1. Field of the Invention
The present invention relates to an adjustable front fork blade, and more particularly to an adjustable front fork blade for a stroller.
2. Description of the Related Art
A conventional stroller in accordance with the prior art shown in
The primary objective of the present invention is to provide an adjustable front fork blade having an adjustable length so that when two front fork blades are mounted on a front wheel, the length of each of the two front fork blades can be adjusted to match each other so as to calibrate and center the position of the front wheel, thereby preventing the front wheel from being oscillated or vibrated due to deflection.
Another objective of the present invention is to provide an adjustable front fork blade having an adjustable length so that the front fork blade is available for front wheels of different sizes, thereby enhancing the versatility of the front fork blade.
A further objective of the present invention is to provide an adjustable front fork blade, wherein the length of the front fork blade is adjusted by rotation of the adjustment threaded rod, so that the length of the front fork blade is adjusted easily and rapidly, thereby facilitating a user adjusting the length of the front fork blade.
A further objective of the present invention is to provide an adjustable front fork blade, wherein the length of the front fork blade is adjusted by rotation of the adjustment threaded rod, so that the length of the front fork blade is adjusted exactly so as to center the position of the front wheel exactly and precisely.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
Referring to the drawings and initially to
The sleeve 3 has a peripheral wall formed with a fixing hole 31, and the connecting tube 4 has a peripheral wall formed with a fixing bore 41. The base 2 has a first end 20 movably mounted in the sleeve 3 and formed with a tapered slideway 21 and a forked second end 24 connected to a front wheel (not shown).
The adjustable front fork blade further comprises a tapered slide 22 slidably mounted in the tapered slideway 21 of the base 2, an adjusting nut 23 secured in the tapered slide 22 for moving the tapered slide 22 in the tapered slideway 21 of the base 2, and an adjustment threaded rod 5 rotatably mounted in the sleeve 3 and screwed into the adjusting nut 23 to drive the tapered slide 22 to move in the tapered slideway 21 of the base 2 by rotation of the adjustment threaded rod 5.
The adjustment threaded rod 5 is extended through the fixing hole 31 of the sleeve 3, the fixing bore 41 of the connecting tube 4, the tapered slideway 21 of the base 2, the tapered slide 22 and the adjusting nut 23. The adjustment threaded rod 5 traverses a longitudinal direction of the base 2 and the sleeve 3. The adjustment threaded rod 5 has a first end formed with a rotation head 54 rotatably mounted in the fixing hole 31 of the sleeve 3 for mounting a wrench 53 to rotate the adjustment threaded rod 5 by rotation of the wrench 53. The adjustment threaded rod 5 has a second end formed with a reduced threaded portion 50 retained in the fixing hole 31 of the sleeve 3 by a washer 51 and a locking nut 52.
In operation, referring to
Accordingly, the front fork blade has an adjustable length so that when two front fork blades are mounted on a front wheel, the length of each of the two front fork blades can be adjusted to match each other so as to calibrate and center the position of the front wheel, thereby preventing the front wheel from being oscillated or vibrated due to deflection. In addition, the front fork blade has an adjustable length so that the front fork blade is available for front wheels of different sizes, thereby enhancing the versatility of the front fork blade. Further, the length of the front fork blade is adjusted by rotation of the adjustment threaded rod 5, so that the length of the front fork blade is adjusted easily and rapidly, thereby facilitating a user adjusting the length of the front fork blade. Further, the length of the front fork blade is adjusted by rotation of the adjustment threaded rod 5, so that the length of the front fork blade is adjusted exactly so as to center the position of the front wheel exactly and precisely.
Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.
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