초록 ▼

A dosing gun consists substantially of a housing having a trigger device with a trigger lever, with which a piston arranged on a piston rod can be operated evenly by a spring, which spring is initially compressed by a use of the trigger lever and a band brake. For this purpose a cord, which can be w

A dosing gun consists substantially of a housing having a trigger device with a trigger lever, with which a piston arranged on a piston rod can be operated evenly by a spring, which spring is initially compressed by a use of the trigger lever and a band brake. For this purpose a cord, which can be wound up onto a cord drum, is secured to an end of the piston rod. A brake drum which is secured an a drive shaft and can be operated by a brake band, is arranged in one piece on the cord drum. With the hand wheel mounted on a left side of the drive shaft, it is possible to wind the cord onto the cord drum and to compress the spring.

대표청구항 ▼

A dosing gun for liquids and pastes, comprising: a housing having a trigger device with a trigger lever, with which and through repeated operations thereof a piston rod mechanically linked to said trigger level and having a piston thereon is supported for movement in an axial direction so that a car

A dosing gun for liquids and pastes, comprising: a housing having a trigger device with a trigger lever, with which and through repeated operations thereof a piston rod mechanically linked to said trigger level and having a piston thereon is supported for movement in an axial direction so that a cartridge filled with a liquid or paste can be emptied through a discharge nozzle, said housing having a housing part in which is provided said piston rod, a spring in said housing part for continuously urging said piston axially toward said discharge nozzle of the housing, first means which includes a cord drum for providing said spring with an initial amount of compression causes by a movement of said piston against the spring, second means for controlling the release of said initial amount of compression, said second means including a band brake operatively connected to said cord drum and selectively releasable by said trigger level, said first means including, for providing the spring with the initial amount of compression, a cord connected at one end to one end of the piston rod, another end of said cord being wound up onto said cord drum, guide means for guiding a portion of said cord that extends between said cord drum and said piston rod, said second means further including third means operatively connected to the trigger device and movable so as to apply a force to said portion of said cord in response to a release of said trigger device, which force is sufficient to retract said piston against the urging of said spring to prevent an urging of paste or liquid out through said discharge nozzle when no operative force is applied to the trigger device.