Cover member and linear motion guide unit

Abstract

The cover member includes a zipper extending in the longitudinal direction, and covers the mechanical element component. The cover member includes a wall portion on which a zipper is provided, and the wall portion forms a space for accommodating the mechanical element component. The zipper comprises a right side element which extends along the long side direction; a left side member extending in the longitudinal direction along the right side member and engageable with the right side member; a front slide attached to the right element and the left element; and a rear slider attached to the right member and the left member and disposed apart from the front slider in the longitudinal direction. When the front slide member and the rear slide member move in the longitudinal direction, the front slide member and the rear slide member move in the direction opposite to the side where the opposite side is located to separate the right element and the left element from each other, and move in the direction of the side where the opposite side is located to engage the right element and the left element with each other. The wall part is provided with a surface sticking buckle.

Description

Technical Field

[0001] The present disclosure relates to a cover member and a linear guide unit. This application claims priority to Japanese Application No. 2022-97976 filed on June 17, 2022, and all the contents described in the above Japanese Application are incorporated herein by reference. Background Art

[0002] A dustproof guide device is known in which a part of a movable body protrudes to the outside through an opening formed by an outer cover, and the movable body moves along the opening (for example, see Patent Document 1). According to the dustproof guide device disclosed in Patent Document 1, a plurality of sealing members each formed in a strip shape and having flexibility are arranged along the edge of the opening, and the top ends of the sealing members overlap each other.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2000-230618 Summary of the invention

[0006] Problems to be solved by the invention

[0007] In order to improve dustproofness and waterproofness, a cover member is sometimes provided on a mechanical element component included in a linear guide unit such as a guide rail and a sliding member to avoid exposure of the guide rail and the sliding member as much as possible. The cover member used to improve the sealing performance of such a mechanical element component is installed at a specified position for use, but it is desired to ensure high sealing performance and improve installation performance.

[0008] Therefore, one of the objects is to provide a cover member that can ensure high sealing performance and improve mounting performance.

[0009] Technical means of solving problems

[0010] The cover member disclosed in the present invention includes a zipper extending in the long side direction, covering the mechanical element components. The cover member includes a wall portion, on which the zipper is provided, and the wall portion forms a space for accommodating the mechanical element components. The zipper includes: a right element extending in the long side direction; a left element extending along the right element in the long side direction and capable of engaging with the right element; a front sliding member installed on the right element and the left element; and a rear sliding member installed on the right element and the left element, and configured separately from the front sliding member in the long side direction. When the front sliding member and the rear sliding member move in the long side direction, the front sliding member and the rear sliding member separate the right element and the left element from each other as they move in the direction opposite to the side where the other party is located, and engage the right element and the left element with each other as they move in the direction of the side where the other party is located. A surface fastener is provided on the wall portion.

[0011] Effects of the Invention

[0012] According to the cover member, it is possible to improve the mounting performance while ensuring high sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic perspective view showing a linear motion guide unit including a cover member in Embodiment 1 of the present disclosure.

[0014] Figure 2 yes Figure 1 A schematic top view of the linear guide unit shown.

[0015] Figure 3 yes Figure 1 A schematic bottom view of the linear guide unit shown.

[0016] Figure 4 yes Figure 1 A schematic front view of the linear guide unit shown.

[0017] Figure 5 is Figure 1 A schematic cross-sectional view when cut at the section indicated by VV in FIG.

[0018] Figure 6 is Figure 1 The illustrated linear motion guide unit is a schematic perspective view in which a portion of a cover member described later is omitted.

[0019] Figure 7 yes Figure 6 A schematic front view of the linear guide unit shown.

[0020] Figure 8 is Figure 1 The illustrated linear motion guide unit is a schematic perspective view in which a moving member described later is omitted from the illustration.

[0021] Fig. 9 is Figure 1 The illustrated linear motion guide unit is a schematic perspective view in which a portion of a moving member and a cover member are omitted from illustration.

[0022] Fig.10 This is a schematic perspective view of a linear motion guide unit in Embodiment 2 of the present disclosure.

[0023] Fig.11 This is a schematic perspective view showing a part of a linear motion guide unit in Embodiment 3 of the present disclosure.

[0024] Fig.12 This is a schematic perspective view showing a part of a linear motion guide unit in Embodiment 4 of the present disclosure.

[0025] Fig.13 This is a schematic perspective view showing a part of a linear motion guide unit in Embodiment 4 of the present disclosure.

[0026] Fig.14 yes Fig.12 A schematic top view of the linear guide unit shown.

[0027] Fig.15 yes Fig.12 A schematic bottom view of the linear guide unit shown.

[0028] Fig.16 yes Fig.12 A schematic front view of the linear guide unit shown.

[0029] Fig.17 is Figure 2 A schematic cross-sectional view when cut at the section shown by XVII-XVII in FIG.

[0030] Fig.18 is Fig.12 The illustrated linear motion guide unit is a schematic perspective view in which a portion of the cover member is omitted.

[0031] Fig.19 is Fig.12 The illustrated linear guide unit is a schematic perspective view in which the moving member is omitted from illustration.

[0032] Fig. 20 is Fig.12 The illustrated linear motion guide unit is a schematic perspective view in which a portion of a moving member and a cover member are omitted from illustration.

[0033] Fig.21 It is a schematic perspective view showing a linear motion guide unit in Embodiment 5 of the present disclosure.

[0034] Fig. 22 is Fig.21A schematic cross-sectional view when cut at the section shown in XXII-XXII. DETAILED DESCRIPTION

[0035] [Overview of Embodiments]

[0036] The cover member disclosed in the present invention includes a zipper extending in the long side direction, covering the mechanical element components. The cover member includes a wall portion, on which the zipper is provided, and the wall portion forms a space for accommodating the mechanical element components. The zipper includes: a right element extending in the long side direction; a left element extending along the right element in the long side direction and capable of engaging with the right element; a front sliding member installed on the right element and the left element; and a rear sliding member installed on the right element and the left element, and configured separately from the front sliding member in the long side direction. When the front sliding member and the rear sliding member move in the long side direction, the front sliding member and the rear sliding member separate the right element and the left element from each other as they move in the direction opposite to the side where the other party is located, and engage the right element and the left element with each other as they move in the direction of the side where the other party is located. A surface fastener is provided on the wall portion.

[0037] According to the cover member disclosed in the present invention, by accommodating the mechanical element components in the space formed by the wall portion, the mechanical element components can be appropriately covered. In addition, since the zipper of the above-mentioned structure is provided on the wall portion, the zipper can be opened and closed while maintaining high sealing. Here, since the wall portion is provided with a surface fastener, no screws or adhesives are required when installing the cover member, and positioning is easy. In addition, since the surface is fixed by the surface fastener, it is not easy to produce a gap, and high sealing can be maintained in the space where the mechanical element components are accommodated. Therefore, such a cover member can maintain high sealing and improve installation performance. Here, the zipper refers to a plurality of teeth (chain teeth) installed along the long side direction on both sides of the width direction (direction perpendicular to the long side direction) of the cut-off portion (opening area) extending along the long side direction.

[0038] In addition, the direct-acting guide unit disclosed in the present invention has: a guide rail, including an upper surface of the guide rail and a side surface of the guide rail respectively extending in the longitudinal direction, and a first track surface is provided on the side surface of the guide rail; a sliding member is relatively movably mounted on the guide rail, including a lower surface of the sliding member opposite to the upper surface of the guide rail and a second track surface opposite to the first track surface; a plurality of rolling bodies rolling on a track path formed by the first track surface and the second track surface; a cover member including a zipper extending in the longitudinal direction, covering the guide rail and the sliding member; a moving member arranged outside the cover member and moving together with the sliding member; and a connecting member connecting the sliding member and the moving member. The cover member includes a wall portion, a zipper is provided on the wall portion, and the wall portion forms a space for accommodating the guide rail and the sliding member. The zipper includes: a right element extending in the long side direction; a left element extending in the long side direction along the right element and capable of engaging with the right element; a front sliding member installed on the right element and the left element and fixed to the sliding member and the moving member; and a rear sliding member installed on the right element and the left element, arranged separately from the front sliding member in the long side direction, and fixed to the sliding member and the moving member. When the sliding member and the moving member move, the front sliding member and the rear sliding member separate the right element and the left element from each other as they move in the direction opposite to the other side, and engage the right element and the left element with each other as they move in the direction of the other side. The connecting member includes a supporting member, which is arranged between the front sliding member and the rear sliding member in the long side direction and supports the moving member. A surface fastener is provided on the wall.

[0039] According to the direct-acting guide unit disclosed in the present invention, the guide rail and the sliding member are accommodated in the space formed by the wall portion, and the cover member covers the guide rail and the sliding member. Moreover, when the sliding member is in motion, that is, when the sliding member performs linear reciprocating motion, the guide rail and the sliding member can be kept covered by the cover member through the separation and engagement of the right element and the left element included in the zipper, and the sliding member can be made to slide. Therefore, the dustproofness and waterproofness of the sliding member can be improved during sliding. Here, since the wall portion is provided with a surface fastener, screws or adhesives are not required when installing the cover member, and positioning is easy. In addition, since the surface is fixed by the surface fastener, it is not easy to produce a gap, and a high sealing performance can be maintained in the space where the guide rail and the sliding member are accommodated. Therefore, according to such a direct-acting guide unit, the high sealing performance of the cover member can be ensured and the improvement of the installability can be achieved.

[0040] In the above-mentioned direct-acting guide unit, the wall portion may also include a flat plate portion. The surface fastener may also be provided on one side of the thickness direction of the flat plate portion. In this way, by utilizing the flat plate portion included in the wall portion, the surface fastener can be appropriately installed at the installation position when the cover component is installed. Therefore, the installation performance can be further improved.

[0041] In the above-mentioned direct-acting guide unit, an opening connected to the space may also be provided on the wall. The surface fastener may also be provided in a manner of surrounding the opening. In this way, the sealing performance in the cover member can be further improved. Therefore, the high sealing performance can be further reliably maintained.

[0042] In the above-mentioned linear guide unit, the wall portion may include: an upper wall portion provided with a zipper; and a side wall portion extending crosswise with the upper wall portion. The surface fastener is installed on the side wall portion. In this way, the possibility of accumulation of foreign matter such as dust can be reduced for the portion provided with the surface fastener. Therefore, the possibility of foreign matter entering the cover member can be reduced, and the smooth movement of the sliding member can be further ensured.

[0043] In the linear guide unit, at least a portion of the cover member may include a structure formed by stacking a plurality of resin materials having different strengths. By adopting such a structure, it is possible to ensure appropriate flexibility in at least a portion of the cover member and maintain high strength. Therefore, it is possible to suppress shape deformation in at least a portion of the cover member and reduce the possibility of interference with the sliding member.

[0044] In the linear guide unit, at least a portion of the cover member is configured so that the inside can be visually checked from the outside. This makes it easy to understand the state of the inside of the cover member, and improves the maintainability.

[0045] In the above-mentioned linear guide unit, a sealing member may be provided on at least one of the front sliding member and the rear sliding member, and the sealing member cleans the upper part of the area where the right element and the left element mesh. In this way, the sealing member can reduce the possibility of foreign matter accumulated on the upper part of the cover member entering the inside of the cover member. Therefore, the possibility of foreign matter entering the track can be reduced, and the smooth movement of the sliding member can be further ensured.

[0046] In the above-mentioned direct-acting guide unit, the wall portion may also include: an upper wall portion provided with a zipper; and a side wall portion extending crosswise with the upper wall portion. The portion where the upper wall portion and the side wall portion are connected may also be formed by a curved surface. In this way, the cover member itself can be easily deformed, and the possibility of the cover member bending and bulging when the zipper is opened can be reduced. Therefore, the possibility of interference between the sliding member and the cover member can be reduced, and the smooth movement of the sliding member can be further ensured.

[0047] In the above-mentioned direct-acting guide unit, at least one of the right element and the left element may include an oil-containing resin provided on the mutually meshing portion. In this way, smooth movement of the right element and the left element can be promoted, and smooth movement of the sliding member can be ensured.

[0048] [Specific example of embodiment]

[0049] Next, an example of a specific embodiment of the linear guide unit disclosed in the present disclosure will be described with reference to the drawings. In the following drawings, the same or corresponding parts are denoted by the same reference numerals, and their description will not be repeated.

[0050] (Implementation Method 1)

[0051] First, Embodiment 1 which is an embodiment of the present disclosure will be described. Figure 1 1 is a schematic perspective view showing a linear guide unit including a cover member in Embodiment 1 of the present disclosure. Figure 1 In the figures shown below, the X direction indicates the width direction of the direct-acting guide unit, i.e., the short side direction, the Y direction indicates the long side direction of the direct-acting guide unit, and the Z direction indicates the thickness direction (height direction) of the direct-acting guide unit. The X direction, the Y direction, and the Z direction are orthogonal to each other. In addition, from the perspective of convenience of explanation, the direction indicated by the arrow X is set to the left, the direction opposite to the arrow X is set to the right, the direction indicated by the arrow Y is set to the forward direction, the direction opposite to the arrow Y is set to the backward direction, the direction indicated by the arrow Z is set to the upward direction, and the direction opposite to the arrow Z is set to the downward direction, but these are only related to Figure 1 The direction may be changed to any one of left and right, up and down, front and back, etc., depending on the installation condition of the direct-acting guide unit, for example.

[0052] Figure 2 yes Figure 1 A schematic top view of the linear guide unit shown. Figure 2 is viewed in the direction opposite to the direction indicated by arrow Z Figure 1 The figure shows the linear guide unit. Figure 2 In the figure, the guide rail is represented by a dot-dash line. Figure 3 yes Figure 1 A schematic bottom view of the linear guide unit shown. Figure 3 Observe in the direction indicated by arrow Z Figure 1 The figure shows the linear guide unit. Figure 4 yes Figure 1 A schematic front view of the linear guide unit shown. Figure 4 Observe in the direction indicated by arrow Y Figure 1 The figure shows the linear guide unit. Figure 5 is Figure 1 A schematic cross-sectional view when cut at the section indicated by VV in FIG. Figure 6 is Figure 1 The illustrated linear motion guide unit is a schematic perspective view in which a portion of a cover member described later is omitted. Figure 7 yes Figure 6 A schematic front view of the linear guide unit shown. Figure 8 is Figure 1The illustrated linear motion guide unit is a schematic perspective view in which a moving member described later is omitted from the illustration. Fig. 9 is Figure 1 The illustrated linear motion guide unit is a schematic perspective view in which a portion of a moving member and a cover member are omitted from illustration.

[0053] Reference Figures 1 to 9 The linear guide unit 10a of the first embodiment of the present disclosure includes a guide rail 11a, a sliding member 21a, a plurality of balls 20a as rolling bodies, a cover member 31a, a moving member 51a, and a connecting member 56a. In addition, such a structure including the balls 20a as rolling bodies can make the device structure compact. The structure of each component is described in detail below.

[0054] The guide rail 11a includes a guide rail upper surface 12a and a guide rail lower surface 12b arranged at intervals in the Z direction, a guide rail front surface 13a and a guide rail rear surface 13b arranged at intervals in the Y direction, and guide rail side surfaces 14a and 14b arranged at intervals on both sides of the guide rail 11a in the X direction. The guide rail side surface 14a is located on the right side of the guide rail 11a, and the guide rail side surface 14b is located on the left side of the guide rail 11a. The guide rail 11a includes first track surfaces 15a and 15b respectively arranged on the guide rail side surfaces 14a and 14b and extending in parallel along the long side direction. That is, the first track surfaces 15a and 15b are respectively arranged on the guide rail side surfaces 14a and 14b. The first track surfaces 15a and 15b are respectively recessed into a groove shape. The first track surfaces 15a and 15b are respectively recessed into a semicircular arc shape when viewed from the Y direction along the outer shape of the ball 20a as a rolling body.

[0055] The guide rail 11a is provided with a plurality of through holes 16, which penetrate from the guide rail upper surface 12a to the guide rail lower surface 12b along the Z direction (see in particular Figure 3 ). The plurality of through holes 16 are provided at intervals in the Y direction. For example, when the linear guide unit 10a is used, the through holes 16 are effectively used when the guide rail 11a is installed at a predetermined position.

[0056] Next, the structure of the sliding member 21a is described. The sliding member 21a is mounted on the guide rail 11a so as to be relatively movable. The sliding member 21a includes a pair of sleeves 23a and 23b disposed on both sides of the guide rail 11a in the width direction and a base 22a connected to the pair of sleeves 23a and 23b, respectively. The pair of sleeves 23a and 23b are disposed at intervals in the X direction. The base 22a includes a sliding member lower surface 24a (see in particular) which faces the guide rail upper surface 12a when the sliding member 21a is mounted on the guide rail 11a. Figure 5The slide member 21a is slidably mounted on the guide rail 11a. In the present embodiment, the slide member 21a is mounted so as to straddle the guide rail 11a and is movable in the Y direction.

[0057] The sliding member 21a includes a housing 25a, a front end cover 26a, a rear end cover 26b, and an intermediate member 27a. The housing 25a has a rectangular shape when viewed from the Z direction. The housing 25a includes second track surfaces 17a, 17b (see in particular the first track surfaces 15a, 15b) that are opposite to each other. Figure 5 ). The second track surfaces 17a and 17b extend parallel to the long side direction and are recessed into a groove shape. The second track surfaces 17a and 17b are recessed into a semicircular arc shape along the outer shape of the ball 20a when viewed from the Y direction. The track path 18a on which the ball 20a rolls is composed of the first track surface 15a and the second track surface 17a. The track path 18b on which the ball 20a rolls is composed of the first track surface 15b and the second track surface 17b.

[0058] The housing 25a is provided with return paths 19a and 19b which are parallel to the track paths 18a and 18b, respectively. The return paths 19a and 19b are shaped to extend along the longitudinal direction (Y direction), and the plurality of balls 20a move in the return paths 19a and 19b.

[0059] The front end cover 26a is mounted on one side of the long side direction of the housing 25a, specifically, on the side of the guide rail front surface 13a of the housing 25a in the long side direction, using bolts 30a. In addition, a direction conversion path (not shown) for converting the direction of the ball 20a is provided on the front end cover 26a. The rear end cover 26b is mounted on the other side of the long side direction of the housing 25a, specifically, on the side of the guide rail rear surface 13b of the housing 25a in the long side direction, using bolts 30a. In addition, a direction conversion path (not shown) for converting the direction of the ball 20a is provided on the rear end cover 26b. Each direction conversion path connects the track path 18a and the return path 19a, and connects the track path 18b and the return path 19b. A plurality of balls 20a circulate in the track path 18a, the direction conversion path provided in the front end cover 26a, the return path 19a, and the direction conversion path provided in the rear end cover 26b. In addition, the plurality of balls 20a circulate in the track path 18b, the direction-changing path provided in the front end cover 26a, the return path 19b, and the direction-changing path provided in the rear end cover 26b.

[0060] The housing 25a is provided with a plurality of mounting holes, specifically, four mounting holes (not shown) are provided at intervals in the X direction and the Y direction. The sliding member 21a and the moving member 51a including the housing 25a are connected by the connecting member 56a through the mounting holes.

[0061] The intermediate member 27a is plate-shaped and rectangular when viewed from the Z direction. The intermediate member 27a is arranged between the housing 25a, the front end cover 26a, the rear end cover 26b and the upper wall portion 32a of the cover member 31a described later in the Z direction. The intermediate member 27a is fixed to the housing 25a. The intermediate member 27a is slidably arranged together with the housing 25a, the front end cover 26a and the rear end cover 26b. A pair of positioning protrusions 29a and 29b protruding in the thickness direction (Z direction) are provided on the intermediate member 27a. A pair of positioning protrusions 29a and 29b are arranged at intervals in the X direction. A pair of positioning protrusions 29a and 29b are respectively shaped to extend in the Y direction. The positioning protrusions 29a and 29b are used to position the movable member 51a when the intermediate member 27a is connected to the movable member 51a.

[0062] Next, the structure of the cover member 31a covering the guide rail 11a and the sliding member 21a will be described. The cover member 31a includes a wall portion that forms a space 37a for accommodating the guide rail 11a and the sliding member 21a as mechanical elements. Specifically, the cover member 31a includes an upper wall portion 32a, a front side wall portion 33a, a rear side wall portion 33b, a right side wall portion 34a, a left side wall portion 34b, and a flat plate portion 35a. The space 37a for accommodating the guide rail 11a and the sliding member 21a as mechanical elements is formed by the upper wall portion 32a, the front side wall portion 33a, the rear side wall portion 33b, the right side wall portion 34a, and the left side wall portion 34b. The front side wall portion 33a is a side wall portion located on the front side, the rear side wall portion 33b is a side wall portion located on the rear side, the right side wall portion 34a is a side wall portion located on the right side, and the left side wall portion 34b is a side wall portion located on the left side. The outer shape of the cover member 31a is a rectangle whose long side direction (Y direction) is longer than the short side direction (X direction) when viewed from the thickness direction (Z direction) of the flat plate portion 35a. An opening portion 36a connected to the space 37a is provided in the center of the flat plate portion 35a. The front side wall portion 33a, the rear side wall portion 33b, the right side wall portion 34a and the left side wall portion 34b are arranged to stand up from the flat plate portion 35a. The front side wall portion 33a, the rear side wall portion 33b, the right side wall portion 34a and the left side wall portion 34b are respectively connected to the upper wall portion 32a and extend in a direction intersecting with the upper wall portion 32a. In the present embodiment, the front side wall portion 33a, the rear side wall portion 33b, the right side wall portion 34a and the left side wall portion 34b are arranged to stand up vertically in the thickness direction (Z direction) of the flat plate portion 35a. The front side wall portion 33a and the rear side wall portion 33b are arranged at intervals in the Y direction. The right side wall portion 34a and the left side wall portion 34b are arranged at intervals in the X direction. The upper wall portion 32a is arranged to be connected to the front side wall portion 33a, the rear side wall portion 33b, the right side wall portion 34a and the left side wall portion 34b. The upper wall portion 32a is arranged to be arranged in parallel with the flat plate portion 35a at intervals in the Z direction. The flat plate portion 35a is configured as a so-called flange shape, and in the XY plane, the flat plate portion 35a is respectively extended to the outside, that is, the side opposite to the side where the opening portion 36a is arranged, relative to the front side wall portion 33a, the rear side wall portion 33b, the right side wall portion 34a and the left side wall portion 34b.

[0063] The portion 39a where the upper wall portion 32a and the right side wall portion 34a are connected is formed by a curved surface. Similarly, the portion 39b where the upper wall portion 32a and the left side wall portion 34b are connected is also formed by a curved surface. In the present embodiment, the portion 39a where the upper wall portion 32a and the right side wall portion 34a are connected and the portion 39b where the upper wall portion 32a and the left side wall portion 34b are connected are R surfaces when the linear guide unit 10a is observed from the front (Y direction). The cover member 31a covers the guide rail 11a and the sliding member 21a in a space 37a surrounded by the upper wall portion 32a, the front side wall portion 33a, the rear side wall portion 33b, the right side wall portion 34a and the left side wall portion 34b. In this way, the cover member 31a itself can be easily deformed, and the possibility of the cover member 31a being bent or raised when the first zipper 41a or the second zipper 41b described later is opened can be reduced. Therefore, the possibility of interference between the slide member 21a and the cover member 31a can be reduced, and smoother movement of the slide member 21a can be ensured.

[0064] At least a portion of the cover member 31a includes a structure formed by stacking a plurality of resin materials of different strengths. Specifically, for example, the entire cover member 31a is formed of polyurethane rubber. Moreover, in a portion of the cover member 31a, namely the flat plate portion 35a, a polyurethane tarpaulin or a fusible sheet is installed by attaching or welding, so that appropriate softness can be ensured in the flat plate portion 35a and high strength can be maintained. That is, in the area where the flat plate portion 35a is located, a structure formed by stacking polyurethane rubber, polyurethane tarpaulin and the surface fastener 38a described later is formed. Therefore, shape deformation in the flat plate portion 35a, which is at least a portion of the cover member 31a, can be suppressed, and the possibility of interference with the sliding member 21a can be reduced. In addition, for example, in the material of at least a portion of the cover member 31a, the area between the first left element 43a and the second right element 42b described later can also be composed of an elastomer other than polyurethane rubber.

[0065] The direct-acting guide unit 10a includes shielding members 61a and 61b. The shielding members 61a and 61b are plate-like members bent into an L-shaped shape and are arranged to extend along the long side direction. The shielding member 61a is installed on the guide rail side surface 14a, and is arranged between the guide rail side surface 14a and the first opening area 46a of the first zipper 41a described later in a direction perpendicular to the long side direction and when viewed from the guide rail upper surface 12a side. The shielding member 61b is installed on the guide rail side surface 14b, and is arranged between the guide rail side surface 14b and the second opening area 46b of the second zipper 41b described later in a direction perpendicular to the long side direction and when viewed from the guide rail upper surface 12a side.

[0066] The cover member 31a includes zippers (a first zipper 41a and a second zipper 41b) extending in the long side direction (Y direction) respectively. The first zipper 41a and the second zipper 41b are respectively arranged on the upper wall portion 32a. Specifically, the first zipper 41a is formed on the first belt member 47a, and the first belt member 47a formed with the first zipper 41a constitutes a part of the upper wall portion 32a of the cover member 31a. In addition, the second zipper 41b is formed on the second belt member 47b, and the second belt member 47b formed with the second zipper 41b constitutes a part of the upper wall portion 32a of the cover member 31a. The first zipper 41a and the second zipper 41b are arranged in parallel with a gap in the X direction. The first zipper 41a is arranged on the right side relative to the second zipper 41b. That is, in the present embodiment, two rows of zippers extending in the long side direction are arranged with a gap in the short side direction.

[0067] The structure of the first fastener 41a is described. The first fastener 41a includes a first right-side element 42a, a first left-side element 43a, a first front-side sliding member 44a, and a first rear-side sliding member 45a. The first right-side element 42a extends in the longitudinal direction. The first left-side element 43a is arranged to extend along the first right-side element 42a in the longitudinal direction. That is, the first right-side element 42a and the first left-side element 43a are arranged adjacent to each other in the X direction. The first left-side element 43a is configured to be able to mesh with the first right-side element 42a. The first front-side sliding member 44a is mounted on the first right-side element 42a and the first left-side element 43a. The first front-side sliding member 44a is fixed to the sliding member 21a, specifically, the intermediate member 27a. The first rear-side sliding member 45a is also mounted on the first right-side element 42a and the first left-side element 43a in the same manner as the first front-side sliding member 44a. The first rear-side sliding member 45a is arranged separately from the first front-side sliding member 44a in the longitudinal direction (Y direction). The first rear slider 45a is also fixed to the sliding member 21a, specifically, the intermediate member 27a, similarly to the first front slider 44a.

[0068] When the sliding member 21a moves, the first front sliding member 44a and the first rear sliding member 45a move in the opposite direction to the other side, thereby separating the first right element 42a and the first left element 43a from each other, and engage the first right element 42a and the first left element 43a with each other as they move in the direction to the other side. A first opening area 46a (see in particular FIG. 46 ) generated when the first right element 42a and the first left element 43a are separated is formed between the first front sliding member 44a and the first rear sliding member 45a in the long side direction. Figure 8 and Fig. 9). The first support members 57a and 58a described later are arranged in the first opening region 46a. In addition, a moving member 51a is arranged above the first opening region 46a, so that the first opening region 46a cannot be visually confirmed from the outside, especially from the Z direction.

[0069] Next, the structure of the second zipper 41b is described. The second zipper 41b includes a second right-side element 42b, a second left-side element 43b, a second front-side sliding member 44b, and a second rear-side sliding member 45b. The second right-side element 42b extends in the long-side direction. Regarding the configuration of the second zipper 41b, specifically, the first left-side element 43a of the first zipper 41a and the second right-side element 42b of the second zipper 41b are adjacently arranged with a gap in the X direction. The second left-side element 43b is arranged to extend along the second right-side element 42b in the long-side direction. That is, the second right-side element 42b and the second left-side element 43b are adjacently arranged in the X direction. The second left-side element 43b is configured to be able to mesh with the second right-side element 42b. The second front-side sliding member 44b is installed on the second right-side element 42b and the second left-side element 43b. The second front-side sliding member 44b is fixed to the sliding member 21a, specifically, the intermediate member 27a. The second rear side slider 45b is also attached to the second right side element 42b and the second left side element 43b in the same manner as the second front side slider 44b. The second rear side slider 45b is arranged to be separated from the second front side slider 44b in the long side direction (Y direction). The second rear side slider 45b is also fixed to the sliding member 21a, specifically, the intermediate member 27a, in the same manner as the second front side slider 44b.

[0070] When the sliding member 21a moves, the second front sliding member 44b and the second rear sliding member 45b move in the opposite direction to the other side, thereby separating the second right element 42b and the second left element 43b from each other, and move in the direction to the other side, thereby engaging the second right element 42b and the second left element 43b with each other. A second opening region 46b (particularly referring to FIG. 4B ) is formed between the second front sliding member 44b and the second rear sliding member 45b in the longitudinal direction when the second right element 42b and the second left element 43b are separated. Figure 8 and Fig. 9 ). The second support members 57b and 58b described later are arranged in the second opening region 46b. In addition, the moving member 51a is also arranged above the second opening region 46b, so that the second opening region 46b cannot be visually confirmed from the outside, especially from the Z direction.

[0071] The movable member 51a is plate-shaped. The outer shape of the movable member 51a is rectangular when viewed from the Z direction. The movable member 51a is arranged outside the cover member 31a. Specifically, the movable member 51a is arranged above the upper wall portion 32a of the cover member 31a. In addition, the movable member 51a is arranged to span two rows of first zippers 41a and second zippers 41b. A plurality of mounting holes 52a are provided on the movable member 51a, and a transport member (not shown) transported together with the movable member 51a is installed by using the mounting holes 52a. A plurality of connecting holes 53a are provided on the movable member 51a, and the connecting holes 53a are used to connect to the sliding member 21a, specifically, the intermediate member 27a included in the sliding member 21a. In the present embodiment, a total of four connecting holes 53a are provided at intervals in the X direction and the Y direction, respectively. In addition, the moving member 51a is provided with a pair of receiving recesses 54a, 54b (see in particular Figure 5 The receiving recesses 54a and 54b are shaped to receive a pair of positioning protrusions 29a and 29b provided on the intermediate member 27a. The moving member 51a is connected and fixed to the intermediate member 27a included in the sliding member 21a by the connecting member 56a, specifically the first supporting members 57a and 58a and the second supporting members 57b and 58b, through the connecting hole 53a and the receiving recesses 54a and 54b.

[0072] The connecting member 56a connects the sliding member 21a and the moving member 51a. The connecting member 56a includes first supporting members 57a, 58a and second supporting members 57b, 58b. The first supporting members 57a, 58a are bolt-shaped and extend in the Z direction, respectively. The first supporting members 57a, 58a are arranged at intervals in the long side direction. The first supporting members 57a, 58a are arranged between the first front side sliding member 44a and the first rear side sliding member 45a in the long side direction, respectively. Specifically, the first supporting members 57a, 58a are arranged in the first opening area 46a. That is, it is configured so that the sliding member 21a covered by the cover member 31a and the moving member 51a arranged outside the cover member 31a can be connected by the first supporting members 57a, 58a via the first opening area 46a. In addition, the second supporting members 57b, 58b are bolt-shaped and extend in the Z direction, respectively. The second supporting members 57b, 58b are arranged at intervals in the long side direction. The second supporting members 57b and 58b are respectively arranged between the second front sliding member 44b and the second rear sliding member 45b in the long side direction. Specifically, the second supporting members 57b and 58b are arranged in the second opening area 46b. That is, the sliding member 21a covered by the cover member 31a and the moving member 51a arranged outside the cover member 31a can be connected by the second supporting members 57b and 58b via the second opening area 46b. In this embodiment, the moving member 51a is supported by the first supporting members 57a and 58a and the second supporting members 57b and 58b.

[0073] When the first right-side element 42a and the first left-side element 43a are separated from each other in the direction perpendicular to the long-side direction and viewed from the guide rail upper surface 12a side, the first opening area 46a is arranged at a position avoiding the guide rail 11a. That is, the first opening area 46a is arranged at a position not overlapping the guide rail 11a when viewed from the Z direction. In the present embodiment, when the first fastener 41a is arranged at a position avoiding the guide rail 11a in the direction perpendicular to the long-side direction and viewed from the guide rail upper surface 12a side. Similarly, when the second right-side element 42b and the second left-side element 43b are separated from each other in the direction perpendicular to the long-side direction and viewed from the guide rail upper surface 12a side, the second opening area 46b is arranged at a position avoiding the guide rail 11a. That is, the second opening area 46b is arranged at a position not overlapping the guide rail 11a when viewed from the Z direction. In the present embodiment, when the second fastener 41b is arranged at a position avoiding the guide rail 11a in the direction perpendicular to the long-side direction and viewed from the guide rail upper surface 12a side. More specifically, the guide rail 11 a is arranged between the first opening region 46 a and the second opening region 46 b in the X direction when viewed from the guide rail upper surface 12 a side in the direction perpendicular to the longitudinal direction.

[0074] Here, the specific structure of the cover member 31a is described. The cover member 31a includes a surface fastener 38a. Specifically, the surface fastener 38a is provided on the flat plate portion 35a included in the wall portion. In the present embodiment, the surface fastener 38a is provided on one side of the thickness direction of the flat plate portion 35a. In this case, the surface fastener 38a is provided on the guide rail lower surface 12b side of the guide rail 11a. In addition, the surface fastener 38a is provided in a manner surrounding the opening portion 36a. Specifically, the surface fastener 38a is provided over the entire area of ​​the flat plate portion 35a. When installing the cover member 31a, the surface fastener 38a of the cover member 31a is installed on the surface fastener (not shown) also provided at the setting position to install the cover member 31a. In this way, the cover member 31a is fixed at a specified setting position. In addition, since the installation is performed using the surface fastener 38a, it is a structure that can be easily loaded and unloaded.

[0075] In addition, according to the direct-acting guide unit 10a of the present disclosure, the guide rail 11a and the sliding member 21a are accommodated in the space 37a formed by the upper wall portion 32a, the front side wall portion 33a, the rear side wall portion 33b, the right side wall portion 34a and the left side wall portion 34b, so that the cover member 31a covers the guide rail 11a and the sliding member 21a. Moreover, when the sliding member 21a is in motion, that is, when the sliding member 21a performs linear reciprocating motion, the first right element 42a and the first left element 43a included in the first fastener 41a are separated and engaged, so that the guide rail 11a and the sliding member 21a can be kept covered by the cover member 31a, and the sliding member 21a can be slid. Therefore, the dustproofness and waterproofness of the sliding member 21a during sliding can be improved. In addition, since the surface fastener 38a is provided on the flat plate portion 35a, when the cover member 31a is installed, screws or adhesives are not required, and positioning is easy. In addition, since the surface fixation is performed by the surface fastener 38a, it is not easy to generate a gap, and the high sealing performance in the space 37a containing the guide rail 11a and the sliding member 21a can be maintained. Therefore, according to such a linear guide unit 10a, the high sealing performance of the cover member 31a can be ensured and the installation performance can be improved. In addition, since the installation performed by the surface fastener 38a can easily adjust the position, the convenience can be improved.

[0076] In this embodiment, the surface fastener 38a is provided on one side of the thickness direction of the flat plate portion 35a. Therefore, when the cover member 31a is installed using the flat plate portion 35a, the surface fastener 38a can be appropriately installed at the installation position. Therefore, the installation performance can be improved.

[0077] In this embodiment, the surface fastener 38a is provided so as to surround the opening 36a. Therefore, the sealing performance in the cover member 31a can be further improved. Therefore, the high sealing performance can be maintained more reliably.

[0078] In addition, according to the above-mentioned direct-acting guide unit 10a, when viewed from the upper surface 12a of the guide rail in a direction perpendicular to the long side direction, since the first opening area 46a generated when the first right element 42a and the first left element 43a are separated from each other is arranged at a position away from the guide rail 11a, foreign matter such as dust on the cover member 31a enters the inside of the cover member 31a when the first right element 42a and the first left element 43a are separated, the possibility of foreign matter reaching the guide rail 11a can also be reduced. Therefore, the possibility of foreign matter adhering to the first track surface 15a, 15b can be reduced, and in the track path 18a, 18b composed of the first track surface 15a, 15b and the second track surface 17a, 17b, the foreign matter can be prevented from hindering the smooth sliding of the sliding member 21a. Therefore, according to such a direct-acting guide unit 10a, the smooth movement of the sliding member 21a can be ensured.

[0079] In addition, according to the above-mentioned direct-acting guide unit 10a, the second zipper 41b of the above-mentioned structure is included. Therefore, since the second opening area 46b is arranged at a position away from the guide rail 11a, even if foreign matter enters from the second opening area 46b, the possibility of foreign matter adhering to the first track surface 15a, 15b can be reduced, and the smooth movement of the sliding member 21a can be ensured. In addition, since the movable member 51a can be supported by both the first supporting member 57a, 58a and the second supporting member 57b, 58b, the load loaded on the movable member 51a can be dispersedly borne. Therefore, the load resistance can be improved.

[0080] In this embodiment, the area between the first left element 43a and the second right element 42b is made of an elastic body, so that the bending or bulging of the area between the first left element 43a and the second right element 42b during the separation and engagement of the sliding member 21a can be suppressed, and the possibility of interference between the cover member 31a, the guide rail 11a, and the sliding member 21a can be reduced.

[0081] In the present embodiment, a shielding member 61a is included, which is mounted on the guide rail side surface 14a, and is arranged between the guide rail side surface 14a and the first opening area 46a of the first zipper 41a in a direction perpendicular to the long side direction and when viewed from the guide rail upper surface 12a side. In addition, a shielding member 61b is included, which is mounted on the guide rail side surface 14b, and is arranged between the guide rail side surface 14b and the second opening area 46b of the second zipper 41b in a direction perpendicular to the long side direction and when viewed from the guide rail upper surface 12a side. Therefore, in the area not covered by the cover member 31a, the possibility of foreign matter intrusion from the guide rail side surfaces 14a, 14b can be reduced by using the shielding members 61a and 61b. Therefore, the smooth movement of the sliding member 21a can be further ensured.

[0082] (Implementation Method 2)

[0083] Next, another embodiment, that is, Embodiment 2 will be described. Fig.10 This is a schematic perspective view of a linear guide unit in Embodiment 2 of the present disclosure.

[0084] Reference Fig.10 In the direct-acting guide unit 10b in the second embodiment, the upper wall portion 32a, the front side wall portion 33a, the rear side wall portion 33b, the right side wall portion 34a and the left side wall portion 34b included in the cover member 31b are configured so that the interior can be visually confirmed from the outside. Specifically, the upper wall portion 32a, the front side wall portion 33a, the rear side wall portion 33b, the right side wall portion 34a and the left side wall portion 34b included in the cover member 31b are formed of a transparent resin. In this way, it is easy to grasp the state of the interior of the cover member 31b, and it is possible to improve the maintainability. In addition, with regard to the structure that can visually confirm the interior, it is not necessary to set the upper wall portion 32a, the front side wall portion 33a, the rear side wall portion 33b, the right side wall portion 34a and the left side wall portion 34b as a transparent structure. For example, a transparent structure can also be set in the area equivalent to the parts 39a, 39b in the above-mentioned first embodiment.

[0085] (Implementation method 3)

[0086] Next, another embodiment, that is, Embodiment 3 will be described. Fig.11 This is a schematic perspective view showing a part of a linear motion guide unit in Embodiment 3 of the present disclosure. Fig.11 Illustration of the moving member is omitted.

[0087] Reference Fig.11 In the direct-acting guide unit 10c in the third embodiment, the first front sliding member 44a and the first rear sliding member 45a are provided with sealing members 64a and 65a for cleaning the upper part of the area where the first right element 42a and the first left element 43a are meshed. In addition, the second front sliding member 44b and the second rear sliding member 45b are provided with sealing members 64b and 65b for cleaning the upper part of the area where the second right element 42b and the second left element 43b are meshed. In this way, the sealing members 64a and 65a move when the first front sliding member 44a and the first rear sliding member 45a move, and the sealing members 64b and 65b move when the second front sliding member 44b and the second rear sliding member 45b move. Therefore, the possibility of foreign matter accumulated on the upper part of the cover member 31a entering the inside of the cover member 31a can be reduced by using the sealing members 64a, 65a, 64b, and 65b. Therefore, the possibility of foreign matter entering the rail paths 18a and 18b can be reduced, and the smooth operation of the sliding member 21a can be further ensured.

[0088] (Implementation 4)

[0089] Next, Embodiment 4 which is still another embodiment will be described. Fig.12 and Fig.13 This is a schematic perspective view showing a part of a linear motion guide unit in Embodiment 4 of the present disclosure. Fig.12 and Fig.13 These are pictures when viewed from different angles. Fig.14 yes Fig.12 A schematic top view of the linear guide unit shown. Fig.15 yes Fig.12 A schematic bottom view of the linear guide unit shown. Fig.16 yes Fig.12 A schematic front view of the linear guide unit shown. Fig.17 is Figure 2 A schematic cross-sectional view when cut at the section shown by XVII-XVII in FIG. Fig.18 is Fig.12 The illustrated linear motion guide unit is a schematic perspective view in which a portion of the cover member is omitted. Fig.19 is Fig.12 The illustrated linear guide unit is a schematic perspective view in which the moving member is omitted from illustration. Fig. 20 is Fig.12 The linear guide unit shown is a schematic perspective view in which a portion of the moving member and the cover member are omitted. The linear guide unit of the fourth embodiment is different from the linear guide unit of the first embodiment in terms of the number of fasteners and the structure of the flat plate portion.

[0090] Reference Figures 12 to 20The direct-acting guide unit 10d in Embodiment 4 includes a guide rail 11a, a sliding member 21a, a ball 20a as a rolling body, a cover member 31d, a movable member 51d and a connecting member (not shown). The guide rail 11a includes a guide rail upper surface 12a, a guide rail lower surface 12b and guide rail side surfaces 14a and 14b extending in the long side direction respectively. First track surfaces 15a and 15b are provided on the guide rail side surfaces 14a and 14b. Although the number of through holes 16 and the shapes of the first track surfaces 15a and 15b are slightly different, the basic shape of the guide rail 11a is the same as that of Embodiment 1. The sliding member 21a is mounted on the guide rail 11a so as to be relatively movably. The sliding member 21a includes a sliding member lower surface 24a opposite to the guide rail upper surface 12a and second track surfaces 17a and 17b opposite to the first track surfaces 15a and 15b. The sliding member 21a includes a housing 25a, a front end cover 26a, a rear end cover 26b, and an intermediate member 27a. The basic structure of the sliding member 21a is also the same as that of the first embodiment. The ball 20a rolls on the track paths 18a and 18b formed by the first track surfaces 15a and 15b and the second track surfaces 17a and 17b. In addition, the intermediate member 27a included in the sliding member 21a is plate-shaped and is provided with a receiving recess 29d for receiving the positioning protrusion 54d provided on the moving member 51d described later.

[0091] The cover member 31d covers the guide rail 11a and the sliding member 21a. The cover member 31d includes a zipper 41d extending in the longitudinal direction. The cover member 31d includes: a flat plate portion 35d having an opening portion 36d at the center; a front side wall portion 33a, a rear side wall portion 33e, a right side wall portion 34d, and a left side wall portion 34e provided upright from the flat plate portion 35d; and an upper wall portion 32d connected to the front side wall portion 33a, the rear side wall portion 33e, the right side wall portion 34d, and the left side wall portion 34e, respectively. A zipper 41d is provided on the upper wall portion 32d in a manner extending in the longitudinal direction. The guide rail 11a and the sliding member 21a are accommodated in a space 37d provided in the cover member 31d. In the present embodiment, the flat plate portion 35d included in the cover member 31d is formed by bending the ends of the side walls, i.e., the front side wall 33a, the rear side wall 33e, the right side wall 34d, and the left side wall 34e, in the Z direction inwardly. The cover member 31d is formed in a rectangular parallelepiped shape with an opening 36d provided at a portion corresponding to the lower side of the guide rail 11a.

[0092] The movable member 51d is plate-shaped. The outer shape of the movable member 51d is a rectangle that is long in the long side direction (Y direction) when viewed from the Z direction. The outer shape of the two ends of the long side direction of the movable member 51d is a shape with rounded corners when viewed from the Z direction. The movable member 51d is arranged on the outside of the cover member 31d. Specifically, the movable member 51d is arranged above the upper wall portion 32d of the cover member 31d. In addition, the movable member 51a is arranged on the zipper 41d. A plurality of mounting holes 52d, which are two in this embodiment, are provided on the movable member 51d, and a transport member (not shown) that is transported together with the movable member 51d is installed by using the mounting holes 52d. The movable member 51d moves together with the sliding member 21a. A plurality of connecting holes 53d are provided on the movable member 51d, and the connecting holes 53d are used to connect with the sliding member 21a, specifically, the intermediate member 27a included in the sliding member 21a. In this embodiment, two connection holes 53d are provided at intervals in the Y direction. In addition, a positioning protrusion 54d protruding from the lower surface located on the guide rail 11a side is provided on the moving member 51a. The positioning protrusion 54d is shaped to be received by the receiving recess 29d provided in the intermediate member 27a. The moving member 51a is connected and fixed to the intermediate member 27a included in the sliding member 21a through the connection hole 53a by a connecting member (not shown).

[0093] The zipper 41d is the same as the first zipper 41a or the second zipper 41b in the first embodiment, and includes a right element 42d, a left element 43d, a front slide 44d, and a rear slide 45d. The right element 42d and the left element 43d extend in the longitudinal direction and are structures that can mesh with each other. The front slide 44d and the rear slide 45d are respectively mounted on the right element 42d and the left element 43d, and are fixed to the sliding member 21a and the moving member 51d. When the sliding member 21a and the moving member 51d move, the front slide 44d and the rear slide 45d separate the right element 42d and the left element 43d from each other as they move in the direction opposite to the side where the other party is located, and mesh the right element 42d and the left element 43d with each other as they move in the direction of the side where the other party is located. The zipper 41d is formed on the belt member 47d, and the belt member 47d formed with the zipper 41d constitutes a part of the upper wall portion 32d of the cover member 31d. In this embodiment, unlike the case of embodiment 1, the zipper 41d is arranged in a row. When viewed from the Z direction, the zipper 41d is arranged at the center of the X direction at the upper wall portion 32d.

[0094] In addition, in the present embodiment, the cover member 31d includes a first spare slider 76d and a second spare slider 77d. The first spare slider 76d and the second spare slider 77d are both mounted on the right element 42d and the left element 43d. The first spare slider 76d is arranged on the front side of the front side slider 44d, that is, on the front side wall portion 33d side. In the present embodiment, it is arranged at the end of the front side of the long side direction of the right element 42d and the left element 43d. By moving the first spare slider 76d in the direction of arrow Y, the right element 42d and the left element 43d are separated. By moving the first spare slider 76d in the direction opposite to arrow Y, the right element 42d and the left element 43d are meshed. The second spare slider 77d is arranged on the rear side of the rear side slider 45d, that is, on the rear side wall portion 33e side. In the present embodiment, it is arranged at the end of the rear side of the long side direction of the right element 42d and the left element 43d. By moving the second standby slider 77d in the direction opposite to the arrow Y, the right element 42d and the left element 43d are separated. By moving the second standby slider 77d in the direction of the arrow Y, the right element 42d and the left element 43d are meshed. By using the first standby slider 76d and the second standby slider 77d, the zipper 41d can be opened and closed. The first standby slider 76d and the second standby slider 77d are usually in a state of closing the zipper 41d, and are effectively used by opening and closing the zipper 41d when maintaining the linear guide unit 10d, such as cleaning the inside of the cover member 31d.

[0095] Here, a surface fastener 38d is provided on the flat plate portion 35d. The surface fastener 38d is provided on one side of the thickness direction of the flat plate portion 35d. In this case, the surface fastener 38d is provided on the lower surface side of the guide rail of the guide rail 11a. In addition, the surface fastener 38d is provided in a manner of surrounding the opening portion 36d. That is, the surface fastener 38d is provided over the entire area of ​​the flat plate portion 35d. When installing the cover member 31d, the surface fastener 38d of the cover member 31d is installed on the surface fastener (not shown) also provided at the setting position to install the cover member 31d. In this way, the cover member 31d is fixed to the specified setting position. In addition, since the installation is performed using the surface fastener 38d, it is a structure that can be easily loaded and unloaded.

[0096] According to the direct-acting guide unit 10d disclosed in the present invention, the guide rail 11a and the sliding member 21a are accommodated in the space 37d formed by the upper wall portion 32d, the front side wall portion 33d, the rear side wall portion 33e, the right side wall portion 34d and the left side wall portion 34e, so that the cover member 31d covers the guide rail 11a and the sliding member 21a. Moreover, when the sliding member 21a is in motion, that is, when the sliding member 21a performs linear reciprocating motion, the right element 42d and the left element 43d included in the zipper 41d are separated and engaged, so that the guide rail 11a and the sliding member 21a can be kept covered by the cover member 31d, and the sliding member 21a can be slid. Therefore, the dustproofness and waterproofness of the sliding member 21a during sliding can be improved. In addition, a surface fastener 38d is provided on the flat plate portion 35d, so that when the cover member 31d is installed, screws or adhesives are not required, and positioning is easy. In addition, since the surface fixation is performed by the surface fastener 38d, it is not easy to generate a gap, and the high sealing performance in the space 37d containing the guide rail 11a and the sliding member 21a can be maintained. Therefore, according to such a linear guide unit 10d, the high sealing performance of the cover member 31d can be ensured and the installation performance can be improved. In addition, since the installation performed by the surface fastener 38d can easily adjust its position, the convenience can be improved.

[0097] (Implementation 5)

[0098] Next, Embodiment 5 which is still another embodiment will be described. Fig.21 It is a schematic perspective view showing a linear motion guide unit in Embodiment 5 of the present disclosure. Fig. 22 is Fig.21 A schematic cross-sectional view when cut along the cross section shown in FIG. XXII-XXII in FIG. The linear motion guide unit of the fifth embodiment is different from that of the fourth embodiment in the structure of the cover member and the like.

[0099] Reference Fig.21 and Fig. 22The linear guide unit 10f in the fifth embodiment includes a guide rail 11a, a sliding member 21a, a ball 20a as a rolling body, a cover member 31f having a zipper 41f, a moving member 51f and a connecting member (not shown). The guide rail 11a includes a guide rail upper surface 12a, a guide rail lower surface 12b and guide rail side surfaces 14a and 14b extending in the longitudinal direction respectively. First track surfaces 15a and 15b are provided on the guide rail side surfaces 14a and 14b respectively. The basic shape of the guide rail 11a is the same as that of the fourth embodiment. The sliding member 21a is mounted on the guide rail 11a so as to be relatively movably. The sliding member 21a includes a sliding member lower surface 24a opposite to the guide rail upper surface 12a and second track surfaces 17a and 17b opposite to the first track surfaces 15a and 15b. The sliding member 21a includes a base portion 22a and a pair of sleeve portions 23a and 23b. In addition, the sliding member 21a includes a housing 25a, a front end cover, a rear end cover and an intermediate member 27a. The basic structure of the sliding member 21a is also the same as that of the embodiment 1. The ball 20a rolls on the track paths 18a and 18b formed by the first track surfaces 15a and 15b and the second track surfaces 17a and 17b. In addition, the intermediate member 27a included in the sliding member 21a is plate-shaped and is provided with a positioning protrusion 29f protruding toward the moving member 51f side.

[0100] The movable member 51f is plate-shaped. The outer shape of the movable member 51f is a rectangle that is long in the long side direction (Y direction) when viewed from the Z direction. The movable member 51f is arranged on the outside of the cover member 31f. Specifically, the movable member 51f is arranged above the upper wall portion 32f of the cover member 31f. In addition, the movable member 51f is arranged on the zipper 41f. A plurality of mounting holes 52f, which are two in the present embodiment, are provided on the movable member 51f, and a transport member (not shown) that is transported together with the movable member 51f is installed by using the mounting holes 52f. The movable member 51f moves together with the sliding member 21a. A plurality of connecting holes (not shown) are provided on the movable member 51f, and the connecting holes are used to connect with the sliding member 21a, specifically, the intermediate member 27a included in the sliding member 21a. In addition, a receiving recess 54f that is recessed from the lower surface located on the guide rail 11a side is provided on the movable member 51f. The receiving recess 54f is shaped to receive the positioning protrusion 29f provided on the intermediate member 27a. The movable member 51f is connected and fixed to the intermediate member 27a included in the sliding member 21a through the connecting hole by using a connecting member (not shown). In addition, the first backup slide member and the second backup slide member are not provided on the zipper 41f as in the fourth embodiment.

[0101] The cover member 31f covers the guide rail 11a and the sliding member 21a. The cover member 31f includes a zipper 41f extending in the longitudinal direction. The cover member 31f includes: a front side wall portion 33f; a rear side wall portion 33g; a right side wall portion 34f; a left side wall portion 34g; and an upper wall portion 32f connected to the front side wall portion 33f, the rear side wall portion 33g, the right side wall portion 34f and the left side wall portion 34g respectively. The zipper 41f includes a right side element 42f, a left side element 43f, a front side sliding member, and a rear side sliding member. The zipper 41f is formed as a belt member 47f, and the belt member 47f formed with the zipper 41f constitutes a part of the upper wall portion 32f of the cover member 31f. In this embodiment, the cover member 31f is a structure that does not include the flat plate portion in Embodiment 4. The guide rail 11a and the sliding member 21a are accommodated in the space 37f provided in the cover member 31f. The cover member 31f is formed in a rectangular parallelepiped shape with an opening 36f provided in a portion corresponding to the lower side of the guide rail 11a.

[0102] In addition, the cover member 31f includes a base plate 81f that is rectangular when viewed from the thickness direction (Z direction) and a pair of mounting plates 82f, 82g mounted on the base plate 81f. The base plate 81f is a shape extending along the long side direction (Y direction) and is configured in a manner to block the opening 36f. The base plate 81f includes a side surface 87f located on one side of the X direction and a side surface 87g located on the other side of the X direction. The length of the long side direction of the base plate 81f is equal to the length of the long side direction of the opening 36f of the cover member 31f. The guide rail 11a is mounted on the base plate 81f. Specifically, the guide rail 11a is fastened by bolts not shown in the figure in a manner that the lower surface 12b of the guide rail is opposite to one side in the thickness direction of the base plate 81f, in this case, to the upper surface 83f of the base plate configured on the side of the space 37f. In this case, a plurality of through holes 16 provided on the guide rail 11a are utilized. The guide rail 11a is attached to the base plate 81f so as to be located at the center in the short-side direction (X direction).

[0103] The mounting plates 82f and 82g are respectively formed by bending a thin plate-like member into a right angle, and are shaped to extend in the long side direction. The mounting plates 82f and 82g are also respectively mounted on the base plate 81f by bolts not shown in the figure. In the present embodiment, the mounting plates 82f and 82g are mounted in a manner that clamps the guide rail 11a in the X direction. The mounting plate 82f includes a first portion 84f parallel to the XY plane and a second portion 85f parallel to the YZ plane. The mounting plate 82f is mounted in a manner that the first portion 84f contacts the upper surface 83f of the base plate, and the second portion 85f stands up in the Z direction in the space 37f. Similarly, the mounting plate 82g includes a first portion 84g parallel to the XY plane and a second portion 85g parallel to the YZ plane, and is mounted in a manner that the first portion 84g contacts the upper surface 83f of the base plate, and the second portion 85g stands up in the Z direction in the space 37f. When the mounting plates 82f and 82g are mounted, one sleeve 23a of the sliding member 21a is disposed between the guide rail 11a and the second portion 85f, and the other sleeve 23b of the sliding member 21a is disposed between the guide rail 11a and the second portion 85g. In addition, the side surface 86f of the second portion 85f is disposed opposite to the inner wall surface 39f of the right side wall portion 34f located on the space 37f side, and the side surface 86g of the second portion 85g is disposed opposite to the inner wall surface 39g of the left side wall portion 34g located on the space 37f side.

[0104] A surface fastener 88f is installed on the side surface 86f of the second part 85f. In addition, a surface fastener 88g is installed on the side surface 86g of the second part 85g. The surface fasteners 88f and 88g are respectively provided in the entire area of ​​the second parts 85f and 85g in the Y direction and the Z direction. The surface fasteners 88f and 88g are provided to the middle of the two side surfaces 87f and 87g in the X direction of the base plate 81f.

[0105] Here, the wall portion of the cover member 31f, specifically the right side wall portion 34f and the left side wall portion 34g, is provided with surface fasteners 38f and 38g. In the present embodiment, the surface fastener 38f is provided on the inner wall surface 39f of the right side wall portion 34f, and the surface fastener 38g is provided on the inner wall surface 39g located on the side of the space 37f in the left side wall portion 34g. That is, the surface fasteners 38f and 38g are different from the cases of embodiments 1 to 4, and are arranged parallel to the YZ plane. The surface fasteners 38f and 38g are arranged in the entire area of ​​the Y direction of the inner wall surfaces 39f and 39g. The surface fasteners 38f and 38g are arranged in the inner wall surfaces 39f and 39g from the end on the side of the opening 36f to the middle of the Z direction. The lengths of the surface fasteners 38f and 38g in the Y direction and the lengths in the Z direction are respectively the same as those of the surface fasteners 88f and 88g.

[0106] The cover member 31f is installed on the base plate 81f and the mounting plates 82f and 82g in such a way that the surface fastener 88f is installed on the surface fastener 38f, and the surface fastener 88g is installed on the surface fastener 38g. That is, the cover member 31f is fixed to the base plate 81f and the mounting plates 82f and 82g by installing the surface fastener 38f and the surface fastener 88f together, and installing the surface fastener 38g and the surface fastener 88g together in the X direction. In this way, the possibility of accumulation of foreign matter such as dust can be reduced for the portion provided with the surface fastener 38f and 38g. Therefore, the possibility of foreign matter entering the cover member 31f can be reduced, and the smooth movement of the sliding member 21a can be further ensured.

[0107] In this case, the opening 36f can be closed by attaching the surface fastener 38f and the surface fastener 88f, and the surface fastener 38g and the surface fastener 88g, respectively. Therefore, the sealing property of the space 37f of the cover member 31f can be further improved, and the smooth sliding of the sliding member 21a can be ensured.

[0108] (Other embodiments)

[0109] Furthermore, in the above-described embodiment, balls are used as rolling elements, but the present invention is not limited to this, and rollers may be used as rolling elements.

[0110] Furthermore, in the above-described embodiment, the structure has one or two rows of fasteners, but the present invention is not limited thereto, and the structure may have three or more rows of fasteners.

[0111] Furthermore, in the above-described embodiment, the surface fastener is provided on the entire area of ​​one side in the thickness direction of the flat plate portion, but the present invention is not limited thereto, and the surface fastener may be provided on a portion of one side in the thickness direction of the flat plate portion.

[0112] In addition, in the above embodiment, at least one of the right element and the left element may include an oil-containing resin provided at the portion meshing with each other. This can promote smooth movement of the right element and the left element and ensure smooth operation of the sliding member.

[0113] It should be understood that the embodiments disclosed this time are illustrative in all aspects and are not restrictive in any aspect. The scope of the present invention is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0114] Description of Reference Numerals

[0115] 10a, 10b, 10c, 10d, 10f: direct-acting guide unit; 11a: guide rail; 12a: upper surface of guide rail; 12b: lower surface of guide rail; 13a: front surface of guide rail; 13b: rear surface of guide rail; 14a, 14b: side surface of guide rail; 15a, 15b: first track surface; 16: through hole; 17a, 17b: second track surface; 18a, 18b: track path; 19a, 19b: return path; 20a: ball bearing; 21a: sliding member; 22a: base; 23a, 23b: sleeve; 24a: lower surface of sliding member; 25a: housing; 26a: front end cover; 26b: rear end cover; 27a: intermediate member; 29a, 29b, 29f, 54d: positioning protrusion ; 29d, 54a, 54b, 54f: receiving recess; 31a, 31b, 31d, 31f: cover member; 32a, 32d, 32f: upper wall; 33a, 33d, 33f: front side wall; 33b, 33e, 33g: rear side wall; 34a, 34d, 34f: right side wall; 34b, 34e, 34g: left side wall; 35a, 35d: flat plate; 36a, 36d, 36f: opening; 37a, 37d, 37f: space; 38a, 38d, 38f, 38g, 88f, 88g: surface fastener; 39a, 39b: part; 39f, 39g: inner wall surface; 41a: zipper (first zipper); 41b: zipper (second zipper); 4 1d, 41f: zipper; 42a: right side element (first right side element); 42b: right side element (second right side element); 42d, 42f: right side element; 43a: left side element (first left side element); 43b: left side element (second left side element); 43d, 43f: left side element; 44a: front side sliding member (first front side sliding member); 44b: front side sliding member (second front side sliding member); 44d: front side sliding member; 45a: rear side sliding member (first rear side sliding member); 45b: rear side sliding member (second rear side sliding member); 45d: rear side sliding member; 46a: opening area (first opening area); 46b: opening area (second opening area); 47a: belt member (first belt member );47b: belt member (second belt member); 47d, 47f: belt member; 51a, 51d, 51f: moving member; 52a, 52d, 52f: mounting hole; 53a, 53d: connecting hole; 56a: connecting member; 57a, 58a: first supporting member; 57b, 58b: second supporting member; 61a, 61b: shielding member; 64a, 64b, 65a, 65b: sealing member; 76d: first spare sliding member; 77d: second spare sliding member; 81f: base plate; 82f, 82g: mounting plate; 83f: upper surface of base plate; 84f, 84g: first part; 85f, 85g: second part; 86f, 86g, 87f, 87g: side surface.

Claims

1. A cover member, wherein: It includes a zipper extending along the long side, covering the mechanical element parts, The cover member includes a wall portion, the zipper is provided on the wall portion, and the wall portion forms a space for accommodating the mechanical element component. The zipper comprises: a right side element extending along the long side direction; A left side element, extending along the right side element in the direction of the long side, and capable of engaging with the right side element; A front sliding member mounted on the right element and the left element; and a rear sliding member, mounted on the right element and the left element, and arranged to be separated from the front sliding member in the long side direction; When the front sliding member and the rear sliding member move in the long side direction, the front sliding member and the rear sliding member separate the right element and the left element from each other as they move in the direction opposite to the other side, and mesh the right element and the left element with each other as they move in the direction toward the other side. The wall portion is provided with a surface fastener.

2. A linear guide unit, wherein: have: The guide rail comprises a guide rail upper surface and a guide rail side surface respectively extending in the long side direction, wherein a first track surface is arranged on the guide rail side surface; A sliding member is relatively movably mounted on the guide rail, comprising a sliding member lower surface opposite to the guide rail upper surface and a second track surface opposite to the first track surface; A plurality of rolling elements rolling on a track formed by the first track surface and the second track surface; a cover member, comprising a zipper extending along the long side direction, covering the guide rail and the sliding member; a moving member, arranged outside the cover member and moving together with the sliding member; as well as A connecting member connecting the sliding member and the moving member; The cover member includes a wall portion, the zipper is provided on the wall portion, and the wall portion forms a space for accommodating the guide rail and the sliding member. The zipper comprises: a right side element extending along the long side direction; A left side element, extending along the right side element in the direction of the long side, and capable of engaging with the right side element; A front sliding member, mounted on the right element and the left element, and fixed to the sliding member and the moving member; and A rear sliding member, mounted on the right element and the left element, arranged separately from the front sliding member in the long side direction, and fixed to the sliding member and the moving member; When the sliding member and the moving member move, the front sliding member and the rear sliding member move in the opposite direction to the other side to separate the right element and the left element from each other, and move in the direction to the other side to engage the right element and the left element with each other. The connecting member includes a supporting member, the supporting member being arranged between the front sliding member and the rear sliding member in the longitudinal direction and supporting the moving member. The wall portion is provided with a surface fastener.

3. The linear guide unit according to claim 2, wherein: The wall portion includes a flat plate portion, The surface fastener is arranged on one side of the flat plate portion in the thickness direction.

4. The linear guide unit according to claim 2 or 3, wherein: The wall portion is provided with an opening portion connected to the space, The surface fastener is provided so as to surround the opening.

5. The linear guide unit according to claim 2 or 3, wherein: The wall portion comprises: An upper wall portion provided with the zipper; and A side wall portion extending across the upper wall portion; The surface fastener is installed on the side wall portion.

6. The linear guide unit according to claim 2 or 3, wherein: At least a portion of the cover member includes a structure in which a plurality of resin materials having different strengths are laminated.

7. The linear guide unit according to claim 2 or 3, wherein: At least a portion of the cover member is configured so that the inside can be visually confirmed from the outside.

8. The linear guide unit according to claim 2 or 3, wherein: A sealing member is provided on at least one of the front slider and the rear slider, and the sealing member cleans an upper portion of a region where the right element and the left element mesh.

9. The linear guide unit according to claim 2 or 3, wherein: The wall portion comprises: An upper wall portion provided with the zipper; and A side wall portion extending across the upper wall portion; A portion where the upper wall portion and the side wall portion are connected is formed of a curved surface.

10. The linear guide unit according to claim 2 or 3, wherein: At least one of the right element and the left element includes an oil-containing resin provided on a portion meshing with each other.

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