JP2008133939A - Linear guide apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a means which can easily attach a dustproofing cover without removing mounting screws fixing a side seal or end cap to a slider, and improve space utility controlling the dustproofing cover. <P>SOLUTION: The dustproofing cover arranged in a linear guide apparatus 1 comprises: a slider side attachment 20 fixed in a slider 7 which is formed in a different portion; a sliding panel 50 which has an inner side profile 54 along a crosssectional shape of rail 2, and is arranged in an axial direction of the rail 2; a slider side mounting panel 30 which is fitted in the slider side attachment 20, and mounted to the slider side attachment 20 with a first engaging portion consisting of engaging piece 27 and engaging hole 37; and a bellows 60 which is fitted in the sliding panel 50, and joined with a sliding panel attachment 40 attached to the sliding panel 50 with a second engaging portion consisting of an engaging piece 47 and engaging hole 57. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a linear guide device that is provided in a guide portion of a machine device such as a machine tool or an industrial machine and guides a linear movement of a moving table such as a table.

In general, a linear guide device used in a machine device such as a machine tool or an industrial machine operates in an environment where a large amount of foreign matter such as chips or welding spatter is generated.
For this reason, if foreign matter enters the slider of the linear guide device, the rolling element may be prevented from rolling and the linear guide device may be damaged, so side seals are provided at both ends of the end cap rail in the axial direction. However, in the linear guide device used in an environment where a large amount of foreign matter is generated as described above, the rail is covered with a bellows-shaped dust-proof cover to prevent the foreign matter from adhering to the upper surface of the rail. Has been done.

Such a conventional linear guide device having a bellows-shaped dustproof cover is provided with a return path provided in the slider, a direction changing path provided in the end cap, a rail track groove provided in the rail, and a slider provided in the slider. A plurality of balls are loaded into a circulation path that communicates with a load path formed so as to face the raceway groove, and a slider that linearly reciprocates the rail is supported by a ball that rolls along the load path. The side seals are arranged at both ends of the cap in the axial direction, the mounting plates fixed to the side seals and the end faces of the rails, respectively, and the inner shape along the cross-sectional shape of the rails arranged between them. A dustproof cover consisting of bellows joined with a letter-shaped sliding plate is provided, and the mounting plate at one end is screwed to the end surface of the rail, and the mounting plate at the other end is side-sealed, end The screw holes on the slider are screwed with mounting screws across the cap, and a dust cover is attached between the side seal and the end surface of the rail to prevent foreign matter from adhering to the top surface of the rail. (For example, refer to Patent Document 1).
JP 2003-83328 A (mainly, page 3, paragraphs 0012-0015, FIG. 1)

  However, in the above-described conventional technology, one of the side plate and the mounting plate fixed to the end surface of the rail is screwed to the end surface of the rail, and the other is provided on the slider with the side seal and the end cap interposed therebetween. Since the dust-proof cover is attached between the side seal and the end face of the rail by fixing with a mounting screw in the screw hole, if the linear guide device is delivered with the dust-proof cover attached, the dust-proof cover will be Since it is difficult for the customer to install the rail because the top surface is covered, the side seal and end cap can be installed to install the dust cover after the rail is installed at the customer if the dust cover is removed. When the mounting screw that secures the slider to the slider is removed, the end cap will come off and the ball will fall off. There is a problem that there is a possibility would.

Moreover, since the insertion hole of the attachment screw of the attachment plate on the side seal side is formed inside the bellows, there is a problem that it is difficult to fasten with the attachment screw because the valley portion of the bellows becomes an obstacle.
This is particularly noticeable when moving parts such as sliders are downsized.
Furthermore, since the sliding plate joined to the bellows is formed so as to have an inner shape along the cross-sectional shape of the rail, in order to attach a dustproof cover to a rail having a different cross-sectional shape, the cross-sectional shape is changed. It is necessary to prepare a dustproof cover to which a suitable sliding plate is joined, and it is necessary to secure a space for managing various types of dustproof covers, resulting in a problem that the space utility is lowered.

  The present invention has been made to solve the above-described problems, and the dust cover can be easily attached without removing the mounting screw that fixes the side seal and the end cap to the slider. It aims at providing the means to improve the space utility to manage.

  In order to solve the above-described problems, the present invention includes a rail having a rail rolling element guide surface, a slider rolling element guide surface facing the rail rolling element guide surface, and a return path. A slider that reciprocates, an end cap that is disposed at both ends of the slider in the axial direction of the rail, and has a direction changing path; a load path formed by the rail rolling element guide surface and the slider rolling element guide surface; A rolling element that circulates the load path through a circulation path that communicates with the direction change path and the return path, a side seal that is disposed on an end surface of the end cap opposite to the slider, the side seal, and the rail In the linear guide device having a dust-proof cover attached to the end surface of the slider, the dust-proof cover includes a slider-side fixture fixed to the slider, and the label A sliding plate arranged in the axial direction of the rail and the slider-side fixture, and is fitted to the slider-side fixture by a first engaging portion. A slider-side mounting plate to be mounted, and a bellows that is fitted to the sliding plate and is joined to the sliding plate mounting tool that is mounted to the sliding plate by a second engagement portion.

  Accordingly, the present invention provides a slider-side mounting plate and a sliding plate mounting tool that are joined to the bellows without removing the mounting screw that fixes the side seal or the end cap to the slider while the slider is assembled to the rail. Can be attached to the slider side fixture fixed to the slider and the sliding plate inserted into the rail, and the dustproof cover can be easily attached by the engaging part, and it is suitable for rails with different cross-sectional shapes If only the sliding plate is prepared, the dustproof cover can be easily attached to the linear guide device using rails with different cross-sectional shapes using the same slider side fixture and bellows, and the types of parts that form the dustproof cover can be selected. The effect that the space utility which reduces and manages a dust-proof cover can be improved is acquired.

  Embodiments of a linear guide device according to the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a linear guide device according to an embodiment, FIG. 2 is an explanatory view showing an attached state of the dust cover of the embodiment, and FIG. 3 is an explanatory view showing the dust cover of the embodiment.
1 and 2, reference numeral 1 denotes a linear guide device.
Reference numeral 2 denotes a rail of the linear guide device 1, which is a long rod-shaped member made of a steel material such as alloy steel, and has end surfaces (rail end surface 2 a) on both sides in the axial direction (referred to as the longitudinal direction of the rail 2). Is formed with a mounting screw hole 3 for screwing a rail-side fixture 70, which will be described later, and an upper surface thereof (referred to as a rail upper surface 2b) on the base of the machine device along the axial direction. A plurality of rail mounting holes 4 which are stepped bolt holes for mounting the rails 2 are provided at a predetermined pitch.

Reference numeral 6 denotes a rail track groove as a rail rolling element guide surface, which is a groove having an arcuate cross section formed along the axial direction of the rail 2 (simply referred to as the axial direction) on both side surfaces of the rail 2.
Reference numeral 7 denotes a slider, which is a bowl-shaped member having a U-shaped cross-sectional shape made of a steel material such as alloy steel. A screw hole 8 is provided on the upper surface thereof, and the screw hole 8 is used. A moving table or the like of a mechanical device (not shown) is attached with a bolt or the like.

Reference numeral 9 denotes a slider raceway groove as a slider rolling element guide surface, which is a groove having an arcuate cross section provided on the inner side of both sleeve walls 7 a of the slider 7 so as to face the rail raceway groove 6.
Reference numeral 10 denotes a ball as a rolling element, which is a sphere made of a steel material such as alloy steel.
A return path 11 has a diameter larger than the diameter of the ball 10 for circulating the ball 10 formed in the thick part of the sleeve wall 7a of the slider 7, and is a through-hole penetrating the sleeve wall 7a in the axial direction. Thus, it is provided corresponding to each slider raceway groove 9.

Reference numeral 12 denotes an end cap, which is made of a metal material, a resin material, or the like, and is arranged at both ends of the slider 7 in the axial direction. The slider 7 has a slider raceway groove 9 and a rail raceway groove 6 arranged opposite to each other. Direction change paths 13, which are U-shaped curved paths connecting the formed load path and the return path 11 of the slider 7, are provided corresponding to the respective load paths.
14 is a side seal, a cored bar made of a plate material such as alloy steel, and a seal rubber made of a rubber material such as natural rubber or synthetic rubber joined to the cored bar by a joining means such as baking or bonding; A lip portion slidably contacting the rail 2 is provided on the rail 2 side of the seal rubber, and an end is attached by a mounting screw 16 that is screwed into a screw hole 15 provided in an end surface 7b of the slider 7 in the axial direction. Attached to the slider 7 together with the cap 12.

Further, the side seal 14 is provided with an insertion hole 22 through which a mounting screw 21 for fixing the slider-side fixture 20 shown in FIG. 2 is inserted, and the side seal 14 is attached at a position corresponding to the insertion hole 22 of the end surface 7b of the slider 7. A mounting screw hole 23 (see FIG. 1) for screwing the screw 21 is formed.
As shown in FIG. 3, the slider-side fixture 20 has a length greater than the width in the direction perpendicular to the axial direction of the rail 2 at the center of a rectangular thin plate formed of metal or the like by press molding or the like. 2 is a portal-shaped member formed with a rectangular cut-out portion 24 having a length greater than the height of 2, and sleeves of the slider-side mounting plate 30 are provided at both ends in a direction perpendicular to the axial direction. A fitting groove 25 that is bent in a U shape is formed to fit the outer edge of the part, and the end of the fitting groove 25 on the open side of the gate is bent in a direction to close the fitting groove 25. A locking portion 26 is formed.

Further, between the fitting groove 25 and the cutout portion 24 of the slider-side fixture 20, a section obtained by separating two rectangular long sides and one short side is bent into a dogleg shape and fitted. An engaging piece 27 having a spring property with a peak protruding to the middle of the groove width of the groove 25 is formed, and an attachment hole 28 through which the attachment screw 21 is inserted at a position corresponding to the insertion hole 22 of the side seal 14. Is formed.
The slider-side mounting plate 30 has a thickness that fits into the fitting groove 25 of the slider-side fitting 20 and is a plate formed of a metal or resin material having a rectangular shape that can be inserted into the fitting grooves 25 on both sides. A gate-shaped member in which a cutout portion 34 having the same shape as the cutout portion 24 of the slider-side fixture 20 is formed at the center of the member, and a position corresponding to the engagement piece 27 of the slider-side fixture 20 An engagement hole 37 that is a rectangular hole penetrating in the plate thickness direction with which the engagement piece 27 is engaged is formed.

  Reference numeral 40 denotes a sliding plate fixture, which has the same shape as the cutout portion 24 of the slider-side fixture 20 at the center of a rectangular thin plate similar to the slider-side fixture plate 30 formed of metal or the like by press molding or the like. And a fitting groove 45 bent in a U-shape for fitting the sliding plate 50 at both ends in a direction orthogonal to the axial direction. At the end of the fitting groove 45 on the closed side of the portal shape, a flange 46 is formed that connects both the fitting grooves 45 and is bent in a direction to close them.

In addition, an engagement piece 47 similar to the locking piece 27 of the slider-side attachment 20 is formed between the fitting groove 45 of the sliding plate attachment 40 and the cutout portion 44.
The sliding plate 50 has a thickness that fits into the fitting groove 45 of the sliding plate fitting 40 and is a plate formed of a metal or resin material having a rectangular shape that can be inserted into the fitting grooves 45 on both sides. A gate-shaped member in which an inner shape 54 having a shape along a cross-sectional shape perpendicular to the axial direction of the rail 2 is formed at the center of the member, and the engaging piece 47 of the sliding plate mounting tool 40 An engagement hole 57 that is a rectangular hole penetrating in the plate thickness direction with which the engagement piece 47 is engaged is formed at a position corresponding to.

  Reference numeral 60 denotes a bellows, which is a rectangular duct-shaped member that is formed by a plurality of crests 61 and troughs 62 so as to be expandable and contractable in the axial direction, and whose one surface is open, and as shown in FIGS. The slider-side mounting plate 30 is joined to the trough 62 forming one end in the direction by sewing or bonding, and the rail-side mounting plate 70 is joined to the peak 61 forming the other end (see FIG. 2 are hatched portions).

Further, a predetermined interval is provided at the peak portion 61 between the slider-side mounting plate 30 and the rail-side mounting plate 70 of the bellows 60, that is, an interval at which the bellows 60 does not bend and disengage from the rail 2 when the bellows 60 expands and contracts. The sliding plate fixture 40 is joined (hatched portion shown in FIG. 2).
The rail-side mounting plate 70 is a plate member formed of a metal or resin material having the same rectangular shape as the slider-side mounting plate 30 and is provided with a mounting screw at a position corresponding to the mounting screw hole 3 on the rail end surface 2a. A mounting hole 72 through which 71 is inserted is formed.

The dust-proof cover of the present embodiment is composed of the slider-side mounting tool 20, the sliding plate 50, the slider-side mounting plate 30, the sliding plate mounting tool 40, and the bellows 60 joined to the rail-side mounting plate 70. Is configured.
Further, the engaging piece 27 of the slider-side mounting tool 20 and the engaging hole 37 of the slider-side mounting plate 30 are configured such that the slider-side mounting tool 20 and the slider-side mounting plate 30 of this embodiment can be inserted and removed. The engaging piece 47 of the sliding plate mounting tool 40 and the engaging hole 57 of the sliding plate 50 function as the engaging portion (first engaging portion). And the sliding plate 50 function as an engaging portion (second engaging portion) configured to be insertable / removable.

  Both ends of the load path are connected to each other by a direction change path 13 of the end cap 12 and a return path 11 of the slider 7 to form a circulation path. The circulation path has a plurality of balls 10 and a predetermined amount of grease. The rail raceway groove 6 and the slider raceway groove 9 are fitted via the ball 10, and the ball 10 circulates in the circulation path as the slider 7 moves, and the ball 10 rolling on the load path becomes the slider. 7, the slider 7 is supported so as to be able to reciprocate linearly along the axial direction of the rail 2, and the side seals 14 on both sides in the axial direction of the slider 7 and the respective sides are supported. A dust-proof cover attached between the rail end surface 2a and the rail end surface 2a expands and contracts with the movement of the slider to prevent foreign matter from adhering to the rail upper surface 2b.

The dust cover of this embodiment is attached to the linear guide device 1 as follows.
That is, the rail 2 is fastened to a base of a mechanical device (not shown) with a bolt inserted through the rail mounting hole 4, and the slider 7 is fitted to the rail 2 via the ball 10 to install the linear guide device 1 on the base. As shown in FIG. 2, the slider-side fixture 20 is overlapped on both side seals 14 of the installed linear guide device 1, and the mounting screw 21 is inserted into the mounting hole 28 and the insertion hole 22 of the side seal 14. Is fastened to the mounting screw hole 23 of the end surface 7 b of the slider 7 to fix the slider-side fixture 20 to the slider 7.

  After the slider side fixture 20 is fixed, the slider 54 joined to the bellows 60 by inserting the inner shape 54 of the sliding plate 40 into the rail raceway groove 6 of the rail 2 and inserting a predetermined number of the sliding plates 40 into the rail 2. The side mounting plate 30 is pushed into the fitting groove 25 of the slider side mounting tool 20 and the fitting groove 45 of the sliding plate mounting tool 40 is pushed into the sliding plate 50 while being fitted, so that the slider side mounting plate 30 is pushed into the slider side. The flange portion 46 of the sliding plate mounting tool 40 is brought into contact with the sliding plate 50 at the locking portion 26 of the mounting tool 20.

At this time, the engagement piece 27 of the slider-side attachment 20 constituting the engagement portion is engaged with the engagement hole 37 of the slider-side attachment plate 30, and the engagement piece 47 of the sliding plate attachment 40 is engaged with the sliding plate 50. The bellows 60 are attached to the slider-side fixture 20 and the sliding plate 50 by engaging with the mating holes 57 by their spring properties.
After the bellows 60 is mounted, the rail-side mounting plate 70 is fastened and fixed to the rail end surface 2a by the mounting screws 71 inserted through the mounting holes 72 of the rail-side mounting plate 70.

Further, when removing the attached bellows 60 from the linear guide device 1, the mounting screw 71 fixed to the rail side mounting plate 70 is removed, and the bellows 60 is pulled in the height direction of the rail 2 using a jig or a hand. Then, using the spring properties of the engagement pieces 27 and 47 constituting the engagement portion, the engagement to the engagement holes 37 and 57 is released, and the bellows 60 is removed from the linear guide device 1.
As described above, the dustproof cover of this embodiment is obtained by joining the slider-side mounting tool 20, the sliding plate 50, the slider-side mounting plate 30, the sliding plate mounting tool 40, and the rail-side mounting plate 70. The slider side fixture 20 is fixed to the slider 7 while the slider 7 is assembled to the rail 2, and after the sliding plate 40 is inserted into the rail 2, it is joined to the bellows 60. The slider-side mounting plate 30 and the sliding plate mounting tool 40 are fitted to the slider-side mounting tool 20 and the sliding plate 50, respectively, and can be easily mounted by the engaging portion, with the dustproof cover removed. Even if it is delivered separately, the dustproof cover can be easily attached after installation of the rail 2 at the delivery destination, and the side seal 12 and the mounting screw 16 of the end cap 12 are not removed. It is possible to prevent the ball 10 from falling off by command cap 12 is disengaged.

Further, since the slider-side mounting tool 20 is formed separately, there is nothing that obstructs the insertion of mounting screws such as the bellows 60 during mounting work, and the slider-side mounting tool 20 can be easily fixed to the slider 7. In addition, the moving parts such as the slider 7 can be downsized.
Furthermore, since the slider-side mounting plate 30 is joined to the valley portion 62 of the bellows 60, the slider-side mounting plate 30 is fitted into the fitting portion 25 of the slider-side mounting tool 20 without being obstructed by the bellows 60. Can be pushed in easily.

Furthermore, since the sliding plate 50 is formed separately, the dustproof cover can be easily applied to the rail 2 having a different cross-sectional shape.
For example, when the dust-proof cover of this embodiment is applied to the linear guide device 1 using the rolling elements shown in FIG. 4 as rollers, the cross-sectional shape of the rail 2 in which the rail raceway surface 81 on which the rollers roll is formed on the side surface. If the sliding plate 50 having the inner shape 84 formed along the line is prepared, the slider-side fixing tool 20, the slider-side mounting plate 30, the sliding plate mounting tool 40, and the rail-side mounting plate 70 similar to the above are prepared. The dustproof cover can be easily attached to the linear guide device 1 using the rolling elements as rollers using the joined bellows 60.

In this case, the rail rolling element guide surface and the slider rolling element guide surface forming the load path are formed by a rail raceway surface 81 on which the roller rolls, and a slider raceway surface (not shown) formed on the slider 7 so as to face the rail raceway surface 81. Composed.
Thus, if only the sliding plate 50 adapted to the rail 2 having a different cross-sectional shape is prepared, the linear slider using different rolling elements of the same class, for example, using the same slider-side fixture 20 and the bellows 60. A dust-proof cover can be easily attached to the guide device 1, and the type of parts forming the dust-proof cover can be reduced to improve the space utility for managing the parts.

Furthermore, since the bellows 60 of this embodiment can be easily removed by releasing the engagement by the engaging portion, the bellows 60 can be easily replaced in the case of repair or the like, and the rail 2 is installed vertically. In addition, the number of sliding plates 50 can be changed in order to prevent the bellows 60 from being subjected to gravity in the axial direction of the rails 2 and being easily bent.
That is, when the bellows 60 expands and contracts when the axial interval of the rail 2 is set vertically as shown in FIG. When the interval between the sliding plate attachments 40 is narrowed by setting the interval so as not to be bent and disengaged from the rail 2, and when the rail 2 is installed horizontally, the sliding plate 50 is moved as shown by a solid line in FIG. In the case where they are arranged by being thinned out and installed vertically, it is preferable to add the sliding plate 50 indicated by a two-dot chain line in FIG. 5 so that the sliding plates 50 are engaged with all the sliding plate attachments 40.

  As described above, in this embodiment, the dustproof cover includes a slider-side fixture fixed to the slider, a sliding plate having an inner shape along the cross-sectional shape of the rail, and arranged in the axial direction. A slider-side mounting plate that is fitted to the slider-side mounting tool and is attached to the slider-side mounting tool by an engaging portion including an engaging piece and an engaging hole, and the sliding plate is fitted to the sliding plate. And the bellows joined to the sliding plate fixture attached by the engaging part consisting of the engaging hole, the side seal and end cap are fixed to the slider while the slider is attached to the rail. The slider side fixture can be easily fixed to the slider without removing the mounting screws, and the slider side mounting plate and sliding plate fixture joined to the bellows can be It is possible to easily attach the dustproof cover by the engaging part by fitting it to the sliding plate inserted into the tool and the rail, and the same if you prepare only the sliding plate suitable for the rail with different cross-sectional shape A space utility that can easily attach a dustproof cover to a linear guide device using rails with different cross-sectional shapes using a slider-side fixture and bellows, and manages the dustproof cover by reducing the number of parts that form the dustproof cover Can be improved.

In the above embodiment, the slider-side fixture and the sliding plate fixture are described as being formed of a thin metal plate, but may be formed of a resin material.
Moreover, in the said Example, although the slider side fixture was demonstrated as fixing to a slider after installation of a linear guide apparatus, you may make it fix to a slider previously.
Furthermore, in the said Example, the 1st engaging part is comprised with the engaging piece provided in the slider side fixture, and the engaging hole provided in the slider side attaching plate, and the 2nd engaging part is Although it has been described that the engagement piece is provided on the slider plate and the engagement hole provided on the slide plate, the engagement piece is provided on the slider side attachment plate and the slide plate, and the engagement hole is provided on the slider. You may make it provide in a side fixture and a sliding plate fixture.

In this case, the engagement pieces provided on the slider-side mounting plate and the sliding plate may be joined by joining means such as welding or brazing.
Furthermore, in the said Example, although the sliding plate fixture was demonstrated as joining to the peak part of a bellows, you may make it join to a trough part.
Furthermore, in the said Example, although the slider side attachment board 30 demonstrated as joining to the trough part 62 of the bellows 60, you may make it join to the peak part 61. FIG. In this case, as shown in FIG. 6, for example, the slider-side mounting plate 30 is joined by the ridges 61 with the outer dimensions being the dimensions of the ridges 61 of the bellows 60, and the fitting grooves 95 of the slider-side fixture 90. May be formed so as to fit the inner edge of the sleeve portion of the slider-side mounting plate 30. Even in this case, the slider-side mounting plate 30 can be easily pushed in without being obstructed by the bellows 60 while being fitted to the fitting portion 95 of the slider-side mounting tool 90, and the same effect as described above can be obtained. be able to.

The perspective view which shows the linear guide apparatus of an Example. Explanatory drawing which shows the attachment state of the dustproof cover of an Example Explanatory drawing which shows the dustproof cover of an Example Explanatory drawing which shows the attachment to the rail of the other form of the dustproof cover of an Example Explanatory drawing which shows the other attachment form of the sliding plate of an Example Explanatory drawing which shows the principal part of the other form of the dust-proof cover of an Example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Linear guide apparatus 2 Rail 2b Rail end surface 2b Rail upper surface 3, 23 Mounting screw hole 4 Rail mounting hole 6 Plug 6 Rail track groove 7 Slider 7a Sleeve wall 7b End surface 8, 15 Screw hole 9 Slider track groove 10 Ball 11 Return path 12 End cap 13 Direction change path 14 Side seal 16, 21, 71 Mounting screw 20, 90 Slider side mounting tool 22 Insertion hole 24, 34, 44 Cutting part 25, 45, 95 Fitting groove 26 Locking part 27, 47 Engagement Joint pieces 28, 72 Mounting hole 30 Slider side mounting plate 37, 57 Engagement hole 40 Sliding plate mounting tool 46 Flange portion 50 Sliding plate 54, 84 Inner shape 60 Bellows 61 Mountain portion 62 Valley portion 70 Rail side mounting plate 81 Rail track surface

Claims (2)

A rail having a rail rolling element guide surface; a slider rolling element guide surface facing the rail rolling element guide surface; and a return path; a slider that linearly reciprocates the rail; and the rail of the slider. End caps disposed at both ends in the axial direction and having a direction changing path, a load path formed by the rail rolling element guide surface and the slider rolling element guide surface, and the load path as the direction changing path and the return path Rolling elements that circulate through a circulation path that communicates with each other, a side seal disposed on an end surface of the end cap opposite to the slider, and a dust-proof cover attached between the side seal and the end surface of the rail; In a linear guide device comprising:
The dust cover is
A slider side fixture fixed to the slider;
A sliding plate having an inner shape along the cross-sectional shape of the rail, and arranged in the axial direction of the rail;
A slider-side mounting plate that is fitted to the slider-side mounting tool and is attached to the slider-side mounting tool by a first engaging portion, and is fitted to the sliding plate, and is second-engaged to the sliding plate. A linear guide device comprising: a bellows joined to a sliding plate attachment attached by a portion. In claim 1,
The first engagement portion includes an engagement piece provided in the slider-side attachment tool and an engagement hole provided in the slider-side attachment plate, and the second engagement portion is formed by sliding the slide. A linear guide device comprising an engagement piece provided in a plate fixture and an engagement hole provided in the sliding plate.