KR101091917B1 - Magnetic levitation sliding structure - Google Patents

Abstract

The magnetic levitation sliding structure according to the present invention includes a first slider member having at least one guide portion, a second slider member having a receiving portion for accommodating the guide portion, and slidably coupled to the first slider member, and a guide. A first magnet portion disposed in the portion, a second magnet portion disposed in the receiving portion so as to face each other with the guide portion therebetween and exerting a magnetic force on the first magnet portion, and a guide portion disposed on a surface facing the guide portion of the receiving portion. And a foreign matter blocking unit for blocking foreign substances from flowing between the container and the receiving unit.

Description

Magnetic levitation sliding structure

1 is a perspective view showing an example of a general mobile phone having a sliding structure.

2 is a cross-sectional view showing a conventional sliding structure.

3 is an exploded perspective view of a magnetic levitation sliding structure according to an embodiment of the present invention.

4 is a cross-sectional view taken along line IV-IV of the sliding structure shown in FIG.

5 is a cross-sectional view taken along the line VV of the sliding structure shown in FIG. 4.

FIG. 6 is a partial perspective view schematically showing the arrangement of the magnet portions of the sliding structure of FIG. 3. FIG.

7 is an operating state diagram showing a state in which the sliding structure of Figure 3 is closed.

8 is a cross-sectional view taken along the line VII-VII of FIG. 7.

9 is an operating state diagram showing that the sliding structure of Figure 3 sliding movement.

10 is a cross-sectional view taken along the line VII-VII of FIG. 9.

11 is an operating state diagram showing that the sliding structure of Figure 3 the sliding movement.

12 is a cross-sectional view taken along the line II-II of FIG. 11.

13 is a side cross-sectional view of a magnetic levitation sliding structure according to another embodiment of the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

110: first slider member 123: second receiving groove

111: support 130: first magnet

112: guide portions 130a, 140a: magnetic line shield

113: auxiliary receiving portion 140: second magnet portion

114: first receiving groove 170: foreign matter blocking unit

120: second slider member 171: soft part

121: base 172: hard part

122: accommodating part 180: lubricating part

100: magnetic levitation sliding structure

The present invention relates to a magnetic levitation sliding structure, and more particularly, to a magnetic levitation sliding structure in which external foreign matters are prevented from penetrating into the sliding structure so that the sliding operation by the magnetic force is smoothly maintained.

Recently, many sliding structures have been introduced into portable electronic devices such as mobile phones, cameras, portable multimedia players (PMPs), electronic dictionaries, electronic organizers, navigation guides, and small notebooks. The sliding structure not only simplifies the operation of the portable electronic device, but also has the advantage of enabling the implementation of a beautiful design. In other words, as the functions of the portable electronic devices have recently diversified, the number of functional buttons required to perform the functions has increased greatly. When the sliding structure is adopted, sufficient space for installing various functional buttons in the portable electronic devices is secured. can do.

1 is a perspective view showing an example of a general mobile telephone having a sliding structure, and FIG. 2 is a cross-sectional view showing a conventional sliding structure.

As illustrated in FIG. 1, the mobile telephone 10 having a sliding structure includes a sign language unit 20 in which a display unit 2 is formed, and a talk unit 30 in which an operation unit 3 such as a number key is formed. do. When using the mobile phone 10 of such a configuration to send and receive calls or messages, etc., the receiver 20 is pushed up and used, the mobile phone 10 is provided with a sliding structure 40 for the sliding operation.

It is preferable that the operation of the sliding structure is made semi-automatically. For this reason, in the manually operated sliding structure, the user must apply a separate sliding force, and especially when the sliding structure is completely closed or open, the sliding operation is completely dependent on the large operating force of the user, causing considerable inconvenience. Because.

However, in general, since the size of the talker unit 30 that is exposed to the outside by the sliding operation of the sliding structure is small, it is narrow that all the various function buttons other than the number keys are arranged. Therefore, the additionally necessary buttons are mostly installed in the sign language unit 20 in which the display unit is formed, and if necessary, a function button may be installed in the side of the device. As such, the function buttons are not centrally disposed and distributed to various positions of the device, thereby causing inconvenience in button operation. In addition, in order to operate the function buttons, a separate circuit board, a signal line for connecting the buttons, a flexible board circuit, and the like have to be additionally installed.

The sliding structure 50 of FIG. 3 is disclosed in Korean Patent Laid-Open Publication No. 10-2005-0089584, and includes a first slider member 51 and a second slider member 52 that is slidable with respect to the first slider member 51. ).

Here, the first slider member 51 includes the first magnetic member 53 in the shape of a horseshoe magnet, the second slider member 52 also includes the second magnetic member 54 in the shape of a horseshoe magnet, The magnetic member 53 and the second magnetic member 54 are alternately arranged to help the sliding operation.

According to the sliding structure 50 of such a structure, there existed a problem that the foreign material, such as dust, penetrates from the outside in the clearance which exists between the 1st slider member 51 and the 2nd slider member 52 during a sliding operation. When foreign matter penetrates between the first slider member 51 and the second slider member 52, the sliding operation of the sliding structure 50 is not smoothly performed, and the sliding structure 50 is caused by repeated sliding operation. ) Has a problem that is damaged by foreign matter. In particular, when the foreign matter introduced into the sliding structure 50 is a metal component affected by the magnetic force, the sliding operation may be remarkably poor due to the surfaces of the first slider member 51 and the second slider member 52.

Therefore, in the related art, in order to maintain a smooth operating state of the sliding structure 50 and to prevent damage caused by foreign matters, there was inconvenience in using the foreign matter flowing into the sliding structure 50 to be removed.

SUMMARY OF THE INVENTION An object of the present invention is to provide a magnetic levitation sliding structure in which foreign matter is prevented from penetrating from outside and thus the sliding operation is smoothly performed.

The present invention provides a sliding structure of a portable electric device having a foreign material blocking unit for blocking the foreign matter infiltration to the outside and the sliding operation is made by a magnetic force.

The magnetic levitation sliding structure according to the present invention includes a first slider member having at least one guide portion, a second slider member having a receiving portion for accommodating the guide portion, and slidably coupled to the first slider member, and a guide. A first magnet portion disposed in the portion, a second magnet portion disposed in the receiving portion so as to face each other with the guide portion therebetween and exerting a magnetic force on the first magnet portion, and a guide portion disposed on a surface facing the guide portion of the receiving portion. And a foreign matter blocking unit for blocking foreign substances from flowing between the container and the receiving unit.

In the present invention, the receiving portion may be formed in a cross-section of the letter "C".

In the present invention, the cross section of the second magnet portion may be formed in a "-" shape.

In the present invention, the foreign material blocking unit may include a flexible material having elasticity in at least the vertical direction.

In the present invention, the foreign matter blocking portion may be disposed at both end portions in the sliding direction of the accommodation portion.

In the present invention, the sliding structure may further include a lubrication portion disposed between the foreign matter blocking portions on the surface facing the guide portion of the accommodation portion to guide the sliding movement of the guide portion with respect to the accommodation portion.

In the present invention, the lubrication portion may include a synthetic resin having abrasion resistance.

In the present invention, the thickness of the lubrication portion may be formed smaller than the thickness of the foreign matter blocking portion.

Hereinafter, the configuration and operation of the magnetic levitation sliding structure according to the present invention through the embodiments of the accompanying drawings will be described in detail.

3 is an exploded perspective view of a magnetic levitation sliding structure according to an embodiment of the present invention, Figure 4 is a cross-sectional view taken along the line IV-IV of the sliding structure shown in Figure 3, Figure 5 is a sliding shown in Figure 4 FIG. 6 is a cross-sectional view taken along line V-V of the structure, and FIG. 6 is a partial perspective view schematically showing the arrangement of the magnet portions of the sliding structure of FIG.

The magnetic levitation sliding structure 100 according to the embodiment shown in FIG. 3 includes a first slider member 110, a second slider member 120, a first magnet portion 130, and a second magnet portion ( 140, and the foreign matter blocking unit 170.

The first slider member 110 is made of an aluminum alloy, which is a nonmagnetic material, and includes a support part 111, a guide part 112, and an auxiliary receiving part 113. The support part 111 is formed in a plate shape as a whole, and the guide part 112 is extended to both sides of the upper part. The guide part 112 functions to guide the second slider member 120 to allow the second slider member 120 to slide with respect to the first slider member 110. The guide part 112 may be formed only on one side of the first slider member 110, but in this embodiment, the guide part 112 is formed on both sides of the first slider member 110 to balance the sliding movement.

On both side surfaces of the lower portion of the support 111 may be formed to extend the auxiliary receiving portion 113 toward the outside. The auxiliary accommodating part 113 is a portion that maintains the engagement state of the second slider member 120 with respect to the first slider member 110 so that the second slider member 120, which will be described later, does not move outward. The auxiliary receiving portion 113 is formed to be spaced apart from the guide portion 112 by a predetermined interval, the cross-sectional shape is formed of "L". Due to the shape of the auxiliary accommodating part 113, the first accommodating groove 114 is formed between the auxiliary accommodating part 113 and the guide part 112.

There is no particular limitation on the processing method of the shape of the support part 111, the guide part 112 and the auxiliary receiving part 113, and various methods such as a die casting method or plastic working bending of a plate-like material may be used.

The second slider member 120 is made of an aluminum alloy, which is a nonmagnetic material, and is coupled to the first slider member 110 so as to be slidable. The second slider member 120 may include a base 121 and a receiving part 122.

The first slider member 110 and the second slider member 120 of the present embodiment are made of aluminum alloy, but are not limited thereto. That is, the first slider member 110 and the second slider member 120 may be made of synthetic resin, and the first slider member 110 and the second slider member 120 may be made of different materials.

The base 121 is formed in a plate shape as a whole. Both sides of the base portion 121 is formed to extend the receiving portion 122 to accommodate the guide portion 112.

Since the accommodating part 122 has a cross section formed in the shape of the letter “c”, the second accommodating groove 123 is formed inside the accommodating part 122 in parallel with the extending direction of the guide part 112. By this structure, the guide part 112 is coupled to the second receiving groove 123 and a part of the receiving part 122 is fitted into the first receiving groove 114, whereby the second slider member 120 is formed. 1 is guided to slide along the slider member 110. When the receptacle 122 is coupled to the guide portion 112, the auxiliary receptacle 113 receives at least a portion of the outer surface of the receptacle 122. Therefore, even when the sliding operation is performed, the coupling between the second slider member 120 and the first slider member 110 may be stably maintained.

There is no particular limitation on the shape processing method of the base 121 and the receiving portion 122, and various methods such as die casting or plastic processing of bending a plate-like material may be used.

On the second receiving groove 123, which is a surface facing the guide part 112 of the receiving part 122, the foreign matter blocking part 170 that blocks foreign matter from flowing in between the guide part 112 and the receiving part 122 from the outside. ) Is placed. The foreign material blocking unit 170 may be disposed at both end portions in the sliding direction of the accommodation unit 122, respectively. Since both ends of the accommodation part 122 are exposed to the outside even while the guide part 112 is slid with respect to the accommodation part 122, the foreign matter blocking part 170 is thus an end of the accommodation part 122. By placing in the outside it can effectively block the inflow of foreign substances.

In this embodiment, the foreign matter blocking unit 170 is disposed at both ends of the receiving unit 122, but the present invention is not limited thereto. That is, the foreign matter blocking unit may be disposed to extend in the sliding direction along the inner wall surface of the accommodation unit 122.

The foreign material blocking unit 170 may include a flexible material having elasticity in at least the vertical direction. Referring to FIG. 4, the foreign material blocking unit 170 includes a soft portion 171 and a hard portion 172. The soft part 171 is made of a soft material and is disposed inside the receiving part 122 to directly contact the surface of the guide part 112 and assist the sliding operation to be performed smoothly. The hard part 172 is made of a hard material and is disposed outside the receiving part 122, and is a part facing the inner surface of the auxiliary receiving part 113 without contacting the guide part 112. The hard part 172 functions to effectively absorb a shock acting toward the side with respect to the sliding direction between the first slider member 110 and the second slider member 120.

Since the foreign matter blocking unit 170 of the present embodiment includes a cloth material, the foreign material blocking unit 170 may effectively block foreign substances such as dust that may flow between the receiving unit 122 and the guide unit 112. The foreign material blocking unit 170 may include a cloth material that is soft and elastic such as melting. As a result, the friction force existing between the guide part 112 and the foreign matter blocking part 170 is minimized, and the impact acting between the guide part 112 and the receiving part 122 during the sliding operation is absorbed. 170 may not only block foreign matters, but may also assist the smooth sliding operation of the guide part 112.

The first magnet part 130 is disposed in the guide part 112, and the first magnet part 130 may be embedded in the guide part 112 so as not to cause damage due to friction. By modifying this, the first magnet part 130 may be disposed to be exposed to the surface of the guide part 112.

The first magnet part 130 of the present embodiment is made of one permanent magnet, but may be modified to be made of an electromagnet or the like. Several permanent magnets may be spaced apart from each other.

As shown in FIG. 5, the first magnet part 130 may be disposed at a part corresponding to the middle part of the overall sliding stroke distance of the part of the guide part 112 to assist the sliding action.

As shown in FIG. 6, the length L1 of the first magnet part 130 is formed to have the same length as the length L2 of the second magnet part 140, but the present invention is not limited thereto. That is, there is no particular limitation on the length of the first magnet part 130 of the present invention.

The first magnet part 130 has a rectangular shape, and is arranged such that the arrangement direction of the magnetic poles is perpendicular to the sliding direction. The magnetic pole of the first magnet part 130 is arranged so that the N pole is at the top and the S pole is at the bottom.

However, the arrangement of the magnetic poles of the first magnet part 130 of the present invention is not limited thereto. That is, the magnetic pole of the first magnet portion may be arranged such that the S pole is at the top and the N pole is at the bottom. In that case, the arrangement of the magnet poles of the second magnet part corresponding to the first magnet part should be changed in accordance with the arrangement of the magnet poles of the first magnet part to be changed.

The magnetic line shield 130a is disposed on the upper and lower surfaces of the first magnet part 130. In the present exemplary embodiment, the magnetic line shield 130a may be disposed only on the upper and lower surfaces of the first magnet unit 130. However, the magnetic line shield 130 may be additionally disposed on the side of the first magnet unit 130. In addition, the magnetic line shielding agent may be disposed on the guide portion 112, not directly disposed on the surface of the first magnet portion 130. In that case, first, the magnetic force line shielding agent is disposed at an appropriate position of the guide portion 112, and then the first magnet portion 130 is disposed on the guide portion.

The magnetic force line shielding agent 130a is made of a ferromagnetic material to shield the magnetic force line generated from the first magnet part 130. As the material, an AD-MU alloy may be used. In the present embodiment, the magnetic line shielding agent 130a is made of a ferromagnetic material, but may be made of a nonmagnetic material by modifying it.

The second magnet part 140 has a cross-sectional shape formed by a letter “C” and is embedded in the housing part 122. The magnets constituting the second magnet part 140 of the present embodiment are all made of permanent magnets, but by modifying the magnets, the second magnet part 140 may be made of electromagnets. The second magnet part 140 of the present embodiment is embedded in the receiving part 122, but may be modified so that the second magnet part 140 may be disposed on the surface of the receiving part 122.

The magnetic line shield 140a is disposed on the surface of the second magnet part 140. The magnetic line shielding agent may not be disposed directly on the surface of the second magnet part 140 but may be disposed in the receiving part 122. In that case, first, the magnetic field line shielding agent is disposed in the accommodating part 122, and then the second magnet part 140 is disposed in the accommodating part 122.

When the accommodating part 122 and the guide part 112 are coupled to each other, the first magnet part 130 may be positioned in an inner space of the second magnet part 140 having a cross-sectional shape of “??”. Therefore, a magnetic force may interact between the second magnet part 140 and the first magnet part 130.

The second magnet part 140 is disposed in the receiving part 122 such that opposite magnetic poles face each other with the first magnet part 130 interposed therebetween. In the present exemplary embodiment illustrated in FIG. 5, the upper side of the second magnet part 140 is the N pole and the lower side is the S pole based on the guide part 112. The repulsive force acts between the second magnet part 140 and the first magnet part 130 by the arrangement of the magnetic poles, thereby sliding between the second slider member 120 and the first slider member 110. The movement can be made smoothly.

When the upper and lower sides of the second magnet part 140 are connected to each other, the cross-sectional shape is formed as a letter 'C', thereby maintaining a thin thickness and implementing a desired arrangement of magnetic poles, but the present invention is not limited thereto. That is, the second magnet part may arrange bar magnets separated from each other on the upper side and the lower side, and adjust the arrangement of the magnetic poles of the upper and lower bar magnets to exert a repulsive force on the first magnet part 130.

The repulsive force always acts between the first magnet part 130 and the second magnet part 140. Accordingly, the friction of the second slider member 120 having the second magnet part 140 with respect to the first slider member 110 having the first magnet part 130 is minimized during the sliding operation. This is because the second slider member 120 can be lifted from the first slider member 110 by the repulsive force. The degree of injury is related to the magnitude of the magnetic force acting, specifically the size and nature of the magnet applied.

In this embodiment, the repulsive force acts between the first magnet portion and the second magnet portion, but the present invention is not limited to the arrangement structure of the magnetic poles of such magnet portions. Since the first slider member and the second slider member can slide together due to the action of the magnetic force acting between the first magnet part and the second magnet part, the first magnet part and the second magnet part will be described in the present embodiment. The magnetic poles may be arranged so that the attraction force is applied to each other. In addition, in the present embodiment, the first magnet portion and the second magnet portion are each made of one permanent magnet, but the present invention is not limited thereto. That is, in some cases, the sliding structure according to the present invention may be modified to include a first magnet part and a second magnet part made of a plurality of magnets.

In the sliding structure 100 having the above-described configuration, one of the first slider member 110 and the second slider member 120 concentrates electronic components such as a main chipset of an electronic device such as a mobile phone, a camera, a PMP, and a battery. It is mounted on a main body, and the other is mounted on a sub body having a relatively simple structure, thereby performing a sliding action. When the sliding structure 100 according to the present embodiment is applied to a portable electronic device, it becomes more advantageous in terms of installation space and installation cost.

In addition, the main body may be directly processed to form one of the first slider member 110 and the second slider member 120, and the other may be formed by directly processing the sub body. This can reduce the volume required for installation, it is possible to implement a thin portable electronic device capable of sliding operation.

FIG. 7 is an operating state diagram illustrating a closed state of the sliding structure of FIG. 3, and FIG. 8 is a cross-sectional view taken along the line VII-VII of FIG. 7.

7 and 8 illustrate a state in which the second slider member 120 is in the initial position, and the second slider member 120 is positioned below the first slider member 110.

A portion of the first magnet part 130 is positioned between the N pole and the S pole of the second magnet part 140. In this case, the repulsive force acts between the second magnet part 140 and the first magnet part 130 by the arrangement of the magnetic poles of the second magnet part 140 and the first magnet part 130. The second slider member 120 may be stably disposed at the initial position by the repulsive force acting. In addition, since the second slider member 120 is in a floating state with respect to the first slider member 110 due to the acting repulsive force, friction during subsequent sliding operations can be reduced.

When the user pushes up the second slider member 120 at the initial position, the entire portion of the first magnet part 130 is gradually located between the N pole and the S pole of the second magnet part 140. As a result, the magnitude of the repulsive force acting between the second magnet part 140 and the first magnet part 130 also increases.

Even if the user pushes up the second slider member 120 at a high speed, the second slider member 120 is suddenly moved by the repulsive force acting between the second magnet part 140 and the first magnet part 130. Since the action to be prevented can be prevented from impact on the sliding structure (100). In addition, the second slider member 120 rises from the first slider member 110 due to the acting repulsive force, thereby reducing the friction during the sliding operation.

As the user continues to push up the second slider member 120, the sliding structure 100 reaches the states of FIGS. 9 and 10.

FIG. 9 is an operating state diagram illustrating sliding of the sliding structure of FIG. 3, and FIG. 10 is a cross-sectional view taken along the line VII-VII of FIG. 9.

9 and 10 illustrate a case where the second slider member 120 is in an intermediate position, and most of the first magnet part 130 is disposed between the N pole and the S pole of the second magnet part 140. The repulsive force acts strongly between the second magnet part 140 and the first magnet part 130.

If the user continues to push up the second slider member 120 in the state of FIGS. 9 and 10, the user may have a small force due to the repulsive force acting between the second magnet part 140 and the first magnet part 130. The second slider member 120 may be pushed up without applying force or force.

That is, in this case, since the user does not need to apply special force while pushing up the second slider member 120, the excessive impact on the sliding structure 100 can be prevented from being pushed up by the user's pushing force. As a result, the second slider member 120 rises from the first slider member 110 by the action of the repulsive force, thereby reducing the friction during the sliding operation.

As the user continues to push up the second slider member 120, the sliding structure 100 reaches the states of FIGS. 11 and 12.

FIG. 11 is an operating state diagram illustrating that the sliding structure of FIG. 3 is slidably moved, and FIG. 12 is a cross-sectional view taken along the line II-XIII of FIG. 11.

In the state of the sliding structure 100 of FIGS. 11 and 12, the first magnet part 130 and the second magnet part by the arrangement of the magnetic poles of the second magnet part 140 and the first magnet part 130. The repulsive force acts between the 140.

Accordingly, the second slider member 120 may be stably maintained at the final position due to the action of the repulsive force. In addition, since the second slider member 120 maintains a state of being lifted from the first slider member 110 due to the action of the repulsive force, when the user later slides downward again, the frictional force that is reduced is reduced.

When the sliding structure 100 slides from the initial position to the final position through the intermediate position, or slides from the final position to the initial position, the foreign material blocking unit 170 disposed at both ends of the receiving portion 122 is provided with a guide portion ( The state of contact with the surface of 112 is maintained. Therefore, the foreign material blocking unit 170 of the cloth material may block foreign matter such as dust from flowing between the first slider member 110 and the second slider member 120 from the outside. In addition, since the foreign matter blocking unit 170 is soft, the friction force acting between the guide unit 112 and the foreign matter blocking unit 170 is minimized, so that the sliding operation of the guide unit 112 with respect to the receiving unit 122 is smoothly performed. Can be done. In addition, since the foreign matter blocking unit 170 has elasticity, the guide unit 112 may be elastically supported to alleviate the shock acting during the sliding operation.

13 is a side cross-sectional view of a magnetic levitation sliding structure according to another embodiment of the present invention.

The magnetic levitation sliding structure according to the embodiment shown in FIG. 13 includes a first slider member 110, a second slider member 120, a first magnet portion 130, a second magnet portion 140, The foreign material blocking unit 170 and the lubrication unit 180 are included.

The sliding structure of the present embodiment further includes a lubrication unit 180 disposed between the foreign matter blocking units 170 on the surface facing the guide unit 112 of the accommodation unit 122. different.

The lubrication unit 180 performs a function of assisting the receiving unit 122 and the guide unit 112 to slide smoothly with each other. The foreign material blocking parts 170 disposed at both ends in the sliding direction of the accommodation part 122 may support the guide part 112 so as to be slidably movable, but when the sliding structure is used for a long time, the foreign material including cloth material The blocking parts 170 may be worn.

In this embodiment, the lubrication unit 180 is in contact with the surface of the guide portion 112 accommodated in the receiving portion 122 and supports so that the guide portion 112 can smoothly move. In addition, when the guide part 112 slides with respect to the accommodating part 122, due to the clearance between the guide part 112 and the accommodating part 122, the guide part 112 may be shaken in the left and right direction with respect to the sliding direction. 180 may function to reduce the shake in the left and right directions. To this end, the lubrication unit 180 may include a synthetic resin having abrasion resistance. Since the foreign matter blocking unit 170 may be contracted to have elasticity in a vertical direction with respect to the sliding direction, the thickness of the lubrication unit 180 may be smaller than the thickness of the foreign matter blocking unit 170 in consideration of this.

The present invention can exhibit similar effects in places such as a case or a semi-automatic opening and closing door which are provided with at least two slider-type members as well as mutual sliding movements as well as small electronic devices.

Although the present invention has been described with reference to the above-described embodiments, these are merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the appended claims.

As described above, the magnetic levitation sliding structure of the present invention applies a magnetic force to the second magnet portion disposed on the second slider member so that the first slider member and the second slider member are applied to the first magnet portion disposed on the first slider member. Since the sliding movement with each other, the sliding operation can be made smoothly.

In addition, since the foreign matter blocking unit disposed in the receiving unit blocks external foreign matters from flowing between the guide unit and the receiving unit, the first slider member is not easily contaminated by foreign matters outside even when the sliding structure is operated for a long time. And the sliding operation of the second slider member can be made smooth.

In addition, since the lubrication unit may be disposed between the foreign material blocking unit, the sliding operation of the sliding structure can be made more smoothly, and the shaking in the left and right directions in the sliding direction can be prevented.

Claims (8)

A first slider member having at least one guide portion; A second slider member having a receiving portion for receiving the guide portion, the second slider member slidably coupled to the first slider member; A first magnet part disposed in the guide part; A second magnet part disposed in the accommodating part so as to face each other with the guide part interposed therebetween and exerting a magnetic force on the first magnet part; And The magnetic levitation sliding structure comprising a foreign material blocking portion disposed on a surface facing the guide portion of the receiving portion to block foreign substances from flowing between the guide portion and the receiving portion. The method of claim 1, The accommodating portion is a magnetic levitation sliding structure whose cross section is formed in a "-" shape. Claim 3 was abandoned when the setup registration fee was paid. The method of claim 2, The second magnet portion is a magnetic levitation sliding structure whose cross section is formed in a "-" shape. Claim 4 was abandoned when the registration fee was paid. The foreign material blocking portion magnetic levitation sliding structure comprising a flexible material having elasticity in at least the vertical direction. Claim 5 was abandoned upon payment of a set-up fee. 4. The method according to any one of claims 1 to 3, The foreign matter blocking portion is a magnetic levitation sliding structure disposed at both ends in the sliding direction of the receiving portion. The method of claim 5, The sliding structure further comprises a lubrication portion disposed between the foreign matter blocking portions on the surface facing the guide portion of the receiving portion to guide the sliding movement of the guide portion relative to the receiving portion. Claim 7 was abandoned upon payment of a set-up fee. The method of claim 6, The lubricating portion is a magnetic levitation sliding structure comprising a synthetic resin having abrasion resistance. The method of claim 6, Maglev sliding structure of the lubrication portion is formed smaller than the thickness of the foreign matter blocking portion.

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