| 摘要 |
An ear tag has a substantially planar shank (1) with an elongate axis and an upstanding male member (2) at one end receivable through an aperture (4) at the other end when the shank is caused to bend. The ear tag is provided with means to encourage hinging about at least one hinging region and with means formed as part of the shank which act to favour arching of the shank to thereby reduce the arcuate locus of the male member relative to the aperture when the male member is being moved towards and into the aperture. Preferably the hinging region includes a plurality of regions of reduced shank section the, e.g. interrupted grooving passing through one side of the planar shank, the interrupted sections being the means which act to favour arching. The applicator gun envisages the cartridge loading of staggernested ear tags thereinto for sequential application to animals' ears. The gun comprises a magazine (11), a spring (13) acting on a member (12) to bias the tags in the magazine towards the discharge region thereof, loading means (21) operative to remove a tag from the magazine, receiving means (21, 23) for receiving an ear tag removed from the magazine and presenting it in folded condition with the upstanding male member disposed towards the aperture, and actuating means (21) to pass the male member through the aperture to locate the tag on the animal's ear. <IMAGE> |
