US2851870A

US2851870A - Locking mechanism for doors

Info

Publication number: US2851870A
Application number: US545436A
Authority: US
Inventors: Oliver C Eckel
Original assignee: Individual
Current assignee: Individual
Priority date: 1955-11-07
Filing date: 1955-11-07
Publication date: 1958-09-16
Anticipated expiration: 1975-09-16

Description

P 1958 o. c. ECKEL 2,851,870

LOCKING MECHANISM FOR DOORS Filed NOV. 7, 1955 2 Sheets-Sheet l 1; I E II I 'I I I II II 2 i I l I I l I I I i II I I I I l i I I I0 "T I l I I l I I I l I l I L I I I I i l I l I I I l I I H- 2a I F Sept. 16, 1958 o. c. ECKEL 2,851,870

LOCKING MECHANISM FOR DOORS Filed Nov. 7, 1955 2 Sheets-Sheet 2 l I 24 I wm w I I 20 I I l I I ,2;

I -I /6 I 0 /ZI 21 I I I I I I I I I @A-M fa mz/i 4% United States Patent LOCKING MECHANISM FOR DOORS Oliver C. Eckel, Carlisle, Mass.

Application November 7, 1955, Serial No. 545,436

6 Claims. (Cl. 70-101) This invention relates to locking mechanism for doors, particularly doors with flexible bodies.

Flexible door bodies are used in some double-door installations because they are struck so hard when opened by driving trucks, or the like, against them, that if they were not yieldable, the door bodies would be severely damaged or torn off the hinges. However, such flexible doors present the problem as to how to effectively lock them from intruders, who might distort them sufficiently to effect an entrance, or a partial entrance.

Accordingly, one object of my invention is to provide locking mechanism, particularly for double doors, that will prevent distorting of a door sufliciently to gain an effective entrance.

Another object is to provide locking mechanism whereby, with a single locking control member, a double door can be separately locked at the inside and also separately locked at the outside, and likewise unlocked from either the inside or outside.

A further object is to provide such locking mechanism that is simple to place in or remove from, looking position, and is relatively inexpensive to manufacture.

The foregoing and other objects which will appear as the nature of the invention is better understood, may be accomplished by a construction, combination and arrangement of parts such as is disclosed by the drawings. The nature of the invention is such as to render it susceptible to various changes and modifications, and therefore, I am not to be limited to the construction disclosed by the drawings nor to the particular parts described in the specification; but am entitled to all such changes therefrom as fall within the scope of my claims.

In the drawings:

Fig. 1 is a front elevational view of a double door with my locking mechanism in locked position.

Fig. 2 is an enlarged, sectional view taken on the line 2-2 of Fig. 1.

Fig. 3 is a front elevational view of my locking control member.

Fig. 4 is a side elevational view of said member.

Fig. 5 is a top plan view of my locking control member.

As illustrated, a double door includes a single left door having holes 11 therethrough in the upper half and lower half thereof. Also included is a single right door 12 having holes 13 therethrough in the upper half and lower half thereof. Said

doors

10 and 12 are swingably supported by hinges 14 and are slightly spaced apart, between their noses or free edges, when in closed position.

A locking control member 18, of general Z-shape in cross section, may be formed of sheet steel, for instance, such as 16 gauge, or about inch thick. In position of use it has a left portion 20 bearing upon or adjacent a face of said door 10, and which has holes 21 therethrough corresponding to said holes 11 in said door 10. An intermediate or connector portion 22 extends angularly, shown as a right angle, to said left portion 20, from which extends a right portion 24 at a right angle to said connector doors to support the control member.

portion 22 and bearing upon or adjacent a face of said door 12. The latter has holes 25 therethrough corresponding to holes 13 in said right door 12.

Said control member has an integral top hanger portion 26 that is bent at an angle so that it extends from said left portion 20 rearwardly and rests on top of the left door 10. Another top hanger portion 27 is also bent at an angle so that it extends from said right portion 24 forwardly at an angle and rests on top of the right door 12. These

top hanger portions

26 and 27 are welded to said intermediate portion 22, and they keep said con trol member from scraping on the floor and utilize the My control member preferably extends the full height of the door, and is of considerably less width than that of the two

doors

10 and 12.

Extending through each of said door holes 11 and 13 are bushings 28 which are threaded at one end, each of which has an integral collar 30 which lies against a face surface of a door, while a threaded collar 32 screwthreadedly fits over the threaded end of said bushing 28 and lies against the face surface of said door, thus providing wear protection for said holes.

To lock said double door I provide an elongate member, shown as a chain 34, or similar elongate member, that extends through the hollow bnshings 23 in the upper and lower said door holes 11 of said left door 10, and it also extends through said holes 21 in the locking control member 18 opposite said latter door holes 11, the ends of said chain being brought together to receive a padlock 36. Another chain 38 is provided for the right door that extends through the hollow bushings 28 in the holes 13 and through the holes 21 in the locking control member 18 on the right side, the ends of the chain 38 being locked outside said control member 18 by a padlock 40. While a single chain could be used with a padlock to hold both doors in locked position, I prefer the above arrangement for some purposes.

To hang my control member 18 on a hook, for instance, I provide holes 42 therein.

What I claim is:

1. Locking mechanism in combination with a double door embodying a door at the left and another at the right, the noses of which doors are normally spaced apart, each said door having two holes therein spaced apart, and located in upper and lower half portions of said doors, said locking mechanism embodying a locking control member extending more than one-third the height of said doors and having a first portion adjacent a face of said left door and having two holes therethrough, an intermediate portion extending angularly therefrom, and a third portion extending from said intermediate portion and being adjacent a face of said right door and having two holes therethrough, said holes in said first and third portions communicating with said holes in said two doors, said intermediate portion extending from a point adjacent the front face of a said door, through said space between said door noses to a point adjacent the rear face of the other said door, said first and third portions connecting with said intermediate portion and extending therefrom in opposite directions and being at opposite faces of said doors, an elongated locking member extending through the holes in said left door and two of said holes in said locking control member first portion, means locking different portions of said elongate locking member together, and another elongate locking member extending through the holes in said right door and two of said holes in said locking control member third portion, and means locking different portions of said other elongate locking member together.

2. Locking mechanism in combination with a double d'oorembodying-a door at the left and another at the right; thenoses" of' which doorsare normally spaced apart, each said door having a pair of holes therein spaced. vertically apart, and located in upper and lower halfportionsof saiddoors; saidloeking mechanism embodying alocking'control member extending more than one-third the, height of'said doors andhaving afirstiportion adjacent a face. of said left door andlhaving; two,

holes therethrough, spacedverticall'y apart,,an intermediate portion extending angularlytherefrom, and a third portion extending from said intermediate portion and being adjacent a' face of said'ri'ghtdoor and'having two holes. therethrough, saidholes in saidifirst andthirdportions communicating respectively'with said holes in said" ber first portion, means locking different portions of,

said elongate locking member together, and another elongate locking member extending through the holes in said rightdoor and two of said holes in said lockingcontrol member: third portion, and means locking dilferent portions of said other elongate locking member together,

the free ends of said first :elongate.locking member being at oneface' of 'said'double door andthe free ends of said other elongate locking member being at the opposite face of said double door.

3. Locking mechanism in, combination with a double door embodying. a door at the left and another door at the right, each said door. having a pair of holes therein spaced apart, and located in upper and lower half portions of said doors, said locking mechanism. embodying a locking control member extending more than one-third the heightiof said doors and' having a first portion adjacent'a'faceofsaid left door andhaving twoholes therethrough spaced apart, an. intermediate portion extending angularl'y'therefrom, and a third portion extending from said intermediate portion and being adjacent a face of said right door and having two holes therethrough spaced apart; said holes in said first and third portions communicating respectively with. said. holes in said left and right doors, said intermediate portion extending from a point adjacent, the front face of a said door, through said space between said door noses to a point adjacent the rear face of the other said door, said first and third portions connecting with said intermediate portion and extending therefrom in opposite directions and being at opposite faces of said doors, bushings extending through eachhole of said pair in said left door, bushings extending through each hole of said pair in saidright door, a first locking member extending through said bushings in said left door and said' holes in said first portion, means locking portions of said locking member together, another locking member'extending through said bushings in said right door and said holes in said third portion, and, meanslocking portions of said other locking member'together;

4*. Locking-mechanism in combination with a double doorembodying a door at the left and another door at the right, each said door having a pair of holes therein spaced apart sai'd locking mechanism embodying a locking control member-having a first portion adjacent a face of said leftdoor and having two holes therethrough spaced apart, an intermediate portion extending angularly therefrom, and'a third portion extending from said intermediate portion and' being adjacent a face-of said right door and: having two holes therethrough spaced apart, said holes in said first and thirdportions communicat ing. respectively with said holes in' said left, and right doors, said intermediate portion extending from a point adjacent the" front" face" of" a said door, through said space between said door noses to a point adjacent the rear face of the other said door, said first and third portions connecting with said intermediate portion and extending therefrom in opposite directions and being at opposite faces of said doors, bushings extending through each hole of said pair in saidzleft'door, bushings extending through eachhole of, said pair in said right door, a first locking member extending through said bushings in said left door. and saidlholes in. said. first portion, means locking portions ofsaidtlocking member together, another locking member extending through said'bushings in said right door: andsaid: holes in: said third portion, and, means locking portions of said other locking mem ber together, said first portion embodying a top hanger portion extending angularly and said third portion embodying atop hanger portion extending angularly in the opposite direction to said first top hanger portion, both said top hanger portions resting on the tops of said doors;

5. Locking mechanism in combination with a double door embodying a do-or-attheleft and another door at the right, each said door having a pair of holes therein spaced'vertically apart; said locking mechanism'embodying alocking'control member having a firstportion adjacent aface' of said'leftidoor andhaving two holes therethrough spacedvertically apart, an intermediate portion extending angularly therefrom, anda third portion extending from said intermediate portion and-being adjacent aface' of said. rightdoor; and having two holes therethrocgh spaced vertically apart, saidholes' in said, first and third portions communicating respectively with said holesiirsaid leftandi right doors, said intermediate portion" extending from' azpointadjacent the front face ofa said door; through said? space between said door noses'to' a' point adjacent'therear face of 'the other said'. door, said first andthird portions connectingwith said' intermediate portion and extendingtherefrom in opposite.

directions and being at opposite faces of! said doors, a first locking chain extending through said holes in said left door and'said holes in said first portion, means= locking portions ofsaid'locking chain together, another locking chain extending through saidholes in said right door; andsaid holes in said thirdportion, and; means locking. portions of' said other locking chain together, said first portion embodying a top hanger portion ex-.

tending, right-angularly outward and said third' portion embodyinga top hangerportion extending right-angularly, inward, both said'top, hanger portions resting ontheltops. of said doors.

6. Locking mechanism in combination with a double door embodying a door at theleft and another. at the right, the noses of which doors are. normally; spaced apart, each said door having two holes therethroughv space-d apart,,said locking mechanism embodying a looking control member extending for a major parttof thev height of said doors and havinga first portionadjacent a face of said left door and having two holes therethroughspaced apart, an intermediate portion extending angularly therefrom, anda third portion extending. from said intermediate portion and. being. adjacent a: face of saidrightLdoorand having two holestherethroughspaced apart, said holes in said first and third portions:com-. municating with said'holes in said doors,- said interme-.

diate portion extending from a point adjacentthe. front.

(References on" following page) 5 References Cited in the file of this patent 2,486,790

UNITED STATES PATENTS 413,128 Brabson Oct. 15, 1889 1,319,603 Monfet Oct. 21, 1919 2,236,938 Edelen Apr. 1, 1941 617,965 2,338,851 Heyer Jan. 11, 1944 620,478

6 Lane Nov. 1, 1949 Welliver et a1 July 18, 1950 Jones Jan. 2, 1951 FOREIGN PATENTS Germany Aug. 24, 1935 France Jan. 21, 1927