Device for actuating a pivoting closure member
First Claim
1. Device for actuating a pivoting closure member, comprising at least one rod (10, 11) articulated at one end on said closure member (14) and connected at its other end by coupling and transmission means to motor members, the motor members being mounted fixedly on a support and being constituted by at least one pneumatic linear actuator that imparts to a connection member (7) a reciprocating linear movement adapted to be transformed into movement of rotation, this movement of rotation being transmitted by a suitable transmission member (9) to said rod (10, 11), wherein the linear pneumatic actuator comprises a body formed from a forward portion (15) and a rear portion (16), gripping, at a joint plane between them, an external edge of a deformable membrane (3) so as to delimit at least one variable volume chamber adapted to be subjected either to atmospheric pressure or to an underpressure by means of an air inlet provided in said chamber, said membrane (3) comprising a substantially central opening closed by means of forward and rear cups (4 and 2) disposed on opposite sides of the membrane (3), the forward cup (4) being mounted fixedly to the connection member (7) the rear cup coming into abutment on a rear portion of a jack body when the chamber is subjected to underpressure.
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Accused Products
Abstract
An actuating device for a pivoting closure member of the type comprising at least one rod (10, 11) articulated at one end on the closure member (14) connected at its other end to motor members. According to the invention, the motor members mounted fixedly on a support are constituted by a pair of pneumatic linear actuators or a pneumatic linear actuator/return device which act on the respective ends of a member which interconnects them to opposite tractive forces that are non-simultaneous, so as to impart to the connecting member a linear reciprocating movement adapted to be transformed into rotational movement, this rotational movement being transmitted by a suitable transmission member (9) to the rod (10, 11).
21 Citations
5 Claims
- 1. Device for actuating a pivoting closure member, comprising at least one rod (10, 11) articulated at one end on said closure member (14) and connected at its other end by coupling and transmission means to motor members, the motor members being mounted fixedly on a support and being constituted by at least one pneumatic linear actuator that imparts to a connection member (7) a reciprocating linear movement adapted to be transformed into movement of rotation, this movement of rotation being transmitted by a suitable transmission member (9) to said rod (10, 11), wherein the linear pneumatic actuator comprises a body formed from a forward portion (15) and a rear portion (16), gripping, at a joint plane between them, an external edge of a deformable membrane (3) so as to delimit at least one variable volume chamber adapted to be subjected either to atmospheric pressure or to an underpressure by means of an air inlet provided in said chamber, said membrane (3) comprising a substantially central opening closed by means of forward and rear cups (4 and 2) disposed on opposite sides of the membrane (3), the forward cup (4) being mounted fixedly to the connection member (7) the rear cup coming into abutment on a rear portion of a jack body when the chamber is subjected to underpressure.
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5. Device for actuating a pivoting closure member, comprising at least one rod (10, 11) articulated at one end on said closure member (14) and connected at its other end by coupling and transmission means to motor members, the motor members being mounted fixedly on a support and being constituted by at least one pneumatic linear actuator that imparts to a connection member (7) a reciprocating linear movement adapted to be transformed into movement of rotation, this movement of rotation being transmitted by a suitable transmission member (9) to said rod (10, 11), wherein the motor members are constituted by a pneumatic linear actuator disposed at one end of the connection member (7) and by resilient return means disposed at the other end of the connection member (7), said resilient return means driving the connection member (7) with linear displacement in a direction opposite that imparted by the actuator.
Specification