| 摘要 |
The shoe (10) top surface supports the machine and is joined by side surfaces to the bottom one, which bears against the base (6). Two anchoring components engaging in lateral recesses in the shoe secure it to the base, each of them having a clamping strap (24) and an anchor bolt (23). At one end (25) of the strap is a protrusion (27) engaging the shoe recess, while its other end (28) bears against the base. The anchor bolt engages with the strap between its ends, and in the base. The recesses consist of drillings in the shoe sides which are parallel to the underside, while the protrusions consist of trunnions of slightly smaller diameter. Strap dimensions are such that, with the trunnions inserted, the anchor bolts are clear of the shoe periphery and extend into the base at right angles to the shoe underside. The axes of the drillings can be co-linear and at right angles to the shoe sides, while the trunnions protrude at right angles from the straps.
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