KR100445369B1 - Door lock having a gear assembly - Google Patents

Abstract

The present invention relates to a door lock equipped with a gear combination which is mounted on the front door of a house or apartment and reliably and stably operates.

The present invention is to open and close the door by reversing the dead bolt 20 automatically or manually by the motor (M) and the gear assembly 200 driven by the motor (M) acting as an electrical signal of the controller. In the door lock to be able to rotate, meshed with the gear assembly 200 and rotated, in order to maximize the transmission of the rotational force of the motor (M) through the gear assembly 200 of the arc of a predetermined angle on one side about the rotation axis An operating gear 130 formed through the guide hole 135; An actuating pin 150 inserted into the guide hole 135 of the actuating gear 130 is formed at an upper end of the actuating gear 130, and is landed in the recess 25 of the deadbold 20 to transfer the deadbolt 20 to the dead bolt 20. The actuating rod 145 for moving backwards is formed horizontally in the center portion, and the actuating gear 130 is configured to include an actuating shaft 140 mounted on the top thereof concentrically.

According to the present invention, it is possible to prevent malfunctions by precise control, thereby smoothly and stably opening and closing the door lock, thereby improving the reliability, and providing a door lock having excellent quality at a low manufacturing cost.

Description

Door lock with gear combination {DOOR LOCK HAVING A GEAR ASSEMBLY}

The present invention relates to a door lock device mounted on the front door of a house or apartment, and more particularly, a plurality of gears are rotated by driving a small motor provided inside the case, whereby the dead bolt is stable. To make it work.

In general, various door lock devices for locking a door by using a dead bolt have been disclosed.

For example, as shown in FIG. 1, the 'Digital Auxiliary Door Lock' has been disclosed as Patent Publication No. 2001-0019650, which is as follows.

A motor M operated by a drive signal of the microcomputer; A drive gear FG connected to the motor M and a driven gear FG connected through a reduction gear group RG connected to the drive gear MG; A lever shaft LS installed rotatably through the base frame BF to loosely insert the driven gear FG, and connected to an inside handle and a key cylinder to operate a dead bolt DB; It is installed in the lever shaft (LS) is a configuration consisting of a torsion accumulation spring (TS) for receiving the rotational force of the driven gear (FG) to accumulate the torsional force to operate the lever shaft (LS) with the accumulated torsional force.

That is, after the rotational force of the motor M transmitted to each of the driving and driven gears MG FG is accumulated as the elastic force of the torsion accumulation spring TS, the elastic force is returned by the torsion accumulation spring TS. The lever shaft (LS) is operated to cause the dead bolt (DB) to move forward and backward.

In addition, a plurality of micro switches MS are provided around the lever shaft LS to be touched according to the rotational direction of the inside lever IL provided on the lever shaft LS, and to transmit electrical signals. It is to control the operation of.

However, the door lock device has a problem that the deceleration rate is limited compared to the number of revolutions of the motor, so that the capacity of the motor is increased, thereby shortening the life of the battery, thereby increasing user dissatisfaction due to frequent battery replacement.

In addition, if the micro switch, which is frequently touched by frequent operations, fails, there is a problem that frequent troubleshooting is lost to users.

In addition, the worm wheel engaged with the worm gear built in the motor has a problem that the cost of the overall door lock device increases because the manufacturing cost is high.

The present invention has been made to solve the problems described above, the object of the present invention is to minimize the capacity of the drive motor, to facilitate the opening and closing operation of the door lock device.

In addition, another object of the present invention is to minimize the consumption of the battery by the minimized motor as described above to extend the life of the battery.

In addition, another object of the present invention is to allow the latch bolt to operate stably by the interaction of the rack and pinion.

In addition, another object of the present invention is to prevent the occurrence of a failure, and to give a confidence to the user by preventing a malfunction occurs by precise control.

In addition, the low cost of the door lock by the spur gear of low production cost to provide a low cost but excellent product.

1 is a plan view showing for explaining the configuration of a conventional door lock device;

Figure 2 is an exploded perspective view for explaining the configuration of the door lock provided with the present invention gear combination in detail.

Figure 3 is a plan view for explaining in detail the configuration of the door lock provided with the present invention gear combination.

Figure 4a) and b) is a plan view showing the connection of each gear to explain the operation of the dead bolt of the door lock equipped with the present invention gear combination.

5 a) and b) are plan views for explaining the operation of the latch bolt of the door lock provided with the present invention gear combination.

* Description of the symbols for the main parts of the drawings *

10; door lock 10a; top plate

20; dead bolt 30; latch

40; Latch Bolt 50; Handle Gear

60; rack 70; pinion

100; first gear 110; second gear

120; third gear 130; operating gear

135; guide hole 140; working shaft

145; operating rod 150; operating pin

200; gear assembly M; motor

The present invention relates to a motor operated by an electric signal of a controller, and a door lock for opening and closing a door by automatically or manually moving a dead bolt forward or backward by a gear combination driven by the motor.

An operating gear which is engaged with the gear assembly and rotates, wherein a guide hole of an arc having a predetermined angle passes through one side of the rotation axis to maximize transmission of the rotational force of the motor through the gear assembly;

An actuating pin inserted into the guide hole of the actuating gear is formed at one upper end, and an actuating rod which is landed in the groove of the deadbold to move the dead bolt forward and backward is formed horizontally at the center part and the actuation at the top It is characterized in that the gear is configured including an operating shaft seated concentrically.

Hereinafter, with reference to the exemplary drawings will be described in detail a preferred embodiment of the present invention.

Figure 2 is an exploded perspective view for explaining in detail the configuration of the door lock provided with the present invention gear combination, Figure 3 is a plan view for explaining the configuration of the door lock provided with the present invention gear combination in detail, a) and b of Figure 4 ) Is a plan view showing the connection of each gear to explain the operation of the dead bolt of the door lock provided with the gear assembly of the present invention, Figure 5a) and b) of the latch bolt of the door lock provided with the present invention gear combination. It is a top view for demonstrating operation | movement.

As shown in Figures 2 and 3, the door lock of the present invention is basically fastened to the plurality of fastening knobs (KN) formed in the interior of the case 10 by a piece bolt (PB), which is a conventional fastening means. To do that.

2 to 5, the door lock provided with the gear combination of the present invention is the gear combination 200 provided on one side in the case 10 and the gear combination 200 is engaged with the operation rod 145 ), An actuating gear 130 for operating the dead bolt, a dead bolt 20 which is operated forward and backward by the actuating rod 145, and a latch 30 that is momentarily pushed back by the door frame when the door is opened and closed and then protrudes again. ), And the latch bolt 40 is operated by the rack 60 and the pinion 70, the front and rear.

As shown in FIG. 2, the case 10 has two or more knobs KN formed on the rear inner side of the case 10 along the inner wall, and two or more coupling grooves D1 are formed on the front surface thereof while maintaining a predetermined interval.

In addition, the upper plate 10a coupled to the upper end of the case 10 by a piece bolt (PB) is formed with two or more coupling protrusions (D2) to be fitted to the coupling groove (D1) at the front end, the knob ( The through hole TH is formed at the rear end to be screwed to KN).

The case 10 and the upper plate 10a will be described in more detail in the description of each component to be described later.

The motor M located on one side of the case 10 is inserted into the shaft hole 92 formed in the center of the motor bracket 90 by penetrating the motor shaft of the motor M, and of the motor bracket 90. Inserting a piece of bolt (PB) in the bolt hole 94 formed on both sides to the upper end of the fastening knob (KN) formed in the circumferential shape fixed to the bottom surface of the case 10 when the motor (M) Is fixed to the bottom surface of the case 10.

In addition, the first gear 100 is coupled to the motor shaft 91 upward of the motor M, the gear combination 200 is provided to increase the torque by reducing the rotational force of the motor (M). .

As shown in FIG. 3, the configuration of the gear assembly 200 will be described. A second gear 110 is provided at one side of the first gear 100 coupled to the motor M. The second gear 110 is concentric with the upper second gear 110a meshed with the first gear 100, and the lower second gear 110b is formed integrally with the upper second gear 110a. The lower second gear 110b is engaged with the lower third gear 120a of the third gear 120 provided at one side thereof.

In addition, the upper third gear (120b) formed concentrically on the upper side of the lower third gear (120a) is a configuration that is engaged with the operating gear 130, the guide hole 135 is formed on one side of the first gear (100). ) Is gradually decelerated by gradually increasing the pitch diameter (PCD) of the gear meshed with each other from the third gear 120, the torque, that is, the torque (Torque) is increased.

Referring to the configuration of the operating gear 130, a guide hole of a predetermined width concentric with the rotation axis of the operating gear 130 on one side of the plane of the operating gear 130 meshed with the upper third gear 120 The through hole 135 is formed in the center, and a coupling hole 132 is formed in the center portion thereof so that the operation shaft 140 to be described later is rotatably fitted.

In addition, the guide hole 135 is formed as a circular arc when the operating gear 130 is rotated by the drive of the motor (M), the idle rotation by the length of the circular arc of the guide hole 135 and thereby, the rotational acceleration By transmitting a more reliable rotational force to the operation pin 150 to be described later to induce a more stable movement of the front, rear of the dead bolt 20 to be described later.

The operation shaft 140 has an upper end portion 141 having a smaller outer diameter to be inserted into the operation hole 12a of the upper plate 10a of the case 10, and an operation hole formed in the bottom surface of the case 10. The lower end portion 141 is also formed to have the same outer diameter as the upper end portion 141 so as to be rotatably fitted to the 12.

In addition, the operating shaft 140 is a locking pin hole 144 penetrated through the central portion of the cross section is not shown, but to facilitate manual operation by the rotation of the locking shaft is inserted.

At the center of the operating shaft 140 having the same depth as the thickness of the operating gear 130, an outer diameter of the guide hole is in close contact with a lower end of the operating gear 130 to maintain a coupling position of the operating gear 130. Stepping step (143) close to the inner surface of the 135 is integrally formed, and one side of the stepping step (143), the operation pin 150 is inserted into the guide hole 135 formed in the operation gear 130 is vertical Is formed.

The actuating rod 145 integrally formed with the actuating pin 150 at the lower end of the actuating pin 150 may be at least a dead bolt (not described below) at the lower end of the step 143 toward the rotation axis of the actuating gear 130. 20 is formed to be the same as the depth of the groove 25, the lower end is in close contact with the groove 25 is rotated hinged around the rotation axis of the operating shaft 140 by the rotation of the operating gear 130. The dead bolt 20 is formed to move forward, backward.

As shown in (a) and b) of FIG. 4, the dead bolt 20 passes through the first square hole SH1 formed at one side of the case 10 and passes through the front end of the dead bolt 20. This function is used to lock and unlock doors not shown.

In addition, a guide block (GB) is formed at the upper end of the dead bolt 20 to stably guide the front and rear movement of the dead bolt 20, the width of the guide block (GB) and at least the The guide block GB is seated in the guide hole GH formed in the upper plate 10a of the case 10 longer than the front and rear stroke distances of the dead bolt 20.

In addition, the rear end of the dead bolt 20 is formed in the inlet hole (20a) in the long hole shape, the inside of the induction hole (20a) when the sliding to the front and back, the above-mentioned known piece bolt (PB) is fastened.

In addition, the rear end of the induction hole (20a) is provided with a groove 25 is formed so that the operation rod 145 is easily rotated by a predetermined step in the front or rear depending on the position where the operation rod 145 is provided. The dead bolt 20 is to be moved. That is, as described above, the operation rod 145 inserted into the guide hole 135 of the operation gear 130 by the deceleration of the gear assembly 200 by the rotation of the motor M and the rotation of the operation gear 130. By operating the operation pin 150 integrated with the), the dead bolt 20 is moved forward or backward.

As shown in FIG. 3, the case 10 has a first first sensor S1 and a well-known first sensor at one side of the front end and the rear end of the dead bolt 20 in order to detect the operation of the dead bolt 20. The second detection sensor s2 is provided, and the magnet holder MGH is provided with the first and second detection sensors so that a known magnet is provided at the front end of the induction hole 20a of the dead bolt 20. S1 · s2 is protruded in the direction provided is easy to detect by the first and second detection sensors (s1, s2), the first detection sensor also detects the action of the latch 30 to be described later.

2 and 3, the latch body 31 penetrates the latch body 31 through the second square hole SH2 formed at one side of the first square hole SH1 as described above. An elastic groove 32 is formed at the rear surface of the 31 to allow the spring SP to be inserted into the elastic body.

In addition, one end of the spring (SP) is inserted into the elastic groove 32 is inserted into the support pin (37a) of the support (37) provided at the rear of the latch body 31 while the other end maintains a certain distance. Combined.

Therefore, when the elastic force is applied to the rear of the latch body 31 to maintain the state protruding forward and open and close the door (not shown), the latch body 21 is momentarily pushed back by the door frame and then again. To protrude.

In addition, a known first detection sensor s1 is installed at one side of an inner wall of the front surface of the case 10 so that the operation of the latch body 31 is detected by the first detection sensor s1.

In addition, the guide block (GB) is formed on one side of the upper end and the lower end of the latch body 31, respectively, is seated in each guide hole (GH) formed in the bottom surface and the upper plate (10a) of the case 10, Stable back movement

When the selection switch CS, which will be described later, is placed in an automatic position and the door (not shown) is opened and closed, the action of the latch body 31 that is flipped back by the door frame and protrudes by the elastic force of the spring SP is applied. When detected by the first detection sensor (s1), by sending an electrical signal to the motor (M) to operate the motor (M), thereby, the gear combination 200 and the operating gear 130 By automatically operating the operating rod 145 through, the dead bolt 20 is advanced and locked.

In addition, when the dead bolt 20 is locked forward, the first detection sensor (s1) detects a sensor provided in the dead bolt 20 to send an electrical signal to the motor (M) to the motor (M) Will stop driving.

In addition, when the password set in the input unit of the not shown in the outdoor door is input, the dead bolt 20 is moved to the rear by the above method is released, thereby, the second detection sensor (s2) The sensor 20s provided in the dead bolt 20 is sensed to send an electrical signal to the motor M to stop driving of the motor M.

In addition, when the selection switch CS to be described later is manually selected, the dead bolt 20 is not automatically moved by the latch 30, and an input unit (not shown) in which an outside person is provided in an outdoor door is provided. By inputting the password set in the dead bolt 20 is moved to the front to lock, as described above, by entering the password to the input unit, the same is released.

The selection switch CS is a well-known switch formed on one side of an indoor door to select manual and automatic by an artificial operation. The selection switch CS is configured by selecting the manual and automatic positions of the motor M. ) Can be controlled.

On the other hand, a battery tray (not shown) for inserting a known battery (Battery) is provided, and also known as a controller (Controller) for electrically controlling the operation of each component through the above-described sensor A PCB board is provided.

The P.C.B board controls the operation of each component by inputting a program into a CPU (central processing unit) or an IC (integrated circuit) so that the operation of each component is smooth.

As shown in FIGS. 2 and 5 a) and b), the latch bolt 40 has a latch bolt body 41 formed in the third square hole SH3 formed at one side of the second square hole SH2. ) Is penetrated, and the back of the latch bolt body 41 has a connecting table 42 having a connecting groove 43 formed at an end thereof, and is coupled to the connecting plate 72 of the pinion 70 to be described later. The operation gear 130 meshes with the handle shaft gear 50 formed in the handle gear shaft 51 through which the polygon handle shaft hole 55 passes, and the handle shaft gear 50 is moved. The gear gear is formed only on the circumference of the predetermined angle to be engaged therewith, and is connected to the connecting gear 65 having the rack gear 61 formed integrally with the arc of the predetermined angle on one side thereof. A connecting plate 72 is formed at a front end portion and engages with a pinion 70 having a pinion gear 71. The connecting plate 72 is formed at a rear end of the latch bolt body 41. Combine with (42).

In addition, a spring SP is inserted into the connecting table 42 so that the latch bolt main body 41 moves forward by an elastic force, and the case 10 supports the elastic force of the spring SP. An elastic support 45 is formed upright on the bottom surface, and a movable hole 45a is formed in the elastic support 45 so that the connecting table 42 moves without interference.

That is, when the latch bolt 40 is moved to the rear, the latch bolt 40 is moved forward again by the elastic force of the spring (SP) supported by the elastic support 45.

The pinion 70 is formed with a connecting plate 72 having a seating groove 73 having an upper end opened in a connecting groove 43 formed in the connecting table 42, and the connecting plate 72. A pinion gear 71 is formed at an inner lower end of the gear plate 74 to which the coupling is fixed and engaged with the rack gear 61 of the rack 60 to be described later.

In addition, a guide block 75 is formed at an outer upper end of the gear plate 74 so as to be seated in the guide hole 15 which is longer than the width of the guide block 75 on one side of the case 10. To guide the front and rear movement of the pinion 70.

In addition, through holes TH are formed at both sides of the gear plate 74 on which the guide block 75 is formed, and a known piece bolt PB is formed through the guide hole 15 from the outside of the case 10. It is coupled to the through hole (TH) to secure the pinion (70) and at the same time stable movement of the front, rear.

The rack 60 is composed of a connecting gear 65 formed on the central rotation shaft, and a rack gear 61 formed on one side of the connecting gear 65 to engage with the pinion gear 71.

The connecting gear 65 is geared to only one side is meshed with the handle shaft gear 50 to be described later, when the handle shaft gear 50 is rotated, the connecting gear 65 is rotated only at a predetermined angle formed gear As a result, the rotation of the handle shaft gear 50 is controlled and at the same time, the operation of the rack gear 61 formed integrally with the connecting gear 65 is adjusted.

In addition, the rack gear 61 is formed in an arc of a predetermined angle on one side of the connecting gear 65 is meshed with the pinion gear 71, between the connecting gear 65 and the pinion gear 71. Connect to transmit the driving force.

The arc of which the rack gear 61 is formed should be formed at least equal to the length of the pinion gear 71, and the gear formed at a predetermined angle on the connecting gear 65 is the connecting gear. At least the rack gear 61 must be formed so as to engage from the front end to the rear end of the pinion gear 71 by the rotation of the 65.

The connecting gear 65 and the rack gear 61 are integrally formed so that when the latch bolt 40 is advanced by the elastic force, the connecting gear 65 rotates in the clockwise direction according to the illustrated direction. The tooth end gear teeth are meshed with the handle shaft gear 50, and the end gear teeth are meshed with the rear end of the pinion gear 71 when the rack gear 61 is rotated in the clockwise direction.

Referring to FIG. 3, in order to open a door (not shown), when the knob of the figure is rotated counterclockwise, the handle shaft gear 50 rotates counterclockwise, and the connecting gear 65 rotates clockwise. The rack gear 61 integrally formed with the connecting gear 65 also rotates clockwise so that the pinion gear 71 moves to the left (actually to the rear), and the latch bolt 40 moves to the left. Move to open the door (not shown).

The handle gear 50 is formed on a handle gear shaft 51 through which a polygonal handle shaft hole 55 passes.

The handle gear shaft 51 has an upper end portion 52 having a smaller outer diameter to be inserted into the handle hole 14a of the upper plate 10a of the case 10, and a handle formed on the bottom surface of the case 10. A lower end (not shown) is also formed to have the same outer diameter as the upper end 52 so as to be rotatably fitted to the hole 14.

In addition, a lock shaft of a polygon (not shown) is inserted into the handle shaft hole 55 of the handle gear shaft 51 to facilitate manual operation by rotation thereof.

Without departing from the gist of the invention as claimed in the claims, it is not limited to the specific preferred embodiment anyone of ordinary skill in the art that various modifications are possible, of course, such modifications Is within the scope of the claims of the present invention.

According to the present invention, while minimizing the capacity of the drive motor, the opening and closing operation of the door lock device is effective to smooth.

In addition, by minimizing the motor as described above, the consumption of the battery is also minimized, thereby extending the life of the battery.

In addition, there is no failure, and by the precise control to prevent the occurrence of malfunction has the effect of giving confidence to users.

In addition, there is an effect that the latch bolt is stably operated by the interaction of the rack and the pinion.

In addition, by lowering the cost of the door lock by the spur gear having a low production cost, there is an effect of supplying a door lock of low cost but excellent quality.

Claims (3)

A motor operating with an electrical signal of the controller, a dead bolt for opening and closing the door by automatically or manually moving back and forth by a gear combination driven by the motor, a latch for reversing momentarily to generate a signal when the door is opened and closed, and a door; In the door lock formed of a latch bolt that is moved forward and backward by the rotation of the handle when opening and closing, An operating gear which is engaged with the gear assembly and rotates, wherein a guide hole of an arc having a predetermined angle passes through one side of the rotation axis to maximize transmission of the rotational force of the motor through the gear assembly; An actuating pin inserted into the guide hole of the actuating gear is formed at one upper end, and an actuating rod which is landed in the groove of the deadbold to move the deadbolt forward and backward is formed horizontally in the center, and the actuating at the upper end. A door lock having a gear assembly comprising a; an operating shaft on which the gear is mounted concentrically. The method of claim 1, The operating gear meshes with the handle shaft gear formed on the handle gear shaft through which the polygon handle shaft hole passes. The handle shaft gear is connected to a connecting gear having a gear gear formed only at a circumference of a predetermined angle engaged with the handle shaft and integrally formed at one side with an arc of a predetermined angle. The rack gear is engaged with the pinion having a connecting plate formed in the front end portion and the pinion gear, The connecting plate is coupled to the connecting rod formed on the rear end of the latch bolt body is a door lock with a gear combination, characterized in that the latch bolt body is configured to move forward, backward by the rotation of the handle shaft gear. The method of claim 2, When the latch bolt main body moves backward, the spring is inserted into the connecting table so as to be advanced by the elastic force, and an elastic support for supporting the elastic force of the spring is formed on the bottom surface of the case. .