Device for fixation between a support and actuation member and a tool

Device for removable fixation between a support and actuation member and a tool, of the type employing, on the tool, a tang locally in the form of a tenon of dove-tail cross-section, on the member, a complementary mortise adapted to receive the tang by axial slide and, between the two, a removable fixation system, wherein:

• the tang locally comprises, on the one hand, two longitudinal edges defining the tenon and converging at an angle and, on the other hand, an opening located between said edges,
• the support member comprises a mortise, defined by two longitudinal edges, complementary to those of the tenon and presents, between said edges, a through housing opening in the mortise in order to be substantially in register with the opening in the state of engagement of the tenon in the mortise,
• the removable fixation system comprises a block placed in relation with the housing and bearing a mobile lock disposed in said housing, provided with a locking head and associated with means for manual control in position of retraction of the head with respect to the mortise and for actuation in locking position, in which the head is engaged in the tenon opening and acts on the edge thereof to urge said tenon in relative displacement in the mortise, in the direction of convergence of the edges.