US1661240A - Doorstop - Google Patents

Description

March 6, 1928..

F. C. TRIMBACH DOORS'IOP Filed Ju1y 28. 1924 v atented'Mar. 6,1928.

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,DOORSEYIIJOIE] Application filed July 28, 1924;; Serial no'. 72a,sso.:

My invention relates to door stops and more particularly to a door brace adapted to hold the door in its open or partially Open position as well as secure the door when closed." 7.

In the present construction-there is contemplated a vertically movable reciprocatory bolt member secured to the lower portion of a swinging door, such as a garage door, barn or factory door, whichbolt' is operated by an oscillatory control lever mounted at a convenient height UPOI1' tl1B door, 'andto which the bolt is connected byan interme diate link. 'The reciprocatorybolt member is lockedat either limit of its'stroke by the movement of-the-hand lever'beyond dead center position in one direction or the other. The bolt engages a keeper in the door sill when projected downward to secure the door in closed position. The bolt is preferably provided with a series of rack teeth engaging a pivotally mounted gear sector or toothed head which carries a brace rod. As the bolt is retracted by the movement ofthe hand lever to disengage it from the keeper the toothed head or gearsector is oscillated by its engagement with the rack teeth upon the bolt to swing the brace rod'from an upwardly extending retrieved position to a downwardly inclined position in which the brace .rod will drag upon the ground or upon the fioor as the door swings open preventing the return movement of the door by its thrust engagement with the ground or floor. As a modification of this construction, a me dially pivoted arm or lever,-toonee'nd of which the actuating link may be connected and upon the opposite end of which the brace arm is supported, may be employed in lieu of the gear sector or toothed head.

The object of the invention is-to simplify the structure as well as the means and mode of operation of door stops and swinging olosure fasteners, whereby-they willnotf only be cheapened in construction, but'will be' more efficient in use, positive in operation,

uniform in action, easily controlled, and un-' likely to get out of repair.

A further object of the invention is to pro vide a door stopwhich will securely hold a swinging door in different positions of adjustment to'prevent its closing movement. 7 A further object of the invention is to providemeans for engaging and disengag ng the segmental gears.

the door stop without the necessity ofstooping and by which the stop may be locked in its operated or retracted position. ,4 further but none the less important obect of the invention is to'rprovide suchdoor stop mechanism, the parts of which are so de mode of operation or their equivalents as hereinafter described and setforth in. the claims. 1

sists ofthe features of construction, the parts and combinationsthereof, "and the.

' In the accompanying drawings, wherein is 1 shown the preferred, but obviously not neces-,

sarily theonly form of embodiment of the invention, Fig. 1 is a perspective view of a portion of a swinging door, illustrating the door stop forming/the subject matter hereof applied thereto. Figs. 2 and 3 are a front and a side elevation respectively of the door stop and operative parts; Figs. 4 and 5' illustratetwo modifications of the brace arm mounting wherein an oscillatory lever is employ'edto carry the brace arm in lieu of Like parts are indicated by similar char acters of reference throughout the several views.

The present invention is primarily dei signed for use upon swinging garage doors,

barn doors, warehouse doors, farm gates and other swinging closures, which'it may be desirable to temporarily secure in their open or partially open position. However, the

invention is not limited to such use but may this case operates somewhat as a pawl per 'mitting free movement of the door, gate or other object in one direction, but automati cally preventing its return. In the drawthe lower inner face of which is Secured a guide. mounting or bracket 2, in wh ch is mounted for reciprocatory movement a vertically slidable bolt 3. When depressed the v I 1ngs,:1 is a portion of aswinging door, to

bolt 3 preferably, tho not necessarily, projects below the lower margin of the door for engagement with a keeper or socket n the door sill. Thus when depressed such bolt3 serves to lock the door in its closed position. The bolt 3 is raised and lowered by means of a hand lever 4 pivoted at 4 to an upper portion of the door 1. As a convenient method of mounting a plate 5 is provided,

tremity of the lever 4 to be moved slightly beyond dead center position, therebylocking the reciprocatory bolt in its elevated position.

Upon reverse movement of the lever 4, by which the bolt 3 is depressed, the pivotal connection of the link and lever moves in the opposite directions slightly beyond dead cen: ter position, thereby again locking the bolt 3 at the oppositelimit of its travel. The face of the bolt 3 within the guide mounting 3 is provided with a series of rack teeth. 11. Pivotally mounted in ears 12 projecting from the bracket or guide mounting 2 is a gear sector 13, the teeth of which intermesh with the rack teeth 11 of the reciprocatory bolt. Fixedly secured to the oscillatory gear sector 13 is a brace arm 14. As the bolt 3 is depressed by the manipulation of the hand lever 4, the gear sector 13 is oscillated by its engagement with the rack teeth 11,

thereby turning the brace arm 14 upwardly to approximately parallel relation with the door.

Upon reverse movement of the control lever 4 by which the lower extremity of the bolt 3 is disengaged from the keeper or socket in the door. sill, the gear sector 13 is oscillated in reverse direction carryin with it'thebrace arm 14, into a downwardly inclined position. In this position the brace arm 14 operates somewhat as a pawl drag ging freely over the ground, floor or other surface over which the door swings as the door is opened. However, upon closing movement of the door, the brace arm effects thrust engagement with the ground or floor, resisting return swinging movement of the door until the operating lever 4 is reversed. The brace arm 14and reciprocatorybolt 3 alternate operative positions. That is to say, when the brace arm 14 is in operative position to prevent the closure of the door,

the bolt 3 is retracted. To the contrary when the brace arm 14 is fully retrieved the The link 7 is bent laterally at a bolt is in its depressed position in which it engages the keeper or socket in the door sill to prevent the opening of the door.

In lieu of the geared operative connection for the brace arm 14, there is shown 1n F 1g;

4 a tilting lever 15, pivoted in a suitable supporting-bracket lfisimilar to the bracket 2.

The motion transmitting link 7 is connected to one end of the tilting lever 15, While the brace arm 15 is pivotally supported from the opposite end. The oscillation of the control lever 4 effects a corresponding oscillation of the tilting lever 15 to raise and lower the brace arm. 'VVhile the tilting lever 15 is shown medially pivoted in Fig. 4,'t here is shown in Fig. 5 a further modification wherein the tilting lever is pivoted at-its.extremity to thesupporting bracket 16,.and

the motion transmitting link 7 is connected 7 at the medial point. The general operation, however, s the same m both instances,

When the end of the swinging lever15 car-' rying the brace arm 14 is swungiupwardly by the adjustment of the hand lever 4 and the link 7, the lower end of the brace arm 14 will be elevated slightly above the lower margin 01' the door, thus freeing it from the grounder floor over which the door swings and permitting free movement or the door to and 1 11).. However, upon reversal of the control lever and the tilting lever 15, the

brace arm 14 is loweredto a position wherein it will drag upon the ground or floor as the door is open, assuming an inclined position, and upon reversemovement of the door efi'ectingthrust 'engagen'ient with tlie ground or floor to resist the closure of the door. To afford a limited knuckle movement ofthe lever 15 and brace arm 14 by which the relative movement in one direction will be limited, the upper end of the brace arm 14 after being passed thru a perforation inthe end cf the swinging lever 15 is extended a short distance, parallel wit-h the plane-of the level, as shown aft'17, and is then bent laterally at 18, across the lever 15, to alford a limiting step. By thisconstruction, the

brace arm swings free as the lever 1-5 is I of the character described, possessing the.

particular features of advantage beforeenu' merated as desirable, but which obviously, is susceptible otmodification in its form,

proportions, detail construction and arrange-1,

ment oii'parts, without departing from the principle involved or sacrificing any of its advantages.

While in order to comply with the statutes,

the invention has been described in language more or less specific as to structuralfeatures,

it is to be understood that the invention is not limited to the specific details shown, but that the means and construction herein disclosed comprises the preferred form of several modes of putting the invention intoeffect, and the invention is, therefore, claimed floor to prevent the return movement of the a door, a pivotal mounting for said bracerod,

permitting the movement of the rod to and from operative positions, and a door-stop for holding the door against free movement a reciprocato'ry link simultaneously controlling the adjustment of the rod and stop, and

a pivoted operating handle to which thelink is connected,the pivoted handle being adjustable beyond dead center positions at the opposite limits of its range of movement to lock said brace rod and stop in their operative and inoperative positions.

2. In a door stop, a reciprocatory bolt for locking the door in closed position, a second member for locking the door in open position, operative connections between the respective locking members, whereby the movement of either member to locking position retracts the other and Vice versa, and actuatin g means common to-both members.

3. In a door stop, a reciprocatory rack bar, a bolt head carried by the rack bar engageablezwith a corresponding keeper for locking the door in a predetermined position of adjustment, a swinging arm engage: able with the floor or ground for securing the door in other positions .of adjustment, a gear sector by which the swinging arm is carried, said sector meshing with the reciprocatory rack bar and oscillated by the reciprocation thereof, and means for actuating the rack bar. a

i. In a door stop, two alternately operable locking devices, one of which looks the door in closed position and the other of which locks the door in openposition, and actuating means common to'both locking members by the operation of which the locking members are alternately engaged and retracted.

5. In a door stop, two alternately operable locking devices, one of which looks the door in closed position and the other of which locks the door in open position, and a pivoted actuating lever operatively connected with said locking members, said actuating lever being movable beyond the dead center position at. opposite limits of its range of movement to secure said lock ing members in their operative and retract ed positions.

' '6. In a door stop of the character described, an elongated grooved mounting to be secured to the lower portion of a door, a reciprocatory slide mounted therein and provided with a series of rack teeth, ears on said grooved slide, a' gear segment pivotally mounted in said ears and intermeshing with the rackteeth of said slide, and a brace arm directly connected with the gear segment and operable therewith into and out of engagement with the surface over which the door swings, and means for looking the'slide at the opposite limits of its range of movement.

7. In a door stop of the. character described, areciprocatory rack bar, a mounting therefonagear segment carried by the mounting and inter-meshing with the rack bar, a stop, carried by the gearsegmfent in in the plane of the segment, said arm being turned to and from operative engagement with the surface over which swings by the reciprocation of the rack bar andj'means for locking-the rack bar in its operated position in, either direction.

8. In a door stop of the character described, a reciprocatory, rack bar, a mounting therefor, a gear-segment having intermeshing engagement with the rack bar, a stop brace actuated thereby to and from operative engagement with the surface over which the door swings, the reciprocation of therack bar, the surface over which the door swings having therein a socket in which the end of the rack bar engages when reciprocated in one direction to hold, the door against swinging movement.

9. In a door stop of the character de scribed, a reciprocatory lock bolt carried by the doorand engageable in a socket in'the isurface over which the door swings and a second stop member operatively connected therewith and automatically actuated into the door substantially radially disposed relation and engagement with such surface by the retrac-.

tion of the lock bolt an'd'vice versa.

10. In a door stop of the character described, 'a door stop engaging the surface over which the door swings permitting free movement of the door in one direction but automatically preventing the return moveconnections between said stops whereby the of one will operatively ,set the.

retraction other. 7 7 v In testimony whereof, I have hereunto set my hand this 25th day of July A. D. v 1924:.

' FRANK o. TRIMBACH,

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