JP6675636B2 - Seismic isolation mechanism - Google Patents

Seismic isolation mechanism Download PDF

Info

Publication number
JP6675636B2
JP6675636B2 JP2016015622A JP2016015622A JP6675636B2 JP 6675636 B2 JP6675636 B2 JP 6675636B2 JP 2016015622 A JP2016015622 A JP 2016015622A JP 2016015622 A JP2016015622 A JP 2016015622A JP 6675636 B2 JP6675636 B2 JP 6675636B2
Authority
JP
Japan
Prior art keywords
contact member
inclined surface
contact
horizontal direction
guide member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2016015622A
Other languages
Japanese (ja)
Other versions
JP2017133650A (en
Inventor
銘崇 劉
銘崇 劉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimizu Corp
Original Assignee
Shimizu Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shimizu Corp filed Critical Shimizu Corp
Priority to JP2016015622A priority Critical patent/JP6675636B2/en
Publication of JP2017133650A publication Critical patent/JP2017133650A/en
Application granted granted Critical
Publication of JP6675636B2 publication Critical patent/JP6675636B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Description

本発明は、建物や精密機器等の免震対象を支持するための免震機構に関する。   The present invention relates to a seismic isolation mechanism for supporting a seismic isolation target such as a building or precision equipment.

従来、建物や精密機器等の地震被害を防止（抑止）するための免震機構が知られている。例えば、特許文献１には、免震対象となる上部構造体の底部に固定された上部案内部材と、下部構造体の上部に固定された下部案内部材との間に摺動子となる可動子を介装した免震機構が開示されている。この免震機構では、可動子と上部案内部材との摺動面が一の水平方向に沿って逆Ｖ字型状となる傾斜面に形成され、可動子と下部案内部材との摺動面が一の水平方向に直交する他の水平方向に沿ってＶ字状となる傾斜面に形成されている。可動子が傾斜面に沿って移動することにより、地震が生じた際の加速度の低減、振動の減衰、および変位の回復を図ることができる。   BACKGROUND ART Conventionally, seismic isolation mechanisms for preventing (suppressing) earthquake damage to buildings, precision equipment, and the like have been known. For example, Patent Literature 1 discloses a mover serving as a slider between an upper guide member fixed to the bottom of an upper structure to be subjected to seismic isolation and a lower guide member fixed to an upper portion of the lower structure. Is disclosed. In this seismic isolation mechanism, the sliding surface between the mover and the upper guide member is formed as an inverted V-shaped inclined surface along one horizontal direction, and the sliding surface between the mover and the lower guide member is formed. It is formed in a V-shaped inclined surface along another horizontal direction orthogonal to one horizontal direction. By moving the mover along the inclined surface, it is possible to reduce acceleration, dampen vibration, and recover displacement when an earthquake occurs.

特開２０１３−１３０２１６号公報JP 2013-130216 A

しかしながら、可動子が上部案内部材および下部案内部材と繋がれていないため、鉛直方向の地震動が１Ｇを超えると、可動子、上部案内部材、および下部案内部材がそれぞれ飛び上がり再び着地した際に可動子が上部案内部材および下部案内部材と位置ずれして外れてしまう虞がある。
また、可動子、上部案内部材および下部案内部材を初期状態の位置に設置する場合、これらをそれぞれ上下方向に外れないように仮留めし、初期状態の位置に設置した後に仮留めを外す必要があり、手間がかかるという問題がある。 However, since the mover is not connected to the upper guide member and the lower guide member, when the vertical seismic motion exceeds 1 G, the mover, the upper guide member, and the lower guide member jump up and move again when the mover, the upper guide member, and the lower guide member land again. May be displaced from the upper guide member and the lower guide member and come off.
In addition, when the mover, upper guide member and lower guide member are installed in the initial position, they need to be temporarily fastened so that they do not come off in the vertical direction, and then temporarily installed and then removed. There is a problem that it takes time and effort.

また、地震による応答変位が想定を超えた場合、上部案内部材および下部案内部材に対して可動子が大きく移動してしまい可動子が上部案内部材および下部案内部材から水平方向に外れてしまう虞がある。また、長時間にわたる風などによる一方向からの外力によって、可動子が上部案内部材および下部案内部材から水平方向に外れてしまう虞がある。   Further, when the response displacement due to the earthquake exceeds the assumption, there is a possibility that the mover may move largely with respect to the upper guide member and the lower guide member, and the mover may come off the upper guide member and the lower guide member in the horizontal direction. is there. Further, there is a possibility that the mover may be disengaged in the horizontal direction from the upper guide member and the lower guide member due to an external force from one direction due to a long-time wind or the like.

そこで、本発明は、可動子が上部案内部材および下部案内部材から外れることを防止することができる免震機構を提供することを目的とする。   Therefore, an object of the present invention is to provide a seismic isolation mechanism that can prevent a mover from being detached from an upper guide member and a lower guide member.

上記目的を達成するため、本発明に係る免震機構は、水平方向に相対変位可能な上部構造体と下部構造体との間に設けられる免震機構において、前記上部構造体の底部に固定される上部案内部材と、前記下部構造体の上部に固定される下部案内部材と、前記上部案内部材および前記下部案内部材との間に介装され、前記上部案内部材と一の水平方向に相対変位可能であるとともに、前記下部案内部材と前記一の水平方向に直交する他の水平方向に相対変位可能な可動子と、を有し、前記上部案内部材は、前記可動子が当接する上部当接面を有するとともに、前記一の水平方向に延在し下側に開口する上側溝部が形成され、前記上部当接面は、前記一の水平方向に沿って上側に凸となる逆Ｖ字型状に傾斜していて、前記下部案内部材は、前記可動子が当接する下部当接面を有するとともに、前記他の水平方向に延在し上側に開口する下側溝部が形成され、前記下部当接面は、前記他の水平方向に沿って下側に凸となるＶ字型状に傾斜していて、前記可動子は、本体部と、該本体部に固定されて前記上部当接面に当接した状態で該上部当接面に沿って移動可能な上部当接部材と、前記本体部に固定されて前記下部当接面に当接した状態で該下部当接面に沿って移動可能な下部当接部材と、前記本体部から上側に突出し前記上側溝部に挿入された上側突出部と、前記本体部から下側に突出し前記下側溝部に挿入された下側突出部と、を有し、前記上側溝部の内部は、上側の上側領域が該上側領域の下側の下側領域よりも前記他の水平方向の寸法が大きく形成され、前記上側突出部は、上側の上側部分が該上側部分よりも下側の下側部分よりも前記他の水平方向の寸法が大きく形成され、前記上側溝部に挿入されると上側部分が前記上側溝部の内部の上側領域に配置され、下側部分が前記上側溝部の内部の下側領域に配置され、前記上側突出部の上側部分は、前記上側溝部の内部の下側の領域よりも前記他の水平方向の寸法が大きく、前記下側溝部の内部は、下側の下側領域が該下側領域よりも上側の上側領域よりも前記一の水平方向の寸法が大きく形成され、前記下側突出部は、下側の下側部分が該下側部分よりも上側の上側部分よりも前記一の水平方向の寸法が大きく形成され、前記下側溝部に挿入されると下側部分が前記下側溝部の内部の下側領域に配置され、上側部分が前記下側溝部の内部の上側領域に配置され、前記下側突出部の下側部分は、前記下側溝部の内部の上側の領域よりも前記一の水平方向の寸法が大きく形成され、前記上部当接面は、前記一の水平方向の中央部となる上側中央部から前記一の水平方向の一方側に配置され、前記上側中央部から前記一の水平方向の一方側に向かうに従って漸次下側に向かう平面に形成された第１上部傾斜面と、前記上側中央部から前記一の水平方向の他方側に配置され、前記上側中央部から前記一の水平方向の他方側に向かうに従って漸次下側に向かう平面に形成された第２上部傾斜面と、を有し、前記上側溝部の内部には、前記第１上部傾斜面よりも前記一の水平方向の一方側に配置され、前記一の水平方向の一方側に向かうに従って前記第１上部傾斜面よりも大きな勾配で漸次下側に向かう平面状の第３上部傾斜面と、前記第２上部傾斜面よりも前記一の水平方向の他方側に配置され、前記一の水平方向の他方側に向かうに従って前記第２上部傾斜面よりも大きな勾配で漸次下側に向かう平面状の第４上部傾斜面と、が形成され、前記下部当接面は、前記他の水平方向の中央部となる下側中央部から前記他の水平方向の一方側に配置され、前記下側中央部から前記他の水平方向の一方側に向かうに従って漸次上側に向かう平面に形成された第１下部傾斜面と、前記下側中央部から前記他の水平方向の他方側に配置され、前記下側中央部から前記他の水平方向の他方側に向かうに従って漸次上側に向かう平面に形成された第２下部傾斜面と、を有し、前記下側溝部の内部には、前記第１下部傾斜面よりも前記他の水平方向の一方側に配置され、前記他の水平方向の一方側に向かうに従って前記第１下部傾斜面よりも大きい勾配で漸次上側に向かう平面状の第３下部傾斜面と、前記第２下部傾斜面よりも前記他の水平方向の他方側に配置され、前記他の水平方向の他方側に向かうに従って前記第２下部傾斜面よりも大きい勾配で漸次上側に向かう平面状の第４下部傾斜面と、を有し、前記上部当接部材は、前記第１上部傾斜面と当接可能な第１上部当接部材と、前記第２上部傾斜面と当接可能な第２上部当接部材と、を有し、前記上側突出部は、前記第３上部傾斜面と当接可能な第３上部当接部材と、前記第４上部傾斜面と当接可能な第４上部当接部材と、を有し、前記下部当接部材は、前記第１下部傾斜面と当接可能な第１下部当接部材と、前記第２下部傾斜面と当接可能な第２下部当接部材と、を有し、前記下側突出部は、前記第３下部傾斜面と当接可能な第３下部当接部材と、前記第４下部傾斜面と当接可能な第４下部当接部材と、を有し、初期状態では、前記可動子が前記上側中央部の下側に配置されて、前記第１上部当接部材が前記第１上部傾斜面と当接し、前記第２上部当接部材が前記第２上部傾斜面と当接し、前記第３上部当接部材および前記第４上部当接部材が前記上部当接面と離間するとともに、前記可動子が前記下側中央部の上側に配置されて、前記第１下部当接部材が前記第１下部傾斜面と当接し、前記第２下部当接部材が前記第２下部傾斜面と当接し、前記第３下部当接部材および前記第４下部当接部材が前記下部当接面と離間していて、前記初期状態から前記上部案内部材に対して前記一の水平方向の一方側に向かうように前記上部案内部材と相対変位し、前記第１上部当接部材が前記第１上部傾斜面と当接するとともに前記第３上部当接部材が前記第３上部傾斜面と当接するまでの間は、前記第１上部当接部材が前記第１上部傾斜面と当接し、前記第２上部当接部材、前記第３上部当接部材、および前記第４上部当接部材が前記上部当接面と離間し、前記初期状態から前記上部案内部材に対して前記一の水平方向の他方側に向かうように前記上部案内部材と相対変位し、前記第２上部当接部材が前記第２上部傾斜面と当接するとともに前記第４上部当接部材が前記第４上部傾斜面と当接するまでの間は、前記第２上部当接部材が前記第２上部傾斜面と当接し、前記第１上部当接部材、前記第３上部当接部材、および前記第４上部当接部材が前記上部当接面と離間し、前記第１上部当接部材が前記第１上部傾斜面と当接するとともに前記第３上部当接部材が前記第３上部傾斜面と当接した状態から、前記上部案内部材に対して前記一の水平方向の一方側に向かうように前記上部案内部材と相対変位すると、前記第３上部当接部材が前記第３上部傾斜面と当接し、前記第１上部当接部材、前記第２上部当接部材、および前記第４上部当接部材が前記上部当接面と離間し、前記第２上部当接部材が前記第２上部傾斜面と当接するとともに前記第４上部当接部材が前記第４上部傾斜面と当接した状態から、前記上部案内部材に対して前記一の水平方向の他方側に向かうように前記上部案内部材と相対変位すると、前記第４上部当接部材が前記第４上部傾斜面と当接し、前記第１上部当接部材、前記第２上部当接部材、および前記第３上部当接部材が前記上部当接面と離間し、前記初期状態から前記下部案内部材に対して前記他の水平方向の一方側に向かうように前記下部案内部材と相対変位し、前記第１下部当接部材が前記第１下部傾斜面と当接するとともに前記第３下部当接部材が前記第３下部傾斜面と当接するまでの間は、前記第１下部当接部材が前記第１下部傾斜面と当接し、前記第２下部当接部材、前記第３下部当接部材、および前記第４下部当接部材が前記下部当接面と離間し、前記初期状態から前記下部案内部材に対して前記他の水平方向の他方側に向かうように前記下部案内部材と相対変位し、前記第２下部当接部材が前記第２下部傾斜面と当接するとともに前記第４下部当接部材が前記第４下部傾斜面と当接するまでの間は、前記第２下部当接部材が前記第２下部傾斜面と当接し、前記第１下部当接部材、前記第３下部当接部材、および前記第４下部当接部材が前記下部当接面と離間し、前記第１下部当接部材が前記第１下部傾斜面と当接するとともに前記第３下部当接部材が前記第３下部傾斜面と当接した状態から、前記下部案内部材に対して前記他の水平方向の一方側に向かうように前記下部案内部材と相対変位すると、前記第３下部当接部材が前記第３下部傾斜面と当接し、前記第１下部当接部材、前記第２下部当接部材、および前記第４下部当接部材が前記下部当接面と離間し、前記第２下部当接部材が前記第２下部傾斜面と当接するとともに前記第４下部当接部材が前記第４下部傾斜面と当接した状態から、前記下部案内部材に対して前記他の水平方向の他方側に向かうように前記下部案内部材と相対変位すると、前記第４下部当接部材が前記第４下部傾斜面と当接し、前記第１下部当接部材、前記第２下部当接部材、および前記第３下部当接部材が前記下部当接面と離間していることを特徴とする。 In order to achieve the above object, a seismic isolation mechanism according to the present invention is a seismic isolation mechanism provided between an upper structure and a lower structure that can be relatively displaced in a horizontal direction, wherein the seismic isolation mechanism is fixed to a bottom of the upper structure. An upper guide member, a lower guide member fixed to an upper portion of the lower structure, and a horizontal displacement relative to the upper guide member, the lower guide member being interposed between the upper guide member and the lower guide member. And a movable element that can be relatively displaced in another horizontal direction orthogonal to the one horizontal direction, wherein the upper guide member has an upper contact with which the movable element contacts. An upper groove extending in the horizontal direction and opening downward is formed, and the upper contact surface is upwardly convex along the horizontal direction. And the lower guide member is A lower contact surface with which the child contacts is formed, and a lower groove portion extending in the other horizontal direction and opening upward is formed, and the lower contact surface is formed on the lower side along the other horizontal direction. The mover is inclined in a convex V-shape, and the movable element is movable along the upper contact surface while being fixed to the main body and in contact with the upper contact surface. An upper contact member, a lower contact member fixed to the main body and movable along the lower contact surface in a state of contacting the lower contact surface; and An upper protruding portion inserted into the upper groove portion, and a lower protruding portion protruding downward from the main body portion and inserted into the lower groove portion, wherein the inside of the upper groove portion is an upper upper region The other horizontal dimension is formed larger than the lower region below the upper region, and the upper protruding portion is The upper portion is formed to have a larger dimension in the other horizontal direction than the lower portion below the upper portion, and when inserted into the upper groove, the upper portion is located in an upper region inside the upper groove. A lower portion is disposed in a lower region inside the upper groove portion, and an upper portion of the upper protruding portion has the other horizontal dimension larger than a lower region inside the upper groove portion. The inside of the lower groove portion is formed such that the lower lower region is larger in the one horizontal direction than the upper region above the lower region, and the lower protruding portion is The lower portion of the side is formed so that the one horizontal dimension is larger than the upper portion above the lower portion, and when the lower portion is inserted into the lower groove, the lower portion is formed inside the lower groove. The lower portion is disposed in the lower region, and the upper portion is disposed in the upper region inside the lower groove portion. The lower portion of the protruding portion is formed to have the one horizontal dimension larger than the upper region inside the lower groove portion, and the upper contact surface is the central portion in the one horizontal direction. A first upper inclined surface which is disposed on the one side in the one horizontal direction from the upper central part, and is formed in a plane gradually descending toward the one side in the one horizontal direction from the upper central part; A second upper inclined surface which is arranged on the other side in the one horizontal direction from the upper central portion, and is formed in a plane gradually going downward from the upper central portion toward the other side in the one horizontal direction; In the inside of the upper groove portion, the first upper inclined surface is disposed on one side in the horizontal direction from the first upper inclined surface, and the first upper inclined surface is located closer to one side in the horizontal direction than the first upper inclined surface. Also has a large slope, and a flat third upward slope that gradually goes down. And the second upper inclined surface are disposed on the other side in the horizontal direction with respect to the second upper inclined surface, and gradually descend downward with a larger gradient than the second upper inclined surface toward the other side in the one horizontal direction. A fourth upper inclined surface having a planar shape, and the lower contact surface is disposed on one side in the other horizontal direction from a lower central portion that is the central portion in the other horizontal direction, and A first lower inclined surface formed in a plane gradually upward from the side central portion toward the one side in the other horizontal direction, and disposed on the other side in the other horizontal direction from the lower central portion, A second lower inclined surface that is formed in a plane that gradually rises upward from the lower central portion toward the other side in the other horizontal direction, and wherein the first lower inclined surface is provided inside the lower groove portion. The other horizontal direction side than the surface, the other A flat third lower inclined surface that gradually goes upward with a gradient greater than the first lower inclined surface as going toward one side in the flat direction, and on the other side in the other horizontal direction than the second lower inclined surface. A fourth lower inclined surface, which is disposed, and gradually goes upward with a gradient larger than the second lower inclined surface as going toward the other side in the other horizontal direction, and the upper contact member has A first upper contact member capable of contacting the first upper inclined surface, and a second upper contact member capable of contacting the second upper inclined surface; A third upper contact member capable of contacting the third upper inclined surface, and a fourth upper contact member capable of contacting the fourth upper inclined surface, wherein the lower contact member includes the first upper contact member. A first lower contact member capable of contacting the lower inclined surface, a second lower contact member capable of contacting the second lower inclined surface, The lower protruding portion has a third lower contact member capable of contacting the third lower inclined surface, a fourth lower contact member capable of contacting the fourth lower inclined surface, In the initial state, the mover is disposed below the upper central portion, the first upper contact member contacts the first upper inclined surface, and the second upper contact member The third upper contact member and the fourth upper contact member are in contact with the second upper inclined surface, are separated from the upper contact surface, and the mover is disposed above the lower central portion. The first lower contact member contacts the first lower inclined surface, the second lower contact member contacts the second lower inclined surface, the third lower contact member and the fourth lower member. The contact member is separated from the lower contact surface, and the one side in the horizontal direction with respect to the upper guide member from the initial state. The upper guide member is relatively displaced toward the first upper contact member until the first upper contact member contacts the first upper inclined surface and the third upper contact member contacts the third upper inclined surface. The first upper contact member contacts the first upper inclined surface, and the second upper contact member, the third upper contact member, and the fourth upper contact member include the upper contact surface. And the upper guide member is displaced relative to the upper guide member from the initial state toward the other side in the one horizontal direction with respect to the upper guide member, and the second upper contact member is disposed on the second upper inclined surface. The second upper contact member contacts the second upper inclined surface until the fourth upper contact member contacts the fourth upper inclined surface, and the first upper contact member contacts the fourth upper inclined member. The member, the third upper contact member, and the fourth upper contact member are The first upper contact member is separated from the contact surface, the first upper contact member contacts the first upper inclined surface, and the third upper contact member contacts the third upper inclined surface. When the upper guide member is relatively displaced toward the one side in the one horizontal direction with respect to the third upper contact member, the third upper contact member contacts the third upper inclined surface, and the first upper contact member, The second upper contact member and the fourth upper contact member are separated from the upper contact surface, and the second upper contact member contacts the second upper inclined surface and the fourth upper contact member. When the member is displaced relative to the upper guide member from the state in which the member is in contact with the fourth upper inclined surface toward the other side in the one horizontal direction with respect to the upper guide member, the fourth upper contact member Is in contact with the fourth upper inclined surface, and the first upper contact member, The second upper contact member and the third upper contact member are separated from the upper contact surface, and the lower portion is moved from the initial state toward the lower guide member toward one side in the other horizontal direction. The first lower contact member is relatively displaced with the guide member, and the first lower contact member contacts the first lower inclined surface, and the first lower contact member contacts the third lower inclined surface. A lower contact member that contacts the first lower inclined surface, the second lower contact member, the third lower contact member, and the fourth lower contact member separate from the lower contact surface; The lower guide member is relatively displaced from the initial state toward the other side in the other horizontal direction with respect to the lower guide member, and the second lower contact member contacts the second lower inclined surface, and Until the fourth lower contact member contacts the fourth lower inclined surface. The second lower contact member contacts the second lower inclined surface, and the first lower contact member, the third lower contact member, and the fourth lower contact member are connected to the lower contact surface. From the state where the first lower contact member is in contact with the first lower inclined surface and the third lower contact member is in contact with the third lower inclined surface. When the lower guide member is relatively displaced toward one side in the other horizontal direction, the third lower contact member contacts the third lower inclined surface, and the first lower contact member, the second lower contact member, and the second lower contact member. The lower contact member and the fourth lower contact member are separated from the lower contact surface, the second lower contact member contacts the second lower inclined surface, and the fourth lower contact member is From the state of contact with the fourth lower inclined surface, the other horizontal When the lower guide member is relatively displaced toward the other side, the fourth lower contact member comes into contact with the fourth lower inclined surface, and the first lower contact member, the second lower contact member , And the third lower contact member is separated from the lower contact surface .

本発明では、上側突出部の上側部分が上側溝部の内部における下側領域よりも他の水平方向の寸法が大きく形成されていることにより、上側突出部の上側部分が上側溝部の内部における下側領域に入り込むことができず、上側領域と下側領域との境界部分に引っ掛かるため、上側突出部が上側溝部から下側へ外れることを防止することができる。これにより、可動子が上部案内部材から上下方向に外れることを防止できる。
また、下側突出部の下側部分が下側溝部の内部における上側領域よりも一の水平方向の寸法が大きく形成されていることにより、下側突出部の下側部分が下側溝部の内部における上側領域に入り込むことができず、下側領域と上側領域との境界部分に引っ掛かるため、下側突出部が下側溝部から上側へ外れることを防止することができる。これにより、可動子が下部案内部材から上下方向に外れることを防止できる。 In the present invention, the upper portion of the upper protrusion is formed to have a larger horizontal dimension than the lower region inside the upper groove, so that the upper portion of the upper protrusion is inside the upper groove. Since it cannot enter the lower region and is caught at the boundary between the upper region and the lower region, the upper protruding portion can be prevented from coming off from the upper groove portion to the lower side. This can prevent the mover from coming off the upper guide member in the vertical direction.
In addition, the lower portion of the lower protruding portion is formed to have one horizontal dimension larger than the upper region in the lower groove portion, so that the lower portion of the lower protruding portion is formed inside the lower groove portion. In this case, it is impossible to enter into the upper region in FIG. 3 and is caught on the boundary between the lower region and the upper region, so that the lower protruding portion can be prevented from coming off the lower groove portion. This can prevent the mover from coming off the lower guide member in the vertical direction.

第３上部傾斜面の勾配が第１上部傾斜面の勾配よりも大きいことにより、可動子が上部案内部材に対して一の水平方向の一方側に向かうように可動子と上部案内部材とが相対変位した際に、第１上部傾斜面に沿って移動してきた可動子が第３上部傾斜面に沿って移動することで、可動子と上部案内部材との相対変位が減速されるため、可動子が上部案内部材の一の水平方向の一方側に外れることを防止することができる。
第４上部傾斜面の勾配が第２上部傾斜面の勾配よりも大きいことにより、可動子が上部案内部材に対して一の水平方向の他方側に向かうように可動子と上部案内部材とが相対変位した際に、第２上部傾斜面に沿って移動してきた可動子が第４上部傾斜面に沿って移動することで、可動子と上部案内部材との相対変位が減速されるため、可動子が上部案内部材の一の水平方向の他方側に外れることを防止することができる。 Since the gradient of the third upper inclined surface is larger than the gradient of the first upper inclined surface, the movable element and the upper guide member are relatively positioned so that the movable element faces one side in one horizontal direction with respect to the upper guide member. When displaced, the mover that has moved along the first upper inclined surface moves along the third upper inclined surface, so that the relative displacement between the mover and the upper guide member is decelerated. Can be prevented from coming off to one side in the horizontal direction of one of the upper guide members.
Since the inclination of the fourth upper inclined surface is larger than the inclination of the second upper inclined surface, the movable element and the upper guide member are relatively positioned so that the movable element is directed to the other side in one horizontal direction with respect to the upper guide member. When displaced, the mover that has moved along the second upper inclined surface moves along the fourth upper inclined surface, so that the relative displacement between the mover and the upper guide member is reduced. Can be prevented from coming off on the other side in the horizontal direction of one of the upper guide members.

第３下部傾斜面の勾配が第１下部傾斜面の勾配よりも大きいことにより、可動子が下部案内部材に対して他の水平方向の一方側に向かうように可動子と下部案内部材とが相対変位した際に、第１下部傾斜面に沿って移動してきた可動子が第３下部傾斜面に沿って移動することで、可動子と下部案内部材との相対変位が減速されるため、可動子が下部案内部材の他の水平方向の一方側に外れることを防止することができる。
第４下部傾斜面の勾配が第２下部傾斜面の勾配よりも大きいことにより、可動子が下部案内部材に対して他の水平方向の他方側に向かうように可動子と下部案内部材とが相対変位した際に、第２下部傾斜面に沿って移動してきた可動子が第４下部傾斜面に沿って移動することで、可動子と下部案内部材との相対変位が減速されるため、可動子が下部案内部材の他の水平方向の他方側に外れることを防止することができる。 Since the inclination of the third lower inclined surface is larger than the inclination of the first lower inclined surface, the movable element and the lower guide member are relatively moved so that the movable element is directed to one side in the other horizontal direction with respect to the lower guide member. When displaced, the mover that has moved along the first lower inclined surface moves along the third lower inclined surface, so that the relative displacement between the mover and the lower guide member is reduced. Can be prevented from coming off on one side in the other horizontal direction of the lower guide member.
Since the gradient of the fourth lower inclined surface is larger than the gradient of the second lower inclined surface, the movable element and the lower guide member are relatively positioned so that the movable element is directed to the other horizontal side with respect to the lower guide member. When displaced, the mover that has moved along the second lower inclined surface moves along the fourth lower inclined surface, so that the relative displacement between the mover and the lower guide member is reduced. Can be prevented from coming off to the other side in the other horizontal direction of the lower guide member.

本発明によれば、可動子が上部案内部材および下部案内部材から外れることを防止することができる。   According to the present invention, it is possible to prevent the mover from coming off the upper guide member and the lower guide member.

本発明の実施形態による免震機構をＸ方向から見た一例を示す模式図である。It is a mimetic diagram showing an example which looked at the seismic isolation mechanism by an embodiment of the present invention from the X direction. 本発明の実施形態による免震機構をＹ方向から見た一例を示す模式図である。It is a mimetic diagram showing an example which looked at the seismic isolation mechanism by an embodiment of the present invention from the Y direction. 本発明の実施形態による免震機構の一例を示す分解斜視図である。It is an exploded perspective view showing an example of a seismic isolation mechanism by an embodiment of the present invention. 図３のＡ−Ａ線断面図である。FIG. 4 is a sectional view taken along line AA of FIG. 3. 図３のＢ−Ｂ線断面図である。FIG. 4 is a sectional view taken along line BB of FIG. 3. 図３のＣ−Ｃ線断面図である。FIG. 4 is a sectional view taken along line CC of FIG. 3. 図３のＤ−Ｄ線断面図である。FIG. 4 is a sectional view taken along line DD of FIG. 3. 本発明の実施形態による免震機構の平面図である。It is a top view of a base isolation mechanism by an embodiment of the present invention. 可動子が上部当接面の上側中央部と重なる位置に配置された状態の上側溝部および上側突出部の様子を説明する図である。It is a figure explaining a mode of an upper slot part and an upper projection part in the state where a mover was arranged in a position which overlaps with an upper central part of an upper contact surface. 可動子が上側当接面のＸ方向の両端部近傍と重なる位置に配置された状態の上側溝部および上側突出部の様子を説明する図である。It is a figure explaining a mode of an upper slot part and an upper protruding part in a state where a mover was arranged in a position which overlaps with both ends of the direction of an X of an upper contact surface. 可動子が下部当接面の下側中央部と重なる位置に配置された状態の下側溝部および下側突出部の様子を説明する図である。It is a figure explaining a mode of a lower groove part and a lower projection in a state where a mover is arranged in a position which overlaps a lower central part of a lower contact surface. 可動子が下側当接面のＹ方向の両端部近傍と重なる位置に配置された状態の下側溝部および下側突出部の様子を説明する図である。It is a figure explaining a situation of a lower groove part and a lower projection in the state where a mover is arranged in a position which overlaps with the vicinity of both ends of the direction of a Y of a lower contact surface. 可動子が初期状態からＹ方向の一方側に移動した様子、および可動子が初期状態からＹ方向の他方側に移動した様子を説明する図である。It is a figure explaining a mode that a mover moved to one side of a Y direction from an initial state, and a mode that a mover moved to the other side of a Y direction from an initial state. 可動子が図１３の様子からＹ方向の一方側に更に移動した様子、および可動子が図１３の様子からＹ方向の他方側に更に移動した様子を説明する図である。FIG. 14 is a diagram illustrating a state in which the mover further moves from the state in FIG. 13 to one side in the Y direction, and a state in which the mover further moves from the state in FIG. 13 to the other side in the Y direction. 可動子が初期状態からＸ方向の一方側に移動した様子、および可動子が初期状態からＸ方向の他方側に移動した様子を説明する図である。It is a figure explaining a mode that a mover moved to one side of the X direction from an initial state, and a mode that a mover moved to the other side of the X direction from an initial state. 可動子が図１５の様子からＸ方向の一方側に更に移動した様子、および可動子が図１３の様子からＸ方向の他方側に更に移動した様子を説明する図である。FIG. 16 is a diagram illustrating a state in which the mover further moves from the state in FIG. 15 to one side in the X direction, and a state in which the mover further moves from the state in FIG. 13 to the other side in the X direction. 復元力特性（荷重−変形関係）を説明する図である。It is a figure explaining a restoring force characteristic (load-deformation relation). 本発明の実施形態の変形例による上側突出部および上側溝部を説明する図で図９に対応する図である。It is a figure corresponding to FIG. 9 and is a figure explaining the upper side protrusion part and the upper side groove part by the modification of embodiment of this invention. 本発明の実施形態の変形例による上側突出部および上側溝部を説明する図で図１０に対応する図である。It is a figure corresponding to FIG. 10 and is a figure explaining the upper side protrusion part and upper side groove part by the modification of embodiment of this invention. 本発明の実施形態の変形例による下側突出部および下側溝部を説明する図で図１１に対応する図である。FIG. 12 is a view for explaining a lower protrusion and a lower groove according to a modification of the embodiment of the present invention, and is a view corresponding to FIG. 11. 本発明の実施形態の変形例による下側突出部および下側溝部を説明する図で図１２１に対応する図である。FIG. 121 is a diagram illustrating a lower protruding portion and a lower groove portion according to a modification of the embodiment of the present invention and is a diagram corresponding to FIG. 121. 本発明の実施形態の変形例による下部案内部材を示す図である。It is a figure showing a lower guide member by a modification of an embodiment of the present invention.

以下、本発明の実施形態による免震機構について、図１乃至図１７に基づいて説明する。
図１および図２に示すように、本発明の実施形態による免震機構１は、上部構造体１１と下部構造体１２との間の免震層１３に設けられている。下部構造体１２は地盤に支持されている。上部構造体１１と下部構造体１２とは水平方向に相対変位可能に構成されている。なお、免震層１３には複数の免震機構１が設けられているものとする。
図１乃至図３に示すように、免震機構１は、上部構造体１１（図１および図２参照）の底部に固定される上部案内部材２と、上部案内部材２の下側に配置され下部構造体１２（図１および図２参照）の上部に固定される下部案内部材３と、上部案内部材２および下部案内部材３との間に介装される可動子４と、を有している。
上部案内部材２と下部案内部材３とは、水平方向に相対変位可能に構成されていて、鉛直方向の相対変位は水平方向の相対変位により決定される。 Hereinafter, a seismic isolation mechanism according to an embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 2, a seismic isolation mechanism 1 according to an embodiment of the present invention is provided on a seismic isolation layer 13 between an upper structure 11 and a lower structure 12. The lower structure 12 is supported on the ground. The upper structure 11 and the lower structure 12 are configured to be relatively displaceable in the horizontal direction. It is assumed that the seismic isolation layer 13 is provided with a plurality of seismic isolation mechanisms 1.
As shown in FIGS. 1 to 3, the seismic isolation mechanism 1 is disposed on an upper guide member 2 fixed to the bottom of an upper structure 11 (see FIGS. 1 and 2), and is disposed below the upper guide member 2. It has a lower guide member 3 fixed to the upper part of the lower structure 12 (see FIGS. 1 and 2), and a mover 4 interposed between the upper guide member 2 and the lower guide member 3. I have.
The upper guide member 2 and the lower guide member 3 are configured to be relatively displaceable in the horizontal direction, and the relative displacement in the vertical direction is determined by the relative displacement in the horizontal direction.

図１乃至図３に示すように、上部案内部材２は、長尺のブロック状の部材で構成され、長手方向が一の水平方向（Ｘ方向とする）となる向きに配置されている。本実施形態では上部案内部材２は、平板状の固定板部２２を介して上部構造体１１に固定されている。
図２に示すように、上部案内部材２の下面は、Ｘ方向に沿ってＸ方向の略中央部が上側に凸となるように形成されている。この上部案内部材２の下面を上部当接面２１とし、上部当接面２１のＸ方向の略中央部を上側中央部２１ａとする。
図１および図２に示すように、上部案内部材２には、Ｘ方向に直交するＹ方向（他の水平方向）の略中央部に、Ｘ方向全体に延在し下側に開口し上側に窪んだ上側溝部２５が形成されている。 As shown in FIGS. 1 to 3, the upper guide member 2 is formed of a long block-shaped member, and is arranged in a direction in which the longitudinal direction is one horizontal direction (X direction). In the present embodiment, the upper guide member 2 is fixed to the upper structure 11 via a flat fixing plate 22.
As shown in FIG. 2, the lower surface of the upper guide member 2 is formed so that a substantially central portion in the X direction is convex upward along the X direction. The lower surface of the upper guide member 2 is referred to as an upper contact surface 21, and a substantially central portion in the X direction of the upper contact surface 21 is referred to as an upper central portion 21a.
As shown in FIGS. 1 and 2, the upper guide member 2 has a substantially central portion in the Y direction (the other horizontal direction) orthogonal to the X direction, extends in the entire X direction, opens downward, and opens upward. A recessed upper groove 25 is formed.

図２、図４および図５に示すように、上側溝部２５の内部のうちの上側の領域を上側領域２５１とし、この上側領域２５１よりも下側の領域を下側領域２５２とすると、上側溝部２５は、上側領域２５１のＹ方向の寸法が下側領域２５２のＹ方向の寸法よりも大きく設定されている。上側溝部２５は、上側領域２５１と下側領域２５２との境界部分に段部２５３を有していて、断面形状が略Ｔ字型状となるように形成されている。
上側溝部２５の段部２５３は、上部当接面２１と平行となるように延びていて、Ｘ方向に沿ってＸ方向の略中央部が上側に凸となるように形成されている。 As shown in FIGS. 2, 4, and 5, when an upper region of the inside of the upper groove 25 is an upper region 251, and a region below the upper region 251 is a lower region 252, In the side groove 25, the dimension of the upper region 251 in the Y direction is set to be larger than the dimension of the lower region 252 in the Y direction. The upper groove 25 has a step 253 at a boundary between the upper region 251 and the lower region 252, and is formed to have a substantially T-shaped cross section.
The step portion 253 of the upper groove portion 25 extends so as to be parallel to the upper contact surface 21, and is formed such that a substantially central portion in the X direction is convex upward along the X direction.

図２および図３に示すように、上部当接面２１は、上側中央部２１ａからＸ方向の一方側に延びる第１上部傾斜面２１１と、上側中央部２１ａからＸ方向の他方側に延びる第２上部傾斜面２１２と、を有している。
また、上側溝部２５の内部には、第１上部傾斜面２１１のＸ方向の一方側の端部近傍とＸ方向の位置が略同じとなる第３上部傾斜面２１３と、第２上部傾斜面２１２のＸ方向の他方側の端部近傍とＸ方向の位置が略同じとなる第４上部傾斜面２１４と、が形成されている。図２および図５に示すように、第３上部傾斜面２１３および第４上部傾斜面２１４は、上側溝部２５の上側領域２５１に形成されている。 As shown in FIGS. 2 and 3, the upper contact surface 21 has a first upper inclined surface 211 extending from the upper central portion 21a to one side in the X direction, and a second upper inclined surface 211 extending from the upper central portion 21a to the other side in the X direction. 2 upper inclined surface 212.
Further, inside the upper groove portion 25, a third upper inclined surface 213 in which the position in the X direction is substantially the same as the vicinity of one end in the X direction of the first upper inclined surface 211, and a second upper inclined surface A fourth upper inclined surface 214 whose position in the X direction is substantially the same as the vicinity of the other end of the 212 in the X direction is formed. As shown in FIGS. 2 and 5, the third upper inclined surface 213 and the fourth upper inclined surface 214 are formed in the upper region 251 of the upper groove 25.

第１上部傾斜面２１１は、上側中央部２１ａからＸ方向の一方側に向かうに従って漸次下側に向かう平面に形成されている。第１上部傾斜面２１１の水平面に対する傾斜角度はθ１となっている。
第２上部傾斜面２１２は、上側中央部２１ａからＸ方向の他方側に向かうに従って漸次下側に向かう平面に形成されている。第２上部傾斜面２１２の水平面に対する傾斜角度は、第１上部傾斜面２１１の水平面に対する傾斜角度と同じθ１となっている。第１上部傾斜面２１１と第２上部傾斜面２１２とは、上側中央部２１ａにおいて連続している。 The first upper inclined surface 211 is formed as a flat surface that gradually lowers from the upper central portion 21a toward one side in the X direction. Inclination angle relative to the horizontal plane of the first upper slanted surface 211 has a theta 1.
The second upper inclined surface 212 is formed as a plane that gradually lowers from the upper central portion 21a toward the other side in the X direction. Inclination angle relative to the horizontal plane of the second upper slanted surface 212, has the same theta 1 and the inclination angle with respect to the horizontal plane of the first upper slanted surface 211. The first upper inclined surface 211 and the second upper inclined surface 212 are continuous at the upper central portion 21a.

第３上部傾斜面２１３は、Ｘ方向の一方側に向かうに従って漸次下側に向かう平面に形成されている。第３上部傾斜面２１３の水平面に対する傾斜角度は、第１上部傾斜面２１１の水平面に対する傾斜角度θ１よりも大きいθ２となっている。第３上部傾斜面２１３は、第１上部傾斜面２１１よりも上側に配置されている。
第４上部傾斜面２１４は、Ｘ方向の他方側に向かうに従って漸次下側に向かう平面に形成されている。第４上部傾斜面２１４の水平面に対する傾斜角度は、第２上部傾斜面２１２の水平面に対する傾斜角度θ１よりも大きく、かつ第３上部傾斜面２１３の水平面に対する傾斜角度と同じθ２となっている。第４上部傾斜面２１４は、第２上部傾斜面２１２よりも上側に配置されている。
傾斜角度のθ１とθ２とは、θ２＞θ１となっている。
これらの第１〜第４上部傾斜面２１１〜２１４には、それぞれテフロン（登録商標）などの滑り材が設けられている。 The third upper inclined surface 213 is formed as a plane that gradually lowers toward one side in the X direction. Inclination angle relative to the horizontal plane of the third upper slanted surface 213 has a larger theta 2 than the inclination angle theta 1 with respect to the horizontal plane of the first upper slanted surface 211. The third upper inclined surface 213 is disposed above the first upper inclined surface 211.
The fourth upper inclined surface 214 is formed as a plane that gradually lowers toward the other side in the X direction. Inclination angle relative to the horizontal plane of the fourth upper slanted surface 214 is made the same theta 2 and the inclination angle theta greater than 1, and the inclination angle with respect to the horizontal plane of the third upper slanted surface 213 with respect to the horizontal plane of the second upper slanted surface 212 . The fourth upper inclined surface 214 is arranged above the second upper inclined surface 212.
The inclination angles θ 1 and θ 2 satisfy θ 2 > θ 1 .
Each of the first to fourth upper inclined surfaces 211 to 214 is provided with a sliding material such as Teflon (registered trademark).

上部案内部材２には、Ｘ方向の両端部それぞれに上部当接面２１から下側に突出する一対のストッパ２３，２３が形成されている。ストッパ２３，２３は、上部案内部材２と可動子４とが相対変位する際の可動子４の軌道上に配置されていて、可動子４が上部案内部材２からＸ方向に外れることを防止している。
ストッパ２３，２３は、例えば、鋼板や緩衝材機能を有する材料で形成されていて、可動子４がストッパ２３，２３に衝突した場合の衝撃を吸収できるように構成されていてもよい。緩衝材機能を有する材料としては、例えば、弾性体材料、粘性体材料、粘弾性体材料などで、具体的には、防振ゴム、シリコン系粘性体、高減衰ゴムなどが用いられることが好ましい。 The upper guide member 2 is formed with a pair of stoppers 23, 23 projecting downward from the upper contact surface 21 at both ends in the X direction. The stoppers 23, 23 are arranged on the trajectory of the mover 4 when the upper guide member 2 and the mover 4 are relatively displaced, and prevent the mover 4 from coming off the upper guide member 2 in the X direction. ing.
The stoppers 23, 23 may be made of, for example, a steel plate or a material having a cushioning function, and may be configured to be able to absorb an impact when the mover 4 collides with the stoppers 23, 23. As the material having the cushioning function, for example, an elastic material, a viscous material, a viscoelastic material, and the like, specifically, it is preferable to use a vibration-proof rubber, a silicon-based viscous material, a high-damping rubber, and the like. .

図１乃至図３に示すように、下部案内部材３は、上部案内部材２と略同じ長尺のブロック状の部材で構成され、長手方向が平面視においてＹ方向となる向きに配置されている。本実施形態では、下部案内部材３は、平板状の固定板部３２を介して下部構造体１２に固定されている。
図１および図３に示すように、下部案内部材３の上面は、Ｙ方向に沿ってＹ方向の略中央部が下側に凸となるように形成されている。この下部案内部材３の上面を下部当接面３１とし、下部当接面３１のＹ方向の略中央部を下側中央部３１ａとする。
図１乃至図３に示すように、下部案内部材３には、Ｘ方向の略中央部に、Ｙ方向全体に延在し上側に開口し下側に窪んだ下側溝部３５が形成されている。 As shown in FIGS. 1 to 3, the lower guide member 3 is formed of a block-shaped member having a length substantially the same as that of the upper guide member 2, and is arranged so that the longitudinal direction is the Y direction in plan view. . In the present embodiment, the lower guide member 3 is fixed to the lower structure 12 via a flat plate-shaped fixing plate 32.
As shown in FIGS. 1 and 3, the upper surface of the lower guide member 3 is formed so that a substantially central portion in the Y direction is convex downward along the Y direction. The upper surface of the lower guide member 3 is referred to as a lower contact surface 31, and a substantially central portion in the Y direction of the lower contact surface 31 is referred to as a lower central portion 31a.
As shown in FIGS. 1 to 3, the lower guide member 3 is formed with a lower groove 35 extending substantially in the Y direction, opening upward, and depressed downward at a substantially central portion in the X direction. .

図１、図６および図７に示すように、下側溝部３５の内部のうちの下側の領域を下側領域３５１とし、この下側領域３５１よりも上側の領域を上側領域３５２とすると、下側溝部３５は、下側領域３５１のＸ方向の寸法が上側領域３５２のＸ方向の寸法よりも大きく設定されている。下側溝部３５は、下側領域３５１と上側領域３５２との境に段部３５３を有していて、断面形状が略逆Ｔ字型状となるように形成されている。
下側溝部３５の段部３５３は、下部当接面３１と平行となるように延びていて、Ｙ方向に沿ってＹ方向の略中央部が下側に凸となるように形成されている。 As shown in FIGS. 1, 6, and 7, when a lower region of the inside of the lower groove 35 is a lower region 351, and a region above the lower region 351 is an upper region 352, In the lower groove 35, the dimension of the lower region 351 in the X direction is set to be larger than the dimension of the upper region 352 in the X direction. The lower groove portion 35 has a step portion 353 at a boundary between the lower region 351 and the upper region 352, and is formed so as to have a substantially inverted T-shaped cross section.
The step portion 353 of the lower groove portion 35 extends so as to be parallel to the lower contact surface 31, and is formed so that a substantially central portion in the Y direction along the Y direction is convex downward.

図１および図３に示すように、下部当接面３１は、下側中央部３１ａからＹ方向の一方側に延びる第１下部傾斜面３１１と、下側中央部３１ａからＹ方向の他方側に延びる第２下部傾斜面３１２と、を有している。
また、下側溝部３５の内部には、第１下部傾斜面３１１のＹ方向の一方側の端部近傍とＹ方向の位置が略同じとなる第３下部傾斜面３１３と、第２下部傾斜面３１２のＹ方向の他方側の端部近傍とＹ方向の位置が略同じとなる第４下部傾斜面３１４が形成されている。図１および図７に示すように、第３下部傾斜面３１３および第４下部傾斜面３１４は、下側溝部３５の下側領域３５１に形成されている。 As shown in FIGS. 1 and 3, the lower contact surface 31 has a first lower inclined surface 311 extending from the lower central portion 31 a to one side in the Y direction and a lower lower inclined portion 31 a from the lower central portion 31 a to another side in the Y direction. A second lower inclined surface 312 that extends.
Further, inside the lower groove 35, a third lower inclined surface 313 in which the position in the Y direction is substantially the same as the vicinity of one end in the Y direction of the first lower inclined surface 311, and a second lower inclined surface A fourth lower inclined surface 314 is formed in which the position in the Y direction is substantially the same as the vicinity of the other end of the 312 in the Y direction. As shown in FIGS. 1 and 7, the third lower inclined surface 313 and the fourth lower inclined surface 314 are formed in the lower region 351 of the lower groove 35.

第１下部傾斜面３１１は、下側中央部３１ａからＹ方向の一方側に向かうに従って漸次上側に向かう平面に形成されている。第１下部傾斜面３１１の水平面に対する傾斜角度はθ１となっている。
第２下部傾斜面３１２は、下側中央部３１ａからＹ方向の他方側に向かうに従って漸次上側に向かう平面に形成されている。第２下部傾斜面３１２の水平面に対する傾斜角度は、第１下部傾斜面３１１の水平面に対する傾斜角度と同じθ１となっている。第１下部傾斜面３１１第２下部傾斜面３１２とは、下側中央部３１ａにおいて連続している。 The first lower inclined surface 311 is formed as a plane that gradually rises upward from the lower central portion 31a toward one side in the Y direction. Inclination angle relative to the horizontal plane of the first lower slanted surface 311 has a theta 1.
The second lower inclined surface 312 is formed as a plane that gradually rises upward from the lower central portion 31a toward the other side in the Y direction. Inclination angle relative to the horizontal plane of the second lower slanted surface 312, has the same theta 1 and the inclination angle with respect to the horizontal plane of the first lower slanted surface 311. The first lower inclined surface 311 and the second lower inclined surface 312 are continuous at the lower central portion 31a.

第３下部傾斜面３１３は、Ｙ方向の一方側に向かうに従って漸次上側に向かう平面に形成されている。第３下部傾斜面３１３の水平面に対する傾斜角度は、第１下部傾斜面３１１の水平面に対する傾斜角度θ１よりも大きいθ２となっている。第３下部傾斜面３１３は、第１下部傾斜面３１１よりも下側に配置されている。
第４下部傾斜面３１４は、Ｙ方向の他方側に向かうに従って漸次上側に向かう平面に形成されている。第４下部傾斜面３１４の水平面に対する傾斜角度は、第２下部傾斜面３１２の水平面に対する傾斜角度θ１よりも大きく、かつ第３下部傾斜面３１３の水平面に対する傾斜角度と同じθ２となっている。第４下部傾斜面３１４は、第２下部傾斜面３１２よりも下側に配置されている。
傾斜角度のθ１とθ２とは、θ２＞θ１となっている。
これらの第１〜第４下部傾斜面３１１〜３１４には、それぞれテフロン（登録商標）などの滑り材が設けられている。 The third lower inclined surface 313 is formed as a plane that gradually rises upward toward one side in the Y direction. Inclination angle relative to the horizontal plane of the third lower slanted surface 313 has a larger theta 2 than the inclination angle theta 1 with respect to the horizontal plane of the first lower slanted surface 311. The third lower inclined surface 313 is disposed below the first lower inclined surface 311.
The fourth lower inclined surface 314 is formed as a plane that gradually rises upward toward the other side in the Y direction. Inclination angle relative to the horizontal plane of the fourth lower slanted surface 314 is made the same theta 2 and the inclination angle theta greater than 1, and the inclination angle with respect to the horizontal plane of the third lower slanted surface 313 with respect to the horizontal plane of the second lower slanted surface 312 . The fourth lower inclined surface 314 is arranged below the second lower inclined surface 312.
The inclination angles θ 1 and θ 2 satisfy θ 2 > θ 1 .
Each of the first to fourth lower inclined surfaces 311 to 314 is provided with a sliding material such as Teflon (registered trademark).

下部案内部材３には、Ｙ方向の両端部それぞれに下部当接面３１から上側に突出する一対のストッパ３３，３３が形成されている。ストッパ３３，３３は、下部案内部材３と可動子４とが相対変位する際の可動子４の軌道上に配置されていて、可動子４が下部案内部材３から外れることを防止している。
ストッパ３３，３３は、例えば、鋼板や緩衝材機能を有する材料で形成されていて、可動子４がストッパ３３，３３に衝突した場合の衝撃を吸収できるように構成されていてもよい。緩衝材機能を有する材料としては、例えば、弾性体材料、粘性体材料、粘弾性体材料などで、具体的には、防振ゴム、シリコン系粘性体、高減衰ゴムなどが用いられることが好ましい。 The lower guide member 3 is formed with a pair of stoppers 33, 33 projecting upward from the lower contact surface 31 at both ends in the Y direction. The stoppers 33, 33 are arranged on the track of the mover 4 when the lower guide member 3 and the mover 4 are relatively displaced, and prevent the mover 4 from coming off the lower guide member 3.
The stoppers 33, 33 may be made of, for example, a steel plate or a material having a cushioning function, and may be configured to be able to absorb an impact when the mover 4 collides with the stoppers 33, 33. As the material having the cushioning function, for example, an elastic material, a viscous material, a viscoelastic material, and the like, specifically, it is preferable to use a vibration-proof rubber, a silicon-based viscous material, a high-damping rubber, and the like. .

このような上部案内部材２と下部案内部材３とは、上下方向に可動子４が配置される間隔をあけて重なるように配置されている。図８に示すように、上部案内部材２と下部案内部材３とが上下方向に重なる交差部５に可動子４が配置されている。   Such an upper guide member 2 and a lower guide member 3 are arranged so as to overlap with an interval at which the mover 4 is arranged in the vertical direction. As shown in FIG. 8, the mover 4 is disposed at an intersection 5 where the upper guide member 2 and the lower guide member 3 overlap in the vertical direction.

図１乃至図３に示すように、可動子４は、本体部４１と、本体部４１から上側に突出する上側突出部４２と、本体部４１から下側に突出する下側突出部４３と、本体部４１の上部に設けられた第１上部当接部材４４および第２上部当接部材４５と、上側突出部４２の上部に設けられた第３上部当接部材４６および第４上部当接部材４７と、本体部４１の下部に設けられた第１下部当接部材４８および第２下部当接部材４９と、下側突出部４３の下部に設けられた第３下部当接部材５０および第４下部当接部材５１と、を有している。   As shown in FIGS. 1 to 3, the mover 4 includes a main body portion 41, an upper protruding portion 42 protruding upward from the main body portion 41, a lower protruding portion 43 protruding downward from the main body portion 41, A first upper contact member 44 and a second upper contact member 45 provided above the main body 41, and a third upper contact member 46 and a fourth upper contact member provided above the upper protrusion 42. 47, a first lower contact member 48 and a second lower contact member 49 provided below the main body 41, and a third lower contact member 50 and a fourth lower contact member provided below the lower protrusion 43. A lower contact member 51.

上側突出部４２は、本体部４１の上面のＹ方向の略中央部から上方に突出していて、Ｘ方向に延びている。
図９および図１０に示すように、上側突出部４２の先端部側を上側部分４２１とし、基端部側を下側部分４２２とすると、上側突出部４２は、上側部分４２１のＹ方向の寸法が下側部分４２２のＹ方向の寸法よりも大きく設定されている。上側突出部４２は、上側部分４２１と下側部分４２２との境に段部４２３を有していて、断面形状が略Ｔ字型状となるように形成されている。 The upper protruding portion 42 protrudes upward from a substantially central portion of the upper surface of the main body portion 41 in the Y direction, and extends in the X direction.
As shown in FIGS. 9 and 10, when the distal end side of the upper protruding portion 42 is the upper portion 421 and the base end portion is the lower portion 422, the upper protruding portion 42 has a dimension in the Y direction of the upper portion 421. Is set larger than the dimension of the lower portion 422 in the Y direction. The upper protruding portion 42 has a step portion 423 at a boundary between the upper portion 421 and the lower portion 422, and is formed so as to have a substantially T-shaped cross section.

上側突出部４２は、上側溝部２５の内部に挿入されると、上側部分４２１が上側溝部２５の上側領域２５１に配置され、下側部分４２２が上側溝部２５の下側領域２５２に配置される。
上側突出部４２の上側部分４２１のＹ方向の寸法は、上側溝部２５の下側領域２５２のＹ方向の寸法よりも大きくなるように設定されている。このため、上側突出部４２の上側部分４２１は、上側溝部２５の上側領域２５１から下側領域２５２に入り込めないように構成されている。
上側突出部４２の下側部分４２２には、Ｙ方向の両側に上側溝部２５の下側領域２５２の側面と接触した際の摩擦力を小さくするための摩擦材４２４，４２４が設けられている。 When the upper protrusion 42 is inserted into the upper groove 25, the upper portion 421 is disposed in the upper region 251 of the upper groove 25, and the lower portion 422 is disposed in the lower region 252 of the upper groove 25. Is done.
The dimension of the upper portion 421 of the upper protruding portion 42 in the Y direction is set to be larger than the dimension of the lower region 252 of the upper groove 25 in the Y direction. Therefore, the upper portion 421 of the upper protruding portion 42 is configured so as not to enter the lower region 252 from the upper region 251 of the upper groove 25.
The lower portion 422 of the upper protruding portion 42 is provided with friction members 424 and 424 on both sides in the Y direction for reducing a frictional force when the lower portion 422 comes into contact with the side surface of the lower region 252 of the upper groove 25. .

なお、摩擦材４２４，４２４と下側領域２５２の側面との間には、それぞれ所定の間隔ｔ１が設けられていて、通常時には摩擦材４２４，４２４と下側領域２５２の側面とが離間するように構成されている。このため、可動子４は、上部案内部材２に対して鉛直軸回りに回転角可能となる。
この上部案内部材２に対する可動子４の鉛直軸回りの回転角を最小限に抑えるように、摩擦材４２４，４２４と下側領域２５２の側面との間隔ｔ１、および上側溝部２５の下側領域２５２の高さ寸法を設定している。 Between the side surface of the friction material 424, 424 and lower region 252, respectively have a predetermined interval t 1 is provided, in the normal spaced a friction material 424, 424 and the side surface of the lower region 252 is It is configured as follows. For this reason, the mover 4 can be rotated about the vertical axis with respect to the upper guide member 2.
In order to minimize the rotation angle of the mover 4 about the vertical axis with respect to the upper guide member 2, the distance t1 between the friction materials 424, 424 and the side surface of the lower region 252, and the lower region of the upper groove 25 252 height dimensions are set.

上部案内部材２に対する可動子４の鉛直軸回りの回転角を最小限に抑えることにより、摩擦材４２４，４２４の端部への応力集中、摩耗、および潰れが減少し、摩擦材４２４，４２４の劣化を抑制することができる。
また、上部案内部材２に対する可動子４の鉛直軸回りの回転による可動子４と上部案内部材２との摩擦力が小さくなるため、上部構造体１１に生じる加速度を抑えることができる。
また、上部案内部材２に対する可動子４の鉛直軸回りの回転を調整することができるため、回転を考慮した評価を行うことが可能であるとともに、回転角を最小限に抑えて可動子４の挙動を理論値に近づけることができる。 By minimizing the angle of rotation of the mover 4 about the vertical axis with respect to the upper guide member 2, stress concentration, wear, and crushing at the ends of the friction members 424, 424 are reduced, and the friction members 424, 424 Deterioration can be suppressed.
Further, since the frictional force between the mover 4 and the upper guide member 2 due to the rotation of the mover 4 about the vertical axis with respect to the upper guide member 2 is reduced, the acceleration generated in the upper structure 11 can be suppressed.
In addition, since the rotation of the mover 4 about the vertical axis with respect to the upper guide member 2 can be adjusted, it is possible to perform an evaluation in consideration of the rotation, and to minimize the rotation angle of the mover 4. The behavior can be close to the theoretical value.

図１乃至図３に示すように、下側突出部４３は、本体部４１の下面のＸ方向の略中央部から下方に突出していて、Ｙ方向に延びている。
図１１および図１２に示すように、下側突出部４３の先端部側を下側部分４３１とし、基端部側を上側部分４３２とすると、下側突出部４３は、下側部分４３１のＸ方向の寸法が上側部分４３２のＸ方向の寸法よりも大きく設定されている。下側突出部４３は、下側部分４３１と上側部分４３２との境に段部４３３を有していて、断面形状が略逆Ｔ字型状となるように形成されている。 As shown in FIGS. 1 to 3, the lower protruding portion 43 protrudes downward from a substantially central portion of the lower surface of the main body portion 41 in the X direction and extends in the Y direction.
As shown in FIGS. 11 and 12, assuming that the distal end side of the lower protruding portion 43 is a lower portion 431 and the base end side is an upper portion 432, the lower protruding portion 43 has the X of the lower portion 431. The dimension in the direction is set to be larger than the dimension in the X direction of the upper portion 432. The lower protruding portion 43 has a step portion 433 at a boundary between the lower portion 431 and the upper portion 432, and is formed so as to have a substantially inverted T-shaped cross section.

下側突出部４３は、下側溝部３５の内部に挿入されると、下側部分４３１が下側溝部３５の下側領域３５１に配置され、下側部分４２２が下側溝部３５上側領域３５２に配置される。
下側突出部４３の下側部分４３１のＸ方向の寸法は、下側溝部３５の上側領域３５２のＸ方向の寸法よりも大きくなるように設定されている。このため、下側突出部４３の下側部分４３１は、下側溝部３５の下側領域３５１から上側領域３５２に入り込めないように構成されている。
下側突出部４３の上側部分４３２には、Ｘ方向の両側に下側溝部３５の上側領域５３２の側面と接触した際の摩擦力を小さくするための摩擦材４３４，４３４が設けられている。 When the lower protrusion 43 is inserted into the lower groove 35, the lower portion 431 is disposed in the lower region 351 of the lower groove 35, and the lower portion 422 is positioned in the upper region 352 of the lower groove 35. Be placed.
The dimension in the X direction of the lower portion 431 of the lower protrusion 43 is set to be larger than the dimension in the X direction of the upper region 352 of the lower groove 35. For this reason, the lower portion 431 of the lower protruding portion 43 is configured not to enter the upper region 352 from the lower region 351 of the lower groove 35.
The upper portion 432 of the lower protruding portion 43 is provided with friction materials 434 and 434 on both sides in the X direction for reducing a frictional force when the upper protruding portion 43 comes into contact with the side surface of the upper region 532 of the lower groove portion 35.

なお、摩擦材４３４，４３４と上側領域３５２の側面との間には、それぞれ所定の間隔ｔ２が設けられていて、通常時には摩擦材４３４，４３４と上側領域３５２の側面とが離間するように構成されている。このため、可動子４は、下部案内部材３に対して鉛直軸回りに回転角可能となる。
この下部案内部材３に対する鉛直軸回りの可動子４の回転角を最小限に抑えるように、摩擦材４３４，４３４と上側領域３５２の側面との間隔ｔ２、および下側溝部３５の上側領域３５２の高さ寸法を設定している。 Between the side surface of the friction material 434,434 and the upper region 352, respectively have a predetermined interval t 2 is provided, in the normal so as to separate the side surface of the friction material 434,434 and the upper region 352 It is configured. Therefore, the mover 4 can be rotated about the vertical axis with respect to the lower guide member 3.
So as to suppress the rotation angle around the vertical axis of the movable element 4 against the lower guide member 3 to a minimum, the upper region 352 of the friction member 434,434 and spacing t 2 between the side surface of the upper region 352 and lower groove section 35, Height dimension is set.

下部案内部材３に対する鉛直軸回りの可動子４の回転角を最小限に抑えることにより、摩擦材４３４，４３４の端部への応力集中、摩耗、および潰れが減少し、摩擦材４３４，４３４の劣化を抑制することができる。
また、下部案内部材３に対する可動子４の鉛直軸回りの回転による可動子４と下部案内部材３との摩擦力が小さくなるため、下部構造体１２に生じる加速度を抑えることができる。
また、下部案内部材３に対する可動子４の鉛直軸回りの回転を調整することができるため、回転を考慮した評価を行うことが可能であるとともに、回転角を最小限に抑えて可動子４の挙動を理論値に近づけることができる。 By minimizing the rotation angle of the mover 4 about the vertical axis with respect to the lower guide member 3, stress concentration, wear, and crushing at the ends of the friction members 434, 434 are reduced, and the friction members 434, 434 Deterioration can be suppressed.
Further, since the frictional force between the mover 4 and the lower guide member 3 due to the rotation of the mover 4 about the vertical axis with respect to the lower guide member 3 is reduced, the acceleration generated in the lower structure 12 can be suppressed.
In addition, since the rotation of the mover 4 about the vertical axis with respect to the lower guide member 3 can be adjusted, it is possible to perform an evaluation in consideration of the rotation and to minimize the rotation angle of the mover 4. The behavior can be close to the theoretical value.

図２および図３に示すように、第１上部当接部材４４および第２上部当接部材４５は、それぞれ略板状に形成されていて、一方の板面４４ａ，４５ａが上部当接面２１に向いていて、他方の板面が本体部４１に固定されている。この一方の板面４４ａ，４５ａをそれぞれ上面４４ａ，４５ａとする。
第１上部当接部材４４および第２上部当接部材４５は、Ｘ方向の一方側に第１上部当接部材４４、他方側に第２上部当接部材４５となるようにＸ方向に配列されている。第１上部当接部材４４と第２上部当接部材４５とは同じ高さに配置されている。第１上部当接部材４４および第２上部当接部材４５は、それぞれ上側突出部４２のＹ方向の両側に設けられている。 As shown in FIGS. 2 and 3, the first upper contact member 44 and the second upper contact member 45 are each formed in a substantially plate shape, and one of the plate surfaces 44a, 45a is , And the other plate surface is fixed to the main body 41. The one plate surfaces 44a and 45a are referred to as upper surfaces 44a and 45a, respectively.
The first upper contact member 44 and the second upper contact member 45 are arranged in the X direction such that the first upper contact member 44 is on one side in the X direction and the second upper contact member 45 is on the other side. ing. The first upper contact member 44 and the second upper contact member 45 are arranged at the same height. The first upper contact member 44 and the second upper contact member 45 are respectively provided on both sides of the upper protruding portion 42 in the Y direction.

第１上部当接部材４４は、上面４４ａがＸ方向の一方側に向かうに従って漸次下側に向かう平面に形成されている。第１上部当接部材４４の上面４４ａの水平面に対する傾斜角度はθ１となっている。第１上部当接部材４４は、第１上部傾斜面２１１と面接触可能に構成されている。
第２上部当接部材４５は、上面４５ａがＸ方向の他方側に向かうに従って漸次下側に向かう平面に形成されている。第２上部当接部材４５の上面４５ａの水平面に対する傾斜角度は、第１上部当接部材４４の上面４４ａの水平面に対する傾斜角度θ１と同じθ１となっている。第２上部当接部材４５は、第２上部傾斜面２１２と面接触可能に構成されている。 The first upper contact member 44 is formed in a flat surface that gradually lowers as the upper surface 44a moves toward one side in the X direction. Inclination angle relative to the horizontal plane of the upper surface 44a of the first upper contact member 44 has a theta 1. The first upper contact member 44 is configured to be in surface contact with the first upper inclined surface 211.
The second upper contact member 45 is formed in a plane that gradually lowers as the upper surface 45a moves toward the other side in the X direction. Inclination angle relative to the horizontal plane of the upper surface 45a of the second upper contact member 45, has the same theta 1 and the inclination angle theta 1 with respect to the horizontal plane of the upper surface 44a of the first upper contact member 44. The second upper contact member 45 is configured to be in surface contact with the second upper inclined surface 212.

第３上部当接部材４６、第４上部当接部材４７は、それぞれ略板状に形成されていて、一方の板面４６ａ，４７ａが上側溝部２５の底部に向いていて、他方の板面側が上側突出部４２の上面に固定されている。この一方の板面４６ａ，４７ａをそれぞれ上面４６ａ，４７ａとする。
第３上部当接部材４６および第４上部当接部材４７は、Ｘ方向の一方側に第３上部当接部材４６、他方側に第４上部当接部材４７となるようにＸ方向に配列されている。
また、第３上部当接部材４６と第４上部当接部材４７とは同じ高さに配置されていて、第１上部当接部材４４および第２上部当接部材４５よりも上側に配置されている。 The third upper contact member 46 and the fourth upper contact member 47 are each formed in a substantially plate shape, and one plate surface 46a, 47a faces the bottom of the upper groove 25, and the other plate surface. The side is fixed to the upper surface of the upper protrusion 42. The one plate surfaces 46a and 47a are respectively referred to as upper surfaces 46a and 47a.
The third upper contact member 46 and the fourth upper contact member 47 are arranged in the X direction such that the third upper contact member 46 is on one side in the X direction and the fourth upper contact member 47 is on the other side. ing.
Further, the third upper contact member 46 and the fourth upper contact member 47 are disposed at the same height, and are disposed above the first upper contact member 44 and the second upper contact member 45. I have.

第３上部当接部材４６は、上面４６ａがＸ方向の一方側に向かうに従って漸次下側に向かう平面に形成されている。第３上部当接部材４６の上面４６ａの水平面に対する傾斜角度は、第１上部当接部材４４の上面４４ａの水平面に対する傾斜角度θ１よりも大きいθ２となっている。
第４上部当接部材４７は、上面４７ａがＸ方向の他方側に向かうに従って漸次下側に向かう平面に形成されている。第４上部当接部材４７の上面４７ａの水平面に対する傾斜角度は、第２上部当接部材４５の上面４５ａの水平面に対する傾斜角度θ１よりも大きく、第３上部当接部材４６の上面４６ａの水平面に対する傾斜角度と同じθ２となっている。第４上部当接部材４７は、第４上部傾斜面２１４と面接触可能に構成されている。 The third upper contact member 46 is formed in a plane that gradually lowers as the upper surface 46a moves toward one side in the X direction. Inclination angle relative to the horizontal plane of the upper surface 46a of the third upper contact member 46 has a larger theta 2 than the inclination angle theta 1 with respect to the horizontal plane of the upper surface 44a of the first upper contact member 44.
The fourth upper contact member 47 is formed in a plane that gradually lowers as the upper surface 47a moves toward the other side in the X direction. Inclination angle relative to the horizontal plane of the upper surface 47a of the fourth upper contact member 47 is larger than the inclination angle theta 1 with respect to the horizontal plane of the upper surface 45a of the second upper contact member 45, the horizontal plane of the upper surface 46a of the third upper contact member 46 It has the same theta 2 an inclination angle with respect to. The fourth upper contact member 47 is configured to be in surface contact with the fourth upper inclined surface 214.

図１および図３に示すように、第１下部当接部材４８および第２下部当接部材４９は、それぞれ略板状に形成されていて、一方の板面４８ａ，４９ａが下部当接面３１に向いていて、他方の板面側が本体部４１に固定されている。この一方の板面４８ａ，４９ａをそれぞれ下面４８ａ，４９ａとする。
第１下部当接部材４８および第２下部当接部材４９は、Ｙ方向の一方側に第１下部当接部材４８、他方側に第２下部当接部材４９となるようにＹ方向に並んで配置されている。第１下部当接部材４８および第２下部当接部材４９は、それぞれ下側突出部４３のＸ方向の両側に配置されている。
また、第１下部当接部材４８と第２下部当接部材４９とは同じ高さに配置されている。 As shown in FIGS. 1 and 3, the first lower contact member 48 and the second lower contact member 49 are each formed in a substantially plate shape, and one of the plate surfaces 48 a, 49 a has the lower contact surface 31. , And the other plate surface side is fixed to the main body 41. The one plate surfaces 48a and 49a are respectively referred to as lower surfaces 48a and 49a.
The first lower contact member 48 and the second lower contact member 49 are arranged in the Y direction such that the first lower contact member 48 is on one side in the Y direction and the second lower contact member 49 is on the other side. Are located. The first lower contact member 48 and the second lower contact member 49 are respectively disposed on both sides of the lower protruding portion 43 in the X direction.
Further, the first lower contact member 48 and the second lower contact member 49 are arranged at the same height.

第１下部当接部材４８は、下面４８ａがＹ方向の一方側に向かうに従って漸次上側に向かう平面に形成されている。第１下部当接部材４８の下面４８ａの水平面に対する傾斜角度はθ１となっている。第１下部当接部材４８は、第１下部傾斜面３１１と面接触可能に構成されている。
第２下部当接部材４９は、下面４９ａがＹ方向の他方側に向かうに従って漸次上側に向かう平面に形成されている。第２下部当接部材４９の下面４９ａの水平面に対する傾斜角度は、第１下部当接部材４８の下面４８ａの水平面に対する傾斜角度θ１と同じθ１となっている。第２下部当接部材４９は、第２下部傾斜面３１２と面接触可能に構成されている。 The first lower contact member 48 is formed in a plane that gradually rises upward as the lower surface 48a moves toward one side in the Y direction. Inclination angle relative to the horizontal plane of the lower surface 48a of the first lower contact member 48 has a theta 1. The first lower contact member 48 is configured to be in surface contact with the first lower inclined surface 311.
The second lower contact member 49 is formed in a plane that gradually rises upward as the lower surface 49a moves toward the other side in the Y direction. Inclination angle relative to the horizontal plane of the lower surface 49a of the second lower contact member 49, has the same theta 1 and the inclination angle theta 1 with respect to the horizontal plane of the lower surface 48a of the first lower contact member 48. The second lower contact member 49 is configured to be in surface contact with the second lower inclined surface 312.

第３下部当接部材５０および第４下部当接部材５１は、それぞれ略板状に形成されていて、一方の板面５０ａ，５１ａが下側溝部３５の底部に向いていて、他方の板面側が本体部４１に固定されている。この一方の板面５０ａ，５１ａをそれぞれ下面５０ａ，５１ａとする。
第３下部当接部材５０および第４下部当接部材５１は、Ｙ方向の一方側に配列されていて、Ｙ方向の他方側に向かって第３下部当接部材５０、第１下部当接部材４８、第２下部当接部材４９、第４下部当接部材５１の順番に配置されている。
また、第１下部当接部材４８と第２下部当接部材４９とは同じ高さに配置され、第３下部当接部材５０と第４下部当接部材５１とは同じ高さに配置されていて、第１下部当接部材４８および第２下部当接部材４９が第３下部当接部材５０および第４下部当接部材５１よりも下側に配置されている。 The third lower contact member 50 and the fourth lower contact member 51 are each formed in a substantially plate shape, and one plate surface 50a, 51a faces the bottom of the lower groove 35, and the other plate surface. The side is fixed to the main body 41. The plate surfaces 50a and 51a are referred to as lower surfaces 50a and 51a, respectively.
The third lower contact member 50 and the fourth lower contact member 51 are arranged on one side in the Y direction, and the third lower contact member 50 and the first lower contact member are arranged toward the other side in the Y direction. 48, a second lower contact member 49, and a fourth lower contact member 51 are arranged in this order.
Further, the first lower contact member 48 and the second lower contact member 49 are disposed at the same height, and the third lower contact member 50 and the fourth lower contact member 51 are disposed at the same height. Thus, the first lower contact member 48 and the second lower contact member 49 are disposed below the third lower contact member 50 and the fourth lower contact member 51.

第３下部当接部材５０は、下面５０ａがＹ方向の一方側に向かうに従って漸次上側に向かう平面に形成されている。第３下部当接部材５０の下面５０ａの水平面に対する傾斜角度は、第１下部当接部材４８の下面４８ａの水平面に対する傾斜角度θ１よりも大きいθ２となっている。第３下部当接部材５０は、第３下部傾斜面３１３と面接触可能に構成されている。
第４下部当接部材５１は、下面５１ａがＹ方向の他方側に向かうに従って漸次上側に向かう平面に形成されている。第４下部当接部材５１の下面５１ａの水平面に対する傾斜角度は、第２下部当接部材４９の下面４９ａの水平面に対する傾斜角度θ１よりも大きく、第３下部当接部材５０の下面５０ａの水平面に対する傾斜角度と同じθ２となっている。第４下部当接部材５１は、第４下部傾斜面３１４と面接触可能に構成されている。 The third lower contact member 50 is formed in a plane that gradually rises upward as the lower surface 50a moves toward one side in the Y direction. Inclination angle relative to the horizontal plane of the lower surface 50a of the third lower contact member 50 has a larger theta 2 than the inclination angle theta 1 with respect to the horizontal plane of the lower surface 48a of the first lower contact member 48. The third lower contact member 50 is configured to be in surface contact with the third lower inclined surface 313.
The fourth lower contact member 51 is formed in a plane that gradually rises upward as the lower surface 51a moves toward the other side in the Y direction. Inclination angle relative to the horizontal plane of the lower surface 51a of the fourth lower contact member 51 is greater than the angle of inclination theta 1 with respect to the horizontal plane of the lower surface 49a of the second lower contact member 49, the horizontal plane of the lower surface 50a of the third lower contact member 50 It has the same theta 2 an inclination angle with respect to. The fourth lower contact member 51 is configured to be in surface contact with the fourth lower inclined surface 314.

このような免震機構１は、初期状態では、図１、図２および図４に示すように、上部案内部材２の上側中央部２１ａと、下部案内部材３の下側中央部３１ａとが上下方向に重なり、これらの上部案内部材２の上側中央部２１ａと、下部案内部材３の下側中央部３１ａとの間に可動子４が配置されている。   In the initial state, such an seismic isolation mechanism 1 has an upper central portion 21a of the upper guide member 2 and a lower central portion 31a of the lower guide member 3 vertically as shown in FIGS. The mover 4 is disposed between the upper central portion 21 a of the upper guide member 2 and the lower central portion 31 a of the lower guide member 3.

第１上部当接部材４４は、上面４４ａが第１上部傾斜面２１１と面接触し、第２上部当接部材４５は、上面４５ａが第２上部傾斜面２１２と面接触している（図２参照）。なお、第３上部当接部材４６および第４上部当接部材４７は、上面４６ａが上側溝部２５の底部と間隔をあけて対向している。
第１下部当接部材４８は、下面４６ａが第１下部傾斜面３１１と面接触し、第２下部当接部材４９は、下面４６ａが第２下部傾斜面３１２と面接触している（図１参照）。なお、第３下部当接部材５０および第４下部当接部材５１は、下面５０ａ，５１ａが下側溝部の底部と間隔をあけて対向している。
初期状態では、第１上部当接部材４４、第２上部当接部材４５、第１下部当接部材４８および第２下部当接部材４９は、それぞれ上部構造物の荷重を負担している。 The upper surface 44a of the first upper contact member 44 is in surface contact with the first upper inclined surface 211, and the upper surface 45a of the second upper contact member 45 is in surface contact with the second upper inclined surface 212 (FIG. 2). reference). The upper surface 46a of the third upper contact member 46 and the fourth upper contact member 47 face the bottom of the upper groove 25 at an interval.
The lower surface 46a of the first lower contact member 48 is in surface contact with the first lower inclined surface 311. The lower surface 46a of the second lower contact member 49 is in surface contact with the second lower inclined surface 312 (FIG. 1). reference). The lower surface 50a of the third lower contact member 50 and the lower surface 51a of the fourth lower contact member 51 face the bottom of the lower groove at an interval.
In the initial state, the first upper contact member 44, the second upper contact member 45, the first lower contact member 48, and the second lower contact member 49 respectively bear the load of the upper structure.

このような免震機構１は、図１３乃至図１６に示すように、地震が生じて上部構造体１１と下部構造体１２とが水平方向に相対変位すると、上部案内部材２と下部案内部材３とが水平方向に相対変位して、上部案内部材２と下部案内部材３との交差部５が移動する。上部構造体１１と下部構造体１２とが水平方向に相対変位しても、可動子４は常に上部案内部材２と下部案内部材３との交差部５に配置されている。なお、図１３および図１４では、上部案内部材２を省略し、図１５および図１６では、下部案内部材３を省略している。   As shown in FIGS. 13 to 16, when the earthquake causes an upper structure 11 and a lower structure 12 to be relatively displaced in the horizontal direction as shown in FIGS. Are relatively displaced in the horizontal direction, and the intersection 5 between the upper guide member 2 and the lower guide member 3 moves. Even if the upper structure 11 and the lower structure 12 are relatively displaced in the horizontal direction, the mover 4 is always disposed at the intersection 5 between the upper guide member 2 and the lower guide member 3. 13 and 14, the upper guide member 2 is omitted, and in FIGS. 15 and 16, the lower guide member 3 is omitted.

また、免震機構１は、図１および図２に示す初期状態から、図１３および図１４に示す可動子４と下部案内部材３とがＹ方向に相対変位した状態となると、下部案内部材３に対する可動子４の位置が初期状態よりも高い位置となり、ポテンシャルエネルギー（位置エネルギー）が蓄積される。また、図１および図２に示す初期状態から図１５および図１６に示す可動子４と上部案内部材２とがＸ方向に相対変位した状態となると、可動子４に対する上部案内部材２の位置が初期状態よりも高い位置となり、ポテンシャルエネルギー（位置エネルギー）が蓄積される。   When the movable element 4 and the lower guide member 3 shown in FIGS. 13 and 14 are relatively displaced in the Y direction from the initial state shown in FIGS. 1 and 2, the lower guide member 3 Becomes higher than the initial state, and potential energy (potential energy) is accumulated. When the movable member 4 and the upper guide member 2 shown in FIGS. 15 and 16 are relatively displaced in the X direction from the initial state shown in FIGS. 1 and 2, the position of the upper guide member 2 with respect to the movable member 4 is changed. The position becomes higher than the initial state, and potential energy (potential energy) is accumulated.

続いて、本実施形態による免震機構１の挙動について説明する。
図１に示す初期状態から、可動子４と下部案内部材３とが相対移動して可動子４が下部案内部材３に対してＹ方向の一方側に向かうと、可動子４は第２下部当接部材４９が第２下部傾斜面３１２から離間し、第１下部当接部材４８が第１下部傾斜面３１１と当接した状態で下部案内部材３と相対移動する。 Subsequently, the behavior of the seismic isolation mechanism 1 according to the present embodiment will be described.
When the mover 4 and the lower guide member 3 relatively move from the initial state shown in FIG. 1 and move toward the one side in the Y direction with respect to the lower guide member 3, the mover 4 The contact member 49 is separated from the second lower inclined surface 312, and relatively moves with the lower guide member 3 in a state where the first lower contact member 48 is in contact with the first lower inclined surface 311.

更に、可動子４が下部案内部材３に対してＹ方向の一方側に向かうと、図１３に示すように、可動子４は第１下部当接部材４８が第１下部傾斜面３１１と当接と当接したまま第３下部当接部材５０が第３下部傾斜面３１３と当接した状態となる。
更に、可動子４が下部案内部材３に対してＹ方向の一方側に向かうと、図１４に示すように、第３下部当接部材５０が第３下部傾斜面３１３と当接したまま、第１下部当接部材４８が第１下部傾斜面３１１と離間した状態で下部案内部材３と相対移動する。
更に、可動子４が下部案内部材３に対してＹ方向の一方側に向かうと、可動子４は、下部案内部材３のストッパ３３と当接して、下部案内部材３に対するＹ方向の一方側へ向かう移動が拘束される。 Further, when the mover 4 moves toward one side in the Y direction with respect to the lower guide member 3, as shown in FIG. 13, the mover 4 has the first lower contact member 48 in contact with the first lower inclined surface 311. The third lower contact member 50 comes into contact with the third lower inclined surface 313 while keeping the contact.
Further, when the mover 4 moves toward one side in the Y direction with respect to the lower guide member 3, as shown in FIG. 14, the third lower contact member 50 is kept in contact with the third lower inclined surface 313, and The first lower contact member 48 relatively moves with the lower guide member 3 in a state where the lower contact member 48 is separated from the first lower inclined surface 311.
Further, when the mover 4 moves toward one side in the Y direction with respect to the lower guide member 3, the mover 4 contacts the stopper 33 of the lower guide member 3 and moves toward one side in the Y direction with respect to the lower guide member 3. Heading movement is restricted.

同様に、図１に示す初期状態から、可動子４と下部案内部材３とが相対移動して可動子４が下部案内部材３に対してＹ方向の他方側に向かうと、可動子４は第１下部当接部材４８が第１下部傾斜面３１１から離間し、第２下部当接部材４９が第２下部傾斜面３１２と当接した状態で下部案内部材３と相対移動する。
更に、可動子４が下部案内部材３に対してＹ方向の他方側に向かうと、図１３に示すように、可動子４は第２下部当接部材４９が第２下部傾斜面３１２と当接すると当接したまま第４下部当接部材５１が第４下部傾斜面３１４と当接した状態となる。
更に、可動子４が下部案内部材３に対してＹ方向の他方側に向かうと、図１４に示すように、第４下部当接部材５１が第４下部傾斜面３１４と当接したまま、第２下部当接部材４９が第２下部傾斜面３１２と離間した状態で下部案内部材３と相対移動する。
更に、可動子４が下部案内部材３に対してＹ方向の他方側に向かうと、可動子４は、下部案内部材３のストッパ３３と当接して、下部案内部材３に対するＹ方向の他方側へ向かう移動が拘束される。 Similarly, when the mover 4 and the lower guide member 3 relatively move from the initial state shown in FIG. 1 and move toward the other side in the Y direction with respect to the lower guide member 3, the mover 4 The first lower contact member 48 is separated from the first lower inclined surface 311, and the second lower contact member 49 relatively moves with the lower guide member 3 in a state of contacting the second lower inclined surface 312.
Further, when the mover 4 moves toward the other side in the Y direction with respect to the lower guide member 3, as shown in FIG. 13, the mover 4 causes the second lower contact member 49 to contact the second lower inclined surface 312. Then, the fourth lower contact member 51 comes into contact with the fourth lower inclined surface 314 while keeping contact.
Further, when the mover 4 moves toward the other side in the Y direction with respect to the lower guide member 3, the fourth lower contact member 51 is kept in contact with the fourth lower inclined surface 314 as shown in FIG. (2) The lower contact member 49 relatively moves with the lower guide member 3 in a state where the lower contact member 49 is separated from the second lower inclined surface 312.
Further, when the mover 4 moves toward the other side of the lower guide member 3 in the Y direction, the mover 4 contacts the stopper 33 of the lower guide member 3 and moves to the other side of the lower guide member 3 in the Y direction. Heading movement is restricted.

図２に示す初期状態から、可動子４と上部案内部材２とが相対移動して可動子４が上部案内部材２に対してＸ方向の一方側に向かうと、可動子４は第２上部当接部材４５が第２上部傾斜面２１２から離間し、第１上部当接部材４４が第１上部傾斜面２１１と当接した状態で上部案内部材２と相対移動する。
更に、可動子４が上部案内部材２に対してＸ方向の一方側に向かうと、図１５に示すように、可動子４は第１上部当接部材４４が第１上部傾斜面２１１と当接と当接したまま第３上部当接部材４６が第３上部傾斜面２１３と当接した状態となる。
更に、可動子４が上部案内部材２に対してＸ方向の一方側に向かうと、図１６に示すように、第３上部当接部材４６が第３上部傾斜面２１３と当接したまま、第１上部当接部材４４と第１上部傾斜面２１１とが離間した状態で上部案内部材２と相対移動する。
更に、可動子４が上部案内部材２に対してＸ方向の一方側に向かうと、可動子４は、上部案内部材２のストッパ２３と当接して、上部案内部材２に対するＸ方向の一方側へ向かう移動が拘束される。 When the mover 4 and the upper guide member 2 relatively move from the initial state shown in FIG. 2 and move toward the one side in the X direction with respect to the upper guide member 2, the mover 4 The contact member 45 is separated from the second upper inclined surface 212, and relatively moves with the upper guide member 2 while the first upper contact member 44 is in contact with the first upper inclined surface 211.
Further, when the mover 4 moves toward one side in the X direction with respect to the upper guide member 2, as shown in FIG. 15, the mover 4 causes the first upper contact member 44 to contact the first upper inclined surface 211. The third upper contact member 46 is in contact with the third upper inclined surface 213 while keeping the contact.
Further, when the mover 4 moves toward one side in the X direction with respect to the upper guide member 2, as shown in FIG. 16, the third upper contact member 46 is kept in contact with the third upper inclined surface 213, and The first upper contact member 44 and the first upper inclined surface 211 are relatively moved with the upper guide member 2 in a state where they are separated from each other.
Further, when the mover 4 moves toward one side in the X direction with respect to the upper guide member 2, the mover 4 contacts the stopper 23 of the upper guide member 2 and moves toward one side in the X direction with respect to the upper guide member 2. Heading movement is restricted.

同様に、図２に示す初期状態から、可動子４と上部案内部材２とが相対移動して可動子４が上部案内部材２に対してＸ方向の他方側に向かうと、可動子４は第１上部当接部材４４が第１上部傾斜面２１１から離間し、第２上部当接部材４５が第２上部傾斜面２１２と当接した状態で上部案内部材２と相対移動する。
更に、可動子４が上部案内部材２に対してＸ方向の他方側に向かうと、図１５に示すように、可動子４は第２上部当接部材４５が第２上部傾斜面２１２と当接したまま第４上部当接部材４７が第４上部傾斜面２１４と当接した状態となる。
更に、可動子４が上部案内部材２に対してＸ方向の他方側に向かうと、図１６に示すように、第４上部当接部材４７が第４上部傾斜面２１４と当接したまま、第２上部当接部材４５と第２上部傾斜面２１２とが離間した状態で上部案内部材２と相対移動する。
更に、可動子４が上部案内部材２に対してＸ方向の他方側に向かうと、可動子４は、上部案内部材２のストッパ２３と当接して、上部案内部材２に対するＸ方向の他方側へ向かう移動が拘束される。
なお、可動子４が上部案内部材２および下部案内部材３に対して初期状態となるように移動する際には、上述した挙動と反対の挙動が行われる。 Similarly, when the mover 4 and the upper guide member 2 relatively move from the initial state shown in FIG. 2 and move toward the other side in the X direction with respect to the upper guide member 2, the mover 4 The first upper contact member 44 is separated from the first upper inclined surface 211, and the second upper contact member 45 relatively moves with the upper guide member 2 in a state of contacting the second upper inclined surface 212.
Further, when the mover 4 moves toward the other side in the X direction with respect to the upper guide member 2, as shown in FIG. 15, the mover 4 causes the second upper contact member 45 to contact the second upper inclined surface 212. In this state, the fourth upper contact member 47 comes into contact with the fourth upper inclined surface 214.
Further, when the mover 4 moves toward the other side in the X direction with respect to the upper guide member 2, as shown in FIG. 16, the fourth upper contact member 47 is kept in contact with the fourth upper inclined surface 214, and The second upper contact member 45 and the second upper inclined surface 212 move relative to the upper guide member 2 in a state where they are separated from each other.
Further, when the mover 4 moves toward the other side of the upper guide member 2 in the X direction, the mover 4 contacts the stopper 23 of the upper guide member 2 and moves to the other side of the upper guide member 2 in the X direction. Heading movement is restricted.
When the mover 4 moves so as to be in the initial state with respect to the upper guide member 2 and the lower guide member 3, a behavior opposite to the above-described behavior is performed.

免震機構１の支持する軸力（自重）をＷとすると、第１上部傾斜面２１１の傾斜による復元力（水平力）Ｆ１は、以下の式で表される。
Ｆ１＝Ｗｔａｎθ１ When the axial force to support the seismic isolation mechanism 1 (self-weight) of is W, the restoring force due to the inclination of the first upper slanted surface 211 (horizontal force) F 1 is expressed by the following equation.
F 1 = Wtan θ 1

これは、上部構造体１１と下部構造体１２との間に予引張力Ｆの定荷重ばねを設置した場合と同じで、上部構造体１１と下部構造体１２の相対変位量によらず一定の復元力Ｆが作用することになる。ｔａｎθ１≧μ１ならば、残留変位を完全に除去できる。しかし、残留変位を略なくせる傾斜復元力は、摩擦力の０．１〜０．４倍あればよいという先願（特願２０１１−２０１８７３）の知見から、μ１＝０．１とすると、Ｆ１は以下の式であれわされる。
Ｆ１＝Ｗｔａｎθ１＝（０．１〜０．４）μ１Ｗ＝（０．０１〜０．０４）Ｗ This is the same as the case where a constant load spring with a pre-tension force F is installed between the upper structure 11 and the lower structure 12, and is constant regardless of the relative displacement of the upper structure 11 and the lower structure 12. The restoring force F acts. If tanθ 1 ≧ μ 1, it can be completely removed residual displacement. However, based on the knowledge of the prior application (Japanese Patent Application No. 2011-201873) that the tilt restoring force for substantially eliminating the residual displacement should be 0.1 to 0.4 times the frictional force, if μ 1 = 0.1, F 1 is given by the following equation.
F 1 = Wtan θ 1 = (0.1 to 0.4) μ 1 W = (0.01 to 0.04) W

なお、第３上部傾斜面２１３の傾斜による復元力（水平力）Ｆ２は、以下の式で表される。
Ｆ２＝Ｗｔａｎθ２
θ２についてもθ１と同様に残留変位を完全に除去できるようにｔａｎθ２≧μ２とする。更に、Ｆ２＝Ｗｔａｎθ２＝（０．１〜０．４）μ２Ｗとする。 Incidentally, the restoring force due to the inclination of the third upper slanted surface 213 (horizontal force) F 2 is expressed by the following equation.
F 2 = Wtan θ 2
also to tanθ 2 ≧ μ 2 so that it can be completely removed in the same manner as residual displaced theta 1 for theta 2. Further, it is assumed that F 2 = Wtan θ 2 = (0.1 to 0.4) μ 2 W.

ここで、θ２＞θ１であるため、Ｆ２＞Ｆ１となる。 Here, since θ 2 > θ 1 , F 2 > F 1 .

本実施形態による免震機構１の復元力特性（荷重−変形関係）を図１７に示す。
第１〜４上部当接部材４２〜４５および第１〜４下部当接部材４６〜４９が摺動する際の摩擦抵抗による復元力特性（μ１Ｗ、μ２Ｗ）、傾斜による復元力特性（Ｆ１＝Ｗｔａｎθ１、Ｆ２＝Ｗｔａｎθ２）およびストッパ２３，３３による復元力特性を合成したものが本実施形態による免震機構１の復元力特性となる。
図１７におけるＬ１は、上部当接面２１および下部当接面３１の傾斜角度がθ１の範囲を示し、Ｌ２は上部当接面２１および下部当接面３１の傾斜角度がθ２の範囲を示している。
なお、Ｌ２における復元力（μ２Ｗ２＋Ｗｔａｎθ２）をＬ１における復元力（μ１Ｗ１＋Ｗｔａｎθ１）よりも大きく設定することにより、可動子４の上部案内部材２および下部案内部材３に対する水平移動を停止させることが可能となる。 FIG. 17 shows the restoring force characteristics (load-deformation relationship) of the seismic isolation mechanism 1 according to the present embodiment.
Restoring force characteristics (μ 1 W, μ 2 W) due to frictional resistance and sliding force characteristics when the first to fourth upper contact members 42 to 45 and the first to fourth lower contact members 46 to 49 slide. (F 1 = Wtan θ 1 , F 2 = Wtan θ 2 ) and the restoring force characteristics of the stoppers 23 and 33 are combined to provide the restoring force characteristics of the seismic isolation mechanism 1 according to the present embodiment.
L 1 in FIG. 17, the inclination angle of the upper abutting surface 21 and a lower abutment surface 31 represents the range of theta 1, L 2 are the inclination angle of the upper abutting surface 21 and a lower abutment surface 31 of the theta 2 The range is shown.
Incidentally, the restoring force in L 2 (μ 2 W 2 + Wtanθ 2) by greater than a restoring force in L 1 (μ 1 W 1 + Wtanθ 1), the upper guide member 2 and the lower guide member 3 of the movable element 4 Can be stopped horizontally.

次に、上述した免震機構１の作用・効果について図面を用いて説明する。
上述した本実施形態による免震機構１では、上側突出部４２の上側部分４２１が上側溝部２５の下側領域２５２よりもＹ方向の寸法が大きく形成されていることにより、上側突出部４２の上側部分４２１が上側溝部２５の下側領域２５２に入り込むことができず、上側溝部２５の段部２５３に引っ掛かるため、上側突出部４２が上側溝部２５から外れることを防止することができる。これにより、可動子４が上部案内部材２から上下方向に外れることを防止できる。
なお、上側突出部４２の上側部分４２１のＸ方向およびＹ方向の寸法、上側溝部２５の上側領域２５１および下側領域２５２のＹ方向の寸法、は、可動子４が上部案内部材２から上下方向に外れないために必要な抵抗力を考慮した寸法に形成されている。 Next, the operation and effect of the seismic isolation mechanism 1 will be described with reference to the drawings.
In the seismic isolation mechanism 1 according to the present embodiment described above, the upper portion 421 of the upper protruding portion 42 is formed to be larger in the Y direction than the lower region 252 of the upper groove portion 25, so that the upper protruding portion 42 Since the upper portion 421 cannot enter the lower region 252 of the upper groove 25 and is caught by the step 253 of the upper groove 25, the upper protrusion 42 can be prevented from coming off the upper groove 25. . Thereby, the mover 4 can be prevented from coming off the upper guide member 2 in the vertical direction.
The dimensions of the upper portion 421 of the upper protruding portion 42 in the X and Y directions, and the dimensions of the upper region 251 and the lower region 252 of the upper groove 25 in the Y direction are determined by moving the movable element 4 up and down from the upper guide member 2. It is formed in a size that takes into account the resistance required to prevent it from deviating in the direction.

また、下側突出部４３の下側部分４３１が下側溝部３５の上側領域３５２よりもＹ方向の寸法が大きく形成されていることにより、下側突出部４３の下側部分４３１が下側溝部３５の上側領域３５２に入り込むことができず、下側溝部３５の段部３５３に引っ掛かるため、下側突出部４３が下側溝部３５から外れることを防止することができる。これにより、可動子４が下部案内部材３から上下方向に外れることを防止できる。
なお、下側突出部４３の下側部分４３１のＸ方向およびＹ方向の寸法、下側溝部３５の下側領域３５１および上側領域３５２のＹ方向の寸法、は、可動子４が下部案内部材３から上下方向に外れないために必要な抵抗力を考慮した寸法に形成されている。 In addition, since the lower portion 431 of the lower protrusion 43 is formed to be larger in the Y direction than the upper region 352 of the lower groove 35, the lower portion 431 of the lower protrusion 43 is formed by the lower groove 431. Since it is not possible to enter the upper region 352 of the lower groove 35 and is caught by the step 353 of the lower groove 35, the lower protrusion 43 can be prevented from coming off the lower groove 35. Thereby, it is possible to prevent the mover 4 from coming off the lower guide member 3 in the vertical direction.
The dimensions of the lower portion 431 in the X direction and the Y direction of the lower protruding portion 43 and the dimensions of the lower region 351 and the upper region 352 of the lower groove 35 in the Y direction are as follows. Is formed in consideration of the resistance force required to prevent it from coming off in the vertical direction.

また、上部案内部材２、下部案内部材３、および可動子４は、設置されると上下方向に外れないようになるため、施工の際に仮留めの設置および外し作業を行わなくてよく、施工の手間およびコストを削減することができる。   Moreover, since the upper guide member 2, the lower guide member 3, and the mover 4 do not come off in the vertical direction when they are installed, it is not necessary to perform installation and removal work of the temporary fixing at the time of construction. Labor and cost can be reduced.

第３上部傾斜面２１３の勾配が第１上部傾斜面２１１の勾配よりも大きいことにより、可動子４が上部案内部材２に対してＹ方向の一方側に向かうように可動子４と上部案内部材２とが相対変位した際に、第１上部傾斜面２１１に沿って移動してきた可動子４が第３上部傾斜面２１３に沿って移動することで、可動子４と上部案内部材２との相対変位が減速されるため、可動子４が上部案内部材２のＹ方向の一方側に外れることを防止できる。
また、第４上部傾斜面２１４の勾配が第２上部傾斜面２１２の勾配よりも大きいことにより、可動子４が上部案内部材２に対してＹ方向の他方側に向かうように可動子４と上部案内部材２とが相対変位した際に、第２上部傾斜面２１２に沿って移動してきた可動子４が第４上部傾斜面２１４に沿って移動することで、可動子４と上部案内部材２との相対変位が減速されるため、可動子４が上部案内部材２のＸ方向の他方側に外れることを防止できる。 Since the gradient of the third upper inclined surface 213 is larger than the gradient of the first upper inclined surface 211, the movable element 4 and the upper guide member are moved so that the movable element 4 is directed to one side in the Y direction with respect to the upper guide member 2. When the movable member 4 is relatively displaced, the mover 4 that has moved along the first upper inclined surface 211 moves along the third upper inclined surface 213, so that the movable member 4 and the upper guide member 2 can move relative to each other. Since the displacement is reduced, the mover 4 can be prevented from coming off to one side of the upper guide member 2 in the Y direction.
Further, since the gradient of the fourth upper inclined surface 214 is larger than the gradient of the second upper inclined surface 212, the movable element 4 and the upper part are moved so that the movable element 4 faces the other side in the Y direction with respect to the upper guide member 2. When the guide member 2 is relatively displaced, the mover 4 that has moved along the second upper inclined surface 212 moves along the fourth upper inclined surface 214, so that the mover 4 and the upper guide member 2 Is reduced, the mover 4 can be prevented from coming off the other side of the upper guide member 2 in the X direction.

また、可動子４と下部案内部材３との相対変位についても可動子４と上部案内部材２との相対変位と同様に、第３下部傾斜面３１３の勾配が第１下部傾斜面３１１の勾配よりも大きいことにより、可動子４が下部案内部材３に対してＹ方向の一方側に向かうように可動子４と下部案内部材３とが相対変位した際に、第１下部傾斜面３１１に沿って移動してきた可動子４が第３下部傾斜面３１３に沿って移動することで、可動子４と下部案内部材３との相対変位が減速されるため、可動子４が下部案内部材３のＹ方向の一方側に外れることを防止することができる。第４下部傾斜面３１４の勾配が第２下部傾斜面３１２の勾配よりも大きいことにより、可動子４が下部案内部材３に対してＹ方向の他方側に向かうように可動子４と下部案内部材３とが相対変位した際に、第２下部傾斜面３１２に沿って移動してきた可動子４が第４下部傾斜面３１４に沿って移動することで、可動子４下部案内部材３との相対変位が減速されるため、可動子４が下部案内部材３のＹ方向の他方側に外れることを防止することができる。   Also, as for the relative displacement between the mover 4 and the lower guide member 3, similarly to the relative displacement between the mover 4 and the upper guide member 2, the gradient of the third lower inclined surface 313 is smaller than the gradient of the first lower inclined surface 311. Is larger, the movable element 4 moves along the first lower inclined surface 311 when the movable element 4 and the lower guide member 3 are displaced relative to each other in the Y direction with respect to the lower guide member 3. Since the mover 4 that has moved moves along the third lower inclined surface 313, the relative displacement between the mover 4 and the lower guide member 3 is reduced, and the mover 4 is moved in the Y direction of the lower guide member 3. To one side. Since the gradient of the fourth lower inclined surface 314 is larger than the gradient of the second lower inclined surface 312, the movable element 4 and the lower guide member are moved so that the movable element 4 is directed to the other side in the Y direction with respect to the lower guide member 3. When the movable member 4 moves along the second lower inclined surface 312 when the movable member 4 moves along the fourth lower inclined surface 314, the movable member 4 moves relative to the lower guide member 3 relative to the movable member 4. Is decelerated, so that the mover 4 can be prevented from coming off the other side of the lower guide member 3 in the Y direction.

また、上側溝部２５の内部に第３上部傾斜面２１３および第４上部傾斜面２１４が形成され、下側溝部３５の内部に第３下部傾斜面３１３および第４下部傾斜面３１４が形成されるため、免震機構１の小型化を図ることができる。   Further, a third upper inclined surface 213 and a fourth upper inclined surface 214 are formed inside the upper groove 25, and a third lower inclined surface 313 and a fourth lower inclined surface 314 are formed inside the lower groove 35. Therefore, the size of the seismic isolation mechanism 1 can be reduced.

以上、本発明による免震機構の実施形態について説明したが、本発明は上記の実施形態に限定されるものではなく、その趣旨を逸脱しない範囲で適宜変更可能である。
例えば、例えば、上記の実施形態では、第１〜第４上部当接部材４２〜４５は上部当接面を摺動可能に構成されているが、転動可能に構成されていてもよい。また、第１〜第４下部当接部材４６〜４９は下部当接面を摺動可能に構成されているが、転動可能に構成されていてもよい。 Although the embodiment of the seismic isolation mechanism according to the present invention has been described above, the present invention is not limited to the above embodiment, and can be appropriately changed without departing from the gist of the present invention.
For example, in the above embodiment, the first to fourth upper contact members 42 to 45 are configured to be slidable on the upper contact surface, but may be configured to be rollable. The first to fourth lower contact members 46 to 49 are configured to be slidable on the lower contact surface, but may be configured to be rollable.

また、上記の実施形態では、上側突出部４２の下側部分４２２のＹ方向の両側に、上側溝部２５の下側領域２５２の側面と接触した際の摩擦力を小さくするための摩擦材４２４，４２４が設けられている。このような摩擦材４２４，４２４に代わって、図１８および図１９に示すように、上側突出部４２の上側部分４２１のＹ方向の両側に上側溝部２５の上側領域２５１と接触した際の摩擦力を小さくするための摩擦材４２４Ｂ，４２４Ｂが設けられていてもよい。
また、下側突出部４３の上側部分４３２のＸ方向の両側には、下側溝部３５の上側領域５３２の側面と接触した際の摩擦力を小さくするための摩擦材４３４，４３４が設けられているが、このような摩擦材４３４，４３４に代わって、図２０および図２１に示すように、下側突出部４３の下側部分４３１のＸ方向の両側に、下側溝部３５の下側領域３５１の側面と接触した際の摩擦力を小さくするための摩擦材４３４Ｂ，４３４Ｂが設けられていてもよい。 In the above-described embodiment, the friction members 424 for reducing the frictional force when the lower portion 422 of the upper protrusion 42 contacts the side surface of the lower region 252 of the upper groove 25 are provided on both sides in the Y direction. , 424 are provided. Instead of the friction members 424 and 424, as shown in FIGS. 18 and 19, the friction when the upper portion 421 of the upper protrusion 42 contacts the upper region 251 of the upper groove 25 on both sides in the Y direction. Friction materials 424B, 424B for reducing the force may be provided.
Further, on both sides of the upper portion 432 of the lower protruding portion 43 in the X direction, friction materials 434 and 434 for reducing a frictional force when the upper portion 432 contacts the side surface of the upper region 532 of the lower groove portion 35 are provided. However, instead of such friction materials 434 and 434, as shown in FIGS. 20 and 21, on both sides in the X direction of the lower portion 431 of the lower protrusion 43, the lower region of the lower groove 35 is provided. Friction materials 434B, 434B may be provided to reduce the frictional force when contacting the side surface of the 351.

また、下部案内部材３のストッパ３３，３３は、下側溝部３５のＹ方向の端部の開口全体を覆う大きさに形成されているが、可動子４の少なくとも一部が当接して可動子４の水平方向の脱落を防止可能であれば、図２２に示すストッパ３３Ｂ，３３Ｂのように、下側溝部３５のＹ方向の端部の開口の少なくとも一部を覆う大きさに形成されていてもよい。
同様に、上部案内部材２のストッパ２３，２３についても、可動子４の少なくとも一部が当接して可動子４の水平方向の脱落を防止可能であれば、上側溝部２５のＸ方向の端部の開口の少なくとも一部を覆う大きさに形成されていてもよい。 The stoppers 33, 33 of the lower guide member 3 are formed to have a size that covers the entire opening at the end of the lower groove 35 in the Y direction. If it is possible to prevent the horizontal groove 4 from falling off, it is formed to have a size that covers at least a part of the opening at the end of the lower groove 35 in the Y direction, like the stoppers 33B and 33B shown in FIG. Is also good.
Similarly, with respect to the stoppers 23 of the upper guide member 2, if at least a part of the mover 4 can be abutted to prevent the mover 4 from falling off in the horizontal direction, the end of the upper groove 25 in the X direction can be prevented. It may be formed in a size that covers at least a part of the opening of the portion.

１ 免震機構
２ 上部案内部材
３ 下部案内部材
４ 可動子
５ 交差部
１１ 上部構造体
１２ 下部構造体
１３ 免震層
２１ 上部当接面
２１ａ 上側中央部
２３ ストッパ
２５ 上側溝部
３１ 下部当接面
３１ａ 下側中央部
３３ ストッパ
３５ 下側溝部
４２ 上側突出部
４３ 下側突出部
４４ 第１上部当接部材
４５ 第２上部当接部材
４６ 第３上部当接部材
４７ 第４上部当接部材
４８ 第１下部当接部材
４９ 第２下部当接部材
５０ 第３下部当接部材
５１ 第４下部当接部材
２１１ 第１上部傾斜面
２１２ 第２上部傾斜面
２１３ 第３上部傾斜面
２１４ 第４上部傾斜面
３１１ 第１下部傾斜面
３１２ 第２下部傾斜面
３１３ 第３下部傾斜面
３１４ 第４下部傾斜面
２５１ 上側領域
２５２ 下側領域
３５１ 下側領域
３５２ 上側領域
４２１ 上側部分
４２２ 下側部分
４３１ 下側部分
４３２ 上側部分 DESCRIPTION OF SYMBOLS 1 Seismic isolation mechanism 2 Upper guide member 3 Lower guide member 4 Mover 5 Intersection 11 Upper structure 12 Lower structure 13 Seismic isolation layer 21 Upper contact surface 21a Upper central portion 23 Stopper 25 Upper groove 31 Lower contact surface 31a Lower central portion 33 Stopper 35 Lower groove portion 42 Upper projecting portion 43 Lower projecting portion 44 First upper contact member 45 Second upper contact member 46 Third upper contact member 47 Fourth upper contact member 48 1 lower contact member 49 second lower contact member 50 third lower contact member 51 fourth lower contact member 211 first upper inclined surface 212 second upper inclined surface 213 third upper inclined surface 214 fourth upper inclined surface 311 First lower inclined surface 312 Second lower inclined surface 313 Third lower inclined surface 314 Fourth lower inclined surface 251 Upper area 252 Lower area 351 Lower area 352 Upper area 421 Upper area Min 422 lower portion 431 lower portion 432 the upper portion

Claims (1)

水平方向に相対変位可能な上部構造体と下部構造体との間に設けられる免震機構において、
前記上部構造体の底部に固定される上部案内部材と、
前記下部構造体の上部に固定される下部案内部材と、
前記上部案内部材および前記下部案内部材との間に介装され、前記上部案内部材と一の水平方向に相対変位可能であるとともに、前記下部案内部材と前記一の水平方向に直交する他の水平方向に相対変位可能な可動子と、を有し、
前記上部案内部材は、前記可動子が当接する上部当接面を有するとともに、前記一の水平方向に延在し下側に開口する上側溝部が形成され、
前記上部当接面は、前記一の水平方向に沿って上側に凸となる逆Ｖ字型状に傾斜していて、
前記下部案内部材は、前記可動子が当接する下部当接面を有するとともに、前記他の水平方向に延在し上側に開口する下側溝部が形成され、
前記下部当接面は、前記他の水平方向に沿って下側に凸となるＶ字型状に傾斜していて、
前記可動子は、本体部と、
該本体部に固定されて前記上部当接面に当接した状態で該上部当接面に沿って移動可能な上部当接部材と、
前記本体部に固定されて前記下部当接面に当接した状態で該下部当接面に沿って移動可能な下部当接部材と、
前記本体部から上側に突出し前記上側溝部に挿入された上側突出部と、
前記本体部から下側に突出し前記下側溝部に挿入された下側突出部と、を有し、
前記上側溝部の内部は、上側の上側領域が該上側領域の下側の下側領域よりも前記他の水平方向の寸法が大きく形成され、
前記上側突出部は、上側の上側部分が該上側部分よりも下側の下側部分よりも前記他の水平方向の寸法が大きく形成され、前記上側溝部に挿入されると上側部分が前記上側溝部の内部の上側領域に配置され、下側部分が前記上側溝部の内部の下側領域に配置され、
前記上側突出部の上側部分は、前記上側溝部の内部の下側の領域よりも前記他の水平方向の寸法が大きく、
前記下側溝部の内部は、下側の下側領域が該下側領域よりも上側の上側領域よりも前記一の水平方向の寸法が大きく形成され、
前記下側突出部は、下側の下側部分が該下側部分よりも上側の上側部分よりも前記一の水平方向の寸法が大きく形成され、前記下側溝部に挿入されると下側部分が前記下側溝部の内部の下側領域に配置され、上側部分が前記下側溝部の内部の上側領域に配置され、
前記下側突出部の下側部分は、前記下側溝部の内部の上側の領域よりも前記一の水平方向の寸法が大きく形成され、
前記上部当接面は、前記一の水平方向の中央部となる上側中央部から前記一の水平方向の一方側に配置され、前記上側中央部から前記一の水平方向の一方側に向かうに従って漸次下側に向かう平面に形成された第１上部傾斜面と、
前記上側中央部から前記一の水平方向の他方側に配置され、前記上側中央部から前記一の水平方向の他方側に向かうに従って漸次下側に向かう平面に形成された第２上部傾斜面と、を有し、
前記上側溝部の内部には、前記第１上部傾斜面よりも前記一の水平方向の一方側に配置され、前記一の水平方向の一方側に向かうに従って前記第１上部傾斜面よりも大きな勾配で漸次下側に向かう平面状の第３上部傾斜面と、
前記第２上部傾斜面よりも前記一の水平方向の他方側に配置され、前記一の水平方向の他方側に向かうに従って前記第２上部傾斜面よりも大きな勾配で漸次下側に向かう平面状の第４上部傾斜面と、が形成され、
前記下部当接面は、前記他の水平方向の中央部となる下側中央部から前記他の水平方向の一方側に配置され、前記下側中央部から前記他の水平方向の一方側に向かうに従って漸次上側に向かう平面に形成された第１下部傾斜面と、
前記下側中央部から前記他の水平方向の他方側に配置され、前記下側中央部から前記他の水平方向の他方側に向かうに従って漸次上側に向かう平面に形成された第２下部傾斜面と、を有し、
前記下側溝部の内部には、前記第１下部傾斜面よりも前記他の水平方向の一方側に配置され、前記他の水平方向の一方側に向かうに従って前記第１下部傾斜面よりも大きい勾配で漸次上側に向かう平面状の第３下部傾斜面と、前記第２下部傾斜面よりも前記他の水平方向の他方側に配置され、前記他の水平方向の他方側に向かうに従って前記第２下部傾斜面よりも大きい勾配で漸次上側に向かう平面状の第４下部傾斜面と、を有し、
前記上部当接部材は、前記第１上部傾斜面と当接可能な第１上部当接部材と、前記第２上部傾斜面と当接可能な第２上部当接部材と、を有し、
前記上側突出部は、前記第３上部傾斜面と当接可能な第３上部当接部材と、前記第４上部傾斜面と当接可能な第４上部当接部材と、を有し、
前記下部当接部材は、前記第１下部傾斜面と当接可能な第１下部当接部材と、前記第２下部傾斜面と当接可能な第２下部当接部材と、を有し、
前記下側突出部は、前記第３下部傾斜面と当接可能な第３下部当接部材と、前記第４下部傾斜面と当接可能な第４下部当接部材と、を有し、
初期状態では、前記可動子が前記上側中央部の下側に配置されて、前記第１上部当接部材が前記第１上部傾斜面と当接し、前記第２上部当接部材が前記第２上部傾斜面と当接し、前記第３上部当接部材および前記第４上部当接部材が前記上部当接面と離間するとともに、前記可動子が前記下側中央部の上側に配置されて、前記第１下部当接部材が前記第１下部傾斜面と当接し、前記第２下部当接部材が前記第２下部傾斜面と当接し、前記第３下部当接部材および前記第４下部当接部材が前記下部当接面と離間していて、
前記初期状態から前記上部案内部材に対して前記一の水平方向の一方側に向かうように前記上部案内部材と相対変位し、前記第１上部当接部材が前記第１上部傾斜面と当接するとともに前記第３上部当接部材が前記第３上部傾斜面と当接するまでの間は、前記第１上部当接部材が前記第１上部傾斜面と当接し、前記第２上部当接部材、前記第３上部当接部材、および前記第４上部当接部材が前記上部当接面と離間し、
前記初期状態から前記上部案内部材に対して前記一の水平方向の他方側に向かうように前記上部案内部材と相対変位し、前記第２上部当接部材が前記第２上部傾斜面と当接するとともに前記第４上部当接部材が前記第４上部傾斜面と当接するまでの間は、前記第２上部当接部材が前記第２上部傾斜面と当接し、前記第１上部当接部材、前記第３上部当接部材、および前記第４上部当接部材が前記上部当接面と離間し、
前記第１上部当接部材が前記第１上部傾斜面と当接するとともに前記第３上部当接部材が前記第３上部傾斜面と当接した状態から、前記上部案内部材に対して前記一の水平方向の一方側に向かうように前記上部案内部材と相対変位すると、前記第３上部当接部材が前記第３上部傾斜面と当接し、前記第１上部当接部材、前記第２上部当接部材、および前記第４上部当接部材が前記上部当接面と離間し、
前記第２上部当接部材が前記第２上部傾斜面と当接するとともに前記第４上部当接部材が前記第４上部傾斜面と当接した状態から、前記上部案内部材に対して前記一の水平方向の他方側に向かうように前記上部案内部材と相対変位すると、前記第４上部当接部材が前記第４上部傾斜面と当接し、前記第１上部当接部材、前記第２上部当接部材、および前記第３上部当接部材が前記上部当接面と離間し、
前記初期状態から前記下部案内部材に対して前記他の水平方向の一方側に向かうように前記下部案内部材と相対変位し、前記第１下部当接部材が前記第１下部傾斜面と当接するとともに前記第３下部当接部材が前記第３下部傾斜面と当接するまでの間は、前記第１下部当接部材が前記第１下部傾斜面と当接し、前記第２下部当接部材、前記第３下部当接部材、および前記第４下部当接部材が前記下部当接面と離間し、
前記初期状態から前記下部案内部材に対して前記他の水平方向の他方側に向かうように前記下部案内部材と相対変位し、前記第２下部当接部材が前記第２下部傾斜面と当接するとともに前記第４下部当接部材が前記第４下部傾斜面と当接するまでの間は、前記第２下部当接部材が前記第２下部傾斜面と当接し、前記第１下部当接部材、前記第３下部当接部材、および前記第４下部当接部材が前記下部当接面と離間し、
前記第１下部当接部材が前記第１下部傾斜面と当接するとともに前記第３下部当接部材が前記第３下部傾斜面と当接した状態から、前記下部案内部材に対して前記他の水平方向の一方側に向かうように前記下部案内部材と相対変位すると、前記第３下部当接部材が前記第３下部傾斜面と当接し、前記第１下部当接部材、前記第２下部当接部材、および前記第４下部当接部材が前記下部当接面と離間し、
前記第２下部当接部材が前記第２下部傾斜面と当接するとともに前記第４下部当接部材が前記第４下部傾斜面と当接した状態から、前記下部案内部材に対して前記他の水平方向の他方側に向かうように前記下部案内部材と相対変位すると、前記第４下部当接部材が前記第４下部傾斜面と当接し、前記第１下部当接部材、前記第２下部当接部材、および前記第３下部当接部材が前記下部当接面と離間していることを特徴とする免震機構。 In the seismic isolation mechanism provided between the upper structure and the lower structure that can be relatively displaced in the horizontal direction,
An upper guide member fixed to the bottom of the upper structure,
A lower guide member fixed to an upper portion of the lower structure,
Interposed between the upper guide member and the lower guide member, the upper guide member is relatively displaceable in one horizontal direction, and the other horizontal plane orthogonal to the lower guide member and the one horizontal direction. Mover relatively displaceable in the direction,
The upper guide member has an upper contact surface with which the mover contacts, and an upper groove portion extending in the horizontal direction and opening downward is formed,
The upper contact surface is inclined in an inverted V-shape protruding upward along the one horizontal direction,
The lower guide member has a lower contact surface with which the mover contacts, and a lower groove extending in the other horizontal direction and opening upward is formed,
The lower contact surface is inclined in a V-shape protruding downward along the other horizontal direction,
The mover includes a main body,
An upper contact member fixed to the main body and movable along the upper contact surface in a state of contacting the upper contact surface;
A lower contact member fixed to the main body and movable along the lower contact surface while in contact with the lower contact surface;
An upper protrusion projecting upward from the main body and inserted into the upper groove,
A lower protruding portion that protrudes downward from the main body portion and is inserted into the lower groove portion,
Inside the upper groove, the upper horizontal region is formed to have a larger dimension in the other horizontal direction than the lower region below the upper region,
The upper protruding portion is formed such that an upper upper portion has a larger dimension in the other horizontal direction than a lower portion below the upper portion, and when inserted into the upper groove, the upper portion has the upper portion. It is arranged in an upper region inside the side groove portion, and a lower portion is arranged in a lower region inside the upper groove portion,
The upper portion of the upper protrusion has a larger dimension in the other horizontal direction than a lower region inside the upper groove,
Inside the lower groove, the lower horizontal region is formed to have the one horizontal dimension larger than the upper region above the lower region,
The lower protruding portion is formed such that the lower lower portion is formed so that the one horizontal dimension is larger than the upper portion above the lower portion, and the lower portion is inserted into the lower groove. Is arranged in a lower region inside the lower groove portion, an upper portion is arranged in an upper region inside the lower groove portion,
The lower portion of the lower protruding portion is formed to have the one horizontal dimension larger than an upper region inside the lower groove portion ,
The upper abutment surface is disposed on one side in the one horizontal direction from an upper central portion that is the one central portion in the horizontal direction, and gradually increases from the upper central portion toward one side in the one horizontal direction. A first upper inclined surface formed on a plane facing downward,
A second upper inclined surface that is disposed on the other side in the one horizontal direction from the upper central portion and is formed on a plane that gradually descends toward the other side in the one horizontal direction from the upper central portion, Has,
Inside the upper groove portion, the first upper inclined surface is disposed on one side in the one horizontal direction from the first upper inclined surface, and the gradient is greater than the first upper inclined surface toward one side in the one horizontal direction. A flat upper third inclined surface gradually descending to the lower side,
A planar shape that is arranged on the other side in the one horizontal direction from the second upper inclined surface and gradually descends at a larger gradient than the second upper inclined surface toward the other side in the one horizontal direction. And a fourth upper inclined surface is formed,
The lower abutment surface is disposed on one side in the other horizontal direction from a lower central portion that is the central portion in the other horizontal direction, and goes from the lower central portion to one side in the other horizontal direction. A first lower inclined surface formed on a plane that gradually rises upward according to
A second lower inclined surface which is arranged on the other side in the other horizontal direction from the lower central portion, and is formed in a plane gradually facing upward from the lower central portion toward the other side in the other horizontal direction; , And
Inside the lower groove, the first lower inclined surface is disposed on one side in the other horizontal direction with respect to the first lower inclined surface, and the gradient is greater than the first lower inclined surface toward one side in the other horizontal direction. And a third lower inclined surface having a planar shape gradually rising toward the upper side, and the second lower inclined surface is disposed on the other side in the other horizontal direction with respect to the second lower inclined surface, and the second lower portion is arranged toward the other side in the other horizontal direction. And a fourth lower inclined surface having a planar shape gradually going upward with an inclination larger than the inclined surface,
The upper contact member has a first upper contact member that can contact the first upper inclined surface, and a second upper contact member that can contact the second upper inclined surface,
The upper protruding portion includes a third upper contact member that can contact the third upper inclined surface, and a fourth upper contact member that can contact the fourth upper inclined surface,
The lower contact member has a first lower contact member that can contact the first lower inclined surface, and a second lower contact member that can contact the second lower inclined surface,
The lower protruding portion includes a third lower contact member capable of contacting the third lower inclined surface, and a fourth lower contact member capable of contacting the fourth lower inclined surface,
In the initial state, the mover is disposed below the upper central portion, the first upper contact member contacts the first upper inclined surface, and the second upper contact member is the second upper contact member. The third upper contact member and the fourth upper contact member are separated from the upper contact surface, and the mover is disposed above the lower central portion, and (1) The lower contact member contacts the first lower inclined surface, the second lower contact member contacts the second lower inclined surface, and the third lower contact member and the fourth lower contact member contact each other. Separated from the lower contact surface,
The upper guide member is relatively displaced from the initial state toward the one side in the one horizontal direction with respect to the upper guide member, and the first upper contact member contacts the first upper inclined surface. Until the third upper contact member contacts the third upper inclined surface, the first upper contact member contacts the first upper inclined surface, and the second upper contact member, the second upper contact member, 3 upper contact member, and the fourth upper contact member is separated from the upper contact surface,
The upper guide member is relatively displaced from the initial state toward the other side of the one horizontal direction with respect to the upper guide member, and the second upper contact member comes into contact with the second upper inclined surface. Until the fourth upper contact member contacts the fourth upper inclined surface, the second upper contact member contacts the second upper inclined surface, and the first upper contact member, the first upper contact member, 3 upper contact member, and the fourth upper contact member is separated from the upper contact surface,
The first upper contact member is in contact with the first upper inclined surface and the third upper contact member is in contact with the third upper inclined surface. When the upper guide member is relatively displaced toward one side in the direction, the third upper contact member contacts the third upper inclined surface, and the first upper contact member and the second upper contact member. , And the fourth upper contact member is separated from the upper contact surface,
The second upper contact member is in contact with the second upper inclined surface and the fourth upper contact member is in contact with the fourth upper inclined surface. When the upper guide member is relatively displaced toward the other side in the direction, the fourth upper contact member contacts the fourth upper inclined surface, and the first upper contact member, the second upper contact member , And the third upper contact member is separated from the upper contact surface,
From the initial state, the lower guide member is relatively displaced with respect to the lower guide member toward one side in the other horizontal direction, and the first lower contact member contacts the first lower inclined surface. Until the third lower contact member contacts the third lower inclined surface, the first lower contact member contacts the first lower inclined surface, and the second lower contact member, the second lower contact member, 3 lower contact member, and the fourth lower contact member is separated from the lower contact surface,
From the initial state, the lower guide member is displaced relative to the lower guide member toward the other side in the other horizontal direction with respect to the lower guide member, and the second lower contact member contacts the second lower inclined surface. Until the fourth lower contact member contacts the fourth lower inclined surface, the second lower contact member contacts the second lower inclined surface, and the first lower contact member, the first 3 lower contact member, and the fourth lower contact member is separated from the lower contact surface,
The first lower contact member contacts the first lower inclined surface and the third lower contact member contacts the third lower inclined surface. When the lower guide member is relatively displaced toward one side in the direction, the third lower contact member comes into contact with the third lower inclined surface, and the first lower contact member, the second lower contact member And the fourth lower contact member is separated from the lower contact surface,
The second lower contact member is in contact with the second lower inclined surface and the fourth lower contact member is in contact with the fourth lower inclined surface. When the lower guide member is relatively displaced toward the other side in the direction, the fourth lower contact member contacts the fourth lower inclined surface, and the first lower contact member, the second lower contact member , And the third lower contact member is separated from the lower contact surface .
JP2016015622A 2016-01-29 2016-01-29 Seismic isolation mechanism Active JP6675636B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2016015622A JP6675636B2 (en) 2016-01-29 2016-01-29 Seismic isolation mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016015622A JP6675636B2 (en) 2016-01-29 2016-01-29 Seismic isolation mechanism

Publications (2)

Publication Number Publication Date
JP2017133650A JP2017133650A (en) 2017-08-03
JP6675636B2 true JP6675636B2 (en) 2020-04-01

Family

ID=59503624

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2016015622A Active JP6675636B2 (en) 2016-01-29 2016-01-29 Seismic isolation mechanism

Country Status (1)

Country Link
JP (1) JP6675636B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019108212A (en) * 2017-12-19 2019-07-04 清水建設株式会社 Base isolation structure of rack

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09210121A (en) * 1996-02-03 1997-08-12 Nippon Pillar Packing Co Ltd Supporting device
JP6497642B2 (en) * 2014-07-01 2019-04-10 清水建設株式会社 Slip isolation mechanism

Also Published As

Publication number Publication date
JP2017133650A (en) 2017-08-03

Similar Documents

Publication Publication Date Title
KR100787494B1 (en) Vibration Reducing Device
KR101503484B1 (en) Earthquake isolation device having anti-bridge and tensile reinforcing
KR101548479B1 (en) Spring restoring and frictional type seismic isolator
KR101069079B1 (en) Seismic isolating device used guide rails
KR102191280B1 (en) Vibration isolation device using ball and spring
KR20200100990A (en) Vibration isolation device with improved restoring force using ball and spring
JP6675636B2 (en) Seismic isolation mechanism
KR101665118B1 (en) Active type vibration isolation device
JP2009121101A (en) Plain rubber bearing device
KR101575743B1 (en) Vibration damper utilizing wedges
KR200422528Y1 (en) Vibration Reducing Device
KR101639568B1 (en) height control device
JP6267457B2 (en) Three-sided slide support device for structures
JP6796817B2 (en) Seismic isolation mechanism
KR102026714B1 (en) Access Floor with Seismic Isolator with Link Device between Activation Area and Deactivation Area
KR102247869B1 (en) Seismic appatatus for preventing breakaway and fall of structure
TWI577859B (en) Seismic isolation structure
JP6497642B2 (en) Slip isolation mechanism
JP7446945B2 (en) Friction damper mechanism
JP6590210B2 (en) Seismic isolation mechanism
JP6748930B2 (en) Seismic isolation mechanism
JP2019070432A (en) Sliding seismic isolation mechanism
KR100948681B1 (en) Elastomeric bearing allowable for the complex movement
JP2000104786A (en) Floating preventive mechanism of base isolation device
KR20170074112A (en) Up-lifting force control device

Legal Events

Date Code Title Description
RD03 Notification of appointment of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7423

Effective date: 20181005

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20190129

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20191114

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20191126

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200122

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20200218

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20200227

R150 Certificate of patent or registration of utility model

Ref document number: 6675636

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150