| 摘要 |
<p>1. Device for manually dispensing and metering pasty products, comprising a flexible tube (10) between a product tank (1) and a discharge nozzle (11), the flexible tube (10) and the discharge nozzle (11) being fitted in a receptacle (14) extending through the body (13) of the device, with means of laying a shut-off roller (25) and a dispensing roller (19) alternately against the flexible tube, with the said tube being compressed locally, the said dispensing roller (19) also being subjected to a slight movement along the tube, in order to advance a metered quantity of product towards the discharge, characterized in that the discharge nozzle (11), the flexible tube (10) and the product tank (1) are in the form of a complete interchangeable assembly, with means (6) of fastening the tank (1) quickly to the body (13) of the device, and in that the mechanism operating the shut-off roller (25) and dispensing roller (19) comprises, on the one hand, connecting means (31) ensuring the alternating movement of the rollers (25, 19) for dispensing and metering, whilst at the same time allowing the said rollers to be detracted out of the receptable (14) in the device body for the purpose of prolonged rest or a change of the complete assembly, and, on the other hand, means (17, 47) for keeping the two rollers (25, 19) in the retracted position at the same time.</p> |
