Classifications

• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
  • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
  • E06B9/40—Roller blinds
  • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
  • E06B9/50—Bearings specially adapted therefor

Definitions

• the present invention relates to a roller shade comprising firstly a roller for rolling up and out a shade body and secondly support brackets arranged to carry the roller between them, the roller and the brackets having cooperating openings and pins extending into said opening for rotatable mounting of the roller between the brackets.
• roller shade comprises a roller, having a gudgeon or round pin fixed at one end and at its other end a built-in spring and ratchet mechanism, having a spear or flat pin rotatable relative to the roller.
• the brackets are often L-shaped sheet metal brackets, one of which has a circular opening for rotatable mounting of the gudgeon or round pin, while the other has a rectangular opening for non-rotatably fixing the spear or flat pin.
• a roller shade of another type is previously known by Swedish lay-open print 455 803 for example. It differs primarily from the type described above in that it has no spring and bracket mechanism. The rolling up and down of the shade is accomplished in this case with the aid of a sprocket wheel and a chain engaging thereinto.
• the support brackets or holders at both ends of the roller are identical and that the operating device is connected to the roller by means of a detachable coupling, so that the operating device can be mounted by installation at that end of the roller which is most suitable, without any special adjustment.
• the bracket or holder consists of a housing closed on one side by a cover or hood, said housing having on its side opposite the hood a tubular pin on which the roller is rotatably mounted.
• One of the holders surrounds the major portion of the sprocket wheel which, via the detachable coupling, is drivably connected to the roller and can be shifted from one end to the other of the roller as needed, by removing the cover and taking the chain off the sprocket wheel, whereafter the sprocket wheel is removed from the roller by pulling it out of one holder and connecting it to the other end of the roller by insertion into the other holder.
• the covers are put on the respective holder.
• This known shade provides good flexibility in mounting, which is relatively simple to perform. By virtue of the fact that the holders are identical, the production cost can be kept low.
• the purpose of the present invention is to achieve a roller shade of the type described by way of introduction, which has a support arrangement, which can be easily adapted to either of the two roller shade types described above and which, in addition, is even simpler to mount in place and adapt to right or left hand placement of the sprocket wheel and chain.
• each bracket comprises, firstly, a holder portion designed to be affixed to a surface at the mount ⁇ ing site for the roller shade and, secondly, a slide, in that the roller is rotatably carried by the slide and in that one of the slide and the holder portion has an under ⁇ cut groove and the other has a slide surface with a profile adapted to the cross- sectional profile of the groove to be insertable and fixable in the groove.
• a number of advantages are attained.
• a single type of holder portion can be used for both of the above described roller shade types.
• the holder portions on the right and left hand side of the roller can also be identical to each other.
• the roller must be supported on the pin, when the other bracket is screwed into the wall, which makes mounting much more complicated than is the case when both holder portions are first screwed securely to the wall, whereafter the slides with the pins inserted in the roller can be inserted into the holder portions.
• FIG. 1 shows a perspective view of a portion of one embodiment of a roller shade according to the invention
• Fig. 2 is a front view of the holder portion of the support bracket
• Fig. 3 is a section along the line III-III in Fig. 2
• Fig. 4 is a front view of the slide of the support bracket
• Fig. 5 is a section along the line V-V in Fig. 4
• Fig. 6 is a front view of a central portion of a second embodiment of a slide
• Fig. 7 is a view corresponding to Fig. 6 of a third embodiment.
• the reference numeral 1 designates a wall portion or a window frame, to which a pair of brackets (only one shown), generally designated 2, are screwed securely at a distance from each other.
• the brackets 2 carry between them a rotata ⁇ bly mounted shade roller 3, to which is fixed one edge of a shade 4 of cloth or plastics for example.
• a sprocket wheel 5 is fixed, said sprocket wheel engaging a ball chain 6.
• the cover or hood 7 non-rotatably fixed by the bracket 2 covers approximately half of the sprocket wheel 5 and prevents the chain 6 from jumping out of engagement with the sprocket wheel 5.
• the roller 3 has openings (not shown), and brackets 2 of the type shown in Figs. 2-5 are used, including a pin 8 which extends into the opening in the roller for rotatable mounting thereof.
• the bracket 2 comprises an L-shaped holder portion 10 (Figs. 2 and 3) with screw holes 11 for fastening screws in the short leg 12 and a central groove 13 in the long leg 14.
• the groove 13 extends from the distal end of the leg 14 to the leg 12 and has a reversed T-profile, i.e. the groove 13 is undercut. At the distal end of the groove 13 there is a snap lock tooth 15 with a lock surface 16.
• the bracket 2 comprises a slide 17, which has a slide surface 17a with a profile corresponding to the profile of the groove 13. Slightly above the middle, the slide 17 has a mounting pin 8 (Figs. 4 and 5), which, in the embodiment shown, has the shape of a cross with circular arcuate surfaces 18.
• the cover or hood 7 has a corresponding surface opening (not shown), so that the hood 7 in the mounted state shown in Fig. 1, is fixed against rotation by the pin 8.
• the slide 17 is made of a resilient plastics material.
• an upper and a lower tongue 19 and 20, respectively, are stamped out, and are thus resilient.
• FIG. 6 and 7 show the central portion of two slides 31 and 32 in a modified embodiment for supporting a roller shade (not shown) of the more common type, in which the roller at one end has a round pin and at the other end a built-in spring and ratchet mechanism with a rectangular spindle pin.
• the pin 8 on the slide 17 has been replaced in the slide 31 with a circular opening 33 for rotatably mounting the round pin of the roller and in the slide 32 by a cross-shaped opening 34 for non- rotatably fixing the spindle pin.
• the same handle portion 10 can thus be used for both the roller shade as shown in Fig. 1 and the more common type which is not shown here.
• the invention has been described above with reference to an embodiment, in which the holder portion 10 has the groove 13 and the slide 17 has the slide surface 17a adapted to the groove, but it is of course possible if desired to arrange the groove in the slide, and provide the holder portion with a slide surface adapted to the groove.

Landscapes

• Engineering & Computer Science (AREA)
• Structural Engineering (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
• Blinds (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=20395075

Family Applications (1)

Country Status (4)

Families Citing this family (5)

Family Cites Families (6)

• 1994
  • 1994-08-31 SE SE9402895A patent/SE504777C2/sv not_active IP Right Cessation
• 1995
  • 1995-08-30 WO PCT/SE1995/000977 patent/WO1996007007A1/en not_active Application Discontinuation
  • 1995-08-30 AU AU34031/95A patent/AU3403195A/en not_active Abandoned
  • 1995-08-30 EP EP95930774A patent/EP0777807A1/en not_active Withdrawn

Non-Patent Citations (1)

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