发明名称 |
Mobile Folding Choral Riser with High-Speed Cylinder Lift-Assist Mechanism and Partially Independent Back Railing Linkage |
摘要 |
The present invention provides a mobile folding choral riser having lift-assist and stability mechanisms. In particular, the choral riser includes a gas cylinder that provides a force tending to extend the cylinder to assist in folding the riser into a storage position, the cylinder providing substantially no force to resist rapid extension thereof. In addition, the choral riser preferably includes a back railing linkage that permits independent raising and lowering of a back railing member when the choral riser is in a use or partially folded position but constrains the back railing member to a raised position when the choral riser is in an at least substantially fully folded position.
|
申请公布号 |
US2013255163(A1) |
申请公布日期 |
2013.10.03 |
申请号 |
US201313856319 |
申请日期 |
2013.04.03 |
申请人 |
AMTAB MANUFACTURING CORPORATION |
发明人 |
RIVERA, JR. JEREMIAS C.;SAMIKKANNU DOSS;HANUSIAK GREGORY;FERRARINI ZELIO |
分类号 |
E04H3/28 |
主分类号 |
E04H3/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|