The present invention relates to a skateboard that includes two brake devices operated by feet and the wheel assembly of each wheel is easily to be assembled.
A conventional skateboard generally includes a deck with two sets of trucks and each truck includes two wheels. The player stands on the top of the deck and controls the wheels to move forward. For safety reason, when the skateboard moves along a down slope, the player controls the skateboard to perform a zigzag movement to slow the speed so as to efficiently control the skateboard. A brake device is used to brake the skateboard when needed. The conventional brake device is controlled by hand and a brake cable is connected between the brake lever and the brake mechanism located beside the wheels. However, the player cannot perform some typical movements if one hand has to grasp the brake device. Besides, the long brake cable might tangle objects during playing the skateboard and this could lead to a unexpected result. Also, the long brake cable is not convenient for carry of the skateboard.
The conventional wheels of the skateboard are made to be a one-piece member and includes a rim and a tire which is mounted to the rim. Once the rim or the tire is damaged, the whole wheel has to be replaced. Some rims of wheels are composed of two side parts which are connected with each other by a plurality of bolts. When dis-assembling the wheel, all the bolts have to be removed and this is a time-consuming job. The two parts have different shapes which restrict the way that assemblers assemble them. Besides, the two parts needs two different molds to manufacture.
The present invention intends to provide a skateboard that includes two brake devices each include a strap on a top of the deck and the straps are controlled by player's feet. There is no long brake cable extending from the wheels. The wheel assembly of the skateboard is easily assembled and may be cooperated with different types of tires.
The present invention relates to a skateboard which comprises two trucks connected to an underside of a deck and two shafts are connected to two ends of each of the two trucks so that two wheels are rotatably connected to the shafts. At least one active device is connected to a top of the deck and connected to a driving member located at the underside of the deck. The at least one active device is controlled by user's foot. The driving member is connected to a brake cable of at least one brake device for stopping the wheels.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
Referring to
At least one active device 30 is connected to a top of the deck 10 and controlled by user's foot.
At least one synchronic device 40 is connected to the underside of the deck 10 and controlled by the at leas tone active device 30 so as to synchronically pull a plurality of brake cables 51 of at least one brake device 50.
At least one brake device 50 is cooperated with the wheels 20 and able to stop the wheels 20. The brake device 50 is known to the person with knowledge of this field and will not be described in detail.
The deck 10 includes a receiving port 101 for receiving the at least one active device 30 and the receiving port 101 includes a through hole 102 such that the at least one active device 30 is pivotably connected to the deck 10 via the through hole 102. A plurality of fixing portions 103 are defined in the underside of the deck 10 and located around the through hole 102 so that the at least one synchronic device 40 is connected to the deck 10.
As shown in
The engaging end 354 is connected to the at least one synchronic device 40. The engaging end 354 includes a notch 355 and an end of a torsion spring 38 is engaged with the notch 355. The other end of the torsion spring 38 is fixed to the disk 36 which includes connection holes 360 for being connected to the deck 10. By the torsion spring 38, the strap and the driving member 34 are able to return to their initial position after completion of the braking action.
As shown in
The arm 42 includes a polygonal hole 420 and the engaging end 354 of the driving piece 35 is engaged with the polygonal hole 420. A slot 421 is defined in an end of the arm 42 and one end of the link 44 is pivotably engaged with the slot 421. The other end of the link 44 is pivotably connected to the connection board 43. Two receiving recesses 430 are defined in the connection board 43 so as to receive terminals 510 of the brake cables 51 therein. The sheaths 511 of the brake cables 51 are stopped by the outside of the guide portion 412 of the case 41.
The brake device 50 is a drum brake device and connected to the brake cables 51. The brake cables 51 drives the drum brake device 50 by a spring 52 and a crank 53.
As shown in
Each of the connection members 24 includes a central passage 242, two bearings 26 are located at two ends of the central passage 242 and a sleeve 27 is located at a center of the central passage 242. The shaft 12 extends through the bearings 26 and the sleeve 27, and two ends of the shaft 12 are connected to two nuts 13. Two end caps 28 are respectively connected to two respective distal ends of the two shafts 12 of each truck 11. Each of the two end caps 28 includes a flexible periphery 280 and a display area 281 is defined in an outside of each end cap 28. The flexible periphery 280 allows the end cap 28 to be easily mounted to the nut 13. The display area 281 is used for displaying trademarks or commercial patterns.
A circular recessed area 233 enclosed by the spokes 231 of each the side members 23 is capable of touching a brake member 54 of the at least one brake device 50 to brake the wheel 20.
There are advantages for the skateboard of the present invention:
1. The brake device is controlled by user's feet so that no long brake cable exposed which could tangle objects. The user's hands are free and can hold the deck when performing some stunt actions.
2. The brake device is combined with the deck so that the whole structure is impact and highly safe. The braking action is controlled by feet rather than by hands so that the deck has more free range to roll and flip.
3. Because of no long brake cable, the skateboard is convenient to be carried.
4. The wheel assembly includes symmetric side members which is connected with each other by a single connection member so that the wheel assembly can be quickly assembled and only one mold for manufacturing the side members.
5. Each part of the wheel assembly can be individually replaced, for example the side members are identical which are easily replaced.
6. The connection member is located at a center of the wheel and includes a tapered outer periphery which is benefit for auto-alignment of the side members and the rim when assembling the wheel assembly.
The wheel 20 can also be replaced with certain type of tire such as the tire 21A in
As shown
As shown in
While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
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Number | Date | Country | |
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20060220336 A1 | Oct 2006 | US |