US2505416A - Safety stop for awnings - Google Patents

Safety stop for awnings Download PDF

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Publication number
US2505416A
US2505416A US692805A US69280546A US2505416A US 2505416 A US2505416 A US 2505416A US 692805 A US692805 A US 692805A US 69280546 A US69280546 A US 69280546A US 2505416 A US2505416 A US 2505416A
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United States
Prior art keywords
shaft
sleeve
awnings
awning
safety stop
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Expired - Lifetime
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US692805A
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Mahaffey Eugene
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Individual
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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
    • E04F10/0611—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 with articulated arms supporting the movable end of the blind for deployment of the blind
    • E04F10/0614—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 with articulated arms supporting the movable end of the blind for deployment of the blind whereby the pivot axis of the articulation is parallel to the roller
    • 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
    • E04F10/0644—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 with mechanisms for unrolling or balancing the blind
    • E04F10/0648—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 with mechanisms for unrolling or balancing the blind acting on the roller tube
    • 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
    • E04F10/0644—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 with mechanisms for unrolling or balancing the blind
    • E04F10/0651—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 with mechanisms for unrolling or balancing the blind acting on the arms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut
    • Y10T74/18688—Limit stop
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut
    • Y10T74/18752—Manually driven

Definitions

  • .Myiinvention relates toudi'provements.inisafety the operating mechanism for the .raisirig and lowering roller of awnings, and "which "is adapted to prevent lowering of the awning sheet past a predetermined position beyond which damage might result to the awning structure and an unsightly appearance be presented by the awning, and whereby the stop is protected against damage from rain, dust, and the like.
  • Another object is to provide a device of the character and for the purpose set forth which is adapted to be incorporated in present-day awning structures without necessitating appreciable alteration in such structures, is inexpensive to manufacture, and not liable to get out of order.
  • Figure 1 is a view in side elevation illustrating my improved safety lock applied.
  • Figure 2 is a View partly in front elevation and partly in longitudinal section of the safety lock detached and drawn to a larger scale.
  • Figure 3 is a view in transverse section taken on the line 3-3 of Figure 2.
  • my improved safety stop has been shown therein, for illustrative purposes, as embodied in a wellknown type of awning in which the sheet i is adapted to be wound upon and unwound from a, roller shown in dotted lines at 2 with end studs, as at 3, journaled in bearing brackets, as at 4, fixed to the building wall 5 by upper and lower bolts 6, i.
  • the bearing bracket 4 as shown has the form of a gear casing housing a worm gear drive, not shown, for the stud 3 journaled in the bracket.
  • a, worm drive is shown in U. s. patent to E. F. Barber, No. 1,688,776, dated ctober 23, 1948, to which attention is invited.
  • the sheet i is connected at its lower edge to the usual awning frame 8 having rear ends pivoted, as at 9, for vertical swinging of said frame on sleeves, as at iii, vertically slidable upon guide rods, one of which is shown at H, bolted, as at 2, to the wall 5.
  • the numeral l2 designates the usual frame hold-down rod i3 pivoted, as at M, on the wall and pivotally and slidably connected, as at Hi, to the awning frame 8, in a manner and for a purpose which will be understood.
  • an upper end lip H is provided on one side thereof with bolt holes l8 therein for receiving the lower bolts i, whereby said lip I1 is clamped to said.
  • a threaded shaft I 9 extends through the guide sleeve 95 with an enlarged upper end head 20 adapted to substantially close the upper end of said sleeve, and from which a short, tubular socket 2! extends upwardly concentrically of said shaft and is provided with diametrically opposite bolt holes 22 therein.
  • is sleeved over a stub shaft 23 depending from the bearing bracket t and operatively connected to the worm drive, not shown, in said bracket, for instance, as shown in the beforementioned patent to Barber.
  • a bolt 24 passing through the bolt holes 22 and said stub shaft 23 secures the shaft iii to the stub shaft 23 in pendant position.
  • the shaft is is provided with a lower, reduced and scuared end 25 having a transverse bolt hole 25 therein.
  • a hook 2 1 with a socket end 28 sleeved over said end 25 is secured to the shaft l9 by a bolt 28 passing through said socket end 25 and the bolt hole 26.
  • the hook 21 is designed for the coupling thereto of the usual awning operating crank shown in dotted lines at 29.
  • a square nut 39 is provided on the shaft l9 and which slidably fits in said sleeve Is.
  • the nut 30 is designed to be fed upwardly on the screw-shaft IS in the guide sleeve 16 when said shaft is rotated in the proper direction to cause the roller 2 to unwind the sheet and thus lower the awning, and when said sheet l is unwound to the proper extent, to abut the head 2! and stop further operation of said shaft is in the direction resulting in unwinding of said sheet I.
  • unwinding of the sheet is limited in the properlv lowered position of the same.
  • a device of the class described for attachment to a stub shaft depending from a fixed housing of an awning roller drive comprising a sleeve of right-angled form in cross-section attachable at one end to said housing to depend therefrom, a screw-shaft extending through said sleeve and having an enlarged upper end head attachableto said stub shaft and a lower hooked end attachable to a crank, and a square nut on said screw-shaft slidably fitting in said sleeve and feedable upwardly and downwardly on the screw-shaft upon rotation of said screw-shaft and movable into engagement with said head.
  • a device of the class described for attachment to a stub shaft depending from a fixed housing of an awning roller drive said device com prising a sleeve of right-angled form in crosssection, means for attaching said sleeve at one end to said housing to depend therefrom, a screwshaft extending through said sleeve and having an enlarged upper end head, means for attaching said head to said stub shaft, a lower hooked end on said shaft attachable to a crank, and a square nut on said screw-shaft slidably fitting in said sleeve and feedable upwardly and downwardly on the screw-shaft upon rotation of said screw-shaft and movable into engagement with said head, said screw-shaft and nut being removable out of said sleeve for pre-setting of said nut into different starting positions thereon.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Awnings And Sunshades (AREA)

Description

April 25, 1950 E. MAHAFFEY SAFETY STOP FOR AWNINGS Filed Aug. 24, 1946 I11 rel/tor Ewe/2e Mafia 15423.
@6 61. B y W Patented Apr. 25;, 1955 UNI TED STATES PAT- OFF ICE SAFETY STOP FOR AWNINGS Eugene Mahafley, Memphis, Tenn. iApliiialfidn August 24, 1948, Serial 'No.-.-69-28l)'5 (ClQiGll -lifi) 2 Claims. 1
.Myiinvention relates toirii'provements.inisafety the operating mechanism for the .raisirig and lowering roller of awnings, and "which "is adapted to prevent lowering of the awning sheet past a predetermined position beyond which damage might result to the awning structure and an unsightly appearance be presented by the awning, and whereby the stop is protected against damage from rain, dust, and the like.
Another object is to provide a device of the character and for the purpose set forth which is adapted to be incorporated in present-day awning structures without necessitating appreciable alteration in such structures, is inexpensive to manufacture, and not liable to get out of order.
To the accomplishment of the above, and subordinate objects presently appearing, a preferred embodiment of my invention has been illustrate in the accompanying drawing, set forth in detail in the succeeding description, and defined in the claims appended hereto.
In said drawings- Figure 1 is a view in side elevation illustrating my improved safety lock applied.
Figure 2 is a View partly in front elevation and partly in longitudinal section of the safety lock detached and drawn to a larger scale.
Figure 3 is a view in transverse section taken on the line 3-3 of Figure 2.
Referring to the drawing by numerals, my improved safety stop has been shown therein, for illustrative purposes, as embodied in a wellknown type of awning in which the sheet i is adapted to be wound upon and unwound from a, roller shown in dotted lines at 2 with end studs, as at 3, journaled in bearing brackets, as at 4, fixed to the building wall 5 by upper and lower bolts 6, i. The bearing bracket 4 as shown has the form of a gear casing housing a worm gear drive, not shown, for the stud 3 journaled in the bracket. Such a, worm drive is shown in U. s. patent to E. F. Barber, No. 1,688,776, dated ctober 23, 1948, to which attention is invited. The sheet i is connected at its lower edge to the usual awning frame 8 having rear ends pivoted, as at 9, for vertical swinging of said frame on sleeves, as at iii, vertically slidable upon guide rods, one of which is shown at H, bolted, as at 2, to the wall 5. The numeral l2 designates the usual frame hold-down rod i3 pivoted, as at M, on the wall and pivotally and slidably connected, as at Hi, to the awning frame 8, in a manner and for a purpose which will be understood.
position and fdirectly beneath said bearing bracket. For suspefidingthe'guiae sleeve "it, "an upper end lip H is provided on one side thereof with bolt holes l8 therein for receiving the lower bolts i, whereby said lip I1 is clamped to said.
bearing bracket.
A threaded shaft I 9 extends through the guide sleeve 95 with an enlarged upper end head 20 adapted to substantially close the upper end of said sleeve, and from which a short, tubular socket 2! extends upwardly concentrically of said shaft and is provided with diametrically opposite bolt holes 22 therein. The socket 2| is sleeved over a stub shaft 23 depending from the bearing bracket t and operatively connected to the worm drive, not shown, in said bracket, for instance, as shown in the beforementioned patent to Barber. A bolt 24 passing through the bolt holes 22 and said stub shaft 23 secures the shaft iii to the stub shaft 23 in pendant position. The shaft is is provided with a lower, reduced and scuared end 25 having a transverse bolt hole 25 therein. A hook 2 1 with a socket end 28 sleeved over said end 25 is secured to the shaft l9 by a bolt 28 passing through said socket end 25 and the bolt hole 26. The hook 21 is designed for the coupling thereto of the usual awning operating crank shown in dotted lines at 29. A square nut 39 is provided on the shaft l9 and which slidably fits in said sleeve Is.
As will be manifest, the nut 30 is designed to be fed upwardly on the screw-shaft IS in the guide sleeve 16 when said shaft is rotated in the proper direction to cause the roller 2 to unwind the sheet and thus lower the awning, and when said sheet l is unwound to the proper extent, to abut the head 2! and stop further operation of said shaft is in the direction resulting in unwinding of said sheet I. Thus, unwinding of the sheet is limited in the properlv lowered position of the same. By disconnecting the socket 2! from the stub shaft 23, and lowering said shaft l9 in impart a clear understanding of my invention, without further explanation.
Manifestly, the invention, as described, is susceptible of modification without departing from the inventive concept, and right is herein reserved to such modifications as fall within the scope of the appended claims.
What I claim is:
1. A device of the class described for attachment to a stub shaft depending from a fixed housing of an awning roller drive, said device comprising a sleeve of right-angled form in cross-section attachable at one end to said housing to depend therefrom, a screw-shaft extending through said sleeve and having an enlarged upper end head attachableto said stub shaft and a lower hooked end attachable to a crank, and a square nut on said screw-shaft slidably fitting in said sleeve and feedable upwardly and downwardly on the screw-shaft upon rotation of said screw-shaft and movable into engagement with said head.
2. A device of the class described for attachment to a stub shaft depending from a fixed housing of an awning roller drive, said device com prising a sleeve of right-angled form in crosssection, means for attaching said sleeve at one end to said housing to depend therefrom, a screwshaft extending through said sleeve and having an enlarged upper end head, means for attaching said head to said stub shaft, a lower hooked end on said shaft attachable to a crank, and a square nut on said screw-shaft slidably fitting in said sleeve and feedable upwardly and downwardly on the screw-shaft upon rotation of said screw-shaft and movable into engagement with said head, said screw-shaft and nut being removable out of said sleeve for pre-setting of said nut into different starting positions thereon.
EUGENE MAHAFFEY.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 350,656 Brooks Oct. 12, 1836 1,187,077 MacCune June 13, 1916 1,630,770 Smith May 31, 1927 1,688,776 Barber Oct. 23, 1923
US692805A 1946-08-24 1946-08-24 Safety stop for awnings Expired - Lifetime US2505416A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0518114A1 (en) * 1991-06-11 1992-12-16 Bauer Spezialtiefbau GmbH Device for releasably connecting a drill pipe to a rotary drive
US5921305A (en) * 1995-09-28 1999-07-13 Gerhard Geiger Gmbh & Co. Extension limiter for awnings
US20070193700A1 (en) * 2005-08-26 2007-08-23 Dometic Corporation Awning assemblies
US20110198041A1 (en) * 2010-02-12 2011-08-18 Svirsky Alexander R Rigid Retractable Patio or Window Awning and Operating Mechanisms Therefor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US350656A (en) * 1886-10-12 Spring-roller
US1187077A (en) * 1915-10-18 1916-06-13 John G Maccune Window-shade stop.
US1630770A (en) * 1924-03-03 1927-05-31 Smith Henry Control for curtain and awning rollers
US1688776A (en) * 1925-10-23 1928-10-23 Earl F Barber Awning

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US350656A (en) * 1886-10-12 Spring-roller
US1187077A (en) * 1915-10-18 1916-06-13 John G Maccune Window-shade stop.
US1630770A (en) * 1924-03-03 1927-05-31 Smith Henry Control for curtain and awning rollers
US1688776A (en) * 1925-10-23 1928-10-23 Earl F Barber Awning

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0518114A1 (en) * 1991-06-11 1992-12-16 Bauer Spezialtiefbau GmbH Device for releasably connecting a drill pipe to a rotary drive
US5921305A (en) * 1995-09-28 1999-07-13 Gerhard Geiger Gmbh & Co. Extension limiter for awnings
US20070193700A1 (en) * 2005-08-26 2007-08-23 Dometic Corporation Awning assemblies
US8316910B2 (en) * 2005-08-26 2012-11-27 Dometic Llc Awning assemblies
US20110198041A1 (en) * 2010-02-12 2011-08-18 Svirsky Alexander R Rigid Retractable Patio or Window Awning and Operating Mechanisms Therefor
US8347935B2 (en) * 2010-02-12 2013-01-08 Alexander Svirsky Rigid retractable patio or window awning and operating mechanisms therefor

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