TW201908614A - Rail cover mounting jig - Google Patents

Abstract

Provided is a rail cover mounting jig for firmly mounting a rail cover (4) to the track rail (2) of a motion guide device (1). The rail cover mounting jig is provided with: a body (50, 60) corresponding to the upper surface of the track rail and provided with an operating handle (52, 62); and a pair of skirts (51, 61) hanging downward from the body and corresponding to both side surfaces of the track rail. The inner side surfaces of the skirts are provided with supports (54, 66) loosely fitted in grooves longitudinally provided in both side surfaces of the track rail. The lower surface of the body is provided with a sliding contact section (53, 64) located at a distance from the supports in the longitudinal direction of the track rail. The jig is slid in the longitudinal direction of the track rail, and the principle of leverage is used such that the operating handle acts as the effort point and the supports act as the fulcrum, with the sliding contact section acting as the load point to sequentially press the rail cover in the longitudinal direction of the track rail.

Description

Track fixture mounting fixture

The present invention relates to a mounting jig used when the track cover is attached to a track rail of a motion guiding device.

Motion guides are widely used in linear guides or curved guides of various work machines and transport devices. The motion guiding device includes a rail rail that forms a "rolling contact surface of the ball" along the longitudinal direction, and a moving block that is assembled to the rail rail via a ball that rolls on the rolling contact surface. Further, the moving block has an infinite loop passage of the aforementioned balls, and the balls are continuously circulated in the infinite loop passage, and the moving block can continuously move along the longitudinal direction of the rail rail.

When such a motion guiding device is in use, a pair of sealing members are usually mounted at both ends in the moving direction with respect to the aforementioned moving block. The sealing member is closely attached to the rail rail, and seals a gap between the moving block and the rail rail to prevent foreign matter such as chips and dust adhering to the workpiece of the rail rail from entering the inside of the moving block.

Further, the rail rail is provided with a bolt mounting hole that is used when the rail rail is laid on a mechanical device or the like. Therefore, even when the sealing member is attached to the moving block, the foreign matter may enter the inside of the moving block via the rail mounting hole, and the sealing member may rub against the opening edge of the bolt mounting hole, which may cause the sealing member to be caused. Accelerate wear and tear and doubts.

For the above reasons, as disclosed in Patent Document 1, in the conventional motion guiding device, a rail cover for mounting to the aforementioned rail rail is prepared. The track cover is formed of a long metal plate and is attached to one side of the track rail along the longitudinal direction of the track rail to cover the bolt mounting hole. Further, at both ends in the width direction of the track cover, a locking portion that is bent downward is provided, and the track rail is gripped from both sides by a pair of locking portions, thereby forming the track cover fixed to the track Rails. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2008-57688

[The problem that the invention wants to solve]

In order to be easily attached to the rail rail, the conventional rail cover sets the gripping force of the pair of locking portions to be weak. However, if the sealing member has a high adhesion to the track cover, when the moving block moves along the track rail, there is a fear that the track cover accidentally moves in the longitudinal direction of the track rail.

Further, if the gripping force of the pair of locking portions on the rail rail is increased, the operation of attaching the rail cover to the rail rail becomes complicated, especially in the case where the rail rail is long, the mounting work becomes It is very troublesome. [Means for solving problems]

The present invention has been made in view of such a problem, and an object of the present invention is to provide a rail that can be easily and surely executed when a rail cover is firmly attached to a rail rail of a motion guiding device. The mounting fixture of the cover.

That is, the present invention is a jig used when the "track cover covering the upper surface of the rail rail" is fitted to the rail rail of the motion guiding device, and is provided to correspond to the upper surface of the rail rail. And a main body portion for operating the grip; and a pair of skirt portions which are suspended from the main body portion and correspond to both side surfaces of the rail rail. Further, on the inner side surface of the skirt portion, a support portion that is fitted in a "groove portion provided on both side surfaces of the rail rail along the longitudinal direction" is provided, and the rail is formed on the lower surface side of the main body portion. A sliding portion is provided at a position separated from the support portion in the longitudinal direction of the rail. Once the jig is slid toward the length of the track rail, the operation grip will become a force point, and the support portion becomes a fulcrum. By the principle of the lever, the sliding portion becomes a point of action along the track rail. The track cover is sequentially pressed in the longitudinal direction of the strip, and the rail cover is mounted on the track rail. [Effects of the Invention]

According to the mounting jig of the rail cover of the present invention, by sliding the jig along the longitudinal direction of the rail rail, even when the rail cover is firmly attached to the rail rail, the fixture can be easily and surely Perform its installation work.

Hereinafter, an embodiment of the mounting jig of the rail cover of the present invention will be described in detail with reference to the drawings.

Fig. 1 is a view showing an example of a motion guiding device that has attached a rail cover to a rail rail. The motion guiding device 1 includes a linear rail strip 2, a moving block 3 attached to the rail rail 2 via a large number of rolling elements, and a rail cover 4 covering the upper surface of the rail rail 2. . The moving block 3 has an infinite circulation path of the plurality of rolling elements, and the moving block 3 can be along the track rail 2 by rolling the rolling element to "the rolling contact surface 20 formed on the track rail 2" Reciprocatingly reciprocating.

Fig. 2 is a cross-sectional view showing the rail rail 2 and the rail cover 4 cut in a direction orthogonal to the longitudinal direction. The track rails 2 are formed in a slightly rectangular cross section, and groove portions 21 are formed along the longitudinal direction on both side faces of the rail rails 2. A rolling contact surface 20 as a roller of the rolling element is formed above and below each groove portion. Further, in the track rail 2, a plurality of bolt mounting holes 22 are provided at predetermined intervals in the longitudinal direction. These bolt mounting holes 22 are used when the rail rails 2 are laid by a fixing bolt to a fixing portion such as a mechanical device. The plurality of bolt mounting holes are covered by the rail cover 4 in Fig. 1, and foreign matter such as chips and dust of the workpiece can be prevented from entering the bolt mounting hole 22.

The rail cover 4 is a plate-shaped member made of stainless steel, and a pair of locking portions 40 that are bent downward are provided at both ends in the width direction. The pair of locking portions 40 are slightly bent toward the inside as compared with the vertical lower portion. Therefore, when the rail cover 4 is attached to the rail rail 2, the pair of locking portions 40 must be pushed outward, and the rail rail 2 is pressed between the locking portions. Further, a pair of cover fixing grooves 23 corresponding to the pair of locking portions 40 are provided on both side faces in the vicinity of the corner portion of the track rail 2 described above. In this way, once the track cover 4 is completely attached to the rail rail 2, the front ends of the pair of locking portions 40 will enter the pair of cover fixing grooves 23, and the pair of locking portions 40 are elastically formed. The aforementioned track rail 2 is clamped. Therefore, the aforementioned track cover 4 is firmly fixed to the aforementioned rail rail 2.

Fig. 3 is a view showing a first embodiment of a dedicated mounting jig 5 for fixing the above-described rail cover 4 to the rail rail 2. By using the mounting jig 5, the pair of locking portions 40 of the track cover 4 can be easily pressed into the cover fixing groove 23 of the track rail 2, and the track cover 4 can be easily executed on the track rails. 2 installation work.

The mounting jig 5 has a main body portion 50 which is superposed on the upper surface of the rail rail 2, and a pair of skirt portions 51 which are suspended from the main body portion 50 and correspond to both side faces of the rail rail 2. The mounting jig 5 has a recessed portion surrounded by the main body portion 50 and the pair of skirt portions 51, and the upper half of the rail rail 2 can be accommodated in the recessed portion.

In the body portion 50, an operation grip 52 is provided on the opposite side of the recessed portion, and the aforementioned operation grip 52 is biased and the aforementioned mounting jig 5 is along the track rail 2 as will be described later. Moving, the aforementioned track cover 4 can be attached to the aforementioned rail rail 2. Further, a pair of sliding portions 53 for pressing the track cover 4 are provided in front and rear of the lower surface side of the main body portion 50 facing the track rail 2 described above. In the embodiment of the attachment jig 5 shown in Fig. 3, each of the sliding portions 53 is provided with a convex curved surface. When the rail cover 4 is attached to the rail rail 2, the sliding portion 53 slides on the rail. Cover 4 on.

A support portion 54 is protruded on the inner side surface of each of the skirt portions 51 facing the track rails 2. When the mounting jig 5 is applied to the rail rail 2, the support portion 54 is fitted to the "groove portion 21 formed on the side surface of the rail rail 2". Further, the support portion 54 is provided at a position separated from the sliding portion 53 in the longitudinal direction of the rail rail 2, and in the embodiment of the attachment jig 5 shown in Fig. 3, the support portion 54 is provided. Located at a position in the middle of the pair of sliding portions 53.

Fig. 4 is a view showing a state in which the mounting jig 5 is assembled to the rail rail 2 from the longitudinal direction of the rail rail 2. The mounting jig 5 inserts the pair of support portions 54 along the groove portions 21 on both side faces of the rail rail 2 with respect to the end portion of the rail rail 2 from the longitudinal direction thereof. In a state where the operation grip 52 is vertically raised, there is a gap between the lower surface of the main body portion 50 of the mounting jig 5 and the upper surface of the rail rail 2, in the track rail 2, The installed track cover 4 is located in the gap.

In this way, after the mounting jig 5 is assembled to the track rail 2 in a state where the operation grip 52 is vertically raised, as shown in FIG. 5, once the operation grip 52 is directed to the track The rail 2 is overwhelmed in the longitudinal direction (arrow A in FIG. 5), and one of the sliding portions 53 provided on the lower surface side of the main body portion 50 will contact the rail cover 4 to form the rail cover 4 Pressing toward the track rail 2 is performed. Further, the operation of pressing the operation grip 52 described above is caused by the rotational movement of the sliding portion 53 as the center of the attachment jig 5, and therefore the support portion 54 of the skirt portion 51 is provided on the aforementioned rail. The inside of the groove portion 21 of the rail 2 moves upward, and the support portion 54 comes into contact with the rolling contact surface 20 located on the upper side of the groove portion 21. In the fifth drawing, the state in which the mounting jig 5 is cut in half by the main body portion 50 is displayed.

Therefore, if the aforementioned operating grip 52 is pushed down toward the longitudinal direction of the track rail 2, and a moment of force is applied to the operating grip 52, the aforementioned sliding can be achieved by the lever principle using the supporting portion 54 as a fulcrum. The joint portion 53 serves as a point of action to press the rail cover 4 toward the rail rail 2 with a strong force. Since the rail cover portion 53 presses the rail cover 4 toward the rail rail 2 over the entire width direction, the pair of latching portions 40 of the rail cover 4 are offset from the corner portions of the rail rail 2 Then, it is forcibly pressed and attached to the rail rail 2, and the front end of each of the locking portions 40 enters the lid fixing groove 23 provided in the rail rail 2, and the rail rail 2 is gripped. In this way, the track cover 4 is firmly fixed to the track rail 2 described above.

Then, the moment of the force is continuously applied to the state of the operation grip 52, and if the operation grip 52 is pressed toward the longitudinal direction of the track rail 2, the mounting jig 5 is directed toward the arrow on the track rail 2 Moving in the B direction, the track cover 4 is sequentially fixed to the track rail 2 in the longitudinal direction. Therefore, the track cover 4 can be easily attached to the track rail 2 by moving from one end of the track rail 2 to the other end by using the above-described mounting jig 5.

Further, the mounting jig 5 shown in FIG. 3 is provided in the middle of the pair of sliding portions 53 formed in the main body portion 50, and is provided in the support portion 54 of the skirt portion 51. After the mounting jig 5 is assembled to the rail rail 2, even when the operation grip 52 is reversed from the standing position in either direction, the rail cover 4 can be pressed by the sliding portion 53 in either direction. That is, the above-described mounting jig 5 has no directivity to the assembly of the above-described rail rail 2, and its operation is simplified.

Fig. 6 is a view showing a second embodiment of a dedicated mounting jig for fixing the rail cover 4 to the rail rail 2. In the mounting jig 5 according to the first embodiment, the rail cover 4 can be assembled to the rail rail 2 even when the rail rail 2 is advanced in either direction in the longitudinal direction, and the second embodiment is The mounting jig 6 is configured to press the rail cover 4 against the rail rail 2 only when the rail rail 2 is advanced in a single direction (arrow C direction).

The mounting jig 6 has a main body portion 60 that is superposed on the upper surface of the rail rail 2, and a pair of skirt portions 61 that are suspended from the main body portion 60 and correspond to both side faces of the rail rail 2. The mounting jig 6 has a recessed portion surrounded by the main body portion 60 and the pair of skirt portions 61, and the upper half of the rail rail 2 can be accommodated in the recessed portion.

In the body portion 60, an operation grip 62 is provided on the opposite side of the recessed portion. Further, although not clearly disclosed in Fig. 6, a sliding portion for pressing the above-described rail cover 4 is provided on the lower surface side of the main body portion 60 facing the track rail 2 described above. A restraining portion 63 that overlaps the upper surface of the rail rail 2 is protruded from the center of the main body portion 60. On the lower surface side of the restraining portion 63, a restriction is attached to the upper surface of the rail rail 2 Face 64.

Further, an extension portion 65 that faces the restraining portion 63 in the same direction is protruded from each of the skirt portions 61. A support portion 66 is provided on the inner surface side of each of the extension portions 65, that is, a portion facing the side surface of the rail rail 2. Similarly to the support portion 54 provided in the attachment jig 5 of the first embodiment, the support portion 66 is fitted to the "guide rail" 2 of the second embodiment when it is applied to the rail rail 2 The groove portion 21" on the side surface of the track rail 2 is.

Fig. 7 is a cross-sectional view showing the mounting jig 6 cut along the longitudinal direction of the rail rail 2 in the main body portion 60. A sliding portion 67 for pressing the rail cover 4 is provided on the lower surface side of the main body portion 60. The aforementioned sliding portion 67 forms a convex curved surface. Further, an introduction portion 68 connected to the sliding portion 67 is provided in front of the sliding portion 67, and the rail cover 4 that is superposed on the rail rail 2 is guided to the sliding portion 67 via the introduction portion 68. The sliding portion 67 is pressed toward the rail rail 2 .

As is clear from Fig. 7, the distance between the sliding portion 67 and the support portion 65 is set to be shorter than the distance between the sliding portion 67 and the regulating surface 64. Further, the sliding portion 67 and the restricting surface 64 are formed at the same height with respect to the main body portion 60 as indicated by a one-dot chain line in FIG.

Fig. 8 is a view showing a method of using the mounting jig 6, and shows an operation of the mounting rail 6 on the rail rail 2 in an exploded manner. The mounting jig 6 is used by being assembled from the end portion of the rail rail 2 to the rail rail 2. At the end of the rail rail 2, the main body portion 60 of the attachment jig 6 is slightly raised to tilt the attachment jig 6, and the support portion 66 is inserted into the groove portion 21 of the rail rail 2. If the operation grip 62 is pushed down from the longitudinal direction of the track rail 2 from this state, and the moment of the force of the arrow D direction is applied to the operation grip 62, the lever can be used as the fulcrum by the support portion 66. According to the principle, the aforementioned sliding contact portion 67 serves as a point of action to press the track cover 4 toward the track rail 2 with a strong force. As a result, the pair of locking portions 40 of the track cover 4 are forcibly pressed by the contact with the corner portions of the rail rails 2, and are further attached to the rail rails 2, and the locking portions 40 are respectively The front end enters the cover fixing groove 23 provided in the track rail 2 described above. As a result, the end portion of the track cover 4 in the longitudinal direction is firmly fixed to the track rail 2.

Then, when the operation grip 62 is pressed toward the longitudinal direction of the rail rail 2 (arrow E direction) to advance the attachment jig 6, the restriction surface 64 of the restraint portion 63 abuts on the rail rail fixed to the rail. The track cover of 2 is used to stably mount the posture of the jig 6 on the track rail 2 described above. In other words, the "sliding portion 67 is pressed against the rail rail 2", and the rail cover 4 is pushed in the direction of the arrow E in this state. It is fixed to the aforementioned rail rail 2 in the entire length direction.

Therefore, in the mounting jig 6 of the second embodiment, after the restricting surface 64 abuts against the rail cover 4, the user does not have to continuously apply a moment to apply the force to the operating grip 62, and only the mounting jig 6 is required. By pressing in the longitudinal direction of the rail rail 2, the rail cover 4 can be simply fixed to the rail rail 2.

Fig. 9 is a view showing a third embodiment of a dedicated mounting jig for fixing the rail cover 4 to the rail rail 2. The mounting jig 7 of the third embodiment has substantially the same structure as the mounting jig 5 of the first embodiment, and the method of use thereof is substantially the same as that of the mounting jig 5. Therefore, the same components as those of the mounting jig 5 of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and the detailed description of the portions will be omitted.

In the attachment jig 5 of the first embodiment, the operation grip 52 is fixedly provided to the main body portion 50. In contrast, in the attachment jig 7 of the third embodiment, the operation grip 70 is provided as follows: With respect to the main body portion 50, it is free to rotate in the direction of the arrow F. That is, in the state in which the aforementioned operation grip 70 is held, the main body portion 50 can freely rotate with the operation grip 70 as a center.

For example, as shown in FIG. 5, the mounting jig of the first embodiment is pushed down in the direction of the arrow A, and the mounting jig 5 is advanced in the direction of the arrow B, and the rail cover 4 is attached to the foregoing. In the case of the rail rail 2, if the aforementioned operating grip is held firmly, it is easy to apply the force to the operating grip 52 from the user's hand to twist it. It is assumed that once the force for twisting the operating grip 52 is generated, yawing occurs in the body portion 50, since the sliding portion 53 is not closely attached to the track cover 4 in the entire width direction of the track rail 2 There is a fear that assembly failure of the rail cover 4 may occur.

In the mounting jig 7 of the third embodiment, since the operation grip 70 is rotatably provided with respect to the main body portion 50, even if the force for twisting the handle 70 is reversed, The main body portion 50 is deflected to prevent a gap from being formed between the sliding portion 53 and the track cover 4. Therefore, according to the mounting jig 7 of the third embodiment, the rail cover 4 can be reliably pressed against the rail rail 2 in the entire width direction of the rail rail 2, and the rail cover 4 can be surely mounted. In the aforementioned track rail 2 .

Further, a projection stopper member 71 is provided on the lower surface of the main body portion 50 of the attachment jig 7, that is, at the center of the surface facing the rail rail 2. The stopper member 71 is in contact with the end of the track rail 2 when the mounting jig 7 reaches the end of the track rail 2, causing the sliding portion 53 to pass the end of the track rail 2 The surface prevents further movement of the aforementioned mounting jig 7. When the stopper member 71 is provided on the lower surface of the main body portion 50, the distance between the support portion 54 and the stopper member 71 is set to be larger than between the support portion 54 and the sliding portion 53. The distance is shorter.

Fig. 10 is a view showing a state in which the mounting jig 7 is advanced along the rail rail 2, and the rail cover 4 is attached to the rail rail 2. If the force X acting in the uppermost end of the operation grip 70 is applied to push the force X toward the front, as described above, the lever principle of the support portion 54 provided on the skirt portion 51 as a fulcrum is as described above. The sliding portion 53 serves as an action point, and acts as a force Y for pressing the rail cover 4 toward the rail rail 2. At this time, the distance of the sliding portion 53 which is the "support portion 54 as the fulcrum" as the action point is L.

In addition, the mounting jig 7 travels along the track rail 2, as shown in FIG. 11, when the mounting jig 7 reaches the end of the track rail 2, the sliding portion 53 may pass through the track rail. The end face 2a of the rail track of the strip is detached from the rail rail 2. As a result, the mounting jig 7 that presses the operation grip 70 by the force X is largely tilted, and the operation is in addition to the operator's hand hitting the periphery of the track rail 2 to cause injury. The grip 70 causes a concern that the machine around the track rail 2 is damaged.

However, in the mounting jig 7 of the third embodiment, when the sliding portion 53 is detached from the rail rail 2 (track cover 4), the stopper member 71 will contact the rail portion instead of the sliding portion 53. The upper surface of the cover 4 prevents the mounting jig 7 from being further tilted. Further, since the stopper member 71 is provided at the center of the main body portion 50, as shown in Fig. 11, the distance L1 of the sliding portion 53 having the "support portion 54 as a fulcrum" as an action point becomes The distance L shown in Fig. 10 is shorter. Therefore, the force Y1 at which the stopper member 71 as the action point presses the rail cover 4 downward is larger than the force Y (refer to FIG. 10) in which the sliding portion 53 presses the rail cover 4 (see FIG. 10). That is, when the stopper member 71 comes into contact with the track cover 4, the operator will feel a large amount of resistance such as "the aforementioned attachment jig 7 has been locked to the track rail 2", and the installation is treated. The tool 7 has reached the end of the aforementioned track rail 2.

The distance L1 shown in FIG. 11 is shorter than the distance L shown in FIG. 10, and the stopper member 71 presses the force Y1 of the rail cover 4, and the force Y of the rail cover 4 is pressed against the sliding portion 53. It is bigger. In addition, since the sliding portion 53 is slidably attached to the track cover 4 and the track cover 4 is pressed toward the track rail 2, the surface of the sliding portion 53 preferably has a low friction coefficient and is smooth, as long as the friction coefficient is used. The rubber or the like having the large sliding portion 53 is a material of the stopper member 71. When the stopper member 71 comes into contact with the rail cover 4, the mounting jig 7 can be locked to the rail with a greater force. Rails 2.

As described above, according to the mounting jig of the rail cover of the present invention, the above-mentioned operation grip is used as a force point, and the support portion is used as a fulcrum lever principle, and the sliding portion serves as a point of action to bias the rail cover Since the ground rail is pressed against the rail rails, the rail cover can be easily attached to the rail rails even when the pair of locking portions provided on the rail cover have a strong gripping force on the rail rails.

In the mounting jigs of the first to third embodiments, the roller is placed on the track rail even if the roller is provided in the "support portion that serves as a fulcrum" and the "sliding portion that serves as a point of action". Strips and track covers are also fine. By providing the roller at the fulcrum and the point of action of the lever principle, the mounting fixture can be more easily moved in the longitudinal direction of the track rail.

A‧‧‧ arrow direction

B‧‧‧Arrow direction

C‧‧‧Arrow direction

D‧‧‧ arrow direction

E‧‧‧ arrow direction

L‧‧‧ distance

L1‧‧‧ distance

X‧‧‧ force

Y‧‧‧ force

Y1‧‧‧ force

1‧‧‧Sports guide

2‧‧‧ Track rails

3‧‧‧moving block

4‧‧‧ Track cover

5‧‧‧Installation fixture

6‧‧‧Installation fixture

7‧‧‧Installation fixture

20‧‧‧ rolling contact surface

21‧‧‧Ditch

22‧‧‧Bolt mounting holes

23‧‧‧ Covering the ditch

40‧‧‧Cards

50‧‧‧ Body Department

51‧‧‧ skirt

52‧‧‧Operation grip

53‧‧‧Sliding

54‧‧‧Support

60‧‧‧ Body Department

61‧‧‧ skirt

62‧‧‧Operation grip

63‧‧‧ restraint department

64‧‧‧Restricted face

65‧‧‧Extension

66‧‧‧Support

67‧‧‧Sliding

68‧‧‧Importing Department

70‧‧‧Operation grip

71‧‧‧stop member

Fig. 1 is a perspective view showing an example of a motion guiding device to which a track cover has been attached. Figure 2: Front cross-sectional view showing the track rail and its installed track cover. Fig. 3 is a perspective view showing a first embodiment of the mounting jig according to the present invention. Fig. 4 is a front elevational view showing a state in which the mounting jig of the first embodiment of the present invention is applied to a rail rail. Fig. 5 is a partial notch (cut) perspective view showing a method of using the mounting jig of the first embodiment. Fig. 6 is a perspective view showing a second embodiment of the mounting jig according to the present invention. Fig. 7 is a cross-sectional view showing the cutting fixture of the second embodiment cut along the longitudinal direction of the rail rail. Fig. 8 is an explanatory view showing a method of using the mounting jig of the second embodiment. Fig. 9 is a perspective view showing a third embodiment of the mounting jig according to the present invention. Fig. 10 is an explanatory view showing a method of using the mounting jig of the third embodiment. Fig. 11 is an explanatory view showing a state in which the attachment jig of the third embodiment reaches the end of the rail rail.

Claims (5)

A mounting jig for a track cover is a jig used when the track cover (4) covering the upper surface of the track rail is fitted to the track rail (2) of the motion guiding device (1) (5, 6), comprising: a body portion (50, 60) corresponding to an upper surface of the track rail and having operation grips (52, 62); and hanging from the body portion corresponding to the track a pair of skirt portions (51, 61) on both sides of the rail, and a support portion (54, which is formed in a groove portion provided on both side surfaces of the rail rail along the longitudinal direction) is provided on the inner side surface of the skirt portion. 66) Further, on a lower surface side of the main body portion, a sliding portion (53, 64) is provided at a position separated from the support portion in a longitudinal direction of the rail rail, and the jig is oriented toward the rail track The slider slides in the longitudinal direction of the strip, and the sliding portion is used as a point of action by using the operation grip as a force point, and the sliding portion serves as a point of action, and sequentially presses the track cover along the longitudinal direction of the rail rail . The mounting jig of the rail cover according to claim 1, wherein the sliding portion (53) is provided in a pair in the longitudinal direction of the rail rail (2) via the support portion (54). The mounting jig of the rail cover according to claim 1, wherein the support portion (54, 66) and the sliding portion (53, 64) are provided to abut against the rail rail (2) and are freely Rotating roller. The mounting jig of the rail cover according to claim 1, wherein the operation grip (70) is configured to be freely rotatable relative to the main body portion (50). The mounting jig of the rail cover according to claim 1, wherein a lower surface of the main body portion (50) opposite to the rail rail (2) is provided when the sliding portion (53) is from the rail rail The strip contacts the stop member (71) of the track rail when it is disengaged.