Linear guide device

Abstract

In a linear guide device including: a rail having on either side surface thereof a track recess with a track surface formed thereon; a rail cover covering a rail upper surface of the rail; a saddle-like slider moving linearly on the rail; and a rolling member circulating through a connection path provided in the slider and adapted to roll on the track surface of the rail, the rail cover is equipped with a side edge portion having an engagement portion, an upper track surface serving as an engagement surface is provided in a lower portion of an upper side surface of the rail, the engagement surface being a slope gradually diminishing in the rail width direction downwardly from the upper side surface, and an engagement portion of the rail cover is engaged with the engagement surface, whereby it is possible to achieve an increase in the speed of the rail grinding work for allowing engagement of the rail cover covering the rail upper surface of the liner guide device.

1. A linear guide device comprising: a rail having on both side surfaces thereof a track recess with a track surface formed thereon; a rail cover covering a rail upper surface of the rail; a saddle-like slider moving linearly on the rail; and a rolling member circulating through a connection path provided in the slider and adapted to roll on the track surface of the rail,
 wherein the rail cover is equipped with a side edge portion having an engagement portion, wherein the track recess is provided in a lower portion of an upper side surface of the rail, an upper track surface of the track recess being a slope gradually diminishing in a width direction of the rail downwardly from the upper side surface, and wherein said engagement portion of the rail cover is engaged with the upper track surface of the track recess. 
 
     
     
       2. A linear guide device according to  claim 1 , wherein an adhesive tape is provided at least on the rail upper surface of the rail between the rail upper surface and the rail cover, and wherein the rail cover is bonded to the rail by adhesive tape. 
     
     
       3. A linear guide device according to  claim 1 , wherein the upper side surface and a lower side surface of the rail are flush with each other. 
     
     
       4. A linear guide device according to  claim 1 , wherein cutout portions are provided at at least one of front and rear ends with respect to a slider moving direction of both side edge portions of the rail cover, the cutout portions being formed by cutting a part of the side edge portions obliquely toward a cover end surface. 
     
     
       5. A linear guide device comprising: a rail having on both side surfaces thereof a track recess with a track surface formed thereon; a rail cover covering a rail upper surface of the rail; a saddle-like slider moving linearly on the rail; and a rolling member circulating through a connection path provided in the slider and adapted to roll on the track surface of the rail,
 wherein the rail cover is equipped with a side edge portion having an engagement portion, wherein an engagement surface is provided in a lower portion of an upper side surface of the rail, the engagement surface being a slope gradually diminishing in a width direction of the rail downwardly from the upper side surface, and wherein said engagement portion of the rail cover is engaged with a corner portion made by the engagement surface and the upper side surface. 
 
     
     
       6. A linear guide device according to  claim 5 , wherein an adhesive tape is provided at least on the rail upper surface of the rail and between the rail upper surface and the rail cover, and wherein the rail cover is bonded to the rail by the adhesive tape. 
     
     
       7. A linear guide device according to  claim 5 , wherein the engagement surface comprises an upper track surface of the track recess of the rail. 
     
     
       8. A linear guide device according to  claim 5 , wherein the side surface and a lower side surface of the rail are flush with each other. 
     
     
       9. A linear guide device according to  claim 5 , wherein cutout portions are provided on both side edge portions of the rail cover at at least one of the front or rear ends with respect to a slider moving direction, the cutout portions comprising a cut in the side edge portions, wherein said side edge portions extend obliquely toward a cover end surface. 
     
     
       10. A linear guide device comprising: a rail having on both side surfaces thereof a track recess with a track surface formed thereon; a rail cover covering a rail upper surface of the rail; a saddle-like slider moving linearly on the rail; and a rolling member circulating through a connection path provided in the slider and adapted to roll on the track surface of the rail,
 wherein the rail cover is equipped with a side edge portion having an engagement portion, wherein an engagement surface is provided in a corner portion made by an upper side surface of the rail and an upper track surface of the track recess, the engagement surface being a slope gradually diminishing in a width direction of the rail downwardly from the upper side surface, and wherein said engagement portion of the rail cover is engaged with the engagement surface. 
 
     
     
       11. A linear guide device according to  claim 10 , wherein an adhesive tape is provided at least on the rail upper surface of the rail and between the rail upper surface and the rail cover, and wherein the rail cover is bonded to the rail by the adhesive tape. 
     
     
       12. A linear guide device according to  claim 10 , wherein the upper side surface and a lower side surface of the rail are flush with each other. 
     
     
       13. A linear guide device according to  claim 10 , wherein cutout portions are provided on both side edge portions of the rail cover at at least one of the front or rear ends with respect to a slider moving direction, the cutout portions being formed by cutting a part of the side edge portion obliquely toward a cover end surface.