US2988909A - Door lock - Google Patents

Description

June 20, 1961 C, Q MOLER 2,988,909

DOOR LOCK Filed March 2, 1959 2 Sheets-Sheet 1 INVENTOR.

Charles C. Meier Um-Q @M C. C. MOLER DOOR LOCK June 20, 1961 2 Sheets-Sheet 2 Filed March 2, 1959 r M mw m NO Mmom 5 wv.

Y Www B 2,988,909 Patented June 20, 19.61

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2,988,909 DOOR LOCK Charles C. Moler, Hartford City, Ind., assignor to Overhead Door Corporation, Hartford City, Ind., a corporation of Indiana Filed Mar. 2, 1959, Ser. No. 796,349 12 Claims. (Cl. 70-146) This invention relates to a lock assembly for upwardly 4acting doors, particularly desirable for use in connection with doors which are slidably associated with tracks.

The main objects of this invention are:

First, to provide a door and lock assembly in which the latch automatically engages when the door is moved to closed position and is provided with means for locking from the inside of the door against manipulation from the outside of the door, and one which is provided with a key-controlled lock actuating means operable from the outer side of the door.

Second, to provide a lock structure having these advantages which may be assembled with a door without substantial modifications in the structure thereof.

Third, to provide a lock structure with latch release means operable from the outer side of the door provided with a detent for holding the latch in disengaged position with tripping means therefor acting when the door is moved from closed position so that the latch will be operative when the door is returned to closed position.

Objects relating to details and economies of the invention will appear from the description to follow. The invention is dened in the claims.

A structure which embodies the features of the invention is clearly illustrated in the accompanying drawing, in which:

FIG. 1 is a fragmentary front elevation view of a door and door frame or wall illustrating an application of the invention.

FIG. 2 is an enlarged fragmentary view on a line corresponding to line 2-2 of FIG. 1.

FIG. 3 is an enlarged fragmentary view mainly in vertical section `on a line corresponding to line 3-3 of FIG. 1.

FIG. 4 is a fragmentary view partially in section on a line corresponding to line lA-l of FIG. 2 with the manually manipulatable latch lock member shown in open position by full lines and in locking position by dotted lines.

FIG. 5 is an inside perspective view of the base plate or support memberwith the housing removed.

FIG. 6 is a fragmentary view partially in horizontal section of an adaptation of the invention to a door having metal panels and also illustrating the latch in engaged position by full .lines and in released position by dotted lines, the housing member being partially broken away.

In the accompanying drawing 1 represents a door frame provided with a jamb 2. The door 3 is of the upwardly acting sectional type comprising a plurality of hingedly connected sections. The hinges are not illustrated as they form no part of thisinvention. The door sections are provided with track engaging rollers 4, tracks 5 of the channel type being provided. These tracks are mounted onbrackets or supports 6.

The Ilock comprises a base plate or support member 7, preferably a-sheet metal stamping consisting of a web portion 8 provided with holes-9 adapted to receive attaching screws. This base plate is mounted on one of the door sections adjacent one vertical edge thereof and is provided with an outer inwardly or rearwardly projecting arm 10 -at one end thereof and having. a slot 11 therein. The base plate is provided vwith an inner ange 12 having a horizontal slot 13 therein. The base plate or support member7ha's apivot e`a`r'14 struck from the web Vthereof and to which the downwardly projecting pivot 15 is secured to pivotally support the latch 16 which is provided with a pivot engaging ear or lug "17. The coiled spring 18 is arranged on the pivot with one armv 19 thereof yengaging the latch supporting ear 14 and the other arm 19 engaging the latch.

The latch is provided with a keeper engaging member 20 projecting through the slot 11 in the arm 10 of the baseV plate 7 and with a nger piece 21 at its opposite end projecting through the slot 13 in the flange 12- thereof. The track is provided with a keeper 22 with which the latch engages when the door is in its fully closed posi-l tion. The latch may be disengaged by pressure on the' ingerpiece 21 or by means of the spring biased lockablepush button 23 which is arranged in a cylinder 24,' desirably fixedly secured to the base plate as indicated at 25,`

FIG. 3. The door has a bore 26 therein to receive this cylinder. The details of this lockable push button are not illustrated Ias they form no part of the present inven- A key is shown at 2S and may be manipulated to engage the push button bolt 29 with either the keeper opening 30 or the keeper opening 31'. The keeper opening 30 is positioned to receive the bolt of the push button when' being positioned at the inner side of the tripping end of the latch 16, see FIGS. 3, 4 and 5.

With this arrangement the latch can be operated from the inner side of the door by means of the iingerpiece 21.Y When the push button is locked in its inner position there manipulation e is sufficient clearance to permit the releasing of the latch from the inner side of the door.

To prevent release of the latch from the outer side of the door by manipulation of the push button when it is unlocked I provide a latch locking member 34 which is pivoted on the stud 35 projecting from the base plate and is provided with an inwardly projecting iingerpiece 36.

At its inner end the latch lock member 34 is provided With a stud 37 which engages behind the latch as illus- `trated in FIGS. 4 and 5, preventing any manipulation of the latch, either from the inside or outside of the door,

until the latch locking member 34 is moved to latch disengaging position a shown by full lines in FIG. 4.'

The lock is also preferably provided with a springable detent 38 mounted on the base plate below the lever 32 and in engagement therewith as shown in FIG. 3 so that when the lever 32 is actuated by the push button to release the latch, the lever is held in latch releasing position. This is of advantage in the event the operator releases the latch through the push button and does not hold the push button in latch releasing position until the latch by opening movement of the door is moved out-of keeper engaging positon.

closed position the trip member 39 is provided, positioned above the keeper to engage the latch as shown in FIG. 3`

and thereby disengage 'the lever 32 Vfrom the detent 38. The latch is provided with a housing 40 which encloses all the parts with the exception of the keeper engaging portion of the latch, the iingerpiece thereof and tion, The push button is outwardly biased by the spring To insure that the latch shall be in keeper engaging position on the return of the door to 43 of arcuate form disposed above the push button to protect the projecting end thereof.

FIG. 6 illustrates an adaptation of the invention to a door having metal panels 44. The structure is the same as described with the exception that the base plate 45 is provided with a rib or embossment 46 toA compensate for the rib 47 on the door. Only one of the fasteners 48 is illustrated.

With this arrangement of parts the door may be securely locked in closed position and may be locked from either the inner side or the outer side, but when locked from the inner side it is necessary to unlock it from the inner side. It locked from the outer side it maybe unlocked `from the outer side.

While I have illustrated the invention as. embodied in an upwardly acting door `for which it isfparticularly desirable, it is desirable for use in other closures of the sliding` type.

Having thus described the invention, what-is claimed asnew and is desired to be secured by Letters Patent'is.:

l. In combination with an upwardly acting door assembly comprising a door and tracks with which the-door is4 slidably associated, a lock comprising a base memberv mounted on the inner side of the door adjacent a vertical edge thereof and to a track and having spaced inwardly projecting outer and inner slotted arms and an inwardly projecting pivot ear intermediate said arms, a latch provided with a pivot mounted on said ear and having an angled keeper engaging element disposed through the slot of the outer arm and an inwardly p rojecting inwardly olfset ngerpiece disposed through the slot of the inner arm, a coiled spring disposed on the latch pivot with one end thereof engaged with said ear and the other with said latch and acting to yieldingly urge theA latch to keeper engaging position, a keeper projecting inwardly from said track positioned to be engaged by said latch when the door is in closed position, a latchY release lever pivotally mounted on the inner side of said inner arm ofV said base plate with its upper end disposed onA the outer side of said latch, a spring biased lockable push button disposed through the door in operative relation to said latch release lever and provided with key actuated means for lockingly retaining it in actuated latch disengaging position or for locking it in projected position, a detent disposed to engage said latch actuatinglever whenactuated by saidV push button to keeper disengaging position, an'outwardly facing trip member disposed on said track in upwardly spaced relation-to said keeper and acting to disengage the latch from said detent when the door is raised from-its closed-keeper engaging position, and an inner manually operable latch lock member pivotally mounted on said base plate for manual adjustment to and `from latch locking position.

2. In combination with an upwardly acting door assemblycomprising a door and tracks with which the door isslidably associated, a lock comprising a base member mounted on the inner side of the door adjacent a vertical edge thereof and to a track and having spaced inwardly projecting outer and inner slotted arms and an inwardly projecting pivot ear intermediate said arms, a .latch provided with a pivot mounted on said ear and having an angled keeper engaging element disposed through the slot of the outer arm and an inwardly projecting, inwardly olfset iingerpiece disposed through the slot of the inner arm, a coiled spring disposed on the latch pivot with one end thereof engaged with said ear and the other with said latch and acting to yieldingly urge the latch to keeper engaging position, a keeper projecting inwardly from said track positioned to be engaged by said latch when the door is in closed position, a latch release lever pivotally mounted on the inner side of said inner arm of said base plate with its upper end disposed on the outer side of said latch, a spring biased lockable push button disposed through the door in operative relation toY said lever and provided with key actuated means for lockingly retaining it in actuated latch disengaging position or for locking it in projected position, and an inner manually operable latch lock member pivotally mounted on said base plate for manual adjustment to and from latch locking position.

3. The combination with an upwardly acting door assembly comprising a door and tracks with which the door is slidably associated, of a lock comprising a base member mounted on the inner side of the door adjacent a vertical edge thereof and to a track, a spring biased latch pivotally mounted on said base member and having a ngerpiece at its inner end, a keeper projecting inwardly from said track positioned to be engaged by said latch when the door is in closed position, a latch release lever pivotally mounted on said base member with one end disposed' on the outer side of said latch, a spring biased lockable member disposed through the door in operative relation to said lever and provided with key actuatedv means for lockingly retaining it in actuated latch dsengaging position or for locking it in retracted position, a springable detent on said base member disposed to engage said latch actuating lever when actuated by said push button to latch disengaging position, a trip member disposed in upwardly spaced relation to said keeper and acting to disengage the latch actuating lever from said detent when the door is raised from its locking position, and an inner manually operable latch lock member pivotally mounted on said base plate for manual adjustment to and from latch locking position.

4. The combination with an upwardly acting door assembly comprising a door and tracks with which the door is slidably associated, of a lock comprising a base member mounted on the inner side of the door adjacent a vertical edge thereof and to a track, a spring biased latch pivotally mounted on-said base member and having a ingerpiece at its inner end, a keeper projecting inwardly from said track positioned to be engaged by said latch when the door is in closed position, a latch release lever pivotally mounted on said base member with one'end disposed on the outer side of'said latch, a spring biased lockable member disposed through the door in operative relation to said latch release lever and provided with key actuated means for lockingly retaining it in actuated latch disengaging position or for locking it in projected position, andan inner manually operable latch lock member pivotally mounted on said base plate for manual adjustment to and from latch lockingy position.

5. The combination with an upwardly acting door assembly comprising a door and tracks with which the door is slidably associated, of a lock comprising a base member mounted on the inner side of the door adjacent a vertical edge thereof and to a track, a spring biased latch pivotally mounted on said base member and having a fingerpiece at its inner end, a keeper projecting inwardly from said track positioned to be engaged by said latch when the door is in closed position, a latch release lever pivotally mounted on said base member with one end disposed on the outer side of said latch, a spring biased lockable member disposed through the door in operative relation to said latch release lever and provided with key actuated means for lockingly retaining it in actuated latch disengaging position or for locking it in projected position, an inner manually operable latch lock member pivotally mounted on said base plate for manual adjustment to and from latch locking position, and a housing'member mounted on said base plate to enclose the parts mounted thereon with the latch keeper engaging element, the latch ngerpiece and the latch locking member projecting therefrom.

6. The combination with an upwardly acting door assembly comprising a door .and tracks with which the door is slidably associated, of a lock comprising a base member mounted on the inner side of the .door adjacent avertical edge thereofand toa track, a springtbiased. latch piv- .5 otally mounted on said base member and manually vreleasable from the -inner side ofthe door, a keeper on said track positioned to be engaged by said latch when the door 4is in -closed position, a lockable latch release member operable from the outer side of the door and provided with key actuated means for lockingly retaining it in actuated latch disengaging position or for locking it in projected position, a detent operatively associated with said latch release member for holding it in actuated latch disengaging position, a trip member disposed in upwardly spaced relation to said keeper and acting to disengage the latch release member from said detent when the door is raised from its locking position, and a manually operable latch lock member mounted on said base member for manual adjustment to and from-latch locking position.

7. The combination with an upwardly acting door assembly comprising a door and tracks with which the door is slidably associated, of a lock comprising a base member mounted on the inner side of the door adjacent a vertical edge thereof and to -a track, a spring biased latch pivotally mounted on said base member and manually releasable from the inner side of the door, a keeper on said track positioned to be engaged by said latch when the door is in closed position, a lockable latch release member operable from the outer side of the door and provided with key actuated means for lockingly retaining it in actuated latch disengaging position or for locking it in projected position, and a manually operable latch lock member mounted on said base member for manual adjustment to and from latch locking position.

8. A lock assembly for slidably mounted closures comprising a base member having spaced inwardly projecting outer and inner slotted arms on the opposed edges thereof and an inwardly projecting pivot ear intermediate said arms, a latch provided with a pivot mounted on said ear and having an angled keeper engaging element disposed through the slot of the outer arm and an inwardly projecting inwardly offset lingerpiece disposed through the slot of the inner arm, a coiled spring disposed on the latch pivot with one end thereof engaged with said ear and the other end with said latch and acting to yieldingly urge the latch to keeper engaging position, a latch release lever pivotally mounted on the inner side of said inner ar-m ot said base member with one end disposed on the outer side of said latch, a lockable push button assembly operatively associated with said latch release lever and provided with key actuated means `for lockingly retaining it in actuated latch disengagi-ng position or lfor locking it in projected position, a keeper, a springable -detent `disposed on said base member to engage Said latch release lever when actuated by said push button to latch actuated disengaging position, a trip member disposed in spaced relation to said keeper and acting to disengage the latch release lever from said detent when the closure member on which the lock is mounted is moved from closed position, and an inner manually operable latch lock member mounted on said base member for manual adjustment to and from latch locking position.

9. A lock assembly for slidably mounted closures comprising a base member having inwardly projecting outer and inner slotted arms on the opposed edges thereof and an inwardly projecting pivot ear intermediate said arms, a latch provided with a pivot mounted on said ear and having an angled keeper engaging element disposed through the slot of the outer arm and an inwardly projecting inwardly oifset fingerpiece disposed through the slot of the inner arm, a coiled spring disposed on the latch pivot with one end thereof engaged with said ear and the other end with said latch and acting to yieldingly urge the latch to keeper engaging position, a latch release lever pivotally mounted on the inner side of said inner arm of said base member with one end disposed on the outer side of said latch, a lockable push button assembly operatively associated with said lever and 6 provided with'key actuated means for locking'ly retaining it in actuated latch disengaging position or for locking itin projected position, and an inner manually operable latch member mounted on said base member for manual adjustment to and from latch locking position.

l0. A lock assembly for slidably mounted closures comprising a base member, a spring biased latch having a keeper engaging element at one end and a iingerpiece at the other, a latch release lever pivotally mounted on said base member for actuating said latch to keeper disengaging position, a manually operable spri-ng biased latch release member provided with key actuated means for lockingly retaining it in actuated latch disengaging position or for locking it in projected position, a keeper, a detent disposed to automatically engage said latch release lever when actuated by said latch release member to keeper disengaging position, a trip -member disposed in spaced relation to said keeper and acting to disengage the latch release lever from said detent when the closure member on which the lock is mounted is moved from closed position, and an inner manually operable latch lock member mounted on said base member for manual adjustment to and from latch locking position.

11. A lock assembly tfor a slidably mounted closure comprising a base member adapted to be mounted on the inner side oi the closure, a spring biased keeper engaging latch pivotally mounted on said base member for swinging laterally relative to the path of travel of the closure on which the base member is mounted, said latch 'having a keeper engaging portion at its outer end projecting laterally from the base member for engagement with a keeper and a finger piece portion at its inner end projecting from said base member, a release lever disposed transversely of said latch pivotally mounted on said base member with one end in overlapping relation to said latch laterally of its pivot, a manually operable spring biased combined latch release and lock member mounted on said base member to coact with the other end otE said release lever and to project through and manipulatable from the outer side of the closure on which the base member is mounted, said latch release and lock member including key actuating means for selectively locking it in its projected position in which position said release lever may move on its pivot independently thereof and also for lockingly retaining it in its actuated position, and an inner manually operable lock member adjustably mounted on said base member for manual adjustment to and from engagement with said latch and acting when engaged therewith to hold said latch in keeper engaging position, said inner lock member being accessible only from the inner side of the closure on which said base member is mounted.

12. A lock assembly for a slidably mounted closure comprising a base member adapted to be mounted on the inner side of the closure, a spring biased keeper engaging latch pivotally mounted on said -base member for swinging laterally relative to the path of travel of the closure on which the base member is mounted, said latch having a keeper engaging portion at its outer end projecting laterally from the base member for engagement with a keeper and a nger piece portion at its inner end projecting from said base member, a release lever disposed transversely of said latch pivotally mounted on said base member with one end in overlapping relation to said latch laterally of its pivot, a manually operable spring biased combined latch release and lock member mounted on said base member to coact with the other end of said release lever and to project through and manipulatable from the outer side ot the closure on which the base member is mounted, said latch release and lock member including key actuating means for selectively locking it in its projected position in which position said release lever may move on its pivot independently thereof and also for lockingly retaining it in its actuated position.

(References on following page) References Cited in the file of this patent UNITED STATES PATENTS Cox May 17; 19.10' Grossmann Aug.v 18,1914 5 Herzng July 6, 1,926

8 Rand May 16, 1933 Ford Oct. 8. 1.935 Scboorel Aug. 1.1, 19,36 Boland Sept. 26, 1-939 Wolf et al. May 1-7, 1955 Stroup Ian. 6,V 1959

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