Portable bleacher with active descent and lift mechanism

摘要

A portable bleacher seating structure includes an active descent and lift mechanism that includes a placement assembly having an arm and an arm wheel at a distal end thereof. A bracket connects the arm to a gas spring. The pressure within the gas spring opposes the arm as the bleacher is positioned in order to control the descent of the bleacher as it is tipped into position.

主权项

1. A bleacher seating structure, comprising:
a tiered seating assembly comprising a seating portion; and an active placement mechanism mounted on the seating assembly, wherein the active placement mechanism comprises:
a bracket having a first bracket pivot point, the bracket pivotably mounted on the seating assembly at the first bracket pivot point;a support arm having a first end pivotably connected at the first bracket pivot point of the bracket; anda biasing structure connected to the bracket and to the seating assembly.