End cap and liner motion guiding device using the same

Abstract

To properly supply a lubricant to an end cap irrespective of a posture of a linear motion guide device.SOLUTION: An end cap 30 for a linear motion guiding device 1 comprises: an end cap main body 37; a direction conversion path 26 formed at a back face 31a which abuts on an end face 21a of a slider main body 21 of the end cap main body 37; a front face oil supply hole 61 opened at a front face 31b at a side opposite to the back face 31a, and supplying a lubricant L from the outside; a first oil path 63 formed at the back face 31a; a second oil path 65; a first side face oil supply hole 71 and a second side face oil supply hole 73 which are opened at one side face of the end cap main body 37, and supply the lubricant L from the outside; and a third oil path 75 formed at the back face 31a. When supplying the lubricant L from the first side face oil supply hole 71, a part of the second oil path 65 can be blocked by using a first block member 81, and the second side face oil supply hole 73 can be blocked by using a second block member 83.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to an end cap for a linear guide device and a linear guide device using the end cap. [Background technology]

[0002] Conventionally, a linear guide device includes a guide rail extending in the axial direction and a slider mounted on the guide rail so as to be movable relative to the guide rail, and the slider moves relative to the guide rail in the axial direction via a plurality of rolling elements (balls) that circulate between rolling element rolling grooves formed on the guide rail and the slider. Such linear guide devices are widely used in the linear movement mechanisms of various production facilities. In order to use this linear guide device stably for a long period of time, it is important to supply a sufficient amount of lubricant to the rolling element rolling grooves and the balls to maintain a good lubricated state.

[0003] In order to maintain a lubricated state, a linear guide device has been proposed in which oil inlets are provided on both sides of the end caps located at both ends in the direction of movement of the slider, connecting each oil inlet to the left and right rolling element circulation paths of the end caps, thereby enabling lubricant to be supplied evenly to each of the left and right rolling element circulation paths.

[0004] In addition, linear motion guiding devices used in general-purpose machine tools and the like ensure their running life by periodic lubrication. These linear motion guiding devices are often used in various oiling positions (front, top, side) and orientations (wall-mounted, vertical), and a stable supply of lubricant is required regardless of the oiling position or orientation of the linear motion guiding device. However, depending on the oiling position or the orientation of the linear motion guiding device, lubrication does not go well due to the influence of vertical force, and especially when the oil lubrication position is on the side or the linear motion guiding device is in a wall-mounted orientation, an imbalance in the supply amount due to the rolling rows is likely to occur.

[0005] Patent Document 1 discloses an end cap capable of efficiently supplying lubricant to a rolling element circulation passage. In this end cap, an oil passage is formed that connects a front oil supply hole and a side oil supply hole formed on the outer circumferential surface with a direction change passage. The end cap includes an end cap body and an oil passage unit that is fitted into the recess. The oil passage is composed of a first oil passage that connects the recess with the direction change passage, a second oil passage that connects the first oil passage with the side oil supply hole, and a third oil passage that connects the first oil passage with the second oil passage. The second oil passage and the third oil passage are arranged overlapping each other along the movement direction of the slider body in the end cap body. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 6443535 Summary of the Invention [Problem to be solved by the invention]

[0007] The end cap disclosed in Patent Document 1 defines a dedicated oil passage structure by an oil passage unit according to each situation where the attitude of the linear guide device, the oil supply position, etc. change. However, such an end cap structure requires setting parts of an appropriate oil passage structure according to the situation, like the oil passage unit, and the number of parts increases, which may cause problems in design, parts management, etc.

[0008] The present invention provides an end cap that can appropriately supply lubricant regardless of the attitude of a linear guide device, and a linear guide device using the end cap. [Means for solving the problem]

[0009] The above object of the present invention can be achieved by the following configuration. (1) An end cap for a linear guide device that is joined to an end surface in a moving direction of a slider body that is movably supported on a guide rail of the linear guide device, An end cap body; a direction change passage formed on a back surface of the end cap body that abuts against the end surface of the slider body, the direction change passage connecting a load rolling path formed between the guide rail and the slider body and a rolling element return path of the slider body; a front oil supply hole that opens to the rear surface and a front surface on the opposite side and is used to supply a lubricant from the outside; A first oil passage formed on the back surface and directly communicating with the direction change passage; a second oil passage that communicates the front oil supply hole and the first oil passage and supplies the lubricant supplied from the front oil supply hole to the direction change passage; a third oil passage extending in the width direction of the end cap body and communicating with the front oil supply hole; The second oil passage can be blocked by using a first blocking member at a position spaced apart from the front oil supply hole on both sides in the width direction of the end cap body. End caps. (2) An engagement hole with which the first blocking member engages is provided in the second oil passage at a position spaced apart from the front oil supply hole on both sides in the width direction of the end cap body, By engaging the first blocking member with the engagement hole, a portion of the second oil passage is blocked. The end cap described in (1). (3) When the linear guide device is installed on a horizontal mounting surface and lubricant is supplied from the front oil supply hole, the second oil passage is not blocked. An end cap as described in (1) or (2). (4) A first side oil supply hole that opens on one side of the end cap body and supplies lubricant from the outside; a second side oil supply hole that opens to the other side surface of the end cap body and supplies a lubricant from the outside; the first side oil supply hole and the second side oil supply hole are closable by a second closure member; The third oil passage communicates the first side oil supply hole and the second side oil supply hole, and communicates with the direction change passage via the front oil supply hole, the second oil passage, and the first oil passage; when supplying lubricant from the first side oil supply hole, a part of the second oil passage can be closed by using the first closing member, and the second side oil supply hole can be closed by using the second closing member; When supplying lubricant from the second side oil supply hole, a part of the second oil passage can be blocked by using the first blocking member, and the first side oil supply hole can be blocked by using the second blocking member. An end cap as described in (1) or (2). (5) In a state in which the linear guide device is installed on a horizontal mounting surface, when lubricant is supplied from the front oil supply hole, the second oil passage is not blocked, and the first side oil supply hole and the second side oil supply hole are blocked by the second blocking member. (4) The end cap described in (1). (6) The first direction change path adjacent to the one side surface and the second direction change path adjacent to the other side surface are formed in the left and right sleeve portions of the end cap body, When supplying lubricant from the first side oil supply hole or the second side oil supply hole, a portion of the second oil passage communicating with the first direction change passage or the second direction change passage can be blocked by using the first blocking member. (4) The end cap described in (1). (7) The linear guide device is installed on a horizontal mounting surface. When supplying lubricant from the first side oil supply hole, a portion of the second oil passage that communicates with the first direction change passage is blocked by the first blocking member; the second side oil supply hole is closed with the second closing member, The lubricant supplied from the first side oil supply hole is supplied to the first direction change passage through the first oil passage, and is supplied to the second direction change passage through the third oil passage, the front oil supply hole, the second oil passage, and the first oil passage; When supplying lubricant from the second side oil supply hole, a portion of the second oil passage that communicates with the second direction change passage is blocked by the first blocking member; the first side oil supply hole is closed by the second closing member, The lubricant supplied from the second side oil supply hole is supplied to the second direction change passage through the first oil passage, and is also supplied to the first direction change passage through the third oil passage, the front oil supply hole, the second oil passage, and the first oil passage. (6) The end cap described in (6). (8) In a state where the linear guide device is installed on a vertical or oblique mounting surface, and the lower side in the vertical direction is defined as the ground side, when lubricant is supplied from the first side oil supply hole located on the ground side, a portion of the second oil passage that communicates with the first direction change passage is blocked by the first blocking member; the second side oil supply hole is closed with the second closing member, The lubricant supplied from the first side oil supply hole is supplied to the first direction change passage through the first oil passage, and is also supplied to the second direction change passage through the third oil passage, the front oil supply hole, the second oil passage, and the first oil passage. (6) The end cap described in (6). (9) In a state where the linear guide device is installed on a vertical or inclined mounting surface, when the upper side in the vertical direction is defined as the top side, when lubricant is supplied from the second side oil supply hole located on the top side, a portion of the second oil passage that communicates with the second direction change passage is blocked by the first blocking member; the first side oil supply hole is closed by the second closing member, The lubricant supplied from the second side oil supply hole is supplied to the second direction change passage through the first oil passage, and is also supplied to the first direction change passage through the third oil passage, the front oil supply hole, the second oil passage, and the first oil passage. (6) The end cap described in (6). (10) In a state in which the linear guide device is installed on a vertical or oblique mounting surface, when lubricant is supplied from the front oil supply hole, A fourth oil passage is provided that communicates the third oil passage and the second oil passage via the first side oil supply hole located on the ground side when the lower side in the vertical direction is the ground side, a portion of the second oil passage that communicates with the first direction change passage is blocked by the first blocking member; the first side oil supply hole and the second side oil supply hole are closed using the second closing member, The lubricant supplied from the front oil supply hole is supplied to the second direction change passage through the second oil passage and the first oil passage, and is supplied to the first direction change passage through the third oil passage, the fourth oil passage, and the first oil passage. (6) The end cap described in (6). (11) In a state where the linear guide device is installed on a reversely inclined mounting surface, when the upper side in the vertical direction is the top side, when lubricant is supplied from the first side oil supply hole located on the top side, a fourth oil passage that communicates the third oil passage and the second oil passage via the second side oil supply hole, a portion of the second oil passage that communicates with the first direction change passage is blocked by the first blocking member; the second side oil supply hole is closed with the second closing member, The lubricant supplied from the first side oil supply hole is supplied to the first direction change passage through the first oil passage, and is supplied to the second direction change passage through the third oil passage, the fourth oil passage, and the first oil passage. (6) The end cap described in (6). (12) In a state where the linear guide device is installed on a reversely inclined mounting surface, when the lower side in the vertical direction is the ground side, when lubricant is supplied from the second side oil supply hole located on the ground side, a fourth oil passage that communicates the third oil passage and the second oil passage via the first side oil supply hole, a portion of the second oil passage that communicates with the first direction change passage is blocked by the first blocking member; the first side oil supply hole is closed by the second closing member, The lubricant supplied from the second side oil supply hole is supplied to the first direction change passage via the third oil passage, the fourth oil passage, and the first oil passage, and is supplied to the second direction change passage via the first oil passage. (6) The end cap described in (6). (13) An engagement hole with which the first blocking member engages is provided in the second oil passage at a position spaced apart from the front oil supply hole on both sides in the width direction of the end cap body, the engagement hole, the first side oil supply hole, and the second side oil supply hole are configured with female threads, The first closing member and the second closing member are configured by male threads. An end cap according to any one of (4) to (12). (14) A linear guide device comprising the end cap according to any one of (1) to (13). Effect of the Invention

[0010] According to the present invention, it is possible to appropriately supply lubricant to the end cap regardless of the attitude of the linear guide device. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing a linear guide device according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic top view of the linear guide device shown in FIG. 1 with a portion of the top surface thereof cut away. [Diagram 3]FIG. 3 is a rear view of the end cap according to the embodiment of the present invention. [Figure 4] Figure 4 is a diagram showing the flow of lubricant when it is supplied to a linear guide device installed on a horizontal mounting surface, where (a) is a diagram showing the flow of lubricant when it is supplied from the front side of the end cap, and (b) is a diagram showing the flow of lubricant when it is supplied from the side of the end cap. [Diagram 5] FIG. 5 is a diagram showing the flow of lubricant when it is supplied to a linear guide device installed on a vertical mounting surface, where (a) is a diagram showing the flow of lubricant when it is supplied from the front side of the end cap, (b) is a diagram showing the flow of lubricant when it is supplied from the bottom side of the end cap, and (c) is a diagram showing the flow of lubricant when it is supplied from the top side of the end cap. [Figure 6] Figure 6 is a diagram showing the flow of lubricant when it is supplied to a linear guide device installed on an inclined mounting surface, where (a) is a diagram showing the flow of lubricant when it is supplied from the front side of the end cap, (b) is a diagram showing the flow of lubricant when it is supplied from the bottom side of the end cap, and (c) is a diagram showing the flow of lubricant when it is supplied from the top side of the end cap. [Figure 7] Figure 7 is a diagram showing the flow of lubricant when it is supplied to a linear guide device installed on an inverted oblique mounting surface, where (a) is a diagram showing the flow of lubricant when it is supplied from the top side of the end cap, and (b) is a diagram showing the flow of lubricant when it is supplied from the bottom side of the end cap. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the end cap and the linear guide device according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiment described below, and can be modified and carried out as desired without departing from the gist of the present invention.

[0013] As shown in FIG. 1 and FIG. 2, the linear guide device 1 of this embodiment includes a guide rail 3 extending in one direction, and a slider 20 with a C-shaped cross section that is attached so as to straddle the guide rail 3 and is movable in the axial direction relative to the guide rail 3. In this embodiment, the front-rear direction represents the direction in which the slider 20 moves along the guide rail 3, and the left-right direction represents the width direction of the slider 20 attached to the guide rail 3. In addition, in the embodiment shown below, an example is shown in which the linear guide device 1 is used in various positions (horizontal, wall-mounted, vertical), and the upper side or upper side represents the side of the slider 20 relative to the attached surface when the linear guide device 1 is installed on a horizontal attached surface and the slider 20 is attached to straddle it, as in the case shown in FIG. 1 and FIG. 2. Furthermore, the lower side or lower side represents the side of the attached surface in the same case as above.

[0014] The guide rail 3 is made of metal, and two rail side rolling grooves 5 are formed on each of the left and right side surfaces 3b along the axial direction of the guide rail 3. The guide rail 3 has a plurality of rail mounting holes 4 penetrating the guide rail 3 in the height direction, and rail fixing bolts 6 are inserted into these rail mounting holes 4 to fix the guide rail 3 to a mounting surface (not shown).

[0015] The slider 20 comprises a slider body 21 having sleeve portions on both the left and right sides of the guide rail 3, a pair of end caps 30, 30 attached to both ends in the front-to-rear direction of the slider body 21, return guides 40, 40 incorporated in each of the end caps 30, 30, and a pair of side seals 50, 50 that seal the gap between the guide rail 3 and the end caps 30, 30.

[0016] The slider body 21 has a slider-side rolling groove 22 and a rolling element return path 23 on both the left and right sides. The slider-side rolling groove 22 is formed on the inner surfaces of both sleeves of the slider body 21 and faces the rail-side rolling groove 5, and the rail-side rolling groove 5 and the slider-side rolling groove 22 form a load rolling path 24. The rolling element return path 23 is formed by a hole penetrating the thick portions of both sleeves in the axial direction of the guide rail 3. In addition, a driven body fixing screw insertion hole 25 is provided on the upper surface of the slider body 21, through which a bolt for fixing a driven body such as a table to the slider 20 is inserted.

[0017] As shown in Fig. 3, the end caps 30 joined to both the front and rear ends of the slider body 21 are, for example, injection molded products of a synthetic resin material, and are formed with a C-shaped cross section similar to the slider body 21. The end caps 30 are end caps for the linear guide device joined to the movement direction end faces of the slider body 21 that are mounted so as to be relatively movably across the guide rail 3 of the linear guide device 1. The end caps 30 are provided with a plurality of mounting screw insertion holes 34, and the end caps 30, together with the side seals 50, are fastened to the end faces 21a (see Fig. 2) of the slider body 21 by mounting screws 35 (see Fig. 1) inserted through the mounting screw insertion holes 34.

[0018] The end cap 30 includes an end cap body 37 that constitutes the outer shape of the end cap 30. On the left and right sleeves 31 of the end cap body 37, outer grooves 32 (see FIG. 2) that are semidisk-shaped recesses are formed in two upper and lower stages on the back surface 31a side, which is an abutment surface that abuts against both front-rear direction end surfaces 21a of the slider body 21. A front surface 31b, which is the surface opposite the back surface 31a, is an abutment surface that abuts against the side seal 50.

[0019] The return guide 40 is attached to the end cap 30 by fitting into a fitting recess (not shown) provided in the end cap body 37. As a result, the inner groove (not shown) of the return guide 40 and the outer groove 32 (see FIG. 2) of the end cap 30 form a semi-doughnut-shaped (curved tubular) direction change path 26 in two stages, upper and lower, on both the left and right sides of the back surface of the end cap 30. The direction change path 26 is formed on the back surface 31a of the end cap body 37 that abuts against the end surface of the slider body 21, and communicates the load rolling path 24 formed between the guide rail 3 and the slider body 21 with the rolling element return path 23 of the slider body 21.

[0020] The return guide 40 is manufactured by injection molding of resin and metal, or by a 3D printer. The resin material may be engineering plastics such as polyacetal, polyamide, and PEEK materials, and may be reinforced by containing about 2 to 50% glass fiber or carbon fiber. The metal material may be austenitic stainless steel such as SUS304 and SUS316. It is also possible to form the return guide 40 by cutting the resin or metal material.

[0021] As a result, the direction change path 26 connects the loaded rolling path 24 and the rolling element return path 23 while curving along its central axis CL, and the loaded rolling path 24, the rolling element return path 23 and the direction change path 26 form a rolling element rolling path 27 (see FIG. 2). A plurality of rolling elements (balls) 51 made of steel, for example, are loaded in the rolling element rolling path 27, and these plurality of rolling elements 51 circulate endlessly while rolling in the rolling element rolling path 27 as the slider 20 moves relative to the roller 20.

[0022] Of the two openings of the direction change path 26, the opening on the side connected to the loaded rolling path 24 is referred to as a rail side opening 28, and the opening on the side connected to the rolling element return path 23 is referred to as a return path side opening 29.

[0023] Next, a description will be given of the oil passages and oil supply holes for supplying lubricant to the end cap 30. The end cap 30 includes a front oil supply hole 61, a first oil passage 63, a second oil passage 65, a first side oil supply hole 71, a second side oil supply hole 73, and a third oil passage 75, which are formed in the back surface 31a of the end cap body 37.

[0024] The front oil supply hole 61 is formed in the center of the connecting portion 33 that connects the left and right sleeve portions 31 (the center in the width direction of the end cap 30), penetrates the end cap body 37, and opens not only to the back surface 31a but also to the opposite front surface 31b. The front oil supply hole 61 communicates with the through hole 53 (see FIG. 1) that penetrates the side seal 50. The user can supply lubricant to the end cap 30 via the front oil supply hole 61 by supplying lubricant from the outside through the through hole 53.

[0025] The first oil passage 63 is formed linearly in the up-down direction in the left and right sleeve portions 31, and directly communicates with the direction change passage 26. The second oil passage 65 is formed in the connecting portion 33 so as to extend in the width direction of the end cap 30, and communicates between the front oil supply hole 61 and the left and right first oil passages 63. As a result, the lubricant supplied from the front oil supply hole 61 is supplied to the direction change passage 26 via the second oil passage 65 and the first oil passage 63.

[0026] The first side oil supply hole 71 opens on one side of the end cap body 37 and is an oil supply hole through which the user supplies lubricant from outside. The second side oil supply hole 73 opens on the other side of the end cap body 37 and is an oil supply hole through which the user supplies lubricant from outside.

[0027] The first side oil feed hole 71 includes two holes, a first upper oil feed hole 71a and a first lower oil feed hole 71b. The first upper oil feed hole 71a is directly connected to a third oil passage 75 described later, and the first lower oil feed hole 71b is directly connected to the first oil passage 63 and the second oil passage 65. The second side oil feed hole 73 includes two holes, a second upper oil feed hole 73a and a second lower oil feed hole 73b. The second upper oil feed hole 73a is directly connected to the third oil passage 75 described later, and the second lower oil feed hole 73b is directly connected to the first oil passage 63 and the second oil passage 65.

[0028] The third oil passage 75 directly connects the front oil supply hole 61 to the first upper oil supply hole 71a and the second upper oil supply hole 73a. The third oil passage 75 also connects to the first oil passage 63 via the front oil supply hole 61 and the second oil passage 65. Therefore, the third oil passage 75 can supply the lubricant supplied from the first side oil supply hole 71 or the second side oil supply hole 73 to the direction change passage 26.

[0029] More specifically, the lubricant supplied from the first side oil supply hole 71 or the second side oil supply hole 73 is supplied to the direction change passage 26 via the first oil passage 63, and is also supplied to the direction change passage 26 via the third oil passage 75, the front oil supply hole 61, the second oil passage 65 and the first oil passage 63.

[0030] In addition, a pair of engagement holes 91 are formed in the second oil passage 65 at positions spaced apart from the front oil supply hole 61 on both sides in the width direction of the end cap body 37. A first blocking member 81 (see FIG. 4(b)) described later is configured to be inserted into the engagement hole 91, so that the supply of lubricant in either the left or right direction can be blocked. In addition, a second blocking member 83 (see FIG. 4(b)) described later is also configured to be inserted into the first side oil supply hole 71 and the second side oil supply hole 73. However, when the second blocking member 83 is inserted into the first side oil supply hole 71, a fourth oil passage 77 described later is formed between the first upper oil supply hole 71a and the first lower oil supply hole 71b. Similarly, when the second blocking member 83 is inserted into the second side oil supply hole 73, a fourth oil passage 77 is also formed between the second upper oil supply hole 73a and the second lower oil supply hole 73b. Therefore, the second oil passage 65 and the third oil passage 75 communicate with each other via the fourth oil passage 77 and the front oil supply hole 61 .

[0031] Moreover, the direction change passage 26 includes a first direction change passage 26a adjacent to one side surface and a second direction change passage 26b adjacent to the other side surface, which are respectively formed in the left and right sleeve portions 31, 31 of the end cap body 37. As described later, in this configuration, when lubricant is supplied from the first side oil supply hole 71 or the second side oil supply hole 73, the portion of the second oil passage 65 that communicates with the first direction change passage 26a or the second direction change passage 26b can be blocked by using the first blocking member 81.

[0032] For example, when the user supplies lubricant from the first side oil supply hole 71, the user inserts a first blocking member 81 (described later) into the engagement hole 91 and inserts a second blocking member 83 (see FIG. 4(b)) into the second side oil supply hole 73. This blocks a part of the second oil passage 65 and blocks the second side oil supply hole 73. On the other hand, when the user supplies lubricant from the second side oil supply hole 73, the user inserts the first blocking member 81 into the engagement hole 91 and inserts the second blocking member 83 into the first side oil supply hole 71. This blocks a part of the second oil passage 65 and blocks the first side oil supply hole 71. With this configuration, the user can appropriately supply lubricant to each direction change path 26 of the end cap 30 regardless of the posture of the linear guide device 1.

[0033] Hereinafter, a method of supplying lubricant and a function of the end cap 30 according to the posture of the linear guide device 1, that is, according to the state of the mounting surface on which the linear guide device 1 is installed, will be described.

[0034] Figure 4 is a diagram showing the flow of lubricant when it is supplied to a linear guide device 1 installed on a horizontal mounting surface, where (a) is a diagram showing the flow of lubricant when it is supplied from the front of the end cap 30, and (b) is a diagram showing the flow of lubricant when it is supplied from the side of the end cap 30.

[0035] As shown in FIG. 4(a), when the linear guide device 1 is installed on a horizontal mounting surface and the user supplies the lubricant L from the front oil supply hole 61, the first side oil supply hole 71 (the first upper oil supply hole 71a and the first lower oil supply hole 71b) and the second side oil supply hole 73 (the second upper oil supply hole 73a and the second lower oil supply hole 73b) do not necessarily have to be formed on both sides of the end cap 30. In addition, the first blocking member 81 is not inserted into the engagement hole 91, and the second oil passage 65 is not blocked. When the end cap 30 in which the first side oil supply hole 71 and the second side oil supply hole 73 are not formed is used, the lubricant L (shown by a thick solid line, the same in the following figures) supplied from the front oil supply hole 61 is supplied to the direction change passage 26 via the second oil passage 65 and the first oil passage 63. This allows the user to supply the lubricant L in the same manner as with a normal linear guide device 1, without the need for any extra operations.

[0036] In addition, when an end cap 30 having a first side oil supply hole 71 and a second side oil supply hole 73 formed therein is used, by inserting a second blocking member 83 into the first side oil supply hole 71 and the second side oil supply hole 73, the lubricant L can be supplied to the direction change passage 26 through a path similar to that of the lubricant L described above.

[0037] On the other hand, a situation may arise in which it is difficult to supply lubricant from the front oil supply hole 61 due to factors such as the position of the slider 20. In such a situation, the user may supply lubricant L from the first side oil supply hole 71 as shown in FIG.

[0038] In this case, the user closes the engagement hole 91 communicating with the first direction change passage 26a of the second oil passage 65, that is, the engagement hole 91 between the front oil supply hole 61 and the first lower oil supply hole 71b in the second oil passage 65, using the first closing member 81. Also, the second side oil supply hole 73 is closed using the second closing member 83. The lubricant L supplied from the first lower oil supply hole 71b of the first side oil supply hole 71 is supplied to the first direction change passage 26a via the first oil passage 63. The lubricant L supplied from the first upper oil supply hole 71a of the first side oil supply hole 71 is supplied to the second direction change passage 26b via the third oil passage 75, the front oil supply hole 61, the unclosed portion of the second oil passage 65, and the first oil passage 63. This allows the user to supply the lubricant L evenly to the first direction change path 26a and the second direction change path 26b without worrying about the lubricant L leaking.

[0039] As described above, even when the second blocking member 83 is inserted into the second side oil supply hole 73, the second upper oil supply hole 73a and the second lower oil supply hole 73b communicate with each other through the fourth oil passage 77 which is thinner than the second oil passage 65 and the third oil passage 75. Therefore, the lubricant L can be supplied to the second direction change passage 26b through the thick dashed line path (first upper oil supply hole 71a → third oil passage 75 → fourth oil passage 77 → first oil passage 63) in addition to the thick solid line path. However, since the flow of the lubricant L tends to select the second oil passage 65, the front oil supply hole 61, and the third oil passage 75 which are thicker than the fourth oil passage, the lubricant L is basically supplied according to the thick solid line path. In addition, the supply amount of the lubricant L is appropriately adjusted, but by adjusting the amount according to the characteristics of the end cap 30, it is possible to prevent the lubricant L from leaking out of the end cap 30.

[0040] Although not shown, the same applies when the user supplies lubricant L from the second side oil supply hole 73. The user uses a first blocking member 81 to block the engagement hole 91 communicating with the second direction change passage 26b of the second oil passage 65, i.e., the engagement hole 91 between the front oil supply hole 61 and the second lower oil supply hole 73b in the second oil passage 65. In addition, the user uses a second blocking member 83 to block the first side oil supply hole 71. The lubricant L supplied from the second lower oil supply hole 73b of the second side oil supply hole 73 is supplied to the second direction change passage 26b via the first oil passage 63. The lubricant L supplied from the second upper oil supply hole 73a of the second side oil supply hole 73 is supplied to the first direction change passage 26a via the third oil passage 75, the front oil supply hole 61, the unblocked portion of the second oil passage 65, and the first oil passage 63.

[0041] The blocking of the second oil passage 65 by the first blocking member 81 can be realized in various ways. In this embodiment, an engagement hole 91 is provided between the front oil supply hole 61 and the first lower oil supply hole 71b of the second oil passage 65, and between the front oil supply hole 61 and the second lower oil supply hole 73b, and the first blocking member 81 can engage with the engagement hole 91. Thus, by engaging the first blocking member 81 with the engagement hole 91, a part of the second oil passage 65 is blocked. This allows the user to easily block the second oil passage 65.

[0042] The engagement hole 91, the first side oil supply hole 71, and the second side oil supply hole 73 can be configured with a female thread that can be machined by tapping, for example. The first blocking member 81 and the second blocking member 83 can be configured with a male thread that can engage with the female thread. This allows the user to easily block the first side oil supply hole 71, the second side oil supply hole 73, and the second oil passage 65.

[0043] It is desirable that the first closing member 81 does not form a recess or protrusion on the back surface 31a or the front surface 31b when engaging with the engaging hole 91. Without such a protrusion, the end cap 30 can be attached in a state of intimate contact with the slider body 21 or the side seal 50 without providing any extra member. Furthermore, without a recess, accumulation of foreign matter such as dirt and dust can be prevented.

[0044] Next, a case where the linear guide device 1 is attached to a vertical mounting surface will be described. In this specification, in order to explain the direction when the orientation of the linear guide device 1 is changed, the vertical upper side is referred to as the top side, and the vertical lower side is referred to as the bottom side. FIG. 5 is a diagram showing the flow of the lubricant L when the lubricant L is supplied to the linear guide device 1 installed on a vertical mounting surface, where (a) is a diagram showing the flow of the lubricant L when the lubricant L is supplied from the front side of the end cap 30, (b) is a diagram showing the flow of the lubricant L when the lubricant L is supplied from the bottom side of the end cap 30, and (c) is a diagram showing the flow of the lubricant L when the lubricant L is supplied from the top side of the end cap 30.

[0045] As shown in FIG. 5(a), when the linear guide device 1 is installed on a vertical mounting surface and the user supplies the lubricant L from the front oil supply hole 61, the user closes the engagement hole 91 communicating with the first direction change passage 26a of the second oil passage 65 using the first closing member 81, and closes the first side oil supply hole 71 and the second side oil supply hole 73 using the second closing member 83. However, the first upper oil supply hole 71a and the first lower oil supply hole 71b communicate with each other via a fourth oil passage 77 that is narrower than the first oil passage 63, the second oil passage 65, and the third oil passage 75. In addition, the second upper oil supply hole 73a and the second lower oil supply hole 73b communicate with each other via a fourth oil passage 77 that is narrower than the first oil passage 63, the second oil passage 65, and the third oil passage 75.

[0046] The lubricant L supplied from the front oil supply hole 61 is supplied to the second direction change path 26b through the unblocked portion of the second oil path 65 and the first oil path 63. The lubricant L supplied from the front oil supply hole 61 is also supplied to the first direction change path 26a through the third oil path 75, the fourth oil path 77, and the first oil path 63. The fourth oil path 77 is narrower than the other oil paths, but the lubricant L can also flow to the fourth oil path 77 on the ground side due to the action of gravity. This allows the user to evenly supply the lubricant L to the first direction change path 26a and the second direction change path 26b without worrying about the lubricant L leaking.

[0047] Since the lubricant L flows easily through a thick oil passage, it is basically supplied along the path indicated by the thick solid line. However, it can also be supplied to the second direction change passage 26b via the path indicated by the thick dashed line (third oil passage 75 → fourth oil passage 77 on the top side → first oil passage 63). In the case of the configuration shown in FIG. 5(a), the lubricant L needs to reach the second direction change passage 26b against gravity, so a situation may occur in which the supply to the second direction change passage 26b is insufficient. Supplying the lubricant L along the thick dashed line is useful for preventing such a situation.

[0048] On the other hand, a situation may arise where it is difficult to supply lubricant from the front oil supply hole 61 due to factors such as the position of the slider 20. In such a situation, as shown in FIG. 5(b), the user may supply lubricant L from the first side oil supply hole 71 located on the ground side.

[0049] In this case, the user closes the portion of the second oil passage 65 that communicates with the first direction change passage 26a using the first blocking member 81, and closes the second side oil supply hole 73 using the second blocking member 83. However, the second upper oil supply hole 73a and the second lower oil supply hole 73b communicate with each other via a fourth oil passage 77 that is narrower than the first oil passage 63, the second oil passage 65, and the third oil passage 75. The lubricant L supplied from the first lower oil supply hole 71b of the first side oil supply hole 71 is supplied to the first direction change passage 26a via the first oil passage 63. The lubricant L supplied from the first upper oil supply hole 71a of the first side oil supply hole 71 is supplied to the second direction change passage 26b via the third oil passage 75, the front oil supply hole 61, the unblocked portion of the second oil passage 65, and the first oil passage 63. This allows the user to supply the lubricant L evenly to the first direction change path 26a and the second direction change path 26b without worrying about the lubricant L leaking.

[0050] Since the lubricant L easily flows through a thick oil passage, it is basically supplied along the path indicated by the thick solid line. However, it can also be supplied to the second direction change passage 26b via the path indicated by the thick dashed line (third oil passage 75 → fourth oil passage 77 on the top side → first oil passage 63). In the case of the embodiment shown in Fig. 5(b), as in the embodiment shown in Fig. 5(a), the supply of the lubricant L as indicated by the thick dashed line is useful for preventing a shortage of the supply to the second direction change passage 26b.

[0051] Also, as shown in FIG. 5(c), there are cases where the user supplies the lubricant L from the second side oil supply hole 73 located on the top side. In this case, the user uses the first blocking member 81 to block the portion of the second oil passage 65 that communicates with the second direction change passage 26b, and blocks the first side oil supply hole 71 using the second blocking member 83. The lubricant L supplied from the second lower oil supply hole 73b of the second side oil supply hole 73 is supplied to the second direction change passage 26b via the first oil passage 63. The lubricant L supplied from the second upper oil supply hole 73a of the second side oil supply hole 73 is supplied to the first direction change passage 26a via the third oil passage 75, the front oil supply hole 61, the unblocked portion of the second oil passage 65, and the first oil passage 63. This allows the user to supply the lubricant L evenly to the first direction change path 26a and the second direction change path 26b without worrying about the lubricant L leaking.

[0052] Even when the second blocking member 83 is inserted into the first side oil supply hole 71, the first upper oil supply hole 71a and the first lower oil supply hole 71b are connected to each other through the fourth oil passage 77 which is thinner than the second oil passage 65 and the third oil passage 75. Therefore, the lubricant L can be supplied to the first direction change passage 26a through the thick dashed line path (the second upper oil supply hole 73a → the third oil passage 75 → the ground side fourth oil passage 77 → the first oil passage 63) in addition to the thick solid line path. However, since the flow of the lubricant L is likely to select the second oil passage 65, the front oil supply hole 61, and the third oil passage 75 which are thicker than the fourth oil passage, the lubricant L is basically supplied along the thick solid line path.

[0053] 6 is a diagram showing the flow of the lubricant L when the lubricant L is supplied to the linear guiding device 1 installed on an inclined mounting surface, (a) is a diagram showing the flow of the lubricant L when the lubricant L is supplied from the front of the end cap 30, (b) is a diagram showing the flow of the lubricant L when the lubricant L is supplied from the bottom side of the end cap 30, and (c) is a diagram showing the flow of the lubricant L when the lubricant L is supplied from the top side of the end cap 30. Here, the "linear guiding device 1 installed on an inclined mounting surface" refers to a linear guiding device 1 installed on a mounting surface that is not parallel to the vertical or horizontal direction, and in the end cap 30, the left and right sleeve portions 31 extend obliquely to the bottom side from the connecting portion 33 as a starting point.

[0054] As shown in FIG. 6(a), when the linear guide device 1 is installed on an inclined mounting surface and the user supplies the lubricant L from the front oil supply hole 61, the user closes the portion of the second oil passage 65 that communicates with the first direction change passage 26a using the first blocking member 81, and closes the first side oil supply hole 71 and the second side oil supply hole 73 using the second blocking member 83. The lubricant L supplied from the front oil supply hole 61 is supplied to the second direction change passage 26b through the unblocked portion of the second oil passage 65 and the first oil passage 63. The lubricant L supplied from the front oil supply hole 61 is supplied to the first direction change passage 26a through the third oil passage 75, the fourth oil passage 77, and the first oil passage 63. This allows the user to supply the lubricant L evenly to the first direction change path 26a and the second direction change path 26b without worrying about the lubricant L leaking.

[0055] On the other hand, a situation may arise where it is difficult to supply lubricant from the front oil supply hole 61 due to factors such as the position of the slider 20. In such a situation, as shown in FIG. 6(b), the user may supply lubricant L from the first side oil supply hole 71 located on the ground side.

[0056] In this case, the user closes the portion of the second oil passage 65 that communicates with the first direction change passage 26a using the first closing member 81, and closes the second side oil supply hole 73 using the second closing member 83. The lubricant L supplied from the first lower oil supply hole 71b of the first side oil supply hole 71 is supplied to the first direction change passage 26a via the first oil passage 63. The lubricant L supplied from the first upper oil supply hole 71a of the first side oil supply hole 71 is supplied to the second direction change passage 26b via the third oil passage 75, the front oil supply hole 61, the unclosed portion of the second oil passage 65, and the first oil passage 63. This allows the user to evenly supply the lubricant L to the first direction change passage 26a and the second direction change passage 26b without worrying about the lubricant L leaking.

[0057] Also, as shown in FIG. 6(c), there is a case where the user supplies the lubricant L from the second side oil supply hole 73 located on the top side. In this case, the user uses the first blocking member 81 to block the portion of the second oil passage 65 that communicates with the second direction change passage 26b, and blocks the first side oil supply hole 71 using the second blocking member 83. The lubricant L supplied from the second lower oil supply hole 73b of the second side oil supply hole 73 is supplied to the second direction change passage 26b via the first oil passage 63. The lubricant L supplied from the second upper oil supply hole 73a of the second side oil supply hole 73 is supplied to the first direction change passage 26a via the third oil passage 75, the front oil supply hole 61, the unblocked portion of the second oil passage 65, and the first oil passage 63. This allows the user to supply the lubricant L evenly to the first direction change path 26a and the second direction change path 26b without worrying about the lubricant L leaking.

[0058] In Fig. 6(a) to Fig. 6(c), the lubricant L supplied from any one of the front oil supply hole 61, the first side oil supply hole 71, and the second side oil supply hole 73 is basically supplied along the path indicated by the thick solid line. However, in the case of Fig. 6(a), the lubricant L can be supplied to the second direction change path 26b via the path indicated by the thick dashed line (the front oil supply hole 61 → the third oil passage 75 → the fourth oil passage 77 → the first oil passage 63) in addition to the path indicated by the thick solid line. In the case of Fig. 6(b), the lubricant L can be supplied to the second direction change path 26b via the path indicated by the thick dashed line (the first upper oil supply hole 71a → the third oil passage 75 → the fourth oil passage 77 → the first oil passage 63) in addition to the path indicated by the thick solid line. In the case of FIG. 6(c), the lubricant L can be supplied to the first direction change passage 26a through the thick dashed line path (second upper oil supply hole 73a → third oil passage 75 → fourth oil passage 77 → first oil passage 63) in addition to the thick solid line path. In either case, since the fourth oil passage 77 is narrower than the other oil passages, the thick solid line path is likely to be selected. However, particularly in the cases of FIG. 6(a) and FIG. 6(b), the lubricant L must reach the second direction change passage 26b against gravity, so that a situation may occur in which the supply to the second direction change passage 26b is insufficient. Supplying the lubricant L as shown by the thick dashed line is useful for preventing such a situation.

[0059] 7A and 7B are diagrams showing the flow of the lubricant L when the lubricant L is supplied to the linear guiding device 1 installed on an inversely oblique mounting surface, where (a) is a diagram showing the flow of the lubricant L when the lubricant L is supplied from the top side of the end cap 30, and (b) is a diagram showing the flow of the lubricant L when the lubricant L is supplied from the bottom side of the end cap 30. Here, the "linear guiding device 1 installed on an inversely oblique mounting surface" refers to the linear guiding device 1 installed on a mounting surface that is not parallel to the vertical or horizontal direction but faces diagonally toward the bottom side, and in the end cap 30, the left and right sleeve portions 31 extend diagonally toward the top side from the connecting portion 33 as a starting point.

[0060] As shown in FIG. 7(a), when the linear guide device 1 is installed on a reversely inclined mounting surface and the lubricant L is supplied from the first side oil supply hole 71 located on the top side, the user closes the portion of the second oil passage 65 that communicates with the first direction change passage 26a using the first closing member 81, and closes the second side oil supply hole 73 using the second closing member 83. The lubricant L supplied from the first lower oil supply hole 71b of the first side oil supply hole 71 is supplied to the first direction change passage 26a via the first oil passage 63. The lubricant L supplied from the first upper oil supply hole 71a of the first side oil supply hole 71 is supplied to the second direction change passage 26b via the third oil passage 75, the fourth oil passage 77, and the first oil passage 63. Although the fourth oil passage 77 is narrower than the other oil passages, the lubricant L can also flow to the fourth oil passage 77 on the ground side due to the action of gravity. However, in addition to the above-mentioned route, the lubricant L can also be supplied to the second direction change path 26b via the route indicated by the thick dashed line (first upper oil supply hole 71a → third oil passage 75 → front oil supply hole 61 → second oil passage 65 → first oil passage 63). This allows the user to supply the lubricant L evenly to the first direction change path 26a and the second direction change path 26b without worrying about the lubricant L leaking.

[0061] As shown in FIG. 7(b), when supplying the lubricant L from the second side oil supply hole 73 located on the ground side, the user uses the first blocking member 81 to block the portion of the second oil passage 65 communicating with the first direction change passage 26a, and blocks the first side oil supply hole 71 using the second blocking member 83. The lubricant L supplied from the second lower oil supply hole 73b of the second side oil supply hole 73 is supplied to the second direction change passage 26b via the first oil passage 63. The lubricant L supplied from the second upper oil supply hole 73a of the second side oil supply hole 73 is supplied to the first direction change passage 26a via the third oil passage 75, the fourth oil passage 77, and the first oil passage 63. This allows the user to supply the lubricant L evenly to the first direction change passage 26a and the second direction change passage 26b without worrying about the lubricant L leaking.

[0062] As shown in Figures 7(a) and 7(b), even when the linear guide device 1 is installed on a mounting surface at an inverse angle, it is possible to supply lubricant L from the front oil supply hole 61, as in Figures 4(a), 5(a), and 6(a).

[0063] As described above, when the end cap 30 of this embodiment is used to supply lubricant from the front oil supply hole 61 in a horizontal position, the lubricant can be easily supplied to the first direction change passage 26a and the second direction change passage 26b without forming the first side oil supply hole 71 and the second side oil supply hole 73. In addition, the end cap 30 of this embodiment has a structure capable of blocking a part of the second oil passage 65, and includes a third oil passage 75 that extends in the width direction of the end cap body 37 and communicates with the front oil supply hole 61. Therefore, the lubricant can be easily circulated from the side of the end cap 30 through the third oil passage 75 into the end cap by only forming the first side oil supply hole 71 and the second side oil supply hole 73 that communicate with the third oil passage 75. Furthermore, by simply blocking at least one of the second oil passage, the first side oil supply hole 71, and the second side oil supply hole 73, the lubricant L can be uniformly supplied to the first direction change path 26a and the second direction change path 26b in any position of the linear guide device 1 as shown in Fig. 4 to Fig. 7. Therefore, there is no need for dedicated parts other than ordinary members, such as dedicated parts for changing the shape of the oil passage. Therefore, it is possible to change the shared position of the lubricant between the front, one side, and the other side without increasing the type and number of parts, which makes it easier to manage parts in production and also prevents mistakes in setting parts during operation.

[0064] The present invention is not limited to the above-described embodiment, and can be appropriately modified, improved, etc. In addition, the material, shape, size, numerical value, form, number, arrangement location, etc. of each component in the above-described embodiment are arbitrary as long as the present invention can be achieved, and are not limited. [Explanation of symbols]

[0065] 1 Linear guide device 3 Guide rail 3b Left and right sides 5 Rail side rolling groove 20 Slider 21 Slider body 21a End face (end face on the side in the direction of slider movement) 22 Slider side rolling groove 23 Rolling element return path 24 Load rolling path 26 Turning Point 26a First Turning Point 26b Second Turning Point 27 Rolling body rolling path 28 Rail side opening 29 Return road side opening 30 End Cap 31a back 31b front 32 Outer groove 37 End cap body 40 Return Guide 50 Side seal 51 Rolling elements 61 Front oil hole 63 First Oil Pipe 65 Second Oil Route 71 First side oil hole 71a First upper oil supply hole 71b First lower oil hole 73 Second side oil hole 73a Second upper oil fill hole 73b Second lower oil hole 75 The third oil route 81 First blocking member 83 Second blocking member CL Central axis of turning path L Lubricant

Claims

1. An end cap for a linear guide device that is joined to an end surface in a moving direction of a slider body that is movably supported on a guide rail of the linear guide device, An end cap body; a direction change passage formed on a back surface of the end cap body that abuts against the end surface of the slider body, the direction change passage connecting a load rolling path formed between the guide rail and the slider body and a rolling element return path of the slider body; a front oil supply hole that opens to the rear surface and a front surface on the opposite side and is used to supply a lubricant from the outside; A first oil passage formed on the back surface and directly communicating with the direction change passage; a second oil passage that communicates the front oil supply hole and the first oil passage and supplies the lubricant supplied from the front oil supply hole to the direction change passage; a third oil passage extending in a width direction of the end cap body and communicating with the front oil supply hole; The second oil passage can be blocked by a first blocking member at a position spaced apart from the front oil supply hole on both sides in the width direction of the end cap body. End caps.

2. an engagement hole with which the first blocking member engages is provided in the second oil passage at a position spaced apart from the front oil supply hole on both sides in a width direction of the end cap body, By engaging the first blocking member with the engagement hole, a portion of the second oil passage is blocked. The end cap of claim 1 .

3. When the linear guide device is installed on a horizontal mounting surface and lubricant is supplied from the front oil supply hole, the second oil passage is not blocked. The end cap of claim 1 .

4. a first side oil supply hole that opens on one side of the end cap body and that supplies a lubricant from the outside; a second side oil supply hole that opens to the other side surface of the end cap body and that supplies a lubricant from the outside; the first side oil supply hole and the second side oil supply hole are closable by a second closure member; the third oil passage communicates with the first side oil supply hole and the second side oil supply hole, and communicates with the direction change passage via the front oil supply hole, the second oil passage, and the first oil passage; when supplying lubricant from the first side oil supply hole, a part of the second oil passage can be closed by using the first closing member, and the second side oil supply hole can be closed by using the second closing member, when supplying lubricant from the second side oil supply hole, a part of the second oil passage can be closed by using the first closing member, and the first side oil supply hole can be closed by using the second closing member. The end cap of claim 1 .

5. When the linear guide device is installed on a horizontal mounting surface and lubricant is supplied from the front oil supply hole, the second oil passage is not blocked, and the first side oil supply hole and the second side oil supply hole are blocked by the second blocking member. The end cap of claim 4.

6. a first turning path adjacent to the one side surface and a second turning path adjacent to the other side surface are formed on the left and right sleeves of the end cap body, When supplying lubricant from the first side oil supply hole or the second side oil supply hole, a portion of the second oil passage communicating with the first direction change passage or the second direction change passage can be blocked by the first blocking member. The end cap of claim 4.

7. The linear guide device is installed on a horizontal mounting surface. When supplying lubricant from the first side oil supply hole, a portion of the second oil passage that communicates with the first direction change passage is blocked by the first blocking member; the second side oil supply hole is closed using the second closing member, The lubricant supplied from the first side oil supply hole is supplied to the first direction change passage through the first oil passage, and is supplied to the second direction change passage through the third oil passage, the front oil supply hole, the second oil passage, and the first oil passage, When supplying lubricant from the second side oil supply hole, a portion of the second oil passage that communicates with the second direction change passage is blocked by the first blocking member; the first side oil supply hole is closed by the second closing member, The lubricant supplied from the second side oil supply hole is supplied to the second direction change passage through the first oil passage, and is also supplied to the first direction change passage through the third oil passage, the front oil supply hole, the second oil passage, and the first oil passage. The end cap of claim 6.

8. When the linear guide device is installed on a vertical or oblique mounting surface and the lower side in the vertical direction is defined as the ground side, when lubricant is supplied from the first side oil supply hole located on the ground side, a portion of the second oil passage that communicates with the first direction change passage is blocked by the first blocking member; the second side oil supply hole is closed using the second closing member, The lubricant supplied from the first side oil supply hole is supplied to the first direction change passage through the first oil passage, and is also supplied to the second direction change passage through the third oil passage, the front oil supply hole, the second oil passage, and the first oil passage. The end cap of claim 6.

9. When the linear guide device is installed on a vertical or inclined mounting surface and the upper side in the vertical direction is the top side, when lubricant is supplied from the second side oil supply hole located on the top side, a portion of the second oil passage that communicates with the second direction change passage is blocked by the first blocking member; the first side oil supply hole is closed by the second closing member, The lubricant supplied from the second side oil supply hole is supplied to the second direction change passage through the first oil passage, and is also supplied to the first direction change passage through the third oil passage, the front oil supply hole, the second oil passage, and the first oil passage. The end cap of claim 6.

10. When the linear guide device is installed on a vertical or oblique mounting surface and lubricant is supplied from the front oil supply hole, a fourth oil passage that communicates the third oil passage and the second oil passage via the first side oil supply hole located on the ground side when a vertically downward side is the ground side; a portion of the second oil passage that communicates with the first direction change passage is blocked by the first blocking member; the first side oil supply hole and the second side oil supply hole are closed using the second closing member, The lubricant supplied from the front oil supply hole is supplied to the second direction change passage through the second oil passage and the first oil passage, and is supplied to the first direction change passage through the third oil passage, the fourth oil passage, and the first oil passage. The end cap of claim 6.

11. When the linear guide device is installed on a reverse oblique mounting surface and the upper side in the vertical direction is the top side, when lubricant is supplied from the first side oil supply hole located on the top side, a fourth oil passage that communicates the third oil passage and the second oil passage via the second side oil supply hole, a portion of the second oil passage that communicates with the first direction change passage is blocked by the first blocking member; the second side oil supply hole is closed using the second closing member, The lubricant supplied from the first side oil supply hole is supplied to the first direction change passage through the first oil passage, and is also supplied to the second direction change passage through the third oil passage, the fourth oil passage, and the first oil passage. The end cap of claim 6.

12. When the linear guide device is installed on a reverse oblique mounting surface and the lower side in the vertical direction is the ground side, when lubricant is supplied from the second side oil supply hole located on the ground side, a fourth oil passage that communicates the third oil passage and the second oil passage via the first side oil supply hole, a portion of the second oil passage that communicates with the first direction change passage is blocked by the first blocking member; the first side oil supply hole is closed by the second closing member, The lubricant supplied from the second side oil supply hole is supplied to the first direction change path via the third oil passage, the fourth oil passage, and the first oil passage, and is supplied to the second direction change path via the first oil passage. The end cap of claim 6.

13. an engagement hole with which the first blocking member engages is provided in the second oil passage at a position spaced apart from the front oil supply hole on both sides in a width direction of the end cap body, the engagement hole, the first side oil supply hole, and the second side oil supply hole are configured with female threads, The first closing member and the second closing member are configured by male threads. The end cap of claim 4.

14. A linear guide device comprising the end cap according to any one of claims 1 to 13.

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