Abstract
The present invention provides a swivel joint of a strap-type leash, wherein one end of the strap-type leash connects to one end of a rope through a first connector, the other end of the rope connects to a rail protection band through a second connector, and the rail protection band is configured with a hooking string for hooking a surfboard. The first connector includes a first rotating handle, wherein one end of the first rotating handle is configured with a first ball bearing, and the other end of the first rotating handle is configured with a first fastening hole. The first connector further includes a first joint portion, wherein the first joint portion is configured with a cavity to accommodate the first ball bearing for rotating the first rotation handle in three dimensions, and a plurality of rings are configured around an outer side of the first joint portion.
Claims
1. A swivel joint of a strap-type leash, wherein one end of the strap-type leash connects to one end of a rope through a first connector, the other end of the rope connects to a rail protection band through a second connector, and the rail protection band is configured with a hooking string for hooking a surfboard, characterized in that the first connector comprises: a first rotating handle, wherein one end of the first rotating handle is configured with a first ball bearing, and the other end of the first rotating handle is configured with a first fastening hole; and a first joint portion, wherein the first joint portion is configured with a cavity to accommodate the first ball bearing for rotating the first rotation handle in three dimensions, and a plurality of rings are configured around an outer side of the first joint portion.
2. The swivel joint for the strap-type leash as claimed in claim 1, wherein the second connector comprises: a second rotating handle, wherein one end of the second rotating handle is configured with a second ball bearing, and the other end of the second rotating handle is configured with a second fastening hole; and a second joint portion, wherein the second joint portion is configured with a cavity therein to accommodate the second ball bearing for rotating the second rotation handle in three dimensions, and a plurality of rings are configured around an outer side of the second joint portion.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] FIG. 1 is a schematic diagram of the 2D plane rotational structure of the connector of the leash in the prior art.
[0008] FIG. 2 is an enlarged schematic diagram of the swivel joint of the leash in one embodiment of the present invention.
[0009] FIG. 3 is a schematic diagram of the swivel joint of the leash, which the first connector of the swivel joint and the second connector of the swivel joint has the same structure, in one embodiment of the present invention.
[0010] FIG. 4 is a schematic diagram illustrating the swivel joint of the leash rotating in three dimensions.
DETAILED DESCRIPTION OF THE INVENTION
[0011] As shown in FIG. 2, FIG. 2 is an enlarged schematic diagram of the swivel joint of the leash in one embodiment of the present invention. The swivel joint of the leash includes a strap-type leash 1 having one end connecting to a rope 5 through a first connector 10. The other end of the rope 5 connects to a rail protection band 3 through a second connector 20. The rail protection band 3 is configured with a hooking string 4 for hooking a surfboard 9. The first connector 10 includes a first rotating handle 11. One end of the first rotating handle 11 is configured with a first ball bearing 12, and the other end of the first rotating handle 11 is configured with a first fastening hole 13. The first connector 10 also includes a first joint portion 14. The first joint portion 14 is configured with a cavity to accommodate the first ball bearing 12 capable of a three-dimensional rotation. A plurality of rings 15 are configured around an outer side of the first joint portion 14. The strap-type leash 1 is configured to hook the surfer's ankle or knee portion. For example, the strap-type leash 1 is configured with Velcro. A schematic diagram and a cross-sectional view of the first connector 10 are also shown in FIG. 2.
[0012] As shown in FIG. 2 and FIG. 3, FIG. 2 and FIG. 3 are schematic diagrams of the swivel joint of the leash in one embodiment of the present invention. The first connector 10 of the swivel joint of the leash has a top portion 7 and a bottom portion 8, which can be seen in the top view and bottom view, respectively. The first connector 10 includes the first rotating handle 11. One end of the first rotating handle 11 is configured with the first ball bearing 12, and the other end of the first rotating handle 11 is configured with the first fastening hole 13. The first connector 10 also includes the first joint portion 14. The first joint portion 14 is configured with the cavity to accommodate the first ball bearing 12 capable of the three-dimensional rotation. The plurality of rings 15 are configured around the outer side of the first joint portion 14.
[0013] As shown in FIG. 2 and FIG. 3, FIG. 2 and FIG. 3 are schematic diagrams of the swivel joint of the leash in one embodiment of the present invention. A second connector 20 of the swivel joint of the leash has a top portion 7 and a bottom portion 8, which can be seen in the top view and bottom view respectively. The second connector 20 includes a second rotating handle 21. One end of the second rotating handle 21 is configured with a second ball bearing 22, and the other end of the second rotating handle 21 is configured with a second fastening hole 23. The second connector 20 also includes a second joint portion 24. The second joint portion 24 is configured with a cavity to accommodate the second ball bearing 12 capable of the three-dimensional rotation. The plurality of rings 15 are configured around the outer side of the second joint portion 24.
[0014] As shown in FIG. 4, FIG. 4 is a schematic diagram illustrating the swivel joint of the leash rotating in three dimensions. In the prior art, as shown in FIG. 1, the supporting bearing 6 has an oblate structure. Therefore, the supporting bearing 6 can only rotate in the two dimensional plane formed by the x-axis and the y-axis, and the supporting bearing 6 cannot rotate in the z-axis direction. This is, the supporting bearing 6 is not capable of the three-dimensional rotation. Please refer to FIG. 4, the first rotating handle 11 and the second rotating handle 21 respectively has an angle (0 degreesangle 180 degrees) with regard to the two dimensional plane formed by the x-axis and the y-axis. Therefore, the first rotating handle 11 and the second rotating handle 21 can swing in the z-axis direction. Since the first ball bearing 12 and the second ball bearing 22 are spherical, the first rotating handle 11 and the second rotating handle 21 can rotate clockwise or counterclockwise along their own axes. The structure can further make the first rotating handle 11 and the second rotating handle 21 rotate clockwise or counterclockwise along the two dimensional x-y axes plane at the same time by swinging the first rotating handle 11 and the second rotating handle 21 at different heights in the z-axis direction. In summary of the above, the swivel joint of the present invention overcomes the drawbacks in the prior art, where the connectors are not capable of rotating in three dimensions. Such that, the swivel joint may help the surfers to have a better sense of balance and may mitigate the instantaneous tension easily. Therefore, the surfers may experience more comfort.
[0015] The above description and explanation are only descriptions of the preferred embodiments of the present invention. Those with ordinary knowledge of this technology can make other modifications based on the patent scope defined below and the foregoing description. However, these modifications should be still regarded as the creative spirit of the present invention and be within the scope of the rights of the present invention.
