| 摘要 |
<p>This invention relates to a shim (23) used in construction work particular building work such as roof construction. The shim is supplied with one or more flanges (7, 8) by side of one of its two surfaces (5, 6). The flange or flanges are placed on and along the sides (3, 4) of the shim. They are lowered or raised from the shim body. When applied in construction work, the flanged shim (23) and the construction part (11) to be supported, adjusted or levelled by the shim form a ridge-and-groove arrangement, where the construction part (11) is a ridge and the flanged shim (23) is a groove. The arrangement prevents the shim from rotating or sliding laterally and thus keeps the shim accurately at the required position in the construction.</p> |
