US3407863A - Drum-type venetian blinds - Google Patents
Drum-type venetian blinds Download PDFInfo
- Publication number
- US3407863A US3407863A US598655A US59865566A US3407863A US 3407863 A US3407863 A US 3407863A US 598655 A US598655 A US 598655A US 59865566 A US59865566 A US 59865566A US 3407863 A US3407863 A US 3407863A
- Authority
- US
- United States
- Prior art keywords
- drum
- blinds
- slats
- tapes
- tape
- 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 - Lifetime
Links
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
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/34—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable roller-type; Roller shutters with adjustable lamellae
Definitions
- the present invention relates to Venetian blinds which are wound up on a drum.
- the slats are pivotally connected to guide tapes, and a beaded edge of the slats is pivotally connected to a draw tape that is secured to the drum, as is known in the art.
- the longitudinal edges of the slats of such blinds generally are headed.
- the slats are pivotally so connected to the tapes that they overlap when closed.
- the lower bead of one slat will strike the surface in a front of the upper head of the next lower slat, causing a not inconsiderable noise.
- This invention is directed to Venetian blinds that are wound up on a drum, including a series of slat members which are to be pivoted when the blinds are opened or closed, at least two guide tapes, at least two draw tapes and drum means for raising and lowering the blinds.
- the slats are pivotally connected to the guide tapes and draw tapes, the latter of which are secured to the drum means.
- the turning of the drum causes the pivotal slat members to pivot and the blinds to open.
- At least one pivot tape is provided for pivoting the pivotal slat members with means for connecting the pivot tape to at least the uppermost one of the slat members along the edge thereof which is uppermost when the blinds are closed.
- the drum means have a first larger and a second smaller winding radius with the draw tapes being wound on said first winding radius and means securing the pivot tape to the drum means for winding on the second winding radius.
- the pivot tape is taut when the blinds are completely lowered.
- the drum-type Venetian blinds of this invention provide a speed ratio for winding up the blind in the pivotal range of the slats which is different from that in the raising range of the blinds such that the slats are gently and quietly closed.
- An object of the invention is an arrangement for greatly reducing the noise caused by blind slats striking together, when the blinds are closed, which arrangement does not unfavorably effect installation of the blinds.
- FIGURE 1 is a front view of a part of the first embodiment of the invention, blinds open;
- FIGURE 2 is a side view of the same embodiment, showing the upper portion of the blinds
- FIGURE 3 is a rear view of the same embodiment, showing a part of the upper portion of the blinds;
- FIGURE 4 is a rear view of a second embodiment of the invention, showing a part of the blinds completely lowered;
- FIGURE 5 is a side of the second embodiment blinds open.
- FIGURE 6 is a side view of the second embodiment, blinds closed.
- the blinds have a series of slightly transversely bent slats 1 which may be formed of sheet metal.
- Each slat incorporates an upper outwardly beaded edge 2 and a lower inwardly beaded edge 3, as seen when the blinds are closed and from the outside.
- the rear face of each slat is pivotally connected to two steel guide tapes 4, FIGURE 1, respectively neighboring the two ends of the slats.
- a pin 5 is provided which is secured to a respective slat by a socket (not referenced) at each end of the slat.
- Each pin turns in a corresponding eye 6 made of sheet metal, and the two feet of which are spot welded or riveted to the tape 4.
- Each of the two tapes 4 runs in a respective rail 7.
- An end rail (not shown) is mounted on the lower ends of the tapes 4.
- each rail 7 terminates in a somewhat expanded portion that is connected to the narrower length of the rail by a shoulder (not referenced) that serves as a stop for a small block 15 mounted on the upper ends of the tapes 4.
- the wind-up drum 8 is shown in FIGURES 2 and 3.
- One end of the drum mounts a drive wheel (not shown) carrying a toothed gear meshing with gearing operated by a crank.
- T-wo steel draw tapes 9 are secured to the drum 8 by a metal strap 10.
- all of the slats 1 are pivotally secured to the tapes 9 along their beaded edges 2.
- each slat incorporates two cutouts located immediately next to the edge 2 and aligned with respective ones of the tapes 9.
- the head of an edge 2 thus acts as a pin in the two edges 11.
- the four uppermost slats are connected together by one or more tapes to form a portion of the blinds that cannot be pivoted and is always closed.
- the draw tapes 9 are connected to each of the four uppermost slats.
- a pivot tape 12 which may be of steel, is connected to the uppermost pivotal slat 1 near an end of the latter.
- This tape is secured to a portion 14 of the drum 8 which has a smaller diameter.
- the tape 12 can be wound up on the portion 14, and winds around it in the same direction as do the draw tapes 9 around their portion of the drum.
- the lower end of the pivot tape 12 makes a closed loop (FIG. 1) which passes through a cutout in the uppermost pivotal slat 1 which is somewhat wider than the tape 12, to form a connection between the slat and the tape that permits the slat to pivot. If the blinds are wide, two such tapes 12 can be provided, connected near each 3 end of the slat. In this case, the drum 8 will have a portion 14- for each tape 12.
- the uppermost pivotal slat has a thicker, stronger cross section than the other slats.
- the tape arrangement is such that over the pivotal range of the slats, the pivot tape 12 is taut and the draw tapes 9' are slack, so that when the slats are pivoted from their open to their closed position, by turning the drum 8 clockwise (as seen in FIG. 3), the slats are pivoted solely by action of the pivot tape 12.
- the diameter of the drum portion 14 is appreciably smaller than that of the rest of the drum 8, the tape 12 is rolled up much more slowly than the draw tapes 9.
- the winding radius for the tape 12 is smaller than for the tapes 9.
- the diameter of the drum portion 14 can be such with respect to the rest of the drum that the slats are gently and quietly closed even when the drum is rotated rapidly.
- the blinds again have a series of slats 21, of sheet metal, for example, having a slighly curved cross section, and incorporating upper and lower beaded edges 22 and 23, as seen in the closed position of the slats, FIGURE 4.
- Each of the slats is pivotally connected to two steel guide tapes 24-, respectively neighboring the slat ends.
- a pin 25 is secured by a plate (not referenced) on the rear slat face at each end of a slat.
- Each pin turns in a respective eye (not shown) made of sheet metal, and the two feet of which are spot welded or riveted to a respective tape 24.
- Each of the two tapes 24 runs in a respective rail 26.
- An end cross member 27 is connected to the lowermost slat 21 and also runs in the rails 26.
- each rail 27 terminates in a somewhat expanded portion (FIGS. 5 and 6) that is connected to the narrower length of the rail by a shoulder 40 that serves as a stop for a small block 28 mounted on each of the upper ends of the tapes 24.
- the wind-up drum 29 at one end mounts a drive wheel (not shown) carrying a toothed gear meshing with gearing operated by a crank.
- Two draw tapes 30 respectively located near the one and the other ends of the slats and a central pivot tape 31 are connected to the drum by respective straps 32 and 33.
- the slats 21 are pivotally connected by their beaded edge 22 to the tapes 30 and 31.
- each slat incorporates three cutouts spaced along its beaded edge 22 and aligned with an eye 37 mounted on one of the tapes 30 and 31.
- the eye may be made of a suitable synthetic plastic and is somewhat narrower than the cutout through which it passes.
- the beaded edges 22 thus acts as pins pivoting in the eyes 37 when the slats are turned.
- the tapes 3 (land 31 are composed of two sections: an upper length made of fabric secured to the drum 29 and connected at 34 to a lower length made of steel running along the slats.
- the wind-up drum 29 has two right-circular cylindrical end portions of normal diameter to which the draw tapes 30 are connected and a central right-circular cylindrical portion 36 of reduced diameter to which the pivot tape 31 is connected.
- the central portion 36 as best seen in FIGURES 5 and 6, is eccentrically located with respect to the axis of the rest of the drum 29. The arrangement is such that when the blinds are completely lowered and closed, as shown in FIGURE 6, the plane defined by the axis of the central portion 36 and the axis 38 of the rest of the drum 29 is approximately perpendicular to the portion of the tape 31 extending from the central drum portion 36.
- the tapes 30 and 31 are so arranged, as seen in FIG- URE 5, that at least over the pivotal range of the slats the draw tapes 30 are slack and the tape 31 is taut, so that when the slats are pivoted from their open to their closed position, by turning the drum 29 clockwise (as seen in FIGURE 5), the slats are pivoted solely by action of the pivot tape 31. Since the distance between the axis 38 of the rest of drum 29 and that part 39 of the surface of the central drum portion 36 where the tape 31 begins to wind around the central portion is appreciably smaller than the diameter of the rest of the drum, the tape 31 is wound up much more slowly than the draw tapes 30, over the pivotal range of the slats.
- the tape 31 is mound up ever more slowly, because this distance continuously decreases. This distance is also called the winding radius.
- the rate at which the tape 31 is wound up can be so chosen that the blinds are gently and quietly closed, even when the drum is turned at maximum speed.
- the central drum portion 36 may take other forms.
- the portion for example, may be elliptical, or some other similar shape, in cross section.
- the shape of the central drum portion in cross section is such that it has the desired eifect over the pivotal range of the slats.
- the shape preferably results in the distance between the surface part 39 and the axis 38 of the rest of the drum being smallest just before the blinds are completely closed.
- the dilference in the rates at which the draw tapes 30, on the one hand, and the tape 31, on the other, are unwound becomes progressively smaller when the blinds are opened. This difference is a maximum just before the blinds completely close and a minimum just before the blinds completely open.
- the surface of the central drum portion 36 upon which the pivot tape 31 is wound, at the point thereof where the tape 12 begins to wind around the surface when the blinds are about to completely close may pass through the axis of rotation 38 of the rest of the drum 29. This assures that the slats 21 will be brought almost to a standstill just before they completely close.
- FIGURES 4-6 several spaced pivot tapes 31 may be employed connected to a common central drum portion 36; and, with very wide blinds, several drum portions 36 of reduced diameter, spaced along the length of drum, may be advantageous.
- Venetian blinds that are wound up on a drum, including a series of slat members at least some of which are to be pivoted when the blinds are opened or closed, at least two guide tapes, drum means for raising and lowering the blinds, means pivotally connecting at least those slats which are to be pivoted to said guide tapes, at least two draw tapes, means securing said draw tapes to said drum means, and means pivotally connecting each slat member along the edge thereof which is uppermost when the blinds are closed to each said draw tape, said guide tapes remaining stationary when the blinds are completely lowered and further turning of said drum causing the pivotal slat members to pivot and the blinds to open:
- the improvement consisting of at least one pivot tape for pivoting the pivotal slat members, means for connecting said pivot tape to at least the uppermost one of the pivotal slat members along the edge thereof which is uppermost when the blinds are closed, said drum means having a first larger and a second smaller winding radius, said draw tapes being wound on said first winding radius, mean securing said pivot tape to said drum means for winding on said second winding radius, said pivot tape being taut when the blinds are completely lowered.
- Venetian blinds as set forth in claim 1 including first and second winding surfaces, as part of said drum means, associated respectively with said first and second winding radii, each said first and second surfaces defining a center of rotation, and the center of rotation of said second surface being eccentric with respect to that of said first surface.
- Venetian blinds as set forth in claim 6, wherein said second winding surface, at least over the area thereof used when pivoting the pivotal slats to open and close the blinds defines at least part of an ellipse.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Blinds (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1669665A CH432795A (de) | 1965-12-03 | 1965-12-03 | Rollamellenstore |
CH47966A CH434672A (de) | 1966-01-14 | 1966-01-14 | Rollamellenstore |
Publications (1)
Publication Number | Publication Date |
---|---|
US3407863A true US3407863A (en) | 1968-10-29 |
Family
ID=25684691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US598655A Expired - Lifetime US3407863A (en) | 1965-12-03 | 1966-12-02 | Drum-type venetian blinds |
Country Status (5)
Country | Link |
---|---|
US (1) | US3407863A (fr) |
DE (1) | DE1659907B1 (fr) |
DK (1) | DK117796B (fr) |
FR (1) | FR1503175A (fr) |
NL (1) | NL6616777A (fr) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3642050A (en) * | 1969-06-30 | 1972-02-15 | Renato Piana | Roll-type blinds for windows |
US20100212842A1 (en) * | 2009-02-20 | 2010-08-26 | Peter Bichler | Roller blind and member therefore |
US20140262071A1 (en) * | 2013-03-15 | 2014-09-18 | Hunter Douglas Inc. | Roll-up coverings for architectural openings and related methods, systems and devices |
US20140299281A1 (en) * | 2008-08-26 | 2014-10-09 | Hunter Douglas Inc. | Roll-up retractable covering for architectural openings |
WO2014186300A1 (fr) * | 2013-05-12 | 2014-11-20 | Solexel, Inc. | Stores et rideaux solaires photovoltaïques pour bâtiments résidentiels et commerciaux |
WO2016195746A1 (fr) * | 2015-06-03 | 2016-12-08 | Gilmer Timothy K | Stores vénitiens à dispositif de levage à un seul ressort |
US20170247941A1 (en) * | 2014-09-10 | 2017-08-31 | Hunter Douglas, Inc. | Roll-up coverings for architectural openings and related methods, systems and devices |
US20180328104A1 (en) * | 2003-08-20 | 2018-11-15 | Hunter Douglas Inc. | Retractable shade with collapsible vanes |
US12098592B2 (en) | 2023-07-19 | 2024-09-24 | Hunter Douglas Inc. | Roll-up coverings for architectural openings and related methods, systems and devices |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2022929A3 (fr) * | 2007-07-28 | 2013-10-16 | Griesser Holding AG | Rideau ainsi que dispositif de fixation et procédé de liaison de bandes d'un rideau |
FR2921964A1 (fr) * | 2007-10-09 | 2009-04-10 | Bubendorff Sa | Tablier pour systeme d'occultation a lames orientables et volet roulant comportant un tel tablier |
FR2934308B1 (fr) | 2008-07-22 | 2010-09-10 | Bubendorff | Dispositif de tablier notamment pour systeme d'occultation et/ou de fermeture de batiment |
FR2934306B1 (fr) | 2008-07-24 | 2013-10-25 | Bubendorff | Tablier pour systeme d'occultation et/ou de fermeture a lames orientables. |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2840156A (en) * | 1955-11-11 | 1958-06-24 | Griesser Ag | Venetian blind |
US2987120A (en) * | 1958-08-26 | 1961-06-06 | Griesser Ag | Venetian blind assembly |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH270004A (de) * | 1949-03-25 | 1950-08-15 | Ag Metallbau | Rolljalousie. |
DE900608C (de) * | 1950-06-15 | 1953-12-28 | Metallbau A G | Rolljalousie mit schwenkbaren Lamellen |
-
1966
- 1966-11-29 NL NL6616777A patent/NL6616777A/xx unknown
- 1966-11-30 DE DE19661659907 patent/DE1659907B1/de active Pending
- 1966-12-02 US US598655A patent/US3407863A/en not_active Expired - Lifetime
- 1966-12-02 DK DK625566AA patent/DK117796B/da unknown
- 1966-12-02 FR FR85990A patent/FR1503175A/fr not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2840156A (en) * | 1955-11-11 | 1958-06-24 | Griesser Ag | Venetian blind |
US2987120A (en) * | 1958-08-26 | 1961-06-06 | Griesser Ag | Venetian blind assembly |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3642050A (en) * | 1969-06-30 | 1972-02-15 | Renato Piana | Roll-type blinds for windows |
US20180328104A1 (en) * | 2003-08-20 | 2018-11-15 | Hunter Douglas Inc. | Retractable shade with collapsible vanes |
US10604996B2 (en) * | 2003-08-20 | 2020-03-31 | Hunter Douglas Inc. | Retractable shade with collapsible vanes |
US20140299281A1 (en) * | 2008-08-26 | 2014-10-09 | Hunter Douglas Inc. | Roll-up retractable covering for architectural openings |
US10724298B2 (en) | 2008-08-26 | 2020-07-28 | Hunter Douglas Inc. | Roll-up retractable covering for architectural openings |
US9587430B2 (en) * | 2008-08-26 | 2017-03-07 | Hunter Douglas Inc. | Roll-up retractable covering for architectural openings |
US20100212842A1 (en) * | 2009-02-20 | 2010-08-26 | Peter Bichler | Roller blind and member therefore |
US20140262071A1 (en) * | 2013-03-15 | 2014-09-18 | Hunter Douglas Inc. | Roll-up coverings for architectural openings and related methods, systems and devices |
US9359813B2 (en) * | 2013-03-15 | 2016-06-07 | Hunter Douglas Inc. | Roll-up coverings for architectural openings and related methods, systems and devices |
US10465442B2 (en) | 2013-03-15 | 2019-11-05 | Hunter Douglas Inc. | Roll-up coverings for architectural openings and related methods, systems and devices |
WO2014186300A1 (fr) * | 2013-05-12 | 2014-11-20 | Solexel, Inc. | Stores et rideaux solaires photovoltaïques pour bâtiments résidentiels et commerciaux |
US11867431B2 (en) | 2013-05-12 | 2024-01-09 | Sigmagen, Inc. | Solar photovoltaic blinds and curtains for residential and commercial buildings |
US20240191909A1 (en) * | 2013-05-12 | 2024-06-13 | Sigmagen, Inc. | Solar photovoltaic blinds and curtains for residential and commercial buildings |
US20170247941A1 (en) * | 2014-09-10 | 2017-08-31 | Hunter Douglas, Inc. | Roll-up coverings for architectural openings and related methods, systems and devices |
US11156031B2 (en) * | 2014-09-10 | 2021-10-26 | Hunter Douglas, Inc. | Roll-up coverings for architectural openings and related methods, systems and devices |
US12037842B2 (en) | 2014-09-10 | 2024-07-16 | Hunter Douglas Inc. | Roll-up coverings for architectural openings and related methods, systems and devices |
US9702184B2 (en) | 2015-06-03 | 2017-07-11 | Timothy K. Gilmer | Venetian blinds with single spring loaded lift |
WO2016195746A1 (fr) * | 2015-06-03 | 2016-12-08 | Gilmer Timothy K | Stores vénitiens à dispositif de levage à un seul ressort |
US12098592B2 (en) | 2023-07-19 | 2024-09-24 | Hunter Douglas Inc. | Roll-up coverings for architectural openings and related methods, systems and devices |
Also Published As
Publication number | Publication date |
---|---|
DE1659907B1 (de) | 1970-06-25 |
DK117796B (da) | 1970-06-01 |
FR1503175A (fr) | 1967-11-24 |
NL6616777A (fr) | 1967-06-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3407863A (en) | Drum-type venetian blinds | |
US4473101A (en) | Sun blind | |
US3460602A (en) | Flexible closure tensioning device | |
US1882982A (en) | Rolling screen retaining means | |
US7438113B2 (en) | Window covering having operable segments | |
US3429355A (en) | Blinds | |
US2912048A (en) | Blind arrangement | |
US2921628A (en) | Blind having relatively adjustable slats | |
US3857433A (en) | Foldable shutter | |
US2987120A (en) | Venetian blind assembly | |
US2354489A (en) | Black-out means | |
CN213654719U (zh) | 一种高可靠性遮光百叶窗帘 | |
US1242177A (en) | Rolling screen. | |
US3439726A (en) | Cord pull for louvered or slatted shutters or blinds | |
US2128163A (en) | Spring controlled venetian blind | |
US1005584A (en) | Shutter. | |
US2985447A (en) | Locking and operating mechanism for a closure | |
US2572944A (en) | Folding metal awning | |
US2226131A (en) | Window shade | |
US620969A (en) | Shutter | |
US3426653A (en) | Folding louvered closures | |
US1355608A (en) | Screen, curtain, and the like | |
US1388801A (en) | Window, door, or porch screen | |
US1578641A (en) | Side inclosure for automobiles | |
US1184208A (en) | Roller fly-screen. |