| 摘要 |
a. Locking device for strings and ribbons for closing parcels. b. Characterised in that, in the vicinity of the upper mouth of the cylindrical casing 1 there are provided orifices 4 coaxial with the mouth such that, during the insertion of the piston 3 into the cylinder, a diametral piercing 9 of the piston 3 comes into alignment with these orifices 4 of the cylinder, allowing the threading of a loop of the closing string, which will be compressed and locked when the piston 3, released from its initial engagement pressure, will be pushed upwards under the effect of the expansion of the coil spring 7. c. The invention applies to a device for locking or closing bags or similar. <IMAGE>
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