EP0937583A2 - Vorrichtung zum Wenden von Blättern - Google Patents
Vorrichtung zum Wenden von Blättern Download PDFInfo
- Publication number
- EP0937583A2 EP0937583A2 EP99101839A EP99101839A EP0937583A2 EP 0937583 A2 EP0937583 A2 EP 0937583A2 EP 99101839 A EP99101839 A EP 99101839A EP 99101839 A EP99101839 A EP 99101839A EP 0937583 A2 EP0937583 A2 EP 0937583A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- turning
- drum
- motor
- head
- star
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D9/00—Bookmarkers; Spot indicators; Devices for holding books open; Leaf turners
- B42D9/04—Leaf turners
- B42D9/08—Leaf turners having radial arms, one per leaf, operated successively
Definitions
- the invention relates to a device for turning sheets, especially sheet music, brochure pages or the like a head holding the leaves, on which the leaves moving turning organs are attached, which by a Drive mechanism clockwise and counterclockwise are rotatable.
- Such a device is for example from US-A 1 720 827 known.
- the turning organs are designed as turning arms, which protrude radially from the head and at their ends Wear brackets on the top edges of the music sheets are put on.
- the drive device for these turning organs consists of sleeves that are coaxially one above the other in a tubular housing are stored; in the inner wall of the sleeves are two diametrically opposite, axially continuous recesses incorporated, engage in the two projections, which radially from the protrude from the top of a snail as it rotates climbs axially within the sleeves and thereby one each Sleeves and the protruding turning arm by 180 °.
- DE-C 213 334 is a sheet turner, the one Plurality of C-shaped wire hangers that bears on their underside Have handles that have to be operated by hand.
- the invention has for its object a device for Turning sheets, such as sheet music or others To provide documents, preferably can be operated by motor and despite mechanically simple Construction works reliably and precisely.
- the turning elements one on the front edge of a fixed plate of the head attached, rotating reversible star on which several, preferably four turning elements with parallel to the axis of the Drum-aligned turning rollers, each on one of attack each protruding protrusion.
- the invention relates to a device for turning single sheets available that are primarily designed for musicians who rarely have a hand free to turn the page, for example orchestral musicians, accordion players, piano players or conductors.
- the head that picks up the leaves can either be on an existing stand or detachably attached to a keyboard instrument or in one Standpipe of a floor case, the foot switch, Includes power supply or batteries for a motor.
- An application the invention in other fields is also advantageous possible, for example in sales rooms or at exhibition stands, where brochure pages and advertising material are presented and a mechanical scrolling should be made possible.
- the An engine is attached to the head, which has a gearbox both the drum and - in the same direction of rotation - the reversible star drives.
- This motor can be operated using a foot switch for forward and Backward scrolling can be operated.
- the gearbox can be designed so that depending on the number of frames that are evenly spaced the outer edge of the drum, this is a partial rotation performs, at which the turning star at the same time the front frame rotates about 180 °.
- the reversible star with a planetary gear be connected, on the carrying the turning elements, rotatable Bridge assigned to each turning element to a fixed one Planet gears orbiting the sun rim are stored.
- the legs are that protrude from each planet gear, so attached that they in Resting position of the turning star alternately radially inwards and point radially outwards.
- Figures 1 and 2 and 6 and 7 show that the Device for turning sheet music or similar documents consists of a total of 10 head, the from a fixed, cup-shaped housing 12 and one therein rotatably mounted drum 14 is composed. From the An eccentric bolt 16 protrudes downward from the housing 12, the on a hollow rod 18 one in Figures 1 and 2 indicated, conventional music stand 20 against rotation can be plugged on.
- Figures 2 and 7 also show that the bolt 16 is inclined at an angle of about 5 ° to the rear Housing 12 protrudes so that the entire head 10 one in In the use position, which is inclined backwards for a secure position of the frames to be turned and already turned 22 cares.
- FIG. 12 In the center of the housing 12 is an essentially vertical axis 24 attached to a lower plate 26 and an upper Plate 28 is fixed, which is fixed in the housing 12 are attached.
- the two plates 26 and 28 are by stud bolts 30 connected and kept parallel to each other at a distance.
- Figure 7 shows that the lower plate 26 on its rear end bends with the bolt 16 so that the head 10 assumes its inclined position shown in FIG. 2.
- FIG. 7 shows that the drum 14 consists of a lower disk 32 and an upper disc 34 formed by columns 36 connected and kept at a distance.
- the Columns 36 extend parallel to the axis 24.
- On this Axis 24 are the two disks 32 and 34 via roller bearings 38 rotatably added.
- both in the lower disk 32 and in the upper disk 34 the rotatable drum 14 are at a constant distance from each other Bores 40 incorporated, each axially cursed with each other.
- Each pair of holes is used to hold one Frame 22, two axially one above the other for this purpose arranged pins 42 carries (see FIG. 4).
- the pins 42 are firmly attached to flags 44 which are spaced from the upper or stick out from the lower edge of each frame 22. It is convenient if a pin 42 - in the example of FIG.
- each pair of pins is longer than the other pin 42, which is a Hook into the bores 40 of the two disks 32 and 34 facilitated.
- Figure 4 also shows that from the bottom of each Frame 22 projects a projection 46 which is in the plane of Frame 22 and the two flags 44 attached above it.
- FIG. 5 shows that each frame 22 one up has open slot 48 in one or two sheet music can be inserted.
- frame 22 suspended in the drum 14 there are a total of 50 pages to play with Available.
- the music sheets and frames 22 can be in any any order can be used effortlessly, so that too long, difficult pieces of music without manual intervention can be played through. Thanks to the round system, everyone can desired position without resetting to a starting position start playing.
- Figures 6 and 7 show that on the underside of the lower Washer 32 at a distance from it and with the aid of screws 50 an opaque slit ring 52 is attached, in the Slits 54 open radially inward are incorporated are (see FIG. 8), each with one in the radial direction Align bore 40 for receiving the frame 22.
- the slots 54 are used to control the gradual rotary movement of the Drum 14, for which a light barrier 56 and one Photoelectric sensor 56 'are assigned to one edge of the upper one Plate 28 are attached (see FIG. 8).
- the light barrier 56 which is in the idle state located just above one of the slots 54, delivering after each Turning a hold signal to a control circuit 68 for the Engine 58.
- the pinion 64 has twelve teeth while the gear 62 for driving the drum has 100 teeth.
- the motor 58 - In the embodiment, a DC geared motor with a Output speed of 20 rpm and a voltage of 6 volts, the can be operated by a power supply unit or by batteries - is actuated by means of a foot switch, the pinion 64 rotates the gear 62 by four teeth so that the drum 14 by the angle ⁇ is rotated by 14.4 °, which is the angular distance corresponds between two slots 54.
- Figure 8 further shows that the gear 62 with a pinion 70th combs, which is wound on an axis 72 which between the two plates 26 and 28 is mounted (see FIG. 7).
- the pinion 70 has 32 teeth and is used during the turning step turned by four teeth.
- On the axis 72 is above the lower plate 26 a gear 74, which has 64 teeth and consequently turns eight teeth further.
- the gear 74 meshes with a pinion 76, which has 32 teeth and on one Axle 78 fastened parallel to axis 72 is mounted, which between the lower plate 26 and the upper plate 28 in Housing 12 is attached.
- the gear 62 with a pinion 70th combs which is wound on an axis 72 which between the two plates 26 and 28 is mounted (see FIG. 7).
- the pinion 70 has 32 teeth and is used during the turning step turned by four teeth.
- On the axis 72 is above the lower plate 26 a gear 74, which has 64 teeth and consequently turns eight teeth further.
- FIGS. 6 to 8 further show that above the top plate 84 on each shaft 86 of the four planet gears 88 as C-shaped support 92 serving as the turning element is attached, a bearing axis 96 is seated between its radial legs 94, on which two turning rollers 98 are freely rotatable.
- the arrangement is such that when the Reversible star 82 ( Figures 6 to 9) the legs 94 of the carrier 92nd and thus the turning rollers 98 alternately radially inwards and are directed radially outwards.
- the gears of the described gears are preferably made of Made of plastic, which is advantageous on the one hand Total weight of the device and on the other hand favorable to the Smooth running affects when turning the page.
- the frame 22 be made of plastic.
- the two disks 32 and 34 the drum 14 can be made of aluminum or plastic become; in the case of plastic, the holes 40 are as low-friction bearing for the pins 42 of the frame 22 sufficient, while with an aluminum production for this Plain bearings should be provided.
- a Cover ring 100 attached, as well as the housing 12 on the one hand prevents the ingress of dirt and on the other hand as Screen is used.
- the same purpose has a cover 102, the mounted between the two disks 32 and 34 of the drum 14 is.
- the motor shaft rotates in one step 66 by 120 ° the drum 14 by 14.4 ° while moving simultaneously the turning star 82 turns 90 °.
- Everybody turns Planet gear 88 by 180 ° around itself.
- the planet gear 88 simultaneously rotates 90 ° on the sun gear 90, rotates the bearing axis 96 of the turning rollers 98 at each step Turning by the sum of the two angles of 90 and 180 °, i.e. by 270 °.
- FIGS. 9 to 16 This process is shown in FIGS. 9 to 16.
- FIG. 15 shows an intermediate angle of 75 ° of rotation of the Turning star 82, i.e. 12 ° of the drum 14.
- the turned frame 22 has its end position, that of FIG. 9 shown basic position corresponds. Since following half Rotation (position of Figure 14) the engine speed - like explained - if delayed, there is a "soft landing" of the turned frame 22.
- the time to flip a frame is 22 including the braking movement 11 ⁇ 2 seconds; this is the Control circuit 68 designed accordingly.
- the device can optionally also be equipped with a stepper motor operate. Although this requires a more complex Control circuit 68, but the mechanical structure can the elimination of the slit ring 52 and the light barriers 56, 56 ' be simplified.
- the device is by means of operated a foot switch.
- a correspondingly designed control circuit 68 to provide an automatic page turning, for example with adjustable pause times forward and backward.
- the drive by means of a Stepper motor an advantage.
- this for example in advertising and sales, e.g. for presentation stands at trade fairs and exhibitions.
- the power of motor 58 (DC motor or stepper motor) and the dimensions and size of the drum 14 and the Reversible stars 82 depend on the respective application. Same thing applies to the size and shape of the frame 22.
Landscapes
- Toys (AREA)
Abstract
Description
Claims (10)
- Vorrichtung zum Wenden von Blättern, insbesondere Notenblättern, Prospektblättern oder dergleichen, mit einem die Blätter aufnehmenden Kopf (10), an dem die Blätter ergreifende Wendeorgane angebracht sind, welche von einer Antriebseinrichtung im Uhrzeigersinn und im Gegenuhrzeigersinn drehbar sind, dadurch gekennzeichnet, daß der Kopf (10) eine in beiden Richtungen um eine im wesentlichen vertikale Achse (24) drehbare Trommel (14) aufweist, die aus einer unteren Scheibe (32) und einer oberen Scheibe (34) besteht und an deren Außenrand in gleichmäßigen Abständen Rahmen (22) schwenkbar aufgehängt sind, die zur Aufnahme von jeweils mindestens einem Blatt dienen und an denen die Wendeorgane zum Eingriff kommen.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Wendeorgane einen am vorderen Rand einer ortsfesten Platte (26) des Kopfes (10) angebrachten, drehbaren Wendestern (82) aufweisen, der mehrere, vorzugsweise vier Wendeelemente (92) mit parallel zur Achse (24) der Trommel (14) ausgerichteten Wenderollen (98) hat, die an jeweils einem von jedem Rahmen (22) abstehenden Vorsprung (46) angreifen.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß an einer festen Platte (26) des Kopfes (10) ein Motor (58) angebracht ist, der über ein Getriebe die Trommel (14) und in gleicher Richtung den Wendestern (82) antreibt.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Motor (58) mittels eines Fußschalters betätigbar ist.
- Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß der Motor (58) ein Schrittmotor ist.
- Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß der Motor (58) ein Gleichstromgetriebemotor ist, dessen Drehschritte über einen mit der Trommel (14) drehbaren Schlitzring (52) steuerbar sind.
- Vorrichtung nach einem der Ansprüchen 3 bis 6, dadurch gekennzeichnet, daß der Motor (58) unterhalb der unteren Scheibe (32) der Trommel (14) befestigt ist.
- Vorrichtung nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, daß der Wendestern (82) mit einem Planetengetriebe verbunden ist, an dessen die Wendeelement (92) tragendem, drehbarem Steg (84) die jedem Wendeelement (92) zugeordneten, um ein feststehendes Sonnenrad (90) kreisenden Planetenräder (88) gelagert sind.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß von jedem Planetenrad (88) wenigstens ein mit diesem drehbarer Schenkel (94) des zugehörigen Wendeelementes (92) radial absteht, der eine zur Achse (24) der Trommel (14) Parallele Lagerachse (96) trägt, auf der wenigstens eine Wenderolle (98) gelagert ist.
- Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß bei vier Wendeelementen (92) deren Schenkel (94) in Ruhestellung des Wendesterns (82) abwechselnd radial nach innen und radial nach außen gerichtet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29802973U | 1998-02-20 | ||
DE29802973U DE29802973U1 (de) | 1998-02-20 | 1998-02-20 | Vorrichtung zum Wenden von Notenblättern |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0937583A2 true EP0937583A2 (de) | 1999-08-25 |
EP0937583A3 EP0937583A3 (de) | 1999-12-08 |
Family
ID=8052973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99101839A Withdrawn EP0937583A3 (de) | 1998-02-20 | 1999-01-28 | Vorrichtung zum Wenden von Blättern |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0937583A3 (de) |
DE (1) | DE29802973U1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105500954A (zh) * | 2016-01-26 | 2016-04-20 | 华侨大学 | 助残书桌 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106564321B (zh) * | 2016-11-03 | 2018-09-28 | 宿州学院 | 一种电动乐谱翻页装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE218343C (de) * | ||||
GB796558A (en) * | 1956-04-04 | 1958-06-11 | Bram Blez | Improved leaf turner |
-
1998
- 1998-02-20 DE DE29802973U patent/DE29802973U1/de not_active Expired - Lifetime
-
1999
- 1999-01-28 EP EP99101839A patent/EP0937583A3/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE218343C (de) * | ||||
GB796558A (en) * | 1956-04-04 | 1958-06-11 | Bram Blez | Improved leaf turner |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105500954A (zh) * | 2016-01-26 | 2016-04-20 | 华侨大学 | 助残书桌 |
Also Published As
Publication number | Publication date |
---|---|
EP0937583A3 (de) | 1999-12-08 |
DE29802973U1 (de) | 1998-06-18 |
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