公开(公告)号：US08308147B2

公开(公告)日：2012-11-13

申请号：US12296318

申请日：2007-04-06

申请人： Hiroshi Kojima ,  Yoshitaka Otsubo

发明人： Hiroshi Kojima ,  Yoshitaka Otsubo

IPC分类号： F16F5/00

CPC分类号： F16F13/107 ,  F16F13/18

摘要： A vibration damper with improved durability achieved by preventing stress concentration in a partition wall portion to avoid an excessive increase in strain in that portion. An intermediate cylinder member (20) is fitted to the inner peripheral surface of an outer cylindrical member (16), and a rubber elastic body (22) is arranged between a mounting member (18) and the intermediate cylinder member (20) to elastically connect them. A first and a second hollow cavities are formed in those regions of the rubber elastic body (22) which correspond to regions in the inner peripheral side of a small diameter portion (20B) of the intermediate cylinder member (20). Partition wall portion (22D) for partitioning the hollow cavities from each other are formed in regions of the rubber elastic body (22) between the first and second hollow cavities. The partition wall portion (22D) of the rubber elastic body (22) has both ends (23) fitted into a pair of openings (44, 46) of the intermediate cylinder member (20) so as to project from the openings (44, 46) toward the outer cylinder member (16).

摘要翻译： 通过防止分隔壁部分中的应力集中而避免在该部分中的应变过度增加，从而提高耐久性的减振器。 中间圆筒部件（20）嵌合在外筒部件（16）的内周面上，橡胶弹性体（22）配置在安装部件（18）与中间筒部件（20）之间，弹性地 连接它们 在橡胶弹性体（22）的与中间筒构件（20）的小径部（20B）的内周侧的区域对应的区域，形成有第一和第二中空腔。 在第一和第二中空腔之间的橡胶弹性体（22）的区域中形成用于将中空腔彼此分隔的隔壁部（22D）。 橡胶弹性体（22）的分隔壁部分（22D）具有嵌入中间圆筒部件（20）的一对开口（44,46）中的两端部（23），以便从开口（44， 46）朝向外筒构件（16）。

公开(公告)号：US08297602B2

公开(公告)日：2012-10-30

申请号：US11918318

申请日：2006-04-10

申请人： Hiroshi Kojima ,  Yoshitaka Otsubo

发明人： Hiroshi Kojima ,  Yoshitaka Otsubo

IPC分类号： F16F13/00

CPC分类号： F16F13/1463 ,  F16F13/18

摘要： A vibration isolator having a pair of pressure receiving fluid chambers between an outer cylinder and a mounting member, at two end sides along a main amplitude direction. A rubber elastic body changes the internal volumes of the pair of pressure receiving fluid chambers in directions opposite to each other, and fluid flows from the pressure receiving fluid chambers to an auxiliary fluid chamber through one of two orifices and flows from the auxiliary fluid chamber to the pressure receiving fluid chambers through the other orifice. Since a fluid pressure in the auxiliary fluid chamber is kept approximately constant, the fluid in the pair of pressure receiving fluid chambers smoothly flows, with a low resistance, into the auxiliary fluid chamber through the orifices. Therefore, any rise of the fluid pressure in the pressure receiving fluid chambers may be suppressed, such that rise of the dynamic spring constant may be suppressed.

摘要翻译： 一种隔振器，在主振幅方向的两端侧具有在外筒和安装构件之间的一对压力接收流体室。 橡胶弹性体在彼此相反的方向上改变一对压力接收流体室的内部体积，并且流体从压力接收流体室通过两个孔中的一个流入辅助流体室，并从辅助流体室流动到 压力接收流体室通过另一个孔。 由于辅助流体室中的流体压力保持大致恒定，所以一对压力接收流体室中的流体以低阻力平稳地流过辅助流体室通过该孔。 因此，可以抑制压力接收流体室中的流体压力的任何上升，从而可以抑制动态弹簧常数的上升。

公开(公告)号：US20090283945A1

公开(公告)日：2009-11-19

申请号：US12296318

申请日：2007-04-06

申请人： Hiroshi Kojima ,  Yoshitaka Otsubo

发明人： Hiroshi Kojima ,  Yoshitaka Otsubo

IPC分类号： F16F13/18

CPC分类号： F16F13/107 ,  F16F13/18

摘要： A vibration damper with improved durability achieved by preventing stress concentration in a partition wall portion to avoid an excessive increase in strain in that portion. An intermediate cylinder member (20) is fitted to the inner peripheral surface of an outer cylindrical member (16), and a rubber elastic body (22) is arranged between a mounting member (18) and the intermediate cylinder member (20) to elastically connect them. A first and a second hollow cavities are formed in those regions of the rubber elastic body (22) which correspond to regions in the inner peripheral side of a small diameter portion (20B) of the intermediate cylinder member (20). Partition wall portion (22D) for partitioning the hollow cavities from each other are formed in regions of the rubber elastic body (22) between the first and second hollow cavities. The partition wall portion (22D) of the rubber elastic body (22) has both ends (23) fitted into a pair of openings (44, 46) of the intermediate cylinder member (20) so as to project from the openings (44, 46) toward the outer cylinder member (16).

摘要翻译： 通过防止分隔壁部分中的应力集中而避免在该部分中的应变过度增加，从而提高耐久性的减振器。 中间圆筒部件（20）嵌合在外筒部件（16）的内周面上，橡胶弹性体（22）配置在安装部件（18）与中间筒部件（20）之间，弹性地 连接它们 在橡胶弹性体（22）的与中间筒构件（20）的小径部（20B）的内周侧的区域对应的区域，形成有第一和第二中空腔。 在第一和第二中空腔之间的橡胶弹性体（22）的区域中形成用于将中空腔彼此分隔的隔壁部（22D）。 橡胶弹性体（22）的分隔壁部分（22D）具有嵌入中间圆筒部件（20）的一对开口（44,46）中的两端部（23），以便从开口（44， 46）朝向外筒构件（16）。

公开(公告)号：US20090026670A1

公开(公告)日：2009-01-29

申请号：US11664066

申请日：2005-09-29

申请人： Hiroshi Kojima ,  Yoshitaka Otsubo

发明人： Hiroshi Kojima ,  Yoshitaka Otsubo

IPC分类号： F16F13/08 ,  F16F13/10 ,  B60K5/12 ,  F16F5/00

CPC分类号： F16F13/16

摘要： The present invention can effectively attenuate and absorb an auxiliary vibration even in the case that the auxiliary vibration input along a direction approximately orthogonal to a main vibration input along an axial direction of the apparatus, in addition that it is possible to effectively attenuate and absorb the main vibration while suppressing an engagement of a size of the apparatus. In a vibration proofing apparatus (210), two second pressure receiving liquid chambers (302A, 302B) are arranged between an outer tube (224) and a mounting attachment (226), and two second pressure receiving liquid chambers (302A, 302B) are communicated with an auxiliary liquid chamber (272) through two second orifices (308A, 308B). Accordingly, if an auxiliary vibration along an auxiliary amplitude direction orthogonal to an axial direction is input to the mounting attachment (226) from an engine side, a rubber elastic body (222) is elastically deformed along an auxiliary amplitude direction, and expands and contracts an internal volume of the second pressure receiving liquid chambers (302A, 302B), and the liquid circulates in the second pressure receiving liquid chambers (302A, 302B) and the auxiliary liquid chamber (72) with each other through the second orifices (308A, 308B). At this time, since a resonance phenomenon is generated in the liquid circulating between the second pressure receiving liquid chambers (302A, 302B) and the auxiliary liquid chamber (272) through the second orifices (308A, 308B) in synchronization with the input auxiliary vibration, it is possible to particularly effectively absorb a low-frequency vibration input along the auxiliary amplitude direction due to a pressure change, a viscous resistance and the like generated together with the resonance phenomenon of the liquid.

摘要翻译： 即使在辅助振动沿与装置的轴向的主振动输入方向大致正交的方向输入的情况下，本发明也能够有效地衰减和吸收辅助振动，另外，可以有效地衰减和吸收辅助振动 主要振动，同时抑制装置的尺寸的接合。 在防振装置（210）中，在外管（224）和安装附件（226）之间设置有两个第二受压液室（302A，302B），两个第二受压液室（302A，302B） 通过两个第二孔（308A，308B）与辅助液体室（272）连通。 因此，如果沿着与轴向正交的辅助振幅方向的辅助振动从发动机侧输入到安装附件（226），则橡胶弹性体（222）沿辅助振幅方向弹性变形，并且膨胀并收缩 第二压力接收液体室（302A，302B）的内部容积，并且液体通过第二孔口（308A，302B）在第二受压液体室（302A，302B）和辅助液体室（72）中循环， 308B）。 此时，由于与输入的辅助振动同步地通过第二孔（308A，308B）在第二受压液体室（302A，302B）和辅助液体室（272）之间循环的液体中产生共振现象 由于与液体的共振现象一起产生的压力变化，粘性阻力等，可以特别有效地吸收沿着辅助振幅方向的低频振动输入。

公开(公告)号：US08302946B2

公开(公告)日：2012-11-06

申请号：US11664066

申请日：2005-09-29

申请人： Hiroshi Kojima ,  Yoshitaka Otsubo

发明人： Hiroshi Kojima ,  Yoshitaka Otsubo

IPC分类号： F16F5/00

CPC分类号： F16F13/16

摘要： In a vibration proofing apparatus, two second pressure receiving liquid chambers are arranged between an outer tube and a mounting attachment, and are configured to communicate with an auxiliary liquid chamber through two second orifices when an auxiliary vibration along an auxiliary amplitude direction orthogonal to an axial direction is input to the mounting attachment, a rubber elastic body is elastically deformed along an auxiliary amplitude direction, and expands and contracts an internal volume of the second pressure receiving liquid chambers. At this time, since a resonance phenomenon is generated in the liquid circulating between the second pressure receiving liquid chambers and the auxiliary liquid chamber through the second orifices in synchronization with the input auxiliary vibration, a low-frequency vibration input along the auxiliary amplitude direction due to a pressure change, and a viscous resistance generated together with the resonance phenomenon of the liquid is effectively absorbed.

摘要翻译： 在防振装置中，在外管和安装附件之间设置两个第二压力接收液室，并且构造成当沿辅助振动方向的辅助振动与轴向正交时通过两个第二孔连通辅助液室 方向输入到安装附件，橡胶弹性体沿着辅助振幅方向弹性变形，并使第二受压液体室的内部容积膨胀和收缩。 此时，由于与输入的辅助振动同步地通过第二孔与在第二受压液室和辅助液室之间循环的液体产生共振现象，因此沿着辅助振幅方向输入的低频振动 并且与液体的共振现象一起产生的粘性电阻被有效地吸收。

公开(公告)号：US20090026671A1

公开(公告)日：2009-01-29

申请号：US11918318

申请日：2006-04-10

申请人： Hiroshi Kojima ,  Yoshitaka Otsubo

发明人： Hiroshi Kojima ,  Yoshitaka Otsubo

IPC分类号： F16F13/08 ,  B60K5/12 ,  F16F13/10

CPC分类号： F16F13/1463 ,  F16F13/18

摘要： A vibration isolator capable of efficiently increasing damping against inputted vibration provided by a fluid flowing in a restrict passage and also suppressing the rise of a dynamic spring constant when vibration is inputted therein.In the vibration isolator 10, a pair of pressure receiving fluid chambers 46 and 48 are disposed, between an outer cylinder 12 and a mounting member 20, at one end side and at the other end side along a main amplitude direction. Since a rubber elastic body 22 changes the internal volumes of the pair of pressure receiving fluid chambers 46 and 48 in directions opposite to each other, and fluid flows from the pressure receiving fluid chambers 46 and 48 to an auxiliary fluid chamber 30 through one of orifices 62 and 64 and flows from the auxiliary fluid chamber 30 to the pressure receiving fluid chambers 46 and 48 through the other of the orifices 62 and 64. As a result, since a fluid pressure in the auxiliary fluid chamber 30 is kept approximately constant, the fluid in the pair of pressure receiving fluid chambers 46 and 48 smoothly flows, with a low resistance, into the auxiliary fluid chamber 30 through the orifices 62 and 64. Therefore, any rise of the fluid pressure in the pressure receiving fluid chambers 46 and 48 may be suppressed and, accordingly, the rise of the dynamic spring constant may be suppressed.

摘要翻译： 一种隔振器，其能够有效地增加阻碍在由限流通道中流动的流体所产生的输入振动的阻尼，并且还抑制振动输入时的动态弹簧常数的上升。 在隔振器10中，一对受压流体室46,48沿主振幅方向设置在外筒12和安装构件20之间的一端侧和另一端侧。 由于橡胶弹性体22在彼此相反的方向上改变一对压力接收流体室46和48的内部容积，并且流体通过孔中的一个从压力接收流体室46和48流到辅助流体室30 62和64，并且通过孔口62和64中的另一个从辅助流体室30流到压力接收流体室46和48.结果，由于辅助流体室30中的流体压力保持近似恒定， 一对压力接收流体室46和48中的流体通过孔口62和64平滑地流过辅助流体腔室30，因此，压力接收流体腔室46和48中的流体压力的任何上升 可以抑制，因此可以抑制动态弹簧常数的上升。