US1827143A - Doorcheck - Google Patents

Description

J. B. DOYLE oct. 13, 1931.

DOORCHECK Filed Nov. 14, 1928 2 Sheets-Sheet' l oct'. 13,1931. J. B. DOYLE l1,827,143

DOORCHEGK Filed Nov. 14, 1928 2 Sheets-Sheet 2 Patented Oct. 13, 1931 ferire fsrieirns -fPATEN'r foreros Jose-'ria enr-ineen norm7 or MOUNT VERNON, ,NEW Yoan, AssrGNoiero Janus n.4L

HOWARD a' *.CCMPANY, or miniemen CONNECTICUT, pe. CoBnonzr'rioN or 'CCN- noononncx `Agplication ed'November11'4, 19128. lSerial No. 319,425.

The general object of'theinvention is to" provide a cli'ecirfor preventing adoor f'from slamming closed, ywithout being stopped a few inches `away from the door post.

A :furtherfobj ect of .the `invention 'is topro-v y vide such device, `which, upon ythe l,door L L v y., v h i wenig arrested, will automatically allow t e door :to continue itsk closing movement 'with` out interruption.

iy "so controllingthe 4closing movernent of door, many accidents, suchv asthe lpinch- ,li of 'a lpassengers iliand between 'the fdoor it: and post, by reason `ofthe door raccidentally Islaniminp; shut, or 'being `suddenly fel'osed `by the 'trainattendant, may be prevented. v

A further robj'ectfof'the Vinvention is ltoprovide a door Checlrwhicli, when theido'or is closed at inot 'to 4exceed :a certain speed, lwill not Gemeint-o `operation to eheckftlie'closing -of the door, butwliich will lso check it, when lthe Alimit of spee'dfof tliefolosing operation is exceedeo ,.-a'nd one 'which will furtherr operate automatically, both fto fcheck the "door, and to rallow of 4the subsequent'continuedjiclosing `anduts :compera-tingaparts.

movement, 'the faction 'of gravity being' taken advantage l of 'i to r'epla'oe the jpa'rts in position to allow the closing of the doorafter the l king hastaken place.

rnotlierpbject is to providea-doorfcheck Y of fthe typeset forth above :which will not e lfe'ct yor impede 'tbeopening' :movement of the f door, 'irrespective of vthe speed of such l movement. f

` i nientof parts hereinafter'more which 'will'fmore particularly yappear 'as 'the L; applied l'to Itlie sliding door thereof.

Figure @represents an' enlargedielevational v view, partly broken awa-y and Ypartly `tin ksec- Y :tifon from fthe :inside ofk the door .looking out therefrom. l 1 l Eigure Sfrepresentsia topplanview"ofth'e disclosureiof FiguresQ.

ureQ showing'fthe positionaof the partsfin the arrested positioirof the door,iand before dthe "arinhas .dropped/:by gravity to allowtlre I.,

continued 'closing :of the door.

`Figurea represents atop plan view, parts being in sectioinfofftlie invention applied'to a :swinging'doorfand its jambs. ,y y

`Figure represents'anielevational view of' the arran Oement of 'Figure 5.

`Figure yrepresentsan elevational view of vanadaptation"of:the invention in the form of a'combined stop andlatcli.

vReferring `rnore particularly ,to the Vdraw-- ings,iazrailwayicoaehxisindicated atri, aslidring fend door :therefor `is .indicated at B, Tthe check Vis indcatedigenerally at @,aandthe door post 'is indicated at D. 1

Moderncars-'are built of steell andithe I invention will be particularly described-'as ap- .pliedito the cariconstruction nowin general practice, :butiit fis .to `be understood thatthe Viinvention is'not'to be limited tofs'liding-doors 4'or -to `the particular ltype-of'fdoor disclosed, e L

dfi

gure .flfrepresents a iviewfsimilar to Fig- Y -Joritoitheparticular construction ofsuch door vAnarm whili may Vbe-counter-weighted 'at'5 is fpivotedat' between 'the'sidesfof the ldoor,'extending'outtlirough a slotted opening f7',the bottom iwallofzsuch slot serving as a :restfor supporting thef arm normallyiin horizontal position, 'andsnch arm-is loc'atedprefsei-ably nearftlietop of ithe door so asLnot to impedeifreepassagethroughzthe door-way, or Aftoloril'f'er obstruction thereto. The outerend offthefarm istpreferably lrounded as at 8,rand yat 'its-lower edge inclines gradually .downwardly froin such rounded -`portion to provide 'a cam surface '9,1wh'ichuat Al0 .bends -sl1'arply downwardly and then around` to form f a nodule 11, the surface ofithe cam 9 :and nodule Ill merging at "thelcur-ved Vsurface 1Q. @n` its upper edge, the `arml '5 is formed Iwith a shoulder or stop 13, positioned about even with the portion of the nodule nearest the pivot point 6. rThe door post l), including the strip 14- ilanged to receive the door7 usually found thereon, is provided with an opening l5 opposite the arm 5, such opening being of a vertical height somewhat greater than the vertical width of the arm o, including the nodule and shoulder i3., to allow these parts to pass through the opening as the door moves into closed position. T he width of 'the opening 15 is slightly greater than the horizontal width through the arm, to allow free passage of the arm therethrough.

ln operation, normally the door being open, the arm will be in horizontal position shown in `Figures l and lf the door should inadvertently slam shut, or should be closed too great a speed by the trainman, the cam surface 9, as the arm approaches and enters the opening l5 on the door stop, will, by engaging the lower edge of the opening in the door post start an upward movement of the arm, and as the curved portions 2 and l() of the cam surface and the nodule engage the edge of the post peiling, this upward movement will be greatly accelerated, with the result that the arm will be thrown upward to a position where the shoulder lil will engage with the material of the door post at and adjacent to the upper edge of the opening-f therein, as shown in Figure 4l, thus checking the closing movement of the door. The door having been checked in its movement, gravity acting upon the arm 5 will cause it to fall, whereupon the upper edge of the shoulder i3 will clear the upper edge of the opening l5 in the door post, the nodule. having passed the edge of the opening, droppin@ upon the lower wall thereof and thereupon the door is free to continue its closing movement without interruption.

rlhe door may, of course, be gradually closed as the arm approaches the post, at a speed which will allow the arm to ride on its cam surfaces without throwing the arm upwardly, the door thus being capable of beH ing closed without an interrupted movement. lf, however, this speed of closing is exceeded either when the door accidentally tends to close, or is purposely closed, the che/cli will come into play and thus stop the closing movement when the door arrives at a position for a few inches away from its post.

rl`he door being closed, it will be observed that the check will. not impede the opening movement of the door in any way, this for the reason that the shoulder and the metal ac.- jacent thereto, being as near the pivot as "'l o nearest portion of the cam surface of the nodule, will enter the opening l5 upon opening movement ofthe door before toe nearest cam surface contacts with. the inside edge of such opening. Se that even if the opening movement is fast enough to throw the arm upwardly the only thing that could happen would be for the top surface 16 of the v.side opposite the head, receives a nut 6. rlhe latter may be retained againstloss by the cotter pin l?. ln assembling the device, the arm may be passed into the door through the opening 7, which may be large enough for this purpose, and the opening in the arm for the reception of the bolt aligned with the openings in the door faces through which the bolt projects. rllhe bolt may then be passed through the aligned openings in the door faces and arm, the nut assembled, and the Getter pin put in place. Of course other methods of mounting and assembly may be used, but this illustrates a simple and eective method of mounting the device.

ln the form of the application of the invention to a swinging door, as illustrated in Figures 5 and 6, the arm 5a may be pivoted as by a rivet or other suitable means 6a in a support 18 screwed or otherwise secured as at 19 to the face of a swinging door l5. Such support may have a shoulder 2O serving as a rest to hold the arm normally in substantially horizontal position. ln this form of the invention the arm may, as illustrated, be not equipped with a counter-weight, since such counter-weight would take up room, and in the type of installation illustrated, it is delsirable to have the device as inconspicuous as may be and to occupy a minimum amount of room. To (3o-operate with the arm. in the manner as heretofore already set forth with reference to the sliding door, the door jamb D is provided with a bracket 2l secured thereto in desirable manner and provided with spaced arms 22 and 23 positioned apart a distance slightly greater than the vertical width of the arm through the nodule ll and shoulder 13', to allow these parts to pass between the arms the door moves into closed position. lf desired the cam surface 9 of the arm may be straight rathe than compound as in the form shown for instance, in Figure Q, and may be su'iiiciently steep to insure of the arm being thrown upwardly when such cam surface strikes the edge of the lower arm Q3 of the bracket when contacting therewith at aV speed exceeding a given limit. `When so thrown upwardly, the shoulder 1?/ `will engage the arm 22 and thus arrest the closing movement of the door, the arm there upon being pulled down by gravity to allow the door to continue its closing movement, as heretofore set forth in connection with the first form of the invention described.

ln the adaptation of 'the invention in the form of the combined stop and latch, as ilassegna lustratedy in Figure 7, one end 5b of the arm f' 5 may project through an opening in the door B2 onto the outside ofthe door to be engaged by one opening the door, in order to may be extended as ai 5d to afford a thumb'.y

or finger hold on the inside of the door at 11 p anarinpivoted to door, such arinibesuch opposite end. The extended end 5b will act asa counter-weight. In this form of the invention, a suitable bracket 18 pivotally supports the arm in position on the door, and the bracket 2l which may be similar to the bracket 21 is carried on the door jamb D2. In this type of the invention, however, the nodule 11a instead of being` rounded on its side toward the pivot, as in the other forms of the invention illustrated, is squared on this side to form a shoulder 24, and such shoulder engaging against the inner face of the lower arm 28a of the bracket, will pr-event the door from being opened until the arm is manually raised. Thus in this form of the in- '-fention, latch is combined with the stop feature of the invention, and this latch may be manually lifted from the inside or outside of the door, as the case may be, by a person desiring to pass therethrough. This form of the invention is adapted for use, for instance, on swinging screen doors. Such doors are usually equipped with spring means for closing them. The door stop feature of this ferm of the invention will effectually arrest the closing of the door at a point spaced from the jainb before it swings entirely closed, the door thereafter closingwhen the arm drops by gravity, asin the other forms of the invention. The distance'v at which ythe door may be stopped from the jamb in the forms of the invention shown in Figs. 5-7 may be adjusted by placing the bracket closer to or further from the edge of the jamb against which the door closes. By thus preventing the door from slamming to, under the action of its closing spring, not only is quieter operal tion and closing movement of the door se-Y cured, but the pinching of anything between the edge of the door and its j amb may be prevented, and thus many accidents, of which children and household pets, for instance, are often the victims, may be avoided.

The bracket of Figs. 5 7 with its spaced arms corresponds in function with edges and walls of the opening in the door post of the form of the invention illustrated for instance, in Figure 2, the space between the arms corresponding to the opening in the door post of that figure; and the door jamb of Figs. 5-7 corresponds in function with the door post of Fig. 2, so that my claims which include the door post, withV an opening therein, are intended to include the door j amb and bracket structure of n igs.r 5-7 as well.

The foregoing description has been given for purposes of illustrating the invention,A and no undue limitations should be deduced therefromp but.y the." appended claims: should be, construed .L as broadly as permissible, i in l1'view-lofvth'e'ffprior art.- Y Y p i Having 'thuszdescri'bed my invention what lift the arm, and the opposite end of the arm im as. newisi--f f .i f l The` eombniationlwith vdoor and-,its

post, the latter yhaving anv opening therein, l

ing `prrrvriidedwithl a eanifsufrface` on its lower edge adapted toengage the lower edge oi' the-.openingaifid tothrow thearni upwardly when therdoor is slammed to, the said arm being!provi.died'.` oniits. upper edge with .a shoulderadapted to engage the upper edge of the opening when the arm is thrown upwardly,- said shoulder being located slightly rearwardlyT of the said cam surface, the opening being ofv greater vertical dimension than the. combined vertical dimensions of the .arm v including the said cam surface and the shoulder, the opening being of greater horizontal dimension than that of the arm, to permit the arm to pass therethrough, the said arm being adapted, after having been thrown upwardly, to return by gravity to its normal position, thereby allowing the door to move into closed position.

2. The combination with a door and its post, the latter having anY opening therein, f

face of the arm adapted to engage the upperV edge of the opening to check the door when the arm has been thrown upwardly by the said nodule, the opening being of greater vertical and horizontal dimensions than the arm, including the said shoulder and nodule, to permit the arnito pass therethrough, the arm being adapted to return by gravity to its normal position after having stopped the closing movement of the door.

3. The combination with a door and its post, the latter having an opening therein, of an arm pivoted to the door, such arm being provided at its tip with a rounded sur# face,k the being further provided with a cainsurface on its lower edge adapted to engage the lower edge of the`V openingvto throw theV arm upwardly when the door is slammed to, a nodule on the lower surface n of thel arm, the said cam surface forming a curved joinder between the nodule and the said rounded tip of the arm, a shoulder on the upper surface of the arm adapted to engage the upper edge of the opening to check the door when'the arm has been thrown upwardly bythe said nodule, the said shoulder v being adapted to come into Contact with the edge of the opening only when a certain predetermined speed of closing is exceeded, the opening being ofgreater vertical and horizontal dimensions than the arm, including the said shoulder and nodule7 to permit the arm to pass therethrough, the arm being adapted to return by gravity to its normal position after having checked the closing movement of the door.

In testimony whereof I hereunto aiiix my signature.

JOSEPH BERNARD DOYLE.

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