Large wheel, low center of gravity casterboard system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B62M-001/00
A63C-017/00
출원번호
US-0341277
(2014-07-25)
등록번호
US-9010778
(2015-04-21)
발명자
/ 주소
Burns, Eric
출원인 / 주소
Burns, Eric
인용정보
피인용 횟수 :
1인용 특허 :
5
초록▼
A forward board has a forward foot placement section, a wheel arch section with a high point, a forward caster mount section extending rearwardly and upwardly from the forward end of the forward board. A rearward board has a rearward foot placement section, a rearward caster mount section extending
A forward board has a forward foot placement section, a wheel arch section with a high point, a forward caster mount section extending rearwardly and upwardly from the forward end of the forward board. A rearward board has a rearward foot placement section, a rearward caster mount section extending forwardly and downwardly from the rearward end of the rearward board. A connector/torque assembly couples the forward and rearward boards and includes a longitudinal pivot/connecting rod, a torsion spring. A forward wheel with a forward caster is rotatable about a first axis positioned beneath the high point of the front wheel arch section. A rearward wheel with a rearward caster is rotatable about a third axis positioned rearwardly of the rearward board. The foot placement sections are in a common plane extending through the wheels above the first and third axes when the wheels are in a neutral forward position.
대표청구항▼
1. A large wheel, low center of gravity casterboard system comprising: a forward board having a forward foot placement section and a wheel arch section with a high point, the forward board having a forward caster mount section extending rearwardly and upwardly from the forward end of the forward boa
1. A large wheel, low center of gravity casterboard system comprising: a forward board having a forward foot placement section and a wheel arch section with a high point, the forward board having a forward caster mount section extending rearwardly and upwardly from the forward end of the forward board;a rearward board having a rearward foot placement section and a rearward caster mount section extending forwardly and downwardly from the rearward end of the rearward board;a connector/torque assembly coupling the forward board and rearward boards, the connector/torque assembly including a longitudinal pivot/connecting rod and a torsion spring;a forward wheel with a forward caster, the forward wheel rotatable about a first axis beneath the high point of the front wheel arch section; anda rearward wheel with a rearward caster, the rearward wheel rotatable about a third axis rearwardly of the rearward board, the foot placement section of the forward board and the foot placemen section of the rearward board being in a common plane, the common plane extending through the forward and rearward wheels above the first and third axes when the wheels are in a neutral forward position. 2. The casterboard system as set forth in claim 1 wherein the forward caster mount section extends rearwardly and upwardly from the forward end of the forward board at an acute angle from horizontal. 3. The casterboard system as set forth in claim 1 wherein the rearward caster mount extends forwardly and downwardly from the rearward edge of the rearward board at an acute angle from horizontal. 4. The casterboard system as set forth in claim 1 wherein the forward board and the rearward board are fabricated of a material chosen from the class consisting of wood, plastic, fiberglass, and composites. 5. The casterboard system as set forth in claim 1 wherein the torsion spring is in a planar configuration with a forward end secured to the forward rod housing/spring mount and with a rearward end secured to the rearward rod housing/spring mount and the spring is fabricated of a material chosen from the class consisting of Kevlar, carbon fiber, spring steel, fiberglass, and composites. 6. A large wheel, low center of gravity casterboard system (10) comprising, in combination: a forward board (14) having an upper surface and a lower surface separated by a thickness, the forward board having a forward end (16) and a rearward end (18) separated by a length, the forward board having a forward foot placement section (20) extending forwardly from the rearward end of the forward board, the forward board having a forward caster mount section (26), the forward board having a front wheel arch section (22) extending rearwardly from the forward end of the forward board, the front wheel arch section having a high point, the lower surface of the forward board, adjacent to the forward end of the forward board, being of a planar configuration. thereby constituting a forward caster mount (24), the forward caster mount extending rearwardly and upwardly from the forward end of the forward board at an acute angle from horizontal;a rearward board (28) having an upper surface and a lower surface separated by a thickness, the rearward board having a forward end (30) and a rearward end (32) separated by a length, the rearward board having a planar rearward foot placement section (34) extending rearwardly from the forward end of the rearward board, the rearward board having a rearward caster mount section (36) extending forwardly and downwardly from the rearward end of the rearward board, the lower surface of the rearward board, adjacent to the rearward end of the rearward board, being of a planar configuration, thereby constituting a rearward caster mount (38), the rearward caster mount extending forwardly and downwardly from the rearward edge of the rearward board at an acute angle from horizontal, the forward board and the rearward board being fabricated of a material chosen from the class consisting of wood, plastic, fiberglass, and composites;a connector/torque assembly coupling the forward board and the rearward board, the connector/torque assembly including a forward rod housing (42) attached to the lower surface of the forward board at a central region of the forward foot placement section, a rearward rod housing (44) attached to the lower surface of the rearward board at a central region of the rearward foot placement section, a forward rod housing/spring mount (46) attached to the lower surface of the forward board adjacent to the rearward end of the forward board, a rearward rod housing/spring mount (48) attached to the lower surface of the rearward board adjacent to the forward end of the rearward board, a longitudinal pivot/connecting rod (50) extending through and rotatably secured to the forward and rearward rod housings, the longitudinal pivot/connecting rod extending through and rotatably secured to the forward and rearward rod housing/spring mounts, the longitudinal pivot/connecting rod having a central section (52) of an enlarged diameter and end sections (54) of a reduced diameter, the central section being longitudinally interior of the forward and rearward rod housing/spring mounts (46), (48), the end sections being longitudinally exterior of the forward and rearward rod housing/spring mounts (46), (48);a torsion spring (56) in a planar, dog bone-shaped configuration with a forward end secured to the forward rod housing/spring mount and with a rearward end secured to the rearward rod housing/spring mount, the spring being fabricated of a material chosen from the class consisting of Kevlar, carbon fiber, spring steel, fiberglass, and other composites;a forward wheel (60), a forward caster (62) rotatably supporting the forward wheel, the forward wheel rotatable about a horizontal first axis (64), the caster rotatable about a second axis (66) perpendicular to the caster mount section of the forward board, the first axis being beneath the high point of the front wheel arch section; anda rearward wheel (70), a rearward caster (72) rotatably supporting the rearward wheel, the rearward wheel rotatable about a horizontal third axis (74), the caster rotatable about a fourth axis (76) perpendicular to the caster mount section of the rearward board, the third axis being located rearwardly of the rearward board, a skateboard length being measured from the forward end of the forward board to the rearward end of the rearward board;the foot placement section of the forward board and the foot placement section of the rearward board being in a common plane, the common plane extending through the forward and rearward wheels above the first and third axes when the wheels are in a neutral forward position.
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