KR101038483B1 - Pointing device - Google Patents

Abstract

In order to improve the durability and operability of the product, the present invention is provided with a space accommodated therein, the cover member formed through the movement hole on the upper surface side; A moving member accommodated with an outer portion spaced apart from the inner side of the cover member, and having a working protrusion protruding through the moving hole on the upper surface thereof and an operating magnet moved horizontally integrally with the working protrusion at a lower end thereof; The magnetic force is disposed on the lower side of the moving member, and the magnetic force is applied to the operating magnet so as to maintain a restraint force applied to the horizontal movement and restoration of the movable member by being horizontally inserted into a mounting hole formed through the lower side of the operating magnet. Fixing member provided with a restraining magnet; And a substrate member disposed below the fixing member, the substrate member including a sensor unit detecting a horizontal movement of the operating magnet and outputting the electrical signal as an electrical signal.

Pointing device, working magnet, restraint magnet

Description

Pointing device

The present invention relates to a pointing device, and more particularly, to a pointing device which is used in an input device of an electronic device such as a mobile phone and which significantly improves durability and operability of a product.

In general, the pointing device refers to an input device used in electronic devices such as a mouse, a touch pad, a mobile phone, and the like, to control a movement of a pointer on a screen according to a user's operation, thereby enabling a GUI (Graphic User Interface) method. .

Among the pointing devices, an input device for controlling the movement of a pointer on the screen by detecting a two-dimensional movement of the magnet by using a magnetic sensor that detects the direction and strength of the magnet has been recently used.

In addition, various techniques for moving and restoring a magnet have been disclosed.

Specifically, one disclosed in Patent Publication No. 10-2004-002918 includes a silicone resin such as rubber provided on a substrate, a magnet disposed on the silicone resin, and a sensor attached to a lower portion of the substrate.

Therefore, the structure which can move the said magnet by the external force deformation and circular restoring force of the said silicone resin is disclosed.

The other is disclosed in Patent Publication No. 10-2009-0088770 and includes a plastic member provided on a substrate, a magnet disposed on the media member, and a sensor attached to the substrate.

Therefore, the structure which can move the said magnet by the external force deformation and the elastic restoring force of the said medial member is disclosed.

However, using a component such as a silicone resin or a plastic media member having elastic force to move the magnet is required to use a part of a certain size or more in order to secure the elastic force for a certain distance movement of the magnet, and the problem of miniaturization of electronic devices There was a problem that the life is short due to wear or damage to parts due to frequent contact with continuous use.

In addition, the silicone resin has a problem that the operating feeling is reduced to a dull feeling when deteriorated, and the media member of the plastic material is difficult to adjust the operating feeling for easy operation of the user.

In order to solve the above problems, the present invention prevents wear or damage due to contact by the horizontal movement and restoration of the operating magnet by the magnetic force of the restraint magnet and facilitates the adjustment of the horizontal movement of the operating magnet to provide a smooth feeling of operation. It is an object of the present invention to provide a pointing device that significantly improves the durability and operability of the product.

In order to solve the above problems, the present invention is provided with a space accommodated therein, the cover member formed through the moving hole on one side of the upper surface; A moving member accommodated with an outer portion spaced apart from the inner side of the cover member, and having a working protrusion protruding through the moving hole on the upper surface thereof and an operating magnet moved horizontally integrally with the working protrusion at a lower end thereof; The magnetic force is disposed on the lower side of the moving member, and the magnetic force is applied to the operating magnet so as to maintain a restraint force applied to the horizontal movement and restoration of the movable member by being horizontally inserted into a mounting hole formed through the lower side of the operating magnet. Fixing member provided with a restraining magnet; And a substrate member disposed below the fixing member, the substrate member including a sensor unit detecting a horizontal movement of the operating magnet and outputting the electrical signal as an electrical signal.

Here, the constrained magnet is preferably disposed on the inner side of the plurality of magnetic sensors provided in the sensor portion circumferentially and the bottom surface is elastically supported by the elastic dome protruding from the upper surface of the substrate member. In addition, the elastic dome is preferably operated dome switch to generate an electrical signal in contact with the switch contact is concave elastically deformed in accordance with the downward movement of the restraint magnet. Further, it is preferable that any one surface of the movable member and the fixed member provided with a sliding member attached to alleviate contact friction while maintaining magnetic forces of the operating magnet and the restraining magnet. And, the outer side of the restraint magnet is preferably further provided with a plurality of magnetic induction medium arranged in pairs so as to face in the circumferential direction to increase the strength of the magnetic field is magnetized in accordance with the horizontal movement of the operating magnet.

Through the above solution, the present invention provides the following effects.

First, the present invention is provided with a restraint magnet disposed to move and restore the operation magnet for magnetic detection by the restraint force by the magnetic attraction, thereby essentially eliminating wear or damage caused by deformation of the component for providing the existing elastic force Not only does it significantly improve the durability of the product, but it also gives the user confidence with the same feeling of operation even after long use.

Second, by adjusting the magnetic force between the operating magnet and the restraint magnet can be easily operated by adjusting the operability of the moving member can be significantly improved the user's operation convenience.

Third, the constrained magnet is placed inside a plurality of magnetic sensors so as not to affect the magnetic detection, and is elastically supported by the elastic dome so that the small constrained magnet corresponding to the working magnet can be combined with the function of the dome switch. It can be made compact and slim.

Fourth, by providing a sliding member or a gap between the operating magnet and the restraint magnet to alleviate contact friction between each other, the mobility is improved while in close contact with each other, the durability and the operation feeling can be further improved according to the contact between the parts.

Hereinafter, a pointing device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a pointing device according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing a pointing device according to an embodiment of the present invention.

1 and 2, the pointing device 10 according to the preferred embodiment of the present invention includes a cover member 1, a moving member 2, a fixing member 3, and a substrate member 4. Is done.

In detail, the cover member 1 has a space that can be accommodated therein, and a moving hole 111 and a sensor mounting hole 121 penetrate through upper and lower surfaces, respectively.

Here, the cover member 1 is preferably made of a cylindrical shape combined with the upper case 11 and the lower bracket 12, the moving member 2, the fixing member 3 and the substrate member 4 therein. Is assembled and installed.

In addition, the upper case 11 has a moving hole formed to be spaced apart from the outermost portion of the operating protrusion 21 at a predetermined interval so that the operating protrusion 21 is protruded through the movement in the horizontal direction in the circumferential direction. 111 is provided.

At this time, the upper surface of the upper case 11 is formed in the circumferential direction and at the same time the inclined cross section from the outermost portion of the upper case 11 to the moving hole 111 for the slimming structure and the operation protrusion 21 The upper end of the upper case 11 is preferably made of a height almost corresponding to the upper end.

Accordingly, the user can move the operation protrusion 21 protruding inside the inclined inclined surface of the upper case 11 in the circumferential horizontal direction.

In addition, the outer circumference of the upper case 11 is preferably formed a plurality of first coupling portion 112 is formed with a coupling protrusion (112a), the first coupling portion 112 protrudes on the lower bracket 12 It is preferable that the cover member 1 is coupled by fitting the coupling protrusion 112a to the coupling groove 122a while facing the plurality of second coupling portions 122. Of course, the combination of the upper case and the lower bracket can be combined in various ways without being limited thereto.

At this time, it is preferable that a plurality of fixing grooves 113 are formed at the lower end of the upper case 11 outer periphery border, and the fixing grooves 113 protrude to the outer circumference of the fixing member 3. By fitting to the upper case 11 and the lower bracket 12 can be fixed to the fixing member 3 at the same time.

Furthermore, a fitting groove 114 to be joined to one side of the substrate member 4 is preferably formed at one side of the lower end portion of the outer circumferential edge of the upper case 11, and one side of the substrate member 4 is formed in the matching groove 114. The upper case 11 can fix the substrate member 4 by the matching.

In addition, a sensor mounting hole 121 is formed inside the lower bracket 12, and the sensor mounting hole 121 corresponds to an outer shape of a plurality of sensing holes 32 formed through the fixing member 3. It is preferably made in the shape. A magnetic sensor (see 45a of FIG. 5) is provided in the sensor mounting hole 121, and a sensor unit 45 disposed on a bottom surface of the substrate member 4 is coupled.

In addition, a plurality of restraining protrusions 123 are formed on an upper surface of the lower bracket 12, and the restraining protrusions 123 are coupled to the restraining grooves 43 of the substrate member 4. Guide the coupling direction and stably fix the substrate member (4).

As such, the moving member 2, the fixing member 3, and the substrate member 4 are sequentially disposed and assembled between the upper case 11 and the lower bracket inside the cover member 1. do. Here, all the parts including the cover member 1 is preferably made of a synthetic resin material.

On the other hand, the outer side of the moving member 2 is accommodated inside the cover member 1 is spaced apart, the moving member 2 and the operating projection 21 protruding through the moving hole 111 on the upper surface; An operating magnet 22 which is horizontally moved integrally with the operation protrusion 21 is provided at the lower end.

Here, the moving member (2) extends circumferentially from the lower end of the actuating protrusion 21 and the actuating protrusion 21 protruding in a cylindrical shape on the upper surface (the body is supported on the upper surface of the cover member 11 ( 23) is preferably included.

In addition, the operator seat 22 is inserted into and fixed to the mounting groove 24 formed at one side of the bottom surface of the movable member 2, wherein the bottom surface of the operator magnet 22 and the bottom surface of the movable member 2 are the same surface. It is desirable to achieve.

Here, the operating magnet 22 and the restraint magnet 32 is preferably provided with a thin cylindrical magnet corresponding to each other, but is not limited to this shape, but also provided as a polygon having a face facing in the vertical direction. It is possible. Moreover, the working magnet 22 and the restraint magnet 32 is preferably made of a permanent magnet.

In addition, the moving member 2 has a cross-sectional cap shape, preferably moved within the range defined in the horizontal direction from the inside of the cover member 1, in this case, the actuating projection 21 is also in the moving hole 111 It is preferable to move the distance corresponding to the moving distance of the moving member 2 within the range defined by. The moving distance of the movable member 2 and the actuating protrusion 21 determines the width of the surface of the operator magnet 22 and the restraint magnet 32 maintained in contact with each other.

Therefore, the distance from which the actuating protrusion 21 is circumferentially spaced from the moving hole 111 is preferably made to correspond to the distance of the body 23 circumferentially spaced from the inner surface of the cover member 1. Do.

On the other hand, there is provided a fixing member 3 disposed below the moving member 2, the fixing member 3 is inserted into the mounting hole 34 formed through the lower side of the operating magnet 22 to be fixed horizontally Constraints magnet 32 is provided to provide a magnetic attraction to the operating magnet 22 to maintain the restraining force acting on the horizontal movement and restoration of the moving member (2).

Here, the magnetic sensor of the substrate member 4 (see 45a in FIG. 5) of the magnetic sensor may easily detect a change in magnetic flux density due to the movement of the operating magnet 22 in the inner portion of the fixing member 3. A sensing hole 32 is formed to penetrate to face the position.

In addition, in order to maintain the constraint force according to the horizontal movement of the operating magnet 22, the operating magnet 22 and the restraint magnet 32 is preferably arranged to have the same polarity in the vertical direction, the moving member (2) ) Is preferably arranged so that the overlapping portions are staggered even when the horizontal movement of the cover member is held in the horizontal direction.

That is, the operating magnet 22 is preferably moved within the range in which the contact with the restraint magnet 32 is maintained.

Accordingly, the moving and restoring of the moving member 2 is performed under the restraint force by the magnetic attraction of the operating magnet 22 and the moving magnet 32.

Through this, not only movement and restoration by wearable or damaging mechanical elastic parts but also movement and restoration by magnetic attraction acting in the same manner without being damaged even for long time use may not only last a long life but also maintain a feeling of operation.

On the other hand, the sliding member attached to any one surface of the movable member 2 and the fixing member 3 to maintain the magnetic force while alleviating the contact friction force of the operating magnet 22 and the restraint magnet 32 ( It is preferable that 5) is further provided.

Here, the sliding member 5 is preferably made of a thin plate-like shape of a synthetic resin material such as Teflon having a low coefficient of friction characteristics. This is actually to attach a tape made of Teflon.

In addition, the sliding member 5 is disposed in contact between the operating magnet 22 and the restraint magnet 32 to reduce the coefficient of friction caused by the movement of the operating magnet 22, the moving member 2 is It can slide smoothly.

In addition, the operation magnet 22 is also attached to the lower surface of the moving member 2 by bonding or the like also serves to fix the operation magnet 22 in the vertical direction.

Of course, the friction relaxation configuration of the operating magnet 22 and the restraint magnet 32 is not limited to the above-described configuration, it is also configured to have a gap between the operating magnet and the restraint magnet spaced at a predetermined gap. It is possible.

Thus, the sliding member 5 serves as a lubricant for mitigating frictional force due to direct contact between the magnets.

Through this, the movement of the operating magnet 22, which is in contact with the restraint magnet 32 by the movement of the moving member 2 is smooth and soft, the operation feeling is improved and the user's operation feeling can be remarkably improved.

In addition, since the operation of the movable member 2 is possible without using a relatively excessive force for deforming the existing silicon or plastic material, the user's light operation is possible and the convenience of operation can be significantly improved.

As described above, the present invention includes a sliding member 5 or a gap of the air layer due to the spaced-apart arrangement between the operating magnet 22 and the constraining magnet 32 to alleviate the contact friction force between them.

Through this, the operating magnet 22 and the constrained magnet 32 is stably in close contact with each other, so that mobility is improved by smooth movement, and durability as well as ease of operation due to relaxation of contact between parts can be further improved.

On the other hand, the substrate member 4 is disposed below the fixing member 3, the substrate member 4 is a sensor unit 45 for detecting the horizontal movement of the operating magnet 21 and outputs it as an electrical signal It is provided.

Here, the substrate member 4 refers to a substrate such as a flexible printed circuit board (FPCB), which is opposed to the sensing hole 31 on the substrate body 41 and the lower surface of the substrate body 41. A sensor unit 45 having a plurality of magnetic sensors (see 45a of FIG. 5) disposed thereon and an elastic dome 42 protruding in a cylindrical shape on the upper surface of the substrate body 41 and detected from the substrate body 41 may be used. It is preferable to include a signal output section 44 connected to output a signal.

On the other hand, the constrained magnet 32 is fixed to the inner side of the plurality of magnetic sensors (see 45a of FIG. 5) provided in the sensor portion 45 in a circumferential direction and the bottom surface protrudes on the upper surface of the substrate member 4 It is preferable that the elastic dome 42 is elastically supported.

In addition, the elastic dome 42 is preferably a dome switch is operated to generate an electrical signal in contact with the switch contact is concave elastically deformed in accordance with the downward movement of the restraint magnet (32).

In detail, the restraint magnet 32 is coupled to the mounting hole 34 so as to be movable. In this case, the bottom surface of the actuating magnet 22 is provided on the same plane as the bottom surface of the movable member 2 and the restraint magnet. 32 protrudes in contact with the operator magnet 22 in a direction opposite thereto. Accordingly, a gap between the movable member 2 and the stationary member 3 is formed for the movement of the movable member 2.

In addition, referring to FIG. 5 partially, the magnetic sensor 45a is disposed outside the operating magnet 22 and preferably comprises a Hall sensor that generates a predetermined signal when a magnetic field in the vertical direction is applied. The restraint magnet 32, which is an inner part of the magnetic sensor 45a and is fixedly disposed below the operating magnet 22, does not affect magnetic detection.

And, The elastic dome 42 is the lower end is always in contact with the fixed contact and the protruding upper end is located above the switch contact. Accordingly, when the user pushes the actuating protrusion 21 toward the substrate member 4, the elastic dome 42 protrudes in accordance with the downward movement of the restraint magnet 32 in contact with the actuating magnet 22. When the upper end portion is pressed, the upper end portion is concave and elastically deformed to come into contact with the switch contact, and the ON state is removed. When the force is removed, the upper end portion of the elastic dome 42 is returned to its original state to generate a signal that becomes OFF.

As such, the restraint magnet 32 and the elastic dome 42 are sequentially disposed at the lower side of the operating magnet 22, and a plurality of magnetic sensors are disposed around the lower side of the elastic dome 42 (see 45a of FIG. 5). It consists of a compact configuration in which it is arranged.

Therefore, the restraint magnet 32 can drive the dome switch by the shangdong while the restraint force is applied by the magnetic attraction that does not affect the magnetic detection.

Through this, the small constrained magnet 32 corresponding to the operating magnet 22 can be manufactured in a more compact and slimmer configuration with a more compact assembly configuration in parallel with the dome switch function.

Moreover, despite frequent horizontal movement of the operating magnet 22 due to long use, the actuating protrusion 21 and the constraining magnet 32 are moved together by magnetic attraction so that the dome switch drive is stable and the dome between the existing parts Switch operation is frequently caused by wear or damage Unlike failures, it has excellent durability and excellent performance.

Hereinafter, with reference to the accompanying drawings will be described the operation and operation effects of the pointing device according to an embodiment of the present invention.

On the other hand, Figure 3 is a cross-sectional view showing a pointing device according to an embodiment of the present invention, Figure 4 is a cross-sectional view showing an operating state of the pointing device according to an embodiment of the present invention.

3 and 4, when the user manipulates the operation protrusion 21 with the fingertips to move the pointer on the screen to a desired position, the operation protrusion 21 is slidably moved in the horizontal direction in the circumferential direction. The sensor unit 45 detects the movement distance of the operating magnet 22 slidingly integrated with 21) and outputs the detected signal as an electrical signal for use as an input signal. The detection principle will be described later.

At this time, the magnetic sensor 45a provided in the sensor unit 45 detects and outputs a change in the magnetic field according to the horizontal movement of the operating magnet 22 fixedly coupled to the moving member 2, and the operating magnet 22 is As the moving member 2 moves in a limited range, the moving member 2 moves within a range in which contact with the restraint magnet 32 is maintained.

Accordingly, the operating magnet 22 is moved by the user moving by applying a force that overcomes the restraining force by the magnetic force, and the restraint force of the continuous magnetic attraction is maintained so that the user returns to the original position when the actuating protrusion 21 is released.

That is, since movement and restoration of the operating magnet 22 are performed under the binding force of the magnetic attraction, mechanical wear or damage is eliminated despite the continuous operation of the operating magnet 22, so that the service life is long and the operation feeling is the same. It can provide a satisfactory quality to the user.

In addition, the magnetic flux density of the fixedly arranged restraint magnet 32 does not affect the magnetic detection and is used for the adjustment of the magnetic force for controlling the feeling of motion, and preferably has the same or lower magnetic flux density as the working magnet 22. Magnetic force control of the restraint magnet 32 and the working magnet 22 is adjustable by changing the size, area, volume and the like.

Meanwhile, 5 is a plan view illustrating an arrangement between an operating magnet of a pointing device and a magnetic sensor embedded in a sensor unit according to an exemplary embodiment of the present invention.

As shown in FIGS. 1 and 5, the sensor unit 45 respectively detects a magnetic field change according to the movement of the operating magnet 22 in the X-axis direction and outputs corresponding X coordinate values (X1, X2). And magnetic sensors Y1 and Y2 for detecting a change in the magnetic field according to the movement in the Y-axis direction and outputting a corresponding Y coordinate value. That is, the position of the operating magnet 22 can be determined by the output X coordinate value and the Y coordinate value, and when the operation magnet 22 moves to a different position, it outputs different values according to the movement amount.

In addition, a control unit (not shown) which amplifies the output of the magnetic sensor 45a, aggregates, and detects and outputs a change in the final magnetic field. It is preferable to arrange the plurality of magnetic sensors X1, X2, Y1, and Y2 symmetrically with respect to the mounting hole 34 as a center point. As the above-described magnetic sensor 45a, it is preferable to use any one of a Hall element, a semiconductor magnetoresistive element, a potato magnetoresistive element, or a GMR (Giant Magneto Resistive) element. The magnetic sensor 45a preferably uses an element whose electrical characteristics change with the change of the magnetic field. The magnetic sensor 45a used in the present embodiment employs a hall effect, and uses a Hall element in which an output voltage generated as a magnetic field is applied to the current flowing through the Hall sensor in the vertical direction is changed.

On the other hand, Figure 6 is a view for explaining the dome switch driving of the pointing device according to an embodiment of the present invention.

As shown in FIGS. 1 and 6, when the moving member 2 is pressed in the direction of the substrate member 4, the moving member 2 is lowered and thus the constraining magnet 32 is also provided through the operating magnet 22. It descends and clicks on the elastic dome 42 below. At this time, the restraint magnet 32 is moved downward through the mounting hole 34 formed in the fixing member (3). Subsequently, when the force applied from the outside disappears, the restraint magnet 32 is restored to its original position by the restoring force of the elastic dome 42, and the moving member 2 is also restored to its original position. Accordingly, the pointer on the screen can be used in parallel with the selection function by clicking.

On the other hand, Figure 7 is a perspective view schematically showing the operating state of the main part of the pointing device according to another embodiment of the present invention.

Since the basic configuration except for the magnetic induction medium 7 of the present embodiment is the same as the above-described embodiment, a detailed description thereof will be omitted.

The characteristic of the present embodiment is that the magnetic sensor is a magnetic induction medium of the metal body arranged to compensate for the difficulty of control due to the low sensitivity when the Hall sensor uses a latch type other than the linear type of the above-described embodiment (7). ) Is provided.

As shown in FIG. 7, a plurality of magnetic induction mediators are arranged on the outer side of the confinement magnet 32 so as to face each other along the circumferential direction so as to be magnetized according to the horizontal movement of the working magnet 22 to increase the strength of the magnetic field. It is preferable that (7) is further provided.

For example, the magnetic induction medium 7 may be arranged such that the same annular member having one side opened on the outer circumference of the constrained magnet 32 faces up, down, left, and right as shown.

In detail, when the latch type Hall sensor is used as a magnetic sensor, the moving member 2 moves within the moving hole 111 and when the axis of the Hall sensor has X and Y axes, The magnetic induction medium 7 is disposed in the diagonal direction to compensate for the difference in the distance perceived by the sensor during the diagonal movement. Accordingly, the magnetic induction medium 7 can detect the same movement in the X-axis, Y-axis direction and diagonal direction.

Of course, the magnetic induction medium is not limited to the shape shown. Furthermore, by changing the shape of the magnetic induction medium, it is possible to adjust the strength of the magnetic field on the magnetic sensor.

Therefore, when the magnetic induction medium 7 is magnetized in accordance with the movement of the operation magnet 22, a magnetic field is generated, so that the effect of the operation magnet 22 on the magnetic induction medium 7 can be obtained. Can be facilitated.

As described above, the present invention is provided with the constrained magnets 32 arranged in the same polarity in the vertical direction to move and restore the operating magnets 22 for magnetic detection by the constraining force by the magnetic attraction.

Through this, the use of parts that act as mediators such as silicone body or plastic body to provide the existing elastic force can be excluded, and the durability and durability of the product can be remarkably improved by excluding the wear or damage of parts due to continuous use. have.

In addition, mechanical wear or damage is essentially excluded in the movement of the operating magnet 22, so that the same operational feeling can be maintained despite the long use of the product, so that the user can have confidence in the product with the same operational feeling.

As described above, the pointing device according to the preferred embodiment of the present invention is not limited to each of the above-described embodiments, and has a general knowledge in the technical field to which the present invention belongs without departing from the scope of the claims of the present invention. Modifications can be made by a person, and such modifications are within the scope of the present invention.

1 is a perspective view showing a pointing device according to an embodiment of the present invention.

Figure 2 is an exploded perspective view showing a pointing device according to an embodiment of the present invention.

3 is a cross-sectional view showing a pointing device according to an embodiment of the present invention.

Figure 4 is a cross-sectional view showing an operating state of the pointing device according to an embodiment of the present invention.

5 is a plan view showing the arrangement between the operating magnet and the magnetic sensor built in the sensor unit of the pointing device according to an embodiment of the present invention.

6 is a view for explaining the dome switch driving of the pointing device according to an embodiment of the present invention.

Figure 7 is a perspective view schematically showing the operating state of the main part of the pointing device according to another embodiment of the present invention.

<Description of Symbols for Main Parts of the Present Invention>

10: pointing device 1: cover member

11: upper case 111: moving hole

12: lower bracket 121: through hole

2: moving member 21: working projection

22: working magnet 23: body

3: fixing member 31: sensing hole

32: redemption magnet 33: fixed protrusion

34: mounting hole 4: substrate member

41: substrate body 42: elastic dome

44: signal output unit 5: sliding member

Claims (5)

A cover member provided therein and accommodating therein, the cover member having a moving hole formed at one side of an upper surface thereof; A moving member accommodated with an outer portion spaced apart from the inner side of the cover member, and having a working protrusion protruding through the moving hole on the upper surface thereof and an operating magnet moved horizontally integrally with the working protrusion at a lower end thereof; The magnetic force is disposed on the lower side of the moving member, and the magnetic force is applied to the operating magnet so as to maintain a restraint force applied to the horizontal movement and restoration of the movable member by being horizontally inserted into a mounting hole formed through the lower side of the operating magnet. Fixing member provided with a restraining magnet; And A pointing device disposed on the lower side of the holding member, comprising a substrate member having a sensor unit for detecting the horizontal movement of the operating magnet to output an electrical signal. The method of claim 1, The constraining magnet is disposed on the inner portion of the plurality of magnetic sensors circumferentially provided in the sensor portion and at the same time the bottom surface is elastically supported on the elastic dome protruding on the upper surface of the substrate member. The method of claim 2, The elastic dome is a pointing device, characterized in that the dome switch operation to generate an electrical signal in contact with the switch contact is concave elastically deformed in accordance with the downward movement of the restraint magnet. The method of claim 1, And a sliding member attached to one surface of the movable member and the fixed member to relieve contact friction while maintaining magnetic forces of the operating magnet and the restraint magnet. The method of claim 1, And a plurality of magnetic induction mediators disposed on the outer side of the constrained magnet in pairs so as to face each other in the circumferential direction to increase the strength of the magnetic field by being magnetized according to the horizontal movement of the operating magnet.

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