CA2597703C - Vertically movable partition walls - Google Patents
Vertically movable partition walls Download PDFInfo
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- CA2597703C CA2597703C CA002597703A CA2597703A CA2597703C CA 2597703 C CA2597703 C CA 2597703C CA 002597703 A CA002597703 A CA 002597703A CA 2597703 A CA2597703 A CA 2597703A CA 2597703 C CA2597703 C CA 2597703C
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- 238000005192 partition Methods 0.000 title claims abstract description 25
- 239000010432 diamond Substances 0.000 claims abstract description 37
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 30
- 238000004804 winding Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
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Abstract
A partition wall, upwardly movable into storage position and downwardly movable into vertical, down position. The wall comprises a plurality of similar trains of elongated members. The members of each train are arranged to form a single pantograph forming longitudinally aligned rows of diamond shapes. The trains are spaced laterally to form a wall plane and oriented so that the diamonds of the pantographs operate in a plane at a 90° angle to that wall plane. A plurality of panels are provided, each panel being secured to a pair of corresponding members in adjacent trains. The panels are secured to corresponding pairs of opposed sides of the diamond shapes. Means are provided to raise and lower the trains at a similar rate. The pantographs are contracted when the wall is in a storage position and the elongated when the wall is in down position. The panels form a vertical wall when the pantographs are elongated in down position.
Description
TITLE OF THE INVENTION
VERTICALLY MOVABLE PARTITION WALLS
This application is divisional of Canadian Patent Application Serial No. 2,465,433 filed April 27, 2004.
FIELD OF THE INVENTION
The present invention relates to partition walls and more particularly to vertically movable partition walls for use within buildings, for example, to cordon off areas, as required, to prevent public access, for crowd control or for reconfiguring usable space in a building.
BACKGROUND OF THE INVENTION
Conventional movable partition wall systems usually take the form of horizontally sliding panels, and are used for example to close or section off areas in buiidings. These types of partition wall systems usually require storage space beside the area being closed off, to accommodate the panels when not in use.
U.S. Patent No. 5,062,464 of Miles Peterson, issued November 5, 1991 describes and illustrates a partition wall which uses a pantograph type of construction to provide a rigid wall section, which is vertically collapsible and movable to a storage position. Conventional horizontally movable partition wall systems have problems of efficient storage and require additional structural support requirements. The Peterson vertically movable partition wall avoids those problems by providing ceiling storage for the partition wall and a single permanent location for all of the panels so that the loads imposed on the building support structure do not vary since there is no horizontal movement of the panels. Further, this design of the wall system allows the partition to be of any width or height as it is lifted and supported at multiple points across its width.
_2_ The pantograph structure as suggested by this Peterson construction is similar to that for instance found in baby gates in which a series of elongated members are pivotally linked together in spaced fashion to provide a series of similar diamonds along the length of the gate. In a single (as opposed to multiple) pantograph construction, a pair of members of similar size are pivotally linked at their midpoints. One pair of their ends are pivotally linked to the ends of a further corresponding pair of members of similar length similarly pivoted at their midpoint, and so on. The midpoints of the members are longitudinally aligned and form opposed longitudinal apexes of diamond shapes; the other opposed corners of these diamonds are formed by the pivotally secured ends of adjacent pairs of intersecting members, and are the lateral apexes. The pantograph structure expands and contracts longitudinally. The pantograph structure in such applications is useful because it causes forces applied longitudinally, in the direction of expansion and contraction of the pantograph, to be transmitted evenly throughout all of the members of the pantograph structure. As well, all of the apexes of the diamonds formed by the points of intersection of the members, as the structure is contracted, will arrive at their final, fully contracted position at the same time, meaning that the longitudinal apexes of the diamonds at one end of the pantograph structure, which are moving towards the other end during contraction, will move at a much greater speed than the apexes of the diamonds at the other end.
It is an object of the present invention to provide a movable partition wall which is based on these pantograph principles.
SUMMARY OF THE INVENTION
In accordance with the present invention there is provided a partition wall, upwardly movable into storage position and downwardly movable into vertical, down position. The wall comprises a plurality of similar trains of elongated members. The members of each train are arranged to form a single pantograph forming longitudinally aligned rows of diamond shapes.
The trains are spaced laterally to form a wall plane and oriented so that the diamonds of the pantographs operate in a plane at a 900 angle to that wall plane. A plurality of panels are provided, each panel being secured to a pair of confronting members in adjacent trains. The panels are secured to corresponding pairs of opposed sides of the diamond shapes. Means are provided to raise and lower the trains at a similar rate. The pantographs are contracted when the wall is in a storage position and elongated when the wall is in down position. The panels align flushly to form a vertical wall when the pantographs are elongated in down position. The vertical wall has front and rear planar surfaces when in the down position. The similarly located members in adjacent trains are in end-to-end vertical alignment when the wall is in down position.
In an embodiment of the present invention, similar pairs of elongated members intersect and are secured pivotally together at a central point between their ends, that point being on a longitudinal center line of each member, to form adjoining, longitudinally disposed apexes of adjacent diamond shapes. Ends of these pairs of intersecting members are pivotally connected to the ends of similar pairs of intersecting members at points which are laterally offset to the outside of that center line, to form at these ends laterally disposed apexes of the diamond shapes, so that when the trains are contracted the longitudinal apexes of each diamond shape are drawn together and the laterally disposed apexes are more separated , and when the trains are elongated the longitudinal apexes of each diamond shape become more separated and the laterally disposed apexes are drawn together. Also, in each train, pairs of elongated members making up one pair of opposed sides of diamond shapes, are spaced about similar single members making up the other opposed pair of sides of the diamond shapes. The panels are secured only to the spaced pairs of elongated members along the length of the train.
The partition wall according to the present invention has many advantages. Because its components move vertically rather than horizontally, storage space is not required to the side of the area within which the wall operates, since the wall folds up into and stores in a space above the area in question. Furthermore, because the wall does not move horizontally, the loads imposed on the support structure are constant. As well, it provides a relatively simple and economical construction for a partition wall.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other advantages of the invention will become apparent upon reading the following detailed description and upon referring to the drawings in which:
Figure 1 is a perspective view of a portion of a partition wall according to the present invention, partially broken away, the wall being in an intermediate position between storage and down positions;
Figure 2 is an end view of the wall of Figure 1;
Figure 3 is an end view of the wall of Figure 1 showing the members and panels in down position;
Figure 4 is an end view of the wall of Figure 3 showing the members and panels in storage position; and Figure 5 is a perspective view of a portion of the partition wall in down position.
While the invention will be described in conjunction with illustrated embodiments, it will be understood that it is not intended to limit the invention to such embodiment. On the contrary, it is intended to cover all alternatives, modifications and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims.
DETAILED DESCRIPTION OF THE INVENTION
Turning to Figure 1, there is illustrated a partition wall 72 in accordance with the present invention in an intermediate position between an upper, storage position and a down position where the wall is in vertical orientation (Figures 3 and 5). As can be seen in Figures 1 and 2, a plurality of similar trains 74 of elongated members 76 are provided, the members 76 of each train 74 arranged to form a single pantograph 78 forming longitudinally aligned rows of diamond shapes 80 (Figure 2). While two trains have been illustrated in Figure 1, any number of trains may be spaced laterally to form a wall of appropriate width. These trains lie in the vertical plane of the wall and are oriented so that the diamond shapes 80 of the pantographs lie and operate in a plane at a 900 angle to that wall plane.
A plurality of panels 82 are provided, secured to members 76 as will be discussed in more detail hereinafter. Each panel 82 is secured to a pair of corresponding members 76 in adjacent trains, as illustrated. The panels are secured to corresponding pairs 84 of opposed sides of the diamond shapes.
An appropriate means to move the wall panels 82 into storage position or into down position is provided in the form of a power driven line shaft 86 to which drums 88 are secured. One end of each of cables 90 is wrapped around a corresponding drum 88. Each cable 90 passes over a corresponding sheave or pulley 92 and its other end is for example operatively connected to a lower end 94 of its associated train 74, as illustrated, or to a bar (not illustrated) extending between adjacent trains 74 at their lower ends 94.
As can be seen in Figure 2, similar pairs 96 of elongated members 76 intersect and are secured pivotally together at a central point 98 between their ends. This point is on a longitudinal center line 100 of each member. In this manner, adjoining, longitudinally disposed apexes 102 of adjacent diamond shapes 80 are formed. Corresponding ends 104 of these pairs 96 of intersecting members 76 are pivotally connected to the ends 104 of similar pairs of intersecting members 76 at points 105 and 106 respectively, which points are laterally offset to the outside of center lines 100, to form, at these ends, laterally disposed apexes 108 of the diamond shapes 80, so that, when the trains 74 are contracted, the longitudinal apexes 102 of each diamond shape 80 are drawn together and the laterally disposed apexes 108 are more separated, and when the trains 74 are elongated, the longitudinal apexes 102 of each diamond shape 80 become more separated and the laterally disposed apexes 108 are drawn together.
In each of the trains 74, similar pairs 76a and 76b (Figure 1) of elongated members, making up one pair of opposed sides of diamond shape 80, are spaced about similar single members 76c, which members make up the other opposed pair of opposite sides of the diamond shapes. The panels 82 are secured only to the spaced pairs of elongated members 76a and 76b, along the length of the train. They are not secured directly to single members 76c.
As can be seen in Figure 1, each panel 82 is secured to one of the pairs of parallel elongated members making up one pair of opposed sides of diamond shapes, say member 76a, and confronting member 76b from the adjacent similar pair of parallel elongated members, members 76a and 76b in this context being in separate, but adjacent, trains 74. With this manner of connecting the panels 82 to the members 76, the panels 82 do not interfere with the operation of single members 76c, or vice versa, when the pantographs are moved between contracted (storage) and down positions.
The partition wall construction according to the aspect of the present invention permits pairs of panels to be secured, in spaced fashion, as illustrated in Figure 1, to these confronting, elongated members 76a and 76b.
The dead air space in the space between these panels provides sound or heat insulation. Alternatively, that space may be filled, for example, with insulation material (not shown).
Again, as can be seen in Figures 2 and 3, the use of pivot points 105 and 106 which are laterally offset to the outside of center line 100 of pairs of intersecting members for their laterally disposed apexes, and the forming of flushly mating ends 112 and 114 of these intersecting members 96, as illustrated, permits the elongated members 76 of the trains to reach a perfectly aligned orientation, as illustrated in Figures 3 and 5, when the trains are in down position. This feature enables the panels to align themselves, flushly in vertical orientation to form a unitary or unbroken vertical wall, or a wall having desired features, depending upon the features of the panels provided, when the partition wall is in this down position. As can be seen in Figure 5, when in this position, only small spaces exist horizontally between the panels and somewhat wider, but still narrow vertical spaces exist between the panels.
It will be understood that the panels may be made of any suitable material, for example, metal, plastic or composite material. Some of the panels may be of transparent material, and applied so as to provide a completely transparent wall or a wall with window sections in it.
The wall may be as wide as desired, by adding appropriate numbers of similar trains 74 of elongated members 76, and associated panels 82 in adjacent fashion.
The partition wall construction according to the present invention is both simple and economical to construct and easy to operate.
Thus, it is apparent that there has been provided in accordance with the invention a partition wall that fully satisfies the objects, aims and advantages set forth above. While the invention has been described in conjunction with illustrated embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications and variations as fall within the spirit and broad scope of the invention.
VERTICALLY MOVABLE PARTITION WALLS
This application is divisional of Canadian Patent Application Serial No. 2,465,433 filed April 27, 2004.
FIELD OF THE INVENTION
The present invention relates to partition walls and more particularly to vertically movable partition walls for use within buildings, for example, to cordon off areas, as required, to prevent public access, for crowd control or for reconfiguring usable space in a building.
BACKGROUND OF THE INVENTION
Conventional movable partition wall systems usually take the form of horizontally sliding panels, and are used for example to close or section off areas in buiidings. These types of partition wall systems usually require storage space beside the area being closed off, to accommodate the panels when not in use.
U.S. Patent No. 5,062,464 of Miles Peterson, issued November 5, 1991 describes and illustrates a partition wall which uses a pantograph type of construction to provide a rigid wall section, which is vertically collapsible and movable to a storage position. Conventional horizontally movable partition wall systems have problems of efficient storage and require additional structural support requirements. The Peterson vertically movable partition wall avoids those problems by providing ceiling storage for the partition wall and a single permanent location for all of the panels so that the loads imposed on the building support structure do not vary since there is no horizontal movement of the panels. Further, this design of the wall system allows the partition to be of any width or height as it is lifted and supported at multiple points across its width.
_2_ The pantograph structure as suggested by this Peterson construction is similar to that for instance found in baby gates in which a series of elongated members are pivotally linked together in spaced fashion to provide a series of similar diamonds along the length of the gate. In a single (as opposed to multiple) pantograph construction, a pair of members of similar size are pivotally linked at their midpoints. One pair of their ends are pivotally linked to the ends of a further corresponding pair of members of similar length similarly pivoted at their midpoint, and so on. The midpoints of the members are longitudinally aligned and form opposed longitudinal apexes of diamond shapes; the other opposed corners of these diamonds are formed by the pivotally secured ends of adjacent pairs of intersecting members, and are the lateral apexes. The pantograph structure expands and contracts longitudinally. The pantograph structure in such applications is useful because it causes forces applied longitudinally, in the direction of expansion and contraction of the pantograph, to be transmitted evenly throughout all of the members of the pantograph structure. As well, all of the apexes of the diamonds formed by the points of intersection of the members, as the structure is contracted, will arrive at their final, fully contracted position at the same time, meaning that the longitudinal apexes of the diamonds at one end of the pantograph structure, which are moving towards the other end during contraction, will move at a much greater speed than the apexes of the diamonds at the other end.
It is an object of the present invention to provide a movable partition wall which is based on these pantograph principles.
SUMMARY OF THE INVENTION
In accordance with the present invention there is provided a partition wall, upwardly movable into storage position and downwardly movable into vertical, down position. The wall comprises a plurality of similar trains of elongated members. The members of each train are arranged to form a single pantograph forming longitudinally aligned rows of diamond shapes.
The trains are spaced laterally to form a wall plane and oriented so that the diamonds of the pantographs operate in a plane at a 900 angle to that wall plane. A plurality of panels are provided, each panel being secured to a pair of confronting members in adjacent trains. The panels are secured to corresponding pairs of opposed sides of the diamond shapes. Means are provided to raise and lower the trains at a similar rate. The pantographs are contracted when the wall is in a storage position and elongated when the wall is in down position. The panels align flushly to form a vertical wall when the pantographs are elongated in down position. The vertical wall has front and rear planar surfaces when in the down position. The similarly located members in adjacent trains are in end-to-end vertical alignment when the wall is in down position.
In an embodiment of the present invention, similar pairs of elongated members intersect and are secured pivotally together at a central point between their ends, that point being on a longitudinal center line of each member, to form adjoining, longitudinally disposed apexes of adjacent diamond shapes. Ends of these pairs of intersecting members are pivotally connected to the ends of similar pairs of intersecting members at points which are laterally offset to the outside of that center line, to form at these ends laterally disposed apexes of the diamond shapes, so that when the trains are contracted the longitudinal apexes of each diamond shape are drawn together and the laterally disposed apexes are more separated , and when the trains are elongated the longitudinal apexes of each diamond shape become more separated and the laterally disposed apexes are drawn together. Also, in each train, pairs of elongated members making up one pair of opposed sides of diamond shapes, are spaced about similar single members making up the other opposed pair of sides of the diamond shapes. The panels are secured only to the spaced pairs of elongated members along the length of the train.
The partition wall according to the present invention has many advantages. Because its components move vertically rather than horizontally, storage space is not required to the side of the area within which the wall operates, since the wall folds up into and stores in a space above the area in question. Furthermore, because the wall does not move horizontally, the loads imposed on the support structure are constant. As well, it provides a relatively simple and economical construction for a partition wall.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other advantages of the invention will become apparent upon reading the following detailed description and upon referring to the drawings in which:
Figure 1 is a perspective view of a portion of a partition wall according to the present invention, partially broken away, the wall being in an intermediate position between storage and down positions;
Figure 2 is an end view of the wall of Figure 1;
Figure 3 is an end view of the wall of Figure 1 showing the members and panels in down position;
Figure 4 is an end view of the wall of Figure 3 showing the members and panels in storage position; and Figure 5 is a perspective view of a portion of the partition wall in down position.
While the invention will be described in conjunction with illustrated embodiments, it will be understood that it is not intended to limit the invention to such embodiment. On the contrary, it is intended to cover all alternatives, modifications and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims.
DETAILED DESCRIPTION OF THE INVENTION
Turning to Figure 1, there is illustrated a partition wall 72 in accordance with the present invention in an intermediate position between an upper, storage position and a down position where the wall is in vertical orientation (Figures 3 and 5). As can be seen in Figures 1 and 2, a plurality of similar trains 74 of elongated members 76 are provided, the members 76 of each train 74 arranged to form a single pantograph 78 forming longitudinally aligned rows of diamond shapes 80 (Figure 2). While two trains have been illustrated in Figure 1, any number of trains may be spaced laterally to form a wall of appropriate width. These trains lie in the vertical plane of the wall and are oriented so that the diamond shapes 80 of the pantographs lie and operate in a plane at a 900 angle to that wall plane.
A plurality of panels 82 are provided, secured to members 76 as will be discussed in more detail hereinafter. Each panel 82 is secured to a pair of corresponding members 76 in adjacent trains, as illustrated. The panels are secured to corresponding pairs 84 of opposed sides of the diamond shapes.
An appropriate means to move the wall panels 82 into storage position or into down position is provided in the form of a power driven line shaft 86 to which drums 88 are secured. One end of each of cables 90 is wrapped around a corresponding drum 88. Each cable 90 passes over a corresponding sheave or pulley 92 and its other end is for example operatively connected to a lower end 94 of its associated train 74, as illustrated, or to a bar (not illustrated) extending between adjacent trains 74 at their lower ends 94.
As can be seen in Figure 2, similar pairs 96 of elongated members 76 intersect and are secured pivotally together at a central point 98 between their ends. This point is on a longitudinal center line 100 of each member. In this manner, adjoining, longitudinally disposed apexes 102 of adjacent diamond shapes 80 are formed. Corresponding ends 104 of these pairs 96 of intersecting members 76 are pivotally connected to the ends 104 of similar pairs of intersecting members 76 at points 105 and 106 respectively, which points are laterally offset to the outside of center lines 100, to form, at these ends, laterally disposed apexes 108 of the diamond shapes 80, so that, when the trains 74 are contracted, the longitudinal apexes 102 of each diamond shape 80 are drawn together and the laterally disposed apexes 108 are more separated, and when the trains 74 are elongated, the longitudinal apexes 102 of each diamond shape 80 become more separated and the laterally disposed apexes 108 are drawn together.
In each of the trains 74, similar pairs 76a and 76b (Figure 1) of elongated members, making up one pair of opposed sides of diamond shape 80, are spaced about similar single members 76c, which members make up the other opposed pair of opposite sides of the diamond shapes. The panels 82 are secured only to the spaced pairs of elongated members 76a and 76b, along the length of the train. They are not secured directly to single members 76c.
As can be seen in Figure 1, each panel 82 is secured to one of the pairs of parallel elongated members making up one pair of opposed sides of diamond shapes, say member 76a, and confronting member 76b from the adjacent similar pair of parallel elongated members, members 76a and 76b in this context being in separate, but adjacent, trains 74. With this manner of connecting the panels 82 to the members 76, the panels 82 do not interfere with the operation of single members 76c, or vice versa, when the pantographs are moved between contracted (storage) and down positions.
The partition wall construction according to the aspect of the present invention permits pairs of panels to be secured, in spaced fashion, as illustrated in Figure 1, to these confronting, elongated members 76a and 76b.
The dead air space in the space between these panels provides sound or heat insulation. Alternatively, that space may be filled, for example, with insulation material (not shown).
Again, as can be seen in Figures 2 and 3, the use of pivot points 105 and 106 which are laterally offset to the outside of center line 100 of pairs of intersecting members for their laterally disposed apexes, and the forming of flushly mating ends 112 and 114 of these intersecting members 96, as illustrated, permits the elongated members 76 of the trains to reach a perfectly aligned orientation, as illustrated in Figures 3 and 5, when the trains are in down position. This feature enables the panels to align themselves, flushly in vertical orientation to form a unitary or unbroken vertical wall, or a wall having desired features, depending upon the features of the panels provided, when the partition wall is in this down position. As can be seen in Figure 5, when in this position, only small spaces exist horizontally between the panels and somewhat wider, but still narrow vertical spaces exist between the panels.
It will be understood that the panels may be made of any suitable material, for example, metal, plastic or composite material. Some of the panels may be of transparent material, and applied so as to provide a completely transparent wall or a wall with window sections in it.
The wall may be as wide as desired, by adding appropriate numbers of similar trains 74 of elongated members 76, and associated panels 82 in adjacent fashion.
The partition wall construction according to the present invention is both simple and economical to construct and easy to operate.
Thus, it is apparent that there has been provided in accordance with the invention a partition wall that fully satisfies the objects, aims and advantages set forth above. While the invention has been described in conjunction with illustrated embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications and variations as fall within the spirit and broad scope of the invention.
Claims (9)
1. A partition wall, upwardly movable into storage position and downwardly movable into vertical, down position, the partition wall comprising:
a) a plurality of trains of elongated members, the members of each train arranged to form a single pantograph forming longitudinally aligned rows of diamond shapes, the trains spaced laterally to form a wall plane and oriented so that the diamond shapes of the pantographs operate in a plane at a 90°
angle to that wall plane;
b) a plurality of panels, each panel secured to a pair of confronting members in adjacent trains, the panels secured to corresponding pairs of opposed sides of the diamond shapes; and c) means to raise and lower the trains at a substantially equal rate, the pantographs being contracted when the wall is in storage position and the pantographs being elongated when the wall is in down position;
the panels aligning flushly to form a vertical wall having front and rear planar surfaces when the pantographs are elongated and the wall is in the down position, the similarly located members in adjacent trains being in end-to-end vertical alignment when the wall is in the down position.
a) a plurality of trains of elongated members, the members of each train arranged to form a single pantograph forming longitudinally aligned rows of diamond shapes, the trains spaced laterally to form a wall plane and oriented so that the diamond shapes of the pantographs operate in a plane at a 90°
angle to that wall plane;
b) a plurality of panels, each panel secured to a pair of confronting members in adjacent trains, the panels secured to corresponding pairs of opposed sides of the diamond shapes; and c) means to raise and lower the trains at a substantially equal rate, the pantographs being contracted when the wall is in storage position and the pantographs being elongated when the wall is in down position;
the panels aligning flushly to form a vertical wall having front and rear planar surfaces when the pantographs are elongated and the wall is in the down position, the similarly located members in adjacent trains being in end-to-end vertical alignment when the wall is in the down position.
2. A wall according to claim 1, wherein pairs of elongated members intersect and are secured pivotally together at a central point between their ends, which point is on a longitudinal center line of each member, to form adjoining, longitudinally disposed apexes of adjacent diamond shapes, and the ends of each pair of intersecting members are pivotally connected to the ends of other pairs of intersecting members at points which are laterally offset to the outside of that center line, to form at these ends laterally disposed apexes of the diamond shapes, so that when the trains are contracted the longitudinal apexes of each diamond shape are drawn together and the laterally disposed apexes are more separated, and when the trains are elongated the longitudinal apexes of each diamond shape become more separated and the laterally disposed apexes are drawn together.
3. A wall according to claim 2, wherein in each train, pairs of parallel elongated members, making up one pair of opposed sides of diamond shapes, are spaced about single members making up the other opposed pair of opposed sides of diamond shapes, the panels being secured only to members of the spaced pairs of elongated members along the length of the train.
4. A wall according to claim 3, wherein each panel is secured to adjacent elongated members of the spaced pairs of members in adjacent trains.
5. A wall according to claim 1, wherein the means to raise and lower the trains comprises a cable means secured to the train, and means to manipulate the cable means so as to simultaneously raise or lower the trains at a similar rate.
6. A wall according to claim 5, wherein the cable means comprises a plurality of cables, each of the cables secured to a different one of the lower ends of each of the trains, portions of the cables wound about a power driven line shaft so that rotation of the line shaft in one direction, winding up the cables, causes the trains simultaneously and at a similar rate to move to contracted position and rotation of the line shaft in the other direction, unwinding the cables, and causes the trains simultaneously and at a similar rate to move to down position.
7. A wall according to claim 1, wherein spaced pairs of panels are secured to pairs of confronting members in adjacent trains.
8. A wall according to claim 4, wherein a pair of panels are secured to in spaced fashion, and extend between, adjacent ones of the elongated members in the spaced pair of members in adjacent trains so as to provide a double wall having a dead space therein when the trains are in down position.
9. A wall according to claim 1, wherein no part of the wall extends below the lowest panel when the trains are in the storage position, such that when the trains are in the storage position the space to be occupied by the wall when it is in its down position is empty.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/430,528 | 2003-05-06 | ||
| US10/430,528 US6808000B1 (en) | 2003-05-06 | 2003-05-06 | Vertically movable security partition |
| US10/806,883 US7156142B2 (en) | 2004-03-23 | 2004-03-23 | Vertically movable partition walls |
| US10/806,883 | 2004-03-23 | ||
| CA002465433A CA2465433C (en) | 2003-05-06 | 2004-04-27 | Vertically movable partitions |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002465433A Division CA2465433C (en) | 2003-05-06 | 2004-04-27 | Vertically movable partitions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2597703A1 CA2597703A1 (en) | 2004-11-06 |
| CA2597703C true CA2597703C (en) | 2009-09-29 |
Family
ID=38663537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002597703A Expired - Lifetime CA2597703C (en) | 2003-05-06 | 2004-04-27 | Vertically movable partition walls |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2597703C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8327905B2 (en) | 2010-10-01 | 2012-12-11 | Railquip Enterprises Inc. | Vertically collapsible barrier with improved sealing |
| US9045935B2 (en) | 2012-10-01 | 2015-06-02 | Railquip Enterprises Inc. | Vertically folding wall partition |
-
2004
- 2004-04-27 CA CA002597703A patent/CA2597703C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2597703A1 (en) | 2004-11-06 |
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