CA1108934A - Window with internal retractable insulating blind - Google Patents
Window with internal retractable insulating blindInfo
- Publication number
- CA1108934A CA1108934A CA363,774A CA363774A CA1108934A CA 1108934 A CA1108934 A CA 1108934A CA 363774 A CA363774 A CA 363774A CA 1108934 A CA1108934 A CA 1108934A
- Authority
- CA
- Canada
- Prior art keywords
- window
- slats
- closures
- wall
- bottom wall
- 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.)
- Expired
Links
- 239000011521 glass Substances 0.000 claims abstract description 31
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 19
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 2
- 239000006261 foam material Substances 0.000 claims description 2
- 229920006327 polystyrene foam Polymers 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000002991 molded plastic Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 8
- 239000006260 foam Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 241000812633 Varicus Species 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003000 extruded plastic Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Wing Frames And Configurations (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A window comprising a frame defining a window opening. The opening is closed by two spaced apart glass pane closures. A space is provided between the pane closure and a displaceable thermal insulating member is secured to actuable support means whereby to displace the insulating member in the space between the glass pane closures. The thermal insulating member is formed by a plurality of elongated insulated slats interconnected adjacent one another in parallel relationship and dis-placeable in a common plane between the glass pane closures. Each one of the slats is formed by a hollow elongated tube member defining opposed elongated side walls and top and bottom walls. A thermal insulating material is disposed in the hollow tube member.
A window comprising a frame defining a window opening. The opening is closed by two spaced apart glass pane closures. A space is provided between the pane closure and a displaceable thermal insulating member is secured to actuable support means whereby to displace the insulating member in the space between the glass pane closures. The thermal insulating member is formed by a plurality of elongated insulated slats interconnected adjacent one another in parallel relationship and dis-placeable in a common plane between the glass pane closures. Each one of the slats is formed by a hollow elongated tube member defining opposed elongated side walls and top and bottom walls. A thermal insulating material is disposed in the hollow tube member.
Description
3~
BACKGROU~D OF INVENTION
(a) Field of the Invention The present invention relates to a window construction having a displaceable thermal insulating S sheet member displaceable in a space formed between two glass pane closures.
(b) Description of Prior Art It is desirable to provide a Layer of thermal insulation across a window pane to prevent ingress of cold air within an enclosure during cold winter months. It is known, for example, as described in UOS. Patent ~o. 4,057,936 issued on November 15, 1977 to provide window shutters secured to the outer periphery of a window frame and which may be placed to cover the glass pane portion of the window whereby to provide an insulating wall exteriorly of the window pane to insulate the window area. For this purpose, the panel sections of the shutters csmprise a foamed polymeric ; material therein~ These panel sections are also used to seal off the window area against sunlight. However, by having the panels secured on the outside of the window frame, the panels may only be placed in a close position by the exterior of the enclosure. A disadvantage of this is that in the cold winter months, it is desir- ;
able to have sunlight p~netrate the window area during -the daylight hours whereby to warm the inside of the -~ enclosure and to close off the window area in the night-time to provide an insulating layex. Therefore, it is necessary for a person to leave the interior of the enclosure every time the panels have to be closed or .~
.~. ~, v~
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opened and this is not convenient, particularly in geographical areas where there is no snowfall. Also, when the window ~rame is located in a hard-to-reach area, such as on a second s~orey of a dwelling, etc., the only manner in which the panels may be closed is through the window pane area and, therefore, such panels cannot be used with window frames having sealed glass panes but only with window frames having displaceable window panes whereby access to the exterior may be pro-vided through the window opening.
SUMMARY OF I~VE~TIO~
The present invention contemplates a novel - displaceable thermal insulating sheet member disposed in the space between spaced apart glass pane closures.
It is known to provide adjustable blinds in hermeti-cally sealed window casings in the space between opposed glass panes to obstruct sunlight. For example, this is disclosed in U.S. Patent No. 3,253,644 issued on May 31, 1966, U.S. Patent ~o. 3,702,040 issued on ~ovember 7, 1972 and many other such patents. However, all o-f the prior art known, relates to blinds disposed in such a fashion and it is a further feature of the present inven-tion to provide a displaceable thermal insulating sheet member which is displaceable within the space between opposed glass pane closures and which may also act as a blind closure in order to bloc~ off the sunlight when it is not desired~
Another feature of the pre~ent invention is to provide a thermal insulatiny sheet member which i5 formed ~rom a plurality of elongated slats which are connectible longitudinally to each other and each con-. .
taining a thermal insulating foam -therein.
Another feature of the present invention is to provide actuable support means in conjunction with a window frame whereby the thermal insulating sheet member may be displaced in the space between two - spaced apart glass pane closures whereby to block off the window area entirely or partially.
Another feature of the present invention is to provide a displaceable thernal insulating sheet m~mber which is displaceable in the opening between two ~paced apart glass pane closures, and wherein the glass pane closures each comprise at least two sliding glass panes whereby outside air may pass through the window opening and wherein the insulating sheet member is formed of a plurality of elongated slats which are connected longitudinally by a woven permeable fabric material, such as a screen material.
According to the above features, from a broad aspect, the present invention provides a window compris-; 20 ing a frame defining a window opening. The opening is closed by two spaced apart glass pane closures. A space is provided between the pane closure and a displaceable thermal insulating member is secured to actuable support means whereby to displace the insulating member in the space between the glass pane closures. The thermal insulating memher is formed by a plurality of elongated insulated slats interconnected adjacent one another in parallel xelationship and displaceable in a cornmon plane between the glass pane closures. Each one of the slats lS formed by a hollow elonyated tube member defining opposed elongated side walls and top and bottom walls.
A thermal insulating material is disposed in the hollow tube member.
BRIEF DESCRIPTION OF DRAWINGS
A preferred embodiment of the present invention will now be d~scribed with reference to the examples thereof illustrated by the accompanying drawings in which:
, . . .
- 4a -.~ ~
: ,. . . ., . .. . , . : `
3~
FIGURE 1 is a perspective view showiny the insulatable window construction of the present invention' FIGURES 2 to 5 are perspective fragmented section views showing examples of the construction of the slats forming the thermal insulating sheet member of the present invention, FIGURE 6 is a fragmented perspective view of a corner portion of the window frarne showing the passage of the insulating sheet member therethrough;
and FIGURE 7 is a fragmented cross-sectional side view ~howing another example of the construction of the thermal insulating sheet member of the present invention as used in a window frame having glass pane closures ~hich are displaceable in the frame.
DESCRIPTIO~ OF PREFERRED EMBODIME~TS
Referring now to the drawings, and more particularly to Figure 1, there is shown generally at 10, the insulatable window construction of the present invention~ The window comprises a rectangular frame 11 having a top wall 12, bottom wall 13, and side walls 14 (only one being shown herein). The window frame 11 defines a window op~ning, herein shown as being closed by two spaced apart glass panes 15 and 16 which are hermetically sealed on all side edges thereof to the frarne 11. However, as will later be described, the glass pane closures may be formed of at least two window panes secured for sliding displacement in the frame whereby to provide an opening through the window.
, ~ - . . . .
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As herein shown, a space 17 is defined between the two spaced apart glass pane closures 15 and 1~ and a displaceable thermal insulating sheet mem~er 18 is displaceable therein. The thermal insulating sheet member 18 is secured to an actuable support means 19 to displace the sheet member in the space 17 between the glass pane closuresO To this end, it is required that the top wall 12 be provided with a slotted opening 20 having sufficient length to permit passage of the insu-lating sheet member 18 therethrough.
The actuable support means is herein constituted by an axially rotatable support drum 21 of a type well known in the art and which may be axially rotated to roll up the sheet 18 thereabout or to unroll the sheet therefrom depending on the direction of axial rotation.
The rotati~n may be imparted by a crank mechanism 22 actuable from the interior of an enclosure containing the windcw frame 11 or other convenient actuable means such as an electrical motor drive (not shown) but well known in the art. In order for the s'heet 18 to be dis-placed along a straight plane in the space between the glass pane closures 15 and 16, vertical guide rails are secured along the vertical ends of the space 17 and secured to the side walls 14 of the frame 11 and retain therein a vertical edge portion of thc shee-t 18 for guided displacement therealong.
Referring now additionally to Figures 2 to 5, it is seen that the t'herrnal insulating sheet mer~ber 18 is formed by a plurality of elongated insulated slats 24 which are interconnected adjacent one another in : ,. . .
parallel relationship. Each of the slats comprise a hollow elongated tube member 25 which define opposed elongated side walls 26 and 26', a top wall 27, and a bottom wall 28. The hollow elongated tube 25 is pre-ferably formed of an extruded plastic material, although it may be formed of other suitable materials, and a thermal insulating material 2g, such as a solid polystyrene foam material, is injected in at least a portion of the hollow elongated tube~
In order to interconnect the slats 24 together in elongated parallel relationship, there is formed, with the top and bottcm walls 27 and 28, a male connector 30 and a female connector 31, respectively. The male connector 30 is formed as an upstanding wall element 34 disposed transverse to the top wall 27 and terminatiny in an engageable end 32~ Spaced apart slots 33 are provi-ded along the upstanding wall portion 34 of the male connectors 30 whereby to facilitate disengagement of the slats with an adjacent slat by the insertion of a prying tool therein. The female connector element 31 is defined by a hollow cavity 32 formed inwardly of the bottom wall. A slot 3~ is formed in the bottom wall to receive the engageable end 32 of a male connector of an adjacent slat and to retain it captive within the cavity and at the same time permikting articulated movement between adjacent slats. For e~ample, it can be seen that the inwardly turned end portion 36 of the engageable end 32 will rest on the inner surface 37 of the bottom wall 28 with the upstanding wall portion 34 extending through the slot 35~ Thus, there is provided , .
. . .
, . . . . .
an articulated connection between adjacent slats.
As shown in Figures 2 to 5, the slats may have various cross sectional con~igurations. For example, as shown în E'i.gure 2, both side walls 26 and 26~ are of curvate shape whereby to facilitate the storage of the thermal insulating sheet on a drum-type support mean,s such as 19. As shown in Figure 3, the sidP walls are substantially parallel to one another whereas in Figure 4, side wall 26 is a straight side wall while the side wall 26~ is formed of two curvate sections and this is to provide aesthetic exterior appearance and also to add structural rigidity to the wall. Structural rigidity is also added by the provision of transverse structural ribs 40 extending across the hollow space and the full length of the elongated tube 25, A bottom one of these structural ribs define the bottom cavity 32.
Figures 2 to 5 also show varicus configu-rations of male and female connectors 30 and 31. As shown in Figure 3, the bottom wall 28 is inwardly turned for improved retention of the engageable end 32 of the male connector 30. As shown in Figure 4, the engageable end is a triangular shaped end wall 41 and the slot 35 is disposed substantially central : 25 along the bottom wall thereby dividing the bottom wall into opposed inwardly extenclln~ wall sections 28' and 28", The section 28" has an inwardly turned retentlon lip 42 which engages a downwardly protruding retcntion lip 43 in the rnale connec-tor 41 forrned in one oE the arms of the triangular shaped end... This provides better retention of the articulated connection. Figure 5 shows a combination of various features of Figures 2 and 4 and comprises a plurality of structural ribs 40 extending across the hollow tu~e 25.
Referring now to Figure 7, there is shown another example of the construction of the thermal insulating sheet member 18 and as herein shown, the connectors for the slats 26 are provided by a narrow sheet of woven permeable ~abric material, such as a flexible screen material 45. The slats 26 are herein shown as Eormed with a convex triangular cross section top wall 45 and a concave triangular cross section bottom wall 46. ~he flexible material 45 is secured at opposed longitudinal end edges to the apex points 45' and 46' of the top and bottom walls 45 and 46, respectively so that the material will collapse in the area between adjacent top and bottom walls of adjacent slats 26 and 26~ as these walls are displaced close toyether when a bottom one of the slats reaches the bottom wall 47 (see Fig. 1) of the space 17 and the sheet material continues to be unrolled from the support means 19 whereby the weight of the slats 26 above the bottom slats will compress the screen material 45 due to their weight thereagainst As shown in Figure 7, the glass pane closures are compri.sed of at least two window panes 48 and 49, with the pane 48 secured for s].:iding ~ra displacement in the track 50 secured to the frame 11.
The glass panes 48 and 49 are secured in planar parallel relationship to one another, as is usual in such window constructions, and by sliding displacement of the frame . . ; , , .
3~
48, a passage is provided through the window frame for communication of the interior of a closure wikh out-side air. In such arrangement as sho~m in Figure 7, the sheet member 18 would act as a blind and at the same time, permit the passage of fresh air therethrough~
The triangular shaped ends of the slats would permit the minimum amount of sunlight to penetrate the blind when the screen material is ~ully extended due to their sloping end faces.
As shown in Figure 6, a flexible seal means, such as an elongated nylon brush 50 having a support 51, may be secured.to the top face 52 of the top wall 12 of the frame 11 with the brush portion 53 extending in frictional contact with the face of the side walls 26 and 26' of the slats 24. Such a seal is disposed on each side of the slotted opening 20 and it is desirable to provide these in a window construction with hermetically sealed glass panes whereby to preve~t dust from pene-trating the space and to minimize outside air ingressO
; 20 It is within the ambit of the present inven-tion to provide any obvious modifications of the examples of the preferred embodiment described herein. For example, the slats may be constructed of materials other than plastic material and may even be formed of an alumininum extrusion. Also, the lower one of the slats may be formed of a heav:Ler rnaterial to provide ease of lowering the sheet 18 in the spae~e between the pan~s.
` Also, the actuable support rneans may be const.ituted bymeans other than a rotatable drum and the sheet may be retracted downwardly instead of upwardly in the space between the glass panes. Still further, the slats may '~ 3~
be formed of a single piece of material, such as wood or rigid foam and each of the slats may be secured together by other means well known in the art.
Still further, it is conceivable that the thermal insulating sheet member be formed as a single sheet.
Also, the sheet could be drawn by cables or strings secured to a bottom edge thereof along the ends and extending in end rails not to obstruct the window area whereby the sheet member may be retracted much like the conventional blind which is rolled on a spring-loaded - drum~
BACKGROU~D OF INVENTION
(a) Field of the Invention The present invention relates to a window construction having a displaceable thermal insulating S sheet member displaceable in a space formed between two glass pane closures.
(b) Description of Prior Art It is desirable to provide a Layer of thermal insulation across a window pane to prevent ingress of cold air within an enclosure during cold winter months. It is known, for example, as described in UOS. Patent ~o. 4,057,936 issued on November 15, 1977 to provide window shutters secured to the outer periphery of a window frame and which may be placed to cover the glass pane portion of the window whereby to provide an insulating wall exteriorly of the window pane to insulate the window area. For this purpose, the panel sections of the shutters csmprise a foamed polymeric ; material therein~ These panel sections are also used to seal off the window area against sunlight. However, by having the panels secured on the outside of the window frame, the panels may only be placed in a close position by the exterior of the enclosure. A disadvantage of this is that in the cold winter months, it is desir- ;
able to have sunlight p~netrate the window area during -the daylight hours whereby to warm the inside of the -~ enclosure and to close off the window area in the night-time to provide an insulating layex. Therefore, it is necessary for a person to leave the interior of the enclosure every time the panels have to be closed or .~
.~. ~, v~
', ',r,~ ?3~L
opened and this is not convenient, particularly in geographical areas where there is no snowfall. Also, when the window ~rame is located in a hard-to-reach area, such as on a second s~orey of a dwelling, etc., the only manner in which the panels may be closed is through the window pane area and, therefore, such panels cannot be used with window frames having sealed glass panes but only with window frames having displaceable window panes whereby access to the exterior may be pro-vided through the window opening.
SUMMARY OF I~VE~TIO~
The present invention contemplates a novel - displaceable thermal insulating sheet member disposed in the space between spaced apart glass pane closures.
It is known to provide adjustable blinds in hermeti-cally sealed window casings in the space between opposed glass panes to obstruct sunlight. For example, this is disclosed in U.S. Patent No. 3,253,644 issued on May 31, 1966, U.S. Patent ~o. 3,702,040 issued on ~ovember 7, 1972 and many other such patents. However, all o-f the prior art known, relates to blinds disposed in such a fashion and it is a further feature of the present inven-tion to provide a displaceable thermal insulating sheet member which is displaceable within the space between opposed glass pane closures and which may also act as a blind closure in order to bloc~ off the sunlight when it is not desired~
Another feature of the pre~ent invention is to provide a thermal insulatiny sheet member which i5 formed ~rom a plurality of elongated slats which are connectible longitudinally to each other and each con-. .
taining a thermal insulating foam -therein.
Another feature of the present invention is to provide actuable support means in conjunction with a window frame whereby the thermal insulating sheet member may be displaced in the space between two - spaced apart glass pane closures whereby to block off the window area entirely or partially.
Another feature of the present invention is to provide a displaceable thernal insulating sheet m~mber which is displaceable in the opening between two ~paced apart glass pane closures, and wherein the glass pane closures each comprise at least two sliding glass panes whereby outside air may pass through the window opening and wherein the insulating sheet member is formed of a plurality of elongated slats which are connected longitudinally by a woven permeable fabric material, such as a screen material.
According to the above features, from a broad aspect, the present invention provides a window compris-; 20 ing a frame defining a window opening. The opening is closed by two spaced apart glass pane closures. A space is provided between the pane closure and a displaceable thermal insulating member is secured to actuable support means whereby to displace the insulating member in the space between the glass pane closures. The thermal insulating memher is formed by a plurality of elongated insulated slats interconnected adjacent one another in parallel xelationship and displaceable in a cornmon plane between the glass pane closures. Each one of the slats lS formed by a hollow elonyated tube member defining opposed elongated side walls and top and bottom walls.
A thermal insulating material is disposed in the hollow tube member.
BRIEF DESCRIPTION OF DRAWINGS
A preferred embodiment of the present invention will now be d~scribed with reference to the examples thereof illustrated by the accompanying drawings in which:
, . . .
- 4a -.~ ~
: ,. . . ., . .. . , . : `
3~
FIGURE 1 is a perspective view showiny the insulatable window construction of the present invention' FIGURES 2 to 5 are perspective fragmented section views showing examples of the construction of the slats forming the thermal insulating sheet member of the present invention, FIGURE 6 is a fragmented perspective view of a corner portion of the window frarne showing the passage of the insulating sheet member therethrough;
and FIGURE 7 is a fragmented cross-sectional side view ~howing another example of the construction of the thermal insulating sheet member of the present invention as used in a window frame having glass pane closures ~hich are displaceable in the frame.
DESCRIPTIO~ OF PREFERRED EMBODIME~TS
Referring now to the drawings, and more particularly to Figure 1, there is shown generally at 10, the insulatable window construction of the present invention~ The window comprises a rectangular frame 11 having a top wall 12, bottom wall 13, and side walls 14 (only one being shown herein). The window frame 11 defines a window op~ning, herein shown as being closed by two spaced apart glass panes 15 and 16 which are hermetically sealed on all side edges thereof to the frarne 11. However, as will later be described, the glass pane closures may be formed of at least two window panes secured for sliding displacement in the frame whereby to provide an opening through the window.
, ~ - . . . .
3~L
As herein shown, a space 17 is defined between the two spaced apart glass pane closures 15 and 1~ and a displaceable thermal insulating sheet mem~er 18 is displaceable therein. The thermal insulating sheet member 18 is secured to an actuable support means 19 to displace the sheet member in the space 17 between the glass pane closuresO To this end, it is required that the top wall 12 be provided with a slotted opening 20 having sufficient length to permit passage of the insu-lating sheet member 18 therethrough.
The actuable support means is herein constituted by an axially rotatable support drum 21 of a type well known in the art and which may be axially rotated to roll up the sheet 18 thereabout or to unroll the sheet therefrom depending on the direction of axial rotation.
The rotati~n may be imparted by a crank mechanism 22 actuable from the interior of an enclosure containing the windcw frame 11 or other convenient actuable means such as an electrical motor drive (not shown) but well known in the art. In order for the s'heet 18 to be dis-placed along a straight plane in the space between the glass pane closures 15 and 16, vertical guide rails are secured along the vertical ends of the space 17 and secured to the side walls 14 of the frame 11 and retain therein a vertical edge portion of thc shee-t 18 for guided displacement therealong.
Referring now additionally to Figures 2 to 5, it is seen that the t'herrnal insulating sheet mer~ber 18 is formed by a plurality of elongated insulated slats 24 which are interconnected adjacent one another in : ,. . .
parallel relationship. Each of the slats comprise a hollow elongated tube member 25 which define opposed elongated side walls 26 and 26', a top wall 27, and a bottom wall 28. The hollow elongated tube 25 is pre-ferably formed of an extruded plastic material, although it may be formed of other suitable materials, and a thermal insulating material 2g, such as a solid polystyrene foam material, is injected in at least a portion of the hollow elongated tube~
In order to interconnect the slats 24 together in elongated parallel relationship, there is formed, with the top and bottcm walls 27 and 28, a male connector 30 and a female connector 31, respectively. The male connector 30 is formed as an upstanding wall element 34 disposed transverse to the top wall 27 and terminatiny in an engageable end 32~ Spaced apart slots 33 are provi-ded along the upstanding wall portion 34 of the male connectors 30 whereby to facilitate disengagement of the slats with an adjacent slat by the insertion of a prying tool therein. The female connector element 31 is defined by a hollow cavity 32 formed inwardly of the bottom wall. A slot 3~ is formed in the bottom wall to receive the engageable end 32 of a male connector of an adjacent slat and to retain it captive within the cavity and at the same time permikting articulated movement between adjacent slats. For e~ample, it can be seen that the inwardly turned end portion 36 of the engageable end 32 will rest on the inner surface 37 of the bottom wall 28 with the upstanding wall portion 34 extending through the slot 35~ Thus, there is provided , .
. . .
, . . . . .
an articulated connection between adjacent slats.
As shown in Figures 2 to 5, the slats may have various cross sectional con~igurations. For example, as shown în E'i.gure 2, both side walls 26 and 26~ are of curvate shape whereby to facilitate the storage of the thermal insulating sheet on a drum-type support mean,s such as 19. As shown in Figure 3, the sidP walls are substantially parallel to one another whereas in Figure 4, side wall 26 is a straight side wall while the side wall 26~ is formed of two curvate sections and this is to provide aesthetic exterior appearance and also to add structural rigidity to the wall. Structural rigidity is also added by the provision of transverse structural ribs 40 extending across the hollow space and the full length of the elongated tube 25, A bottom one of these structural ribs define the bottom cavity 32.
Figures 2 to 5 also show varicus configu-rations of male and female connectors 30 and 31. As shown in Figure 3, the bottom wall 28 is inwardly turned for improved retention of the engageable end 32 of the male connector 30. As shown in Figure 4, the engageable end is a triangular shaped end wall 41 and the slot 35 is disposed substantially central : 25 along the bottom wall thereby dividing the bottom wall into opposed inwardly extenclln~ wall sections 28' and 28", The section 28" has an inwardly turned retentlon lip 42 which engages a downwardly protruding retcntion lip 43 in the rnale connec-tor 41 forrned in one oE the arms of the triangular shaped end... This provides better retention of the articulated connection. Figure 5 shows a combination of various features of Figures 2 and 4 and comprises a plurality of structural ribs 40 extending across the hollow tu~e 25.
Referring now to Figure 7, there is shown another example of the construction of the thermal insulating sheet member 18 and as herein shown, the connectors for the slats 26 are provided by a narrow sheet of woven permeable ~abric material, such as a flexible screen material 45. The slats 26 are herein shown as Eormed with a convex triangular cross section top wall 45 and a concave triangular cross section bottom wall 46. ~he flexible material 45 is secured at opposed longitudinal end edges to the apex points 45' and 46' of the top and bottom walls 45 and 46, respectively so that the material will collapse in the area between adjacent top and bottom walls of adjacent slats 26 and 26~ as these walls are displaced close toyether when a bottom one of the slats reaches the bottom wall 47 (see Fig. 1) of the space 17 and the sheet material continues to be unrolled from the support means 19 whereby the weight of the slats 26 above the bottom slats will compress the screen material 45 due to their weight thereagainst As shown in Figure 7, the glass pane closures are compri.sed of at least two window panes 48 and 49, with the pane 48 secured for s].:iding ~ra displacement in the track 50 secured to the frame 11.
The glass panes 48 and 49 are secured in planar parallel relationship to one another, as is usual in such window constructions, and by sliding displacement of the frame . . ; , , .
3~
48, a passage is provided through the window frame for communication of the interior of a closure wikh out-side air. In such arrangement as sho~m in Figure 7, the sheet member 18 would act as a blind and at the same time, permit the passage of fresh air therethrough~
The triangular shaped ends of the slats would permit the minimum amount of sunlight to penetrate the blind when the screen material is ~ully extended due to their sloping end faces.
As shown in Figure 6, a flexible seal means, such as an elongated nylon brush 50 having a support 51, may be secured.to the top face 52 of the top wall 12 of the frame 11 with the brush portion 53 extending in frictional contact with the face of the side walls 26 and 26' of the slats 24. Such a seal is disposed on each side of the slotted opening 20 and it is desirable to provide these in a window construction with hermetically sealed glass panes whereby to preve~t dust from pene-trating the space and to minimize outside air ingressO
; 20 It is within the ambit of the present inven-tion to provide any obvious modifications of the examples of the preferred embodiment described herein. For example, the slats may be constructed of materials other than plastic material and may even be formed of an alumininum extrusion. Also, the lower one of the slats may be formed of a heav:Ler rnaterial to provide ease of lowering the sheet 18 in the spae~e between the pan~s.
` Also, the actuable support rneans may be const.ituted bymeans other than a rotatable drum and the sheet may be retracted downwardly instead of upwardly in the space between the glass panes. Still further, the slats may '~ 3~
be formed of a single piece of material, such as wood or rigid foam and each of the slats may be secured together by other means well known in the art.
Still further, it is conceivable that the thermal insulating sheet member be formed as a single sheet.
Also, the sheet could be drawn by cables or strings secured to a bottom edge thereof along the ends and extending in end rails not to obstruct the window area whereby the sheet member may be retracted much like the conventional blind which is rolled on a spring-loaded - drum~
Claims (18)
1. A window comprising a frame defining a window opening, said opening being closed by two spaced apart glass pane closures, a space between said pane closures, and a displaceable thermal insulating member secured to actuable support means to displace said insulating member in said space between said glass pane closures, said thermal insulating member being formed by a plura-lity of elongated insulated slats interconnected adjacent one another in parallel relationship and displaceable in a common plane between said glass pane closures, each one of said slats being formed by a hollow elongated tube member defining opposed elongated side walls and top and bottom walls, and a thermal insulating material disposed in said hollow tube member.
2. A window as claimed in claim 1 wherein one or more connectors are secured to said top and bottom walls to provide interconnection and of opposed ones of said plurality of slats.
3. A window as claimed in claim 2 wherein said connectors are comprised by a male connector element extending above said top wall and terminating in an engageable end, and a female connector element in said bottom wall defined by a hollow cavity formed inwardly of said bottom wall, and a slot in said bottom wall to receive said engageable end of a male connector of an adjacent slat captive in said cavity and permitting limited articulated movement between adjacent slats.
4. A window as claimed in claim 3 wherein said connectors extend throughout the length of said slats, said male connector being constituted by an upstanding flat wall, said female connector also extending through-out the length of said slats.
5. A window as claimed in claim 4 wherein said engageable end is a hook shaped end of said male con-nector, said slot being disposed in said bottom wall adjacent an elongated bottom end edge of one of said side walls, said bottom wall constituting a retention wall for said hook shaped end.
6. A window as claimed in claim 4 wherein said engageable end is a triangular shaped end wall, said slot being disposed substantially central along said bottom wall dividing said bottom wall into opposed in-wardly extending wall sections for retention of said triangular shaped end wall therein.
7. A window as claimed in claim 2 wherein said connectors are constituted by a narrow sheet of flexible material secured between adjacent slats and extending from along said top wall and bottom wall of adjacent slats.
8. A window as claimed in claim 7 wherein said top wall is of convex triangular cross section and said bottom wall of concave triangular cross section, said flexible material being secured at opposed longitudinal end edges to apex points of said top and bottom wall so that said material will collapse in the area between adjacent top and bottom walls of adjacent slats as these walls are displaced close together, said material being a woven permeable fabric.
9. A window as claimed in claim 1 wherein elon-gated transverse structural ribs are formed and extend in said hollow elongated tube between said side walls.
10. A window as claimed in claim 1 wherein at least one of said side walls is of curvate shape whereby to facilitate the storage of said thermal insulating sheet on a drum type support means.
11. A window as claimed in claim 1 wherein said hollow elongated tube is a molded plastic tube, said thermal insulating material being a solid poLystyrene foam material injected in at least a portion of said hollow elongated tube.
12. A window as claimed in claim 1 wherein said actuable support means is an axially rotatable support drum disposed above a top wall of said frame member, a slotted opening in said top wall for passage of said insulating sheet member therethrough, a top end edge of said sheet member being secured to said drum whereby said sheet will roll about said drum when axially rota-ted to retract said sheet from between said glass pane closures through said slotted opening.
13. A window as claimed in claim 12 wherein flexible seal means is disposed to each side of said slotted opening and having a flexible section for fric-tional engagement with opposed side walls of said sheet passing through said slotted opening.
14. A window as claimed in claim 12 wherein vertical guide rails are disposed along vertical ends of said space to retain a vertical edge portion of said sheet for guided displacement therealong.
15. A window as claimed in claim 12 wherein said support drum is axially rotatable by actuable means constituted by a crank mechanism.
16. A window as claimed in claim 12 wherein said support drum is axially rotatable by actuable means constituted by an electrical motor drive.
17. A window as claimed in claim 1 wherein said pane closures each comprise at least two window panes secured for sliding displacement in said frame and having their planar axis offset in parallel relationship to one another to provide open communication through said window opening.
18. A window as claimed in claim 1 wherein each said pane closures comprise a single glass pane herme-tically sealed on all side edges thereof to said frame member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA363,774A CA1108934A (en) | 1980-10-31 | 1980-10-31 | Window with internal retractable insulating blind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA363,774A CA1108934A (en) | 1980-10-31 | 1980-10-31 | Window with internal retractable insulating blind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1108934A true CA1108934A (en) | 1981-09-15 |
Family
ID=4118318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA363,774A Expired CA1108934A (en) | 1980-10-31 | 1980-10-31 | Window with internal retractable insulating blind |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1108934A (en) |
-
1980
- 1980-10-31 CA CA363,774A patent/CA1108934A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |