Fore-aft vibration isolator

• US 8,800,976 B2
• Filed: 01/21/2011
• Issued: 08/12/2014
• Est. Priority Date: 01/21/2011
• Status: Active Grant

• Current Assignee: CVG Management Corporation (Commercial Vehicle Group Incorporated)
• Original Assignee: CVG Management Corporation (Commercial Vehicle Group Incorporated)
• Inventors: Bethina, Raju, Sharda, Anurag, Schultz, Andrew
• Primary Examiner(s): Siconolfi, Robert A
• Assistant Examiner(s): POON, CHARLES YULUNG
• Application Number:
  US13/011,421
• Publication Number:
  US 20120187614A1
• Time in Patent Office: 1,299 Days
• Field of Search: 267/70, 267/72, 267/140.11, 267/286, 267/289, 267/131, 267/166, 267/169, 267/170, 267/174, 297/344.15, 297/344.16, 297/344.17, 248/421
• US Class Current: 267/131
• CPC Class Codes: B60N 2/502 attached to the base of the seat B60N2/504 takes precedence
• CPC Class Codes: B60N 2/508 Scissors-like structure
• CPC Class Codes: B60N 2/509 Seat guided by slides or the like
• CPC Class Codes: B60N 2/544 Compression or tension springs B60N2/542 takes precedence
• CPC Class Codes: F16F 2226/04 Assembly or fixing methods; methods to form or fashion parts
• CPC Class Codes: F16F 3/04 composed only of wound springs
• CPC Class Codes: Y10T 29/49611 for vehicle or clutch

Abstract

A vehicle seating system includes a top frame for mounting to a vehicle seat. The top frame has integral rails or channels with roller tracks at one end and vibration dampening systems at the other. An opposing pair of the roller tracks includes a vibratory dampening or regulation system that controls the amount of fore and aft travel of the top frame.

Claims

1. A system that facilitates vibratory dampening, comprising:

a connector block configured to fixedly connect to a cross-member, wherein the cross-member is in communication with a seat assembly, and wherein the connector block travels linearly within a channel of a seat mounting frame in synchronization with the seat assembly; and

a pair of compression mechanisms, each of the compression mechanisms having an inner and an outer end, wherein the inner end of each of the compression members is attached to opposite ends of the connector block;

,

a pair of alignment mechanisms for aligning the pair of compression mechanisms and the connector block within the channel of the seat mounting frame, wherein the outer end of each compression member is attached to a respective alignment mechanism, wherein the connector block is attached to the alignment mechanisms only through the compression members, and wherein the connector block and the pair of compression mechanisms are configured to dampen linear vibration upon being installed within the channel of the seat mounting frame.

2. The system of claim 1, the linear vibrations are fore-aft vibrations.

3. The system of claim 1, wherein each of the compression mechanisms are coiled springs.

4. The system of claim 1, further comprising at least one stop that retains at the least one of the compression mechanism at a point opposite the connector block.

5. The system of claim 1, wherein each alignment mechanism includes a male portion partially extending into an interior of the outer end of each of the compression mechanisms, and wherein the alignment mechanisms are attached to the compression mechanisms only by the male portion.

6. The system of claim 1, further comprising an adjustment means that enables adjustment of at the at least one compression mechanism, wherein the adjustment means comprises a repositionable fastener and whereby the adjustment compensates for one of occupant weight or strength of vibration.

7. The system of claim 1, further comprising a second system that facilitates vibratory dampening, wherein the second system is positioned with a second channel that is opposite the channel, and wherein the second system is fixedly connected to the cross-member.

8. The system of claim 1, further comprising a latching mechanism configured to lock the vibratory dampening system in a stationary position.

9. The system of claim 8, further comprising a control mechanism that facilitates operation of the latching mechanism.

10. The system of claim 9, wherein the control mechanism is a cable that pivots the latching mechanism to at least one of engage or disengage the latching mechanism upon a post integral to the cross member.

11. A system that dampens fore-aft vibrations, comprising:

a seat assembly attached to a platform, wherein the platform includes at least one cross-member that traverses a width of the platform, and wherein the cross-member traverses in a linear direction within a track; and

a coil assembly that dampens fore-aft vibrations transferring into the platform, wherein the coil assembly is fixedly attached to the cross-member and wherein the coil assembly includes i) a pair of spring mechanisms attached to a connector block positioned between the pair of spring mechanisms, and ii) a pair of alignment mechanisms that align the spring mechanisms within the track, wherein the connector block is attached to the alignment mechanisms only through the spring mechanisms.

12. The system of claim 11, further comprising a latching mechanism that one of locks or unlocks the cross-member to control linear motion of the cross member within the track.

13. The system of claim 12, further comprising a cable assembly that facilitates remote operation of the latching mechanism.

14. The system of claim 11, further comprising a stop mechanism and a repositionable fastener for adjusting tension of the coil assembly.

20. The system of claim 11, wherein each of the pair of alignment mechanisms that align the spring mechanisms within the track includes a male portion partially extending into an interior of each of the spring mechanisms, and wherein the alignment mechanisms are attached to the spring mechanisms only by the male portion.

15. A method for controlling fore-aft vibrations in a seat assembly, comprising:

positioning a connector block in a channel of a seat mounting frame;

positioning a pair of spring mechanisms within the channel, wherein a first end of one spring mechanism is attached to one side of the connector block and a first end of the other spring mechanism is attached to the other side of the connector block;

aligning the pair of spring mechanisms and the connector block within the channel of the seat mounting frame, wherein a second end of one spring mechanism is attached to a first alignment mechanism and a second end of the other spring mechanism is attached to a second alignment mechanism, and wherein the connector block is attached to the alignment mechanisms only through the spring mechanisms;

attaching the connector block to a cross-member that moves in synchronization with the seat assembly on a parallel plane with the channel; and

dampening the fore-aft vibrations via compensation of the pair of spring mechanisms.

16. The method of claim 15, further comprising adjusting compression of at least one of the pair of spring mechanisms.

17. The method of claim 15, further comprising selectively latching or unlatching a post that is connected to the cross-member, wherein the act of selectively unlatching permits linear motion of the cross-member.

18. The method of claim 15, wherein the act of selectively latching restricts linear motion of the cross-member.

19. The method of claim 15, further comprising one of limiting or adjusting travel distance of the connector block within the channel.