Patent ID: 7779658

Claim:
A locking device comprising: a lock body; a plurality of dial rings; and a fixing member which is elongated in shape and is locked by being directly fixed with said plurality of dial rings, wherein said fixing member includes a convex-concave part with repeated concaves and convexes formed in a longitudinal direction of said fixing member, wherein each of said plurality of dial rings includes a cutout which is provided on a part of a circumferential direction in such a manner that allows said fixing member to be freely insertable and removable at a rotation position which is an unlocking position and that at least one of said plurality of dial rings abuts the convexes of the concave-convex part at a rotation position except for the unlocking position, wherein said locking device further includes a passage to removably receive said fixing member, an insertion section of the passage extends to one of said plurality of dial rings from outside said locking device, and the insertion section of the passage is curved or angled along a direction of removably inserting said fixing member such that the cutout of each of said plurality of dial rings is not visible outside said locking device from the insertion section of the passage when said fixing member is not inserted into the insertion section of the passage and the insertion section of the passage is viewed from any direction, and wherein when said plurality of dial rings are in the unlocking position, the cutout of each of said plurality of dial rings forms a part of the passage to allow the convexes of said fixing member to pass through the cutouts.