# US 2019/0169899 A1 · Sliding door partition wall system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0169899 A1 - Document ID: US20190169899A1 - Status: Published application - Kind: A1 - Application number: 16/210,910 - Filed: 2018-12-05 - Published: 2019-06-06 - Earliest claimed: 2017-12-06 - Assignees: International Office Concept S.P.A. - Applicants: International Office Concept S.P.A. - Inventors: KRZYSZTOF MIKSZA - Web page: https://patentgrep.com/patent/US20190169899A1 ## CPC - E05D 15/08: consisting of two or more independent parts movable each in its own guides - E04B 2/827: {Partitions constituted of sliding panels} - E05F 11/54: for doors - E06B 3/4636: {for doors (E06B3/4609 and E06B3/4654 - E06B3/4681 take precedence; sliding shower doors A47K3/34)} - E06B 3/922: {with several wings opening horizontally towards the same side of the opening and each closing a separate part of the opening (E06B3/921 and E06B3/928 take precedence)} - E05Y 2900/132: Doors - E05Y 2900/142: Partition walls - E05D: HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS (pivotal connections in general F16C11/00) - E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001}) - E05F: DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING - 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) - E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF ## Abstract A sliding door partition wall system, comprising: a plurality of mobile doors (2) telescopically between an opening condition in which they are mutually overlapped and arranged near a reference wall (6) and an opening condition in which they extend along a movement direction (A); at least one fixed door (3), stably arranged near the reference wall (6) and on which the mobile doors (2) overlap in the respective opening condition; said doors (2, 3) having respective peripheral frames (4); and a positioning element (9) of the mobile doors (2), configured to constraint each mobile door (2) along a direction (B) perpendicular to the movement direction (A), and to define an alignment condition of the frames (4) of the mobile doors (2) to the frame (4) of the fixed door (3) in said opening condition. ## Claims ### Claim 1 A sliding door partition wall system, comprising: a plurality of telescopically mobile doors (2) between an opening condition in which they are mutually overlapped and arranged near a reference wall (6) and an opening condition in which they extend along a movement direction (A); at least one fixed door (3), stably arranged near the wall of reference (6) and on which the mobile doors (2) overlap in the respective opening condition; said doors (2, 3) having respective peripheral frames (4); characterised in that it further comprises a positioning element (9) of the mobile doors (2), configured to constrain each mobile door (2) along a direction (B) perpendicular to the movement direction (A), and to define an alignment condition of the frames (4) of the mobile doors (2) to the frame (4) of the fixed door (3) in said opening condition. ### Claim 2 (depends on 1) A system according to claim 1, characterised in that said positioning element (9) of the mobile doors (2) comprises for each mobile door (2) at least one lower carriage (10) sliding by rolling friction on a respective guide (11) extending along the movement direction (A); said frame (4) of each mobile door (2) having a lower horizontal cross member (8b) defining said guide (11). ### Claim 3 (depends on 2) A system according to claim 2, characterised in that said lower carriage (10) comprises: a base portion (16) having a surface (16a) facing said guide (11); a rotation pin (17) emerging from said surface (16a) and extending within the guide (11); and rolling means (18) operatively associated with the pin (17) to slide on at least one wall (13, 14) of said guide (11). ### Claim 4 (depends on 3) A system according to claim 3, characterised in that said guide (11) comprises a longitudinal groove (12) formed on said lower cross member (8b) and defining an access opening (12a) of the pin (17) facing downwards and a pair of side walls (13, 14) facing each other and spaced apart from each other to define a containment section of the pin (17) of variable size. ### Claim 5 (depends on 4) A system according to claim 4, characterised in that said containment section has a larger first area (S1) next to the base portion (16) and a narrower second area (S2) distal from said base portion (16); said rolling means (18) comprising a first roller (18a) mounted idle on the pin (17) and arranged in said first area (S1), and a second roller (18b) mounted idle on the pin (17) and arranged in said second area (S2). ### Claim 6 (depends on 5) A system according to claim 5, characterised in that said first roller (18a) is slidingly associated to a first wall (13) of said side walls and spaced apart from the second side wall (14) to rotate around the pin (17), and in that said second roller (18b) is slidingly associated to the second side wall (14) and spaced apart from the first wall (13) to rotate around the pin (17). ### Claim 7 (depends on 6) A system according to claim 6, characterised in that said second wall (14) comprises a cantilever (15) at said second area (S2), said second roller (18b) sliding on said cantilever (15). ### Claim 8 (depends on 5) A system according to claim 5, characterised in that said first roller (18a) has a diameter larger than that of the second roller (18b); said rollers (18a, 18b) being mutually overlapped on said pin (17). ### Claim 9 (depends on 3) A system according to claim 3, characterised in that each base portion (16) is engaged to the lower cross member (8b) of the door (2) adjacent to the one in which the respective pin is housed (17). ### Claim 10 (depends on 1) A system according to claim 1, characterised in that it further comprises connection means (21) for moving the mobile doors (2) to move simultaneously the mobile doors (2) between the respective opening/closing conditions; said positioning element (9) of the mobile doors (2) comprising a spacer element (20) extending at least from said fixed door (3) and interposed between the frame (4) of the fixed door (3) itself and the reference wall (6). ### Claim 11 (depends on 10) A system according to claim 10, characterised in that said spacer element (20) defines an end-of-stroke position of said mobile doors (2) in the respective opening conditions, in which they are distanced from said reference wall (6) with a gap (D) defined by the length of said element (20). ### Claim 12 (depends on 11) A system according to claim 11, characterised in that said connection means (21) extend at least partially beyond the width of the mobile doors (2) defined between the respective uprights (7a, 7b) of each frame (4); said connection means (21) being contained, in the opening condition, at least partially in said gap (D) defined by the spacer element (20). ### Claim 13 (depends on 12) A system according to claim 12, characterised in that said connection means (21) comprise at least a front pulley (22a) and a rear pulley (22b), placed on the sides of the door (2) with respect to the movement direction (A), and a belt (23) operatively engaged to said pulleys (22s, 22b); said rear pulley (22b) being disposed in said gap (D), defined by the spacer element (20) in the opening condition of the mobile doors (2). ### Claim 14 (depends on 13) A system according to claim 13, characterised in that said connection means (21) comprise a plurality of front (22a) and rear pulleys (22b) associated to the respective mobile doors (2), and a belt (23) which connects said pulleys (22a, 22b) to each other; said rear pulleys (22b) being all disposed in said gap (D), defined by the spacer element (20) in the opening condition of the mobile doors (2). ### Claim 15 (depends on 10) A system according to claim 10, characterised in that each frame (4) has a first vertical upright (7a), near the reference wall (6), and a second vertical upright (7b), distal from said reference wall (6); said uprights (7a, 7b) being mutually aligned in said opening condition and said closing condition. ### Claim 16 (depends on 10) A system according to claim 10, characterised in that said vertical uprights (7a, 7b) of the doors (2, 3) have a thickness (C) in the range from 16 mm to 20 mm; said thickness (C) defining an alignment value between the uprights in the respective closing and opening conditions.