KR101670186B1 - Blackboard for broadcast educatuon - Google Patents

Blackboard for broadcast educatuon Download PDF

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Publication number
KR101670186B1
KR101670186B1 KR1020150121195A KR20150121195A KR101670186B1 KR 101670186 B1 KR101670186 B1 KR 101670186B1 KR 1020150121195 A KR1020150121195 A KR 1020150121195A KR 20150121195 A KR20150121195 A KR 20150121195A KR 101670186 B1 KR101670186 B1 KR 101670186B1
Authority
KR
South Korea
Prior art keywords
projection
frame
fixing bracket
blackboard
horizontal frame
Prior art date
Application number
KR1020150121195A
Other languages
Korean (ko)
Inventor
오용열
Original Assignee
주식회사 부경교재
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 주식회사 부경교재 filed Critical 주식회사 부경교재
Priority to KR1020150121195A priority Critical patent/KR101670186B1/en
Application granted granted Critical
Publication of KR101670186B1 publication Critical patent/KR101670186B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/04—Blackboards
    • 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
    • A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
    • A47B97/001—Wall mounting or suspension arrangements for blackboards or the like
    • 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
    • A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
    • A47B97/04—Easels or stands for blackboards or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • H04N5/655—Construction or mounting of chassis, e.g. for varying the elevation of the tube

Abstract

The present invention relates to a blackboard for audiovisual education that can be moved with ease. According to the present invention, the inner space of a quadrangular frame is divided into three in a horizontal direction with a rail being formed inside each of upper and lower portions, blocking plates are disposed on both sides of the space divided into three, the blocking plates have a space opened toward the center, and a projection TV moving along the rail is built into one of the pair of blocking plates. The present invention can be moved with ease, and thus allows a lecture to be given in an outdoor space and allows writing on the blackboard and audiovisual education.

Description

{Blackboard for broadcast educatuon}

The present invention relates to a blackboard for audiovisual education, and more particularly, to a blackboard for audiovisual education in which a projection television for audiovisual education is installed on an easy-to-move blackboard.

Generally, the blackboard is used to attach to a wall in a school or a lecture room, and in the past, the blackboard had to be provided with a separate projection television for audiovisual education.

In order to solve such a problem, a blackboard installed on a front wall of a lecture room such as a school or an academy for use in education for educational purposes is disclosed in Korean Patent Publication No. 2003-0028643, A frame body provided on both sides of the central frame body so that the side frame body is detachably attached to the frame body; A monitor installed in the central frame for various video education; A writing plate having a writing surface which is installed on the side frame to be wiped on both sides of the monitor; And an elevating and lowering means for elevating and lowering the central frame body up and down from the side frame body to adjust the height of the monitor.

Another conventional technique is disclosed in Japanese Patent Publication No. 1504741, in which a main chalkboard positioned on a front wall surface of a lecture room or the like, auxiliary chalkboards located on one side or both sides of the main chalkboard, And a TV which is guided by a rail and is slidably supported by a decorative frame and is selected from any one of the above-mentioned auxiliary blackboards, wherein the central lower frame body and the auxiliary lower frame body of the frame body are transversely Each of the operation holes is pierced so that the operation hole at the center is positioned by a lock of ferrous metal having a length corresponding to the width of the main board, and the slide hole is pierced through the operation hole drilled in the auxiliary lower frame, And a permanent magnet is attached at one end to the boundary position between the lock bar and the movable bar Jeonghamyeo, surrounding the TV ornament a frame body of the moving support and the moving bar is moved so that the decorative frame body for mounting the permanent magnet position having a slide-type television, characterized in that for fixing the board is determined with device public registration.

However, the conventional techniques are mounted on a board fixed on a wall, so that there is a problem that a TV for audiovisual education must be installed separately for audiovisual lecturing in the outdoors.

It is an object of the present invention to provide a blackboard for audiovisual education capable of lecturing and audiovisual education even in the field.

The inside of a square frame in which rails are respectively formed on upper and lower inner surfaces of the audio-visual educational board, which is easy to move according to the present invention, is divided into three in the horizontal direction and a space opened to the center on both sides of the three- And a projection TV which moves along the rail is built in any one of the pair of shielding plates.

As described above, the blackboard for audiovisual education, which is easy to move according to the present invention, is easy to move, and it is also possible to provide a board and an audiovisual education, and it is possible to store a power line and a chalk or a marking pen in a space portion under the projection TV It is effective.

1 is a photograph of a blackboard for audiovisual education according to the present invention.
2 is an enlarged view of a moving frame of the blackboard for audiovisual education according to the present invention.
3 is a detailed photograph of a part of the blackboard for audiovisual education of the present invention.
4 is a photograph showing a state in which a projection TV of a blackboard for audiovisual education according to the present invention is fastened to a moving frame.
5 is a photograph of a fixing bracket sissy of a projection TV of a blackboard for audiovisual education of the present invention.
6 is a perspective view of a fixing bracket of a projection TV of the elevating and lowering type blackboard of the present invention.
7 is a side view of the fixing bracket of the projection TV of the elevating and lowering type blackboard of the present invention.
8 is a perspective view of another embodiment of the fixing bracket of the projection TV of the ascending / descending type blackboard of the present invention.
FIG. 9 is a detailed perspective view of a portion of an upper part of a fixing bracket of a projection TV of a rising / falling type blackboard according to the present invention. FIG.
10 is a detailed perspective view of a portion of a lower side according to still another embodiment of a fixing bracket of a projection TV of the elevating and lowering type blackboard of the present invention.
11 is a front schematic view of another embodiment of a mobile frame on which a projection TV of a blackboard for audiovisual education according to the present invention is installed.
12 is an internal schematic diagram of another embodiment of a mobile frame on which a projection TV of a blackboard for audiovisual education of the present invention is installed.
FIG. 13 is a view showing another embodiment of a mobile frame on which a projection TV of a blackboard for audiovisual education according to the present invention is installed. FIG.

In the inside of a rectangular frame 100 in which rails 110 are formed on the upper and lower inner surfaces, respectively, the space is divided into three horizontally, and on both sides of the three divided spaces, And a projection TV 500 is provided inside the one of the pair of the shielding plates 200. The projection TV 500 moves along the rail 110, .

And a wheel 600 is mounted on a lower surface of the rectangular frame 100.

And an auxiliary blackboard (not shown) that moves along the rail 110 is formed in the inside of the blind board 200 in which the projection TV 500 is not incorporated.

A space portion 420 is formed in a lower space portion of the projection TV 500 and a sliding door 440 for covering a space portion 420 is mounted on a front surface of the living space portion 420 .

Hereinafter, the blackboard for audiovisual education according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a photograph of a blackboard for audiovisual education according to the present invention, and FIG. 2 is an enlarged photograph of a moving frame of the blackboard for audiovisual education of the present invention.

The present invention relates to a blackboard for audiovisual education which is easy to move as shown in FIGS. 1 and 2. More particularly, the present invention relates to an interior of a rectangular frame 100 in which rails 110 are formed on upper and lower inner surfaces, Is provided with a shield plate (200) having an area divided into three in the horizontal direction and a space opened toward the center at both sides of the divided area.

A projection TV 500 is installed in the inside of the cover plate 200 in any one of the above-mentioned places to move along the rail 110.

And a wheel 700 is mounted on the lower surface of the rectangular frame 100 to facilitate movement.

In particular, an auxiliary blackboard (not shown) that moves along the rail 110 is formed inside the shading plate 200 in which the projection TV 500 is not incorporated.

Although the auxiliary blackboard (not shown) may be all mounted in the inner space of the pair of the cover plates 200, the auxiliary blackboard 300 is built in only one place of the covering plate 200 in this embodiment.

The projection TV 500 is mounted inside the frame 400 so that the projection TV 500 can be easily moved on the upper and lower surfaces of the frame 400 so as to be in contact with the rails 110 A roller 410 is mounted.

The projection TV 500 is installed in the inside of the shading plate 200 on which the auxiliary blackboard (not shown) is not mounted, and on the top and bottom of the projection TV 500, A roller (not shown) is mounted.

3 is a detailed photograph of a part of the blackboard for audiovisual education of the present invention.

As shown in FIG. 3, the projection TV 500 is installed in the moving frame 400, and the space portion 420 is formed in the upper portion and the lower portion of the projection TV 500, respectively.

The partition 430 is installed on the entire surface of the space 420 formed below the projection TV 500 so that the length of the partition 430 is relatively smaller than the inner width of the moving frame 400.

The remaining area portion allows the sliding door 440 to be mounted.

The sliding door 450 is a sliding type so that the sliding door 450 can be moved to the moving frame 400 so that the sliding door 440 can be easily slid on the lower surface of the projection TV 500 and the inner upper surface of the moving frame 400 ).

In the space part 420, a power line extending from the projection TV 500 and a plug coupled together at the end of the power line are stored.

 The projection TV 500 installed in the inner space of the screen 200 during the audiovisual training is moved to the front side of the board 100 and then sliding to open the sliding door 440 to open the space 420 Draw out the stored power line to the outside.

By plugging the plug of the projection TV 500 into the outlet, electricity is supplied to the projection TV 500 to allow smooth audiovisual education.

When the audiovisual education is finished, the plug connected to the outlet is removed, the plug is stored in the space portion 420 together with the power line, the space portion 420 is closed as the sliding door 440, (500) to the inside of the shielding plate (200).

FIG. 4 is a photograph showing a state in which the projection TV of the blackboard for audiovisual education according to the present invention is fastened to the moving frame, FIG. 5 is a photograph of a fixing bracket of the projection TV of the blackboard for audiovisual education of the present invention, FIG. 7 is a side view of a fixing bracket of a projection TV of a blackboard for audiovisual education of the present invention.

As shown in FIG. 4, the projection TV 500 is installed in the moving frame 400.

A horizontal frame 460 in the form of a plate is mounted between a pair of horizontal frames, and the fixing bracket 470 is fixed to the horizontal frame 460 in a direction perpendicular to the horizontal frame 460. And the projection TV 500 is fixed to the fixing bracket 470.

Particularly, in the front surface of the horizontal frame 460, a latching protrusion 461 having a space opened upward is formed in the longitudinal direction of the horizontal frame 460, and the latching protrusions 461 are vertically As shown in FIG.

The fixing bracket 470 is fixed upright on the horizontal frame 460. The fixing bracket 470 has hooks 471 on both sides of which are opened to the lower side to engage the hooks 461 of the horizontal frame 460 As shown in Fig.

The hook 471 located on the upper side is referred to as the upper hook 471-1 and the hook 471 located on the lower side is referred to as the lower hook 471-2.

Therefore, the hooks 471 of the fixing bracket 470 are caught by the latching jaws 461 of the horizontal frame 460 and are fastened to each other.

The body of the fixing bracket 470 is formed with a plurality of through holes 472 extending in the front-rear direction and spaced apart from each other by a predetermined distance in the vertical direction. The bolts are inserted through the through holes 472, 500 are fixed.

Particularly, a fastening piece 477 is protruded from the lower side of the body of the fixing bracket 470 in the protruding direction of the hook 471.

The fastening piece 477 has a triangular shape in plan view, and the fastening piece 477 and the horizontal frame 460 are fixed to each other, so that the fixing bracket 470 can be more firmly fixed.

FIG. 8 is a perspective view of another embodiment of a fixing bracket of a projection TV of the present invention for an audiovisual education blackboard, FIG. 9 is a detail perspective view of a portion of an upper side of a fixing bracket of a projection TV of the present invention, Is a detail perspective view of a lower side portion according to another embodiment of the fixing bracket of the projection TV of the blackboard for audiovisual education of the present invention.

When the interval between the pair of horizontal frames 460 is not constant, the upper hook 471-1 and the lower hook 471-2 can not be fastened to the hook 461 of the horizontal frame 460, The spacing between the upper and lower hooks 471-1 and 471-2 is made to be variable and the fastening pieces 477 are also mounted so as to be movable up and down the fixing bracket 470 as shown in FIG.

That is, the lower hook 471-2 is fixed to the fixing bracket 470 and the upper hook 471-1 can be moved up and down along the length of the fixing bracket 470, So that it is possible to cope with the fluidity.

A protruding piece 473 is formed on the upper surface of the fixing bracket 470 in a direction in which the hook 471 is protruded and the opposite side edges of the fixing bracket 470 in the direction in which the hook 471 is formed are connected to the rails R And a pair of upper hooks 471-1 are seated on the rails like an LM block.

A support protrusion 476-1 is formed horizontally between the pair of upper hooks 471-1. An adjustment bolt 476 having a screw thread at an end of the support protrusion is fixed to a length of the fixing bracket 470 And an adjusting nut 475 is screwed to the thread of the adjusting bolt 476. The adjusting nut 475 is screwed to the threaded portion of the adjusting bolt 476. [

The adjusting nut 475 is fastened to the fixing shaft 474, which is fixed to the lower surface of the protruding piece 473,

Accordingly, when the adjusting nut 475 is rotated, the fixing shaft 474 is fixed, and accordingly, the upper hook 471-1 is rotated according to the extent to which the adjusting bolt 476 screwed to the adjusting nut 475 is inserted It is moved up and down.

A pair of guide plates 478 are formed on both sides of the fastening piece 477 along the longitudinal direction of the fixing bracket 470 and the guide plate 478 is provided with guide plates 478 along the longitudinal direction of the guide plate 478 A guide lane groove 479 made up of a vertical groove and a plurality of horizontal grooves spaced apart from the vertical groove by a predetermined distance is formed.

On the other hand, the fastening piece 477 is separated from the fastening bracket 470, and a guide protrusion 477-1 protruding from both sides of the fastening piece 477 is inserted into the pair of guide frame grooves 479, At both ends of the guide protrusion 477-1, a stopper 477-2 is formed so as to prevent the guide protrusion 477-1 from coming off the guide lane groove 479. [

The prevention piece 477-2 is preferably formed to have a larger area than the vertical grooves and the horizontal grooves so as not to come off the guide groove 479. [

Therefore, the fastening piece 477 can be freely moved to a desired position while being fastened to the guide rail groove 479.

FIG. 11 is a front schematic view of a mobile frame on which a projection TV of the present invention is installed, and FIG. 12 is a front view of another mobile frame on which a projection TV of the present invention is installed. FIG. 13 is a state diagram illustrating another embodiment of a mobile frame on which a projection TV of a blackboard for audiovisual education according to the present invention is installed.

11 to 13, the moving frame 400 includes a horizontal frame 400-1 and a vertical frame 400-2, and the vertical frame 400- 2 and a pair of intermediate frames 400-3 in parallel with each other.

At this time, a space portion 420 is formed between the intermediate frame 400-3 and the lower horizontal frame 400-1 where the projection TV 500 is installed. In the space portion 420, The power line W and the plug P of the TV 500 can be stored.

However, since the power line and the plug stored in the space 420 may be twisted when stored, it is necessary to keep the power line without being twisted.

For this purpose, a vertical diaphragm 480 is mounted so as to cross the intermediate frame 400-3 and the lower horizontal frame 400-1. The diaphragm 480 is provided with a through hole (481).

The through hole 481 is formed in a hollow body with an inner hollow hole, and the outer side thereof is inserted with a compression ring 481-1 of an elastic member having a tapered surface inclined from one end to the other end .

Therefore, if the power line W is inserted into the hollow hole of the compression ring 481-1 and one end of the compression ring 481-1 having a small diameter is inserted into the through hole 481 to be forcedly inserted, 481-1) fix the power line while tightening the power line.

In addition, a plurality of holes are formed in the partition plate 480, and a ring-shaped elastic material packing 482-1 is attached to the holes so that chucks or marking pens can be stored in the packing 482-1 .

Therefore, even when the writing instrument, which is likely to be broken like chalk, is mounted, it is fixed by the packing 482-1 so that even a wobble can be easily attached to the hole without breaking.

The plurality of holes are indicated by the writing implement insertion holes 482.

A plurality of diaphragm grooves A are formed on the lower surface of the intermediate frame 400-3 and the upper surface of the lower transverse frame 400-1 at regular intervals.

Accordingly, the position of the diaphragm 480 can be adjusted according to the object stored in the space portion 420.

Particularly, by mounting the hinged door 440-1 having the hinge H mounted on the lower end of the sliding door 440, the sliding door 440 is closed as shown in Fig. 13, -1) so that the inside of the power line can not be seen.

In addition, the cover plate 430 has a hinge H mounted on an upper end thereof and is fastened to the intermediate frame 400-3 so that it can function as a door.

A handle B is formed on the cover plate 430 and the sliding door 440, respectively, so that the cover plate and the sliding door can be conveniently opened and closed.

As described above, the blackboard for audiovisual education, which is easy to move according to the present invention, has a remarkable effect such that it is easy to move, and lectures can be performed even in the open field, and a book and audio-visual education are possible.

100. Rectangular frame 110. Rail
200. Cover plate
300. Secondary board 310. Rollers
400. Moving frame 400-1. Horizontal frame 400-2. Vertical frame
400-3. Intermediate frame 410. roller 420. space portion
430. Cover plate 440. Sliding door 450. Sliding rail
460. Horizontal frame 461. Jaw 470. Fixing bracket
471. Hooks 471-1. Upper hook 471-2. Lower hook
472. Through hole 473. Protrusion 474. Fixed shaft
475. Adjusting nut 476. Adjusting bolt 476-1. Support projection
477. Conclusion 477-1. Guide protrusion 477-2. Prevention
478. Guide plate 479. Guide lane groove 480. Diaphragm
481. Through hole 481-1. Compression ring 482. Writing hole insertion hole
482-1. packing
500. projection TV
600. Up / down means
A. Diaphragm groove B. Handle H. Hinge
P. Plug R. Rail W. Power line

Claims (3)

The inner space of the rectangular frame 100, on which the rails 110 are formed on the upper and lower inner surfaces, respectively, is divided into three spaces in the horizontal direction, In the blackboard for audiovisual education in which a board 200 is installed and a projection TV 500 moving along the rail 110 is installed in any one of the pair of the cover boards 200,
An auxiliary blackboard for moving along the rail 110 is formed in the inside of the shielding plate 200 without the projection TV 500,
A space portion 420 is formed in a lower space portion of the projection TV 500 and a sliding door 440 is mounted on a front surface of the space portion 420 to shield the space portion 420,
The projection TV 500 is installed in a moving frame 400 moving along the rail 110. A space 420 is formed in the upper part and the lower part of the projection TV 500,
A partition 430 is provided on a front surface of the space 420 formed below the projection TV 500. The partition 430 is installed to have a length smaller than the inner width of the moving frame 400, The area portion is equipped with the sliding door 440,
The sliding door 450 is a sliding type so that the sliding door 450 can be moved to the moving frame 400 so that the sliding door 440 can be easily slid on the lower surface of the projection TV 500 and the inner upper surface of the moving frame 400 In the width direction of the vehicle,
The moving frame 400 is a rectangular frame having a horizontal frame and a vertical frame. The horizontal frame 460 is mounted between the pair of horizontal frames. The horizontal frame 460 is orthogonal to the horizontal frame 460, And the projection TV 500 is fixed to the fixing bracket 470,
A latching protrusion 461 is formed in the front of the horizontal frame 460 in the longitudinal direction of the horizontal frame 460. The latching protrusions 461 extend in the vertical direction Are spaced apart from each other by a predetermined distance,
The fixing bracket 470 is installed upright on the horizontal frame 460. The fixing bracket 470 has hooks 471 having openings on both sides of the fixing bracket 470 to be engaged with the hooks 461 of the horizontal frame 460, So as to be coupled to each other,
The hooks 471 of the fixing bracket 470 are caught by the latching protrusions 461 of the horizontal frame 460 and are fastened to each other and the body of the fixing bracket 470 is provided with a plurality of through holes 472 Are vertically spaced apart from each other by a predetermined distance so that bolts are inserted through the through holes (472) to fix the projection TV (500).
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KR1020150121195A 2015-08-27 2015-08-27 Blackboard for broadcast educatuon KR101670186B1 (en)

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KR1020150121195A KR101670186B1 (en) 2015-08-27 2015-08-27 Blackboard for broadcast educatuon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150121195A KR101670186B1 (en) 2015-08-27 2015-08-27 Blackboard for broadcast educatuon

Publications (1)

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KR101670186B1 true KR101670186B1 (en) 2016-10-27

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KR1020150121195A KR101670186B1 (en) 2015-08-27 2015-08-27 Blackboard for broadcast educatuon

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102593321B1 (en) 2023-05-18 2023-10-24 박봉수 TV-inserted sliding blackboard
KR102600800B1 (en) 2023-07-25 2023-11-09 김희정 Sliding blackboard with improved safety

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050047319A (en) * 2003-11-17 2005-05-20 한국흑판교재주식회사 Blackboard
KR20090076221A (en) * 2008-01-08 2009-07-13 정상교 A multi-purpose board with both sides
KR20110065071A (en) * 2009-12-09 2011-06-15 한국흑판교재주식회사 A board with slide moving type the surface of a wall tv

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050047319A (en) * 2003-11-17 2005-05-20 한국흑판교재주식회사 Blackboard
KR20090076221A (en) * 2008-01-08 2009-07-13 정상교 A multi-purpose board with both sides
KR20110065071A (en) * 2009-12-09 2011-06-15 한국흑판교재주식회사 A board with slide moving type the surface of a wall tv

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102593321B1 (en) 2023-05-18 2023-10-24 박봉수 TV-inserted sliding blackboard
KR102600800B1 (en) 2023-07-25 2023-11-09 김희정 Sliding blackboard with improved safety

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