Rim friction catch

Oct. 10, 1939. G. E. hagstrom 2,175,348

RIM FRICTION CATCH Filed April 13, 1938

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ATTORNEY.

Patented Oct. 10, 1939

2,175,348

UNITED STATES PATENT OFFICE

2,175,348

RIM FRICTION CATCH

Gotthard E. Hagstrom, Hamden, Conn., assignor to Η. B. Ives Co., New Haven, Conn., a corporation of Connecticut

Application April 13, 1938, Serial No. 201,659

Claims.

This invention relates to locking devices and has particular reference to spring catches for reliably holding a door closed.

One object of the invention is to provide a de5 vice of the character described of improved simplified arrangement and construction so that it can be manufactured to sell in competition with the catches that are generally used in the inexpensive types of closets and the like.

Another object of the invention is to provide a one piece sheet metal casing.

Another object of the invention is to provide an improved means for securing the latch bolt mounting pin.

Another object of the invention is to provide an improved spring and mounting therefor.

Another object of the invention is the provision of an improved strike especially adapted for rapid and easy mounting in closets.

A further object of the invention is to provide an improved coordination of the casing and latch bolt to secure a high degree of compactness and reliability.

Other objects and advantages of the invention 25 will become apparent as the specification proceeds.

With the aforesaid objects in view, the invention consists in the novel combinations and arrangements of parts hereinafter described in 30 their preferred embodiments, pointed out in the subjoined claims, and illustrated in the annexed drawing, wherein like parts are designated by the same reference characters throughout the several views.

In the drawing:

Figure 1 is a view in side elevation in closed position showing a device embodying the invention, mounted on the bottom wall and on the door of the closet, shown in section.

Fig. 2 is a similar view with parts of the device in section and shown as about to interlock.

Fig. 3 is a plan view of the strike.

Fig. 4 is a front view of the latch.

Fig. 5 is a top edge view of the spring.

Figs. 6 and 7 are like central transverse sectional views of the latch, the first showing the latch bolt in open position and the other showing it in locking position, with the spring omitted.

Fig. 8 is a view of a blank for the casing.

The advantages of the invention as here outlined are best realized when all of its features and instrumentalities are combined in one and the same structure, but, useful devices may be produced embodying less than the whole.

It will be obvious to those skilled in the art (Cl. 292—78) to which the invention appertains, that the same may be incorporated in several different constructions. The accompanying drawing, therefore, is submitted merely as showing the preferred exemplification of the invention. 5

Referring in detail to the drawing, 10 denotes a device embodying the invention. The same may include a latch II mounted on a door 12 and a strike 13 mounted on any relatively stationary wall part such as the bottom wall 14 of 10 a closet.

The latch 11 includes a casing 15 which may be made as a casting, but preferably consists of a one piece sheet metal blank 16 as shown in Fig. 8, hereinafter described. Said casing may in- 15 elude a back wall IT, top and bottom walls 18, 19 respectively, and end walls 20, cooperating to afford a front opening. The back wall IT may lie in a plane and may have end tabs 21 projecting beyond the casing proper to mopnt the same. 20 The top and bottom walls 18,19 project forwardly from the back wall at the top and bottom thereof. The end walls 20 preferably project upward from the bottom wall 19 and cooperate with the walls 17,18 and 19 to form a box like structure. 25

Formed on the bottom wall 19 at the front edge thereof are extensions that are shaped to provide a plurality of alined spaced ears 22 which desirably lie above the plane of the bottom wall 19, and preferably at least partially within the cas- 30 ing. Since the ears 22 lie closely adjacent to the end walls 20, the latter form stops or closures therefor to prevent accidental removal of a pin 23 upon which-the latch bolt 24 is pivotally mounted. It will be noted the bottom wall 19 35 forms at least a part of the ears 22 for a simplified construction.

The latch bolt 24 is disposed between the ears 22, and is mounted for swinging movement between the generally horizontal open position 40 shown in Fig. 6, and the generally vertical locking position shown in Fig. 7. Thus the latch bolt includes an outward extending catch part having a cam face 25, and a tail part 27 which is normally disposed in the casing. 45

To accommodate the latch bolt, the bottom wall 19 may have a cut out 28, with whose forward edge the latch bolt has stop engagement at 29 as shown in Fig. 7. Also, with the ears 22 formed against said bottom wall 19, the latter may have 50 a depression or recess 30 to partly accommodate the tail end 27 of the latch bolt to permit the latter to assume a substantially horizontal position, with the tail end 27 having stop engagement with said bottom wall in said depression 30. 55

2,175,348

Coacting with the latch bolt is a U-shaped strip spring 31, having an arm 32 bearing against and extending along the back wall 17, with the spring being fitted between the top, bottom and end walls of the casing so as to be reliably retained therein, and the front spring arm 33 bearing against the end of the tail portion 27 as shown in Fig. 2 and against a side thereof as shown in Fig. 4, to thus releasably retain the latch bolt in open and closed positions.

The blank 16, of which the casing is formed, may include sections like those hereinbefore described, but for differentiation denoted by like numerals with the letter “a” appended thereto, and the dotted lines indicating the lines of bending.

The strike 13 is a one piece structure having a securing plate portion 34, from which extends the lateral upwardly offset section 35. The latter may have an opening 36 to receive the latch bolt, and an upward projecting lip 37 at the front edge of said opening.

When the door 12 is being closed as in Fig. 2, the point of the latch bolt 24 engages under the lip 37, and the cam face 25 causes the latch bolt to swing downwardly to enter the opening 36, as shown in Fig. 1. When the door is being pulled open, the rear edge of the opening 36 engages the latch bolt and swings the latter to the open position.