A sporting good implement, such as a hockey stick or ball bat, includes a main body. The main body may be formed from multiple layers of a structural material, such as a fiber-reinforced composite material. One or more microlattice structures may be positioned between layers of the structural materi
A sporting good implement, such as a hockey stick or ball bat, includes a main body. The main body may be formed from multiple layers of a structural material, such as a fiber-reinforced composite material. One or more microlattice structures may be positioned between layers of the structural material. One or more microlattice structures may additionally or alternatively be used to form the core of a sporting good implement, such as a hockey-stick blade. The microlattice structures improve the performance, strength, or feel of the sporting good implement.
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1. A sporting good implement, comprising: a main body comprising a plurality of layers of structural material; anda microlattice structure positioned between at least two of the layers of structural material, wherein the microlattice structure comprises a plurality of unit cells formed of a pluralit
1. A sporting good implement, comprising: a main body comprising a plurality of layers of structural material; anda microlattice structure positioned between at least two of the layers of structural material, wherein the microlattice structure comprises a plurality of unit cells formed of a plurality of beams that form a single homogeneous structure of the same polymeric material, wherein the plurality of beams have a first spacing to form a first region and a second spacing to form a second region and wherein the second spacing is less than the first spacing and the plurality of beams having differing angles of incidence in the first region and the second region such that the density of the single homogeneous structure varies across the plurality of unit cells. 2. The sporting good implement of claim 1 wherein at least a portion of the microlattice structure has a density of less than 1 mg/cm3. 3. The sporting good implement of claim 1 wherein the main body comprises a hockey-stick blade defining an internal cavity, and wherein the microlattice structure is positioned in the cavity to form a core of the hockey-stick blade. 4. The sporting good implement of claim 3 wherein the hockey-stick blade comprises a heel region, a mid-region, and a toe region, and wherein the microlattice structure has a higher density in the heel region than in the toe region. 5. The sporting good implement of claim 3 wherein the hockey-stick blade comprises a heel region, a mid-region, and a toe region, and wherein the microlattice structure has a higher density in the heel region than in the mid-region and in the toe region. 6. The sporting good implement of claim 3 wherein the hockey-stick blade comprises a heel region, a mid-region, and a toe region, and wherein the microlattice structure has a lower density in the toe region than in the mid-region and in the heel region. 7. The sporting good implement of claim 1 wherein the main body comprises a hockey-stick shaft including an exterior layer and an interior layer between which the microlattice structure is positioned. 8. The sporting good implement of claim 7 wherein the hockey-stick shaft is generally rectangular such that it includes two short sides and two long sides, wherein the density of the microlattice structure is greater along the two short sides. 9. The sporting good implement of claim 1 wherein the main body comprises a hockey-stick shaft defining an interior cavity, and wherein the microlattice structure is positioned in the interior cavity to form a core of the shaft. 10. The sporting good implement of claim 9 wherein the hockey-stick shaft is generally rectangular such that it includes two short sides and two long sides, wherein the density of the microlattice structure is greater in regions running along the long sides than in a central region of the cavity. 11. The sporting good implement of claim 9 wherein the hockey-stick shaft is generally rectangular such that it includes two short sides and two long sides, wherein the density of the microlattice structure is greater in regions running along the short sides than in a central region of the cavity. 12. The sporting good implement of claim 1 wherein the sporting good implement comprises a ball bat, wherein the microlattice structure is positioned between layers of material in a barrel region of the ball bat. 13. The sporting good implement of claim 1 wherein the sporting good implement comprises a ball bat including a handle connected to a barrel via a joint, wherein the microlattice structure is positioned between exterior and interior layers of the joint. 14. The sporting good implement of claim 1 wherein the main body comprises a hockey-skate boot including an exterior layer and an interior layer between which the microlattice structure is positioned. 15. The sporting good implement of claim 1 wherein the main body comprises a sports helmet including an exterior layer and an interior layer between which the microlattice structure is positioned. 16. The sporting good element of claim 1 wherein the first region defines a first series of beams positioned at a first angle and the second region defines a second series of beams positioned at a second angle and wherein the second angle is greater than the first angle. 17. A sporting good implement, comprising: a main body comprising a structural material that defines an interior region, wherein the main body comprises a hockey-stick blade, the blade defining a heel region and a toe region; anda core in the interior region comprising a single homogeneous microlattice structure formed of the same polymeric material wherein the microlattice structure comprises a plurality of unit cells formed of a plurality of beams and wherein the plurality of beams have a first spacing in the toe region and a second spacing in the heel region and wherein the second spacing is less than the first spacing and the plurality of beams having differing angles of incidence in the toe region and the heel region such that the density of the microlattice structure varies across the plurality of unit cells. 18. The sporting good implement of claim 17 wherein at least a portion of the microlattice structure has a density of less than 1 mg/cm3. 19. The sporting good implement of claim 17 wherein the toe region defines a first series of beams positioned at a first angle and the heel region defines a second series of beams positioned at a second angle and wherein the second angle is greater than the first angle. 20. A sporting good implement, comprising: a hockey stick blade having an external, structural frame; anda single homogeneous microlattice structure formed of the same polymeric material positioned inside the structural frame, wherein the microlattice structure has a first zone and a second zone and wherein the second zone is more dense than the first zone to form a varying density and wherein the first zone defines a first series of beams positioned at a first angle and the second zone defines a second series of beams positioned at a second angle and wherein the second angle is greater than the first angle.
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Pearson,Robert T., Durable high performance hockey stick.
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