Патент USA US2412910код для вставки
Dec. 17, .1946. A. v. ROWE 2,412,910 OVERHEAD DOOR CONSTRUCTION Filed Oct. ll, 1945 A . 3y Sheets-Sheet l Dec. 17, 1_946. " A. v. ROWE 2,412,910 OVERHEAD lDOOR CONSTRUCTION Filed Oct. ll, 1945 @.4 _, 5 Sheets-Sheet 2 i «L5 lN VEN TOR. 3%@ N@ Dec. 17, 1946. A, v, ROW.; ' 2,412,910 OVERHEAD DOOR CONSTRUCTION Filed Oct. 1l, 1945 50 ¿IE if@ Zea' 7E 65 . »'5 Sheets-Sheet 5 66 I,l l ’l INVENTOR. Patented Dec. l?, 1946 `f . 2,412,910 UNITED STATES PATENT OFFICE 2,412,910 OVERHEAD DOOR CONSTRUCTION Alvin V. Rowe, Galesburg, Ill., assignor to Rowe Manufacturing Company, Galesburg, Ill., a cor- Y poration of Illinois 1 Application October 11, 1945, Serial No. 621,781 6~Claims. (Cl. 160-201) This invention relates generally to an overhead door construction and more particularly to over head door constructions wherein a switch mecha nism is employed in association with the horizon tal portions of the guide track structure. 2 amount of headroom necessary for efficient oper ation; in fact the invention makes it possible to install an overhead door construction in instances where the available headroom is not more tha two inches. ' One of the problems which confronts the man The foregoing and other objects and advan ufacturer of overhead door structures is that of tages will be` more apparent from the following producing a door which may be shifted between detailed description‘when considered in connec closed vertical position and open overhead posi tion with the accompanying drawings wherein: ltion with a minimum amount` of available head 10 Fig, 1 is a fragmentary elevational View of the room. The present invention concerns itself with inner side of the door when the hingedly con the solution of the aforesaid problem and to this nected sectionsthereof occupy their vertical door end contemplates in combination with conven closing position; ' tional guide track structures a switch mechanism Fig. 2 is an enlarged fragmentary vertical sec of extremely simple and practical design adapted 15 tional view taken substantially along the line tov selectively control communication ‘of the hon' 2--2 of Fig. 1 to more clearly illustrate the rela zontal track portion with the usual curved por tive positions of the door follower members, or tion and a further portion extending forwardly rollers, and the shiftable elements of the switch from the horizontal portion. mechanism; ' More specifically the invention contemplates in Fig. 3 is an enlarged fragmentary vertical sec combination with hingedly connected door sec» tional view taken substantially along the line 3-3 tions shiftable between vertical and horizontal of Fig. l disclosing the opposite side of the switch positions of a switch mechanism having a novel mechanism and track portions associated there control arrangement to facilitate the shifting of a, with; movable switch member. `In this connection it 25 Figs. 4-6 inclusive, are enlarged views of the is contemplated to employ a trip, or latching de.. switch mechanism and associated track portions vice, which is operable as an incident to the shift as illustrated in Fig. 2, Fig. 4 disclosing the up ing ofthe door sections whereby to cause posi permost door section as it is passing from the tive and instantaneous shifting . of a movable curved track section to the horizontal section but switch member. 30 prior to the opening of the shiftable switch mem It. is a further object of the present invention ber, Fig. 5 being a View similar to Fig. 4 showing 4to provide a device as set forth above, wherein the the door section in a further advanced position movable parts of the switch mechanism and the with the latch opening mechanism carried by the latching means forming a part thereof are pivot upper door section about to move past the trigger ally mounted in such a manner as to insure free 35 plate, and Fig. 6 illustrating the latch actuating dom of` movement at all times, and to accomplish ' abutment as it moves downwardly into engage this, substantially frictionless pivotal bearings ment with the trigger plate so as to release the are contemplated. latch member and thereby permit the automatic It is also an object of the present invention to shifting of the switch member toits lower posi provide in combination with the shiftable 40 tion; . hingedly connected door sections and trackstruc Fig-7 is an horizontal sectional view taken sub turcs, as set forth above,a switch device or mech stantially along the line 'l--T of Fig. 4; ' anism which, as the door sections move from Fig. 8 is a vertical sectional view taken sub-` theirhorizontal to their vertical position, may be stantially along the Vline 8-8 of Fig. 4; . automatically unlatched by a trigger device so 45 Fig. 9 is a perspective view of the trigger plate as 'to instantaneously and positively establish detached from the track structure; and communication between the horizontal track por Fig. 10 is a perspective View of the shiftable tion and a forwardly extending track portionand switch member which serves in its downward po thereby permit the uppermost follower members, sition to guide the uppermost rollers to and from or rollers, on the door to move forward. As the 50 the horizontal track section. door sections shift upwardly from their vertical closed ‘position the uppermost guide rollers move rearwardly along the portion of the track extend ing forwardly from the horizontal portion and ` Referring now to the drawings `more in detail wherein like numerals> have been employed to designate similar parts` throughout the ,variousv figures, it will be seen that the invention con this arrangement reduces to a Vminimum » the 55 templates an overhead door construction which 2,412,910 3 4 includes a plurality of hingedly connected door sections I2, I4, I5 and i8y of Fig. 1. The door member, or arm, 45 is always assured. Any tend ency for rust or other foreign matter to collect within the pivotal area of the knife edge 42 is freevto fall downwardly away from said knife‘ section I2 will be hereinafter referred to as the uppermost door section and the door section IS as the lowermost door section. 'These sections are connected by suitable hinges 25, and in the vicinity of each of these hinges 20 is a track edge. A pin 59 traverses the U-shaped portion of the strip 43 so as to prevent upward disengage ment of the switch arm from the. pivotal knife edgetZ. It will be noted that theswitch arm 40 is urged toward its lower position by a coil spring 52 which extends between a hook 54 on follower member, or-roller, 22. >The guide rollers 22 will hereinafter be referred to as' intermedi ate guide rollers, or follower members, to distin the strip 4B and a tab 55 bent laterally of a guish from an upper roller 24 associated with mounting plate 58. This mounting plate 58 serves each upper corner of the uppermost door section , as the means for coupling the track portions 36, I2 and lower guide rollers 26 associated with the the upper zpart of the curved track portion 30 land the'forward part of the horizontal track por lower corners of the lowermost door sectionIS. ' cupy their vertical door closing position as shown tion 32 as a unit. ' in Figs. 1 and 2, the intermediate guide V.rollers ~ VAs the door sections continue to move ltoward their open overhead position the upper guide roll 22 and the lower guide rollers 25 are positioned within a vertical portionît of guide track struc ers M move rearwardly within the horizontal riedjby the upper door section I2 rest within the outer’extremity of a forwardly extending or aux iliary track portion 35 when the door sections oc cupy ltheir Vertical door-closing position. ‘ The forward or outer extremity of the track portion track portions 32 and eventually the intermedi ate V.rollers ll’2rassc'1ciated’with the hinge `in Ithe vicinity ofthe adjacent margins- of the door see tion `'1I 2V and the door section lIl! move into-en gagement with van L-s'haped portion 60 rofthe strip 48. .Thisïcauses the switch element to ‘be shifted upwardly to the position shown in Fig. 6. As the switch element 40 reaches this position a trip or latch mechanism,V about to be described, is conditionedso as to prevent subsequent down ward shifting- of the switch member until said 3S `is curvedv downwardly so that when the upper most >section I2 reaches its ñnal _closing position the movement of the door sections from open tures. Each vertical track portion 23 communi cates‘ with'a curved portion 30 which‘in turn is 20 adapted to communicate; or connect, with an horizontal track portion 32 through theagen'cy of a' switch mechanismV designated generally by the numeral 34. The upper` guide rollers 24 car latchmechanismis automatically shifted during toward closed position. Thelatch mechanism, just referred to, in it will be sealed against a header 3S of the -build ingstructure in which the-door ,construction is cludesA a trip 'orîlatching plate 62 which is shown indetail in,Fig.r9. The plate-52 is provided with an arcuate slot l(it which accommodates a pin installed. ¿A_n horizontalportion of lthe track 36 extends rearwardly from the al‘oove-r'nentionedl curved portion and is adapted to communicate, 66. -This pin- provides a pivotal support for the or connect, with the horizontal track portion 32 plate 52 as illustrated in Figs. 3 and 4. As the by means of the aforesaid switch mechanism 34. The structural and functional characteristics of 40 switch member ílill is shifted upwardly through the'agency o‘f the rollers 22, as just described, an the switch `»mechanism >Slt may best be under arm 58 ïformed `integral with the switch mem stood by describing the operation >of the door sec ber` ‘fillïis urged upwardly against the underside tions as they shift between their vertical door çlosing position and the upper open or overhead position. '.Assuming that 'the dool` Vsections oc cupy'their> normal door-closing position, vas shown in Figs. "l “and‘ 2, A‘and a force is applied soas to urge the door sections upwardly, the upper roll fi.. viewed inA Fig. 4, and a counterclockwise direc tion, ‘as viewed in Fig. 3, about the pin '65 now positioned Vin the upper extremity of the arcuate slot £4. The upward movement of the arm 60 ‘e'rs 24 willV move upwardly and rearwardly in the _curved section ofthe Vtrack portion 36 ‘effecting of arn- arm' `lil on the plate 62. This causes the plate S2 to `pivot in a clockwise direction, as su is _suiiicient to clear the arm ‘I0 and as this oc curs the arm ‘I0 falls downwardly to the posi the'îmmediate disengagement or unsealing of the upper margin of lthe doorv section I2 from Ythe headerßß. From the curved section of the track portion t6 the rollers Zit movehorizontally within tion 'illustrated in Fig. 6, thereby preventing 'downwardshifting of vthe switch member 40. Pressure ofthe arm ‘58 against thearm "I0 of the the horizontal section and ultimately reach :a ' platefca-uses _the outer extremity Aof the farm »10 shiftable member di) of the switch mechanism 34. to -bea‘r against anjabutment 'I2 (Fig. r7) 4formed integral with and extending laterally:v of the' track coupling plate 58. with the switch-arm 4u 1in A_-detailedrdisclosure of this shiftable switcher track‘member, ¿iii will be‘found in Fig. 10. When this position thel following yin'termediate rollers the switch member 40 occupies the position shown in Figs. 2 and 41„it serves to direct the upper 60 '2-2,ïfasf~well"`as the» lower rollers` §26, are directed guide rollers'24 :between the auxiliary track por from "the cur-ve’dv-f_trackl portionV v30 VVinto ’the‘ïhori tion âßand‘the'ghorizontal -mainftrack portion Zonta'l'track portion -32. ' ’ ‘ ' “ f ' f far "the, functioning of the switch mech, 32. vItwill "be vriotre'd'that the‘left extremity of the shiftable‘switch’rnember 40'is pivotallym'ount- ed on ‘a-knife edge t2. A flange44 extends over 'a‘nis'm' ‘to ‘ enablefproper vmovement ‘of 'the 'guide one side df3 the‘ïplate ‘45 upon which the knife described. 'f-I't' will “now be assumed‘thatthegdoor sections >_are tofbe'shiftedjfrom their, o_pen over; head- position toward Vtheir closedk vertical ‘îp'osií >edgefêZ’is formed, and a U-shaped portion of a strip '@liis positioned on the opposite side ofthe plate 45. ’(See Figi 4.) Sufñcient playl is >pro vided between thel fiange’il'd andl the U-shaped rollefrsinto-‘the ’horizontal trackp'ortionjs 'has'fbeen tion.l With the-shifta‘ble `switch member 4I) oc 70 cupying the `Yposition shown‘inFig. 6, _thelowßrf' portion ‘Q8 so as to providea free pivotal- connec most rollers 2:6. jand'thje intermediate urollers .Z2 ' tionand permit pivotal movement of the member I' vare directedffrom thefhorizontal .tlladklportion 4E! l'between'the- lower solid-'line position andthe toftëhe'curved'track portion 3U._..1mme,diate upper dotted-line positionas >illustrated in'Figf. 2j. ‘lr-Í'Oljlowinsthe _entrance ofthe uppermost 'intera «ByÍ' lthisïarrangement» free pivoting of ` the "switch 75 rnediate'ro'llers 22 into the curved track portion 2,412,910 5 ÉU, an' abutment 14 carried by the uppermost 6 an r extended period of time, and to avoid as f_ar> door section 'I2 is brought into engagement with aspossible unnecessary noise in operation. The a depending finger portion 'I6 of the plate 6'2, as switch mechanism described herein is of extreme--> clearl'y‘illustrated in Fig. 5. Engagement of the ly practicalconstruction in that the number_of abutment 12 with the finger 76 causes the plate Ul movingparts are few and -the mechanism may bei> 62 to be pivoted about the pin S6 and the plate assembled or disassembled with a minimum> is rotated in a clockwise direction as viewed in amount of effort and skill. The _bearings which Fig. 5. This causes the instantaneous shifting provide the pivotal points are so constructed as to of the arm, or ñnger, 'lil away from the under positively preclude accumulation of rust or other side of the arm 68 permitting the sudden down 10 foreign matter. In other words, once the mech ward shifting of the switch member 40 to the position illustrated in Fig. Ll.l Thus as the upper anism is installed it need not be lubricated from time to time in order to insure continuous satis rollers 24 approach the switch mechanism, the factory operation. This‘is extremely important switch member 40 is positioned so as to direct fora number of reasons. In the ñrst place the said rollers lfrom the horizontal track portion 15 switch `mechanism israther inaccessible for the 32 into the forwardly extending or auxiliary average garage owner, and secondly the average track portion 36. f car operator does not wish to be burdened with --Attention _is directed tothe movement of the continuous upkeep of the overhead door mecha plate 62 when the ñnger portion thereof is en gaged by the abutment 'I4 as the door sections 20 , It will also be apparent from the foregoing de shift upwardly from closed to open position. By scription that the invention contemplates an> the time the abutment 14 has moved upwardly overhead door construction requiring minimum into engagement with the finger '16, the shift headroom for installation. As previously stated, experience hasshownthat the door will operate able switch member 4i! will have been shifted up wardly and latched in position as previously de satisfactorily when the available headroom is not` in excess of two inches. Many of the present day scribed. The engagement of the abutment or projection 'M with the ñnger 16 causes the >plate commercial overhead door installations require considerable'more headroom in order to accom 66 to rotate in a counterclockwise direction, as modate the upper edge, or margin, of the upper viewed in Fig. 5, about the fulcrurn point estab lished by the engagement of the arm or finger 30 most door section as itis shifted between the curved track portion and the horizontal track l'ß with the fixed abutment 72, as shown in Fig. portion. The invention contemplates an over 7. The arcuate slot E4 in the plate permits this head door construction in which the switch limited, free movement of the plate S2. This free means includes a shiftable switch member and a tilting, or shifting, of the plate merely serves to shiftable latch member for securing the switch enable the abutment 14 to pass upwardly without _member in one position, saidlatch means beingv tripping the latch mechanism. In other words, msm. as the abutment 14 moves upwardly and engages the ñnger '16 of the plate 62, said ñnger‘serves , i ` controlled as an incident to the movement of the door sections. That is to say, means is provided which is operable upon movement of the door `for as a paw] which permits passage of the abut ment without disturbing the latched position of 40 shifting the latch member, or means, topermit the shifting of the switch member. . 1 the shiftable switch member dû. As the finger While for purposes of disclosure certain spe 16 automatically moves 'downwardly after the ciñc structural details have been disclosed here passage of the abutment 14 it occupies a posi in, it will be apparent that other modifications tion in the path of said abutment during the and changes may be made without departing subsequent'closing‘ of the door sections. Dur from the spirit and scope of the appended claims. ing this closing movement the abutment 14 en gages the finger 18 as previously described, there 1. An overhead door construction including a by causing instantaneous unlatching of the switch door comprising a plurality of hingedly connected member. The downward shifting of the plate door sections for traversing a door opening, track 62 is assured by employing a coiled spring 'I8 follower members disposed along opposite side which is interposed between the plate `62 and margins of the> said door sections and positioned the track coupling plate member 58. It will be intermediate and at the upperV and lower extrem understood, however, that both the downward shifting of the plate 62 and the downward shift- ,` ities of each side margin of the door, track struc tures adjacent opposite side margins of the door ing of the switch member 40 takes placeun ’ der the action of gravity, the coil springs 52 and for accommodating said follower members in ‘I8 being used in instances where it is deemed directing the door sections between vertical door closing position and open overhead position, each essential to assure instantaneous action. It will also be noted that the point of fulcrum between track structure including an horizontal portion, a the finger, or arm, 'l0 and the abutment 'I2 pro substantially vertical portion, and an intermedi vides a bearing which is free from the accumula ate curved portion for accommodating said inter tion of rust, foreign matter and the like. By mediate track followers, a further track portion having this point of contact any accumulation extending forwardly from each of said horizontal of rust or dirt tends to fall downwardly, away track portions for accommodating the follower from the point of fulcrum and hence free piv member adjacent the upper extremity of the side oting of the plate E2 about this point is assured margin, switch means for selectively connecting at all times. said horizontal track portion with said curved From the foregoing it will be apparent that the track portion and with the said further track por present invention contemplates an overhead door tion, said switch means including a shiftable construction of improved, practical design. An switch member, shiftable latch means for secur other difiicult problem which confronts manufac ing said switch member in one position, and turers of overhead doors is that of reducing to a means operable upon movement of the door for minimum the number of automatically shiftable shifting said latch means to release said switch parts in order to assure efficient operation over 75 member. ‘ ans-,eric 7 . ' a. ¿n overhead door ccnstruenon including a door' comprising a- plu-i‘a-lity' of hingedly co'nr-ii‘cted‘` door sections for 'travertir-'1gll a door open-ing, track follower ‘niembers"A dispo"" along opposite' side 8 tablishes communication between the horizontal’ track portion and said further track portion, re leasable abutment means» for preventing move- - margins 'of the said doors ations and positionedY ment of said switch member' toward said lasty mentioned position, and means operable as an: ediate the upper and lower extremities of incident to the movement of said door for Shiite eac ~ »side margin of the‘doór,~ a' track follower ad ing said abutment to release said switch member. íacëiitthe upper extremity of each side margin ofthe door, Vtrack~ structiires" adjacent opposite side Ariiargins of the'door for accommodating! said follower- -inembers in directing the door? Sections 4; An' overhead door- construction as' set forth in claim l whereinthe latch means includes a between vertical door-closing position and open position, eacl‘il track structure including ` portion, - " substantially vertical intermediate curved portion for 115 minodatin'g >said intermedi'a-te'track follow' e i a i’u‘rïtlierr track portion extending forwardly pivotally supported member, the pivotal support for which includes an upper bearing surface of restricted cross=section having an open area im; mediately therebeneath for passage of rust par ticles' and the like from the contacting surfaces of the‘bearing structure.- Y , f Y 5; An overhead door construction as set fort ‘ in claim 1 wherein the latch means includes a member having two pivotal points, one for piv frein eachv of said horizontal track portions for otally supporting the member as it is shifted in> accommodating the follower member adjacent the üpp'er extremity of the side margin, switch 20 one direction and the other pivotal support for said member when it is shifted in the opposite means for' selectively connecting" said horizontal direction. track portion with said curved track- portion and 6. An overhead door construction including a with the ‘said further track portion, said switch door comprising a plurality of hingedly connected rii'eans’v including ashi-ftable switch member, a door sections for traversing a door opening, track sl'ii'ft'able abutment for retaining the Switch mem berZ in one shifted position, and means operable in‘ response to the movement of the door for shift followerY members disposed along opposite side margins of the said door sections and positioned intermediate the upper and lower extremities of ing said abutment to release th'e switch member. each side margin of the door, a track follower ad 3; An overhead door construction including a door comprising a plurality of hingedly connected 30 jacent the upper extremity of each side margin of the door, track structures adjacent opposite door sections for traversing a door opening, track side margins of the door for accommodating said follower members disposed along opposite side follower members in directing the door sections margins of the said door sections and positioned between vertical door closing position and open intermediate the upper' and lower extremities of overhead position, each track structure including each side margin of the door, a track follower a horizontal portion, ,a substantially vertical por adjacent the upper extremity of each side mar tion, and an intermediate curved portion for ac gin of the door, track structures adjacent oppo commodating said intermediate track followers, a site side margins ofthe door for accommodating further track portion extending forwardly from saidfo‘llower members in directing tlfïie> door sec tionsv between vertical door c'losingp'osition and 40 each of said horizontal track portions for ac commodating the follower member adjacent the open overhead position, `each track structure in upper extremity of the side margin, switch means cluding' a horizontal portion, a substantially ver for' selectively connecting said horizontal track tical portion, and an intermediate curved portion portion' with said curved track portion and with ,for accommodating. said intermediate track f_ol the said further track portion, said switch means lowers, a further track portion extending for including. a shiftable switch member, shiftable wardl'y fromv> each of said' horizontal track'y por-V latch means for securing' said switch member in 'tions for accommodating the follower member ad- i one position, a pivotal support for said shiftable _jacent the upper extremity of the side margin, switch member including an upper bearing sur Switch means for selectively connecting said hori zontal track portion with said curved track por 50 face area of restricted size andan open area therebeneath for passage of rust particles and tion and with the said further track portion, said switch means including a shiftable'switch mem ber normally urged toward a position which es; the like from said bearing'surface. ~ " ' ALVINV V. ROWE.