A gas spring (1) comprising: an outer casing (2) internally provided with a closed cavity (3); a piston-rod (4) which is fitted in the outer casing (2) in axially slidable manner and is structured so as to form/delimit, inside said closed cavity (3), a variable-volume closed chamber adapted to contain a pressurized gas; and one or more annular gaskets (7, 10, 11) that are interposed between the piston-rod (4) and the outer casing (2) and/or between separate pieces (5, 6) of the outer casing (2) and at least one of which is made of a material transparent oorr semi-transparent to visible light.
F16J 15/3284 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structureSelection of materials
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
F16F 9/43 - Filling arrangements, e.g. for supply of gas
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
A gas spring (1) comprising: an outer casing (2) internally provided with a closed cavity (3); a piston-rod (4) which is fitted in the outer casing (2) in axially slidable manner and is structured so as to form/ delimit, inside said closed cavity (3), a variable- volume closed chamber adapted to contain a pressurized gas; and one or more annular gaskets (7, 10, 11) that are interposed between the piston-rod (4) and the outer casing (2) and/or between separate pieces (5, 6) of the outer casing (2) and at least one of which is made of a graphite-filled and/or carbon fibre-filled polymeric material.
F16J 15/3284 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structureSelection of materials
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
F16F 9/43 - Filling arrangements, e.g. for supply of gas
A gas spring (1) comprising: an outer casing (2) internally provided with a closed cavity (3); a piston-rod (4) which is fitted in the outer casing (2) in axially slidable manner and is structured so as to form/ delimit, inside said closed cavity (3), a variable- volume closed chamber adapted to contain a pressurized gas; and one or more annular gaskets (7, 10, 11) that are interposed between the piston-rod (4) and the outer casing (2) and/or between separate pieces (5, 6) of the outer casing (2) and at least one of which is made of a graphene-filled polymeric material.
B60G 11/27 - Resilient suspensions characterised by arrangement, location, or kind of springs having fluid springs only, e.g. hydropneumatic springs wherein the fluid is a gas
B60G 13/10 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type pneumatic
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
F16J 15/3284 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structureSelection of materials
A gas spring (1) comprising: an outer casing (2) having, on the inside, a first (3) and a second cavity (4) adjacent to one another and separated from one another by a dividing wall; a first oblong-shaped piston-rod (5), which engages said dividing wall in an axially slidable and fluid-tight manner, so as to project cantilevered inside both cavities (3, 4) and form/delimit, inside said first cavity (3), a variable-volume closed chamber (6) containing pressurized gas; and a second oblong-shaped piston-rod (7), which is fitted in the outer casing (2) in an axially slidable and fluid-tight manner, so as to project cantilevered outside the casing (2) and, at the same time, also project cantilevered inside the second cavity (4) so as to form/ delimit, inside said second cavity (4) and together with the first piston-rod (5), a variable-geometry closed chamber (8) containing incompressible liquid.
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/43 - Filling arrangements, e.g. for supply of gas
8.
FILLING METHOD A GAS SPRING AND MACHINE IMPLEMENTING SUCH METHOD
Filling method a gas spring (1) comprising: an outer casing (2) made up of a cup-shaped body (5), a plug body (6) that is at least partially fitted into the cup-shaped body (5) in so as to delimit a closed cavity (3), and at least one annular sealing gasket (7) interposed between the plug body (6) and the cup-shaped body (5) to prevent the leakage/ passage of the pressurized gas between the two elements; a rod-piston (4), which is fitted into the outer casing (2) in axially-slidable manner, and is structured so as to form/ delimit, together with the inner cavity (3) of the casing, a variable volume closed chamber capable of containing a pressurized gas; the filling method comprising the steps of: arranging the annular sealing gasket (7) of the outer casing (2) inside the cup-shaped body (5) in a non-sealing position wherein the annular sealing gasket (7) allows the passage of gas from and to said closed cavity (3); introducing the pressurized gas into the closed cavity (3) by passing it through the interstitial space between said cup-shaped body (5) and said plug body (6); and finally arranging/moving the annular sealing gasket (7) in a sealing position wherein the annular sealing gasket (7) of the outer casing (2) fluid tight isolates/seals said closed cavity (3).
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/43 - Filling arrangements, e.g. for supply of gas
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
Goods & Services
Metal parts of gas-filled springs for use in moulding
plants; components and accessories for gas-filled springs
for use in moulding plants, specifically fittings, pipes,
manifolds, pipe clamps, compensation tanks, reservoirs and
backing plates; metal backing plates or plates for rods of
gas-filled spring cylinders. Gas-filled springs for use in moulding plants.
A gas spring comprising: a cup-shaped body; a movable piston which is inserted in an axially slidable manner in the cup-shaped body and is coupled to the cup-shaped body in a fluid-tight manner, so as to delimit a variable-volume closed chamber adapted to contain a pressurised gas; and a safety plug provided with a shank which extends in pass-through manner in the bottom wall of the cup-shaped body, and protrudes cantilevered within the cup-shaped body so that its distal end can be reached/struck by the movable piston in the case of overtravel; the distal end of the shank having a substantially tubular structure that directly communicates with the closed chamber.
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/43 - Filling arrangements, e.g. for supply of gas
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
A gas spring (1) comprising: a cup-shaped body (2); a movable piston (3) which is inserted in axially slidable manner in the cup-shaped body (2) and is coupled to the cup-shaped body (2) in fluid-tight manner, so as to delimit a variable -volume closed chamber (4) adapted to contain a pressurised gas; and a safety plug (8) provided with a shank (12) that extends in pass-through manner in the bottom wall (10) of the cup-shaped body (2), and protrudes cantilevered within the cup-shaped body (2) so that its distal end can be reached/ struck by the movable piston (3) in the case of overtravel; the shank (12) of the safety plug (8) being provided with a gas discharge duct (14) which is hermetically closed by a breakable septum (15) at the distal end of the shank (12); the distal end of the shank (12) being also provided with a central protuberance/projection (16) that extends cantilevered from the breakable septum (15), on the side opposite the gas discharge duct (14); and a protruding annular collar (17) that surrounds and extends cantilevered beyond the breakable septum (15) so as to encircle the central protuberance/projection (16) while remaining spaced from the same central protuberance/ projection (16).
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/43 - Filling arrangements, e.g. for supply of gas
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
A gas-filled cylinder (10), particularly for a damping device (1) with single manifold (4), the cylinder (10) cornprising:- a tubular jacket (11), closed at one end by an annular head portion (12),- a rod (13) with a piston (14) which translates inside the jacket (11) through the head portion (12), the piston (14) being directed toward the inside of the jacket (11), the jacket (11) and the piston (14) defining a portion of an expansion/compression chamber (17) for the gas,- at least one sealing element (16) between the piston (14) and the internal surface (15) of the jacket (11).The cylinder (10) has at least one safety hole (18) on the internal surface (15) of the jacket (11).
F15B 20/00 - Safety arrangements for fluid actuator systemsApplications of safety devices in fluid actuator systemsEmergency measures for fluid actuator systems
F16F 9/58 - Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder
14.
Apparatus for the controlled return of the stems in cylinders applied to stamping presses
a duct for loading the working fluid in the at least one cylinder and at duct/branch for the output of the working fluid from the hydraulic accumulator.
B30B 15/18 - Control arrangements for fluid-driven presses controlling the reciprocating motion of the ram
B21D 24/14 - Devices controlling or operating blank holders independently, or in conjunction with dies pneumatically or hydraulically
B30B 1/32 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
B30B 15/16 - Control arrangements for fluid-driven presses
F15B 1/02 - Installations or systems with accumulators
A pressure sensor for a gas-filled cylinder, which comprises a body from which a connector protrudes for coupling to an opening for filling a gas-filled cylinder with gas, a first through hole which passes through the connector and the body and a second hole which connects the first through hole to a sensor element which is connected electrically to at least one electronic board for processing a signal that can be detected by the sensor element.
G01L 19/08 - Means for indicating or recording, e.g. for remote indication
G01L 7/18 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements using liquid as the pressure-sensitive medium, e.g. liquid-column gauges
16.
Gas cylinder actuator with safety device for uncontrolled return of the piston-stem
such gas cylinder actuator comprises, between the first head and the piston portion, a bushing, which is coupled to the tubular jacket with elements of preventing translation with respect to the axis, and is designed to encounter the piston portion, the bushing being configured to at least be deformed in the event of impact with the piston portion owing to the uncontrolled return of the piston-stem, so as to allow the passage of the piston portion and the formation of a gas discharge passage between the piston-stem, the sealing elements and the passage and guidance hole.
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F15B 15/22 - Other details for accelerating or decelerating the stroke
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
the second head has a seat for the accommodation of a flow control element of the gas filling duct and corresponding sealing means, the flow control element comprising a tab for controlling a retracting stroke of the stem-piston, the control tab protruding from a body that has a lightened portion for triggering a controlled fracture or deformation in the event the control tab is crushed by the stem-piston.
F16F 9/43 - Filling arrangements, e.g. for supply of gas
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
F16F 9/48 - Arrangements for providing different damping effects at different parts of the stroke
18.
Gas cylinder actuator with overtravel indicator device
A gas cylinder actuator with overtravel indicator device, which includes a tubular containment jacket, an end face, an opposite annular guiding portion, a stem-piston arranged so as to pass through the annular guiding portion, wherein the stem-piston protrudes from the jacket in an axial direction, a chamber for pressurized gas being defined between the tubular jacket, the end face, the annular guiding portion for the stem-piston, an indicator device for indicating that overtravel for the stem-piston has occurred; and an annular body, which is inserted partially into a corresponding seat between the jacket and an annular portion so as to surround the outer lateral surface of an end portion of the annular guiding portion; the annular body rests in an axial direction on an element that protrudes radially within the jacket and is integral with the jacket.
F15B 15/28 - Means for indicating the position, e.g. end of stroke
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
19.
Gas cylinder actuator with overtravel safety device
between the tubular jacket, the heads and the stem-piston there being a chamber for pressurized gas, the gas cylinder actuator being characterized in that the tubular jacket has, at at least one of the portions affected by a head, a lightened portion that is preset to be deformed in case of compression in an axial direction, allowing the relative axial movement of the corresponding head toward the inside of the tubular jacket so as to form a gas discharge passage between the jacket, the head and the corresponding sealing element.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
between the tubular jacket, the heads and the stem-piston there being a chamber for pressurized gas, wherein at least one head of the two heads is constituted by a body that is separate with respect to the tubular jacket and is retained in the tubular jacket by means of an extraction-preventing shoulder that protrudes from the body of the head and is adapted to abut against a corresponding internal annular protrusion that protrudes radially from the internal surface of the tubular jacket.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
21.
Gas cylinder actuator with overtravel safety device
A gas cylinder actuator with overtravel safety device, comprising a tubular jacket for gas containment, which is closed hermetically at one end by a bottom provided with a gas filling valve and at the opposite end by a head portion, which is provided with a hole for the passage of a stem with a piston, the jacket, the bottom and the piston forming the gas expansion and compression chamber.
The head portion comprises an annular body, which is fixed internally to the jacket, and is provided with a central hole for the passage of the stem with the interposition of dynamic sealing elements, static sealing elements being interposed between the annular body and the jacket and an element for controlling the descending motion of a slider of a press with which the actuator is associated being provided and protruding from the annular body or from the jacket, the control element being preset to selectively move or break or deform in order to break or deform or render ineffective in general the static and dynamic sealing elements.
F16J 10/00 - Engine or like cylindersFeatures of hollow, e.g. cylindrical, bodies in general
F16J 10/02 - Cylinders designed to receive moving pistons or plungers
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/43 - Filling arrangements, e.g. for supply of gas
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
22.
Gas cylinder actuator with overtravel safety device
A gas cylinder actuator with overtravel safety device, comprising a tubular jacket for gas containment, which is closed hermetically at one end by a bottom provided with a gas filling valve and at the opposite end by a head portion, which is provided with a hole for the passage of a stem with a piston, the jacket, the bottom and the piston forming the gas expansion and compression chamber.
The head portion comprises an annular body, which is fixed internally to the jacket, and is provided with a central hole for the passage of the stem with the interposition of dynamic sealing elements, static sealing elements being interposed between the annular body and the jacket and an element for controlling the descending motion of a slider of a press with which the actuator is associated being provided and protruding from the annular body or from the jacket, the control element being preset to selectively move or break or deform in order to break or deform or render ineffective in general the static and dynamic sealing elements.
F16J 10/02 - Cylinders designed to receive moving pistons or plungers
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/43 - Filling arrangements, e.g. for supply of gas
F16J 10/00 - Engine or like cylindersFeatures of hollow, e.g. cylindrical, bodies in general
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
a chamber for pressurized gas being defined between the tubular jacket, the end face, the annular portion and the piston rod, the gas-operated spring comprising elements for clearly indicating that overtravel for the piston rod has occurred.
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
24.
Apparatus for the controlled pressurization of gas cylinder actuators
an electronic control and management unit connected to the at least one pressure sensor and to the electrically controlled valve elements to automate the opening/closing of the valve elements in dependence on the signals that arrive from the at least one pressure sensor.
F16K 31/02 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic
F17C 5/00 - Methods or apparatus for filling pressure vessels with liquefied, solidified, or compressed gases
F17C 5/06 - Methods or apparatus for filling pressure vessels with liquefied, solidified, or compressed gases for filling with compressed gases
F17C 13/02 - Special adaptations of indicating, measuring, or monitoring equipment
F16F 15/027 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using fluid means comprising control arrangements
25.
Gas cylinder actuator with overtravel safety device
A gas cylinder actuator having an overtravel safety device includes a tubular jacket for gas containment, which is closed at one end by a bottom provided with a gas filling valve and at the opposite end by a head portion. The head portion is provided with a hole for the passage of a stem with a piston, the jacket, the bottom and the piston forming the gas expansion and compression chamber. The head portion further includes an annular body, which is fixed internally to the jacket, and is provided with a central hole for the passage of the stem with the interposition of sealing elements, static sealing elements being interposed between the annular body and the jacket and an element for controlling the descending motion of a slider of a press with which the actuator is associated being provided and protruding from the annular body or from the jacket.
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16J 10/00 - Engine or like cylindersFeatures of hollow, e.g. cylindrical, bodies in general
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/43 - Filling arrangements, e.g. for supply of gas
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
26.
Gas cylinder actuator with safety system for controlled ejection of the piston stem
A gas cylinder actuator with a safety device for controlled ejection of the piston stem, which has, on the side of the region for fixing the head portion to the jacket, a region in low relief on the inner face of the jacket, designed to interrupt the seal provided selectively either by the gasket elements associated with the piston or by the gasket elements associated with the head portion, and normally operating against the inner face of the jacket, in case of separation of the head portion with an outward movement of the piston.
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
B21D 55/00 - Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
27.
Gas cylinder actuator with overtravel safety device
A gas cylinder actuator with overtravel safety device, comprising a tubular jacket which is closed by a bottom provided with a gas filling valve and at the opposite end by a head portion, which is provided with a hole for the passage of a stem with a piston; the gas cylinder actuator has, on the inner face of the jacket, in the compression chamber, a region in low relief designed to interrupt the seal provided by a gasket of the piston or the head portion, which act against the inner face.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
Goods & Services
Metal springs (not parts of machines); common metals and
their alloys; metal building materials; transportable
buildings of metal; materials of metal for railway tracks;
non-electric cables and wires of common metal; ironmongery,
small items of metal hardware; pipes and tubes of metal;
safes; goods of common metal not included in other classes;
ores. Elements for covering and protecting gas cylinders (parts of
machines); gas cylinders (parts of machines), punching
machines, punches for punching machines (parts of machines);
machines and machine tools; motors and engines (except for
land vehicles); machine coupling and transmission components
(except for land vehicles); agricultural implements other
than hand-operated; incubators for eggs.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
(1) Springs of metal, namely hardware springs, automotive shock absorbing springs, automotive suspension springs, valve springs; elements for covering and protecting gas cylinders as parts of machines, namely protective metal and plastic containers and covers being parts of gas cylinders for engines and motors for industrial machinery; gas cylinders for engines and motors for industrial machinery, punching machines, punches for punching machines; hardware springs, valve springs, metal springs for industrial machinery; metal rods being parts of cylinders for engines and motors for industrial machinery.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
Goods & Services
[ Springs of metal, other than for machines ] [ Elements for covering and protecting ] gas cylinders as parts of machines, [, namely, protective metal containers being parts of gas cylinder machine parts; gas cylinders as parts of machines; punching machines, namely, punching presses; punches for punching machines; ] springs as parts of machines; rods for cylinders being parts of machines
31.
GAS CYLINDER ACTUATOR WITH SAFETY SYSTEM FOR CONTROLLED EJECTION OF THE PISTON STEM
A gas cylinder actuator (10, 110) with a safety device for controlled ejection of the piston stem, which has, on the side of the region (19, 119) for fixing the head portion (14, 114) to the jacket (11, 111), a region in low relief (21, 121) on the inner face (22, 122) of the jacket (11, 111), designed to interrupt the seal provided selectively either by the gasket means (23) associated with the piston (16) or by the gasket means (123) associated with the head portion (114), and normally operating against the inner face (22, 122) of the jacket (11, 111), in case of separation of the head portion (14, 114) with an outward movement of the piston (16, 116).
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
A gas-operated integrated punching device with plate presser, including: a tubular containment body closed hermetically by a bottom and by a head that is perforated for the passage of a piston-operated plate presser moving within the tubular body; the plate presser being crossed coaxially by a punch connected to the tubular body; a compression and expansion chamber for loading pressurized gas being formed between the plate presser and the bottom such that the pressurized gas pushes the plate presser between a first fully extracted configuration with the outer end of the plate presser not in contact with a metal plate to be woked and protruding from the head by such a length as to affect the tip of the punch, and a second configuration at least partly retracted into the tubular body with the outer end of the plate presser in contact with a metal plate being worked.
A gas cylinder actuator (10) with overtravel safety device, comprising a tubular jacket (1 1) which is closed by a bottom (12) provided with a gas filling valve (13) and at the opposite end by a head portion (14), which is provided with a hole for the passage of a stem (15) with a piston (16); the gas cylinder actuator has, on the inner face (18) of the jacket (11), in the compression chamber (17), a region in low relief (19, 319) designed to interrupt the seal provided by the gasket means of the piston (16) or the head portion (314), which act against the inner face (18, 318).
A guard for gas cylinder actuators, comprising a rigid or deformable covering element, to be fixed to the stem of the gas cylinder actuator with which it is associated or to the translating body against which the gas cylinder actuator is intended to act, the covering element being contoured so as to extend radially from the fixing region in order to protect the stem and the opening of the body of the actuator from which the stem exits.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
F16P 3/02 - Screens or other safety members moving in synchronism with members which move to and fro
A safety device (10, 110) for spring/damper units comprising at least one part of the bottom (11, 111) or jacket (11a, 111a) of a spring/damper unit (12, 112) provided with a breakable partition (13, 113) that is subjected to the pressure determined by the gas compressed within a compression and expansion chamber (14, 114) of the spring/damper unit; the chamber (14, 114) is formed between the bottom (11, 111), the jacket (11a, 111a) and the piston (15, 115) of the unit (12, 112); the breakable partition (13, 113) has such a thickness as to break in the presence of a pressure inside the chamber (14, 114) that is greater than, or equal to, a preset pressure value; the breakable partition (13, 113) is associated with a longitudinally elongated element (16, 116) that lies within the compression and expansion chamber (14, 114) for such a length as to affect part of the piston (15, 115) during its descent before it performs a stroke that exceeds the predefined stroke; the longitudinally elongated element (16, 116) is supported by way of yielding supporting means adapted to allow, in the presence of a preset force that pushes, in the direction of operation of the unit (12, 112), against the longitudinally elongated element (16, 116), the element to move so as to break the breakable partition (13, 113) or so that it breaks itself, causing the opening, on the bottom (11, 111) or on the jacket (11a, 111a), of an outlet for the gas toward the outside.
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/43 - Filling arrangements, e.g. for supply of gas
36.
GAS-OPERATED INTEGRATED PUNCHING DEVICE WITH PLATE PRESSER
A gas-operated integrated punching device (10) with plate presser, comprising a tubular containment body (11) closed hermetically at one end by a bottom (12) and at the opposite end by a head (14) that is perforated for the passage of a piston-operated plate presser (15), which performs a translational motion within the tubular body (11); the plate presser (15) is crossed coaxially by a punch (16), which is jointly connected to the tubular body (11); a compression and expansion chamber (17) for pressurized gas is formed between the plate presser (15) and the bottom (12), the gas being loaded into the chamber by way of loading means inserted in the bottom (12) or in the tubular body (11); the pressurized gas pushes the plate presser (15) between two configurations, a first fully extracted configuration, in which the outer end (13) of the plate presser is not in contact with a metal plate (30) to be blanked or punched and protrudes from the head (14) by such a length as to affect the tip (16a) of the punch (16), and a second configuration, which is at least partly retracted into the tubular body (11) and in which the outer end (13) of the plate presser (15) is in contact with a metal plate (30) being worked.
A guard for gas cylinder actuators, constituted by a rigid or deformable covering element (11), to be fixed to the stem (12) of the gas cylinder actuator (13) with which it is associated or to the translating body against which the gas cylinder actuator (13) is intended to act, the covering element (11) being contoured so as to extend radially from the fixing region in order to protect the stem (12) and the opening (16) of the body (15) of the actuator (13) from which the stem (12) exits.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
38.
Apparatus for locking a sheet of metal suitable to be shaped in a press
An apparatus for locking a sheet of metal to be shaped in a press, comprising at least one fluid-operated actuator for translational motion of a first sheet presser, adapted to support, in an initial operation step a sheet of metal to be shaped, arranged above a first lower die part, coupled to the base of the press. The first presser cooperates with a second presser, coupled to the second die part associated with the upper ram of the press, in locking a perimetric portion of the sheet of metal during shaping. The actuators are part of a circuit for regenerating and supplying the working fluid, provided with devices for the delayed return of the actuators, upon opening the press, for shaped sheet protection.
