CA1194668A - Mullion portion in a unit type curtain wall - Google Patents
Mullion portion in a unit type curtain wallInfo
- Publication number
- CA1194668A CA1194668A CA000434148A CA434148A CA1194668A CA 1194668 A CA1194668 A CA 1194668A CA 000434148 A CA000434148 A CA 000434148A CA 434148 A CA434148 A CA 434148A CA 1194668 A CA1194668 A CA 1194668A
- Authority
- CA
- Canada
- Prior art keywords
- curtain wall
- side frame
- sealing band
- opposed
- frame members
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
- E04B2/90—Curtain walls comprising panels directly attached to the structure
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Load-Bearing And Curtain Walls (AREA)
- Building Environments (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A plurality of standardized curtain wall units of rectan-gular shape are arrange in rows and columns, with a predetermined gap between the opposed side frame members of every two horizontal-ly adjoining curtain wall units. For closing the gap so as to allow relative displacement of the individual curtain wall units in their own plane, a sealing band of elestic matrial has its lateral marginal edge portions engaged in a pair of opposed mount-ing grooves in the opposed side frame members of every two hori-zontally adjoining curtain wall units. The sealing band has a width less than the distance between the bottoms of the pair of opposed mounting grooves in which the sealing band is engaged.
Thus assembled unit type curtain wall assembly has a room tempera-ture control function, with passageway for conditioning air and hot or cold water extending longitudinally through the side frame members of each curtain wall unit. The gap between any two such side frame members is closed by three sealing bands, one on the indoor side of the gap and the other two on the outdoor side of the gap.
A plurality of standardized curtain wall units of rectan-gular shape are arrange in rows and columns, with a predetermined gap between the opposed side frame members of every two horizontal-ly adjoining curtain wall units. For closing the gap so as to allow relative displacement of the individual curtain wall units in their own plane, a sealing band of elestic matrial has its lateral marginal edge portions engaged in a pair of opposed mount-ing grooves in the opposed side frame members of every two hori-zontally adjoining curtain wall units. The sealing band has a width less than the distance between the bottoms of the pair of opposed mounting grooves in which the sealing band is engaged.
Thus assembled unit type curtain wall assembly has a room tempera-ture control function, with passageway for conditioning air and hot or cold water extending longitudinally through the side frame members of each curtain wall unit. The gap between any two such side frame members is closed by three sealing bands, one on the indoor side of the gap and the other two on the outdoor side of the gap.
Description
MULLION PORTION IN A UNIT TYPE CURTAIN WALL
This invention concerns a unit type curtain wall assembly comprising a plurality of standardized curtain wall units, with or without provisions for the temperature control or air conditioning of rooms. More specifically the invention deals with improved means in such a unit type curtain wall assembly for sealing the gaps (mullion portion) between the horizontally neighboring ones of the curtain wall units.
Prior art and the present invention will be described with reference to the accompanying drawings, in which FIG. 1 is a horizontal section through the prior art tongue-and-groove joint used for sealing a gap between horizon-tally neighboring curtain wall units;
FIG. 2 is an elevation of a preferred form of a unit type curtain wall assembly constructed in accordance with the principles of the present invention;
FIG. 3 is an enlarged, fragmentary horizontal section through the unit type curtain wall assembly of FIG. 2, taken along the line III-III therein and showing the means for sealing the gap between every two horizontally adjoining curtain wall units;
FIG. 4 is a still more enlarged, fragmentary horizon-t~lly section through one of the sealing bands of FIG. 3 together with associated means, the view being explanatory of the operating principles of the invention;
FIG. 5 is a horizontal section throush an alternative form of the sealing band in accordance with the invention; and FIG. 6 is also a horizontal section through another alternative form of the sealing band in accordance with the invention.
The standardized curtain wall units making up a unit type curtain wall assembly are usually arranged in rows and columns in a vertical plane. Each row of curtain wall units must be joined to each other so as to be sealed against the passage of water and air while being relatively displaceable, within limits, in their own plane. A conventional expedient to this end has essentially been a tongue-and-groove joint (FIG. 1), with a tongue on a vertical side frame member of one curtain wall unit engaged, via sealing strips affixed thereto, in a groove in the opposed side frame member of the neighboring curtain wall unit.
An objection to this prior art means is that the horizontally adjoining curtain wall units are displaceable towards each other only the distance between the bottom of the groove and the opposed end of the tongue. It may be contemplated to allow large relative displacement of the curtain wall units by increasing the depth of the groove. This solution is unsatisfactory, however, because then the dimension of each side frame member of the curtain wall units must be correspond-ingly increased in the depth direction of the groove. Such wide ~rame members necessitate, of course, a corresponding reduction in the horizontal dimension of the opening for a ~ ?~
window bounded by the frame members of each curtain wall unit, so that the exterior of the curtain wall and the daylighting function are deteriorated. This problem attendant on the prior art will be later discussed in some more detail.
The present invention overcomes the above problem of the prior art and succeeds in sealing a gap (mullion portion) between the side frame members of every two horizontally adjoining curtain wall units in a unit type curtain wall assembly, in such a way that the curtain wall units are dis-placeable toward and away from each other to a greater extentthan heretofore, without the need for increasing the width of the side frame members.
Stated in its simplest form, the invention suggests the use of a sealing band of elastic material between the opposed side frame members of every two horizontally adjoining curtain wall units. The opposed side frame mernbers has a preassigned gap (mullion portion) therebetween. The sealing band is mounted in place by having its opposite lateral marginal edge portions engaged in a pair of opposed mounting ~rooves of a predetermined depth defined in the opposed side frame members. The width of the sealing band is less than the distance between the bottoms of the pair of mounting grooves.
Thus, upon displacement of the two horizontally neighboring curtain wall units toward each other, the sealing band will be bottomed in the pair of opposed mounting grooves.
Further the sealing band permits continued displacement of the curtain wall units toward each other by virtue of its own elasticity. It will have been seen, then, that each mounting groove need not be so deep as the groove of the conventional tongue-and-groove joint to allow the relative displacement of the curtain wall units to a given degree. The dimension of each side frame member of the curtain wall units in the depth direction of the mounting groove can therefore be reduced to a required minimum to afford a correspondingly lar~e opening for a window in each curtain wall unit, so that its exterior and the daylighting function are maintained in a good condition.
In a preferred embodiment disclosed herein the invention is applied to a unit type curtain wall assembly having a built-in room temperature control system. This particular application dictates the use of three sealing bands between every two horizontally adjoining curtain wall units.
The combination of the three sealing bands, with two intervening closed spaces, effectively prevents heat flow in either direc-tion therethrough The above and other features and advantages of this invention and the manner of attaining them will become more apparent, and the invention itself will best to understood, from a study of the following description and appended claims, with reference had to the attached drawings.
3~
In the prior art joint between the opposed side frame mer~ers a and c of two horizontally adjoining curtain wall units, a tongue b on the side frame member a is engaged in a groove d in the other side frame member c. The tongue _ has a pair of sealing strips e on its opposite sides for sliding contact with the opposed vertical surfaces defining the ~roove d, Normally a gap Ll exists between the opposed ends a' and c' of the side frame members a and c, and the distal end b' of the tongue b is spaced a distance L2 from the bottom d' of the groove ~.
Upon displacement of the two curtain wall units toward each other the tongue _ becomes received deeper in the groove d. Thus, in order to allow the displacement of the curtain wall units toward each other the full distance Ll between their opposed side frame members a and c, the distance L2 between the tongue end b' and groove bottom d' must be at least equal to Ll. The deeper the groove d, the greater must be the dimension of the side frame member c in the depth direction of the groove, and the smaller must be the dimension of the opening in the curtain wall unit in the same direction, with respect to a given size of the curtain wall unit, The present invention solves the above problem.
Described hereinbelow is a preferred embodiment of the invention as applied to a unit type curtain wall assembly with a built-in room temperature con-trol or air conditioning system.
With reference to FIG. 2 the exemplified unit type curtain wall assembly in acco;d~lc~ w th the invention com-prises a plurality of standardized curtain wall units A arrayed in rows and columns. Each curtain wall unit A has a pair of vertical side frame members l, a horizontal top frame member
This invention concerns a unit type curtain wall assembly comprising a plurality of standardized curtain wall units, with or without provisions for the temperature control or air conditioning of rooms. More specifically the invention deals with improved means in such a unit type curtain wall assembly for sealing the gaps (mullion portion) between the horizontally neighboring ones of the curtain wall units.
Prior art and the present invention will be described with reference to the accompanying drawings, in which FIG. 1 is a horizontal section through the prior art tongue-and-groove joint used for sealing a gap between horizon-tally neighboring curtain wall units;
FIG. 2 is an elevation of a preferred form of a unit type curtain wall assembly constructed in accordance with the principles of the present invention;
FIG. 3 is an enlarged, fragmentary horizontal section through the unit type curtain wall assembly of FIG. 2, taken along the line III-III therein and showing the means for sealing the gap between every two horizontally adjoining curtain wall units;
FIG. 4 is a still more enlarged, fragmentary horizon-t~lly section through one of the sealing bands of FIG. 3 together with associated means, the view being explanatory of the operating principles of the invention;
FIG. 5 is a horizontal section throush an alternative form of the sealing band in accordance with the invention; and FIG. 6 is also a horizontal section through another alternative form of the sealing band in accordance with the invention.
The standardized curtain wall units making up a unit type curtain wall assembly are usually arranged in rows and columns in a vertical plane. Each row of curtain wall units must be joined to each other so as to be sealed against the passage of water and air while being relatively displaceable, within limits, in their own plane. A conventional expedient to this end has essentially been a tongue-and-groove joint (FIG. 1), with a tongue on a vertical side frame member of one curtain wall unit engaged, via sealing strips affixed thereto, in a groove in the opposed side frame member of the neighboring curtain wall unit.
An objection to this prior art means is that the horizontally adjoining curtain wall units are displaceable towards each other only the distance between the bottom of the groove and the opposed end of the tongue. It may be contemplated to allow large relative displacement of the curtain wall units by increasing the depth of the groove. This solution is unsatisfactory, however, because then the dimension of each side frame member of the curtain wall units must be correspond-ingly increased in the depth direction of the groove. Such wide ~rame members necessitate, of course, a corresponding reduction in the horizontal dimension of the opening for a ~ ?~
window bounded by the frame members of each curtain wall unit, so that the exterior of the curtain wall and the daylighting function are deteriorated. This problem attendant on the prior art will be later discussed in some more detail.
The present invention overcomes the above problem of the prior art and succeeds in sealing a gap (mullion portion) between the side frame members of every two horizontally adjoining curtain wall units in a unit type curtain wall assembly, in such a way that the curtain wall units are dis-placeable toward and away from each other to a greater extentthan heretofore, without the need for increasing the width of the side frame members.
Stated in its simplest form, the invention suggests the use of a sealing band of elastic material between the opposed side frame members of every two horizontally adjoining curtain wall units. The opposed side frame mernbers has a preassigned gap (mullion portion) therebetween. The sealing band is mounted in place by having its opposite lateral marginal edge portions engaged in a pair of opposed mounting ~rooves of a predetermined depth defined in the opposed side frame members. The width of the sealing band is less than the distance between the bottoms of the pair of mounting grooves.
Thus, upon displacement of the two horizontally neighboring curtain wall units toward each other, the sealing band will be bottomed in the pair of opposed mounting grooves.
Further the sealing band permits continued displacement of the curtain wall units toward each other by virtue of its own elasticity. It will have been seen, then, that each mounting groove need not be so deep as the groove of the conventional tongue-and-groove joint to allow the relative displacement of the curtain wall units to a given degree. The dimension of each side frame member of the curtain wall units in the depth direction of the mounting groove can therefore be reduced to a required minimum to afford a correspondingly lar~e opening for a window in each curtain wall unit, so that its exterior and the daylighting function are maintained in a good condition.
In a preferred embodiment disclosed herein the invention is applied to a unit type curtain wall assembly having a built-in room temperature control system. This particular application dictates the use of three sealing bands between every two horizontally adjoining curtain wall units.
The combination of the three sealing bands, with two intervening closed spaces, effectively prevents heat flow in either direc-tion therethrough The above and other features and advantages of this invention and the manner of attaining them will become more apparent, and the invention itself will best to understood, from a study of the following description and appended claims, with reference had to the attached drawings.
3~
In the prior art joint between the opposed side frame mer~ers a and c of two horizontally adjoining curtain wall units, a tongue b on the side frame member a is engaged in a groove d in the other side frame member c. The tongue _ has a pair of sealing strips e on its opposite sides for sliding contact with the opposed vertical surfaces defining the ~roove d, Normally a gap Ll exists between the opposed ends a' and c' of the side frame members a and c, and the distal end b' of the tongue b is spaced a distance L2 from the bottom d' of the groove ~.
Upon displacement of the two curtain wall units toward each other the tongue _ becomes received deeper in the groove d. Thus, in order to allow the displacement of the curtain wall units toward each other the full distance Ll between their opposed side frame members a and c, the distance L2 between the tongue end b' and groove bottom d' must be at least equal to Ll. The deeper the groove d, the greater must be the dimension of the side frame member c in the depth direction of the groove, and the smaller must be the dimension of the opening in the curtain wall unit in the same direction, with respect to a given size of the curtain wall unit, The present invention solves the above problem.
Described hereinbelow is a preferred embodiment of the invention as applied to a unit type curtain wall assembly with a built-in room temperature con-trol or air conditioning system.
With reference to FIG. 2 the exemplified unit type curtain wall assembly in acco;d~lc~ w th the invention com-prises a plurality of standardized curtain wall units A arrayed in rows and columns. Each curtain wall unit A has a pair of vertical side frame members l, a horizontal top frame member
2, and a horizontal bottom frame member 3, which are combined into a rectangulax shape. Each curtain wall unit A further comprises a pair of intermediate frame members 4 extending horizontally between the pair of side frame members 1. Thus the rectangular opening for a window bounded by the side, top, and bottom frame members l, 2 and 3 of each curtain wall unit is divided by the intermediate frame members 4 into an upper opening Bl and a lower opening B2. These openings are closed by panels or panes Cl and C2 of double glazins or other suitable heat insulating material, Another panel C3 of any desired heat insulating material is fitted between the pair of inter-mediate frame members 4, Reference is now directed to FIG. 3 in order to describe the in~ention in more specific aspects thereof, Shown in this figure are the opposed side frame members 1 of any two horizontally adjoining curtain wall units A in the unit type curtain wall assembly of FIC-. 2, together with three sealin~
bands 5, 6 and 7 of elastic material closing the gap ( a mullion portion~ but hereinafter represents merely as !'gap") G there-between. The topmost sealing band 5 faces indoors, and the lowermost sealing band 7 outdoors. The sealing band 5 will therefore be hereinafter referred to as the indoor sealing band, the sealing band 6 as the first outdoor sealing band, ~, _ ~ 9~
and the sealing band 7 as the secon~ outdoor sealing band.
Each side frame member 1 is hollow and substantially rectangular in cross-sectional shape. It has a pair of side walls 10 and 11, an exterior end wall 12, and an interior end wall 13, defining in combination a first passageway 15 of rectangular cross section for the flow of conditioning air.
The interior end wall 13 is thicker than the other walls 10, 11 and 12 and has formed longitudinally therethrough a second passageway 17 of circular cross section for the flow of a heat transfer mediurn as in the form of hot or cold water.
The second passageway 17 is located closer to one side of the interior end wall 13, away from the side frame member 1 of the neighboring curtain wall unit A, to make room for a recess 18 also formed in the interior end wall 13. Thus, cross-sectionally, the first passageway 15 occupies a major portion of each side frame member 1, and the second passageway 17 lies interiorly of the first passageway in side-by-side relation to the recess 18.
As has been known, the conditioning air in the first passageway 15 is expelled into the rooms through vents in the pertinent horizontal frame members of the unit type curtain wall assembly. The heat transfer fluid, on the other hand, radiates the heat into the rooms or absorbs the heat of air throu~h the frame members, The recess 18 in the interior end wall 13 is defined in part by a flange 23 projecting interiorly from the thin portion 13'1 of the interior end wall and by another flange 24 I
formed in coplanar relation to the indoor surface 13'a of the interior end wall. These flanges 23 and 2~ are arranged to I~av~ the recess 18 o~en to the aa~ G between the two opposed _ _ _ ~ , side frame members 1.
Fixedly mounted in the recess 18 is an approximately W-shaped mounting member or members ~1 which define in co~bina-tion with the flange 24 a mounting groove 8 open to the gap G
between the opposed side frame members 1. The aforesaid indoor ¦ sealing band 5 has its opposite lateral marginal edge portions ¦ engaged in the pair of opposed mounting grooves 8 in the side frame members 1, thus closing the gap G therebetween on its ¦ indoor side. A plurality of hollows 5a of triangular cross ¦ section extend longitudinally through the indoor sealing band ¦ 5. The arrangement of the hollows 5a is such that the indoor ¦ sealing band 5 takes the form of a truss. The width _l of ¦ the indoor sealing.band 5 is less than the distance h2 between ¦ the bottoms 8_ of the pair of opposed mounting grooves 8.
¦ The ex-terior end wall 12 of each side frame member 1 ¦ has a mount 16 formed integral therewith on its exterior side.
¦ The mount 16 is of hollow construction, including a side wall 16a, an end wall 16b, and another side wall 16c. Between side wall 16a and end wall 16b there is defined another mounting groove 19 open to the gap G between the side frame members 1.
The noted first outdoor sealing band 6 has its lateral marginal edge portions engaged in the pair of opposed mounting grooves 19 in the side frame members 1, thus closing the gap G on its outdoor side. The first outdoor sealing band
bands 5, 6 and 7 of elastic material closing the gap ( a mullion portion~ but hereinafter represents merely as !'gap") G there-between. The topmost sealing band 5 faces indoors, and the lowermost sealing band 7 outdoors. The sealing band 5 will therefore be hereinafter referred to as the indoor sealing band, the sealing band 6 as the first outdoor sealing band, ~, _ ~ 9~
and the sealing band 7 as the secon~ outdoor sealing band.
Each side frame member 1 is hollow and substantially rectangular in cross-sectional shape. It has a pair of side walls 10 and 11, an exterior end wall 12, and an interior end wall 13, defining in combination a first passageway 15 of rectangular cross section for the flow of conditioning air.
The interior end wall 13 is thicker than the other walls 10, 11 and 12 and has formed longitudinally therethrough a second passageway 17 of circular cross section for the flow of a heat transfer mediurn as in the form of hot or cold water.
The second passageway 17 is located closer to one side of the interior end wall 13, away from the side frame member 1 of the neighboring curtain wall unit A, to make room for a recess 18 also formed in the interior end wall 13. Thus, cross-sectionally, the first passageway 15 occupies a major portion of each side frame member 1, and the second passageway 17 lies interiorly of the first passageway in side-by-side relation to the recess 18.
As has been known, the conditioning air in the first passageway 15 is expelled into the rooms through vents in the pertinent horizontal frame members of the unit type curtain wall assembly. The heat transfer fluid, on the other hand, radiates the heat into the rooms or absorbs the heat of air throu~h the frame members, The recess 18 in the interior end wall 13 is defined in part by a flange 23 projecting interiorly from the thin portion 13'1 of the interior end wall and by another flange 24 I
formed in coplanar relation to the indoor surface 13'a of the interior end wall. These flanges 23 and 2~ are arranged to I~av~ the recess 18 o~en to the aa~ G between the two opposed _ _ _ ~ , side frame members 1.
Fixedly mounted in the recess 18 is an approximately W-shaped mounting member or members ~1 which define in co~bina-tion with the flange 24 a mounting groove 8 open to the gap G
between the opposed side frame members 1. The aforesaid indoor ¦ sealing band 5 has its opposite lateral marginal edge portions ¦ engaged in the pair of opposed mounting grooves 8 in the side frame members 1, thus closing the gap G therebetween on its ¦ indoor side. A plurality of hollows 5a of triangular cross ¦ section extend longitudinally through the indoor sealing band ¦ 5. The arrangement of the hollows 5a is such that the indoor ¦ sealing band 5 takes the form of a truss. The width _l of ¦ the indoor sealing.band 5 is less than the distance h2 between ¦ the bottoms 8_ of the pair of opposed mounting grooves 8.
¦ The ex-terior end wall 12 of each side frame member 1 ¦ has a mount 16 formed integral therewith on its exterior side.
¦ The mount 16 is of hollow construction, including a side wall 16a, an end wall 16b, and another side wall 16c. Between side wall 16a and end wall 16b there is defined another mounting groove 19 open to the gap G between the side frame members 1.
The noted first outdoor sealing band 6 has its lateral marginal edge portions engaged in the pair of opposed mounting grooves 19 in the side frame members 1, thus closing the gap G on its outdoor side. The first outdoor sealing band
3~
6 is also in the form of a truss, having a plurality of hollows 6a of triangular cross section formed longitudinally therethrough in suitable relative arrangement. The width h3 of the first outdoor sealing band 6 is less than the distance _~ between the bottoms l9a of the pair of opposed mounting yrooves 19.
Also defined in the end wall 16_ of the mount 16 are two mounting yrooves 20 and 21 which are both open exteriorly of the unit type curtain wall assembly. The junction of the end wall 16b and side wall 16C is thickened inwardly to provide a screw hole 22. The exterior end wall 12 of the side frame member 1 has a portion 12a leE-t exposed by the mount 16. This exposed portion of the exterior end wall has a pair of parallel spaced ridges 12c defining an undercut groove for a purpose yet to he described.
A retainer strip 32 is secured as by countersunk screws 33 to the end wall 16~D of the mount 16 of each side frame member 1 via connectors 30 and 31 of thermal insulating material. The retainer strip 32 has an L-shaped flange 34 directed interiorly therefrom and having formed therein two mounting grooves 36 and 37 in opposed relation to the mounting grooves 20 and 21 in the end wall 16_ of the mount 16. The heat insulating connector 30 is of approximately square shaped cross section, recessed along one corner for engagement with the ~-shaped flange 3~. The o-ther heat insula-ting connector 31 -takes -the form of a thin strip having its opposite marginal edge portions snugly fitted in the mounting groove 20 in the mount 16 and in -the mountinq groove 36 in the L-shaped flange 34.
The retainer strip 32 coates with the L-shaped flange 34 to define a mounting groove 35 opposed to the other similar mounting ~roove 35 associated with the neighboring side frame member 1. The aforementioned second outdoor sealing band 7 has its lateral marginal edge portions engaged in the pair of ¦ opposed mounting grooves 35. Lying exteriorly of t.he first outdoor sealing band 6, the second outdoor sealing band 7 coacts therewith to define a space 45 which is closed on each ¦ side by the two heat insulating connectors 30 and 31, The second outdoor sealing band 7 also takes the form of a truss, having a plurality of hollows 7a of triangular ¦ cross section extending longitudinally therethrough in suitable ¦ relative arrangement, The width h5 of this second outdoor ¦ sealing band-is..less than the distance h6 between the bottoms ¦ 35a of the pair of opposed mounting grooves 35.
¦ With the gap G between every two opposed side frame ¦ members 1 closed as above by the three sealing bands 5, 6 and ¦ 7 with the two intervening closed spaces, the conditioned ¦ indoor air is not to escape through the gap, Further the heat energy that has transferred from the side frame members 1 -to the closed gap G therebetween can be conserved therein. This closed gap is further insula-ted from the outdoors by the additional closed space 45 defined be-tween the first and second outdoor sealing bands 6 and 7. Accordinyly the loss of the heat energy through the gap is reduced to an absolute minimum.
-- lU --FIG. 3 is further illustrative of the way in which each pane of double glazing C2 is peripherally supported by each side frame member l. The supporting means include an exterior sealing strip 39 engaged in an undercut groove 38 in the retainer strip 32 and held against the exterior face of the double glazing C2. An interior sealing strip 49, held against the interior face of the double glazing C2, is engaged in an undercut groove 50 in a spacer 48 which in turn is engaged between the pair of ridges 12c on the exterior end wall 12 of the side frame m~nber 1.
FIG. 4 is explanatory of the operating principles of the sealing bands 5, 6 and 7, with the second outdoor sealing band 7 taken as an example. As has been stated, each sealing band has elasticity and so allows the two neighboring curtain wall units to be displaced toward each other even after the . sealing band has become bottomed in the pair of opposed mount-ing grooves. Thus, in FIG, 4, the difference between the width h5 of the representative sealing band 7 and the distance h6 between the bottoms 35a of the mounting grooves 35 can be made less than the distance ~1 between the opposed ends 32' of the two adjacent retainer grooves 32. To turn this statement around is to say that the sum of the distances Sl and S2 between the ends of the sealing band 7 and the bottoms 35a of the mounting grooves 35 can be less than the distance I,l.
Thus the depth of each mounting groove 35 can be far less than that of the groove d in the prior art tongue~and-groove joint of FIG. l.
~ 3~
The foregoing will have made clear that the dimension of each side frame member 1 in the depth direction of the mounting grooves therein can be reduced to make -the width of the respective side frame member 1 of the individual curtain wall units minimum. The narrower side frame members make it possible to correspondingly increase the width of the openings Bl and B2 in each curtain wall unit A.
Depicted in FIG. 5 is an alternative form of sealing band 5, 6, 7. The alternative sealing band is made thicker at its lateral marginal edge portions 51 than at its central portion 52. Each thicker edge portion 51 has one or more hollows 53 extending longitudinally therethrough.
FIG. 6 illustrates another alternative form of sealing band 5, 6, 7~ The second alternative sealing band has a plurality of ridges 54 formed on both surfaces of each lateral marginal edge portion 55, Further the sealing band has one or more hollows 56 formed longitudinally through its relatively thin central portion 57. A similar hollow or hollows could be formed in the central portion 52 of the s~aling band of FIG. 5.
The alternative sealing bands of FIGS. 5 and 6 offer the advantage of being more elastic, more readily absorbing the relative displacement of the curtain wall units in their own plane, Although the invention has been described in detail as applied to a unit type curtain wall assembly with a built-in temperature control system, it is understood that the inven-tion finds application to unit type curtain wall assemblies having ~ L~
no such temperature control system. Various modifications of the illustrated embodiments may therefore be made within the broader scope due to the invention,
6 is also in the form of a truss, having a plurality of hollows 6a of triangular cross section formed longitudinally therethrough in suitable relative arrangement. The width h3 of the first outdoor sealing band 6 is less than the distance _~ between the bottoms l9a of the pair of opposed mounting yrooves 19.
Also defined in the end wall 16_ of the mount 16 are two mounting yrooves 20 and 21 which are both open exteriorly of the unit type curtain wall assembly. The junction of the end wall 16b and side wall 16C is thickened inwardly to provide a screw hole 22. The exterior end wall 12 of the side frame member 1 has a portion 12a leE-t exposed by the mount 16. This exposed portion of the exterior end wall has a pair of parallel spaced ridges 12c defining an undercut groove for a purpose yet to he described.
A retainer strip 32 is secured as by countersunk screws 33 to the end wall 16~D of the mount 16 of each side frame member 1 via connectors 30 and 31 of thermal insulating material. The retainer strip 32 has an L-shaped flange 34 directed interiorly therefrom and having formed therein two mounting grooves 36 and 37 in opposed relation to the mounting grooves 20 and 21 in the end wall 16_ of the mount 16. The heat insulating connector 30 is of approximately square shaped cross section, recessed along one corner for engagement with the ~-shaped flange 3~. The o-ther heat insula-ting connector 31 -takes -the form of a thin strip having its opposite marginal edge portions snugly fitted in the mounting groove 20 in the mount 16 and in -the mountinq groove 36 in the L-shaped flange 34.
The retainer strip 32 coates with the L-shaped flange 34 to define a mounting groove 35 opposed to the other similar mounting ~roove 35 associated with the neighboring side frame member 1. The aforementioned second outdoor sealing band 7 has its lateral marginal edge portions engaged in the pair of ¦ opposed mounting grooves 35. Lying exteriorly of t.he first outdoor sealing band 6, the second outdoor sealing band 7 coacts therewith to define a space 45 which is closed on each ¦ side by the two heat insulating connectors 30 and 31, The second outdoor sealing band 7 also takes the form of a truss, having a plurality of hollows 7a of triangular ¦ cross section extending longitudinally therethrough in suitable ¦ relative arrangement, The width h5 of this second outdoor ¦ sealing band-is..less than the distance h6 between the bottoms ¦ 35a of the pair of opposed mounting grooves 35.
¦ With the gap G between every two opposed side frame ¦ members 1 closed as above by the three sealing bands 5, 6 and ¦ 7 with the two intervening closed spaces, the conditioned ¦ indoor air is not to escape through the gap, Further the heat energy that has transferred from the side frame members 1 -to the closed gap G therebetween can be conserved therein. This closed gap is further insula-ted from the outdoors by the additional closed space 45 defined be-tween the first and second outdoor sealing bands 6 and 7. Accordinyly the loss of the heat energy through the gap is reduced to an absolute minimum.
-- lU --FIG. 3 is further illustrative of the way in which each pane of double glazing C2 is peripherally supported by each side frame member l. The supporting means include an exterior sealing strip 39 engaged in an undercut groove 38 in the retainer strip 32 and held against the exterior face of the double glazing C2. An interior sealing strip 49, held against the interior face of the double glazing C2, is engaged in an undercut groove 50 in a spacer 48 which in turn is engaged between the pair of ridges 12c on the exterior end wall 12 of the side frame m~nber 1.
FIG. 4 is explanatory of the operating principles of the sealing bands 5, 6 and 7, with the second outdoor sealing band 7 taken as an example. As has been stated, each sealing band has elasticity and so allows the two neighboring curtain wall units to be displaced toward each other even after the . sealing band has become bottomed in the pair of opposed mount-ing grooves. Thus, in FIG, 4, the difference between the width h5 of the representative sealing band 7 and the distance h6 between the bottoms 35a of the mounting grooves 35 can be made less than the distance ~1 between the opposed ends 32' of the two adjacent retainer grooves 32. To turn this statement around is to say that the sum of the distances Sl and S2 between the ends of the sealing band 7 and the bottoms 35a of the mounting grooves 35 can be less than the distance I,l.
Thus the depth of each mounting groove 35 can be far less than that of the groove d in the prior art tongue~and-groove joint of FIG. l.
~ 3~
The foregoing will have made clear that the dimension of each side frame member 1 in the depth direction of the mounting grooves therein can be reduced to make -the width of the respective side frame member 1 of the individual curtain wall units minimum. The narrower side frame members make it possible to correspondingly increase the width of the openings Bl and B2 in each curtain wall unit A.
Depicted in FIG. 5 is an alternative form of sealing band 5, 6, 7. The alternative sealing band is made thicker at its lateral marginal edge portions 51 than at its central portion 52. Each thicker edge portion 51 has one or more hollows 53 extending longitudinally therethrough.
FIG. 6 illustrates another alternative form of sealing band 5, 6, 7~ The second alternative sealing band has a plurality of ridges 54 formed on both surfaces of each lateral marginal edge portion 55, Further the sealing band has one or more hollows 56 formed longitudinally through its relatively thin central portion 57. A similar hollow or hollows could be formed in the central portion 52 of the s~aling band of FIG. 5.
The alternative sealing bands of FIGS. 5 and 6 offer the advantage of being more elastic, more readily absorbing the relative displacement of the curtain wall units in their own plane, Although the invention has been described in detail as applied to a unit type curtain wall assembly with a built-in temperature control system, it is understood that the inven-tion finds application to unit type curtain wall assemblies having ~ L~
no such temperature control system. Various modifications of the illustrated embodiments may therefore be made within the broader scope due to the invention,
Claims (7)
1. A unit type curtain wall assembly having a plurality of standardized curtain wall units of rectangular shape each including a pair of side frame members, with a predetermined gap between the opposed side frame members of every two horizontally adjoining curtain wall units, wherein the improvement comprises:
(a) means defining at least one pair of opposed mounting grooves of a predetermined depth extending longitudinally in the opposed side frame members of every two horizontally adjoin-ing curtain wall units; and b) a sealing band of elastic material closing the gap between the opposed side frame members of every two horizontally adjoining curtain wall units by having lateral marginal edge portions thereof engaged in the pair of opposed mounting grooves, the sealing band having a width less than the distance between the bottoms of the pair of opposed mounting grooves.
(a) means defining at least one pair of opposed mounting grooves of a predetermined depth extending longitudinally in the opposed side frame members of every two horizontally adjoin-ing curtain wall units; and b) a sealing band of elastic material closing the gap between the opposed side frame members of every two horizontally adjoining curtain wall units by having lateral marginal edge portions thereof engaged in the pair of opposed mounting grooves, the sealing band having a width less than the distance between the bottoms of the pair of opposed mounting grooves.
2. The unit type curtain wall assembly of claim 1 wherein the sealing band has a plurality of hollows of tri-angular cross section formed longitudinally therethrough, the hollows being so arranged that the sealing band takes the form of a truss.
3. The unit type curtain wall assembly of claim 1 wherein the sealing band is made thicker at the lateral marginal edge portions thereof than at a central portion thereof, each lateral marginal edge portion having at least one hollow formed longitudinally therethrough.
4. The unit type curtain wall assembly of claim 1 wherein the sealing band has a plurality of ridges on both surfaces of each lateral marginal edge portion thereof.
5. The unit type curtain wall assembly of claim 4 wherein the sealing band has at least one hollow formed longi-tudinally through a central portion thereof.
6. The unit type curtain wall assembly capable of room temperature control, comprising:
(a) an array of standardized curtain wall units of rectangular shape, each curtain wall unit including a pair of side frame members each having formed therethrough a first passageway for one heat transfer fluid and a second passageway for another heat transfer fluid;
(b) there being a predetermined gap between the opposed side frame members of every two hori-zontally adjoining curtain wall units;
(c) there being first and second pairs of opposed mounting grooves of a predetermined depth extending longitudinally in the opposed side frame members of every two horizontally adjoin-ing curtain wall units;
(d) an indoor sealing band of elastic material closing the gap between the opposed side frame members of every two horizontally adjoining curtain wall units on the indoor side thereof by having lateral marginal edge portions thereof engaged in the first pair of opposed mounting grooves in the side frame members, the indoor sealing band having a width less than the dis-tance between the bottoms of the first pair of opposed mounting grooves;
(e) a first outdoor sealing band of elastic material closing the gap between the opposed side frame members of every two horizontally adjoining curtain wall units on the outdoor side thereof by having lateral marginal edge portions thereof engaged in the second pair of opposed mounting grooves in the side frame members, the first outdoor sealing band having a width less than the distance between the bottoms of the second pair of opposed mounting grooves;
(f) heat insulating connector means on the outdoor side of each side frame member;
(g) a retainer strip secured to each side frame member via the heat insulating connector means, the retainer strips on the opposed side frame members of every two horizontally adjoining curtain wall units defining a third pair of opposed mounting grooves of a predetermined depth; and (h) a second outdoor sealing band disposed exteriorly of the first outdoor sealing band and having lateral marginal edge portions thereof engaged in the third pair of opposed mounting grooves to provide a closed space between the first and second outdoor sealing bands, the second outdoor sealing band having a width less than the distance between the bottoms of the third pair of opposed mounting grooves,
(a) an array of standardized curtain wall units of rectangular shape, each curtain wall unit including a pair of side frame members each having formed therethrough a first passageway for one heat transfer fluid and a second passageway for another heat transfer fluid;
(b) there being a predetermined gap between the opposed side frame members of every two hori-zontally adjoining curtain wall units;
(c) there being first and second pairs of opposed mounting grooves of a predetermined depth extending longitudinally in the opposed side frame members of every two horizontally adjoin-ing curtain wall units;
(d) an indoor sealing band of elastic material closing the gap between the opposed side frame members of every two horizontally adjoining curtain wall units on the indoor side thereof by having lateral marginal edge portions thereof engaged in the first pair of opposed mounting grooves in the side frame members, the indoor sealing band having a width less than the dis-tance between the bottoms of the first pair of opposed mounting grooves;
(e) a first outdoor sealing band of elastic material closing the gap between the opposed side frame members of every two horizontally adjoining curtain wall units on the outdoor side thereof by having lateral marginal edge portions thereof engaged in the second pair of opposed mounting grooves in the side frame members, the first outdoor sealing band having a width less than the distance between the bottoms of the second pair of opposed mounting grooves;
(f) heat insulating connector means on the outdoor side of each side frame member;
(g) a retainer strip secured to each side frame member via the heat insulating connector means, the retainer strips on the opposed side frame members of every two horizontally adjoining curtain wall units defining a third pair of opposed mounting grooves of a predetermined depth; and (h) a second outdoor sealing band disposed exteriorly of the first outdoor sealing band and having lateral marginal edge portions thereof engaged in the third pair of opposed mounting grooves to provide a closed space between the first and second outdoor sealing bands, the second outdoor sealing band having a width less than the distance between the bottoms of the third pair of opposed mounting grooves,
7. The unit type curtain wall assembly of claim 6 wherein the first passageway in each side frame member of each curtain wall unit is for conditioning air and occupies a major portion of the side frame member, and wherein the second passageway in each side frame member is for a hot or cold water and lies interiorly of the first passageway in side-by-side relation to one of the first pair of opposed mounting grooves.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JPSHO57-121497 | 1982-08-10 | ||
| JP1982121497U JPS5924818U (en) | 1982-08-10 | 1982-08-10 | Mulled part of unit type curtain wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1194668A true CA1194668A (en) | 1985-10-08 |
Family
ID=14812635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000434148A Expired CA1194668A (en) | 1982-08-10 | 1983-08-09 | Mullion portion in a unit type curtain wall |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5924818U (en) |
| KR (1) | KR870000534Y1 (en) |
| CA (1) | CA1194668A (en) |
| GB (1) | GB2127877A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5924049A (en) * | 1982-08-02 | 1984-02-07 | ワイケイケイ株式会社 | Shaping material for building |
| GB2160911A (en) * | 1984-04-28 | 1986-01-02 | Ward Brothers | Mounting assembly |
| GB2160910A (en) * | 1984-04-28 | 1986-01-02 | Ward Brothers | Building frame with panel infill |
| DE3445071A1 (en) * | 1984-12-11 | 1986-06-19 | P. Schulte-Stemmerk KG für Industrie und Handel, 4100 Duisburg | Waterproof covering for a floor expansion joint |
| GB2172911B (en) * | 1985-03-30 | 1988-09-01 | James Alan Macey | Curtain walling |
| DE4022528A1 (en) * | 1990-07-16 | 1992-01-23 | Mbs Gemont Ag | CURTAINED FACADE IN ELEMENT DESIGN |
| CN102444227A (en) * | 2011-09-20 | 2012-05-09 | 沈阳远大铝业工程有限公司 | Waterproof heat insulation unit type curtain wall |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE795791A (en) * | 1972-03-25 | 1973-06-18 | Roehm Gmbh | JOINTED PLATE WITH HOLLOW PROFILE |
| JPS5130367A (en) * | 1974-09-06 | 1976-03-15 | Hitachi Ltd | ATSURYOKUKAI HEIKI |
-
1982
- 1982-08-10 JP JP1982121497U patent/JPS5924818U/en active Pending
-
1983
- 1983-08-09 CA CA000434148A patent/CA1194668A/en not_active Expired
- 1983-08-09 KR KR2019830007003U patent/KR870000534Y1/en not_active IP Right Cessation
- 1983-08-10 GB GB08321488A patent/GB2127877A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB2127877A (en) | 1984-04-18 |
| KR840006186U (en) | 1984-11-30 |
| GB8321488D0 (en) | 1983-09-14 |
| JPS5924818U (en) | 1984-02-16 |
| KR870000534Y1 (en) | 1987-02-19 |
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