| 摘要 |
A fastening device for detachably securing together a member, such as a plate member, having a stud rotatably and axially movably mounted therein, and another member which may also be a plate member, and which is provided with one or more detent members adapted to cooperate with one end of the stud. At the other end the stud may for example be provided with a head, which may be similar to a screw head, and a spring member is biasing the stud axially in relation to the plate member in which it is mounted and tends to move the head of the stud away from the associated plate member. The end of the stud adapted to cooperate with the detent members is provided with axially spaced shoulders preferably forming parts of notches into which the said detent members may snap so as to lock the stud, when the stud is moved axially against the force exerted by the spring member. The said shoulders are shaped in such a manner that the stud may be locked merely by depressing the head thereof despite of its angular position, and released by rotating the stud in any direction. |
