JP2014176928A - Transfer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transfer device capable of suppressing invasion of dust, foreign substance, or the like into the interior.SOLUTION: A transfer device includes a slider part 20, rollers 30a-30d, a pair of side walls 40A, 40B rotatably supporting the rollers 30a-30d, and a cover member 50 containing a first cover member 51 and a second cover member 52 interlocked with the slider part 20 and bridged to the roller 30a-30d. The cover member 50 is formed annularly as both end parts 51b, 52b in X direction are folded back respectively by the rollers 30a-30d so as to be connected to the other main surface 12 side of a base part 10. The cover member 50 is arranged so as to contact to the pair of side walls 40A, 40B.

Description

  The present invention relates to a mobile device.

  Conventionally applied to machines in various technical fields such as machine tools, semiconductor manufacturing equipment, transport equipment, inspection equipment, measuring instruments, processing machines, assembly machines, industrial robots, etc., and a slider part that can slide along one direction There is known a mobile device comprising: There are various types of moving devices. For example, there are systems that are driven by an actuator such as an electromagnetic attractive force, an electric motor, or a fluid pressure cylinder.

  By the way, in this kind of moving device, there is a possibility that dust, foreign matter or the like enters the inside of the actuator, thereby preventing smooth movement of the slider portion or damaging the actuator. Accordingly, a cover member may be provided so as to cover the actuator in order to prevent dust and foreign matter from entering the inside of the actuator.

  For example, in Patent Document 1, a drive pulley that is connected to a drive motor provided in a frame, a driven pulley that is rotatably attached, and a drive unit that is configured by a timing belt spanned between both pulleys; A moving device is described which is composed of a movable part fixed to a timing belt and reciprocating along a rail by a guide unit, and an upper cover that covers them, and a support base that supports the upper cover is provided in the frame. ing. According to Patent Document 1, a cover support base is provided in a U-shaped frame, and the upper cover is supported by the cover support base, thereby preventing the upper cover from being bent by its own weight. .

JP 2001-254797 A

  However, in the prior art, since the slider portion is disposed between the frame and the cover, the slider portion can slide between the frame and the cover along the longitudinal direction of the frame. In addition, a gap corresponding to the thickness of the slider is provided. For this reason, there is a possibility that dust, foreign matter, etc. may enter the inside of the moving device from the gap between the frame and the cover. Therefore, there is room for further improvement in terms of suppressing the entry of dust and foreign matter into the mobile device.

  Therefore, an object of the present invention is to provide a moving device that can suppress dust, foreign matter, and the like from entering the inside.

  In order to solve the above-described problems, a moving device according to the present invention includes a slider portion that is slidable along a first direction on one main surface of a base portion, and a right angle with the first direction on the one main surface. And at least a pair of rollers disposed on both outer sides of the moving range of the slider portion in the first direction, and perpendicular to the first direction and the second direction. A pair of side walls which are erected along a third direction and are arranged on both outer sides in the second direction of the base portion and the pair of rollers, and which support the pair of rollers rotatably; and the slider portion A cover member that is fixed to the slider portion and interlocked with the slider portion, and spans the pair of rollers. It is formed in an annular shape by being folded back by chromatography La is connected on the other major surface of the base portion to each other, wherein the cover member is characterized in that it is arranged so as to be in contact with the pair of side walls.

According to the present invention, there is provided at least a pair of rollers disposed on both outer sides of the moving range of the slider portion, and a cover member fixed to the slider portion and interlocked with the slider portion, and spanned between the pair of rollers. Therefore, the moving range of the slider portion can be covered with the cover member. Furthermore, since the cover member is disposed so as to be in contact with the pair of side walls, the generation of a gap between the cover member and the pair of side walls can be suppressed. Therefore, it is possible to suppress dust and foreign matter from entering the moving device.
Further, since the cover member is formed in an annular shape by folding both ends in the first direction by a pair of rollers and connecting them to each other on the other main surface side of the base portion, When interlocking, it can go around in a state of being stretched over a pair of rollers. Thereby, since the cover member can be interlocked with the slider portion within a predetermined range in the first direction when the slider portion slides, the moving device can be installed outside the moving device without securing a moving space for the cover member. Further, the cover member is folded back by a pair of rollers, so that a predetermined tension is generated in the cover member. Thereby, even if the cover member moves at a high speed, the cover member can be interlocked with the slider unit without causing bending or lifting. Therefore, it is possible to suppress the intrusion of dust, foreign matter, and the like inside the moving device while downsizing the moving device.

  Moreover, the said both ends of the said cover member are mutually connected through the joint member, It is characterized by the above-mentioned.

  According to the present invention, both ends of the cover member can be firmly connected by using the joint member. Moreover, since the annular cover member can be formed into a strip shape simply by releasing the connection between the end of the cover member and the joint member, the cover member can be easily removed from the moving device. Therefore, it is possible to provide a moving device with excellent maintainability.

  Moreover, the base part which supports the said base part is provided in the other main surface side of the said base part, The said joint member is along the said 1st direction in the said base part in the position corresponding to the said joint member. A through hole is formed, and an inner surface of the through hole is formed of a resin material.

  According to the present invention, the base portion of the moving device can be firmly supported by providing the pedestal portion. In addition, the pedestal is formed with a through-hole through which the joint member can be inserted along the first direction at a position corresponding to the joint member. The joint member can reciprocate in the hole. Therefore, even if it is a case where a base part is provided, the both ends of a cover member can be firmly connected with a joint member. Furthermore, since the inner surface of the through-hole is formed of a resin material, the joint member does not interfere with the pedestal even when it interferes with the inner surface of the through-hole when the joint member reciprocates in the through-hole. Can suppress damage.

  Further, both edge portions in the second direction of the cover member are respectively disposed flush with the outer surface in the second direction of the pair of side walls or on the outer side of the outer surface, and the inner periphery of the cover member The surface is disposed so as to be in contact with the pair of side walls.

  According to the present invention, the inner peripheral surface of the cover member is disposed so as to contact the pair of side walls, and therefore, compared with the case where both edges of the cover member are disposed so as to contact the pair of side walls, It is possible to prevent dust and foreign matter from entering the moving device from three directions.

  The pair of rollers are supported by the pair of side walls at positions corresponding to the corners of the pair of side walls when viewed from the second direction, and the corners of the pair of side walls are It is characterized by chamfering along the outer peripheral surface of the roller.

  According to the present invention, since the corners of the pair of side walls are chamfered along the outer peripheral surface of the pair of rollers, the inner peripheral surface of the cover member and the pair of side walls also in the vicinity of the corners of the pair of side walls. It is possible to suppress the occurrence of a gap between the cover member and the inner peripheral surface of the cover member so as to be in contact with the pair of side walls. Therefore, it is possible to suppress the entry of dust or foreign matter into the inside of the moving device even in the vicinity of the corners of the pair of side walls.

  Further, the cover member is divided at a position corresponding to the slider portion and is connected via the slider portion.

  According to the present invention, the annular cover member can be formed into a belt shape simply by releasing the connection between the slider portion and the divided cover member. Thereby, since a cover member can be easily removed from a moving apparatus, the moving apparatus excellent in maintainability can be provided.

In addition, the slider portion is characterized by sliding by magnetic force.
According to the present invention, when the slider portion slides due to the magnetic force, it is possible to prevent the dust or foreign matter from entering the moving device even if the magnetic force attracts dust or the like. Therefore, the present invention is suitable for a moving device that employs a linear motor as an actuator for driving the slider portion.

According to the present invention, there is provided at least a pair of rollers disposed on both outer sides of the moving range of the slider portion, and a cover member fixed to the slider portion and interlocked with the slider portion, and spanned between the pair of rollers. Therefore, the moving range of the slider portion can be covered with the cover member. Furthermore, since the cover member is disposed so as to be in contact with the pair of side walls, the generation of a gap between the cover member and the pair of side walls can be suppressed. Therefore, it is possible to suppress dust and foreign matter from entering the moving device.
Further, since the cover member is formed in an annular shape by folding both ends in the first direction by a pair of rollers and connecting them to each other on the other main surface side of the base portion, When interlocking, it can go around in a state of being stretched over a pair of rollers. Thereby, since the cover member can be interlocked with the slider portion within a predetermined range in the first direction when the slider portion slides, the moving device can be installed outside the moving device without securing a moving space for the cover member. Further, the cover member is folded back by a pair of rollers, so that a predetermined tension is generated in the cover member. Thereby, even if the cover member moves at a high speed, the cover member can be interlocked with the slider unit without causing bending or lifting. Therefore, it is possible to suppress the intrusion of dust, foreign matter, and the like inside the moving device while downsizing the moving device.

It is a perspective view of the moving device concerning an embodiment. It is a side view of a moving apparatus. It is sectional drawing along the AA line of FIG. It is explanatory drawing when a slider part moves. It is a front view of the moving device concerning the modification of an embodiment. It is a side view of the moving device concerning the modification of an embodiment.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view of a moving apparatus 1 according to the embodiment.
As shown in FIG. 1, the moving device 1 includes a base portion 10, a slider portion 20, a plurality of rollers 30 (30 a to 30 d), a pair of side walls 40 (40 </ b> A and 40 </ b> B), a cover member 50, and a pedestal. Part 60. In FIG. 1, for easy understanding, one side wall 40 </ b> B arranged on the right side of the drawing is illustrated by a two-dot chain line. Below, each component of the moving apparatus 1 is demonstrated in detail.

The base portion 10 is a plate-like member extending in the first direction in plan view, and is formed of a metal material such as stainless steel, aluminum, or iron. On the one main surface 11 of the base portion 10, for example, permanent magnets (not shown) are provided along the first direction, and N poles and S poles are alternately arranged along the first direction. Has been. The slider unit 20 described later slides on the one main surface 11 of the base unit 10 in the first direction.
In the following description, the first direction in which the slider unit 20 moves is the X direction, one side is the + X side, and the other side is the -X side. In addition, on one main surface 11 of the base portion 10, the direction orthogonal to the X direction is the Y direction (corresponding to the “second direction” in the claims), one side is the + Y side, and the other side is the −Y side. And The direction orthogonal to the X direction and the Y direction is the Z direction (corresponding to the “third direction” in the claims), the one main surface 11 side is the + Z side, and the other main surface opposite to the one main surface 11 The 12 side is defined as the -Z side. Below, it demonstrates using the orthogonal coordinate system of XYZ. Further, the Z direction corresponds to the vertical direction, the + Z side corresponds to the upper side in the vertical direction, the −Z side corresponds to the lower side in the vertical direction, and shows the state where the moving device 1 is placed on the floor surface. ing.

  Stopper members 13 are provided at both ends of the base portion 10 in the X direction. Each of the stopper members 13 is formed in a plate shape by a metal material such as stainless steel, aluminum, iron, etc., for example, similarly to the base portion 10, and is disposed in parallel with the YZ plane and extends along the Z direction. On the other hand, it is provided so as to protrude from the main surface 11.

  The slider portion 20 is a member that slides in the X direction on the one main surface 11 of the base portion 10 and is formed of a metal material such as stainless steel, aluminum, or iron. The slider portion 20 is formed by a rectangular parallelepiped base portion 21 and a placement portion 25 provided on the + Z side of the base portion 21.

The height of the base portion 21 in the Z direction is higher than the protruding height of the stopper member 13 with respect to the one main surface 11. Further, the width of the base portion 21 in the Y direction is equal to the width of the base portion 10 in the Y direction.
A plurality of electromagnets (not shown) are provided on the −Z side surface 22 of the base portion 21 in the slider portion 20. A plurality of electromagnets are arranged along the X direction, and can be switched between an N pole and an S pole by exciting each. Between the electromagnet provided on the −Z side surface 22 of the base portion 21 and the permanent magnet provided on the one main surface 11 of the base portion 10, the N pole and the S pole of the electromagnet are switched by a predetermined excitation sequence. Thus, a suction force and a repulsive force along the X direction are generated. Thereby, the slider part 20 can be slidably moved along the X direction between a pair of stopper members 13 provided at both ends in the X direction of the base part 10.
Between the pair of stopper members 13 is a movement range of the slider portion 20. The sliding movement of the slider portion 20 on the + X side and the −X side is restricted by the base portion 21 coming into contact with the stopper member 13. Thus, the slider part 20 and the base part 10 of the moving device 1 constitute a so-called linear motor.

  The mounting unit 25 is formed in, for example, a plate shape, and can mount a moving object such as a machine tool (not shown) that is slid by the moving device 1, a transported object, an assembly machine, or an industrial robot. ing. The width in the Y direction of the mounting portion 25 is wider than the width in the Y direction of the base portion 21, and both end portions in the Y direction of the mounting portion 25 are outside the both end portions in the Y direction of the base portion 21. Has been placed. The length in the X direction and the width in the Y direction of the placement unit 25 are appropriately set according to the size of the moving object placed on the placement unit 25.

  The roller 30 is formed in a cylindrical shape having a central axis C along the Y direction, and is disposed on both outer sides of the movement range of the slider portion 20 in the X direction. The roller 30 of the present embodiment is provided with a pair of rollers 30 a and 30 b on the outer side in the X direction with respect to the stopper member 13 in the base portion 10 and on the + Z side with respect to the base portion 10. A pair of rollers 30c and 30d are provided on the −Z side. That is, in this embodiment, two pairs (four) of rollers 30 (30a to 30d) are provided. Each roller 30a-30d arrange | positioned in this way is rotatably supported by a below-mentioned pair of side wall.

  The bottom plate 5 is a plate-like member formed of a metal material such as stainless steel, aluminum, or iron, for example, in a rectangular shape that is long in the X direction when viewed from the Z direction. Both end portions in the X direction of the bottom plate 5 are positioned slightly outside the rollers 30a to 30d disposed on both sides in the X direction. The width in the Y direction of the bottom plate 5 is wider than the length in the Y direction of the rollers 30a to 30d.

A side wall 40A on the −Y side and a side wall 40B on the + Y side are erected along the Z direction from both side edges of the bottom plate 5 in the Y direction. Each of the pair of side walls 40A and 40B is a plate-like member that is formed of a metal material such as stainless steel, aluminum, or iron, for example, and has a long rectangular shape in the X direction when viewed from the Y direction.
The −Y side wall 40A is arranged on the −Y side from the base part 10 and the rollers 30a to 30d, and the + Y side wall 40B is arranged on the + Y side from the base part 10 and the rollers 30a to 30d. Yes. The length of the side walls 40A, 40B in the X direction is equal to the length of the bottom plate 5 in the X direction. Further, the height in the Z direction of the side walls 40A, 40B is equal to the separation distance from the + Z side surface of the bottom plate 5 to the + Z side surface of the mounting portion 25.

  The pair of side walls 40A and 40B rotatably support the rollers 30a to 30d from both outer sides in the Y direction. More specifically, between the pair of side walls 40A and 40B, the shaft member 31 (31a to 31d) extends along the Y direction at positions corresponding to the four corners 43a to 43d of the side walls 40A and 40B. It is laid over. The pair of side walls 40A and 40B support the rollers 30a to 30d pivotally supported by the shaft members 31a to 31d so as to be rotatable around the central axis C.

The cover member 50 is a cloth member whose main component is, for example, polyester or nylon, and is formed in a strip shape extending along the X direction.
The cover member 50 of this embodiment is divided into a first cover member 51 disposed on the −X side with the slider portion 20 interposed therebetween and a second cover member 52 disposed on the + X side with the slider portion 20 interposed therebetween. ing. The first cover member 51 and the second cover member 52 are formed to have the same length and width, respectively.

The one end portion 51a of the first cover member 51 and the one end portion 52a of the second cover member 52 are respectively connected to the −X side surface and the + X side surface of the mounting portion 25 in the slider portion 20 by, for example, a connecting metal 55 formed in an L shape. It is connected to. Thereby, the first cover member 51 and the second cover member 52 are connected via the slider portion 20. Further, the cover member 50 (the first cover member 51 and the second cover member 52) is fixed to the slider portion 20 and can be interlocked in response to the sliding movement of the slider portion 20 in the X direction.
The cover member 50 is bridged between a pair of rollers 30a and 30b arranged on the + Z side among the rollers 30a to 30d. Then, both end portions of the cover member 50 are folded back by a pair of rollers 30c and 30d disposed on the −Z side, and are disposed on the other main surface 12 side of the base portion 10.

Specifically, the first cover member 51 on the −X side includes a pair of rollers 30a and 30b in which the other end portion 51b opposite to the one end portion 51a connected to the slider portion 20 is disposed on the + Z side. Of these, the roller 30a on the −X side is stretched over. Further, the other end portion 51b of the first cover member 51 is folded back toward the + X side by the -X side roller 30c of the pair of rollers 30c and 30d arranged on the -Z side. Thereby, the other end portion 51 b of the first cover member 51 is disposed on the other main surface 12 side of the base portion 10 and on the + Z side surface of the bottom plate 5.
Further, the second cover member 52 on the + X side has the other end portion 52b opposite to the one end portion 52a connected to the slider portion 20 on the + X side of the pair of rollers 30a and 30b arranged on the + Z side. It is stretched over the roller 30b. Furthermore, the other end 52b of the second cover member 52 is folded back toward the -X side by the + X side roller 30d of the pair of rollers 30c and 30d arranged on the -Z side. Thereby, the other end portion 52 b of the second cover member 52 is disposed on the other main surface 12 side of the base portion 10 and on the + Z side surface of the bottom plate 5.

  The -Y side edge 51c of the first cover member 51 and the -Y side edge 52c of the second cover member 52 are arranged so as to be in contact with the + Y side surface 41a of the side wall 40A on the -Y side. Further, the + Y side edge 51d of the first cover member 51 and the + Y side edge 52d of the second cover member 52 are arranged so as to be in contact with the −Y side surface 41b of the side wall 40B on the + Y side, respectively. That is, both edge portions (−Y side edge portions 51c and 52c and + Y side edge portions 51d and 52d) in the Y direction of the cover member 50 are disposed so as to contact the pair of side walls 40A and 40B.

FIG. 2 is a side view of the moving device 1 when viewed from the + Y side. In FIG. 2, the + Y side wall 40B (see FIG. 1) is not shown for easy understanding.
As shown in FIG. 2, the separation distance K between the other end portion 51 b of the first cover member 51 and the other end portion 52 b of the second cover member 52 is larger than the movement range L when the slider portion 20 slides. It is getting wider.

  The other end portion 51 b of the first cover member 51 and the other end portion 52 b of the second cover member 52 (that is, corresponding to both end portions of the cover member 50) are connected to each other via a joint member 57. The joint member 57 is a member formed of, for example, a metal material such as stainless steel, aluminum, or iron, and is formed in a long plate shape in the X direction. The width of the joint member 57 in the Y direction is narrower than the width of the cover member 50. The length of the joint member 57 along the X direction is longer than the distance between the other end 51 b of the first cover member 51 and the other end 52 b of the second cover member 52. In the present embodiment, two joint members 57 are provided in parallel in the Y direction.

  The −X side end portion 57 a of the joint member 57 is connected to the other end portion 51 b of the first cover member 51 via a connecting fitting 59. The + X side end portion 57 b of the joint member 57 is connected to the other end portion 52 b of the second cover member 52 via a connecting fitting 59. Thus, the first cover member 51 and the second cover member 52 are connected to each other via the joint member 57 in a state having a predetermined tension. The first cover member 51 and the second cover member 52 are connected in an annular shape via the slider portion 20 and the joint member 57.

  On the other main surface 12 side of the base portion 10, a pedestal portion 60 that is disposed on the bottom plate 5 and supports the base portion 10 is provided. The pedestal portion 60 is a rectangular parallelepiped member made of a metal material such as stainless steel, aluminum, or iron, and is disposed at an intermediate portion in the X direction of the bottom plate 5. The size of the pedestal portion 60 is set in accordance with the weight of the moving body placed on the base portion 10 and the slider portion 20 to be supported.

  Here, regarding the positional relationship between the pedestal portion 60 and the first cover member 51, when the slider portion 20 is disposed at an intermediate portion in the X direction of the base portion 10, the other end portion 51 b of the pedestal portion 60 and the first cover member 51. Is longer than the movable distance L1 of the slider portion 20 toward the -X side. Further, regarding the positional relationship between the pedestal portion 60 and the second cover member 52, when the slider portion 20 is disposed at an intermediate portion in the X direction of the base portion 10, the pedestal portion 60 and the other end portion 52 b of the second cover member 52 are The separation distance K2 is longer than the movable distance L2 of the slider portion 20 toward the + X side. Thereby, even if it is a case where the slider part 20 slides to a X direction so that it may mention later, interference with the base part 60, the 1st cover member 51, and the 2nd cover member 52 is prevented.

3 is a cross-sectional view taken along line AA in FIG.
Here, a through hole 63 into which the joint member 57 can be inserted along the X direction is formed in the base portion 60 at a position corresponding to the joint member 57.
As shown in FIG. 3, the through holes 63 are formed at two locations side by side in the Y direction so as to correspond to the joint member 57. The through-hole 63 dents the −Z side surface 62 of the pedestal portion 60 to form a groove portion 64 along the X direction, and a U-shaped guide member 66 along the inner shape of the groove portion 64 in the groove portion 64. It is formed by covering and opening the groove 64 and the guide member 66 with a lid member 68. Thus, a through hole 63 is formed in the groove portion 64 of the pedestal portion 60 so as to be surrounded by the guide member 66 and the lid member 68.

  Here, the guide member 66 and the lid member 68 are formed of a resin material such as polyethylene or polypropylene, for example. As a result, the inner surface 63a of the through hole 63 is formed flat and smooth by the resin material. Therefore, when the joint member 57 reciprocates in the through hole 63 in conjunction with the sliding movement of the slider portion 20 and the cover member 50. Even if it interferes with the inner surface 63a of the through hole 63, damage to the joint member 57 due to friction with the inner surface 63a of the through hole 63 is suppressed.

Next, the operation of the moving device 1 formed as described above will be described.
FIG. 4 is an explanatory diagram when the slider portion 20 moves to the −X side. 4, the illustration of the + Y side wall 40B (see FIG. 1) is omitted as in FIG.
The slider unit 20 of the moving device 1 slides as follows. Hereinafter, a case where the slider unit 20 slides to the −X side will be described.
As shown in FIG. 4, first, an N pole and an S pole of an electromagnet (not shown) provided on the −Z side surface 22 of the slider portion 20 are switched by a predetermined excitation sequence, and the first main surface 11 of the base portion 10 is switched. An attractive force and a repulsive force are generated between the provided permanent magnet (not shown) and the electromagnet provided on the −Z side surface 22 of the slider portion 20 so as to slide the slider portion 20 in the −X direction. .

  Next, the slider portion 20 can move toward the −X side by a suction distance and a repulsive force generated between the −Z side surface 22 of the slider portion 20 and the one main surface 11 of the base portion 10 (FIG. 2). (See). At this time, since the first cover member 51 and the second cover member 52 are fixed to the slider portion 20, the first cover member 51 and the second cover member 52 move around in a state of being stretched over the rollers 30 a to 30 d in conjunction with the slider portion 20. Therefore, not only when the slider portion 20 is stopped, but also when the slider portion 20 slides in the X direction, the movement range L of the slider portion 20 is determined by the cover member 50 (the first cover member 51 and the second cover member 52). Always covered.

  Furthermore, as shown in FIG. 1, both edge portions (−Y side edge portions 51 c and 52 c and + Y side edge portions 51 d and 52 d) of the cover member 50 are disposed so as to contact the pair of side walls 40 </ b> A and 40 </ b> B. . Accordingly, when the slider portion 20 slides, the −Y side edge portions 51c and 52c and the + Y side edge portions 51d and 52d of the cover member 50 move around along the pair of side walls 40A and 40B. Thereby, not only when the slider part 20 stops, but also when the slider part 20 slides in the X direction, the −Y side edge parts 51c and 52c and the + Y side edge parts 51d and 52d of the cover member 50 and the pair of side walls Generation of a gap between 40A and 40B is suppressed.

Further, as shown in FIG. 2, when the slider portion 20 is disposed at the intermediate portion in the X direction of the base portion 10, the separation distance K1 between the base portion 60 and the other end portion 51 b of the first cover member 51 is the slider portion. 20 is longer than the movable distance L1 to the −X side. Therefore, even when the slider portion 20 moves to the −X side by the movable distance L1, the other end portion 51b of the first cover member 51 and the pedestal portion 60 do not interfere with each other. Further, since the first cover member 51 and the second cover member 52 are connected to each other via the joint member 57 in a state having a predetermined tension, the first cover member 51 and the second cover member 52 are not bent. The slider portion 20 can move at a high speed without causing lifting or the like.
Note that the case where the slider portion 20 slides to the + X side is the same as the case where the slider portion 20 slides to the −X side, and thus description thereof is omitted.

According to the present embodiment, the rollers 30a to 30d disposed on both outer sides of the moving range L of the slider unit 20, and the slider unit 20 are fixed to the slider unit 20 and interlocked with the slider unit 20, and are also stretched over the rollers 30a to 30d. Since the cover member 50 (the first cover member 51 and the second cover member 52) is provided, the movement range L of the slider portion 20 can be covered with the cover member 50. Furthermore, since the cover member 50 is disposed so as to be in contact with the pair of side walls 40A and 40B, the generation of a gap between the cover member 50 and the pair of side walls 40A and 40B can be suppressed. Therefore, it is possible to suppress the entry of dust or foreign matter into the moving device 1.
Further, the cover member 50 has both end portions in the X direction (the other end portion 51b of the first cover member 51 and the other end portion 52b of the second cover member 52) folded back by the rollers 30a to 30d, respectively. Since it is formed in an annular shape by being connected on the other main surface 12 side, the cover member 50 can circulate in a state of being stretched over the rollers 30 a to 30 d when interlocking with the slider portion 20. Thereby, since the cover member 50 can be interlocked with the slider portion 20 within a predetermined range in the X direction when the slider portion 20 slides, the moving device without securing the moving space of the cover member 50 outside the moving device 1. 1 can be installed. Furthermore, since it is folded back by the rollers 30 a to 30 d and formed in an annular shape, a predetermined tension is generated in the cover member 50. Thereby, even if the cover part 50 is a case where the slider part 20 moves at high speed, it can interlock | cooperate with the slider part 20, without generating a bending, a lift, etc. FIG. Therefore, it is possible to suppress the intrusion of dust, foreign matter, and the like into the moving device 1 while downsizing the moving device 1.

  Further, by using the joint member 57, both end portions of the cover member 50 (the other end portion 51b of the first cover member 51 and the other end portion 52b of the second cover member 52) can be firmly connected. Moreover, since the annular cover member 50 can be formed into a strip shape simply by releasing the connection between the cover member 50 and the joint member 57, the cover member 50 can be easily removed from the moving device 1. Therefore, the moving apparatus 1 excellent in maintainability can be provided.

  Further, by providing the pedestal portion 60, the base portion 10 of the moving device 1 can be firmly supported. Moreover, since the through hole 63 into which the joint member 57 can be inserted along the X direction is formed in the pedestal portion 60 at a position corresponding to the joint member 57, the slider portion 20 and the cover member 50 can be slid. In conjunction, the joint member 57 can reciprocate in the through hole 63. Therefore, even when the pedestal portion 60 is provided, both end portions of the cover member 50 (the other end portion 51b of the first cover member 51 and the other end portion 52b of the second cover member 52) are strengthened by the joint member 57. Can be linked. Furthermore, since the inner surface 63a of the through hole 63 is formed of a resin material, even when the joint member 57 reciprocates in the through hole 63, even if it interferes with the inner surface 63a of the through hole 63, the joint member It can suppress that 57 is damaged by the friction with the base part 60. FIG.

  Further, since the cover member 50 is divided into the first cover member 51 and the second cover member 52 and connected to the slider portion 20 at a position corresponding to the slider portion 20, the slider portion 20 and the first cover member 51. The ring-shaped cover member 50 can be formed into a belt shape simply by releasing the connection between the slider portion 20 and the second cover member 52. Thereby, since the cover member 50 can be easily removed from the moving apparatus 1, the moving apparatus 1 excellent in maintainability can be provided.

  Further, when the slider unit 20 slides due to the magnetic force, it is possible to prevent the dust or foreign matter from entering the moving device 1 even if the magnetic force attracts dust or foreign matter. Therefore, the actuator for driving the slider unit 20 is suitable for the moving device 1 of this embodiment that employs a linear motor.

(Modification of the embodiment)
FIG. 5 is a front view when the mobile device 1 according to the modification of the embodiment is viewed from the −X side, and FIG. 6 is a view when the mobile device 1 according to the modification of the embodiment is viewed from the + Y side. It is a side view. 5 and 6, the vicinity of the roller 30a located at (+ Z, −Y) among the four rollers 30a to 30d (see FIG. 1) is shown in an enlarged manner.
In the embodiment, both edge portions (−Y side edge portions 51c and 52c and + Y side edge portions 51d and 52d) of the cover member 50 are arranged so as to contact the pair of side walls 40A and 40B (see FIG. 1). .
On the other hand, in the modification of the embodiment, as shown in FIG. 5, the embodiment is that the inner peripheral surface 50a of the cover member 50 is disposed so as to contact the pair of side walls 40A and 40B. Is different. In addition, below, description is abbreviate | omitted about the component similar to embodiment, and only a different part is demonstrated.

  As shown in FIG. 5, the -Y side edge 51c of the cover member 50 (only the first cover member 51 is shown in FIG. 5) is the -Y side surface 41b of the side wall 40A on the -Y side. Equivalent to the “outer surface in two directions”). Further, the + Y side edge portion 51d of the cover member 50 is disposed so as to be flush with the + Y side surface 41a (corresponding to the “outer surface in the second direction” in the claims) of the side wall 40B on the + Y side. Thereby, the inner peripheral surface 50a of the cover member 50 is arrange | positioned so that a pair of side wall 40A, 40B may be contact | connected.

  Here, as shown in FIG. 6, when viewed from the + Y side, the corner portion 43a of the side wall 40B on the + Y side is chamfered along the outer peripheral surface 33 of the roller 30a. That is, the radius of curvature of the corner 43a is set to be equal to the radius of the roller 30a. Thereby, the inner peripheral surface 50a of the cover member 50 is disposed so as to be in contact with the side wall 40B without forming a gap even at the corner portion 43a of the side wall 40B. Since all the corners 43a to 43d (see FIG. 1) of the pair of side walls 40A and 40B are formed identically, the corners 43a to 43d other than the corner 43a of the side wall 40B on the + Y side are described in detail. The detailed explanation is omitted.

  According to the modification of the embodiment, since the inner peripheral surface 50a of the cover member 50 is disposed so as to contact the pair of side walls 40A and 40B, both edge portions (−Y side edge portions 51c and 52c of the cover member 50). Compared with the case where the + Y side edge portions 51d and 52d) are arranged so as to be in contact with the pair of side walls 40A and 40B, it is possible to suppress the entry of dust, foreign matter, etc. into the inside of the moving device 1 particularly from the Z direction.

  Moreover, since the corners 43a to 43d of the pair of side walls 40A and 40B are chamfered along the outer peripheral surface 33 of the rollers 30a to 30d, even in the vicinity of the corners 43a to 43d of the pair of side walls 40A and 40B, It is possible to suppress the generation of a gap between the inner peripheral surface 50a of the cover member 50 and the pair of side walls 40A and 40B, and to arrange the inner peripheral surface 50a of the cover member 50 so as to contact the pair of side walls 40A and 40B. Therefore, it is possible to prevent dust, foreign matter, and the like from entering the inside of the moving device 1 even in the vicinity of the corners 43a to 43d of the pair of side walls 40A and 40B.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

The materials and shapes of the base portion 10, the slider portion 20, the rollers 30 (30 a to 30 d), the side walls 40 </ b> A and 40 </ b> B, the cover member 50, the pedestal portion 60, etc. are not limited to the embodiments and the modified examples of the embodiments.
In the embodiment, the cover member 50 is bridged between the two pairs of rollers 30, but the cover member 50 may be bridged between the pair of rollers.

  The cover member 50 is divided into the first cover member 51 and the second cover member 52 and connected to the slider unit 20. However, the cover member 50 may be connected to the slider unit 20 without dividing the cover member 50. However, since the cover member 50 can be developed in a band shape simply by releasing the connection between the first cover member 51 or the second cover member 52 and the slider portion 20, maintenance inside the moving device 1 can be easily performed. Therefore, the embodiment has an advantage in that maintenance is easy.

  In the embodiment, the other end portion 51 b of the first cover member 51 and the other end portion 52 b of the second cover member 52 are connected to each other via the joint member 57, but the first cover is not provided via the joint member 57. The other end 51b of the member 51 and the other end 52b of the second cover member 52 may be directly connected. However, it is necessary to provide openings in the first cover member 51 and the second cover member 52 in order to avoid interference between the cover member 50 and the pedestal portion 60. Therefore, the present embodiment is advantageous in that strength can be secured in the connection between the first cover member 51 and the second cover member 52.

  Although the through hole 63 into which the joint member 57 can be inserted is formed at the position corresponding to the joint member 57 in the pedestal portion 60 of the embodiment, the through hole 63 may not be provided. In this case, the joint member 57 is disposed on the + Y side and the −Y side of the pedestal portion 60. However, the through hole 63 is provided in the pedestal portion 60, the joint member 57 is inserted into the through hole 63, and the inner peripheral surface 63a of the through hole 63 is formed of a resin member, thereby preventing damage to the joint member 57 due to friction. Therefore, this embodiment has an advantage.

  In the modification of the embodiment, the radius of curvature of the corners 43a to 43d is set to be equal to the radius of the rollers 30a to 30d. On the other hand, the curvature radii of the corner portions 43a to 43d may be set to be smaller than the radius of the roller 30a. Thereby, since it can prevent that the corner | angular parts 43a-43d are arrange | positioned outside the outer peripheral surface 33 of the rollers 30a-30d, the cover member 50 can be reliably spanned over the rollers 30a-30d. However, the modification of the embodiment is advantageous in that the cover member 50 can be arranged so that the inner peripheral surface 50a of the cover member 50 is in contact with the corner portions 43a to 43d of the side walls 40A and 40B.

  In the embodiment, a linear motor has been described as an example of an actuator that drives the slider unit 20, but the actuator that drives the slider unit 20 is not limited thereto. As an actuator for driving the slider unit 20, for example, an electric motor and a ball screw may be used, or a fluid pressure cylinder or the like may be used. However, when the linear motor is employed as the actuator of the moving device 1, it is possible to suppress the intrusion of dust, foreign matter or the like into the moving device 1 even when dust or foreign matter is attracted by the magnetic force. Therefore, the present invention is particularly effective when a linear motor is employed as the actuator of the moving device 1.

  In addition, it is possible to appropriately replace the components in the above-described embodiments with known components without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Moving apparatus 10 ... Base part 11 ... One main surface 20 ... Slider part 30, 30a, 30b, 30c, 30d ... Roller 33 ... Outer peripheral surface C ... Center axis L ... Movement range 40A, 40B ... Side wall 43a, 43b, 43c, 43d ... Corner 50 ... Cover member 51 ... First cover member (cover member) 51b, 52b ... Others End portions (end portions) 51c, 51d, 52c, 52d .. Edge portion 52... Second cover member (cover member) 57... Joint member 60 .. Base portion 63. ..Inner surface

Claims (7)

A slider part that is slidable along the first direction on one main surface of the base part;
Having a central axis along a second direction orthogonal to the first direction on the one main surface, and at least a pair of rollers disposed on both outer sides of the movement range of the slider portion in the first direction;
Standing along a third direction perpendicular to the first direction and the second direction, the base portion and the pair of rollers are arranged on both outer sides in the second direction, and rotate the pair of rollers. A pair of side walls to support freely;
A cover member fixed to the slider portion and interlocked with the slider portion, and spanned between the pair of rollers;
With
The cover member is formed in an annular shape by both ends in the first direction being folded back by the pair of rollers and connected to each other on the other main surface side of the base portion,
The moving device, wherein the cover member is disposed so as to contact the pair of side walls.   The moving device according to claim 1, wherein the both end portions of the cover member are connected to each other via a joint member. On the other main surface side of the base portion, a pedestal portion that supports the base portion is provided,
The pedestal portion is formed with a through hole through which the joint member can be inserted along the first direction at a position corresponding to the joint member.
The moving device according to claim 2, wherein an inner surface of the through hole is formed of a resin material. Both edge portions in the second direction of the cover member are arranged flush with the outer surface in the second direction of the pair of side walls, respectively, outside the outer surface,
4. The moving device according to claim 1, wherein an inner peripheral surface of the cover member is disposed so as to contact the pair of side walls. 5. The pair of rollers are supported by the pair of side walls at positions corresponding to corners of the pair of side walls when viewed from the second direction,
5. The moving device according to claim 4, wherein corners of the pair of side walls are chamfered along outer peripheral surfaces of the pair of rollers.   The moving device according to claim 1, wherein the cover member is divided at a position corresponding to the slider portion and is connected via the slider portion.   The moving device according to claim 1, wherein the slider portion is slid by magnetic force.

Images