KR20080043203A - Override type mortice door lock - Google Patents

Abstract

An override type Mortice door lock is provided to secure convenient opening of a door by making a latch bolt and a dead bolt to be converted into an unlocked state at the time of operating an inner handle. An override type Mortice door lock comprises a case, a latch bolt(21) and a dead bolt(22). A latch bolt drawing hole and a dead bolt drawing hole are formed on a side part of the case. The latch bolt is coupled to a locking step(23a,24a) of an inner handle lever(23) or an outer handle lever(24) installed so as to be laminated each other, and drawn in and out through the latch bolt drawing hole of the case. The dead bolt is coupled to a locking lever(25), and drawn in and out through the dead bolt drawing hole of the case.

Description

OVERRIDE TYPE MORTICE DOOR LOCK}

1 is a view showing the overall configuration of the override type mortis door lock provided in a preferred embodiment of the present invention,

Figure 2 is a coupling state diagram showing the organic coupling state and the operating principle of the lock module in the override-type mortis door lock provided in a preferred embodiment of the present invention,

3 and 4 show the coupling state of the outer handle lever and the auxiliary plate formed with the inner handle lever and the link end in the override type Mortis door lock provided in a preferred embodiment of the present invention,

5 is an enlarged portion 'A' of FIG. 1, and in detail, illustrates a process of switching the latch of the latch bolt.

** Explanation of symbols for main parts of drawing ***

1. Mortis Door Lock 10. Case

20. Lock Module 21. Latch Bolt

21a. Aft 21b. spring

21c. Bolt body 21c-a. Jam

21d. Latch 21e. shaft

22. Deadbolt 22a. Conveying groove

22b, 22b '. Stopper groove 22c. Link stage

23. Internal handle lever 23a. Hang

23b. Link stage 23b '. Secondary plate

24. External handle lever 24a. Hang

25. Rock lever 25a. shaft

26. Connection lever 26a. shaft

27. Cam levers 27a, 27a '. Interlocking

28. Rock plate 28a. spring

28b. Stopper stage 28c. First

28d. Hang

31. Internal handle shaft 32. External handle shaft

40.Stopper Pin 41.Spring

B, B 'bolt

The present invention relates to a mortise door lock, and more particularly, an override type mortise door lock in which a dead bolt set in a locked state is switched to an unlocked state by manipulation of an inner handle, thereby unifying the opening process of the door in the interior. It is about.

In general, the case constituting the Mortis door lock is drawn in and out by the operation of an external or internal handle, a latch bolt that is restrained / restricted to a latch installed in the door frame, and a key set or an internal lock knob installed. The latch is provided with a dead bolt that is restrained / unbound twice.

However, in the conventional Mortis door lock, as described above, when the dead bolt is restrained by the latch, it is possible to release the restraint by operating the keyset or the lock knob, so even if the user operates the inner handle to open the door, the latch bolt is Unbound, but the deadbolt remains locked.

Therefore, in order to open the door from inside, the user can operate the lock knob to switch the dead bolt to the unlocked state, and then open the door only by operating the inner handle.

However, the opening process of this dual door is very cumbersome, and when the door is opened quickly, including the occurrence of a fire in a building, this type of lock may be a time delay, which is not preferable.

The object of the present invention devised to solve the above problems, the latch bolt and the dead bolt that is constrained / released by the latch by the draw-out and unloaded to be unified to unlock the door when operating the internal handle, quick and convenient door To provide an override-type Mortis door lock that enables the opening of

The above object is achieved by the following configuration provided in the present invention.

The override type mortis door lock according to the present invention,

A case having a latch bolt outlet and a dead bolt outlet at the sides; A latch bolt which is fastened to a latch end of an inner handle lever or an outer handle lever installed to be stacked on each other, and which slides in and out of the latch bolt outlet of the case; And Mortis door lock comprising a dead bolt that is coupled to the lock lever and sliding in and out to the dead bolt outlet of the case;

A link end is provided at each of the inner handle lever and the dead bolt, and a connection lever is axially installed between the link end of the inner handle lever and the link end of the dead bolt;

When the internal handle lever is rotated, the latch bolt is fixed to the locking end and retracted, and at the same time, the connection lever is fixed to the link end of the internal handle lever, and the dead bolt connected through the link end is rotated by the connection lever. It is characterized in that it is configured to retreat.

And, preferably, a pair of stopper grooves are formed spaced apart from one end of the dead bolt in the configuration, the other end of the lock plate is pressed by the elastic means one end side to the one side of the stopper groove to one side A stopper structure of a form in which a stopper end formed therein is inserted to restrain the dead bolt, thereby preventing unnecessary swing of the dead bolt; The restraint state of the dead bolt by the stopper structure is provided with a cam structure for transferring the lock plate against the elastic force of the elastic means by the rotation of the inner handle lever between one end of the lock plate and the inner handle lever, the inner handle By actuating the lever, the stopper end of the lock plate is released from the stopper groove of the dead bolt to be released.

More preferably, the latch bolt is in the form of a latch shaft is installed on the bolt body, the locking jaw is provided on one surface of the bolt body, the stopper pin carried by the spring is opposed to the latching jaw of the latch bolt In general, the bolt body having the shaft axially installed is configured to be physically constrained by the stopper pin through the locking jaw so as not to be separated from the outside, and the operator pulls the stopper pin to change the restraint state of the bolt body when the latch is switched. By releasing the latch and the bolt body to the outside of the case is configured to enable the direction of the latch.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the override type mortis door lock according to the present invention.

1 is a view showing the overall configuration of the override-type Mortis door lock provided in a preferred embodiment of the present invention, Figure 2 is an organic coupling state and operating principle of the lock module in the override-type Mortis door lock provided in a preferred embodiment of the present invention The state of coupling is shown.

In the override type mortis door lock 1 according to the present embodiment, as shown in FIG. 1, the lock module 20 is installed inside the case 10 in which the accommodation space is formed. The latch bolt outlet 11 and the dead bolt outlet 12 are formed in the side part, respectively.

And the lock module 20 to be accommodated in the case 10, the latch bolt is installed in each of the sliding structure so as to advance through the latch bolt outlet 11 and the dead bolt outlet 12 of the case 10. 21 and dead bolt 22; Internal and external handle levers 23 and 24 which draw out the latch bolt 21 artificially; And a lock lever 25 which draws in and out the dead bolts 22 artificially. In this embodiment, the connecting piece is engaged at the rear of the latch bolt body and the dead bolt body to form one latch bolt 21 and a dead bolt 22.

Here, the inner handle lever 23 is engaged with the inner handle shaft 31 entered from the inside, and the outer handle lever 24 superimposed therewith is bound with the outer handle shaft 32 entered from the outside. The action force required for rotation is applied. Therefore, the inner handle lever 23 and the outer handle lever 24 are rotated independently.

In addition, the lock lever 25 is built in the shaft 25a of the inner lock knob (not shown) and the external key set (not shown), and the external force by the operation of the lock knob and the key set is rotated on the shaft 25 a. Received through the dead bolt 22 is to be transferred.

Referring to the drawing showing a preferred embodiment, the rear end 21a of the latch bolt 21 is provided with a spring 21b, the latch bolt 21 is to have a tendency to always advance by this spring. The rear end 21a of the latch bolt is bent so as to be engaged with the engaging ends 23a and 24a of the inner handle lever 23 and the outer handle lever 24.

Accordingly, the latch bolt 21 having the propensity to advance by the spring force of the spring 21b is the rear end 21a bent at the engagement ends 23a and 24a of the inner handle lever 23 and the outer handle lever 24. ), And artificial retreat is made by the operation of the inner and outer handles.

The dead bolt 22 provided at the dead bolt outlet 12 of the case 10 includes a transfer lever provided with a lock lever 25 rotated by a keyset or a lock knob at the bottom of the dead bolt 22. By binding and conveying 22a, it is comprised so that the dead-bolt 22 may be pulled in and out through the dead-bolt discharge port 12. FIG.

In this embodiment, the stopper structure is provided in the mortise door lock 1, and the dead bolt 22 is unnecessarily swinged forward or backward by other external force except the rotation of the inner handle lever 23 or the lock lever 25. It is to be prevented, to ensure a more secure security.

As shown in FIG. 2, the stopper structure has a stopper end 28b formed on the other end side of the lock plate 28 supported to be lowered at all times by a spring 28a provided at one end 28c. The bolt 22 is inserted into a pair of stopper grooves 22b and 22b 'spaced apart from the rear end of the bolt 22 to artificially fix the dead bolt 22 (stopping state).

More specifically, the structure of the lock plate 28, one end 28c is bent and the cam lever 27 is rotated in conjunction with the rotation of the inner handle lever 23, the lock plate ( On the other end side of 28), a locking end 28d, which is fastened to the lock lever 25 and transferred to one side, and a stopper end 28b formed by bending the protruding piece are formed.

Here, the cam lever 27 has a pair of interlocking ends 27a and 27a 'branched to be engaged with the inner handle lever 23 and one end 28c of the lock plate. The shaft 27b is provided.

However, the cam structure for transferring the lock plate 28 against the elastic force of the spring 28a, which is an elastic means, need not be limited to the cam lever of the above-described form, and the inner handle lever 23 itself is branched. Other forms may be possible, such as a stage configured to be bound to one end 28c of the lock plate.

With the above structure, the lock plate 28 which is supported by the spring force of the spring 28a toward the dead bolt 22 and restrains the dead bolt 22 by the binding structure of the stopper end and the stopper groove, One end 28c in which the lock lever 25 installed at the lower side rotates to transfer the locking end 28d, or the cam lever 27 interlocked with the inner handle lever 23 rotates to bend the interlocking end 27a '. ) And lift in the direction of the arrow, the stopper end 28b provided in the lock plate 28 temporarily maintains the detached state from the stopper grooves 22b and 22b 'of the dead bolt 22. Thus, the restraint state of the dead bolt 22 is temporarily released by the rotation of the lock lever 25 or the inner handle lever 23 (unstopping state).

On the other hand, in the present invention, the internal handle lever 23 for advancing and latching the latch bolt 21 and the dead bolt 22 for advancing and retreating by the lock lever 25 are interlocked and rotated by the internal handle lever 23. By allowing the latch bolt 21 and the dead bolt 22 to retreat at the same time, the door opening process by the inner handle is unified.

To this end, in the present embodiment, link ends 22c and 23b are provided at the inner handle lever 23 and the dead bolt 22, respectively, and the link ends 23b and the dead bolt (the lower handle 23) of the inner handle lever 23 are provided. The connection lever 26 built in between the link ends 22c of 22 is provided.

In this configuration, when the inner handle lever 23 is rotated counterclockwise as shown in FIG. 2, the bent tail 21a of the latch bolt 21 is fastened to the locking end 23a in the direction of the arrow. Since the cam lever 27 engages with the inner handle lever 23 and binds the bent end 28c of the lock plate 28 to transfer in the direction of the arrow, the dead bolt 22 stops. Will be unstopped.

At this time, one end of the connection lever 26 is engaged with the link end 23b of the inner handle lever 23 so that the connection lever 26 is rotated in a clockwise direction as shown by an arrow, and the connection lever 26 is rotated by this rotation. The other end of the dead bolt 22 is engaged by the link end 22c of the dead bolt 22 in the direction of the arrow, the dead bolt 22 is retracted.

Thus, the Mortis door lock 1 according to the present embodiment implements an override function in which the latch bolt 21 and the dead bolt 22 in the locked state are retracted at the same time by the rotation of the inner handle lever 23 to be switched to the unlocked state. Will be.

3 and 4 show the coupling state of the outer handle lever and the auxiliary plate formed with the inner handle lever and the link end in the override type mortis door lock provided in a preferred embodiment of the present invention.

Meanwhile, in the present embodiment, as shown in FIGS. 3 to 4, the link end 23b is not integrally formed on the inner handle lever 23, and a separate link end 23b is formed on one side of the inner handle lever 23. The formed auxiliary plate 23b 'is laminated, and the auxiliary plate 23b' on which the inner handle lever 23 and the link end 23b are formed is fixed through the fastening bolt B.

Therefore, when the operator needs to change the installation direction, that is, when changing from the left installation type to the right installation type or the right installation type to the left installation type, the fastening bolt B which fixes the inner handle lever 23 and the auxiliary plate 23b '. After dismantling, when the outer handle lever 24 and the auxiliary plate 23b 'formed with the link end 23b are fastened and fixed, the installation direction of the door lock 1 can be easily changed.

In this way, when the auxiliary plate 23b 'having the link end 23b formed on the outer handle lever 24 is fixed, the latch bolt 21 and the dead bolt 22 are moved by the operation of the outer handle lever 24. Retreat.

Therefore, the operator can selectively select the installation direction by alternatively fixing the auxiliary plate 23b 'on which the link end 23b is formed to the inner handle lever 23 or the outer handle lever 24.

At this time, the operator is required to change the latching direction of the latch 21d of the latch bolt 21, the latch bolt 21 is formed in the form of the shaft 21e on the bolt body 21c as shown in Figs. In this case, the latch 21d may be rotated 180 °. In the case where the latch bolt 21 is fastened to the bolt body 21c through the bolt B 'as shown in FIGS. 2 and 4, the bolt B' After disassembling the latch 21d to dismantle it, reverse the direction and reassemble the bolt body 21c through the bolt B '. Of course, even if the latch bolt 21 itself is installed in the outward direction, the same function can be exhibited.

 5 is an enlarged portion 'A' of FIG. 1, and in detail, sequentially illustrates a switching process of the latch of the latch bolt, and in the present embodiment, as shown in FIGS. 1 and 5, A stopper pin 40 is provided to restrain the bolt body 21c on which the latch 21d is provided with the shaft 21e for stepping out steplessly, so that the latch bolt 21 can be switched more quickly and easily. .

In detail, in the present embodiment, the stopper pin 40 supported by the spring 41 is provided in the case 10, and the latch 21d opposite thereto is caught by the bolt body 21c provided with the shaft 21e. The jaw 21c-a is provided, and the bolt body 21c having the shaft 21e having the latch 21d mounted thereon is physically held by the stopper pin 40 through the catching jaw 21c-a as shown in FIG. 5A. Constrained to prevent the valve from being detached from the outside, and if necessary, that is, when a change of the direction of the latch 21d is required, the operator pulls the stopper pin 40 to release the restraint state of the bolt body 21c as shown in FIG. The latch 21d and the bolt body 21c are drawn out to the outside of the case so as to be able to change the direction of the latch 21d.

After changing the direction of the latch 21d in this way, when the operator pushes the latch bolt 21 into the case 10 as shown in FIG. 5C, the bolt body 21c having the latch 21d extending the shaft 21e is provided. ) Is restrained by the stopper pin 40 to prevent the outer bolt from detaching the latch bolt 21.

Therefore, the mortise type door lock 1 according to the present embodiment can quickly switch the attachment direction of the latch 21d through the operation of the stopper pin 40.

As described above, the Mortis door lock according to the present invention is configured to exert a so-called override function in which the latch bolt and the dead bolt, which are restrained or restrained by the latch by the draw-out and unloading, are unified so as to be united when the inner handle is operated. .

If such an override function is provided, not only the opening of the door is more simple, but also the door can be opened quickly. Especially in the case of urgent opening of the door, such as a fire, a very essential function can be exerted.

In particular, the mortise door lock according to the present invention has the advantage of easily changing the left and right installation form.

Claims (5)

A case having a latch bolt outlet and a dead bolt outlet at the sides; A latch bolt which is fastened to a latch end of an inner handle lever or an outer handle lever installed to be stacked on each other, and which slides in and out of the latch bolt outlet of the case; And Mortis door lock comprising a dead bolt that is coupled to the lock lever and sliding in and out to the dead bolt outlet of the case; A link end is provided at each of the inner handle lever and the dead bolt, and a connection lever is axially installed between the link end of the inner handle lever and the link end of the dead bolt; When the internal handle lever is rotated, the latch bolt is fixed to the locking end and retracted, and at the same time, the connection lever is fixed to the link end of the internal handle lever, and the dead bolt connected through the link end is rotated by the connection lever. Override-type mortis door lock, characterized in that configured to retreat. The method of claim 1, A pair of stopper grooves are formed on one side of the rear end of the dead bolt, and a stopper end formed at the other end of the lock plate for pressing the dead bolt to one side is inserted into the stopper groove so that one end side is supported by an elastic means. A stopper structure is further provided in which the bolt is constrained to suppress unnecessary swing of the dead bolt; The restraint state of the dead bolt by the stopper structure is provided with a cam structure for transferring the lock plate against the elastic force of the elastic means by the rotation of the inner handle lever between one end of the lock plate and the inner handle lever, the inner handle An override mortise door lock, characterized in that configured to be released by detaching the stopper end of the lock plate from the stopper groove of the dead bolt by the operation of the lever. The method of claim 2, The cam structure is an override type mortise door lock, characterized in that the cam lever provided with a pair of interlocking ends that are fastened to the inner handle lever and the lock plate, respectively. The method of claim 2 or 3, One end of the lock plate is formed with a locking end protruding to be positioned on the swing trajectory of the lock lever, so that the dead bolt is retracted by the operation of the lock lever and the release state of the dead bolt is released by the lock plate. Override type mortis door lock, characterized in that. The latch bolt of claim 1, wherein the latch bolt is axially installed on the bolt body, and a latching jaw is provided on one surface of the bolt body, and a stopper pin supported by a spring is opposed to the latching bolt of the latch bolt. Prepared, In general, the bolt body with the latch shaft installed is configured to be physically constrained by the stopper pin through the locking jaw so as not to be separated from the outside, and the operator pulls the stopper pin to release the restraint state of the bolt body by changing the direction of the latch. An override type mortise door lock, comprising: a latch and a bolt body to be pulled out of a case to change a direction of the latch;

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