# US 10,369,875 B2 · Torque rod > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,369,875 B2 - Document ID: US10369875B2 - Status: Granted - Kind: B2 - Application number: 15/768,858 - Filed: 2016-09-09 - Published: 2019-02-21 - Granted: 2019-08-06 - Earliest claimed: 2015-10-28 - Assignees: Bridgestone Corporation - Applicants: Bridgestone Corporation - Inventors: Motohiro Yanagida; Akira Ueki - Web page: https://patentgrep.com/patent/US10369875B2 ## CPC - B60K 5/1208: {Resilient supports (B60K5/1241 - B60K5/1291 take precedence)} - B60K 5/12: Arrangement of engine supports - F16F 1/3849: {Mounting brackets therefor, e.g. stamped steel brackets; Restraining links} - F16F 15/022: {using dampers and springs in combination} - F16F 15/03: using {magnetic or} electromagnetic means (F16F9/53, {F16F15/005} take precedence) - F16F 15/08: with rubber springs {(grommet- or bushing-type resilient mountings F16F1/3732, F16F1/38); with springs made of rubber and metal (arrangement of internal-combustion or jet-propulsion units B60K5/12; mounting of propulsion plants on vessels B63H21/30; mounting of vehicle drivers' cabs B62D33/0604)} - F16F 2230/30: Sealing arrangements - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION ## Abstract There is provided a torque rod (1) in which any one of a partition wall (27) between an interior of a first accommodation portion (15) for accommodating a first elastic bush (11) and an interior of a third accommodation portion (17) for accommodating an actuator (14) and a partition wall (28) between an interior of a second accommodation portion (16) for accommodating a second elastic bush (12) and the interior of the third accommodation portion (17) has a communication hole (29) for allowing the interiors of both the accommodation portions to communicate with each other, and a whole area of the other partition wall is closed. In the communication hole (29), a counterbore (29a) is formed in an end portion on a side opposite to the third accommodation portion (17). The torque rod includes a bolt (30) that is inserted into the communication hole (29), and that has a head portion (30a) accommodated in the counterbore (29a). The bolt (30) is screwed into a support shaft (24) or the communication hole (29) so that the head portion (30a) is pressed against an annular flat surface (29c) which faces a side opposite to the third accommodation portion (17) on an inner surface of the counterbore (29a), and the support shaft (24) is pressed against the partition wall (28). ## Claims ### Claim 1 A torque rod comprising: a first elastic bush connected to a vibration generator; a second elastic bush connected to a vibration receiver; an actuator installed between the first elastic bush and the second elastic bush, the actuator being configured to attenuate and absorb an input vibration by causing a cylindrical movable element to reciprocate so as to move close to or move away from the first elastic bush and the second elastic bush in response to the input vibration; and a case body including a first accommodation portion inside which the first elastic bush is accommodated, a second accommodation portion inside which the second elastic bush is accommodated, and a third accommodation portion installed between the first accommodation portion and the second accommodation portion and inside which the actuator is accommodated, wherein the actuator includes a support shaft extending along a reciprocating direction of the movable element inside the movable element, wherein in the case body, any one of a first partition wall between an interior of the first accommodation portion and an interior of the third accommodation portion and a second partition wall between an interior of the second accommodation portion and the interior of the third accommodation portion has a communication hole that allows the interiors of both the accommodation portions to communicate with each other, and a whole area of the other partition wall is closed, wherein in the communication hole, a counterbore is formed in an end portion on a side opposite to the third accommodation portion, wherein the torque rod further comprises a bolt that is inserted into the communication hole, and that has a head portion accommodated in the counterbore, and wherein the bolt is screwed into the support shaft or the communication hole, the head portion is pressed against an annular flat surface which faces a side opposite to the third accommodation portion on an inner surface of the counterbore, and the support shaft is pressed against the partition wall. ### Claim 2 (depends on 1) The torque rod according to claim 1, wherein a seal portion configured to seal the interior of the third accommodation portion is installed inside the counterbore. ### Claim 3 (depends on 2) The torque rod according to claim 2, wherein a first end surface of the support shaft pressed against the second partition wall in the reciprocating direction has a larger outer diameter than other portions. ### Claim 4 (depends on 3) The torque rod according to claim 3, wherein the bolt is screwed into the support shaft, and wherein the first end surface of the support shaft in the reciprocating direction is pressed against the second partition wall, and a second end surface on a side opposite to the first end surface is not in contact with the first partition wall which is closed. ### Claim 5 (depends on 4) The torque rod according to claim 4, wherein the second partition wall is installed between the interior of the second accommodation portion and the interior of the third accommodation portion. ### Claim 6 (depends on 3) The torque rod according to claim 3, wherein the second partition wall is installed between the interior of the second accommodation portion and the interior of the third accommodation portion. ### Claim 7 (depends on 2) The torque rod according to claim 2, wherein the bolt is screwed into the support shaft, and wherein a first end surface of the support shaft in the reciprocating direction is pressed against the second partition wall, and a second end surface on a side opposite to the first end surface is not in contact with the first partition wall which is closed. ### Claim 8 (depends on 7) The torque rod according to claim 7, wherein the second partition wall is installed between the interior of the second accommodation portion and the interior of the third accommodation portion. ### Claim 9 (depends on 2) The torque rod according to claim 2, wherein the second partition wall is installed between the interior of the second accommodation portion and the interior of the third accommodation portion. ### Claim 10 (depends on 1) The torque rod according to claim 1, wherein a first end surface of the support shaft pressed against the second partition wall in the reciprocating direction has a larger outer diameter than other portions. ### Claim 11 (depends on 10) The torque rod according to claim 10, wherein the bolt is screwed into the support shaft, and wherein the first end surface of the support shaft in the reciprocating direction is pressed against the second partition wall, and a second end surface on a side opposite to the first end surface is not in contact with the first partition wall which is closed. ### Claim 12 (depends on 11) The torque rod according to claim 11, wherein the second partition wall is installed between the interior of the second accommodation portion and the interior of the third accommodation portion. ### Claim 13 (depends on 10) The torque rod according to claim 10, wherein the second partition wall is installed between the interior of the second accommodation portion and the interior of the third accommodation portion. ### Claim 14 (depends on 1) The torque rod according to claim 1, wherein the bolt is screwed into the support shaft, and wherein a first end surface of the support shaft in the reciprocating direction is pressed against the second partition wall, and a second end surface on a side opposite to the first end surface is not in contact with the first partition wall which is closed. ### Claim 15 (depends on 14) The torque rod according to claim 14, wherein the second partition wall is installed between the interior of the second accommodation portion and the interior of the third accommodation portion. ### Claim 16 (depends on 1) The torque rod according to claim 1, wherein the second partition wall is installed between the interior of the second accommodation portion and the interior of the third accommodation portion.