# US 10,865,822 B2 · Bent corner furniture connecting piece and a method of making such piece > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,865,822 B2 - Document ID: US10865822B2 - Status: Granted - Kind: B2 - Application number: 15/525,258 - Filed: 2015-11-11 - Published: 2018-10-04 - Granted: 2020-12-15 - Earliest claimed: 2014-11-11 - Assignees: IKEA Supply AG - Applicants: Ikea Supply AG - Inventors: Fredrik Andersson; Lars Paul Andersson - Web page: https://patentgrep.com/patent/US10865822B2 ## CPC - F16B 12/22: using keyhole-shaped slots and pins - A47B 47/042: {Panels connected without frames} - A47B 96/205: {Composite panels, comprising several elements joined together} - F16B 12/02: Joints between panels and corner posts - F16B 12/46: Non-metal corner connections - A47B 47/0025: {Horizontal connecting members adapted to receive and retain the edges of several panel elements} - A47B 47/0066: {Formed panels connected without frames (for panels mainly made of wood or plastic A47B47/042)} - F16B 12/125: {using mortise and tenon joints} - F16B 12/26: using snap-action elements - F16B 2200/67: Rigid angle couplings - F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D) - A47B: TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE (furniture jointing F16B) ## Abstract A bent corner furniture connecting piece (18) comprises a central bent corner section (89) having a first connecting arrangement (93), and a second connecting arrangement (97). The connecting piece (18) comprises a wooden frame (36) comprising a first and a second curved end section piece (26, 28). First and second connecting pieces (30, 32) connect the first and second curved end section pieces (26, 28). The first connecting piece (30) is provided with the first connecting arrangement (93) for connection to a first furniture piece, and the second connecting piece (32) is provided with the second connecting arrangement (97) for connection to a second furniture piece. A bent outer surface layer (64) is arranged on a convex part (74) of said frame (36), and a bent inner surface layer (66) is arranged on a concave part (82) of said frame (36). ## Claims ### Claim 1 A bent corner furniture connecting piece comprising: a central bent corner section, a first connecting arrangement arranged in a first end of the central bent corner section and adapted for connection to a first furniture piece, and a second connecting arrangement arranged in a second end of the central bent corner section, which second end is opposite to the first end, and adapted for connection to a second furniture piece, wherein the first and second connecting arrangements are arranged at an angle of 25-140° to each other, wherein the bent corner furniture connecting piece comprises a wooden frame comprising a first curved end section piece and a second curved end section piece, a first connecting piece connecting the first and second curved end section pieces at respective first ends thereof, and a second connecting piece, which is parallel to the first connecting piece, connecting the first and second curved end section pieces at respective second ends thereof, said second ends being opposite to said first ends of said curved end section pieces, wherein said first connecting piece is provided with at least a part of the first connecting arrangement for connection to a first furniture piece, wherein said second connecting piece is provided with at least a part of the second connecting arrangement for connection to a second furniture piece, wherein a bent outer surface layer is arranged on a convex part of said frame, and wherein a bent inner surface layer is arranged on a concave part of said frame so that the outer surface layer is spaced from the inner surface layer by the first connecting piece, the second connecting piece, the first curved end section, and the second curved end section. ### Claim 2 (depends on 1) A bent corner furniture connecting piece according to claim 1, wherein the first connecting arrangement is arranged for snap-in-connection to the first furniture piece. ### Claim 3 (depends on 2) A bent corner furniture connecting piece according to claim 2, wherein the second connecting arrangement is arranged for snap-in-connection to the second furniture piece. ### Claim 4 (depends on 1) A bent corner furniture connecting piece according claim 1, wherein the first connecting arrangement comprises at least a first connecting device of which at least a part is arranged in the first connecting piece, and wherein the second connecting arrangement comprises at least a first connecting device of which at least a part is arranged in the second connecting piece. ### Claim 5 (depends on 4) A bent corner furniture connecting piece according to claim 4, wherein the first connecting devices of the bent corner furniture connecting piece are arranged for snap-in-connection to the first and second furniture pieces, respectively. ### Claim 6 (depends on 1) A bent corner furniture connecting piece according claim 1, wherein the first and second connecting arrangements are arranged for releasable connection to the first and second furniture pieces, respectively. ### Claim 7 (depends on 1) A bent corner furniture connecting piece according to claim 1, wherein the first and second connecting arrangements of the bent corner furniture connecting piece each comprises one part of a female-and-male connecting arrangement. ### Claim 8 (depends on 7) A bent corner furniture connecting piece according to claim 7, wherein at least the first connecting arrangement of the bent corner furniture connecting piece comprises at least one female part. ### Claim 9 (depends on 1) A bent corner furniture connecting piece according to claim 1, wherein at least the first connecting arrangement of the bent corner furniture connecting piece comprises one part of a key and key hole connecting arrangement. ### Claim 10 (depends on 1) A bent corner furniture connecting piece according to claim 1, wherein the inner and outer surface layers are made from wood or a wooden based material, such as chipboard material, particle board material, MDF board material, HDF board material. ### Claim 11 (depends on 1) A bent corner furniture connecting piece according to claim 1, wherein the bent corner furniture connecting piece has an inner radius of 50 to 150 mm. ### Claim 12 (depends on 1) A bent corner furniture connecting piece according to claim 1, wherein the bent corner furniture connecting piece has a total thickness of 15-50 mm. ### Claim 13 (depends on 1) A bent corner furniture connecting piece according to claim 1, wherein the bent corner furniture connecting piece has a hollow interior space. ### Claim 14 A method of forming a bent corner furniture connecting piece adapted for connection to a first furniture piece and to a second furniture piece in the assembly of a piece of furniture, the method comprising: forming a wooden frame by connecting a first connecting piece to first and second curved end section pieces at respective first ends thereof, and connecting a second connecting piece to the first and second curved end section pieces at respective second ends thereof, applying an outer surface layer on a convex part of said frame, applying an inner surface layer on a concave part of said frame so that the outer surface layer is spaced from the inner surface layer by the first connecting piece, the second connecting piece, the first curved end section, and the second curved end section, arranging at least a first connecting arrangement, adapted for connection to a first furniture piece, at least partly in the first connecting piece, and arranging at least a second connecting arrangement, adapted for connection to a second furniture piece, at least partly in the second connecting piece. ### Claim 15 (depends on 14) A method according to claim 14, wherein the outer and inner surface layers are glued to the frame. ### Claim 16 (depends on 14) A method according to claim 14, wherein said steps of applying an outer surface layer on a convex part of said frame and applying an inner surface layer on a concave part of said frame involves sandwiching the frame between the outer and inner surface layers and pressing the sandwiched structure obtained thereby in a pressing arrangement comprising a die and a stamp. ### Claim 17 (depends on 16) A method according to claim 16, wherein said step of pressing the sandwiched structure further involves heating the sandwiched structure to a temperature in the range of 50-200° C. ### Claim 18 (depends on 16) A method according to claim 16, wherein a layer of glue is applied on the frame and/or on the outer and/or inner surface layers prior to pressing the sandwiched structure. ### Claim 19 (depends on 16) A method according to claim 16, wherein the frame is sandwiched between oversized outer and inner surface layers that are subsequently machined to fit with the frame. ### Claim 20 (depends on 14) A method according to claim 14, wherein said step of arranging at least a first connecting arrangement for connection to a first furniture piece in the first connecting piece includes milling at least one female part at least partly in the first connecting piece. ### Claim 21 A consumer mountable piece of furniture, comprising at least one bent corner furniture connecting piece comprising: a central bent corner section, a first connecting arrangement arranged in a first end of the central bent corner section and adapted for connection to a first furniture piece, and a second connecting arrangement arranged in a second end of the central bent corner section, which second end is opposite to the first end, and adapted for connection to a second furniture piece, wherein the first and second connecting arrangements are arranged at an angle of 25-140° to each other, wherein the bent corner furniture connecting piece comprises a wooden frame comprising a first curved end section piece and a second curved end section piece, a first connecting piece connecting the first and second curved end section pieces at respective first ends thereof, and a second connecting piece, which is parallel to the first connecting piece, connecting the first and second curved end section pieces at respective second ends thereof, said second ends being opposite to said first ends of said curved end section pieces, wherein said first connecting piece is provided with at least a part of the first connecting arrangement for connection to a first furniture piece, wherein said second connecting piece is provided with at least a part of the second connecting arrangement for connection to a second furniture piece, wherein a bent outer surface layer is arranged on a convex part of said frame, and wherein a bent inner surface layer is arranged on a concave part of said frame, and the at least one bent corner furniture connecting piece is manufactured by: forming a wooden frame by connecting a first connecting piece to first and second curved end section pieces at respective first ends thereof, and connecting a second connecting piece to the first and second curved end section pieces at respective second ends thereof, applying an outer surface layer on a convex part of said frame, applying an inner surface layer on a concave part of said frame so that the outer surface layer is spaced from the inner surface layer by the first connecting piece, the second connecting piece, the first curved end section, and the second curved end section, arranging at least a first connecting arrangement, adapted for connection to a first furniture piece, at least partly in the first connecting piece, and arranging at least a second connecting arrangement, adapted for connection to a second furniture piece, at least partly in the second connecting piece, a first furniture piece connectable to the first connecting arrangement of the connecting piece, and a second furniture piece connectable to the second connecting arrangement of the connecting piece.