1. Field of the Invention
The present invention relates to a racing type pedal, and more particularly to a racing type pedal for a bicycle.
2. Description of the Related Art
In general, the racing type pedal for a bicycle includes a road-use pedal and a mountaineering pedal, and the two different types of pedals need to mate with two different types of shoes and snap blocks. In practice, the snap block is mounted on the bottom of the bicycle shoe and snapped onto the bicycle pedal to secure the bicycle shoe on the bicycle pedal.
A conventional racing type pedal 3 in accordance with the prior art shown in FIGS. 10 and 11 comprises a main body 30, a hollow pivot hook 31 pivotally mounted on the main body 30 by a pivot shaft 32 and having a side formed with a vertical plate 310 having a through hole 3101, an adjusting bolt 34 mounted on the plate 310 of the pivot hook 31 extended through the through hole 3101 of the plate 310 of the pivot hook 31, a press block 35 mounted on the distal end of the adjusting bolt 34, and two torsion springs 33 each mounted on the pivot shaft 32 and each having a first end 330 urged on a block 301 of the main body 30 and a second end 331 urged on the press block 35.
However, when the adjusting bolt 34 is rotated to move the press block 35 to adjust the torque of the pivot hook 31, the adjusting bolt 34 and the press block 35 are subjected to a shearing force applied by the torsion springs 33, so that the adjusting bolt 34 is easily deflected from the press block 35 during movement, thereby disengaging or wearing the adjusting bolt 34 and the press block 35. In addition, the plate 310 of the pivot hook 31 is subjected to a force applied by the adjusting bolt 34, so that the plate 310 of the pivot hook 31 is easily distorted or deformed due to the applied force during a long-term utilization.