US1943823A - Lift and throwout door mechanism - Google Patents

Description

Jan. 16, 1934. F. c. HEINEN LIFT A'ND THROWOUT DOOR MECHANISM Filed March 9, 1931 3 Sheets-Sheet 1 Jan. 16, 1934.

F. QHEINEN LIFT AND THROWOUT DOOR MECHANISM Filed March 9, 1931 3 Sheets-Sheet 2 @TTY F. c. HEINEN 1,943,823

LIFT AND THROWOUT DOOR MECHANISM Filed March 9; 1931 3 Sheets-Sheet 3 Jan. 16, 1934.

Vix

. ill! Patented Jan. 16, 1934 'ras PATENT OFFICE Frederick C. Heinen, Chicago, Ill., assigner to Camel Company, Chicago, Ill., a corporation oi Illinois Application March 9, 1931. Serial No. 521,214

15 Claims.

This invention relates to lift and throwout mechanism for car doors and concerns itself more particularly with means for elevating the door with respect to its supporting rollers so that it will be supported upon such rollers for sliding movement, and for moving the lower1 end of the door outwardly to readily clear all binding or parts of the car. The means or mechanism for performing these functions is set in motion by a 1o single operation so that the door is substantially simultaneously elevated and moved outwardly.

The invention comprises the novel structure and combination of part-s hereinafter described and more particularly pointed out and defined in the appended claims.

In the accompanying drawings which illustrate a preferred form of this invention and in which similar reference numerals refer to similar features in the different views:

Figure l is a fragmentary front elevational view of a double door involving this invention illustrating the doors in their lowered positions.

Figure 2 is a view `similar to Figure l illustrating the doors in their elevated positions supported upon the rollers.

Figure 3 is a View similar to Figure 1 illustrating a modified form of actuating mechanism.

Figure 4 is a view similar to Figure l illustrating a further modified form of actuating mechanism and a modified form of roller housing.

Figure 5 is an enlarged fragmentary vertical sectional view taken upon the line V-V of Figure 1.

Figure 6 is an enlarged fragmentary sectional view taken upon the line VI-VI of Figure 1.

Figure rI is an enlarged fragmentary sectional view taken upon the line VII- VII of Figure 2.

Figure 8 is an enlarged fragmentary sectional view taken upon the line VIII-V111 of Figure 4.-,

' showing the door in elevated position.

In referring now to Figures l, 2, and 5 to 7 it will be observed that the car door l has a casting or member 2 secured to the outer face thereof at each lower corner. In referring to Figure '7, it

.415 will be noted that each casting 2 has an outwardly directed stud 3 at its inner end which engages in a slot 4 in an ear 5 on a roller housing 6. The

roller housing 6 has spaced walls between which a roller 7 is journalled upon an axle 8. The outer end of each roller housing 6 is provided with a lug 9 which is pivoted to an oscillatable plate or lever 10.

The lever 10 is pivoted upon a boss 1l (Figure 7) which is integral with the casting 2, which it will be noted has a forwardly extruding flange 12 upon which the boss 11 is located. The lever 10 also has an aperture 13 for receiving an arin 14 on a transversely rockable member 15 that initially elevates the door and moves the same outwardly. These rockable throw-out members have curved fulcrums that rest upon the track 17 when the door is in its lowered position with the castings 2 engaging the track as shown in Figures 1 and 5. The members 15 are supported by the casting 2 by means of knuckles 18 which extend into bearing recesses in such castings. In referring to Figure 7, it will be noted that each knuckle 18 comprises laterally extending trunnions 19,

shown in dotted lines which are journalled in suitable bearing recesses extending from the main recess. W ith this construction, it will be obvious that when the arms 14 of the door throwout members 15 are forced downwardly, the knuckles 18 will move upwardly and outwardly in arcs with the fulcrums 16 as centers and will initially elevate and swing the lower `end of the door outwardly to clear the binding and parts of the car. When the door has been elevated so that it is supported upon the rollers as will hereinafter be more fully explained, the fulcrums 16 will be elevated above the track as indicated in Figure 2.

The upper end of each plate lever 10 is pivoted to the outer end of a rod 20. The inner ends of the rods 20 are pivoted to lateral lugs 21 on a hand lever 22 which is pivoted between such lugs to a plate 23 secured to the front face of the car door.

When the hand lever 22 is swung in one direction, to the right for example as shown in Figure 2, the rods `2() will be drawn toward each other and will rock the plate levers 10 upon their pivot points 11 towards each other. As the levers 10 are thuswise rocked the arms A14 .of the door throwout members 15 will be forced downwardly and the outer ends of the roller housings 6 will likewise be forced downwardly. As the outer ends of the housings 6 are vforced downwardly, the inner ends thereof which are attached to the door will be elevated, the roller housings sliding through the instrumentality of the slotted connections e as shown in Figure 2. The lowering of the arms 14 of the Ydoor throwout members 15 will initially .elevate the door, until it is raised to such a point by the movement of the throw-out members 15 that the fulcrums no longer contact the track 17 as shown in Figure 2 when the rollers I will serve as fulcrum members to complete the elevation of `the door. The arrangement is such that the initial upward movements of the door can be more easily effected through the throw-out members than if the rollers came into play at once. It will, of course, be understood that the door will be swung outwardly before the fulcrums 16 of the door throwout members are elevated above the track so that the door is substantially simultaneously ele-- vated and thrown outwardly in one movement.

Referring` now to Figure 3, it will be noted that the roller housings and castings 2 are similar to those in the rst form and are similarly connected. The door throwout members are also similar. In Figure 3, the mechanism for actuating the roller housings 6 and the door throwout members has only been modiiied. This modified form of actuating mechanism consists of a pair of levers 24 the lower ends of which serve as the aforementioned plate levers l0. The lower ends of said levers 24. are pivoted to the bosses 1l on the castings 2 and connected to the housings 6 and door throwout members l5 in the same manner as the plate levers l0. The upper ends of the levers 24 are slotted and an operating handle 25 has a shank or the like extending through the slots with the result that when the handle 25 is forced downwardly the levers 24 will be simultaneously rocked for actuating the roller housings 6 and the door throwout members l5 for elevating the door and throwing the same outwardly in the manner previously explained. When the door has been fully elevated, the throwout members will have been elevated above the track.

In Figure 4, a further modification has been illustrated. In this instance, there are a pair of levers 26, the upper ends of which are slotted and connected by a handle 2'? substantially as in the form shown in Figure 3. The lower ends of these levers 26 are fulcrumed or pivoted upon bosses 1l upon the casting 2 which are similar to the first form described. The levers 26 are also connected to the arms 14.- of throwout members 15 similar to those in the first form. In Figure 4, the roller housings 6 are eliminated and the rollers 7 are carried directly by the levers 26 which have suitable bifurcations 28, shown in dotted lines, in which the rollers are journalled.

As the levers 26 are forced downwardly, the door throwout members 15 will be actuated thereby for initially elevating the door and for throwing the door outwardly and when the rollers 7 are brought into engagement with the track so as to serve as fulcrums further actuation of the levers will completely elevate the door and also elevate the throwout members l5 above the track. From the foregoing, it willbe obvious that a novel and readily operable mechanism has been provided for elevating oar doors and moving the lower portion outwardly for clearing the binding or parts of the car.

I am aware that many changes may be made and numerous details of construction may be varied through a wide range without departing from the principles of this invention, and I, therefore, do not purpose limiting the patent granted hereon otherwise than necessitated by the prior art.

I claim as my invention:

l. In a house car having a track, a door adapted to be supported upon said track, roller housings pivoted at one end to said door, rollers journalled in said housings, oscillatable levers pivoted to said door and connected to the other ends of said roller housings, door throwout members pivoted to said door and engaging said track when said door is in a predetermined position, said members being connected to said levers and means for simultaneously actuating said levers for elevating said door and moving the same outwardly.

2. In a house car having a door supporting track, a door adapted to be supported upon said track, roller housings pvoted to said door, rollers journalled in said housings, levers pivoted to said housings for actuating the same for elevating said door, and door throwout members connected to said levers and operable between said door and track for moving the door outwardly when said door is elevated.

3. rihe combination with a track, of a door having frictional means for normally engaging said track, roller housings attached to said door, rollers journalled in said housing, operating levers on said door and pivotally connected to said housings, door throw-out members, normally resting upon track and connected to said levers, and means for simultaneously actuating said levers for the purpose set forth.

Zl. The combination with a track, of a door hav-- ing frictional means for normally engaging said track, means upon said door for initially elevating the same, and throwing the same outwardly, rollers carried by said door and resting upon said track and serving as fulcrum members for completing the elevation of the door for traveling movements upon said rollers upon further movement of said elevating means.

5. The combination with a track, of a door having frictional means normally engaging said track, levers pivoted to said door, throw-out members pivoted to said levers, roller housings plvoted to said levers and slidably connected to said door, and means for simultaneously actuating said levers.

6. The combination with a track, of a door having frictional means for normally engaging said track, throw-out members engaging said track for initially elevating the door and moving the same outwardly, rollers mounted upon said door and engaging said track, and means for actuating said throw-out members and rollers, said throwout members first serving as fulorum members for initially elevating said door and said rollers serving as iinal fulcrum members for completing the elevation of the door, and elevating said throw-out members above said track.

7. The combination with a track, of a door having frictional means for normally engaging said track, throw-out members connected to said door and fulcrumed upon said track, rollers connected to said door and resting upon said track, and means for simultaneously actuating said throwout members i'or moving the door upwardly and outwardly for support upon said rollers.

8. The combination with a track, of a door having throw-out members normally resting upon said track, rollers upon said door and engaging said track and means for simultaneously actuating said throw-out members for elevating the door and moving the same outwardly for support upon said rollers, and further elevating said door upon said rollers as fulcrums for elevating said y throw-out members above said track.

9. In a house cai1 having a track, a door having frictional means normally engaging said track, roller housings movably mounted upon said door,

rollers carried by said housing, means including f 10. The combination with a track, of a door having frictional means normally engaging said track, roller housings connected to said door, rollers carried by said housings and resting upon said track, throw-out members connected to said door, and simultaneously operable levers connected to said housings and throw-out members, for rst elevating the door and moving the same outwardly upon said throw-out members as fulcrums, and further elevating the door with said rollers serving as fulcrums for elevating said members above said track.

11. In a house car having a door supporting track, a door, throwout members connected to said door and normally resting upon said track, means for actuating said throw-out members for initially elevating the door and moving the same outwardly, roller housings pivoted for longitudinal movement with respect to said door and con nected to said means, and rollers carried by said housings and serving as fulcrum members upon said track for further elevating said door.

12. In a house car having a track, a door, a pair of members engaging said track and connected to one end of said door, a second pair of members engaging said track and connected to the other end of said door, and operating means connecting said members and operable for partially elevating said door through the coaction of one member of each pair between said door and track and completely elevating fthe door through the coaction of the other members between said door and track.

13. The combination with a track, of a door having riotional means normally engaging said track, roller housings connected to said door, rollers carried by said housings and engaging said track, operating means connected to said housings for elevating the door with respect to said housings and devices resting upon said track and connected to said operating means for initially elevating the door in advance of the elevation effected by said roller housings.

14. The combination with a track, of a door having frictional means normally engaging said track, manually operable mechanism, rockable members on said track and connected to said mechanism for initially elevating said door, and rolling means on said track connected to said door and mechanism for further elevating said door.

15. In a house car having a door supporting track, a door having frictional means and rolling means for alternately engaging said track, actuating means for causing relative vertical movement between said door and rolling means, and means resting upon said track and connected to said actuating means for initially elevating the door.

FREDERICK C. HEINEN.

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