Valve comprising a shutter (2) rotating as one (A) with a shaft (3) and a sensor sensing the rotational position of the shaft (3), which comprises a target holder (4a) push-fitted onto the shaft (3), a plate (6) slipped onto the shaft (3), the target holder (4a) and the annular part (6a) being in on
Valve comprising a shutter (2) rotating as one (A) with a shaft (3) and a sensor sensing the rotational position of the shaft (3), which comprises a target holder (4a) push-fitted onto the shaft (3), a plate (6) slipped onto the shaft (3), the target holder (4a) and the annular part (6a) being in one and the same plane.
대표청구항▼
1. Valves and fittings apparatus comprising: a valve with a closure member (2) rotating in unison with a shaft (3),an actuator (A) driving the shaft (3) in rotation, andan annular sensor of the rotational position of the shaft (3) fitted on the shaft (3), characterised in thatthe sensor is interpose
1. Valves and fittings apparatus comprising: a valve with a closure member (2) rotating in unison with a shaft (3),an actuator (A) driving the shaft (3) in rotation, andan annular sensor of the rotational position of the shaft (3) fitted on the shaft (3), characterised in thatthe sensor is interposed, in the longitudinal direction of the shaft (3), between the valve and the actuator (A) and has a thickness, that is, the dimension in the longitudinal direction of the shaft (3), between 1.5 and 4 mm,the sensor including:an annular target-holder (4a) carrying a target (4) sensitive to an action at a distance and fitted on the shaft (3) in such a way as to rotate in unison therewith and to be able to be displaced in translation along the shaft (3),a plate-holder (5), the thickness of which is higher than the thickness of all the other components of the sensor,a small plate (6) fitted on the shaft (3) by way of an annular portion (6a) without being rotationally unified therewith, this portion (6a) containing two detectors (7, 8) of the target (4), at 90° one with respect to the other, andthe target-holder (4a) and the annular portion (6a) are in the same plane. 2. Apparatus according to claim 1, characterised in that the plate-holder (5) is gripped between a fixed plate (1a) of the valve and the actuator (A) so that the three parts are unified. 3. Apparatus according to claim 1, characterised in that the upper face of the small plate (6) is coated with a resin until it is flush with the upper face of the plate-holder (5). 4. Apparatus according to claim 3, characterised in that the small plate (6) contains a hole (16) opening into a casing (9) filled with resin arranged underneath the lower face of the small plate. 5. Apparatus according to claim 4, characterised in that the casing (9) has an opening (11a) for connection of an element for transmission of an electrical signal emitted by printed circuits of the small plate (6). 6. Apparatus according to claim 1, characterised in that the target (4) is fixed in the target-holder (4a) by moulding resin thereon. 7. Apparatus according to claim 5, characterised in that, after introducing and polymerising of the resin in the casing (9) and until the resin is flush with the upper face of the plate-holder (5), all the components comprising the plate-holder (5) the small plate (6), the detectors (7, 8), the casing (9), a battery (12), a connector (10) and an antenna (11), are bound in a sensor assembly (CP) without any possibility to separate them. 8. Sensor comprising: an annular target-holder (4a) carrying a target (4) sensitive to an action at a distance and fitted on a shaft (3) in such a way as to rotate in unison therewith and to be able to be displaced in translation along the shaft (3),a plate-holder (5) which forms the body of the sensor and the thickness of which is higher than the thickness of all the other components of the sensor,a small plate (6) fitted on the shaft (3) by way of an annular portion (6a) without being rotationally unified therewith, this portion (6a) containing two detectors (7, 8) of the target (4), at 90° one with respect to the other, andthe target-holder (4a) and the annular portion (6a) are in the same plane.characterised in that:the small plate (6) contains a hole (16) opening into a casing (9) filled with resin arranged underneath the lower face of the small plate, andthe plate-holder (5) the small plate (6), the detectors (7, 8), the casing (9), a battery (12), a connector (10) and an antenna (11), are bound in a sensor assembly (CP) without any possibility to separate them.
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