Implement coupling device and a machine provided with such a device

An implement coupling device comprising:

• a linkage;
• and
• a wedge means arranged to prevent relative movement between a first portion and a second portion of the linkage, the wedge means being removable and insertable into a slot formed by the first portion and the second portion;
• wherein the first portion is connected to a first shaft and the second portion is connected to a second shaft;
• and
• wherein the first and second portions are connected by a pivot joint;
• wherein the wedge means is provided with a guide means disposed on an outer surface of the wedge means and extending in a direction of insertion of the wedge means, the guide means being configured to ensure that the wedge means is inserted in a predetermined orientation;
• wherein the implement coupling device further comprises:
• a coupling means provided with a first shaft;
• and
• an engagement means provided with a second shaft arranged parallel to the first shaft;
• wherein the coupling means and the engagement means are displaceable relative to each other in a direction at right angles to the first and second shaft axes to attach or release the implement;
• wherein at least one of the first and second portions making up the linkage is detachably fixable to its respective shaft by a locking means receivable in a longitudinal recess at right angles to the shaft axis and engagable with a tangential recess in the outer surface of the shaft;
• wherein the locking means provides a datum point determining an axial projection of the shaft relative to the linkage portion;
• and
• wherein the wedge means is arranged to be removably mounted between the first and second portions to fix them in position.