# US 12,110,939 B2 · Anti-vibration device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,110,939 B2 - Document ID: US12110939B2 - Status: Granted - Kind: B2 - Application number: 17/802,056 - Filed: 2021-01-12 - Published: 2023-03-23 - Granted: 2024-10-08 - Earliest claimed: 2020-02-24 - Assignees: Ls Electric Co., Ltd. - Applicants: Ls Electric Co., Ltd. - Inventors: Kyung Min Kim - Web page: https://patentgrep.com/patent/US12110939B2 ## CPC - F16F 15/04: using elastic means (single elements or their attachment F16F1/00 - F16F13/00); {(F16F15/023, F16F15/03 take precedence)} - H02M 7/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections} - F16F 3/0873: {of the same material or the material not being specified} - 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)} - H02M 7/44: by static converters - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION - H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P) ## Abstract Disclosed is an anti-vibration device. An anti-vibration device according to the embodiment of the present disclosure reduces vibration between an object and an installation surface on which the object is installed, and the anti-vibration device includes a first elastic member, a first support member disposed to cover the first elastic member and fastened to the first elastic member, a second elastic member disposed on an upper portion of the first support member, and a second support member disposed to cover the second elastic member and fastened to the first support member. ## Claims ### Claim 1 An anti-vibration device, which reduces vibration between an object and an installation surface on which the object is installed, the anti-vibration device comprising: a first elastic member; a first support member disposed to cover the first elastic member and fastened to the first elastic member; a second elastic member disposed on an upper portion of the first support member; and a second support member disposed to cover the second elastic member and fastened to the first support member, wherein only a part of an outer surface of the first elastic member is in contact with the first support member such that a space is formed between the first elastic member and the first support member, wherein the first support member comprises: a first cover plate configured to support an upper surface of the first elastic member and fastened to the first elastic member; wherein the second support member comprises: a second cover plate configured to support an upper surface of the second elastic member; and a second sidewall connected to a lower portion of the second cover plate and configured to cover a lateral surface of the second elastic member, wherein the first cover plate, the first elastic member, the second cover plate, and the second elastic member each have a through-hole provided in a central portion thereof, the anti-vibration device further comprises a first nut inserted into the through-hole of the first elastic member and having a flange configured to support a lower surface of the first elastic member, and the second cover plate, the second elastic member, the first cover plate, and the first elastic member are fastened to one another by a bolt coupled to the first nut while penetrating the second cover plate, the second elastic member, the first cover plate, and the first elastic member, and a second nut provided between the first cover plate and the second cover plate, disposed in the through-hole of the second elastic member, and fastened to the bolt. ### Claim 2 (depends on 1) The anti-vibration device of claim 1, wherein the first support member comprises: a first sidewall connected to a lower portion of the first cover plate and configured to allow the first elastic member to be spaced apart from the installation surface at a predetermined height, the first sidewall being configured to cover a lateral surface of the first elastic member; and a fastening plate connected outward from a lower end of the first sidewall so as to be fastened to the installation surface. ### Claim 3 (depends on 2) The anti-vibration device of claim 2, wherein the second support member comprises: a second sidewall connected to a lower portion of the second cover plate and configured to cover a lateral surface of the second elastic member. ### Claim 4 (depends on 3) The anti-vibration device of claim 3, wherein the first and second cover plates each have a circular shape, and the first and second sidewalls each have a cylindrical shape. ### Claim 5 (depends on 4) The anti-vibration device of claim 4, wherein the fastening plate is connected to two opposite sides of the first sidewall and formed to be vertically symmetric outward in a radial direction. ### Claim 6 (depends on 4) The anti-vibration device of claim 4, wherein the fastening plate is connected to the first sidewall while defining a triangular shape outward in a radial direction. ### Claim 7 (depends on 1) The anti-vibration device of claim 1, wherein only a part of an outer surface of the second elastic member is in contact with the first and second support members such that a space is formed between the second elastic member and one of or both the first and second support members. ### Claim 8 (depends on 1) The anti-vibration device of claim 1, wherein one of or both the first and second elastic members includes a recessed portion recessed inward.