초록 ▼

A fastening apparatus operable to secure a pair of work objects to each other and wherein one of the work objects mounts an engagement member, the fastening apparatus having a mount adapted for attachment on the other of said work objects in substantially a predetermined position; and a grasping ass

A fastening apparatus operable to secure a pair of work objects to each other and wherein one of the work objects mounts an engagement member, the fastening apparatus having a mount adapted for attachment on the other of said work objects in substantially a predetermined position; and a grasping assembly borne by the mount and operable to expand upon movement of said engagement member therewithin and subsequently to contract for engagement with said engagement member to interlock the work objects.

대표청구항 ▼

A fastening apparatus operable releasably to secure a closure in a closed position on the case of a vending machine or the like, the fastening apparatus comprising: A. a securing bolt having a longitudinal axis and adapted to be mounted on the closure for substantially rotational movement about said

A fastening apparatus operable releasably to secure a closure in a closed position on the case of a vending machine or the like, the fastening apparatus comprising: A. a securing bolt having a longitudinal axis and adapted to be mounted on the closure for substantially rotational movement about said longitudinal axis and having a distal end portion about which are formed male screw threads; B. a bracket, having at least one hole therein adapted to be mounted on the case of the vending machine in substantial alignment with the position of the distal end portion of the securing bolt when the closure is in said closed position; C. a housing mounted on the bracket having an entry surface convergent upon an opening communicating with an internal chamber within the housing, said chamber bounded by a cam surface convergent in the direction of said opening and said housing having at least one boss of sufficiently smaller diameter than said hole of the bracket to extend through said hole and permit lateral movement of the housing on the bracket and attachment means secured on the distal end of the boss to prevent said boss from being drawn outwardly through said hole; D. three grasping segments received in the chamber of the housing, each of said segments being transversely arcuate and having lateral shoulder portions, said segments being positionable in a first position with said segments transversely forming a substantially circular configuration with the lateral shoulders of adjacent segments in juxtaposition forming a passage therethrough in substantial alignment with said opening of the housing and said segments having outer surfaces convergent in the direction of said opening and in juxtaposition to the cam surface of the housing and inner surfaces which in said first position match to form female screw threads bounding said passage; and E. a compression spring captured in the housing in engagement with said segments resiliently to retain said segments in the first position whereby when the closure is moved to said closed position the securing bolt passes through said opening and into the passage formed by the segments in said first position to force said segments inwardly of the housing from the first position and from each other along the cam surface to penetrate the passage and said compression spring urges the female screw threads thereof into screw threadable engagement with said male screw threads of the securing bolt.