Guidance device, device for moving disc-shaped member, can lid manufacturing system and beverage can manufacturing system

A guidance device comprising:

• an upstream-side guidance part including plural upstream-side guidance members disposed along a conveyance route of a disc-shaped member to be used as a can lid, to thereby guide the disc-shaped member;
• and
• a downstream-side guidance part including plural downstream-side guidance members disposed along the conveyance route, to thereby guide the disc-shaped member having been guided by the upstream-side guidance members and conveyed, wherein a guidance region in a conveyance direction of the disc-shaped member where the upstream-side guidance part guides the disc-shaped member and a guidance region in the conveyance direction where the downstream-side guidance part guides the disc-shaped member partially overlap in the conveyance direction, and movement of at least one of the upstream-side guidance part and the downstream-side guidance part toward the other changes a length in the conveyance direction of a portion where the guidance regions overlap, and
• plural points in a circumferential direction in each of the plural downstream-side guidance members constituting the downstream-side guidance part are fixed to the upstream-side guidance part, and plural points in a circumferential direction in each of the plural upstream-side guidance members constituting the upstream-side guidance part are fixed to the downstream-side guidance part;
• wherein the guidance device further comprises:
• a first fixing member fixed to portions of the plural upstream-side guidance members positioned on a downstream side in the conveyance direction, the first fixing member coupling the plural upstream-side guidance members and being slidably connected to the downstream-side guidance members;
• and
• a second fixing member fixed to portions of the plural downstream-side guidance members positioned on an upstream side in the conveyance direction, the second fixing member coupling the plural downstream-side guidance members and being slidably connected to the upstream-side guidance members,
• wherein the upstream-side guidance members are fixed to the downstream-side guidance members via the first fixing member and the second fixing member, to thereby fix the plural points in the circumferential direction of the upstream-side guidance members to the downstream-side guidance part, and
• the downstream-side guidance members are fixed to the upstream-side guidance members via the first fixing member and the second fixing member, to thereby fix the plural points in the circumferential direction of the downstream-side guidance members to the upstream-side guidance part;
• wherein plural through holes are formed in each of the first fixing member and the second fixing member, the plural through holes being moved along a moving direction when one of the guidance parts moves with respect to the other, and
• each of the plural downstream-side guidance members is passed through each of the through holes in the first fixing member, and each of the plural upstream-side guidance members is passed through each of the through holes in the second fixing member.