| 摘要 |
A circular plate with a plurality of apertures therein surrounds a vertical upright member used in constructing a scaffolding. An end of either a horizontal or diagonal spacer member is joined to the upright by a tapered wedge which is passed through the aperture. A wedge support member is secured to the end of the spacer and comprises a pair of parallel legs which straddle the plate. Each of the legs has a slot therein to allow passage of the wedge. A U-shaped tooth depends from the upper leg and is shaped to conform to the perimeter of the aperture in the plate. Both the tooth and the aperture are tapered so that as the wedge is driven into the aperture, the tooth is forced into engagement with the perimeter of the aperture. Engagement between the tooth and the aperture prevents lateral movement of the spacer relative to the upright. Also disclosed is an elongated, hexagonal fitting which extends between abutting ends of two tubular segments of the upright member and maintains a vertical, coaxial orientation of the adjacent segments. The corners of the fitting are rounded and engage the interior of each upright segment to provide support with a minimum of friction.
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