# US 2017/0284501 A1 · Liquid-sealed vibration damping device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0284501 A1 - Document ID: US20170284501A1 - Status: Published application - Kind: A1 - Application number: 15/474,537 - Filed: 2017-03-30 - Published: 2017-10-05 - Earliest claimed: 2016-03-31 - Assignees: Yamashita Rubber Kabushiki Kaisha - Applicants: Yamashita Rubber Co., Ltd. - Inventors: Hirokazu Kadowaki - Web page: https://patentgrep.com/patent/US20170284501A1 ## CPC - F16F 13/10: the wall being at least in part formed by a flexible membrane or the like (F16F13/14 - F16F13/18 take precedence) - B60K 5/1208: {Resilient supports (B60K5/1241 - B60K5/1291 take precedence)} - F16F 13/103: {characterised by method of assembly, production or treatment} - F16F 15/022: {using dampers and springs in combination} - F16F 2226/041: Clipping - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION - 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 ## Abstract A liquid-sealed vibration damping device is provided that allows an outer cylindrical member to have a substantially uniform interference margin in the circumferential direction, while improving an assembling property. A second mounting member mounted on a non-vibration source includes: a first frame in a cylindrical shape that is connected to a lower portion of an insulator; a second frame in a cylindrical shape that holds a partition member arranged below the insulator; and a connector that connects the first frame with the second frame. The connector includes: engaging parts that are arranged on the first frame; and elastic hook parts that are arranged on the second frame. The elastic hook parts are arranged at intervals on each of main frame parts in the circumferential direction thereof, and the elastic hook parts arranged on corners have lower rigidity than those arranged on the main frame parts. ## Claims ### Claim 1 A liquid-sealed vibration damping device comprising: a first mounting member that is mounted on a vibration source; a second mounting member that is mounted on a non-vibration source; and an insulator that is interposed between the first and second mounting members, wherein the second mounting member includes: a first frame in a cylindrical shape that is connected to a lower portion of the insulator; a second frame in a cylindrical shape that holds a partition member which is arranged below the insulator; and a connector that connects the first frame with the second frame, wherein the connector includes: engaging parts that are arranged on either one of the first and second frames; and elastic hook parts that are arranged on the other one of the first and second frames to engage with the engaging parts, and the first or second frame, which is arranged with the elastic hook parts, includes: a pair of main frame parts in a linear shape that faces each other; and a pair of side frame parts that connects ends of the main frame parts, wherein the elastic hook parts are arranged at intervals on each of the main frame parts in the circumferential direction of the said first or second frame, and are also arranged on corners between the main frame parts and the side frame parts, wherein the elastic hook parts arranged on the corners have lower rigidity than those arranged on the main frame parts. ### Claim 2 (depends on 1) The liquid-sealed vibration damping device according to claim 1, wherein the elastic hook part includes: a leg part that extends toward the engaging part; and a tip part that is arranged at a tip of the leg part and engaged with the engaging part, and the elastic hook part having low rigidity is formed to have a longer leg part than that having higher rigidity. ### Claim 3 (depends on 1) The liquid-sealed vibration damping device according to claim 1, wherein the elastic hook part having low rigidity is formed thinner than that having higher rigidity. ### Claim 4 A liquid-sealed vibration damping device comprising: a first mounting member that is mounted on a vibration source; a second mounting member as an outer cylindrical member that is mounted on a non-vibration source; and an insulator that is interposed between the first and second mounting members, wherein the second mounting member includes: a first frame in a cylindrical shape that is connected to a lower portion of the insulator; a second frame in a cylindrical shape that holds a partition member which is arranged below the insulator; and a connector that connects the first frame with the second frame, wherein the connector includes: engaging parts that are arranged on either one of the first and second frames; and elastic hook parts that are arranged on the other one of the first and second frames to engage with the engaging parts, and the first or second frame, which is arranged with the elastic hook parts, includes: a pair of main frame parts in a linear shape that faces each other; and a pair of side frame parts that connects ends of the main frame parts, wherein the elastic hook parts are arranged at intervals on each of the main frame parts in the circumferential direction of the said first or second frame, and among the elastic hook parts, the elastic hook parts arranged at the ends of the main frames have lower rigidity than those arranged at positions away from the ends. ### Claim 5 (depends on 4) The liquid-sealed vibration damping device according to claim 4, wherein the elastic hook part includes: a leg part that extends toward the engaging part; and a tip part that is arranged at a tip of the leg part and engaged with the engaging part, and the elastic hook part having low rigidity is formed to have a longer leg part than that having higher rigidity. ### Claim 6 (depends on 4) The liquid-sealed vibration damping device according to claim 4, wherein the elastic hook part having low rigidity is formed thinner than that having higher rigidity. ### Claim 7 A liquid-sealed vibration damping device comprising: a first mounting member that is mounted on a vibration source; a second mounting member as an outer cylindrical member that is mounted on a non-vibration source; and an insulator that is interposed between the first and second mounting members, wherein the second mounting member includes: a first frame in a cylindrical shape that is connected to a lower portion of the insulator; a second frame in a cylindrical shape that holds a partition member which is arranged below the insulator; and a connector that connects the first frame with the second frame, wherein the connector includes: engaging parts that are arranged on either one of the first and second frames; and elastic hook parts that are arranged on the other one of the first and second frames to engage with the engaging parts, and the first or second frame, which is arranged with the elastic hook parts, includes: a low rigidity part having low rigidity; and a high rigidity part having high rigidity than the low rigidity part, wherein the elastic hook parts are arranged at intervals on the said first or second frame, which is arranged with the elastic hook parts, in the circumferential direction thereof, and the elastic hook parts arranged on the high rigidity part have lower rigidity than those arranged on the low rigidity part. ### Claim 8 (depends on 7) The liquid-sealed vibration damping device according to claim 7, wherein the elastic hook part includes: a leg part that extends toward the engaging part; and a tip part that is arranged at a tip of the leg part and engaged with the engaging part, and the elastic hook part having low rigidity is formed to have a longer leg part than that having higher rigidity. ### Claim 9 (depends on 7) The liquid-sealed vibration damping device according to claim 7, wherein the elastic hook part having low rigidity is formed thinner than that having higher rigidity.