US1589439A - Door-operating mechanism - Google Patents

Description

June 22 1926.

,. J. SNYDER ET AL' DOOR OPERATING MECHANISM 3 2 Sheets-Sheet 1 Filed March '7, 1925 Inf 643f J4 y June 22 1926.

J. SNYDER ET AL noon OPERATING MECHANISM 2 Sheets-Sheet 2 Filed March 7, 1925 gwuentcwj s/m r Patented June 22 1926,

' UNITED, STATES 1,589,439 PATENT OFFICE.

JESSE SNYDER AND JAMES Q. SNYDER, OF SALT LAkE CITY, UTAH.

nooa-ornaawme imcmxsu.

, Application filed larch 7, 1925 'Seria1 No. 18,828.

The present invention relates to a door operating mechanism and aims to provide means whereby garage doors and the like may be conveniently opened and closed by the operation of a switch for energizing an electric motor.

A very important object of the invention is to provide a simple and efficient operating means for the door which will require little or no attention on the part of the operator, a mechanism which is both eflicient and reliable in operation, inexpensive to construct,

strong, durable, and otherwise well adapted to the purpose for which it is designed.

With the above and numerous other objects in view as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawings Figure 1 is a top plan view of the mech- .anism embodying the features of our invention. y

Figure 2 is an elevation of the rear portion of the operating mechanism.

Figure 3 is a detail view showing therack 'frame and pinion.

Figure 4 is an enlarged detail section through the support for the rack frame.

Referring to the drawing in detail it will be seen that a garage or any other suitable building, room, for the like is shown at C rovided with a door way in which are 'nged the doors A of any suitable design. At either the top or bottom of the garage there is disposed transversely thereof a supporting beam 1 having extending forwardly therefrom guide bars 2 in parallel spaced relationship. A rack frame .3 is provided with'a continuous, series of internal teeth as is clearlyshown in Figure 3, and is movable transversely across the beam 1 and between the bars 2, thereby being movable toward and away from the 'doorway of the garage. The forward end of the rack frame 3 is provided with a slot 5. in which is engageable slidably an extension 6 of a'block 7. Pivot plates 8 are supported on the block 7 and pivot pin 9 projects therethrough for pivotally engaging the rods 10 therewith. These rods 10 areformed in sections-receivable in a sleeve 11 so'that the lengths thereof may be changed as may be found necessary or desirable, depending upon the size pivotally engaged as at 15 with the doors A. t

It will thus e seen that by moving the rack frame 3 toward and away from the door way the doors A may be swung to an open or closed position.

An electric .motor M is mounted on the beam 1 and its shaft 16 drives pinion 17 wh1ch meshes with a gear 18 on a shaft 19 mounted in a bracket 20 fixed-to the beam 1 n any suitable manner. The end of the shaft 19 carries a inioh 21 which meshes with the teeth of t e rack frame 3 for reciprocating' the same back and forth as previously indicated. A supporting frame F lncludes an intermediate ortion 23 and arms 24 extending perpendlcularly therefrom so ,that the supporting frame is substantially U-shaped in formation. The arms 24 are provided with spaced guide fingers 25 between which the longitudinal edges of the rack frame 3 move: If, now., the motor M is energized, the pinion 21 will be rotated and granting that itis meshing with the teeth on the upper longitudinal inner edge of the rack frame, and, in F igure 3 is rotating in a counter-clockwise irection, the rack frame 3 will be drawn away from the door way so as to open the doors A. When the rack 21 reaches the end of the rack frame, it will have a tendency to lift the same. The supportin frame 24 therefore, will also be lifted. Ve, therefore, provide a support 27 through which the intermediate portion 23 of the frame F 1s slidable. A spring pressed pawl 28 is pivoted on this support 27 and one end thereof is engaged in either of the twb openings 29 for holding the frame F either in a raised or lowered position. The other end of this pawl 28 is engageable with cams 30 and 31. In the example of the movement of the rack "just previously described, the cam 30 will engage the pawl 28 so as to release lower 0 ning 29. If in this position the motor is energized, and continues'to rotate the pinion 21 in the same direction,

said pinion will be in mesh with the teeth -49 are embodied in a two way on the lower inside longitudinal edge of the rack frame thereby moving. the same toward the door way and closing the door, it bein understood that the supporting frame will hold the rack frame in the raised position so that it will continue-to mesh with the pinion with the teeth on its lower inside edge. When the rack moves forwardly so that the pinion 21 en ages the teeth at the rear end of the rack rame, the cam 31' will engage the trip pawl 28so as to disengage it from the lower opening 29 and the rack frame will now lower so that a continuation of the motor would again move the rack frame rearwardl for opening the door.,

Two circuit c osers are mounted on the suppirt 27, one being designated by the letter and the other b the letter Y. The circuit closer X inclu es a stationary contact 31" and a movable contact 32 in the form of a lever 33 fulcrum'ed at 34 on the standard 35 which supports the fixed contact 31. A bolt 36 rises from the frame F and extends through an end of the lever 33 and has thereon a 'sp'rin 37 for erigaging the lever so that when the frame 1s m its lowered position the circuit closer X is closed. The circuit closer Y includes a fixed.

contact 39 a a movable contact 40 which is connected the movable contact 33 b link 41 so that when circuit closer X 1s closed the circuit closer Y is open and vice versa.

"Electric leads 43 and 44 are connected to any suitable source of electrical energy and hne 44 is connected with the motor as at 45. Two contacts '46 and 47 are connected to. the line 43. Two contacts 48 and switch of suitable construction with contacts 46 and 47, the switch arm being shown at 50. A wire 51 leads from contact 48 to fixed contact 39 and a wire 52 leads from contact 49 to fixed contact 31'. Wire 53 leads from 'movable contact 32 to the motor at 54 and wire 55 leads from movable contact 40 to.

the motor at 54. As shown in Figure 2 if the switch arm 50 is swung to engage contacts 46 and 49 a current will flow from the line 43, through the switch, through wire 52, -,switch X, wire 53, motor M, and returned through line 44. This will energize the motor for rotating the pinion so as to move the rack. 3 rearwardly from the door 51, switch Y, wire 55, motor M, an return ,v mg frame, means for engagin through line 44, thereby again energizing the motor M and thus the rack will be moved forward for closing the doors A until the rack frame is lowered, thus causing the spring 37 and bolt 36 to rock the lever 33 so as to open the switch Y and close the switch X. It is evident that the wiring and operation of the motor could be changed in various different ways without v departing from the spirit of the invention, and there- .fore, it is to be understod that the present embodiment of the invention has been described merely by way of example. It is thought that the construction and operation as well as the advantages of the invention will now be clearly more detailed description thereof. It .is desired, however, to point out that numerous changes in the details of construction, and in the combination and arrangement of arts may. be resorted to without departing om the spirit or scope of,the invention as hereinafter claimed or sacrificing any of its advantages.

Having thus described the invention, what we claim as new is 1 1. In a door operating mechanism, a sup port, a supporting frame slidable in the support, a rack frame slidable in the supportthe, rack frame with a door to be operate thereby, a pinion meshing with the rack frame, means operable by the rack frame for holdin the supportin frame in a raised or lowered position so is at the pinion will be maintained in mesh with the teeth of the rack frame, a pair of switches mounted on the support understood without a p and connected to be simultaneously operated so as to be alternately opened and closed a motor operatively associated with said pinion, circuits including said switches and said motor, whereby the motor may be operated to rotate the pinion in one direction, and means on the supporting frame for operating the switches upon the raising and lowering of said supporting frame.

2. A door operating mechanismv including, in combination, a support, a U-shaped supporting frame having its intermediate portion slidable in the support, said intermediate. portion of the sup orting frame being provided with a pair of spaced openings, a spring pressed dog on said support engageable with said openings forholding the supporting frame either in a raised or lowered position, a rack frame provided with a continuous internal series of teeth, means for operatively connecting the rack frame with a door to be operated thereby,

guide means on the ends of the suppprting ame for receiving the rack frame a pin- .ion meshing with said teeth of the rack frame for reciprocating said rack frame, and moving the same laterally of its path of reciprocation, a motor operatively associated with the pinion, and means on the rack frame for engaging said dog so as to release the same and allOW the supporting frame to move with the rack frame when said rack frame moves in its transverse path, a pair of switches mounted on the support and connected to be simultaneously operated so as to be alternately opened and closed, circuits including the switches and the motor, and means onv the supporting 1 frame for operatin the switches upon the raising and lowerlng of the supporting frame.

In testimony whereof We aflix our signa tures.

JESSE SNYDER. JAMES Q. SNYDER.

Images