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KR-102963525-B1 - skateboard with a multi-wheel frame

KR102963525B1KR 102963525 B1KR102963525 B1KR 102963525B1KR-102963525-B1

Abstract

Embodiments of a movable wheel platform that minimizes interaction with the discontinuous and uneven surface of a wheel are described herein. Furthermore, embodiments of a movable wheel platform having a rotation-inhibiting structure are described herein. Implementing a rotation-inhibiting structure on or within a movable wheel platform helps eliminate wheel bite. Other embodiments may be described and claimed.

Inventors

  • 카펠로 딜런 알
  • 피터슨 데이비드 엘
  • 솔하임 존 에이

Assignees

  • 카스턴 매뉴팩츄어링 코오포레이숀

Dates

Publication Date
20260511
Application Date
20200323
Priority Date
20190322

Claims (20)

  1. As a truck, A hanger comprising a pivot saddle including a cylindrical body surrounding a bore or void, a pivot tip, and a pivot body surrounding a hole, and at least two rotation restraint structures integrally connected to the hanger; An axle accommodated within a bore or void in the cylindrical body of the above-mentioned hanger; and An assembly comprising a first arm and a second arm, a first wheel and a second wheel, each of which is coupled to both the first arm and the second arm, and a third wheel and a fourth wheel coupled to the axle. Includes, The above hanger has a width between 6 and 7 inches, Each of the first arm and the second arm includes a front region, an intermediate region, and a rear region, and A front hole is formed in the front area, and A middle hole is formed in the middle area, and A rear hole is formed in the rear area, and At least two rotation restraint structures prevent the first arm and the second arm from rotating beyond a predetermined angle, and At least two rotation restraint structures are located adjacent to the pivot saddles on both sides of the pivot saddles and spaced apart from the cylindrical body, and A chassis having at least two rotation restraint structures at the same height as each other, an intermediate region of the first arm and the second arm that is complementary, and located in the space between the two rotation restraint structures and the cylindrical body.
  2. A chassis according to claim 1, wherein each of the first arm and the second arm includes a first end and a second end, and the first end and the second end are in nearly the same plane as each other.
  3. A chassis according to claim 1, wherein each of the first arm and the second arm includes a first end and a second end, and the first end and the second end form an angle of 178 to 180 degrees.
  4. In paragraph 1, the frame is a frame located at the nose of the skateboard.
  5. In paragraph 4, the frame is a frame located at the tail of the skateboard.
  6. delete
  7. A chassis in which, in paragraph 1, the first wheel, second wheel, third wheel and fourth wheel are arranged in a diamond-shaped configuration.
  8. In paragraph 2, the first end of the first arm and the second arm is shorter in length than the second end of the first arm and the second arm.
  9. A chassis according to claim 1, wherein the first wheel, second wheel, third wheel and fourth wheel have the same diameter.
  10. A chassis according to claim 1, wherein the aforementioned planned angle is 45 degrees.
  11. A chassis according to claim 1, wherein the aforementioned planned angle is 0 to 35 degrees.
  12. A chassis according to claim 1, wherein the length of each of at least two rotation restraint structures is non-circular and non-elliptical, and the length is 2 to 2.5 inches.
  13. In paragraph 12, a chassis having at least two rotation restraint structures, each having a width of 0.125 inches to 0.375 inches.
  14. A chassis according to claim 1, wherein the chassis further comprises a flange bearing housed in the intermediate hole of the first arm and the second arm to reduce friction between the cylindrical body of the hanger and the first arm and the second arm.
  15. In Clause 14, the chassis is one in which the flange bearing is made of nylon material.
  16. In paragraph 3, the chassis is a reverse king pin configuration.
  17. A chassis according to paragraph 1, wherein the front hole, middle hole, and rear hole are circular.
  18. A chassis according to claim 1, wherein each of at least two rotation restraint structures is of the solid type.
  19. A chassis according to claim 1, wherein each of at least two rotation restraint structures is hollow.
  20. A chassis according to claim 1, wherein the diameters of the first wheel, second wheel, third wheel and fourth wheel are 2.7 inches to 4 inches.

Description

skateboard with a multi-wheel frame The present disclosure generally relates to skateboards, and more specifically to multi-wheel skateboard trucks. Related application data This application claims the benefits of U.S. Patent Application No. 62/822,412 filed March 22, 2019 and U.S. Patent Application No. 62/880,562 filed July 30, 2019, the entire contents of which are incorporated herein by reference. Individuals ride and use skateboards as a convenient and enjoyable means of transportation. Generally, skateboards offer many advantages over other self-propelled means of transport because they are easy to store, pick up, and carry. However, when a user rides a skateboard over cracks—including (but not limited to) contraction joints, expansion joints, control joints, and uneven surfaces—the skateboard's wheels sink into the cracks and spring back out when they come into contact with the other side of the crack. This type of interaction results in adverse effects, including noise, impact to the rider, and difficulties in handling (or controlling) the skateboard. The industry requires mobile wheel platforms that minimize interaction between the wheels and discontinuous and uneven surfaces to improve individual riding experience and satisfaction. FIG. 1 is a perspective view of a movable wheel platform coupled to a skateboard deck according to one embodiment. Figure 2 is a partially exploded view of the movable wheel platform of Figure 1. FIG. 3 is another perspective view of a movable wheel platform coupled to the skateboard of FIG. 1. Figure 4 is a drawing showing the assembled movable wheel platform of Figure 2. Figure 5 is an enlarged view of the hanger in Figure 1. Figure 6 is an enlarged view of the arm of Figure 1. Figure 7 is a partial assembly diagram of Figure 4. FIG. 8 is an exploded view of a movable wheel platform according to another embodiment. Figure 9 is a drawing showing the movable wheel platform of Figure 8 assembled and coupled to a skateboard. Figure 10 is an enlarged view of the arm of Figure 8. Fig. 11 is an enlarged view of the hanger of Fig. 8. FIG. 12 is an exploded view of a movable wheel platform according to another embodiment. Figure 13 is a drawing showing the assembled movable wheel platform of Figure 12. FIG. 14 is a drawing showing the movable wheel platform of FIG. 12 assembled and coupled to a skateboard. FIG. 15 is a drawing showing a movable wheel platform coupled to a skateboard deck according to another embodiment. Fig. 16 is an enlarged view of Fig. 15. FIG. 17 is a drawing showing an arm according to an embodiment of FIG. 14. FIG. 18 is a drawing showing the assembled movable wheel platform of FIG. 15. FIG. 19 is a drawing showing a friction reduction element according to an embodiment of FIG. 15. Fig. 20 is an exploded view of the movable wheel platform of Fig. 15. FIGS. 21 to 24 show an exemplary operation analysis of the movable wheel platform of FIG. 8. The invention presented herein relates to a mobile wheel platform capable of mitigating negative (or unwanted) feedback experienced by a user when operating on uneven surfaces, such as cracks in sidewalks. Many of the mobile wheel platform embodiments presented herein may be configured for use in skateboard or longboard applications (in the form of a chassis). However, in variations, the mobile wheel platform may be adapted for use in unicycle handcarts, industrial carts, industrial trolleys, commercial carts, utility trolleys, handcarts, and stack truck applications. A skateboard or longboard may comprise a series of frames having arms, axles, and wheels, and the wheels are arranged such that, if applicable, at least two wheels are in contact with the ground at any given moment while the remaining wheels of the frame hang or sink into a crack or void space. The frames are further configured to prevent the wheels from contacting or engaging with the bottom of the skateboard or longboard in the event that the center of mass of the skateboard is suddenly displaced. This is achieved at least partially by an anti-rotation structure. The terms or phrases used herein, “connect,” “connected,” “connects,” and “connecting,” may be defined as combining two or more elements together mechanically or in other ways. The connection (whether mechanical or otherwise) can be for any duration, for example, permanent, semi-permanent, or temporary. The terms or phrases used herein, “linked,” “linked,” “links,” and “linking” may be defined as a relationship between two or more elements in which at least one element affects another element. The linkage (whether mechanical or otherwise) may be for any period of time, for example, permanent, semi-permanent, or temporary. The terms or phrases used herein, “fix,” “fixed,” “fixing,” and “fixing” may be defined as securing one or more elements so that they do not move or become loose. The fixation (whether mechanical or otherwise) may be for any period of time, for example, permanent, semi-perma