Abstract: The present invention relates to a pressure regulating device (1), in particular a hand- or foot-operated hydraulic controller for a heavy construction machine, characterised in that it comprises an electrical or electronic means (20) for determining the position of the actuator (18) or the push button (7) including a proportional sensor comprising, on the one hand, a mobile member (21) following the movement of the actuator (18) or a push button (7) and, on the other hand, a contactless means (22) for detecting the position of the mobile member (21) secured to the body (2), as well as an anti-tilting system, a load sensing system for controlling the pressure increase, the idling delivery of the heat engine, or a flow sharing system, comprising such a pressure regulating device (1).

Abstract: Pressure regulator device comprising a body (1), a minimum of a pressure reducer and a damper mounted in control and damping cavities, respectively, in the body (1), and a control member (4) pivoting on an upper face (10) of the body (1). The device is noteworthy in that the control and damping cavities have open ends in a peripheral face (12) of the body (1) and the control member (4) has parts (47) that are opposite the peripheral face (12) in order to face the open ends of the respective control and damping cavities, from which control (21) and damping pushrods, respectively, project. The present invention has an application in the hydraulic remote controls of civil engineering machines.

Abstract: The invention concerns rotary control device for remote control of a moving vehicle, particularly a civil engineering works vehicle, an agricultural implement or a goods handling vehicle comprising two parts rotatably mobile relative to one another about an axis (A) and formed of a body (2) intended to be fixed to the handle of the remote control and an actuating part (6), the device also comprising first elastic means (13) including a winding (14) and two mobile branches (15, 16), the first actuating part being immobilized, in a position of equilibrium (P), with respect to a first member (2, 6). The device further comprises second elastic means (22) supported, on a mobile branch (15, 16) of the first elastic means (13) and, designed, in the position of equilibrium, to bear against a support portion (24) of the second member (2, 6).

Abstract: Pressure regulator device comprising a body (1), a minimum of a pressure reducer and a damper mounted in control and damping cavities, respectively, in the body (1), and a control member (4) pivoting on an upper face (10) of the body (1). The device is noteworthy in that the control and damping cavities have open ends in a peripheral face (12) of the body (1) and the control member (4) has parts (47) that are opposite the peripheral face (12) in order to face the open ends of the respective control and damping cavities, from which control (21) and damping pushrods, respectively, project. The present invention has an application us the hydraulic remote controls of civil engineering machines.

Abstract: Remote control for a mobile machine, in particular a heavy construction machine, agricultural or handling machine comprising a remote control body, a lever fixedly attached to a handle designed to be held by a user, means for connecting the lever to the body allowing a movement of the lever relative to the body on at least one axis, and means for detecting the relative movement of the lever relative to the body of the remote control, the signals originating from the detection means being designed for the control of a member of the mobile machine. The detection means are of the contactless type, and the remote control body comprises a sealed wall separating on the one hand the detection means that are situated on a first side of the sealed wall, and on the other hand, the lever and the means for connecting the lever to the body that are situated on a second side of the sealed wall.

Abstract: The invention relates to a rotary control device intended, in particular, for being fixed to a handle of a remote control of a heavy-construction machine, comprising: a housing to be fastened to the handgrip in a fixed manner; a moving actuating part that rotates relative to the housing about an axis; first means for generating a rate control signal starting from the angular position of the moving actuating part, comprising a moving part driven by the actuating part and a part fixed to the housing, the moving actuating part being able to be driven by the operator in two opposite directions starting from a home position up to elastic means.

Abstract: The handle for the remote control of a moving vehicle, particularly a civil engineering works vehicle, an agricultural vehicle or handling vehicle according to the invention comprises a control device of the proportional type (4) including an actuating part (5) that is able to move relative to a body (6) integral with the handle, and return means (11) for returning the actuating part (5) to a rest position.

Abstract: The invention concerns rotary control device for remote control of a moving vehicle, particularly a civil engineering works vehicle, an agricultural implement or a goods handling vehicle comprising two parts rotatably mobile relative to one another about an axis (A) and formed of a body (2) intended to be fixed to the handle of the remote control and an actuating part (6), the device also comprising first elastic means (13) including a winding (14) and two mobile branches (15, 16), the first actuating part being immobilized, in a position of equilibrium (P), with respect to a first member (2, 6). The device further comprises second elastic means (22) supported, on a mobile branch (15, 16) of the first elastic means (13) and, designed, in the position of equilibrium, to bear against a support portion (24) of the second member (2, 6).

Abstract: The invention relates to a hydraulic distributor comprising a casing, a pressurized fluid inlet, a fluid return port, at least two working ports, a slide which is housed in the casing, a passage which is provided in the casing in order to connect the inlet with the working ports, adjustment means which are connected to a load detection line channel, a supply bridge which opens into the slide hole on either side of the inlet chamber, and two main check valves which are borne internally by the slide, The inventive distributor further comprises two secondary check valves which are mounted in the longitudinal channels upstream of the main check valve heads and which are connected to torque slits which open into the hole in which the slide moves.

Abstract: The invention relates to a fluid distributor for a heavy-construction machine, comprising a body and a pressure-reducing means which is mounted in said body and comprises a pushrod arranged in a cavity of the body, a plunger being mounted in an oscillating manner. At least one guide in which the pushrod is displaced is immobilized in the cavity, a first seal and a second seal respectively ensuring the hydraulic sealing inside and outside the guide. Said guide comprises at least part of the upper guide and part of the lower guide which are nested inside each other and mutually define a recess facing the pushrod, the first seal being trapped in the recess.

Abstract: The invention relates to a remote control of mobile engines, in particular working, agriculture and load-handling machines used for generating control signals to a client's device by means of communications means and comprising at least one sensor indicating the position of a control handle, a unit for processing signals transmitted by at least one sensor and an actuator for transmitting control signals processed by the processing unit to the client's device. The remote control comprises test means for introducing a signal derived from a test signal transmitted by the client's device into the processing unit input and is used for transmitting an information set to the client's device in response to the test signal, wherein said information set comprises at least one response signal corresponding to the processing of the signal derived from the test signal by the processing unit.

Abstract: The invention relates to a remote controller for heavy construction machines with a body, comprising a cavity, running between a first outlet end and a base, a first pushrod, running between a head and a base, arranged to slide with a back and forth movement in the cavity along an axial direction, a handle which may pivot with relation to the body, whereby a skirt of said handle is in direct contact with the head. The first pushrod may furthermore be moved to an extended position opposite to the depressed position with relation to the idle position thereof. First elastic return means are arranged in the cavity to force the pushrod into the extended position thereof and detection means are provided to detect the position of the first pushrod.

Abstract: Remote control for a mobile machine, in particular a heavy construction machine, agricultural or handling machine comprising a remote control body, a lever fixedly attached to a handle designed to be held by a user, means for connecting the lever to the body allowing a movement of the lever relative to the body on at least one axis, and means for detecting the relative movement of the lever relative to the body of the remote control, the signals originating from the detection means being designed for the control of a member of the mobile machine. The detection means are of the contactless type, and the remote control body comprises a sealed wall separating on the one hand the detection means that are situated on a first side of the sealed wall, and on the other hand, the lever and the means for connecting the lever to the body that are situated on a second side of the sealed wall.

Abstract: The input element comprises a body provided with openings respectively connecting to the pump, the reservoir and enabling information return to the pump. The body comprises a bore enabling communication between the openings and which are respectively joined to the pump and the reservoir, whereby a piston is mounted therein in order to establish said communication or not, whereby an extremity thereof is subjected to the pressure of the pump and the other extremity is subjected to pressure for information return and subjected to the pressure of a spring. The pressure exerted by the spring is substantially equal to the lift pressure of the pump and the piston and/or body comprise openings for communication of the chambers disposed on the pump side and reservoir side when the distributor is in rest position.

Abstract: The invention relates to a control handle for a public works vehicle, comprising a core having an inner cavity. According to the invention, control elements are mounted to said core, said elements comprising buttons and/or sliding members which are intended to be actuated by an operator in order to enable the different functions of the vehicle to be controlled. In addition, at least part of the surface of the aforementioned core is covered with a casing comprising one layer of at least one low-pressure-cast thermosetting polymer foam.

Abstract: A control lever for a manipulator, used in particular for heavy construction machines, comprising a frame defining a cavity, and at least one control button which is actuated by an operator in order to control hydraulic jacks, characterized in that at least one control button comprises at least one lower insulating layer and one upper insulating layer placed on top of each other, whereby a lower conducting layer is fixed to the lower layer, and a second upper conducting layer is arranged opposite the first where the control button is arranged, both elements being separated in the absence of pressure exerted by the finger of the operator and being able to enter into contact when the pressure exerted when the pressure exerted by the finger of the operator is transmitted to the upper layer, whereupon said upper layer becomes deformed and transmits said movement to the upper conducting element, whereupon the contact between the lower conducting elements and upper conducting elements closes an electric circuit gen

Abstract: The invention concerns a fluid distributor, in particular a hydraulic manipulator comprising a body (5), a pressure reducing valve (2) mounted in the body comprising a plunger (3) mobile in translation and whereof the displacement is controlled by a push-rod (11), a control member (6) including at least one finger (10) for modifying the position of the push-rod, means forming a solenoid (15) mounted in the body, a frame (16) adapted to be driven in translation simultaneously with the push-rod. The dispenser further comprises means for catching (20) the frame on the finger delimiting a window wherein the finger projects substantially transversely, the push-rod being mounted so as to pass right through the frame and project into the window, and the finger being interposed between the catching means and the push-rod.

Abstract: The invention relates to a remote controller for heavy construction machines with a body, comprising a cavity, running between a first outlet end and a base, a first pushrod, running between a head and a base, arranged to slide with a back and forth movement in the cavity along an axial direction, a handle which may pivot with relation to the body, whereby a skirt of said handle is in direct contact with the head. The first pushrod may furthermore be moved to an extended position opposite to the depressed position with relation to the idle position thereof. First elastic return means are arranged in the cavity to force the pushrod into the extended position thereof and detection means are provided to detect the position of the first pushrod.

Abstract: The invention relates to a hydraulic distributor comprising a casing, a pressurised fluid inlet, a fluid return port, at least two working ports, a slide which is housed in the casing, a passage which is provided in the casing in order to connect the inlet with the working ports, adjustment means which are connected to a load detection line channel, a supply bridge which opens into the slide hole on either side of the inlet chamber, and two main check valves which are borne internally by the slide, The inventive distributor further comprises two secondary check valves which are mounted in the longitudinal channels upstream of the main check valve heads and which are connected to torque slits which open into the hole in which the slide moves.

Abstract: The invention relates to a fluid distributor for a heavy-construction machine, comprising a body and a pressure-reducing means which is mounted in said body and comprises a pushrod arranged in a cavity of the body, a plunger being mounted in an oscillating manner. At least one guide in which the pushrod is displaced is immobilised in the cavity, a first seal and a second seal respectively ensuring the hydraulic sealing inside and outside the guide. Said guide comprises at least part of the upper guide and part of the lower guide which are nested inside each other and mutually define a recess facing the pushrod, the first seal being trapped in the recess.