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Dispensing Device

a technology for dispensing devices and cartridges, applied in the direction of instruments, apparatus for dispensing discrete objects, de-stacking articles, etc., can solve the problems of corresponding high pressure on the cartridge, complicated operation, and strong hand for

Inactive Publication Date: 2012-11-15
HILTI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a dispensing device for extruding cartridges with a piston rod and a manually-driven feed mechanism. The device has an operating lever that is moved against a holding lever to squeeze in an extrusion direction, and a retaining mechanism that engages with the piston rod to prevent movement of the piston rod against the feed direction. An unlocking mechanism is provided that engages with the retaining mechanism and releases it, wherein the unlocking mechanism may couple with the operating lever so that a movement of the operating lever in the extrusion direction releases the retaining mechanism. The technical effect of this invention is to provide a convenient and efficient dispensing device for extruding cartridges with a piston rod and a manually-driven feed mechanism.

Problems solved by technology

This operation is often very complicated because the operator has to change the position of his grip on the dispensing device and thus must, for example, release the holding lever of the dispensing device.
In addition, a strong hand force is required, especially in the case of viscous materials, and a corresponding high pressure on the cartridge in order to operate the unlocking mechanism.

Method used

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Embodiment Construction

[0013]One or more embodiments of the invention provide a dispensing device, which allows easier operation of the unlocking mechanism as well as operation using a smaller hand force.

[0014]In operation, a dispensing device for cartridges is used with a piston rod and, preferably, a manually-driven feed mechanism, whereby the feed mechanism has an operating lever that may be pressed against a retaining lever in a pressing direction, and with a holding mechanism which engages with the piston rod and prevents movement of the piston rod against the feed direction R; an unlocking mechanism is provided that engages with the retaining mechanism and may release this, whereby the unlocking mechanism may be so coupled with the operating lever that the retaining mechanism is released by a movement of the operating lever in the extrusion direction.

[0015]Thus no operating element is provided to release the unlocking mechanism and via which the release force on the unlocking mechanism and thus on t...

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PUM

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Abstract

In a dispensing device for extruding cartridges, with a piston rod and a preferably manually-driven feed mechanism, whereby the feed mechanism has an operating lever, that is moved against a holding lever for squeezing in an extrusion direction (A), and a retaining mechanism that engages with the piston rod to prevent movement of the piston rod against the feed direction (R), it is envisaged that an unlocking mechanism is provided that engages with the retaining mechanism and releases this, whereby the unlocking mechanism may be so selectively coupled with the operating lever that a movement of the operating lever in the extrusion direction (A) releases the retaining mechanism.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application claims priority to German Patent Application DE 10 2011 004 971.1 filed Mar. 2, 2011, and entitled “Auspressgerat” (“Dispensing Device”), which is hereby incorporated by reference in its entirety.BACKGROUND OF THE INVENTION[0002]The present invention relates to a dispensing device for extruding cartridges, with a piston rod and a preferably manually-driven feed mechanism, wherein the feed mechanism has an operating lever that may be moved against a holding lever for extrusion from a dispensing device, and where there is a retaining mechanism that engages with the piston rod to prevent movement of the piston rod against the feed direction R.[0003]Such dispensing devices are used for example in the construction industry for the extrusion of cartridges that are filled with silicone or another liquid or viscous material. These cartridges usually have a cylindrical body with a discharge port in a front wall. The opposin...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D83/00
CPCB05C17/0126
Inventor STROBEL-SCHMIDT, RAINERHEFELE, CHRISTIANOSTERMEIER, PETERLEDERLE, HANS PETER
Owner HILTI AG