A rebar tying robot may include a rebar tying unit, a conveying unit configured to convey the rebar tying unit, and a control unit configured to control an operation of the conveying unit. The conveying unit may include a longitudinal movement mechanism configured to move the rebar tying robot in a front-rear direction, and a first three-dimensional distance sensor configured to output first point cloud data which represents a three-dimensional position of a subject in a first field of view by point clouds. The control unit may be configured to execute a first rebar extraction process in which the control unit extracts point clouds from the point clouds included in the first point cloud data and a rebar model generation process in which the control unit generates a rebar model based on the point clouds extracted in the first rebar extraction process.

A reinforcing steel bar binding machine is provided with: a second body part; a cover guide part attached to the second body part; and a first contact member (a second contact member) that is abutted against a reinforcing steel bar and moved. The cover guide part is provided with: a first guide recessed part and a second guide recessed part that movably guide the first contact member; and a first contact part against which the reinforcing steel bar is abutted.

A reinforcing steel bar binding machine is provided with: a second body part; a cover guide part attached to the second body part; and a first contact member (a second contact member) that is abutted against a reinforcing steel bar and moved. The cover guide part is provided with: a first guide recessed part and a second guide recessed part that movably guide the first contact member; and a first contact part against which the reinforcing steel bar is abutted.

A binding device including: a binding machine that binds reinforcing bars with a wire; and a transfer robot that moves the binding machine and the reinforcing bars positioned at a binding position in a direction of approaching and a direction of separating from each other by a relative movement of the binding machine and the reinforcing bars. The binding machine is configured to determine, when the binding machine starts an operation of binding the reinforcing bars with the wire, a timing of moving the binding machine and the reinforcing bars in the direction of separating from each other, and the transfer robot is configured to move the binding machine and the reinforcing bars in the direction of separating from each other at the determined timing.

Barbed wire repair apparatuses including (a) two members, each of the two members includes a barbed wire attachment or receiving apertures and an engaging surface having connection slot and (b) a connection device so that as connection devices insert into and through the connection slots and tightened to bring the engaging surfaces into contact and simultaneously tensioning the barbed wire at a break therein and methods for making and using same.

Barbed wire repair apparatuses including (a) two members, each of the two members includes a barbed wire attachment or receiving apertures and an engaging surface having connection slot and (b) a connection device so that as connection devices insert into and through the connection slots and tightened to bring the engaging surfaces into contact and simultaneously tensioning the barbed wire at a break therein and methods for making and using same.