Tilt telescopic steering device

• US 20090066070A1
• Filed: 08/19/2008
• Published: 03/12/2009
• Est. Priority Date: 09/07/2007
• Status: Active Grant

• Current Assignee: Yamada Manufacturing Company Limited (Fujimak Corporation), Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Yamada Manufacturing Company Limited (Fujimak Corporation), Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Ueno, Osamu, Takakusaki, Minoru, Furuhashi, Takahiro, Osawa, Toshihito, Takezawa, Naoyuki
• Granted Patent: US 7,954,852 B2
• Time in Patent Office: Days
• US Class Current: 280/775
• CPC Class Codes: B62D 1/16 Steering columns
• CPC Class Codes: B62D 1/187 with tilt adjustment; with tilt and axial adjustment B62D1/183, B62D1/19 takes precedence
• CPC Class Codes: B62D 1/195 Yieldable supports for the steering column

Abstract

An object of the present invention is to markedly increase the tilt holding force of a tilt telescopic column. A tilt telescopic steering device includes: a fixed bracket 1 fixed to a vehicle; a movable bracket 2 capable of moving relative to the fixed bracket 1; an intermediate bracket 3 which movably supports the movable bracket 2 in an axial direction, is rotatably pivoted on the fixed bracket 1 and is provided with a bearing 301 for rotatably supporting a steering shaft 101; a lock shaft 4 for tiltably and telescopicably fixing the fixed bracket 1 and the movable bracket 2 at a predetermined position; and a connecting shaft 5 for telescopicably fixing the movable bracket 2 and the intermediate bracket 3.

Claims

1. A tilt telescopic steering device, comprising:

a fixed bracket fixed to a vehicle;

a movable bracket capable of moving relative to the fixed bracket;

an intermediate bracket which movably supports said movable bracket in an axial direction, is rotatably pivoted on said fixed bracket and is provided with a bearing for rotatably supporting a steering shaft;

a lock shaft for tiltably and telescopicably fixing said fixed bracket and said movable bracket at a predetermined position; and

a connecting shaft for telescopicably fixing said movable bracket and said intermediate bracket.

2. The tilt telescopic steering device according to claim 1, wherein said movable bracket and said intermediate bracket are connected by way of a telescopic adjustment part and said connecting shaft that is slidably engaged and held on the telescopic adjustment part.

3. The tilt telescopic steering device according to claim 2, wherein said telescopic adjustment part comprises a horizontal long hole formed in said movable bracket, said movable bracket being connected to said intermediate bracket via said connecting shaft inserted into the horizontal long hole.

4. The tilt telescopic steering device according to claim 2, wherein said telescopic adjustment part comprises a horizontal long hole formed in said intermediate bracket, said connecting shaft being fastened to the horizontal long hole.

5. The tilt telescopic steering device according to claim 1, wherein said fixed bracket and said movable bracket are fixed with said lock shaft at a predetermined position via a tilt adjustment hole and a telescopic adjustment hole.

6. The tilt telescopic steering device according to claim 2, wherein said fixed bracket and said movable bracket are fixed with said lock shaft at a predetermined position via a tilt adjustment hole and a telescopic adjustment hole.

7. The tilt telescopic steering device according to claim 1, wherein said lock shaft is fastened and fixed with a lock bolt, and said connecting shaft is fastened and fixed with a fastening bolt via a bush.

8. The tilt telescopic steering device according to claim 2, wherein said lock shaft is fastened and fixed with a lock bolt, and said connecting shaft is fastened and fixed with a fastening bolt via a bush.

9. The tilt telescopic steering device according to claim 1, wherein the pivoting site of said intermediate bracket constitutes a tilt pivot.

10. The tilt telescopic steering device according to claim 2, wherein the pivoting site of said intermediate bracket constitutes a tilt pivot.