WO2003031754A1

WO2003031754A1 - Handling device for revolving doors, in particular window shutters

Info

Publication number: WO2003031754A1
Application number: PCT/IT2002/000599
Authority: WO
Inventors: Giovanni Palamara; Rocco Palamara
Original assignee: Giovanni Palamara; Rocco Palamara
Priority date: 2001-10-11
Filing date: 2002-09-20
Publication date: 2003-04-17
Also published as: ITRM20010607A1; EP1438474A1; ITRM20010607A0

Abstract

A handling device (1) for revolving doors, in particular window shutters (P), apt to be associated to a door having an inner face (P1), forming the handling side thereof, an outer face and a hinged edge (P2), comprising: a fastening member (2; 51) to be applied to said inner face (P1) at a preset position; a lever (12) comprising a fulcrum (13), located at said fastening member (2; 51), and a driving end that, with the lever (12) adjacent to said inner face (P1), projects from the hinged edge (B2) of a handgrip section (14); and means for blocking the door in an opened configuration, driven by said blocking/unblocking lever, comprising at least one blocking member (15; 25; 45; 58; 59; 71).

Description

HANDLING DEVICE FOR REVOLVING DOORS, IN PARTICULAR WINDOW

SHUTTERS DESCRIPTION The present invention refers to a handling device for doors of revolving type, i.e. hinged at a side thereof, e.g. window shutters.

A handling-related problem is associated to this type of doors, in particular when a user is inside an ambient provided with an opening closed by one or more approached and outward-revolving doors, a location compelling a user's leaning out for handling. In the field of casings, the problem is specifically felt for the well-known revolving shutters, that, in a opened position, adhere to the walls of the related premises also by virtue of blocking mechanisms preventing wind-induced shifting and slamming. The closing compels the user to lean out in order to grab the shutter at an edge thereof and at a certain distance from the hinged side, so as to pull in order to revolve the same shutter. The hazardousness and the discomfort entailed in this handling are apparent.

Also the opened configuration is a problem, as the blocking mechanisms, besides from requiring a wall fastening, compel a user to lean out for the handling thereof. Known closing mechanisms acting onto the axis of rotation of the door are complex, and above all cannot be applied onto extant doors and shutters in use: the door should be specifically designed to house said mechanisms.

Likewise, the known application of projecting members easing the door grabbing and handling do not actually solve the technical problem set forth, as anyhow compelling the user to lean out for the handling thereof. The technical problem underlying the present invention is to provide a handling device overcoming the drawbacks mentioned with reference to the known art. This problem is solved by a handling device for revolving doors, in particular window shutters, apt to be associated to a door having an inner face, forming the handling side thereof, an outer face and a hinged side, characterized in that it comprises:

* a fastening member to be applied to said inner face at a preset location;

* a lever, comprising a fulcrum located at said fastening member and a driving end that, with the lever adjacent to said inner face, projects from the hinged side of a handgrip section; and * means for blocking the door in an opened configuration, driven by said lever for the blocking and the unblocking . The main advantage of the handling device according to the present invention lies in allowing an easy application to any type of revolving door, requiring the mere applying of the fastening member onto the inner face of the door. Moreover, the device allows the closing of the door by virtue of a mere pulling exerted on the handgrip section, followed by a pulling of the entire lever that allows a complete closing. This maneuver, in the case of shutters, can be carried out from the inside, without leaning out of the windowsill. Moreover, this device may also be useful in opening the shutter, pulling it to its seat in an opened configuration. Furthermore, the door is held in an opened configuration by lever-driven means, with no need to lean out.

The present invention will hereinafter be described according to several preferred embodiments thereof, all afferent to the same inventive concept disclosed hereto and given by way of a non-limiting example, with reference to the attached drawings wherein: * Figure 1 is a perspective view of a handling device according to a first embodiment of the invention;

* Figure 2 is a perspective view of a handling device according to a second embodiment of the invention;

* Figure 3 is a perspective view of a handling device according to a third embodiment of the invention;

* Figure 3a is a longitudinal section, taken along line A-A of Figure 3, of a construction detail of the handling device;

* Figure 4 is a perspective view of a handling device according to a fourth embodiment of the invention; * Figure 5 is a perspective view of a handling device according to a fifth embodiment of the invention;

* Figure 6 is a perspective view of a handling device according to a sixth embodiment of the invention; and

* Figure 7 is a front view of a handling device according to a seventh embodiment of the invention.

In the following examples, alike or strictly equivalent portions will be indicated by the same number references.

With reference to Figure 1, a device 1 according to a first embodiment is fastened to a shutter P, of the type having a revolving door hinged sideways to a window. Said shutter P generally comprises a handling side PI that, when the shutter P lies in a closed configuration, constitutes the face of the shutter P internal to the window. The outer face, opposed to the inner face, is hidden in the present figure, as well as in the following ones. Onto the outer face, no positioning of any member of the device according to the invention is provided.

The shutter P further comprises a hinged edge P2, fastened to the casing by hinges P3 e.g. of conventional type.

The device 1 comprises a fastening member, specifically a fastening plate 2, positioned by screws onto the inner face PI of the shutter P in a preset position which will be detailed hereinafter. Said plate 2 is provided, from the hinged side, of a positioning member 3, e.g., hook-shaped by a metal band bent and fastened to the inner face PI with one or more screws, having an upward-facing notch 3', with a mouth of a width proportional to the thickness of the lever to be housed therein which will be described hereinafter.

The recess has a lead-in hemming 4, to ease the insertion of said lever. The device 1 comprises a movable plate 8 rotatably fastened to the fastening plate 2 by a pivot pin 9 positioned onto the latter at the end thereof which is nearer to the side of the shutter P opposed to the hinged side.

The movable plate 8 can rotate relatively to the fixed plate, with a race restricted to the sole useful race allowed by a vertically located and cleft-shaped slot 10 housing a check pin 11 projecting from the fastening plate 2 and piece-formed therewith. To said movable plate 8 there is associated a lever 12 consisting of an elongate bar, connected to the movable plate 2 by a hinged fulcrum 13 and having a shaft freely insertable in and extractable from the positioning member, and a driving end, comprising a handgrip section 14, projecting from the hinged side and having a bent and bottom-facing shaping 15. The latter, at hooked lever, descends the plane of the windowsill D. Therefore, at the rear of this shaping 15 the device comprises a ledge

16 having a anti-friction layer 16a, advantageously with elastomeric properties. In this specific embodiment, the shaping 15 constitutes for said lever 12 an extension descending beyond the bottom edge of the opening, i.e. of the windowsill D. The location of the fulcrum 13 is such that the rotation of the lever occurs on a plane that is substantially horizontal, though inclinable by rotation of the movable plate 8, and anyhow perpendicular to the plane identified by the shutter P so that the lever have its driving end at a useful location, wherein it may be grabbed and handled to close, open and block the shutter P. Taking into account the length of the lever 12, the location of the fulcrum 13 is such that the lever 12 and the handgrip section 14 project from the edge P2. In this case, as well as in the ones described hereinafter, the handgrip section works as driving end of the lever 12.

Thus, a user can grab the lever 12 by the handgrip section 14 and first pull it topwise, resting it onto the positioning member 3 so as to release it from the notch 3' as well as from the windowsill, then pulling it near. Initially, a lever fulcruming at the inner edge of the shutter P will be exploited.

Advantageously, in order to avoid a potentially injurious contact between the lever 12 and the shutter P, the positioning member 3 has a backing plate 6 above the recess 3. It is understood that, differently from what was hereto disclosed, the backing plate 6, the positioning member 3 and the fastening plate 2 may be piece-formed thereamong. By virtue of its backing, the effort of the lever 12 rather than on the backing plate 6 is on the surface of the shutter P, pushing the latter at the fulcrum 13. Then, until closing, the user can pull the shutter P to by the lever 12. Lastly, the lever 12, gradually rotating about its fulcrum 13, will end up folded with the handgrip section 14 adjacent to the side of the shutter P opposed to that of the hinged edge P2 thereof. To this end, the length of the lever 12 from the fulcrum 13 to its point is shorter than the distance between the fulcrum 13 and the edge opposed to the hinged one. During these steps, the joint action of the slot 10 and of the check pin 11 of the lever proves useful. The latter, on the one side is held within the backing plate 6 in order not to injure the shutter P, whereas on the other side, at closed shutter, is hung in order not to injure the windowsill, and further allowing a comfortable grip at reuse.

Likewise, the reverse opening and blocking operation is simple, as the user, upon grabbing the lever 12 at the handgrip section 14 thereof, at first pushes the shutter P outwards, then reducing or increasing the push with the lever 12 in the subsequent race of the shutter. Lastly, when the shutter is completely opened, the lever 12 is inserted into the positioning member 3, thereby aligning the ledge 16 to the windowsill D. Accordingly, the lever 12, constrained at one end thereof by the fulcrum 13 and locked at a midpoint by the positioning member 3 onto the inner face PI of the shutter P, with its handling end forced onto the windowsill edge, becomes itself a blocking mechanism of the shutter P, which can be activated and deactivated by driving thereof.

Always with reference to Figure 1, apart from facing bottomward said shaping 15 may be bent extrorse or introrse, in order to adjust to a more or less projecting windowsill D set back from the plane of the outside wall and of the window. This contrivance is useful in order to give as little slack as possible to the opened and blocked shutter, considering that usually the windowsill edge lies behind the shutter face, especially so in case of a relevant thickness difference, as otherwise the slack might anyhow be acceptable. Of course, for the cases of equal thickness, a device lacking said bend is provided. For the cases in which the edge of the windowsill stands out the shutter, in order to correctly position the lever 12 the bend provided is extrorse rather than introrse. With reference to Figure 2, a second embodiment of handling device 1 comprises a fastening member, specifically an elongate fastening plate 2 located adjacent to the bottom edge P4 of the shutter P. The plate 2 is provided with a positioning member 3 piece- formed with the plate 2, said member 3 comprising a notch 3' apt to receive a lever 12, provided with a lead-in hemming 4. Onto the fastening plate 2 there is formed a backing plane 26 working as the backing plate of the preceding example.

The lever 12, in the present embodiment made of a circular section rod, is pivoted at a fulcrum 13 formed directly onto the plate 2. To this end, the latter comprises a pair of projecting members 21, a fulcrum pin 22, advantageously having an oblique axis, being located therebetween. In turn, the lever 12 has a fulcrum end 23 comprising a thickening and a elongate slot-shaped through hole 24 inside which said fulcrum pin 22 is inserted. The hole 24-pin 22 slack, plus the shape of the fulcrum end 23, allows the rotation of the lever 12 with respect to its fulcrum, about an axis perpendicular to the axis of the fulcrum pin 22, whereas the rotation of the lever 12 about its axis is prevented. The rotation about said vertical axis, substantially due to the slack of the fulcrum pin 22 within the hole 24, that is slot-shaped or anyhow widened with respect to the diameter of the pin 22, is allowed according to a race restricted by the dimensions of the slot or of the hole. Instead, the rotation of the lever about the fulcrum pin 22 has no such restriction. This version of the device has, at the handgrip section 14 projecting, at opened configuration, from the hinged edge P2 of the shutter, a blocking member 25. The latter is an extension of the lever 12 perpendicular thereto, substantially identifying a plane that, with the lever 12 adhered to the shutter P, is substantially parallel to the plane identified by the latter. The operation of such device 1 is akin to that of the preceding version. At opened shutter P, the lever 12 located in the notch 3' of the positioning member 3 holds the blocking member 25 substantially in contact with the windowsill D, keeping the shutter opened. In order to adjust to different windowsills, optionally the lever 12 could be bent in the section beyond the positioning member 3, optionally also at installation.

The blocking member is coated with an anti-friction member 16, i.e. a sleeve of elastomeric material or the like.

In order to close the shutter P, it suffices to lift the lever 12 enough to free it from the notch 3' and from the interference between the blocking member 25 and the windowsill D, to then pull the lever to. The latter will be resting onto the proximal end 26 of the plate 2, without rubbing against the shutter. This resting is determined by the configuration of the fulcrum end 23 restricting the rotary race of the lever 12. After a first rotation of the shutter P, it will suffice to pull the lever 12 after having pulled the latter thereaway. Then, the lever 12 can be put back adhered to the shutter in an oblique position determined by the tilt of the fulcrum pin 22 and/or by the shape of the fulcrum end 23, so as not to rest on the windowsill.

With reference to Figure 3, an embodiment of the handling device 1 substantially constitutes a variant of the preceding example.

The fulcrum 13 comprises a bush 31 with opposed notchings 32 following its generating lines. Inside the bush 31 there is formed a nut thread 33 engaging a threaded pin 34 in turn provided, at the end projecting from the bush 31, with two projecting members 21 having a fulcrum pin 22, analogously to what was described for the preceding example (Figure 3a).

In the present example, with a contrivance applicable to the preceding example as well, the fulcrum end 23 is flattened, and between it and the projecting members 21 there is a top, bottom and side slack, so as to allow the rotation of the lever 12 about the respective pin as well as a restricted rotation of the lever 12 about an axis substantially perpendicular to the shutter plane, to allow the lifting and the lowering of the lever 12 and of the respective blocking member. Furthermore, the threaded pin 34 representing a member perpendicularly movable about the shutter P yet constrained thereto, has a longitudinal slot 35 apt to receive a fastening screw 36 or an alike push button system to block the threaded pin 34 at a preset position.

Concerning operation, in addition to the abovedescribed for the preceding example, apparently, by virtue of said movable member, the location of the fulcrum point can be varied, moving the latter near to or away from the shutter plane. With the lever 12 inserted in the respective recess 3, to said moving away from or near to there will correspond respective moving away from or near to the windowsill D of the blocking member 25. Thus, the location of the blocking member 25 is adaptable to different windowsill projections. With reference to Figure 4, a further embodiment has a fastening member A wall- applied below the shutter P. Said fastening member A comprises a screw-screw anchor system 41 for wall blocking. Moreover, the former has a hook-up member 42 defining a slanting flap 43 and a recess 44 holding a blocking member 45 that forms a descending extension of the movable plate 8 described with reference to the first example. Optionally, the hook-up member is elastic. Anyhow, the hook-up member 42 carries out the fundamental function of providing a check to the shutter P, comprising a further check plane 49 substantially adjacent to the wall.

This blocking member, associated to the movable plate 8, carries out the function of the abovedescribed blocking members, that were instead associated to the driving end of the lever 12.

In this example, the positioning member assumes the configuration of a stake 46 projecting from the fixed plate 2. Resting the lever 12 above the stake 46 and freeing the blocking member 45 from the hook-up member, the shutter P can be handled to close. The fixed plate 2 comprises a further positioning member 47 to hold the lever 12 in a horizontal position. A projection 48 of the fixed plate resting onto the stake 46 concurs in holding this position. Said projection carries out substantially the same function of the positioning member 47, i.e. alike that of the preceding examples. When the shutter P is opened by a mere pushing, the blocking member 45 strikes the slanting flap 43 partially lifting the lever, whereas the blocking member 45 drops inside the recess 44. Then, the shutter rests on the check plane 49. Hence, the blocking of the opening shutter P is substantially automatic. In the embodiment of Figure 5, the lever 12 is fulcrumed on a movable plate 8, rotatable about its longitudinal axis and forming a closure portion of a box structure 51.

Said structure 51 is depicted as fastened to the plane of the shutter P, yet it is understood that it may be incoφorated in the thickness of the shutter P. Inside said box structure 51 there is housed a first bevel gear 52, coaxial to the movable plate 8 and rotatable therewith. The structure 51 further comprises a second bevel gear 53 connected to a shaft 54 located parallelly to the bottom edge P4 of the shutter P, ending with a third cylinder-shaped bevel gear 55.

Said third bevel gear drives a pair of rack rods 56, 57 located at the sides thereof so that the rotation of the gear 55 be matched by the motion of the rods, parallelly located, according to opposite directions. Onto the ends of each rod 56, 57 there is located a respective shoe-shaped blocking member 58, 59 that could engage in suitable recesses (not shown). Concerning the operation of the present exemplary device, the shoe-shaped blocking members are driven in extension by the bottom and top edges of the shutter shifting the lever 12 from a slanting position to a horizontal or resting position. The same motion can be driven at closed shutter P, on condition that suitable recesses be provided for said blocking members, in which case the device 1 works as an actual frame for the framed closing of the shutter P.

Moreover, apparently the lever 12 is usually fulcrumed onto the movable plate 8 and hence can be used for the actual handling of the shutter.

The example of Figure 6 is analogous to the preceding one, however in lieu of the shaft 54 the device comprises a pair of opposed second rack rods 61, 62, driven by said first gear 52, in this case a spur gear.

The second rack rods drive the first rack rods mentioned for the preceding example with a gear equivalent to said bevel gear 55.

In the latter two embodiments, the box structure 51 works as fastening member in lieu of said fastening plate 2.

With reference to Figure 7, an exemplary device 1 is disclosed, akin to said second and third examples (Figs. 2 and 3) with regard to the fulcrum 13. In this device, the positioning member 3 is absent, replaced by a blocking member 71, analogous to that of the fourth embodiment (Figure 4) pivotally piece-formed with the lever 12, apt to be inserted in a suitable hook-up member 72 which also provides a backing to the latter.

The latter is of extensible type, comprising a tube-shaped handgrip section 73 telescopically slidadable thereon.

Said section 73 comprises a longitudinal slot 74 comprising end recesses 75, apt to house a positioning pin 76 projecting from the surface of the lever 12 and inserted in said slot 74. Thus, the handgrip section 73, not working as blocking member, can be located in a retracted position when the lever 12 is at rest.

In a resting position, the lever 12 is slanting (depicted by a dotted line) by virtue of the inclination of the fulcrum pin 22. All of the above examples may be subject to variants. In particular, components of an example are applicable also on other examples. E.g., the race restricting system of the first example may also apply to the fourth example, and vice versa.

To the abovedescribed devices a person skilled in the art, in order to meet further and contingent needs, may effect several further modifications and variants, all however comprised within the protective scope of the present invention, as defined by the appended claims.

Claims

CLAΓMS

1. A handling device (1) for revolving doors, in particular window shutters (P), apt to be associated to a door having an inner face (PI), forming the handling side thereof, an outer face and a hinged edge (P2), characterized in that it comprises: * a fastening member (2; 51) to be applied to said inner face (PI) at a preset location; * a lever (12) comprising a fulcrum (13), located at said fastening member (2; 51), and a driving end that, with the lever (12) adjacent to said inner face (PI), projects from the hinged edge (B2) of a handgrip section (14); and * means for blocking the door in an opened configuration, driven by said leverfor the blocking and the unblocking, comprising at least one blocking member (15; 25; 45; 58, 59; 71).

2. The device (1) according to claim 1, wherein the location of the fulcrum (13) is such that the rotation of the lever (12) occurs on a plane substantially inclinable of a race restricted with respect to a horizontal plane and anyhow perpendicular to the plane identified by the door (P) so that the lever (12) have its driving end at a useful location, wherein it may be grabbed and handled to close, open and block the door

(P).

3. The device (1) according to claim 1, comprising a hook-up member (42; 72) cooperating with said at least one blocking member (45; 58, 59; 71) and associated to a wall with respect to which the door rotates.

4. The device (1) according to claim 1, wherein said at least one blocking member (15; 25) cooperates with the windowsill (D) being formed on the lever (12) at said driving end, said lever being engaged in a notch (3¹) of a positioning member (3) connected to said fastening member (2).

5. The device (1) according to claim 1, wherein the fastening member is a fastening plate (2) connected to the inner face (PI) of the door.

6. The device (1) according to claim 1, wherein the fulcrum (13) is mounted on a movable plate (8) rotatably fixed on said fastening member (2; 51).

7. The device (1) according to claim 6, wherein said movable plate (8) comprises said at least one blocking member (45).

8. The device (1) according to claim 6, comprising a check pin or stake (11; 46), projecting from the fastening member (2), that restricts the rotation of the plate (8).

9. The device (1) according to claim 8, wherein the check pin (11) is inserted in a cleft-shaped slot (10) formed into the movable plate (8).

10. The device (1) according to claim 1, comprising, in order to avoid a contact between the lever (12) and the door, a backing plate (6) onto the inner face (PI) of the door.

11. The device (1) according to claim 1, wherein the movable plate (8) is connected to a bevel gear (52) for driving the blocking means.

12. The device (1) according to claim 1, wherein the fulcrum (13) is formed directly onto the fastening member (2) and comprises a pair of projecting members

(21), a fulcrum pin (22) being located therebetween.

13. The device (1) according to claim 12, wherein the axis of the fulcrum pin (22) is oblique.

14. The device (1) according to claim 12, wherein the lever (12) has a fulcrum end (23) comprising a thickening and an elongate slot-shaped through hole (24), inside which said fulcrum pin (22) is inserted, the through hole (24)-fulcrum pin (22) slack plus the shape of the fulcrum end (23) allowing the rotation of the lever (12), with respect to its fulcrum (13), about an axis perpendicular to the axis of the fulcrum pin (23), whereas the rotation of the lever (12) about its own axis is prevented.

15. The device (1) according to claim 12, wherein the lever (12) has a flattened fulcrum end (23), and between the latter and said projecting members (21) there is a top, bottom and side slack, so as to allow the rotation of the lever (12) about the respective pin as well as a restricted rotation of the lever (12) about an axis substantially perpendicular to the door plane (P), to allow the lifting and the lowering of the lever (12) and of the respective blocking member.

16. The device (1) according to claim 4, wherein the blocking member (25) consists of an extension of the lever (12) perpendicular thereto, substantially identifying a plane that, with the lever (12) adhered to the door, is substantially parallel to the plane identified by the latter.

17. The device (1) according to claim 4, wherein the lever is bent (12).

18. The device 81) according to claim 1, wherein the fulcrum (13) is formed on a movable member (34) capable of being shifted substantially perpendicularly with respect to the door and yet being constrained thereto, it being possible to vary the location of the fulcrum point moving it away from or nearing it to the door plane (P).

19. The device (1) according to claim 1, wherein the lever (12) is of extensible type, comprising a handgrip section 73 telescopically slidadable thereon.

20. The device (1) according to claim 19, wherein said handgrip section (73) comprises a longitudinal slot (74) comprising end recesses (75), apt to house a positioning pin (76) projecting from the surface of the lever (12) and inserted into said slot (74).