of embodiment of this invention. It is a perspective view of the deformable member shown in FIG. It is sectional drawing of another preferable example of embodiment of this invention. FIG. 14 is a perspective view of the friction member and the deformable member shown in FIG. 13. It is XV-XV arrow directional cross-sectional view shown in FIG. 16 of another preferable example of embodiment of this invention. FIG. 16 is a cross-sectional view taken along line XVI-XVI shown in FIG. 15. FIG. 17 is a cross-sectional view taken along line XVII-XVII shown in FIG. 16. It is XVIII-XVIII sectional view taken on the line shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Friction damper 2 Base | substrate 3 Through-hole 4, 5, 6 Support body 7 Rod 8 Cylindrical part 9, 10, 11 Friction member 16 Stainless steel plate cylindrical body

Claims (34)

  A base that can be attached to one of a pair of members that are displaced relative to each other; a support that is fixed to the base and has a through-hole; and a through-hole of the support A rod extending through the hole and axially movable with respect to the support and adapted to be attached to the other of the pair of members; and an outer surface of the rod A cylindrical body made of stainless steel plate, and a cylindrical portion interposed between the support body and the cylindrical body made of stainless steel plate in the through-hole of the support body, and relative to the base body in the axial direction of the rod A friction member fixed immovably with respect to the movement, and the cylindrical portion of the friction member has a cylindrical surface made of stainless steel plate and a sliding surface made of a synthetic resin that is slidably contacted in the axial direction thereof. Have Friction damper.   It further comprises tightening means for tightening the cylindrical portion of the friction member to the cylindrical body made of stainless steel plate, and the through hole of the support body and the cylindrical portion of the friction member can be freely reduced in diameter, and the tightening means is a through hole of the support body. The friction damper according to claim 1, wherein the diameter of the cylindrical portion of the friction member is reduced via the reduced diameter of the friction member, and the cylindrical portion is fastened to the cylindrical body made of stainless steel plate.   The friction damper according to claim 2, wherein the support has a slit communicating with the through-hole and can be reduced in diameter.   The friction damper according to claim 3, wherein the tightening means includes a bolt screwed to the support so that the width of the slit can be reduced.   The friction damper according to claim 2, wherein the support is divided into two parts and can be reduced in diameter.   6. The friction damper according to claim 5, wherein the tightening means includes a bolt screwed to the support so that the width of the gap between the two divided bodies can be reduced.   The friction damper according to any one of claims 2 to 6, wherein the cylindrical portion of the friction member has a slit extending from one end surface thereof to the other end surface in the axial direction so that the diameter thereof can be freely reduced.   The friction damper according to any one of claims 2 to 6, wherein the cylindrical portion of the friction member is divided into two parts and can be reduced in diameter.   In addition to the cylindrical portion, the friction member includes a flange portion integrally formed with the cylindrical portion, and is fixed to the flange portion so as not to move relative to the base in the axial direction of the rod. The friction damper according to any one of claims 2 to 8.   The friction damper according to any one of claims 2 to 9, further comprising a plurality of support bodies arranged in the axial direction, each of which includes a fastening means and a friction member.   A plurality of supports arranged in the axial direction are provided, and each support is provided with a fastening means and a friction member. Each friction member is integrally formed with the cylindrical portion in addition to the cylindrical portion. 9. The device according to claim 2, further comprising a flange that is fixed to an axially relative movement of the rod with respect to the base body sandwiched between adjacent supports in the flange. The friction damper according to one item.   The base is a cylinder, one lid having a through-hole through which a cylindrical body made of a stainless steel plate fixed to one end of the cylinder and attached to the outer surface of the rod passes, and the cylinder And the other lid body to which a fixture for attaching to one member is attached, and the support body is fixed to the inner peripheral surface of the cylindrical body. The friction damper according to any one of 1 to 11.   The friction damper according to any one of claims 1 to 12, further comprising at least one deformable member interposed between the support and the cylindrical portion of the friction member.   The friction damper according to claim 13, wherein the deformable member has a slit and can be reduced in diameter.   The friction damper according to claim 13, wherein the deformable member is divided into two parts so that the diameter of the deformable member can be freely reduced.   The friction damper according to any one of claims 13 to 15, wherein the deformable member is made of a rubber plate, a copper plate, an aluminum plate, or an embossed plate.   The friction damper according to any one of claims 13 to 16, wherein a plurality of deformable members are interposed between the support and the cylindrical portion of the friction member.   The friction damper according to any one of claims 1 to 17, wherein the rod is made of a solid or hollow member.   The friction damper according to any one of claims 1 to 18, wherein the stainless steel plate cylinder includes at least a pair of stainless steel plate half cylinders.   The cylindrical portion of the friction member includes a base material of a net-like body arranged on the outer peripheral surface side in the radial direction, and a synthetic resin sliding layer formed on one surface of the base material while filling the mesh of the base material. The sliding layer is arranged on the inner peripheral surface side in the radial direction of the cylindrical portion so as to slidably contact the cylindrical body made of stainless steel plate and the axial direction thereof. The friction damper according to any one of the above.   A base that can be attached to one of a pair of members that are displaced relative to each other, and a pair of clamping plates that are fixed to the base at one end and arranged opposite to each other; And a flange portion extending between the pair of sandwiching plates and movable in a displacement direction based on relative displacement of the pair of members with respect to the pair of sandwiching plates, and the other of the pair of members A long H-shaped member adapted to be attached to the member, a stainless steel flat plate attached to each of a pair of opposed outer surfaces of the flange portion of the H-shaped member, and a pair of A plate-like friction member that is interposed between the holding plate and the stainless steel flat plate between the holding plates, and is fixed to the relative movement in the displacement direction of the H-shaped member with respect to the base. Cage, the friction member, the friction damper has a sliding surface made of synthetic resin which slidably contacts the displacement direction and stainless steel plates.   A clamping means for clamping the friction member to the stainless steel flat plate is further provided, and the pair of clamping plates are free ends in the thickness direction at the other end, and the clamping means narrows the distance between the pair of clamping plates. The friction damper according to claim 21, wherein the friction member is fastened to a flat plate made of stainless steel.   The tightening means includes a combination of a bolt penetrating the pair of sandwiching plates and a nut screwed to the bolt so that the interval between the pair of sandwiching plates can be reduced, or one of the pair of sandwiching plates. 23. The friction damper according to claim 22, further comprising a bolt that penetrates and is screwed into the other of the pair of clamping plates.   The friction damper according to claim 23, wherein the flange portion has a long hole extending in the displacement direction, and the bolt passes through the long hole of the flange portion.   The friction damper according to any one of claims 21 to 24, wherein the base body includes another H-shaped member, and the pair of clamping plates are fixed to a flange portion of the other H-shaped member at one end. .   The friction damper according to any one of claims 21 to 25, further comprising at least one deformable member interposed between the sandwiching plate and the friction member.   27. The friction damper according to claim 26, wherein the deformable member comprises a rubber plate, a copper plate, an aluminum plate, or an embossed plate.   The friction damper according to any one of claims 21 to 27, wherein a plurality of deformable members are interposed between the sandwiching plate and the friction member.   The friction damper according to any one of claims 21 to 28, wherein the long H-shaped member is made of H-shaped steel.   The friction member includes a base material of a net-like body disposed on one outer surface side in the thickness direction, a sliding layer made of a synthetic resin that fills the mesh of the base material and is formed on one surface of the base material. The sliding layer is arranged on the other outer surface side in the thickness direction of the friction member so as to be slidably contacted with the stainless steel flat plate in the displacement direction. The friction damper according to item.   The friction damper according to claim 20 or 30, wherein the substrate is made of expanded metal or wire mesh.   The friction damper according to any one of claims 20, 30, and 31, wherein the sliding layer includes a polyimide resin.   The friction damper according to any one of claims 20 and 30 to 32, wherein the sliding layer contains a tetrafluoroethylene resin.   A friction member for use in the friction damper according to any one of claims 1 to 33.

Images