초록 ▼

A mechanical joint system includes a joint, an arm, a plurality of teeth, and an engaging member. The joint defines a pivot hole and a joint receiving hole communicating with the pivot hole. The arm is rotatable relative to the joint. The arm includes a pivot portion and a pivot hole defined in the

A mechanical joint system includes a joint, an arm, a plurality of teeth, and an engaging member. The joint defines a pivot hole and a joint receiving hole communicating with the pivot hole. The arm is rotatable relative to the joint. The arm includes a pivot portion and a pivot hole defined in the pivot portion, the pivot portion is received in the joint receiving hole. The teeth are formed on an inner surface adjacent to an end of the pivot hole. The engaging member is fixed to the joint. The engaging member includes a prong for engaging with the teeth.

대표청구항 ▼

1. A mechanical joint system, comprising: a joint defining a pivot hole, a joint receiving hole communicating with the pivot hole, and a plurality of locking grooves communicating with the pivot hole;an arm being rotatable relative to the joint, the arm comprising a pivot portion and a pivot hole de

1. A mechanical joint system, comprising: a joint defining a pivot hole, a joint receiving hole communicating with the pivot hole, and a plurality of locking grooves communicating with the pivot hole;an arm being rotatable relative to the joint, the arm comprising a pivot portion and a pivot hole defined in the pivot portion, the pivot portion being received in the joint receiving hole;a plurality of teeth formed on an inner surface adjacent to an end of the pivot hole of the arm; andan engaging member comprising a pivot shaft, a fixing member, and at least one prong, the pivot shaft being fixed to the joint and comprising a shaft head, a shaft portion extending from an end of the shaft head, and a plurality of latching rims locked in the plurality of locking grooves circling an end of the shaft portion and connected to an end of the shaft head, the shaft head being inserted into the pivot hole of the arm from an end thereof, the fixing member being inserted into the pivot hole of the arm from an opposite end thereof, and fixed relative to the pivot shaft;wherein the shaft portion defines a threaded hole in an end opposite to the shaft head and at least one groove communicating with the threaded hole thereby forming an elastic plate connecting to the shaft portion, and the prong extends from an outer surface of the elastic plate for engaging with the teeth. 2. The mechanical joint system as claimed in claim 1, wherein the fixing member comprises a shaft head and a threaded portion extending from an end of the shaft head of the fixing member, the threaded portion is configured to threadedly engage into the threaded hole of the shaft portion of the engaging member. 3. The mechanical joint system as claimed in claim 2, wherein the pivot hole of the arm and the pivot hole of the joint are aligned along a same axis. 4. The mechanical joint system as claimed in claim 3, wherein the joint further comprises a first flange portion and a second flange portion formed in the pivot hole of the joint, the first flange portion and the second flange portion are disposed adjacent to opposite sides of the joint receiving hole correspondingly. 5. The mechanical joint system as claimed in claim 3, further comprising a second joint, the second joint comprising a first half and a second half attached to the first half, and the arm further comprising a ball opposite to the pivot portion for rotatably engaging in the second joint. 6. The mechanical joint system as claimed in claim 5, wherein the first half comprises a plurality of cylindrical poles extending from an inner surface thereof, each of the cylindrical poles defines a circular hole therein, the second half includes a plurality of latching poles extending from an inner surface thereof, each of the latching poles has a size corresponding to one of the circular holes, the first half is attached to the second half by inserting the latching poles into the circular holes correspondingly. 7. The mechanical joint system as claimed in claim 5, further comprising a pair of first and second half sockets, each of the first and second half sockets including a concave inner surface, the first and second half sockets being fixed to the first half and the second half correspondingly, and the concave inner surfaces being oriented symmetrically opposite to each other to cooperatively clamp the ball of the arm.