| 摘要 |
Portions of a pair of first pin members, a pair of second pin members, and a pair of third pin members other than one end portions thereof are respectively inserted into and held in a pair of first holding holes, a pair of second holding holes and a pair of third holding holes that extend perpendicularly to reference surfaces that are top faces of first to third connected body assembly jigs. In this state, a single first link plate, a single second link plate and a third link plate are press-fitted onto the one end portions until the first to third link plates come into contact with the reference surfaces. In this way, first to third multiple connected bodies are assembled. Then, the first to third multiple connected bodies and multiple fourth link plates are assembled into a power transmission chain. |
| 主权项 |
1. An assembly method for a power transmission chain including first to n-th link plates and first to (n−1)-th pin members being an integer of four or greater, wherein each of the first link plates has a pair of first pin holes, the first link plates are disposed in an outermost row on one side in a chain-width direction and arranged at prescribed intervals in a chain-travelling direction, one end portions of the first pin members are press-fitted into the first pin holes, the first pin members are arranged at prescribed intervals in the chain-travelling direction, each of the k-th link plates has a pair of k-th pin holes, k being integers of two to (an−1), the k-th link plates are placed adjacent to and stacked on the other side of the (k−1)-th link plates in the chain-width direction and arranged at prescribed intervals in the chain-travelling direction, one end portions of the k-th pin members are press-fitted into the k-th pin holes, the k-th pin members are arranged at prescribed intervals in the chain-travelling direction, each of the n-th link plates has a pair of n-th pin holes, and the n-th link plates are stacked in an entire region on the other side of the (n−1)-th link, plates in the chain-width direction so as to form multiple layers, the assembly method comprising the steps of:
(a) assembling a first connected body including a pair of the first pin members and the single first link plate by press-fitting the single first link plate onto the one end portions of the first pin members until the first link plate comes into contact with a reference surface that is a top face of a first connected body assembly jig in a state where portions of the pair of first pin members other than the one end portions are inserted into and held in a pair of first holding holes that are open at the reference surface and that extend in a direction perpendicular to the reference surface; (b) assembling a k-th connected body including a pair of the k-th pin members and the single k-th link plate by press-fitting the single k-th link plate onto the one end portions of the k-th pin members until the k-th link plate comes into contact with a reference surface that is a top face of a k-th connected body assembly jig in a state where portions of the pair of k-th pin members other than the one end portions are inserted into and held in a pair of k-th holding holes that are open at the reference surface and that extend in a direction perpendicular to the reference surface; and (c) assembling the first to (n−1)-th multiple connected bodies by repeatedly performing the steps (a) and (b), and then assembling the power transmission chain from the first to (n−1)-th multiple connected bodies and the multiple n-th link plates. |
