초록 ▼

A wooden stair rail assembly having a wooden handrail, a wooden shoe rail, and wooden balusters, is provided with a limited range of movement from about 29 degrees to 43 degrees, to accommodate the normal range of variations in the inclination or pitch of stairways. The ends of the balusters are pro

A wooden stair rail assembly having a wooden handrail, a wooden shoe rail, and wooden balusters, is provided with a limited range of movement from about 29 degrees to 43 degrees, to accommodate the normal range of variations in the inclination or pitch of stairways. The ends of the balusters are provided with axially extending pins which engage the handrail and the shoe rail. The handrail and the shoe rail are provided with recesses into which the ends of the balusters extend, and clearance between the balusters and the rails is provided to permit the pins to flex so that the balusters may remain vertical despite the change in inclination of the handrail and the shoe rail. The pins are of high strength material having a low elastic limit and the quality of remaining deformed after having been bent, so that the assembly will retain its “racked”configuration once it has been shifted to the desired angle of inclination. Polyvinyl chloride plastic provides suitable mechanical properties for the dowels or pins. A thermo-setting glue, and additional wood fillets which may be positioned in longitudinally extending recesses, particularly in the shoe rail, complete the mechanical assembly, apart from the newel posts at the ends of the stair rail.

대표청구항 ▼

A stair rail assembly which may be varied in its mounting angle from a neutral orientation of approximately 36 degrees by a predetermined angle up to about 10 degrees in either direction comprising: a wooden handrail, a wooden shoe rail, wooden balusters extending between said handrail and said shoe

A stair rail assembly which may be varied in its mounting angle from a neutral orientation of approximately 36 degrees by a predetermined angle up to about 10 degrees in either direction comprising: a wooden handrail, a wooden shoe rail, wooden balusters extending between said handrail and said shoe rail, means, including a pin extending into each end surface of each said baluster and into said shoe and handrails, for securing said balusters to said shoe and handrails, said pins having their longitudinal axis extending generally parallel to a vertical plane and to the plane of the overall stair rail assembly; said pins being of high strength, having a very low elastic limit, and being permanently deformed when bent; said handrail and said shoe rail being provided with recesses for receiving the ends of said balusters, and having additional holes at the bottoms of said recesses for receiving said pins; and means for mounting said ends of said balusters in said recesses with clearance permitting angular movement of said balusters in said recesses and relative to said hand and shoe rails by said predetermined angle; whereby said assembly may be racked to a different mechanically stable inclination within said predetermined angle, with said balusters remaining vertical, with said pins holding their new orientation, and with said recesses substantially concealing the small angular displacement of the ends of said balusters relative to said rails.