EP1564363A1 - Shaft for awning with a space for the hem - Google Patents

Shaft for awning with a space for the hem Download PDF

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Publication number
EP1564363A1
EP1564363A1 EP04003459A EP04003459A EP1564363A1 EP 1564363 A1 EP1564363 A1 EP 1564363A1 EP 04003459 A EP04003459 A EP 04003459A EP 04003459 A EP04003459 A EP 04003459A EP 1564363 A1 EP1564363 A1 EP 1564363A1
Authority
EP
European Patent Office
Prior art keywords
shaft
site
fabric
section
awning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04003459A
Other languages
German (de)
French (fr)
Inventor
Edy Barbieri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAT ACCESSORI Srl
Original Assignee
BAT ACCESSORI Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BAT ACCESSORI Srl filed Critical BAT ACCESSORI Srl
Priority to EP04003459A priority Critical patent/EP1564363A1/en
Publication of EP1564363A1 publication Critical patent/EP1564363A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
    • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
    • E04F10/0633—Arrangements for fastening the flexible canopy material to the supporting structure
    • 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
    • E06B9/44—Rollers therefor; Fastening roller blinds to rollers
    • E06B9/46—Rollers therefor; Fastening roller blinds to rollers by clamping bars

Definitions

  • This patent refers to the field of cassetted retractable arms awnings, and it particularly concerns the shaft around which the piece of fabric is wound up.
  • the known shafts for the winding of the fabric consist of zinc plated steel tubes with a circular section and a concave site fit for containing the buttonholed end of the sheet, and the tube for the attachment and the blocking of the sheet inserted in it.
  • Said fabric includes, at one end, a buttonhole along its entire width, and, inside it, the tube for the attachment of the fabric.
  • Said tube, and the buttonhole around it, are firmly inserted in the concave site of the shaft.
  • the shaft and the fabric are inserted in a box with circular internal section, and internal diameter slightly bigger than the sum of the external diameter of the shaft and the double thickness of the complete winding of the fabric.
  • the presence of the buttonhole and its related seam produces a number of problems. Said seam, and its related cuff, produces an anomalous swelling on the external surface of the fabric winding, localized in correspondence of the seam itself. The dimension of the swelling increases at every winding turn, and for few metre long fabrics it is in the range of few millimetres.
  • a first problem that follows is the squashing of the fabric against the internal surface of the box, with the consequent need of a greater effort in the final part of the winding and in the initial part of the unwinding.
  • Another not less important problem is the possibility for the fabric to get damaged or dirty, with consequent serious aesthetic problems, starting from the first utilization period.
  • the new shaft makes it possible to eliminate the anomalous swelling due to the seam.
  • figure 0 shows the cross section of a shaft for awning, with its fabric (T) and box (C), used at present.
  • the shaft is made of a coil bent tube.
  • the section shows a concave site (A20), suitable for containing the tube for the attachment of the fabric.
  • Said site (A20) has a circular open section comprised between point (A2dx0) and point (A2sx0), which correspond to the ends of the circular section of the shaft (A0).
  • Said points are symmetrical about the shaft radius passing through the centre of the concave site (A20) and their distance is smaller than the external diameter of the tube (B).
  • Said tube is inside the buttonhole (Ta0) of the fabric (T), said buttonhole (Ta0) provided with a cuff in correspondence to the seam.
  • Said anomalous swelling causes the unwanted contact between the fabric and the internal wall of the box (C) itself.
  • the internal diameter of the box is slightly bigger than the sum of the external diameter of the shaft and the double thickness of the winding in normal position.
  • FIGS 1, 2, 3, 4 show the cross sections of the new shaft, the object of this invention.
  • Figure 1 shows the cross section of the new shaft (A), made of a bend coil bend tube (A1), of circumference (K), said shaft contains two concave sites, (A2) and (A3), focused in figure 2.
  • the site (A2) is fit for containing the tube (B) for the attachment of the fabric (T), and has a circular open section delimited by two points, (A2sx) and (A2dx). Said points are situated symmetrically about a line not passing through the centre of the shaft, and their distance is smaller than the external diameter of the tube (B) contained in said site.
  • the point (A2sx) is also an end point of the circular section of the shaft, while point (A2dx) is also an end point of the section of the site (A3).
  • Said site is fit for containing the cuff (Tr) in correspondence of the seam of the buttonhole of the fabric.
  • the section of the site (A3) is delimited by points (A2dx) and (A3dx), the latter being also an end point of the circular section of the shaft, together with point (A2sx).
  • points (A2sx) and (A3dx) belong to the circumference (K), while point (A2dx) is below it, i.e. it is closer to the axis of rotation of the shaft.
  • Figure 3 shows, in addiction to figure 1, the cross section of the fabric (T) entirely wound around the shaft (A). No swelling on the surface of the winding is evident, in fact by inserting the cuff (Tr) in the site (A3) it is possible to prevent the formation of the anomaly on the winding surface.
  • Figure 4 shows, in addiction to figure 3, the cross section of the box (C).
  • Said box being of the dimensions of the common boxes, with internal diameter slightly bigger than the sum of the external diameter of the shaft (A) and the double thickness of the total winding of the fabric.
  • a box with normal dimensions is fit for containing the shaft (A) and the fabric (T) comfortably, without provoking any contact between the fabric and the box, with the consequent problems that would follow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Abstract

The invention is a shaft for an awning with a circular section that avoids the formation of a swelling (Ts) of the fabric (T). Said shaft contains, besides the known concave fitting location for receiving and keeping the end of a folded and sewed fabric (T), a further fitting location (A3) suitable for receiving and keeping the hem (Tr) and the seam of the fabric (T). Fitting location (A3,A2) have a common point that is below the circumference (K) defining the section of the shaft (A).

Description

  • This patent refers to the field of cassetted retractable arms awnings, and it particularly concerns the shaft around which the piece of fabric is wound up.
  • At present the known shafts for the winding of the fabric consist of zinc plated steel tubes with a circular section and a concave site fit for containing the buttonholed end of the sheet, and the tube for the attachment and the blocking of the sheet inserted in it. Said fabric includes, at one end, a buttonhole along its entire width, and, inside it, the tube for the attachment of the fabric. Said tube, and the buttonhole around it, are firmly inserted in the concave site of the shaft. The shaft and the fabric are inserted in a box with circular internal section, and internal diameter slightly bigger than the sum of the external diameter of the shaft and the double thickness of the complete winding of the fabric.
  • The known shafts for the winding of the fabric, even accomplishing their tasks, cause some problems as well.
  • The presence of the buttonhole and its related seam produces a number of problems. Said seam, and its related cuff, produces an anomalous swelling on the external surface of the fabric winding, localized in correspondence of the seam itself. The dimension of the swelling increases at every winding turn, and for few metre long fabrics it is in the range of few millimetres.
  • A first problem that follows is the squashing of the fabric against the internal surface of the box, with the consequent need of a greater effort in the final part of the winding and in the initial part of the unwinding. Another not less important problem, is the possibility for the fabric to get damaged or dirty, with consequent serious aesthetic problems, starting from the first utilization period.
  • An obvious solution to solve this problem is the construction of a box with a diameter larger than the sum of the external diameter of the shaft and the double thickness of the entire winding of the fabric, measured in the anomalous swelling position, due to the seam.
  • From this solution other problems arise: the construction of new and purposely made mould for the box, the use of a larger amount of material for the building of the box, economically disadvantageous, and a wider encumbrance of the box, with possible space problems.
  • To overcome the above-mentioned problems a new shaft has been studied and realized. The new shaft makes it possible to eliminate the anomalous swelling due to the seam.
  • The elimination of the swelling is obtained by a suitable modification of the shaft section. In details, next to the concave site of the shaft another site is built, in order to contain the cuff and the seam.
  • The characteristics of the new shaft are shown in the following description, referring to the attached figures as a non limitative example.
  • To make a comparison, figure 0 shows the cross section of a shaft for awning, with its fabric (T) and box (C), used at present.
  • The shaft is made of a coil bent tube. The section shows a concave site (A20), suitable for containing the tube for the attachment of the fabric. Said site (A20) has a circular open section comprised between point (A2dx0) and point (A2sx0), which correspond to the ends of the circular section of the shaft (A0). Said points are symmetrical about the shaft radius passing through the centre of the concave site (A20) and their distance is smaller than the external diameter of the tube (B). Said tube is inside the buttonhole (Ta0) of the fabric (T), said buttonhole (Ta0) provided with a cuff in correspondence to the seam.
  • Moreover, in figure 0 the fabric completely wound around the shaft is also shown. On the external surface of the winding there is an anomalous swelling (Ts0), in correspondence of the cuff (Tr) of the fabric (T).
  • Said anomalous swelling (Ts0) causes the unwanted contact between the fabric and the internal wall of the box (C) itself. The internal diameter of the box is slightly bigger than the sum of the external diameter of the shaft and the double thickness of the winding in normal position.
  • Figures 1, 2, 3, 4 show the cross sections of the new shaft, the object of this invention.
  • Figure 1 shows the cross section of the new shaft (A), made of a bend coil bend tube (A1), of circumference (K), said shaft contains two concave sites, (A2) and (A3), focused in figure 2. The site (A2) is fit for containing the tube (B) for the attachment of the fabric (T), and has a circular open section delimited by two points, (A2sx) and (A2dx). Said points are situated symmetrically about a line not passing through the centre of the shaft, and their distance is smaller than the external diameter of the tube (B) contained in said site. The point (A2sx) is also an end point of the circular section of the shaft, while point (A2dx) is also an end point of the section of the site (A3). Said site is fit for containing the cuff (Tr) in correspondence of the seam of the buttonhole of the fabric. The section of the site (A3) is delimited by points (A2dx) and (A3dx), the latter being also an end point of the circular section of the shaft, together with point (A2sx).
  • As it can be noticed in figure 2, points (A2sx) and (A3dx) belong to the circumference (K), while point (A2dx) is below it, i.e. it is closer to the axis of rotation of the shaft.
  • Figure 3 shows, in addiction to figure 1, the cross section of the fabric (T) entirely wound around the shaft (A). No swelling on the surface of the winding is evident, in fact by inserting the cuff (Tr) in the site (A3) it is possible to prevent the formation of the anomaly on the winding surface.
  • Figure 4 shows, in addiction to figure 3, the cross section of the box (C). Said box being of the dimensions of the common boxes, with internal diameter slightly bigger than the sum of the external diameter of the shaft (A) and the double thickness of the total winding of the fabric. In this case a box with normal dimensions is fit for containing the shaft (A) and the fabric (T) comfortably, without provoking any contact between the fabric and the box, with the consequent problems that would follow.
  • Therefore, with reference to the above description and to the attached figures the following claims are put forth.

Claims (4)

  1. Shaft for awning with circular section containing a concave site fit for receiving and keeping the tube (B) for the attachment of the end of a folded and sewed fabric, and where said tube (B) is inserted in a sewed buttonhole situated at the end of said fabric (T), characterized by having, next to said site (A2), a further site (A3) suitable for receiving and keeping the cuff (Tr) and the seam of the fabric (T).
  2. The shaft for awning, according to claim 1, wherein an end point of the section of site (A2) is also an end point of the section of site (A3) and where said end point (A2dx), common to site (A2) and (A3), is below the circumference (K) defining the section of the shaft (A).
  3. The shaft for awning according of claim 1,2 wherein the section of site A3 is comprised by point A2dx and point A3dx, the latter being an end point of the circular section of the shaft (A).
  4. The shaft for awning, according to claim 1,2,3, wherein site A2 comprises two points (A2sx) and (A2dx), both end points of the section of said site (A2), situated symmetrically about a line not passing through the centre of the shaft.
EP04003459A 2004-02-17 2004-02-17 Shaft for awning with a space for the hem Withdrawn EP1564363A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04003459A EP1564363A1 (en) 2004-02-17 2004-02-17 Shaft for awning with a space for the hem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04003459A EP1564363A1 (en) 2004-02-17 2004-02-17 Shaft for awning with a space for the hem

Publications (1)

Publication Number Publication Date
EP1564363A1 true EP1564363A1 (en) 2005-08-17

Family

ID=34684705

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04003459A Withdrawn EP1564363A1 (en) 2004-02-17 2004-02-17 Shaft for awning with a space for the hem

Country Status (1)

Country Link
EP (1) EP1564363A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1031433C2 (en) * 2006-03-23 2007-09-25 Aluminium Verkoop Zuid B V Roller screen, e.g. roller blind, has recess in outside of roll next to opening for receiving thickened bottom edge portion of screen web
EP3061888A1 (en) 2015-02-19 2016-08-31 F.I.TE.SOL. Srl Winding roller for a shading device or an awning

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191225099A (en) * 1912-11-01 1913-07-03 William Mclaren Improvements in Metallic Rollers for Window Blinds and the like.
FR1322975A (en) * 1962-02-22 1963-04-05 Anciens Etablissements Lacour Advanced roller for blinds
DE19716196C1 (en) * 1997-04-18 1998-10-15 Thomas Hinderer Roller blind winding system used in building

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191225099A (en) * 1912-11-01 1913-07-03 William Mclaren Improvements in Metallic Rollers for Window Blinds and the like.
FR1322975A (en) * 1962-02-22 1963-04-05 Anciens Etablissements Lacour Advanced roller for blinds
DE19716196C1 (en) * 1997-04-18 1998-10-15 Thomas Hinderer Roller blind winding system used in building

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1031433C2 (en) * 2006-03-23 2007-09-25 Aluminium Verkoop Zuid B V Roller screen, e.g. roller blind, has recess in outside of roll next to opening for receiving thickened bottom edge portion of screen web
EP3061888A1 (en) 2015-02-19 2016-08-31 F.I.TE.SOL. Srl Winding roller for a shading device or an awning

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