US1940191A - Opening and closing device for car doors - Google Patents

Description

Dec. 19, 1933. J. H. SIMONTON 1,940,191

OPENING AND CLOSING DEVICE FOR CAR DOORS Filed Dec. 12, 1929 JEJz'r/z onion SI Patented Dec. 19, 1933 PATENT OFFICE OPENING AND CLOSING DEVICE FOR CAR DOORS John H. Simonton, Brighton, Tenn., assignor of forty-nine percent to Charles Pressley Simonton and Charles B. Simonton, both of (lovington, Tenn.

Application December 12, 1929 Serial No. 413,601

1 Claim.

The object of this invention is to provide novel means for operating a door.

In the accompanying drawing: Figure 1 is an elevation showing a device constructed in accordance with the invention;

Figure 2 is a section on the line 2-2 of Figure 1;

Figure 3 is a section on the line 3-3 of Figure 1. V

In the drawing, the numeral 63 designates any structure on which a sliding door may be used. A lower track 64 and an upper track 65 are shown. Striking posts appear at 66 and 67, and retaining fingers on the post 66 are shown at 68, the door 69 engaging behind the fingers when the door is closed. A latch mechanism '70 for the door 69 is provided. The upper edge of the door 69 is slidably engaged with the upper track 65. Wheels 71 are located in recesses '72 in the door 69 and are journaled at '73 on the door. The wheels '71 roll in a groove '74 in the lower track 64. A rack or track 75 is secured in a groove in the upper edge of the lower track 64. An eccentric '76 is journaled in the door 69. A shaft 7'7 is mounted to turn in the eccentric '76. The shaft 7'7 carries a crank '78, or other operating means, at its outer end. A pinion '79 is secured to the inner end of the shaft '77 and is located in a recess 80 formed in the rear side of the door 69. On its forward end, the eccentric '76 has an enlarged disc-like head 81. The head 81 overlaps the outer surface of the door 69 and the pinion '79 overlaps the inner surface of the door, and, thus, the eccentric 76 is held for rotation in the door. The pinion '79 meshes with the rack or track '75. The head 81 of the eccentric '76 is provided with a handle 82 having resiliency enough so that it can be engaged in, and disengaged from, seats 83 and 84 formed in a curved keeper plate 85 on the door 69.

When the handle 82 on the eccentric '76 is engaged in the seat 84, the pinion '79 is engaged with the rack or track '75. The shaft 7'7 can be turned by means of the crank '78, and when,

the shaft is turned, the door 69 can be slid to the right or to the left, because the pinion '79 on the shaft '77 is engaged with the rack or track '75.

In the event that it is desired to shift the pinion '79 out of engagement with the rack or track '75, so that the door 69 can be slid quickly, by the application of considerable force, this can be done by engaging the handle 82 in the seat 83. When the handle 82 is shifted from the seat 84 to the seat 83, the eccentric '76 is rotated, the shaft 7'7 being lifted, and the pinion '77 disengaged from the rack or track '75.

What is claimed is:--

In a device of the class described, a structure having a doorway, a door for the doorway, means for mounting the door slidably on said structure, an eccentric journaled in the door, a lever connected to the eccentric, means on the door for holding the lever in adjusted positions, a rack carried by the said structure, a shaft journaled in the eccentric, and a pinion carried by the shaft and meshing with the rack.

JOHN H. SIMONTON.

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