KR101891785B1 - Mortise - Google Patents

Abstract

The present invention relates to a door lock mortise which is composed of a mortise body, a dead bolt, a sub latch, and a latch bolt to lock or unlock a door, and more particularly, to a door lock mortise capable of preventing a jam phenomenon of a dead bolt by operating with a time difference so that the dead bolt releases a locking means after finishing an unlocking operation while releasing all of the dead bolt, the sub latch, and the latch bolt if a splitter operates by including the locking means to prevent the latch bolt from being arbitrarily inputted to the mortise body by an input operation of the sub latch in a door locking state and an unlocking means to release the locking means to be interlocked with the splitter.

Description

Door lock motors to prevent jamming of dead bolts {MORTISE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a door lock motor which comprises a main body, a dead bolt, a sub latch, and a latch bolt to lock or unlock the door. More particularly, And a lock releasing means for releasing the locking means is interlocked with the splitter so that the dead bolt, the sub latch, and the latch bolt can be unlocked when the splitter is operated, The dead bolt is operated with a time lag so that the locking means can be released after the dead bolt completes the unlocking operation, thereby preventing the dead bolt from being jammed. Thus, when the user intends to open the door with the panic function indoors, The latching of the latch can be performed after the end, so that there is no latching phenomenon, And the like.

Generally, door lock devices are widely used in general households and public buildings. Typically, door locks are used for entrance doors, bank safes, and access control devices to restrict access to specific areas.

In particular, a digital door lock device capable of locking and unlocking a door by widely moving a latch by operating a motor or a solenoid after authenticating a user through a method of inputting a password or fingerprint recognition has been widely used.

Such conventional technology is disclosed in Registration Utility Model No. 20-0428164 entitled " Doorlock Motis with built-in driving motor "

In the above prior art, a gear and other mechanical parts interlocked with a drive motor and a drive motor are provided inside the mortis body so that the dead bolt inside the mortis is automatically operated by the drive motor to perform the forward and backward operations of the dead bolt It is possible to use a mechanical door lock device and an electronic (digital) door lock simultaneously or in an electronic (digital) manner by allowing a mechanical operation driven by the operation of a key (key) And it offers door lock motis that can be changed easily.

Also, according to the conventional art, there is a registration utility model No. 20-0378846 " MORTIS of the door lock &

The above-mentioned prior art includes a housing built in a door; A dead bolt assembly that moves between a release position and a lock position in the housing and that is locked to the door frame by being protruded from the housing at a locked position; A first spring elastically supporting the deadbolt assembly in a locking position direction; The dead bolt assembly being rotatably disposed between a first position in a forward position in a neutral position and a second position in a reverse position in a neutral position, and is configured to rotate from a neutral position to a first position, A handle shaft having a push lever for pressing; A locking lever rotatably mounted between the locking position and the releasing position in the housing, the locking lever locking the deadbolt assembly in the unlocked position and releasing the deadbolt assembly in the unlocked position; A second spring for elastically pressing the locking lever in the locking position direction; An automatic locking means for automatically locking the door by allowing the dead bolt assembly to move from the unlocked position to the locked position as the door is closed; And door locking means for manually locking the door by allowing the deadbolt assembly to move from the unlocked position to the locked position by rotating the handle shaft from the neutral position to the second position.

Another conventional technique is the Registration Practical Utility Model No. 20-0483631 entitled " Latch Pivoting Door Lock Mortise "

The conventional art has a latch bolt that protrudes or is pulled into the case to lock or unlock the door. A latch bolt shaft having a spring coupled to the periphery thereof and having an end connected to one side of the latch bolt by a hinge structure so that the latch bolt is rotatable to draw the latch bolt into the case; A handle block for placing the latch bolt in a state in which the latch bolt can be drawn into the case; A plate for fixing the latch bolt so as not to be pulled by an external force; A handle b for releasing the latch bolt by rotating the plate with a plate engaging step b formed on one side thereof; And a handle c for releasing the latch bolt by rotating the plate with a plate engaging jaw c formed on one side thereof.

Recently, there has been a demand for a panic function in which a person who is mentally panic in an emergency can easily escape from the room and minimize the damage of the person. That is, when a fire occurs or an earthquake occurs on the indoor side of the door, the person on the indoor side falls into a mental panic state to rotate the only simple operation, that is, the indoor side handle only. There is a need to unlock the door lock.

Such a conventional technique is disclosed in Registration Practical Utility Model No. 20-0484883 entitled " Panic Structure of Door Lock Motice Having Multiple Clasps "

The above-described prior art includes a Mortise body; At least one dead bolt and an inner locking bolt that are moved in a horizontal direction in the mothis main body to establish a locked state and an unlocked state; An operating lever for moving the dead bolt in a horizontal direction; And a lever connected to one end of the operation lever by a connection link and moving the inner locking bolt in a horizontal direction.

However, these conventional techniques simply hold the door lock state by the dead bolt or the latch. In particular, the latch is freely rotated and drawn inward when the door is opened or closed. When the dead bolt is pulled in, So that security can be weakened.

Moreover, if the latch bolt is unclamped before the dead bolt is completely unscrewed, there is a problem that the dead bolt is jammed due to external force or friction, thereby causing durability deterioration or failure.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

The latching means is operated to prevent the latch bolt from being inserted when the sub latch is drawn into the inside of the body of the Mothis in the door locked state, And when the split bolt is unlocked by operating the splitter, the unlocking of the dead bolt and the time lag are made so as not to allow the latch bolt to be pulled in before the dead bolt is disassembled, thereby preventing the jamming phenomenon of the dead bolt. The purpose.

Accordingly, it is an object of the present invention to provide a Doorlock Mortice which can be used smoothly without a latching phenomenon by allowing the user to open and close the door by using the panic function indoors, and to release the latch after the end of the deadbolt is finished .

In addition, the dead bolt prevents the occurrence of jamming due to friction and external force generated during the unlocking process, and the dead bolt, sub latch, and latch bolt can be stably released by operation of the splitter, And to provide a door lock motris which prevents the door lock.

In order to achieve the above object, a door lock motor for preventing the jamming of the dead bolt according to the present invention

Mortise body;

A dead bolt which is moved horizontally in the main body to perform a locking and unlocking operation;

A latch bolt located at a lower portion of the dead bolt and capable of protruding and retracting outside the mortise main body;

A splitter including a handle shaft coupled with a handle provided inside the door, the splitter being rotatably provided to operate the dead bolt;

Locking means for moving the latch bolt upward and downward in the main body to prevent the latch bolt from being drawn into the main body; And

Locking means for lifting the locking means by rotation of the splitter to allow the latch bolt to be drawn in;

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After the splitter operates the dead bolt in the unlocked state, the lock releasing means is operated to allow the latch bolt to enter the mothis main body.

As described above, the door lock motor to prevent the jam phenomenon of the dead bolt according to the present invention

A dead bolt, a sub latch, and a latch bolt which are drawn out from the mottice body for the locked state and the unlocked state, and an operating means and a splitter for operating the latched bolt, the sub latch and the latch bolt, A panic function is provided so that the user can perform the operation,

Particularly, when the panic function is operated, the latch bolt can be inserted into the mothis main body after the dead bolt is unlocked, thereby preventing the dead bolt from jamming, thereby improving the durability and stably opening the door .

That is, when the user intends to open the door by using the panic function indoors, there is no latching phenomenon and the panic operation can be smoothly used as the latch is released after the end of the dead bolt.

Further, the locking releasing means is constituted by the first interlocking member and the second interlocking member so as to be able to cope with both the bi-directional rotation of the splitter. By making the time difference by the spacing portion formed on the splitter, The bolt can be removed.

Figure 1 is a schematic diagram of a door lock according to the present invention.
Fig. 2 is an enlarged view of a sub-latch and a latch bolt of a door lock motor according to the present invention
FIGS. 3 and 4 are diagrams of operation of the sub latch and the latch bolt of the door lock motor according to the present invention
Fig. 5 is an enlarged view of the locking release means of the door lock motissue according to the present invention
Figures 6a-6c illustrate the operation of the door lock motors according to the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Prior to describing the present invention, it is to be noted that, for the sake of convenience, when an unambiguous approximate direction reference is specified with reference to FIG. 1, the direction in which the dead bolt 20 is pulled out is referred to as front, The direction in which the operating direction is directed downward is set as it is in the vertical direction, the left and right direction as it is, and directions are specified according to this standard unless otherwise specified in the detailed description and claims of the invention relating to other drawings.

Fig. 1 shows the overall configuration of a door lock motor according to the present invention, Figs. 2 to 4 show the constitution of a sub latch and a latch bolt, and Fig. 5 shows an enlarged view of each constitution.

6A shows the opened state of the door, FIG. 6B shows a step of unlocking the dead bolt by rotating the splitter, that is, unlocking the dead bolt to lock the door, FIG. 6C shows a state where the door is locked The following constitution will be described in more detail with reference to the respective drawings.

The present invention relates to a door lock motor (M)

And includes a main body 10, a dead bolt 20, a sub latch 30, a latch bolt 40, an actuating means 50 and a locking means 70.

The mothis main body 10 is installed in the door and includes a latch portion 21 of a dead bolt 20 and a sub-portion 21 of a dead bolt 20 in a side wall portion 11 exposed to an end portion of a door. The first to third take-out holes 113 in which the first head portion 31 of the latch 30 and the second head portion 41 of the latch bolt 40 respectively protrude and retract are provided.

However, in order to enhance the locking function of the dead bolt 20, the present invention is characterized in that the dead bolt 20 is provided with three latch portions 21, And the second outflow hole 112 and the third outflow hole 113 in which the sub latch 30 and the latch bolt 40 protrude and retract are respectively provided for only one of them.

The latches of the dead bolt 20 and the latch bolt 40 are provided with locking grooves in the door frame striking corresponding to the side wall part 11, The sub latch 30 has a portion corresponding to the first head portion 31 and has a surface shape without a hole. When the door is closed, the first head portion 31 of the sub latch 30, Is configured to be pulled into the mothis body (10).

In addition, a guide shaft 13 for guiding the forward and backward movement of the dead bolt 20 is provided in the inside of the mortise main body 10, and separate fixing shafts for rotating or fixing the respective components to be described later are provided Which is a known technique, and a detailed description thereof will be omitted.

The dead bolt 20 is used for locking and unlocking the door, and includes two or more latch portions 21 (three latch portions 21 are shown in the present invention) And a sliding hole 23 in which the guide shaft 13 is slidably engaged is provided at the intermediate portion or the rear end portion or both of the sliding portion 23 and the sliding portion 23. So that a stable linear motion can be performed.

The dead bolt 20 is manually operated (manually operated by a panic-function indoor side handle or a coworker on the outdoor side) or the operation of the motor 512 (by pressing the open button on the indoor side, The latch portion 21 is pulled out of the first draw-out hole 111 to be pulled out from the outer side of the mothis main body 10 through the operation of the securing body 10, To enter or to enter.

Subsequently, the sub latch 30 and the latch bolt 40 come into contact with the strike of the door frame when the door is opened and closed, and are pulled out from the mothis main body 10 so that the respective head portions come and go out of the mothis main body 10.

More specifically, the sub latch 30 includes a first head portion 31 which can be projected out of the mothis body 10 through the second outflow hole 112 and a second head portion 31 connected to the first head portion 31, A first body portion 33 which is resiliently supported by the first head portion 31 and is moved back and forth in the body of the mothis 10 and a second body portion 33 which is hinged to the first head portion 31 and the first body portion 33, And a first hinge pin (35) for allowing the first hinge pin (31) to pivot left and right.

The first elastic body 37 is provided at the rear end of the first body portion 33 of the sub latch 30 and the first elastic body 37 is provided at the end of the first elastic body 37, The sub latch 30 receives the forward elastic force by the elastic force of the spring 37.

In addition, the sub-latch 30 is shifted in the left-right direction by the contact of the strike, so that the pull-out operation is performed.

The first head 31 includes a first sloped portion 311 and a second sloped portion 312 that are exposed to the outside of the mothis body 10 and are symmetrical with respect to each other while being inclined downward forward. The direction of the first slanting face 311 and the second slanting face 312 are switched while the first head 31 rotates about the first hinge pin 35 in the left-right direction.

The first head portion 31 is provided on the upper surface or the lower surface or both of the first head portion 31 and the first hinge pin 31 so that the first head portion 31 can contact the side wall portion 11 of the mothis main body 10 when the first head portion 31 is drawn out. 35, and a semicircular first support protrusion 314 protruding along the rear periphery of the semi-

The first head portion 31 is pivotally moved about the first head portion 31 with the end portion of the first support protrusion 314 contacting the side wall portion 11 of the motice body 10 as a fulcrum when the first head portion 31 is retracted, .

That is, when the first head portion 31 is brought into contact with the strike, the first head portion 31 is rotated in the opposite direction to the door frame, The first head portion 31 is pushed into the mothis body 10 due to the inclination of each slope portion being contacted, and the sub latch 30 is pulled in.

At this time, any one of the opposite end portions of the first support protrusion 314 (the end portion located in the rotating direction of the first head portion 31) contacting with the side wall portion 11 forms a supporting point like the attraction lever The first latching protrusion 314 allows the sub latch 30 to be pulled into the mothis main body 10 more quickly against the impact or shock of the impact applied by the first head 31, It is possible to prevent breakage or the like.

The first support protrusion 314 is configured such that an end of the first support protrusion 314 contacts the side wall portion 11 of the motice body 10 when the first head portion 31 is drawn out, 1 head portion 31 is returned to the home position before the rotation.

That is, when the door is completely removed from the door frame and no external force is applied to the first head portion 31, the sub latch 30 is advanced by the first elastic body 37 to be drawn out. Since the first head portion 31 is drawn out in a state of being pivoted in either one of the left and right directions, any one of the opposite end portions of the first support protrusion 314 contacts the side wall portion 11 first, The sub latch 30 is pulled out while the first head part 31 is pivoted to the neutral position before the first head part 31 is rotated to the home position, The second head portion 41 of the latch bolt 40 is brought into contact with the strike before the first head portion 31 when the door is closed later in this state as well as limiting the drawing distance of the head portion 31 So that the entry of the latch bolt 40 is started first from the sub latch 30 The.

Next, the latch bolt 40 includes a second head portion 41 which is capable of protruding outside the mothis body 10 and being elastically supported in a pulling direction.

Specifically, the latch bolt 40 includes a second head portion 41 which can be retracted into and retracted into the third take-out hole 113, and a second head portion 41 connected to the second head portion 41 so as to be elastically supported in the pull- A second body portion 43 that moves forward and backward within the first head portion 41 and a second head portion 41 that hinges the second head portion 41 and the second body portion 43, And a hinge pin 45. At the rear end of the second body portion 43, a separate locking means 70 is provided, which will be described in more detail below.

The latch bolt 40 is elastically pressed in the pulling direction by the second elastic body 47 provided in the mothis body 10 and is brought into contact with the second head portion 41 ) In the left and right direction is performed to perform the drawing-out operation.

The second head portion 41 of the latch bolt 40 may be formed in the same shape as the first head portion 31 of the sub latch 30, 43 and a pair of powder pieces arranged vertically in a state of being supported by the front end of the first and second hinge pins 45 and 45 in such a manner that the inclined surfaces facing each other with respect to the second hinge pin 45 are staggered left and right, The second head portion 41 is pulled in and out from the front and rear.

That is, in the state where the second hinge pin 45 is shared while the rear surfaces of the pair of powder constituting the second head part 41 are all supported by the second body part 43, So that the door can not be opened and the latch bolt 40 can not be pivoted in the left and right directions, Only one of the powders is rotated and the second head 41 is pulled in, that is, the latch bolt 40 is moved backward by the pulling pressure.

When the outer surface of the first powder 411 contacts the strike, for example, when the door is opened, the second body part 43 is pushed rearward so that the first powder 411 rotates at the same angle as the second powder 412 The second head portion 41 is pressed into the inside of the mothis main body 10 in such a manner that both the outer surface and the inner surface of the first and second powder 412 are in contact with the strike and the latch bolt 40 is drawn in.

Each powder of the second head portion 41 is provided on the upper and lower surfaces of each powder so as to be able to contact the side wall portion 11 of the motice body 10 when the second head portion 41 is drawn out, And a second support protrusion 414 protruding along the rear periphery of the second hinge pin 45,

When the second head portion 41 is pulled, the rotating powder is rotated with the end portion of the second support projection 414 contacting the side wall portion 11 of the mothis body 10 as a supporting point,

When the second head portion 41 is pulled out, the end of the second support projection 414 of the rotated powder contacts the side wall portion 11 of the motice body 10, .

The second support protrusions 414 correspond to the first support protrusions 314 of the sub latch 30 and have the same functions as those of the first support protrusions 314, The first head portion 31 of the latch bolt 40 returns to the neutral position by the first support protrusion 314 while the second head portion 41 of the latch bolt 40 returns to the neutral position by the first support protrusion 314, There is a difference in that each powder returns to the position where the powder is staggered by the protrusion 414.

The first support protrusions 314 are formed such that both ends of the first support protrusions 314 are in contact with the side wall portion 11 with respect to the neutral position of the first head portion 31, Both end portions are formed so as to contact the side wall portion 11 with reference to the rotated position.

At both ends of the second support protrusion 414, there is provided a support end 415 that is bent outwardly so as to be identical to the plane direction of the side wall portion 11, so that the rotation of each powder can be restored and stable support can be achieved. The supporting end 415 may be equally applied to the first supporting protrusion 314.

The operation means 50 of the dead bolt 20 for drawing out the dead bolt 20 will be described.

The actuating means 50 includes an actuating member 51 for actuating the dead bolt 20. When the actuating member 51 rotates clockwise with reference to Figure 1, 20 into the side wall portion 11. [0035]

That is, a push portion 25 formed at the rear end of the dead bolt 20 can be pressed to one side of the operation member 51. When the operation member 51 rotates clockwise, 51 push the push portion 25 to retract the push portion 25 to pull the dead bolt 20.

At this time, the operation of the operation member 51 can be operated by a rotation (using a panic function) of a splitter 60 (described later), which is used in a panic function, Recognition, password, etc., to drive the motor 512 to unlock the door.

To this end, the operation member 51 is formed with a handle engagement hole 511 to which a manual key or a handle can be coupled, which is provided for manually rotating the operation member 51, The first gear 514 and the first gear 514 provided in the motor 512 and the first gear 514 are coupled to the operation member 51 The second gear 515 is operated to rotate the operation member 51.

The actuating member 51 is provided with a locking protrusion 517 and the second gear 515 is provided with a driving hole 515a through which the locking protrusion 517 is inserted, 515 are rotated, the end of the driving hole 515a pushes the locking projection 517 to rotate, thereby rotating the actuating member 51.

The dead bolt 20 is further provided with a torsion spring 15 in order to impart a restoring force to the dead bolt 20 drawn into the mortise main body 10, The operating member 51 is returned to its original position.

Next, the panic function of the indoor side handle, which is a feature of the present invention, will be described in more detail.

The panic function is a function for allowing the user to easily open the door by interlocking the dead bolt (20) and the latch bolt (40) held for the locked state when the handle is rotated in the room in an emergency, The present invention is characterized in that the door can be opened regardless of the direction of rotation of the interior handle, so that the panic function can be performed more easily.

The present invention further includes a splitter 60. The splitter 60 includes a handle shaft 61 and a panic rotary 63 and a latch rotary 65 provided on the handle shaft 61 .

First, the splitter 60 is connected to an inner handle, and is provided with a panic rotary 63 and a latch rotary 65 for interpolating the splitter 60,

When the splitter 60 rotates, the pressing protrusion 631 rotates together to rotate the operating member 51. The pressing protrusion 631 protrudes to one side of the panic rotary 63, .

More specifically, to operate the operating member 51 by rotating the splitter 60, the operating means 50 further includes a first interlocking gear 53 and a second interlocking gear 54 .

The first interlocking gear 53 and the second interlocking gear 54 are located on the upper portion of the splitter 60 and are operable to engage with each other. The first interlocking pawl 531 and the second interlocking pawl 541 are provided below the two interlocking gears 54 so that the pressing protrusion 631 can push the first pawl 531 or the second pawl 541 .

That is, the first pawl 531 and the second pawl 541 are provided so that the pressing protrusion 631 can be positioned therebetween.

The first interlocking gear 53 is formed at its end with a protruding bar 533 for rotating the actuating member 51. When the first interlocking gear 53 rotates clockwise, And the bar 533 pushes the lower left end of the body of the operation member 51 to rotate the operation member 51 clockwise to draw the dead bolt 20. [

That is, in order to draw the dead bolt 20, the first interlocking gear 53 is always rotated in the clockwise direction. In the present invention, the first interlocking gear 53 and the second interlocking gear 54 are engaged with each other The first interlocking gear 53 can always be rotated in the clockwise direction regardless of the rotating direction of the splitter 60. [

More precisely, when the splitter 60 is rotated in the counterclockwise direction, the pressing protrusion 631 pushes the first latch 531 in the clockwise direction, so that the first interlocking gear 53 rotates clockwise ,

When the splitter 60 is pushed clockwise, the pressing protrusion 631 rotates the second pawl 541 counterclockwise. At this time, the first interlocking gear 54, which is engaged with the second interlocking gear 54, (53) is naturally clockwise rotated by the engagement structure.

A first elastic member 56 is connected to the first interlocking gear 53 and the second interlocking gear 54 to apply a restoring force to the first interlocking gear 53 and the second interlocking gear 54 .

As a result, when the user opens and closes the door, the door can be opened and closed only by turning the splitter 60 regardless of the direction, thereby improving the ease of use.

Further, the present invention is characterized in that the door further includes a locking means (70) for preventing the latch bolt (40) from being pulled in when the sub latch (30) is retracted.

The locking means 70 is configured to interlock the first body portion 33 of the sub latch 30 and the second body portion 43 of the latch bolt 40 with each other, And a locking body 71 including a through hole 711 through which the first body part 33 passes and an inlet 713 through which the second body part 43 is inserted .

More specifically, the first body portion 33 is provided with an inclined forming portion 331 which descends toward the front end, and a through hole 711 through which the inclined forming portion 331 passes is formed in the lock body .

When the sub latch 30 is retracted, the first body portion 33 is moved backward. At this time, the first body portion 33 is inserted into the through hole 711 provided in the locking body 71, As shown in Fig.

As the locking body 71 is lowered, the latch bolt 40 is restricted from being pulled in. As a result, the locking body 71 is lowered It is more preferable to provide a third elastic body 73 for applying an elastic force to the first elastic body.

As a result, when the door is closed, the sub latch 30 is pulled into the main body 10. At this time, the inclined forming portion 331 is positioned at the rear end of the through hole 711, The locking body 71 is lowered to restrict the entry of the latch bolt 40,

When the door is opened, the sub latch 30 advances. When the door is opened, the inclined forming portion 331 of the first body portion 33 is moved to the front end of the through hole 711, The upper surface of the through hole 711 rises along the inclined forming portion 331, and as a result, the locking body 71 is raised.

That is, the locking bolt (40) is prevented from being pulled by the locking body (71), so that the latch bolt (40) can be inserted into the inside of the mortise body (10).

In addition, as for the means for preventing the locking bolt (40) from being pulled by the locking body (71)

An inlet 713 through which the second body portion 43 of the latch bolt can be inserted is formed at the lower end of the locking body 71. [

When the locking body 71 is lowered, the upper end of the inlet port 713 is brought into close contact with the upper surface of the second body part 43, At this time, the portion of the locking step 431 is prevented from being inserted into the inlet 713, thereby preventing the latch bolt 40 from being inserted.

When the locking body 71 is raised, the upper surface of the inlet 713 is separated from the second body, and the locking step 431 is inserted into the inlet 713 according to the difference in the distanced distance. So that the latch bolt 40 can be retracted.

In addition, if the latch bolt 40 is pulled in before the dead bolt 20 is retracted, there is a risk that the dead bolt 20 will be undesirably jammed due to unreasonable opening of the door.

Therefore, a slight time difference must be applied to prevent the latch bolt 40 from being drawn in before the dead bolt 20 is completely retracted, , The present invention attempts to solve this problem by means of the unlocking means (80).

The locking releasing means 80 is for lifting the lowered locking body 71 to allow the sub latch 30 and the latch bolt 40 to be pulled in. This operation is performed by the operation of the splitter 60 As a result,

To this end, the unlocking means 80 comprises a first interlocking member 81 and a second interlocking member 83 which can be interlocked with the movement of the latch rotary 65 of the splitter 60, And the second interlocking member 81 and the second interlocking member 83 can be rotated by being engaged with each other through gears.

A first engaging portion 811 and a second engaging portion 831 are formed on one side of the first interlocking member 81 and one side of the second interlocking member 83. The first engaging portion 811 And the latching bar 651 of the latch rotary 65 can be positioned between the first latching part 831 and the second latching part 831. [

A rising guide portion 813 is formed on the other side of the first interlocking member 81 and the rising guide portion 813 is inserted into the through hole 715 provided in the locking body 71.

Therefore, when the first interlocking member 81 rotates in the clockwise direction, the lifting guide portion 813 pushes the upper surface of the through hole 715 upward, thereby lifting the locking body 71, 30 and the latch bolt 40 are allowed to move backward.

In the present invention, the splitter 60 is rotatable in both directions. To this end, the lock releasing means 80 also has a structure in which the first interlocking member 81 and the second interlocking member 83 are engaged with each other in a gear- .

That is, the present invention aims at rotating the first interlocking member 81 in the clockwise direction. When the splitter 60 rotates in the counterclockwise direction, the rotation of the latch rotary 65 of the splitter 60 The latching bar 651 pushes the first latching part 811 of the first interlocking member 81 so that the first interlocking member 81 can be moved clockwise,

When the splitter 60 rotates clockwise, the latching bar 651 pushes the second latching portion 831 to rotate the second interlocking member 83 in the counterclockwise direction, and the first interlocking member 83, (81) is rotated in the clockwise direction, the same effect can be obtained.

In order to prevent the dead bolt 20 from being jammed, it is necessary to provide a time difference. To this end, the latch rotary 65 is provided with a bar-shaped latching bar 651, The bar 651 is formed so as to be able to push the intermediate portion of the first engaging portion 811 or the second engaging portion 831 rather than the end portion thereof and the distance between the engaging bar 651 and the splitter 60 653 of the first latching portion 811 or the second latching portion 831 can be inserted.

For this structure, the splitter 60 is provided with a pair of latch rotaries 65, and constitutes a bar-shaped latching bar 651 for connecting the ends of the projecting portions projected to one side of the latch rotary 65 , And the panic rotary 63 is provided between the pair of latch rotaries 65. As shown in FIG.

That is, the latching bar 651 pushes the intermediate portion of the first latching portion 811 (the first latching portion 811 is described as an example and the second latching portion 831 is also the same) 651 is in contact with the first latching portion 811 is delayed from the time when the splitter 60 pushes the first or second interlocking gear 54 so that the latching start time of the dead bolt 20 71 of the dead bolt 20 is delayed so as to prevent the occurrence of jamming that may occur in the dead bolt 20.

The first interlocking member 81 and the second interlocking member 83 may be further provided with a second elastic member 85 for restoring the first interlocking member 81 and the second interlocking member 83 in place to improve ease of use.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention. Substitutions should be construed as falling within the scope of protection of the present invention.

M: Doorlock Mortice 10: Body
20: Dead bolt 30: Sub latch
40: latch bolt 50: operating means
70: locking means 60: splitter
80: Unlocking means

Claims (4)

A mott body 10;
A dead bolt (20) moving in the horizontal direction in the mothis body (10) and performing locking and unlocking operations;
A latch bolt (40) located below the dead bolt (20) and provided to be able to protrude out of the mortise main body (10);
A splitter (60) including a handle shaft coupled with a handle provided inside the door, the splitter being rotatably provided to operate the dead bolt;
Locking means (70) arranged to move up and down in the inside of the main body (10) to prevent the latch bolt (40) from being drawn into the main body (10); And
Locking means (80) for lifting the locking means (70) by rotation of the splitter (60) and allowing the latch bolt (40) to be pulled out;
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The lock releasing means 80 operates to allow the latch bolt 40 to be drawn into the mortise main body 10 after the splitter 60 operates the dead bolt 20 in the unlocked state,

The unlocking means (80)
A second interlocking member 83 provided to engage with the first interlocking member 81 and provided with a second interlocking member 831 and a second interlocking member 83 having a first interlocking member 811, And a lifting guide portion 813 which extends to the front end of the first interlocking member 81 and is inserted into the through hole 715 of the locking body 71 provided in the locking means 70,
The latching bar 651 of the latch rotary 65 provided in the splitter is positioned between the first latching portion 811 and the second latching portion 831,
The first interlocking member 81 rotates so that the lifting inducing portion 813 moves the locking body 71 in the direction of rotation of the first interlocking member 81. As the first interlocking member 81 rotates, And,
The latching bar 651 of the splitter 60 is provided with a spacing portion 653,
When the splitter 60 rotates to unlock the deadbolt, the end of the first latching portion 811 or the second latching portion 831 is drawn into the spacing portion 653, Is operated to raise the locking body after the unlocking operation of the dead bolt as the first locking part (811) or the second locking part (831) is pushed in the middle of the first locking part (811) or the second locking part (831). The method according to claim 1,
Further comprising a second elastic member (85) for applying an elastic force to restore the first interlocking member (81) and the second interlocking member (83) in place. 3. The method of claim 2,
In the mottic body 10,
A first head portion 31 that is capable of protruding and retracting outside the mott body 10 and a second head portion 31 connected to the first head portion 31 so as to be elastically supported in a pull- A first hinge pin 35 for hinging the first head part 31 and the first body part 33 to each other to allow the first head part 31 to rotate, (30);
Wherein the door lock mechanism is further provided with door locks. The method according to claim 2 or 3,
The first interlocking member 81 and the second interlocking member 83 are provided with
Wherein the first interlocking member (81) and the second interlocking member (83) are rotatably engaged with each other.

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