Patent ID: 9551399
Date: 2017-01-24
CPC Classifications: F16G,H02G

Claim:
1. A cable guiding-protecting chain, comprising: a plurality of chain members connected in series, each chain member comprising two connection plates which face each other and are spaced apart from each other and a first link plate and a second link plate which each connect the two connection plates, face each other and are spaced apart from each other, the two connection plates, the first link plate and the second link plate cooperating to define a passing space penetrating from the front to the rear, each connection plate having an inner link portion at a front segment thereof, an outer link portion at a rear segment thereof and an outer step portion, a width between two opposite outside surfaces of the two inner link portions being less than a width between two facing inside surfaces of the two outer link portions, the outer link portion having a rear end edge which is arcuate in shape and a thinned portion which is close to the rear end edge and is thinned in thickness at a side adjacent to the passing space, the outer step portion being positioned between an outside surface of the connection plate and an outside surface of the inner link portion and having a recessed portion rearwardly recessed; in every two chain members pivot to each other in series, the two outer link portions of the two connection plates of the chain member at the front being respectively rotatably pivot to the two inner link portions of the two connection plates of the chain member at the rear and being respectively positioned outside of the two inner link portions, and each thinned portion of the chain member at the front cooperating with the corresponding outside surface of the inner link portion of the chain member at the rear to define a first insertion space, and each rear end edge of the outer link portion of the chain member at the front being spaced apart from the corresponding recessed portion of the chain member at the rear and cooperating with the corresponding recessed portion of the chain member at the rear to define a second insertion space, the first insertion space and the second insertion space at the same side being communicated, wherein each connection plate of the plurality of chain members further has a first pivot unit provided to the outer link portion and a second pivot unit provided to the inner link portion, and one of the first pivot unit and the second pivot unit is a pivot hole, and the other of the first pivot unit and the second pivot unit is a pivoting shaft, every two chain members connected in series are pivotally connected to each other by the two pivoting shafts being respectively engaged with the two pivot holes and wherein a front edge of the second link plate of each chain member extends forwardly beyond a front edge of the first link plate, and a rear edge of the second link plate and a rear edge of the first link plate are flush with each other.