CN109431079B - Reel type music stand - Google Patents
Reel type music stand Download PDFInfo
- Publication number
- CN109431079B CN109431079B CN201910018019.1A CN201910018019A CN109431079B CN 109431079 B CN109431079 B CN 109431079B CN 201910018019 A CN201910018019 A CN 201910018019A CN 109431079 B CN109431079 B CN 109431079B
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- China
- Prior art keywords
- lath
- plate
- music
- board
- supporting plate
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B19/00—Reading-desks; Lecterns; Pulpits, i.e. free-standing
- A47B19/002—Free-standing music stands
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B19/00—Reading-desks; Lecterns; Pulpits, i.e. free-standing
- A47B19/002—Free-standing music stands
- A47B2019/004—Free-standing music stands with adjustable feet
Landscapes
- Auxiliary Devices For Music (AREA)
- Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
Abstract
The invention discloses a roll-type music stand, which comprises a base, an upright post arranged on the base and a music board used for placing music scores; the spectrum plate comprises a supporting plate which is arranged in a longitudinal strip shape, one end of the supporting plate is provided with a hinge block which is formed by extending outwards in the thickness direction, and the hinge block is hinged with the upper end of the upright post, so that the supporting plate can rotate to a position which is attached to the upright post; the two sides of the supporting plate in the width direction are respectively hinged with strip-shaped battens in sequence, and a hinge shaft between each batten and the adjacent batten or the supporting plate is positioned at one side facing the hinge block; the music board also comprises a locking piece used for fixing the supporting board and the lath in a plate shape, the supporting board and the lath are provided with mounting parts matched with the locking piece, and the locking piece is detachably mounted on the mounting parts. The invention has the advantages of ingenious structural design, convenient storage, good use stability and the like.
Description
Technical Field
The invention relates to the technical field of music score supporting devices, in particular to a roll-type music stand.
Background
The music stand is used for placing music scores during playing, is suitable for any musical instrument, and is generally applicable to two types of music stands in the prior art, wherein one type of music stand is a music stand, and the other type of music stand is a folding music stand. The music stand is commonly called a large music stand, and the music board is manufactured by stamping a whole iron sheet. The music board is large in width, the support frame is thick in tube, and the stability is good although the overall stability is good, but because the music board is not foldable and the music board is heavy, the music board is inconvenient to carry, and the music board is only suitable for being used in families or professionally developed. Folding music stands are commonly called small music stands, are foldable as a whole, are foldable, are light and easy to carry, and are the most suitable choice for frequent outer use or for children to use in class.
At present, the music score board that is used for placing the musical instrument music stand on the market is mainly frame-type structure, and the music score board fretwork after the expansion, and music score board surface unevenness influences the stable placing of music score.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problems that: how to provide a structural design ingenious, accomodate the convenience, the good roll-type music stand of stability in use.
In order to solve the technical problems, the invention adopts the following technical scheme:
a roll-type music stand comprises a base, a stand column arranged on the base and a music score plate used for placing music scores; the music board is characterized by comprising a support board which is arranged in a strip shape along the longitudinal direction of the music board, wherein one end of the support board is provided with a hinge block which is formed by extending outwards along the thickness direction, and the hinge block is hinged with the upper end of the upright post so that the support board can rotate to a position which is attached to the upright post; the two sides of the supporting plate in the width direction are respectively hinged with strip-shaped strips in sequence, and a hinge shaft between each strip and the adjacent strip or the supporting plate is positioned at one side facing the hinge block, so that the strip can rotate towards the side where the hinge block is positioned; the music board also comprises a locking piece used for fixing the supporting board and the lath in a plate shape, the supporting board and the lath are provided with mounting parts matched with the locking piece, and the locking piece is detachably mounted on the mounting parts.
By adopting the structure, when in storage, the locking parts are detached from the mounting parts of the supporting plate and the battens, the supporting plate is rotated to the position where the supporting plate is attached to the upright post, and the battens on two sides of the supporting plate can wrap the upright post towards the direction of the upright post due to the loss of the fixation of the locking parts, so that the whole music stand is stored in the shape of a bamboo slip into a cylinder, and the music stand is convenient to carry. When the music score box is used, the battens are unfolded, the locking pieces are installed, the supporting plate is rotated to a proper angle, and the music score can be placed.
Further, the installation part is a guide hole which is coaxially and transversely arranged on the support plate and the batten in a penetrating way along the transverse direction of the spectrum plate, the locking piece is a fixing pin which is slidably arranged in the guide hole, the length of the fixing pin is consistent with the width of the corresponding support plate or the batten, one outward end of the fixing pin in the guide hole of the batten positioned on the outer side is provided with a pressing part which is formed by extending, and the length of the pressing part is 5-10 mm.
The guide holes on the support plate and the battens are coaxially communicated, and the fixing pins are consistent with the corresponding support plate or the battens in width, so that the fixing pins can be completely inserted into the guide holes, and the rotation of the battens is not affected. When the folding type music board is used, the hinge shaft between the batten and the adjacent batten or the supporting plate is upwards, the music board is enabled to be plate-shaped by utilizing the gravity of the batten, the pressing part of the fixing pin is inwards pressed, the fixing pin can be sequentially pushed to be inserted into the adjacent batten or the supporting plate, the batten and the supporting plate are locked into a whole, the fixing pin at the other end extends out of the batten, and when the folding type music board is stored, the extending end is pressed into the batten, so that all the fixing pins can be completely contained in the corresponding guide holes.
Further, the guide hole on each support plate or slat includes a first hole section and a second hole section coaxially disposed, and the second hole Duan Xianjie is disposed at an end of the first hole section toward the pressing portion; the lengths of the first hole section and the second hole section are consistent, and the diameter of the first hole section is smaller than that of the second hole section; the diameter of the fixing pin is consistent with that of the first hole section, and one end facing the pressing part is provided with a boss consistent with that of the second hole section.
Like this, because the fixed pin is unanimous with the diameter of first hole section, and has the boss unanimous with second hole section diameter for the fixed pin is when pressing towards adjacent guiding hole, and the fixed pin is difficult for directly coming off in the guiding hole, and the fixed pin is jacked into in the second hole section of adjacent guiding hole also more easily smooth and easy moreover.
Further, the supporting plate and the batten are made of polycarbonate or polyurethane; one side of the supporting plate and the lath, which faces the hinging block, is connected with a lining cloth which is arranged in a covering way, and the whole size of the lining cloth is consistent with that of the spectrum plate; the battens are connected with the adjacent battens or the supporting plate through the lining cloth and rotate relatively.
Polycarbonate or polyurethane is a common material for manufacturing mobile phone shells, and along with the rapid development of mobile phones in recent years, related industries of the mobile phone shells matched with the polycarbonate or polyurethane are also greatly developed, so that the application technology of the polycarbonate or polyurethane is mature, and the cost is reduced. The mobile phone shell adopts a process of combining polycarbonate or polyurethane with lining cloth, and the technology is mature, so that the mobile phone shell is used for manufacturing the spectrum plate, the manufacturing quality of the spectrum plate can be ensured, and the manufacturing cost can be reduced.
Further, a magnet is buried in the batten, and the magnet is positioned at the position of the batten towards one end part of the upright post; the spectrum plate further comprises a barrier strip made of ferromagnetic materials, and the length of the barrier strip is consistent with the width of the spectrum plate.
Because ferromagnetic material can be absorbed by magnet, and the magnet has been buried in the lath, during the use, just can set up the blend stop along the width direction of music board to by the magnet in the lath, both can utilize magnetic force to make backup pad and lath fixed into platelike music board, can utilize the blend stop to support the music book lower extreme of placing on the music board again, avoid the music book landing, improve the stability of placing of music book.
Further, a positioning groove which is arranged in a penetrating way along the width direction of the spectrum plate is formed in one side of the strip, which is away from the lining cloth, and corresponds to the position of the magnet; the width of the positioning groove is consistent with the width of the barrier strip.
Like this, when the blend stop is held by magnet, the blend stop is located the constant head tank to can prevent that the blend stop from sliding downwards under the action of gravity of music book, improve the fixed stability of blend stop and the stability of placing of music book.
Further, the magnetic poles of each of the magnets in the thickness direction of the spectrum plate are uniform.
Therefore, when the storage is carried out, the magnetic force of the magnets can be utilized to draw and tighten the rolled batten, and the stable storage can be realized without binding an extra rope.
Further, two magnets are buried in each slat and are respectively positioned at two ends of the slat.
When the storage is carried out, the upper end and the lower end of the batten can be kept in a rolling state under the action of magnetic force, so that the storage stability is improved.
Further, the barrier strip comprises a bottom plate and a baffle plate vertically arranged on the bottom plate, so that the end face of the barrier strip is T-shaped; the bottom of the bottom plate is also connected with a magnetic strip with magnetism, and the magnetic pole of the magnetic strip is matched with the magnetic pole of the magnet.
Furthermore, the magnet is a neodymium iron boron strong magnet, and the barrier strip is made of ferrite stainless steel and martensite stainless steel.
In conclusion, the invention has the advantages of ingenious structural design, convenient storage, good use stability and the like.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of the spectrum plate section in fig. 1.
Fig. 3 is a schematic plan view of a spectrum plate.
Fig. 4 is an enlarged schematic view of the portion a in fig. 3.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The specific implementation method comprises the following steps: as shown in fig. 1 to 4, a roll-type music stand includes a base 1, a pillar 2 mounted on the base 1, and a music sheet 3 for placing a music score; the spectrum plate 3 comprises a supporting plate 31 which is arranged in a strip shape along the longitudinal direction of the spectrum plate 3, one end of the supporting plate 31 is provided with a hinge block which is formed by extending outwards along the thickness direction, and the hinge block is hinged with the upper end of the upright post 2 so that the supporting plate 31 can rotate to a position which is attached to the upright post 2; the two sides of the supporting plate 31 in the width direction are respectively hinged with strip-shaped laths 32 in sequence, and a hinge shaft between each lath 32 and the adjacent lath 32 or the supporting plate 31 is positioned at one side facing the hinging block, so that the lath 32 can rotate towards the side of the hinging block; the spectrum plate 3 further comprises a locking member 33 for fixing the supporting plate 31 and the lath 32 in a plate shape, the supporting plate 31 and the lath 32 are provided with mounting parts matched with the locking member 33, and the locking member 33 is detachably mounted on the mounting parts.
By adopting the structure, when in storage, the locking parts are detached from the mounting parts of the supporting plate and the battens, the supporting plate is rotated to the position where the supporting plate is attached to the upright post, and the battens on two sides of the supporting plate can wrap the upright post towards the direction of the upright post due to the loss of the fixation of the locking parts, so that the whole music stand is stored in the shape of a bamboo slip into a cylinder, and the music stand is convenient to carry. When the music score box is used, the battens are unfolded, the locking pieces are installed, the supporting plate is rotated to a proper angle, and the music score can be placed.
In practice, the mounting portion is a guide hole coaxially penetrating through the support plate 31 and the lath 32 along the transverse direction of the spectrum plate 3, the locking member 33 is a fixing pin slidably disposed in the guide hole, the length of the fixing pin is consistent with the width of the corresponding support plate 31 or lath 32, one end of the fixing pin located outside the guide hole of the lath is provided with a pressing portion formed by extending, and the length of the pressing portion is 5-10 mm.
The guide holes on the support plate and the battens are coaxially communicated, and the fixing pins are consistent with the corresponding support plate or the battens in width, so that the fixing pins can be completely inserted into the guide holes, and the rotation of the battens is not affected. When the folding type music board is used, the hinge shaft between the batten and the adjacent batten or the supporting plate is upwards, the music board is enabled to be plate-shaped by utilizing the gravity of the batten, the pressing part of the fixing pin is inwards pressed, the fixing pin can be sequentially pushed to be inserted into the adjacent batten or the supporting plate, the batten and the supporting plate are locked into a whole, the fixing pin at the other end extends out of the batten, and when the folding type music board is stored, the extending end is pressed into the batten, so that all the fixing pins can be completely contained in the corresponding guide holes.
In particular, the locking member may be a latch plate with a length consistent with a transverse length of the spectrum plate, the mounting portion is a latch block protruding from one side of the support plate and the slat, which faces the hinge block, and one side of the latch block, which faces the support plate and the slat in a length direction, is provided with a latch groove penetrating through the spectrum plate in a transverse direction, and the latch plate is clamped in the latch groove. The locking piece can also be bent into a U-shaped clamping groove by adopting a thin steel plate with the length consistent with the transverse length of the spectrum plate, the width of the clamping groove is consistent with the thicknesses of the supporting plate and the lath, and when the locking piece is used, the clamping groove is aligned with the tops of the supporting plate and the lath and clamped in, so that the upper ends of the supporting plate and the lath are clamped in the same clamping groove to form a fixed limit. Of course, other fastener arrangements may be used by those skilled in the art to secure the support plate and the slats.
In practice, the guide holes on each support plate 31 or slat 32 comprise a first hole section and a second hole section coaxially arranged, and the second hole Duan Xianjie is arranged at the end of the first hole section facing the pressing portion; the lengths of the first hole section and the second hole section are consistent, and the diameter of the first hole section is smaller than that of the second hole section; the diameter of the fixing pin is consistent with that of the first hole section, and one end facing the pressing part is provided with a boss consistent with that of the second hole section.
Like this, because the fixed pin is unanimous with the diameter of first hole section, and has the boss unanimous with second hole section diameter for the fixed pin is when pressing towards adjacent guiding hole, and the fixed pin is difficult for directly coming off in the guiding hole, and the fixed pin is jacked into in the second hole section of adjacent guiding hole also more easily smooth and easy moreover.
In practice, the support plate 31 and the lath 32 are made of polycarbonate or polyurethane; a lining cloth 34 is connected to one side of the supporting plate 31 and the lath 32 facing the hinging block, and the lining cloth 34 is consistent with the whole size of the spectrum plate 3; the lath 32 is connected to the adjacent lath 32 or the supporting plate 31 through the lining cloth 34, and rotates relatively.
Polycarbonate or polyurethane is a common material for manufacturing mobile phone shells, and along with the rapid development of mobile phones in recent years, related industries of the mobile phone shells matched with the polycarbonate or polyurethane are also greatly developed, so that the application technology of the polycarbonate or polyurethane is mature, and the cost is reduced. The mobile phone shell adopts a process of combining polycarbonate or polyurethane with lining cloth, and the technology is mature, so that the mobile phone shell is used for manufacturing the spectrum plate, the manufacturing quality of the spectrum plate can be ensured, and the manufacturing cost can be reduced.
In practice, the magnet 35 is buried in the lath 32, and the magnet 35 is positioned at a position of the lath 32 facing to one end of the upright 2; the spectrum plate 3 further comprises a barrier strip 36 made of ferromagnetic material, and the length of the barrier strip 36 is consistent with the width of the spectrum plate 3.
Because ferromagnetic material can be absorbed by magnet, and the magnet has been buried in the lath, during the use, just can set up the blend stop along the width direction of music board to by the magnet in the lath, both can utilize magnetic force to make backup pad and lath fixed into platelike music board, can utilize the blend stop to support the music book lower extreme of placing on the music board again, avoid the music book landing, improve the stability of placing of music book.
In practice, the side of the lath 32 facing away from the lining cloth 34 is provided with a positioning groove penetrating along the width direction of the spectrum plate 3, and the positioning groove corresponds to the position of the magnet 35; the width of the positioning groove is consistent with the width of the stop bar 36.
Like this, when the blend stop is held by magnet, the blend stop is located the constant head tank to can prevent that the blend stop from sliding downwards under the action of gravity of music book, improve the fixed stability of blend stop and the stability of placing of music book.
In practice, the poles of each of the magnets 35 are uniform in the thickness direction of the spectrum plate 3.
Therefore, when the storage is carried out, the magnetic force of the magnets can be utilized to draw and tighten the rolled batten, and the stable storage can be realized without binding an extra rope.
In practice, two magnets 35 are embedded in each slat 32 and are respectively positioned at two ends of the slat 32.
When the storage is carried out, the upper end and the lower end of the batten can be kept in a rolling state under the action of magnetic force, so that the storage stability is improved.
In practice, the barrier strip 36 includes a bottom plate, and a baffle plate vertically disposed on the bottom plate, so that the end surface of the barrier strip 36 is T-shaped; the bottom of the bottom plate is also connected with a magnetic strip with magnetism, and the magnetic pole of the magnetic strip is matched with the magnetic pole of the magnet 35. Therefore, after the barrier strip is detached, the barrier strip is stored together with the batten and the supporting plate, and the barrier strip is lost when being stored by utilizing the magnetic force between the magnetic strip and the magnet.
In practice, the magnet 35 is a strong nd-fe-b magnet, and the barrier strip 36 is made of ferritic stainless steel or martensitic stainless steel.
In the concrete implementation, the upright post can be a multi-stage telescopic rod or a steel pipe with the length consistent with the longitudinal length of the spectrum plate; the base can be a sucker arranged at the bottom of the upright post, can also be a tripod hinged at the bottom of the upright post and is foldable, and the structure of the base is a mature existing product and is widely applied to products such as a mobile phone support, a photographic support and the like.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. A roll-type music stand comprises a base (1), a column (2) arranged on the base (1) and a music board (3) for placing music scores; the music board (3) is characterized by comprising a supporting board (31) which is arranged in a strip shape along the longitudinal direction of the music board (3), one end of the supporting board (31) is provided with a hinge block which is formed by extending outwards along the thickness direction, and the hinge block is hinged with the upper end of the upright post (2) so that the supporting board (31) can rotate to a position which is attached to the upright post (2); the two sides of the supporting plate (31) in the width direction are respectively hinged with strip-shaped laths (32) in sequence, and a hinge shaft between each lath (32) and the adjacent lath (32) or the supporting plate (31) is positioned at one side facing the hinging block, so that the lath (32) can rotate towards the side where the hinging block is positioned; the music board (3) further comprises a locking piece (33) used for fixing the supporting board (31) and the lath (32) into a plate shape, the supporting board (31) and the lath (32) are provided with mounting parts matched with the locking piece (33), and the locking piece (33) is detachably mounted on the mounting parts;
the installation part is a guide hole which is coaxially arranged on the supporting plate (31) and the lath (32) along the transverse direction of the spectrum plate (3), the locking piece (33) is a fixed pin which is slidably arranged in the guide hole, the length of the fixed pin is consistent with the width of the corresponding supporting plate (31) or lath (32), one outward end of the fixed pin in the guide hole of the lath positioned at the outer side is provided with a pressing part which is formed by extension, and the length of the pressing part is 5-10 mm;
a magnet (35) is buried in the lath (32), and the magnet (35) is positioned at the position of the lath (32) towards one end part of the upright post (2); the spectrum plate (3) further comprises a blocking strip (36) made of ferromagnetic materials, the length of the blocking strip (36) is consistent with the width of the spectrum plate (3), and the blocking strip (36) can be arranged along the width direction of the spectrum plate (3) and is attracted by a magnet (35) in the lath (32).
2. The roll-type music stand as claimed in claim 1, wherein the guide hole on each of the support plates (31) or the laths (32) includes a first hole section and a second hole section coaxially arranged, and the second hole Duan Xianjie is provided at an end of the first hole section facing the pressing portion; the lengths of the first hole section and the second hole section are consistent, and the diameter of the first hole section is smaller than that of the second hole section; the diameter of the fixing pin is consistent with that of the first hole section, and one end facing the pressing part is provided with a boss consistent with that of the second hole section.
3. The roll-type music stand according to claim 1, characterized in that the support plate (31) and the lath (32) are both made of polycarbonate or polyurethane; one side of the supporting plate (31) and the lath (32) facing the hinging block is connected with a lining cloth (34) which is arranged in a covering way, and the whole size of the lining cloth (34) is consistent with that of the spectrum plate (3); the batten (32) is connected with the adjacent batten (32) or the supporting plate (31) through the lining cloth (34) and rotates relatively.
4. A roll-type music stand as claimed in claim 3, characterized in that the side of the strip (32) facing away from the lining cloth (34) is provided with a positioning slot penetrating along the width direction of the music board (3), the positioning slot corresponding to the position of the magnet (35); the width of the positioning groove is consistent with the width of the barrier strip (36).
5. A rolled music stand as claimed in claim 1, characterized in that the poles of each of the magnets (35) are uniform in the thickness direction of the spectrum plate (3).
6. The roll-type music stand as claimed in claim 5, characterized in that two magnets (35) are embedded in each of the strips (32) and are respectively located at both ends of the strips (32).
7. The roll-type music stand as claimed in claim 1, wherein the barrier rib (36) includes a bottom plate, and a baffle plate vertically provided on the bottom plate so that an end surface of the barrier rib (36) is T-shaped; the bottom of the bottom plate is also connected with a magnetic strip with magnetism, and the magnetic pole of the magnetic strip is matched with the magnetic pole of the magnet (35).
8. The rolled music stand according to claim 1, characterized in that the magnet (35) is a neodymium-iron-boron strong magnet, and the barrier strip (36) is made of ferritic stainless steel and martensitic stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910018019.1A CN109431079B (en) | 2019-01-09 | 2019-01-09 | Reel type music stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910018019.1A CN109431079B (en) | 2019-01-09 | 2019-01-09 | Reel type music stand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109431079A CN109431079A (en) | 2019-03-08 |
| CN109431079B true CN109431079B (en) | 2023-10-20 |
Family
ID=65544062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910018019.1A Active CN109431079B (en) | 2019-01-09 | 2019-01-09 | Reel type music stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109431079B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111374444B (en) * | 2020-03-12 | 2022-01-14 | 安阳师范学院 | Music training music stand |
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| CN209595063U (en) * | 2019-01-09 | 2019-11-08 | 湖北理工学院 | A kind of roll type music easel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| USD540564S1 (en) * | 2005-01-20 | 2007-04-17 | Shanghai Max Precision Instrument Co., Ltd. | Music stand |
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|---|---|---|---|---|
| CN201240212Y (en) * | 2008-08-18 | 2009-05-20 | 林依曼 | Assembling combined type drawing board |
| CN201327707Y (en) * | 2008-12-16 | 2009-10-14 | 王清林 | Coillayer portable music stand |
| JP2011227327A (en) * | 2010-04-21 | 2011-11-10 | Merry Music Co Ltd | Underlay for score, and aid for music stand |
| CN202847308U (en) * | 2012-10-19 | 2013-04-03 | 黄杨剑 | Portable type drawing board |
| CN102941778A (en) * | 2012-11-20 | 2013-02-27 | 无锡商业职业技术学院 | Detachable drawing board |
| CN103021387A (en) * | 2012-12-06 | 2013-04-03 | 宁波音王电声股份有限公司 | Folding type music score stand |
| JP5363642B1 (en) * | 2012-12-13 | 2013-12-11 | 真哉 折崎 | Music score holder |
| CN205292095U (en) * | 2015-11-25 | 2016-06-08 | 肖淏文 | Foldable drawing board of edge rolling |
| CN205439795U (en) * | 2016-01-04 | 2016-08-10 | 安康学院 | Drawing board |
| DE202017100504U1 (en) * | 2017-01-31 | 2017-05-10 | Helge Löbler | music stand |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109431079A (en) | 2019-03-08 |
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