Presently described is a device (1) for adjusting the angle of disc sections for agricultural harrows which comprises at least one articulation element (10) configured to be pivotally attached to a beam (200) of an agricultural harrow (2), the articulation element (10) being configured to be pivotally attached to an adjustment shaft (20), thus allowing the angular adjustment of the beams of the agricultural harrow sections in both a horizontal plane and a vertical/transverse plane, comprising simple construction when compared to solutions existing in the prior art, making use of few components to allow both adjustments, and providing simple, practical and fast operation, requiring few manipulation steps.

A tillage implement, a tillage machine, and a method of tilling soil is provided. The tillage implement includes a mounting bracket that couples to a rolling frame, a shank pivotably coupled to the mounting bracket via a hinge assembly, a soil working tool operatively coupled to a distal end of the shank, and a preload assembly for moving the shank to a loaded position that is rotationally offset from an unloaded position. The tillage machine includes a rolling frame that is pulled by a tow vehicle when tilling a field and multiple ones of the tillage implements operatively coupled to the rolling frame that contact and till the field. And the method includes attaching the tillage implement to a rolling frame, preloading the hinge assembly by moving the shank to a loaded position that is rotationally offset from the unloaded position, and contacting the soil with the soil working tool.

An agricultural implement assembly, which may comprise a support frame and a tine support structure for supporting a plurality of tine members. The assembly may comprise a clamping mechanism operable for securing the tine members to the tine support structure. The clamping mechanism comprises an upper clamping arm, a lower clamping arm and a medial connecting member which are operable to securely hold or otherwise constrain the tine members against or in close proximity to the tine support structure. The clamping mechanism may comprise a tine angled portion engaging component operable to engage an upper surface of the angled end portion of the tine member. The upper and lower clamping arms may comprise at least one upper ridge and at least one lower ridge for engaging in contact with a first portion and a second portion respectively of outward facing surface regions of the tine support structure.

An agricultural implement assembly, which may comprise a support frame and a tine support structure for supporting a plurality of tine members. The assembly may comprise a clamping mechanism operable for securing the tine members to the tine support structure. The clamping mechanism comprises an upper clamping arm, a lower clamping arm and a medial connecting member which are operable to securely hold or otherwise constrain the tine members against or in close proximity to the tine support structure. The clamping mechanism may comprise a tine angled portion engaging component operable to engage an upper surface of the angled end portion of the tine member. The upper and lower clamping arms may comprise at least one upper ridge and at least one lower ridge for engaging in contact with a first portion and a second portion respectively of outward facing surface regions of the tine support structure.

A tillage implement, a tillage machine, and a method of tilling soil is provided. The tillage implement includes a mounting bracket that couples to a rolling frame, a shank pivotably coupled to the mounting bracket via a hinge assembly, a soil working tool operatively coupled to a distal end of the shank, and a preload assembly for moving the shank to a loaded position that is rotationally offset from an unloaded position. The tillage machine includes a rolling frame that is pulled by a tow vehicle when tilling a field and multiple ones of the tillage implements operatively coupled to the rolling frame that contact and till the field. And the method includes attaching the tillage implement to a rolling frame, preloading the hinge assembly by moving the shank to a loaded position that is rotationally offset from the unloaded position, and contacting the soil with the soil working tool.

A tillage implement, a tillage machine, and a method of tilling soil is provided. The tillage implement includes a mounting bracket that couples to a rolling frame, a shank pivotably coupled to the mounting bracket via a hinge assembly, a soil working tool operatively coupled to a distal end of the shank, and a preload assembly for moving the shank to a loaded position that is rotationally offset from an unloaded position. The tillage machine includes a rolling frame that is pulled by a tow vehicle when tilling a field and multiple ones of the tillage implements operatively coupled to the rolling frame that contact and till the field. And the method includes attaching the tillage implement to a rolling frame, preloading the hinge assembly by moving the shank to a loaded position that is rotationally offset from the unloaded position, and contacting the soil with the soil working tool.

A working element is mounted on an agricultural machine having a deformable connecting structure including upper arms and lower arms. The connecting structure includes a system for adjusting the down-pressure having a movable mechanism and a reference member. The mechanism includes a lever and a resilient member that are articulated about a first axis. The mechanism allows an engaged state in which it is held against the reference member in a working position, subjecting the working element to a down-pressure, and an adjusting state in which it is movable about a lower axis with respect to the reference member. The mechanism includes a second axis about which the lever is pivotable in an intermediate state.

A working element is mounted on an agricultural machine having a deformable connecting structure including upper arms and lower arms. The connecting structure includes a system for adjusting the down-pressure having a movable mechanism and a reference member. The mechanism includes a lever and a resilient member that are articulated about a first axis. The mechanism allows an engaged state in which it is held against the reference member in a working position, subjecting the working element to a down-pressure, and an adjusting state in which it is movable about a lower axis with respect to the reference member. The mechanism includes a second axis about which the lever is pivotable in an intermediate state.

A seed planting unit of an agricultural implement may include a wheel support arm having an upper portion and a lower portion, the upper portion defining a depth adjustment slot. A wheel may be rotatably supported by the lower portion of the wheel support arm, the wheel configured to contact the soil surface to define a penetration depth setting for the ground engaging tool relative to the soil surface. A depth adjustment lever is selectively movable relative to the wheel support arm to vary the penetration depth setting for the ground engaging tool. The lever may include a guide pin that is configured to be received within the depth adjustment slot, the guide pin configured to move within the depth adjustment slot as the depth adjustment lever is moved relative to the wheel support arm to adjust a vertical position of the wheel relative to the ground engaging tool.

A seed planting unit of an agricultural implement may include a wheel support arm having an upper portion and a lower portion, the upper portion defining a depth adjustment slot. A wheel may be rotatably supported by the lower portion of the wheel support arm, the wheel configured to contact the soil surface to define a penetration depth setting for the ground engaging tool relative to the soil surface. A depth adjustment lever is selectively movable relative to the wheel support arm to vary the penetration depth setting for the ground engaging tool. The lever may include a guide pin that is configured to be received within the depth adjustment slot, the guide pin configured to move within the depth adjustment slot as the depth adjustment lever is moved relative to the wheel support arm to adjust a vertical position of the wheel relative to the ground engaging tool.