US1827631A - Elevator door closing device - Google Patents

Description

Oct. 13, 1931. A. A. WAYNE ELEVATOR DOOR CLOSING DEVICE Filed Jan. 19, 1931 FILES-E1.

INVENTOR.

. H-HJ YHYNE,

ATTORNEY.

patented Oct. 13, 193i UNITED STATES ALEXANDER A. WAYNE, OF SAN FRANOISCOQGAIJIFORNTA ELEVATOR noon cLosmG nnvron Application filed January 19, 1931. Serial No. 509,810.

This invention relates to a device for closing elevator doors, and has particular reference to a device wherein the customary 1nner door of an automatic elevator will be closed after the occupant passes from the elevator cage.

A further object is to produce a device of this character which is simple in construction and therfore one which may be readily applied to any elevator door.

A still further object is to produce a device of this character which will be neat in ap earance.

ther objects and advantages will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a front elevation of an elevator cage and door having my device apphed thereto,

Figure 2 is an enlarged detail view of my device showing the parts in a reverse position to that shown in Fig. 1,

Figure 3 is an end elevation of Fig. 2 looking from the right of the drawing, and

Figure 4 is a fragmentary detail View showing the manner in which the actuating bar may be spliced.

It is a common occurrence to have a person enter an elevator, ride a distance and get out without closing the door of the cage, and

it is essential that the door of a cage be closed for the reason that in many instances, the closing of the door of the elevator cage serves to complete the electrical clrcu t whereby the movement of the elevator 1s controlled, and if this circuit is not closed, a person at another floor cannot actuate the elevator. Therefore, applicant has produced a very simple device which may be attached to any elevator having a movable door, which device will actuate the door to close it after it has been opened for the purpose of entering or leaving the elevator ca e.

Tn the accompanying drawings wherein for the purpose of illustration is shown a preferred embodiment of my iuvention,-the numeral 5 designates an elevator cage attached to the usual cables 6; This cage is adapted to travel inthe customary elevator-shaft and has a folding gate 7. It is of course understood that this" gate might bea'slidi'n'g door without altering theoperation'of my device. At 8' I have shown aplate having anangular portion 9 thru the medium of wh'ich" the plate is secured to the topof the elevator and at a point adjacent its forward'edg'ei Pivoted',to the plate 8 is ari'arm 'l-l pivoted' as at 12. This arm extends downwardly in front of the elevator door 7 and is preferably jointed as is-best illustrated in Fig. 4, so as to be lengthened for various widths of 'door openings. To the lower end ofthis arm 11 is. pivoted a link 13 which is'in' turn pivoted as at 14 to one of the rails-16 of'the door 7. Connected to th'e upper end'of the, arm'llis a link '17 which is pivoted as at 18 to a lever 19 pivoted at 21 A spring 22- is connected to the upper end-of the lever 19 and has its opposite end engaged in a projection I 23 formed upon the plate& 'A similar projection 24 is also formed upon the plate 8, the purpose of which will be later seen. The operation of my device is as follows Assuming that my device has been secured to an elevator, as illustrated in Fig. 1, and that the door has been moved to the full line position, the spring 22 will be under tension, and as a result, when the person entering or leaving the elevator has released his hold upon the door 7 the spring will cause the lever 19 to move about its pivot 21 thus exerting a pull upon the link 17, actuating the arm 11 about its pivot 12, and in turn pushing upon the link 13 with a result that the door 7 will move from its full line position thus closing the door. Should the elevator door open in the opposite direction from that shown in Fig. 1, it is merely necessary to reverse the position of the lever 19 from the left hand side of the plate as shown in this figure to the right hand side of the plate as shown in Fig. 2 and to moi e the plate from the left hand side of the elevator to the right hand side of the elevator.

It will thus be seen that by this simple arrangement, an form of elevator door may be closed and in either direction depending entirely upon the arrangement of the parts of my device.

It is to be understood that the form of my invention herewith shown and described is to be vtaken as a, preferred example of the same .rand thatgva'rious lianqe's relative to the material, size, shape and arran ement of parts may be resorted to Without epar'ting from the spirit? of the invention or the scope of the subjoined claims,

Having thus described invention, I claim:

1. In a device of the'harac'tef described,

he e mbi at nz f a doo p n av in a door 'closnre slidably positioned in ,said door opening, of a plate positioned abovesaid door openin of an arm pivoted to said plate 7 and having. ts lower extremity extending in frontoffi sa1ddooropening, of a link pivoted to said arm and to door, of a link pivoted to-thiel lpper extremitjof said arm, of a lever pivoteditosiaid late and to said last meni b nk we spo -in e p t el he we Qndoisa lever an a El t er the-I PrPq e epe fied- 2i- In aidevicejof the character described, a plate ada ted to be-secured above a door opening, 's'ai' plate having projections formed thereim of a lever, pivoted to said plate,.a spring interposed between one end of. said lever d 9 ,1 o sai proj o s of said plate, of an arm pivoted to; said plate, a link I inter osedzbetvveen one endoi said arm and the ee end of said; lever, a linkpivoted to the free endof; said arm and having its opposite endv pivotally secured to a door slidably positioned in said door opening.

. testimony whereof, I afiix my signature.

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