| 摘要 |
A marking light, or an attaching-position indicator, for a buttoning apparatus to indicate the position where each button member is to be attached in place, comprises a slender optical pointer member, engaging means secured to the rear end of the optical pointer member for selective engagement with a part of a pusher of the buttoning apparatus, a fixing member for the indicator including a support having means to support the front end portion of the pointer member so as to be movable back and forth with respect to a position immediately below an upper attaching die of the apparatus, release means connected to the engaging means for disengaging the engaging means from a part of the pusher, and means for biasing the pointer member in the direction of withdrawal clear of the upper attaching die. The support is equipped with a resilient engaging means fixed at one end to the fixing member and so disposed as to engage resiliently a part of the support at the other end. The fixing member and the optical pointer member are further provided with a contact member each, located so that the contact members come in contact with each other at the point where the pointer member has advanced toward the plunger in response to the upward movement of the upper attaching die of the apparatus. |
