Limb assembly for sport bow

Abstract

A limb assembly for a sport bow includes two limb pockets connected to two rises of the bow and each limb pockets includes two slots with a separation plate connected between the two slots. Each slot includes an open space. Two limb units each have the first end thereof inserted into the slots from the open space of each of the two limb pockets. A string IS connected between two respective second ends of the two limb units. Two resilient members are respectively located between the body and each of the two limb units. Each resilient member has a buffering portion protruding therefrom which is received in a recess of the rise corresponding thereto so that each limb unit resiliently compresses the rise by the resilient members. The resilient members are replaceable to adjust the compress force between the limb units and the rises.

1 . A limb assembly for a sport bow, comprising:
 a body having two rises on two ends thereof, each of the two rises having a recess;   two limb pockets connected to the two rises and each having two slots defined therein, a separation plate connected between the two slots of each of the two limb pockets, each of the slots including an open space, a bolt extending through the separation plate and connecting each of the two limb pockets to the body;   two limb units each having a first end thereof inserted into the slots from the open space of each of the two limb pockets, a string connected between two respective second ends of the two limb units, and   two resilient members respectively located between the body and each of the two limb units, each resilient member having a buffering portion protruding therefrom which is received in the recess of the rise corresponding thereto, each of the limb units resiliently compressing the rise corresponding thereto by the resilient members.   
     
     
         2 . The limb assembly as claimed in  claim 1 , wherein each of the rises includes a connection portion and two pivotal members, the two pivotal members are located on two sides of the connection portion, the connection portion includes two first recessed portions respectively defined in the two sides thereof, each pivotal member has a second recessed portion that faces the first recessed portion, each pivotal member having the recess of the rise and the recess located opposite to the second recessed portion, the buffering portion of each resilient member received in the recess of the pivotal member corresponding thereto, an axle extends through the two pivotal members and the connection portion, two bolts respectively threadedly connected to two ends of the axle, each bolt contacts against an outside face of the pivotal member corresponding thereto to secure the two pivotal members to the connection portion. 
     
     
         3 . The limb assembly as claimed in  claim 2 , wherein the open space of each slot includes a long opening and a short opening, the long opening faces the rise, the short opening is located at an end of the slot. 
     
     
         4 . The limb assembly as claimed in  claim 3 , wherein each of the limb units includes two sub-limbs which are respectively inserted into the slots via the two short openings. 
     
     
         5 . The limb assembly as claimed in  claim 4 , wherein the buffering portion of each resilient member has a hole defined therethrough so as to provide flexibility to the buffering portion. 
     
     
         6 . The limb assembly as claimed in  claim 5 , wherein an elastic coefficient of each of the resilient members is larger than or equal to 100 GPa. 
     
     
         7 . The limb assembly as claimed in  claim 6 , wherein each of the resilient members is made of rubber, low density polyethylene, polypropylene, polyethylene terephthalate, polystyrene, nylon, oak or carbon fiber reinforcement plastic.