Vertical sliding window
US11225830B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2018 |
| Grant date | Jan 18, 2022 |
| Priority date | — |
| Expiry date | Aug 29, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/148
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
This application provides a vertical sliding window, including horizontal frame side edges, vertical frame side edges, and an opening sash, wherein the opening sash slides up and down along a guide rail on the vertical frame side edge. In addition, the vertical sliding window further includes a balance weight device and a balance weight traction cable. The balance weight device includes an enclosure, a rotating shaft partially disposed within the enclosure, a spiral spring whose two ends are respectively fixedly connected to an inner wall of the enclosure and the rotating shaft, and a cone pulley fixedly connected to the rotating shaft, wherein a tapered surface of the cone pulley is provided with a spiral groove. A lower end of the balance weight traction cable is fixedly connected to the opening sash, and an upper end thereof is fixedly connected to the cone pulley. When the opening sash moves from bottom to top, an elastic deformational force generated by the spiral spring enables the balance weight traction cable to be gradually wound into the spiral groove, and the elastic deformational force of the spiral spring is gradually reduced. Due to a mutual conversion between elastic…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.