A track chain member comprising a shoe member defining a track chain traveling direction and a lateral direction, the shoe member further defining a first lateral end, a second lateral end, and a ground engaging surface spanning from the one end to the other end; wherein the shoe member further defines a first side void proximate the first lateral end, a second side void proximate the second lateral end, and the first side void terminates a first predetermined distance from the first lateral end and the second side void terminates a second predetermined distance from the second lateral end.

A chain tool has a base body being cylinder like and having a groove formed in an end of the base body, and two wall portions being formed and faced each other on two sides of the groove. The two wall portions have two side surfaces. An inner thread portion is formed on the side surfaces along a direction of groove depth, the base body is laterally penetrated by the groove along a center of inner thread portion, a bottom portion connects the two wall portions and having a through hole formed therein and being coaxial to the inner thread portion; a drive bolt having a top rod and a screw rod being movably engaged with the inner thread portion, wherein the screw rod has a drive portion placed against to the top rod, the top rod is coaxially align to the through hole.

A chain tool has a base body being cylinder like and having a groove formed in an end of the base body, and two wall portions being formed and faced each other on two sides of the groove. The two wall portions have two side surfaces. An inner thread portion is formed on the side surfaces along a direction of groove depth, the base body is laterally penetrated by the groove along a center of inner thread portion, a bottom portion connects the two wall portions and having a through hole formed therein and being coaxial to the inner thread portion; a drive bolt having a top rod and a screw rod being movably engaged with the inner thread portion, wherein the screw rod has a drive portion placed against to the top rod, the top rod is coaxially align to the through hole.

A chain tool has two members each having a first edge formed with an opening to be engaged with the opening of the other member so that the two members can be pivoted with respect to each other. Each member has an opposite second edge provided with a recess and also has a guide groove in communication with the recess and the corresponding opening, wherein the recess is lightly deeper than the guide groove. Each member further has a rib extending along the corresponding first edge and projecting into the corresponding opening to form a protruding portion. When the openings of the two members are brought into engagement, the protruding portion of each member is moved along the guide groove of the other member into engagement in the recess of the other member.

A chain tool has two members each having a first edge formed with an opening to be engaged with the opening of the other member so that the two members can be pivoted with respect to each other. Each member has an opposite second edge provided with a recess and also has a guide groove in communication with the recess and the corresponding opening, wherein the recess is lightly deeper than the guide groove. Each member further has a rib extending along the corresponding first edge and projecting into the corresponding opening to form a protruding portion. When the openings of the two members are brought into engagement, the protruding portion of each member is moved along the guide groove of the other member into engagement in the recess of the other member.

What is described is a portable multifunctional tool having a handle portion and a tool accommodating portion having a tool function element arranged thereon configured to actuate a quick release chain fastener having two chain link plates and two chain link plate connection members. The tool function element has a first force exertion unit configured to exert a force on the first chain link plate connection member of the quick release chain fastener, and a second force exertion unit configured to exert a force on the second chain link plate connection member of the quick release chain fastener. The first force exertion unit and the second force exertion unit are translationally movable in relation to each other so as to actuate the quick release chain fastener by means of said translational movement. Moreover, the tool function element has a linear guide having a stationary first linear guide element and a second linear guide element movably arranged within the former, only one of the two force exertion units being arranged on the second linear guide element.

An opening aid for an energy guide chain with chain links. At least some of the chain links at their top side have a respective transverse leg which is arranged pivotably on a side plate and which can be fixed to the other side plate. The opening aid for guidance of the transverse legs upon opening thereof has a body extending in a working direction and a lateral extension having an inclined sliding deflection surface for the transverse legs. To simplify handling and structure of the opening aid it is proposed that the extension is mounted to the body movably relative thereto and is reciprocatingly movable between a working position in which the extension is arranged extending laterally from the body in operative guiding relationship for the transverse legs and a rest position in which the extension is arranged in inoperative guiding relationship of being moved away from the working position.

An opening aid for an energy guide chain with chain links. At least some of the chain links at their top side have a respective transverse leg which is arranged pivotably on a side plate and which can be fixed to the other side plate. The opening aid for guidance of the transverse legs upon opening thereof has a body extending in a working direction and a lateral extension having an inclined sliding deflection surface for the transverse legs. To simplify handling and structure of the opening aid it is proposed that the extension is mounted to the body movably relative thereto and is reciprocatingly movable between a working position in which the extension is arranged extending laterally from the body in operative guiding relationship for the transverse legs and a rest position in which the extension is arranged in inoperative guiding relationship of being moved away from the working position.

A chain tool has two members each having a first edge formed with an opening to be engaged with the opening of the other member so that the two members can be pivoted with respect to each other. Each member has an opposite second edge provided with a recess and also has a guide groove in communication with the recess and the corresponding opening, wherein the recess is lightly deeper than the guide groove. Each member further has a rib extending along the corresponding first edge and projecting into the corresponding opening to form a protruding portion. When the openings of the two members are brought into engagement, the protruding portion of each member is moved along the guide groove of the other member into engagement in the recess of the other member.

A chain tool has two members each having a first edge formed with an opening to be engaged with the opening of the other member so that the two members can be pivoted with respect to each other. Each member has an opposite second edge provided with a recess and also has a guide groove in communication with the recess and the corresponding opening, wherein the recess is lightly deeper than the guide groove. Each member further has a rib extending along the corresponding first edge and projecting into the corresponding opening to form a protruding portion. When the openings of the two members are brought into engagement, the protruding portion of each member is moved along the guide groove of the other member into engagement in the recess of the other member.