EP1398453A1 - Device for screening off a space - Google Patents
Device for screening off a space Download PDFInfo
- Publication number
- EP1398453A1 EP1398453A1 EP03077459A EP03077459A EP1398453A1 EP 1398453 A1 EP1398453 A1 EP 1398453A1 EP 03077459 A EP03077459 A EP 03077459A EP 03077459 A EP03077459 A EP 03077459A EP 1398453 A1 EP1398453 A1 EP 1398453A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- roller
- screen
- unwinding
- motor
- 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.)
- Granted
Links
- 238000012216 screening Methods 0.000 title claims description 13
- 238000004804 winding Methods 0.000 claims description 50
- 230000033001 locomotion Effects 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/66—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor with a roller situated at the bottom
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/40—Roller blinds
Definitions
- the invention relates to a device for screening off a space, comprising an upper and a lower roller system, provided for rolling up and down the screen, in which:
- U.S. 4,766,941 Up to the present such a device is known from U.S. 4,766,941 in which an electrically driven window screening is described with selectively variable screening characteristics, which may be installed in a window opening for selectively blocking (by absorption or reflection), filtering and/or allowing the light to pass the window screening into a room for purposes such as energy control and/or decoration, etc.
- This window screening comprises an upper roller system, a lower roller system and a long, flexible screen which is wound around the upper and the lower roller systems, the screen being essentially longer than the distance between the upper and the lower roller system.
- Each of these roller systems comprises a long tube-shaped roller, supports which may be connected to the extremity of the roller for rotatably fixing the extremity of the rollers with respect to the window.
- the screen is wound up and down from the rollers, while they are rotating around their respective longitudinal axes.
- a drive is provided in order to drive the roller in either direction in order thus to wind the screen from one of the rollers onto the other roller.
- the drive comprises a direct drive motor, comprising an output shaft, being essentially coaxial with respect to the direct drive motor, and the direct drive motor being provided within the roller, the output shaft being coaxial with respect to the roller.
- the direct drive motor is attached to the frame in order to prevent it from rotating.
- each direct drive motor is provided with a torsion spring in order to maintain the screen tightened when it is wound up or unwound from one roller onto the other and when the screen is stationary and to compensate any changes in rotating speed when the screen is wound up or unwound.
- this torsion spring functionally connects the output shaft of each direct drive motor to the respective roller.
- the torsion spring of one of the rollers is wound in one direction (e.g. clockwise), while the other spring, which is connected to the other direct drive motor is wound in the opposite direction (e.g. anti-clockwise), so that, when starting either of the direct drive motors differences as to rotational speed and starting time of the direct drive motors may be compensated.
- the purpose of the invention is to provide a device for screening off a space, not having these drawbacks.
- a device for screening off a space comprising an upper and a lower roller system for winding up and unwinding the screen, in which:
- the transmission means comprise a chain for transmitting said winding and unwinding motion.
- Another disadvantage of the known device described above is that both motors are provided within the upper and the lower roller respectively. Because the motors are provided within the rollers, maintenance and repairs on these motors has become more difficult.
- An additional purpose of the invention consists in providing a device for screening off a space as described above, but where the motor is easily accessible, e.g. for carrying out maintenance and repairs.
- This purpose is attained by providing a device according to the invention, in which the driving means are provided with a motor installed outside the winding element.
- the motor is placed on the side where said chain has been provided.
- the motor is designed to produce the motion for winding and unwinding the lower winding element.
- the screen is made up of one or several segments the gauze of which has different diameters.
- a different screen may be brought before the space, according to the weather conditions.
- figure 1 of which is a perspective view of a device for screening off a space according to the invention.
- a device (1) for screening off a space consists of a screen (2) which is longer than the distance (X) between the upper (3) and the lower roller system (4).
- the upper (3) and the lower roller system (4) respectively is provided with an upper (5) and a lower winding element (6) respectively, carried out in the form of a take-up roller, these take-up rollers (5,6) are intended for winding and unwinding the screen (2).
- the upper roller system (3) is attached to a fixed support (not represented in the figure), by means of a connection (7).
- the lower roller system (4) is not attached, but might also be attached fixedly.
- Both the upper (5) and the lower winding roller (6) are rotatably installed in one or several holders (8), which are provided with roller brackets (8a) in which the rollers may rotate and which are attached to a fixed support of the space to be screened off.
- the winding and unwinding motion of the winding rollers (5,6) is produced by means of a motor (not represented in the figure), which is connected to the lower winding roller (6) by means of a shaft stub (12) and a coupling shaft (16) for the shaft stub (12). Consequently, the motor is provided outside the lower winding roller (5). It should be noted that the motor may also be connected to the upper winding roller (5).
- transmission means (9) are provided in order to transmit the motion for winding and unwinding the lower winding roller (6) to the upper winding roller (5).
- These transmission means (9) comprise a chain (10) running over two chain wheels (11).
- These chain wheels (11) are provided on the coupling shaft (16).
- the upper winding roller (5) will also rotate when the lower winding roller (6) is rotating.
- the screen (2) will be unwound from the one roller and be taken up by the other roller.
- the chain (10) will be tightened by means of a chain tightener (14).
- a guard casing (15) is provided, in order to protect the chain (10) when moving.
- the motor is provided on the same side as the chain (10), such that the motor will have to exercise less power on the lower winding roller (6) to cause the upper winding roller (5) to be rotated at the same time.
- the lower winding roller (5) is provided with a tension spring (13).
- the screen (2) is provided with one or several segments (20a, 20b, 20c) each having a different diameter of the gauze.
- these segments (20a, 20b, 20c) are represented next to one another, but actually these segments (20a, 20b, 20c) are installed underneath one another over the screen (2).
- These segments (20a, 20b, 20c) are brought before the space to be screened off, depending on the weather conditions.
- This device may be applied, for instance, in cowsheds, which does not mean that it may not be used for other applications.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Window Of Vehicle (AREA)
- Manufacturing Of Electric Cables (AREA)
- Glass Compositions (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Credit Cards Or The Like (AREA)
- Blinds (AREA)
Abstract
Description
- The invention relates to a device for screening off a space, comprising an upper and a lower roller system, provided for rolling up and down the screen, in which:
- the screen is essentially longer than the distance between the upper and the lower roller system,
- the upper and lower roller systems being provided with an upper and a lower winding element respectively, provided to wind the screen up and down.
- Up to the present such a device is known from U.S. 4,766,941 in which an electrically driven window screening is described with selectively variable screening characteristics, which may be installed in a window opening for selectively blocking (by absorption or reflection), filtering and/or allowing the light to pass the window screening into a room for purposes such as energy control and/or decoration, etc. This window screening comprises an upper roller system, a lower roller system and a long, flexible screen which is wound around the upper and the lower roller systems, the screen being essentially longer than the distance between the upper and the lower roller system. Each of these roller systems comprises a long tube-shaped roller, supports which may be connected to the extremity of the roller for rotatably fixing the extremity of the rollers with respect to the window. The screen is wound up and down from the rollers, while they are rotating around their respective longitudinal axes. For each roller a drive is provided in order to drive the roller in either direction in order thus to wind the screen from one of the rollers onto the other roller. The drive comprises a direct drive motor, comprising an output shaft, being essentially coaxial with respect to the direct drive motor, and the direct drive motor being provided within the roller, the output shaft being coaxial with respect to the roller. The direct drive motor is attached to the frame in order to prevent it from rotating. Furthermore, each direct drive motor is provided with a torsion spring in order to maintain the screen tightened when it is wound up or unwound from one roller onto the other and when the screen is stationary and to compensate any changes in rotating speed when the screen is wound up or unwound. More particularly, this torsion spring functionally connects the output shaft of each direct drive motor to the respective roller. The torsion spring of one of the rollers is wound in one direction (e.g. clockwise), while the other spring, which is connected to the other direct drive motor is wound in the opposite direction (e.g. anti-clockwise), so that, when starting either of the direct drive motors differences as to rotational speed and starting time of the direct drive motors may be compensated.
- The disadvantage of such a device is, that two motors are used. Providing two motors has an adverse effect on the prime cost of the device and requires more maintenance. As these two motors have to ensure that one roller is wound up and the other roller is unwound, some sort of synchronisation between these two motors is required, which is not a simple matter.
- The purpose of the invention is to provide a device for screening off a space, not having these drawbacks.
- This purpose is attained by providing a device for screening off a space, comprising an upper and a lower roller system for winding up and unwinding the screen, in which:
- the screen is essentially longer than the distance between the upper and the lower roller system,
- the upper and lower roller systems are provided with an upper and a lower winding element respectively, provided to wind and unwind the screen,
- This has the advantage that maintenance is required for only one set of driving means, and no synchronization of the driving means of the upper and lower winding elements is needed, because these transmission means have been provided.
- In a preferred embodiment of a device according to the invention, the transmission means comprise a chain for transmitting said winding and unwinding motion.
- Another disadvantage of the known device described above is that both motors are provided within the upper and the lower roller respectively. Because the motors are provided within the rollers, maintenance and repairs on these motors has become more difficult.
- An additional purpose of the invention consists in providing a device for screening off a space as described above, but where the motor is easily accessible, e.g. for carrying out maintenance and repairs.
- This purpose is attained by providing a device according to the invention, in which the driving means are provided with a motor installed outside the winding element.
- In a preferred embodiment of a device according to the invention the motor is placed on the side where said chain has been provided.
- This has the advantage that the motor has to exercise less power on the winding element that is driven in order to cause the other winding element to be rotated simultaneously.
- Preferably, the motor is designed to produce the motion for winding and unwinding the lower winding element.
- In an advantageous embodiment of a device according to the invention, the screen is made up of one or several segments the gauze of which has different diameters.
- In this manner, a different screen may be brought before the space, according to the weather conditions.
- The invention will now be further explained by means of the following detailed description of a preferred device for screening off a space, according to the present invention. This description is only intended to give a clarifying example and to designate further advantages and particulars of the present invention, and therefore may on no account be interpreted as being a restriction of the field of application of the invention or of the patent rights set forth in the claims.
- In this detailed description reference is made, by means of reference numbers, to the attached drawings, figure 1 of which is a perspective view of a device for screening off a space according to the invention.
- A device (1) for screening off a space according to the invention, consists of a screen (2) which is longer than the distance (X) between the upper (3) and the lower roller system (4). The upper (3) and the lower roller system (4) respectively is provided with an upper (5) and a lower winding element (6) respectively, carried out in the form of a take-up roller, these take-up rollers (5,6) are intended for winding and unwinding the screen (2).
- The upper roller system (3) is attached to a fixed support (not represented in the figure), by means of a connection (7). In this type, the lower roller system (4) is not attached, but might also be attached fixedly.
- Both the upper (5) and the lower winding roller (6) are rotatably installed in one or several holders (8), which are provided with roller brackets (8a) in which the rollers may rotate and which are attached to a fixed support of the space to be screened off. The winding and unwinding motion of the winding rollers (5,6) is produced by means of a motor (not represented in the figure), which is connected to the lower winding roller (6) by means of a shaft stub (12) and a coupling shaft (16) for the shaft stub (12). Consequently, the motor is provided outside the lower winding roller (5). It should be noted that the motor may also be connected to the upper winding roller (5).
- Furthermore, transmission means (9) are provided in order to transmit the motion for winding and unwinding the lower winding roller (6) to the upper winding roller (5). When the motor is connected to the upper winding roller (5) the motion for winding and unwinding the upper winding roller (5) will be transmitted from the upper winding roller (5) to the lower winding roller (6). These transmission means (9) comprise a chain (10) running over two chain wheels (11). These chain wheels (11) are provided on the coupling shaft (16). In this manner because of the chain (10) the upper winding roller (5) will also rotate when the lower winding roller (6) is rotating. In this manner, the screen (2) will be unwound from the one roller and be taken up by the other roller. Furthermore, the chain (10) will be tightened by means of a chain tightener (14). Furthermore, a guard casing (15) is provided, in order to protect the chain (10) when moving.
- Preferably the motor is provided on the same side as the chain (10), such that the motor will have to exercise less power on the lower winding roller (6) to cause the upper winding roller (5) to be rotated at the same time. In order to compensate the difference in diameter between the upper (5) and the lower winding roller (6), the lower winding roller (5) is provided with a tension spring (13).
- The screen (2) is provided with one or several segments (20a, 20b, 20c) each having a different diameter of the gauze. In figure 1, these segments (20a, 20b, 20c) are represented next to one another, but actually these segments (20a, 20b, 20c) are installed underneath one another over the screen (2). These segments (20a, 20b, 20c) are brought before the space to be screened off, depending on the weather conditions. In figure 1:
-
segment 20a is used in case the sun is shining outside; -
segment 20b is used for stormy weather conditions outside; -
segment 20c is used when it is freezing outside. - This device may be applied, for instance, in cowsheds, which does not mean that it may not be used for other applications.
Claims (6)
- A device for screening off a space, comprising an upper (3) and a lower roller system (4), provided for winding and unwinding the screen (2), in which:the screen (2) is essentially longer than the distance (X) between the upper (3) and the lower roller system (4),the upper (3) and lower roller system (4) are provided with an upper (5) and a lower winding element (6) respectively, provided to wind and unwind the screen (2),
- Device according to claim 1, characterized in that the transmission means (9) comprise a chain (10) for transmitting said motion for winding and unwinding.
- Device according to claim 1 or 2, characterized in that the driving means are provided with a motor which is installed outside the winding element (5 or 6).
- Device according to any one of the claims 2 up to and including 4, characterized in that the motor is installed on the side, where said chain (10) is provided.
- Device according to claim 3 or 4, characterized in that the motor is designed for driving the motion for winding and unwinding the lower winding element (6).
- Device according to any one of the claims, characterized in that the screen (2) consists of one or several segments (20a, 20b, 20c) each having a different gauze diameter.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20214076U DE20214076U1 (en) | 2002-09-10 | 2002-09-10 | Vertical roller blind system for protection from sun, wind or frost. |
DE20214076U | 2002-09-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1398453A1 true EP1398453A1 (en) | 2004-03-17 |
EP1398453B1 EP1398453B1 (en) | 2008-06-04 |
Family
ID=7974995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03077459A Expired - Lifetime EP1398453B1 (en) | 2002-09-10 | 2003-08-06 | Device for screening off a space |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1398453B1 (en) |
AT (1) | ATE397711T1 (en) |
DE (2) | DE20214076U1 (en) |
DK (1) | DK1398453T3 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20315853U1 (en) | 2003-10-12 | 2004-03-04 | Zettl, Markus | Winding method for variable covering of surfaces with different types of fabric |
DE102008017723A1 (en) * | 2008-04-07 | 2009-10-08 | Weinor Gmbh & Co. Kg | Curtain for sun protection or privacy device, is wound or rewound based on winding shaft, and is developed from winding shaft, where front end of curtain is fastened or attached on retractable extension profile |
DE202009005007U1 (en) | 2009-07-09 | 2010-12-16 | Zettl, Horst | Winding device for covering wall openings or windows |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1539774A (en) * | 1922-01-06 | 1925-05-26 | Sato Ryuji | Window shade |
US4766941A (en) * | 1986-06-09 | 1988-08-30 | Sytron Corporation | Window shade with selectively variable shading characteristics |
US4815515A (en) * | 1987-05-27 | 1989-03-28 | Lee Song L | Structure of window shade |
-
2002
- 2002-09-10 DE DE20214076U patent/DE20214076U1/en not_active Expired - Lifetime
-
2003
- 2003-08-06 AT AT03077459T patent/ATE397711T1/en active
- 2003-08-06 DE DE60321434T patent/DE60321434D1/en not_active Expired - Lifetime
- 2003-08-06 DK DK03077459T patent/DK1398453T3/en active
- 2003-08-06 EP EP03077459A patent/EP1398453B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1539774A (en) * | 1922-01-06 | 1925-05-26 | Sato Ryuji | Window shade |
US4766941A (en) * | 1986-06-09 | 1988-08-30 | Sytron Corporation | Window shade with selectively variable shading characteristics |
US4815515A (en) * | 1987-05-27 | 1989-03-28 | Lee Song L | Structure of window shade |
Also Published As
Publication number | Publication date |
---|---|
DE60321434D1 (en) | 2008-07-17 |
DE20214076U1 (en) | 2003-05-08 |
DK1398453T3 (en) | 2008-09-08 |
ATE397711T1 (en) | 2008-06-15 |
EP1398453B1 (en) | 2008-06-04 |
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