CN113167079B

CN113167079B - Handle for sliding casement window

Info

Publication number: CN113167079B
Application number: CN201980077294.9A
Authority: CN
Inventors: S·帕西尼
Original assignee: Feibi Co ltd
Current assignee: Feibi Co ltd
Priority date: 2018-11-26
Filing date: 2019-11-20
Publication date: 2022-07-19
Anticipated expiration: 2039-11-20
Also published as: CN113167079A; MX2021006088A; RS64090B1; EP3887626A1; IT201800010575A1; PT3887626T; WO2020109932A1; EP3887626B1; MA54279A; MA54279B1; ES2939508T3; PL3887626T3

Abstract

The present invention relates to a handle for sliding doors and windows, more precisely a handle which rotates itself between 15 ° and 30 °, i.e. a handle equipped with a gear multiplier.

Description

Handle for sliding casement window

Technical Field

The present invention relates to a handle for a casement window, for example for sliding casement windows such as windows and doors. More precisely, the invention relates to a handle that rotates itself between 15 ° and 30 °, i.e. a handle equipped with a gear multiplier.

Background

In a usual casement window, in particular a sliding casement window, the closure of the movable side on the fixed frame is obtained by means of a bearing seat made inserted on the frame of a movable clamping bolt mounted on the side and operated by a handle. The latter is operatively interfaced to the movable stop by an operating bolt.

As mentioned above, the movement of the peg from the free position to the inserted position in the support is controlled by the handle, which rotates by the desired angle upon manual action by the user, thereby completing the movement.

Typically, the rotation angle of the handle is 90 °, wherein the position of the horizontal arrangement (reference to the walking surface) corresponds to the free position of the bolt, thus opening the casement window. However, there are applications that require the handle to be freely rotatable to achieve a smaller angle of rotation. In more detail, in a sliding casement window, if the handle is rotated by 90 °, it will be in a horizontal arrangement with respect to the walking surface, i.e. oriented according to the sliding direction of the casement window itself. In such a position, the user finds it difficult to grasp the handle and apply the drag force thereon that is required to slide the casement window.

For these reasons, it is preferable that the handle of this type of casement window can be freely made to a maximum rotation comprised between 15 ° and 30 °, so that even if the peg is in the free position, the handle is positioned in an arrangement close to the vertical position and is gripped more comfortably to drag the casement window until opened.

Disclosure of Invention

To obtain this result, a multiplication mechanism is used, which makes it possible to obtain a complete movement of the peg with a rotation of the handle of only 15 ° -30 °. The complete movement of the bolt is obtained by rotating the operating bolt by 90 deg., thus requiring a multiplication gear mechanism.

However, the mechanisms known in the art are bulky and therefore the known handles are aesthetically appealing.

Furthermore, since the handle has fixing screws placed at a given distance to accommodate holes already present on the side, according to the standards currently adopted in the field, the operating bolt is positioned centrally with respect to these fixing screws, but is therefore in an eccentric position with respect to the axis of rotation of the handle. This makes the user experience different use and operation from the standard to which he/she is accustomed, thereby giving feedback on uncomfortable and unsatisfactory operation feeling.

Another drawback found in the currently known handles is that the multiplying mechanism, when transmitting the movement to the central operating peg, causes a counter-rotation with respect to the rotation of the knob of the handle lever, forcing the closing mechanism of the movable side to be used under the counter-movement of the peg, jeopardizing the effectiveness of the closure itself.

It is an object of the present invention to provide a handle equipped with a gear multiplier having a reduced volume.

It is another object of the present invention to provide a handle with a gear multiplier wherein the axis of rotation of the operating bolt is aligned with the axis of rotation of the handle.

Drawings

The characteristics and advantages of the handle of the invention will become clearer from the following description of a non-limiting example of embodiment thereof, made with reference to the attached drawings, wherein

Figure 1 shows the sliding casement window with the handle in the open position, i.e. in the position in which the casement window is open, and in the dotted line, the handle in the closed position, i.e. in the position in which the casement window is closed;

figure 2 is a cross section of the handle according to the invention mounted on a casement window;

figure 3 is an exploded and exploded perspective view of the handle according to the invention;

figure 4A shows the handle with the handle lever in the closed position and; and

fig. 4B shows the handle with the handle bar in the open position.

Detailed Description

With reference to the above figures, the handle 1 according to the invention is suitable to be associated with a casement window 2. The casement window may be of any type; the casement window shown in the illustrated embodiment is of a sliding type.

The casement window comprises sides 20 and a fixed frame 21, the sides being joined to the fixed frame 21, in this case of the sliding type. To this end, the side is further provided with sliding means 200 (such as, but not limited to, at least one carriage or the like), which sliding means 200 are associated with the lower crosspiece 201 of the side and rest on the lower crosspiece 210 of the fixed frame and on which, for example, the sliding means 200 slide according to the sliding axis X for opening or closing the side with respect to the frame. The X-axis is generally a horizontal axis defined in the plane of the side edges.

The side edges also comprise vertical uprights 202 perpendicular to the lower crosspiece 201, to which the handle 1 is associated according to the invention. In the closed position of the casement window, the vertical uprights 202 of the sides rest against the vertical uprights 211 of the fixed frame. The vertical upright 202 defines a vertical axis Y, lying in a lateral plane and perpendicular to the sliding axis X.

A locking mechanism of a known type is provided for engagement or disengagement with respect to the side edge of the frame. In particular, the locking mechanism, generally indicated by reference numeral 212, includes an abutment mechanism having a bolt engaged therein. The bolt is directly and integrally operated by an operating bolt of the handle.

It should be noted that in the present description, the expression closed casement window means the position of the casement window where the vertical upright 202 of the side edge abuts the vertical upright 211 of the fixed frame. Vice versa in the open position of the casement window, such abutment does not occur. When the bolt is snapped into the abutment mechanism, the casement window is clamped. The pin is thus movable between a free position, in which it is not engaged in the abutment mechanism and the side edges are free and can be opened, i.e. moved along the axis X away from the vertical uprights of the fixed frame, and a clamping position, in which it is engaged in the abutment mechanism and the sliding movement of the side edges according to the axis X is blocked.

Entering into the details of the invention, the handle 1 comprises a handle lever knob or more simply a handle lever 10. The handle lever 10 is rotatably fixed to the vertical upright 202 with respect to a first rotation axis Z perpendicular to the plane defined by the lateral edges and defining a cartesian triad having the above-mentioned X and Y axes. In the handle according to the invention, the handle lever rotates between a closed or closed middle position, corresponding to a zero rotation with respect to the vertical axis Y, and an open or open middle position, corresponding to a rotation with an angle α of inclination with respect to the vertical axis Y. In a preferred embodiment, the angle α is between 15 ° and 30 °.

The handle lever 10 is operatively connected to the operating peg 11 such that rotation of the handle lever 10 activates rotation of the operating peg 11. The operating bolt 11 is thus rotated about its own axis of rotation Z' by an angle β, β being greater than α. Still preferably, β has a value of about 90 °. This angle of rotation corresponds to the position of the pin being free from the position of the abutment mechanism 212.

According to one aspect of the invention, the rotation axis Z of the handle lever and the rotation axis Z' of the operating peg are aligned, as will be seen more clearly below.

The handle according to the invention also incorporates a multiplier gear 12, the multiplier gear 12 being mechanically interposed between the handle lever 10 and the operating bolt 11 so as to obtain a rotation angle β greater than that of the operating bolt in the case of maximum rotation α of the handle lever.

The handle lever 10 is fixed to a fixed and rotating peg 13 arranged according to a first rotation axis Z.

The fixing and rotating peg 13 has a proximal portion 130, the proximal portion 130 being shaped so as to be connected to the head 10a of the handle bar 10. Head 10a is also shaped in a complementary manner to mate with proximal portion 130 of the plug. Pin 100a stabilizes the connection between head 10a and proximal portion 130.

The fixing and rotation peg 13 then comprises a distal opposite end 131 shaped to be fixed with the multiplier gear device 12 described above. Between the two distal ends 131 and the proximal end 130, the bolt has a stem 132, the stem 132 being keyed rotatably to the first seat 14, passing through two bushings 140', 140 ". The first base 14 is directly connected to the lateral uprights 202 by means of threaded connections 141', which are aligned according to an axis parallel to the axis Z and are arranged spaced apart along the vertical axis Y.

The first mount 14 also defines a seat 142, and the multiplier gear device 12 is received in the seat 142. It includes an input motion element 120, the input motion element 120 being rigidly fixed to the distal end 131 of the fixed bolt 13. The output moving element 121 is rotatably connected to the input moving element 120 with respect to the rotation axis Z of the pin 13 by means of a fixing screw 123. The output movement element 121 is rigidly connected to the clamping actuating bolt 11 according to the axis of rotation Z ═ Z', and is also located on the axis with the fixing bolt 130.

The multiplying element 122 is interposed between the input element 120 and the output element 121. The multiplication element 122 is rotatably supported by one of the threaded elements 141 "for fixing the first mount. The rotary threaded support member defines a second or derivative axis of rotation Z "parallel to the axis of rotation Z of the handle lever and spaced therefrom along the vertical axis Y. In the embodiment shown in the figures, the rotating threaded support element is lower, so that the axis of rotation Z "is lower than the axis of rotation Z. As said, the opposite solution can be provided, i.e. the rotary threaded support element is higher, the axis of derivation Z "is therefore arranged above the axis of rotation Z.

However, the multiplying element is rotatable around the rotation axis Z ″ so as to sweep an angle equal to 2 α, with zero rotation corresponding to the closed position of the handle lever and 2 α rotation corresponding to the open position of the handle lever.

In further detail, the input member 120 supports a first gear sector 120a, the first gear sector 120a being engaged with a second gear sector 122a of the multiplier member 122. The latter supports a third gear sector 122b with a larger radius, which engages with a fourth gear sector 121a that defines the profile of the output moving element 121. This engagement sequence allows the transfer of the movement from the handle lever 10 through the peg 130 to the operating peg 11 at the required transmission ratio. The output kinematic element 121 then provides a head 121b of suitable shape for integrally housing the peg 11.

However, the multiplication element 122 provides an abutment side 122c that laterally defines the third gear sector 122 b. At the end of the travel of rotation of the handle lever 10 (i.e., in the closed and open positions), the abutment side 122c will abut the

respective side wall

142a, 142b of the seat 142. The

side walls

142a, 142b are symmetrically inclined with respect to the vertical axis Y to define a V-shape. Preferably, each wall is inclined by an angle α with respect to the axis Y, so that the V-shape defines a vertex angle of 2 α.

The input motion member 120 supports an engagement protrusion 120b in an opposing position relative to the first gear sector 120 a. In the embodiment shown in the figures, the engagement protrusion 120b may be realized by another gear sector or more simply by a groove.

The first base 14 is closed at the rear by a second base 15, the second base 15 being fixed to the upright by means of the same threaded connections 141', 141 ". The second seat 15 supports a resilient profile 150 shaped so that the engagement projection 120b achieves a snap fit at the end-of-travel position of the handle lever. In particular, the elastic profile in the preferred embodiment has the shape of a circular sector opposite to the gear sector 120b, which part forms the engagement protrusion. Referring again also to fig. 4a and 4b, in the position of closing and opening the handle levers, the engagement protrusions 120b snap onto the resilient profile, forcing the handle levers into the reached position. This solution stabilizes the handle lever in the reached position at the end of the stroke. It also forces the user to exert a slight force on the handle levers to return to the relative position, which is desirable and does result in the desired effect, as it gives the user the feeling of stable use and prevents accidental rotation of the handle levers.

In summary, a cover 16 is provided to enclose the first and second bases and engage over the latter by snap-fitting, thereby protecting the gears from moisture or dust infiltration.

The handle according to the invention achieves a number of advantages. First, the operating bolt 11 is arranged along the axis along the rotation axis Y' of the handle, so that it gives a particularly comfortable feeling of use to the user.

Moreover, due to the relative arrangement of the elements of the multiplier gear mechanism, the handle is generally compact, despite being particularly simple constructive solutions with respect to those known.

However, the handle can be used for any type of casement window, even without sliding, and is therefore particularly versatile.

The invention has been described with reference to the preferred embodiments thereof. It is understood that there may be other embodiments relating to the same inventive core, which fall within the scope of the claims provided below.

Claims

1. A handle for a casing (2) comprising a side (20), said side (20) being movable with respect to a fixed frame (21) and defining a horizontal axis (X) lying on the plane of said side, said handle determining the engagement or disengagement of said side with or from said frame in order to obtain the closing or opening of said casing, said handle comprising:

-a handle lever (10), said handle lever (10) being rotatably associated with said movable side according to a first rotation axis (Z) perpendicular to said horizontal axis (X) and to the plane defined by said movable side (20), said handle lever (10) being rotatable between a closed position, in which it is assumed that there is zero inclination with respect to a vertical axis (Y) perpendicular to said horizontal axis (X) and to the first rotation axis (Z), and an open position, in which it is assumed that the inclination angle with respect to said vertical axis (Y) is equal to a;

-an operating bolt (11), said operating bolt (11) being driven by said handle lever (10) and being adapted to actuate the engagement or disengagement of the locking mechanism of said side on said fixed frame, said operating bolt (11) being rotatable with respect to its own operating bolt rotation axis (Z') by an angle β, wherein at zero rotation corresponds to an engagement movement of said locking mechanism and a rotation of value β corresponds to a disengagement movement of said locking mechanism, wherein β is greater than α;

-a multiplier gear arrangement (12), said multiplier gear arrangement (12) operatively connecting said handle lever (10) to said operating bolt (11) such that when said handle lever (10) is rotated a, said operating bolt (11) is rotated β; the handle lever (10) is characterized in that:

-the operating bolt rotation axis (Z') of the operating bolt (11) and the first rotation axis (Z) of the handle lever (10) are aligned;

-said multiplier gear means (12) comprising an input element (120) integral with said handle lever (10), an output element (121) integral with said operating bolt (11) and a multiplier element (122), said multiplier element (122) being simultaneously engaged with said input and output elements and rotatable about a second rotation axis (Z ") parallel to said first rotation axis (Z) and to said operating bolt rotation axis (Z') and spaced with respect thereto along said vertical axis (Y).

2. The handle according to claim 1, wherein the multiplying element (122) sweeps an angle equal to 2a during its rotation, wherein a rotation of zero corresponds to the closed position of the handle lever (10) and a rotation of 2a corresponds to the open position of the handle lever (10).

3. The handle of claim 1, wherein the multiplication element (122) includes a second gear portion (122a) and a third gear portion (122b) of different radii, wherein the third gear portion (122b) has a larger radius than the second gear portion.

4. The handle according to claim 3, wherein the input element (120) supports a first gear portion (120a), the first gear portion (120a) being engaged with the second gear portion (122a) of the multiplication element.

5. The handle according to claim 4, wherein the third gear portion (122b) of the multiplication element (122) is engaged with a fourth gear portion (121a) of the output element (121).

6. Handle according to any of claims 1-5, characterized in that the output element (121) is rotatably connected to the input element with respect to the first rotation axis (Z) or an operating bolt rotation axis (Z') and is integrally connected to the operating bolt (11).

7. The handle according to any of claims 1-5, wherein the input element (120) is integrally fixed to a peg (13) for connection to the handle lever (10).

8. Handle according to claim 7, characterized in that the pin (13) is rotatably fixed to a first seat (14) of the handle lever (10) to which the movable side is connected.

9. The handle according to claim 8, wherein the first seat (14) comprises a seat (142), the seat (142) housing the multiplier gear device (12).

10. Handle according to claim 9, characterized in that said seat (142) has side walls (142a, 142b) arranged symmetrically with respect to said vertical axis (Y) and inclined with respect thereto by said angle a.

11. The handle according to claim 10, wherein the multiplication element (122) comprises an abutment side (122c), the abutment side (122c) being arranged to abut on the side walls (142a, 142b) of the seat in the closed and open positions of the handle lever (10), respectively.

12. Handle according to any of claims 8 to 11, characterized in that it comprises a second seat (15), said second seat (15) facing the rear of said first seat (14) and comprising an elastic profile (150).

13. The handle according to claim 12, wherein the input element (120) comprises an engagement protrusion adapted to snap onto the resilient profile (150) in the closed and open position of the handle lever (10).

14. The handle according to claim 13, wherein the angle a has a value between 15 ° and 30 °.

15. The handle according to claim 14, wherein the angle β has a value of 90 °.