Patent ID: 8439339

Claim:
Clamp, comprising: a slide rail; a fixed arm integrally joined to the slide rail; and a slide arm movable on the slide rail; wherein: the slide rail has in a cross section an overall height and an overall width having a ratio to each other of at least 2.6:1 and not greater than 2.8:1; the slide rail is waisted in the cross section and has a first region, at which the slide rail has a maximum width in the cross section, a second region, which follows the first region, and a third region, which is a waist region, and in which the slide rail has a minimum width in the cross section, the second region being an intermediate region whose width is between the maximum width and the minimum width; the slide rail has a constant profile cross section throughout a length of the slide rail, an end of the slide rail having an identical profile cross-section as an end of the fixed arm; the waist region has a planar surface; an enveloping surface of the slide rail at an outer side and/or an inner side is a cylinder; and a radius of the cylinder is the overall height.