US 11,731,458 B2
Solid tire provided with cushioning holes
Mario Sgreccia, Marino (IT); Stefano Lobene, Colonnella (IT); Gianluca Meloro, Guidonia Montecelio (IT); Gianni Agametti, Ripi (IT); and Gianluca Abbati, Colleferro (IT)
Assigned to TRELLEBORG WHEEL SYSTEMS ITALIA S.P.A.
Appl. No. 16/982,652
Filed by TRELLEBORG WHEEL SYSTEMS ITALIA S.P.A., Tivoli-Villa Adriana (IT)
PCT Filed Mar. 23, 2018, PCT No. PCT/IT2018/000044
§ 371(c)(1), (2) Date Sep. 21, 2020,
PCT Pub. No. WO2019/180750, PCT Pub. Date Sep. 26, 2019.
Prior Publication US 2021/0178815 A1, Jun. 17, 2021
Int. Cl. B60C 7/10 (2006.01)
CPC B60C 7/107 (2021.08) [B60C 7/10 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A resilient tyre (1, 1a, 1b, 1c, 1d) designed to be used on industrial and construction machinery, said resilient tyre (1, 1a, 1b, 1c, 1d) comprising a plurality of circular layers of elastic material set on top of one another in the radial direction, said layers forming, proceeding from the centre of the resilient tyre (1, 1a, 1b, 1c, 1d) towards the periphery, an inner portion referred to as base (2), an outer portion referred to as tread (3), and two lateral surfaces (4, 4a, 4b, 4c, 4d, 4′) with height (Q), said resilient tyre (1, 1a, 1b, 1c, 1d) comprising a plurality of cushioning holes (7) made in both of the lateral surfaces (4, 4a, 4b, 4c, 4d, 4′) of the resilient tyre (1, 1a, 1b, 1c, 1d), wherein said cushioning holes (7) substantially have a wing-like shape, wherein an aperture of each cushioning hole (7) in the lateral surface (4, 4a, 4b, 4c, 4d, 4′) has a wing profile comprising an upper camber (8), a lower camber (9), a top edge (10), and a bottom edge (11), wherein said aperture can be inscribed in a rectangle having a height (H) and a base (W) in such a way that said rectangle is simultaneously tangential to the upper camber (8), to the lower camber (9), to the top edge (10) and to the bottom edge (11) of said aperture, and wherein said height (H) is 20% of the section height (Q) of the lateral surfaces (4, 4a, 4b, 4c, 4d, 4′), whereas said base (W) is 50% of the section height (Q) of the lateral surfaces (4, 4a, 4b, 4c, 4d, 4′).