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EP-4739874-A1 - HANDLING SYSTEM FOR SIDE SLIDING SHIELDS

EP4739874A1EP 4739874 A1EP4739874 A1EP 4739874A1EP-4739874-A1

Abstract

Handling system (100) for shields comprising a net (101) and a side bin (102) to which said net (101) is fixed, further comprising: - a closing profile for locking the net (101) during its extraction from the side bin (102); - a mobile trolley, or tank, (105) formed by a plurality of linked meshes; - a handle bar (108) fixed to the free end of said net (101); - a lower link (140) located at a second end of the handle bar (108); - an upper gear (120) positioned at a first end of the handle bar (108) and comprising a two-seat gear wheel (123); - a first chain (121) and a second chain (122), and a wire (141) connected to the lower link (140); - an intermediate coupling system (130) of the wire (141) and of the second chain (122) to the tank (105).

Inventors

  • PROSCIA, Fabrizio
  • BELLOMO, Vito Lorenzo

Assignees

  • MV Line SpA

Dates

Publication Date
20260513
Application Date
20240701

Claims (10)

  1. 1. Handling system (100) for shields comprising a net (101) and a side bin (102) to which said net (101) is fixed, wherein said handling system (100) comprises: - a closing profile for locking the net (101) during its extraction from the side bin (102) ; a mobile trolley, or tank, (105) formed by a plurality of linked meshes to which a second portion of the net (101) is fixed; - a handle bar (108) fixed to the free end of said net (101) and parallel to the side bin (102) ; - a lower link (140) located at a second end of the handle bar (108) ; characterized in comprising: an upper gear (120) positioned at a first end of the handle bar (108) and comprising a two-seat gear wheel (123) ; a first chain (121) and a second chain (122) each slidably and oppositely movable in the two-seat gear wheel (123) , and a wire (141) connected to the lower link (140) and fixed at one end to the first chain (121) ; an intermediate coupling system (130) of the wire (141) and of the second chain (122) to the tank (105) .
  2. 2. Handling system (100) according to claim 1, characterized in that said two-seat gear wheel (123) comprises a plurality of housings and in that said first and second chains (121, 122) consist of a succession of spherical elements, with constant pitch and equal diameter to each other, suitable to engage in the housings of the two-seat gear wheel (123) to rotate it when the handle bar ( 108 ) is slid.
  3. 3. Handling system (100) according to claim 1, characterized in that said two-seat gear wheel (123) consists of two concentric circular elements fixed to a central rotation axis, said circular elements comprising, near their perimeter, a plurality of housings or holes in which the first and second chains (121, 122) engage during movement .
  4. 4. Handling system (100) according to claim 1, characterized in that said two-seat gear wheel (123) is constituted by a plurality of circular elements having a single central axis of rotation, between which a first seat for the first chain (121) and a second seat for the second chain (122) is defined, each seat comprising a plurality of housings constituted by concavities, adapted to allow the gearing of the corresponding chain (121, 122) .
  5. 5. Handling system (100) according to claim 1, characterized in that the intermediate coupling system (130) comprises an upper chain block (130a) and a lower chain block (141b) .
  6. 6. Handling system (100) according to claim 5, characterized in that the upper chain block (130a) consists of a recess obtained in a last mesh (109) of the tank (105) , to which one end of the second chain (122) is fixed.
  7. 7. Handling system (100) according to claim 5, characterized in that the upper chain block (130a) consists of a fixing screw applied to a last mesh (109) of the suitably perforated tank (105) , adapted to constrain the second chain (122) .
  8. 8. Handling system (100) according to claim 5, characterized in that the lower chain block (141b) consists of a fixing screw applied to a suitably perforated tank mesh (105) adapted to constrain the wire (141) .
  9. 9. Handling system (100) according to claim 1, characterized in that said lower link (140) comprises a bearing (141a) in which the wire (141) slides, a lower runner (142) constituting a lower end part of the handle bar (108) slidably housing the mobile carriage (105) therein .
  10. 10. Sliding shield comprising a handling system (100) according to one of the preceding claims.

Description

DESCRIPTION "Handling system for side sliding shields" ★ ★ ★ The present invention is related to a handling system for side sliding shields , having a lower trolley guide , used for the movement of a shield or a mosquito net installed in a door or window compartment . Several types of shields or mosquito nets are known, preferably in the case of lateral sliding, where such shields have a floor guide , a bin fixed laterally to the compartment to be shielded and in which a screening panel or a mosquito net is collected, an upper hori zontal guide , in which the edges of the shield are housed in such a way so as to prevent transversal movements of the shield itsel f , and a handle bar for movement . The patent literature , in addition, discloses some handling systems for shields . For example , the patent application EP2085562A2 describes a mosquito-net with rollaway net-guiding chain for net with hori zontal sliding, made up of a vertical roller shutter box containing a roller, lateral compared to a hori zontal and fixed upper guide , said net j oined with a first end to the roller , a hori zontal and fixed upper guide , a vertical handlebar to which the second end of the net is j oined, with the upper end fixed to the fixed guide and mobile longitudinally, and a net-guiding chain with containing seat of the lower border of the net . In addition, the text of the patent EP1963608B1 cites a pull across screen assembly having a flexible screen member wound about a vertical rod positioned at one side of the opening . A line member arrangement is attached to the front of the screen member and part of the line member winds about a tapered drum which is positioned on top of rod and which rotates with rotation of the rod . The arrangement allows the screen member to be tensioned and also to be balanced as it is pulled across the opening . However, the known handling systems for shields , and in particular for side sliding mosquito nets having a lower tank, suf fer the limitation induced by the lability of the handle bar, i . e . the poor stability of the sliding profile . The lability of the handle bar is highlighted by the di f ficulty in moving the sliding profile . In fact , by applying the force required for movement in the exact center of the sliding profile , the latter translates perfectly . However, by applying the force in correspondence with a point other than the center, the profile tends to rotate slightly and tilt , making its movement less easy . Furthermore , in known handling systems it is always necessary to constrain the lower tank at each movement of the sliding profile . In the technical filed of handling systems for side sliding shields , is common the use of a reinforced wire connecting the lower tank to a fixed point on the bin or on the closing point of the mosquito net . With such an approach, the sliding of the handle bar is fluid at least in one direction, but not in the opposite direction due to the flexibility of the wire . These known systems also present a limitation concerning the wear of the wire which tends to break after several cycles of use . A further limitation of the known systems arises from the wires not being perfectly balanced, so that by moving the handle bar the same wires flex and come out of the upper guide , becoming visible to the user and creating an aesthetic issue . The purpose of the present invention is to provide a handling system for side sliding shields which allows to achieve an optimi zed movement of the handle bar and its balance , regardless of the point of application of the force , having therefore characteristics so as to overcome the limitations that still af fect the known handling systems for shields . According to the present invention, a handling system for side sliding screens is provided, as defined in claim 1 . For a better understanding of the present invention, a preferred embodiment is now described, purely by way of non-limiting example , with reference to the attached drawings , in which : - figure 1 shows a schematic and exploded front view of a handling system for shields , according to the invention; - figure 2 shows an exploded perspective view of a handling system for side sliding shields , according to the invention; - figures 3a-3b show, respectively, detail views of an upper link and of an intermediate coupling system of the transmission means of the handling system, according to the invention; - figure 4 shows a detail view of a lower link of the handling system for shields , according to the invention; - figures 5a-5b show detail views highlighting fixing points of a first and of a second chain of the handling system for shields , according to the invention . With reference to these figures , a handling system for side sliding screens is shown, according to the invention . By way of a non-limiting example , such figures refer to the application of the handling system to side sliding shields . The same handling system is