Patents Assigned to DAEHEUNG RUBBER & TECHNOLOGY CO., LTD.
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Patent number: 11760186Abstract: Proposed is a rubber bush type vibration damping device for a vehicle, which solves the problem of vibration increase which may occur in the natural frequency of the vibration damping device by changing the shapes of an inner coupling part or an outer coupling part and by using difference in the lengths of rubber insulators due to the changing of the shapes thereof. The vibration damping device includes an inner coupling part, an outer coupling part, and a plurality of rubber insulators having have different natural frequency.Type: GrantFiled: April 8, 2021Date of Patent: September 19, 2023Assignee: DAEHEUNG RUBBER & TECHNOLOGY CO., LTD.Inventors: Hee Ho Cho, Jun Bok Kang
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Patent number: 11390153Abstract: Proposed is a vibration damping device for a vehicle as an engine mount for a vehicle, wherein the vibration damping device solves the problem of vibration increase which may occur in the natural frequency of a rubber insulator by allowing the rubber insulator to have a plurality of unit insulation bodies having different natural frequencies, wherein the vibration damping device for a vehicle includes a center core, and the rubber insulator having an insulation body provided between the center core and a cylindrical casing, wherein the insulation body includes a plurality of separation grooves formed therein to have shapes extending in radial directions such that the insulation body is divided into a plurality of unit insulation bodies along a circumferential direction of the insulation body.Type: GrantFiled: April 8, 2021Date of Patent: July 19, 2022Assignee: DAEHEUNG RUBBER & TECHNOLOGY CO., LTD.Inventors: Hee Ho Cho, Jun Bok Kang
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Publication number: 20220153114Abstract: Proposed is a vibration damping device for a vehicle as an engine mount for a vehicle, wherein the vibration damping device solves the problem of vibration increase which may occur in the natural frequency of a rubber insulator by allowing the rubber insulator to have a plurality of unit insulation bodies having different natural frequencies, wherein the vibration damping device for a vehicle includes a center core, and the rubber insulator having an insulation body provided between the center core and a cylindrical casing, wherein the insulation body includes a plurality of separation grooves formed therein to have shapes extending in radial directions such that the insulation body is divided into a plurality of unit insulation bodies along a circumferential direction of the insulation body.Type: ApplicationFiled: April 8, 2021Publication date: May 19, 2022Applicant: DAEHEUNG RUBBER & TECHNOLOGY CO., LTD.Inventors: Hee Ho CHO, Jun Bok KANG
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Publication number: 20220063392Abstract: Proposed is a rubber bush type vibration damping device for a vehicle, which solves the problem of vibration increase which may occur in the natural frequency of the vibration damping device by changing the shapes of an inner coupling part or an outer coupling part and by using difference in the lengths of rubber insulators due to the changing of the shapes thereof. The vibration damping device includes an inner coupling part, an outer coupling part, and a plurality of rubber insulators having have different natural frequency.Type: ApplicationFiled: April 8, 2021Publication date: March 3, 2022Applicant: DAEHEUNG RUBBER & TECHNOLOGY CO., LTD.Inventors: Hee Ho CHO, Jun Bok KANG
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Patent number: 10598245Abstract: A dynamic damper for a vehicle, includes: a mass; a first bolt including a first bolt head and a first bolt body; a first elastic portion having one portion flexibly bonded to the first bolt head of the first bolt and the other portion flexibly bonded to the mass; a second bolt including a second bolt head and a second bolt body; a second elastic portion having one portion flexibly bonded to the second bolt head of the second bolt and the other portion flexibly bonded to the mass; a first bracket including a first bolt-coupling plate; a first nut screw-engaged with the first bolt body of the first bolt; a second bracket comprising a second bolt-coupling plate extending in a top-bottom direction; and a second nut screw-engaged with the second bolt body of the second bolt to couple the second bolt to the second bolt-coupling plate.Type: GrantFiled: July 19, 2018Date of Patent: March 24, 2020Assignee: DAEHEUNG RUBBER & TECHNOLOGY CO., LTD.Inventors: Hyun Chul Sohn, Shin Won Lee, Seong-Hoo Park
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Publication number: 20190360549Abstract: A dynamic damper for a vehicle, includes: a mass; a first bolt including a first bolt head and a first bolt body; a first elastic portion having one portion flexibly bonded to the first bolt head of the first bolt and the other portion flexibly bonded to the mass; a second bolt including a second bolt head and a second bolt body; a second elastic portion having one portion flexibly bonded to the second bolt head of the second bolt and the other portion flexibly bonded to the mass; a first bracket including a first bolt-coupling plate; a first nut screw-engaged with the first bolt body of the first bolt; a second bracket comprising a second bolt-coupling plate extending in a top-bottom direction; and a second nut screw-engaged with the second bolt body of the second bolt to couple the second bolt to the second bolt-coupling plate.Type: ApplicationFiled: July 19, 2018Publication date: November 28, 2019Applicant: DAEHEUNG RUBBER & TECHNOLOGY CO., LTD.Inventors: Hyun Chul SOHN, Shin Won LEE, Seong-Hoo PARK
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Patent number: 9447833Abstract: Disclosed herein is a dynamic damper that can reduce vibrations with respect to not only the axial direction but also the radial direction of a connector connected to a vibration generating source.Type: GrantFiled: February 24, 2015Date of Patent: September 20, 2016Assignee: DAEHEUNG RUBBER & TECHNOLOGY CO., LTD.Inventors: Sang Hyun Choi, Hyun Chul Sohn, Shin Won Lee