US1650332A - Door-operating mechanism - Google Patents

Description

'Nov. 22,A 1927.

' A P. R. DOBSON DooR OPERATING MEGHANISM 4 Sheets-Sheet l Filed Sep't. 13, 1926 lNvENw-ow. PEPCY l?.l DOBsoN.

v l fi 'WW/f Nov. 22, 1927.

1,650,332 P. R. DoBsoN A DOUR OPERATING MECHANISH Filgd sept. 13, 1926 4 sheets-sheet 2 :5 INVENTOQ. PEPCY P.DOB5ON\ Nov. 22, 1927.

lP. R. DOBSON DooR oPERAT'mG MECH/misa Filed sept. 15, 1926 4 sheets-sheet 4 lNvENToQ. PERcv p. Dobson.

2 Les will engage With the wheels of the'vehicle causing the shaft 33 to rotate moving the shaft 31 forward and through-the gears and 24 rotating the shaft 26 to close the doors 11 and 12. At the same time the shaft 23 will move outwardly rotating the shaft 15 to cause the trip crank 19 to assume a vertical position and at the same time to cause the trip 18 to `assume 4a laying position Which is reversed when crank 34 is forced dovvn and back to open the coors thus action is Wheel of the vehicle when it emerges from the garage to tip 19 upright, so front Wheels Will engage with 19 and close the doors and lock them.

The crank members 34 and 18 kare spring actuated as at and 51 by springs 36 and 50 on the shafts 33 and 15 to retain them in nor- Y mal upright position and crank 19 to right Y open the doors.

l plied to doors in angles to crank 18. The collar 20 is provided With recesses as at 37 to engage with the securing pin 21 for holding the collar on the shafts 33 and 15 and permitting them to rotate a predetermined distance to retain the trip cranks 34 and 19 is rotated by'gears 24 and 25, more than half a circle, 27 and beyond and 28 are connected thus changing the position of cranks 28 from beyond one dead center to to doors 11 and 12, b pitmen 29 and 30. From this it will be seentliat a' push or pull action on pitinen 29 and 30 caused by the doors will not rotate shaftr26 or cranks 27 and 28-ivhich are y beyond dead centre and form the lock.

In Figure 9, is disclosed as at 39, on the gear 24, a rubber cushion or pad to prevent shock and breakage. shown in Figure 10 is lapplied to sliding roller garage doors and is operated through gears 24 and 25, to shaft 26 is attached a sheeve 42, instead of hinged doors `previously referred to, and consists of a sheevek40 attached to a door jamb and a cable or ro e 41 travelling thereof and attached to as eeve 42 and to the doors at 43 and 44 and passing over the sheeve 40. The sheeve 42 in operationis rotated, VWinding the cable 41 on one side and unvvinding it. on the .otherside to To close the doors the above action is merely reversed.

In Figure 11 my device is shown as apunder ordinary circumstances the device would obstruct traffic In thismodified caused by cable 46,19 is then ready for engagement With thev rear:

in upright position. Without moving thecranks 32 and22 and' the opposite dead center, cranks 27,.

being exertedto rotate The modified form a narrow alley Way Where.

desa

form the spring actuated trip crank 34 is used inside and outside the garage thus eliminating the cranks 1 8 and 19 so that, as shown by the lines in Figure 2 a car driving up the alley Way passes over the outside crank 13 forcing it down Without affecting the doors. .The car is then backed over the same crank K forcing it back dovvn thus rotating the gears 24 and 25 to open the doors. Vhen the car is backed out of the garage it is driven over the crank closing the doors and locking them.

As many changes could be made in the above l construction and many apparently widely different embodiments of my invention Within-the scope of the claims, constructed Without departing from the spirit or scope thereof, it is intended that all matter contained in the present specification and accompanying drawings shall be interpreted as illustrative and not in a limiting sense;

Vhat I claim as my invention is:

1. In mechanism of .the character described the combination with a door for a garage or the like of avertical shaft having a gear thereon, crank. arms connecting vthe shaft with the door and means for rotating the shaft at a distance therefrom, comprising a rotatably mounted gear adapted. to mesh with the gear on the shaft, a rotatably mounted horizontal shaft, a trip member keyed on said shaft, a rod connecting the second gear with said shaft whereby,l on pressure being exerted on the trip member, thehorizontal shaft is rotated to'rotate the vertical shaft to open or close the door.

2. In a device of the character described and in combi-nation with a door, a shaft having a gear thereon, crank arms rigidly connecting` thedoor -With said shaft, a second Y lgear adapted to mesh with the aforementioned gear to yrotate the shaft, link rods connecting thesecond gear vvith each of said shafts, crank arms rigidly mounted on the horizontal shafts and the vertical shaft to open and close the door.

3. Ina device of the character described, a rotatably mounted horizontal shaft, a crank rigidly mounted sleeve on said shaft, a pin adapted to engage With the shaft and Withthe slots in the sleevel to `permit partial rotation of the sha-ft. a vertical shaft having a gear thereon and a gear rotatably mountedto mesh With said gear and a rod connecting the sleeve on the first mentioned shaft with the second mentioned gear.

4. In automatic door opening and closing mechanism of the character described,v

adapted, on pressurethereon, a slottedl on said shaft, spring actuating means for -said crank to normally hold it in a vertical position, whereby, on the crank being pressed to a horizontal position the shaft is rotated and on the pressure being released the shaft automatically returns to its normal position, mechanism operatively connecting the shaft with the door and means provided on the shaft associated with the connecting means whereby the shaft on being released is adapted to partially rotate Without operating the means connecting means.

In witness whereof I have hereunto set my hand.

PERCY ROBERT DOBSON.

it to the'door operating

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