CN2250253Y - Folding board for read and write - Google Patents

Abstract

The utility model relates to a folding board for reading and writing. The utility model is characterized in that the writing board is formed by hinging three boards, a U-shaped frame (3) and a reading board (12) are hinged in front of the writing board and behind the writing board respectively, a cross-shaped book pressing bar (10) is connected with the reading board through a pin (11), and the both ends of a spring (9) are fixedly connected to the reading board and the book pressing bar respectively. The utility model controls a user's viewing angle and viewing distance when reading and writing, and has an obvious effect on the prevention of myopia. The utility model has the advantages that the structure is simple, and the folding board for reading and writing is capable of being folded to store and carry.

Description

Collapsible read-write board

The utility model belongs to the CAL apparatus of the eyesight of protection eye.

In order to protect eyesight, particularly students in middle and primary schools' the eyesight of eye; the device or the relevant technologies that have occurred at present a lot of vision protections; their structure differences; different; many devices truly have the effect that prevents the myopia generation, but the cost of manufacture that they have is higher, and what have carries inconvenience; what also have can not satisfy needs various varying environments, various all ages and classes and height student simultaneously, causes it to promote relatively difficulty.

The bad habit of the utility model from suppress the pupil reading and writing process set about, provide a kind of simple in structure, easy to carry, use light and handy, read-write nature, can be applicable to the read-write board of different occasions, for example this device is placed on little only stool and can reads and write.

The utility model is realized its purpose as follows: clipboard is by middle plate 5 and side plate 7 hinged forming; The place ahead of clipboard and rear have respectively read plate 12 and U-shaped frame 3 hinged with it.Cross presses book bar 10 to be connected with the reading plate by pin 11, fixedlys connected with reading plate and pressure book bar respectively in the two ends of spring 9.

Read-write board of the present utility model has been controlled visual angle, the sighting distance of user when read-write, and asthenopia and physical demands when having alleviated read-write are obvious to preventing near-sighted effect; And simple in structure because of it, cost of manufacture is low, can stored collapsed carry, and extremely the student welcomes.The utility model uses through the scene of part primary and secondary students' six months, and is respond well.

Embodiment further specifies the utility model below in conjunction with accompanying drawing:

Fig. 1 is the structural representation of this collapsible read-write board.

Fig. 2 is the side view of the read-write board of Fig. 1.

At the both sides of middle plate 5 duplex hinge 6 each hinged side plate 7, form folding smooth smooth clipboard by three blocks of plates.By user's a side attaching U-shaped frame 3 is arranged at middle plate 5, the hinge cover of hinge 4 is fixedlyed connected with plate 5, and hinge is overlapped 2 and fixedlyed connected with the U-shaped frame.There is nut 1 (hinge axis is not shown in the drawings) end of hinge axis., use with fixing for the ease of the angular adjustment between U-shaped frame and the clipboard, can in the hinge cover, install gear clutch and compression spring, force tight mode to locate with nut 1 with the people who adapts to different heights.Read between plate 12 and the middle plate 5 and connect with hinge 14.Page does not stir voluntarily when reading in order to make, and cross is installed on the plate presses book bar 10 reading, and presses the book bar to be connected with the reading plate by hinge 11.Also having spring 9 on the next door of hinge 11, fixedlys connected with reading plate and pressure book bar respectively in the two ends of spring.When using this read-write board, with two side plates 7 and U-shaped frame 3, read plate 12 to around open, at this moment in plate 7 and side plate 5 on same horizontal plane, formed a level and smooth clipboard that area is bigger.Read 12 of plates when opening to certain angle by the hinge automatic spacing, make the written of reading and sight near normal.Angle between U-shaped frame and the clipboard can be forced by turn nut 1 and tightly be made it the location.Read also load onto on the plate can turn an angle add lengthy motion picture 8, book can directly place on the holder book sheet 13 of reading plate when reading the little books of the space of a whole page, then can add lengthy motion picture when reading big space of a whole page books and open, so that read the book that plate can be held this big space of a whole page to both sides with two.Because the effect of spring 9 presses the book bar to be subjected to all the time pulling to the power of reading the plate direction, pressing the page of opening of reading at ordinary times; When needing leaf through a book, the pressure book bar that is pressed on the page is pulled to user one side, press the book bar promptly can rotate around pin 11, spring 9 is progressively elongated; But when spring is stretched to the longest when " dead point " (promptly so-called), press book bar, spring promptly to begin to shorten, press the just not resilience automatically again of book bar if continue again to rotate forward; After page turns over, will press the book bar oppositely to go back to hand again, press the book bar to press the page face again, make written open smooth.When using this read-write board, spacer 15 can be located use against the table edge; In time spent not, this read-write board can be folded into 16-mo book size and deposit, carry very convenient.

Claims (3)

1. a collapsible read-write board has clipboard, it is characterized in that clipboard by middle plate (5) and hinged the forming of side plate (7), and the place ahead of middle plate and rear have reading plate (12) and U-shaped frame (3) hinged with it respectively, also are fixedly connected with spacer (15); Pressing book bar (10) to be connected with the reading plate by pin (11), fixedlys connected with reading plate and pressure book bar respectively in the two ends of spring (9).

2. read-write board as claimed in claim 1 is characterized in that pressing book bar (10) to adopt decussate texture.

3. read-write board as claimed in claim 1 or 2 is characterized in that the angle between U-shaped frame (3) and clipboard is regulated by nut (1).

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