JP2618990B2 - Braille display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention] (Industrial application field) The present invention is adopted in, for example, an automatic deposit and withdrawal transaction device used for banking business and the like, and is used for visually impaired persons (blind persons). The present invention relates to an improvement of a Braille display device, which is a visual substitute device for displaying amounts such as deposits, withdrawals, and balance introductions.

(Prior Art) In recent years, there is an automatic depositing and dispensing transaction apparatus (hereinafter referred to as ATM) used for banking and the like, which is equipped with a braille display for confirming the amount of money for visually impaired persons.

Conventionally, a Braille display equipped in an ATM has a cylindrical Braille pin that is guided by a Braille pin guide provided at the lower edge of an opening of a through hole formed in a display panel. Braille is configured to be selectively projected on the display panel by a pin driving means described in detail in Japanese Patent Application Laid-Open No. 61-215242.

In addition, since braille is used by the visually impaired, accuracy between two points is required. Therefore, the outer diameter of the braille pin and the hole diameter of the braille pin guide are as close as possible, and there is a play when the braille pin is touched. Is reduced as much as possible.

(Problems to be Solved by the Invention) However, in the conventional Braille display, since the Braille pins are simply cylindrical, when external dust or the like enters the gap between the outer diameter of the Braille pins and the hole diameter of the Braille pin guide, the conventional Braille display has a problem. There is a serious problem that the Braille pin may be clogged and the Braille pin may not move.

The present invention has been made in view of the above circumstances, and its purpose is to be able to move reliably without blocking the movement of the braille pin even if dust enters from the outside despite a simple configuration, It is an object of the present invention to provide a highly reliable Braille display capable of obtaining a stable operating state over a wide range.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention displays Braille by selectively projecting a plurality of Braille pins from a plurality of through holes on a surface of a panel. In the Braille display, a groove is provided around the Braille pin and along the projecting direction of the Braille pin to form a gap between the through hole and the Braille pin.

(Operation) That is, with the above-described configuration, dust adhering to the Braille display panel falls down through a groove formed in the periphery of the Braille pin along the direction of protrusion and depression, so that a gap between the Braille pin and the Braille pin guide is provided. , And is always kept in a constant state, and stable operation can be performed for a long period of time.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows the Braille display 1 partially cut away, and this Braille display 1 is arranged on the horizontal operation panel 3a of the customer service unit 3 formed on the front of the ATM 2 as shown in FIG. Have been. The operation is performed by transmitting an information signal from the outside to the ATM 2, and various kinds of information are displayed in Braille characters to provide information to a visually impaired person.

The horizontal operation panel 3a of the customer service unit 3 is provided with a keyboard 4, a CRT display 5, and a cash slot 7 opened and closed by a lid 6, in addition to the Braille display 1, and a vertical panel. The section 3b is provided with a card insertion slot 8 and a universal insertion slot 9 respectively.

As shown in FIG. 1, the Braille display 1 includes a display panel 11 mounted on an upper horizontal plate 10a of a display housing 10.
And a plurality of Braille pins 12 arranged so as to be able to protrude from the surface of the display panel 11, and pin driving means 13 for selectively protruding these Braille pins 12 to form Braille. .

The driving means 13 are configured as shown in detail in FIG. 2 and FIG. That is, 15 is a magnet as a drive source, and this magnet 15 is
It is fixed via a screw 18 to a magnet fixing table 17 attached to the lower surface of an upper base 16 provided in 10.

The magnet 15 has a configuration in which a coil 20 is wound around a C-shaped fixed iron core 19, and its both magnetic pole surfaces 15a, 15b
An L-shaped arm 22 is attached via a support pin 21 so as to come into contact with and separate from the arm.

The L-shaped arm 22 is rotatably supported about the support pin 21 as a center of rotation, and the free end of the L-shaped arm 22 is connected to the Braille pin 12 via a rod 23 as a connecting member.

A return leaf spring 24 is provided on the rotation fulcrum side of the L-shaped arm 22 as biasing means, and is always biased clockwise (direction of arrow a) in the state of FIG. It has become. At this time, the rod of the L-shaped arm 22
The free end connected to the upper base 16 is in contact with the lower base 25 located at a predetermined size position on the upper base 16 so that the rotation of the free end is restricted to a predetermined degree or more. As shown in FIG. twenty two
An appropriate gap G is formed between the magnet 15 and both magnetic pole surfaces 15a and 15b.

FIG. 3 shows a state in which the magnet 15 is excited by an input signal. The L-shaped arm 22 is made to exist in a magnetic field by the two pole faces 15a and 15b of the magnet 15, so that the same pole faces 15a, L-shaped arm 2
2 is sucked and turned into a counterclockwise direction (direction of arrow b). This allows the Braille pins 12 to be
It will protrude from the surface of 10.

Similarly, a plurality of braille pins 12 are selectively projected,
A predetermined Braille is displayed by the combination.

Further, the Braille pins 12 are guided by a Braille pin guide 28 attached to a lower end opening edge of a through hole 27 formed in the display panel 11 so as to be freely protruded and retracted. The gap between the braille pin 12 and the braille pin guide 28 is set to be as small as possible, so that the play when the braille pin 12 is touched is reduced as much as possible to improve the accuracy of the braille.

In addition, a plurality of grooves 30 are formed around the braille pin 12 along the projecting direction as shown in FIGS.

Thus, dust on the display panel 11 of the Braille display 1 falls into a gap between the Braille pin guide 28 and the Braille pin 12 through a through hole 27 formed in the display panel 11 due to vibration or the like. Are formed with grooves 30, so that dust that has entered the gap falls down through these grooves 30,
Clogging does not occur as in the prior art, and a stable movable state can always be maintained.

[Effects of the Invention] As described above, according to the present invention, in the braille display device for displaying braille by selectively projecting a plurality of braille pins from a plurality of through-holes on the surface of the panel, The groove is formed along the protruding direction around the perimeter, so even if dust enters from the outside, it can move reliably without blocking the movement of the Braille pin even though it has a simple structure, and the operating state is stable for a long time This provides an effect of providing a highly reliable Braille display capable of obtaining the following.

[Brief description of the drawings]

1 shows an embodiment of the present invention. FIG. 1 is a schematic perspective view showing a Braille display partly cut away, and FIGS. 2 and 3 show different operation states of a pin driving means. FIG. 4 is a schematic perspective view showing the shape of a Braille pin, FIG. 5 is a cross-sectional view of the Braille pin, and FIG. 6 is a view showing a state of being incorporated in an automatic depositing and dispensing transaction device. 1 Braille display, 11 Display panel, 12 Braille pin, 27 Through hole, 28 Braille pin guide, 13 Pin driving means, 30 Groove.

Claims (1)

(57) [Claims] 1. A Braille display device for displaying Braille by selectively projecting a plurality of Braille pins from a plurality of through-holes on a surface of a panel, wherein the Braille display is provided around the Braille pins and along a direction in which the Braille pins protrude. A braille display, wherein a groove is provided and a gap is formed between the through hole and the braille pin.