US1793125A - Door-operating mechanism - Google Patents

Description

Feb. 17, 1931. OCONNQR 1,793,125

' noon OPERATINGMEQHANISM Filed April 9, 1928 Int/a Jaflnifl 62727101 Patented Feb. 17, 1931 warren stares PATENT orrlce JOHN F. OCONNOR, F CIEICAGG, ILLENOIS, ASSIG NOR T0 W. H. MINER, 1110., OF CHICAGO, ILLINGIS, A. CQRPORATEON OF DELAW'ARE DOOB-QPEBATING MECHANISM Application filed April 9,

so that the door opening will be entirely clear of obstructions so that there will be no interterence when loading or unloading the cars.

Another object of the invention is to provide a door operating mechanism, especially adapted for refrigerator car doors which are hinged to the door frame, including a keeper mounted on the door and a co-operating op crating member mounted on the door frame,

wherein the operating member is displaceable to clear the door and door opening when the door is in open position.

Other and further objects of the invention 7 will moreclearly appear from the description and claims hereinafter following,

In the drawings, forming a part of this specification, Figure 1 is a side elevational view of a portion of the side wall of a refrigerator car showing the door of the same and illustrating my improvements in connection therewith. Figure 2 is a horizontal sectional View, corresponding substantially to the line 2-2 of Figure 1. And Figures 3 and i are vertical sectional views on the lines 33 and H, respectively, of Figure 1.

In said drawings, 10 designates the side wall of a refrigerator car, and 11 the door frame. A swinging or hinged door is designated by 12, the same being hinged to the innor side of the side wall of the car so that the same swings inwardly in the opening movement. As shown in Figure 2, the door is supported by the usual hinge members indicated by 13. The door is'provided with the usual handle members'la, by which it may be manually operated. The top, bottom,'and side edges of the door are provided with the usual 1 insulating material which is commonly employed in connection with refrigerator car doors. As shown, the co-operating edge portions at the free side of the door and the door frame are beveled, as indicated at 15, so

as to provide a tight joint by a wedging action when the door is closed. It will be noted that the beveled portions are so arranged that the door 12 must open inwardly.

My improved door operating mechanism comprises, broadly, a supporting bracket A,

a slide B, rotary operating means C, and a keeper D. I h

The support A is in the form of a platelike member having a longitudinally disposed central guideopening 16. The plate like member is secured to the side wall of the car on the outer side of the same, and the side wall of the ca is recessed, as indicated at 17, to provide a guideway beneath the supporting plate A. The plate may be secured to the side wall of the car by any suitable means. and, as herein shown, is fixed by-a plurality of screws.

The slide B comprises a bottom platelike section 18, which is mounted in the recess 17 and beneath the side portions of the platelike support A. The plate 18 is provided with an outstanding bearing sleeve-like section 19 which extends outwardly beyond the supporting plate A and is guided between the top and bottom sections of said plate, as most 8 clearly shown in Figures 1 and 4;. The projection portion 19 of the slide B provides a bearing member in which the rotary operating means is journaled. The rotary operating means C Comprises an operating lever 20. having a cylindrical extension 21 at one end thereof, which projects laterally and is journaled in the bearing 19.

In order to prevent removal of the cylindrical member from the journal bearing 19, the outer end of the member 21 may be upset, as indicated in Figure 1.

At the same end of the lever 20 which carries the bearing member 21, the lever is 96 provided with an oiiset section 22 which forms a crank arm, the offset section 22 being provided at its free end, with a laterally extended cylindrical portion 23 which is pt d o c pe ate with the ke per in the opening and closing movements of the door, as hereinafter more clearly pointed out.

The keeper D comprises a plate-like sec ion 2* which is secured to the outer side of he door, and an tapstanding hood-like seeion 25, which is provided with inner and outer walls 26 and 2'4", which adapted to co-operate with the member 23 of the operating mechanism. As shown, the wall 26 of the keeper is substantially flat and prwsents a vertical inner face. Tl e wall 237, which is the front wall of the keeper, has the lower end portion thereof vertically disposed, the upper section of the same being curred inwardly and connecting with the top wall of the keeper,

As shown in full lines Figure 3, the engag ing member 23 of the rotary door operating neans is adapted to engage with the keeper D when the door is substantially closed, and is disengaged therefrom when moved to the dotted line position in opening the door. In asmuch as the slide it on which the rotary operating means is mounted is slidable laterally, the operating means may be moved bodily to the left, as shown in Figure 1, to clear the door opening, and may be returned to the position shown in Figure 1 to be engaged with the keeper in the door closing operation.

Assuming that the door is closed, and it is desired to force the same open, the operating means being in its extreme riuht-hand posi tlon as shown in the drawing in Figures 1 and 2, with the engaging member 23 engaging the wall 27 of the keeper, as shown in Fig. 3.

The lever 20 is rotated by raising the same, thereby rotating the crank 22 in a clockwise direction, as shown in Figure 3, and bringing the engaging portion 23 thereof into abutwith the wall 26 of the keeper, whereupon further swinging movement of the lever 20 and rotation of the operating means will force the engaging element or member 3 inwardly against the wall 26, thereby forcing the door open and finally disengaging the member from the keeper, as shown in the dotted lines in Figure 3. When the door has thus been forced open, the operating mechanism C is moved to the left, so that the engagportion 23 will clear the door opening. Tl is will )ermit free passage through the oor opening without interference. The door may then be swung to its full open position.

In closing the door 12, the same is swung partly closed, so that the beveled edges of the door 12 and the frame will he in close proximity and the keeper D in such a position that it may be engaged by the operating means. Vith the parts in this position and the operating mechanism in its left-hand position where it clears the keeper, the lever 20 is raised so as to rotate the operating means to the dotted line position illustrated in Figure 3, whereupon the entire operating means C is slid to its extreme right-hand position wherein the engaging member 23 of the same will properly co-operate with the keeper D. .Vhen the parts have assumed this position, the lever 20 is swung downwardly, thereby rotating the operating means and swinging the engaging member 23 thereof from the dotted line position of Figure 3 to the full line position shown in said figure. In swinging the lever as thus pointed out, the operating member 23 will engage the outer wall 27 of the keeper, thereby pulling the door outwardly and forcing the same to tightly closed position.

In order to lock the parts in position when the door has been closed, I provide the usual car door locking means comprising a bracket 28 fixed to the door, the bracket having an upstanding car seal receiving tongue 29 which is adapted to enter a slot 30 in a lateral extension 31 on the operating lever. As shown in Figure 3. the tongue 29 projects entirely through the operating lever and is provided with a car seal receiving opening 30 at the outer end thereof. .Vhen the door has been closed and the lever is in the position shown in Figure 3 the car seal may be applied to the opening 30 in the usual manner.

Although the rotary operating means of the operating mechanism has been herein illustrated as mounted on the door frame and the keeper as mounted on the door, it will be evident that it is within the invention to reverse the parts, that is, that the keeper may be mounted on the door frame and the rotary operating means on the door, without any material alteration of the parts of the mechanism. It is further pointed out that it is extremely important in door operating devices, wherein the door opens inwardly, that a simple and efficient means he provided for forcing the door tightly closed or to force the same open, which will not interfere with the free opening and closing movements of the door.

From the preceding description, taken in connection with the drawings, it will be evident that the improved mechanism accomplishes the desired results pointed out, and that by providing the sliding arrangement of the rotary operating means the same may be displaced to an inoperative position, where it entirely clears the side wall of the door frame opening so as to not interfere with the opening and closing movements of the door.

l l hile I have herein shown and described what I consider the preferred manner of carrying out my invention, the same is merely illustrative and I contemplate all changes and modifications which come within the scope of the claims appended hereto.

I claim:

1. In a door operating and locking mechanism for refrigerator car doors, including a frame member having a door opening there in and a hinged door member for closing said opening, the combination with keeper means mounted on said door member adjacent one edge thereof, said keeper means having abutment wall portions; of co -operating lever actuated cam means on the frame member engagea lo with the abutment wall portions of the keeper means, saio lever actuated cam means when actuated while engaged with said keeper means forcing said door either open or closed, depending upon the direction of rotation of the lever, said cam being on gageable \vi thand disengageable from said keeper by swinging movement of the lever, one of said means being isplaeeable-c inwardly of the member on which it is mounted, to inoperative position, to clear the keeper and theadjacent wall of the door opening.

2. In a door operating and looking mechanism for refrigerator cars, including a frame member having a door opening therein and a:

door hinged to said frame member to swing inwardly of the'car when opened, the combination with a keeper means mounted on said door of a co-operating actuating means mounted on the frame member normally projected beyond said frame member and adapted to engage the keeper means to force the door either open or closed, said actuating means being engageable and completely disengageable from said keeper while projected, said operating means being displaceable inwardly of the frame member to clear the keeper and door opening.

3. In a door operating and locking mech-.

anism for refrigerator car doors, including a frame member having a door opening therein and a hinged door member for closing said opening, the combination with a keeper mounted on one of said members adjacent one edge thereof; of co-operating actuating means including a support slidably mounted on the other member, rotary operating means mounted on said support and having keeper engaging means thereon, adapted to co-operate with the keeper to force the door either open or closed, depending upon the direction 7 of rotation of said operating means.

t. In a door operating and locking mechanism for refrigerator car doors, including a frame member having a door opening therein and a hinged door member for closing said opening, the combination with a keeper ele ment having spaced walls thereon, said keeper element being fixed to one of said members; of operating lever having an offset extension adapted to co-operate with the keeper element, said lever being rotatably mounted on a support; and means for slidably carrying said support, said means being fixed to the door frame.

5. In a door operating mechanism for refrigerator car doors, including a door frame having a. door opening therein and a hinged door for closing said opening,said' door being hinged so as to swing inwardly of the car during the opening movement of the same, the combination with a keeper element secured to the door; of a supporting bracket fixed to the door frame; and operating means slidably mounted on the supporting member so as to be movable toward and away from said keeper, said operating means being displaceable to an inoperative position, where it clears the keeper so that the door may be swung freely inwardly of the car, said operating means having a rotary keeper engaging member thereon, adapted to engage the keeper to force the door either open or tightly closed, and operating lever means for rotating said member. 7

In witness that I claim the foregoing I have hereunto subscribed myname this 6th day of April, 1928.

JOHN F. OCONNOR.

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