Links constituting a device for guiding a long object are each provided with a pair of link portions, a first coupling portion for coupling the pair of link portions to each other, and a second coupling portion for coupling the pair of link portions at a position opposite to the first coupling portion. A long object is accommodated in an accommodation space defined by the link portions, the first coupling portions, and the second coupling portions. The first coupling portion constitutes a mounting member detachably attached to mounting portions of the pair of link portions. The first coupling portion has a hinge shaft at a first end and a hook portion at a second end. The mounting portion of each link portion has a bearing portion that supports the hinge shaft to be freely rotational while restricting movement thereof, and an engaging hole that is engaged with the hook.

Links constituting a device for guiding a long object are each provided with a pair of link portions, a first coupling portion for coupling the pair of link portions to each other, and a second coupling portion for coupling the pair of link portions at a position opposite to the first coupling portion. A long object is accommodated in an accommodation space defined by the link portions, the first coupling portions, and the second coupling portions. The first coupling portion constitutes a mounting member detachably attached to mounting portions of the pair of link portions. The first coupling portion has a hinge shaft at a first end and a hook portion at a second end. The mounting portion of each link portion has a bearing portion that supports the hinge shaft to be freely rotational while restricting movement thereof, and an engaging hole that is engaged with the hook.

A chain damping and shock absorber system for a chain includes one or more damping devices, each damping device installed to a segment of the chain, such that the chain and the one or more damping devices installed to a chain segment form a damped and compressed chain assembly. In response to a tensile force applied to the chain, the chain segment is extendable to an extended length which is between its compressed length and its full length. Methods of installing the chain damping and shock absorber system are provided.

A chain damping and shock absorber system for a chain includes one or more damping devices, each damping device installed to a segment of the chain, such that the chain and the one or more damping devices installed to a chain segment form a damped and compressed chain assembly. In response to a tensile force applied to the chain, the chain segment is extendable to an extended length which is between its compressed length and its full length. Methods of installing the chain damping and shock absorber system are provided.

A method for controlling the length of a sprocket chain of a chain type includes alternately arranged inner chain links and outer chain links that are connected together by, means of a chain joint, wherein each outer chain link has two outer plates, each of which comprises two openings and two pins that are pressed into the openings of the outer plates, each pin of the outer chain links having a joint region, which contacts the inner chain link and has a joint diameter, and two joining regions, which are pressed into the openings of the outer plates and have a joining diameter. The method prevents the disadvantages known from the prior art and in particular leads to a simple chain length control. For this purpose, the method has the following steps: providing a pin set comprising a plurality of pins, wherein at least two of the pins of the pin set have different joint diameters in the joint regions; and for at least one of the pins of the pin set; the joint diameter of the joint region differs from the joining diameter of the joining regions; ascertaining the pin joint region diameter required for a specified chain length; selecting the pin with the ascertained joint region diameter from the pin set; pressing the joining regions of the pin into the openings in the outer plates; and completing the sprocket chain. The use of a pin in such a method and to a pin set for such a method is also provided.

A method for controlling the length of a sprocket chain of a chain type includes alternately arranged inner chain links and outer chain links that are connected together by, means of a chain joint, wherein each outer chain link has two outer plates, each of which comprises two openings and two pins that are pressed into the openings of the outer plates, each pin of the outer chain links having a joint region, which contacts the inner chain link and has a joint diameter, and two joining regions, which are pressed into the openings of the outer plates and have a joining diameter. The method prevents the disadvantages known from the prior art and in particular leads to a simple chain length control. For this purpose, the method has the following steps: providing a pin set comprising a plurality of pins, wherein at least two of the pins of the pin set have different joint diameters in the joint regions; and for at least one of the pins of the pin set; the joint diameter of the joint region differs from the joining diameter of the joining regions; ascertaining the pin joint region diameter required for a specified chain length; selecting the pin with the ascertained joint region diameter from the pin set; pressing the joining regions of the pin into the openings in the outer plates; and completing the sprocket chain. The use of a pin in such a method and to a pin set for such a method is also provided.

A chain link having an electromagnetic force generation system between two chain links which including an attachable electromagnetic unit installed on multiple links. The chain having have a power source in order to generate an electrical current. As the electrical current passes, it creates repulsive and/or attractive force between chain links in order for them to be aligned with each other, achieving a rigid status.

A chain link having an electromagnetic force generation system between two chain links which including an attachable electromagnetic unit installed on multiple links. The chain having have a power source in order to generate an electrical current. As the electrical current passes, it creates repulsive and/or attractive force between chain links in order for them to be aligned with each other, achieving a rigid status.

A chain including chain-link units pivotally connected with each other. Each chain-link unit includes two lateral plates, a first link plate and a second link plate. Two ends of the lateral plates are defined as a first end and a second end. Two first pin-joint parts are configured near the first ends of the lateral plates respectively, and two second pin-joint parts are configured near the second ends of the lateral plates respectively. The chain-link units are pivotally connected with each other via the first pin-joint part and the second pin-joint part. Thus, the chain-link units are common, and each can be the starting chain-link unit, the middle chain-link unit or the ending chain-link unit. They can be easily assembled without screws, which further reduce the time consumption. Moreover, the noise made as the chain works can be reduced, and a buffering function can also be provided.

A chain including chain-link units pivotally connected with each other. Each chain-link unit includes two lateral plates, a first link plate and a second link plate. Two ends of the lateral plates are defined as a first end and a second end. Two first pin-joint parts are configured near the first ends of the lateral plates respectively, and two second pin-joint parts are configured near the second ends of the lateral plates respectively. The chain-link units are pivotally connected with each other via the first pin-joint part and the second pin-joint part. Thus, the chain-link units are common, and each can be the starting chain-link unit, the middle chain-link unit or the ending chain-link unit. They can be easily assembled without screws, which further reduce the time consumption. Moreover, the noise made as the chain works can be reduced, and a buffering function can also be provided.