KR101009082B1 - Structure for attaching and detaching of pin pad used in automatic teller maching - Google Patents

Abstract

The present invention provides a pin pad detachment structure of the automatic teller machine. A main body forming an appearance of the automated teller machine, an encryption pin pad installed on the main body to perform data encryption, a pin pad cover detachably coupled to the main body so that the encryption pin pad is detachably attached to the front side of the main body, and the Including the pin pad detachment means for restraining or releasing the pin pad cover with respect to the main body, the maintenance operation of the encryption pin pad can be easily performed on the outer front surface of the automated teller machine.

Encryption Pin Pad, Pin Pad Removal Device, Locking Device, Switchgear

Description

STRUCTURE FOR ATTACHING AND DETACHING OF PIN PAD USED IN AUTOMATIC TELLER MACHING}

The present invention relates to a pin pad detachable structure of a financial teller, and more particularly, to provide an encryption pin pad detachable structure of a teller machine that can be easily detached from the front of the main body of the teller machine.

In general, in a device that prevents unauthorized access and use, such as automated teller machines, passwords are assigned for each user so that only authorized users can operate the device normally. After entering the password, you can check if it matches the password registered in advance, and if it matches, you can proceed to the next step.

As described above, an encryption device for encrypting input data is coupled to a keypad for inputting a password in a financial automation device requiring a lot of security. As such an encryption device, an encryption pin pad device adopting a Data Encryption Standard (DES) algorithm is widely used. Types of DES pin pad devices include a bus type mounted in an input / output slot of a system, a serial type connected to a communication port of a system, and an EPP (Encryption Pin Pad) type integrated in a pin pad for password input.

In particular, in the case of an EEP type pin pad installed in an automated teller machine, the pin pad may be damaged by disassembling the inside of the EPP pinpad and stealing various information such as the card number of the person who used the teller machine. This exists.

In the case of maintaining the pin pad including the replacement of the damaged pin pad, there is a problem in that it is inconvenient to replace the pin pad in the case of the conventional automated teller machine. That is, the maintenance was very inconvenient because the pin pad was accessible only after opening the door provided at the rear of the automatic teller machine and removing various components such as a bill storage cassette.

In addition, in the case of a wall-type automated teller machine (Wall-Type ATM or Through the wall ATM) in which the main body of the automated teller machine is concealed inside a wall of a store or the like, enter the store where the automated teller machine is installed. Maintenance was inconvenient because the pin pad could be replaced after opening the rear maintenance door of the device and removing the internal components, and it also took a long time to replace the pin pad.

In addition, even when the pin pad is being repaired at the front or front of the automatic teller machine, the inconvenience of having to enter the rear of the automated teller machine directly to solve the locking system of the pin pad inside the automatic teller machine. there was.

The present invention has been made to solve the problems of the prior art as described above, the present invention is a pin pad of the automated teller machine that can easily replace the pin pad in the front of the automated teller machine without opening the rear door of the automated teller machine Provide a detachable structure.

In addition, the present invention provides a pin pad detachable structure of the automated teller machine equipped with an opening and closing device that can unlock the pin pad conveniently even if a person does not enter the inside of the automated teller machine.

In addition, the present invention provides a pin pad detachment structure of the automated teller machine equipped with a detachable pin pad that can maintain security by deleting stored data when the pin pad is abnormally replaced.

The present invention, in order to achieve the above object, the main body forming the appearance of the automated teller machine, an encryption pin pad installed on the main body to perform data encryption, so that the encryption pin pad is detachably mounted to the front side of the main body It provides a pin pad detachable structure of the automated teller machine including a pin pad cover detachably coupled to the main body and pin pad detachment means for restraining or releasing the pin pad cover with respect to the main body.

By configuring as described above, the encryption pin pad can be easily detached from the front and outside of the automated teller machine.

Here, a locking member may be formed on the inner surface of the pin pad cover to allow the pin pad cover to be restrained or released by the pin pad detaching means.

In addition, the pin pad detaching means may be configured to include an opening and closing device provided on one side of the main body, a wire connected to the opening and closing device and a locking device for sliding or locking the locking member by sliding by the wire.

On the other hand, the locking device is a guide member fixed to the inner surface of the main body, a locking bracket which is placed on the guide member and connected to the wire and restrains or releases the locking member and connects the guide member and the locking bracket to the locking It is preferable to include an elastic member for returning the locking bracket to the locked state after the release of the member. This is to return the locking bracket to the initial locking state without a separate operation after the connection state of the locking member and the locking bracket is released by one operation.

Here, the pin pad cover may be formed with a snap protrusion along a detachable direction, and the main body may be formed with a hole engaging with the snap protrusion. This makes it possible to further solidify the bonding state between the automatic teller machine body and the pin pad cover.

In addition, the pin pad cover may be provided to the main body in a state inclined downward toward the front of the main body, and may be separated from the main body by its own weight when the locking member is released. That is, the main body and the encryption pin pad module may be separated by gravity acting on the encryption pin pad module itself even if the connection state between the locking member of the encryption pin pad module and the locking bracket of the locking device is released. .

On the other hand, the opening and closing device is provided in the housing attached to the side of the main body, the housing, the operating rod is connected to one end of the wire, the opening and closing lever connected to one end of the operating rod and pulling the wire It may include a spring provided in the housing to elastically support. Here, the opening and closing device is preferably mounted on the maintenance door side provided on the main body side of the automatic teller machine.

In addition, the pin pad detaching means may further include a roller member mounted to the main body to maintain the tension of the wire or to change the direction of the wire.

On the other hand, the encryption pin pad may be assembled to the pin pad cover may be attached and detached with the pin pad cover. As a result, it is possible to reduce the trouble of having to remove the encryption fan pad and the pin pad cover separately.

As described above, the present invention can increase the convenience of maintenance because the encryption pin pad can be removed from the front and outside of the automated teller machine.

In addition, the present invention can reduce the operation time required for maintenance because it is not necessary to perform additional work to separate the encryption pin pad to be maintained from the main body of the ATM.

In addition, the present invention can maintain the security of the automated teller machine by deleting stored data when the pin pad is abnormally replaced.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the configuration and operation according to an embodiment of the present invention. The following description is one of several aspects of the patentable invention and the following description forms part of the detailed description of the invention.

However, in describing the present invention, a detailed description of known functions or configurations will be omitted for clarity of the gist of the present invention.

1 is a front view showing the main body of the automated teller machine according to an embodiment of the present invention, FIG. 2 is a perspective view of the main body of the automated teller machine according to FIG. 1, and FIG. Figure 4 is a perspective view showing a state provided with a pin pad, Figure 4 is a perspective view showing a state in which the encryption pin pad is separated from the main body according to FIG.

Referring to FIG. 1, the automated teller machine 1 according to an embodiment of the present invention includes a main body 101 forming an appearance, an advertisement display unit 102 provided on an upper portion of the main body 101 to show various advertisement images, Transaction history display unit 103 showing the transaction history to the user, deposit and withdrawal unit 104 for receiving bills, encryption pin pad 120 for encrypting the password entered by the user, and pin pad covering and protecting the encryption pin pad It may be configured to include a cover 130.

In more detail, the main body 101 of the automated teller machine according to an embodiment of the present invention includes a storage unit (not shown) for storing a paper medium, a withdrawal unit (not shown) for supplying a paper medium to the customer, and the storage. A transfer unit (not shown) and a computer (not shown) for transferring the requested paper medium from the unit to the withdrawal unit may be mounted. For convenience of description, FIG. 1 shows only an upper portion of the main body 101 of the automatic teller machine 100.

The encryption pin pad 120 and the pin pad cover 130 covering the encryption pin pad 120 according to an embodiment of the present invention are not provided horizontally with the ground on which the automated teller machine 100 is installed. It is preferably provided in a slightly inclined state toward the front lower side of 101).

2 to 4, pin pad detachment means for detaching the encryption pin pad 120 from the main body 101 is shown at the inner side of the main body 101.

Here, the pin pad detaching means is a locking device 160 and a sliding device sliding by the opening and closing device 140, wires 151 and 153 connected to the opening and closing device 140, wires 151 and 153 provided inside the side of the main body 101. And a locking member 131 that is locked or unlocked by the device 160 and connected to the encryption pin pad 120.

By configuring as described above, the encryption pin pad 120 can be easily replaced even outside the front surface of the main body 101 of the automated teller machine 100, thereby improving maintenance convenience.

Here, the opening and closing device 140 may be attached to the support bar 107 formed in the vicinity of the repair door (not shown) provided on one side of the main body 101. One end of the wires 151 and 153 is connected to the opening and closing device 140, and the other end of the wires 151 and 153 is connected to the locking device 160.

In this configuration, when the person who wants to remove the encryption pin pad 120 operates the switchgear 140, the wires 151 and 153 are pulled, and the tension is transmitted to the locking device 160 connected to the wires 151 and 153. Therefore, the restraint of the locking member 131 connected to the locking device 160 and the encryption pin pad 120 may be released, and the encryption pin pad 120 may be separated from the main body 101. For this reason, even if a person goes directly to the back of the main body 101 and does not remove various components, the restraint state of the encryption pin pad 120 can be cancelled. The relationship between the locking device 160 and the locking member 131 will be described later.

Meanwhile, the pin pad detaching means may further include a roller member 155 provided inside the main body 101 to maintain the tension of the wires 151 and 153 or to change the installation direction of the wires 151 and 153. By providing the roller member 155 in this way, the installation position of the opening and closing device 140 connected to the wires 151 and 153 can be determined more freely. If there is no roller member 155, the installation position of the opening and closing device 140 may be limited due to the interference between the internal components of the automatic teller machine 100 and the wires 151 and 153. It can be solved by using.

As shown in FIG. 2, two roller members 155 are provided on the wires 151 and 153. That is, the roller member 155 is formed in the position close to the locking device 160 and the position close to the opening and closing device 140, respectively. As a result, the transfer direction of the tension applied to the wires 151 and 153 can be easily changed, and the durability of the wires 151 and 153 can be improved by preventing interference between the wires 151 and 153 and various internal components.

In FIG. 2, reference numeral 108 denotes an encryption pin pad supporter. The encryption pin pad supporter 108 may be mounted on the main body 101 to support a lower portion of the encryption pin pad 120 to be detached and to hold the location of the encryption pin pad when the encryption pin pad supporter 108 is detached.

3 illustrates a state where the pin pad cover 130 is separated. That is, only the pin pad cover 130 is removed from the main body 101 for the purpose of explanation. Referring to FIG. 3, it can be seen that the encryption pin pad 120 is installed in the main body 101 while being embedded in the cover mounting unit 105 provided in the main body 101.

On the other hand, the cover mounting portion 105 of the main body 101 is formed with a plurality of holes, which is to secure the coupling between the cover mounting portion 105 and the pin pad cover 130. These holes are hooked in the corners of the first projection insertion hole 105a formed in the rear portion of the cover mounting portion 105, the second projection insertion hole 105b formed in front of the cover mounting portion 105 and the cover mounting portion 105. The member through hole 105c may be included.

Here, the first and second protrusion insertion holes 105a and 105b may be engaged with the snap protrusions of the pin pad cover 130 to be described later, thereby firmly coupling the main body 101 and the pin pad cover 130.

The encryption pin pad 120 is positioned at the center of the cover mount 105, and the encryption pin pad 120 is mounted to the pin pad cover 130 by the pin pad support bracket 122. Here, the locking member 131 and the pin pad support bracket 122 is actually a component to be mounted on the pin pad cover 130, but for convenience of description, it is found that the cover mounting portion 105 of the main body 101 is shown. Put it. The locking member 131 attached to the pin pad cover 130 is caught by the locking device 160 positioned behind the cover mounting unit 105 while passing through the locking member through hole 105c of the cover mounting unit 105.

Meanwhile, FIG. 4 illustrates a state in which the pin pad cover 130, the locking member 131, and the encryption pin pad 120 are all separated from the main body 101. Not only the encryption pin pad 120 may be detachable from the main body 101, but also the encryption pin pad 120, the pin pad cover 130, and the locking member 130 form one encryption pin pad module. It may be detached to, Figure 4 shows the appearance of the main body 101 is separated once the encryption pin pad module.

Hereinafter, the encryption pin pad 120 to the encryption pin pad module will be described with reference to the drawings.

FIG. 5A is a perspective view of the pin pad cover mounted on the main body according to FIG. 2 to which the encryption pin pad is attached and detached. FIG. 5B is a perspective view of the pin pad cover according to FIG. It is a side view which shows the pin pad cover.

Referring to FIG. 5A, the pin pad cover 130 is formed of a flat portion 130a covering an edge of the encryption pin pad 120 and a skirt portion 130b bent in front of the flat portion 130a. The encryption pin pad 120 is positioned at the center of the flat portion 130a, and security ribs 137 are provided at both sides of the encryption pin pad 120. The security rib 137 is to prevent other people from seeing the password entered by the user.

First snap protrusions 132 are formed at both rear ends of the planar portion 130a. The first snap protrusion 132 is engaged with the first protrusion insertion hole 105a of the cover mounting portion 105 described above to couple the pin pad cover 130 and the cover mounting portion 105.

Meanwhile, referring to FIG. 5B, the rear structure of the pin pad cover 130 may be better seen. A second snap protrusion 133 is formed on the rear surface of the skirt portion 130b, and the second snap protrusion 133 is inserted into the second protrusion insertion hole 105b of the cover mounting portion 105 to pin pin cover 130. And the cover mounting portion 105 maintain the coupling.

The locking member 131 is mounted on the front inner surface of the flat portion 130a of the pin pad cover 130, and a locking member mounting portion 136 for mounting the locking member 131 is formed on the inner surface of the flat portion 130a. have. That is, the locking member 131 is mounted on the inner surface of the pin pad cover 130 and is formed so as not to be exposed to the outside. The pin pad support bracket 122 is mounted to the pin pad cover 130 while supporting the lower portion of the encryption pin pad 120. The encryption pin pad 120 is directly attached to the pin pad cover 130 and the encryption pin pad 120 is mounted to the main body 101 via the pin pad cover 130, thereby removing the pin pad cover 130. It is possible to reduce the inconvenience of having to remove the encryption pin pad 120 again.

Here, the pin pad support bracket 125 has a connector portion 125, and a communication cable (not shown) connecting the encryption pin pad 120 and the host is connected to the connector portion 125.

When the encryption pin pad 120 is normally detached to repair or replace the encryption pin pad 120, the information on the encryption pin pad 120 is not deleted, but the encryption pin pad 120 is abnormal for the purpose of illegal hacking. Detaching the information stored in the encryption pin pad 120 is deleted. That is, when the communication cable connected to the connector unit 125 is forcibly disconnected, it is preferable to adopt a security algorithm that deletes the information stored in the encryption pin pad 120.

Meanwhile, as shown in FIG. 5B, the locking member 131 has a hook shape. Due to the shape of the hook, the mounting of the locking member 131 may be easy, but in order to separate, the locking member 131 should be released by a separate mechanism. More detailed locking mechanism of the locking member 131 will be described later.

5C shows a side view of the pin pad cover 130. As shown in FIG. 5C, the planar portion 130a is not formed horizontally, but may be inclined downward at a predetermined angle θ with respect to the horizontal line. As described above, since the pin pad cover 130 is provided to the main body 101 in a state inclined downward toward the front of the main body 101, when the restraint of the locking member 131 is released, the encryption pin pad 120 or the encryption is performed. The weight of the pin pad module may be separated from the main body 101 without a separate separating operation. That is, even if the connection state between the locking member 131 of the encryption pin pad module and the locking device 160 is released, the encryption pin pad module slides on the main body 101 by gravity acting on the encryption pin pad module itself even if no operation is performed. The pin pad module can be separated.

A bracket mounting part 138 for fixing the pin pad support bracket 122 is protruded from the rear surface of the flat part 130a.

Hereinafter, the locking device 160 and the opening and closing device 140 will be described with reference to the drawings. Figure 6a is a perspective view showing a locking device for removing the encryption pin pad according to Figure 3, Figure 6b is a perspective view showing a sliding state of the locking bracket of the locking device according to Figure 3, Figure 7a locking according to Figure 6a 7B is a perspective view showing the locking bracket of the locking device according to FIG. 6A, and FIG. 8 is a perspective view showing the opening and closing device for operating the locking device according to FIG.

First, as shown in FIG. 6A, the locking device 160 is placed on the guide member 161 and the guide member 161 which are mounted and fixed to the inner surface or the rear surface of the main body 101, and is connected to the wires 151 and 153 to encrypt the pins. It may include a locking bracket 163 for restraining or releasing the locking member 131 of the pad module and an elastic member 165 for connecting the guide member 161 and the locking bracket 163.

The encryption pin pad 120 to the encryption pin by restricting or releasing the connection state of the locking bracket 163 constituting the locking device 160 and the locking member 131 connected to the encryption pin pad 120 to the encryption pin pad module. The pad module can be easily removed.

6A illustrates the locking member 131 and the locking device 160 of the encryption pin pad module for convenience of description. The guide member 161 of the locking device 160 is a member for guiding the sliding movement of the locking bracket 163, and the guide member 161 is the main body 101 by the mounting brackets 167 provided at both ends thereof, and precisely the cover. It is fixed to the inner rear of the mounting portion 105 (see FIG. 2).

One end of the locking bracket 163 is connected to the wires 151 and 153 drawn by the opening and closing device 140 and the other end is connected to the guide member 161 by the elastic member 165. When the wires 151 and 153 are pulled by the opening and closing device 140, the locking bracket 163 moves along the direction OD to release the restraint of the locking member 131 and the locking bracket 163.

That is, when the wires 151 and 153 are pulled, the locking bracket 163 is moved as shown in FIG. 6B, and the locking member 131 is in a state in which the locking bracket 163 can be pulled out. That is, the hook portion of the locking member 131 is in a state in which it can be pulled out without being caught by the locking bracket 163. At this time, the elastic member 165 is in an extended state by the locking bracket 163.

When the tension applied to the wires 151 and 153 after the locking member 131 is removed from the locking bracket 163 is removed, the locking bracket 163 is in an initial state, that is, a locked state by the elastic restoring force of the elastic member 165. Is returned. In the returning process of the locking bracket 163, when the locking bracket 163 is pulled too much by the elastic member 165, since the locking member 131 may not be fitted later, the guide member 161 may be prevented. The engaging jaw 161a is bent. Since the movement of the locking bracket 163 is limited by the locking step 161a, the locking bracket 163 may always return to the initial locked state constantly.

7A shows a guide member 161. Guide member 161 is formed to a predetermined length, the cross section has a substantially "C" shape. Bending parts 161b having both ends bent along the width direction are formed, and connecting parts 161d for mounting the mounting bracket 167 are formed at both ends in the longitudinal direction.

A locking member accommodating portion 161c into which two locking members 131 are inserted is formed at the bent portion 161b adjacent to the rear inner surface of the main body 101. Since the engaging member accommodating part 161c is formed larger than the engaging member 131, the engaging member 131 is not restricted by the engaging member accommodating part 161c. The locking member 131 is restrained by a mutual relationship between the locking bracket 163 and the guide member 161 which will be described later.

7B, the locking bracket 163 shown in FIG. 7B includes a sliding portion 163a sliding on the guide member 161 and a bent portion 163b bent along the width direction of the sliding portion 163a, and the lengthwise direction. One end of the elastic member connecting portion 163c is provided and the other end is provided with a wire connecting portion (163d).

On the other hand, two locking portions 163e are formed at the bent portions of the locking bracket 163 in contact with the bent portions 161b of the guide member 161 on which the catching member accommodating portions 161c are formed. Here, the locking member 131 is restrained or released by the relative movement of the locking member accommodating part 161c and the locking part 163e.

That is, in the initial locking state in which the wires 151 and 153 are not pulled, the locking member accommodating part 161c and the locking part 163e are positioned to overlap each other, so that the opened part is smaller than the locking member 131. However, since the locking member 131 is shaped like an arrowhead, when the locking member 131 is pushed into the opened portion, the locking bracket 163 may be pushed a little while the locking member 131 may enter. After the locking member 131 is completely entered, since the locking bracket 163 returns to the initial locked state by the elastic member 165, the locking member 131 is not caught by the locking bracket 163.

When the wires 151 and 153 are pulled to release the locking member 131, the locking bracket 163 moves and the locking member accommodating part 161c and the locking part 163e completely overlap each other (see FIG. 6B). In this case, the opened portion is larger than the arrowhead shape of the locking member 131. In this state, the locking member 131 can be easily removed from the locking bracket 163.

On the other hand, the opening and closing device 140 is shown in FIG. The opening and closing device 140 of the pin pad detaching means according to an embodiment of the present invention is provided in the housing 141 and the housing 141 which are attached to the side of the main body 101, and the wires 151 and 153 are connected to one end thereof. It comprises a rod 143, an opening and closing lever 145 connected to one end of the operating rod 143, pulling the wires 151, 153 and a spring 147 provided in the housing 141 to elastically support the operating rod 143 Can be. Opening and closing device 140 is preferably mounted on the side of the maintenance door (not shown) provided on the main body 101 side of the automated teller machine (100).

Housing 141 has a fastening member mounting hole (141a) for mounting in the upper and lower parts, the operating rod 143 is provided in the longitudinal direction therein. The opening and closing lever 145 connected to one end of the operating rod 143 operates to pull the wires 151 and 153 connected to the other end of the operating rod 143. On the front surface of the housing 141, a locking portion 141b for determining the locking position of the locking bracket 163 and a release portion 141c for determining the release position are formed by positioning the opening / closing lever 145.

First, when the opening and closing lever 145 is in the locking portion 141b, since no force is applied to the wires 151 and 153, the locking bracket 163 is in the initial locking state, and in this state, the locking member 131 is locked. It does not fall out of the bracket 163.

When a person moves the open / close lever 145 to the release portion 141c (see the dotted line in FIG. 8), the wires 151 and 153 are pulled because the operation rod 143 moves upward. Accordingly, the locking bracket 163 is also moved, so that the locking member 131 can be removed from the locking bracket 163. Simply turn the opening and closing lever 145 in the release part 141c and the opening and closing lever 145 is positioned as the locking part 141b by the spring 147, and the locking bracket 163 is in the first locked state again. Will be in.

By operating one opening and closing device 140 by the pin pad detaching means as described above, the two locking members 131 can be simultaneously restrained or released.

When the encryption pin pad 120 and the pin pad cover 130 are detached from each other, the locking member 131 mounted on the pin pad cover 130 may be referred to as a component of the pin pad detaching means. When the 120 and the pin pad cover 130 constitute one module and are detached at once, the locking member 131 may be referred to as one component of the encryption pin pad module.

By the pin pad detachment means as described above, the encryption pin pad may be easily detached from the front surface of the main body, or the encryption pin pad and the pin pad cover directly attached to the encryption pin pad may be detached at a time.

The pin pad desorption structure of the automated teller machine described so far should be understood as the technical idea of the present invention or the minimum description of the present invention, which can be grasped from various viewpoints, and should not be understood as the boundary limiting the present invention.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope of the claims.

1 is a front view showing a main body of an automatic teller machine according to an embodiment of the present invention;

Figure 2 is a perspective view looking up the main body rear of the automatic teller machine according to Figure 1,

3 is a perspective view illustrating a state in which an encryption pin pad is provided in a main body according to FIG. 2;

4 is a perspective view illustrating a state in which an encryption pin pad is separated from the main body according to FIG. 2;

Figure 5a is a perspective view from the front down the pin pad cover equipped with an encryption pin pad detachable to the main body according to Figure 2,

5B is a perspective view of the pin pad cover according to FIG. 5A, viewed from the rear;

5C is a side view of the pin pad cover according to FIG. 5A;

Figure 6a is a perspective view showing a locking device for removing the encryption pin pad according to FIG.

Figure 6b is a perspective view showing a sliding state of the locking bracket of the locking device according to Figure 3,

Figure 7a is a perspective view showing a guide member of the locking device according to Figure 6a,

Figure 7b is a perspective view showing a locking bracket of the locking device according to Figure 6a,

8 is a perspective view illustrating an opening and closing device for operating the locking device according to FIG. 6.

<Explanation of symbols for the main parts of the drawings>

100: automatic teller machine 101: main body

120: Encryption pin pad 130: Pin pad cover

131: locking member 132,133: snap projection

140: opening and closing device 143: operating rod

145: opening and closing lever 151,153: wire

160: locking device 161: guide member

163: locking bracket

Claims (9)

A main body forming an appearance of the automatic teller machine; An encryption pin pad installed in the main body to perform data encryption; A pin pad cover detachably coupled to the main body such that the encryption pin pad is detachably attached to the front side of the main body; And Pin pad detachment means for restraining or releasing the pin pad cover with respect to the main body; Pin pad removable structure of the automatic teller machine comprising a. The method of claim 1, Pin pad detachable structure of the automated teller machine, characterized in that the inner surface of the pin pad cover is formed with a locking member for restraining or releasing the pin pad cover to the main body by the pin pad detaching means. The method of claim 2, The pin pad detachment means, And a locking device provided on one side of the main body, a wire connected to the opening and closing device, and a locking device sliding by the wire and locking or releasing the locking member. The method of claim 3, The locking device A guide member fixed to an inner surface of the main body, a locking bracket placed on the guide member and connected to the wire to restrain or release the locking member, and to connect the guide member and the locking bracket to the locking member after the locking member is released; Pin pad detachable structure of the automated teller machine, characterized in that it comprises an elastic member for returning the bracket to the locked state. The method of claim 3, The pin pad cover has a snap protrusion formed along a detachable direction, and the body has a pin pad detachable structure of the automated teller machine, characterized in that a hole engaging with the snap protrusion is formed. The method of claim 3, The pin pad cover is provided in the main body inclined downward toward the front of the main body, the pin pad detachable structure of the automated teller machine, characterized in that separated from the main body by its own weight when the engaging member is released. The method according to any one of claims 3 to 6, The opening and closing device is A housing attached to the side of the main body, an actuating rod provided to the housing, one end of which is connected to the wire, an actuating lever connected to one end of the actuating rod to pull the wire, and an actuating rod to elastically support the actuating rod; Pin pad detachable structure of the automated teller machine, characterized in that it comprises a spring provided. The method of claim 7, wherein The pin pad detachment means further comprises a roller member mounted to the main body to maintain the tension of the wire or to change the direction of the wire. The method according to any one of claims 1 to 6, The encryption pin pad, The pin pad detachable structure of the automated teller machine, characterized in that is assembled to the pin pad cover and detachable with the pin pad cover.

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