Guide rail slider and slider device

Abstract

A guide rail slider (2) comprises: a base part (20); and first rollers (31) and second rollers (411) that are provided on both sides of the base part (20) in a first direction (Y). The first rollers (31) are each capable of rotating about the axis direction, which is a second direction (X) orthogonal to the first direction (Y), and protrude relative to the base part (20) toward one side (Z1) in a third direction (Z) orthogonal to the first direction (Y) and the second direction (X). The second rollers (411) are each capable of rotating about the axis direction, which is the second direction (X), and protrude toward the other side (Z2) in the third direction (Z).

Description

Guide rail slider and slider device

[0001] This application claims priority to Japanese Patent Application No. 2024-117053, filed on July 22, 2024, the contents of which are incorporated herein by reference.

[0002] A slider device including a guide rail and a movable body such as a slider guided by the guide rail has been known. Patent Document 1 listed below proposes a slider device including rollers whose axes are different in distance from a guide surface along which the slider is guided.

[0003] Japanese Patent No. 3635770

[0004] However, the slider device disclosed in Patent Document 1 has a problem in that it is not possible to sufficiently suppress rattle of the slider when the movable body is tilted relative to the guide rail.

[0005] Therefore, the present disclosure has been made in consideration of the above circumstances, and provides a slider for a guide rail and a slider device that can suppress rattle.

[0006] In order to achieve the above object, the present disclosure employs the following means: That is, a slider of a guide rail according to a first aspect of the present disclosure includes a base and a first roller and a second roller provided on both sides of the base in a first direction, the first roller being rotatable about a second direction orthogonal to the first direction as an axial direction and protruding from the base to one side in a third direction orthogonal to the first and second directions, and the second roller being rotatable about the second direction as an axial direction and protruding to the other side in the third direction.

[0007] In the slider for the guide rail configured in this manner, the first rollers are provided on both sides of the base in the first direction and protrude from the base to one side in the third direction. The second rollers are provided on both sides of the base in the first direction and protrude from the base to the other side in the third direction. When the first roller on one side of the slider in the first direction is tilted to approach one side in the third direction, the first roller on one side of the first direction and the second roller on the other side of the first direction abut on the guide surface of the guide rail. When the second roller on one side of the slider in the first direction is tilted to approach the other side in the third direction, the second roller on one side of the first direction and the first roller on the other side of the first direction abut on the guide surface of the guide rail. Therefore, because both sides of the slider in the first direction abut on the guide surface of the guide rail, rattle of the slider relative to the guide rail can be suppressed.

[0008] In addition, in the slider of the guide rail according to the second aspect of the present disclosure, the base portion may have an outer wall portion that covers the sides of the first roller and the second roller in the second direction.

[0009] In the slider of the guide rail configured in this manner, the sides of the first roller and the second roller in the second direction are covered by the outer wall portion, thereby preventing the sides of the first roller and the second roller in the second direction from contacting the guide rail.

[0010] In addition, the slider of the guide rail according to the third aspect of the present disclosure may have a through hole formed in the base portion that penetrates in the third direction, and at least one of the first roller and the second roller may be arranged in the through hole.

[0011] In the guide rail slider configured in this manner, at least one of the first roller and the second roller is disposed in a through hole formed in the base portion so as to penetrate in the third direction, thereby preventing at least one of the first roller and the second roller from protruding significantly from the base portion, and allowing the guide rail slider to be designed compactly.

[0012] A guide rail slider according to a fourth aspect of the present disclosure includes the guide rail slider described above and a guide rail that guides the guide rail slider.

[0013] In the slider for the guide rail configured in this manner, the first rollers are provided on both sides of the base in the first direction and protrude from the base to one side in the third direction. The second rollers are provided on both sides of the base in the first direction and protrude from the base to the other side in the third direction. When the first roller on one side of the slider in the first direction is tilted to approach one side in the third direction, the first roller on one side of the first direction and the second roller on the other side of the first direction abut on the guide surface of the guide rail. When the second roller on one side of the slider in the first direction is tilted to approach the other side in the third direction, the second roller on one side of the first direction and the first roller on the other side of the first direction abut on the guide surface of the guide rail. Therefore, because both sides of the slider in the first direction abut on the guide surface of the guide rail, rattle of the slider relative to the guide rail can be suppressed.

[0014] Furthermore, in a slider device according to a fifth aspect of the present disclosure, the guide rail has a first installation surface against which the first roller can abut and a second installation surface against which the second roller can abut, and in a first configuration, the first roller on one side in the first direction abuts the first installation surface while the second roller on the other side in the first direction abuts the second installation surface, and in a second configuration, the first roller on the other side in the first direction abuts the first installation surface while the second roller on one side in the first direction abuts the second installation surface.

[0015] In the slider device configured in this manner, when the first roller on one side of the slider in the first direction is tilted so as to approach one side in the third direction, the first roller on one side in the first direction abuts the first installation surface, and the second roller on the other side in the first direction abuts the second installation surface. When the slider is tilted so as to approach the other side in the third direction, the second roller on one side in the first direction abuts the second installation surface, and the first roller on the other side in the first direction abuts the first installation surface. Thus, both sides of the slider in the first direction abut the first and second installation surfaces of the guide rail, thereby suppressing rattling of the slider relative to the guide rail.

[0016] According to the slider for the guide rail and the slider device according to the present disclosure, rattle of the slider can be suppressed.

[0017] FIG. 1 is a perspective view of a slider device according to an embodiment of the present disclosure, with a portion of the guide rail broken away; FIG. 2 is a cross-sectional view of a slider device according to an embodiment of the present disclosure, perpendicular to a first direction, taken along line II-II of FIG. 1; FIG. 3 is a cross-sectional view of a slider device according to an embodiment of the present disclosure, perpendicular to a second direction, taken along line III-III of FIG. 1; FIG. 4 is a perspective view of a slider of a guide rail according to an embodiment of the present disclosure; FIG. 5 is an exploded perspective view of a slider of a guide rail according to an embodiment of the present disclosure; FIG. 6 is a view of a slider of a guide rail according to an embodiment of the present disclosure, viewed from one side in a third direction; FIG. 7 is a view of a slider of a guide rail according to an embodiment of the present disclosure, viewed from the other side in the third direction; FIG. 8 is a view of a base of a slider of a guide rail according to an embodiment of the present disclosure, viewed from one side in the third direction; FIG. 9 is a view of a slider device according to an embodiment of the present disclosure, where a rotational force acts on the slider around one side of the axial direction, with the second direction being the axial direction; and FIG. 10 is a view of a slider device according to an embodiment of the present disclosure, where a rotational force acts on the slider around the other side of the axial direction, with the second direction being the axial direction.

[0018] A guide rail slider and a slider device according to an embodiment of the present disclosure will be described with reference to the drawings. As shown in Fig. 1, the slider device 100 includes a guide rail 1 and a guide rail slider (hereinafter simply referred to as "slider") 2. The slider 2 is guideable along the guide rail 1.

[0019] (Guide rail) The guide rail 1 is an elongated member. In the following description, the length direction of the guide rail 1 is referred to as the length direction Y. The direction perpendicular to the length direction Y and along the opening S2 of the guide rail 1 is referred to as the width direction X. The direction perpendicular to the length direction Y and the width direction X is referred to as the up-down direction Z. In the up-down direction Z, the side where the opening S2 of the guide rail 1 is located is referred to as the upper side Z1, and the opposite side is referred to as the lower side Z2. The center side of the width direction X is referred to as the inner side of the width direction X, and the side opposite the center of the width direction X is referred to as the outer side of the width direction X. The width direction X corresponds to the second direction in the claims. The length direction Y corresponds to the first direction in the claims. The up-down direction Z corresponds to the third direction in the claims. The upper side Z1 corresponds to one side of the third direction in the claims. The lower side Z2 corresponds to the other side of the third direction in the claims.

[0020] 2, the guide rail 1 has a generally rectangular cross section perpendicular to the longitudinal direction Y. The guide rail 1 has a bottom wall 11, a pair of side walls 12, 12, and a pair of edge walls 13, 13.

[0021] The bottom wall 11 is formed in a flat plate shape. The plate surface of the bottom wall 11 faces the vertical direction Z. The bottom wall 11 may be formed with mounting holes (not shown) so that screws inserted through the mounting holes are threaded into the mounting object. The bottom wall 11 may be formed with locking portions that are locked to the mounting object.

[0022] The pair of side walls 12, 12 extend upward Z1 from both sides of the bottom wall 11 in the width direction X. The side walls 12 are formed in a flat plate shape. The plate surfaces of the side walls 12 face the width direction X.

[0023] The pair of edge walls 13, 13 extend inward in the width direction X from the upper end of each side wall 12. The edge wall 13 is formed in a flat plate shape. The plate surface of the edge wall 13 faces the up-down direction Z.

[0024] The space formed by the bottom wall 11, the pair of side walls 12, 12, and the pair of edge walls 13, 13 is a slide space S1 in which the slider 2 is disposed. Between the ends of the pair of edge walls 13, 13 is an opening S2 that connects the slide space S1 to the outside.

[0025] (Slider) As shown in FIG. 5 , the slider 2 includes a base 20 , a pair of upper rolling members 30 , a pair of lower rolling members 40 , and a nut member 50 .

[0026] As shown in FIG. 4 , the base 20 has an upper upper surface portion 21 , a pair of upper lower surface portions 22 , 22 , and a pair of outer wall portions 23 , 23 .

[0027] The upper upper surface portion 21 is disposed at the center of the width direction X of the base 20. An attachment hole 211 is formed in the upper upper surface portion 21, penetrating in the up-down direction Z. The attachment holes 211 are formed in two locations spaced apart in the longitudinal direction Y. The number of attachment holes 211 can be set as appropriate. A connecting member (not shown) is attached to the attachment hole 211, and the connecting member is attached to an object to be moved (not shown), allowing the object to be moved in the longitudinal direction Y together with the slider 2.

[0028] The upper-side lower surface portions 22 are respectively arranged on both outer sides in the width direction X of the upper-side upper surface portion 21. The upper surface 22a of the upper-side lower surface portion 22 is arranged below the upper surface 21a of the upper-side upper surface portion 21, at a position Z2. A deformation induction hole 221 that penetrates in the up-down direction Z is formed near the outer end portion 22b of the upper-side lower surface portion 22 in the width direction X. The deformation induction hole 221 has a shape that is elongated in the length direction Y.

[0029] The outer wall portion 23 extends downward from the end portion 22b of the upper lower step surface portion 22. At both ends of the lower end of the outer wall portion 23 in the longitudinal direction Y, inclined portions 231 are formed so as to gradually slope upward Z1 toward the end portions in the longitudinal direction Y. At the center of the outer wall portion 23 in the longitudinal direction Y, a recessed portion 232 is formed that is recessed upward. The recessed portion 232 is in communication with the deformation guide hole 221. At the lower end of the outer wall portion 23, a flat portion 235 extending in the longitudinal direction Y is formed in the portion between the inclined portion 231 and the recessed portion 232.

[0030] An outer protrusion 233 that protrudes outward in the width direction X is provided above the recess 232 in the center of the length direction Y of the outer wall 23. As shown in Fig. 6, the outer protrusion 233 is curved so as to bulge outward in the width direction X as it approaches the center of the length direction Y. The outer protrusion 233 has a protruding end 233a that bulges outward in the width direction X most at and near the center of the length direction Y.

[0031] The outer wall portion 23 is provided with an inner protrusion 234 at the center in the longitudinal direction Y, which protrudes inward of the deformation guide hole 221. The inner protrusion 234 is curved so as to bulge inward in the width direction X as it approaches the center in the longitudinal direction Y.

[0032] As shown in FIG. 2 , the protruding end 233 a of the outer protrusion 233 abuts against the inner surface 12 a of the side wall 12 of the guide rail 1, facing the slide space S1. The protruding end 233 a on both sides in the width direction X abuts against the inner surface 12 a of the side wall 12, thereby restricting movement of the slider 2 in both directions in the width direction X relative to the guide rail 1. Furthermore, the deformation guide hole 221 is formed in the upper-lower surface portion 22, so that the outer wall 23 is elastically deformed inward in the width direction X, and the protruding end 233 a of the outer protrusion 233 abuts firmly against the inner surface 12 a of the side wall 12. This restricts rattle of the slider 2 in both directions in the width direction X relative to the guide rail 1. The inner protrusion 234 is provided on the inner peripheral surface of the deformation guide hole 221, ensuring the strength of the portion of the outer wall 23 outside the deformation guide hole 221 in the width direction X.

[0033] 5, at both ends of the base 20 in the length direction Y, a shaft recess 201 is formed in the center in the width direction X, recessing downward. The shaft recess 201 has an elongated shape in the width direction X. The upper surface of the shaft recess 201 is formed in a downwardly recessed arc shape.

[0034] At both ends of the base 20 in the length direction Y, roller arrangement holes 202 are formed on the outer sides in the width direction X, penetrating in the up-down direction Z. The roller arrangement holes 202 are connected to the shaft recesses 201. The roller arrangement holes 202 correspond to through holes in the claims.

[0035] 7, an upwardly recessed accommodating recess 241 is formed in the lower part of the base 20. The accommodating recess 241 accommodates a lower rolling member 40 and a nut member 50, which will be described later.

[0036] As shown in FIG. 4, the outer wall portion 23 is formed with a pair of mounting holes 236, 236 and a pair of mounting holes 237, 237 penetrating in the width direction X.

[0037] The pair of mounting holes 236, 236 are arranged above the inclined portion 231 of the outer wall portion 23. The pair of mounting holes 236, 236 are arranged on both sides in the longitudinal direction Y of the outer wall portion 23. The mounting holes 236 communicate with the roller arrangement hole 202 and the shaft recess 201.

[0038] The pair of mounting holes 237, 237 are arranged above the flat portion 235 of the outer wall portion 23. The pair of mounting holes 237, 237 are arranged on both sides of the outer wall portion 23 in the longitudinal direction Y. Each mounting hole 237 is arranged further inward in the longitudinal direction Y than the mounting hole 236 and further outward in the longitudinal direction Y than the recess 232. The mounting hole 237 is arranged below the mounting hole 236 in the direction Z2. The mounting hole 237 communicates with an accommodating recess 241 formed in the lower part of the base 20.

[0039] 5, the upper rolling member 30 has a pair of upper rollers 31, 31 and an upper shaft portion 32. The upper roller 31 corresponds to a first roller in the claims.

[0040] The upper roller 31 is formed in a cylindrical shape with its axis aligned with the width direction X. A bearing hole 311 is formed inside the upper roller 31, penetrating in the width direction X. The bearing hole 311 is formed in a circular shape in a cross section perpendicular to the width direction X.

[0041] The upper shaft portion 32 is formed in a cylindrical shape extending in the width direction X. Both ends of the upper shaft portion 32 are inserted into and fixed to the bearing holes 311 of the upper roller 31.

[0042] As shown in Fig. 6, the upper roller 31 is disposed in a roller disposition hole 202 of the base 20. The upper shaft portion 32 is disposed in a shaft recess 201. The upper portions of the upper roller 31 and the upper shaft portion 32 are exposed from the base 20. As shown in Fig. 7, the lower portion of the upper roller 31 is exposed from the base 20. The lower portion of the upper shaft portion 32 is not exposed from the base 20. As shown in Fig. 4, the outer sides of the upper roller 31 in the width direction X are covered by the upper shaft portion 32 and are not exposed. The portion of the upper shaft portion 32 that protrudes further outward in the width direction X than the upper roller 31 is rotatably supported in a mounting hole 236 of the base 20.

[0043] The upper rolling members 30 are provided on both sides of the base 20 in the longitudinal direction Y. The upper rolling members 30 are rotatable about the width direction X as the axial direction. As shown in Figure 3, the upper rollers 31 have upper surfaces 22a of the upper lower step surface portions 22 of the base 20 protruding upward Z1. The lower rollers 31 have lower surfaces protruding downward Z2 from the inclined portions 231 of the base 20.

[0044] As shown in FIG. 5 , the lower rolling member 40 has a lower roller member 41 and a lower shaft portion 42 .

[0045] The lower roller member 41 has a pair of lower rollers 411, 411 and a connecting portion 412. The lower roller 411 corresponds to the second roller in the claims.

[0046] The lower roller 411 is formed in a cylindrical shape with its axis directed in the width direction X. The pair of rollers 411, 411 are arranged at a distance in the width direction X. The connecting portion 412 connects the pair of lower rollers 411, 411. A bearing hole 413 that penetrates in the width direction X is formed inside the pair of lower rollers 411, 411 and the connecting portion 412. The bearing hole 413 is a through hole that communicates between the pair of lower rollers 411, 411 and the connecting portion 412. The bearing hole 413 is formed in a circular shape in a cross section perpendicular to the width direction X.

[0047] The lower shaft portion 42 is formed in a cylindrical shape extending in the width direction X. The lower shaft portion 42 is inserted into and fixed to a bearing hole 413 that communicates with the pair of lower rollers 411, 411 and the connecting portion 412.

[0048] As shown in Fig. 7 , the lower roller member 41 is disposed in the accommodation recess 241 of the base 20. The lower portions of the pair of lower rollers 411, 411 of the lower roller member 41 and the lower portion of the connecting portion 412 are exposed from the base 20. As shown in Fig. 6 , the upper portions of the pair of lower rollers 411, 411 of the lower roller member 41 and the upper portion of the connecting portion 412 are not exposed from the base 20. As shown in Fig. 4 , the outer sides of the lower rollers 411 in the width direction X are covered by the upper shaft portion 32 and are not exposed. The portions of the lower shaft portion 42 that protrude further outward in the width direction X than the lower rollers 411 are rotatably supported in the mounting holes 237 of the base 20.

[0049] The lower rolling members 40 are provided on both sides of the base 20 in the longitudinal direction Y. The lower rolling members 40 are arranged more inward in the longitudinal direction Y of the base 20 than the upper rolling members 30. The lower rolling members 40 are rotatable around the axial direction, with the width direction X as the axial direction. As shown in Figure 7, the lower part of the lower roller member 41 protrudes downward Z2 from the upper surface 241a of the accommodation recess 241 of the base 20.

[0050] 3, the upper shaft portion 32 is positioned higher in the Z1 direction than the lower shaft portion 42. As a result, the lower end of the upper roller 31 is positioned higher in the Z1 direction than the lower end of the lower roller 411. The upper end of the upper roller 31 is positioned higher in the Z1 direction than the upper end of the lower roller 411. The lower portion of the lower roller 411 protrudes downward in the Z2 direction from the flat portion 235 of the base 20.

[0051] As shown in FIG. 5 , the nut member 50 has a base plate portion 51 , a pair of nut portions 52 , 52 , and a pair of fixing hole portions 53 , 53 .

[0052] The substrate portion 51 is formed in a flat plate shape. The plate surface of the substrate portion 51 faces the up-down direction Z. As shown in Fig. 7 , the substrate portion 51 is disposed along the upper surface 241a of the accommodating recess 241 of the base 20. The substrate portion 51 is disposed above the lower rolling member 40 in the Z1 direction.

[0053] As shown in FIG. 5 , the nut portion 52 is provided on both sides of the base plate portion 51 in the longitudinal direction Y. The nut portion 52 protrudes upward Z1 from the base plate portion 51. The nut portion 52 is fitted into the mounting hole 211 of the base portion 20. The nut portion 52 is formed in a cylindrical shape with its axial direction being the vertical direction Z. A female thread is formed on the inner peripheral surface of the nut portion 52. A screw of a member connected to the slider 2 can be threaded into the nut portion 52. Note that the inner peripheral surface of the nut portion 52 does not necessarily have to have a female thread formed thereon.

[0054] The fixing holes 53 are formed on both sides of the base plate 51 in the longitudinal direction Y, and further inward in the longitudinal direction Y than the nut portions 52. The fixing holes 53 are through-holes that penetrate the base plate 51 in the up-down direction Z. As shown in Figure 7, fitting protrusions 242 that protrude downward from the upper surface 241a of the base 20 are fitted into the fixing holes 53 and fixed.

[0055] Next, the position of the slider 2 relative to the guide rail 1 will be described.

[0056] 3, due to the weight of the slider 2, the lower rollers 411 of the lower rolling members 40 on both sides are in contact with the upper surface 11u of the bottom wall portion 11, but are not in contact with the lower surface 13d of the edge wall portion 13. The upper rollers 31 of the upper rolling members 30 on both sides are not in contact with the upper surface 11u of the bottom wall portion 11 or the lower surface 13d of the edge wall portion 13 of the guide rail 1. The normal state refers to a state in which no unbalanced force is acting on the slider 2.

[0057] In a normal state, the lower rollers 411 on both sides of the slider 2 rotate along the upper surface 11u of the bottom wall portion 11 of the guide rail 1, and are movable in the longitudinal direction Y.

[0058] (First Form) As shown in Figure 9, when a rotational force acts on the slider 2 in one axial direction (direction A1) around the width direction X, the slider 2 tilts in direction A1. Of the upper rollers 31 of the upper rolling members 30 on both sides, the upper roller 31 (referred to as 31A) on one side Y1 in the longitudinal direction Y strongly abuts against the lower surface 13d of the edge wall portion 13. Of the upper rollers 31 of the upper rolling members 30 on both sides, the upper roller 31 (referred to as 31B) on the other side Y2 in the longitudinal direction Y is separated from the lower surface 13d of the edge wall portion 13 or slightly contacts the lower surface 13d of the edge wall portion 13. Of the lower rollers 411 of the lower rolling members 40 on both sides, the lower roller 411 (referred to as 411B) on the other side Y2 in the longitudinal direction Y strongly abuts against the upper surface 11u of the bottom wall portion 11. Of the lower rollers 411 on both sides, the lower roller 411 (referred to as 411A) on one side Y1 in the longitudinal direction Y is spaced apart from or slightly in contact with the upper surface 11u of the bottom wall portion 11. The upper surface 11u of the bottom wall portion 11 corresponds to the second installation surface in the claims. The lower surface 13d of the edge wall portion 13 corresponds to the first installation surface in the claims. The one side Y1 in the longitudinal direction Y corresponds to one side in the first direction in the claims. The other side Y2 in the longitudinal direction Y corresponds to the other side in the first direction in the claims.

[0059] In the first mode, the lower roller 411B of the slider 2 rotates along the upper surface 11u of the bottom wall portion 11 of the guide rail 1, and the upper roller 31A rotates along the lower surface 13d of the edge wall portion 13, allowing movement in the longitudinal direction Y. The slider 2 rotates in contact with the guide rail 1 on both sides in the longitudinal direction Y, thereby suppressing rattling of the slider 2 against the guide rail 1.

[0060] (Second Form) As shown in Figure 10, when a rotational force acts on the slider 2 in the other axial direction (direction A2) around the width direction X, the slider 2 tilts in direction A2. Of the upper rollers 31 of the upper rolling members 30 on both sides, the upper roller 31B strongly abuts against the lower surface 13d of the edge wall portion 13. Of the upper rollers 31 of the upper rolling members 30 on both sides, the upper roller 31A is separated from the lower surface 13d of the edge wall portion 13 or slightly contacts the lower surface 13d of the edge wall portion 13. Of the lower rollers 411 of the lower rolling members 40 on both sides, the lower roller 411A is strongly abutting against the upper surface 11u of the bottom wall portion 11. Of the lower rollers 411 on both sides, the lower roller 411B is separated from the upper surface 11u of the bottom wall portion 11 or slightly contacts the upper surface 11u of the bottom wall portion 11.

[0061] In the second configuration, the lower roller 411A of the slider 2 rotates along the upper surface 11u of the bottom wall portion 11 of the guide rail 1, and the upper roller 31B rotates along the lower surface 13d of the edge wall portion 13, allowing movement in the longitudinal direction Y. The slider 2 rotates in contact with the guide rail 1 on both sides in the longitudinal direction Y, thereby suppressing rattling of the slider 2 against the guide rail 1.

[0062] In the slider device 100 configured in this manner, when the upper roller 31A of the slider 2 is inclined so as to approach the lower surface 13d of the edge wall portion 13 of the guide rail 1 (first configuration), the upper roller 31A abuts against the lower surface 13d of the edge wall portion 13, and the lower roller 411B abuts against the upper surface 11u of the bottom wall portion 11. When the lower roller 411A of the slider 2 is inclined so as to approach the upper surface 11u of the bottom wall portion 11 (second configuration), the lower roller 411A abuts against the upper surface 11u of the bottom wall portion 11, and the upper roller 31B abuts against the lower surface 13d of the edge wall portion 13 of the guide rail 1. Therefore, both sides of the slider 2 in the longitudinal direction Y abut against the lower surface 13d of the edge wall portion 13 of the guide rail 1 and the upper surface 11u of the bottom wall portion 11, thereby suppressing rattling of the slider 2 relative to the guide rail 1.

[0063] Furthermore, the outer sides of the upper roller 31 and the lower roller 411 in the width direction X are covered by the outer wall portions 23. This prevents the outer sides of the upper roller 31 and the lower roller 411 in the width direction X from coming into contact with the guide rail 1.

[0064] Furthermore, the upper roller 31 is disposed in the roller disposition hole 202 so as to penetrate the base 20 in the up-down direction Z. This prevents the upper roller 31 from protruding significantly from the base 20, allowing the slider 2 to be designed compactly.

[0065] While preferred embodiments of the present disclosure have been described above with reference to the accompanying drawings, it goes without saying that the present disclosure is not limited to these examples. It is clear that a person skilled in the art can conceive of various modifications or alterations within the scope of the technical ideas described in the claims, and it is understood that these modifications also fall within the technical scope of the present disclosure.

[0066] In the embodiment described above, the upper roller 31 of the upper rolling member 30 is disposed in the roller disposition hole 202 that penetrates the base 20 in the up-down direction Z, but this is not limited to this. The lower roller 411 of the lower rolling member 40 may be disposed in a through-hole that penetrates the base 20 in the up-down direction Z, or both the upper roller 31 and the lower roller 411 may be disposed in the through-hole.

[0067] The arrangement direction of the guide rail 1 can be set as appropriate, and the guide rail 1 may be arranged so that the longitudinal direction Y is along the vertical direction, or so that the opening S2 of the guide rail 1 faces downward.

[0068] REFERENCE SIGNS LIST 1 guide rail 2 slider 12, 12 side wall portion 12 side wall portion 20 base portion 23 outer wall portion 31 upper roller (first roller) 100 slider device 411 lower roller (second roller) A1 direction X width direction (second direction) Y length direction (first direction) Z up-down direction (third direction)

Claims

1. A slider for a guide rail comprising: a base; and a first roller and a second roller provided on either side of the base in a first direction, wherein the first roller is rotatable around a second direction perpendicular to the first direction, with the second direction being its axial direction, and protrudes from the base to one side in a third direction perpendicular to the first and second directions; and the second roller is rotatable around the second direction, with the second direction being its axial direction, and protrudes to the other side in the third direction.

2. A guide rail slider as described in claim 1, wherein the base has outer wall portions that cover the sides of the first roller and the second roller in the second direction.

3. A guide rail slider as described in claim 1 or 2, wherein a through hole penetrating in the third direction is formed in the base, and at least one of the first roller and the second roller is disposed in the through hole.

4. A slider device comprising: a guide rail slider according to claim 1 or 2; and a guide rail for guiding the guide rail slider.

5. A slider device as described in claim 4, wherein the guide rail has a first installation surface against which the first roller can abut and a second installation surface against which the second roller can abut, and in a first configuration, the first roller on one side in the first direction abuts against the first installation surface, and the second roller on the other side in the first direction abuts against the second installation surface, and in a second configuration, the first roller on the other side in the first direction abuts against the first installation surface, and the second roller on one side in the first direction abuts against the second installation surface.

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