Seat in particular a vehicle seat preferably an aeroplane seat

• US 7,100,985 B2
• Filed: 02/08/2002
• Issued: 09/05/2006
• Est. Priority Date: 02/16/2001
• Status: Expired due to Fees

• Current Assignee: Recaro Aircraft Seating GmbH & Company
• Original Assignee: Recaro Aircraft Seating GmbH & Company
• Inventors: Wagner, Wolfgang, Baumann, Jurgen
• Primary Examiner(s): Brown, Peter R.
• Application Number:
  US10/250,827
• Publication Number:
  US 20040051363A1
• Time in Patent Office: 1,670 Days
• Field of Search: 297/362.11, 297/354.1, 297/361.1, 297/300.1, 297/300.2
• US Class Current: 297/362.11
• CPC Class Codes: B60N 2/0224 Non-manual adjustments, e.g. with electrical operation
• CPC Class Codes: B60N 2/02246 Electric motors therefor
• CPC Class Codes: B60N 2/0252 with relations between different adjustments, e.g. height of headrest following longitudinal position of seat
• CPC Class Codes: B60N 2/23 by linear actuators, e.g. linear screw mechanisms
• CPC Class Codes: B64D 11/0619 with energy absorbing means specially adapted for mitigating impact loads for passenger seats, e.g. at a crash
• CPC Class Codes: B64D 11/06395 characterised by the arrangement of electric motors for adjustment
• CPC Class Codes: B64D 11/064 Adjustable inclination or position of seats
• CPC Class Codes: B64D 11/0643 Adjustable foot or leg rests
• CPC Class Codes: B64D 11/0696 Means for fastening seats to floors, e.g. to floor rails

Abstract

A seat includes a first seat piece (10) and a further seat piece (12), which may be adjusted for inclination by a controllable operating device (14). The operating device (14) engages the further seat piece (12) by at least two adjusters (30), which are moved by a common drive mechanism (34) with a mechanical coupling (36) between the adjusters (30), for an effectively uniform motion. A uniform inclination adjustment of the further seat piece, such as backrest and/or leg rest is achieved. The drive includes an actuator device with a longitudinally displaceable operating piece (40), engaged with a rocker (44), connected to an adjuster piece (30) and operating the mechanical coupling (36), with a further rocker (46), for the other adjuster (30).

Claims

1. A seat, comprising:

a seat frame;

a first seat part mounted on said seat frame;

a second seat part coupled to said first seat part for tilt adjustment; and

an actuating device coupled to and adjusting tilt positions of said second seat part, said actuating device having at least first and second adjustment parts engaging said second part, having a common drive mechanism coupled to said adjustment parts for uniformly moving said adjustment parts and having a mechanical coupling acting between said adjustment parts, said common drive mechanism including an actuator with a longitudinally displaceable activating part engaging a first angle drive coupled to said first adjustment part and including a second angle drive coupled to said first angle drive by said mechanical coupling for activating said second angle drive, said second angle drive being coupled to said second adjustment part, each of said angle drives having first and second arms with said first arm thereof coupled to the respective adjustment part and with said second arm thereof having an engagement point coupled to said mechanical coupling, each of said angle drives including a pivot point between said first and second arms thereof pivotally coupling the respective angle drive to said seat frame.

2. A seat according to claim 1 wherein

said mechanical coupling comprises a rigid structural component pivotally coupled to said first and second angle drives.

3. A seat according to claim 1 wherein

an activator housing is rigidly connected to said seat frame.

4. A seat according to claim 1 wherein

an activator housing is coupled to said second angle drive.

5. A seat according to claim 1 wherein

said mechanical coupling comprises a coupling rod engaging said second arms of said first and second angle drives, one end of said coupling rod engages said first angle drive between said engagement point and said pivot point thereof.

6. A seat according to claim 1 wherein

said pivot points are located on a common crosspiece of said seat frame, said crosspiece extending parallel to an axis extending longitudinally through said actuator and transversely to two side walls of said seat frame, said adjustment parts extending along said side walls.

7. A seat according to claim 6 wherein

said adjustment parts comprise adjustment rods having first free ends engaging said angle drives and second free ends engaging fitting parts extending at least partially along longitudinal sides of said second seat part.

8. A seat according to claim 7 wherein

said second seat part is a backrest.

9. A seat according to claim 7 wherein

said actuator extends between said common crosspiece and another crosspiece of said seat frame, and includes a drive motor.

10. A seat according to claim 6 wherein

said actuator extends between said common crosspiece and another crosspiece of said seat frame, and includes a drive motor.

11. A seat according to claim 10 wherein

said second seat part is a backrest.

12. A seat according to claim 1 wherein

the seat is a vehicle seat.

13. A seat according to claim 1 wherein

the seat is an aircraft passenger seat.

14. A seat according to claim 1 wherein

said second seat part comprises a backrest.

15. A seat according to claim 1 wherein

each of said adjustment parts have opposite ends pivotally coupled to said second seat part and to one of said angle drives.

16. A seat according to claim 1 wherein

said activating part is pivotally coupled to said first angle drive.