The automatic connection device includes a fixed connection plate, that is attached to or integrated with the tool holder and stationary relative to same, a movable connection plate, that is mounted movably on the tool so as to be able to both pivot and slide relative to same, and a centering device provided on the tool holder and the tool such that, when said tool is mounted and assembled mechanically on the tool holder, the connection plates are mutually centered and the electrical, pneumatic and/or hydraulic couplers of same are mutually connected so as to connect at least one of the electrical, pneumatic and/or hydraulic networks of the tool to that of the tool holder.

A common connection apparatus for coupling a power tool to an extensible arm and a power supply, the apparatus including a tool support base designed to support a tool, and a power supply support base designed to be affixed to the end of the extensible arm. The tool support base and the power supply support base each include a plurality of power connectors, positioned for engagement when the bases are aligned. The tool support base also has an alignment stab, which is received within a channel of the power supply support base. A plurality of pins are further positioned on the tool support base, to be received in apertures of the power supply support base. By this configuration, the bases may be aligned and engaged, facilitating the transmission of power from the machinery to which the arm is affixed, to the tool.

Improvements to work attachment assemblies and in particular work attachment assemblies for use with work machines such as excavators.

An anti-release mechanism of a pin-grabber coupler securing a work tool connected to a work machine is disclosed. The anti-release mechanism comprises an actuator, a wedge, a latch, a guide rod connecting the wedge and the latch, and a bias member on a first guide rod end of the guide rod biasing the latch and the wedge together. The wedge and the latch lock around a pin of the work tool and maintain the wedge against the pin of the work tool during a loss of engagement force of the wedge against the pin.

An attachment system for a work vehicle implement includes an implement attachment assembly. The implement attachment assembly includes a support structure coupled to a receiver assembly. The support structure includes a first mounting feature configured to engage a first corresponding mounting feature extending downwardly from a bottom surface of a work vehicle, and a second mounting feature configured to engage a second corresponding mounting feature extending downwardly from the bottom surface of the work vehicle. The first and second mounting features of the support structure are spaced apart from one another along a longitudinal axis relative to a direction of travel of the work vehicle, and the first and second mounting features of the support structure are configured to substantially block horizontal and vertical movement of the support structure relative to the work vehicle via engagement with the first and second corresponding mounting features of the work vehicle.

An attachment holder for construction equipment includes a movable-side pin guidance surface configured to guide a movable-side coupling pin to a movable-side pin accommodation portion. The attachment holder also includes an excessive closure prevention portion configured to prevent a movable-side jaw from closing excessively with respect to a stationary-side jaw to enable the movable-side coupling pin to come into contact with the movable-side pin guidance surface, whether the movable-side coupling pin is of an attachment for the construction equipment that has a minimum pin-to-pin spacing or a maximum pin-to-pin spacing, in a case in which the movable-side coupling pin is to be accommodated in the movable-side pin accommodation portion by operating, for example, an arm of the construction machine so as to move the movable-side jaw closer to the movable-side coupling pin after a stationary-side coupling pin is accommodated in a stationary-side pin accommodation portion.

The present invention relates to a safety device for a quick coupler and, more particularly, to a safety device for a quick coupler, the safety device having an improved structure that is configured to improve the structure of a locking device, the locking device preventing the fixing hook from being arbitrarily released from a locking engagement, by using a safety plate that is laterally moved in a sliding manner by an elastic force of a DIE spring after a fixing hook and a first attachment pin are assembled together.

There is provided an attachment coupling link, including: a cover having a pair of boom link coupling shafts coupled thereto in parallel with each other; a fixing hook fixedly coupled to a lower end of one side of the cover to have a first connection bar of an attachment removably coupled thereto; a pivoting hook coupled to a lower end of the other side of the cover to be pivotable about a pivoting hook pivoting shaft, a second connection bar of the attachment being removably coupled to the pivoting hook; a connection bar release prevention lever pivotably coupled to an upper end of the fixing hook; and an operating cylinder disposed between the fixing hook and the pivoting hook, the operating cylinder allowing the second connection bar to be mounted in or dismounted from the pivoting hook by adjusting a pivoting angle of the pivoting hook.

A system is suitable for connecting multiple implements to a three-point hitch of mobile machinery for controllable side-shifting movement of the connected implements. The system comprises first, second and third apparatuses, each apparatus comprising a first framework, a slidable second framework laterally slideable relative to the first framework, at least one connector supported by the slidable second framework for connecting the slidable second framework to one of the implements, and at least one driver connected to the first framework and the slidable second framework for driving the slidable second framework laterally back and forth relative to the first framework. The second apparatus is attached to one side of the first apparatus and the third apparatus is attached to the other side of the first apparatus.

An attachment coupling device for heavy industrial equipment, includes a coupler body coupled to operation links of the heavy industrial equipment, a fixed hook fixedly mounted to the coupler body, a movable hook rotatably coupled to the coupler body, an actuator connected to the movable hook and rotatably connected to the coupler, and a pin locking unit rotatable through operation of the actuator, to lock a first pin of the attachment coupled to the fixed hook and the movable hook, to which a second pin of the attachment is coupled. The pin locking unit includes a pivot body rotatably coupled to the coupler body and connected to the actuator, a hook support for locking the movable hook, a pin support for locking the first pin, and a locking elastic member for preventing the pivot body from excessively pivoting in a release direction thereof.