Joining device for conveyor belts and method

A method for joining conveyor belts, comprising:

• providing a joining device having generally an H profile lateral shape, a central part of which, corresponding to the bar of the H profile, is extended by two pairs of arms forming the branches of the H profile, the arms having in the longitudinal direction an extension several times longer than the space between two parallel arms and located on the same side of the central part, the central part as well as the arms being made up of a flexible and elastic material, the flexibility and elasticity of which are close to those of the constituent material of the conveyor belts, comprising
• flexible reinforcement means extending in the arms and in the central part, wherein the reinforcement means present a certain elasticity and
• means for the reinforcement means to yield themselves longitudinally up to a certain limit, when submitted to forces acting in the longitudinal direction, and for being brought back to their initial dimension by the constituent elastic material of the joining device, when these forces are decreasing;
• milling recesses at the locations selected by the user for the setting in position of the fastening means with stems;
• setting in position the fastening means with stems;
• the said recesses being provided for receiving the heads of the fastening means with round and large head stems.

A method for joining conveyor belts, comprising:

• providing a joining device having generally an H profile lateral shape, a central part of which, corresponding to the bar of the H profile, is extended by two pairs of arms forming the branches of the H profile, the arms having in the longitudinal direction an extension several times longer than the space between two parallel arms and located on the same side of the central part, the central part as well as the arms being made up of a flexible and elastic material, the flexibility and elasticity of which are close to those of the constituent material of the conveyor belts, comprising
• flexible reinforcement means extending in the arms and in the central part, wherein the reinforcement means present a certain elasticity and
• means for the reinforcement means to yield themselves longitudinally up to a certain limit, when submitted to forces acting in the longitudinal direction, and for being brought back to their initial dimension by the constituent elastic material of the joining device, when these forces are decreasing;
• milling recesses, prior to the setting of the fastening means with stems, in locations selected by the user for setting the fastening means with stems, the recesses being provided for receiving washers comprising through holes,
• setting washers with through holes in the recesses;
• setting in position fastening means with stems are further on;
• the depth of the milled recesses being at least equal to the thickness of the washers increased by the height of the fastening means head.