FR2828231A1 - Telescopic screw cylinder for opening and closing shutters or gates has bevel gears transmitting rotation through screws to flexible element - Google Patents

Abstract

The screw cylinder (10) consists of a number of concentric threaded cylinders (11a, 12a, 13) that are rotated to deploy and retract it. It is connected at one end to a shaft (2) rotated by bevel gears (3, 4) and at the other to a flexible element (7) attached to a shutter or gate. The shaft (2) is rotated by a drive shaft (5) which can have its end located inside a building and can be motorised. The screw cylinder measures, for example 50 mm in diameter by 100 mm in length when retracted and 200 or 300 mm when deployed.

Description

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DESCRIPTIONS
The present invention relates to a compact device for handling the shutter leaves while keeping the windows closed or the gate leaves without taking account of the installation distance calculations.

 The opening of the shutters is traditionally done manually after opening the windows, implying restrictive manipulations especially in bad weather.

 The device according to the invention overcomes its drawbacks.

 According to a first characteristic, it in fact comprises a control part which, by a rotary force exerted by the user with a small crank or motorized device, will drive the long control pin or bolt, which also ensures the connection on the part and other of the amount of an opening.

 On this control axis is mounted a concurrent gear of which, one of the bevel gears is mounted on the control axis, and the second bevel gear is mounted on the axis perpendicular to the control axis, allowing the rotary force to be transmitted to another device in parallel for controlling a second leaf.

 This control axis (direct or remote), in turn drives an extendable part fixed at its end.

 This extensible part consists of several cylindrical elements nested by threads and threads which will be screwed or unscrewed between them by propagation of the rotation.

 In this expandable part there is a first basic element which receives in its translation chamber an intermediate element.

 We also distinguish that an intermediate element can in turn accommodate in its translation chamber, either another intermediate element of smaller dimension or a final element.

 The final element when it is fixed at its end opening on the leaf, or on a flexible part, consisting of a semi-rigid axis thus transmitting a push or traction on the leaf, and this more or less 90 degrees relative to the axis of the device, thus conferring a movement of the leaf up to more or less 180 degrees relative to its initially open or closed position.

According to particular embodiments:
The elements of the extendable part can be machined in a tapped cylinder figure. 1, or in a hollow threaded rod figure. 2.

 The elements of the extendable part can be machined in several assembled parts corresponding: to a hollow cylinder for the translation chamber, to a through shoulder serving as limit stop, and a button for the plugged end of an element.

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The accompanying drawings illustrate the invention:
The figure. 1 shows the device in section, except for the axes of the control part.

 The figure. 2 shows the extensible part (10) in section, hollow threaded rod version.

 With reference to its drawings, the device consists of a control part (1) actuated by a rotary force exerted by the user.

 This control part (1) composed of a long axis or bolt (2), crosses the upright of a frame (8) and drives a concurrent gear including a bevel gear (3) integral with the axis (2) and a bevel gear (4) mounted on an axis (5) perpendicular to the axis (2), allowing the rotary force to be shifted to another device mounted in parallel for controlling the second leaf.

 At the end of the control part (1) is mounted, then fixed by drilling against and introduction of an elastic pin (16), an extensible part (10) which will also be driven by the rotary force.

 The extendable part (10) consists of three types of elements nested by tapping (14a) and thread (15b) (tapped version figure. 1), or by thread (15a) and tapping (14b) (threaded version figure. 2 ), which will screw or unscrew between them by propagation of the movement.

 We will find below for each element the same screwing and unscrewing characteristics transforming the rotation in translation.

We distinguish a basic element (lla, llb, llc) by: - A button (llb), closing the cylinder (lla) and acting as an end-of-travel stop for the element contained in the cylinder (lla).

 This macaron (llb) is secured by counter-drilling and introduction of an elastic pin (16), the control axis (2) and the cylinder (alla).

 - A cylinder (lla) driven by the rotary force and acting as a translation chamber for the element it contains.

 This cylinder (lla) is, provided with a thread (14a) version threaded figure. 1, or smooth depending on the threaded version shown. 2.

 - Acting as an end-of-travel stop for the element contained in its translation chamber, the through end of the cylinder (lla) is provided with either a ring (llc) in the tapped version shown. 1, or of a threaded shoulder (14b) machined in the cylinder (lla) threaded version figure. 2.

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There is an intermediate element (12a, 12b, 12c) by: - a button (12b) closing the cylinder (12a). This macaroon (12b) secured to the cylinder (12a) by counter-drilling and introduction of an elastic pin (16) is in the form of a threaded piston (15b) in the tapped version. 1 or in the form of a simple button (12b), threaded version figure. 2 are shoulder serving as a piston being machined in the cylinder (12a).

 - A threaded cylinder (12a) (threaded version figure. 1), or threaded (threaded version figure. 2).

 - Acting as an end-of-travel stop for the element contained in its translation chamber, the opening end of the cylinder (12a) is provided with either a ring (12c) (tapped version in figure 1) or with a threaded shoulder (14b) machined in the cylinder (12a) (threaded version figure. 2).

 One distinguishes on a final element (13) its shape in threaded piston (15b) and smooth piston rod (tapped version figure. 1) or else, in smooth piston and threaded piston rod (15a) (threaded version figure. 2) . the final element (13) is made integral with the flexible part (6) by introduction of the piston rod of the final element (13) into the hole made in the crimping lug of the twisted strands forming the semi-axis rigid (7), and against drilling and introduction of an elastic pin (16).

 According to a variant not illustrated, the control part (1) can be a motorized mechanism.

 The concurrent gear, bevel gear (3), bevel gear (4) the axis (5) perpendicular to the axis (2), of the control part (1) can be arranged on the inside of the opening.

By way of nonlimiting example, the extensible part will have a dimension of approximately 50mm in diameter and 100mm in the rest position and a development of approximately 200mm, ie a length of approximately 300mm in the working position, corresponding to most of the requirements for handling of shutters.

 The device according to the invention is particularly intended for the handling of leaves such as shutters, or swing gates.

Claims (7)

1) Device for manipulating the leaves, characterized in that it comprises a control part (1), the rotary force of which is transmitted to the extensible part (10), will cause the cylindrical elements (lla), (12a) and (13), nested will be screwed or unscrewed by propagation of the movement, thus generating a push or traction on the flexible part (6), which propagates this force on the leaf to be manipulated. 2) Device according to claim 1) characterized in that the extensible part (10) constitutes a set of nested elements (lla, 12a, 13), by thread (14) and thread (15).  3) Device according to claims 1) and 2) characterized in that the threads (14) and threads (15) tend to cause the nested elements (12a, 13) to move in translation, extendable part (10) by the action of screwing and or unscrewing.  4) Device according to claims 1) and 2) characterized in that the base element (lla) of the extendable part (10) receives in its translation chamber an intermediate element (12a).  5) Device according to claims 1), 2) and 4) characterized in that an intermediate element (12a) receives in its translation chamber a final element (13) or else intermediate element (12a). of lower dimension.  6) Device according to claim 5), characterized in that the intermediate elements (12a) can overlap indefinitely between them, the number of nesting is in fact determined by the dimensions of each element (lla) (12a) (13 ) and the development sought. 7) Device according to one of claims 5), characterized in that the final element (13) is fixed at its open end to the flexible part (7) or on the leaf.