JPS6043470U - Vehicle tilt steering device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

FIG. 1 is a side view showing one embodiment of the tilt steering device according to the present invention, FIG. 2 is an enlarged side view of the main parts of the device,
Section 3 is an enlarged partially cutaway view of the same essential parts, Fig. 4 is a side view showing the right arm of both brackets, Fig. 5 is a side view of the first manual lever, and Fig. 6 is the operation. FIG. 7 is a side view of the second manual lever, FIG. 8 is a side view of the guide plate, FIG. 9a is an enlarged perspective view of the operation knob of the first manual lever, and FIG. 2 is an enlarged perspective view of the operation knob of the manual lever, FIG. 10 is an enlarged partial longitudinal sectional end view showing the state of engagement between the ratchet and the locking pawl of the operating plate in the device, and FIG. 11 is the engagement shown in FIG. 10. FIG. 12 is an enlarged longitudinal sectional end view of a retaining pawl, and FIG. 12 is an enlarged side view of the main part of the device during tilt adjustment. FIG. 13 is an enlarged side view of the main part of the device during tilt adjustment. Explanation of symbols, 13... Third steering shaft, 17... Steering wheel, 31...
... Fixed bracket, 32 ... Rotating bracket, 37 ... First tension spring, 4
0...Tatsuku device, 41...Pole, 4
2...Curved ratchet, 43...First manual lever, 43a...Cam hole, 43c...Roller, 43d...Operation knob, 44... ...Second tension spring, 45...No. 1 Lurie pin, 50... Memory mechanism, 51... Actuation plate, 51b... Shielding part, 51c...
...Latching claw, 51c1.51c2...Slanted portion, 51d...Engagement protrusion, 51e...Engagement stepped portion, 52...Plate Spring, 53...Second manual lever, 53b...Cam hole, 53c.
Bending/engaging pin, 53d... Operation knob, 54.-
...Third tension spring, 55...
Guide plate, 55a...Engagement recess, 55b
......Circular protrusion, 55c...Engagement stepped portion, 56...Engagement pin, 57...Engagement pin.

Claims (1)

[Scope of utility model registration request] A fixed bracket fixed to a part of the vehicle body, a tiltable steering shaft, and a column tube that rotatably supports a steering wheel are fixed to the fixed bracket, and the fixed bracket is connected to the fixed bracket so as to be rotatable vertically at a predetermined angle. a rotating bracket; a first spring means interposed between the rotating bracket and the fixed bracket or the vehicle body to bias the rotating bracket upward; and one of the brackets; A pawl is assembled on one side so as to be rotatable in the vertical direction and removably engages with an arcuate toothed portion provided on the other bracket of the two brackets; a first manual lever that is attached to the one bracket so as to be rotatable in the vertical direction and includes a stopper that restricts the swinging of the pole and maintains the engagement between the teeth of the pole and the arcuate teeth; a second spring means for biasing the first manual lever to engage the stopper with the back of the pole; and a second spring means provided between the first manual lever and the pawl for biasing the first manual lever to the second a first cam means for swinging the pawl to release the meshing between the teeth of the pawl and the arc-shaped tooth when the pawl is swung by a predetermined angle against the spring means of the first cam; In the tilt steering device for a vehicle, the directional bracket can be flipped upward by the action of the first springing means when the manual lever is swung, and the directional bracket can be separated into a part of the arcuate toothed part. An actuation plate having a locking pawl that engages with the bracket and an arcuate shielding portion that covers a portion of the arcuate tooth portion is rotatable up and down about the pivots of both brackets and in a direction perpendicular to the pivots. The actuating plate is slidably assembled and biased by a spring so that its locking pawl engages a part of the arcuate tooth, and - in the direction of the swing operation of the first manual lever. A second manual lever provided with an engaging portion that engages with the first manual lever and swings it integrally when a predetermined swing operation is performed is rotatable in the vertical direction on the one bracket. When assembled, the second manual lever is biased by a spring to be spaced at a predetermined angle from the first manual lever, and the second manual lever is spaced at a predetermined angle between the second manual lever and the actuating plate. A second cam means is provided on one side of the one bracket to slide the actuating plate to release the engagement between the locking pawl and the arcuate tooth portion when the actuating plate is oscillated. An engagement protrusion provided on the outer periphery of the shielding portion of the plate fits into an engagement recess when the actuation plate slides to restrict vertical rotation of the actuation plate, and an engagement recess provided at the top of this engagement recess. A guide plate is provided with a retaining step that abuts the engagement protrusion and always restricts the relative upward rotation of the engagement protrusion, thereby preventing the other bracket from rotating relative to the operating plate. The tilt angle of the rotary bracket with respect to the fixed bracket can be adjusted by sliding the actuating plate and rocking the first manual lever by a rocking operation of the second manual lever. , and an inclination angle of an inclined portion of the locking pawl of the actuation plate on the side opposite to the engagement stepped portion of the guide plate is made larger than an inclination angle of the inclined portion on the side of the engagement stepped portion. Tilt steering device for vehicles.