US2316359A - Door fastener - Google Patents

Description

April 13, 1943. R. J. OLANDER noon FASTENER Filed Dec.

ammmmmm T A4 Inventor @WHEHHT' 8 i9 35mm I filanaer Patented Apr. 13, 1943 DOOR FASTENER Roland J. Oland'er, Chicago, 'Ill., assignor to W. H. Miner, I-nc., Chicago, 111., a corporation'ofDela ware Application December 26, 194.0, Serial No. 371,713

1 Claim. (01.292-21 8) This invention relates to improvements in door fasteners for hinged doors.

One object of the invention is to provide in a door fastener, comprising a rotary operating bar having keeper engaging crank members thereon cooperating with keepers operated by a lever on the bar, stop means for arresting rotation of the bar to hold the operating lever spaced from the side of the door when the door is in unlocked condition.

A further object of the invention is .to provide a mechanism as set forth in the preceding paragraph, wherein the operating bar is rotatably supported by bearing brackets, and the operating bar and said brackets are provided with cooperating stop shoulders forming the stop means.

A more specific object of the invention is to provide a stop means of the character described in the preceding paragraph comprising a stop shoulder on the bearing bracket and .a cooperating stop lug on the rotary operating bar, wherein the bearing bracket is formed in two parts comprising front and rear sections and one of said sections or parts has a portion thereof projecting beyond the other section to form the stop shoulder.

Other objects of the invention will more clearly appear from the description and claim hereinafter following.

In the drawing forming a part of this specification, Figure 1 is a broken, front elevational view of a wall provided with a door opening, and a pair of hinged doors for closing said opening,

illustrating my improvements in connection therewith. Figure 2 is a horizontal sectional view, on an enlarged scale, looking upwardly in Figure 1 and corresponding substantially to the line 2-2 of Figure 1, but showing the operating bar rotated through an angle of 180 from the position shown in Figure 1. Figure 3 is a vertical sectional view, corresponding substantially to the line 3--3 of Figure 2. Figure 4 is a view similar to Figure 3 of the mechanism at the lower end of the operating bar, said View corresponding substantially to the line 4-4 of Figure 5. Figure 5 is a transverse horizontal sectional view, corresponding substantially to the line 5-5 of Figure 4.

In said drawing, l8 designates the side wall member of a refrigerator car having a door opening l l therein, which is closed by a pair of hinged door members I2 and I3. Each door member is provided with the usual sets of hinges I l-44 along the vertical outer edges thereof, by which the door is swingly supported. The door l2,

which is that first closed, and the door I3 have meeting edges which are beveled and so inclined that the door l3 will maintain the door 12 in closed position and wedge the same shut when the door operating mechanism is actuated. The edges of the doors and the cooperating edges of the door-frame are provided with the usual insulating packing material, notshown.

My improved mechanism proper comprises broadly a rotary locking bar A; a .pair of keeper engaging end castings vBB provided with stop lugs; arr-operating handle lever .0; two part guide brackets DD for supporting the operating bar, one partof each bracket having a projecting portion forming a stop shoulder cooperating with the stop lug of the end castings, and a pair of keepers E-eE with which the end castings cooperate.

The operating bar A is of substantially rectangular cross section and'has the end castings riveted thereto.

The end castings BB, which are secured to the upper and .lower ends respectively of the bar are of similar design .but reversely arranged. Each end castingB has a forked portion l5 which embraces the flat bar A on opposite sides and has rivet members extending therethrough and through said bar, outwardly of the forked portion 15, eachmember B has a cylindrical bearing portion it which is rotatably supported in the corresponding guide or bearing bracket D. 'Between the portions 15 and 16, each member B is enlarged, as indicated at 1'7, said enlarged portion being preferably of cylindrical cross section. The enlarged portion ii is provided with a projecting lug or finger l8 rounded off at the outer side of the free end thereof, as indicated at l9, and having a substantially flat inner side face, as indicated by 20.

As shown in Figure l, the operating bar or shaft A is vertically disposed and guide or bearing brackets DD, which are preferably two in number, are employed to rotatably support the bar on the door l3. As shown in Figur 1, the brackets DD are arranged respectively adjacent the top and bottom edge portions of the door and are secured thereto by bolts 21-21 or any other suitable securing elements. Outwardly of the bearing section I6, each of the end castings B is provided with an oiiset crank member 22, well known in this art, which cooperates with the corresponding keeper E. The keeper E is also of well-known design and needs no further detailed description, it being merely pointed out that the same is provided with a cam slot within which the crank member engages to force the door open or closed.

The operating bar A is rotated by the usual operating handle lever C, which is pivoted thereto, to swing in a vertical plane and may be locked in position to hold the door closed by any wellknown latch means, indicated by 23.

The bearing or guide brackets D-D, which support the bar A, are of similar design, each bracket comprising two parts, 24 and 25. The part 24 is in the form of a, strap having a partly cylindrical central portion 26 provided with laterally extending ears 2'l21 on opposite sides thereof. The ears 2!--2'l are perforated, as indicated at 28-28, to receive the securing bolts 2|2|. The strap 24 of each bearing bracket D overlies the part 25 which is in the form of a flat plate, the underneath face of the strap 24 being recessed or countersunk, as indicated at 29, to accommodate the plate 25. The plate 25 is notched at opposite sides, as indicated at 30-30, to receive the shanks of the bolts 2|2l, as shown most clearly in Figures 3 and 4. The opposed inner surfaces of the bearing parts 24 and 25 are provided with curved bearing surfaces, defining a cylindrical bearing opening 3|, part of the walls of which are formed on the bearing strap 24 and part on the bearing plate 25. The bearing opening 3| is of the proper size to accommodate the cylindrical bearing portion [6 of the corresponding end member for rotation. As shown in Figures 1, 3, and 4, the bearing strap 24 and the plate 25 are broadly of triangular outline, the parts of the triangle being at the inner end of each bearing bracket, thus the strap 24 and the plate 25 have their broad ends at the inner ends of the bearing brackets. At said broad end, the plate 25 of each bracket is provided with an outwardly extending tongue 32 forming a continuation of the plate, the strap portion'24 being cut out to accommodate this tongue. The tongue portion 32 of the plate 25 is provided with a concave bearing surface 33 on its inner side adapted to fit the enlarged portion ll of the corresponding end member B. As shown in Figures 3, 4, and 5, the tongue 32 is relatively broad and has substantially flat side edges 34 and 35, the edge 34 forming an abutment or stop shoulder with which the lug l8 of the corresponding end member B is adapted to engage to limit rotation of the bar A. The lug I8 and the tongue 32 are so located as to stop rotation of the bar when the lever C is swung from the position shown in Figure 1 to a position adjacent and parallel to the door l3 but spaced from the face of the door, thereby providing clearance between the same and the door.

In Figure 1, the doors are shown in locked and closed position, the keeper engaging crank portions of the operating bar A being in engagement with the keepers and the operating handle C locked against rotation by the latch means 23, as is well-known in this art. To open the doors, the operating handle lever C is unlatched and swung from the position shown in Figure 1 to the right and inwardly toward the door l3, thereby rotating the bar A and through the camming action of the crank members forcing the door open. The swinging movement of the operating handle lever C is positively arrested before the same reaches a position where it would engage the door I3, by the stop lugs I8 of the end members B of the bar coming into engagement with the tongues 32 of the guide brackets D. The operating handle lever being thus held clear of the door, marring of the-finished surface of the latter is positively prevented when said handle lever is swung on its pivotal connection with the bar to drop to vertical position alongside the latter. This stop means also performs in the manner of a safety device, preventing the attendant from injuring his hand, which might otherwise occur by the same being caught between the handle of the lever and the door.

I have herein shown and described what I now consider the preferred manner of carrying out my invention, but the same is merely illustrative and I contemplate all changes and modifications that come within the scope of the claim appended hereto.

I claim:

In a fastener for hinged doors, comprising a rotary operating bar mounted on the door and having keeper engaging means cooperating with fixed keepers, the combination with an outwardly projecting stop lug on said bar; of a two-part bearing bracket in which the bar is rotatably mounted, said two-part bracket comprising a back plate and a strap overlying said plate, said strap and plate embracing the bar from opposite sides and having bearing portions surrounding said bar, said plate having an outstanding tongue in the path of rotation of said lug for arresting rotary movement of the bar.

ROLAND J. OLANDER.

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