US3177687A

US3177687A - Locking and latching means for sliding panel doors

Info

Publication number: US3177687A
Application number: US289799A
Authority: US
Inventors: Tucker Morton
Original assignee: Individual
Current assignee: Individual
Priority date: 1963-06-24
Filing date: 1963-06-24
Publication date: 1965-04-13
Anticipated expiration: 1982-04-13

Description

M. TUCKER April 13, 1965 LOCKING AND LATCHING MEANS FOR SLIDING PANEL DOORS Filed June 24, 1963 2 Sheets-Sheet 1 M. TUCKER April 13, 1965 LOCKING AND LATCHING MEANS FOR SLIDING PANEL DOORS 2 Sheets-Sheet 2 mmm;

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Filed June 24, 1963 FIG.9

INVENTOR MORTON TUCKER www ATTORNEY ...nel L United States Patent O 3,177,687 LOCKING AND LATCHING MEANS FR SLIDING PANEL DOORS Morton Tucker, 1395 E. 11th Ave., Hialeah, Fla. Filed June 24, 1963, Ser. No. 239,799 6 Claims. (Cl. 70-97) This invention relates to a latch device for sliding doors of the type generally known as sliding glass panel doors wherein the glass panel is encompassed by an extruded aluminum frame that is movable in a wall opening to be latched and unlatched at the end of the opening.

The device comprises a leading jamb rail for the door` wherein is disposed the latch mechanism and with the latch mechanism embodying both a iinger turn knob and also a cylinder lock mechanism for moving a latch hook and with the cylinder being key operated from the outside of the door and with the latch hook being activated to a spring biased position to override a keeper carried by the main frame disposed in the door opening. The invention further contemplates a casting that is fitted into an elongated opening and having fixed mounting therein by screws that pass through a handle device for sliding the door from the inside while the casting is provided with an elongated recess constituting a finger opening for shifting the door from the outside.

t Novel features of construction and operation of the device will be more clearly apparent during the course of the following description, reference being had to the accompanying drawings wherein has been illustrated a pre- FIGURE lis a perspective view of sliding doors of the f type that overlap each other and are mounted within a main frame disposed within a wall opening,

FIGURE 2 is a fragmentary section taken through the leading jamb member of the door frame,

FIGURE 3 is a view taken substantially on line 3 3, looking in the direction of the arrows and with the latch mechanism being shown` in elevation,

FIGURE 4 is a vertical section taken substantially on line 4 4 of FIGURE 2,

FIGURE 5 is a detailed sectional view illustrating a connection between the cylinder lock mechanism and the latch hook` and illustrating a slide link,

FIGURE 6 is a View similar to FIGURE 2 but showing the latch `hook in a depressed position under the influence of a iinger knob, y

FIGURE 7 is a view similar to FIGURE 2 but illustrating the iinger knob in the release position with respect to the latch hook,

FIGURE 8 `is a side elevation of the leading jamb member of the door showing the nger knob in the release position of FIGURE 7, and

FIGURE 9 is a horizontal section taken on line 9-9 of FIGURE 4. t

Referring specifically to the drawings, there has been illustrated a tubular extruded leading jamb member 5 that is provided with an inwardly opening channel 6 formed -by side walls 7 and 8 and a vertical partition 9. The side wall 8 is slotted at 10 for receiving a casting 11. The casting 11 is provided with an elongated finger recess 12. The upper and lower ends of the casting are provided with cylindrical studs 13 that are apertured and threaded at 14 to receive screws 15 that pass through apertures 16 formed in a base plate 17 carrying a handle 18 that is disposed upon the wall 7 and with the wall being apertured to receive the screws and whereby the handle and the casting will be securely mounted within the opening 19 of the jamb member 20.

3,177,687 Patented Apr. 13, 1965 ICC Cast integral with the castingrll are upper and lower rings or sockets 21. The sockets face in opposite directions whereby the casting may be inverted for opposite ends of a door structure. As shown in the drawings, the upper socket 21 receives a lock cylinder 22, such lock cylinder having an outer tiange 23l and with the cylinder being locked within the sockets by a split ring 24. The casting 11 is lianged at 25 to overlie the wall 8 and whereby the casting will be clamped securely into the opening of the jamb member under the influence of the screws 15.

Fixed upon the cylinder 22 is a cylinder arm 26, preferably formed of nylon and the arm 26 is held against turning with respect to the cylinder of the lock by screw 27. The arm 26 is provided with a stop lug 28 that has abutting engagement with the adjacent stud 13 and whereby to limit the upper movement of the cylinder arm. One end of the arm 26 is pivotally connected at 29 to a slip link 3l), the link embodying an upper section 31 and a lower section 32. The

sections

31 and 32 are slidable with respect to each other and held against displacement by a key 33 (FIG. 6). The lower section 32 is pivotally connected at 34 to an arm` 35 of a latch hook `36. The latch hook 36 is pivotally mounted at 37 upon aV stud 38 carried by the casting 11. The means for retaining the arm 35 upon the pivot 34 and also the retaining meansV for the latch hook upon the stud 38 is by C-

rings

39 and 46. The latch hook is biased to a latching position by a spring 41 that is wrapped around the stud 38 with its arms bearing against the pivot 34 and a stud 42 and with the stud also projecting outwardly from the casting 11. The cylinder arm is limited in its opposite turning position by abutment against a stud 43 in which position, the latch hook is held in a release position.

Rotatable upon a stud V44, formed` integral with the cast ing l1 is a preferably nylon latch cam 45; The latch cam is disposed in overlying relation to the latch hook 35 and functions to release the latch hook from a downward position to a spring biased upward position. The latch cam is movable under the influence of a pin 46, extending into In the use of the device, assuming that the cylinder 22 has been mounted in the socket 21 at the upper part of the casting, the casting and the associated mechanism with respect to the linkage and the latch hook is all slipped into the opening 10 of the side wall 8. The handle is then assembled by passingscrews 15 into the studs 13. It being assumed of course that the latch handle Sil has irst been engaged with the latch cam and then the parts fastened together, clamping the liange 25 to the plate 8 while the base plate 17 of the handle maintains the latch mechanisrn in mounted position and with the latch handle and associated mechanism being held against separation. The latch hook 36 is disposed behind an opening S1 that receives a keeper that is xed to the vertical jamb of the main frame member. The keeper riding over a beveledL end 36 of the latch hook 36 and since the latch hook is biased upwardly by the spring 41, the keeper will be iirmly engaged behind the hook 36'. When the lock is to be open from the outside, the key must be employed and through the slip linkage, the latch hook will be forced downwardly to a release position. When the latch is to be engaged in a locked position upon the inside of the door, the latch handle 5d is rotated to cause the cam 45 to bear against the upper marginal edge of the latch arm 35 and rock the latch 36 downwardly to the position illus- 3) trated in FGURES 6 and 7. In order to lock the door from the inside, the latch handle 50, is swung toa vertical position, permitting the springs 41 to swing the latch hook upwardly and then, assuming that the door is to be opened from the outside, the key is employed, forcing the slip linkage 30 downwardly, causing the latch hook to be released from the keeper. The mechanism is very simple although positive in its action and the casting 1l. can be employed to mount the latchV mechanism at either end of the door. Instead of using a pull handle as shown in FIGURE 3, a cover plate may be employed to overlie the hub 48 of the latch handle Sil.

It is to be understood that the invention is not limited to the precise construction shown, but that changes are contemplated as readily fall within the spirit of the invention as shall-be determined by the scope of the subjoined claims.

I claim:

1. A. lock and latch mechanism for sliding glass panel doors of the type comprising an extruded metallic frame having `a hollow leading jamb member, the forward wall of which is apertured for the passage of a keeper that is fixedly connected to a jamb member of a wall frame, an outer wall of theY door being slotted for the passage of a body portionof a lock and latch mountingmember, means for ixedly positioning the mounting member into the jamb, studs formed upon the member and with certain of thestuds constituting pivot posts, a latch hook pivotally supported upon a lower post and biased to a latehing position with the keeper, a cam plate pivotally supported upon a next adjacent post to be in parallel overlying engagement with the latch, a shaft connected to the cam plate and extending through the inner side of the jamb,a crank arm fixed to an outer extended end ofthe shaft and whereby to rotate the cam plate to move the latch hook to and from a latchedposition with respect to the keeper, the mount-v ing-member adjacent each endbeing provided with socket forming` members, anupper socket constituting a mounting guide for a key-actuated cylinder lock, a cylinder arm.

fixed to the inner end of the lock, the arm being connected to the latch hook, a second arm projecting from the cylinder armand also limiting the turning movement of the cylinder lock.

2. A lock and latch mechanism for sliding glass panel doors of the type wherein a metallic frame supports a glass panel and with the doors movable across a wall supported frame device, the door including a jamb member upon its leading edge and with the jamb member being of hollow extruded metal, one outer side of the jamb member being provided with an elongated slot, a lock and latch supporting member disposed within the slot and havinga marginal flange that overlies the opening, a pull handle disposed upon the inner side of the frame and screw devices extending through the pull device and into upper and lower lugs of the mounting member and whereby to simultaneously clamp the mounting member and the handle rigidly with respect to the jamb, the mounting member beingprovided with a plurality of horizontally disposed studs andwith several of the studs constituting pivotal posts, the mounting member upon its outer side being provided with an elongated recess to constitute a hand pull for the door, a hooked latchpivotally rotatable upon a lower stud and with the latchhaving a lower arm that is provided with a hook that extends across an aperture formed in the leading side Of, the jambV and whereby to engage and disengage a keeper that is fixed at an adjacent side of the wall frame, the hook latch being biased to a latchingposition byV a spring device, a cam plate rotatably supported upon a stud next adjacent to the stud for the latch, a shaft extending through the cam plate and locked thereto and with the shaft extending throughk an opening formed` in' the inner side wall of the jamb, a latch handle xed upon the shaft and projecting beyond an opening formed in the base of the pull handle and whereby to rotate the cam plate, the cam plate being in vertical alignment with a leg portion of the latch device and whereby the latch device may be'forced downwardly to a release position, the mounting member at its opposite end portions being providedA with sockets, an upper socket adapted to re-V ceivea key actuated cylinder lock that extends inwardlyV from the ilange of the mounting member, a cylinder arm fixed to the inner end of the cylinder lock and with the cylinder arm beingv bifurcated and with oneA leg of the bifurcation being connected to an arm of the latch device and whereby the latch device may be actuated to a release position by a key, the latch arm and the latch device being connected by a lost motion link'and` whereby the latch device may be movable under the influence oty the cam plate or the cylinder lock, the secondV arm of biased upwardly by the springwhen the cam plate is` swungV to an upper position andfwhereby. a keeper may engage through the aperture of the leading end wall to override the hooked end.

4. The structure according to claim Zwherein the lost motion linkage is pivotallyconnected to an upper arm of the latch and with the linkage being spaced from the` arm of the latch by a bushing.,

5. The structure according. to claim 2 wherein aange of the pull handle isrecessed-upon tsinnerside to re-V ceive apartof the'hub of the shaft'of the cam plate to constitute a bearing for the huby and tol prevent displace-V ment of the hub and the said shaft.

6. The structure according to ,claim 3 wherein the "biasing spring for the hooked latch is wrappedabout the pivot` studs for the latchand with one end of the springY bearing V against alower-most post, the'upper endof. the spring bearing against a spacer bushing betweentthe upper arm of the-latch device and the ilost motion linkage, the latch devicebeingreleasable fromthe keeper by. the cylinder lock from the outside of the door while the latchfdevicek may bereleased by the cam plateandfthe shaft of: said Y cam plate from the'inside'ofrthe door.

References Cited-bythev Examiner UNITED STATES PATENTS 2,736,185 2/56 Collar V, 70-100 2,990,208 6/61 Miner 70-97 3,041,097

ALBERT H. KAMPE, Primary Examiner, BOBBY R. GAY, Examiner,

6/.62 Eads 292f-1l3

Claims

1. A LOCK AND LATCH MECHANISM FOR SLIDING GLASS PANEL DOORS OF THE TYPE COMPRISING AN EXTRUDED METALLIC FRAME HAVING A HOLLOW LEADING JAMB MEMBER, THE FORWARD WALL OF WHICH IS APERTURED FOR THE PASSAGE OF A KEEPER THAT IS FIXEDLY CONNECTED TO A JAMB MEMBER OF A WALL FRAME, AN OUTER WALL OF THE DOOR BEING SLOTTED FOR THE PASSAGE OF A BODY PORTION OF A LOCK AND A LATCH MOUNTING MEMBER, MEANS FOR FIXEDLY POSITIONING THE MOUNTING MEMBER INTO THE JAMB, STUDS FORMED UPON THE MEMBER AND WITH CERTAIN OF THE STUDS CONSTITUDING PIVOT POSTS, A LATCH HOOK PIVOTALLY SUPPORTED UPON A LOWER POST AND BIASED TO A LATCHING POSITION WITH THE KEEPER, A CAM PLATE PIVOTALLY SUPPORTED UPON A NEXT ADJACENT POST TO BE IN PARALLEL OVERLYING ENGAGEMENT WITH THE LATCH, A SHAFT CONNECTED TO THE CAM PLATE AND EXTENDING THROUGH THE INNER SIDE OF THE JAMB, A CRANK ARM FIXED TO AN OUTER EXTENDED END OF THE SHAFT AND WHEREBY TO ROTATE THE CAM PLATE TO MOVE THE LATCH HOOK TO AND FROM A LATCHED POSITION WITH RESPECT TO THE KEEPER, THE MOUNTING MEMBER ADJACENT EACH END BEING PROVIDED WITH SOCKET FORMING MEMBERS, AN UPPER SOCKET CONSTITUTING A MOUNTING GUIDE FOR A KEY-ACTUATED CYLINDER LOCK, A CYLINDER ARM FIXED TO THE INNER END OF THE LOCK, THE ARM BEING CONNECTED TO THE LATCH HOOK, A SECOND ARM PROJECTING FROM THE CYLINDER ARM AND ALSO LIMITING THE TURNING MOVEMENT OF THE CYLINDER LOCK.