US 2002/0159819 A1Published application

Glue stick

AssigneeUHU GmbH

InventorsWilhelm Werhahn, Werner Panter, Hans-Martin Kapsa

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Abstract

In the outer sleeve there runs a threaded spindle which is mounted in a bearing sleeve (5) and on which a piston (30) is movable up and down. The outer sleeve (1) is in relation to its inner diameter Ad considerably longer than with known glue sticks. The ratio of the inner diameter Ad of the outer sleeve (1) to the length AL of the part of the outer sleeve which serves for receiving a rod-like adhesive mass (10) here lies in the region of 1:6 to 1:15. This however according to the invention demands that the threaded spindle is configured such that it simultaneously serves as a conveyor worm. Thanks to the special configuration of the piston (30) is spite of the great length of the threaded spindle there is achieved a bending-breakage stabilisation.

Claims12

Dependent claims

A glue stick with an outer sleeve open at least on one side, for receiving a rod-like adhesive mass, in said glue stick there being located a threaded spindle connected to a rotary cap which is arranged on one side and which is in interactive connection with the threaded spindle, wherein on the threaded spindle there runs a piston which with respect to the outer sleeve is rotationally secured so that a rotary actuation of the rotary cap effects an axial displacement of the piston, and wherein the ratio of the inner diameter Ad of the outer sleeve to the length AL Of the part of the outer sleeve which serves for receiving a rod-like adhesive mass lies in the region of 1:6 to 1:15 and the threaded spindle is simultaneously configured as a conveyor worm in order to transport in an advancing or retreating manner the rod-like adhesive mass in the outer sleeve.

Dependencies are inferred from the claim text.