公开(公告)号：WO2018225004A1

公开(公告)日：2018-12-13

申请号：PCT/IB2018/054111

申请日：2018-06-07

Applicant: COMER INDUSTRIES S.P.A.

Inventor： GUALDI, Gabriele ,  BRUNAZZI, Achille ,  TENCA, Gianni

IPC: A01D75/18

CPC classification number: A01D75/182

Abstract: A disk cutter bar (1), comprising a supporting frame (2), a plurality of knife supporting disks (3) which are associated with the frame (2) so that they can rotate about respective substantially parallel rotation axes (A), a gear transmission assembly (4) for the rotational actuation of the knife supporting disks (3), which comprises a series of idle gears (7) which move a plurality of pinions (8) for the rotational actuation each of a respective knife supporting disk (3), a pivot (9) for coupling to the corresponding knife supporting disk (3) that is associated with each one of the pinions (8), which is associated with the frame (2) by means of the interposition of rotational support means (10), has a first end (11) which is associated integrally with the corresponding pinion (8) and a second end (12) which is associated integrally with the disk and is provided with at least one shearing region (13) in an intermediate position between the ends, the pivot (9) being adapted to shear at the shearing region (13) following an overload of torque which acts thereon, forming a first portion (14) which comprises the first end (11) and a second portion (15) which comprises the second end (12), and retention means (16) associated with each one of the pivots (9) for the retention of the second portion (15) following the shearing of the pivot. The particularity of the invention resides in that the retention means (16) are associated with each one of the pivots (9) with axial play so as to allow the spacing in an axial direction of the second portion (15) with respect to the first portion (14) as a consequence of the shearing of the pivot, passing from an active configuration to a safety configuration of the corresponding knife supporting disk (3), and in that it comprises means (17) for the release of potential energy which are associated with each one of the pivots (9) and are adapted to activate as a consequence of the shearing of the pivot to space the second portion (15) from the first portion (14) and to keep the second portion in the safety configuration.

公开(公告)号：WO2022135801A1

公开(公告)日：2022-06-30

申请号：PCT/EP2021/082122

申请日：2021-11-18

Applicant: COMER INDUSTRIES S.P.A.

Inventor： TENCA, Gianni ,  BURATO, Andrea

IPC: F16D3/32

Abstract: A constant-velocity joint (1) with optimized lubrication, comprising a central body (2) which is associated with two internal forks (3) which protrude on opposite sides along a longitudinal axis (A) and is provided with an annular chamber (4) which is extended on a central plane (P) that is transverse to the longitudinal axis (A) and a guiding element (7) which is accommodated so that it can move on said central plane (P) within the annular chamber (4). Each one of the internal forks (3) is associated with a respective external fork (8) by means of the interposition of a corresponding cross (9) and each external fork (8) is provided with a respective tab (10) which is associated with the guiding element (7) by virtue of relative retention means (11) which form a first kinematic pair (12) adapted to allow at least one relative translation and a second kinematic pair (13) adapted to allow at least one relative rotation. The joint (1) furthermore comprises first sealing means (14) interposed between the walls (4a) of the annular chamber (4) and the guiding element (7), second sealing means (15) being associated with each one of the first kinematic pairs (12).

公开(公告)号：WO2020143954A1

公开(公告)日：2020-07-16

申请号：PCT/EP2019/082459

申请日：2019-11-25

Applicant: COMER INDUSTRIES S.P.A.

Inventor： TENCA, Gianni ,  BURATO, Andrea ,  TONDELLI, Massimo

IPC: F16D3/10 ,  F16D3/40 ,  F16D41/16

Abstract: A shaft-hub connection system (1) with angular play for the bidirectional transmission of driving torque, comprising a shaft (2), a hub (4) provided with a hole (5) inside which the shaft (2), and means (6) for connection with predefined angular play which are interposed between the hub (4) and said shaft (2). The connection means (6) comprise at least one functional assembly (7) which comprises a slot (8) in which a corresponding coupling element (9) is accommodated so that it can move and is adapted to assume alternately a first position, in which it is retracted within the slot (8), a second position, in which it protrudes partially with respect to it along a first orientation, and a third position, in which it protrudes partially with respect to it along a second orientation, elastic compression means (10) interposed between the slot (8) and the coupling element (9) for the movement of the element from the first position to the second or third position, a first seat and a second seat (11, 12) for the abutment of the coupling element (9), respectively in the second and third positions which are associated inside the hole (5) of the hub (4) and are angularly offset about the main axis (A). In the first position the coupling element (9) is completely accommodated within the slot (8) in order to maintain the configuration for free relative rotation, while in the second or third position the coupling element (9) protrudes partially from the slot in order to engage respectively the first seat (11) in the first active configuration or in the second seat (12) in the second active configuration.