US2253496A - Sliding door lock and finger grip - Google Patents

Description

Aug. Z6, 1941.

H. CORDREY ET AL SLIDING DOOR LOCK AND FINGER `GRIP .Fild Jan. 15, 1941v may',

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Patented Aug. 26, 1941 2,253,496 sLlDlNG DOOR LOCK AND FINGER GRIP Hancil Corrlrey and Walter J. Duvall, Chula Vista, Calif., assgnors to Ralph L. Long, San Diego,

Calif.

Application January 15, 1941, Serial No. 374,534 8 Claims. (Cl. 292-182) This invention relates to a sliding door lock and linger-grip which is embodied in a single construction, and possesses the advantage of combining simplicity and compactness with a superior traction means for being manually grasped to slide the door.

More specifically speaking, the invention includes, as one of its important features, an apertured finger grippable pull which normally extends only slightly beyond the front edge of the sliding door, but which in such position, is manually grippable to be farther extended preparatory to admitting one or more fingers of the operator through the aperture thereof in order that a very positive satisfactory traction may be applied thereupon to slide the door.

Among the objects of the invention are: to provide, as a means for sliding the door, a nger-grip element which forms the outer part of the locking bolt and which will at all times serve as a guard or cover for the opening in the face plate of the lock; to provide for a sliding `door a locking bolt a portion of which is shaped as a ringer pull element, said iinger pull element being operable in such a manner as to reduce the size of the recess required in the door jamb to make room for it when the door is fully closed; to provide, in conjunction with other novel features of the invention, a combined locking bolt and traction means for a sliding door, wherein the protruding part of the bolt is constructed in such a manner that it will not form an objectionable projection and, further, to provide a combined locking bolt and nger pull which will always be adjustable in a more convenient manner,Y to amore or less protruding condition, or to a locked or unlocked position, as the user of the device may desire; to provide a means to insure that, when workmen install the lock upon the door frame, sulicient material will be removed from the door frame to afford `ample clearance for the operation of the locking portion of the bolt; and to otherwise render more stable and efficient the operation of a locking bolt adapted also to be used for manual traction means.

With the foregoing and other objects in View, the invention resides in the novel arrangement and combination of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

Referring to the accompanying drawing, which illustrates what is at present deemed to be a preferred embodiment of the invention- Fig. 1 is a fragmental perspective view showing the invention applied to a sliding door, an operators hand being shown grasping the combined locking Ybolt and door pull, preparatory to sliding the door to its closed position.

Fig. 2 is a vertical mid-section on line 2--2 of Fig. 4, of a fragment of the front edge portion of a sliding door showing our lock mounted therein. In this view the upper and lower portions of the escutcheon at the opposite side of the door are shown in elevation. The locking bolt is shown in full lines in its normal unlocked position and in dotted lines in its fully extended position.

Fig. 3 is a reproduction of the door and lock elements shown in full lines in Fig. 2, but includes in the view a section showing also lthe portion of the door jamb with which the locking bolt cooperates, said bolt being shown in the locked position.

Fig. 4 is a horizontal section taken on the plane indicated by the line 4 4 in Fig. .3.

Fig. 5 is a side elevation of the lock casing looking at the inner face thereof, the cover and contents being'removed.

Fig. 6 is a perspective view of the slidable lock bolt carrier, separately shown.

Referring in detail tothe drawing, the lock casing shown consists of a rectangular side plate It having a conventional marginal ange II which extends along three of its sides and which at the front end of the plate is united to the face plate I2, said plate I2 having through it a vertical elongated rectangular slot I3 which is as Wide as the interior of the lock casing and which ex tends the entire breadth of the casing except that a shoulder forming portion M of the face plate I2, Well shown in the upper left-hand portions of Figs. 2 and 3, encroaches upon the upper portion of the Width of the lock casing. A cover plate I6 completes the lock casing. n

Within the lock casing is mounted aslidable carrier Il which affords a means for imparting a vertical movement to the locking bolt I8. Said carrier is shown as a relatively thick, generally rectangular plate which has near each end in one face a groove I9. These grooves I9 are parallel to each other and are arranged to cooperate with the ribs 20 (see Figs. 4 and 5) ofthe lock casing. When the parts of the lock are assembled, said ribs 28 have a Working fit within the grooves I9, the grooves being suiciently longer than the ribs to allow the desired vertical movement of the carrier l'l. Operation of said carrier is effected by means of the turnable barrel 2| which carries the cam 22, said cam acting within the cam opening 25 with which the carrier is provided. Said opening 25 has a shoulder 2B positioned to arrest the turning movement of the barrel in one .direction.

The locking bolt I8 is of a broad elongated plate-like shape and, is oi a bifurcated character;

being provided along its upper side with a limb 23 and along its lower side with a limb 24, these limbs passing astride the carrier I1 with a working fit. As viewed in Figs. 2 and 3 the righthand end of the limb 24 is furnished with an inwardly directed flange or deiiected end portion 21 which forms an abutment for the adjacent end of a spring 28, the opposite end of said spring acting upon a downwardly directed lug 29 with which the carrier I1 is provided.

Between the basal portions of its limbs 23 and 24 the lock bolt is furnished with an inward extension 3G, the upper and lower edges of which are parallel to each other. The carrier I1, as shown in Fig. 4, is furnished with a narrowed portion 35 and the extension 30 does not extend across the entire breadth of said carrier but engages only this narrowed part thereof. Said extension fits with a working t between the adjacent thicker portions 33 and 34 of the carrier I1.

The cam 22, when it engages the face `3i of the locking bolt extension 3U, moves said bolt outwardly from the full line position of Fig. 2 a suflicient distance to bring its upper locking shoulder 41 out a suilicient distance to prepare the way for the nal turning movement of the cam 22 to act upon the upper side of the opening 25 and thus raise Ithe locking bolt to the position shown in Fig. 3 wherein said shoulder 41 is in a locking relation to the catch plate 53 secured to the door jamb. In order to provide in the outer upper corner portion of the locking bolt a suitable clearance or recess to permit of carrying out the operation which has just been described, this part of the locking bolt is recessed at 36 as shown.

In order to aid in keeping the 'cover plate I5 in place, a transverse rib 38 is provided at the mid-heighth of the case having a lug 38a which projects into an aperture provided for it in said cover, and the back end portion cf the carrier I1 is recessed at 39 to provide a clearance so that said rib will not interfere with the operation of the carrier.

The front end portion of the locking bolt is provided with a large finger-hold aperture 45 which has an inner extension 4I, said extension being necessary to accommodate a spacer 42 which projects inwardly from the attached [cover and is provided with va lug 43 which enters a recess provided therefor in the cover plate I6 (see Fig. 4). The lugs 38a and 43 may be peened over as shown in Fig. 4 to keep the attached cover in place. The front end portion of the locking bolt is provided at its lower side with a stop lug 46. The locking shoulder 41 of the bolt cooperates with the locking portion 49 above the slot 50a of the catch plate 53 which is secured to the jamb I of the door casing, said casing being suitably recessed at 52 to afford room for the ancuate outer finger-hold portion 53 of the locking bolt. Said catch plate 50 has projecting from its inner face the lugs 54 and 55 which are suitably spaced apart and are of sufficient length to virtually span the depth required for the adjacent corner portions of the recess 52 which the Workman is required to rabbet out from the face of the door jamb to provide room for the operation of the outer portion of the locking bolt 53. These lugs 54 and 55 prevent possibility of the workman overlooking the recessing of the door jamb because, unless the jamb has previously been recessed, said lugs prevent the catch plate being properly attached to the jamb. 58 designates attaching screws for the catch plate.

Viewing the device as shown in Fig. 4, the bar 6I which constitutes the knob of the lock may be assumed to be inside a toilet room. Said knob has an enlarged basal portion 62 with a flat face which abuts against the outer side of the dish shaped escutcheon plate 63. Said plate 63 as shown in Figs. 2 and 3 is seen to be elliptical with its long axis extending vertically. This shape of plate is prefer-able to afford a maximum of linger-hold service for traction purposes with a minimum as to size of the escutcheon plate. Also it makes it possible to locate the escutcheon plate as a whole [closer to the outer edge of the door so that it will be at times more readily accessible to the lingers o-f the operator.

The parts 6I and 62 form a portion of a permanently attached lock operating thumb turn furnished with a square tubular shank 64.

At the opposite side of the door is provided a twin escutcheon plate 66, both of the escutcheon plates being shown with attaching screws 51. Through the escutlcheon plate 66 extends another permanently attached coin turnable member, which has a square shank 68 that fits within the shank 64 of the thumb turn aforesaid, and which has an oval head 69 provided with a kerf 10 adapted to receive a coin for the purpose of turning the cam barrel when an emergency operation thereof is required. Said thumb turn and coin turnable members are both shown furnished with internal collars 12 and pins 13 as a means for permanently keeping them in place.

The door provided by this invention is obviously adapted to be used in various other situations than as a toilet door. Where no special privacy is required the oval head 69 provided with the kerf 'it need not be used, but both of said thumb and coin turnable members may be provided with similar knobs or handles, for example, handles of the type 6I shown in Fig. 4.

Describing more specifically the operation of the device, when the door is open the nger-hold member I8 will occupy the retracted position shown in full lines in Fig. 2, at which time the spring 28 will maintain the lug 45 at the lower side of the front end of the combined locking bolt and finger-hold in contact with the part of the face plate I4 adjacent to the lower edge of the opening through said face plate. Upon entering the toilet room which it is assumed is at that side of the door which is provided with the attened thumb turn knob 6I, the occupant of the room will slide the door to its closed position, the rst part of the movement of the door being more conveniently performed by grasping the outer part 53 of the bolt between his fingers and after pulling said part out to the position indicated by Idotted lines in Fig. 2, inserting one or more ngers through the opening 4D as indicated in Fig. 1, thus obtaining firm, positive traction upon the inner side of the outer part 53 of the combined bolt and ngerhold member. Then the `door may readily be manually moved toward the closed position, and when such position is nearly reached the closing movement of the door may be completed by applying the fingers to the front portion of the wall of the escutcheon plate at that side of the door. After the door has been fully closed the occupant will turn the thumb turn knob 6I in the direction indicated by the arrow in Fig. 2 to lock the door. During the initial part of its rotation the pam 22 will remain operatively inert, but when the cam has advanced somewhat from the position shown in Fig. 2 it will act upon the face 3| of the locking bolt and will move said bolt out from the position shown in full lines in Fig. 2 to the full line position of Fig. 3. Then a further rotation of the thumb turn knob in the saine direction will cause the cam 22 to engage the upper side of the opening 25 in the carrier thus lifting the carrier to the position shown in Fig. 3, and will cause the upper front locking lug 41 of the bolt to closely approach the upper lug 55 of the catch plate and thus assume alocking relation to the adjacent part 49 of the catch plate.

What is claimed is:

1. A sliding door lock comp-rising a casing, a locking ringer-grip bolt mounted within said casing, operating means mounted within said casing to move said locking bolt horizontally and vertically to and from a locking position, said locking bolt having an outer end portion which at all times projects beyond the front edge oi the door to a manually grippable position and being furnished with an aperture adjacent to said outer end portion of a suilicient size to admit one or more fingers of the operator, and a spring within said casing normally opposing further outward movement of the locking bolt from its retracted position, said spring yielding to manually traction upon said locking bolt to allow iurther extension of the latter to permit one or more fingers of the operator to be inserted through said aperture to apply traction to the door.

2. The subject matter of claim 1 and, an outer portion of said aperture through said locking bolt being at all times positioned beyond the front edge of the door.

3. In combination, a lock casing, a turnable barrel mounted thereupon, a cam element carried by said barrel, a carrier plate having through it an opening against the sides of which said cam element operates, and a locking bolt having at its outer end a verticalljT directed locking shoulder, said casing having a pair of vertical horizontally spaced apart parallel internal ribs and said carrier having a pair of grooves oi greater length than said ribs to receive the latter with a working t, said locking bolt having side portions between which said lcarrier is fitted with a working fit and said cam element being positioned to exert an ejecting action upon said bolt and then to raise the carrier and thereby move said bolt up to its locking position.

4. The subject matter of claim 3 and, a spring acting between said carrier and bolt in opposition to said ejecting action of the cam upon said bolt.

5. In combination, a lock casing, a turnable barrel mounted thereupon, a cam element carried by said barrel, la carrier plate having through it an opening within which said cam element is located, a locking bolt having an upwardly projecting locking lug at its outer end and having upper and lower side portions between which said carrier plate is located with the upper and lower edge portions of the latter having a slidable working t between said side portions of said locking bolt, said casing having a pair of vertical horizontally spaced apart parallel internal ribs and said carrier having a Ipair of grooves of greater length than said ribs to receive the latter with a working nt, said cam element being positioned, when said barrel is rotated in the locking direction, to exert an ejecting -action upon said bolt and then to raise the carrier and thereby move said bolt up to bring its aforesaid locking lug into locking position, and a spring acting between said carrier and bolt in opposition to the ejecting action of the cam upon said bolt, said locking bolt having an outer end portion which at all times projects beyond the lock casing sufficiently to afford a linger-hold upon said bolt, said bolt also having adjacent to its outer end a finger-hold aperture adapted, after the bolt has been manually extended slightly beyond its normal unlocked position, to admit one or more iingers of the operator to apply a more positive traction thereupon.

6. In combination, a lock casing having internal vertically extending guides, a plate-like elongated carrier mounted within said casing and retained by said guides in a position to reciprolcate vertically, a bolt mounted upon said carrier in a horizontally slidable relation thereto, said bolt having an outer end portion which at all times protrudes beyond the front end of the lock casing, there being a longitudinally extending space adjacent to said carrier to receive a spring, a spiral spring mounted within said space to act against a portion of the carrier at one end of said space, the opposite end of said spring lacting upon a portion of said. bolt, said carrier -plate having through it an opening, a turnable barrel extending through said opening, a cam within said opening carried by and extending radially from said barrel, said bolt having a cam engageable portion which projects into said opening, said cam when rotated in a direction to move the bolt to a locking position acting upon said bolt portion to move the -bolt outwardly and then nally acting upon said carrier to move the latter vertically together with the bolt, said bolt having a linger-hold opening through its outer portion Iand having also in its outer portion an upwardly projecting locking lug, said spring offerings, yielding opposition to the action of said cam upon the bolt, said spring also oiering a yielding opposition to the manual extension of said bolt by the insertion of the iingers of the operator through the opening in the bolt.

7. The subject matter of claim 6 and, the aforementioned guides for said carrier consisting of ribs projecting internally from the sides of said leasing, said carrier having grooves into which said ribs extend.

8. In a lock of the kind described, a casing having internally projecting, vertical, horizontally spaced apart parallel ribs, a carrier mounted within said casing having grooves into' which said ribs extend with a working fit, a locking bolt supported by said carrier, said bolt being horizontally slidable upon said carrier, said carrier having through it an opening into which a portion of said bolt projects, a turnable `barrel mounted upon said casing and extending through said opening in the carrier, said barrel having a radially projecting cam positioned Within said opening to engage, during a part of its rotation, the portion of said bolt which projects into said opening and thereby extend said bolt, said cam also during a portion of its movement engaging said carrier to move it vertically, said bolt having at its outer end a vertically projecting lug which is movable into a locking position by the operation of said barrel together with cam carried thereby, and operating means to turn said barrel.

HANCIL CORDREY. WALTER J. DUVALL.

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