Vibration reduction device for vehicle seat

Patent metadata

Field	Value
Publication number	US-10399469-B2
Application number	US-201715825940-A
Country	US
Kind code	B2
Filing date	Nov 29, 2017
Priority date	Mar 8, 2017
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

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 a 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,
wherein the elastic bracket is a panel repeatedly and alternately bent several times to have a plurality of U-shaped panels arranged alternate to each other.

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 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.

4. The vibration reduction device of claim 3 , wherein the elastic bracket is disposed in a space surrounded by the seatback top frame.

5. The vibration reduction device of claim 4 , wherein the top of the elastic bracket is bonded to a horizontal portion of the seatback top frame surrounding the upper end of the space.

6. The vibration reduction device of claim 3 , wherein the weight is not fixed to any part except for the upper end being bonded to 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.

7. The vibration reduction device of claim 3 , 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.

8. 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.

9. The vibration reduction device of claim 8 , 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.

10. The vibration reduction device of claim 8 , 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.

11. 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.

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

• F16F7/116

  on metal springs · CPC title

• B60N2/503

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

• B60N2002/899

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

• B60N2/80

  Head-rests · CPC title

• B60N2205/20

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