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Publication numberUS2872232 A
Publication typeGrant
Publication dateFeb 3, 1959
Filing dateMay 14, 1956
Priority dateMay 14, 1956
Publication numberUS 2872232 A, US 2872232A, US-A-2872232, US2872232 A, US2872232A
InventorsHollis E Lawson
Original AssigneeHollis E Lawson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Door check
US 2872232 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Feb. 3, 19,59 H, E LAWSQN 2,872,232

DOOR CHECK 1 Filed May 14. 195e arlllll l a 12 V 1 E ml-Za- Mm ET ATTOR/VY United States Patent() DOOR lCHECK Hollis E. Lawson, Atlanta, Ga.

Application May 14, 1956, Serial No. 584,485

8 Claims. (Cl. 292-80) This invention relates to door checks and is particularly concerned with self-releasing door checks by which a door may be releasably retained in open position.

A numerous variety of door or closure checks adapted to retain a hinged door or closure in open position have long been widely known and successfully used. For the most part, such checks have been of a hook type whereby the door is hooked in open position by manual manipulation of the hook structure. Obviously it is desirable that a check structure be provided which will automatically and in response to the opening movement of the door engage the check to retain the door in such open position without such manual manipulation. Various types of such automatically engaging checks have been designed; however, most of such checks, while automatically engageable, require manual manipulation for disengagement. Such checks as have heretofore been known which both automatically engage and disengage through movement of the door or closure itself have been complicated and/ or expensive as well as being subject to undue wear and fracture making them unable to maintain a long life of operable usefulness.

It is therefore among the primary objects of the present invention to provide a novel, simple and improved door check which will be automatically operable to be engaged and disengaged by movement of a hinged door or closure.

Another object of the present invention is to provide a door check which will be releasable only upon the positive and inward movement of the door towards the check as opposed from a check which is releasable upon outward pressure which may be inadvertently applied to the door. n

It is a further object of the present invention to provide a rugged and durable door check which may be readily formed of inexpensive material and which is constructed of few parts and hence one which is simple in operation as well as well designed to meet the demands of economic manufacture.

Numerous other objects, features and advantages of the present invention will be apparent from a consideration of the following specification taken in conjunction with the accompanying drawings, in which:

Fig. l is a perspective View of a door and wall assembly showing the application of one form of the present invention.

Fig. 2 is a perspective view of that form of the invention illustrated in Fig. l showing the two elements of the check ,structure in engaged relationship.

Fig. 3 is a view of the parts shown in Fig. 2 in midway released position.

Fig. 4 is a similar view of the parts in released position. l

Fig. 5 is a perspective detail view of the keeper member of the check shown in Figs. 1 to 4.

member'.

2,872,232 Patented Feb. 3, 1959 M0ice Fig. 7 is a similar view of a further modification thereof.

While certain aspects `of the present inventive concept may be carried out by variously constructed and designed elements that form of the invention here presented by way of illustration may be generally characterized as including a member preferably for attachment to the door which consists of a generally flat somewhat flexible metal strip formed with a flange at one end for attachment to the door and at the other end with a return bent or rounded catch extremity adapted for engagement with the companion or keeper member of the check assembly. The intermediate at metal body between the attaching flange and the curved catch extremity provides for a limited ilexing of the body as the door is moved to open position and the rounded end portion engages the opposite or wall mounted keeper member. The companion keeper member comprises a somewhat similar flat metal blade having a tlange at one end for attachment to the wall and at the opposite end the curved receiving portion adapted to receive the rounded catch end of the opposite member. The keeper is preferably rigid and provided on the intermediate shank of the blade with a slidable .pocket cover including a terminal flange formed as an operating detent. In the operation of the structure as the door is moved to fully opened position the catch member flexes upwardly over the front wall of the pocket of the keeper member and, in so moving, will engage the detent of the cover sliding the same rearwardly to open the pocket so as to permit reception of the rounded catch end of the catch thus retaining the door in open position. When it is desired to release the door, the further inward motion thereof will move the rounded end of the catch upward land over the detent, thereafter upon reverse or closing movement of the door the end will draw the cover to slide it forwardly over the pocket so as to preclude the return of the catch to the pocket and thus permit the door to be closed. In Fig. 6 of the drawing a modified form of the keeper member'is disclosed wherein the pocket is provided with an outwardly extending triangular guide to assist the location of the catch end of the door member in the pocket and in Fig. 7 the further modification is formed with the guide of Fig. 6 having an extension to form a second securing flange.

Referring now to the drawings there is depicted in Fig. l a conventional wall and door assembly, the door l@ being vertically hinged at 11 to be moved from the closed position indicated to an open position parallel with the wall 12. In this illustration the door mounted catch member is generally indicated by the numeral 13 while the wall mounted keeper member is designated by the numeral 14. As will be hereinafter discussed, when the door is opened to parallel position with the wall 12 the rounded catch end of the member 13 will engage within a keeper pocket of the wall mounted keeper member 14 to retain the door in fully open position. When it is desired to release the door for closure, further movement of the door toward the wall 12 will release the rounded end of the member 13 from the pocket of member 14 and thereafter a closing motion of the door will slide a pocket closure over the pocket to preclude the return of the rounded end of the member 13 to the pocket after such reverse movement of the door toward the wall, thus permitting free full closure motion.

`Referring now more particularly to Figs. 2, 3, 4 and 5 it will be seen that one element of the check combination which is here designated as the door mounted catch element comprises a body of fiat relatively flexible material, preferably metal, having at one end a vertically disposed securing flange 15 whereby the ilat blade body 16 of the door element may be secured in horizontal angle disposed flange 2t) adapted to be secured to the 10 wall'lZ by securing members 21 together with a horizontally disposed at and comparatively rigid intermediate body portion 22 terminating in a downwardly curved .end 23 forming a keeper pocket.24 for reception of the catch end 1S of the companion element. in addition there is slideably mounted on the liat intermediate body 22apocket` closure comprising a tlat top section 25 having an upwardly turned detent flange 26. This pocket closure member is slideably engaged over the body 22 by downwardlyand inwardly turned side flanges 27.

As the door is opened the member 13 as hereinbefore mentioned will move with the door toward the member 14. As the rounded catch. end 18 approaches the front of the curved keeper pocket forming end 23 the end i8 will be cammed upwardly tiexingthe body 16 to permit the end 1S to pass over` the front wall of the curved portion 23 and be received within the pocket 24 as shown in Fig. 2, thus retaining the door against inadvertent closing movement. such movement the catch end will strike the detent 26 sliding said pocket closure member in the direction of catch movement to open the keeper pocket to admit the catch. When it is desired to disengage the door a further motion of the door toward the wall as shown in Fig. 3 will again upwardly cam the member 1S and again llex the body 16 so that the catch end i8 will move upwardly and over the detent flange 26. Thereafter, upon a movement of the door toward closing position the latch end 18 will engage the ange 26 to slide the pocket closure forwardly over the keeper `pocket 24 precluding the re-entry of the catch end 18 within the pocket. Such motion is illustrated in Fig. 4 and it will be noted that a continued closing movement of the door is thus possible after the opposite inward movement of the door toward the wall.

By this arrangement it will be seen vthat the normal position of the pocket closure when the check is'not in operation is over the pocket, When the door is again opened the end I8 will again be cammed upwardly by the curved end 23 and it will engage thev front face of the detent to push the pocket closure rearwardly to the position shown in Fig. 2 whereupon the member 18 will 'fall into the pocket 24. the body 16 exing to its normal tlat position as shown in Fig. 2.

In that modification of theinvention presented in Fig. 6 the terminal edge of the pocket forming curve 23 is -provided with an outwardly extending V-shaped guide member 30 which not only acts to assist in guiding the latch end 1S upwardly and toward the pocket and pocket closure member as hereinbefore mentioned but further provides a supporting structure for enhancing the rigidity of this member.

In that modification shown in Fig. 7 the lower wall 31 of the guide 3i) is extended rearwardly parallel to the body of the keeper member and is formed at its inner end with a tlange 32 cooperating with the flange 20 to provide a double securement of the keeper to the wall and to further provide a reinforcing leg to strengthen the entire assembly and preclude a flexing of the parts thereof.

It will, of course, be understood that in the practice Aof the present `invention numerous changes, modifica- I claim:

1. A three piece door catch comprising the combination of a resilient catch member having a circularly bent catch end, a rigid keeper member having a keeper pocket for receiving said catch end anda cover mounted on said keeper and slidable to and from a position over said keeper pocket, said cover adapted to be selectively engageable by said catch end tomove the cover to uncover said pocket upon movement of the catch over the keeper in one direction and engageable by said catch end to move the cover to cover saidv pocket upon movement of the catch in the opposite direction.

2. In a three piece door catch, a keeper, said keeper having a securing ilange,-a flat rigid body extending outwardly from the flange, said body having a curved end defining a catch receiving keeper pocket, and a keeper pocket closure slidable on said body, said closure having na catch engageable operating detent.

3. In a threeY piecedoor catch, a keeper,V saidkeeper having a securing ange, a'at rigid body extending outwardly vfrom the flange, said body having a curved end dening a catch receiving keeper pocket, a keeper pocket closure slidable on said body, a catch engageable operating detent formed on said closure,said curved end terminating inV an inclined outwardly extending substantially V-shapedy catchguide.

4.- In a three piece door catch, a keeper, said keeper vhavinga securing flange, a Hat rigid body extending out- -wardly from the ange, said body having a curved end 0 defining a catch receiving keeper pocket, a keeper pocket closure formed on said closure slidable on said body, t a catch engageableoperating detent, said curved'end terminating in an inclined outwardly extending substantially V-shaped catch guide, and an inwardly extending leg having a wall engaging ange.

5. A door keeper assembly including a catch member having a door engagingange adapted to be secured to adoor, said catch member having a hat resilient body with a terminal rounded catch end, a-keeperadapted to ,be secured to a wall, said keeper having a flat rigid body .with a return bent curved end forming a catch receiving keeper pocket, a cover slidably mounted on said keeper, a catch engageable detent on said cover, said cover adapted for movement to and from a position over .said pocket byy selective engagement of said rounded catch end with -said catch engageable detent.

6.. A door keeper assembly including a catch member having a door engaging ange adapted to be secured to a door, said catch member having a at resilient body with a terminal rounded catch end, a keeper adapted to be secured toa wall, said keeper having a at rigid body with a returnrbent curved end forminga catch receiving keeper pocket, a cover slidably mounted on saidl keeper for movement to and from a position over said'pocket by selective engagement with said catch, a catch end engageable detent in the form of an upstandingend tlange on said cover, said cover normally lying over lsaid pocket, saiddetent being engageable by saidcatchv endl to slide the cover over the pocket as the catch moves in :one direction to engagethe keeper, said detenty adapted to `be Vover-ridden by said catch upon continuedmovement insaid one-direction, whereby movement of the catch in the opposite direction will cause the catch endto engage the detent so as to slide the cover over the pocket.

7. A three piece door catch comprising, a resilient catch member having a circularly bent catch end, a rigid keeper member having a keeper pocket for receivingV said catch end, a cover slidably mounted on said keeper, and a catch engageable detent on said cover, said cover adapted for movement to and from a position over said keeper pocket by selective engagement ofl said circularly bent catch end with said catch engageable detent.

8. A threepiece door catch comprising, a resilient catch member having a circularly bent catch end, arigid keeper member having a keeper pocket for receiving said catch end, and a slidable cover mounted on said keeper member and slidable to and from a position over said keeper pocket, said cover adapted to be selectively engageabie by said catch end to move the cover to uncover said keeper pocket upon movement of the catch over the keeper in one direction and engageable by the said catch end to move the cover to cover said keeper pocket upon movement of the catch in the opposite direction, said catch end being releasable from said keeper pocket only by movement of said catch end in said one direction to move said catch end beyond keeper pocket engaging position.

References Cited in the ie of this patent UNITED STATES PATENTS

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US281542 *May 17, 1883Jul 17, 1883 Door-check
US692119 *Aug 6, 1901Jan 28, 1902Louis C KettlerScreen-door fastener.
US1220448 *Mar 24, 1916Mar 27, 1917C C WillisAutomatic lock.
US2637576 *Jul 25, 1949May 5, 1953Phillips Tutch Latch CoAutomatic latch for two relatively movable members
AT90513B * Title not available
CH17003A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3054632 *Jul 20, 1959Sep 18, 1962Robert B WelchDoor holding device
US3432195 *May 27, 1966Mar 11, 1969Bausch & LombReleasable locking latch
US3669482 *May 15, 1969Jun 13, 1972Defazio Dominick JClosure fastener
US3806178 *Dec 20, 1972Apr 23, 1974Greytak DDoor latch construction
US4929004 *Mar 27, 1989May 29, 1990Chidester Patrick HVehicle door latch
US5575514 *Jan 5, 1995Nov 19, 1996Troy; Robert F.Door-holding door stop
US7017229Jan 14, 2004Mar 28, 2006Richard WalcomeLatching door stop for a marine vessel
US8393655 *Feb 26, 2010Mar 12, 2013Wilson Trailer CorporationSlam catch for trailer gates and the like
US20110210569 *Feb 26, 2010Sep 1, 2011Gerald BargeSlam catch for trailer gates and the like
Classifications
U.S. Classification292/80, 292/341.15, 292/DIG.190, 292/DIG.150, 292/76, 292/341.14
International ClassificationE05C17/52
Cooperative ClassificationY10S292/19, E05C17/52, Y10S292/15
European ClassificationE05C17/52