JP2002259024A - Password number input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a password number input device which improves finger touch for password number input and has durability improved with respect deterioration and breakdown of an input face caused by password number input and ensures switch operation, even if it used over a long use. SOLUTION: The password number input device is provided with a hard and transparent push button part 2 like a block having a thickness, a display device 7 arranged on a substrate 6 on the rear side of the push button part 2, a polarizing filter 8 which provided between the pushbutton part 2 and the display device 7, a switch 9 embedded on the display device 7 side, a pushbutton support part 10 which supports the pushbutton part 2, and a pushbutton rear side projecting part 11 which projects to the rear side of the pushbutton part 2 to press and, make the switch 9 operate with the pushbutton support part 10 as the fulcrum at the time of pressing the pushbutton part 2 with a finger.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a password input device used for unlocking / locking an entry / exit control electric lock.

[0002]

2. Description of the Related Art In recent years, in intelligent buildings and research laboratories, IDs such as magnetic cards are used instead of conventional keys.
Entry / exit management systems using collation using cards or fingerprints have also been widely introduced. In such a case, the operator inputs a personal identification number to a personal identification number input device provided on each door, and when the input personal identification number matches a previously registered personal identification number, the entry / exit management electric is controlled. It is possible to unlock and lock the lock.

The personal identification number input device may peep at the entered personal identification number from the side, and the personal identification number may be disclosed to a third party. So, to solve such a problem,
The personal identification number input device described in Japanese Utility Model Laid-Open Publication No. 6-4820 has a large emission angle with respect to a normal set on the polarizing filter by inserting a polarizing filter between the display and the transparent key switch sheet. The structure is such that light rays are blocked by the polarizing filter and the display surface of the personal identification number input device cannot be seen from the side.

[0004]

However, in the prior art password input device, when the transparent key switch sheet is pressed with a finger to input the password, the finger feels weak and the user feels that the password has been input. There was a problem that it was difficult to obtain. Further, when the transparent key switch sheet is pressed many times, there is a problem that the surface of the transparent key switch sheet is deteriorated or damaged, and the switch does not operate.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. The present invention improves the feel of a finger when inputting a password, improves the durability of the input surface due to the input of the password, and improves the durability against damage. It is an object of the present invention to provide a password input device in which a switch is reliably operated even when used.

[0006]

In order to achieve the above object, the present invention provides a block-shaped hard transparent push button portion having a thickness, and a display device disposed on a substrate on the back side of the push button portion. And, a polarizing filter inserted between the push button unit and the display, a switch embedded on the display side,
A push button support portion that supports the push button portion, and a push button back convex portion protruding from the back surface of the push button portion that presses and operates the switch using the push button support portion as a fulcrum when the push button portion is pressed. And a password input device.

[0007]

According to the present invention, since a block-shaped hard transparent push button portion having a thickness is pressed with a finger to input a password, the durability of the password input surface is greater than that of a conventional transparent key switch sheet. improves. Also, when the push button is pressed,
With the push button support portion as a fulcrum, the push button back convex portion protruding from the back of the push button portion presses the switch convex portion arranged at the top of the switch to operate the switch. The touch is improved and the switch operates reliably.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of an embodiment of a personal identification number input device according to the present invention, FIG. 2 is a side view thereof, FIG. 3 is a schematic cross-sectional view taken along the line AA in FIG. FIG. 5 is a front view of a push button plate.

As shown in FIGS. 1 and 2, the password input device 1 has a structure in which the surface of the push button portion 2 slightly protrudes from the ten-key cover 3, and the ten-key cover 3 and the base 4 are combined.

As shown in FIGS. 3 and 4, the internal structure of the personal identification number input device 1 includes a push button plate 5 having a push button portion 2 made of a block-shaped hard transparent polycarbonate having a thickness and the push button plate. A polarizing filter 8 is inserted between the display 7 having a 7-segment LED disposed on a substrate on the back side of the unit 2 and a switch 9 is embedded on the substrate on the display 7 side. When the push button unit 2 is pressed with a finger,
With the push button support 10 as a fulcrum, a push button rear protrusion 11 protruding from the back of the push button 2 presses a switch protrusion 12 disposed on the upper surface of the switch 9, and the switch 9 is turned on. Structure. The password is input by sequentially performing the input operation using the push button unit 2.

As shown in FIG. 5, the structure of the push button plate 5 is such that a plurality of push button portions 2 are
At the right and left sides of the outer frame of the push button plate 5. Therefore, when the push button unit 2 is pressed by a finger, the push button support unit 10 becomes a fulcrum and the push button unit 2
Is displaced up and down.

Each indicator 7 arranged on the back of the push button unit 2
May be fixed, and after the input of a series of personal identification numbers is completed, a control circuit (not shown) randomly selects a fixed push button that coincides with the personal identification number so that only fixed push buttons are not always used. It can be changed.

Finally, the personal identification number input device according to the present invention is not limited to the above-described embodiment, and plays a role required for each component without departing from the spirit of the present invention. Such various changes can be made.

[0014]

According to the personal identification number input device of the present invention, when the push button is pressed with a finger, the push button back projection protrudes from the back of the push button using the push button support as a fulcrum. However, since the switch is turned on by pressing a switch convex portion provided on the upper surface of the switch, the touch at the time of pressing can be improved as compared with a conventional one using a transparent key switch sheet. The switch can be reliably operated even after long-term use.

Further, since the hard transparent push button is pressed with a finger to input the password, the durability against deterioration or breakage of the password input surface can be improved as compared with the conventional key switch sheet.

[0016]

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of a personal identification number input device according to the present invention.

FIG. 2 is a side view of FIG. 1 showing one embodiment of a personal identification number input device according to the present invention.

FIG. 3 is a schematic sectional view taken along line AA of an embodiment of the personal identification number input device according to the present invention.

FIG. 4 is an enlarged sectional view of a main part in FIG. 3 showing an embodiment of a personal identification number input device according to the present invention.

FIG. 5 is a front view of the push button plate according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 PIN input device 2 Push button part 3 Numeric key cover 4 Base 5 Push button plate 6 Substrate 7 Display 8 Polarizing filter 9 Switch 10 Push button support part 11 Push button back convex part 12 Switch convex part

Claims (1)

[Claims] 1. A block-shaped hard transparent push button having a thickness, a display disposed on a substrate on the back side of the push button, and a display disposed between the push button and the display. An inserted polarizing filter, a switch buried on the display side, a push button support for supporting the push button, and a switch that uses the push button support as a fulcrum when the push button is pressed. A password input device, comprising: a push button back convex portion protruding from a back surface of the push button portion for operating the push button.