| 摘要 |
<p>The insulating strip (11) is joined to the lengthwise edges of the metal profiles and is positioned between the metal profiles (5,6). The shear strength in all the lengthwise connecting parts between the outer metal profile (6) and the insulating strips may be low, whereas the shear strength between the inner metal profile and the insulating strips may be high. The slide-ways could have guide surfaces (14,15) at right angles to the centre axis (16) of the insulating strip. The insulating strip(s) may be mounted in a back-tapered guide groove (18) defined by the metal profile's edge strips (19,20) which in turn can define a lengthwise opening (21) through which one arm (22) of a guide extension arm (13) extends. The extension arm can be integral with a cylindrical guide part (17) gripping behind the edge strips.</p> |
