CA2036276A1 - Waterproof sill for a revolving door - Google Patents

Abstract

WATER-REPELLENT REVOLVING DOOR THRESHOLD PRECISE OF DISCLOSURE A threshold to be installed under the revolving door of a building. The threshold is made up of a profile comprising a first part, freely inserted directly under the lower edge of the closed door, and a second part, projecting out of the plane of the closed door and against which the door abuts. The profile is crossed by rainwater drainage channels, thanks to which rainwater hitting the door is drained away without being able to enter the building at threshold level. The threshold is characterized in that it adapts equally to revolving doors towards the inside or outside of the building.

Description

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FIELD OF THE INVENTION
The invention relates to revolving door sills for houses and other buildings.
STATE OF THE ART
In countries with harsh winters like Canada, house and other building contractors must take care to properly seal door seals and windows, not only to ensure the comfort of the occupants of the house by preventing cold air infiltration which would lower the indoor temperature but also so to prevent water infiltration, in particular rainwater. In effect, water infiltration at the door seals and windows are likely to create ice bridges in the frame, which can compromise its structure and therefore create ~ costly repairs. In addition, even if good joints watertight have been installed between the jamb and the door or window, these joints will only crumble over time and wear; it is not always easy to replace them.
This problem is particularly critical at the level of threshold of a door, because the doors are likely to be opened more often than windows, and moreover, their threshold is found by definition at ground level where rainwater can squirt in bouncing at the end of their fall on the ground or on the door, and even accumulate in certain circumstances. Rainwater can therefore infiltrate around the threshold between it and the door and the adjacent portion of the jamb.

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We know your threshold profiles which favor the rainwater drainage which can infiltrate through them.
Patent USA 4,831,779 granted in May 1989 to the company Schlegel body. is representative of these thresholds. Threshold 20 is anchored in 43 and 58 at the base of a door jamb 56 by a plate of common base 17, to project outside the door 10, and comprises a tight seal 39 of generally cross section in V coming up against the lower edge of door 10 when in the closed position. The threshold 20 includes a cavity 60 for receive infiltration water, which can be drained to the exterior by a drainage system integrated into the threshold.
Such threshold profiles are acceptable in the case of revolving doors all opening in the same direction.
However, these thresholds are effective only for doors rotating in one direction, usually inward as in the above-mentioned Schlegel patent. They can not not be used interchangeably for revolving doors inside only for doors that turn outwards. ~
GOALS OF THE INVENTION - ~ -The main object of the invention is to provide a threshold revolving door, which prevents rainwater infiltration towards the interior of a house by the base of a revolving door, whether this door is turning inwards or turning towards - the exterior.
An important object of the invention is that this threshold . '':

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- 203 ~ 276 also establish a waterproof thermal seal under the door, durability is extended compared to already existing joints.
A general object of the invention is to reduce costs for manufacturing water-repellent and thermally insulating thresholds door SUMMARY OF THE INVENTION
According to the invention, a threshold is provided to be installed under the revolving door of a building. The threshold consists of a profile with a first part, freely inserted directly under the bottom edge of the closed door, and a second part, protruding out of the plane of the closed door and against which the door abuts. The profile is crossed by rainwater drainage channels, through which rainwater knocking on the door is evacuated without being able to enter the building at the threshold. The threshold is characterized in that it adapts indifferently to doors turning inwards or towards outside the building.
More particularly, the invention relates to a threshold of revolving door of a building to make it rainproof; -the base of the door and intended to be anchored to its door frame, comprising: (a) a first structural member, rigid and water-repellent, freely placed directly under said door in the closed position, so as to delimit between them a weak free passage; (b) a second structural, rigid and water-repellent member, integral with the first organ and having a raised shoulder against which comes abut the closed door; (c) drainage means, for evacuating : '::. . '.

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outwards rainwater which may have infiltrated into said free passage, through one of said rigid structural members;
characterized in that said threshold adapts to a revolving door inward as well as a revolving door to outside.
`According to a first model of the invention, said door rotating is of a model opening towards the outside, said second body protruding inward from the closed door and said first member defining an upper wall, a bottom and an outer front wall; the door threshold being characterized in this way said drainage means consist of pipes passing through said first member and having inlets, opening on said free passage through the upper wall said first member, and outlets, opening to the outside at - 15 through said front wall of said first member.
Said upper wall will then advantageously inclined downwards in the direction of said raised shoulder of - second member, characterized in that said inputs of pipes are adjacent to said second member shoulder.
Preferably, said first organ will then be a hollow profile, the bottom of said first member being inclined towards the bottom in the direction opposite to said second organ and constituting in the hollow of said hollow profile said pipes for rainwater drainage.
Preferably, a third organ will also be provided threshold structure, rigid and water repellent, detachably anchored 203627 ~

by means of attachment to said first member, and comprising other pipes having inputs, in fluid communication with said outlet from the pipes of the first threshold member, and outlets, opening outwards.
It would be desirable to add anti-reflux means, installed on said external pipe outlets, for prevent the infiltration of rainwater through these pipes water drain. These anti-reflux means may consist of platelets, anchored on said front wall of the organ exterior vis-à-vis its exits and projecting towards outside and down.
Preferably, a strip will also be provided waterproof, flexible, thermal seal, anchored by means anchoring to said raised second shoulder and engaging sealingly, greenhouse, the lower edge of the door in closed position. Said means for anchoring the waterproof strip can advantageously include a semi-invagination circular of said raised shoulder of second organ, in the form of C inverted in section, said waterproof strip consisting of a body `20 main forming a V in section having at the end of one of its legs a semicircular sectional border, which is inserted greenhouse and removably in said second invagination organ, so that the V of the band is crushed and wedged between the shoulder and the door when the latter is closed.
Preferably, said raised shoulder will generally be straight and vertical but will include at its upper free end a 2 ~ 276 protruding part outside the general plane of the rest of said shoulder, so that said watertight strip, being crushed when trapped by the closure of said revolving door, releases the body main of said second structural organ shoulder, so introduce a thermal tolerance which takes account of variations between the outside and inside of the building without that the thermal insulation of said joint strip at said door is not questioned.
According to a second model of the invention, said door rotating will be of a model opening inwards, said second member projecting outward from said door closed and defining an upper wall, a bottom and a wall outside front; the door threshold being characterized in that said drainage means consist of pipes passing through said second member and having inlets, opening onto said free passage through probes raised shoulder, and outlets, opening to the outside through said front wall - of said second organ.
The various secondary characteristics recalled above for the first threshold model, can easily be adapted to the second model, as it will be apparent to the man of profession, with slight modifications. Besides, it it is not at all excluded that the drainage holes of the two profile models can exist in the same profile, so that, depending on whether the revolving door opens inward or outwards, the non-operating drainage holes are . . ~,.

, .-. .:: -203 ~ 276 tightly closed by removable waterproof caps.
Thus, the profiles can be mass produced, and can be used for all kinds of revolving doors, with economies of scale in manufacturing costs there 5associated.
SHORT DESCRIPTION OF THE DRAWING FIGURES
Figure 1 shows a perspective view of a door opening towards the outside of a wall, and equipped with a door threshold rotating according to the invention;
10 Figure 2 is a broken vertical section of the door Figure 1, showing on an enlarged scale a door threshold in section - transverse, according to a first embodiment of the invention comprising the molding for the exterior extension of the door threshold;
FIG. 2a is a view similar to that delimited by 15 ellipse 4 of figure 2, but on a reduced scale and illustrating ; a second embodiment of revolving door threshold, without molding;
FIG. 2b is a view similar to that of FIG. 2a, . but showing a third realization of door threshold, with door sill extension molding; :
20 Figure 2c is a view similar to that of Figure 2a: -: but showing a fourth embodiment of door threshold, without molding;
Figure 3 shows in vertical section the base of a door ~:
rotating opening towards the inside of a wall, including in section 25 transverse a door threshold according to a fifth embodiment of the invention with molding for external extension of the threshold, such 7: ~

2 ~ 3 ~ 276 that it appears along line 3-3 of Figure 8a;
FIG. 3a is a view similar to that of FIG. 3, but showing a sixth embodiment of the invention, without molding;
Figure 4 is an enlarged view of area 4 of Figure 2;
5 Figures 5-6 show in cross section the profiles envisaged as door thresholds according to the invention, that of the Figure 6 being a truncated model of that of Figure 5;
Figure 7 shows in cross section the envisaged profile as a molding for extending the door threshold according to the invention;
Figure 8 is a broken horizontal section of the door opening outwards, fitted with one of the door sills to extension molding and taken along axis 8-8 of the figure l;
Figure 8a is a horizontal section and partially 15fragmented, revolving door opening inwards, equipped one of the door thresholds with extension molding; and Figure 9 is an enlarged cross section of the deflector of wind installed in front of the drainage openings of the moldings door threshold extension.

In Figures 1-2, the revolving door is installed swiveling outwards, by a vertical edge 12a on a wall exterior 14, thanks to hinges (not shown) in order to be able ., ~
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close a door opening 16, made in this wall 14. The door 12 can be of any known type, for example of insulated steel retaining a polyurethane foam panel. Door opening 16 is delimited by a frame 18, made for example of pine, and made up of two opposite vertical jamb sections, 20 and 22, and an upper section 24. At the time of closure of door 12 in the plane of wall opening 16, the borders side and top of door 12, at 12a, 12b and 12c respectively, abut against the jamb sections 10 20-24. The upper section of frame 24 comprises a part protruding 24a, directed outwards and overhanging so spaced apart the upper edge 12c of the closed door; so there lower edge 12d of door 12 clears the ground S so that set ground clearance A.
In the closed position, door 12 will be sealed at upper frame 24 by a first rigid weather strip 26, for example of the magnetic type, anchored horizontally on the frame 24, by a second rigid weather strip 28, by magnetic example, vertically anchored on the frame 20 (of the side of the door handle 30), and a third strip cold, compressible and for example elastomeric, anchored vertically on the frame 22 on the hinge side.
In the figures of the drawings, to distinguish the door opening towards the inside of the door opening towards the outside, the door frame 18 and door 12 elements of Figures 3, 3a and 8 (revolving door opening inwards) will be differentiated by An apostrophe.
According to the invention, there is proposed a threshold member for revolving door, 34, intended to lie directly flat on the ground S in the plane of the frame 18, and to be anchored to it eg by screws V or other equivalent anchoring means. The organ of door threshold 34 is shown in Figure 2a and consists of a rigid and hollow profile, preferably made of polyvinile (PVC), having a length, a width and a thickness.
The profile 34 connects the two vertical sections 20, 22 of - 10 frame along its length and occupies the entire thickness of the frame across its width. Profile 34 consists of two parts across its width: a first large part 34a, thick decreasing towards its free edge, and a second small part 34b, thicker towards its free edge, the first part being wider and thicker than the second part. The second profile part 34b is intended to slide freely under the closed door 12, to occupy a large fraction of the travel A and thus define a small clearance a between them, while the first part 34a rests in the rest of the frame 18.
The large part of section 34a can include width of two to three structural elements (Figures 2a-2b and figures 5-6), quadrangular in section, according to the total thickness of the jamb 18, and is supported by small legs 36 au-above ground S; while the small section part 34b contains only one quadrangular structural element in section.

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- 2 ~ 3 ~ 276 The offset 37 between the plane of the upper faces of the sections of profile 34a and 34b, is generally vertical, but includes a invagination 38 over its entire length, in the shape of an inverted C in chopped off. The invagination or groove 38 with reduced opening receives a transverse lip, semi-circular in section, 40a, dependent on a compressible weather strip 40, for example elastomeric and generally forming a V in section.
When door 12 is closed, the inside of the bottom edge of door 12d comes to rest against weather stripping 40 and compresses it slightly (figure 4), wedging the apex of the V
of the weather strip 40 between the door 12 and the upper free edge 37a offset 37, and blocking it in position by the latch of the handle 30.
Preferably, the free (upper) edge of the profile 37a will protrude slightly outside the plane of offset 37, from so that the V of the weatherstripping 40 wedged by the door 12 there presses without the main body of the weatherstripping 40 pressing against the main wall of offset 37. Preferably, the free upper surface of the section part 34a is corrugated or knurled, at 42 (Figures 8-8a), to create a surface non-slip. Advantageously, the free edge of the small part 34b profile will come substantially vis-à-vis the outer face of the closed door 12, as suggested in FIGS. 2, 2a-2c and 3-3a.
The compressible weather stripping 32, 40 can be made of a flexible and waterproof material, for example a resistant rubber.
The upper free edges of the sections 34a and 34b each have a lip 44, 46 respectively, facing the bottom, and one or the other of these lips is intended to hang a threshold extension molding 48, as will be detailed further. In addition, the extended threshold in Figure 5 will include, at level of the upper wall of the free structural element of the part 34a, a rib 44a dependent on the upper wall 42 of the threshold and substantially parallel to the lips 44 and 46. Thus, when the profile is fragmented slightly beyond this rib 44a, (FIG. 6), this rib will become the lip which hang the corresponding lip 58 (figure 7) from the molding of extension 56, according to the embodiment of FIG. 3, as shown will see further. The free edge of the lips 44, 46 and 44a are substantially coplanar.
According to the first profile model 34, in FIG. 2a, a first series of water drainage orifices, 50, are provided on the upper face of the small section part 34b, adjacent at offset 37 and therefore at its lowest level, and a second series of drainage holes 52, on the front face of the profile 34 under his lip 46. So when it rains, the water droplets can freely enter under door 12, through opening a, the long * e the upper wall of the small profile 34b, to come accumulate at the bottom against the offset 37. The water is then i 25 automatically evacuated by gravity, through the orifices of drainage 50, along the slope of the bottom of the profile 34b created by the legs 36 of the profile 34a and directed towards the free edge of the profile 34b, inside the hollow profile 34b, and towards the exterior through the drainage holes 52.
Advantageously, rigid wind deflectors 54, by PVC example, are installed in front of the drainage holes : external 52. These deflectors 54 may have the form of plates, anchored to the front face of the profile 34 in front of the holes 52 with a tilted forward orientation (outside) and down. These deflectors 54 seek to prevent reflux ~. ... ...
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- 203 ~ 276 of water through the drainage orifices 52 and 50. ~;
It will be understood that with such a door threshold 34, the water rain cannot seep inside, through the threshold, even if the seal 40 just crumbles with wear, since the water droplets cannot reach this attached 40 which overhangs the small profile 34b on which flows rainwater, profile 34b, the role of which is then purely thermal seal.
In the model of Figures 2b or 4, a molding of extension 56 is installed against the free face of the small section part 34b, so as to project outside of the door 12. The molding 56 will advantageously be a profile with quadrangular structural element in section, unique, of which the thickness decreases towards its free front edge (outside). The edge rear (interior) of molding 56 includes a rigid lip 58 directed upwards, to hang the rigid lip 46 of the greenhouse profile 34 so as to secure them to each other so removable. Drainage orifices 60 are provided on the wall vertical rear 56a of the molding 56, opposite the orifices 52, and other orifices 62, on the front vertical wall 56b of the molding, to allow the evacuation of rainwater through the profile 34b and molding 48. A rigid lip 64 projects transversely of the wall 56a, substantially in the plane of the bottom of the molding 56, to be anchored to the bottom of the profile 34b by watertight means, eg screws V. The upper face 56c of the molding will advantageously be non-slip, eg quilted, as ~

13 ~ -`- 2036276 for the face 42 of the profile 34a. The wind deflectors 54 are then moved to the front face 62 of the molding 56, rather than ; on the front face of the profile 34b, because this then already abuts on molding 56.
5 Figures 3 and 3a show clearly how easy it is to adapt the profile 34 'and, if necessary, its molding of extension 56 ', to a door 12' which opens towards the inside of a building, rather outside, as was the case for threshold models in Figures 2, 2a -2c. It's just then 10 to provide drainage holes 66, 68 for rainwater, at the through each of the vertical partitions of the structural elements of the large part 34a 'of profile and, where appropriate, through the molding 56 ', respectively, including through the wall of offset 37 'in 70, rather than through the small part 34b' of 15profile as was the case in Figures 2 and seq.
Preferably, the holes 66 and 68 of the profile 34a ' occupy the same substantially horizontal plane, at the bottom of the profile 34a 'and molding 48', but will be slightly offset laterally to discourage back flow of water through the molding 20and the profile. The same will be true for ports 60 and 62 of the molding 48 according to the first models. The -part of profile 34a 'therefore projects completely towards the outside, while the small part 34b 'remains directly under the closed door 12 '. Wind deflectors 54 ' 25 are then installed on the free, thin and hollow end of the profile 34a ', vis-à-vis the external drainage holes 66 or, if the .
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molding 48 'is installed on the profile 34', opposite the exterior drainage ports 68.
As with the revolving door opening inwards, . 12, when the revolving door opening outwards, 12 ', is : 5 closed, the outer face of the lower edge of the door 12d comes lean against the weatherstrip 40 'and compress it slightly (Figures 3-3a), by wedging the apex of the V of the weather stripping 40 'between the door 12 'and the upper free edge 37a' of the offset 37 ', and locking it in position by the handle lock 30 '.
Consequently, the small section of profile 34b or 34b ' is always found directly under the closed door 12 or 12 ', whether it opens inside or outside; the big one profile section 34a or 34a 'protrudes completely at inside, when the door opens to the outside, and completely outside, when the closed door opens inside; and the threshold extension molding 56 or 56 ', completely outside, whether the closed door opens inside or outside outside. The main feature of the invention therefore has - trait ~ this reversibility of the profile 34, whether or not accompanied by the molding 56, according to the revolving door 12 under which is:
installed the threshold will turn inward or outward from the wall of the building, to open.
Molding 56 (56 ') and profile 34 (34') will be rigid and water repellent, and preferably made of PVC. .; ~

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Claims (18)

THE EMBODIMENTS OF THE INVENTION, REGARDING WHICH A
EXCLUSIVE RIGHT OF OWNERSHIP OR PRIVILEGE IS CLAIMED, ARE
DEFINED AS FOLLOWS: 1. Building revolving door sill to seal to rain water the base of the door and intended to be anchored to the building in the plan of the frame of this door, the threshold including:
(a) a first structural member, rigid and water repellent, freely placed directly under said door in the closed position, so to delimit between them a small free passage;
(b) a second structural member, rigid and water-repellent, integral of said first organ and generally occupying its plane and having a raised shoulder against which abuts the closed door;
(c) drainage means, for draining through one of said rigid structural bodies, outward, rainwater which may have infiltrated said free passage;
characterized in that said threshold adapts indifferently to a inward swinging door as well as single door rotating outwards. 2. A revolving door threshold as defined in claim 1, wherein said revolving door is of an outward opening pattern, said second member projecting inward from the closed door and said first member defining a wall upper, a bottom and an outer front wall; the threshold of door being characterized in that said drainage means consist of pipes passing through said first member and having entrances, opening onto said free passage through the upper wall of said first member, and outlets, opening outside through said front wall of said first member. 3. A revolving door threshold as defined in claim 2, wherein said top wall slopes downward toward of said second member raised shoulder, characterized in that said conduit inlets are adjacent to said shoulder second organ. 4. A revolving door threshold as defined in claim 3, characterized in that said first member is a hollow section, the bottom of said first member being inclined downwards in the direction opposite said second member and constituting in the hollow of said hollow profile said pipes for the evacuation of water from rain. 5. A revolving door threshold as defined in claim 2, additionally comprising a third threshold structural member, rigid and water-repellent, removably anchored by means for hooking to said first member, and comprising other pipelines having inlets, in fluid communication with said outlet of the pipes of the first threshold member, and exits, opening outwards. 6. A revolving door threshold according to claim 2 or 5, additionally comprising anti-reflux means, installed on said exterior pipe outlets, to prevent the infiltration of rainwater through these pipes water drainage. 7. A revolving door threshold according to claim 2, additionally comprising anti-reflux means, installed on said exterior pipe outlets, to prevent the infiltration of rainwater through these pipes water drain; these anti-reflux means consisting of pads, anchored to said front wall of the first vis-opposite its said outlets and projecting outwards and down. 8. A revolving door threshold according to claim 5, additionally comprising anti-reflux means, installed on said exterior pipe outlets, to prevent the infiltration of rainwater through these pipes water drain; these anti-reflux means consisting of pads, anchored on said third threshold member vis-à-vis its said outlets and projecting outward and downward low. 9. A revolving door threshold according to claim 1, additionally comprising a leaktight, flexible seal strip thermal, anchored by anchoring means to said raised shoulder of a second organ and engaging in a sealing manner, in a greenhouse, the lower edge of the door in the closed position. 10. A revolving door threshold as defined in claim 1, wherein said revolving door is of an inward opening pattern, said second member protruding outward from said closed door and defining a top wall, a bottom and an outer front wall; the door sill being characterized in that said drainage means consist of pipes passing through said second member and having inlets, opening onto said free passage through its said shoulder raised, and exits, opening to the outside through said front wall of said second member. 11. A revolving door threshold as defined in claim 10, wherein said upper wall of the second member is inclined towards the bottom outwardly and in that said second member is a hollow section, the bottom of said second member being inclined in the same general direction as said upper wall, so that said upper wall and said bottom in the hollow of said section hollow constitute the said pipes for the evacuation towards rainwater outside. 12. A revolving door threshold as defined in claim 11, additionally comprising a third threshold structural member, rigid and water-repellent, removably anchored by means for hooking to said second member, and comprising other pipelines having inlets, in fluid communication with said outlet of the pipes of the second threshold member, and exits, opening outwards. 13. A revolving door threshold according to claim 11 or 12, additionally comprising anti-reflux means, installed on said exterior pipe outlets, to prevent the infiltration of rainwater through these pipes water drainage. 14. A revolving door threshold according to claim 11, additionally comprising anti-reflux means, installed on said exterior pipe outlets, to prevent the infiltration of rainwater through these pipes water drain; these anti-reflux means consisting of plates, anchored on said front wall of the second member vis-à-vis screw its said outlets and projecting outwards and towards the bottom. 15. A revolving door threshold according to claim 12, additionally comprising anti-reflux means, installed on said exterior pipe outlets, to prevent the infiltration of rainwater through these pipes water drain; these anti-reflux means consisting of pads, anchored on said third threshold member vis-à-vis its said outlets and projecting outward and downward low. 16. A revolving door threshold according to claim 9, wherein said waterproof strip anchoring means comprises a semicircular invagination of said raised shoulder of second member, in the shape of an inverted C in section, said sealing strip being consisting of a main body forming a V in section having at the end of one of its legs a semicircular border in cup, which is inserted tightly and removably in said second organ invagination, so that the V of the tape crashes getting caught between the shoulder and the door when it is closed. 17. A revolving door threshold according to claim 16, wherein said raised shoulder is generally straight and vertical but comprises at its free upper end a projecting part out of the general plane of the rest of said shoulder, so that said waterproof strip, by crushing when wedged by the closure of said revolving door releases the main body of said second structural member shoulder, thereby introducing a thermal tolerance that takes into account variations in temperature between the outside and the inside of the building without the thermal insulation of said joint strip at the level of said gate is questioned. 18. A revolving door threshold according to claim 1, wherein said first and second structural members do all the width of said door, said second structural member being much longer than the first structural member and comprising an upper outer surface with non-slip means.