US1163387A - Elevator-door-locking mechanism. - Google Patents

Description

P. G. WIEGERT.

ELEVATOR DOOR LOCKING MECHANISM.

APPLICATION FILED JAN. 26,1915.

Patented Dec. 7, 1915.

2 SHEETSSHEET 1.

WITNESSES INVENTOR COLUMBIA FLANOURAPH :0. WASHINGTON. n. c.

P. G. WIEGERT.

ELEVATOR DOOR LOCKlNG MECHANISM.

APPLICATION FILED JAN. 26, 1915.

Patented Dec. 7, 1915. N 2 SIHEETSSH EET 2. M w. Q} Q s N2 \g N FIG. 3

WITNESSES INVENTOR COLUMHIA PLANOGRM'II co, WASHINGTON. D. C.

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PAULG. WIEG'ERT, OF CLEVELAND, OHIO, ASSIG'NOR T0 THE W. S. TYLER COMPANY,

. 0F CLEVELAND, OHIO, A CORPORATION OF OHIO.

ELEVATORDOOR-LOGKING MECHANISM.

' Application filed January 26, 1915.

T 0 all whom it may concern Be it known that 1, PAUL Gr. Wrnonnrr, a citizen of the United States, and a resident of Cleveland, in the county of Cuyahoga and State of Ohio, have invented a new and useful Improvement in Elevator-Door- Locking Mechanism; and I do hereby declare the following to be a full, clear, and exact description thereof.

The present invention pertains to elevator door locking mechanism, and relates particularly to mechanism for locking elevatol doors of the type in which two sliding doors, one of which moves faster than the other, are used.

It is an object of the present invention to improve upon locking mechanisms for doors of the above type, and to produce a locking mechanism which will be of a durable and cheap construction and which will be absolutely certain in the performance of its function of locking the doors.

I have described, by way of example, in the following specification, and shown in the accompanying drawings, one form of locking mechanism constructed in accord ance with my invention. It will be understood, however, that changes may be made in the structure of the embodiment described and shown, without exceeding the scope of the invention as defined in the appended claims.

in the drawings: Figure 1 1s a front elevation of the door looking at the inner side thereof, the operating mechanism and lock being shown in the position which they assumed when the door sections are in closed position; Fig. 2 is a front elevation looking at the door from the inner side thereof and showing the door sections in open position; Fig. 3 is a front elevation of the door looking at the inner side thereof and showing the two door sections in intermediate position between open and closed position; Fig.

4- is an upper view of the lock member, the pivoted operating bar and the guide employed in connection therewith. In this view the lock is shown in section to afford a clear disclosure of the internal mechanism thereof. 7

In the accompanyingdrawings the letters A and B designate respectively the fast and slow door sections which are mounted by Specification of Letters Patent.

. carried by the door section B.

Patented Dec. "3, 1915.

Serial No. 1,464.

closed to open position, at a speed which is I greater than that of the slow door B, so that both members A and B will reach their open or closed position simultaneously. As a means for accomplishing this result I employ an operating and controlling bar or lever 10 which is of course formed of metal and is pivoted intermediate its length as at 11 to a laterally extending ear 12, which is nals of the member 10 are provided with rollers indicated at 13 and 14L. These rollers are adapted to respectively ride during the movement of the door sections in guide members designated by the numerals 15 and 16.

The guide member 15 which is attached tothe fast door A consists in two parallel straps or bars 17 and 18 which are curved outwardly at their lower terminals away from the side frame member 19 of the door A forming the transversely ofi-set loop or throat 20. The member 15 may be secured to the frame member 19 of the door A by any suitable fastening devices. The "roller 13 is movable through the guide 15 as is clearly disclosed inliigs. 1, Q'and 3.

The guide 16 is somewhat similar to the member 15 including as it does a pair of parallel straps or bars 21 and 22 which are The termii swinging point for the member 10. Since the roller 13 15 disposed at the te nlnal of the member 10 and the pivotal point 11 is disposed between the members and 1%, the roller 13 and conse rently the door A travels a greater distance than the distance traveled by the member 11 in a given length of time.

In order to maintain the doors in closed position to guard against unvise opening, 1. provide a lock desig ated as an entirety in Figs. 1, 2 and by the letter F. This lock F which is shown in detail in i, includes as its essential elements a casin or housing 26, a spring pressed locking bolt 2?, a latch member 28, a trigger or finger member 29 and a link 30 which connects the lock bolt and finger member.

The housing is provided with lateral apertured ears 31, through which bolts 32 are passed in order to secure the casing in the proper position on the door A. The bolt 27 is slidable horizontally through the casing 26 at the upper terminals thereof. A helical spring interposed between the inner terminal of the bolt 27 and the adjacent wall 34 of the casing. The spring normally acts as disclosed in F a to not mally project the latch :28 into locking engagement with the roller 18. A tubular or other suitable form of guide 35 may be cast integrally with the meml er for supporting the spring 33 in the proper position. A depending ear or lug 36 is formed on the bolt 27. This member 36 is provided with a longitudinal slot as indicated at 3'? to receive the pivotal connecting bolt 38 by which the member 30 is freely connected to the bolt. An axle 39 is mounted in the casing 36 adjacent the lower terminal tiereof and immediately above the slot s0 in which the member 29 operates. The upper terminal of the member 29 is keyed on the axle 39 as is the lever terminal of the link 30. It will thus be seen that the trigger or finger member 29 may be manipulated to withdraw the bolt 27 within the casing against the spring 83.

It should now be noted at the latch member 28 is substantially triangular in shape, and that it is fitted at its upper corher as at 41 to the web portion formed at the lower end of the guide member 15. At the lower and inner corner of the member 28 is attached by means of a bolt indicated by dotted lines at as in Fi x' l, the outer terminal of the member 27. As shown best in Fig. the outermost corner 4d of the latch 28 is cut away along an arcuate line to produce an arcuate jaw indicated by dotted lines at 45 in Fig. 4. It will be observed upon r ference to this figure that when the locking jaw 45 engages the roller 13 this member will be retained in fixed position in the throat 20 of the guide. Any tend ency of the member 13 to move upwardly will be transmitted into a force acting directly from the w d5 to the pivotal point 41. The lower point of the jaw indicated by dotted lines at 46 in Fig. d being located a greater distance from the pivotal point 41 than the distance from the member ll to the nearest point on the face of the roller 18 makes it impossible for the roller to move upwardly through the guide, unless the member is manipulated to withdraw the latch 28 from engagement with the roller.

Obviously when the roller 1-3 is locked in the throat 20 of the guide 15, the doors A and B will be held against movement, for the doors cannot move except when the member 10 is free to swing,

lVha-t is claimed is:

1. The combination with slidable door sec tions and a frame therefor, of a guide carried by one door section and having an offset portion at its end, a controlling member pivotally attached to the other door sect-ion and si dably associated at one end with said guide, means slidably connecting one terminal of the controlling member to the frame, and means carried by said first mentioned door sect-ion for ice ring the controlling member in the ofiset p rtion of said guide whereby the door sections may be locked in closed position.

2. The combination with slidable door sectiens and a frame therefor, of a controlling member pivotally connected to and movable with one of the door sect-ions, means slidably connecting the terminals of the controlling member to the frame and to the other door section, said controlling member and connecting means being disposed so that the controlling member is in substantially horizontal position when the door sections are closed, and means carried by the second mentioned door section for locking the controlling member in horizontal position whereby the door sections are doubly locked closed position.

3. The combination with slidable door sections which. are adapted to move at different speeds when being opened or closed and a frame for the door sections, of a controlling member pivotally attached intermediate its length to the slow door section, a guide member carried by the frame, a second guide member carried by the fast door section, said second named guide member having an oflset portion at its end, rollers carried by the terminals of the controlling member and c0- operating with saidguide members, and a lock member carried by the fast door section for releasably locking the roller in the offset portion of said second named guide member.

4. The combination with slidable door sections mounted to move at different rates of speed of a controlling member pivotally attached intermediate its length to the slow door section, a relatively fixed guide independent of the door sections, a roller carried by one of the controlling members and mounted for sliding movement through the said fixed guide, a guide member fixed on the fast door section and movable therewith, said second named guide member having an oil'- set portion at its end, a roller carried by the adjacent terminal of the controlling member, said last mentioned roller being mounted for movement through. said last mentioned guide, pressed latch member normally engaging said last mentioned roller for holding the same in the off-set portion of the last mentioned. guide member whereby the controlling members is locked against swinging movement for maintaining the door sections in closed position.

5. The combination with a door frame and a pair of sliding door sections associated therewith, of a substantially vertical guide mounted on said frame, a substantially vertical guide mounted on one of said sections, a bar pivoted to the other section and slidably associated at its ends with said guides, and a lock including an engaging member pivoted to the door section which carries said second named guide and coopcrating with said bar, and a slidable actuatand a pivotally mounted spring ing member pivotally connected with said engaging member.

6. The combination with a door frame and a pair of sliding door sections associated therewith, of a substantially vertical guide mounted on said frame, a substantially vertical guide mounted on one of said sections, a bar pivoted to the other section and slidably associated at its ends with said guides, a lock including an engaging member pivoted to the door section which carries said second named guide and cooperating with said bar,

a slidable actuating member pivotally connected with said engaging member, and a pivoted trigger for operating said actuatin member. I

T The combination with a door frame and a pair of sliding door sections associated therewith, of a substantially vertical guide mounted on said frame, a substantially vertical guide mounted on one of said sections, said second named guide having an off-set portion, a bar pivoted to the other section and slidably associated at its ends with said guides, said bar and guides being so disposed that the bar is substantially horizontal when the door sections are closed, and a lock includingan engaging member pivoted to the door section which carries said second named guide and cooperating with said bar, and a substantially horizontal slidable actuating member for said engaging memher.

In testimony whereof, I the said PAUL G. VVIEGERT, have hereunto set my hand.

PAUL G. VVIEGERT. lVitnesses:

E. P. VIsBRo, J. B. DAVIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C.

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