US2721753A

US2721753A - Strike

Info

Publication number: US2721753A
Authority: US
Inventors: Loeb Morris
Original assignee: Individual
Current assignee: Individual
Priority date: 1955-01-04
Filing date: 1955-01-04
Publication date: 1955-10-25
Anticipated expiration: 1972-10-25

Description

Oct. 25, 1955 M. LOEB STRIKE Filed Jaxi. 4, 1955 INVENTOR. MORR S LOEB By M W h m A 3 V 2 2 5 ml /4 p O\ 4: s ATTORNEY United States Patent STRIKE Morris Loeb, New York, N. Y. Application January 4, 1955, Serial No. 479,734

1 Claim. (Cl. 292-34115) This invention relates to strikes for cooperation with the bolt or nose of a lock having a cam face and a locking face.

Among the objects of the present invention it is aimed to provide an improved strike bar for cooperation with the bolt or nose of a lock for a door or the like, which lock has a cam face and a locking face and which strike bar is provided with resilient means for yieldably maintaining the strike bar in anchoring or locking position but enabling the strike bar to be deflected when engaged by the cam face of a bolt to clear the bolt and in turn to express or extend the strike bar to cooperate with the locking face of the bolt in locking or anchoring position of the door after the bolt has been cleared.

These and other features, capabilities and advantages of the invention will appear from the subjoined detailed description of one specific embodiment thereof illustrated in the accompanying drawings, in which Fig. 1 is a fragmental side elevation partly in section showing a strike made according to the present invention with a lock in operative position.

Fig. 2 is a section on the line 22 of Fig. 1.

Fig. 3 is a bottom plan view of the strike with the cover plate and spring removed.

Fig. 4 is a section on the line 44 of Fig. 3 with the spring and cover plate in position.

Fig. 5 is a section on the line 55 of Fig. 3 with the spring and cover plate in position.

Fig. 6 is an exploded view of the strike including its cover plate.

In the embodiment shown, the strike 1 consists essentially of a casing 2, a cylindrical rod constituting a strike bar 3, a flat spring 4 and a cover plate 5, the strike bar 3 and spring 4 being floatingly mounted in the casing 2.

In use, the strike 1 is attached to the frame 6 to receive the spring pressed nose or bolt 7 of the lock 8 mounted on the door 9. The bolt 7 has a cam face 10 and a locking face 11.

The casing 2 has a flange 12 and two outwardly extending

chambered bosses

13 and 14 spaced from one another by a distance approximately a little in excess of one-third of the length of the casing 2. Between the

bosses

13 and 14 access is provided to the elongated recess 15 in the casing 2, the

chambers

16 and 17 in the

bosses

13 and 14, respectively, being substantially continuations of the recess 15.

In the bottom of the casing 2 and extending across the recess 15 there is provided the countersunk recess 18 to receive the cover plate 5 after the flattened out bowshaped or V-shaped flat spring 4 is placed in the casing 2. When assembling the strike 1, the round rod 3 is first positioned in the

recesses

16 and 17, then the flat spring 4 inserted with its

curved ends

20 and 21 engaging the rod 3, and then the cover plate 5 positioned in the countersunk recess 18 engaging the bulge 22 of the fiat spring 4. The diameter of the rod 3 and the width of the flat spring 4 conform substantially to the width of the recess 15 and to the width of the

recesses

16 and 17 in the

bosses

13 and 14, thereby to capture the same and guide them in their operation. After the parts have been so assembled the casing 2 with the cover plate 5 engaging the frame 6 is secured in place by the screws 23 passing into the frame 6 after passing through the

openings

24 and 25 in the casing 2 and through the

openings

26 and 27, respectively, in the cover plate 5.

In use, when the door 9 is closed, the cam face 10 of the nose 7 is brought into engagement with the strike bar 3 and then by the yieldability of the strike bar 3 provided by the spring 4, and the yieldability of the nose 7 brought about by the springs 28, the strike bar 3 and nose 7 are deflected until the bar 3 clears the nose 7 and allows the springs 28 to return the nose 7 into extended position where now the locking face 11 of the nose 7 will engage the strike bar 3 in the dotted line position shown in Fig. 1. In turn, when it is desired then to open the door 9, it will only be necessary to turn either the handle 29 or the handle 30 to retract the nose 7 to clear the strike bar 3.

In the present instance, the bulge 22 of the flat spring 4 will engage an abutment such as the cover plate 5 and the

end portions

20 and 21 of the flat spring 4 will engage the cross bar 3, as distinguished from the copending application executed contemporaneously herewith, where the bulge of the fiat spring engages the strike plate and the end portions of the flat spring engage an abutment such as the cover plate.

It is obvious that various changes and modifications may be made to the details of construction without departing from the general spirit of the invention as set forth in the appended claim.

I claim:

A strike for cooperation with a lock bolt having a cam face and a locking face, said strike comprising a casing 1 having a bottom side and a narrow recess extending inwardly from said bottom side and a top wall having an opening therein in communication with said recess and forming two chambered alined bosses in alinement with and at the ends of said opening, a cover for said bottom side to close said recess at said bottom side, a cylindrical rod constituting a strike bar substantially conforming in width to the width of said recess disposed in said recess and its ends in said bosses and exposed at said opening between said bosses, and a flat spring having an intermediate bow terminating in two free ends in width corresponding to the width of the recess and the bow being greater in depth than the width of said recess to insure positioning said spring below said rod and having end portions flaring outwardly from its intermediate bow tensed between said cover and said rod with said bow engaging said cover and said flaring end portions engaging said rod maintaining said rod in extended position but yieldable to permit said rod to be deflected inwardly when engaged by the cam face of said bolt and inturn to return said rod to extended position for clearing said bolt and thereupon to engage the locking face of said bolt, said cylindrical rod and flat spring being floatingly mounted in said casing.

References Cited in the file of this patent UNITED STATES PATENTS 718,002 Keller Jan. 6, 1903 1,335,027 Popovich Mar. 30, 1920 2,583,391 Quinn Jan. 2, 1952 FOREIGN PATENTS 561,248 Germany Oct. 12, 1932 OTHER REFERENCES Publication American Builder, page 23, Jan. 1954