Antirollback Kit for CUT Loaders
Publication Date: 2017-Apr-18
The IP.com Prior Art Database
Title: Antirollback Kit for CUT Loaders
Brief Description of the Drawings: Figures 1‐5 contain various views of an arrangement of a loader attachment of a work vehicle, such as a
utility tractor (not shown).
Description: As shown in the attached illustrations and described below, a loader attachment arrangement that
provides for an improvement in loader bucket control during machine work operations, is disclosed.
The disclosed system consisting of 2 sections (mechanic and hydraulic) to automatically adjust the angle of the attachment relative to the ground to a safe position when lifting the boom off the ground.
The mechanical section consists of a number of members (for example, 5 bars as shown) attached to the loader boom and pivoting with bushings and pins. The bars have slots arranged so as to allow the mechanism to activate the hydraulic section only in 1 direction and moves freely towards the opposite direction.
The hydraulic section consists of a valve (for example, a spool valve as shown) which is activated by certain positions and movements of the bars during machine operations and which redirects the hydraulic pressure from the rod end port to the head end port of the attachment cylinder.
The geometry, kinematics and overall arrangement of this disclosure provides a smooth response in the attachment with little or no interruption of the motion of the boom/attachment and with little or no swinging or rocking.
The loader’s boom and the attachment’s holder provide feedback through a series of members (or bars or links) to the hydraulic system in order to maintain a good working position of the attachment depending on the height of the boom to the ground and the angle of the attachment relative to the boom.
Figure 1 is a schematic side view of the mechanical arrangement of this disclosure with additional description.
Figure 2 is a schematic view of the hydraulic components of this disclosure with additional description.
Figure 3 illustrates a side view of the mechanical and hydraulic components of this disclosure (loader attachment not shown).
Figure 4 illustrates two side views of the arrangement of Figure 3 shown with a loader attachment in two different working positions and with additional description.
Figure 5 is a perspective, partial view of the arrangement of Figure 4 with additional description.
Having described the arrangement of this disclosure in detail and by reference to specific embodiments thereof, it will be apparent that modifications and variations are possible without departing from the scope of the disclosure as described above.