US2452677A - Door fastener - Google Patents

Description

R. J- OLANDER DOOR FASTENER Nov. 2, 19.48.

5 Sheets-Sheet 1 Filed Nov. 29, 1.946

l'nv'ew ir: 18070023 .7 Olanfler Nov. 2, 1948. J, OLANDER 2,452,677

DOOR FASTENER Filed NOV. 29, 1946 3 Sheets-Sheet 2 Ji'oZcmcZ I OZamZr.

Nov. 2, 1948. I J, CLANDE'R' 2,452,677

I DOOR FASYTENER Filed Nov. 29, 1946 s sheets-sheet s fioland JOZawdeT. 5y MM Patented Nov. 2, 1948 DOOR FASTENER Roland-J. Oiander, Chicago, .Ill., assignor to. W; H.

'Miner, Inc., Chicago, Ill., acorporation of Delaware Application November 29, 1946, Serial No. 712,835

3 Claims.

This invention relatesto improvements in door fasteners, for hinged doors.

One object of the invention is to provide a door fastener of the rotary bar type having keeper engaging crank members cooperating with fixed keepers, especially adapted for swinging or hinged doors of the type employed on automobile trucks and railway refrigerator cars constructed and so designed as to eiiectively compensate for misalignment of the keeper engaging crank means and keepers on account of misapplication of the parts or due tothe doors becomng canted in service as, for example, by weaving action of theca r;

more specific object of the invention is to provide in a door fastener of the rotary bar type having crank members at opposite ends, the crank pins of which cooperate with keepers provided with cam slots, auxiliary means in the form of extensions on the crank pins for preventing disengagement of the keeper engaging crank members from the keepers, which would otherwise occur when the keeper engaging parts and keepers become disaligned, due to unavoidable canting of the door.

Otherobjects of the invention will more clearly appear from the description and claims hereinafter following;

In the accompanying drawings forminga part of this specification, Figure 1 is an elevational View of a portion of the rear wall of an automobile truck provided with a pair of hinged doors, illustrating my improvements in connection therewith, said view being broken to accommodate the same to the sheet of the drawing. Figure 2 is an enlarged, elevational View of the lower keeper engaging member of the fastener and cooperating keeper shown in Figure 1. Figure 3 is a horizontal sectional view, corresponding substantially to the line 33 of Figure 2 with the truck wall and the doors omitted. Figure 4 is an elevational view of Figure 3, looking in the direction of the arrows 44. Figure 5 is a view, similar to Figure 3, but showing the keeper engaging member rotated to a different position. Figure 6 is an elevational view of the lower end portion of the keeper engaging member shown in Figure 2. Figure 7 is a view. similar to Figure 2, showing the doors slightly canted, and the position assumed by the lower keeper engaging member under this condition; Figure 8 is a horizontal, sectional View, corresponding substantially to the-line 8-8 of Figure 7, the truck wall. and the. doors being; omitted In said drawings, it indicates a portion of the rear wall of an automobile truck provided with a door opening I I, closed by the usual doors l2 and I3. The doors i2 and i3 are supported along their vertical outer edges by the usual hinge members Ml4, which are of well-known design. As is understood by those skilled in this art, the hinged doors l2 and I3 engage each other at the meeting edges, the edge of the door I2, which is the door last closed, overlapping the adiacent edge of the door 13.

My improved door fastener comprises broadly top and bottom keepers A and B secured to the truck Wall iii; a vertically disposed, rotary oper ating bar C mounted on one of the pair of hinged doors; top and bottom keeper engaging crank members D and E on the bar; top and bottom bearing brackets F and G and an intermediate guide bracket I-I secured to the door and carrying the operating bar; and an operating handle lever J for rotating the bar.

The keepers A and B are of similar design, except ashereinaiter pointed out. Each keeper is in the form of a blocklike casting having securing ears i5-i5 at opposite ends thereof by which it is fixed to the wall Iii of the truck. The block of each keeper member is provided with a diagonally extending cam slot !6.

The upper and lower keepers A and B are reversely' arranged, that is, the keeper A is inverted with respect to the keeper B, the slot of the keeper A being open at the bottom of the keeper and. that of the keeper B being open at the top. The slot of each keeper is also open a-ttheouter end. The opposite vertical side walls of each slot, which are indicated by H and it, are parallel and are connected by a rounded inner end wall E9. The wall i8, wh ch forms the back wall of the slot i6, is longer than the wall ll, as clearly-shown in Figures 3, 5, and 8. The bottom section of the slot it of the keeper B is enlarged, asindicated at 2B, in Figures 2, 3, 4, 5,

"1 and 8, and the upper section of the slot 56 of the keeper A is similarly enlarged, said enlarged portion of the latter being also indicated by 20. The enlarged portion 2B of each slot is defined by parallel, frontand rear walls 2i and 22 and a-curved inner end wall 23, the front wall 2! being continuous and in the same plane with the wall 17, but extending inwardly beyond the inner end of the latter to the curved inner end wall 23. which is concentric with the wall 59, but laterally offset therefrom. The rear wall 22 is parallel to the wall 18, but oiiset outwardly therefrom, as clearly shown in Figures 3, .4, 5, and 8; The slot I6 of the keeper B is closed at the bottom by a wall 24 and the corresponding slot iii of the keeper A is closed at the top by a similar wall, which is also indicated by 24. As shown in Figure 1, the top and bottom keepers have their slots in vertical alignment to cooperate with the top and bottom crank members D and E of the bar C.

The rotary operating bar C is preferably of rectangular, transverse cross section and has end members 25-45 secured to the top and bottom ends thereof, each end member being forked to embrace the bar at opposite sides. Each of the end members has a keeper engaging crank member formed at the outer extremity thereof, the upper member 25 being provided with the crank member D and the lower member 25 with the crank member E. The bar is rotatably supported by the bearing brackets F and G and the guide bracket H which are secured to the door l2. The bar C, end members 25, and the brackets F, G and H are all well known in this art, and therefore need no further detailed description, however, it might be pointed out that the forked portions of the end members are riveted to the bar C and that the portions of the end members intermediate the forked portions and the crank members thereof are of cylindrical shape and journaled in the bearing openings of the brackets F and G.

Each crank member D and E comprises a horizontally disposed, radially extending crank arm 26 provided with a vertically disposed crank pin 2'! at its outer end of cylindrical cross section, which is flattened at one side. as indicated at 28. The crank pin of each member D and E is engageable within the slot I5 of the corresponding keeper and is of such a length as to extend into the enlarged portion 28 of said slot, as clearly shown in Figures 2, 4, and 7. At its outer end portion, the crank pin 21 is provided with a radially projecting finger or flange 29, which is of the contour shown in Figures3, 5, and 8. The finger or flange 29 has a flat front edge face, which is indicated by 36. The face 30 forms a continuation of the flat face 28 of the crank pin and is in alignment therewith. The rear edge of the finger or flange 29 presents a curved face 3! which merges at one end with the curved outer surface of the crank pin 21 and at the other end with a sharply rounded end face 32 at the rear extremity of the flange, connecting with the flat face 35.

The bar C is operated by the handle lever J, which is of the character usually employed in door operators of this type and which may be locked against displacement by a latch 33 ordinarily employed for this purpose to maintain the door in fastened and closed position.

As is well known by those skilled in this art, to open and close the door l2, the bar C is rotated by the handle lever J to cam the door outwardly or inwardly through the action of the crank pins 2"l2l of the members D and E in the slots l6l 6 of the keepers A and B.

Assuming that the doors are fastened in the closed position shown in Figures 1 to 4, inclusive, the flat face 28 of each crank pin is in flat faced engagement with the wall I! of the cam slot iii of the corresponding keeper, and the flat edge face 30 of the finger or flange of the crank pin' in contra-clockwise direction, as seen in Figure 3, thereby disengaging the crank pins from the walls lli'l of the keepers and bringing the same into engagement with the rear walls l 8-! 8 of the cam slots, as shown in Figure 5, to cam the door outwardly during further rotation of the bar. During this action of the crank member in forcing 1e door I2 open, the finger or flange 29 thereof swings within the enlarged portion 20 of the slot 55, said enlarged portion providing ample clearance for the same. To force the door [2 closed, the bar C and the crank members D and E are rotated in a reverse, or clockwise direction, as viewed in Figure 5, thereby entering the crank pin 2? of each crank member into the slot l6 of the corresponding keeper, and entering the radial finger or flange 29 of said pin into the enlarged portion 2c of said slot. As the bar is rotated in clockwise direction, the crank member is swung through the position shown in Figure 5 to the position shown in Figure 3, thereby camming the door tightly closed by engagement of the crank pin with the front wall I! of the slot I6. The crank pin thus normally serves to lock the door in fastened and closed position. However, should the parts of the mechanism be out of true alignment through the doors having become displaced, as illustrated in Figure '7, that is, slightly canted with respect to the body of the truck, the lip or flange 25 of the crank pin serves as a safety device to assure proper locking of the door, the extension formed by the lip or flange 29 of the crank pin still being engaged within the slot of the keeper although the crank pin proper has lost its contact with the outer wall I! of said slot. Under t'iese conditions, the crank members still hold the doors locked in closed position by engagement of the flat faces fill-30 of the flanges 29--29 of the crank pins with the flat faced continuations 2 !--25 of the walls ll'-I 'i. Not only is the proper lockin of the door l2 in closed and fastened condition thus assured when the doors are no longer in proper alignment, but accidental springing open of the locked doors, due to we ving action of the doors in service, is also positively prevented. As will be further evident, the flanges 29 of the keeper engaging means also compensate for misplacement of the parts of the door fastener in application to the truck body and door, that is, the flanges 29 will still operatively engage the keepers even if the latter or the operating bar has been erroneously applied in position to one side of that required to provide full operative engagement between the crank pins and keepers.

I claim:

1. In a door fastener for a hinged door of a container, the combination with a fixed keeper on said container, said keeper having a cam slot defined by spaced, vertically disposed, front and rear walls, said front wall facing the door; of a rotary operating bar mounted on the door; a crank member rotatable with said bar, said crank member including a crank pin engageable in said cam slot, said crank pin being engageable with said front wall to force the door closed; and a radially extending flange on said crank pin engageable with said front wall to hold the door closed when the parts of the mechanism become disaligned.

2. In a door fastener for a hinged door of a container, the combination with a fixed keeper on said container, said keeper being provided with a horizontally extending, diagonal cam slot having one of its walls facing said door; of a vertically disposed, rotary operating bar mounted on the door,

a crank arm extending from said bar; a crank pin at the outer end of said crank armj and a radial finger on the crank pin, said crank pin and radial finger of said crank arm being movable within the slot of the corresponding keeper and engageable with said wall of the slot to cam the door closed and fasten the same in closed position.

3. In a door fastener for a hinged door of a. container, the combination with a fixed keeper having a cam slot therein inclined away from the door, a portion of said slot being of enlarged width; of a rotary operating bar mounted on the door; a crank arm on said bar; a crank pin at the outer end of said arm, said crank pin being flattened on one side; a radially extending finger on said pin at the outer end thereof, said finger having a straight edge face aligned with and REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Name Date Haseltine Oct. 28, 1941 Number

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