Vibration reduction device for vehicle seat

Patent metadata

Field	Value
Publication number	US-2018257522-A1
Application number	US-201715825940-A
Country	US
Kind code	A1
Filing date	Nov 29, 2017
Priority date	Mar 8, 2017
Publication date	Sep 13, 2018
Grant date	—

Abstract

A vibration reduction device for a vehicle seat that can reduce forward/backward vibration when the vehicle is stopped with the engine idling. The vibration reduction device includes a weight mounted through an elastic body in the seat back or the headrest of the seat.

First claim

What is claimed is:

1 . A vibration reduction device for a vehicle seat, wherein a weight having a predetermined weight is mounted on a frame of the seat in a vehicle to be able to swing forward/backward in the vehicle through an elastic bracket that can elastically bend, so when the weight swings, the elastic bracket reduces forward/backward vibration of the seat by bending forward/backward.

2 . The vibration reduction device of claim 1 , wherein the frame is a seatback top frame or a headrest frame.

3 . The vibration reduction device of claim 1 , wherein when the vehicle is stopped with an engine idling, the weight swings and the elastic bracket reduces forward/backward vibration of the seat by bending forward/backward.

4 . The vibration reduction device of claim 2 , wherein when the weight is mounted on the seatback top frame, only the upper end of the weight is bonded to the bottom of the elastic bracket.

5 . The vibration reduction device of claim 4 , wherein the elastic bracket is disposed in a space surrounded by the seatback top frame.

6 . The vibration reduction device of claim 5 , wherein the top of the elastic bracket is bonded to a horizontal portion of the seatback top frame surrounding an upper end of the space.

7 . The vibration reduction device of claim 4 , wherein the weight is not fixed to any part except for the upper end being bonded in the elastic bracket to be swung forward/backward in the opposite direction to vibration of the seat by inertia when the seat vibrates forward/backward.

8 . The vibration reduction device of claim 4 , wherein the weight is mounted on the seatback top frame to be positioned in any one of an upper space and a lower space of the seatback top frame or in the upper space and the lower space.

9 . The vibration reduction device of claim 2 , wherein when the weight is mounted on the headrest frame, only the lower end of the weight is bonded to the top of the elastic bracket.

10 . The vibration reduction device of claim 9 , wherein the elastic bracket is bonded to a lower cross member of the headrest frame to be positioned in a space formed between a front frame and a rear frame of the headrest frame.

11 . The vibration reduction device of claim 9 , wherein the weight is not fixed to any part except for the lower end being bonded in the elastic bracket to be swung forward/backward in the opposite direction to vibration of the seat by inertia when the seat vibrates forward/backward.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp
• Hyundai Dymos Inc

Inventors

• Won Tae Hee
• Kim Gil Ju
• Jung Chan Ho
• An Sung Chol
• Seo Jin Ho
• Hyun Young Min

Classifications

• B60N2002/899

  characterised by structural or mechanical details not otherwise provided for · CPC title

• B60N2/503

  attached to the backrest (B60N2/504 takes precedence) · CPC title

• B60N2/90 Primary

  Details or parts not otherwise provided for · CPC title

• B60N2205/20

  Measures for elimination or compensation of play or backlash · CPC title

• F16F7/116

  on metal springs · CPC title