KR200493472Y1 - Digital locking apparatus for locker - Google Patents

Abstract

The present invention can prevent damage to parts by providing an idling means that absorbs excessive rotational force when an excessive rotational force is applied to the power transmission mechanism that transmits the rotational force of the driving motor to the locker, and the door closing detection mechanism is composed of parts with low material cost As a result, not only can the manufacturing cost be reduced, but there is no need to install a door closing detection device on a separate door frame, so it is convenient to install and provides a digital locking device for a locker that can shorten the construction time.
In the digital locking device for a locker of the present invention, the power transmission mechanism includes a first idle member having an idle support surface on the outer circumference and an idle rotation of the first idle member, provided with a locker on one side and supported for rotation in the inner body. It has an idle surface fitted to the outside of the support surface to support rotation, and a plurality of grooves are continuously formed in the circumferential direction on the idle surface, and a second idle member having a gear part formed on the outer circumferential surface, and the second idle member installed on the first idle member. A locking member capable of being inserted and detached from the groove of the idling member, and an elastic member that is elastically installed between the first idling member and the locking member to impart an elastic force in the direction in which the locking member is inserted into the groove of the second idling member; It consists of a reduction gear group for transmitting the rotational force of the drive motor to the gear portion of the second idle member.

Description

Digital locking device for locker {DIGITAL LOCKING APPARATUS FOR LOCKER}

The present invention relates to a digital locking device for a locker, and more particularly, it is possible to prevent damage to parts by excessive power transmission of the locker driving unit that locks and unlocks the striker of the door frame by driving the locker, and the door is closed. The present invention relates to a digital locking device for a locker capable of simplifying installation work by making the function of detecting and starting the automatic locking operation performed by a simple push switch and a mechanical configuration.

In general, lockers are used jointly by several people in changing rooms such as public baths, saunas, steam rooms, and large water facilities, or in storages such as libraries, schools, and subways, so a locking device is provided on the door, and as a locking device. Recently, digital locking devices that operate as number keys or electronic recognizers have been used more than mechanical types using keys.

As a prior art of such a digital locking device for a locker, a door lock device for a locker of Registered Utility Model Publication No. 20-0436157 is known.

The prior art, as shown in Figs. 1 to 3, the outer body 23 fixedly installed on the outer surface of the door 20, and the inner body 22 fixedly installed on the inner surface of the door 20 It is equipped with.

The outer body 23 includes a key input unit 40 comprising a number key 41 and an electronic recognizer 43, and a first circuit unit including a control unit for controlling the device by receiving a signal input from the key input unit 40 50 is provided.

The inner body 22 includes a locker 21 that is caught and released from the striker 11 provided in the door frame 10, and a driving motor 31 and a power transmission mechanism 32 for operating the locker 21 And a second circuit part for operating the locker driving part 60 by receiving a control signal from the first circuit part 50 and connected to the first circuit part 50 by a conducting wire 51 and receiving a control signal from the first circuit part 50. And a power supply unit 33 electrically connected to the second circuit unit 70 to supply power to the driving motor 31 of the locker driving unit 60, and the power supply unit 33 Consists of batteries.

Such a digital locking device, when locking or opening the locker 21 by driving the driving motor 31, a position sensor (not shown) detects the position of the locker 21 to stop the driving of the driving motor 31 By doing so, the stop position of the locker 21 is determined.

However, due to the driving characteristics of the driving motor 31, the law of inertia acts, so that even if the power of the driving motor 31 is cut off, it does not stop immediately, so that the locker 21 proceeds further than the stop position to the inner body 22. There is a problem of hitting and causing an impact.

In addition, the power transmission mechanism 32 that transmits the rotational force of the driving motor 31 to the locker 21 is composed of a group of reduction gears combining several gears of different diameters. Is damaged or the rotation shaft for supporting the rotation of the gear is bent, etc., and the locker 21 is in a state in which the inner body 22 is pressed because of the force to continue moving even when it hits the inner body 22. When moving in the opposite direction to (21), the load of the driving motor 31 increases, resulting in increased current consumption, and thus, there is a problem of shortening the battery life.

In view of this problem, it is possible to set the stop time of the drive motor 31 to a little earlier, but in this case, a problem occurs in that the locker 21 is not completely locked or completely opened.

In addition, the conventional digital locking device for a locker is further provided with a function of automatically locking the locker 21 by the striker 11 of the door frame 10 by operating the locker driving unit 60 by sensing the closed state of the door. As a result, for example, in the door locking device of Korean Patent Application Publication No. 10-2005-0045242, a door closing detection means using a permanent magnet and a magnetic sensor is known.

Door closing detection means using a permanent magnet and a magnet sensor, as shown in Figure 2, the permanent magnet 81 is installed on the door frame 10, the magnet sensor 82 is the permanent when the door 20 is closed. It is installed on the inner body 22 facing the magnet 81. Therefore, when the door 20 is closed, the magnet sensor 82 senses the magnetic field of the permanent magnet 81 and sends a signal to the second circuit unit 70, and the second circuit unit 70 operates the locker driving unit 60. Because the locker 21 can automatically lock the door.

However, the operation of installing the permanent magnet 81 on the door frame 10 is very cumbersome in the door closing detection means comprising the permanent magnet 81 and the magnet sensor 82 as described above. Depending on the locker, it is difficult to install the permanent magnet 81, so that a separate fixing bracket may be additionally fixed. There are many cases where more than a hundred lockers are provided in one place, and there is a disadvantage that it takes a lot of work time due to the installation of the permanent magnet 81, and the permanent magnet 81 and the magnetic sensor 82 have a high material cost. It is a factor that increases the manufacturing cost of digital locking devices.

In addition, as shown in FIG. 3, the conventional digital locking device includes a locker driving unit 60, a second circuit unit 70, and a power supply unit 33 inside the inner body 22, and the driving unit 60 And the second circuit unit 70 are disposed above the inner body 22, and the power supply unit 33 is disposed at the bottom.

At this time, the power supply unit 33 uses a general battery in a cylindrical shape, and the height of the inner body 22 in the vertical direction is increased. When the height of the inner body 22 becomes longer, especially in the case of a locker storing shoes, since the inner space is narrow, the lower end of the inner body 22 may come into contact with the shoes, and improvement thereof is urgently needed. have.

The present invention is to solve the conventional problems as described above, and its purpose is to prevent damage to parts by providing an idle rotation means that absorbs excessive rotational force when an excessive rotational force is applied to the power transmission mechanism that transmits the rotational force of the driving motor to the locker. It is to provide a digital locking device for lockers that can be used.

In addition, another object of the present invention is that it is possible to reduce manufacturing cost by constructing a door closing detection device with a low material cost, as well as convenient construction and shortening the construction time because there is no need to separately install a door closing detection device on the door frame. It is to provide a digital locking device for lockers that can be used.

In addition, another object of the present invention is a digital locking device for locker that can secure the inner space of the storage box so that the bottom of the inner body does not contact the shoes, especially in the case of a shoe storage box with a narrow inner space by reducing the height of the inner body. It is to provide.

In order to achieve the above object, the present invention includes an inner body installed on the inner surface of a door, a locker installed in the inner body to be locked and released from the striker of the door frame, and installed in the inner body to operate the locker. A digital locking device for a locker comprising a locker driving unit comprising a driving motor and a power transmission mechanism, and a power supply unit for supplying power to the driving motor of the locker driving unit, wherein the power transmission mechanism includes the locker on one side, and A first idle member that is supported for rotation in the inner body and has an idle support surface on the outer circumferential surface; A second idling member having an idling surface fitted outside the idling support surface of the first idling member to support rotation, a plurality of grooves formed continuously in the circumferential direction on the idling surface, and a gear portion formed on the outer peripheral surface; A locking member installed in the first idle member to be inserted into and detached from the groove of the second idle member; An elastic member that is elastically installed between the first idle member and the locking member to impart an elastic force in a direction in which the locking member is inserted into the groove of the second idle member; And a digital locking device for a locker comprising a reduction gear group for transmitting the rotational force of the driving motor to the gear portion of the second idle member.

In addition, the present invention further includes a door closing detection mechanism for operating the locker driving unit by detecting the closed state of the door in the inner body, the door closing detection mechanism is installed freely around one axis in the inner body to close the door A lever member rotating by the striker of the door frame at the position; A tact switch installed on the inner body to drive the driving motor; A slide member installed to be linearly movable on the inner body and linearly moved between a standby position spaced apart from the tact switch and a switch operation position for operating the tact switch in interlocking with the rotational motion of the lever member; A first spring that is elastically installed between the slide member and the tact switch to provide an elastic force in a direction in which the slide member moves to the standby position; And a second spring installed between the slide member and the button of the tact switch to operate the button of the tact switch when the slide member moves to the switch operation position.

In addition, in the present invention, the power supply unit is arranged in parallel with the locker driving unit in the inner main body in a horizontal direction to reduce the height of the inner main body.

The present invention having the above characteristic configuration is that the power transmission mechanism for transmitting the rotational force of the driving motor to the locker is provided with an idle means consisting of first and second idle members, a locking member, and an elastic member, which is unreasonable for the power transmission mechanism. When the rotational force is applied, it absorbs it to prevent damage to the parts, and prevents the locker from pressing the inner body in the locked position so that the driving motor is not loaded when the locker is operated in reverse, thereby maintaining the useful life of the battery. have.

In addition, the present invention detects the closed state of the door and automatically locks the door by means of a mechanical configuration consisting of a lever member and a slide member installed on the inner body, and a takt switch, so that the material cost is high. Compared to the conventional configuration consisting of a magnetic sensor and not only can reduce the manufacturing cost, but also because the door closing detection mechanism is configured only in the inner body, there is an effect of shortening the construction time when installed in the locker.

In addition, this design shortens the height and size of the inner body by arranging the power supply unit built into the inner body in parallel with the locker drive unit, thereby securing the inner space, especially when applying to the shoe storage box where the inner space is narrow, so that the lower end of the inner body is placed on the shoes. It can prevent contact.

1 is a perspective view showing a conventional digital locking device for locker.
Figure 2 is a schematic diagram showing the installation state of the door closing detection means in the conventional locker digital locking device.
Figure 3 is a cross-sectional view schematically showing a conventional digital locking device for locker.
Figure 4 is an inner front view of the inner body showing the digital locking device for the locker of the present invention.
Figure 5 is a perspective view showing a locker driving unit and a door closing detection mechanism in the digital locking device for the locker of the present invention.
Figures 6a and 6b is a perspective view showing the first and second idling members of the idling means in the digital locking device for the locker of the present invention.
Figures 7a and 7b is a state diagram of the operation of the idling means in the locker digital locking device of the present invention.
Figures 8a to 8c are the operation state of the door closing detection mechanism in the locker digital locking device of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail on the basis of the accompanying drawings. The digital locking device for locker of the present invention consists of an outer body fixedly installed on the outer surface of the door and an inner body fixedly installed on the inner surface of the door, and the configuration of the outer body is the same as in the prior art. Omit it.

Figure 4 is a front view showing the internal configuration of the inner body in the locker digital locking device of the present invention, Figure 5 is a perspective view showing the locking drive unit and the door closing detection mechanism in the locker digital lock device of the present invention, the inner body 110 ) In the door frame striker (S) and a locker 120 that is locked and released, a driving motor 140 and a power transmission mechanism 150 installed in the inner body 110 for operating the locker 120 It includes a rocker driving unit 130 made of.

The locker 120 is a locking position inserted into the locking hole S1 of the striker S inserted into the locking space 111 of the inner main body 110 at the door closed position and the unlocking withdrawn from the locking hole S1 It is intended to move between positions.

The power transmission mechanism 150 is a reduction gear group 151 installed between the driving motor 140 and the locker 120 to reduce the rotational force of the driving motor 140 and transmit it to the locker 120, and a reduction gear group 151 ) And the locker 120 is provided between the rotational force of the drive motor 140 is made of an idle means to prevent excessive action on the locker 120.

The idling means is provided with a first idling member 152 in the shape of a circular plate formed at one side of the locker 120. The center of the first idle member 152 is rotated within the inner body 110 so that the locker 120 can be rotated between the locked position and the unlocked position.

The first idle member 152 has an idle support surface 153 formed on the outer circumferential surface as shown in FIGS. 6A, 6B, 7A and 7B, and a second idle member on the idle support surface 153 The idling surface 155 formed on the inner circumferential surface of 154 is fitted to be rotated around the first idling member 152 and coaxially.

A plurality of grooves 156 are continuously formed in the circumferential direction on the idle surface 155 of the second idle member 154, and a gear portion 157 is formed on the outer circumferential surface.

In addition, the first idling member 152 has an operating groove (152a) formed in the radial direction, the locking member 158 is installed in the operating groove (152a) to the groove 156 of the second idling member (154). It is installed to be inserted and detachable, and an elastic member 159 is elastically installed between the first idle member 152 and the locking member 158 so that the locking member 158 is recessed 156 of the second idle member 154 ) Is designed to give elasticity in the direction of insertion.

At this time, as illustrated in this embodiment, the groove 156 formed on the idle surface 155 of the second idle member 154 has an arc shape, and the locking member 158 matches the arc shape and can be inserted. It is preferable that the elastic member 159 is a compression coil spring having one end supported by the first idle member 152 and the other end supported by the locking member 158.

The reduction gear group 151 is for transmitting the rotational force of the driving motor 140 to the gear unit 157 of the second idle member 154, and combines several gears having different diameters to reduce the rotational force of the driving motor 140. It is designed to reduce the number of rotations and transmit it to the gear unit 157 of the second idle member 154.

The reduction gear group 151 in this embodiment is a configuration in which a plurality of spur gears having a large and small diameter including a worm gear and a worm wheel are meshed, but is not limited thereto, and the number of rotations of the driving motor 140 If it is a combination of gears that can be transmitted to the gear unit 157 of the second idle member 154 by reducing it, it is fine.

Referring back to Figures 4 and 5, the present invention is provided with a door closing detection mechanism 160 for operating the locker driving unit 130 by sensing the closed state of the door in the inner body 110.

The door closing detection mechanism 160 is a lever member 161 that is rotatably installed on the inner body 110 about one shaft 162 and is pressed and rotated by a striker S of the door frame at the door closed position, and the It is installed on the inner body 110 and includes a tact switch 163 for driving the driving motor 140.

In addition, the inner body 110 is provided with a slide member 164 that moves linearly in connection with the rotational motion of the lever member 161, and the linkage structure between the lever member 161 and the slide member 164 is a lever member ( A pinion gear portion 161a may be formed on 161 and a rack gear portion 164a engaged with the pinion gear portion 161a may be formed on the slide member 164.

As shown in FIG. 8A, the slide member 164 is set to move linearly between a standby position spaced apart from the tact switch 163 and a switch operation position for operating the tact switch 163, and the tact switch 163 A first spring 165 is elastically installed between the slide member 164 and the slide member 164 to provide an elastic force in the direction in which it moves to the standby position. The first spring 165 is preferably composed of a compression coil spring.

Therefore, when the striker S of the door frame presses the lever member 161 and rotates it around the one axis 162 in the door closed position, the slide member 164 moves linearly and the button 163a of the tact switch 163 And the control unit (not shown) connected to the tact switch 163 recognizes this and drives the locker driving unit 130 so that the locker 120 is inserted into the locking hole S1 of the striker S, so that the door is automatically Can be locked with.

In this case, when a micro switch having a small size is applied as the tact switch 163, the operation stroke of the button 163a is typically only 0.2 mm. Therefore, the distance for pressing the button 163a of the tact switch 163 must be accurately set to 0.2mm according to the linear movement distance of the slide member 164.

However, since it is difficult to accurately maintain the pressing distance of the button 163a of the tact switch 163 due to an error in manufacturing and assembling the component, when the pressing distance is longer than 0.2 mm, the button 163a of the tact switch 163 Excessive pressing force may be applied to and damaged. Conversely, if it is shorter than 0.2mm, the button 163a of the tact switch 163 is not accurately operated, and there is a risk of causing a malfunction.

In view of this, the present invention installs a second spring 166 having an outer diameter smaller than that of the first spring 165 between the slide member 164 and the button 163a of the tact switch 163, and the second spring 166 ) By operating the button 163a of the tact switch 163 with the elastic force of ), it can be configured so that it can be accurately operated without damage or malfunction in response to the minute stroke of the button 163a.

In addition, the present invention is provided with a power supply unit 121 for supplying power to the driving motor 140 in the inner body 110, as shown in Figure 4, the power supply unit 121 is a rocker driving unit in the inner body 110 It is configured to shorten the height size of the inner body 110 by arranging it in parallel with 130 in the horizontal direction.

When explaining the operation of the present invention made of such a configuration as follows. When the door of the locker is closed as shown in FIGS. 4 and 5, the driving motor 140 is driven, and the rotational force of the driving motor 140 is decelerated through the reduction gear group 151 and the second idle member of the idler means ( 154).

At this time, the locking member 158 installed in the second idle member 154 as shown in FIG. 7A is in a state inserted into the groove 156 by the elastic force of the elastic member 159, so the rotation force of the second idle member 154 The first and second idle members 152 and 154 are transmitted to the first idle member 152 to rotate together, whereby the locker 120 moves to the locked position (position in FIG. 4) and the locking hole of the striker S By being inserted into (S1), the door can be locked.

Subsequently, a position sensor (not shown) detects the locked position of the locker 120 to stop the driving of the driving motor 140, but since the driving motor 140 cannot be stopped immediately, the locker 120 The second idle member 154 that receives the rotational force through the reduction gear group 151 of the power transmission mechanism 150 continues to rotate because it proceeds further than the stop position and hits the inner body 110 and cannot move any more. , Since the first idle member 152 on the side of the locker 120 can no longer rotate, the locking member 158 is separated from the groove 156 as the elastic member 159 is compressed as shown in FIG. 7B. The idling member 154 rotates and the first idling member 152 can maintain a stationary state.

Due to this, since excessive rotational force of the driving motor 140 is not transmitted to the first idle member 152 due to the idle rotation of the second idle member 154, the locker 120 is no longer pressed to the inner body 110 It does not move to, and since the reduction gear group 151 rotates smoothly, problems such as damage to the teeth of the interconnected gears or bending of the rotating shaft for supporting the rotation of the gears do not occur.

In addition, since the locker 120 is not pressed against the inner body 110, there is no fear that a load will be applied to the driving motor 140 when the locker 120 moves in the opposite direction to prevent current consumption, thereby preventing the battery life of the power supply unit 121 Can be maintained.

On the other hand, according to the door closing detection mechanism 160 of the present invention as shown in Figures 4 and 5, when the striker (S) of the door frame is inserted into the locking space 111 of the inner body 110 at the door closed position, Since the striker S pushes the lever member 161 as shown in FIG. 8A, the lever member 161 rotates about one axis 162 as shown in FIG. 8B.

Subsequently, the slide member 164 is moved toward the tact switch 163 (in the direction of the arrow) by the pinion gear portion 161a of the lever member 161 and the latch gear portion 164a of the slide member 164, and the first And the second springs 165 and 166 are compressed. At this time, since the second spring 166 is compressed and presses the button 163a of the tact switch 163 with a repulsive force by compression, a fine stroke of 0.2 mm is possible. Even after the button 163a is operated, the striker S pushes the lever member 161 to continue moving the slide member 164, but the second spring 166 is further compressed and the button 163a of the tact switch 163 Since the pressing force applied to is alleviated, it is possible to prevent the tact switch 163 from being damaged by excessive pressing force.

In this way, when the tact switch 163 is manipulated and the door closed state is detected, an operation signal is transmitted from the tact switch 163 to the control unit (not shown), and the control unit is the driving motor 140 of the locker driving unit 130 By driving, the automatic locking function as described above is performed.

In this way, the present invention controls the locker driving unit 130 by controlling the locker driving unit 130 by operating the lever member 161 and the slide member 164, which are the door closing detection mechanism 160, when the door is closed. As the function is performed, such a door closing detection mechanism 160 is performed by a mechanical configuration consisting of a tact switch 163, a lever member 161, and a slide member 164, and thus, a permanent magnet and a magnet having a high material cost. Compared to the conventional configuration made of a sensor, manufacturing cost can be reduced, and the hassle of construction in which a permanent magnet must be installed on the doors in the related art can be eliminated and construction time can be shortened.

In addition, the present invention can shorten the height size of the inner body 110 as the power supply unit 121 embedded in the inner body 110 is arranged in parallel at the horizontal position of the rocker driving unit 130, thereby reducing the inner space In the case of a narrow shoe storage box, it is possible to prevent the shoe from contacting the lower end of the inner body 110 by securing an inner space.

The embodiments described so far are merely describing preferred embodiments of the present invention, and the scope of the present invention is not limited to the described embodiments, and those skilled in the art within the technical spirit and claims of the present invention Various changes, modifications, or substitutions may be made by this, and such embodiments are to be understood as being within the scope of the present invention.

110: inner body 120: locker
121: power supply unit 130: locker drive unit
140: drive motor 150: power transmission mechanism
151: reduction gear group 152: first idle member
153: idle support surface 154: second idle member
155: idling surface 156: groove
157: gear unit 158: locking member
159: elastic member 160: door closing detection mechanism
162: uniaxial 161: lever member
163: tact switch 163a: button
164: slide member 165: first spring
166: second spring S: striker

Claims (3)

An inner body installed on the inner surface of the door, a locker installed in the inner body to be engaged with and released from the striker of the door frame, a locker driving unit installed in the inner body and composed of a driving motor and a power transmission mechanism for operating the locker; In the locker digital locking device comprising a power supply for supplying power to the driving motor of the locker driving unit,
The power transmission mechanism,
A first idle member having an idle support surface on an outer circumferential surface of the locker provided on one side and supported for rotation in the inner body;
A second idling member having an idling surface fitted outside the idling support surface of the first idling member to support rotation, a plurality of grooves formed continuously in the circumferential direction on the idling surface, and a gear portion formed on the outer circumferential surface;
A locking member installed in the first idle member to be inserted into and detached from the groove of the second idle member;
An elastic member that is elastically installed between the first idle member and the locking member to impart an elastic force in a direction in which the locking member is inserted into the groove of the second idle member;
A reduction gear group for transmitting the rotational force of the driving motor to a gear portion of the second idle member; And
It includes a door closing detection mechanism for operating the locker driving unit by sensing the closed state of the door in the inner body,
The door closing detection mechanism may include a lever member that is rotatably installed on the inner body about one axis and rotates by the striker of the door frame at the door closed position;
A tact switch installed on the inner body to drive the driving motor;
A slide member installed to be linearly movable on the inner body and linearly moving between a standby position spaced apart from the tact switch and a switch operation position for operating the tact switch in connection with the rotational motion of the lever member;
A first spring that is elastically installed between the slide member and the tact switch to provide an elastic force in a direction in which the slide member moves to a standby position; And
A digital locking device for a locker comprising a second spring installed between the slide member and the button of the tact switch to operate the button of the tact switch when the slide member moves to the switch operation position. delete The digital locking device according to claim 1, wherein the power supply unit is arranged in parallel with the locker driving unit in the inner main body in a horizontal direction to shorten the height of the inner main body.

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