US2882711A - Door and lock assembly - Google Patents

Description

April 21, 1959 w. CLIFTON, JR

DOOR AND LOCK ASSEMBLY 2 Sheets-Sheet 1 Filed Feb. 1, 1954 INVENTOR. WALTER L.CLIFTON JR.

BY ATTORNEYS April 21, 1959 w. CLIFTON, JR

DOOR AND LOCK ASSEMBLY 2 Sheets-Sheet 2 Filed Feb. 1, 1954 INVENTOR. WALTER L.CLIFTON, JR

ATTORNEYS United States Patent DOOR AND LOCK ASSEMBLY Walter L. Clifton, Jr., Atlanta, Ga., assignor, by mesne assignments, to American Art Metals Company, Atlanta, Ga., a corporation of Delaware Application February 1, 1954, Serial No. 407,373

9 Claims. (Cl. 70-451) This invention relates to door and lock assemblies and more particularly to an assembly of a door and a door locking mechanism especially useful in connection with metal doors.

It is an object of this invention to provide an assembly of a door stile and a door locking mechanism which is easily assembled and disassembled.

It is a further object of this invention to provide a door and lock assembly in which all of the locking elements are contained in a one-piece housing which may be easily installed or removed from the door stile.

It is a still further object of this invention to provide an assembly of a door stile and a lock mechanism in which the lock mechanism is a sub-assembly adapted to be received in a recess in the door stile.

Still another object of the invention is to provide an assembly of a door stile and a lock casing which permits accurate dimensional control of all parts to insure complete interchangeability.

Still a further object of the invention is to provide in combination with the door and lock assembly an adjustable astragal which eliminates the necessity for face plates thereby presenting a pleasing continuous appearance, which allows control of clearance at the strike edge of the door stile, and which provides easy access to the lock case.

In accomplishing these objectives, this invention provides a one-piece lock casing which receives a pair of key-operated locking cylinders having rotatable cam members operating a lock throw member. The throw member is also received in the lock casing and includes a springbiased saddle member which cooperates with the cam members to advance or retract the throw member. The casing which contains the lock elements is adapted to be received in the interior of a hollow door stile through a recessed web adjacent the strike edge of the door stile. An adjustable astragal is mounted along the strike edge of the door stile in such manner as to cover the lock casing, at the same time permitting freedom of movement of the lock throw member. The astragal is removable to permit access to the lock casing and also is adjustable to permit adjustment of the clearance between the doorstile and the strike edge of the door frame.

Further objects and advantages of the invention will become apparent from the following description taken in conjunction with the accompanying drawings in which:

Fig. 1 is a front elevation view, partially cut away, of a door having a lock assembly in accordance with the invention, the door being shown in locked relation with respect to a door frame;

Fig. 2 is a view in section along line 2-2 of Fig. 1, with the astragal partially cut away to show the manner in which the lock is attached to the door stile;

Fig. 3 is a view in section along line 3-3 of Fig. 1;

Fig. 4 is a view in section along line 4-4 of Fig. 2;

Fig. 5 is a perspective exploded view of the door stile and lock assembly of Figs. 1-4; and

Fig. 6 is a side elevation view, partially cut away, showing a slightly modified form of door stile and lock assembly in unlocked position.

Referring now to the drawings, the door stile generally indicated at 10, which may be made of aluminum or some other suitable metal, and is of substantially hollow rectangular shape in horizontal cross-section, comprises front and rear walls 12 and 14, respectively, and side walls or webs 16 and 18. The web 16 is disposed adjacent the strike edge of the door stile while the web 18 is spaced from the strike edge. The web 18 is provided with vertically extending dovetail slots 20 which engage the member 22 which carries the door panel 24. The web portion 16 is spaced inwardly a short distance from the outer edges 12' and 14 of the front and rear walls 12 and 14 to thereby define a channel 23. An adjustable astragal 25 which will be described in more detail hereinafter is adapted to be received in the channel 23.

In accordance with the invention, a lock casing generally indicated at 26 passes through an opening 28 in the web 16 and is positioned in the interior of the hollow door stile 10. The lock casing 26 is a generally rectangular hollow member having top and bottom walls 30 and 32 which lie in planes parallel to each other but perpendicular to the planes of the front and rear walls 12 and 14 of the door stile 10. The top and bottom walls 30 and 32 of the lock casing are joined together by front and rear walls 34 and 36 which lie in planes substantially parallel to each other and also parallel to the front and rear walls 12 and 14 of the door stile.

In the form of the invention shown in Figs. 1-5, the lock casing 26 is provided at its end directed toward the strike edge of the door stile with attachment flanges or bracket members 38 and 40 which are respectively connectedv to the top and bottom walls 30 and 32 of the casing. The brackets or flanges 38 and 40 are attached to the web member 16 by means of screws 41 which pass through apertures 41' in the web 16 and serve to retain the casing 26 securely in position within the door stile 10.

The front wall 12 of the door stile and the corresponding Wall 36 of the lock case are provided with aligned circular apertures 43 and 43, respectively, to receive a lock cylinder 42 which may be of a conventional type. Similarly, the rear wall 14 of the door stile and the corresponding wall 34 of the lock case are provided with aligned apertures to receive another lock cylinder 42. The two lock cylinders 42 permit the door to be locked or unlocked from either the inside or outside of the door.'

Each of the lock cylinders 42 supports at its innermost end a key-operated locking cam 44 which is engageable with a horizontally slidable throw member 46 carried by the casing 26. The throw member 46 is movable into the actuated position shown in Figs. 1, 3 and 4 to engage a recess 48 provided in the door frame 15.

The throw member 46 is supported by the upper surface of the bottom wall 32 of the casing and is guided along its upper edge by track or guide members 50 which project laterally inwardly from the inner surfaces of the walls 34 and 36 of the lock casing. The throw member 46 is provided with a vertical recess 52 which extends downwardly from the upper surface of the throw member. A saddle 54 is vertically movable up and down in the recess 52. The saddle 54 is normally biased to an'upward position by a spring 56. One end of spring 56 bears against the underneath surface of the saddle 54 and the opposite end of the spring bears against the bottom surface of the recess 52. The upward movement of saddle 54 is limited by the guide members 50.

, When the throw member 46 is in an unlocked or retracted position, rotation of the key member in a direction which rotates the cam 44 in a counterclockwise di- 3 rectionwith respect to the view shown in Fig, 4 causes the cam 44 to depress the saddle member 54 against the upward biasing force of the spring 56. The cam 44 begins toforce the throw'member 46iforwardly= into lock In the position shown ainhig, 4,.thecam:

ing position. 44 is in dead center position. When the camis-moved just slightly beyond dead center in: atcounterclockwise:

direction, the force ofthe spring 56'will suddenly and.

forcibly raise the saddle 54 and eject the cam 44. fromthe slot 52, at the same time forcing; the throw member.

46 to its extreme advanced or locking, position. Tonnlock the door and return the throw member 46: to its: unlocked position, the key ofieitherrone of the cylinders: 42 is turned in such manner; as torotate the: camimenn ber 44 in a clockwise direction with respect to the view:

shown in Fig. 4 to thereby depressthe saddle54 against thecbiasingi force of the spring 56-and-v cam the throw member 46 to the, left toward the unlocked position. When the cam member 44 passes the deadcenter position shown: in. Fig. 4, the spring willforcibly raisetthe saddle 54 and eject the cam 58 from the slot 52 and, in.

so doing, force the throw member, 46' to its extreme. retracted or unlocked position.

Inthe modified construction shown in Fig. 6, the lock ders is provided with i an axially extendinggroove 62 on:

its outersurface and a set screw 64 passes through the outer face. of the lock .casingand into engagement with the groove of: the lock cylinder totherebyretain the lock cylinder in place.

As will :besrbe seen in the view of'Fig: 5; theiastragal, 25is provided'with antouter face 27 and a pair of in wardly. disposed edger members 29. The lateral width of the astragal is just slightly less than the lateral width of. thechannel 23 formed by the outer edges 12'- and 14' of the front. and rear walls 12 and 14: of the door stile so that the astragal is received within the channel 23.

The astragal 25f extends for the entire'height of thedoor stile and is spaced from the door stile preferably by means of. resilientspacer members 66, ofwhich two are The spacers 66 are disposed in shown inthedrawings. thespace between the'outer surface -ofweb 16 and the innet surface of the portion27 of the astragal. The as tragal 25, the resilient spacers 66 and the web 16 are respectivelyrprovided with aligned apertures 68, 74- and 72' through which screws: 70 pass to secure the astragal to the. web. The-clearance between the outer face 27- of the: astragal. and the strike edge of the'door'frame maybeadjustedtby-adjustment ofthe screws 70 to thereby adjust the spacing'between theastragal 25andthe web 16. Due to the resilient characteristiesofth'e spacer members-:66; these members change their dimensions to conform. to theichangedspacing of the astragal 25 with respectto theweb 16. The astragal is provided with a rectangularaperture 76 to permit passage ofthelock throw member 46L As canbeseen from the drawings, the shed aperture '76. issuch that throw member 46 substantially" fills the aperture whereby theouter face 27 of the astragal presents a substantially continuous appearance, unbroken by any lock face plate.

64"which retain'the-locking cylinders 42 in position-with out the necessity of removing the astragal.

It can be seenfrom the foregoing that th'ereis provided in accordancewith' this invention an improved assembly of a doorand locking mechanism in which the locking mechanism is contained in aneasily removable sub-assemblyizreceived within 'the door stile. Furthermore; the useofirthet-adjustable..=astragal. -permitseasy adjustment of the The astragal is also provided wit h' apertures 78 to permit adjustment of theset screws 4.. clearance between the door stile and the strike edge of the door frame and, at the same time, provides easy access to the lock casing contained within the door stile.

While there have been shown and described particular embodiments of the invention, it will be obvious to those skilled in the art that variouschanges and modifications can be made therein without departing from the invention and, therefore, it is aimedto cover all such changes and modifications as fall within the true spirit and scope of the invention.

What I claim as my invention is:

1. A door and lock assembly comprising a hollow door stile having front andf rear walls,.a webextending between said front and rearwalls anddefining therewith a channel opening toward the strike edge of said door stile, a lock mechanism positioned within said hollow door stile, said door stile web having an opening receivinga POIilOB'ZOf said. lock mechanism and said mechanism including a lock. throw member movable inwardly and. outwardl'y'with respect to the strike edge of. said door stile, and astragal received within said channel, said. astragalzextending substantially the full length of said door stile and having an opening therein. receiving said. lock throw member, said throw member being movable in+ wardlyand outwardly with respect to said strike-edge through. said astragal opening and substantially filling. saidi astragal. opening whereby said astragal presents a. substantially unbroken surface at the strike edge of said.

doorsti'le, and meansimounting said astragal in: said channel: inadjustable spaced relation tov said web.

2.xdoor and lock" assembly according to claim. 1

wherein said astragal mounting means includes resilient spacer'members located between saidastragal and said web;-

3; A" door and'l lock assembly comprising a hollow door stile having front and rear walls; a Web extending;

between; said'ifront and rearwallsand definingtherewith a channel opening toward the strike edge of said door stile, a lock mechanism positioned within said hollow ber extending through the trout wall of said door stile and having a key receiving opening therein, means" in said lock mechanism engaging said lockcylinder to maintain-saidcylind'er in a predetermined position with re-' spect to said front wall, an astragal received within said channel, said astragal extending substantially the full length ofsaid door stile and having an opening therein providing access to said lock cylinder engaging means,

said 'astr agal also having an opening therein receiving said locl'throw member, said throw member being movable inwardly and outwardly with respect to said strike-edgethrough said opening and'substa'ntia'lly filling said openingwh'ereby said astragal presents a substantially unbroken" surface atthestrike edge of said door stile, and means" mounting said astragal in said channel in adjustable spaced relation to said'weh.

4? A door andlock assembly comprising a hollow" door stile havingffont' and rear walls; a web' extending between-said front and'rear walls and'defining therewith a channelopening toward-the strike edge of said door'stile, a loclc'mechanism positioned within said hollow doorstile; said door stile web having an opening receiving a portion of said lock mechanism and said mechanismineluding alock throwmember movable inwardly and outwardly with respect to the strike edge of said door stile, two lock cylinders each operable tomove'said' lock throw member, one'of said cylinders extendingthrough the front wall of said door stile and the other cylinder extending through the rear wall ofsaid door stile, both cylinders having a key receiving opening therein whereby the -door -can be' l'ockedfromeither'side, an astragal-received within said channel, said astragal extending substantially the full length of said door stile and having an opening therein receiving said lock throw member, said throw member being movable inwardly and outwardly with respect to said strike edge through said astragal opening and substantially filling said astragal opening whereby said astragal presents a substantially unbroken surface at the strike edge of said door stile, and means mounting said astragal in said channel in adjustable spaced relation to said web.

5. A door and lock assembly according to claim 4 wherein said lock mechanism includes means engaging each lock cylinder to maintain said cylinder in a predetermined position with respect to the wall through which said cylinder extends, and said astragal includes openings providing access to said cylinder engaging means.

6. A door and lock assembly comprising a hollow door stile having front and rear walls, a web extending between said front and rear walls and defining therewith a channel opening toward the strike edge of said door stile, a lock mechanism including a lock casing having flange members extending therefrom and engaging said web to retain said mechanism in position within said hollow door stile, said web having an opening therein receiving said lock casing and said casing being movable outwardly with respect to said door stile through said opening, said lock mechanism also including a lock throw member, an astragal received within said channel, said astragal extending substantially the full length of said door stile and having an opening therein receiving said lock throw member, said throw member being movable inwardly and outwardly with respect to said strike edge through said astragal opening and substantially filling said astragal opening whereby said astragal presenst a substantially unbroken surface at the strike edge of said door stile, and means mounting said astragal in said channel in adjustable spaced relation to said web.

7. A door and lock assembly comprising a hollow door stile having front and rear walls, a web extending between said front and rear walls adjacent the strike edge of said door stile, a lock mechanism positioned within said hollow door stile, said door stile web having an opening receiving a portion of said lock mechanism and said mechanism including a lock throw member movable inwardly and outwardly with respect to the strike edge of said door stile, an astragal overlying said web, said astragal extending substantially the full length of said door stile and having an opening therein receiving said lock throw member, said throw member being movable inwardly and outwardly with respect to said strike edge through said astragal opening and substantially filling said astragal opening whereby said astragal presents a substantially unbroken surface at the strike edge of said door stile, and means mounting said astragal in overlying relation to said web.

8. A door and lock assembly according to claim 7 wherein said astragal mounting means is adjustable and includes means for maintaining said astragal in adjustable spaced relation to said web.

9. A door and lock assembly comprising a hollow door stile having front and rear walls, a web extending between said front and rear walls adjacent the strike edge of said door stile, a lock mechanism positioned within said hollow door stile, said door stile web having an opening receiving a portion of said lock mechanism and said mechanism including a lock throw member movable inwardly and outwardly with respect to the strike edge of said door stile, a lock cylinder for moving said lock throw member extending through the front wall of said door stile and having a key-receiving opening therein, means in said lock mechanism engaging said lock cylinder to maintain said cylinder in a predetermined position with respect to said front wall, an astragal overlying said web, said astragal extending substantially the full length of said door stile and having an opening therein receiving said lock throw member, said throw member being movable inwardly and outwardly with respect to said strike edge through said opening and substantially filling said opening whereby said astragal presents a substantially unbroken surface at the strike edge of said door stile, and means mounting said astragal in adjustable spaced relation to said web.

References Cited in the file of this patent UNITED STATES PATENTS 953,995 Gray Apr. 5, 1910 1,073,160 Newpher Sept. 16, 1913 1,245,617 Prinzler Nov. 6, 1917 1,283,131 Fitzpatrick Oct. 29, 1918 1,922,860 Powell Aug. 15, 1933 1,981,289 Schlage Nov. 20, 1934 2,579,861 Ray et al. Dec. 25, 1951 2,601,775 Jewett et al July 1, 1952 2,605,869 Backman Aug. 5, 1952 2,644,554 Katz July 7, 1953 OTHER REFERENCES Construction Details, Entrances, Doors, Frames, and Trim, The Kawneer Company, 732 North St., Niles, Mich. Peltriphlet) Sept. 29, 1948; 930 Dwight Way, Berkeley,

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