US 1486595 A
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Description (OCR text may contain errors)
March 11 1924. 1,486,595
C. A. MARCUM DOOR FAS TENER 6l 115;?? 59952.. 5. l 5/ I rename ma. ii, ieee.
CLAD A. MARCUM, F JOPLEN, MESSOURI.
Application filed September 28, 1921. Serial No.. 503,752.
To all whom t may concern.'
Be it known that l, CLAUD A. MARCUM, citlzen of the United States, residing .at
Joplin, in the county of Jasper and State of Missouri, have invented certain 'new and useful Improvements in Door Fasteners, of which the following is a specification.
rlhis invention relates to door `lfasteners and more particularly to a novel and improved lock or latch for vehicle doors, particularly applicable for automobiles.
The primary object of the invention is to provide a simple, yet economical and effective door latch for motor vehicles and the like, in which the lock bolt is retracted against the resistance of a spring by a hand lever and carries a latching roller, cooperating with a keeper, whereby the door may be maintained closed and easily removed from its latched position.
Another and very important object of the invention is the construction of a lock for vehicle doors and the like, wherein the spring controlled latch bolt and its rol'ler cooperating with a keeper will not jam when closed and may be easily retracted by the operating lever without material pressure.
Another and equally important object of the invention is the provision of a door lock or latch adapted for use on various types of motor vehicle doors and the like, and one in which the parts are extremely simple in construction, easily assembled, rigid and durable, highly efficient in operation, practical and v capable of being manufactured at a very low cost, whereby its commercial possibilites are greatly enhanced.'
l attain these objects and others, in the accompanying drawings, wherein:
Figure 1 is a plan view, showing parts in section.
Figure 2 is a side view of the locking medchanism as applied to the door and car; n
Figure 3 is a detail view of the roller in cooperation with the keeper.
Referring now to the drawings, wherein like reference characters designate corresponding parts throughout the several views, 5 designatesaportion ofthe car door and 6 the car frame, to which the latch bolt and keeper respectively are secured in a manner now to be set forth in'detail. The door 5 is provided with an enlarged recess 7 therein, in which a substantially rectangular housing 8,
is secured and countersunk in the said front wall of the door is a late 9, bearing against the front of the houslng 8 and has an aperture therethrough, to permit of the moveunent of the latch bolt, subsequently to be referred to. The rear wall 10 of the housing is also provided with a slot or recess to permit of the sliding movement of the latch bolt 11, which as shown is provided with a coiled spring 12 thereon, bearing against the inner side of the rear wall 10 and against the end 13 of a substantially rectangular, squared extension 14, formed integral therewith. The said extension 14 operates between a pair of rollers, constituting guides 15, 16, the reduced ends or spindles 17 of which are mounted in the side walls of the housing 8, above referred to. rllhe said extension 14 also has formed integral therewith lugs 18 at its top and bottom, which constitute stop members for the latch bar, said lugs adapted to engage the front plate 9 in its extreme inward movement. rlhe front portion of the squared extension 14 is adapted to pass through the plate 9 and operates in a keeper, the said front extension being formed with a yoke, the arms 19, 20 of which carry the roller 21 therein, the shaft of said roller having la nut 22 on the threaded end 23 thereof, as clearly shown by Figure 3 of the drawings. y
The cooperating keeper 25, which is seated within a recess 26, formed in the car body adjacent the door 5, has its ianged or bent portions 27, 28 curved upwardly and downwardly respectively and secured in the body portion of the car, said curved portions e'ectively cooperating with the roller in the opening and closing movement of the lock or latch. The opposite end of the latch bolt 11 also extends through the opening in the rear wall 10 of the housing and has formed integral therewith an attaching member 30. The arms 31, 32 of the attaching member are connected by a pin 33, whereby the said member may be held securely on the vertically extending bolt 34, secured in the bottom slide block 35. The respective arms 31, 32, above referred to, are preferably provided with elliptical slots 36 therein, to permit of rocking movement of the nut 37 held on the end of the spindle 38 of the operating lever 39, said nut movable between the said arms and provided with a semi-circular slot or recess 40, adjacent the rod 34C, to permit of rotation of the spindle 38 in its flanged bushing 41, whereby the latch bolt may ,be retracted against the resistance of the spring 12, as clearly shown' by the fi ures of the drawing. The upper end oi the'rod '34 1s secured to an upper slide block 35 and the rod and the blocks 35 and 35 are adapted to be bodily moved rearward to operate the latch bolt uponactuation of the handle 39. The blocks 35 and 35 are mounted in suitable guide ways 34 carried by the door. The usualhand piece, preferably made of leather, shown. by 43, is secured on the top of the car door, concealing the to of the rod 34 and its guide 34C', as clear y illustrated.
From the above construction, it will be readily seen that by simply turning the lever 39, the spindle 38 and nut carried thereby will move the rod 34 attaching member 30 and the latch bolt 11 against the resistance of the spring, bearing against the rear wall 10 and the end 13 of the front extension 14. The said extension, of course, operates between the guide rollers- 15, 16, and consequently permits of the retraction of the roller 21 from the curved keeper 25 of the car body proper. Furthermore the lugs 18 on the said extension 14 limit the inward movement of the roller and thus prevent the same from being jammed or stuck in its keeper and assures proper operation of the device. A
In the accompanying drawings, Ihave illustrated my invention embodied in one form by wayof example, and which in practice has been found to be highly satislfactory in obtaining the desired results. vIt
will be obvious however that other embodiments may be ado ted, and that various changes in the details of construction may be resorted to by those skilled in the, art without departing from the spirit and scope of the invention. It is furthermore understood that the invention is not necessarily hmited or restricted to the precise elements shown except in so far as such limitationsl 1n the subject matter being are specified claimed.
What I claim as new is: 1. In a door lock, a housin a sliding bolt carried by the housing inc uding a cylindrical body portion, an enlarged exten-f sion at one end having plain side faces and a slotted extension at its op osite end, a spring coiled about said cylin rical portion ergavm the enlarged portion and one end o t e bolt outward of the housing, gui e rollers carried by the housing engaging the plain side faces of the enlargement, a rotatable spindle extended through the slotted portionl ousing for normally ur ing the' of the bolt, and means carried by the spindle for actuating the bolt against the tension of said spring means.
2. In a door lock, a housing, a sliding bolt carried lby the housing including a cylindrical body portion, an enlarged flat extenrotatable spindle extending through the slots of the bifurcated portion and a cam carried by the spindle for en aging said rod.
In testlmony whereof I a my signature in presence of two witnesses.
CLAUD A. MARCUM. i Witnesses:
H. M.`WARREN, Jr., J AMES ERAMSEY.