NL7811334A - Door lock with day bolt - has lever forming locking catch on axis parallel to handle retracting bolt - Google Patents

Abstract

The lock has a day-bolt retracted by a handle, together with a hand-operated catch locking the handle in an end position. The catch comprises a rocking lever (11) on an axis (13) parallel to the axis (7) of the handle (10). To retract the bolt, the hand-operated arm of the lever is moved in the opposite direction to the handle to release the catch. Lever and handle axes can be parallel to the direction of movement of the bolt, and they can be spaced apart.

Description

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785109 / Ti / Rdm / sn _ _

Applicant: Stenman Holland B.V. in Veenendaal.

Title: Door lock with latch.

The invention relates to a door lock with latch, a movably mounted handle for retracting the latch and a manually operated ratchet mechanism for locking the handle in an end position.

Such locks are generally known and usually have a sliding catch which is arranged such that the handle with the bolt attached thereto is in a retracted position, ie a retracted position of the bolt can be locked so that the door can no longer be locked. key needs to be opened.

10 Front door locks for inward opening doors are placed at about 1 meter height in the middle of the door for accessibility. fitted. According to regulations of the P.T.T. the letter plate should be placed at about the same height, so that the mailman does not bend over. Moreover, the letter plates according to these regulations have a considerably larger passage than many letter plates previously. The combination of lock and letter plate on one door means that the lock can be reached from the outside through the letter plate opening with a steel or hook.

The object of the invention is to prevent inclusion, when the lock is not in the night position, which inclusion can easily be effected by means of a hook which is inserted through the opening in the letter plate to reach the handle and thereby to retract the latch. This is based on the idea of providing an easily manageable security which assumes practicing two simple actions in one and the same movement almost simultaneously, namely pressing with the thumb and pulling 78 1 1 3 3 4

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'4' _ 2 _% with the fingers, without having to exert great forces, as is the case, for example, with ventilation windows in cars, in which a hook-shaped latch is provided with a push button that must be retracted with the thumb, whereby the latch is the axis 5 of the push button moves and relatively large forces have to be overcome.

According to the invention this is achieved with a door lock of the above-mentioned type, characterized in that the palm mechanism is a tilting lever, the tilting axis of which extends parallel to the tilting axis of the handle and for retracting the latch bolt. manually operated arm of the lever is opposite to the direction of movement of the handle for lifting the ratchet action.

The advantage of this is that, by using a tiltable lever, relatively large arms and large contact surfaces can be used, so that the door lock is easy to handle when the latch is retracted.

According to the invention the tilting axes of the lever of the ratchet mechanism and of the handle preferably run parallel to the direction of movement of the latch bolt.

A practical embodiment of the door lock according to the invention consists in that the lever of the ratchet mechanism is a two-armed lever, of which a first arm is the manually operable arm and a second arm is provided with a part which engages behind a ten Angled part of the door lock or handle relative to the direction of movement of the handle.

The invention will now be explained in more detail with reference to the accompanying drawing 3xj, while further features of the invention will also be described.

30 _ In the drawing are: 781 1 3 3 4 _ 3 _>

Fig. 1 is a perspective view of a door lock provided with a handle for a day treasure and

Fig. 2 is a schematic side view of the door lock of FIG. 1 with a portion thereof in section.

The door lock shown in the drawing is of the type as described in the non-prepublished patent application 78.01711.

The lock consists of the lock case with mechanism 1 and the latch 2. The lock is hereby provided with a mounting piece 3 and the lock cylinder 4. The handle 5 can herein be tilted with the parts 6 and the pin 7 in the direction of the arrow 8 in order to retract the bolt 2 in the lock case 1. The pin 7, which forms the tilting axis of the handle 5, is thus placed parallel to the direction of movement of the bolt 2. The handle 5 is hereby formed by two legs 9 with a jug 10 therebetween. 15 fingers of the hand pulled the comb 10 away from the lock case 1.

Between the legs 9 and under the comb 10 there is a manually operated arm 11 of a two-arm lever, the arm 12 of which provides the locking action for the handle. The locking arm 12 is visible in the cross section of Fig. 2 which runs along the line II-II in Fig. 1.

The two-arm lever 11, 12 is tiltable about an axis 13, which in this exemplary embodiment is a pin, the ends of which are supported in the legs 9. The tilting axis 7 of the handle and the tilting axis 13 of the two-arm lever 11, 12 are thus spaced and parallel to each other, the tilting axis 13 between the tilting axis 7 and the part of the handle or the comb to be operated with the hanc 25 10. The arm 11 can now be pressed with the thumb against the action of a spring device 14 towards the lock case 1, so that a protruding part or hook 15 of the arm 12 is behind a part that is at an angle to the path of movement / of the handle 5 16 slides away and releases the handle 30 y for retracting the bolt 2. The 781 1 3 3 4

Claims (9)

1. Door latch with latch, movably mounted latch retracting handle and hand-operated ratchet mechanism for locking the handle in an end position, characterized in that the ratchet mechanism is a tilting lever, the tilt axis of which is parallel to the tilting axis of the handle extends and, for retracting the latch, a hand-operated arm of the lever is movable in opposite direction to the direction of movement of the handle for releasing the ratchet action. Door lock according to claim 1, characterized in that the tilting axes of the lever of the ratchet mechanism and of the handle run parallel to the direction of movement of the latch bolt. Door lock according to claims 1 and 2, characterized in that the tilting axes of the lever and the handle are spaced apart, Door lock according to claims 1-3, characterized in that the tilting axis of the lever of the ratchet mechanism lies between the tilting axis of the handle and the part of the handle which can be hand-manipulated. _ 5 _ Door lock according to claims 1-4, characterized in that the tilting axis of the lever of the ratchet mechanism is supported in the handle. 6. Door lock according to claims 1-4, characterized in that the manually operated arm of the lever of the ratchet mechanism is surrounded by two arms and a comb of the handle arranged between them. Door lock according to claims 1-6, characterized in that the tilting axis of the ratchet mechanism is a pin supported at its ends in the arms of the handle. 8. Door lock according to claims 1-4, characterized in that the lever of the ratchet mechanism is a two-armed lever, a first arm of which is the manually operable arm and a second arm comprising a part which engages behind a Angled part of the door lock or handle relative to the direction of movement of the handle. Door lock according to 66n of claims 1-8, characterized in that the manually operable part of the lever of the ratchet mechanism is movable against the action of a spring device. 78 1 1 3 3 4