Patent ID: 11911952
Assignee: KIA CORPORATION
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 3:
4. The insulation sheet forming apparatus of claim 2, wherein the upper preforming portion includes:
one or more upper connecting members disposed between the two upper extension members and each having a first side and a second side coupled to the two upper extension members, respectively; and
one or more upper roller members coupled to the one or more upper connecting members and provided to be rotatable about the one or more upper connecting members, respectively, and, wherein the lower preforming portion includes:
one or more lower connecting members disposed between the two lower extension members and each having a first side and a second side coupled to the two lower extension members, respectively; and
one or more lower roller members coupled to the one or more lower connecting members and provided to be rotatable about the one or more lower connecting members, respectively.