Wide scan rearview mirror

• US 4,318,590 A
• Filed: 02/28/1980
• Issued: 03/09/1982
• Est. Priority Date: 04/05/1978
• Status: Expired due to Term

• Current Assignee: William W. Hanley
• Original Assignee: William W. Hanley
• Inventors: Hanley, William W.
• Primary Examiner(s): Evans, F. L.
• Application Number:
  US06/125,494
• Time in Patent Office: 740 Days
• Field of Search: 350/6.6, 350/281, 350/289
• US Class Current: 359/214.1
• CPC Class Codes: B60R 1/025 comprising special mechanical means for correcting the field of view in relation to particular driving conditions, e.g. change of lane; scanning mirrors

Abstract

A scanning rearview mirror for vehicles and comprising a substantially universally pivotal mirror operably connected with the electrical system of the vehicle for automatically scanning through a horizontal scan pattern to reduce or eliminate blind spots during a driving operation, and through a vertical span pattern for facilitating visual inspection of the vehicle tires from a vantage point within the vehicle, either when the vehicle is moving or at a standstill.

Claims

1. A scanning rearview mirror for a vehicle and which comprises housing means adapted for installation on the vehicle, universally pivotal mirror element means, mounting means securing the mirror element means within the housing, centrally disposed pivot means secured on one face of the mirror element means and extending substantially vertically to provide for pivotal movement of the mirror element means in at least one direction, spring means operably connected between the mounting means and the mirror element means for constantly urging the mirror element in one pivotal direction, solenoid means operably connected between the electrical system of the vehicle and the mirror element means for selective intermittent pivoting of the mirror element means against the force of the spring means to provide a substantially horizontal scanning pattern for the mirror element means, said mounting means being removably engageable with the housing means for removably securing the mirror element means therein.

2. A scanning rearview mirror as set forth in claim 1 and including dash pot means operably connected between the solenoid means and pivotal mirror element means for damping the pivotal movement of the mirror element means.

3. A scanning rearview mirror as set forth in claim 1 and including second solenoid means connected between the electrical system of the vehicle and the pivotal mirror element means and independently operable for pivoting of the mirror element means through a substantially vertical scanning pattern.

4. A scanning rearview mirror as set forth in claim 1 wherein the mirror element means comprises a mirror having one face thereof constructed of a reflecting material and the opposite face thereof of a rigid material, said pivot means comprising a pivot shaft, a bearing sleeve concentrically disposed around the outer periphery of the pivot shaft and secured to the rigid material face, and the mounting means comprises mounting bracket means rigidly secured to the bearing sleeve and removably engagable with the housing means, said scanning pattern comprising a to and fro movement providing constantly overlapping viewing areas in a rearward direction for the operator of the vehicle.

5. A scanning rearview mirror as set forth in claim 4 and including second bracket means secured to the first mounting bracket means for supporting the solenoid means in spaced relation to the pivotal mirror element means, tie bar means operably connected between the solenoid means and rigid material face for transmitting movement to the mirror element means upon activation of the solenoid means.

6. A scanning rearview mirror as set forth in claim 5 wherein the tie means is connected with the rigid material face slightly spaced from one side of the pivot shaft means, and the spring means is operably connected to the rigid material face in spaced relation from the side of the pivot shaft means oppositely disposed from the tie bar means for cooperating therewith to provide said scanning action for the mirror element means.

7. A scanning rearview mirror for a vehicle and comprising a mirror element having the outer face thereof constructed of a reflective material, bearing sleeve means secured to the center of the inner face of the mirror element, pivot shaft means rotatably supported in the bearing sleeve means for rotation about its own longitudinal axis, bracket means rigidly secured to the bearing sleeve means for supporting the mirror element, solenoid means carried by the bracket means and intermittently operable for transmitting motion to the mirror element, tie rod means operably connected between the solenoid means and the mirror element and spaced to one side of the pivot shaft means for pivoting the mirror element in one direction upon activation of the solenoid means, spring means operably connected between the bracket means and the mirror element and spaced to one side of the pivot shaft means oppositely disposed with respect to the tie rod means for constantly uring the mirror element in an opposite pivotal direction, said solenoid means and spring means cooperating to provide a scanning pattern of movement for the mirror element and having constantly overlapping viewing areas in a reflective direction away from the outer face of the mirror element, and including second solenoid means connected with the mirror element and independently operable for pivoting the mirror element through a scanning pattern substantially perpendicularly disposed with respect to the first scanning pattern.

8. A scanning rearview mirror for a vehicle as set forth in claim 7 and including dash pot means operably connected between the solenoid means and mirror element for damping the movement of the mirror element.