US 2279011 A
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April 7,- 1942. J. NICHOLSON 2,219,011 SWITCH OPERATING MECHANISM I Filed July 7, 1938 2 Sheets-Sheet l Inventor A itomc ys April 7, 1942. "J. NICHOLSON SWITCH OPERATING MECHANISM Filed July 7, 195a 2 Sheets-Sheet 2 A ttorneys through the end wall I! of the shell 6.
Patented Apr. 7, 1942 I UNITED STATES PATENT OFFICE SWITCH OPERATING MECHANISM Joseph Nicholson, Vineland, N. J.
Application July 7, 1938, Serial No. 218,011
This invention appertains to new and useful improvements in anti-glare shields especially adapted for motorists.
The principal object of the present invention is to provide a shield of the character stated which is electrically operated and conveniently controlled by a push button located in close proximity to the driver's hands, as for instance on the usual steering column.
Another important object of the invention is to provide control means for anti-glare shields which can be electrically elevated or lowered without any manual effort on the part of the motorist.
These and other important objects and advantages of the invention will become apparent to the reader of the following specification.
In the drawings:
Figure 1 represents a fragmentary perspective view showing the anti-glare shield and control means.
Figure 2 is a front elevatlonal view of the control mechanism.
Figure 3 is a vertical sectional view through the control mechanism.
Figure 4 is a horizontal sectional view through the control mechanism.
Figure 5 is a diagrammatic view disclosing th electrical connection between the electrical devices involved.
Referring to the drawings wherein like numerals designate like parts, it can be seenthat numeral I represents the usual windshield frame to which is secured the box I which controls the operating mechanism generally referred to by numeral I (see Figures 2, 3 and 4).
An arm I is suitably secured as at 9 to the steering column I! and has the switch mounted on the outer end thereof adjacent the annulus of the steering wheel |2 in immediate reach of the driver's hands.
Referring to the operating mechanism. it can be seen that the box 6 contains the electric motor II from which extends the shaft l4 carrying the pinion l5, which pinion meshes with the gear IS on the shaft H. The shaft l1 extends through the partition I8 which is spaced from the motor II by spacers l8 and also extends This shaft has its free end hollow and is equipped with a set screw 2| so that the rod 2| is received and retained. The free end of the rod 2| is jour naled in the bearing" secured to the frame I.
The rod 2| has the anti-glare shield 23 secured thereto.
go the lug 36 which projects laterally from the Numeral 24 represents a reversing switch unit mounted on the outstanding flange 25 of the plate 26 and is of the triple-pole, double-throw type. This switch 24 has the contactor arm 38 extending downwardly therefrom and this arm is slotted as at 21.
A pair of pins 28 extend laterally from the partition plate |9 and through openings in the block 29, the block being slidable on the pins 28. One end of the block 29 has a pintle 30 for engagement into the spiral groove 3| of the rotor 32, which is suitably secured as by keying to the shaft H. The other end of the block 29 has the pintle 33 disposed into the slot 21 of the switch arm 38.
The partition it has a lug 34 extending laterally therefrom and through which is disposed the screw 35. The screw 35 is swivelly disposed through the lug 34 but threadedly engaged into switch carrying plate 26. By adjusting the screw 25, the time limit for the throw of the switch unit 24 can be regulated.
Flanges 31-31 are provided on the partition It to form a guideway for the switch carrying plate 26.
The switch consists of the contactor 39 and the contacts 40 and 4|. Wires 42 and 43 extend from the contacts 40 and 4| to the reversing switch 24 and from the reversing switch wires extend to the field coil 46 and one brush 46 of the motor generally referred to by numeral i3. Numeral 44 represents a source of current to the electric motor.
Thus it can be seen that when the switch II is operated manually, the contactor arm 39 contacts either the contact 4|! or the contact 4| assuming the contacts 12, c, e. f, h and i, are in closed circuit position, the circuit will be closed with the motor l2. Thus the motor is energized. The switch 24 is adjustable by the screw 35 to throw when the glare screen reaches a desired position. When the switch 24 throws, contacts a, b, d, e, g and h assume circuit closed position, thus resulting in the open circuit disposition of the contacts b, c, e, f. h and i. This breaks the circuit to the motor I3 from the switch thus stopping the motor l3 and setting the circuit so that the motor willreverse when it is again energized by moving the contactor arm 39 of the switch ii to the contact 4|. Thus when the motor is energized again, the ,glare screen is moved back to the original position. In this operation the switch 24 is again thrown so that invention, what is ating means riding the groove of the rotor, said means comprising a slidabiy mounted block having a pin projecting therefrom and disposed in the groove of the rotor, a switch operating arm formed with a slot and a pin projecting from the block into the -slot, a panel on which the rotor is mounted, a switch mounted on the panel and having the switch operator contactor arm associated therewith, and guide means projecting from the panel and having the said block mounted thereon.
2. An electric motor reversing mechanism comprising a spirally grooved rotor, switch operating means ridingthe groove of the rotor, said means comprising a shdabiy mounted block having a pin projecting therefrom and disposed in the groove of the rotor, a switch operating arm formed with a slot and a pin projecting from the block into the slot, a panel on which the rotor is mounted. a switch mounted on the panel and having the switch operator contactor arm associated therewith, and guide means projecting from the panel and having the said block mounted thereon, said block and guide means being interposed between the switch and the rotor.