Steering device

• US 20060243084A1
• Filed: 04/04/2006
• Published: 11/02/2006
• Est. Priority Date: 04/18/2005
• Status: Active Grant

• Current Assignee: Yamada Manufacturing Company Limited (Fujimak Corporation)
• Original Assignee: Yamada Manufacturing Company Limited (Fujimak Corporation)
• Inventors: Imai, Masayuki, Osawa, Toshihito
• Granted Patent: US 7,735,391 B2
• Time in Patent Office: Days
• US Class Current: 74/484.R
• CPC Class Codes: B62D 1/184 Mechanisms for locking columns at selected positions
• CPC Class Codes: Y10T 74/20256 Steering and controls assemblies

Abstract

To provide a steering device for tilt and telescopic adjustments in which the locked condition can be made stronger, and when unlocked, tilt and telescopic adjustment can be smoothly carried out. A steering device, comprising: a fixed bracket having fixed side parts on both sides in the width direction; a movable bracket arranged between the fixed side parts; a friction plate fixed and oppositely arranged with a suitable gap with respect to at least one of the two fixed side parts of the fixed bracket; and a friction washer that is inserted between the fixed side part and the friction plate. A lock bolt passes through for connecting the fixed bracket, the movable bracket, the friction plate, and the friction washer to be freely locked and unlocked.

Claims

1. A steering device, comprising:

a fixed bracket having fixed side parts on both sides in the width direction;

a movable bracket arranged between the fixed side parts;

a friction plate fixed and oppositely arranged with a suitable gap with respect to at least one of the two fixed side parts of the fixed bracket; and

a friction washer that is inserted between the fixed side part and the friction plate, wherein

a lock bolt passes through for connecting the fixed bracket, the movable bracket, the friction plate, and the friction washer to be freely locked and unlocked.

2. The steering device according to claim 1, wherein the part of the friction plate below the position of fixing separates elastically from the fixed side part when the lock is released by the lock bolt.

3. The steering device according to claim 1, wherein the upper edge of the friction plate is mated and fixed to the upper part of the fixed side part.

4. The steering device according to claim 1, wherein the plate thickness of the friction plate is thinner than the plate thickness of the fixed bracket.

5. The steering device according to claim 1, wherein the friction plate and the friction washer are provided on both fixed side parts of the fixed bracket.

6. The steering device according to claim 1, further comprising a collar member provided between the two movable side parts of the movable bracket.

7. The steering device according to claim 1, wherein one or a positioning projection is formed in the friction plate to correctly position the friction washer.

8. The steering device according to claim 1, wherein a washer is arranged on the outer surface of the friction plate, so that the friction plate is sandwiched between the friction washer and the washer.

9. The steering device according to claim 2, wherein the upper edge of the friction plate is mated and fixed to the upper part of the fixed side part.

10. The steering device according to claim 2, wherein the plate thickness of the friction plate is thinner than the plate thickness of the fixed bracket.

11. The steering device according to claim 3, wherein the plate thickness of the friction plate is thinner than the plate thickness of the fixed bracket.

12. The steering device according to claim 2, wherein the friction plate and the friction washer are provided on both fixed side parts of the fixed bracket.

13. The steering device according to claim 3, wherein the friction plate and the friction washer are provided on both fixed side parts of the fixed bracket.

14. The steering device according to claim 4, wherein the friction plate and the friction washer are provided on both fixed side parts of the fixed bracket.

15. The steering device according to claim 2, further comprising a collar member provided between the two movable side parts of the movable bracket.

16. The steering device according to claim 3, further comprising a collar member provided between the two movable side parts of the movable bracket.

17. The steering device according to claim 2, wherein one or a positioning projection is formed in the friction plate to correctly position the friction washer.

18. The steering device according to claim 3, wherein one or a positioning projection is formed in the friction plate to correctly position the friction washer.

19. The steering device according to claim 2, wherein a washer is arranged on the outer surface of the friction plate, so that the friction plate is sandwiched between the friction washer and the washer.

20. The steering device according to claim 3, wherein a washer is arranged on the outer surface of the friction plate, so that the friction plate is sandwiched between the friction washer and the washer.