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US 10,543,614 B2Granted
Structural butt finger joint for flat boards
OwnerManuel Perez-Romero, Jaime Tarazona-Lizarragainventors
Life of this patent
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Abstract
A structural joint for attaching two boards by their butts, achieving the correct transmission of forces between them by means of a staggered configuration of the butts thereof to increase the contact surface between both boards, allowing the mutual coupling thereof, both being aligned and coplanar, and at least one of the steps of both boards having a finger profile to further increase the contact surface between both boards.
Claims18
A structural butt finger joint for flat boards structural attachment, comprising:
- a first board, with two parallel main faces having the largest surface of the first board, two side faces and two butts at the ends thereof farthest from one another, with a first finger profile formed by a plurality of fingers in at least one of the butts of said first board, said first finger profile perpendicular to the main faces of the first board;
- a second board, with two parallel main faces having the largest surface of the second board, two side faces and two butts at the ends thereof farthest from one another, with a second finger profile, complementary to the first finger profile, formed by a plurality of fingers in at least one of the butts of said second board, said second finger profile perpendicular to the main faces of the second board;
- each of said first and second boards has the corresponding first and second finger profile configured by staggered steps, each step forming an exposed tread plane parallel to the corresponding main faces and a riser perpendicular to the corresponding main faces with a finger profile perpendicular to the corresponding main faces;
- the first board and the second board are uncoupled and configured to be attached in aligned, coplanar, and adjacent position to each other and where a contact surface is generated between the exposed tread planes of the first and second boards and between the finger profiles of the raisers of the first and second boards, on which an adhesive, glue or resins can be applied.
1 more element
A method of construction for the butt joint of flat boards structural attachment by means of structural butt finger joints, comprising:
- obtaining a first board, with two parallel main faces having the largest surface of the first board, two side faces and two butts at the ends thereof farthest from one another, with a first finger profile formed in at least one of the butts thereof, said finger profile being perpendicular to the main faces of the first board;
- obtaining a second board, with two parallel main faces having the largest surface of the second board, two side faces and two butts at the ends thereof farthest from one another, with a second finger profile, complementary to the first finger profile, formed in at least one of the butts thereof, said finger profile being perpendicular to the main faces of the second board;
- each of said first and second boards has been obtained with the corresponding first and second finger profile configured by staggered steps, each step forming an exposed tread plane parallel to the main faces of the board and a riser perpendicular to the corresponding main faces and with a finger profile perpendicular to the corresponding main faces, generating a contact surface between the exposed tread planes of the both first and second boards and between the finger profiles of the raisers of the first and second boards,
- and the method including following steps:
- transporting the first and second board to a construction site;
- aligning the first and second board being flush to each other;
- applying adhesive, glue or resins to the contact surfaces and attaching the contact surface of the first finger profile to the contact surface of the second finger profile keeping said alignment.
4 more elements
Dependencies are inferred from the claim text.