US3321229A

US3321229A - Locking mechanism

Info

Publication number: US3321229A
Authority: US
Inventors: Oliver C Eckel
Original assignee: Individual
Current assignee: ECKEL INDUSTRIES Inc
Priority date: 1964-09-28
Filing date: 1964-09-28
Publication date: 1967-05-23
Anticipated expiration: 1984-05-23

Description

May 23, 1967 o. c. ECKEL LOCKING MECHANISM Filed Sept. 28, 1964 2%? I 9 l P i I I 42 40 4o 1 2 Sheets-Sheet l y 3, 1967 o. c. ECKEL. 3,321,229

LOCKING MECHANI SM Filed Sept. 28, 1964 2 Sheets-Sheet ig. at $1 .4.

dm y

United States Patent Office 3,321,229 Patented May 23, 1967 3,321,229 LOCKING MECHANISM Oiiver C. Ecirel, Qarlisie, Mass. (P-G. Box 226, Cambridge, Mass. 02138) Filed Sept. 28, 1964, Ser. No. 399,526 7 Claims. (Cl. 292-108) This invention relates to locking mechanism.

One object of my invention is to provide locking mechanism which is used in combination with a locking bar that has provision to receive part of my mechanism to effect locking of a double door.

Another object is to provide such a locking bar that may be movably attached to a door stile so that it can be placed in position for locking with my mechanism by a mere swinging movement.

A further object is to provide said locking mechanism of such a structure that it is operable from the inside of a room; but not from the outside, yet has simple mechanism that can be operated without a key by a mere turn of a finger.

A still further object is to provide such locking mechanism that is constructed of relatively simple parts that are easy to assemble and economical 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 in combination with my locking mechanism showing the latter in locked position.

FIG. 2 is an enlarged sectional View taken on the line 2-2 of FIG. 1.

FIG. 3 is an enlarged sectional view taken on the line 33 of FIG. 1.

FIG. 4 is an enlarged sectional view taken on the line 55 of FIG. 1, but showing the locking mechanism in unlocked position and omitting the locking bar.

FIG. 5 is a view similar to FIG. 4, but showing the locking bar and locking mechanism in locked position.

FIG. 6 is an elevational View of a locking wall.

FIG. 7 is an enlarged, fragmentary, front elevational view showing my locking bar and locking mechanism in locked position.

As illustrated, a double door is shown having two door sections 1) and DD. My locking mechanism has a hollow housing or sleeve 10 there being two mechanisms shown that are mounted in each said door section. Flanges l2 and 14 are at the outer and inner ends respectively of said housing and a tube portion 16 extends between these flanges. Within said tube 16, intermediate the ends, is a locking wall 18 having a keyhole which provides an elongate slot 20 therein.

An actuating member 22 shown as a bolt has an elongate stem 24 with an oblong-shaped head 26 which is at the inner side of the door when in use. This stem 24 is threaded as at one end portion and a bearing member 30 is welded or otherwise fixed to it at an intermediate point thereof and against which a coil spring 32 bears.

A locking pin 34 is fixed in said bolt stem 24 intermediate opposite ends and extends therethrough and beyond and is freely movable within the inner circumference of said spring 32. A stop member 36, shown as a nut, is screw-threadedly connected to said threaded portion 28 and it bears against said locking wall 18 only when in locking position as shown in said FIG. 5.

A locking bar 38 is at the upper portion, and inwardly of the double door, extending across and beyond both door sections D and DD. This bar 38 extends into the space between said head 26- and said inner flange 14. Said bar has an oblong-shaped attaching slot 39 at one side and two oblong-shaped locking slots 40 therethrough that are each adapted to receive the long part of said bolt head 26 when positioned in alinement with the long part of a said slot 40. Said head 26 may be rotated from unlocked position shown in said FIG. 4 so that it takes a locking position where it cannot pass through a said slot 40 as illustrated in said FIGS. 1 and 5.

At the free end of said bar 38 a recess 42 is provided, while at the opposite end a pivot stud 44 passes through said slot 39 in bar 38 and enters a door stile 45 thus pivotally mounting said bar 38 on said stile. A stud 46 is set in a door stile 57 and enters said bar recess 42 when the bar 38 extends across the door sections D and DD as illustrated in said FIG. 1.

A lower locking bar 48 is similar to said bar 38 in structure and purpose. It has an oblong-shaped slot 49 therethrough at one side similar to slot 39 and also two oblong-shaped slots 56 similar to slots 40. A stud 52 is fixedly set in said door stile 45 and a recess 54 is provided in said bar 48 into which said stud 52 enters when said bar 48 is in locking position. A pivot stud 56 is fixed in said door stile 57 and extends through said bar 48 and said slot 49, thus pivotally connecting said bar 48 to said stile 57. A cap 58 is shown as a cover for one end of said housing 10.

In operation, the doors D and DD each has one or more housings 10 set therein with the associated parts. Said bolt stem 24 normally extends into said tube 16, in unlocked position as shown in said FIG. 4, with said coil spring 32 compressed against said locking wall 18 and said bearing 38'. Said pin 34 bears against said wall 18. Upon rotation of said head 26 about degrees said locking pin 34 will pass through the larger portion of said keyhole 20. A

locking bar

38 or 48 will be moved to horizontal or locking position between said head 34 and [flange 14 and said head 26 will pass through a said

slot

40 or 50. Then said head 26 is turned about 90 degrees to locking position where it extends crosswise of the smaller portion of the locking bar slot 44} or 50 which completes the locking movement.

To unlock said

bar

38 or 48, said head 26 is turned about 90 degrees and is pushed through a said

slot

40 or 50, and the bar is lifted. The head 26 is then pushed in farther until said pin 34 passes through keyhole 20 whereupon said head 26 is turned about 90 degrees to the position shown in said FIG. 4.

I claim:

1. Locking mechanism in combination with a locking bar having an oblong-shaped slot, said mechanism comprising a hollow housing, a locking wall within and fixed to an intermediate portion of said housing and having an elongate slot therethrough, an actuating member extending into and movable in said housing and extending through said latter slot embodying a stop member and an oblong-shaped head at opposite ends respectively thereof, a bearing member fixed to and movable with said locking member intermediate said stop member and head, a coil spring in said housing having opposite ends bearing respectively against said bearing member and said locking wall, a pin member within the interior of said spring when in locked position and movable therethrough and fixed in said actuating member at an intermediate portion thereof and extending laterally beyond the periphery thereof and adapted to pass through the larger portion of said slot and unadapted to pass through the smaller portion 3 thereof, said oblong-shaped head being adapted to pass through the elongate portion of said locking bar slot and unadapted to pass through the narrower portion thereof.

2. Locking mechanism as set forth in claim 1, said housing embodying flanges at opposite ends respectively thereof.

3. Locking mechanism as set forth in claim 1, said actuating member head extending outwardly beyond and spaced from one end of said housing.

4. Locking mechanisms in combination with a double door and a locking bar, each of said doors having an opening therethrough, said locking mechanisms being mounted in said openings, said bar having an elongate slot therethrough, said mechanisms each comprising a hollow housing extending into said door opening, a locking wall within and fixed to an intermediate portion of said housing and having an elongate slot therethrough, an actuating member extending into and movable in said housing and extending through said locking wall elongate slot embodying a stop member and an oblong-shaped head at opposite ends respectively thereof, a bearing member fixed to and movable with said locking member intermediate said stop member and head, a coil spring in said housing having opposite ends bearing against said bearing member and said locking wall, a pin member within the interior of said spring when in locked position and movable therethrough and fixed in said actuating member at an intermediate portion thereof and extending laterally beyond the periphery thereof and adapted to pass through the larger portion of said locking wall elongate slot and unadapted to pass through the smaller portion thereof, said oblong-shaped head being adapted to pass through the elongate portion of said locking bar slot and unadapted to pass through the narrower portion thereof.

5. Locking mechanisms as set forth in claim 4, said housing embodying flanges at opposite ends respectively thereof, said oblong-shaped head extending outwardly beyond one of said flanges when in locked position.

6. Locking mechanisms as set forth in claim 4', said oblong head extending outwardly beyond and spaced from said housing in looking position, said locking bar being adapted to extend into said latter-mentioned space.

7. Locking mechanisms as set forth in claim 4 in combination with a door stile, and means pivotally attaching said locking bar to said door stile.

References Cited by the Examiner UNITED STATES PATENTS 313,942 3/1885 Knauer 292259 2,379,528 7/1945 Kelliher 292--74 FOREIGN PATENTS 840 1/ 1898 Great Britain.

MARVIN A. CHAMPION, Primary Examiner.

JOHN R. MOSES, Assistant Examiner.

Claims

1. LOCKING MECHANISM IN COMBINATION WITH A LOCKING BAR HAVING AN OBLONG-SHAPED SLOT, SAID MECHANISM COMPRISING A HOLLOW HOUSING, A LOCKING WALL WITHIN AND FIXED TO AN INTERMEDIATE PORTION OF SAID HOUSING AND HAVING AN ELONGATE SLOT THERETHROUGH, AND ACTUATING MEMBER EXTEND-ING INTO AND MOVABLE IN SAID HOUSING AND EXTENDING THROUGH SAID LATTER SLOT EMBODYING A STOP MEMBER AND AN OBLONG-SHAPED HEAD AT OPPOSITE ENDS RESPECTIVELY THEREOF, A BEARING MEMBER FIXED TO AND MOVABLE WITH SAID LOCKING MEMBER INTERMEDIATE SAID STOP MEMBER AND HEAD, A COIL SPRING IN SAID HOUSING HAVING OPPOSITE ENDS BEARING RESPECTIVELY AGAINST SAID BEARING MEMBER AND SAID LOCKING WALL, A PIN MEMBER WITHIN THE INTERIOR OF SAID SPRING WHEN IN LOCKED POSITION AND MOVABLE THERETHROUGH AND FIXED IN SAID ACTUATING MEMBER AT AN INTERMEDIATE PORTION THEREOF AND EXTENDING LATERALLY BEYOND THE PERIPHERY THEREOF AND ADAPTED TO PASS THROUGH THE LARGER PORTION OF SAID SLOT AND UNADAPTED TO PASS THROUGH THE SMALLER PORTION THEREOF, SAID OBLONG-SHAPED HEAD BEING ADAPTED TO PASS THROUGH THE ELONGATE PORTION OF SAID LOCKING BAR SLOT AND UNADAPTED TO PASS THROUGH THE NARROWER PORTION THEREOF.