Classifications

• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
  • E05D15/00—Suspension arrangements for wings
  • E05D15/16—Suspension arrangements for wings for wings sliding vertically more or less in their own plane
  • E05D15/24—Suspension arrangements for wings for wings sliding vertically more or less in their own plane consisting of parts connected at their edges
  • E05D15/244—Upper part guiding means
  • E05D15/248—Upper part guiding means with lever arms for producing an additional movement
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2900/00—Application of doors, windows, wings or fittings thereof
  • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
  • E05Y2900/13—Type of wing
  • E05Y2900/132—Doors

Definitions

• the invention relates to a turning device for overhead sectional doors, which door comprises a plural- ity of adjacent horizontal interarticulated panels, rollers disposed at the outermost hinge points of the panels and in the vicinity of the lower and upper edges of the door, and intended to move along a rail on each side of the door, the uppermost rollers being fitted to the door by means of turning arms and each rail compris ⁇ ing a vertical portion attached to the vertical part of the door jamb, a horizontal portion substantially at the height of the upper edge of the door, and a bent portion connecting the vertical and horizontal portions. Doors of this kind are generally used as garage doors.
• the object of the present invention is to over- come the above disadvantage by means as simple and cheap as possible.
• a turning device which according to the invention is characterized in that the turning device arranged at least at one edge of the door comprises lever arm means attached to the door; means for positive control fixedly mounted on the door jamb or the rail and adapted to contact the lever arm means a ' predetermined length near the initial opening and final closing position of the door; and a drive arm disposed between the lever arm means and the arm of the uppermost roller, whereby when the door is opened the means for positive control turn the lever arm means which in turn, by means of the drive arm, force the uppermost roller and the uppermost panel closer to each other, thus forcing the uppermost panel to turn.
• the invention is based on positive control of the uppermost panel by means of the uppermost roller or rollers, for which power is supplied by the relative movement of the door and the door frame structure in the initial phase of the door lifting movement and the final phase of the door closing movement.
• the turning device forces the uppermost panel to turn as soon as the lifting movement starts, and to move along the same path but in the opposite direction when the door is closed.
• the main advantage of the invention is that the required extra height in the building becomes insigni ⁇ ficant, because the required extra height is very small compared with the prior art.
• the turning device can be in ⁇ cluded in the normal door delivery, if desired, or it can be installed later, also in existing sectional doors of the type described above. Most advantageously the turning device is arranged at both edges of the door and in such a way that the lever arm means are mounted in bearings in connection with the outermost hinge between the two uppermost panels and preferably coaxially with the roller located at that point.
• Figure 2 is a side elevation of a first pre ⁇ ferred turning device according to the invention
• Figure 3 shows the turning device of Figure 2 seen from the direction of the arrow A of Figure 2
• FIG. 4 shows the operation of the turning device according to Figures 2 and 3 in steps
• Figure 5 is a side elevation of a second pre- ferred turning device according to the invention.
• Figure 6 shows the turning device of Figure 5 seen from the direction of the arrow B of Figure 5,
• FIG 7 shows the operation of the turning device according to Figures 5 and 6 in steps.
• the overhead sectional door shown in Figure 1 comprises four adjacent horizontal panels 1 interarticu- lated by hinges 2a, 2b and 2c, and rollers 3 fitted to the outermost hinges 2c of the panels 1 in the vicinity of the upper and lower edges of the door in the same vertical planes as the rollers on the outermost hinges.
• the mounting of the uppermost rollers 3 differs from the mounting of the other rollers 3 in that they are attach ⁇ ed to the uppermost panel 1 by means of turning arms 4 (see e.g. Figure 2).
• the rollers 3 are intended to move along a rail 5 on each side of the door.
• Both rails com ⁇ prise a vertical portion 5a attached to a vertical part 6 of the door jamb or the like, a horizontal portion 5b attached to the ceiling of the garage or the like sub ⁇ stantially at the height of the upper edge of the door, and a bent portion 5c connecting the vertical and hori ⁇ zontal portions 5a and 5b.
• FIGS 2 and 3 show in detail one preferred turning device according to the invention, which can be arranged on either side or both sides of the door shown in Figure 1.
• the turning device comprises lever arm means 7 mounted in bearings in connection with the out ⁇ ermost hinge 2c between the two uppermost panels 1, co ⁇ axially with the roller 3 located at that point; means for positive control 8 fixedly mounted in connection with the rail portion 5a and adapted to contact the lever arm means 7 a predetermined length near the ini ⁇ tial opening and final closing position of the door; and a drive arm 9 disposed between the lever arm means 7 and the arm 4 of the uppermost roller 3.
• the lever arm means 7 comprise a sprocket wheel 7a mounted in bearings coaxially with the uppermost roller and a lever arm 7b immovably mounted in connec ⁇ tion with the sprocket wheel, one end of the lever arm being articulated to the lower end of the drive arm 9.
• the means for positive control 8 comprise a vertical chain-like piece with horizontal spaced-apart studs 8a cooperating with the sprocket wheel 7a.
• the upper end of the drive arm 9 is in turn articulated to the arm 4 of the roller 3 by means of an auxiliary arm 4a fastened thereto.
• step a) the door is closed, the lever arm means 7 are in the lowermost position and the roller 3 is halfway on the bent portion 5c of the rail 5.
• step b) the door has been lifted approximately 20 mm, the sprocket wheel 7a of the lever arm means 7 has turned by the action of the means for positive control 8 ap ⁇ proximately to the midpoint of its path, the drive arm 9 has pushed the arm 4 midway between its extreme posi ⁇ tions, and the roller 3 is ascending from the bent por ⁇ tion 5c of the rail to the horizontal portion 5b, and the uppermost panel 1 has turned approximately 15°.
• step c) the door has been lifted approximately 40 mm, whereby the sprocket wheel 7a is becoming detached from connection with the means for positive control 8, the arm 4 has turned into its other extreme position and the roller 3 has reached the horizontal portion 5b of the rail, the uppermost panel 1 being thereafter free from the positive control of the turning device as the lift ⁇ ing movement is continued.
• the turning device guides the uppermost panel 1 down along the same path as described above, back into the position of step a).
• the second preferred embodiment of the turning device shown in Figures 5 and 6 differs from the device according to Figures 2 and 3 primarily in that the lever arm means 7' comprise a lever arm, one end of which is articulated to the lower end of the drive arm 9 and the other end cooperates with the means for positive control 8' which comprise a groove for positive control 8a' .
• the means for positive control 8 ' is formed of a cup-like piece open at the top and one side of said means is open, thus forming said groove for positive control 8a' .
• the auxiliary arm 4a' of the uppermost roller has also a slightly different shape from that shown in Figures 2 and 3.
• this second turning device is described step by step in Figure 7 a) to c). These steps correspond with the steps in Figure 4, except that in this case positive control of the lever arm means 7' is provided by the groove 8a' of the means for positive control 8' .
• the other end of the lever arm means 7' is detached from and connected to the means for positive control at the open upper end thereof.
• the lever arm means can be formed by means of a sprocket wheel only, and the means for positive control cooper ⁇ ating with the sprocket wheel can be formed as a ver ⁇ tical piece with toothing.
• the number of door panels and the other details can vary as well.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Power-Operated Mechanisms For Wings (AREA)
• Support Devices For Sliding Doors (AREA)
• Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
• Wing Frames And Configurations (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8536983

Family Applications (1)

Country Status (5)

Cited By (1)

Citations (3)

• 1993
  • 1993-01-27 FI FI930348A patent/FI91986C/fi not_active IP Right Cessation
• 1994
  • 1994-01-24 AU AU58859/94A patent/AU5885994A/en not_active Abandoned
  • 1994-01-24 DE DE69411710T patent/DE69411710D1/de not_active Expired - Lifetime
  • 1994-01-24 WO PCT/FI1994/000030 patent/WO1994017270A1/en active IP Right Grant
  • 1994-01-24 EP EP94905117A patent/EP0681637B1/de not_active Expired - Lifetime

Patent Citations (3)

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