KR20080092230A - Door lock - Google Patents

Abstract

A door lock is provided to conveniently open a door by projecting a dead bolt to a case according to the movement of a reciprocating member or inserting the dead bolt into the case. A door lock comprises a case(12), a reciprocating member(24), a dead bolt(18), a key device(32), a reciprocating member operating device(42), a reciprocating bracket, a latch bolt(22), a stopper(50), and a releasing unit. The case is embedded in a door having an inner handle and an outer handle. The reciprocating member having an engaging edge on one side is elastically supported by the outside of the case. The dead bolt fixed on one end of the reciprocating member is projected from or inserted into the case according to the movement of the reciprocating member. The key device moves the reciprocating member by rotating a key in a key hole. The reciprocating member operating device moves the reciprocating member according to the rotation of the handle. The reciprocating bracket is elastically supported to the outside of the case while linearly moved along the longitudinal direction when the inner and outer handles rotate. The latch bolt is projected from or inserted into the case according to the operation of the reciprocating bracket. The stopper temporally fixes the dead bolt inside the case with the engaging edge when the dead bolt moves into the case. The releasing unit separates the stopper from the engaging edge by closing the door.

Description

Door lock

The present invention relates to a door lock.

For example, various locking devices for locking the doors are installed in the entrance doors of the entrance or office of the apartment. There are many different types of locks, and especially when more secure and complete security is required, digital door locks are added in addition to existing mechanical locks.

The digital door lock is a lock device that uses passwords or fingerprints or electronic keys instead of the existing mechanical keys, and it is not necessary to carry the keys, and there is no risk of losing the keys. And make life easier.

On the other hand, the conventional digital door lock, a case for providing an internal space, a motor installed inside the case and operated by an electric signal supplied from a battery to generate a torque, and to reduce the rotational speed of the motor It includes a reduction gear, a dead bolt for reciprocating the inside and the outside of the case in conjunction with the operation of the motor, a latch bolt and a sensor bolt for reciprocating when the door handle is rotated, and various link mechanisms.

However, since the conventional digital door lock has to use a reduction gear having a complicated structure for transmitting power of a motor, it is very complicated and in particular, the probability of failure due to the reduction gear is high. In addition, since the power must pass through the reduction gear, the response is not as fast. In addition, because the driving load is large, the power consumption is large, the battery life is short.

In addition, in the case of a digital door lock equipped with a mechanical key device, turn the key device with the key to pull the dead bolt into the case, and when the key is released, the dead bolt will fall out of the case and return to the original position. It is a hassle to hold the key with your hand and turn the door handle with your other hand.

The present invention has been created to solve the above problems, since it is not necessary to use the reduction gear, the load required for the motor is small, and there are no various troubles resulting from the existing reduction gear, and the operation speed is very fast and the overall size can be reduced. In addition, the battery life is long due to low power consumption. Furthermore, when the mechanical key is used, the dead bolt is kept open by the rotation of the mechanical key. The purpose is to provide a convenient door lock.

The door lock of the present invention for achieving the above object is provided to be opened and closed on the door frame and is built in the door having an interior handle and an outdoor handle; A reciprocating member which is installed in the case so as to be movable in position and has a locking jaw formed at one side thereof and is elastically supported to the outside of the case; A dead bolt fixed to one end of the reciprocating member to protrude out of the case or to enter the case according to the position movement of the reciprocating member; A key device installed inside the case and having a key hole open to the outside of the case to rotate by inserting and rotating a key in the key hole to move the position of the reciprocating member; A reciprocating member operating device provided at the side of the key device and linked to the outdoor handle and the indoor handle to move the reciprocating member in association with the rotation of the handle; A reciprocating bracket connected to the reciprocating member operating device and linearly moving in the longitudinal direction when the inner and outer handles are rotated and elastically supported outside the case; A latch bolt fixed to one end of the reciprocating bracket and protruding out of the case or entering the case according to the operation of the reciprocating bracket; A stopper for temporarily fixing the dead bolt to the inside of the case by hanging the locking jaw when the dead bolt is moved into the case; Located on the side of the stopper and characterized in that it comprises a release means for removing the stopper from the locking jaw as the door is closed.

The release means; A sensor bolt positioned on the side of the stopper and moved to the inside of the case by being pressed by the door frame when the door is closed, and moving elastically in the outside of the case by a spring when the door is opened; It is preferable that the sensor bolt is installed to be movable in position, and includes a pin that moves to the stopper side by the reciprocating bracket to separate the stopper from the locking step when the reciprocating bracket moves.

The stopper; A member extending from side to side with the pivot shaft at the center thereof, and one end thereof is provided with a support jaw inserted into the locking jaw to temporarily fix the dead bolt, and pushed by the pin at the opposite end with respect to the pivot shaft. A stopper member having a pressing portion for separating the support jaw from the locking jaw; It is preferable to include elastic means for elastically supporting the support jaw of the stopper member toward the locking jaw side.

The key device is; And a cylindrical body portion in which the key hole is located, and a support arm provided on an outer circumferential surface of the body portion, and pivoting the body portion as a rotation axis when the body portion rotates, and on the other end of the reciprocating member, the support arm rotates. It is preferable that the support surface is positioned on the path and is pushed by the support arm when the body rotates, and moves in the direction of pulling the dead bolt into the case. .

The reciprocating member operating device; A housing plate connected to the interior handle and rotating in operation of the interior handle, the housing plate having a pushing portion extending toward the support arm to press the support arm toward the support surface; It is connected to the outdoor handle to rotate when the outdoor handle is operated, having the same center of rotation axis as the housing plate is linked to the reciprocating bracket, and when operating the outdoor shaft handle is rotated in the fixed state of the housing plate reciprocating bracket A rotating disk for moving the latch bolt through the case; It is preferable to include a connecting means installed between the housing plate and the rotating disk and, if necessary, fixing the rotating disk to the housing plate so that the housing plate is rotated when the outdoor handle is operated.

The connecting means; A hook formed on one side of the rotating disk, the rotating bracket is rotatably installed on the housing plate and is fixed to the hook by the hook to secure the rotating disk and the housing plate, and the rotating bracket driving unit rotates the rotating bracket. It is preferable to include.

The rotating bracket driving unit; A motor operated by an electric signal provided from the outside and provided with a worm gear on the drive shaft, and installed on the side of the motor so as to be rotatable, and a part of the rotating cam rotating the rotating bracket by pressing the rotating bracket according to the rotation; And a driven member extending to the worm gear side while being fixed to the rotating cam to be engaged with the gear of the worm gear and driven by the rotation of the worm gear to rotate the rotating cam so that the rotating cam rotates the rotating bracket. desirable.

The outer peripheral surface of the body portion is further provided with a rotating arm extending to the outside of the body portion, the rotating disk, by pressing the rotating arm to rotate the body portion in the opposite direction to separate the support arm temporarily fixed to the support surface from the support surface It is preferable that a protrusion is formed.

Preferably, the driven member is a linear member made of spring steel.

Preferably, the driven member is bent near a portion in contact with the majestic gear.

Since the door lock of the present invention does not need to use a reduction gear, the load required for the motor is small, as well as various failures resulting from the existing reduction gear, the operation speed is very fast, the overall size can be reduced, and the power consumption is also small. The life of the battery is long, and when the mechanical key is used, the dead bolt is kept open by the rotation of the mechanical key, so it is not necessary to hold the key and the door handle with both hands at the same time to open the door conveniently.

Hereinafter, one embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are views for explaining the internal configuration of the door lock according to an embodiment of the present invention, Figure 2 is a view removing the upper housing plate of FIG.

3 is a perspective view of the reciprocating member shown in FIG. 1, and FIG. 4 is a plan view showing the internal configuration of the door lock shown in FIG.

Referring to the drawings, the door lock 10 according to the present embodiment, provides a rectangular inner space 14, the case 12 is embedded in the door, and covers one side of the case 12 and the door frame of the door and A through plate 16 facing each other, a reciprocating member 24 provided in the inner space 14, a key device 32 and a reciprocating member operating device 42 for reciprocating the reciprocating member 24; And a latch bolt drive device 46, a stopper control device 52, a stopper 50, and the like.

Three holes 17 are formed in the through plate 16. The hole 17 is a passage through which the dead bolt 18, the sensor bolt 20, and the latch bolt 22 enter and leave the plate.

On the other hand, the reciprocating member 24 is a member installed in the inner space of the case 12 in the longitudinal reciprocating motion has a form of FIG. Herein, the longitudinal direction is a direction orthogonal to the through plate 16. In any case, the dead bolt 18 is fixed to one end of the reciprocating member 24, and the first and second ground surfaces 24a and 24b are formed on the other end thereof.

The dead bolt 18 takes the form of a hexahedron and protrudes out of the case 12 to be inserted into a groove 60a provided in the door frame 60 of FIG. 4 to lock the door. When the dead bolt 18 enters the case 12 and is separated from the groove 60a, the door can be opened.

In addition, the first and second ground surfaces 24a and 24b extend at an acute angle (θ in FIG. 3), and provide a space for accommodating an end portion of the support arm 32d to be described later. The tip end surface of the support arm 32d is selectively caught by the first support ground 24a and the second support ground 24b to support the reciprocating member 24 in the outer direction of the case 12 or into the case 12. I support it.

That is, the support arm 32d presses the first support surface 24a to support the dead bolt 18 in the case 12 outward direction so as to keep the door locked or to open the door. As shown in FIG. 6A, the second supporting surface 24b is pressed to push the reciprocating member 24 in the direction of the arrow p so that the dead bolt 18 is positioned inside the case 12.

In addition, a locking jaw 24c is formed at one side of the reciprocating member 24. The locking jaw 24c is caught by the support jaw 50b of the stopper 50 to prevent the reciprocating member 24 from moving out of the case 24 as shown in FIG. 5C.

In addition, the spring 26 is provided on the side of the reciprocating member (24). The spring 26 is elastically supporting the dead bolt 18 in the outward direction of the case 12 and is fitted between the dead bolt 18 and the fixing wall 30. The fixed wall 30 is a support member fixed in the case 12 and holds the spring 26 in a compressed state between the dead bolts 18. Therefore, the dead bolt 18 is always elastically supported to the outside of the case 12 by the action of the spring 26, for example, when the dead bolt 18 is pressed into the case 12 and released, the dead bolt 18 protrudes out of the case 12 again. do.

The movement of the dead bolt 18 to the outside of the case 12 is limited by the bending jaw 24d. The bent jaw 24d is a jaw formed in the reciprocating member 24, which is caught by the fixed wall 30 and is restricted to prevent the reciprocating member 24 from moving further (outward in the case 12).

The key device 32 is a mechanical key (not shown) to move the reciprocating member 24 in the direction of the arrow z, that is, the dead bolt 18 to the case 12 to open the door. (When the dead bolt 18 enters the case 12, the door can be opened.)

The key device 32 has a cylindrical shape and is formed integrally with the body portion 32e having a key hole 32c formed therein, and an outer circumferential surface of the body portion 32e, and supporting the first and the second support. A support arm 32d extending between the surfaces 24a and 24b and a pivoting arm 32b positioned on the side of the support arm 32d and substantially perpendicular to the support arm 32d are provided.

The body portion 32e is axially rotated when it is turned clockwise by inserting a mechanical key from the outside to rotate the support arm 32d and the pivot arm 32b.

Moreover, the projection 32a is formed in the upper surface of the said support arm 32d. The projection 32a is a pressing portion that is pressed by the pushing portion 42f, which will be described later, as shown in FIG. 5C to allow the body portion 32e to axially rotate clockwise. The pushing part 42f pressurizes the projection 32a and the rotation of the body part 32e by inserting a mechanical key produces the same result.

In addition, one end of the spring 28 is fitted into the protrusion 32a. The spring 28 is provided with an elastic force in a direction in which the other end is fixed to the case 12 and the projection 32a is spaced apart from the wall surface of the case 12 as much as possible. That is, the spring 28 provides an elastic force in the direction in which both ends thereof open in the direction of the arrow y.

By the spring 28, the pivoting end portion of the support arm 32d can be kept in close contact with the first support surface 24a or the second support surface 24b. The support arm 32d supports the first support surface 24a to prevent the dead bolt 18 from entering the case 12 or supports the second support surface 24b to the inside of the case 12. The incoming dead bolt 18 is to remain in the case 12.

In addition, the pivoting arm 32b is a portion that is pushed by the projection 42n of the rotating disk 42k that rotates in the direction of arrow d as shown in FIG. 6B and receives a force to rotate the body portion 32e counterclockwise. . A more detailed description thereof will be described later.

On the other hand, a reciprocating member operating device 42 is provided below the key device 32. The reciprocating member operating device 42 is connected to an indoor handle (not shown) and an outdoor handle (not shown). The reciprocating member operating device 42 rotates when the interior handle is rotated (in the direction for opening the door) to pressurize and move the projection 32a through the pushing portion 42f. When the pushing portion 42f pushes the projection 32a and the support arm 32d moves from the first supporting ground 24a to the second supporting ground 24b, the reciprocating member 24 is moved in the direction of the arrow z. .

In addition, when the motor 34 is driven to rotate the outdoor handle (in the direction for opening the door) while the upper and lower housing plates 42d and 42e and the rotating disk 42k are fixed to each other as shown in FIG. It is for pressurizing and moving the projection 32a through 42f).

The reciprocating member operating device 42, the lower housing plate 42e and the upper housing plate 42d and the lower housing plate 42f having a pushing portion 42f that is coupled to each other to provide a space therebetween in the form a And a rotating disk 42k that is rotatably fitted between the upper and lower housing plates 42d and 42e.

The upper and lower housing plates 42d and 42e are directly fixed to the shaft 54 of the indoor handle. Accordingly, when the interior handle is rotated, the upper and lower housing plates 42d and 42e rotate at the same time so that the pushing portion 42f presses the protrusion 32a and the reciprocating member 24 moves in the direction of the arrow z. That is, as the interior handle simply rotates, the dead bolt 18 enters the case 12 to release the locked state of the door. Reference numeral 42c denotes a hole into which the shaft 54 of the indoor handle is inserted and fixed.

In addition, the rotating disk 42k is a disk-shaped member having a predetermined thickness and has the same center of rotation axis as the upper and lower housing plates 42d and 42e. In addition, the torque applying portion 42a is fixed to the rotation center of the rotating disk 42k. The torque application portion 42a is provided with a handle engaging hole 42b for fixing the rotation shaft of the outdoor handle.

An arc-shaped long hole 42p is formed at the side of the torque applying portion 42a. The arc-shaped long hole 42p has a constant curvature based on the center of rotation of the rotating disk 42k, and passes one shaft 54 of the interior handle inside thereof. Therefore, the rotating disk 42k can be relatively rotated in the upper and lower housing plates 42d and 42e fixed within the range allowed by the extension length of the long hole 42p. That is, the rotating disk 42k can be rotated for some time without moving the pushing part 42f.

In addition, a hook 42m is formed at one edge of the rotating disk 42k. The hook 42m is inserted into the engaging hole 40b of the rotating bracket 40e (as the motor 34 operates) as shown in FIG. 5B so that the rotating disk 42k moves in the direction of the arrow d of FIG. 5C. When rotating, the upper and lower housing plates 42d and 42e rotate at the same time.

On the other hand, the latch bolt driving device 46 is installed on the side of the reciprocating member operating device 42. The latch bolt driving device 46 is linked to the rotating disk 42k with a pin so as to open the door by pulling the latch bolt 22 into the case 12 when the rotating disk 42k is rotated.

The latch bolt driving device 46 is supported by the rotating shaft 44a on the case 12 and is rotatable about the rotating shaft 44a and pinned to the rotating disk 42k and opposite to the pin. A reciprocating bracket reciprocating in a direction parallel to the dead bolt 18 and connected to the latch bolt tension link 44 provided with a tension hook 44b and a latch bolt tension link 44 through a traction pin 56 ( 46c of FIG. 4, the latch bolt 22 fixed to the end of the reciprocating bracket 46c, and the latch bolt 22 are fixed to the latch bolt 22 and extend parallel to the reciprocating bracket 46c and wrapped in the spring 46b. Phosphorus extension rod 46a.

The extension rod 46a penetrates the fixing wall 48. In addition, the spring 46b elastically supports the latch bolt 22 to the outside of the case 12 in a state of being sandwiched between the latch bolt 22 and the fixing wall 48.

Accordingly, as shown in FIG. 5C, when the rotating disk 42k is rotated in the direction of the arrow d, the latch bolt tension link 44 rotates in the direction of the arrow k, and the extension rod 46a moves in the direction of the arrow e. The bolt 22 is pulled into the case 12. At this time, of course, the spring 46b is compressed. This means that the latch bolt 22 is returned to the outside of the case by the elastic restoring force of the spring 46b when the rotating disk 42k is rotated in the direction of the arrow d.

In particular, the pushing bracket 46d is fixed to one side of the reciprocating bracket 46c. The pushing bracket 46d serves to push up and down the lifting pin 52a toward the stopper 50 while reciprocating in the direction of arrow f in FIG. 5C or the opposite direction.

A stopper 50 is provided below the reciprocating member 24 in the drawing. The stopper 50 is capable of seesawing from side to side about the rotational shaft 50a and a stopper member 50e having a support jaw 50b formed at one end thereof and elastically supporting the stopper member 50e. The support jaw 50b has a spring 50f that provides elasticity to elastically pressurize toward the reciprocating member 24. The pressing portion 50c is formed on the opposite side of the supporting jaw 50b.

The pressing portion 50c is a portion pushed up by the lifting pins 52a moving in the direction of arrow a of FIG. 5A by the pushing bracket 46d. As the pressing portion 50c is pushed by the lifting pins 52a, the stopper member 50e rotates in the direction of the arrow b, of course.

In addition, a stopper controller 52 is provided between the stopper 50 and the latch bolt driving device 46. When the stopper control device 52 passes through the through plate 16 and closes the door, the stopper control device 52 is pushed by the door frame 60 of the door to enter the case 12 and the spring 52b is opened when the door 62 is opened. The sensor bolt 20 protruding out of the case 12 by the elastic force, the extension rod 52c fixed to the sensor bolt 20 and extending in the longitudinal direction, and fixed to a predetermined position of the extension rod 52c. And a lifting pin 52a which is accommodated in the pin holder 52e and movable in a direction orthogonal to the longitudinal direction of the extension rod.

The spring 52b is fitted in a compressed state between the pin holder 52e and the fixing wall 58. The fixing wall 58 is a fixing member fixed in the case 12 to support the spring 52b toward the pin holder 52e.

On the other hand, the side of the key device 32 and the reciprocating member operating device 42, the motor 34, the first rotary link 38 and the second rotary link 40 is provided.

The motor 34 operates when a password is input from the outside and has a worm gear 36 on the drive shaft. The motor 34 is driven by the power of a general battery.

The first rotary link 38 is a rotary cam (38a) rotatably supported on the rotating shaft (38b), and fixed to the rotary cam (38a) and extended to the worm gear 36 side to the worm gear 36 And a driven member 38c that meshes with the gear teeth. Since the driven member 38c meshes with the worm gear 36, the rotary cam 38a is angularly moved when the worm gear 36 is rotated in accordance with the driving of the motor 34. As shown in Figure 8, the driven member 38c preferably uses a linear member. The driven member 38c was made of spring steel. The driven member 38c is bent near the portion where the worm gear 36 is engaged with the worm gear 36. That is, the driven member 38c is in contact with the worm gear 36 in the form of surrounding the worm gear 36.

In addition, the second rotary link 40 is supported by the rotating bracket 40e supported by the rotating shaft 40d on the upper and lower housing plates 42d and 42e, and is supported by the rotating shaft 40d similarly to the rotating bracket 40e. It consists of a connection bracket 40a, a spring 40c installed between the rotary bracket 40e and the connection bracket 40a. In particular, the engaging bracket 40b is formed in the rotary bracket 40e.

As shown in FIGS. 5A and 5B, the second rotary link 40 is rotated in the direction of arrow d by being pushed by the rotation cam 38a when the rotating cam 38a rotates in the direction of arrow c. When the second rotary link 40 rotates in the direction of the arrow d, the hook 42m is fitted into the locking hole 40b.

In addition, the spring mounted between the rotary bracket 40e and the connection bracket 40a is for the purpose of buffering. For example, when the motor 34 is driven while the hook 42m does not reach the position where the hook 42m can be fitted into the locking hole 40b, the driven member 38c may be bent or the motor 34 may be damaged.

The operation of the door lock according to the present embodiment configured as described above will be described. Basically, the door lock 10 of the present embodiment can be opened by inputting a password or using a mechanical key outdoors, and can be opened by turning the handle indoors.

5A to 5D are diagrams for explaining an operation of opening the door lock shown in FIG. 1 by a password input method.

5A is a state before inputting a password to open the door. As shown in the drawing, the dead bolt 18 and the latch bolt 22 are inserted into the groove 60a provided in the door frame 60, and the sensor bolt 20 is pressed into the door frame to be pushed into the case 12 as much as possible. have.

In particular, the elevating pin (52a) is pushed in the direction of the arrow a by the pushing bracket (46d) to maintain the state in which the stopper member 50e is rotated as much as the direction of the arrow b. In addition, the rotary bracket 40e is also spaced apart from the hook 42m.

In the standby state as described above, when a password is input to a keypad (not shown) provided on the outdoor side of the door lock to open the door 62, an electric signal is generated to drive the motor 34.

When the motor 34 is driven, the driven member 38c is driven by the rotation of the worm gear 36 to rotate the rotation cam 38a in the direction of the arrow c. In this process, since the driven member 38c is linear as in the present embodiment (see FIG. 8), even if the driven member 38c and the worm gear 36 are not ideally engaged, the driven member Since 38c has flexibility in a direction perpendicular to its longitudinal direction, there is an effect that the motor 34 is not damaged. In addition, since the driven member 38c is formed to surround the worm gear 36 near a portion where the driven member 38c is engaged with the worm gear 36, the rotational force of the motor 34 is transmitted through the driven member 38c. There is an effect that is smoothly transmitted to the rotary cam (38a). That is, even when the distance between the center of the rotating cam 38a and the worm gear 36 is close, the driven member 38c operates smoothly without being caught by the worm gear 36, thereby improving wear and the door lock 10. ) Durability of the whole is improved.

As the rotary cam 38a rotates in the direction of the arrow c, the rotation bracket 40e rotates in the direction of the arrow d to accommodate the hook 42m in the locking hole 40b as shown in FIG. 5B.

In the state where the hook 42m is accommodated in the engaging hole 40b as described above, by rotating the outdoor handle to rotate the rotating disk (42k in FIG. 5C) in the direction of the arrow d, the upper and lower housing plates 42d and 42e simultaneously By rotating, the pushing portion 42f rotates the support arm 32d in the direction of the arrow m. The support arm 32d is pushed in the direction of the arrow m to move the reciprocating member 24 to the right, and pulls the dead bolt 18 held in the groove 60a into the case 12.

While the dead bolt 18 is pulled into the case 12 as described above, the latch bolt tension link 44 rotates in the direction of the arrow k to pull the extension rod 46a in the e direction. As the extension rod 46a moves in the e direction, the latch bolt 22 moves into the case 12, and in particular, the pushing bracket 46d moves in the direction of the arrow f, so that the lifting pin 52a is no longer supported. .

As the pushing bracket 46d is spaced apart from the lifting pin 52a, the supporting jaw 50b of the pushing bracket 46d pivots upward to be inserted into the catching jaw 24c and blocks the movement of the reciprocating member 24 in the opposite direction. do.

In this state, the door can be opened by pulling the door outer handle. In particular, when the door 62 is opened, the through plate 16 is spaced apart from the door frame 60, and thus the sensor bolt 20 moves in the direction of the arrow n as shown in FIG. 5D, and the lifting pin 52a is pushed. Further away from 50c.

In this way, the lifting pin 52a is spaced apart from the pressing part 50c and moves to the left side as much as possible. Therefore, even if the latch bolt 22 is returned to its original position by opening the door and freeing the handle (either freely or otherly), the lifting pin 52a is Does not meet the pushing bracket 46d (see FIG. 5D). That is, since the stopper member 50e continues to engage the reciprocating member 24, the dead bolt 18 does not protrude from the case 12 to close the door. It is not disturbed.

The dead bolt 18 is protruded from the case 12 until the door 62 is closed and the sensor bolt 20 is pushed into the case 12 by the door frame 60 to be fitted into the groove 60a. That is, the dead bolt 18 is the door 62 is closed, the sensor bolt 20 is moved to the inside of the case and the latching bolt 22 is projected out of the case 12 by pushing the pushing bracket (46d) lifting pin It presses against 52a and moves to the arrow b direction of FIG. 5A, and returns to outside of a case.

Eventually, after entering the password, turn the door handle and pull the door to open the door and close the door to lock the door.

6A and 6B are views showing how the door lock shown in Fig. 1 is opened with a key.

In order to open the door 62 using a mechanical key, a key (not shown) may be inserted into the key hole 32c, and the body portion 32e may be rotated in the direction of the arrow q. As described above, when the key hole 32c is rotated in the direction of the arrow q, the support arm 32d moves the reciprocating member 24 to the right in the drawing and the dead bolt 18 moves to the case 12 as described in FIG. 5A. Pull it inside.

In particular, when the support arm 32d is completely moved to press the second supporting surface 24b in the direction of the arrow p, the reciprocating member 24 is fixed in place by the elastic force of the spring 28. In the state in which the support arm 32d is rotated in this manner, the elastic force of the spring 28 supporting the support arm 32d acts more than the elastic force of the spring 26 supporting the dead bolt 18. These properties are possible through geometric design.

In any case, as long as the support arm 32d is temporarily fixed to the second support surface 24b, the dead bolt 18 does not protrude even if the key is removed from the keyhole. Of course, since the dead bolt 18 is out of the groove 60a, the door 62 can be opened.

In this state, as shown in FIG. 6B, when the outdoor handle is rotated to rotate the rotating disk 42k in the direction of the arrow d, the protrusion 42n meets the rotating arm 32b and rotates the rotating arm 32b counterclockwise. Pressurized to move. As the pivot arm 32b moves counterclockwise, the support arm 32d moves in the direction of the arrow s and is separated from the second supporting surface 24b.

On the other hand, while the support arm 32d is disengaged from the second support surface 24b, the latch bolt tension link 44 rotates in the direction of arrow k to move the pushing bracket 46d in the f direction. As the pushing bracket 46d moves in the direction of the arrow f, the lifting pins 52a are pulled out in the t direction, and the stopper member 50e rotates in the counterclockwise direction to stop the movement of the reciprocating member by engaging the locking jaw 24c.

When the door is pulled open in this state and the door is closed again, the dead bolt 18 protrudes from the case 12 and is locked as described with reference to FIG. 5.

FIG. 7 is a view for explaining the principle of opening the door lock shown in FIG.

As shown in the figure, when the handle shaft 54 is moved in the direction of the arrow by turning the interior handle, the upper and lower housing plates 42d and 42e rotate immediately, and the pushing portion 42f presses and moves the support arm 32d. The dead bolt 18 is separated from the groove 60a. Subsequent door opening and closing operations are the same as those of FIGS. 5C and 5D.

As described above, the door lock that is locked can be opened by simply rotating the handle. Of course, the door lock is automatically locked when the door is closed again.

As mentioned above, although this invention was demonstrated in detail through the specific Example, this invention is not limited to the said Example, A various deformation | transformation is possible for a person with ordinary knowledge within the scope of the technical idea of this invention.

1 and 2 are views for explaining the internal configuration of the door lock according to an embodiment of the present invention.

3 is a perspective view of the reciprocating member shown in FIG.

4 is a plan view showing the internal configuration of the door lock shown in FIG.

5A to 5D are diagrams for explaining an operation of opening the door lock shown in FIG. 1 by a password input method.

6A and 6B are views showing how the door lock shown in Fig. 1 is opened with a key.

FIG. 7 is a view for explaining the principle of opening the door lock shown in FIG.

8 is a view for explaining the shape of the driven member.

<Explanation of symbols for main parts of the drawings>

10: door lock 12: case 14: inner space

16: Through plate 17: Hole 18: Dead bolt

20: sensor bolt 22: latch bolt 24: reciprocating member

24a: first ground level 24b: second ground level 24c: locking jaw

24d: Bending jaw 26, 28: Spring 30: Fixed wall

32: key device 32a: protrusion 32b: pivot arm

32c: keyhole 32d: support arm 32e: body part

34: motor 36: worm gear 38: first rotation link

38a: rotating cam 38b: rotating shaft 38c: driven member

40: 2nd rotary link 40a: connecting bracket 40b: locking hole

40c: spring 40d: rotating shaft 40e: rotating bracket

42: Reciprocating member operating device 42a: Torque applying part 42b: Handle coupling hole

42c: Interior handle coupling hole 42d: Upper housing plate 42e: Lower housing plate

42f: Pushing part 42k: Rotating disc 42m: Hook

42n: protrusion 42p: long hole 44: latch bolt tension link

44a: rotating shaft 44b: tension hook 46: latch bolt drive

46a: extension rod 46b: spring 46c: reciprocating bracket

46d: pushing bracket 48: fixed wall 50: stopper

50a: rotating shaft 50b: support jaw 50c: pressing part

50e: stopper member 50f: spring 52: stopper controller

52a: Lifting pin 52b: Spring 52c: Extension rod

52e: Pin holder 54: Indoor handle shaft 56: Towing pin

58: fixed wall 60: door frame 60a: home

62: Door

Claims (10)

A case installed in the door frame so as to be opened and closed and built in a door having an indoor handle and an outdoor handle; A reciprocating member which is installed in the case so as to be movable in position and has a locking jaw formed at one side thereof and is elastically supported to the outside of the case; A dead bolt fixed to one end of the reciprocating member to protrude out of the case or to enter the case according to the position movement of the reciprocating member; A key device installed inside the case and having a key hole open to the outside of the case to rotate by inserting and rotating a key in the key hole to move the position of the reciprocating member; A reciprocating member operating device provided at the side of the key device and linked to the outdoor handle and the indoor handle to move the reciprocating member in association with the rotation of the handle; A reciprocating bracket connected to the reciprocating member operating device and linearly moving in the longitudinal direction when the inner and outer handles are rotated and elastically supported outside the case; A latch bolt fixed to one end of the reciprocating bracket and protruding out of the case or entering the case according to the operation of the reciprocating bracket; A stopper for temporarily fixing the dead bolt to the inside of the case by hanging the locking jaw when the dead bolt is moved into the case; Located on the side of the stopper door lock characterized in that it comprises a release means for removing the stopper from the locking jaw as the door is closed. The method of claim 1, The release means; A sensor bolt positioned on the side of the stopper and moved to the inside of the case by being pressed by the door frame when the door is closed, and moving elastically in the outside of the case by a spring when the door is opened; The door lock is installed so as to be movable in the position of the sensor bolt, and comprises a pin to move the stopper side by the reciprocating bracket when the reciprocating bracket is moved to separate the stopper from the locking step. The method of claim 2, The stopper; A member extending from side to side with the pivot shaft at the center thereof, and one end thereof is provided with a support jaw inserted into the locking jaw to temporarily fix the dead bolt, and pushed by the pin at the opposite end with respect to the pivot shaft. A stopper member having a pressing portion for separating the support jaw from the locking jaw; And an elastic means for elastically supporting the support jaw of the stopper member toward the locking jaw side. The method according to any one of claims 1 to 3, The key device is; A cylindrical body portion in which the key hole is located; It is provided on the outer circumferential surface of the body portion and consists of a support arm that rotates by rotating the body portion as the rotating shaft, The other end of the reciprocating member is located on the rotation path of the support arm and is moved by the support arm when the body rotates to move the dead bolt into the case, and the support arm is rotated to the maximum. Door lock, characterized in that the support surface for temporarily fixing the end of the formed. The method of claim 4, wherein The reciprocating member operating device; A housing plate connected to the interior handle and rotating in operation of the interior handle, the housing plate having a pushing portion extending toward the support arm to press the support arm toward the support surface; It is connected to the outdoor handle to rotate when the outdoor handle is operated, having the same center of rotation axis as the housing plate is linked to the reciprocating bracket, and when operating the outdoor shaft handle is rotated in the fixed state of the housing plate reciprocating bracket A rotating disk for moving the latch bolt through the case; The door lock is installed between the housing plate and the rotating disk and comprises a connecting means for fixing the rotating disk to the housing plate if necessary to rotate the housing plate when operating the outdoor handle. The method of claim 5, The connecting means; A hook formed on one side of the rotating disk, the rotating bracket is rotatably installed on the housing plate and is fixed to the hook by the hook to secure the rotating disk and the housing plate, and the rotating bracket driving unit rotates the rotating bracket. Door lock comprising a. The method of claim 6, The rotating bracket driving unit; A motor operated by an external electric signal and provided with a worm gear on the drive shaft; A rotating cam installed to be rotatable on the side of the motor, and part of which rotates the rotating bracket by pressing the rotating bracket according to the rotation; And a driven member extending to the worm gear side while being fixed to the rotating cam to be engaged with the gear of the worm gear and driven by the rotation of the worm gear to rotate the rotating cam so that the rotating cam rotates the rotating bracket. Door lock. The method of claim 5, The outer circumferential surface of the body portion is further provided with a rotating arm extending to the outside of the body portion, The rotating disk has a door lock, characterized in that a projection for separating the support arm temporarily fixed to the support surface from the support surface by pressing the rotating arm to rotate the body portion in the opposite direction. The method of claim 7, wherein The driven member is a door lock, characterized in that the linear member made of spring steel. The method of claim 9, The driven member is a door lock, characterized in that the curved portion near the contact with the dignity gear.

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