JP5837348B2 - Motion guide device, drive device - Google Patents

Description

  The present invention relates to a motion guide device and a drive device, and more particularly to a motion guide device and a drive device including a seal member and a packing member.

  Conventionally, a motion guide device such as a linear guide and a drive device such as a ball screw are known. Among these, the motion guide device includes a raceway member having a rolling element rolling surface in the longitudinal direction, a loaded rolling element rolling surface facing the rolling element rolling surface, and a parallel to the loaded rolling element rolling surface. A plurality of rolling elements arranged in a freely rolling manner on a loaded rolling element rolling path comprising a moving member having an unloaded rolling element rolling path, and the rolling element rolling surface and the loaded rolling element rolling surface. And the linear movement of the moving member relative to the track member is made freely. Further, the driving device includes a shaft member having a rolling element rolling surface spiraled in the longitudinal direction, a spiral loaded rolling element rolling surface facing the rolling element rolling surface, and a parallel to the shaft member. A plurality of rolling elements that are freely rollable on a loaded rolling element rolling path comprising a movable member having an unloaded rolling element rolling path, and the rolling element rolling surface and the loaded rolling element rolling surface The apparatus can freely rotate the movable member relative to the shaft member.

  In this type of device, a plurality of rolling elements arranged between the track member and the moving member, or between the shaft member and the movable member perform repeated rolling motion, so that the constituent members of these devices are repeatedly contacted. Stress is to be applied. Therefore, a metal material, a resin material, etc. excellent in fatigue life and wear resistance are adopted as members constituting this type of apparatus. In addition, since this type of device is required to have a highly accurate guide motion and drive operation, and further to be able to be used stably in any environment, for example, a track member and a moving member, or a shaft member and a movable member. It is done to improve the dust resistance by installing a seal member between the two, or to improve the sealing performance between the component parts by installing a packing member that closes the gap between the component parts It was.

  As a prior art document disclosing a driving device including the above-described seal member and packing member, for example, there is Patent Document 1 below.

JP-A-11-335657

  By the way, the seal member and packing member described above are attached to an end plate which is a component part of a moving block when used in, for example, a linear guide. However, these conventional seal members and packing members are different from end plates. It was manufactured and assembled as a separate member. Therefore, if the end plate, the seal member, and the packing member can be manufactured in an integrated manner, the number of components and the manufacturing process can be reduced, so that the merit that the manufacturing cost can be reduced can be obtained.

  However, in order to manufacture the end plate and the seal member or packing member in an integrated manner, it is necessary to adopt a member shape that takes into account restrictions in manufacturing technology, and when molding a resin material using a mold. Therefore, it is necessary to design an appropriate product shape in consideration of the shrinkage rate when the resin material is cooled and the oil flow in the mold. The present applicant has already proposed that a component such as an end plate and a seal member or a packing member are integrally manufactured using a two-color molding technique and provided as a single component. And others, as a result of diligent efforts to mass-produce the end plate, seal member, and packing member that are integrally molded using the two-color molding technology, the manufacturing should be easy, quality defects should be reduced, and manufacturing costs should be reduced. To achieve a product shape that can be used.

  That is, the present invention is easy to manufacture, reduces quality defects, and reduces manufacturing costs when mass-producing parts such as end plates and seal members and packing members as an integrated part by two-color molding technology. It was made for the purpose of providing a product having a shape that can be used.

In order to achieve the above-described object, a motion guide device according to the present invention includes a raceway member having a rolling element rolling surface in a longitudinal direction, a loaded rolling element rolling surface facing the rolling element rolling surface, Rollable to a loaded rolling element rolling path comprising a moving member having an unloaded rolling element rolling path parallel to the loaded rolling element rolling surface, and the rolling element rolling surface and the loaded rolling element rolling surface. A plurality of rolling elements disposed on the movement member, and a direction change path connecting the loaded rolling element rolling path and the unloaded rolling element rolling path is provided at an end of the moving member. The lid portion has a lid portion, and the lid portion closes a lid main body portion, a seal member that is slidably contacted with the raceway member, and an installation surface of the lid portion in the moving member. A packing member, and the lid main body portion, the seal member, and The packing member is molded by two-color molding, further, the seal member and discontinuously formed with at least one of said packing member, the lid body portion, a plurality of through holes are formed, At least one of the seal member and the packing member is configured to have a columnar shape that conducts the plurality of through holes, and the columnar shape has a diameter in the width direction at a part of the longitudinal direction. by dimensions are formed differently and is characterized that you have been formed with a retaining shape. The motion guide device according to the present invention includes a raceway member having a rolling element rolling surface in a longitudinal direction, a loaded rolling element rolling surface facing the rolling element rolling surface, and the loaded rolling element rolling surface. A plurality of movable members arranged on a rolling member rolling path including a moving member having a parallel unloaded rolling member rolling path, and the rolling element rolling surface and the loaded rolling member rolling surface. A rolling guide, and a lid having a direction change path connecting the loaded rolling element rolling path and the unloaded rolling element rolling path is installed at an end of the moving member. The lid portion includes a lid body portion, a seal member installed so as to be in sliding contact with the track member without a gap, and a packing member that closes an installation surface of the lid portion in the moving member. , The lid main body, the seal member, and the packing member are 2 The sealing member is formed by molding, further includes at least one packing member formed discontinuously with the sealing member, and a plurality of locking holes are formed in the lid main body portion, and the sealing member and At least one of the packing members has a locking member that fits into the plurality of locking holes.

The drive device according to the present invention includes a shaft member having a rolling element rolling surface spiraled in a longitudinal direction, a loaded rolling element rolling surface having a spiral shape facing the rolling element rolling surface, A movable member having a no-load rolling element rolling path parallel to the shaft member, and a load rolling element rolling path composed of the rolling element rolling surface and the loaded rolling element rolling surface is disposed to be freely rollable. A driving device comprising a plurality of rolling elements, wherein the movable member is provided with a circulation part that connects the loaded rolling element rolling path and the unloaded rolling element rolling path in the lid part, and the lid part is A lid main body, a seal member installed so as to be in sliding contact with the shaft member without a gap, and a packing member that closes an installation surface of the lid in the movable member, and the lid main body, The seal member and the packing member are molded by two-color molding. Further, the sealing member and discontinuously formed with at least one of said packing member, the lid body portion, a plurality of through holes are formed, at least one of the sealing member and the packing member, the It is configured to have a columnar shape that conducts through a plurality of through-holes, and the columnar shape is formed so that the diameter in the width direction is different at some locations in the longitudinal direction, thereby preventing the columnar shape. those characterized that you have been formed with a shape. Furthermore, the drive device according to the present invention includes a shaft member having a rolling element rolling surface spiraled in the longitudinal direction, a spiral loaded rolling element rolling surface facing the rolling element rolling surface, A movable member having a no-load rolling element rolling path parallel to the shaft member, and a load rolling element rolling path composed of the rolling element rolling surface and the loaded rolling element rolling surface is disposed to be freely rollable. A driving device comprising a plurality of rolling elements, wherein the movable member is provided with a circulation part that connects the loaded rolling element rolling path and the unloaded rolling element rolling path in the lid part, and the lid part is A lid main body, a seal member installed so as to be in sliding contact with the shaft member without a gap, and a packing member that closes an installation surface of the lid in the movable member, and the lid main body, The seal member and the packing member are molded by two-color molding. In addition, at least one packing member formed discontinuously with the seal member is provided, and a plurality of locking holes are formed in the lid main body, and at least the seal member and the packing member One is characterized by having a locking member that fits into the plurality of locking holes.

  According to the present invention, when mass-producing a component such as an end plate and a sealing member or packing member as an integrated component by two-color molding technology, manufacturing is easy, quality defects are reduced, and manufacturing cost is reduced. A product having a shape that can be provided can be provided.

It is an appearance perspective view which illustrates one form of the linear guide device concerning this embodiment. It is sectional drawing for demonstrating the infinite circuit provided with the linear guide apparatus shown in FIG. It is an external appearance perspective view which shows the external appearance shape of the cover part which concerns on this embodiment, and has shown the surface by the side of an anti-moving block especially. It is an external appearance perspective view which shows the external appearance shape of the cover part which concerns on this embodiment, and has shown the surface by the side of a movement block especially. FIG. 3 is an external perspective view showing a state in which the end seal 15 and the packing member 16 are removed from the lid portion 17 to make only the lid main body portion 18, and particularly shows the surface on the counter-moving block side. FIG. 2 is an external perspective view showing a state in which the end seal 15 and the packing member 16 are removed from the lid portion 17 and only the lid main body portion 18 is provided, and particularly shows the surface on the moving block side. It is the external appearance perspective view of the state which removed the cover main-body part 18 from the cover part 17, and made it only the end seal 15 and the packing member 16, and has shown the state seen from the anti-moving block side especially. It is the external appearance perspective view of the state which removed the cover main-body part 18 from the cover part 17, and made it only the end seal 15 and the packing member 16, and has shown the state seen from the movement block side especially. It is a figure which shows the convex shape which concerns on this embodiment, The division figure (a) in the figure has shown the surface by the side of the movement block of the packing member 16, and a division figure (b) is a part in the division figure (a). The AA cross section of is shown. It is a partially broken perspective view for demonstrating the structure of the ball screw apparatus as a drive device which concerns on this embodiment.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments for carrying out the invention will be described with reference to the drawings. The following embodiments do not limit the invention according to each claim, and all combinations of features described in the embodiments are not necessarily essential to the solution means of the invention. .

  First, the overall configuration of a linear guide device 10 as a motion guide device according to the present embodiment will be described with reference to FIGS. 1 and 2. Here, FIG. 1 is an external perspective view illustrating one embodiment of the linear guide device according to this embodiment. FIG. 2 is a cross-sectional view for explaining an infinite circuit provided in the linear guide device shown in FIG.

  A linear guide device 10 as a motion guide device according to the present embodiment is a slidably mounted movement via a track rail 11 as a track member and balls 12... Installed as a number of rolling elements on the track rail 11. And a moving block 13 as a member. Bolt holes 11b for attaching the track rail 11 to the base are formed at equal intervals in the track rail 11 by passing bolts as attachment means from the upper surface to the lower surface of the track rail 11. The bolt holes 11b are formed at equal intervals. By using, the track rail 11 can be fixedly installed on the reference plane. The track rail 11 is a long member whose cross section perpendicular to the longitudinal direction is formed in a substantially rectangular shape, and the surface (upper surface and both side surfaces) becomes a track when the balls 12 roll. Rolling element rolling surfaces 11 a as raceways are formed over the entire length of the track rail 11.

  The track rail 11 may be formed to extend linearly or may be formed to extend in a curved line. In addition, the number of rolling element rolling surfaces 11a illustrated in FIG. 1 and FIG. 2 is four in total, two on each side, but the number is arbitrarily set according to the application of the linear guide device 10 and the like. Can be changed.

  On the other hand, the moving block 13 is provided with a loaded rolling element rolling surface 13a as a raceway surface at a position corresponding to each of the rolling element rolling surfaces 11a. The rolling element rolling surfaces 11a of the track rail 11 and the loaded rolling element rolling surfaces 13a of the moving block 13 form a loaded rolling element rolling path 22 and a plurality of balls 12 are sandwiched therebetween. The moving block 13 is formed with four unloaded rolling element rolling paths 23 extending in parallel with the rolling element rolling surfaces 11a.

  Furthermore, a pair of cover parts 17 and 17 are installed at both ends in the moving direction of the moving block. Each of the pair of lid portions 17 and 17 is provided with a direction changing path 25. This direction change path 25 is comprised so that the end of unloaded rolling-element rolling path 23 ... and the end of load rolling-element rolling path 22 ... can be tied. Therefore, one infinite circuit is constituted by a combination of one loaded rolling element rolling path 22 and unloaded rolling element rolling path 23 and a pair of direction changing paths 25, 25 connecting them (see FIG. 2). ).

  A plurality of balls 12 are installed in an infinite circulation path composed of a loaded rolling element rolling path 22, an unloaded rolling element rolling path 23, and a pair of direction changing paths 25, 25 so as to allow infinite circulation. The moving block 13 can reciprocate relative to the track rail 11.

  In addition, each of the pair of lid portions 17 and 17 has a pair of end seals 15 as seal members so as to close a gap between the moving block 13 and the track rail 11 outside the pair of direction change paths 25 and 25. 15 is installed. The end seal 15 can be provided with a lip portion at a contact point with the track rail 11, and the lip portion or the end seal 15 itself is slidably contacted with the track rail 11 without a gap, so that the linear guide device 10 can be contacted. It is possible to provide a dustproof effect.

  Further, a packing member (not shown in FIGS. 1 and 2) is sandwiched between the moving block 13 and the pair of lid portions 17 and 17. This packing member (not shown) exhibits a function of closing the installation surface of the lid portion 17 in the moving block 13, and by closing a gap existing between the moving block 13 and the lid portion 17, the moving block 13 and the lid It plays the role which improves the airtightness with the part 17. FIG.

  The overall configuration of the linear guide device 10 according to the present embodiment has been described above, but the characteristic configuration in the present embodiment is the shape of the end seal 15 and the packing member formed integrally with the lid portion 17. is there. Therefore, next, the shapes of the end seal 15 and the packing member that are integrally molded with the lid portion 17 will be described in detail with reference to FIGS.

  Here, FIG. 3 and FIG. 4 are external perspective views showing the external shape of the lid according to the present embodiment, FIG. 3 shows the surface on the anti-moving block side, and FIG. 4 shows the surface on the moving block side Is shown. 5 and 6 are external perspective views of the state in which the end seal 15 and the packing member 16 are removed from the lid portion 17 so that only the lid main body portion 18 is obtained, and FIG. 5 shows the surface on the anti-moving block side. FIG. 6 shows the moving block side surface. Further, FIGS. 7 and 8 are external perspective views of the state in which the lid main body 18 is removed from the lid portion 17 to make only the end seal 15 and the packing member 16, and FIG. FIG. 8 shows a state viewed from the moving block side. Although details will be described later, for the lid portion 17 of the present embodiment, the lid body portion 18, the end seal 15 and the packing member 16 are integrally formed by two-color molding, so that each member is divided. 3 and 4 are always in the state. That is, FIGS. 5 to 8 are exploded views drawn for convenience of explanation.

  As shown in FIGS. 3 and 4, the lid portion 17 of the present embodiment includes a lid body portion 18, an end seal 15 as a seal member, and a packing member 16, and these three members are The molding is performed integrally by two-color molding.

  The lid main body portion 18 is a member constituting the outer shape of the lid portion 17 and is a member attached to both ends of the moving block 13. Therefore, a plurality of bolt mounting holes 18 a are formed in the lid main body portion 18, and the mounting to the moving block 13 is possible. Further, the lid body 18 is formed with a recess 18b at a position where the end seal 15 and the packing member 16 are formed. Therefore, by forming the end seal 15 and the packing member 16 into the recess 18b, the three members of the lid main body portion 18, the end seal 15 and the packing member 16 can be stably integrated. ing.

  The end seal 15 which is a seal member of the present embodiment is a member installed so as to be in sliding contact with the track rail 11 without a gap. Therefore, when the moving block 13 performs a linear movement relative to the track rail 11, the end seal 15 that moves linearly together with the moving block 13 always contacts the track rail 11, and the track rail 11 and the moving block 13 are moved. It is configured to close the gap between them. The end seal 15 functions to prevent, for example, dust from the outside from entering the moving block 13.

  The packing member 16 of this embodiment is a member that is sandwiched between the moving block 13 and the lid main body 18 when the lid 17 is attached to the moving block 13. That is, the packing member 16 functions as a member that closes the installation surface of the lid portion 17 in the moving block 13, and plays a role of increasing the sealing degree of the joint portion between the moving block 13 and the lid portion 17. In particular, inside the moving block 13, a plurality of balls 12 repeats rolling motion in an infinite circulation path, and a lubricant such as oil or grease is applied. The packing member 16 functions in order to prevent the lubricant and the like present in such a moving block from leaking from the gap on the installation surface with the lid portion 17.

  As described above, the lid portion 17 is configured by integrally forming the three members of the lid main body portion 18, the end seal 15, and the packing member 16 by two-color molding, but the lid portion 17 according to the present embodiment. Has additional significant morphological features.

  First, in the lid portion 17 according to the present embodiment, the range in which the end seal 15 and the packing member 16 are formed is limited to the minimum range. Therefore, when the end seal 15 and the packing member 16 are viewed from the moving direction of the moving block 13, the overlapping area is reduced. As a result, the lid portion 17 of the present embodiment is configured to include at least one packing member that is discontinuously formed with the end seal 15 (illustrated in detail in FIGS. 7 and 8). This configuration is adopted from the viewpoint of improving the molding quality at the time of two-color molding. That is, when the lid portion 17 according to the present embodiment is molded in two colors, after the lid body portion 18 that is the primary side is molded, the end seal 15 and the packing member 16 that are the secondary side are molded. However, when the range (volume) of the molding member on the secondary side is large, distortion easily occurs due to sink marks or the like at the time of cooling, and it becomes very difficult to mold or control the molding. Therefore, by minimizing the formation range (volume) of the molding member on the secondary side, it becomes easy to predict the shape of the material at the time of molding, and a suitable mold design becomes possible. Further, by minimizing the formation range of the end seal 15 and the packing member 16, the material cost can be reduced, and the manufacturing cost can be reduced.

  Further, the lid portion 17 according to the present embodiment has an advantageous feature in the connection shape between the lid main body portion 18 and the end seal 15. As described above, when the moving block 13 moves linearly relative to the track rail 11, the end seal 15 always comes into contact with the track rail 11 without a gap and receives sliding resistance. The seal 15 needs to be surely integrally formed with the lid body 18. Therefore, in the present embodiment, a plurality of through holes 18c are formed in the lid main body portion 18, while the end seal 15 has a columnar shape 15c that conducts through the plurality of through holes 18c of the lid main body portion 18. Is formed. In addition, since the distal end portions of the plurality of through holes 18c are formed to have a large diameter size, the columnar shape 15c formed as a secondary side at that location has a retaining shape in which the distal end portion has a larger diameter size. 15c 'will be formed. By the action of the columnar shape 15c having such a retaining shape 15c ′ and the through hole 18c into which such a columnar shape 15c is fitted, the end seal 15 can be surely integrated with the lid body 18. It becomes.

  In the present embodiment, the columnar shape 15 c having the retaining shape 15 c ′ is formed on the end seal 15, but this columnar shape may be formed on the packing member 16.

  In addition, the columnar shape 15c having the retaining shape 15c ′ illustrated in the present embodiment is formed as a columnar shape, but the columnar shape and the retaining shape according to the present invention are the same as the present embodiment. Any material can be used as long as the effect can be exhibited. That is, the columnar shape of the present invention is only required to be formed with a retaining shape so that the radial dimension is different at some locations in the longitudinal direction. For example, the retaining shape 15c ′ having a larger radial dimension. May be a position other than the tip portion of the columnar shape 15c (for example, an intermediate position of the columnar shape 15c, etc.), for example, the entire columnar shape is formed in a conical shape, A retaining shape may be formed as the entire columnar shape.

  As described above, the combination of the plurality of through holes 18c and the columnar shape 15c having the retaining shape 15c ′ has been described as a configuration for realizing a surely fixed state between the lid main body 18 and the end seal 15. In the embodiment, a further configuration is added to prevent the end seal 15 and the packing member 16 from being displaced with respect to the lid main body portion 18. That is, the lid body 18 is further formed with a plurality of locking holes 18d in addition to the plurality of through holes 18c described above, while the end seal 15 and the packing member 16 have a plurality of locking holes. Locking members 15d and 16d that fit into 18d are formed. The locking hole 18d formed in the lid main body portion 18 of the present embodiment may be formed so as to penetrate the lid main body portion 18, or the intermediate position of the member from the surface of the lid main body portion 18 without penetrating. May be formed. By fitting the columnar locking member 15d of the end seal 15 and the columnar locking member 16d of the packing member 16 into the locking hole 18d, the end seal 15 for the lid main body 18 is fitted. In addition, the positive displacement of the packing member 16 is realized.

  With the above configuration, the end seal 15 according to the present embodiment is maintained in a fixed state with respect to the lid body 18 by the action of the two shapes of the columnar shape 15c having the retaining shape 15c ′ and the locking member 15d. The Rukoto. Further, the packing member 16 according to the present embodiment is sandwiched between the moving block 13 and the lid main body portion 18 after being reliably positioned and displaced by the action of the locking member 16d. The member 16 is always sandwiched at a suitable position, and the function as the packing member can be surely exhibited. Therefore, it is possible to provide a motion guide device that has a shape that is easy to manufacture, has few quality defects, and can reduce manufacturing costs.

  In the packing member 16 according to the present embodiment, a convex shape 16 a is formed on the contact surface side with the moving block 13. This convex shape 16a is shown in detail in FIG. In FIG. 9, a partial view (a) shows a surface of the packing member 16 on the moving block side of the packing member 16 formed discontinuously with the end seal 15. The AA cross section in fraction (a) is shown. The convex shape 16 a according to the present embodiment is a shape that functions to enhance the sealing performance of the lid portion 17 when the packing member 16 is installed on the moving block 13, and the packing member 16 has the moving block 13 and the lid portion 17. When the convex shape 16a is crushed, the gap between the moving block 13 and the lid portion 17 is reliably closed. Due to this action, the effect of further enhancing the function of the packing member 16 according to the present embodiment is exhibited.

  The case where the motion guide device according to the present invention is configured as the linear guide device 10 has been described with reference to FIGS. However, the present invention can be applied not only to a motion guide device such as a linear guide device but also to a drive device such as a ball screw device. Then, next, an example of a ball screw device as a drive device to which the present invention can be applied will be described with reference to FIG.

  FIG. 10 is a partially broken perspective view for explaining the configuration of the ball screw device as the driving device according to the present embodiment. A ball screw device 40 as a drive device according to the present embodiment includes a screw shaft 41 as a shaft member having a rolling element rolling surface 42 having a spiral surface, and a rolling element rolling surface 42 included in the screw shaft 41. A nut member 51 as a movable member having opposing spiral load rolling element rolling surfaces 42 and balls 61 as a plurality of rolling elements interposed between the screw shaft 41 and the nut member 51 are provided. Yes.

  The screw shaft 41 is a member formed to extend in the axial direction, and the nut member 51 assembled to the screw shaft 41 can reciprocate along the axial direction of the screw shaft 41 while performing a relative rotational motion. It has become. In addition, a spiral rolling element rolling surface 42 is formed on the outer surface of the screw shaft 41, and a plurality of balls 61 can roll while receiving a load in the rolling element rolling surface 42.

  The nut member 51 includes a nut main body portion 53 disposed at the center portion, and a pair of end caps 54 and 54 as lid portions disposed at both ends of the nut main body portion 53. The nut main body 53 has a screw shaft through hole 55 penetrating in the axial direction, and the above-described screw shaft 41 can be conducted to the screw shaft through hole 55. On the inner peripheral surface of the screw shaft through hole 55, a spiral loaded rolling element rolling surface 52 is formed opposite to the spiral rolling element rolling surface 42 formed on the screw shaft 41. The rolling element rolling surface 42 and the loaded rolling element rolling surface 52 constitute a loaded rolling element rolling path 56.

  Further, the nut member 51 is formed with a no-load rolling element rolling path 57 penetrating the nut main body 53 and a direction changing path 58 as a circulation portion formed in each of the pair of end caps 54, 54. The direction changing path 58 connects the end of the loaded rolling element rolling path 56 and the unloaded rolling element rolling path 57, so that the loaded rolling element rolling path 56, the unloaded rolling element rolling path 57, and the pair of direction changing paths 58. , 58 constitute an infinite circuit.

  In the ball screw device 40 according to the present embodiment, since the plurality of balls 61 are disposed in the infinite circulation path, the nut member 51 performs a relative rotational motion with respect to the screw shaft 41. The relative reciprocation of the nut member 51 with respect to the screw shaft 41 is possible.

  In such a ball screw device 40, the end cap 54 serving as a lid according to the present embodiment has a seal member 54b installed so as to be slidably contacted with the screw shaft 41, which is a shaft member, and a movable member. A packing member (not shown) that closes the installation surface with the nut member 51 is installed. Then, by integrally molding a sealing member 54b and a packing member (not shown) with respect to such an end cap 54 by two-color molding, and adding the characteristic form described with reference to FIGS. It is possible to provide a ball screw device 40 that is easy to manufacture, has few quality defects, and can reduce manufacturing costs.

  As mentioned above, although preferred embodiment of this invention was described, the technical scope of this invention is not limited to the range as described in the said embodiment. Various modifications or improvements can be added to the embodiment.

  For example, the seal member illustrated in FIGS. 1 to 8 is the end seal 15, but the seal member to which the present invention can be applied is not limited to this, and a seal called a side seal, an inner seal, a double seal, or a scraper is used. Applicable to all members.

  Further, the linear guide device 10 and the ball screw device 40 described above use the balls 12 and 61 as rolling elements. It is also possible to apply the present invention to this.

  It is apparent from the description of the scope of claims that embodiments with such changes or improvements can be included in the technical scope of the present invention.

  DESCRIPTION OF SYMBOLS 10 Linear guide apparatus, 11 Track rail, 11a Rolling body rolling surface, 11b Bolt hole, 12 Ball, 13 Moving block, 13a Load rolling body rolling surface, 15 End seal, 15c Columnar shape, 15c 'Retaining shape, 15d Locking member, 16 packing member, 16a convex shape, 16d locking member, 17 lid portion, 18 lid body portion, 18a bolt mounting hole, 18b recess, 18c through hole, 18d locking hole, 22 loaded rolling element rolling path, 23 unloaded rolling element rolling path, 25 direction changing path, 40 ball screw device, 41 screw shaft, 51 nut member, 52 loaded rolling element rolling surface, 53 nut main body, 54 end cap, 54b seal member, 55 screw shaft Through-hole, 56 loaded rolling element rolling path, 57 unloaded rolling element rolling path, 58 direction changing path, 61 balls.

Claims (6)

A raceway member having a rolling element rolling surface in the longitudinal direction;
A moving member having a loaded rolling element rolling surface facing the rolling element rolling surface, and an unloaded rolling element rolling path parallel to the loaded rolling element rolling surface;
A plurality of rolling elements which are arranged so as to be freely rollable on a loaded rolling element rolling path composed of the rolling element rolling surface and the loaded rolling element rolling surface;
An exercise guidance device comprising:
At the end of the moving member, a lid having a direction changing path connecting the loaded rolling element rolling path and the unloaded rolling element rolling path is installed,
The lid is
A lid body,
A seal member installed so as to be in sliding contact with the raceway member without a gap;
A packing member for closing the installation surface of the lid in the moving member;
And the lid body part, the seal member, and the packing member are molded by two-color molding,
Including at least one packing member formed discontinuously with the seal member ;
In the lid body portion, a plurality of through holes are formed,
At least one of the seal member and the packing member is configured to have a columnar shape that conducts the plurality of through holes, and
The columnar shape, that the diameter of the width direction at some point in the longitudinal direction are formed differently, motion guide device which is characterized that you have been formed with a retaining shape. A raceway member having a rolling element rolling surface in the longitudinal direction;
A moving member having a loaded rolling element rolling surface facing the rolling element rolling surface, and an unloaded rolling element rolling path parallel to the loaded rolling element rolling surface;
A plurality of rolling elements which are arranged so as to be freely rollable on a loaded rolling element rolling path composed of the rolling element rolling surface and the loaded rolling element rolling surface;
An exercise guidance device comprising:
At the end of the moving member, a lid having a direction changing path connecting the loaded rolling element rolling path and the unloaded rolling element rolling path is installed,
The lid is
A lid body,
A seal member installed so as to be in sliding contact with the raceway member without a gap;
A packing member for closing the installation surface of the lid in the moving member;
And the lid body part, the seal member, and the packing member are molded by two-color molding,
Including at least one packing member formed discontinuously with the seal member ;
A plurality of locking holes are formed in the lid body part,
Said seal member and at least one of said packing member, the motion guide device according to claim that you have been formed with a locking member which fits into the plurality of engaging holes. The motion guide apparatus according to claim 1 or 2 ,
The lid main body portion has a recess at a position where the seal member or the packing member is molded, and is shaped so that the seal member or the packing member fits into the recess. Exercise guide device. In the exercise | movement guide apparatus of any one of Claims 1-3 ,
The movement guide device according to claim 1, wherein a convex shape is formed on the packing member in order to improve the sealing performance of the lid portion when installed on the moving member. A shaft member having a rolling element rolling surface spiraled in the longitudinal direction;
A loaded rolling element rolling surface having a spiral shape facing the rolling element rolling surface, a movable member having an unloaded rolling element rolling path parallel to the shaft member, and
A plurality of rolling elements which are arranged so as to be freely rollable on a loaded rolling element rolling path composed of the rolling element rolling surface and the loaded rolling element rolling surface;
A drive device comprising:
In the movable member, a circulation part that connects the loaded rolling element rolling path and the unloaded rolling element rolling path is installed in the lid part,
The lid is
A lid body,
A seal member installed so as to be in sliding contact with the shaft member without any gap;
A packing member for closing the installation surface of the lid in the movable member;
And the lid body part, the seal member, and the packing member are molded by two-color molding,
Including at least one packing member formed discontinuously with the seal member ;
In the lid body portion, a plurality of through holes are formed,
At least one of the seal member and the packing member is configured to have a columnar shape that conducts the plurality of through holes, and
The columnar shape, that the diameter of the width direction at some point in the longitudinal direction are formed differently, the driving apparatus characterized that you have been formed with a retaining shape. A shaft member having a rolling element rolling surface spiraled in the longitudinal direction;
A loaded rolling element rolling surface having a spiral shape facing the rolling element rolling surface, a movable member having an unloaded rolling element rolling path parallel to the shaft member, and
A plurality of rolling elements which are arranged so as to be freely rollable on a loaded rolling element rolling path composed of the rolling element rolling surface and the loaded rolling element rolling surface;
A drive device comprising:
In the movable member, a circulation part that connects the loaded rolling element rolling path and the unloaded rolling element rolling path is installed in the lid part,
The lid is
A lid body,
A seal member installed so as to be in sliding contact with the shaft member without any gap;
A packing member for closing the installation surface of the lid in the movable member;
And the lid body part, the seal member, and the packing member are molded by two-color molding,
Including at least one packing member formed discontinuously with the seal member ;
A plurality of locking holes are formed in the lid body part,
Said seal member and at least one of said packing member, the driving device which is characterized that you have been formed with a locking member which fits into the plurality of engaging holes.

Images