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1. 发明授权

US11227730B2 Modular structure for safety switches for access control 有权
公开(公告)号：US11227730B2
公开(公告)日：2022-01-18
申请号：US16305397
申请日：2017-05-26
申请人： PIZZATO ELETTRICA S.R.L.
发明人： Marco Pizzato
IPC分类号： H01H9/28 , H01H3/02 , H01H27/00 , H01H27/06
摘要： A modular structure for safety switches for controlling access for machines and industrial plants comprises a casing (2) housing switching means for controlling one or more circuits of the machine or plant, drive means adapted to interact with the switching means upon the opening/closing of the access, an auxiliary module (3-3v) housing at least one control (4i-4v) adapted to be manually operated to operate on the switching means and/or the drive means and comprising a box hollow body (5) having at least one opening (6) for inserting the control (4i-4v) provided with first means for removably connecting the control (4i-4v), the latter being selected within a series of controls (4i-4v) having functions different from each other and each provided with a fastening rod (7i-7v) adapted to be inserted in the opening (6) of the box body (5) and provided with second connecting means complementary to the first connecting means.

2. 发明申请

US20210230904A1 SAFETY HANDLE FOR THE CONTROL OF ACCESS FOR MACHINES OR INDUSTRIAL PLANTS 有权
公开(公告)号：US20210230904A1
公开(公告)日：2021-07-29
申请号：US17059441
申请日：2019-05-31
申请人： PIZZATO ELETTRICA S.R.L.
发明人： Marco Pizzato , Simone ZONTA
IPC分类号： E05B47/00 , E05B1/00 , F16P3/14
摘要： A safety handle for the control of access to machines or industrial plants comprises a main body (3, 4) adapted to be gripped by a user for moving the movable part (M) of the access (A), fixing means for fixing the main body (3, 4) to the movable part (M), an actuator (2) suitable to be associated with the main body (3, 4) to interact with control means associated with the access (A) upon closure thereof for enabling the machine or industrial plant to be controlled. The main body (3, 4) houses thereinside one or more signalling and/or control devices (25, 26) provided with electrical connection means for connection to one or more power and/or service circuits of the machine or industrial plant, at least one of the signalling and/or control devices comprising one or more light sources (25) adapted to emit a light beam.

3. 发明授权

US10049843B2 Electronic-operated safety switch 有权
公开(公告)号：US10049843B2
公开(公告)日：2018-08-14
申请号：US14895727
申请日：2014-12-08
申请人： PIZZATO ELETTRICA S.R.L.
发明人： Marco Pizzato
IPC分类号： H01H50/16 , H01H50/02 , H03K17/945 , H03K17/94 , H01H50/32 , H01H27/00 , H03K17/95
摘要： An electronic operated safety switch has a switching device which houses a switch. The switch is operatively connected to a control or service circuit. The electronic operated safety switch also has an operating device configured for engaging the switch. The switching device comprises a head housing a sensor, and a case housing a lock. The operating device is adapted to send a signal to the sensor, thereby controlling the switch. The switch comprises an actuator housed in the case, the actuator configured to operate on the lock upon the receiving by the sensor of the signal.

4. 发明授权

US11480937B2 Safety switch with differentiated CPU 有权
公开(公告)号：US11480937B2
公开(公告)日：2022-10-25
申请号：US16462557
申请日：2017-11-21
申请人： PIZZATO ELETTRICA S.R.L.
发明人： Marco Pizzato
IPC分类号： G05B19/042
摘要： A safety switch with differentiated CPUs comprises a switching device (2) associated with a fixed part of an access to be controlled and having switching means connected to one or more circuits of the system for the opening/closing thereof, a driving device (3) associated to a movable part of the access to interact with the switching means for opening/closing of one or more circuits, control means (6) associated with the switching device (2) and adapted to receive input signals from the circuits through respective communication buses for sending an error signal and/or for stopping the system in case of no signal or detection of non-compliance, wherein the control means (6) comprise a main CPU (7) connected with the communication buses (9) associated with safety functions and at least one auxiliary CPU (8) connected solely to the communication buses (12) associated with circuits and/or devices not related to safety conditions.

5. 发明授权

US11151822B2 Safety switch for controlling the access to industrial machines or plants 有权
公开(公告)号：US11151822B2
公开(公告)日：2021-10-19
申请号：US16762187
申请日：2018-10-31
申请人： PIZZATO ELETTRICA S.R.L.
发明人： Marco Pizzato , Giuseppe Pizzato
IPC分类号： G07C9/00 , F16P3/08 , G06K7/10
摘要： A safety switch for controlling the access to industrial machines comprises a switching device having switching means, an actuator device (3) to interact with the switching means at the opening/closing of the access for passing from a removed condition to an inserted condition, locking/unlocking means adapted to lock the actuator device on the switching device following their mutual interaction, an electronic control unit having a first communication channel with a first inlet and a first outlet and a second communication channel with a second inlet and a second outlet, wherein said first inlet and said second outlet are of safe type and adapted to vary their state after detecting the condition of said actuator device and wherein said electronic control unit is adapted to vary the state of said first outlet and said second outlet upon detection respectively of a first and a of second condition for said actuator device.

6. 发明授权

US10892123B2 Safety switch with detection of the driving of an auxiliary unlocking control 有权
公开(公告)号：US10892123B2
公开(公告)日：2021-01-12
申请号：US16336531
申请日：2017-09-26
申请人： PIZZATO ELETTRICA S.R.L.
发明人： Marco Pizzato
IPC分类号： H01H27/00 , H01H50/32 , H03K17/95 , H03K17/97
摘要： A safety switch comprises a switching device (2) having a casing (4) housing switching means (5) connected to one or more circuits, an operating device (3) interacting with the switching means (5) for opening/closing the circuits, an unlocking mechanism (13) having an unlocking pin (14) translating with a maximum stroke from a locking position of the access to an unlocking position to operate the opening of the switching means (5), detection means (17) of the stroke of the unlocking pin (14) having a first detector (18) of the start of the stroke of the unlocking pin (14), an auxiliary unlocking control (25, 26) operatively connected to the unlocking mechanism (13) from a rest position to an operative position of unlocking of the access and promote the translation of the unlocking pin (14) The detection means (17) comprise an auxiliary detector (31) for detecting the actuation of the auxiliary unlocking control (25, 26).

7. 发明授权

US09819342B2 Hand-operated safety switch with time delay 有权
公开(公告)号：US09819342B2
公开(公告)日：2017-11-14
申请号：US14895942
申请日：2014-12-08
申请人： PIZZATO ELETTRICA S.R.L.
发明人： Marco Pizzato
IPC分类号： H02H11/00 , H03K17/95 , H01H27/00 , H03K17/965 , H03K17/968
CPC分类号： H03K17/95 , H01H27/002 , H03K17/965 , H03K17/968 , H03K2217/958
摘要： An hand-operated safety switch with time delay (1) comprises a switching device (2) adapted to be anchored to a fixed part of the protection and provided with switching means (5) adapted to be connected to a plant to be controlled, an operating device (3) adapted to be anchored to a movable part of the protection for interacting with the switching means (5) upon the closing of the movable part. The switching device (2) comprises a locking mechanism (9) associated with the switching means (5) and adapted to selectively hold/release the operating device (3) and hand-operable unlocking means (10) operatively coupled with the locking mechanism (9) for unlocking the operating device (3) with a predetermined time delay with respect of the switching of the power supply circuit by the switching means (5). The switching device (2) has sensor means (13) operatively coupled with the switching means (5) for modifying their operative condition in function of an inlet signal. The operating device (3) also comprises a transmitter (14) adapted to send a proximity signal to be received as input by the sensor means (13) for controlling the switching means (5) when said transmitter (14) is place at a predetermined minimum distance from the sensor means (13). The locking mechanism (9) also comprises an inner passage (29) adapted to allow the passage of means for connecting the sensor means (13) with the switching means (5) avoiding the interference with the unlocking means (10).

8. 发明申请

US20220262186A1 SAFETY SWITCH WITH PUSH-BUTTON PANEL 有权
公开(公告)号：US20220262186A1
公开(公告)日：2022-08-18
申请号：US17624861
申请日：2020-06-30
申请人： PIZZATO ELETTRICA S.R.L.
发明人： Marco Pizzato , Simone ZONTA
IPC分类号： G07C9/29 , H01H13/14 , H01H3/02 , F16P3/08
摘要： A switch comprises a switching device (3) housing switching means adapted to be operatively connected to one or more circuits of the plant, an actuator device (2) to interact with the switching means at the time of opening/closing of the access, a push-button station (12) provided with one or more controls (13) designed to operate on one or more of the circuits of the plant. The push-button panel (12) comprises a shell (14) provided with the controls (13) and means for anchoring to the fixed part (F) of the access (A) adapted to allow the rotation of the shell (14) around a rotation axis (R), so as to vary its orientation with respect to said switching device (3) and/or to control and/or signalling circuits.

9. 发明申请

US20220251876A1 SAFETY SWITCH WITH TOUCH PANEL FOR MONITORING ACCESS TO MACHINES OR INDUSTRIAL PLANTS 有权
公开(公告)号：US20220251876A1
公开(公告)日：2022-08-11
申请号：US17624860
申请日：2020-06-30
申请人： PIZZATO ELETTRICA S.R.L.
发明人： Marco Pizzato , Simone ZONTA
IPC分类号： E05B47/00 , E05B39/00 , G05B19/406
摘要： A safety switch comprises a switching device having a casing housing electric and/or electronic control means adapted to be connected with one or more circuits, an operating device adapted to be anchored to a movable part of the access to interact with the switching means when the access is opened/closed for the opening/closure of the circuits, means for detecting the opening of the access associated with the switching device and with the operating device for sending a stop command of the machine or plant upon the detection or request for the opening of the access, driving means for sending activation/deactivation and/or signalling controls and that comprise a touch monitor provided with one or more virtual controls and at least one microprocessor suitable for associating the virtual controls with a control and/or signalling function.

10. 发明授权

US11211213B2 Safety switch with detection of the end stroke of the unlocking mechanism 有权
公开(公告)号：US11211213B2
公开(公告)日：2021-12-28
申请号：US16336507
申请日：2017-09-26
申请人： PIZZATO ELETTRICA S.R.L.
发明人： Marco Pizzato
IPC分类号： H03K17/95 , H03K17/97 , H01H27/00 , H01H50/32
摘要： A safety switch with detection of the end-stroke of the unlocking mechanism adapted to supervise a safety access of a machine or industrial plant comprises a switching device (2) adapted to be associated to the fixed part of an access to be supervised and having switching means (5) adapted to be operatively connected to one or more control and/or service circuits of the plant for the control thereof, an operating device (3) associated to a movable part of the access to interact with the switching means (5) at the time of opening/closing of the access for opening/closing of one or more circuits, an unlocking mechanism (13) housed in the switching device (2) and having an unlocking pin (14) adapted to translate with maximum predetermined stroke from a blocking position of the access to an unlocked position to determine the opening of the switching means (5), means (17) for the detection of the stroke of the unlocking pin (14) comprising a first detector (18) adapted to detect the start of the stroke of the unlocking pin (14) and a second detector (19) adapted to detect the end of the stroke of the unlocking pin (14).

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