OSCILLATING-MOUNT SPLIT-HINGE DEVICE DESIGNED TO BE FITTED ON A VERY HEAVY DOOR, AND VERY HEAVY DOOR EQUIPPED WITH SUCH A DEVICE

• US 20110107677A1
• Filed: 11/12/2010
• Published: 05/12/2011
• Est. Priority Date: 11/12/2009
• Status: Active Grant

• Current Assignee: Baumert (Societe Par Actions Simplifiee Unipersonnelle)
• Original Assignee: Baumert (Societe Par Actions Simplifiee Unipersonnelle)
• Inventors: BOURGET, Christian
• Granted Patent: US 8,424,247 B2
• Time in Patent Office: Days
• US Class Current: 49/399
• CPC Class Codes: E05D 11/04 relating to the use of free balls as bearing-surfaces E05D7/06 takes precedence
• CPC Class Codes: E05D 7/06 to allow tilting of the members
• CPC Class Codes: E05F 15/614 operated by meshing gear wheels, one of which being mounted at the wing pivot axis; operated by a motor acting directly on the wing pivot axis
• CPC Class Codes: E05Y 2900/132 Doors

Abstract

An oscillating-mount split-hinge device designed to be fitted on a very heavy door that includes at least one flap or panel mounted to pivot on a frame, includes at least one lower split-hinge for supporting at least the bulk of the load of the flap of the door and at least one upper split-hinge to form an anti-tilting holding point and axial guide of the flap, whereby each lower or upper split-hinge, includes a stationary split-hinge part integral with the frame and a movable split-hinge part, respectively, integral with the flap, and a pivoting shaft integral with the frame, or the flap, to guide in rotation the movable split-hinge part relative to the stationary split-hinge part around the pivoting shaft, by insertion of roller bearing elements that can allow an angular lack of coaxiality on the stationary split-hinge part relative to the movable split-hinge part of each so-called lower split-hinge and/or upper split-hinge.

Claims

1. Oscillating-mount split-hinge device that is designed to be fitted on a very heavy door (1) that consists of at least one flap or panel (2) that is mounted to pivot on a frame (3), comprising at least one lower split-hinge (4) that is designed in particular to support at least the bulk of the load of the flap (2) of said door (1) and at least one upper split-hinge (5) that is designed in particular to form an anti-tilting holding point and axial guide of said flap (2), whereby each so-called lower split-hinge (4), or upper split-hinge (5), on the one hand, consists of a stationary split-hinge part (6), or (7), that is integral with the frame (3), or a movable split-hinge part (8), or (9), that is integral with the flap (2), and, on the other hand, comprising a pivoting shaft (10), or (11), that is integral with said frame (3), or, if necessary, flap (2), making it possible to guide in rotation the movable split-hinge part (8), or (9), relative to the stationary split-hinge part (6), or (7), around said pivoting shaft (10), or (11), and this is done by insertion of roller bearing means (12, 13, 14);

device characterized in that;

The guiding in rotation of the movable split-hinge part (8) relative to the stationary split-hinge part (6) around the pivoting shaft (10) of each lower split-hinge (4) is done by insertion of an axial superposition of at least one ball roller bearing (12) that is designed to support primarily radial loads and at least one ball stop (14) designed to support primarily axial loads, whereby said roller bearing means (12) and (14) are able to allow an angular lack of coaxiality (a) on the part of the stationary split-hinge part (6) relative to the movable split-hinge part (8) of each so-called lower split-hinge (4), and

The guiding in rotation of the movable split-hinge part (9) relative to the stationary split-hinge part (7) around the pivoting shaft (11) of each upper split-hinge (5) is done by insertion of a superposition of at least one ball roller bearing (13) that is designed to support primarily the radial loads and is able to allow an angular lack of coaxiality of the stationary split-hinge part (7) relative to the movable split-hinge part (9) of each so-called upper split-hinge (5).

2. Device, according to claim 1, wherein each lower split-hinge (4) comprises a ball roller bearing (12) and a ball stop (14), whose application point (A) of the resultant of the contact actions of the roller bearing elements (15) of said ball stop (14) is eccentric relative to its median plane, and wherein said ball stop (14) is combined, in a mated way, with said ball roller bearing (12) in such a way that said application point (A) corresponds essentially to the pivoting center of said ball roller bearing (12), whereby the axial spacing between the latter and said ball stop (14) is preferably adjusted by means of an adjustment brace (14′

) through which the lower pivoting shaft (10) passes axially and is inserted between said ball stop (14) and said ball roller bearing (12).

3. Device, according to claim 2, wherein the movable split-hinge part (8), or (9), of each lower split-hinge (4), or upper split-hinge (5), is attached to the flap (2) and comprises a hub (8′

), or (9′

), designed to accommodate the corresponding pivoting shaft (10), or (11), while the stationary split-hinge part (6), or (7), of each lower split-hinge (4), or upper split-hinge (5), has a hinge shape that carries said pivoting shaft (10), or (11), and wherein;

The pivoting shaft (10) of each lower split-hinge (4) is mounted to rotate freely in the corresponding lower hub (8′

) by successively passing through, from the base of said lower hub (8′

), the ball roller bearing (12), the adjustment brace (14′

), the ball stop (14), and a plain bearing (16) forming a pivot connection and preserving play (16′

) between the corresponding pivoting shaft (10) and the inside sliding surface of said plain bearing (16), making possible the angular offset (a) of said pivoting shaft (10) within the angular limits imposed by said ball roller bearing (12) and said ball stop (14) associated with the latter, and more particularly within angular limits encompassed between approximately 1 and 2 degrees, and more preferably between 1.2 and 1.3 degrees, and

Each upper split-hinge (5) comprises a ball roller bearing (13), and the pivoting shaft (11) of each so-called upper split-hinge (5) is mounted to rotate freely in the corresponding hub (9′

) by passing successively, from the base of said upper hub (9′

), through the ball roller bearing (13) and a plain bearing (17) that forms a pivot connection that preserves play (17′

), making possible the offsetting of said upper pivoting shaft (11) within angular limits imposed by said ball roller bearing (13), and more particularly within the angular limits encompassed between approximately 1 and 2 degrees, and more preferably between 1.2 and 1.3 degrees.

4. Device, according to claim 3, wherein the stationary split-hinge part (6), or (7), of each lower split-hinge (4), or upper split-hinge (5), consists of a hollow piece in the form of an eyelet attached to the frame (3) and comprising a corresponding receiving cavity (18), or (19), with an axis that is essentially combined with the axis of rotation of the flap (2) and wherein the pivoting shaft (10), or (11), of each so-called lower split-hinge (4), or upper split-hinge (5), is engaged, on the one hand, by its low part, in said corresponding receiving cavity (18), or (19), in which it is held and centered axially essentially on said axis of rotation in an essentially vertical position, with axial and anti-rotational locking, by means of a casing connection between said pivoting shaft (10), or (11), and the receiving cavity (18), or (19), and, on the other hand, by its top part, in the corresponding hub (8′

), or (9′

), of the movable split-hinge part (8), or (9), of each so-called lower split-hinge (4) or upper split-hinge (5).

5. Device, according to claim 4, wherein the pivoting shaft (10), or (11), ends at its lower end, which extends downward beyond the receiving cavity (18), or (19), by an end fitting (10′

), or (11′

), preferably threaded, and wherein the casing connection consists of, on the one hand, a first shoulder (20), or (21), made in said pivoting shaft (10), or (11), that mates with a second shoulder (20′

), or (21′

), made in the inside wall of the receiving cavity (18), or (19), so as to prevent the axial movement of the pivoting shaft (10), or (11), downward, and, on the other hand, a stop washer (20″

), or (21″

), placed around said end fitting and being held, with locking, in a stop position by means of, for example, a nut (20′

″

), or (21′

″

), screwed onto the threaded part of said end fitting (10′

), or (11′

), so as to prevent the axial movement of said pivoting shaft (10), or (11), upward.

6. Device, according to claim 3, wherein the ball roller bearing (13) of each upper split-hinge (5), or the ball roller bearing (12) and ball stop (14) system of each lower split-hinge (4), is locked axially in the corresponding hub (8′

), or (9′

), of the corresponding movable split-hinge part (8), or (9), between, on the one hand, a shoulder (10″

), or (11″

), made in the outside surface of the pivoting shaft (10), or (11), by means of an annular sealing joint (22), or (22′

), and, on the other hand, the corresponding plain bearing (16), or (17).

7. Device, according to claim 6, wherein each upper split-hinge (5) also comprises an intermediate piece (24) in the form of a sleeve through which the pivoting shaft (11), corresponding to the level of the plain bearing (17), passes, while the base of said intermediate piece (24) is enlarged by extending radially to cover tightly, for example by means of an annular joint (23), the cage (13′

) of the ball roller bearing (13).

8. Device,

according to claim 1, wherein the ball roller bearing(s) (12, 13) is/are ball roller bearings on rollers, preferably conical rollers, on balls or on needles, and preferably ball roller bearings on rollers with two rows of conical rollers and wherein the ball stop(s) (14) is/are ball stops on rollers.

9. Device, according to claim 3, wherein the pivoting of the flap (2) of the very heavy door for its opening or closing is done by means of a power unit (25), preferably with limited power, comprising a motor (25′

) that is designed to drive a drive shaft (26) that is integral with said flap (2) and preferably the movable split-hinge part (8) of each lower split-hinge (4).

10. Device, according to claim 9, wherein the movable split-hinge part (8), or (9), of each lower split-hinge (4), or upper split-hinge (5), consists of a support plate (8″

), or (9″

), designed to be attached to the flap (2) and extending by an arm (8′

″

) that carries the corresponding hub (8′

) or (9′

), and wherein said arm (8′

″

) extends by moving away from the plane of the flap (2) so as to create a space or sufficient disengagement from said flap (2) to house and implement the power unit (25), preferably at each lower split-hinge (4), whereby the drive shaft (26) of the flap (2) constitutes an axial extension upward of the hub (8′

) of the corresponding movable split-hinge part (8) of each so-called lower split-hinge (4).

11. Device, according to claim 10, wherein said drive shaft (26) consists of a hood (27) with an overall cylindrical shape that can cover, with its enlarged base, the upper surface of the corresponding hub (8′

) of the movable split-hinge part (8) of the lower split-hinge (4), on which upper surface said hood (27) is preferably attached by screwing and extends axially on its upper part by a drive shaft (28) that comprises—

on its outside surface—

at least one connection key (29), making it possible to link in rotation said drive shaft (28) with the drive means of said motor (25′

).

12. Very heavy door (1) that consists of at least one flap (2) that is mounted to pivot on a frame (3) and that more particularly allows access to a closed space in a hostile environment such as a nuclear power plant, wherein it is equipped with a split-hinge device according to claim 1, preferably comprising a lower split-hinge (4) and an upper split-hinge (5).

13. Device, according to claim 1, wherein the pivoting of the flap (2) of the very heavy door for its opening or closing is done by means of a power unit (25), preferably with limited power, comprising a motor (25′

) that is designed to drive a drive shaft (26) that is integral with said flap (2) and preferably the movable split-hinge part (8) of each lower split-hinge (4).