FR3095225A1 - Door pinch protection device - Google Patents

Abstract

Finger-pinching protection device (10) capable of being fixed to the edges of an opening (3) and a frame (1) of a door, window or similar opening, comprising a plurality of protective blades ( 12, 18, 20) extending longitudinally over at least a part of the height of the frame or the opening, each protective strip having a section in normal section in the form of an L with a radial articulation part (14) adapted to pivot about an axis of rotation (5) oriented longitudinally and a circumferential covering part (16) substantially normal to the radial articulation part (14). Figure 1

Description

Anti-pinch protection device for door

Field of invention

The subject of the invention is an anti-finger trapping protection device capable of being fixed to the edges of an opening and a frame of a door and the protective blades constituting it.

We know that such a device is particularly useful for children and teenagers by preventing them from being exposed to the risk of pinching their fingers in the door hinge gap, which can cause serious and lasting injuries.

State of the art

Very many anti-pinch protection devices exist and are marketed, such as that presented by the document FR 2726317. The protection device of this document comprises a semi-rigid or rigid profiled strip fixed on one side to the frame of a door and whose free edge is connected to a flexible band itself fixed to the opening. This device is effective but its elements are fixed outside the hinge space of the door and are therefore very visible, which is unsightly.

Document FR 2666841 proposes an anti-finger trapping device consisting of a single folded metal sheet which comprises two radial parts and two circumferential overlapping parts. The central part of the sheet is used as a spring, the rest position of which corresponds to the fully open position of the device and which self-holds the radial and covering parts resting against the frame for one and against the opening for the other. The spring also performs a safety function on the "hinge" side. To be able to be put in place in this way, the thickness of the metal sheet must be very small, of the order of 0.2 mm, which leads to a low mechanical resistance of the central part of the metal sheet of the device. On the other hand, the system cannot comprise more than two radial and covering parts and consequently these two covering parts must each have a large circumferential dimension and cannot be completely concealed in the closed door position.

Brief description of the invention

The object of the present invention is to provide an anti-finger trapping protection device capable of being fixed to the edges of an opening and a frame of a door, window or similar opening.

This device includes:
- a plurality of protective slats extending longitudinally over at least part of the height of the fixed frame or the sash, each protective slat having a section in normal L-shaped section with a radial hinge part extended radially externally by a circumferential covering part, the radial articulation part being capable of pivoting around an axis of rotation oriented longitudinally;
- each protective blade being mechanically connected to the or two adjacent protective blades in the radial hinge part of the protective blade to ensure the relative pivoting of the protective blades around the axis of rotation between two positions:
- A closed position in which the plurality of protective blades is superimposed; And
- A maximum open position in which the radial hinge parts of the protective blades have a maximum relative rotation such that the circumferential covering parts of two adjacent protective blades remain in contact.

This device has the advantage of being very compact and of being able to fit practically completely into the joint space between the frame and the opening of a door. When the door is closed, even the circumferential covering parts of the protective blades may not be visible.

The number of protective slats can be between five and twelve depending on the maximum opening angle of the sash relative to the door frame.

According to an advantageous embodiment, each protective blade comprises a plurality of tabs linked to the radially outer part of the radial hinge parts and extending freely radially internally.

Advantageously, two adjacent protective strips are mechanically connected by links each connecting the radially inner ends of two circumferentially adjacent tongues.

These links can be split sleeves, preferably substantially cylindrical, or staples.

Advantageously, the relative rotation between two adjacent protective blades is limited by links each connecting a radially outer zone of the radial hinge part of the first protective blade to a radially outer zone of the radial hinge part of the second protective blade, the two radially outer zones being circumferentially adjacent.

These links can be closed flexible rings.

The invention also relates to a protective blade for an anti-finger pinch protection device as described above. The protective blade extends longitudinally with an L-shaped normal cross-section with a radial hinge part extended radially outward by a circumferential covering part. This protective blade is characterized in that it comprises a plurality of sections, each section comprising two tabs linked to the radially outer zone of the radial hinge parts and extending freely radially internally and two zones for fixing a link limitation of the gap between protective blades.

Preferably, the two tabs of a section of a protective blade are longitudinally separated by a distance l .

Also preferably, the distance separating the tongues of two longitudinally adjacent sections is a multiple of this distance l .

It is also advantageous for the two zones for fixing spacer links of a section to be separated longitudinally by this same distance l .

Preferably, the distance separating the spacer link attachment zones of two longitudinally adjacent sections is a multiple of l .

The protection device is thus made up of identical blades, which makes it very easy to adapt the device according to the height of the doors and their maximum opening angle.

Preferably, between the tongues of two adjacent sections, are arranged empty areas of the same outer shape as the tongues, each empty area being separated by a tongue by a longitudinal distance equal to a multiple of the distance l .

Preferably, between the zones for attaching spacer links of two adjacent sections, there are empty zones of the same external shape as these fixing zones, each empty zone being separated from a fixing zone by an equal longitudinal distance. at a multiple of the distance l .

These empty zones, of the same shape as the tongues and the fixing zones of the spacing links, allow the establishment of the fixing links of the blades between them as well as links limiting the spacing and the rotation of the protective blades during assembling the device.

These empty areas also have the advantage of allowing the storage of links and links in the closed position of the entire frame and sash.

The protective blades are advantageously made from metal plates, for example tempered aluminum with a thickness of between 0.2 and 0.40 mm.

The protective blades can also be made by molding, for example of a rigid plastic material.

The invention also relates to an assembly of a leaf and a door frame and an anti-finger trapping protection device as described above in which a protective blade is fixed to the edge of the frame and a protective blade is attached to the edge of the sash.

Description of Figures

The invention is described below with the aid of figures 1 to 16, given solely by way of illustration:

has in the open position and in normal section a protective device comprising seven protective blades;

shows in the closed position and in normal section the device of Figure 1;

shows a perspective view of a section of protective blade;

illustrates the mode of attachment of the protective blades by their tabs;

illustrates the placement of the connecting tabs and spacer rings between three adjacent protective blades;

is an enlargement of a radial joint part with a connection zone and an attachment zone;

is an enlargement of a radial joint part with an empty connection area and an empty attachment area;

shows an example of a tab fixing sleeve;

illustrates the placement of a fixing sleeve on two adjacent tabs;

has a clip for fixing the tabs;

illustrates the placement of a staple on two adjacent tabs;

illustrates an example of a spacer ring;

illustrates the placement between three adjacent blades of spacer rings;

schematically illustrates in normal section three protective blades in the maximum open position;

is a partial perspective view, from above and from the side of the hinges showing an opening and a fixed frame equipped with a protection device in the fully open position;

is a view similar to Figure 15 from the opposite side illustrating the protective role of the protective blades.

Detailed description of the invention

The following description of an anti-pinch device for a door will use as a reference the axis of rotation 5 of the device and a plane normal to this axis. This axis of rotation corresponds to that of the hinges of the door when the device is fixed to the edges of the opening and the frame of the door. The radial Z, axial or longitudinal X and circumferential C directions designate respectively the directions perpendicular to the axis of rotation of the sash, parallel to the axis of rotation of the device and perpendicular to any plane normal to this axis of rotation (see figure 4). In what follows, the expressions “radially”, “axially or longitudinally” and “circumferentially” respectively mean “in a radial direction”, “in the axial or longitudinal direction” and “in a circumferential direction” of the device. The expressions “radially inside, respectively radially outside” mean “closer, respectively further away, from the axis of rotation of the device, in a radial direction”.

Figures 1 and 2 show schematically, in views in sections normal to the axis of rotation 5, a protection device 10 according to the invention fitted to a door comprising a frame 1 and an opening 3. The opening 3 rotates around the axis of rotation 5 of the door hinges. The door is in the open position in figure 1 and in the closed position in figure 2.

The protective device 10 consists of a plurality of protective blades 12, in the example presented 7 protective blades. Each protective blade 12 extends in the longitudinal or axial direction by a length corresponding to the height of the fixed frame 1 or of the opening 3 or to a part of this height. Each protective blade 12 comprises a radial hinge part 14 and a circumferential covering part 16. The covering part 16 is oriented circumferentially relative to the axis of rotation 5 of the hinges of the door. Slat 18 is fixed to the edge of frame 1 and slat 20 is fixed to the edge of sash 2.

In the open position as shown in Figure 1, the protective blades 12 move apart from each other during the rotation of the opening 3 around the axis 5. During this rotation, the circumferential covering parts 14 slide on each other but remain in permanent contact, which makes it possible to completely close the space 7 created by the articulation between the fixed frame 1 and the sash 3 during the rotation of the sash around of axis 5.

On the side of the hinges, this space 7 is also closed off by the radially inner ends of the radial hinge parts 14. These 7 ends thus prevent any penetration of a finger, even that of a small child.

The number of protective slats depends on the opening angle of the sash relative to the frame as well as the thickness d of the area of the frame on which the sash rests in the closed position. This thickness is of the order of 18 to 22 mm.

For an opening angle of 180 degrees, a door leaf thickness of 40 mm and a distance from the axis of the hinges to the frame of 10 mm, the circumferential length to be covered is 157 mm. With a device of 9 blades, there are 8 intervals to be covered of 19.6 mm, by adding an inter-blade overlap of 2.4 mm, the developed length of each circumferential part of overlap is therefore 22 mm. The device is therefore entirely concealed in the closed position if the distance d is 22 mm or more.

For a distance d of 18 mm, one can either limit the opening angle to 145 degrees, or increase the number of protective blades to 11.

Figure 3 shows a perspective view of part of a protective blade 12. A complete protective blade corresponds to about six identical sections 26. Each section 26 has in the example presented an axial length L. Such a protective blade can be produced by shaping a metal plate, for example of tempered aluminum with a thickness of 0.2 to 0.4 mm. It can also be made by molding a metallic material such as aluminum or a rigid plastic material such as a polyamide or a polyester or the like. The section 26 of protective blade 12 presented in FIG. 3 comprises a radial hinge part 14 and a circumferential covering part 16. The circumferential covering part 16 is curved. Each section 26 also includes two connecting tongues 22 and two fixing areas 24 of the links limiting the spacing between two adjacent protective blades. It also includes empty zones 28, 30, with the same external geometries as those of the connecting tongues 22 and the fixing zones 24 of the spacing-limiting links. A complete protective slat thus comprises around 12 connecting tongues and 12 link fixing zones, this corresponds to six inter-blade linking zones and fixing of the gap-limiting links. Each zone comprises two tabs and two link attachment zones.

All of the tongues 22, attachment zones 24 and empty zones 28, 30 can be obtained by cutting out the radial hinge part 14 of the section 26 of the protective blade 12. The geometry shown of the connecting tongues 22 corresponds to a form of truncated isosceles triangle 221 (see FIGS. 6 and 7) whose base 222 is placed in the radially outer zone of the radial hinge part 14 with a longitudinal orientation. The truncated isosceles triangle 221 extends radially inward. The truncated isosceles triangle 221 is continued by a rectangular area 223. This rectangular area 223 of the tabs 22 serves as a connection area with a connecting tab 22 of an adjacent blade of the anti-pinch device. Area 223 is drilled in its center. We see a rectangle-shaped hole 224 and two circular holes 225. The hole 224 is suitable for a connection between two connecting tabs by means of a split rigid sleeve 32 (see Figures 8 and 9), the holes 225 are suitable to a connection by means of a clip 36 (see Figures 10 and 11). To obtain a connecting tab 22, the two edges of the truncated isosceles triangle 221 are cut as well as the outside of the rectangular zone 223. To obtain an empty zone 28 of identical shape (FIG. 7), the base 222 is also cut. of the truncated isosceles triangle 221.

The attachment zones 24 of the spacing limiting links correspond to two rectangular zones 241 radially offset from each other and connected by a slot 242 of small width. The corresponding empty zones 30 are obtained by cutting out a rectangle of geometry including the whole of a zone for fixing the links.

In the example presented, the connecting tongues 22, the fixing zones 24 of the spacer link, the empty connecting zones 28 and fixing 30 follow one another regularly axially in blocks of 4 patterns with a constant distance l/2 between two reasons. In the first block, there is successively a tab 22, an attachment area 24, a second tab 22 then a second attachment area 24. There are then 3 blocks made up of empty areas: an empty connection area 28, an empty area 30, an empty connection area 28 and an empty attachment area 30.

Each section of blade has two connecting tongues with the two adjacent blades of the device. As it is desirable to have about six connection points, this means that each blade comprises six sections. For a standard door 2020 mm high, each slat section will be around 330 to 340 mm. Since the distance l corresponds to the distance between two identical patterns (see FIG. 3), and since in the example presented the length of the section is 8 l , l is of the order of 35 to 45 mm.

Figures 4 and 5 show three sections 26.1 26.2 26.3 of adjacent protective blades 12 and explain how these protective blades are connected to each other in the anti-pinch device according to the invention. These figures 4 and 5 also illustrate the axial or longitudinal direction X, the radial direction Z and the circumferential direction C.

Each blade has two connecting tabs 22.1 and 22.2. The three protective blades 26.1 26.2 26.3 are each axially offset respectively by an axial distance l . Consequently, the two connecting tongues of the blade 26.2 are adjacent circumferentially with each a tongue of another blade. The tongue 22.2 of the blade 26.1 is circumferentially adjacent to the tongue 22.1 of the blade 26.2 and the tongue 22.2 of the blade 26.2 is circumferentially adjacent to the tongue 22.1 of the blade 26.3.

The same is true for the zones for fixing the spacing limitation links.

Figure 5 shows in perspective view from the axis of rotation 5 of the device the three sections of protective blades of Figure 4 with the inter-blade fixing sleeves and the rings 34 for limiting the gap in place.

Figures 8 and 10 show two embodiments of the inter-blade protective connections. In Figure 8, we see a sleeve 32 split connection. This sleeve can be made of a rigid plastic. By opening the sleeve 32, that is to say by moving the slot 321 aside, it is put in place in the radially inner zones 224 of two adjacent connecting tongues (FIG. 9). Their width corresponds to that of the zones 224 pierced in the center of the zones 223. The rigidity of these sleeves is essential because their function is to link two adjacent connecting tongues of two protective blades 12 by blocking any relative axial and radial movement of these two tabs while allowing axial rotational movement. The shape and flexibility of the tongues thus allow a circumferential movement of the tongues relative to each other and thus also of the radial articulation parts 14 relative to each other.

In Figure 10, we see a clip 36 which can be made of metallic material. Figure 11 shows the clip connecting two connecting tabs. The placement of the staples can be done with a standard stapler. The staple is U-shaped with a bottom 361 and two side bars 362. The ends 363 of the staple are inserted into the holes 225 of the zones 223 of the two adjacent tabs 22 then folded down by the stapler by enclosing the two tabs 22. The attachment zones 223 can have their geometry adapted to the shape of the chosen connection, sleeve, staple or other.

Figures 12 and 13 show a flexible gap limiting ring 34 and its schematic placement between three adjacent blades. This figure 13 is a section normal to the axis of rotation 5 of the device. The rings 34 are flexible enough to be able to be introduced into the fixing zones 241 of the protective strips. Their width corresponds to the width of these attachment zones 241 on either side of the slot 242 and their perimeter is a function of the size of the circumferential parts covering the protective blades. They allow a relative spacing of the protective blades such that these circumferential parts always remain in contact. They can be made of reinforced elastomer material or of fabric, for example. These fabrics can be reinforced with fibers such as glass, rayon, PET or other fibers.

The empty zones of geometry corresponding to the connecting tongues and to the fixing zones of the spacing limiting rings have the advantage of allowing the easy installation of the sleeves or connecting clips as well as the spacing limiting rings . They also allow the device to limit its thickness in the closed position to the thickness of the slats, i.e. around 1.4 mm for seven protective slats each 0.2 mm thick.

Figure 14 illustrates the role of the circumferential covering parts 16 in the maximum open position. This figure is similar to figure 13 by adding the parts 16 schematically. It can be seen that the ends 161 of the parts 16 always remain in contact with the part 16 of the adjacent blade. This allows complete closure of the space 7 created between the sash and the frame when the door is opened.

The protective slats thus described have the advantage of having a single geometry regardless of the frame and opening assembly to be fitted.

Figures 14 and 15 are partial perspective views showing a sash and a frame fitted with a protection device in the fully open position, on the side of the hinges and on the side of the articulation space 7.

These figures supplement the previous figures 1 and 2 to show the main function of the device 10, namely to completely close the joint space 7 created between the frame and the opening when the door is opened.

To make the device, we start by cutting the protective blades to the desired length taking into account the door to be fitted. Care is taken to ensure that the connecting tongues of each adjacent blade are offset respectively axially by the length l .

Then, the sleeves or staples and the gap limiting rings are gradually put in place.

Finally, the first slat is fixed on the edge of the frame and the second slat on the edge of the sash.

Claims (16)

Anti-finger trapping protection device (10) suitable for being fixed to the edges of an opening (3) and a frame (1) of a door, window or similar opening, comprising:
- a plurality of protective slats (12) extending longitudinally over at least part of the height of the frame (1) or of the sash (3), each protective slat (12) having a section in normal section in L-shape with a radial articulation part (14) extended radially outwardly by a circumferential covering part (16), the radial articulation part being capable of pivoting around an axis of rotation (5) oriented longitudinally;
- each protective blade (12) being mechanically connected to the or two adjacent protective blades in the radial part of said protective blade to ensure the relative pivoting of said protective blades around said axis of rotation (5) between two positions:
- A closed position in which the plurality of protective blades is superimposed; And
- a position of maximum opening in which the radial articulation parts (14) of the protective blades (12) have a maximum relative rotation such that the circumferential covering parts (16) of the adjacent protective blades (12) remain in contact. Device according to Claim 1, in which the number of protective blades is between 5 and 12. Device according to one of Claims 1 and 2, in which each protective blade (12) comprises a plurality of tabs (22) mechanically linked to the radially outer zone of the said radial articulation parts (16) and extending freely radially internally. Device according to Claim 3, in which two adjacent protective blades (12) are mechanically connected by links (32, 36) each connecting the radially inner ends of two circumferentially adjacent tongues. Device according to claim 4, in which the links are split sleeves (32), preferably substantially cylindrical. Device according to claim 4, in which the links are staples (36). Device according to any one of the preceding claims, in which the relative rotation between two adjacent protective strips is limited by links (34) each connecting a radially outer zone of the radial articulation part (14) of the first protective strip. protection to a radially outer zone of the radial hinge part (16) of the second protective blade, said two radially outer zones being circumferentially adjacent. Device according to claim 7, in which the links (34) are closed flexible rings (34). Protective blade (12, 18, 20) of a finger-trap protection device according to any one of claims 1 to 8, extending longitudinally with an L-shaped normal cross-section with a radial part (14) extended radially externally by a circumferential covering part (16) substantially normal to the radial hinge part, such that it comprises a plurality of sections (26), each section comprising two tongues (22) linked to the radially outer zone of said radial articulation parts (14) and extending freely radially internally and two fixing zones (24) of a link (34) for limiting the inter-blade separation of protection. Protective blade (12, 18, 20) according to claim 9, in which the two tabs (22) of a section (26) are separated longitudinally by a distance l . Protective blade (12, 18, 20) according to claim 10, in which the distance separating the tongues (22) of two longitudinally adjacent sections (26) is a multiple of l . Protective blade (12, 18, 20) according to one of Claims 9 to 11, in which the two zones for fixing spacer links (24) of a section (26) are separated longitudinally by a distance l . Protective blade (12, 18, 20) according to claim 12, in which the distance separating the zones for fixing spacer links (24) of two longitudinally adjacent sections (26) is a multiple of l . Protective blade (12, 18, 20) according to one of Claims 10 to 13, in which, between the tabs (22) of two adjacent sections (26), there are arranged empty zones (28) of the same external shape as said tongues (22), each empty zone being separated by a tongue by a longitudinal distance equal to a multiple of the distance l . Protective blade (12, 18, 20) according to one of Claims 10 to 14, in which, between the zones for fixing spacer links (24) of two adjacent sections (26), empty zones ( 30) of the same external shape as said attachment zones (24), each empty zone being separated from an attachment zone by a longitudinal distance equal to a multiple of the distance l . Protective blade (12, 18, 20) according to any one of Claims 9 to 15, made from a tempered aluminum plate with a thickness of between 0.2 and 0.4 mm.