CA1061694A - Method and arrangement for installation of ribbon-type enclosing structures - Google Patents
Method and arrangement for installation of ribbon-type enclosing structuresInfo
- Publication number
- CA1061694A CA1061694A CA253,419A CA253419A CA1061694A CA 1061694 A CA1061694 A CA 1061694A CA 253419 A CA253419 A CA 253419A CA 1061694 A CA1061694 A CA 1061694A
- Authority
- CA
- Canada
- Prior art keywords
- ribbon
- girders
- housing
- crimping
- bending
- 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
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/22—Connection of slabs, panels, sheets or the like to the supporting construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D15/00—Apparatus or tools for roof working
- E04D15/06—Apparatus or tools for roof working for handling roofing or sealing material in roll form
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/36—Connecting; Fastening
- E04D3/361—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets
- E04D3/364—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets by folding of the edges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/36—Connecting; Fastening
- E04D3/366—Connecting; Fastening by closing the space between the slabs or sheets by gutters, bulges, or bridging elements, e.g. strips
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Automatic Assembly (AREA)
- Tents Or Canopies (AREA)
Abstract
METHOD AND ARRANGEMENT FOR INSTALLATION
OF RIBBON-TYPE ENCLOSING STRUCTURES
Abstract of the Disclosure The invention comprises bending longitudinal edges of coiled ribbons toward the board elements of girders and drawing the ribbons over these elements wit subsequent fixing of bent edges thereto. Then the ribbons are tensioned lengthwise, and the bent edges are crimped around the board elements of the girders.
The arrangement for effecting this method installa-tion comprises a coiled ribbon mounted in an uncoiling means a bending mechanism for shaping the ribbon to obtain a profi le corresponding to the shape of the board elements of gir-ders, and means for crimping the bend edges of the ribbon.
The bending mechanism receiving the ribbon from the coil comprises a rigid frame disposed beneath the ribbon drawn between two adjacent girders which are rigidly connected to a pair of bilaterally symmetrical bending heads mounted to both end faces of the frame. Means for crimping the bent edges of the ribbon comprises a housing having a crimping head, the housing being connected to both ends of a cross--piece movably mounted to the girder. One of the ends of the cross-piece is articulated to the housing and the other end thereof is connected to the housing by means of a clam-ping member.
The invention may be the most efficiently used in in-dustrial construction and civil engineering for making walls ceilings and roofing.
OF RIBBON-TYPE ENCLOSING STRUCTURES
Abstract of the Disclosure The invention comprises bending longitudinal edges of coiled ribbons toward the board elements of girders and drawing the ribbons over these elements wit subsequent fixing of bent edges thereto. Then the ribbons are tensioned lengthwise, and the bent edges are crimped around the board elements of the girders.
The arrangement for effecting this method installa-tion comprises a coiled ribbon mounted in an uncoiling means a bending mechanism for shaping the ribbon to obtain a profi le corresponding to the shape of the board elements of gir-ders, and means for crimping the bend edges of the ribbon.
The bending mechanism receiving the ribbon from the coil comprises a rigid frame disposed beneath the ribbon drawn between two adjacent girders which are rigidly connected to a pair of bilaterally symmetrical bending heads mounted to both end faces of the frame. Means for crimping the bent edges of the ribbon comprises a housing having a crimping head, the housing being connected to both ends of a cross--piece movably mounted to the girder. One of the ends of the cross-piece is articulated to the housing and the other end thereof is connected to the housing by means of a clam-ping member.
The invention may be the most efficiently used in in-dustrial construction and civil engineering for making walls ceilings and roofing.
Description
METHOD AND ARRANGEMENT FOR INSTALLATIQN
OF RIBBON-TYPE ENCLOSING STRUCTURES
,, ,.'`
The invention relates to the construction industry, and more particularly to a method and arrangement for instal-lation of ribbon-type enclosing structures. The invention may be widely used in the construction of industrial buildings and in civil engineering for installation of walls, ceilings and roofing. ~`
In constructing general-purpose buildings, and especially '~ industrial buildings, the installation operations are of primary importance in the construction technique. The level of mechanization of installation operations at the building site is vital for labour productivity, construc-tion costs and labour conditions. These fig;ures largely .j ,.
depend on how the problem of mechanization of installation `, operations is solved. Successful solutuion of this problem ` enables material reduction of construction time and cost.
,, :
! Two types of enclosing structures are used in the I building industry: panel and ribbon-type struc-tures. Recently I the enclosing structures~;of coiled ribbons are coming ;1 into a widespread use because they permit threefold reduc-i tion of metal consumption per 1 m of ceiling surface and ` twofold cost reduction per 1 m of enclosure; besides, they are easily transported which is very important for construc-tion operations in remote areas.
' ." . .
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' Installation of ribbon-type enclosing structures may be effected in different ways. In particular, one known met-hod of installation of enclosing structures, such as of suspended ceilings consists in lifting an end of a coiled ~ `~
aluminium ribbon mounted in an uncoiling means up to a design altitude (19-20 m), placing it around a guide roller, direc~
ting to the board elements of girders and drawing thereover to extend along the entire length of the building. Con-currently with the drawing operation, the surfaces of the board elements of the girders and ribbon edges are degreased to provide for an appropriate quality of spot welding. To prevent the ribbon from sliding off the board elements of the girders, temporary support bars are mounted therebetween ;~ ;. ~
at 3 m spacing. Tensioning means are secured to the ends of .
, the ribbon extending along the entire length of the building. `
and the tensioning means are used to tension the ribbon to `
a stress of lO0 to 150 kg/cm . Then the support bars are 'f ~ :
removed, and the ribbon is fixed to the boards of the girders ~ ~
. . :- ~ .
by argonarc spot welding. -~
The above-described fastening of the ribbon to a girder exhibits an important disadvantage. As a result of local -stress concentration appearing at the weld spots due to the metal heating the ribbon is deformed thus unsealing the joints and deteriorating the external appearance of the structure.
:. .
. .
i: .
.
, At present the installation of suspended ceilings is , effected in accordance wi-th the above-described technique '~
with the only dif`f`erence that the ribbon is fastened to the board elements of the girders by riveting. This method of ~astening allowed to eliminate partially the above disad-S vantages. `
It should be, however noted that this method also has a number of material disadvantages, and namely: ' , (a) installation and subsequent removal of support bars for f'ixing the ribbon to the board elemen-ts of girders; "
(b) drilling holes for rivets in inconvenient position and at high altitude (19-20 m); ,-'i "~ (c) insertion of` rivets; ~', (d? riveting while supporting the ribbon from beneath j at an altitude and in the position in which the operator '~
holding a riveting hammer and the operator holding a rivet-ing dolly are separated by the ribbon web.
Repeated shutter movements during the accomplishment ,' ~ of all operations along the entire length of the building i,~
', ` (passage along the building during the drawing and installa- '' tion of bars, removal of the bars after -the ribbon tension-ing, drilling for rivets, riveting) require four passes per , ,' ribbon. , ' ~ A Iarge number of` effort-consuming manual operations ',, i in combination with an elevated danger of works do,not '~
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, - 3 ~ "-- ,;~ i,;"'.~,'' , , ,, ., ", , .. ., . ' - ,',. ' ' '', ~''-~ ',, ,' ' ,' , permit the installation to be comprehensively mechanized.
. :. .:
- Therefore, the methods of installation of ribbon-type enclo- .;
sing structures known heretofore have a number of disadvan-tages which restrict their application.
Known in the art are various arrangements for inb-balla- ;~
. ~ .; .
tion of enclosing structures.
One arrangement of this type is disclosed in French .. ..
patent No. 2105153, Cl. E 04 f. The arrangement is designed ,,~
for interconnection of metal members by machining the mutually engaging surfaces by means of a roller working member.
The housing of the arrangement is inserted into a , profiled element which is preliminarily installed in a gir- :~
der and is fixed therein, whereafter a lever of a roller wor-" king member is rotated to expand the profiled member so as , to ensure its rigid locking within the girder.
;f It should be noted that this arrangement does not enable ,;~ ;~ :.. , '~! mechanization of fastening profiled members to a girder. L ~ `
; - ~ .
'! In addition, the use of this arrangement for installation , of enclosing structures would not permit the production !" process to be intensified.
~', Known in the art is an arrangement for erection of silo !', bodies out of coiled ribbon comprising a coiled ribbon moun-ted in an uncoiling means which is fed to a bending mechanism ~.
~i~,for folding the ribbon, and means for crimping the folded , rl edges of the ribbon.
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However this arrangement is stationary and cannot be operated at an altitude of 19-20 m and higher which is cha-racteristic of operations associated with installation o-f enclsing structures. Moreover, means for crimping the ribbon ~.
edges is not movable so -that the use of this means is limited The arrangement cannot ensure the accomplishment of all opera- -tions of installations of ribbon-type enclosing structures.
The main object of the invention is to improve the method of installation of ribbon-type enclosing structures for auto-mating the fastening of the ribbon to the board elements of girders and to provide an arrangement for effecting the~
method.
Another object of the invention is to reduce manual la-bour for installation.
Still another object of the invention is to reduce installation time and to ensure safety of labour conditions.
These and other obJ,ects are accomplished by that in a method of installation of ribbon-type enclosing structures comprising drawing coiled ribbons over the board elements ~
of girders with concurrent fixing thereof to said elements, ~`
tensioning the ribbons lengthwise and fastening them along the entire length of the girders, according to the invention .`
prior to the drawing of the coiled ribbons, longitudinal edges -thereof are bent toward the board elements of the girders and the bent edges of the ribbons are fixed, whereafter .
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the ribbon edges are crimped around the board elements of the girders. ;
In an arrangement for installation of ribbon-type enclosing structures comprising a coiled ribbon mounted in an uncoiling means and fed to a bending mechanism for shaping the ribbon to obtain a profile corresponding to the shape of the board elements of the girders, and means for crimping .
the bent edges of the ribbon, according to the inven-tion, .: .: . .
the bending mechanism comprises a rigid frame disposed beneath the ribbon drawn between two adjacent girders which are rigidly connected to bilaterally symmetrical bending heads -mounted to both ends of the frame, and means -for crimping the bent edges of the ribbon comprises a housing having a crimping head, the housing being connected to both ends of a cross-piece movable mounted to the girder so that one end of the housing is a~ticulated to one end of the cross-piece and is connected to the other end thereof by means of a f :.
~, clamping member. .~
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1 The bending head preferably comprises two spring-fl loaded parts accommodating at least three pairs of driven rollers, the axes of two adjacent pairs of rollers extending ~1~ in parallel with~one another and the axes of the third pair 'I of rollers extending at an angle to each other.
1 The driven rollers of the bending head should be profi- ;~
'~ led.
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The crimping head may have two pairs of driven rollers embracing the board elements of -the girders, the rollers axes, extending in parallel with one another.
The driven rollers of the crimping head are spring-loaded and profiled.
The invention consists in the following.
During installation of ribbon-type enclosing structures, a ribbon which is mounted in an uncoiling means, is lifted with one end thereof up to the altitude or girders and fed in the bending mechanism in which longitudinal edges of the ribbon are bent toward the board elements of the girders in such a manner that the bent edges of the ribbon should be shaped to correspond to the outer profile of the board elements of the girders. ~, The ribbon with the bent edges is placed onto the board elements of two adjacent girders and is supported thereon without sla~kening due to the bent edges. .,~!
Thus the ribbon is fixed relative to the girders.
In this position, the ribbon, which slides over the girder with the bent edges thereof, is drawn along the entire length of the building. Then tensioning means are ',r secured to both ends of the ribbon to tension -thereof.
~ .. . .
The tensioned ribbon which is fixed to the board ele~
ments of the girders with the bent edges thereof (the struc- , tural arrangement of the board elements may vary, but in -:
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any case the girders should have round or bulbed bosses at the ends) is crimped around the board elements thus ensuring ~-a strong and sealed fastening of the ribbon to the girders.
Due to the construction of the arrangement consisting of -, .: .:
the bending mechanism and means for crimping the bent edges ..
of the ribbon the edges of the ribbon can be first bent , .
and then crimped around the board elements of the girders .-by using units mounted in series. `
The provision of two bilaterally symmetrical bending ,~'': ':
heads in the bending mechanism which are mounted to the ends ~ -of the rigid frame arranged between two adjacent girders beneath the ribbon being drawn enables concurrent bending , .
of both edges of the ribbon and immediate placing thereof onto the board elements of the girders, whereby the ribbon 't.-is automatically fixed to the girders.
Crimping the ribbon around the board elements of the ;,.
girders determines high qualit'y of fastening as compared to the ribbon fastening by riveting or spot welding.
Structural arrangement of means for crimping the bent edges of ribbon in the form of crimping head connected.
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via the housing, to both ends of the cross-piece movably ;
mounted to the girder enables continuous crimping of the ,~
ribbon during the displacement thereof over the board elements of the girder.
The provision of the bending head consis-ting of two -, .
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parts accommodating at least three pairs of shaped rollers which are arranged in such a manner that the axes of two .
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adjacent pairs of rollers extend in parallel with one another and the axes of the third pair or roller extend at an angle to each other enables the bending of longitudinal edges of the ribbon to obtain a profile corresponding to the shape of the board elements of the girders, and the opportunity of displacing the heads relative to the girders makes it pos~
sible to bring the bent edges in register with the board ..
elements.
Due to the fact that the crimping head is provided with two pairs of profiled rollers embracing the board ele- .
ments of the girder, the roller axes extending in parallel wi-th one another, there is an opportunity of tight crimping of the bent edges of ribbon around the board element of the girder. .
As the bending heads and the rollers of the crimping ~. : .
head are spring-loaded, both edges of the ribbon having dif- ~ :
ferent thickness may be bent and crimped thus enlarging ~.... .
the range of ribbons suitable for installation of enclosing ` ~
structures. .. . :
Therefore, the method and arrangement for installation j:
or ribbon-type structures according to the invention enable .~ .
automation of labour-consuming operations of fixing and . :~.
, .. .
fastening the ribbon to the girders thus making possible ?,"
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installation time reduction lowering the cost of operations and improving labour conditions. . ~ ~
Other objects and advantagesiof the invention will '.; :: .
become apparent from the following detailed description ;' of specific embodiments thereof illustrated in the accompany-ing drawings, in which: ;
Figure 1 diagrammatically illustrates the lifting and .
drawing of ribbon over the board elements of girders;
Figure 2 shows the step of bending the ribbon edges toward the inner surface of the board elements;
Figure 3 shows the step of crimping the bent edges .:
of the ribbon around the board elements of girders;
Figure 4 is an arrangement for effecting the method ~.
according to the invention shown within the installation `~
opening of a building shown in a longitudinal section;
Figure S is the same view as in Fig. ~, but the building is shown in transverse section; `.
Figure 6 is a general view of the bending mechanism; :
Figure 7 is a side elevation of the bendlng head;
Figure 8 illustrates the operation sequence of the ::
driven rollers of the bending mechanism during the bending of longitudinal edges of the ribbon; ii:
, Figure 9 shows the bending mechanism arranged within 3 the installation opening of a building which is shown in ¦ a longitudinal section;
3 Figure 10 is a general view of means for crimping the ,. ' ' ' .
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, 1~ 4 bent edges of ribbon;
Figure 11 is a sectional view taken along the line XI-XI in Figure 10.
The method for ins-tallation of ribbon-type enclosing structures according to the invention uses a coiled ribbon ' 1 mounted in an uncoiling means 2 (Figure 1) and lifted by ~`
means of a preliminarily secured tensioning member 3 to a bending mechanism 4 for bendinglongitudinal edges 5 o,f the ribbon 1 toward board elements 6 of girders ,7 (Figure 2).
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The ribbon l with the bent edges 5-leaving the bending mec-hanism ~ is placed onto the board elements 6 of the two ,`
adjacent girders 7 to which it is fixed against slackening ?
and sliding during the drawing over the girders along the entire length of the building. A second tensioning member identical to the f`irst tensioning member 3 is secured to the other , end of the ribbon 1 drawn along the entire length of the building, and the ribbon is tensioned. Then the bent edges ~ ~-5 of the ribbon 1 are crimped around the board elements 6 of ' -the girders 7 (Figure 3) using a crimping means 8. ;;
The reference is now made to a specific example of ins-tallation of suspended ceiling using a coiled ribbon of alu- i~
minium alloy. The ribbon thickness is 1 mm. The board element `~
6 of the girder 7 is shaped as a round section member of 13 Y-.. . . .
mm diameter. Crimping of bhe bent edges 5 around the board l elements 6 is effected through an angle equal to 270 . The --"~ .j,,'~:.'` ;.
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ribbon fas-tened in this manner withstands loads of up to 1100 kg per one meter of length. By conventional method using rivets for fastening the ribbon to the girders, maximum loads applied to the rivet fasteners were up to 700 kg.
Therefore, t~e comparison of physical and mechaniaal ,~
properties of the ribbon-type enclosure shows that the strength of fastening in accordance with the method of the ~
invention is 1.5 times greater. ~`
The above-described example illustrates high strength ;
of fastening of the ribbon to the girder and efficiency of . ' . . .
I the method according to the invention.
The arrangement for effecting the method according to ~ -., j .
the invention comprises the bending mechanism 4 (Figure 6) which is stationary mounted on two adjacent girders 7 within the installation opening of the building which is designed for performing the embedding of the ribbon ends and for , being closed with panels aftewards, and means 8 for crimping }, ,. .: .
the bent edges of the ribbon l (Figure lO)~. The bènding mec- ~ -hanism 4 comprises a ribid frame~ 9 having a drive 10 located in the central portion thereof which is of any appropriate construction. Bilaterally symmetrical bending heads 11 (Figure r, 7) are mounted to the ends of the frame 9 and connected to the drive by means of a universal joint link 12. The ben-ding head ll consists of two parts which are made in the form of partially open bodies urged against each other by ~,, .
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means of Belville springs73 and accommodate profiled rollers 14 which are cantilevered on their shafts outside the bending head 11 and are directed toward -the drive 10. The bending head 11 is provided with at least three pairs of the rollers , .
14 which are arranged in such a manner that the axes of two ;-adjacent pairs of the rollers 14 extend in parallel with one ' another, and the axes of the third pair of rollers extend at ~,c;
an angle to each other. A gearj15 is fitted on each shaft ~,i;
within the bodies. Only one inclined roller is not connected !` ~'` . ;
to the drive.
All shafts are journalled in bearings 16. ;~
In order -to provide for accurate positioning of the bent ~;' edges of the ribbon relative to the board elements of the girders, the bending heads 11 are displaceable along the frame !j 9 and can be fixed by means of a bolt joint.
The urgin~ force of the bending heads is adjusted by means of a nut 17 so that ribbons of different thickness may be used. ~ ~ -Means 8 for crimping the bent edges of the ribbon 1 (Figure 10) comprises a housing having a crimping head 18 which i~
accommodates a reducing gear connected to an electric motor by means of a clutch, and one pair of profiled rollers ~;
19 mounted on either side of a gear 20 fitted on the central portion of a shaft 21 journalled in bearings 22.
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A cross-piece 23 is mounted to the girder 7, and the cross piece is connected to the housing with both ends the- , reof, one end of the cross-piece being articulated to the ,.
housing and the other end, which is on the side of a second .
pair of the profiled rollers 19 mounted on the cross-piece 23, is connected to the housing by means of a clamping member
OF RIBBON-TYPE ENCLOSING STRUCTURES
,, ,.'`
The invention relates to the construction industry, and more particularly to a method and arrangement for instal-lation of ribbon-type enclosing structures. The invention may be widely used in the construction of industrial buildings and in civil engineering for installation of walls, ceilings and roofing. ~`
In constructing general-purpose buildings, and especially '~ industrial buildings, the installation operations are of primary importance in the construction technique. The level of mechanization of installation operations at the building site is vital for labour productivity, construc-tion costs and labour conditions. These fig;ures largely .j ,.
depend on how the problem of mechanization of installation `, operations is solved. Successful solutuion of this problem ` enables material reduction of construction time and cost.
,, :
! Two types of enclosing structures are used in the I building industry: panel and ribbon-type struc-tures. Recently I the enclosing structures~;of coiled ribbons are coming ;1 into a widespread use because they permit threefold reduc-i tion of metal consumption per 1 m of ceiling surface and ` twofold cost reduction per 1 m of enclosure; besides, they are easily transported which is very important for construc-tion operations in remote areas.
' ." . .
.1 ~ ',: ~.
' Installation of ribbon-type enclosing structures may be effected in different ways. In particular, one known met-hod of installation of enclosing structures, such as of suspended ceilings consists in lifting an end of a coiled ~ `~
aluminium ribbon mounted in an uncoiling means up to a design altitude (19-20 m), placing it around a guide roller, direc~
ting to the board elements of girders and drawing thereover to extend along the entire length of the building. Con-currently with the drawing operation, the surfaces of the board elements of the girders and ribbon edges are degreased to provide for an appropriate quality of spot welding. To prevent the ribbon from sliding off the board elements of the girders, temporary support bars are mounted therebetween ;~ ;. ~
at 3 m spacing. Tensioning means are secured to the ends of .
, the ribbon extending along the entire length of the building. `
and the tensioning means are used to tension the ribbon to `
a stress of lO0 to 150 kg/cm . Then the support bars are 'f ~ :
removed, and the ribbon is fixed to the boards of the girders ~ ~
. . :- ~ .
by argonarc spot welding. -~
The above-described fastening of the ribbon to a girder exhibits an important disadvantage. As a result of local -stress concentration appearing at the weld spots due to the metal heating the ribbon is deformed thus unsealing the joints and deteriorating the external appearance of the structure.
:. .
. .
i: .
.
, At present the installation of suspended ceilings is , effected in accordance wi-th the above-described technique '~
with the only dif`f`erence that the ribbon is fastened to the board elements of the girders by riveting. This method of ~astening allowed to eliminate partially the above disad-S vantages. `
It should be, however noted that this method also has a number of material disadvantages, and namely: ' , (a) installation and subsequent removal of support bars for f'ixing the ribbon to the board elemen-ts of girders; "
(b) drilling holes for rivets in inconvenient position and at high altitude (19-20 m); ,-'i "~ (c) insertion of` rivets; ~', (d? riveting while supporting the ribbon from beneath j at an altitude and in the position in which the operator '~
holding a riveting hammer and the operator holding a rivet-ing dolly are separated by the ribbon web.
Repeated shutter movements during the accomplishment ,' ~ of all operations along the entire length of the building i,~
', ` (passage along the building during the drawing and installa- '' tion of bars, removal of the bars after -the ribbon tension-ing, drilling for rivets, riveting) require four passes per , ,' ribbon. , ' ~ A Iarge number of` effort-consuming manual operations ',, i in combination with an elevated danger of works do,not '~
` '' ' :
',~. ... .
, - 3 ~ "-- ,;~ i,;"'.~,'' , , ,, ., ", , .. ., . ' - ,',. ' ' '', ~''-~ ',, ,' ' ,' , permit the installation to be comprehensively mechanized.
. :. .:
- Therefore, the methods of installation of ribbon-type enclo- .;
sing structures known heretofore have a number of disadvan-tages which restrict their application.
Known in the art are various arrangements for inb-balla- ;~
. ~ .; .
tion of enclosing structures.
One arrangement of this type is disclosed in French .. ..
patent No. 2105153, Cl. E 04 f. The arrangement is designed ,,~
for interconnection of metal members by machining the mutually engaging surfaces by means of a roller working member.
The housing of the arrangement is inserted into a , profiled element which is preliminarily installed in a gir- :~
der and is fixed therein, whereafter a lever of a roller wor-" king member is rotated to expand the profiled member so as , to ensure its rigid locking within the girder.
;f It should be noted that this arrangement does not enable ,;~ ;~ :.. , '~! mechanization of fastening profiled members to a girder. L ~ `
; - ~ .
'! In addition, the use of this arrangement for installation , of enclosing structures would not permit the production !" process to be intensified.
~', Known in the art is an arrangement for erection of silo !', bodies out of coiled ribbon comprising a coiled ribbon moun-ted in an uncoiling means which is fed to a bending mechanism ~.
~i~,for folding the ribbon, and means for crimping the folded , rl edges of the ribbon.
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., : :' ~' . ' ~
However this arrangement is stationary and cannot be operated at an altitude of 19-20 m and higher which is cha-racteristic of operations associated with installation o-f enclsing structures. Moreover, means for crimping the ribbon ~.
edges is not movable so -that the use of this means is limited The arrangement cannot ensure the accomplishment of all opera- -tions of installations of ribbon-type enclosing structures.
The main object of the invention is to improve the method of installation of ribbon-type enclosing structures for auto-mating the fastening of the ribbon to the board elements of girders and to provide an arrangement for effecting the~
method.
Another object of the invention is to reduce manual la-bour for installation.
Still another object of the invention is to reduce installation time and to ensure safety of labour conditions.
These and other obJ,ects are accomplished by that in a method of installation of ribbon-type enclosing structures comprising drawing coiled ribbons over the board elements ~
of girders with concurrent fixing thereof to said elements, ~`
tensioning the ribbons lengthwise and fastening them along the entire length of the girders, according to the invention .`
prior to the drawing of the coiled ribbons, longitudinal edges -thereof are bent toward the board elements of the girders and the bent edges of the ribbons are fixed, whereafter .
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the ribbon edges are crimped around the board elements of the girders. ;
In an arrangement for installation of ribbon-type enclosing structures comprising a coiled ribbon mounted in an uncoiling means and fed to a bending mechanism for shaping the ribbon to obtain a profile corresponding to the shape of the board elements of the girders, and means for crimping .
the bent edges of the ribbon, according to the inven-tion, .: .: . .
the bending mechanism comprises a rigid frame disposed beneath the ribbon drawn between two adjacent girders which are rigidly connected to bilaterally symmetrical bending heads -mounted to both ends of the frame, and means -for crimping the bent edges of the ribbon comprises a housing having a crimping head, the housing being connected to both ends of a cross-piece movable mounted to the girder so that one end of the housing is a~ticulated to one end of the cross-piece and is connected to the other end thereof by means of a f :.
~, clamping member. .~
~:1 ,. . ..
1 The bending head preferably comprises two spring-fl loaded parts accommodating at least three pairs of driven rollers, the axes of two adjacent pairs of rollers extending ~1~ in parallel with~one another and the axes of the third pair 'I of rollers extending at an angle to each other.
1 The driven rollers of the bending head should be profi- ;~
'~ led.
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;l .: . ' :
~ 6 :
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The crimping head may have two pairs of driven rollers embracing the board elements of -the girders, the rollers axes, extending in parallel with one another.
The driven rollers of the crimping head are spring-loaded and profiled.
The invention consists in the following.
During installation of ribbon-type enclosing structures, a ribbon which is mounted in an uncoiling means, is lifted with one end thereof up to the altitude or girders and fed in the bending mechanism in which longitudinal edges of the ribbon are bent toward the board elements of the girders in such a manner that the bent edges of the ribbon should be shaped to correspond to the outer profile of the board elements of the girders. ~, The ribbon with the bent edges is placed onto the board elements of two adjacent girders and is supported thereon without sla~kening due to the bent edges. .,~!
Thus the ribbon is fixed relative to the girders.
In this position, the ribbon, which slides over the girder with the bent edges thereof, is drawn along the entire length of the building. Then tensioning means are ',r secured to both ends of the ribbon to tension -thereof.
~ .. . .
The tensioned ribbon which is fixed to the board ele~
ments of the girders with the bent edges thereof (the struc- , tural arrangement of the board elements may vary, but in -:
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any case the girders should have round or bulbed bosses at the ends) is crimped around the board elements thus ensuring ~-a strong and sealed fastening of the ribbon to the girders.
Due to the construction of the arrangement consisting of -, .: .:
the bending mechanism and means for crimping the bent edges ..
of the ribbon the edges of the ribbon can be first bent , .
and then crimped around the board elements of the girders .-by using units mounted in series. `
The provision of two bilaterally symmetrical bending ,~'': ':
heads in the bending mechanism which are mounted to the ends ~ -of the rigid frame arranged between two adjacent girders beneath the ribbon being drawn enables concurrent bending , .
of both edges of the ribbon and immediate placing thereof onto the board elements of the girders, whereby the ribbon 't.-is automatically fixed to the girders.
Crimping the ribbon around the board elements of the ;,.
girders determines high qualit'y of fastening as compared to the ribbon fastening by riveting or spot welding.
Structural arrangement of means for crimping the bent edges of ribbon in the form of crimping head connected.
li ;`.
via the housing, to both ends of the cross-piece movably ;
mounted to the girder enables continuous crimping of the ,~
ribbon during the displacement thereof over the board elements of the girder.
The provision of the bending head consis-ting of two -, .
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,, :- :
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, 8 .
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parts accommodating at least three pairs of shaped rollers which are arranged in such a manner that the axes of two .
. :
adjacent pairs of rollers extend in parallel with one another and the axes of the third pair or roller extend at an angle to each other enables the bending of longitudinal edges of the ribbon to obtain a profile corresponding to the shape of the board elements of the girders, and the opportunity of displacing the heads relative to the girders makes it pos~
sible to bring the bent edges in register with the board ..
elements.
Due to the fact that the crimping head is provided with two pairs of profiled rollers embracing the board ele- .
ments of the girder, the roller axes extending in parallel wi-th one another, there is an opportunity of tight crimping of the bent edges of ribbon around the board element of the girder. .
As the bending heads and the rollers of the crimping ~. : .
head are spring-loaded, both edges of the ribbon having dif- ~ :
ferent thickness may be bent and crimped thus enlarging ~.... .
the range of ribbons suitable for installation of enclosing ` ~
structures. .. . :
Therefore, the method and arrangement for installation j:
or ribbon-type structures according to the invention enable .~ .
automation of labour-consuming operations of fixing and . :~.
, .. .
fastening the ribbon to the girders thus making possible ?,"
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' : '.
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34 ~ ::
installation time reduction lowering the cost of operations and improving labour conditions. . ~ ~
Other objects and advantagesiof the invention will '.; :: .
become apparent from the following detailed description ;' of specific embodiments thereof illustrated in the accompany-ing drawings, in which: ;
Figure 1 diagrammatically illustrates the lifting and .
drawing of ribbon over the board elements of girders;
Figure 2 shows the step of bending the ribbon edges toward the inner surface of the board elements;
Figure 3 shows the step of crimping the bent edges .:
of the ribbon around the board elements of girders;
Figure 4 is an arrangement for effecting the method ~.
according to the invention shown within the installation `~
opening of a building shown in a longitudinal section;
Figure S is the same view as in Fig. ~, but the building is shown in transverse section; `.
Figure 6 is a general view of the bending mechanism; :
Figure 7 is a side elevation of the bendlng head;
Figure 8 illustrates the operation sequence of the ::
driven rollers of the bending mechanism during the bending of longitudinal edges of the ribbon; ii:
, Figure 9 shows the bending mechanism arranged within 3 the installation opening of a building which is shown in ¦ a longitudinal section;
3 Figure 10 is a general view of means for crimping the ,. ' ' ' .
I
.' . ' ' ,:
",.
, 1~ 4 bent edges of ribbon;
Figure 11 is a sectional view taken along the line XI-XI in Figure 10.
The method for ins-tallation of ribbon-type enclosing structures according to the invention uses a coiled ribbon ' 1 mounted in an uncoiling means 2 (Figure 1) and lifted by ~`
means of a preliminarily secured tensioning member 3 to a bending mechanism 4 for bendinglongitudinal edges 5 o,f the ribbon 1 toward board elements 6 of girders ,7 (Figure 2).
..~
The ribbon l with the bent edges 5-leaving the bending mec-hanism ~ is placed onto the board elements 6 of the two ,`
adjacent girders 7 to which it is fixed against slackening ?
and sliding during the drawing over the girders along the entire length of the building. A second tensioning member identical to the f`irst tensioning member 3 is secured to the other , end of the ribbon 1 drawn along the entire length of the building, and the ribbon is tensioned. Then the bent edges ~ ~-5 of the ribbon 1 are crimped around the board elements 6 of ' -the girders 7 (Figure 3) using a crimping means 8. ;;
The reference is now made to a specific example of ins-tallation of suspended ceiling using a coiled ribbon of alu- i~
minium alloy. The ribbon thickness is 1 mm. The board element `~
6 of the girder 7 is shaped as a round section member of 13 Y-.. . . .
mm diameter. Crimping of bhe bent edges 5 around the board l elements 6 is effected through an angle equal to 270 . The --"~ .j,,'~:.'` ;.
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ribbon fas-tened in this manner withstands loads of up to 1100 kg per one meter of length. By conventional method using rivets for fastening the ribbon to the girders, maximum loads applied to the rivet fasteners were up to 700 kg.
Therefore, t~e comparison of physical and mechaniaal ,~
properties of the ribbon-type enclosure shows that the strength of fastening in accordance with the method of the ~
invention is 1.5 times greater. ~`
The above-described example illustrates high strength ;
of fastening of the ribbon to the girder and efficiency of . ' . . .
I the method according to the invention.
The arrangement for effecting the method according to ~ -., j .
the invention comprises the bending mechanism 4 (Figure 6) which is stationary mounted on two adjacent girders 7 within the installation opening of the building which is designed for performing the embedding of the ribbon ends and for , being closed with panels aftewards, and means 8 for crimping }, ,. .: .
the bent edges of the ribbon l (Figure lO)~. The bènding mec- ~ -hanism 4 comprises a ribid frame~ 9 having a drive 10 located in the central portion thereof which is of any appropriate construction. Bilaterally symmetrical bending heads 11 (Figure r, 7) are mounted to the ends of the frame 9 and connected to the drive by means of a universal joint link 12. The ben-ding head ll consists of two parts which are made in the form of partially open bodies urged against each other by ~,, .
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means of Belville springs73 and accommodate profiled rollers 14 which are cantilevered on their shafts outside the bending head 11 and are directed toward -the drive 10. The bending head 11 is provided with at least three pairs of the rollers , .
14 which are arranged in such a manner that the axes of two ;-adjacent pairs of the rollers 14 extend in parallel with one ' another, and the axes of the third pair of rollers extend at ~,c;
an angle to each other. A gearj15 is fitted on each shaft ~,i;
within the bodies. Only one inclined roller is not connected !` ~'` . ;
to the drive.
All shafts are journalled in bearings 16. ;~
In order -to provide for accurate positioning of the bent ~;' edges of the ribbon relative to the board elements of the girders, the bending heads 11 are displaceable along the frame !j 9 and can be fixed by means of a bolt joint.
The urgin~ force of the bending heads is adjusted by means of a nut 17 so that ribbons of different thickness may be used. ~ ~ -Means 8 for crimping the bent edges of the ribbon 1 (Figure 10) comprises a housing having a crimping head 18 which i~
accommodates a reducing gear connected to an electric motor by means of a clutch, and one pair of profiled rollers ~;
19 mounted on either side of a gear 20 fitted on the central portion of a shaft 21 journalled in bearings 22.
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A cross-piece 23 is mounted to the girder 7, and the cross piece is connected to the housing with both ends the- , reof, one end of the cross-piece being articulated to the ,.
housing and the other end, which is on the side of a second .
pair of the profiled rollers 19 mounted on the cross-piece 23, is connected to the housing by means of a clamping member
2~
The cross-piece 23 is mounted on two pairs of the pro- -~ .:
filed rollers 19 embracing the board elements 6 of the girder .~ :
7 which are journalled in bearings 22 on parallel axles. ~`
It is noted that one pair of the rollers 19 is designed as .
a movable support of the cross-piece 23.
. .
; The second pair of the profiled rollers 19 is cantilevered :
in bearings 22 on an axis which is symmetrical relative - :
to the cross-piece 23 and coaxially with and above the rol-. .
.i lers 19 accommodated within the reducing gear in such a man-`' ner that these pairs of rollers define an outside profile I corresponding to the shape of the board elements 6 of the ; girder 7 (Figure 11). Large module teeth are cut on the outer surface of the rollers 19 mounted on the cross-piece 23, the teeth being adapted to mesh with the gear 20 of -the reduction gear. The amount of gap and the compression force between the rollers 19 of the cross-piece 23 and rol .
lers 19 accommodated within the reducing gear are adjusted .
by means of a nut 25, and the compression force is provided ~
~ for by Belville springs 26. ~
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, :. . .
~ ` `
The arrangement for installation of a suspended ribbon~
type ceiling according to the invention functions in the following manner.
The coiled ribbon 1 of aluminium alloy is mounted in ;
an uncoiling means 2 (Figure 4 and 5). A tensioning member
The cross-piece 23 is mounted on two pairs of the pro- -~ .:
filed rollers 19 embracing the board elements 6 of the girder .~ :
7 which are journalled in bearings 22 on parallel axles. ~`
It is noted that one pair of the rollers 19 is designed as .
a movable support of the cross-piece 23.
. .
; The second pair of the profiled rollers 19 is cantilevered :
in bearings 22 on an axis which is symmetrical relative - :
to the cross-piece 23 and coaxially with and above the rol-. .
.i lers 19 accommodated within the reducing gear in such a man-`' ner that these pairs of rollers define an outside profile I corresponding to the shape of the board elements 6 of the ; girder 7 (Figure 11). Large module teeth are cut on the outer surface of the rollers 19 mounted on the cross-piece 23, the teeth being adapted to mesh with the gear 20 of -the reduction gear. The amount of gap and the compression force between the rollers 19 of the cross-piece 23 and rol .
lers 19 accommodated within the reducing gear are adjusted .
by means of a nut 25, and the compression force is provided ~
~ for by Belville springs 26. ~
., ,:
.~ ,.
~i .
:'~ ." -, :
, :. . .
~ ` `
The arrangement for installation of a suspended ribbon~
type ceiling according to the invention functions in the following manner.
The coiled ribbon 1 of aluminium alloy is mounted in ;
an uncoiling means 2 (Figure 4 and 5). A tensioning member
3 is secured to one end of the ribbon, and the ribbon is - ~
lifted with this member by means of a crane up to the altitude ;! .~, of the girders 7 to a point, where a guide shaft and the bending mechanism 4 suspended to two adjacent girders 7 by means of bolt joints facing the board elements 6 of the girders are preliminarily installed within the installa-tion opening of the building. i~
The lifted ribbon 1 is fed in guides of the bending mec-hanism 4 (Figure 9) in which the longitudinal edges 5 of the ribbon 1 pass through nips of the rollers 14 -driven by the drive 10 to be-bent grad~lally at different angles (Figure 8 toward the board elements 6 to obtain a profile corresponding ;
to the shape of these elements. The ultimate pair of the rollers 14 of the bending mechanism 4 is positioned relative ~. .
to the cross-section of the board elements in such a manner 6 that the ribbon leaving the bending mechanism is immediately fitted with the bent edges thereof over the board elements 6 of the girders 7 and is thereby fixed to the latter.
The ribbon, which is thus fixed, is drawn by means of i. -the crane along the entire length of the building. Then the j .,;,,., ~: ~ , ,~ ,, .
. ... - "~......
3~
61~S~4 .
ribbon is cut off for a required dimension, and another tensioning member 3 is secured to the ribbon end.
Then the bending mechanism and the guide shaft are removed ;
and transferred into -the next span of the building.
The Eree ends of the tensioning members are secured in special channel bars in the installation opening, and the ribbon is tensioned to achieve a stress~ = 100-150kg/cm2.
Prior to the installation of means 8 for crimping the bent `
edges 5 on the girder, the rollers 19 thereof are spaced apart at a distance which is by 1-2 mm greater than the size of the bent edges of the ribbon. Then the means 8 is lifted into the installation opening and placed with the spaced `
apart rollers 19 onto the bent edges of the ribbon which are already fitted to the board elements 6 of the girder 7, un-til the entire cross-piece 23 is received between the board elements of the girdérs. The rollers 19 are compressed by -,~ , .
means of the nut 25, via -the Belville springs 26, and the electric motor is energised to drive the rollers, via the ~ r clutch and reducing gear, thereby causing the movement of .
the crimping means 8 along the girder up to the opposite installation openings, the rollers crimping the bent ed$es 5 of the ribbon 1 (Figure 11).
~, , Then the means 8 is removed through the installation opening, and the tensioned ribbon remains fastened to the girder by means of the edges thereof crimped around the ~, board elements of the girder. Then the above-described se-~. ' ;, ,, ,,:~ , , , . .~ .
,.
;~.: :
::: . : ~ ,:
'. ' ' . , , ~ ,- ~: ,. ' . quence of operations is repea-ted in next spans of the build~
~ . , .
ing.
It will be apparent from the description that the method . ::;
r and arrangement for installation of ribbon-type enclosing structures provide an efficient facility for fastening the ~:
ribbon to the girders and enable high productivity of instal-~1 lation.
':. ,:, ' ..
.', '. ,.
.' ...
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lifted with this member by means of a crane up to the altitude ;! .~, of the girders 7 to a point, where a guide shaft and the bending mechanism 4 suspended to two adjacent girders 7 by means of bolt joints facing the board elements 6 of the girders are preliminarily installed within the installa-tion opening of the building. i~
The lifted ribbon 1 is fed in guides of the bending mec-hanism 4 (Figure 9) in which the longitudinal edges 5 of the ribbon 1 pass through nips of the rollers 14 -driven by the drive 10 to be-bent grad~lally at different angles (Figure 8 toward the board elements 6 to obtain a profile corresponding ;
to the shape of these elements. The ultimate pair of the rollers 14 of the bending mechanism 4 is positioned relative ~. .
to the cross-section of the board elements in such a manner 6 that the ribbon leaving the bending mechanism is immediately fitted with the bent edges thereof over the board elements 6 of the girders 7 and is thereby fixed to the latter.
The ribbon, which is thus fixed, is drawn by means of i. -the crane along the entire length of the building. Then the j .,;,,., ~: ~ , ,~ ,, .
. ... - "~......
3~
61~S~4 .
ribbon is cut off for a required dimension, and another tensioning member 3 is secured to the ribbon end.
Then the bending mechanism and the guide shaft are removed ;
and transferred into -the next span of the building.
The Eree ends of the tensioning members are secured in special channel bars in the installation opening, and the ribbon is tensioned to achieve a stress~ = 100-150kg/cm2.
Prior to the installation of means 8 for crimping the bent `
edges 5 on the girder, the rollers 19 thereof are spaced apart at a distance which is by 1-2 mm greater than the size of the bent edges of the ribbon. Then the means 8 is lifted into the installation opening and placed with the spaced `
apart rollers 19 onto the bent edges of the ribbon which are already fitted to the board elements 6 of the girder 7, un-til the entire cross-piece 23 is received between the board elements of the girdérs. The rollers 19 are compressed by -,~ , .
means of the nut 25, via -the Belville springs 26, and the electric motor is energised to drive the rollers, via the ~ r clutch and reducing gear, thereby causing the movement of .
the crimping means 8 along the girder up to the opposite installation openings, the rollers crimping the bent ed$es 5 of the ribbon 1 (Figure 11).
~, , Then the means 8 is removed through the installation opening, and the tensioned ribbon remains fastened to the girder by means of the edges thereof crimped around the ~, board elements of the girder. Then the above-described se-~. ' ;, ,, ,,:~ , , , . .~ .
,.
;~.: :
::: . : ~ ,:
'. ' ' . , , ~ ,- ~: ,. ' . quence of operations is repea-ted in next spans of the build~
~ . , .
ing.
It will be apparent from the description that the method . ::;
r and arrangement for installation of ribbon-type enclosing structures provide an efficient facility for fastening the ~:
ribbon to the girders and enable high productivity of instal-~1 lation.
':. ,:, ' ..
.', '. ,.
.' ...
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, ,~ ,~ .
. i ," .
,~ ''. .
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.1 '. ~ , ' .
:
., `'',,.` ' : 17 :, :
.j - .
., ~ . . . - . . . . .
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An arrangement for installation of ribbon-type enclosing structures comprising: a coiled ribbon with an uncoil-ing means; a bending mechanism for shaping the ribbon to obtain a profile corresponding to the shape of the board elements of girders, said mechanism having a rigid frame disposed beneath said ribbon drawn between two adjacent girders, and two bilat-erally symmetrical bending heads mounted on both ends of said frame and rigidly connected to said girders; means for crimping the bent edges of the ribbon, said means comprising a housing having a crimping head and a cross-piece movably mounted to said girder and connected with both ends thereof to said housing, one end of said cross-piece being articulated to said housing, and a clamping member, the other end of said cross-piece being con-nected to said housing by means of said clamping member.
2. An arrangement according to claim 1, wherein said bending head comprises two spring-loaded parts accommodating at least three pairs of driven rollers, the axes of two adjacent pairs of the rollers extending in parallel with one another and the axes of the third pair extending at an angle to each other.
3. An arrangement according to claim 2, wherein the driven rollers of the bending head are profiled.
4. An arrangement according to claim 1, wherein the crimping head is provided with two pairs of driven rollers embracing the board elements of the girder, the axes of the rollers extending in parallel with each other.
5. An arrangement according to claim 4, wherein the driven rollers are spring-loaded and profiled.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU752138141A SU602664A1 (en) | 1975-05-28 | 1975-05-28 | Device for connecting metal members of bearing and band-type barrier constructions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1061694A true CA1061694A (en) | 1979-09-04 |
Family
ID=20620673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA253,419A Expired CA1061694A (en) | 1975-05-28 | 1976-05-26 | Method and arrangement for installation of ribbon-type enclosing structures |
Country Status (5)
| Country | Link |
|---|---|
| CA (1) | CA1061694A (en) |
| DE (1) | DE2623789C3 (en) |
| FI (1) | FI59843C (en) |
| FR (1) | FR2312625A1 (en) |
| SU (1) | SU602664A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501848A (en) * | 2020-04-09 | 2020-08-07 | 中国一冶集团有限公司 | Pipe gallery side wall waterproof coiled material construction device and construction method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9300478D0 (en) * | 1993-01-07 | 1993-03-03 | Hunter Douglas Ind Bv | A panel system and a panelling member therefor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2294324A (en) * | 1940-09-12 | 1942-08-25 | Leo H Wilkens | Roofing machine |
| US3545147A (en) * | 1968-07-25 | 1970-12-08 | Winbro Inc | Sheet metal roofing panel |
| US3601947A (en) * | 1970-02-27 | 1971-08-31 | Leslie A Hurd | Apparatus for onsite roll forming and application of roofing sheets |
-
1975
- 1975-05-28 SU SU752138141A patent/SU602664A1/en active
-
1976
- 1976-05-26 CA CA253,419A patent/CA1061694A/en not_active Expired
- 1976-05-26 DE DE19762623789 patent/DE2623789C3/en not_active Expired
- 1976-05-27 FI FI761503A patent/FI59843C/en not_active IP Right Cessation
- 1976-05-28 FR FR7616170A patent/FR2312625A1/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501848A (en) * | 2020-04-09 | 2020-08-07 | 中国一冶集团有限公司 | Pipe gallery side wall waterproof coiled material construction device and construction method |
| CN111501848B (en) * | 2020-04-09 | 2021-11-26 | 中国一冶集团有限公司 | Pipe gallery side wall waterproof coiled material construction device and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| FI59843C (en) | 1981-10-12 |
| FI59843B (en) | 1981-06-30 |
| DE2623789B2 (en) | 1979-04-05 |
| FR2312625B1 (en) | 1978-11-17 |
| FR2312625A1 (en) | 1976-12-24 |
| DE2623789A1 (en) | 1976-12-09 |
| SU602664A1 (en) | 1978-04-15 |
| DE2623789C3 (en) | 1979-11-22 |
| FI761503A (en) | 1976-11-29 |
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