KR20160055031A - Slide device for composite load properly - Google Patents

Abstract

The present invention relates to a slide device beneficial for a composite load. More specifically, an embodiment of the present invention provides a slide device which is attached to a fixed member and connects the fixed member with a movable member so that the movable member is able to slide. The slide device comprises: a mobile rail which is arranged in the lower side of the mobile member, includes a first space forming three corner parts inside by bending both ends of an L-shaped cross section thereof, and is open downwards; a first rolling ball group which is positioned in the three corner parts formed in the mobile rail and provides a sliding motion for the mobile rail by rolling and coming in contact with the mobile rail, wherein the first rolling ball group includes a first rolling ball, a second rolling ball, and a third rolling ball; and a fixed rail which has one end part attached to the fixed member, has the other end part inserted into the first space, and rolls and comes in contact with the first rolling ball group. In the provided slide device beneficial for a composite load, the diameter of the first rolling ball, which is not paired in the diagonal direction of the first space, is smaller than the diameter of the second rolling ball and the diameter of the third rolling ball which face each other by being paired with each other in the diagonal direction.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a slide device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide device, and more particularly, to a slide device which is advantageous in complex loading.

A slide device is provided between the furniture and the drawer to allow the drawer to be easily removed from the furniture when the user opens and closes the drawer.

In the case of the three-fold folding type, the furniture-side fixed rail is fixed to the side of a furniture such as a desk, and the drawer-side fixed rail enters and leaves the furniture The intermediate slide rail is disposed between the furniture side fixing rail and the drawer side fixing rail and the slide ball is disposed between the furniture side fixing rail and the intermediate slide rail and between the drawer side fixing rail and the intermediate slide rail .

The conventional slide apparatus thus configured allows the drawer to move without causing a large friction from the furniture while the slide ball is rolling by pulling or pushing the drawer. However, since it is not perfect to simply reduce the friction when the drawer moves in and out, it is necessary to inject oil such as grease between the contact surfaces of the rails and the slide balls to improve the friction reduction performance.

The sliding device repeatedly draws and pulls in the state where the weight of the stored object is added to the weight of the drawer during the use of the furniture. At this time, the load generated in the sliding device changes in various directions according to the position of the drawer, And the abrasion is promoted by causing abnormal contact between the slide ball and the slide ball, there is a problem that the performance of reducing the friction generated when the drawer is pulled out and drawn is remarkably lowered.

Korean Patent Publication No. 1020100079712

An object of the present invention is to provide a slide device which is advantageous in complex loading, in which abrasion resistance is improved by dispersing a composite load generated from an object to be slid, and the service life of the object to be slid can be increased.

 Another object of the present invention is to provide a slide device which is advantageous in complex loading which can reduce the volume through efficient arrangement of parts.

Another object of the present invention is to provide a slide apparatus which is advantageous in complex loading capable of preventing excessive deformation of a drawer while effectively supporting an upward load, a downward load and a torsional load generated in an object to be slid .

One embodiment of the present invention relates to a slide device which is attached to a fixing member and connects the fixing member and the movable member so that the movable member can slide and is arranged on the lower side of the movable member, A movable rail which is opened in a downward direction and which includes a first space formed by bending both ends and forming three corners in the inside thereof and which is located at three corners formed inside the movable rail and is in rolling contact with the movable rail, A first rolling ball group that provides a sliding movement to the moving rail, wherein the first rolling ball group includes a first rolling ball, a second rolling ball and a third rolling ball, and one end attached to the fixing member And the other end is embedded in the first space and includes a fixed rail in rolling contact with the first rolling ball group, That is paired diameter of the first ball cloud can provide a favorable slide device in the second cloud view and small composite load than the diameter of the third cloud view facing in pairs in a diagonal direction.

In one embodiment, the diameter of the second rolling ball may be equal to the diameter of the third rolling ball, the diameter of the first rolling ball is at least 0.1% of the diameter of the second rolling ball, and the diameter of the second rolling ball is at least 85% And a first straight line connecting the center of the first cloud ball and the center of the second cloud ball meets a second straight line connecting the center of the first cloud ball and the center of the third cloud ball, Included Angle) may be greater than or equal to 1 and less than 90.

In another embodiment, the other end of the fixed rail is formed by being bent in a U-shape, and when the first rolling ball, the second rolling ball and the third rolling ball are contacted, the inner space is deformed by elasticity And the three corners at which the first rolling ball group is in contact may be formed in a raceway so that the first rolling ball group can be in rolling contact with each other.

According to another embodiment of the present invention, there is provided a slide device which is attached to a stationary member and connects the stationary member and the movable member so that the movable member can slide and is arranged on the lower side of the movable member, A movable rail which is opened in a downward direction and which includes a first space formed by bending both ends of the movable rail and forming three corners in the movable rail and which is located at three corners formed inside the movable rail, A first rolling ball group that provides a sliding movement to the moving rail, wherein the first rolling ball group includes a first rolling ball, a second rolling ball and a third rolling ball, And the other end portion has a sectional shape and both ends of the L shape are bent so as to form a third space in the inside thereof, A second rolling ball group located at three corners formed inside the other end of the fixed rail and making a rolling contact with the other end of the fixed rail, , A fifth cloud ball and a sixth cloud ball, the upper end is embedded in the first space and is in rolling contact with the first rolling ball group and the lower end is embedded in the second space, Wherein the diameter of the first rolling ball which is not mated in a diagonal direction in the first space is greater than the diameter of the second rolling ball and the third rolling ball facing each other in a diagonal direction, The diameter of the fourth rolling ball which is smaller than the diameter of the rolling ball and does not mate with the second space in the diagonal direction is smaller than the diameter of the fifth rolling ball and the sixth rolling blade The small composite load than the diameter it is possible to provide a favorable sliding device.

In one embodiment, the diameter of the second rolling ball may be equal to the diameter of the third rolling ball, the diameter of the first rolling ball is at least 0.1% of the diameter of the second rolling ball, and the diameter of the second rolling ball is at least 85% And a first straight line connecting the center of the first cloud ball and the center of the second cloud ball meets a second straight line connecting the center of the first cloud ball and the center of the third cloud ball, Included Angle) may be greater than or equal to 1 and less than 90.

In another embodiment, the diameter of the fifth rolling ball and the diameter of the sixth rolling ball may be the same, the diameter of the fourth rolling ball may be 0.1% or more of the diameter of the fifth rolling ball, and 85% And a third straight line connecting the center of the fourth cloud ball and the center of the fifth cloud ball meets a fourth straight line connecting the center of the fourth cloud ball and the center of the sixth cloud ball, Included Angle) may be greater than or equal to 1 and less than 90.

In another embodiment, the three corner portions at which the first rolling ball group is in contact are formed in a raceway so that the first rolling ball group can come into rolling contact with each other, The raceway can be formed so that the second rolling ball group can come into rolling contact with the third rolling ball group.

In another embodiment, the intermediate rail is located inside the moving rail, and the folded surface, which is bent so as to contact the both side surfaces of the third rolling ball facing the second rolling balls, A lower end portion of the fixed rail located inside the fixed rail and in contact with the fourth rolling ball, the folded surface bent to contact both side surfaces of the sixth rolling ball facing the fifth rolling ball, And an intermediate portion connecting the upper end portion and the lower end portion. The upper end portion, the intermediate portion, and the lower end portion may be integrally formed by bending one elastic material.

In another embodiment, the upper end portion is formed to be bent in a U-shape so as to minimize the elasticity of the inner space when the first rolling ball, the second rolling ball and the third rolling ball are in contact with each other. And the lower end portion is formed by being bent in a U shape so as to minimize the deformation of the inner space due to the elasticity when the fourth rolling ball, the fifth rolling ball and the sixth rolling ball are in contact with each other The folded surface can be closely contacted.

The sliding device advantageous to complex loading according to an embodiment of the present invention improves abrasion resistance by dispersing a composite load generated from an object to be slid, thereby increasing the lifetime of the object to be slid.

The slide device advantageous to the composite load according to another embodiment of the present invention can reduce the volume through efficient arrangement of parts.

The slide device advantageous to the composite load according to another embodiment of the present invention can effectively prevent excessive deformation of the drawer while effectively supporting upward, downward, and torsional loads generated in the object.

1 is a perspective view of a drawer having a slide device advantageous to complex loading according to an embodiment of the present invention.
2 is a cross-sectional view illustrating a moving member and a fixing member having a slide device advantageous to complex loading according to an embodiment of the present invention.
3 is a perspective view of a moving rail according to an embodiment of the present invention.
4 is a perspective view illustrating a fixed rail according to an embodiment of the present invention.
5 is a cross-sectional view illustrating a slide apparatus advantageous to complex loading according to an embodiment of the present invention.
FIG. 6 is a cross-sectional view illustrating a moving member and a fixing member having a slide device advantageous to complex loading according to an embodiment of the present invention.
7 is a perspective view illustrating a moving rail according to an embodiment of the present invention.
8 is a perspective view of an intermediate rail according to an embodiment of the present invention.
9 is a perspective view of a fixed rail according to an embodiment of the present invention.
10 is a cross-sectional view illustrating a slide device advantageous to complex loading according to an embodiment of the present invention.
11 is a cross-sectional view illustrating a slide apparatus advantageous to complex loading according to another embodiment of the present invention.
12 is a cross-sectional view illustrating a slide device advantageous to composite loading according to another embodiment of the present invention.
13 is a cross-sectional view illustrating a slide apparatus advantageous to composite loading according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings. It is to be understood that the following specific structure or functional description is illustrative only for the purpose of describing an embodiment in accordance with the concepts of the present invention and that embodiments in accordance with the concepts of the present invention may be embodied in various forms, It should not be construed as limited to the embodiments.

The embodiments according to the concept of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail in this specification or application. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all changes, equivalents, and alternatives included in the spirit and scope of the present invention.

The terms first and / or second etc. may be used to describe various components, but the components are not limited to these terms. The terms may be named for the purpose of distinguishing one element from another, for example, without departing from the scope of the right according to the concept of the present invention, the first element being referred to as the second element, The second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when it is mentioned that an element is "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions for describing the relationship between components, such as "between" and "between" or "adjacent to" and "directly adjacent to" should also be interpreted.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. It is to be understood that the terms such as " comprises "or" having "in this specification are intended to specify the presence of stated features, integers, But do not preclude the presence or addition of steps, operations, elements, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning of the context in the relevant art and, unless explicitly defined herein, are to be interpreted as ideal or overly formal Do not.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a drawer having a slide device advantageous to complex loading according to an embodiment of the present invention.

Referring to FIG. 1, a sliding device 50, which is advantageous in complex loading according to an embodiment of the present invention, may be installed in the furniture 10. The furniture (10) may include a drawer (20). The drawer 20 is part of the furniture 10 and the user U can pull the drawer 20 in the direction in which the user U is present to open the drawer 20 and the user U can pull the drawer 20 Can be pushed in the direction opposite to the direction in which the user is present to close the drawer 20. The drawer 20 is of a top opened structure, and the user U can load objects on the open top. When the user U loads an object on the drawer 20, a certain load is applied to the drawer 20. Here, the load may include both the upward load, the downward load, the torsional load, and the lateral load.

FIG. 1 illustrates an example of a drawer 20 provided in the furniture 10 for the purpose of understanding the present invention. The scope of the present invention is limited to the furniture 10 provided with the drawer 20 no. The furniture 10 may be an example of a fixing member 20 having a slide device 50 advantageous for complex loading according to an embodiment of the present invention and the drawer 20 may be an example of a fixing device according to an embodiment of the present invention And may be an example of the moving member 20 provided with the slide device 50 advantageous for the composite load. Therefore, if the furniture 10 is regarded as the fixing member 10 and the drawer 20 is regarded as the moving member 20, the excellence of the present invention can be clearly understood.

2 is a cross-sectional view illustrating a moving member and a fixing member having a slide device advantageous to complex loading according to an embodiment of the present invention.

Referring to FIG. 2, a slide apparatus 50 advantageous for complex loading according to an embodiment of the present invention can be attached between a fixing member 10 and a moving member 20, (20). To this end, the slide device 50 which is advantageous for complex loading according to an embodiment of the present invention may include a movable rail 100 and a fixed rail 200.

The movable rail 100 may be disposed at a lower portion of the movable member 20 and the fixed rail 200 may be disposed at one side of the fixed member 10. [ 2, two moving rails 100 may be disposed below both side ends of the moving member 20, and each fixed rail 200 may be attached inside the fixing member 10. As shown in Fig.

FIG. 3 is a perspective view illustrating a movable rail according to an embodiment of the present invention, FIG. 4 is a perspective view illustrating a fixed rail according to an embodiment of the present invention, FIG. 5 is a cross- Sectional view showing an advantageous slide device.

3 to 5, a slide apparatus 50 advantageous for complex loading according to an embodiment of the present invention includes a movable rail 100, a fixed rail 200, a first rolling ball group 300 .

The movable rail 100 may be disposed on the lower side of the movable member 20. [ A plurality of moving rails 100 may be disposed on the lower side of the movable member 20. The movable member 20 and the movable rail 100 can be fixed by fastening means. Since the movable rail 100 is fixed to the lower portion of the movable member 20, when the movable rail 100 moves, the movable member 20 can be moved in the same manner.

The end surface of the movable rail 100 may be formed by bending both ends thereof in an L shape having an angle of about 90 degrees. The first corner portion 131, the second corner portion 132 and the third corner portion 133 may be formed in the inside of the movable rail 100 in a sectional view.

One end of the first corner portion 131 may be connected to one end of the second corner portion 132 and the other end of the first corner portion 131 may be connected to one end of the third corner portion 133. The other end of the second corner portion 132 may be connected to the first opening 141. The other end of the third corner portion 133 may be connected to the second opening 142.

The first corner portion 131, the second corner portion 132 and the third corner portion 133 of the movable rail 100 may be included in the first space 150. The upper right side of the first space 150 may be the first corner 131, the upper left side may be the second corner 132, and the lower right side may be the third corner 133.

The three corner portions 131, 132 and 133 at which the first rolling ball groups 310, 320 and 330 contact with each other are formed in the raceways 161, 162 and 163 May be formed. The raceways 161, 162, and 163 may be formed in the first space 150. The first raceway 161 can come into rolling contact with the first rolling ball 310 at the first corner 131. And the second raceway 162 can come into rolling contact with the second rolling ball 320 at the second corner 132. [ The third raceway 163 can be in rolling contact with the third rolling ball 330 at the third corner 133. The first raceway 161, the second raceway 162, and the third raceway 163 may be formed in a round shape.

The first space 150 may be opened in the downward direction. The movable rail 100 can be in contact with the fixed rail 200 through the opened first space 150. A plurality of rolling balls may be disposed in the first space 150. The plurality of rolling balls may include a first rolling ball group. For example, the first rolling ball group may include a first rolling ball 310, a second rolling ball 320, and a third rolling ball 330.

The first rolling ball 310 may be disposed at the first corner 131. The first rolling ball 310 may face the open side 151 of the first space 150 in a diagonal direction. The second rolling ball 320 may be disposed at the second corner 132. The second rolling ball 320 may face the open side 151 of the first space 150 in the downward direction. The third rolling ball 330 may be disposed at the third corner 133. The third rolling ball 330 may face the open side 151 of the first space 150 in the lateral direction.

One end 201 of the fixed rail 200 may be attached to the fixing member 10 by fastening means. The other end 203 of the fixed rail 200 can be inserted into the first space 150. When the other end 203 of the fixed rail 200 is inserted into the first space 150, the other end 203 of the fixed rail 200 is moved in the first and second rolling balls 310 and 320, And can make a rolling contact with the third rolling ball 330. Here, the rolling contact means that the moving rail contacts with the first rolling ball 310, the second rolling ball 320, and the third rolling ball 330 so as to be able to make motion different from the fixed rail.

The middle end 202 of the fixed rail 200 can be connected between the one end 201 of the fixed rail 200 and the other end 203 of the fixed rail 200. The middle end 202 of the fixed rail 200 may be connected to the one end 201 of the fixed rail 200 at an angle of about 90 [deg.]. The middle end 202 of the fixed rail 200 may be connected to the other end 203 of the fixed rail 200 at an angle of about 45 degrees.

The second rolling ball 320 and the third rolling ball 330 disposed in the first space 150 may face each other in the diagonal direction. In one embodiment, the second rolling ball 320 and the third rolling ball 330 may be implemented with the same diameter. The first rolling ball 310 can be implemented smaller than the second rolling ball 320 and the third rolling ball 330.

The diameter of the first rolling ball 310 is 0.1% or more and 85% or less of the diameter of the second rolling ball 320, assuming that the diameters of the second rolling ball 320 and the third rolling ball 330 are the same. . When the diameter of the first rolling ball 310 is less than 0.1% of the diameter of the second rolling ball 320, the load is concentrated on the specific rolling ball. If the diameter of the first rolling ball 310 is smaller than the diameter of the second rolling ball 320, If the diameter exceeds 85% of the diameter of the ball 320, the volume of the first space 150 increases.

In other words, the diameter of the first rolling ball 310 included in the sliding device 20, which is advantageous for complex loading according to an embodiment of the present invention, is smaller than the diameter of the second rolling ball 320, The load bearing capacity may be increased without increasing the volume of the first rolling ball 150 and preferably the diameter of the first rolling ball 310 should not exceed 85% of the diameter of the second rolling ball 320 have.

A straight line connecting the center of the first rolling ball 310 and the center of the second rolling ball 320 is referred to as a first straight line L1 and a straight line connecting the center of the first rolling ball 310 and the center of the first rolling ball 310 And the straight line connecting the centers of the three rolling balls 330 may be referred to as a second straight line L2. When the first straight line L1 and the second straight line L2 are drawn so as to meet at the center of the first rolling ball 310, the diameter of the first rolling ball 310 is smaller than the diameter of the second rolling ball 320 The inclined angle formed by the first straight line L1 and the second straight line L2 may be less than 90 degrees. In addition, in the embodiment of the present invention, since the diameter of the first rolling ball 310 is not assumed to be zero, the inclined angle formed by the first straight line L1 and the second straight line L2 is 1 ° or more .

The other end 203 of the fixed rail 200 can contact the second and third rolling balls 320 and 330 in the first space 150. At this time, the other end 203 of the fixed rail 200 may be bent in a U shape. Therefore, the second rolling ball 320 and the third rolling ball 330 can be brought into contact with the opposite surfaces of the other end 203 of the fixed rail 200.

The first rolling ball 310 can contact the other end 203 of the fixed rail 200 in the first space 150. For example, if the first rolling ball 310 contacts the first surface 2031 of the other end 203 of the fixed rail 200, the second rolling ball 320 and the third rolling ball 330 It is possible to contact the first surface 2031 of the other end 203 of the fixed rail 200.

When a load is applied to the movable member 20, the bending portion internal space 2032 formed at the other end 203 of the fixed rail 200 can be deformed by elasticity. However, in the slide device 50 which is advantageous in complex loading according to an embodiment of the present invention, the other end 203 of the fixed rail 200 is bent in a U-shape, 2032 can be minimized. The deformation of the bending portion internal space 2032 is minimized because the amount of deflection of the movable member 20 due to the clearance change between the movable rail 100 and the fixed rail 200 due to the load generated by the movable member 20 is minimized .

FIG. 6 is a cross-sectional view illustrating a moving member and a fixing member having a slide device advantageous to complex loading according to an embodiment of the present invention.

Referring to FIG. 6, a slide apparatus 500 advantageous for complex loading according to an embodiment of the present invention can be attached between a fixing member 10 and a moving member 20, (20). The slide apparatus 500 advantageous for complex loading according to an embodiment of the present invention may include a movable rail 1100, a fixed rail 1200 and a middle rail 1300. [ The movable rail 1100 may be disposed at a lower portion of the movable member 20 and the fixed rail 1200 may be disposed at one side of the interior of the fixed member 10. [ The intermediate rail 1300 may be provided between the movable rail 1100 and the fixed rail 1200.

FIG. 7 is a perspective view of a movable rail according to an embodiment of the present invention, FIG. 8 is a perspective view of an intermediate rail according to an embodiment of the present invention, FIG. 9 is a perspective view of a fixed rail according to an embodiment of the present invention, 10 is a cross-sectional view illustrating a slide apparatus advantageous to complex loading according to an embodiment of the present invention.

7-10, a slide apparatus 500 advantageous for complex loading according to an embodiment of the present invention includes a movable rail 1100, a first rolling ball group 1310, 1320, 1330, a fixed rail 1200 , Second rolling ball groups 1340, 1350, 1360, and intermediate rails 1300. The first and second rolling ball groups 1340,

The movable rail 1100 may be disposed on the lower side of the movable member 20. A plurality of moving rails 1100 may be disposed on the lower side of the movable member 20. [ The movable member 20 and the movable rail 1100 can be fixed by fastening means. Since the movable rail 1100 is fixed to the lower portion of the movable member 20, when the movable rail 1100 moves, the movable member 20 can be moved in the same manner.

The end surface of the movable rail 1100 may be formed by bending both ends in an L-shape forming an angle of about 90 degrees. A first corner portion 1131, a second corner portion 1132 and a third corner portion 1133 may be formed in the inside of the movable rail 1100 in a sectional view.

One end of the first corner portion 1131 may be connected to one end of the second corner portion 1132 and the other end of the first corner portion 1131 may be connected to one end of the third corner portion 1133. The other end of the second corner portion 1132 may be connected to the first opening 1141. The other end of the third corner portion 1133 may be connected to the second opening 1142.

The first corner portion 1131, the second corner portion 1132, and the third corner portion 1133 of the movable rail 1100 may be included in the first space 1150. The upper right side of the first space 1150 may be the first corner portion 1131, the upper left side may be the second corner portion 1132, and the lower right side may be the third corner portion 1133.

The three corner portions 1131, 1132, and 1133 at which the first rolling ball groups 1310, 1320, and 1330 are in contact with each other are formed in a manner such that the first rolling ball groups 1310, 1320, Ways 1161, 1162, and 1163 may be formed.

The raceways 1161, 1162 and 1163 may be formed in the first space 1150 and the raceways 1161, 1162 and 1163 may be formed in the first raceway 1161, the second raceway 1162, And a third raceway 1163. The first raceway 1161 can be in rolling contact with the first rolling ball 1310 at the first corner 1131. The second raceway 1162 can come into rolling contact with the second rolling ball 1320 at the second corner portion 1132. [ The third raceway 1163 can come into rolling contact with the third rolling ball 1330 at the third corner 1133. The first raceway 1161, the second raceway 1162, and the third raceway 1163 may be formed in a round shape.

The first space 1150 may be opened in the downward direction. The intermediate rail 1300 may be positioned in the first space 1150 where the lower portion of the movable rail 1100 is opened. A plurality of cloud balls may be disposed in the first space 1150. The plurality of rolling balls may include the first rolling ball group 1310, 1320, 1330. For example, the first rolling ball group 1310, 1320, 1330 may include a first rolling ball 1310, a second rolling ball 1320 and a third rolling ball 1330.

The first rolling ball 1310 may be disposed at the first corner 1131. The first rolling ball 1310 can face the open side 1151 of the first space 1150 in the diagonal direction. And the second rolling ball 1320 may be disposed at the second corner portion 1132. The second rolling ball 1320 can face the open side 1151 of the first space 1150 in the downward direction. The third rolling ball 1330 may be disposed at the third corner 1133. The third rolling ball 1330 can face the open side 1151 of the first space 1150 in the lateral direction.

One end 1201 of the fixed rail 1200 can be attached to the fixing member 10 by fastening means. The other end 1203 of the fixed rail 1200 may be formed by bending both ends of the L shape in cross section. The other end 1203 of the fixed rail 1200 may have three corners inside thereof. The other end 1203 of the fixed rail 1200 can form a second space 1250 including three corner portions 1134, 1135, and 1136. [ The second space 1250 can be opened upward.

In the second space 1250, the second rolling ball group 1340, 1350, 1360 may be positioned. The other end 1203 of the fixed rail 1200 can form the second space 1250 while forming three corners and the other end 1230 of the fixed rail 1200 can be formed in the second space 1250. [ The second group of rolling balls 1340, 1350, and 1360 in rolling contact with the first group of rolling balls 1340, 1350, and 1360 may be disposed. Here, the second rolling ball group 1340, 1350, 1360 may include a fourth rolling ball 1340, a fifth rolling ball 1350, and a sixth rolling ball 1360.

The end face of the other end 1203 of the fixed rail 1200 may be formed by bending both ends in an L shape having an angle of about 90 degrees. The fourth corner portion 1134, the fifth corner portion 1135 and the sixth corner portion 1136 may be formed in the inside of the other end portion 1203 of the fixed rail 1200 in a sectional view.

One end of the fourth corner portion 1134 may be connected to one end of the fifth corner portion 1135 and the other end of the fourth corner portion 1134 may be connected to one end of the sixth corner portion 1136. The other end of the fifth corner portion 1135 may be connected to the one end 1201 of the fixed rail 1200. The other end of the sixth corner portion 1136 may be connected to the third opening 1152.

The fourth corner portion 1134, the fifth corner portion 1135 and the sixth corner portion 1136 of the fixed rail 1200 may be included in the second space 1250. The upper right side of the second space 1250 may be the sixth corner portion 1136, the lower left side may be the fifth corner portion 1135, and the lower right side may be the fourth corner portion 1134.

The three corner portions 1134, 1135, and 1136 at which the second rolling ball groups 1340, 1350, and 1360 contact with each other are arranged in a radial direction so that the second rolling ball groups 1340, 1350, Ways 1164, 1165, and 1166 may be formed. Raceways 1164, 1165, and 1166 may be formed in the second space 1250. The raceways 1164, 1165 and 1166 may include a fourth raceway 1164, a fifth raceway 1165 and a sixth raceway 1166. The fourth raceway 1164 can come into rolling contact with the fourth rolling ball 1340 at the fourth corner 1134. The fifth raceway 1165 can come into rolling contact with the fifth rolling ball 1350 at the fifth corner 1135. The sixth raceway 1166 can be in rolling contact with the sixth rolling ball 1360 at the sixth corner portion 1136. The fourth raceway 1164, the fifth raceway 1165, and the sixth raceway 1166 may be formed in a round shape.

The second space 1250 can be opened upward. The intermediate rail 1300 can be positioned in the second space 1250 where the upper portion of the other end 1203 of the fixed rail 1200 is opened. A plurality of cloud balls may be disposed in the second space 1250. The plurality of rolling balls may include a second rolling ball group. For example, the second rolling ball group 1340, 1350, 1360 may include a fourth rolling ball 1340, a fifth rolling ball 1350, and a sixth rolling ball 1360.

The fourth rolling ball 1340 may be disposed in the fourth corner portion 1134. The fourth rolling ball 1340 may face the open side 1251 of the second space 1250 in the diagonal direction. The fifth rolling ball 1350 may be disposed at the fifth corner portion 1135. The fifth rolling ball 1350 can face the open side 1251 of the second space 1250 in the upward direction. The sixth rolling ball 1360 may be disposed at the sixth corner portion 1136. The sixth rolling ball 1360 can face the open side 1251 of the second space 1250 in the lateral direction.

The middle rail 1300 may include an upper end 1302 of the middle rail 1300 and a lower end 1304 of the middle rail 1300. The upper end 1302 of the middle rail 1300 is embedded in the first space 1150 and can make a rolling contact with the first rolling ball group 1310, 1320, 1330. The lower end 1304 of the intermediate rail 1300 is embedded in the second space 1250 and can make a rolling contact with the second rolling ball group 1340, 1340, 1360.

The upper end 1302 of the intermediate rail 1300 may be located inside the moving rail 1100. The upper end portion 1302 of the middle rail 1300 can be in contact with the first rolling ball 1310 so that the folded surface bent to abut the third rolling ball 1330 facing the second rolling ball 1320 on both sides . The lower end portion 1304 of the intermediate rail 1300 is positioned inside the fixed rail 1200 and the sixth rolling ball 1360 facing the fifth rolling ball 1350 is bent 4 cloud ball 1340. [0052]

The intermediate portion of the intermediate rail 1300 is located outside the first space 1150 and the second space 1250 and the upper portion 1302 of the intermediate rail 1300 and the lower portion 1304 of the intermediate rail 1300 Can be connected. In one embodiment, the upper end 1302, the intermediate portion 1306 and the lower end 1304 of the intermediate rail 1300 may be integrally formed by bending one elastic material. The upper end 1302 of the intermediate rail 1300 may be formed by being bent in a U-shape. The inner space is deformed by elasticity when the upper end portion 1302 of the intermediate rail 1300 contacts the first rolling ball 1310, the second rolling ball 1320 and the third rolling ball 1330 The folded surface can be brought into close contact with each other.

The slide device 500 advantageous in complex loading according to an embodiment of the present invention is configured such that the upper end portion 1302 of the intermediate rail 1300 is bent in a U- Can be minimized. Minimization of the deformation of the bending portion inner space 1303 means that the amount of deflection of the movable member 20 due to the clearance change between the movable rail 1100 and the intermediate rail 1300 is minimized due to the load generated by the movable member 20 .

The slide device 500 advantageous in complex loading according to an embodiment of the present invention is configured such that the lower end portion 1304 of the intermediate rail 1300 is bent in a U- Can be minimized. The fact that the deformation of the bending portion internal space 1307 is minimized means that the deflection amount of the movable member 20 due to the clearance change between the intermediate rail 1300 and the fixed rail 1200 due to the load generated by the movable member 20 is minimized .

The second rolling ball 1320 and the third rolling ball 1330 disposed in the first space 1150 can face each other in the diagonal direction. In one embodiment, the second cloud ball 1320 and the third cloud ball 1330 may be implemented with the same diameter.

The first rolling ball 1310 can be realized to be smaller than the second rolling ball 1320 and the third rolling ball 1330. [ The diameter of the first rolling ball 1310 is 0.1% or more and 85% or less of the diameter of the second rolling ball 1320, assuming that the diameters of the second rolling ball 1320 and the third rolling ball 1330 are the same. .

When the diameter of the first rolling ball 1310 is less than 0.1% of the diameter of the second rolling ball 1320, the load is concentrated on the specific rolling ball. If the diameter of the first rolling ball 1310 is larger than the diameter of the second rolling ball 1320 If the diameter of the ball 1320 exceeds 85% of the diameter of the ball 1320, the volume of the first space 1150 increases.

In other words, the diameter of the first rolling ball 1310 included in the sliding device advantageous to the composite load according to the embodiment of the present invention is smaller than the diameter of the second rolling ball 1320, It is necessary to make the diameter of the first rolling ball 1310 not to exceed 85% of the diameter of the second rolling ball 1320.

A straight line connecting the center of the first rolling ball 1310 and the center of the second rolling ball 1320 is referred to as a first straight line L3 and a straight line connecting the center of the first rolling ball 1310 and the center of the first rolling ball 1320 3 cloud ball 1330 may be referred to as a second straight line L4. When the first straight line L3 and the second straight line L4 are drawn so as to meet at the center of the first rolling ball 1310, the diameter of the first rolling ball 1310 is smaller than the diameter of the second rolling ball 1320 The inclined angle formed by the first straight line L3 and the second straight line L4 may be less than 90 degrees. In addition, in the embodiment of the present invention, since the diameter of the first rolling ball 1310 is not assumed to be 0, the inclined angle formed by the first straight line and the second straight line may be 1 ° or more.

In the same manner, the fifth rolling ball 1350 and the sixth rolling ball 1360 disposed in the second space 1250 can face each other in the diagonal direction. In one embodiment, the fifth rolling ball 1350 and the sixth rolling ball 1360 can be implemented with the same diameter.

The fourth rolling ball 1340 can be implemented smaller than the fifth rolling ball 1350 and the sixth rolling ball 1360. The diameter of the fourth rolling ball 1340 is at least 0.1% and not more than 85% of the diameter of the fifth rolling ball 1350, assuming that the diameters of the fifth rolling ball 1350 and the sixth rolling ball 1360 are the same. .

When the diameter of the fourth rolling ball 1340 is less than 0.1% of the diameter of the fifth rolling ball 1350, the load is concentrated on the specific rolling ball. When the diameter of the fourth rolling ball 1340 is larger than the diameter of the fifth rolling ball 1340 When the diameter of the ball 1350 exceeds 85%, the volume of the second space 1250 increases.

In other words, the diameter of the fourth rolling ball 1340 included in the sliding device advantageous to the composite load according to the embodiment of the present invention is smaller than the diameter of the fifth rolling ball 1350, It is necessary to ensure that the diameter of the fourth rolling ball 1340 does not exceed 85% of the diameter of the fifth rolling ball 1350.

A straight line connecting the center of the fourth cloud ball 1340 and the center of the fifth cloud ball 1350 is referred to as a third straight line L5 and a straight line connecting the center of the fourth cloud ball 1340 and the center And the straight line connecting the center of the sixth rolling ball 1360 may be referred to as a fourth straight line L6. When the third straight line L5 and the fourth straight line L6 are drawn so as to meet at the center of the fourth rolling ball 1340, the diameter of the fourth rolling ball 1340 is smaller than the diameter of the fifth rolling ball 1350 The inclined angle formed by the third straight line and the fourth straight line may be less than 90 degrees. In addition, in the embodiment of the present invention, since the diameter of the fourth rolling ball 1340 is not assumed to be 0, the inclined angle formed by the third straight line L5 and the fourth straight line L6 is 1 ° or more .

11 is a cross-sectional view illustrating a slide apparatus advantageous to complex loading according to another embodiment of the present invention.

11, the upper end 1302 of the middle rail 1300 of the slide apparatus 500 advantageous to the composite load according to another embodiment of the present invention is inserted into the first space 1150 and the middle rail 1300 May be parallel to the direction in which the lower end 1304 of the first space 1250 is inserted into the second space 1250. Accordingly, the opening surface of the first space 1150 and the opening surface of the second space are offset from each other, so that the torsion load can be evenly dispersed.

12 is a cross-sectional view illustrating a slide device advantageous to composite loading according to another embodiment of the present invention.

12, the upper end portion 1302 of the middle rail 1300 of the slide apparatus 500, which is advantageous in complex loading according to another embodiment of the present invention, May be parallel to the direction in which the lower end 1304 of the first space 1250 is inserted into the second space 1250.

11, the end 1308 of the upper end 1302 of the middle rail 1300 is connected to the third rolling ball 1330 of the intermediate rail 1300 when the upper end 1302 of the intermediate rail 1300 is embedded in the first space 1150. [ ) Can be bent. When the lower end portion 1304 of the intermediate rail 1300 is inserted into the second space 1250, the distal end 1309 of the lower end portion 1304 of the intermediate rail 1300 is positioned at a position where the sixth rolling ball 1360 As shown in Fig.

13 is a cross-sectional view illustrating a slide apparatus advantageous to composite loading according to another embodiment of the present invention.

Referring to FIG. 13, the movable rail 1100 and the fixed rail 1200 of the slide apparatus 500, which are advantageous for complex loading according to an embodiment of the present invention, can be implemented in a similar manner. 10, one end 1201 of the fixed rail 1200 is removed from the fixed rail 1200 and the end face of the movable rail 1100 is symmetric with respect to the end face and the horizontal plane of the fixed rail 1200 . At this time, the open lower side of the movable rail 1100 and the open upper side of the fixed rail 1200 can face each other. It is apparent to a person skilled in the art that the open lower side of the movable rail 1100 and the open upper side of the fixed rail 1200 may face each other staggered as shown in Fig. When using the slide apparatus 500 favorable to the composite load shown in FIG. 13, a separate racket (not shown) may be used to fasten the stationary rail 1200 to the stationary member 10. Here, the bracket may be a means for connecting the fixed rail 1200 and the fixing member 10, and the scope of the present invention is not limited to a particular racket.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

10: Fixing member (furniture)
20: moving member (drawer)
50: Slide device favorable to composite load
100: moving rail
131: first corner portion
132: second corner portion
133: third corner portion
141: First Side
142: The second aspect
150: First space
151: opening side direction
161: 1st raceway
162: 2nd raceway
163: Third raceway
200: fixed rail
201: one end of the fixed rail
202: Middle end of the fixed rail
203: the other end of the fixed rail
2031: First side of the other end of the fixed rail
2032: an inner space of the bent portion formed at the other end of the fixed rail
300: 1st cloud ball group
310: 1st cloud ball
320: 2nd cloud ball
330: Third cloud ball
500: Slide device favorable to composite load
1100: movable rail
1131: first corner portion
1132: second corner portion
1133: third corner portion
1150: First space
1161: 1st raceway
1162: 2nd raceway
1166: Third raceway
1134: first corner portion
1135: second corner portion
1136: third corner portion
1200: fixed rail
1201: One end of the fixed rail
1203: the other end of the fixed rail
1250: Second space
1251: opening side of the second space
1300: Middle rail
1301: first side of the upper end of the middle rail
1302: upper end of the middle rail
1303: an inner space of the bent portion formed at the upper end of the intermediate rail
1304: Lower end of the middle rail
1305: the first side of the lower end of the middle rail
1306: Middle part of the middle rail
1307: an inner space of the bent portion formed at the lower end of the intermediate rail
1308: End of upper end of intermediate rail
1309: End of the lower end of the middle rail
1310: first cloud ball in the first space
1320: second cloud ball in the first space
1330: third cloud ball in the first space
1340: fourth cloud ball in the second space
1350: fifth cloud ball in the second space
1360: sixth cloud ball in the second space
1151: opening side of the first space
U: User
L1: 1st straight line
L2: second straight line
L3: First straight line
L4: second straight line
L5: Third straight line
L6: fourth straight line

Claims (17)

1. A slide device for attaching a movable member to a stationary member and connecting the movable member to the stationary member so that the movable member can slide,
A movable rail disposed on a lower side of the moving member and including a first space formed by bending both ends of an L shape in a cross section so as to form three corners inside thereof and opened in a downward direction;
A first rolling ball group located in three corners formed in the inside of the moving rail and rolling contact with the moving rail to provide a sliding movement to the moving rail;
Wherein the first rolling ball group includes a first rolling ball, a second rolling ball and a third rolling ball; And
A fixed rail having one end attached to the fixing member and the other end embedded in the first space and in rolling contact with the first rolling ball group;
/ RTI >
The diameter of the first rolling ball not mating in the diagonal direction in the first space is less than the diameter of the second rolling ball and the third rolling ball facing each other in a diagonal direction,
Slide device advantageous for composite loading.
The method according to claim 1,
And the diameter of the second rolling ball is equal to the diameter of the third rolling ball.
Slide device advantageous for composite loading.
3. The method of claim 2,
Wherein the diameter of the first rolling ball is at least 0.1% of the diameter of the second rolling ball and is advantageous to a composite load of at most 85%.
The method according to claim 1,
A first straight line connecting the center of the first cloud ball and the center of the second cloud ball
Wherein the inclined angle formed by the center of the first rolling ball and the second straight line connecting the center of the third rolling ball is 1 DEG or more and less than 90 DEG.
Slide device advantageous for composite loading.
The method according to claim 1,
The other end of the fixed rail is bent in a U-shape,
Wherein the first rolling ball, the second rolling ball, and the third rolling ball are brought into close contact with the folded surface so as to minimize the deformation of the inner space by elasticity when contacting the first rolling ball, the second rolling ball and the third rolling ball.
Slide device advantageous for composite loading.
The method according to claim 1,
Wherein a raceway is formed so that the first rolling ball group is in rolling contact with the three corner portions at which the first rolling ball group is in contact.
Slide device advantageous for composite loading.
1. A slide device for attaching a movable member to a stationary member and connecting the movable member to the stationary member so that the movable member can slide,
A movable rail disposed on a lower side of the moving member and including a first space formed by bending both ends of an L shape in a cross section so as to form three corners inside thereof and opened in a downward direction;
A first rolling ball group located in three corners formed in the inside of the moving rail and rolling contact with the moving rail to provide a sliding movement to the moving rail;
Wherein the first rolling ball group includes a first rolling ball, a second rolling ball and a third rolling ball;
A stationary rail having one end attached to the fixing member and the other end opened in an upward direction including a second space in which both ends of the L shape are bent in a sectional shape to form three corners inside;
And a second rail which is located at three corners formed inside the other end of the fixed rail and which is in rolling contact with the other end of the stationary rail,
Wherein the second cloud ball group includes a fourth cloud ball, a fifth cloud ball, and a sixth cloud ball;
The upper end portion being embedded in the first space and being in rolling contact with the first rolling ball group and the lower end being embedded in the second space and in rolling contact with the second rolling ball group;
/ RTI >
The diameter of the first rolling ball not mating in the diagonal direction in the first space is smaller than the diameter of the second rolling ball and the third rolling ball facing each other in the diagonal direction,
The diameter of the fourth rolling ball not mating in the diagonal direction in the second space is less than the diameter of the fifth rolling ball and the sixth rolling ball facing each other in a diagonal direction,
Slide device advantageous for composite loading.
8. The method of claim 7,
And the diameter of the second rolling ball is equal to the diameter of the third rolling ball.
Slide device advantageous for composite loading.
9. The method of claim 8,
Wherein the diameter of the first rolling ball is 0.1% or more and 85% or less of the diameter of the second rolling ball.
Slide device advantageous for composite loading.
8. The method of claim 7,
And the diameter of the fifth rolling ball is equal to the diameter of the sixth rolling ball.
Slide device advantageous for composite loading.
11. The method of claim 10,
Wherein the diameter of the fourth rolling ball is at least 0.1% and not more than 85% of the diameter of the fifth rolling ball.
Slide device advantageous for composite loading.
8. The method of claim 7,
A first straight line connecting the center of the first cloud ball and the center of the second cloud ball
Wherein the inclined angle formed by the center of the first rolling ball and the second straight line connecting the center of the third rolling ball is greater than or equal to 1 ° and less than 90 °.
Slide device advantageous for composite loading.
8. The method of claim 7,
And a third straight line connecting the center of the fourth cloud ball and the center of the fifth cloud ball
Wherein the inclined angle formed by the center of the fourth cloud ball and the fourth straight line connecting the center of the sixth cloud ball is 1 ° or more and less than 90 °.
Slide device advantageous for composite loading.
8. The method of claim 7,
The three corner portions, at which the first rolling ball group is in contact, form a raceway so that the first rolling ball group can come into rolling contact with each other,
Wherein a raceway is formed so that the second rolling ball group can come into rolling contact with the three corner portions at which the second rolling ball group is in contact.
Slide device advantageous for composite loading.
8. The method of claim 7,
The intermediate rail
An upper end located in the inside of the moving rail and having a bent surface folded so as to contact both side surfaces of the third rolling ball facing the second rolling ball with the first rolling ball;
A lower end located inside the fixed rail and having a curved surface folded so as to contact both side surfaces of the sixth rolling ball facing the fifth rolling ball in contact with the fourth rolling ball; And
A middle part located outside the first space and the second space and connecting the upper part and the lower part;
, ≪ / RTI &
Wherein the upper end portion, the intermediate portion, and the lower end portion are integrally formed by bending a single elastic material.
Slide device advantageous for composite loading.
16. The method of claim 15,
The upper end portion is bent in a U-shape,
Characterized in that the folded surface is brought into close contact with the first rolling ball, the second rolling ball and the third rolling ball so as to minimize the deformation of the inner space by elasticity when the rolling balls come into contact with the first rolling ball,
Slide device advantageous for composite loading.
16. The method of claim 15,
The lower end portion is bent in a U-shape,
And the curved surface is brought into close contact with the fourth rolling ball, the fifth rolling ball and the sixth rolling ball so as to minimize the deformation of the inner space by elasticity when the fourth rolling ball, the fifth rolling ball,
Slide device advantageous for composite loading.

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