Holder for disk drives

Abstract

The invention relates to an optical disk drive, and more particularly, to a holder for disk drives having an improved chuck structure for seating a disk. The holder of the invention, in use, is inserted into a central opening of a disk for detachably seating the disk, and comprises: a circular hub projected upward and sized equal to the central opening of the disk; a chuck projected from a lateral portion of the hub, wherein the chuck includes a rear portion elastically connected with the hub, a peak formed in a front portion of the chuck and a lower circular face of a curvature extended downward from the peak; and a support formed integral with the hub for contacting the lower circular face of the chuck to enable circular motion of the chuck.

What is claimed is:  
     
         1 . A holder for disk drives which is inserted into a central opening of a disk for detachably seating the disk, the holder comprising: 
 a circular hub projected upward and sized equal to the central opening of the disk;    a chuck projected from a lateral portion of the hub, wherein the chuck includes a rear portion elastically connected with the hub, a peak formed in a front portion of the chuck and a lower circular face of a curvature extended downward from the peak; and    a support formed integral with the hub for contacting the lower circular face of the chuck to enable circular motion of the chuck.    
     
     
         2 . The holder for disk drives as set forth in  claim 1 , wherein a contact face of the support contacting the lower circular face of the chuck is an inclination sloped at a predetermined angle in respect to a horizontal plane.  
     
     
         3 . The holder for disk drives as set forth in  claim 2 , wherein the inclination has an inclination angle of about 5 to 25 degree in respect to the horizontal plane.  
     
     
         4 . The holder for disk drives as set forth in  claim 1 , wherein a contact face of the support contacting the lower circular face of the chuck is an arc face.  
     
     
         5 . The holder for disk drives as set forth in  claim 4 , wherein the lower circular face of the chuck has a curvature radius smaller than that of the arc face of the support.  
     
     
         6 . The holder for disk drives as set forth in  claim 1 , further comprising a guide provided in rear of the chuck, the guide contacting the inside of the hub to restrict vertical circular motion of the chuck.  
     
     
         7 . A holder for disk drives which is inserted into a central opening of a disk for detachably seating the disk, the holder comprising: 
 a circular hub projecting upward and sized equal to the central opening of the disk;    a chuck projected from a lateral portion of the hub, wherein the chuck includes a rear portion elastically connected with the hub, a peak formed in a front portion of the chuck and a lower circular face of a curvature extended downward from the peak; and    a support formed integral with the hub for contacting the lower circular face of the chuck to enable circular motion and linear motion of the chuck in sequence.    
     
     
         8 . The holder for disk drives as set forth in  claim 7 , wherein a contact face of the support contacting the lower circular face of the chuck includes an inclined portion having a predetermined angle in respect to a horizontal plane and a horizontal portion connected with the inclined portion.  
     
     
         9 . The holder for disk drives as set forth in  claim 8 , wherein the inclined portion of the contact face has an inclination angle of about 5 to 25 degree.  
     
     
         10 . The holder for disk drives as set forth in  claim 7 , wherein a contact face of the support contacting the lower circular face of the chuck includes an arc face and a horizontal face connected with the arc face.  
     
     
         11 . The holder for disk drives as set forth in  claim 10 , wherein the lower circular face of the chuck has a curvature radius smaller than that of the arc face.  
     
     
         12 . The holder for disk drives as set forth in  claim 7 , further comprising a guide provided in rear of the chuck, the guide contacting the inside of the hub to restrict vertical circular motion of the chuck.  
     
     
         13 . A holder for disk drives which is inserted into a central opening of a disk for detachably seating the disk, the holder comprising: 
 a circular hub projected upward and sized equal to the central opening of the disk;    a chuck projected from a lateral portion of the hub, wherein the chuck includes a rear portion elastically connected with the hub, a peak formed in a front portion of the chuck and having a curvature radius on a horizontal plane equal to a radius of the central opening and a lower circular face of a curvature extended downward from the peak; and    a support formed integral with the hub for contacting the lower circular face of the chuck to enable circular motion of the chuck.    
     
     
         14 . The holder for disk drives as set forth in  claim 13 , wherein a contact face of the support is an inclination sloped at a predetermined angle in respect to the horizontal plane.  
     
     
         15 . The holder for disk drives as set forth in  claim 14 , wherein the inclination has an inclination angle of about 5 to 25 degree in respect to the horizontal plane.  
     
     
         16 . The holder for disk drives as set forth in  claim 13 , wherein a contact face of the support is an arc face.  
     
     
         17 . The holder for disk drives as set forth in  claim 16 , wherein the lower circular face of the chuck has a curvature radius smaller than that of the arc face of the support.  
     
     
         18 . The holder for disk drives as set forth in  claim 13 , further comprising a guide provided in rear of the chuck, the guide contacting the inside of the hub to restrict vertical circular motion of the chuck.  
     
     
         19 . A holder for disk drives which is inserted into a central opening of a disk for detachably seating the disk, the holder comprising: 
 a circular hub projected upward and sized equal to the central opening of the disk;    a chuck projected from a lateral portion of the hub, wherein the chuck includes a rear portion elastically connected with the hub, a peak formed in a front portion of the chuck and having a curvature radius on a horizontal plane equal to a radius of the central opening and a lower circular face of a curvature extended downward from the peak; and    a support formed integral with the hub for contacting the lower circular face of the chuck to enable circular motion and linear motion of the chuck in sequence.    
     
     
         20 . The holder for disk drives as set forth in  claim 19 , wherein a contact face of the support includes an inclined portion having a predetermined angle in respect to a horizontal plane and a horizontal portion connected with the inclined portion.  
     
     
         21 . The holder for disk drives as set forth in  claim 19 , wherein the inclined portion of the contact face has an inclination angle of about 5 to 25 degree.  
     
     
         22 . The holder for disk drives as set forth in  claim 19 , wherein a contact face of the support contacting the lower circular face of the chuck includes an arc face and a horizontal face connected with the arc face.  
     
     
         23 . The holder for disk drives as set forth in  claim 22 , wherein the lower circular face of the chuck has a curvature radius smaller than that of the arc face.  
     
     
         24 . The holder for disk drives as set forth in  claim 19 , further comprising a guide provided in rear of the chuck, the guide contacting the inside of the hub to restrict vertical circular motion of the chuck.