Patent ID: 9729023
Date: 2017-08-08
CPC Classifications: B26B,F16J,H02K

Claim:
1. An electromotive unit of a small-size electrical appliance, comprising: a drive source; a case containing the drive source; a movable element connected to the drive source and reciprocatingly driven with respect to the case; and a sealing material sealing a gap between the movable element and an opening of the case, wherein the sealing material includes a contact portion contacting the movable element, and a recessed portion formed around the contact portion, the recessed portion having a groove facing an outside of the case, and elastically deformable according to reciprocating movement of the movable element, the sealing material further includes an intermediate portion formed between the contact portion and the recessed portion, and the intermediate portion includes a reinforcing portion disposed outside a path of the reciprocating movement of the movable element and reinforcing the contact portion, and an ordinary portion disposed on the path of the reciprocating movement of the movable element and configured to be more deformable than the reinforcing portion.