US1929977A

US1929977A - Sliding door support

Info

Publication number: US1929977A
Application number: US314928A
Authority: US
Inventors: Ludwig G Jacobson
Original assignee: DAHLSTROM METALLIC DOOR COMPAN
Current assignee: DAHLSTROM METALLIC DOOR Co; DAHLSTROM METALLIC DOOR COMPAN
Priority date: 1928-10-25
Filing date: 1928-10-25
Publication date: 1933-10-10
Anticipated expiration: 1950-10-10

Description

Oct. 10, 1933. Q JACQBSQN 1,929,977

SLIDING DOOR SUPPORT Filed Oct. 253 1928 A gli Patented Oct. 10, 1933 .Y 'Y l" UNITED ASTATES' PATENT? oFF1cE- 1,929,977 YSLIDINGV DOOR SUPPORT Ludwig G. ,Jacobson, Jamestown, N. Y., assigner to Dahlstro'm Metallic Door Company, James- Atown, N. Y., a corporationY of New York .Application October 25,1928. fSerial No. 314,928 Y 7 claims. (o1. 16-97) This invention relates to an improvement in ingspecication taken in conjunction'withjthe sliding doors and more particularly to vdoors of accompanying drawing, and in which the overhead suspension type. Fig. l is a fragmentary front elevation ofv a pair Briey and in its preferred Yembodiment this of sliding doors and shows the pendent plates by invention constitutes an improved method of supwhich said doors are mounted upon their'respec- 60 porting slidingV doors upon an adjustable track tive tracks;

by means of pendent plates and trackrollers. Fig. 2 is an enlarged view of a portion of the Prior to this invention, it has'been customary structure shown in Fig` 1, parts of the pendent Vto suspend sliding doors upon tracks through the plate being broken away t0 bette illustrate thev use of pendent boltsprovidedwith track rollers. manner of supporting said pendent plate upon 65 No adequate' means has heretofore been provided the track thlOUgh the 11S@ Of tIaCk 101191'5;

by which to prevent the rollers from jamming or Fig. 3 is an enlarged vertical vsectional view becoming dislodged from the track when the taken on the line 3--3 of Fig. 2 and illustrates doors were operated, Furthermore, the tracks details of the pendent plate structure as well asv rigidly secured to the entrance frame thus maktlaCkS;

ing it practically impossible to level the track and Fg- 4 iS 2m enlarged VeltCal sectional View the doors Suspended thereupon Sliding doom taken on the line 4 4 of Fig. 2 and illustrates with the exception of occasional special requirethe manner 0f Supporting the tIaCkS UPOII the ments, are preferred to be suspended in an ab- 6116195111? frame?V s01ute1y horizontal position te preeiude'ined- Flg- 5 1S an enlaleediraementarv front elevavertent sliding thereof, to or from openedor closed non of one 0f the adlustable SuPpGltS for the position. During the erection of a door enclosure tracks? o1. frame errors Often 00cm. which, when thetrack Fig. 6 1s an lenlarged slide elevation of the lockis Ysecured thereto, tends tothrow said track nig or back klok roller andits attendant mecha' 80 Slightly out of desired alignment. Furthermore, nism through which the track roller is prevented sliding doors are generally subjected to'extremefrom beqommg dlsldged flSOm :the fall; and 1y rugh usage particularly those applied to eleva- Fig '171s an end View of the structure shown 1n .tors or elevator entrance enclosures. When these Flg 6' f doors are moved rapidly from one position to Referrmg t9 the dmWmgf this mvfmtlon-1s 85 another and strike the stop provided therefore, fshown ffm" use 1n Conllmt'lol Wlth a palrof slidit is essential that some'means prevent the door 3332i ggtsofsaeruggnhaglalg figli Jammmg or becommg dlslodged from' th smucht as tlebstiructurelofbthe door is identical, 90

.e escrip ion o u one wi e presen ed herewith. inghsepgigtsilrwongnsiglrs tlrliamgy .The pendent 131315515 along thbase flange 16" which to level or tilt the track as the occasion hseecldgolhogr gbmteal C? srevs 14; may demand but also provides means bywhich the doorois bent upvardyatcl) 1rot/ideea rtlicg o to retain the door in operative engagement with by which to Suspend the Sliding doors have been the method of securing the track rollers upon the 70 4 the track wall 17. A sufficient distance above the fiange '95 1 6, facilitates the insertion or removal of the stud 14. vThe wall 17 is flanged outwardly and thence upwardly to form the vertical wall 18.. Attention is called to the fact that the wall 17 is flush with one Vertical edge of the door and the wall 100 18 is flush with the other vertical edge. The Wally 18 of the pendent plate continues upwardly for One objectof this invention is to provide a. sliding door which may be removably secured -in operative engagement with the track upon which it is suspended. Y

Another object of this invention'is the provision of a sliding door mounted upon a track thIOllgh the use 0f a pendent p13/Ue and track some distance and is bent inwardly and downrollers Supported therebywerdiy tok provide e pocket 19 which may be de- A further Object 0f this IlVeIltOIl iS the DlO- nned by the Wall18,ilanges 20 and 21. The pend- 105 Vision of a track, upon which to suspend the slidont plate 15, as may bo readily understood, is, ing dOOIS, which may be adjusted in tO 01 OutOf when formed as above described, of a depth equal a horizontal plane as desired. to that of the door to which it is secured and ex- Other and further objects of this invention tends the full width of'said door, Through the will appear from a consideration of thefollowuse ofthis plate, the door is rigidly supported 110 plate 15 is shown supporting the doors by means` of track rollers 25. The rollers are each provided with a concave engaging surface 26v and spacing shoulder 27. An opening 28 is drilled through each roller and a ysuitable bushing 29. tted therein. The wall 18 andange 21 of thependent plate are drilled to provide passage therethrough for the bolt 30 upon which the roller 25 is mounted. The opening in the flange 21 is tapped to provide threaded engagement for thebolt 30. The flanges 27 formed integral with the roller 25 act as spacers to insure clearance between the wall 18 of the pendent plate and the track 32. The tracks 32 are each provided with yconvex upper edges which engage the concave surface 26 of each of the rollers 25. Attention is calledA to the fact that in order to mount the rollers 25 upon the track 32, the pendent plate and rollers must be raised to a position above the sosltrack and dropped into place thereon. The purpose of this will be subsequently brought out.

The structure of the lower horizontal portion of the pendent plate 15 is such as to provide a horizontal channel shaped pocket 34. Within the 35 pocket 34 adjacent the ends thereof are located roller locking members 35. These members each comprise an arm 37 having a flange 38 extending at right angles thereto and adjacent one end. The end remote from the flange 38 is provided with an opening 39 therethrough. Midway between the flange 38 and opening 39, a second opening 40 is provided being tapped for a purpose about to be described. A roller 42 having an opening therethrough is vertically mounted upon the member 37 by means of a screw 43 which engages the threaded opening 40. The member 35 is mounted upon the vertical wall 1710i the pendent plate 15 by means of a rivet 45. The outwardly extending horizontal flange which joins `.the vertical walls 17 and 18'of the pendent plate is cut away to provide slots 46 directly over each of the securing members 35. Directly beneath the ilange 38 of the member 35 and mounted in the flange 16 of the pendent plate is a set screw 47 having a lock nut 48 thereupon. The purpose lof the screw 47 is to move the securing member 35 upwardly in a pivotal manner about the rivet to a position such that the edge of the roller 42 engages the underface of the track 32. When the set screw has been moved to engage the roller with the track the lock nut 48 is turned to prevent any vertical movement of the roller. YIt is to be noted'that when the roller 25 is in engagement with the convex upper surface of the track and the roller 42 engages the underface of said track, it is impossible for the door to become inadvertently dislodged from said track due to any kick back which may occur when the door is moved to opened or closed position and strikes the stop determining either of these positions.

Reference is now had to Figs. 4 and 5 in which' Each of these brackets isprovided with a horizontal outwardly extending flange 52 having an opening 53 therethrough. A track suspension bolt 55 having a threaded upper end 56 is passed through the opening 53 of the flange 52 and held in place thereon by means of a nut 58 and lock nut 59. The suspension bolt 55 is bent outwardly and downwardly to provide a substantial. rail engaging portion 60. This portionV of the bolt 55 is flattened' to produce vertical faces 62 to which the tracks 32 are secured, one on each side thereof, by means of a rivet 61. Each track 32 is provided with openings therethrough whereby to receive the rivets 61, said openings being countersunk in order that, the rivet may not project beyond-the vertical edge of the track. Beneath the faces 62the bolt 55,.being reduced in thickness, is curved inwardly and terminates in a downwardly extendingange- 64 which is substantially in line withl the vertical flange of the bracket 50. The vertical slot 66 is cut centrally of the flange 64 and a cap screw 67. is passed therethrough to threadably engage the enclosure frame.

Attention is called to the-fact that the track suspension bolts 55-are so constructed that they insure uniform spacing of the tracksthroughout their length. Referring to Fig. 5 it may readily be seen7 that should this end of the track be slightly higher than desired, the error canv be remedied by loosening ther lock nut 59, the cap.

screw 67 and drawing'down onthe nut 58. When the track has beenraisedv by this means to the proper level, the lock nut 59 and cap screw 67 are turned down to securely lock the bolt in position.

bodyingthis invention the following steps are to.'

be observed: The brackets 50Y are suitably lo-Y cated upon the enclosure frame by means 'of studs `51. The suspension bolts 55 with the tracks 32 secured thereto may'now-be suspendedfrom the-flanges 52 of the brackets 50. The studs 67 and nuts 58'and 59 being turned clown to temporarilyl secure the bolts and tracks' in place; The pendent plates 15- having previously been fitted'with the track rollers 25 and roller securing members 35 are now mounted upon the tracks` 32. upper edge of the-track theset screws 47, provided in'conjunction with each of the members 35, are turnedl to theirl uppermost position thus bringing each roller'42 into engagement with the underface of the tracks. The pendent plates having been mounted upon the tracks and locked*y by the members 35 in operative position, it remains only necessary to securethe

doors

10 and 11 along their upper edges to the flanges 160i the pendent plates. 15 by means ofstuds-14. When` the studs 14 havebeen turneddown to theposition substantially as shown in Fig. 4, the doorVV turning down the set screws 47 and disengaging.

the rollers 42 fromV the tracksY 32, the doo1s,.including thependent plates., may be easily4 re,- moved from ,thetrack., If, however, itis desired to replace doors of one kind with thoseof another, the. screws 1,4 maybe removed thus the removal of the doorsand `replacement thereof ,is made possible without in anyway dismantling Athe pendent plates or tracks. doors and pendent platesinoperativeposition uponthe tracks, it. remains onlyi necessary to` When-thel rollers 25 rare inposition uponthe- After having assembledthe properly level the tracks and the structure is complete. The track leveling is acomplished by raising or lowering any one or all of the pendent bolts 55 as above described.

Attention is called to the fact that although, as above stated, it is generally preferred to provide a level track there are circumstances under which a slanted track would be preferred. The structure as described need not be altered in any way for this use, the track adjustment being sufficient to accomplish this result.

It is to be noted that through the use of a door structure as above described, it is possible to exchange one type of door for another Without dislodging the entire structure. A further advantage resides in the fact that the entire working structure of the doors is concealed and yet readily accessible should it be necessary to remove the pendent plate and doors from engagement with the tracks.

While only one modication of this invention has been shown and described, applicant does not intend to be limited thereto since it is obvious that other modifications and adaptations may be made Without departing from the spirit and scope of this invention as set forth in the following claims.

Having thus set forth my invention what I claim is new and for which I desire protection by Letters Patent is:

l. A pendent plate for supporting a sliding door, flanges defining longitudinally extending pockets in opposite faces of said pendent plate, a roller mounted in one of said pockets and engageable with a track, a securing member mounted in the other of said pockets, said securing member including a roller, and adjustable means for moving said roller through an opening in one of said flanges into engagement with said track.

2. A pendent plate substantially S shaped in cross section, having a bottom flange directly abutting the top of a door, track engaging rollers mounted in said pendent plate, securing means for attaching a door to said pendent plate, said supporting rollers being accessible from one face and said securing means being accessible from the other face of said pendent plate.

3. A pendent plate for supporting a sliding door and having flanges forming longitudinally eX- tending pockets opening into opposite faces of said pendent plate, rollers mounted in one of said pockets and supported on a track, an adjustable track roller securing member mounted in the other of said pockets, said track supported rollers being accessible from one face, and said securing member being accessible for adjustment from the other face of said pendent plate.

4. In a sliding door supporting structure, a door supporting pendent plate, a plurality of angularly directed flanges forming pockets in said plate, access to said pockets being gained from opposite faces of said plate, track rollers mounted in one of said pockets and engageable with a track located within the confines of said pocket, anti` friction track roller securing means, said means being located in the other of said pockets and movable to project through one of the flanges of said plate to engage the under faces of said track whereby to prevent dislodgement of said track rollers from said track.

5. In a sliding door supporting structure, a door supporting pendent plate, a plurality of angularly directed flanges in said plate, said flanges being substantially S-shaped in cross section and providing longitudinally extending pockets, access to said pockets being gained from opposite faces of said plate, track rollers mounted in one of said pockets and engageable With a track, anti-friction track roller securing means, said means being located in the other of said pockets and movable to project through an opening connecting said pockets to engage the lower portion of said track whereby to prevent dislodgement of said track rollers from said track.

6. In a sliding door supporting structure, a door supporting pendent plate, a plurality of angularly directed flanges forming pockets in said plate, access to said pockets being gained from opposite faces of said plate, track rollers mounted in one of said pockets and engageable with a track, track roller securing means, said means being located in the other of said pockets and movable to project through an opening in one of the flanges of said plate to engage the adjacent portion of said track whereby to prevent dislodgement of said track rollers from said track.

7. In a sliding door supporting structure, a door supporting pendent plate, a plurality of angularly directed flanges forming pockets in said plate, access to said pockets Vbeing gained from opposite faces of said plate, track rollers mounted in one of said pockets and engageable with a track, track roller securing means, said means being located in the other of said pockets and comprising an arm pivotally joined at one end to said plate, a roller mounted on and located between the ends of said arm, and adjustable means supporting the free ends of said arms, said adjustable means being adapted to move said roller through an opening in one of the flanges in said plate to engage the adjacent portion of said track whereby to prevent dislodgement of said track rollers from said track.

LUDWIG G. JACOBSON.