| 摘要 |
A disposable cartridge (2) for an ear piercing apparatus comprises a clasp-holding member (6) provided with means for holding a clasp (9,10) of a stud assembly, and a stud-holding member (7) provided with means (13,14) for holding a stud of a stud assembly. One of the members has a guide formation (11) which co-operates with a complementary guide formation (21) provided on the other member so as to enable relative movement to occur between the two members in a direction parallel to the direction of the axis of a stud held in the stud-holding member (7). A first of the members (6) has a first stop means (23) which co-operates with second stop means (24) provided on the second. of the members (7) so as to prevent the members moving towards each other closer than a predetermined distance defined by the stop means at least during installation of the cartridge into the gun to enable an ear lobe to be inserted between the stud and the clasp. The first stop means (23) is frangible upon a pre-firing operation of the gun to allow the stop means to move beyond each other and the two members to move together closer than the predetermined distance in order to locate the ear lobe during a firing operation of the gun.
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