Resilient force-adjusting structure for skate board

Resilient force-adjusting structure for a skate board comprising at least two bracket bodies, each bracket body including an upper bracket and a lower bracket which are pivotally connected with each other, whereby the upper bracket can swing about a fulcrum relative to the lower bracket, the upper and lower brackets defining therebetween a receptacle in which a resilient mechanism is mounted, the resilient mechanism including:

• a resilient body disposed in the receptacle and leant on the lower bracket;
• two stems uprightly fixed on a top face of the upper bracket and positioned on two sides of the fulcrum of the bracket body, the stems passing through the upper bracket from an inner side to an outer side, each of the stems being formed with an axial thread hole passing through the stem;
• and
• two retainers each of which has a thread rod section and a retaining section disposed at bottom end of the thread rod section, a top end of the thread rod section being formed with a driving section, the thread rod sections of the retainers being upward screwed into the thread holes of the stems with the retaining sections abutting against a top face of the resilient body, whereby by means of driving the driving sections of the retainers, the retainers can be turned to adjust the height of the retainers so as to change the extent to which the retaining sections press the resilient body and adjust the resilient energy of the resilient mechanism.