| 摘要 |
A vibration welding apparatus and a vibration welding method in which the weight of a vibrating member is reduced and large synthetic resin members can be vibration welded. A vibration welding apparatus for joining two synthetic resin members, such as vehicular lamp lens members, through vibration welding is provided with a vibration generating mechanism, a vibrating member vibrated in a predetermined direction by the vibration generating mechanism, a base, a fixed-side jig disposed on the base for holding a first synthetic resin member, a holding jig composed of a holding jig part fixed to the vibrating member, and a holding part slidably mounted on the base so as to be slidable in the direction of vibration of the vibrating member such that the second synthetic resin member vibrates synchronously with the vibrating member.
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