# US 10,501,986 B2 · Curtain reel structure for assembling blind cord rapidly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,501,986 B2 - Document ID: US10501986B2 - Status: Granted - Kind: B2 - Application number: 15/989,498 - Filed: 2018-05-25 - Published: 2019-07-18 - Granted: 2019-12-10 - Earliest claimed: 2018-01-18 - Assignees: Chen Tian Co., Ltd. - Applicants: Chen Tian Co., Ltd. - Inventors: Ching-Hsiang Cheng - Web page: https://patentgrep.com/patent/US10501986B2 ## CPC - E06B 9/322: Details of operating devices, e.g. pulleys, brakes, spring drums, drives ({operating devices E06B9/68} ; devices of general interest specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material B65H75/34) - B65H 75/4402: {Guiding arrangements to control paying-out and re-storing of the material (guides per se B65H57/00)} - B65H 75/4471: {Housing enclosing the reel} - E06B 2009/3225: {Arrangements to aid the winding of cords rollers} - E06B 2009/3227: {Axially moving rollers} - E06B: FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES (shades or blinds for greenhouses A01G9/22; curtains A47H; lids for car boots or bonnets B62D25/10; skylights E04B7/18; sunshades, awnings E04F10/00) - B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES ## Abstract A curtain reel structure for assembling a blind cord rapidly is disclosed herein. It mainly comprises a winding spool, a reel seat on which the winding spool is assembled, a first positioning device disposed between the winding spool and the reel seat and having a first chamber and a first sliding seat inserted into the first chamber, wherein the first sliding seat is provided with a first accommodating slot for accommodating the blind cord, and a second positioning device disposed between the winding spool and the reel seat and having a second chamber and a second sliding seat inserted into the second chamber, wherein the second sliding seat is provided with a second accommodating slot for accommodating the blind cord. ## Claims ### Claim 1 A curtain reel structure for assembling a blind cord rapidly, the curtain reel structure comprising: a winding spool; a reel seat on which the winding spool is assembled; a first positioning device disposed between the winding spool and the reel seat and having a first chamber and a first sliding seat, wherein the first chamber is provided with a first opening for allowing insertion of the first sliding seat and a first active channel on the other side thereof for communicating the first chamber with an external, and wherein the first sliding seat is provided with a first accommodating slot for accommodating the blind cord and corresponding to or staggering with the first active channel; a second positioning device disposed between the winding spool and the reel seat for assembling a curtain rail and having a second chamber and a second sliding seat, wherein the second chamber is provided with a second opening for allowing insertion of the second sliding seat and a second active channel on the other side thereof for communicating the second chamber with the external, and wherein the second sliding seat is provided with a second accommodating slot for accommodating the blind cord and corresponding to or staggering with the second active channel, a pull on the blind cord making the first accommodating slot of the first sliding seat and the second accommodating slot of the second sliding seat respectively stagger with the first active channel and the second active channel so as to lock the blind cord. ### Claim 2 (depends on 1) The curtain reel structure for assembling a blind cord rapidly as claimed in claim 1, wherein the winding spool is provided with a first axial part on which the first positioning device is assembled and having an outer rim at one end thereof and a second axial part at the other end thereof, and wherein the first chamber is located on the outer rim and provided with the first opening towards the external and the first active channel disposed on the outer rim. ### Claim 3 (depends on 2) The curtain reel structure for assembling a blind cord rapidly as claimed in claim 2, wherein the reel seat is provided with a first engaging part and a second engaging part above the second positioning device for pivotally connecting the winding spool, and a platform below the second engaging part, and wherein the second chamber is disposed within the platform and having the second opening towards the external and the second active channel disposed at a bottom of the platform. ### Claim 4 (depends on 3) The curtain reel structure for assembling a blind cord rapidly as claimed in claim 3, wherein inner walls of the first chamber and the second chamber are respectively provided with a first engaging unit and a second engaging unit, and wherein the first sliding seat and the second sliding seat are respectively provided with a first and a second joint units and a third and a fourth joint units. ### Claim 5 (depends on 4) The curtain reel structure for assembling a blind cord rapidly as claimed in claim 4, wherein the first engaging unit and the second engaging unit are formed as recessed slots or bumps, and the first and the second joint units and the third and the fourth joint units are formed as bumps or recessed slots respectively corresponding to the first engaging unit and the second engaging unit. ### Claim 6 (depends on 3) The curtain reel structure for assembling a blind cord rapidly as claimed in claim 3, wherein the first engaging part of the reel seat is provided with a removable lock element having a buckle and a flexible member pivotally connected to the removable lock element, and wherein the buckle is further provide with a slot hole for allowing insertion of the first sliding seat for positioning. ### Claim 7 (depends on 2) The curtain reel structure for assembling a blind cord rapidly as claimed in claim 2, wherein inner walls of the first chamber and the second chamber are respectively provided with a first engaging unit and a second engaging unit, and wherein the first sliding seat and the second sliding seat are respectively provided with a first and a second joint units and a third and a fourth joint units. ### Claim 8 (depends on 7) The curtain reel structure for assembling a blind cord rapidly as claimed in claim 7, wherein the first engaging unit and the second engaging unit are formed as recessed slots or bumps, and the first and the second joint units and the third and the fourth joint units are formed as bumps or recessed slots respectively corresponding to the first engaging unit and the second engaging unit.