Door

Abstract

A gate with a gate leaf movable during an opening movement from a closed position, in which it closes a wall opening, to an open position in which it at least partially releases the wall opening, wherein the center of gravity of the gate leaf is raised against the force of gravity during the opening movement, a counterweight compensating device supporting the opening movement with a torsion spring having a spring wire helically circulating a torsion axis extending substantially in a horizontal direction, and a coupling device coupled on one side to the gate leaf and on the other side to the torsion spring for tensioning the torsion spring during the closing movement of the gate leaf from the open position to the closed position by converting potential energy into spring energy, wherein the lifting dimension H = n∗d∗D / L of at least one torsion spring is 150 mm or more, in particular 160 mm or more, preferably 170 mm or more.but less than 250 mm, where n is the number of turns of the torsion spring, L is the length of the torsion spring, D is the inner diameter of the torsion spring, and d is the diameter of the spring wire.

Claims

1. A gate with a gate leaf that, during an opening movement, moves from a closed position in which it closes a wall opening to an open position in which it at least partially opens the wall opening, wherein the center of gravity of the gate leaf is raised against the force of gravity during the opening movement, a counterweight device supporting the opening movement with a torsion spring having a spring wire helically circulating around a torsion axis extending substantially in a horizontal direction, and a coupling device coupled on one side to the gate leaf and on the other side to the torsion spring for tensioning the torsion spring during the closing movement of the gate leaf from the open position to the closed position by converting potential energy into spring energy. characterized by the fact that the lifting dimension H = n * d * D / L at least one torsion spring is 150 mm or more, in particular 160 mm or more, preferably 170 mm or more, but less than 250 mm, where n is the number of turns of the torsion spring, L is the length of the torsion spring, D is the inner diameter of the torsion spring and d is the diameter of the spring wire.

2. Gate according to claim 1, characterized by the fact that the inner diameter of the torsion spring is 155 mm or more, in particular 165 mm or more, preferably 175 mm or more, particularly preferably 180 mm or more, but 250 mm or less, in particular less than 200 mm.

3. Gate according to claim 1 or 2, characterized by the fact that the diameter of the spring wire is 15 mm or less, in particular 12 mm or less, but 6 mm or more, in particular 8 mm or more, preferably 10 mm or more.

4. Gate according to one of the preceding claims, characterized bya stabilizing element incorporated in the torsion spring, such as a stabilizing tube, wherein the ratio of the inner diameter of the torsion spring to the outer diameter of the stabilizing tube is 1.1 or greater, in particular 1.2 or greater, but less than 1.

5.

5. Gate according to claim 4, characterized by the fact that the ratio of the wall thickness of the stabilizing tube to the diameter of the spring wire is greater than 0.2, in particular greater than 0.

3.

6. Gate according to one of the preceding claims, characterized bya guide rail arrangement for guiding the gate leaf movement, comprising a first guide rail section extending approximately parallel to the lateral edge of the gate leaf in the closed position and running approximately in a straight line, a second guide rail section extending approximately parallel to the lateral edge of the gate leaf in the open position and running approximately in a straight line, and an arc-shaped guide rail section connecting the two approximately straight sections.

7. Gate according to claim 6, characterized by the fact that the torsion spring is located above the upper end of the first approximately straight section and / or in the area of ​​the end of the second approximately straight section that is opposite the curved section.

8. Gate according to one of the preceding claims, characterized by the fact thatthe gate leaf has a plurality of gate leaf members that are articulated with respect to joint axes running approximately perpendicular to the direction of gate leaf movement.

9. Gate according to one of the preceding claims, characterized by the fact that The coupling device has a traction element coupled to the gate leaf, which is unwound from a traction element storage unit during a closing movement of the gate leaf, whereby a rotation of the traction element storage unit is transferred to one end of the spring wire, the other end of which is fixed.

10. Gate according to one of the preceding claims, characterized by two torsion springs arranged side by side in the direction of the torsion axis, each of which is coupled to the gate leaf via a tensioning element.