Abstract:
Guide for floating callipers of a vehicle disc brake, intended for being arranged between a support structure B of a disc brake and a floating calliper A, comprising: - a pin 20, intended for being fixed by a coupling portion 21 to the support structure B or to the floating calliper A, and for being slidingly guided with a sliding portion 22 inside a sliding seat C obtained in the floating calliper A or in the support structure B; - a bushing (30) intended for being inserted into the sliding seat C and for receiving internally in sliding relation the sliding portion 22; and - a closing element 40 removably associated to bushing 30 in opposite position relative to the coupling portion 21 for preventing the entrance of foreign matters into said guide 1. The invention is characterised in that the closing element 40 is arranged completely external to bushing 30.
Abstract:
A simulation device (1) for an electrically controlled braking apparatus (BBW) of a vehicle comprises an electric motor (90) having a motorised axis (Z) slant in relation to the translation axis (X) of the strut (14) of the pedal group (12), a contrast body (60) connected to the strut (14), a main abutment wall (52) and an elastic contrast element (70), disposed between the main abutment wall (52) and the contrast body (60). The method of applying the contrast action to the pedal (12) provides for activating, when the flattening action of the pedal by the user is terminated, the motor to achieve an inactive configuration in which the useful distance of maximum compression of the elastic contrast element (70) is minimal.
Abstract:
An electro-hydraulic actuator (1) for actuating a brake (2) with a hydraulic thrust unit comprises an electric motor (3), a converting mechanism (5) to convert a rotational motion of the motor (4) into a translational motion, a cylinder (8), and a piston (9) connected to the converting mechanism, wherein the converting mechanism (5) is configured so that, for a given angular speed of the drive shaft (4), the translation speed of the piston (9) decreases from a maximum value in a rear length (14) of the piston stroke to a minimum value in a front length (13) of the piston stroke.
Abstract:
A locking device of an electromechanically-operated brake caliper for a disc brake, comprising a ratchet comprising a rotating element (11) having at least one first cam and one first follower (13) pushed elastically against said rotating element, configured to act in conjunction with said at least one first cam to allow the rotation of the rotating element (11) in a first direction of rotation, and to prevent the rotation of the rotating element in a second direction of rotation, opposite to said first direction of rotation; a selector element (15) sliding between a first selector element position and a second selector element position, said selector element (15) being adapted to operate said first follower (13) so that, in said first selector element position, said selector element (15) keeps said first follower (13) in a disengaged position away from the rotating element (11) in which the application of a parking braking action is prevented, and so that, in said second selector element position, the selector element (15) keeps said first follower (13) in an engaged position in contact with said rotating element (11) in which a parking braking action can be applied; said selector element having a second cam (16) and said first follower (13) having a first follower opening (14) forming a second follower (9), said second cam (16) being configured to act in conjunction with said second follower (9) to operate said first follower between said engaged position and said disengaged position.
Abstract:
A disc brake caliper (4) comprising at least one central bridge (108) which extends atop at least one brake disc (8) between a side support portion (14) of the caliper (4) and side disc portion (16) of the caliper (4). The central bridge (108) is substantially fixed in the first connection end at the side support portion (14), and is substantially free at a second end, from the part of the side disc portion (16). The central bridge (108) is operatively affected by the side pads (48, 50) arranged from the part of the side disc portion (16), so to transmit, at least partially, the tangential forces transmitted by such side pads (48, 50) to the side support portion (14) of the caliper body (12).
Abstract:
A pad (14) for a disc brake comprises a supporting plate (16) to which is applied a layer of friction material (18). The supporting plate (16) has an extension in a tangential direction (t) which is greater than the tangential extension of the corresponding layer of friction material (18). The supporting plate (16) comprises extensions (20) which extend on both sides of the friction material (18) in a tangential direction (t), each of the two extensions defining a bearing surface (22) or a spring or resilient member (100). The supporting plate has a concave inner edge (16a), a convex outer edge (16b) and two opposite sides (16c) in which the extensions (20) cover the height of the plate or the extension of its sides (16c). The bearing surface (22) is designed to face towards the exterior of a body (12) of a calliper (10) in the assembled configuration of the disc brake.
Abstract:
A hydraulic and electromechanical service and parking disc brake (1) comprises a service braking system (20), having at least one hydraulic actuator (65), a parking braking system (21) having at least one electromechanical actuator (64) transmission irreversibility, a control system (22) connected to the service braking system (20) and to the parking system (21) and a user interface (23), wherein a translational member (17) of the electromechanical actuator (64) is restrained to be rotationally integral with respect to the caliper (2) by means of an anti-rotation shape coupling with a guide portion (35) which is integral with the caliper (2) and arranged on a rear side of the translational member (17), opposite to the free end.
Abstract:
The invention relates to an electro-hydraulic actuator (100) for actuating a brake caliper. The actuator comprises: an electric motor (1) with a drive shaft (2); a transforming mechanism (3) to transform a rotary motion of the drive shaft into a translational motion of a translatable portion configured to act on a hydraulic master cylinder of said brake; a first housing (5) to accommodate the transforming mechanism and support a second housing of the electric motor. Such a transforming mechanism includes a reduction gear (6; 36) configured to demultiply the rotary motion of the drive shaft. The reduction gear comprises a crown (12; 32) with inner toothing in one piece and rotationally locked. The actuator is characterized in that the crown comprises a front portion (42; 62) directly shape-coupled to and inserted in the second housing of the electric motor and a connection integral with the first housing of the transforming mechanism so as to achieve a precise centering between the electric motor and the reduction gear with respect to the axis of the drive shaft and with respect to a central axis (X) of the reduction gear.
Abstract:
A brake gear motor (1) comprising an electric motor (2) having a motor shaft (3); a reducer (4) operatively connected, with its input side (9), to said motor shaft (3), to receive a movement and a driving torque and transmit them with its side output (10) to the brake; a housing (5) having at least one chamber (6, 28, 29); said at least one chamber (6, 28, 29) being at least partly delimited by at least one chamber wall or mantle (7) wherein a support plate (8) is provided in said housing; said motor (2) is accommodated, at least in part, in said at least one chamber (6, 28, 29); said motor shaft (3) is supported freely rotatable in said support plate ( 8 ); said reducer (4) is accommodated in said at least one chamber (6, 28, 29); said reducer (4) is supported freely rotatable in said support plate (8); said housing (5) comprises a connection rim to the brake (11) suitable to couple said housing (5) to a brake calliper (12) so as to interface with said output side (10) of the brake and allow the movement of at least one brake pad (13) towards and away from a disc brake disc (14) and exert a braking action; and in which said support plate (8) divides said housing in three chambers (6, 28, 29), a first chamber (6) accommodates the output side (10) of the reducer (4), a second chamber (28) houses at least a part of the electric motor (2), a third chamber (29) houses the input side (9) of the reducer (4) or side of the reducer connected to the electric motor (2), wherein said second chamber (28) is closed by a first cover (40) substantially cup-shaped, selected from a set of cup-shaped covers, that forms a first cover compartment (46) of a predefined size and suitable for housing a portion of a specific size of electric motor (2), in order to adapt said brake gear motor group (1) to different applications, by changing only said first cover (40) in said of first covers, and keeping the housing (5) unchanged.
Abstract:
A wheel assembly (1) for a vehicle, uncommonly capable of a compact construction and ease of maintenance, comprises: - A wheel rim (2) suitable to rotate around an axis of rotation (a- a), defining an axial direction (A-A) parallel or coincident with said axis of rotation (a-a), an orthogonal radial direction (R-R), and a circumferential direction locally coincident with a tangential direction (T-T) orthogonal to the axial direction (A-A) and the radial direction (R-R), said wheel rim (2) having a radially outer side, or outer side (3), opposite the axis of rotation (a-a), and a radially inner side, or inner side (4), facing the axis of rotation (a-a), said rim being suitable to receive externally a tyre (5), and wherein said wheel rim forms internally a cylindrical chamber of the rim (54) delimited radially from said inner side (4); - a motor (306) comprising a rotor (307) and a stator (308); said rotor (307) being supported, free to rotate, on said stator (308); said stator being fixed to a stator support (120); said motor (306) being housed in the said cylindrical wheel rim chamber (54) of said wheel rim (2 ); - said rotor (307) is selectively, removably and rigidly connected to the inner side (4) of said wheel rim (2), avoiding the interposition of elastic members or damping members; - said assembly (1) also comprising a braking device (10), said device comprising a disc brake disc (11) having a radially outer edge (12) and a radially inner edge (13), said braking device (10) further comprising a disc brake caliper (14) selectively, removably and rigidly connected, directly or indirectly, to said stator support (120), said disk brake caliper (14) being placed with its active part (21) astride the inner edge (13) of said disc brake disc (ID; in which - said wheel rim (2) is made in two parts (15, 16) selectively and removably connected with each other to form a wheel rim body (17); and wherein - one of the two parts of said wheel rim (15) forms in a single piece at least one spoke (18) that protrudes radially towards the axis of rotation (a-a); and wherein - said disc (11) is connected with its outer edge (12) to said at least one spoke (18).