US1426445A - Door latch - Google Patents

Description

O. A. ANDERSON.

DOOR LATCH. 7 APPLlC-ATION FILED JULY 20,1921.

Patented Aug. 22, 192-2.

OLAF A. ANDERSON, OF HAMILTON, OHIO.

DOOR LATCH.

Specification of Letters Patent.

Patented Au 22, 1922.

Application filed July 20, 1921. Serial No. 486,047.

T 0 all whom it may concern:

Be it known that I, OLAF A. ANDERSON, a citizen of the United States; and aresident of Hamilton, county of Butler, State of Ohio, have invented certain new and useful Improvements in Door Latches, of which the following is a specification.

This invention relates to door latches especially adapted for use in connection with motor vehicle doors and more particularly to the keeper or strike plate to be used in connection with door latches.

It is one of the objects of the invention to provide a keeper or strike plate that may be readily substituted for the conventional strike plate now in use on existing motor vehicles so that the spring pressure behind the door latch may be utilized to hold the door firmly against the stop and thereby prevent rattling.

A further object of the invention is to rovide a simple and comparatively inexpensive strike plate embodying the. antirattling feature and which will be adapted for use in connection with the door latches now commonly used.

Other objects of the invention and the features of novelty will be'apparent from the following description taken in connection with the accompanying drawings, of which;

Figure 1 is a plan of a fragment of a vehicle door and the adjacent part of the body certain parts being shown in section;

Fig. 2 is a side elevation of the strikeplate and door shown in Fig. 1, the parts being illustrated as seen from the left of .-Fig. 1, with the .adjacent portion of the body omitted;

Fig. 3 is a view similar to Fig. l but showing the parts of the strike plate in another position; and

Fig. 4c is a view similar to Fig. 1 showing a modification of the strike plate.

Referring to the drawings, 10 indicates a fragment of the vehicle body and 11 a fragment of a door which is adapted to close against a stop 12 on the body. A latch is diagrammatically indicated at 13 and a spring for pressing the latch outwardly is indicated at 14. In this connection it will be understood that the parts 13 and 14 merely represent the corresponding parts of any of the usual door latches. A keeper or strlke plate is indicated at 15 and is provided with the usual abutments 16 and 17 with i which the latch 13 is adapted to cooperate for the purpose of retaining the door 11' in the closed or partially closed position. At the rear of the strike plate 15 there are lugs or cars 19 and 20 between which a slot is milled or otherwise formed to receive a pin 21 which is slidable transversely of the direction of movement of the latch 13, into engagement with the latter to force the door 11 against the stop 12.

A bell crank lever 22 on a pin 23 on the ears 19 and 20 and has a relatively long arm, the outer end of which is provided with a toe 24 which projects over the abutment 16 into the path of movement of the latch 13 in entering the strike plate. The lever 22 has a soft arm 25 which projects into a slot 26 in the pin 21 so that the pin will be actuated by the movement of the lever. The leaf spring 27 is secured at one end on the back of the lever 22 by a rivet or screw 28 and has its opposite end turned at right angles and broadened out as indicated at 29 in Fig. 2 to engage the ears 19 and 20. The function of this spring is'to press the lever 22 forward toward the latch 13.

From Fig. 1 it will be readily seen that the pressure of the latch 13 against the toe 24.will be multiplied by the bell crank 22 so as to greatly increase the pressure of the pin 21 against the latch and thereby securely hold the door 11 against the stop 12 and prevent rattling.

In Fig. 3 the parts of the strike plate are shown in their retracted positions with the latch 13 entering the strike plate and about to engage the toe 24. In moving from the position shown in Fig. 3 to that shown in Fig. 1, the latch 13 will cause the pin 21 to be moved against it and thereby force the door against the stop 12.

It will be observed that the end of the pin 21 which engages with the latch 16 is slightly beveled with reference to the longitudinal sides of the pin so that when the pin is pressed againstthe latch 13 the normal tendency will be to also hold it against the bottom 30 of the slot in which the pin moves.

Referring to Fig. 1 it will be observed that this modification is generally similar to the one just described with the exception that the pin 21 has all of its longitudinal sides housed in the strike plate 15 which may be accomplished by having a round pin is pivotally mounted instead ofone of rectangular cross-section" as indicated in Figures 1 and 2, and drilling a suitable hole through the body" of vthe strike plate;

The bell 'cranklever 22 has a relatively short arm 25 adapted to cooperate with the end or the pin 21' and the outer end of the pin is beveled as indicated at 31 so that if, when the door 11' is-closed, the pin 11 against the stop is somewhat simpler than the one previously described and has the advantage of elimiw 7 claims,

21' stands in the position indicated in Fig. hits exposed end will be forced back into the strike plate by the latch 13, after which the latch will engage with the toe 24 of the bell crank lever and return the pin 21 against the latch 13 so, as to hold the door 12. This construction natingfthe spring 27. 4

While 1 have indicated on the drawings and described what now consider the preferred embodiments of my invention yet ,it will be understood thatfchanges in the movement of the latch, into engagement with the latter, and a pivoted lever having one'arm in position vto be actuated bysaid latch and another arm-operatively connected with said memberto actuate'same.

2. In a device of the class described, the combination of a strike late for door latches, a member carrie thereby and x '1' movable transversely of the direction of I movement of the latch, into engagement the latter, and a pivoted lever having a relatively long arm in position to be late for door actuate same. i v v 3; Ina device of the class described, the

combination of a strike late for door.

latches, a member carrie thereby and movable f in a straight line transversely of the direction of movement of the latch, into engagement with' the latter, and 'a" pivoted bell crank, lever'having a relatively long arm in position to" be actuated by said l'atch-in entering said plate, and a short arm engaging said member to actuate-the same. 1

4. In a device of the class described, the combination of .a strike late -for door latches, a member carrie movable in a straight line transversely of beveled end With which the latch is adapted to'cooperate on'entering the keeper to retract said member, and a pivoted bell crank lever having a relatively long arm in-posi tion'to be engaged by said latch'after said member has been "retracted and ashort arm engagingsaid member and adapted to press same against said latch.

f 5. In adevice of the class described, theoombination ot a strike plate for door latches, a pin I carried by said plate and actuated by said latch, and; a short 'arm operatively connected with said member to thereby and i a I 3 the direction ofmovementof the latch, into engagement with the latter and having a movable therein transversely of the direction of movement of the latch, into engage-- ment with the latter, a pivotedlever'ha'v ing one arm positioned to be actuated by said latch when the latter enters said plate and another arm for moving said pin 5 ,against the latch when the latter moves the first arm, and a spring for maintainingvsaid pin and lever in position to be actuated by thelatch-When thelatter enters said plate.

llntestimony whereof afix my signa-.

ture;

or an a. nnnnason.

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