US1674924A - Latching device - Google Patents

Description

June 26, 1928.

J. SCHORR LATCHING DEVICE Filed Feb. 24, 1925 I N VEN TOR.

Patented June 2%, 1%28.

stares li it? JOHN sononn, or s'r. PAUL, Mrnnnsorn, ASSIGNOR or onn rnrnn TO HENRY J. KLAUER, or DAVENPORT, IOWA.

LATGHING- DEVICE. I

Application filed February My invention relates to latching devices and is designed primarily for use Where the latching device is to be operated by a cable or other means at a distance from the latch. It is intended primarily for use in connection with door operating mechanisms, but it is obvious that it may be used for a large variety of purposes.

The objects of my invention are:

To provide a latch which will lock an operating lever in a given position when moving in either direction and which can be released by pulling a. cable in the direction in which is desired to move the operating lever.

I attain these objects by the means lllustrated in the accompanying drawing in which,

Figure 1 is a plan view of my latch mounted upon the operating lever in juxtaposition to the rack or curved bar upon which one end of the operating lever slides; Fig. 2 is a longitudinal section of my latching device on the line 2, 2 of Figure 1; Fig. 3 is a cross section on the line 3, 3 of Figure 1 and Figure 4 is a cross section on the line 4, 1 of Figure 1.

In Figure 1, 8 is an operating lever pivoted at 5 and mounted to slide upon the rack or bar, 1. Notches, 6 and 6 are formed in the bar, 1, to act as seats for the latches.

The latch consists of a head, 15, mounted upon the lever, 8, at its outer end. This head is substantially H-shaped. The inner end of the head, 15, is provided with square holes, 17, in which the latches, 7, are slidingly mounted. The opposite ends of the latches, 7, are rounded and slidingly mount.- ed in the outer branches of the head, 15, with compression springs, 9, surrounding the latch-es, 7, between the inner and outer branches of the head, 15. The inner ends of the springs, 9, are secured to the latches, 7 and the outer ends bear against the inner face of the outer branch of the head, 15, so that the spring exerts a constant pressure against the latch in the direction of the rack or bar, 1.

A. rocking member, 14, is pivotally secured to the outer end of the head, 15, with lugs extending laterally therefrom and links, 10, are secured to the latches, 7, and extend through the lugs in the rocking member and are secured in place by lock nuts, 11. The outer end of the rocking member is provid- 1925. Serial No. 11,298.

ed with a pin or other means to which the operating cables, 12 and 12*, can be secured.

It is obvious that the form and proportion of the various parts of my device may be varied to a considerable extent without departing from the spirit of my invention. Various forms of springs may be used and the latches may be either round, square or flat. The inner end of the latches may be beveled and'the notches in the bar, 1, correspondingly beveled where it is desired to have means for locking the lever in different positions. I

In the drawings, I have shown only two notches in the bar, 1, and these are intended to indicate the extreme desired throw of the operating lever. It is also obvious that the rocking member may be operated by a cable or lever or other means or it may be operated directly by hand and its form varied to accommodate the particular method of operation which it is desired to utilize.

In the operation of my device, the operating lever is brought into the position shown in Figure 1 by pulling upon the cable, 12*. As soon as the operating head is moved sufficiently to the right, the right latch will drop into the notch, 6 and lock the lever against further movement in that direction. l/Vhen it is desired to move the lever in the other direction, the cable 12 is pulled, which rocks the rocking member, 14, upon its pivot and withdraws the latch from the notch, 6 The head is then free to slide upon the bar, 1, until the left latch drops into the notch, 6, which will lock it against further movement and in which position it will remain until a pull upon the cable, 12, releases the latch and allows the lever to be drawn toward the right. This form of latch is especially adapted to operating mechanisms for garage doors, but it is obvious that by modifying the forms and proportions of it, it will be applicable to a large variety of other uses and can be utilized to do away with the necessity of attaching the locking lever to a manually operated lever.

The use of a rocking bar in such a case will allow a direct pressure in a given direction to be applied to the rocking bar and to be continued in the same direction after the latch is withdrawn to move the lever, thus allowing a more rapid operation of a latch lever than can be obtained by the ordinary means now in use.

I claim: 1. In a latching apparatus, the combination With a head having a pair of latches 'tion with a head having a latch slidingly mounted thereon, of a rocking member pivoted upon the head, and a link connecting the latch to the rocking member.

3. In a latching ap'paratlfls, the combination with a head having a spring-held latch slidingly v mounted thereon, of a rocking member pivoted upon the head, and a link connecting the latch to the rocking member. I h

4. In a lever latching apparatus, the combination With a lever carrying a head having a latch slidingly mounted thereon, of a rocking member pivoted upon the head, and a link connecting the latch to the rocking member. H

5, In a latching apparatus, the combination With a head having a pair of latches slidingly mounted therein, of a rocking member pivoted to the, head, links securing the latches to the rocking member on opposite sides of its pivot, and actuating means attached to the rocking member.

6. In a lever latching device, the combination With a lever and notched bar adjacent thereto, of a head secured upon the free end of the lever adjacent the notched bar, a latch slidingly mounted in the head adapted to enter alnotch in the notched bar and lock the lever against movement thereon, a

rocking member pivoted to the head and a link connecting the latch and rocking member.

7. lever latching device, the combination with a lever and a notched bar adjacent thereto, of a head secured upon the free end of the lever adjacent the notched bar, latches slidingly mounted in the head adapted to enter notches in the notched bar and lock the links connecting the latches and rocking member and means for actuating the rock mg member uponits pivot.

In testimony whereof he atlixes his si.g'

nature.

JOHN SCHORR.

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