JPS5813786Y2 - Book holding device on lectern - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for holding an open book on a lectern, regardless of the different thicknesses and sizes of the left and right pages.

To explain the embodiment in detail, as shown in FIG. 1, a hollow cylindrical tube 2 is firmly fixed and erected at one end of the instrument panel 1, and an upright rod 3 inserted into the cylindrical tube 2 is fixed with a stop pin 4. However, by loosening the stop pin 4, vertical and horizontal rotation can be freely adjusted.

The width of the upper part of the upright rod 3 is widened, and a cutout part 5 is provided in the central part in the vertical direction, and a horizontal cutout part 7 is formed on the left and right arms 6, 6, and a cutout part 8 is formed on the right side of the frame in multiple stages, alternately. It is set up in

A pin 9 is inserted into the cutout part 5, and a balance beam 10 that supports the book stand is locked by the pin 9, and the balance beam 10 is horizontal, and the right column is made freely movable by the groove parts 7 and 8.
It can also be moved up and down, horizontally, to the right, and left and right by loosening pin 9.

A central portion of the balance beam 10 is provided with a cutout in the longitudinal direction.

Then, by fitting the side edge 11 of the balance beam 10 into the cut groove 7 or 8, the balance beam 10 is arranged horizontally and fixed with the pin 9, and the book stand is placed on the balance beam 10. is fully supported.

Next, as shown in FIGS. 1 and 3, the balance beam 10
A square short tube 12 is inserted and locked into the hollow cutout at the right end of the container board 1, with its upper part being a round container board 13.
A thumbscrew 14 is brought into contact with one side of the 3, and a round-shaped plate 15 is brought into contact with the other side of the 3, and a threaded rod protruding from the plate 15 is inserted through the plate 13 and fixed with the thumbscrew 14. has been done.

At this time, thin cross-shaped grooves are cut into the contact surfaces of the vessel plates 13 and 15 to ensure complete and easy fixation.

Legs 16 hang down from the lower part of the bowl 15, and a bowl 17 is fixed under the feet 16 with the direction changed by 90' from the bowl 15.

An angle piece 18 is fixed to the tabletop 17 with a thumbscrew 19, and the tip of the angle piece 18 is fixed with a screw to an adjustment beam 20 on the upper part of the book stand.

As shown in FIG. 1, the adjustment beam 20 has a cross shape, and horizontally elongated cutouts 21 and 21 are formed on the left and right sides, respectively.

The cross-shaped head 22 is made somewhat wide, and has arms 22.23 protruding forward from its left and right side edges, and arms 25.23 extending from both side edges of a scissors portion 24 that matches the head 22 and acts as a paper clip. 25 is provided to protrude rearward, and this arm 23.23 and arm 25.degree. 25 are locked with a shaft 26, and both ends of the shaft 26 are interlocked.

A spring 27 is wound around the shaft rod 26.

28 in Figures 2 and 3 is a spring whose one end can be unlatched or unlatched.

The lower part of the scissors part 24 is secured to the head of the cross-shaped main presser bar 29 by bolting, but it can be rotated to some extent by holding the vertical part of the main presser bar 29.

The auxiliary beam 30.30 that covers the left and right cutouts 21.21 of the adjustment beam 20 is provided with a cutout like the adjustment beam 20, and is able to slide left and right on the adjustment beam 20. Auxiliary vertical beam 3 on the left or right end
1.31 is fixed with a screw.

In the figure, 32 and 32 are auxiliary paper paper scissors.

And the adjustment beam 20, the auxiliary beam 30 and the rigid beam 3
3 are locked and fixed with a set screw 34 inserted into the cutout.

At the lower end of the rigid beam 33.33, there is a support fitting 36.36 screwed to support the stand 35 on which the book stands.

With the structure described above, when the instrument panel 1 is placed under a bed mat or futon, the upright rod 3 inserted into the tube 2 can be rotated horizontally and moved vertically using the stop pin 4. It can be adjusted to

Next, by fitting the balance beam 10 into the cut groove 7.8 with respect to the upright rod 3, it can be positioned horizontally or upwardly to the right, and freely vertically and horizontally.

When the thumbscrew 14 is loosened, the bookstand is rotated in an arc parallel to the balance beam 10 about the thumbscrew 14, so that any inclination can be selected.

When the thumbscrew 19 is loosened, the bookstand is rotated in a circular arc in a direction perpendicular to the balance beam 10 around the thumbscrew 19, so that any inclination can be selected as well.

Next, the adjustment beam 20, the rigid beam 33, 33 and the stand 35
A book placed along the sides is completely supported by the scissors 24, spring 27, book holding bar 29, etc. When the book is large, it can be supported by expanding the auxiliary beams 30, 30 and the auxiliary vertical beams 31 and 31 to the left and right. Now possible, auxiliary paper scissors 32.3
If you put a book between the two, you can read it even more comfortably.

The bookstand of this invention has a new bookstand in the above, and has an adjustment beam 20, a rigid beam 33°33, and a stand 3.
When holding and supporting the book along the line 5 with the scissors 24, spring 27, and main presser bar 29, the main presser bar 2
Since the numeral 9 is cross-shaped, it hits the groove between the opened left and right pages, completely preventing the pages from slipping or drooping.

Even when the number of pages is large and thick, the head of the book presser bar 29 is rotatably bolted, so that it can be pulled up and kept vertically so that the book can be completely held down by its cross shape.

Moreover, the hook is removed by spring 28 and spring 27.
Since the tension can be suppressed, the scissors part 2 can be
4 makes it easier to pull up the main presser bar 29 and make it easier to use.
3.33 has the effect of being able to hold most large books.

[Brief explanation of drawings]

FIG. 1 is a front view showing a part of the lectern according to the invention in cross section, FIG. 2 is a left side view of FIG. 1, and FIG. 3 is an enlarged side view of the main part. In the figure, 1 is the instrument board, 2 is the tube, 3 is the upright rod, 4 is the stop pin, 5 is the cutout, 6 is the arm, 7 is the cutout, 8 is the cutout, and 9
is the pin, 10 is the balance beam, 11 is the side edge, 12 is the short tube, 13 is the instrument panel, 14 is the thumbscrew, 15 is the instrument panel, 16
is the foot, 17 is the instrument panel, 18 is the angle piece, 19 is the thumbscrew, 20 is the adjustment beam, 21 is the cutout, 22 is the head,
23 is the arm, 24 is the scissors, 25 is the arm, 26 is the shaft, 2
7 is a spring, 28 is a spring, 29 is a main presser bar, 30 is an auxiliary beam, 31 is an auxiliary vertical beam, 32 is an auxiliary paper scissor, 33 is a rigid beam, 34 is a set screw, 35 is a stand, and 36 is a support metal fitting.

Claims (1)

[Scope of utility model registration request] On the lectern, horizontally long cutouts 21 and 21 are made in the left and right panels of the cross-shaped adjustment beam 20, and in the panel of the head 22, there are cut out parts 21 and 21 for placing books held in a hanging manner on the lectern. The scissors 24 provided on the front side constitute a paper scissors, and a spring 28 weaker than the spring 27 of the paper scissors is provided between the head 22 and the upper part of the scissors 24.
The head of a cross-shaped main presser bar 29 is fastened to the lower part of the adjustment beam 20 in parallel with the adjustment beam 20 so as to be able to rotate to some extent.
The auxiliary beam 30.30 that overlaps the 21.21 also has a cutout.
21 is provided, and the stiff beams 33.33 are fixed with setscrews 34 inserted into each of the above-mentioned superimposed cutouts, and the stand 35 on which books are placed between the stiff beams 33 can be removed and freely moved. A book holding device on a stretched lectern.