A visual position indicator assembly for limit switch boxes is provided. The indicator assembly has an indicator element configured to be fitted to a shaft of a driving assembly of a limit switch box, and the indicator element has a plurality of adjacent sectors featuring different colors and/or writings. The visual position indicator assembly further has a first mask and a second mask that are both provided with through apertures having the same size and arrangement and that are fitted coaxially to each other. One between the first mask and the second mask is rotatable with respect to the other one. Thanks to this configuration, it is possible to vary the angular width of the through apertures in order to adapt it to the real angular stroke of the indicator element.
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
A61N 1/36 - Applying electric currents by contact electrodes alternating or intermittent currents for stimulation, e.g. heart pace-makers
F16K 31/08 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet using a permanent magnet
A control device with limit switches is provided. The device has a container housing an electric circuit provided with one or more limit switches, and a driving assembly configured to control operation of a valve or an actuator through the limit switches of the electric circuit. The driving assembly has a shaft configured to be rotatably coupled to a valve or an actuator and one or more cams keyed on the shaft and is configured for driving the limit switches of the electric circuit. The shaft has a gripping surface and each cam has a radial clamping mechanism whose gripping members are arranged in correspondence of a through hole configured to allow to fit the cam onto the shaft.
H01H 13/18 - Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
H01H 3/16 - Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
H01H 3/18 - Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift the movement in one direction being intentionally by hand, e.g. for setting automatically cancelled trafficators
H01H 3/42 - Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
H01H 3/32 - Driving mechanisms, i.e. for transmitting driving force to the contacts
3.
VISUAL POSITIONING INDICATOR ASSEMBLY FOR LIMIT SWITCH BOXES
The invention relates to a visual position indicator assembly (100) for limit switch boxes, said indicator assembly comprising an indicator element (110) configured to be fitted to a shaft of a driving assembly of a limit switch box, said indicator element (110) having a plurality of adjacent sectors (111, 1 12) featuring different colors and/or writings. The visual position indicator assembly further comprises a first mask and a second mask (120, 130) that are both provided with through apertures (121, 122, 131, 132) having the same size and arrangement and that are fitted coaxially to each other. One between the first mask (120) and the second mask (130) is rotatable with respect to the other one. Thanks to this configuration, it is possible to vary the angular width of the through apertures in order to adapt it to the real angular stroke of the indicator element (110).
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
The invention relates to a control device (100) with limit switches, said device comprising a container (200) housing an electric circuit (300) provided with one or more limit switches (301, 302), and a driving assembly (400) configured to control operation of a valve or an actuator through said limit switches (301, 302) of said electric circuit (300), wherein said driving assembly (400) comprises a shaft (410) configured to be rotatably coupled to a valve or an actuator and one or more cams keyed on said shaft (410) and configured for driving the limit switches (301, 302) of the electric circuit (300). The shaft (410) comprises a gripping surface (41 1) and each cam (420) comprises a radial clamping mechanism whose gripping members (423) are arranged in correspondence of a through hole (421) configured to allow to fit the cam (420) onto the shaft (410).
H01H 13/18 - Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
H01H 3/16 - Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift
H01H 3/18 - Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. for a door switch, a limit switch, a floor-levelling switch of a lift the movement in one direction being intentionally by hand, e.g. for setting automatically cancelled trafficators
H01H 3/42 - Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
H01H 3/32 - Driving mechanisms, i.e. for transmitting driving force to the contacts
09 - Scientific and electric apparatus and instruments
Goods & Services
Electric devices for controlling valves, namely, limit switch boxes; electric devices for locating valves, namely, limit switch boxes; electric devices for monitoring valves, namely, limit switch boxes
