A method of aligning a flat or profiled metal sheet with preformed notches on the two sides of the metal sheet when the sheet enters into a bender or folding machine directly from a roll forming machine linked or joined to the folder. The metal sheet has to be effectively aligned on the folder before folding to avoid potential damages to the metal sheet of not being properly squared or angled on bending while reducing the times to produce the folded products. Moreover, this method according to the invention allows the metal sheet to feed directly into the folder from the rollformer without having to pass through an intermediary transfer table or aligning device/machine before entering the folder for folding or manual alignment in the folder.

Provided is a regulator unit that when a pressure is set with respect to a workpiece having a certain weight, can be used for raising/lowering, suspension, or the like of a workpiece having a weight exceeding the weight with the set pressure maintained. The regulator unit is disposed between a drive cylinder and a fluid pressure source and includes a regulator body and a pressure control mechanism connected to the regulator body. The pressure control mechanism includes a cylindrical housing, an end surface cover, and an operation handle fixed to an end of a screw rod protruding from the end surface cover. The end surface cover is fixed to a resin ring fitted to an end of the cylindrical housing and is slidingly rotatable with respect to the end surface of the cylindrical housing integrally with the resin ring in accordance with the amount of turn of the operation handle.

Provided is a regulator unit that when a pressure is set with respect to a workpiece having a certain weight, can be used for raising/lowering, suspension, or the like of a workpiece having a weight exceeding the weight with the set pressure maintained. The regulator unit is disposed between a drive cylinder and a fluid pressure source and includes a regulator body and a pressure control mechanism connected to the regulator body. The pressure control mechanism includes a cylindrical housing, an end surface cover, and an operation handle fixed to an end of a screw rod protruding from the end surface cover. The end surface cover is fixed to a resin ring fitted to an end of the cylindrical housing and is slidingly rotatable with respect to the end surface of the cylindrical housing integrally with the resin ring in accordance with the amount of turn of the operation handle.

The invention relates to an actuator device comprising at least one output element, which can be applied with a fluid and can thereby be moved into at least one retaining position. An actuator is provided which can be operated in a pumping operation by controlling the actuator, in which at least one part of the actuator can be alternatingly moved in a first direction and in a second direction opposite the first direction via the controlling of the actuator, whereby the fluid can be conveyed to the output element in order to apply the output element with the fluid. A discharge channel is also provided, via which the fluid can be discharged from the output element.

The invention relates to an actuator device comprising at least one output element, which can be applied with a fluid and can thereby be moved into at least one retaining position. An actuator is provided which can be operated in a pumping operation by controlling the actuator, in which at least one part of the actuator can be alternatingly moved in a first direction and in a second direction opposite the first direction via the controlling of the actuator, whereby the fluid can be conveyed to the output element in order to apply the output element with the fluid. A discharge channel is also provided, via which the fluid can be discharged from the output element.

An actuating unit for a brake booster of a vehicle is disclosed, the actuating unit having a housing and a force transmission module which is received displaceably in the housing. The force transmission module has a first force transmission element, a second force transmission element which is couplable or coupled to the first force transmission element so as to transmit force, a spring device which is couplable or coupled to the second force transmission element so as to transmit force and an actuating element which is couplable or coupled to the first force transmission element. The spring device is configured to exert a spring force on the first and/or second force transmission element such that the first and/or second force transmission element is able to be held at least temporarily in a predetermined initial position. The first and/or second force transmission element is adjustable from the initial position counter to the spring force of the spring device by an adjustment path by a force exerted and/or transmitted onto the first force transmission element. The force transmission module is configured to decouple the first force transmission element from the spring device after a defined adjustment path, as well as a brake booster, vehicle brake system and subassembly therefor.

An actuating unit for a brake booster of a vehicle is disclosed, the actuating unit having a housing and a force transmission module which is received displaceably in the housing. The force transmission module has a first force transmission element, a second force transmission element which is couplable or coupled to the first force transmission element so as to transmit force, a spring device which is couplable or coupled to the second force transmission element so as to transmit force and an actuating element which is couplable or coupled to the first force transmission element. The spring device is configured to exert a spring force on the first and/or second force transmission element such that the first and/or second force transmission element is able to be held at least temporarily in a predetermined initial position. The first and/or second force transmission element is adjustable from the initial position counter to the spring force of the spring device by an adjustment path by a force exerted and/or transmitted onto the first force transmission element. The force transmission module is configured to decouple the first force transmission element from the spring device after a defined adjustment path, as well as a brake booster, vehicle brake system and subassembly therefor.

A protection system for a hydraulic cylinder piston having a barrel and a piston rod reciprocating therein, the protection system comprising a piston rod shield which is fixed with respect to the piston rod in use to move with respect to the barrel to cover the piston rod when the piston rod is exposed from the barrel and wherein the piston rod shield comprises a non-metallic flexible material which substantially returns to shape after deformation.

A protection system for a hydraulic cylinder piston having a barrel and a piston rod reciprocating therein, the protection system comprising a piston rod shield which is fixed with respect to the piston rod in use to move with respect to the barrel to cover the piston rod when the piston rod is exposed from the barrel and wherein the piston rod shield comprises a non-metallic flexible material which substantially returns to shape after deformation.

A sensor system for monitoring a condition of a piston rod includes an interrogator system having a first coil winding coupled to a housing and radially spaced from the piston rod such that a gap is defined between the first coil winding and the piston rod. A second coil winding is coupled to the piston rod and is inductively coupled to the first coil winding. The second coil winding is configured to communicate with the first coil winding through a range of linear movement of the piston rod relative to the housing. A sensor is coupled to the second coil winding. The sensor is configured to measure a characteristic associated with the piston rod and generate a current in the second coil winding to transmit, via the inductive coupling with the first coil winding, an electrical output signal associated with the characteristic to the interrogator system.