JP2005282677A - Linear guide device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a means for locking the movement of a rail cover relative to a rail without damaging the rail track surfaces of the rail of a linear guide device. <P>SOLUTION: The linear guide device comprises the rail having the pair of rail track surfaces on the side faces, the rail cover covering the upper face of the rail, a saddle-shaped slider for linearly moving the rail, cover presses arranged at both ends of the rail in the moving direction of the slider for locking the movement of the rail cover relative to the rail in the moving direction of the slider, and rolling bodies for rolling on the rail track surfaces. The rail cover is bent at both ends in the moving direction of the slider to form end bent portions, and each of the cover presses consists of a body and a pair of leg portions elongating from the body in the moving direction of the slider to form an approximately U-shaped member. To lock portions for the cover press leg portions provided between the pair of rail track surfaces, the cover press leg portions arranged at both ends of the rail are locked with the belly sides of the bodies of the cover presses abutting on the end bent portions of the rail cover. <P>COPYRIGHT: (C)2006,JPO&NCIPI

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 injection molding machine and linearly moves a moving table such as a table.

The conventional linear guide device has a rail cover that covers the upper surface of the rail by rolling the rolling element to a pair of rail rolling element guide surfaces provided on the side surface of the rail so that the rod-shaped slider moves linearly on the rail. Is engaged or screwed to the rail rolling element guide surface with cover pressers provided at both ends of the rail slider moving direction (slider moving direction) to fix the relative movement between the rail cover and the rail ( For example, see Patent Document 1.)
Japanese Unexamined Patent Publication No. 2002-161917 (mainly, page 7 paragraph 0034 to page 8 paragraph 0042, FIGS. 1 and 14)

  However, in the conventional technology described above, the rail presser is engaged with or screwed to the rail rolling element guide surface of the rail to fix the rail cover that covers the upper surface of the rail, so the pressing force is applied to the rail rolling element guide surface. Indentation and scratches due to the screw tightening force occur, and the rolling element is easily damaged when the slider is moved or reassembled after disassembly, generating abnormal noise when the slider slides and increasing sliding resistance. There is a problem that there is a risk of such factors.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide means for fixing the relative movement between the rail cover and the rail without damaging the rail rolling element guide surface of the rail.

  In order to solve the above problems, the present invention provides a rail having a pair of rail rolling element guide surfaces on a side surface, a rail cover that covers the upper surface of the rail, a hook-shaped slider that linearly moves the rail, Cover pressers that are disposed at both ends of the rail in the slider movement direction and fix the relative movement of the rail cover and the rail in the slider movement direction, and rolling elements that roll on the rail rolling element guide surface. In the linear guide device, the rail cover is bent at both ends in the slider moving direction of the rail cover to form an end bent portion, and the cover presser includes a main body portion of the cover presser and the main body portion. And a pair of legs extending in the slider moving direction to form a substantially U-shaped member, and a cover presser leg locking portion is provided between the pair of rail rolling element guide surfaces. , The abdomen side of the main body of the cover presser is brought into contact with the bent portion of the cover and arranged at both ends of the rail, and the leg of the cover presser is locked to the cover presser leg locking part. It is characterized by doing.

  Thereby, the present invention can lock the leg portion of the car presser in a region other than the rail rolling element guide surface on which the rolling element rolls, and the cover presser without leaving any indentation or scratch on the rail rolling element guide surface. Can be arranged at both ends of the rail.

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

1 is a perspective view showing a linear guide device according to a first embodiment, FIG. 2 is a perspective view showing a cover presser according to the first embodiment, FIG. 3 is a top view showing an end portion of the rail cover according to the first embodiment, and FIG. FIG. 5 is a side view showing the mounting state of the cover presser according to the first embodiment, and FIG. 6 is a front view showing the mounting state of the cover presser according to the first embodiment.
In FIG. 1, 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 having a substantially I-shaped cross-section made of a steel material such as an alloy steel. A plurality of stepped bolt holes 3 for fixing the rail 2 are provided at a predetermined pitch.
Reference numeral 4 denotes a track recess, which is a substantially V-shaped groove formed of a pair of rail track surfaces 4a and 4b as a rail rolling element guide surface formed along the longitudinal direction of both side surfaces of the rail 2.

The rail track surfaces 4a and 4b are planes on which rollers (not shown) as rolling elements roll.
Reference numeral 5 denotes a slider, which is a bowl-shaped member made of a steel material such as alloy steel and having a substantially U-shaped cross-sectional shape.
Further, both sleeve walls 5a of the slider 5 are provided with return paths (not shown) for circulating the rollers, and both inner side surfaces thereof are opposed to the rail track surfaces 4a and 4b of the rail 2 through the rollers, respectively. A slider raceway surface (not shown) is formed.

Between the slider raceway surface and the rail raceway surfaces 4a and 4b, which are arranged to face each other, a load path for supporting the load of the slider 5 moving on the rail 2 by rolling the roller is formed.
Reference numeral 6 denotes an end cap, which is made of a metal material, a resin material, or the like, disposed at the front and rear ends of the slider 5 in the slider moving direction, and fastened to the slider 5 with bolts or the like.
The load path and the return path of the slider 5 are connected to each other by a direction change path (not shown) provided in the end cap 6 to form a circulation path through which the rollers circulate as the slider 5 moves.

This circulation path is similarly formed on the sleeve wall 5a on the opposite side of the slider 5, and the rollers that roll on the respective load paths support the load of the slider 5 and support the slider 5 on the rail 2 so as to be capable of linear reciprocating motion. To do.
3 and 4, reference numeral 7 denotes a rail cover, which is manufactured to a length substantially equal to the length in the longitudinal direction of the rail 2 by roll forming or the like using a thin plate of alloy steel or the like, and along both longitudinal directions thereof. Between the edges 8 is formed as a flat surface along the upper surface 2a of the rail 2, and a polyethylene tape material is attached to the upper surface 2a to prevent scratches during production or handling.

Further, both edge portions 8 of the rail cover 7 are bent at an angle smaller than 90 degrees, and engage with the upper portion of the side surface of the rail 2 to move the rail 2 and the rail cover 7 in the direction perpendicular to the slider moving direction. The rail cover 11 covers the entire upper surface 2a of the rail 2 and prevents accumulation of dust or the like in the stepped bolt hole 3.
Further, both ends of the rail cover 7 in the slider moving direction are substantially the same as the angle (90 degrees in this embodiment) formed by the rail upper surface 2a and the end surface 2b with the corners of the upper surface 2a and the end surface 2b of the rail as base points. It is bent at the same angle, and its end bent portion 9 engages with the end surface 2b of the rail 2 to prevent relative movement of the rail 2 and the rail cover 7 in the slider moving direction.

  Reference numeral 10 denotes a side seal, which is a core formed of a plate material such as alloy steel, and a seal formed on the core with an elastic material such as natural rubber or synthetic rubber along the outer diameter shape of the rail 2 and the rail cover 7. And a contact-type seal that is slidably contacted with the outer peripheral surface formed by the rail 2 and the rail cover 7 to adhere dust from the outside. And prevent leakage of lubricant from inside.

  In FIG. 2, 11 is a cover presser, which is formed by press molding a relatively thick plate material of a metal material such as alloy steel or by injection molding of a resin material such as nylon or polyacetal, and screwing a helisert to the screw portion. A substantially U-shaped member comprising a main body 12 and a pair of legs 13 extending from both side end portions in the slider moving direction, and the rail cover 7 of the main body 12. The side is formed so as to be substantially the same position as the upper surface 7a of the rail cover 7.

  Further, the cover presser 11 is disposed at both ends of the rail 2 with the abdomen of the main body 12 abutting on the outer side of the end bent portion 9 of the rail cover 7 engaged with both end surfaces 2 b of the rail 2. 5 and FIG. 6, a cover that is a plane between a pair of rail track surfaces 4 a and 4 b on the side surface of the rail 2 by bolts 15 screwed into screw holes 14 provided in the leg portion 13. Fastened to the presser leg locking portion 16 to be locked, and prevents excessive movement of the rail cover 7 in the slider moving direction when an excessive force is applied to the rail cover 7, and at the end bent portion 9 of the rail cover 7. The rail cover 7 is prevented from being lifted from the upper surface 2a of the rail 2 by the frictional force generated by the contact between the main body 12 and the main body 12.

As a result, the leg 13 of the cover presser 11 is locked to a region other than the rail raceway surfaces 4a and 4b where the rollers roll, and the cover presser 11 can be moved to the rail 2 without leaving any indentation or scratch on the rail raceway surfaces 4a and 4b. It can be fixed and arranged at both ends.
As described above, in the present embodiment, the abdomen side of the body part of the cover presser is brought into contact with the end bent part of the rail cover and disposed at both ends of the rail, and between the pair of rail track surfaces. By locking the cover presser foot part to the cover presser foot part locking part, the leg part can be locked to an area other than the rail raceway surface on which the roller rolls, and the rail track surface is indented. The cover presser can be disposed at both ends of the rail without leaving any scratches.

This is particularly effective when reassembling after disassembling and inspecting the rail and the slider, and it is possible to repeat the disassembly and assembling as many times without impairing the function of the linear guide device.
In addition, the cover presser leg locking part is pressed by the bolt screwed into the screw hole provided in the leg part to fix the cover presser, so that the friction between the bolt and the cover presser leg locking part is fixed. Fixing by force is possible, so that the cover presser can be easily fixed without additional processing such as threading on the rail, and the processing of the rail can be simplified.

7 is a perspective view showing the cover presser of the second embodiment, FIG. 8 is a top view showing the end portion of the rail cover of the second embodiment, FIG. 9 is a side view showing the end portion of the rail cover of the second embodiment, and FIG. FIG. 11 is a side view showing a cover presser mounted state of the second embodiment, and FIG. 11 is a front view showing a cover presser mounted state of the second embodiment.
In addition, the same code | symbol is attached | subjected to the part similar to the said Example 1, and the description is abbreviate | omitted.

The rail cover 7 of the present embodiment shown in FIGS. 8 and 9 is manufactured in the same manner as in the first embodiment, and both end bent portions 9 in the slider moving direction are formed at the corners of the upper surface 2a and end surface 2b of the rail. As a base point, it is bent at an angle larger by an end bending angle α shown in FIG. 9 than an angle (90 degrees in this embodiment) formed by the upper surface 2a and the end surface 2b of the rail.
In FIG. 7, reference numeral 21 denotes a contact inclined portion of the cover presser 11, which is provided on the ventral side of the main body 12 of the substantially U-shaped cover presser 11 manufactured in the same manner as in the first embodiment, and is bent at the end. It is a recessed part which has the slope which inclined the surface which the part 9 contact | abuts at an angle smaller than the edge part bending angle (alpha).

  The cover presser 11 according to the present embodiment applies the inclined surface of the contact inclined portion 21 on the ventral side of the main body portion 12 to the outside of the end bent portion 9 of the rail cover 7 engaged with the rail 2 by the edge portion 8. As shown in FIGS. 10 and 11, the cover presser leg portion locking portion 16 is arranged at both ends of the rail 2 by a bolt 15 screwed into the screw hole 14 of the leg portion 13 as in the first embodiment. The rail cover 7 is prevented from relative movement in the slider moving direction, and the end bent portion 9 of the rail cover 7 is formed at an angle smaller than the end bent angle α. The rail cover 7 is pressed against the upper surface 2 a of the rail 2 by the elasticity of the rail cover 7 and is prevented from being lifted by contacting the slope of the inclined portion 21.

As a result, the leg portion 13 of the cover presser 11 is locked to a region other than the rail raceway surfaces 4a and 4b where the rollers roll, and the rail cover 7 can be lifted without leaving any indentations or scratches on the rail raceway surfaces 4a and 4b. The cover presser 11 can be securely fixed and arranged at both ends of the rail 2 while being surely prevented.
As described above, in this embodiment, in addition to the same effects as those of the first embodiment, an angle that is larger by the end bending angle α than the angle formed by the end surface of the rail cover and the end surface of the rail cover. The end bent portion is brought into contact with a slope having an angle smaller than the end bent angle α formed in the contact inclined portion provided on the abdomen side of the main body portion of the cover presser. It is possible to reliably prevent the rail cover from being lifted from the upper surface.

12 is a perspective view showing the cover presser of the third embodiment, FIG. 13 is a top view showing the end portion of the rail cover of the third embodiment, FIG. 14 is a side view showing the end portion of the rail cover of the third embodiment, and FIG. FIG. 16 is a side view showing the cover presser mounted state of the third embodiment, and FIG. 16 is a front view showing the cover presser mounted state of the third embodiment.
In addition, the same code | symbol is attached | subjected to the part similar to the said Example 1, and the description is abbreviate | omitted.

The rail cover 7 of the present embodiment shown in FIGS. 13 and 14 is manufactured in the same manner as in the first embodiment, and the ends of both end bent portions 9 that are bent in the same manner as in the first embodiment are provided on the rail 2. A tip tongue piece 25 is formed which is parallel to the upper surface 2a and bent in the opposite direction to the end surface 2b.
In FIG. 12, reference numeral 26 denotes a tongue engaging portion of the cover presser 11, which is provided on the main body 12 of the substantially U-shaped cover presser 11 manufactured in the same manner as in the first embodiment, and is the end of the rail cover 7. It is a slit-like hole that engages the tip tongue piece 25 provided in the bent portion 9.

  The cover presser 11 of the present embodiment abuts the abdomen side of the main body 12 on the outer side of the end bent portion 9 of the rail cover 7 engaged with both end surfaces 2b of the rail 2 as in the first embodiment. At the same time, the tip tongue 25 of the end bent portion 9 is inserted into the tongue engaging portion 26 and disposed at both ends of the rail 2, and as shown in FIGS. The bolt 15 screwed into the screw hole 14 of the 13 is fastened and locked to the cover presser leg locking portion 16 to prevent relative movement of the rail cover 7 in the slider moving direction, and at the end of the rail cover 7 The tip tongue piece 25 of the bent portion 9 is engaged with the tongue piece engaging portion 26 to prevent the rail cover 7 from being lifted from the upper surface 2 a of the rail 2.

As a result, the leg portion 13 of the cover presser 11 is locked to a region other than the rail raceway surfaces 4a and 4b where the rollers roll, and the rail cover 7 can be lifted without leaving any indentations or scratches on the rail raceway surfaces 4a and 4b. Further, the cover presser 11 can be fixedly disposed at both end portions of the rail 2 while being surely prevented.
As described above, in this embodiment, in addition to the same effects as those of the first embodiment, the tip tongue piece formed by bending the tip end portion of the end bent portion of the rail cover in the direction opposite to the end surface of the rail is provided. By engaging with the tongue piece engaging portion of the cover presser, it is possible to more reliably prevent the rail cover from being lifted from the upper surface of the rail.

FIG. 17 is a perspective view illustrating the cover presser according to the fourth embodiment.
The rail cover 7 of this embodiment is the same as that of the first embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
In FIG. 17, reference numeral 31 denotes a rib of the cover retainer 11. The outer angle between the main body portion 12 and both leg portions 13 of the substantially U-shaped cover retainer 11 manufactured in the same manner as in the first embodiment is formed by press molding or the like. It is formed by pushing the belly side inside angle into a triangular shape and functions to increase the rigidity of the leg 13.

Reference numeral 32 denotes a boss, which is a convex portion formed around the screw hole 14 of the leg portion 13 of the cover presser 11 and is squeezed from a small hole by a burring process or the like before threading to form the periphery thickly. The screw hole 14 that is manufactured and formed therein functions to increase the screw strength.
Thus, in this embodiment, in addition to the same effects as in the first embodiment, the rigidity of the leg portion of the cover presser is increased by the rib, and the screw strength of the screw hole is increased by the boss. The fastening strength to the presser leg locking portion can be increased.

FIG. 18 is a perspective view illustrating the cover presser according to the fifth embodiment.
The rail cover 7 of this embodiment is the same as that of the first embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
In FIG. 18, reference numeral 35 denotes a cover protection portion of the cover retainer 11, and the upper surface 7 a side of the rail cover 7 of the main body portion 12 of the substantially U-shaped cover retainer 11 manufactured in the same manner as in the embodiment 1 moves in the slider moving direction. It is a saddle-like part formed by bending the rail cover 7 so as to cover the cut surface of the end portion of the rail cover 7 to protect the part from scratches and the like, and to prevent injury of the assembly worker due to the cut surface.

  Thus, in this embodiment, in addition to the same effects as in the first embodiment, the cut surface of the end portion of the rail cover is covered by the cover protection portion of the cover presser so as to cover the cut surface of the end portion of the rail cover. It is possible to prevent damage to the head and injury of the assembly worker.

FIG. 19 is a perspective view illustrating the cover presser according to the sixth embodiment, and FIG. 20 is a front view illustrating a mounting state of the cover presser according to the sixth embodiment.
The rail cover 7 of this embodiment is the same as that of the first embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
In FIG. 19, reference numeral 37 denotes a cover protection portion of the cover presser 11, which is a bowl-shaped portion manufactured in the same manner as in the fifth embodiment, and the end portion of the upper surface 7 a of the rail cover 7 has a substantially entire length in the width direction. It is formed so as to cover over, and functions to protect the cut surface of the end portion of the rail cover 7 from scratches and prevent injury of the assembly worker due to the cut surface.

  Thereby, in a present Example, the effect similar to Example 5 can further be heightened.

21 is a perspective view showing the linear guide device of the seventh embodiment, FIG. 22 is a perspective view showing the cover presser of the seventh embodiment, FIG. 23 is a side view showing the mounting state of the cover presser of the seventh embodiment, and FIG. It is a front view which shows the mounting state of the cover presser of Example 7.
The rail cover 7 of this embodiment is the same as that of the first embodiment. The same parts as those in the first embodiment and the fifth embodiment are denoted by the same reference numerals, and the description thereof is omitted.

In FIG. 22, reference numeral 41 denotes a bolt hole of the cover presser 11, which is a through-hole in the plate thickness direction provided in the main body portion 12 of the cover presser 11 manufactured in the same manner as in the fifth embodiment.
In FIG. 23, 42 is a screw hole provided in the end surface 2b of the rail 2, and the bolt 43 inserted in the bolt hole 41 of the cover presser 11 is screwed and fastened.
As shown in FIG. 21, the cover presser 11 of this embodiment abuts the abdomen side of the main body 12 on the outer side of the end bent portion 9 of the rail cover 7 engaged with both end surfaces 2 b of the rail 2. 23 and 24, the end bent portion 9 is clamped between the main body portion 12 of the cover presser 11 and the end surface 2b of the rail 2 with a bolt 43 as shown in FIGS. Then, the bolts 15 screwed into the screw holes 14 of the leg portions 13 are fastened and locked to the cover presser leg locking portions 16 of the rail 2.

  As a result, the leg 13 of the cover presser 11 is locked to a region other than the rail raceway surfaces 4a and 4b where the rollers roll, and the cover presser 11 can be moved to the rail 2 without leaving any indentation or scratch on the rail raceway surfaces 4a and 4b. When the slider 5 moves to the end of the rail 2 and the side seal 10 contacts the end surface of the cover protection portion 35 in the slider moving direction, the bolt 15 and the bolt The cover presser 11 fixed by 43 can prevent the slider 5 from falling off the rail 2.

  Also, the end bent portion 9 of the rail cover 7 is sandwiched between the main body portion 12 of the cover retainer 11 and the end surface 2b of the rail 2 so that the cover retainer 11 is disposed at both ends of the rail. The bolt 15 and the bolt 43 can jointly and firmly prevent relative movement of the rail cover 7 in the slider moving direction when an excessive force is applied to the cover 7, and at the same time from the upper surface 2 a of the rail 2 of the rail cover 7. Lifting can be surely prevented.

  As described above, in this embodiment, in addition to the same effects as in the fifth embodiment, the body portion is fastened to the end surface of the rail by the bolt hole provided in the body portion of the cover presser. The rail cover can be prevented from falling off, and the end bent portion of the rail cover can be sandwiched between the main body and the end surface of the rail, and the relative movement of the rail cover in the slider moving direction and the rail cover rail It is possible to reliably prevent lifting from the upper surface of the plate.

FIG. 25 is a side view showing a cover presser mounted state of the eighth embodiment, and FIG. 26 is a front view showing a cover presser mounted state of the eighth embodiment.
The rail cover 7 and the cover retainer 11 of this embodiment are the same as those of the first embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
In FIG. 25 and FIG. 26, 51a and 51b are rail track grooves as a pair of rail rolling element guide surfaces, and are substantially arc-shaped grooves in which a ball (not shown) as a rolling element rolls. It is formed along the longitudinal direction on the slope of the orbital recess 4 on the side surface.

In addition, slider track grooves (not shown) are formed on the inner side surfaces of both sleeve walls 5a of the slider 5 so as to face the rail track grooves 51a and 51b of the rail 2 via balls.
A load path is formed between the slider raceway groove and the rail raceway grooves 51a and 51b arranged to face each other to support the load of the slider 5 moving on the rail 2 by rolling the ball.
The cover presser 11 of the present embodiment is disposed at both ends of the rail 2 similarly to the first embodiment, and functions in the same manner as the cover presser 11 of the first embodiment.

As described above, in this embodiment, the same effect as that of the first embodiment can be obtained even in a linear guide device using a ball as a rolling element.
In each of the above embodiments, the description has been given on the assumption that the rail of the cover presser foot to the cover presser leg lock portion is screwed. The stop portion may be pressed and locked. Thereby, simplification of the cover presser can be achieved.

Further, the technologies of the protective covers described in the above embodiments can be used in appropriate combinations, and the effects can be combined and exhibited by combining the technologies.
Furthermore, although the case where the upper surface of the rail is installed in the horizontal direction has been described as an example, the same applies to the case where the upper surface is installed vertically or upside down or inclined.

The perspective view which shows the linear guide apparatus of Example 1. FIG. The perspective view which shows the cover presser of Example 1. The top view which shows the edge part of the rail cover of Example 1. The side view which shows the edge part of the rail cover of Example 1. The side view which shows the mounting state of the cover presser of Example 1 The front view which shows the mounting state of the cover presser of Example 1 The perspective view which shows the cover presser of Example 2. The top view which shows the edge part of the rail cover of Example 2. The side view which shows the edge part of the rail cover of Example 2. The side view which shows the mounting state of the cover presser of Example 2 The front view which shows the mounting state of the cover presser of Example 2 The perspective view which shows the cover presser of Example 3. The top view which shows the edge part of the rail cover of Example 3. The side view which shows the edge part of the rail cover of Example 3. The side view which shows the mounting state of the cover presser of Example 3 The front view which shows the mounting state of the cover presser of Example 3 The perspective view which shows the cover presser of Example 4. The perspective view which shows the cover presser of Example 5. The perspective view which shows the cover presser of Example 6. The front view which shows the mounting state of the cover presser of Example 6 The perspective view which shows the linear guide apparatus of Example 7. FIG. The perspective view which shows the cover presser of Example 7. The side view which shows the mounting state of the cover presser of Example 7 The front view which shows the mounting state of the cover presser of Example 7 The side view which shows the mounting state of the cover presser of Example 8 The front view which shows the mounting state of the cover presser of Example 8.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Linear guide apparatus 2 Rail 2a Upper surface 2b End surface 3 Stepped bolt hole 4 Track recessed part 4a, 4b Rail track surface 5 Slider 5a Sleeve wall 6 End cap 7 Rail cover 8 Edge 9 End bent part 10 Side seal 11 Cover presser 12 Body part 13 Leg part 14 Screw hole 15, 43 Bolt 16 Cover presser leg part locking part 21 Abutting inclined part 25 Tip tongue part 26 Tongue piece engaging part 31 Rib 32 Boss 35, 37 Cover protection part 41 Bolt hole 42 Screw hole 51a, 52b Rail track groove

Claims (7)

A rail having a pair of rail rolling element guide surfaces on the side surface, a rail cover that covers the top surface of the rail, a hook-shaped slider that linearly moves the rail, and both ends of the rail in the slider moving direction. A linear guide device comprising: a cover presser that fixes relative movement of the rail cover and the rail in the slider moving direction; and a rolling element that rolls on the rail rolling element guide surface.
The rail cover is bent at both ends in the slider moving direction of the rail cover to form end bent portions,
The cover presser is composed of a main body portion of the cover presser and a pair of legs extending from the main body portion in the slider moving direction to form a substantially U-shaped member,
A cover presser leg locking portion is provided between the pair of rail rolling element guide surfaces, and the abdomen side of the main body of the cover presser is brought into contact with the bent portion of the cover and arranged at both ends of the rail. In addition, the linear guide device is characterized in that the leg portion of the cover presser is locked to the cover presser foot portion locking portion. In claim 1,
Bending the end bent portion of the rail cover at an angle larger than the angle formed by the upper surface and the end surface of the rail by an end bending angle;
Provided on the ventral side of the body part of the cover presser is an abutting inclined portion having an inclined surface having an angle smaller than the end bending angle, and is bent at the end bending angle on the inclined surface of the corresponding inclined portion. A linear guide device, wherein a curved portion is brought into contact with each other and arranged at both ends of the rail. In claim 1 or claim 2,
The tip end of the end bent portion of the rail cover is bent in a direction opposite to the end face of the rail in parallel with the top surface of the rail to form a tip tongue piece,
A tongue piece engaging portion for engaging the tip tongue piece is provided on the main body portion of the cover presser, and the tip tongue piece is engaged with the tongue piece engaging portion and arranged at both ends of the rail. A characteristic linear guide device. In claim 1, claim 2 or claim 3,
A linear guide device, wherein a main body of the cover presser is provided with a bowl-shaped cover protection portion that covers an end portion of the upper surface of the rail cover. In claim 4,
Bolt holes that penetrate the main body portion in the plate thickness direction are provided in the main body portion of the cover presser, and the main body portion is fastened to screw holes provided in the end surface of the rail, and is arranged at both end portions of the rail. A characteristic linear guide device. In claim 1 to claim 4 or claim 5,
A linear guide device in which the cover presser is formed of a metal material. In claim 1 to claim 4 or claim 5,
A linear guide device in which the cover presser is formed of a resin material.