JPH08287764A - Cover of identification code input panel - Google Patents

Abstract

PURPOSE: To provide a cover having stopper mechanism by forming a pair of projections at right and left edge parts in a front frame of an identification code input panel, and a cover using the upper edge as a fulcrum between the projections, forming the cross section of a support shaft which rotates together with the cover into almost a track, and bringing the free end of a plate spring whose one end is fixed to the projection into pressure contact with the support shaft. CONSTITUTION: A pair of protruded vertical frame parts 12 are formed in right and left parts of a front frame positioned on the surface of an identification code input panel 1, and a cover main body 7 which opens and closes by using a lateral shaft 31 as a support shaft is formed between the vertical frame parts 12. The lateral shaft 31 is formed so as to have almost a track shaped cross section having two flat surfaces parallel to the side surface of a column, its one end is inserted into almost a track-shaped hole of the cover main body 7, the other end is inserted into a circular hole at the upper end of the inside surface 12a of the vertical frame part 12, and it rotates together with the cover main body 7. The lower end of a plate spring 30 is fixed to the vertical frame part 12, and the upper end is brought into pressure contact with the lateral shaft 31. By this structure, even if a person lets go holding on the way of opening the cover main body 7, the cover main body 7 does not fall in the direction of closing, and a cove having a stopper mechanism by which the cover can stop in the completely opened position can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a secret code input panel lid which is mounted in a wall such as a gate or a front door in a buried state.

[0002]

2. Description of the Related Art Conventionally, a lid of a personal identification code input panel is described in, for example, Japanese Utility Model Laid-Open No. 1-168765. The structure of the lid described in this publication is composed of a plate-shaped front frame having an opening for exposing a sheet switch, and a lid body pivotally supported by the front frame.

A horizontal axis is used as a means for pivotally supporting the lid main body, and the horizontal axis is a so-called ordinary general pivot pin having a perfect circular cross section. Therefore, when the operator inputs the personal identification number, there are drawbacks as listed below. When the operator attempts to input the personal identification code after rotating the lid body by 90 degrees, for example, the operator must always input the code while the lid body is supported by one hand. That is, when the lid body is released, the lid body naturally falls in the closing direction. Therefore, the input operation is troublesome. Even if the operator can open the lid body completely, for example, about 180 degrees, the lid body is rotated by 180 degrees or more because the stopper mechanism is not provided on the lid, so that the lid body can be freely rotated. The end abuts or hits the wall of the gate or entrance. As a result, the lid body may be scratched or damaged.

[0004]

In view of the above-mentioned conventional drawbacks, the present invention makes it possible to easily input a personal identification code even when the lid body is rotated by 90 degrees, and to completely rotate the lid body. The stopper mechanism will work reliably at that location, so the lid body will come into contact with or hit the wall, causing damage.
Alternatively, it is to obtain the cover of the personal identification code input board which can avoid being damaged.

[0005]

In the lid of the personal identification code input board of the present invention, the front frame 6 has the plate portion 1 having the opening 10 for exposing the matrix portion 3a of the sheet switch 3 in the central portion.
1 and a pair of vertical frame portions 12, 12 that are connected to the left and right end portions of the plate portion 11 in a protruding state, and the lid body 7 can be opened and closed on the front frame 6 via a stopper mechanism 8. The stopper mechanism 8 includes a horizontal shaft 31 fitted into the shaft hole 26 of the lid body 7 and the notched shaft hole 21 of the front frame 6, and the vertical frame portions 12 and 12 of the front frame 6.
Is fixed to the inner wall side of the so as to cover the notched shaft hole 21,
In addition, the spring free end 30a is composed of the leaf spring 30 that is in surface contact or pressure contact with the horizontal shaft 31 that rotates together with the lid body.

In the above structure, the outer peripheral surface of the horizontal shaft 31 is formed in a substantially track shape, and the horizontal shaft 31 is provided with the second spring 33 installed in the shaft hole 26 of the lid body 7. It is characterized in that it is biased toward the outside of the hole.

[0007]

When the lid body rotates about 90 degrees, the horizontal shaft 3 also rotates. At this time, since the leaf spring rotates while the arcuate pressure contact surface on one side of the horizontal axis slides on the leaf spring, the spring free end portion of the leaf spring is outwardly displaced. As a result, the lid main body is supported by the leaf spring via the horizontal axis and does not naturally descend in the closing direction.

On the other hand, when the lid body rotates about 180 degrees, the leaf spring returns, and the flat surface on the other side of the horizontal axis rotated together with the lid body comes into surface contact with the leaf spring. As a result, the lid body is stopped by the leaf spring via the horizontal axis and cannot easily rotate any further.

[0009]

The present invention will be described in detail below with reference to the embodiments shown in the drawings. In the lid of the personal identification code input panel shown in FIGS. 1 to 11, 1 is a personal identification code input panel as shown in FIG. The personal identification code input panel 1 is mounted in a switch box (not shown) embedded in an appropriate wall such as a gate or entrance.

The personal identification code input panel 1 has a sheet switch 3 for inputting a personal identification code on the front surface of a case 2 which houses a printed circuit board. The sheet switch 3 is pressed by a finger (touch).
It is a matrix-structured switch that is turned on by the so-called "numeric keypad". Then, the sheet switch 3 uses a transparent or semi-transparent deflection glass on its surface, and when the surface is touched with a finger, a code (number) appears.

On the other hand, 4 is a lid fixedly attached to the personal identification code input panel 1 through a plurality of fasteners 5.
When the components of the lid 4 are divided, a front frame 6 having a rectangular shape and having packing, a lid main body 7 having an upper end portion openably and closably supported by the front frame 6, and the lid main body 7 are provided. It comprises a stopper mechanism 8 for stopping the lid body 7 with respect to the front frame 6 when opened to a predetermined angle or a predetermined position.
Therefore, hereinafter, each of these members will be described in order.

First, the front frame 6 is provided with a plate portion 11 having an opening 10 for exposing the matrix portion 3a of the sheet switch 3 in the central portion thereof, and a pair of left and right end portions of the plate portion 11 which are continuously formed in a protruding state. And a plurality of through holes 13 for the fastener 5 which are aligned with the screw holes 9 provided at appropriate positions of the sheet switch 3 are formed at appropriate positions of the plate portion 11. There is. In addition,
The vertical frame portions 12 and 12 are the plate portions 11 in this embodiment.
Although it is formed from the upper end to the lower end, it may be formed only on the upper end.

On the surface of the lower end portion of the plate portion 11, a step portion 14 for inserting a finger is formed in the horizontal direction. Further, as shown in FIG. 5, a protrusion 15 is provided around the back surface of the plate portion 11, and the protrusion 15 is a rubber packing 16 that is integrally fitted to the back side of the front frame 6.
It fits with the peripheral groove 17 of the.

The packing 16 also has a rectangular opening 18 for exposing the matrix portion 3a of the sheet switch 3, and the edge portion 19 of the packing 16 forming this opening 18 is formed with a tapered surface 20 on the plate portion 11 side. It is formed in a mountain shape in cross section so as to match.

Inside the upper ends of the vertical frame portions 12, 12, a pair of left and right notched shaft holes 21, 21 are formed so as to face shaft holes 26, 26 of the lid body 7, which will be described later. The cross sections of these notched shaft holes 21 and 21 are circular as shown in FIG.

Next, the lid main body 7 is openably and closably provided in the left and right vertical frame portions 12, 12 of the front frame 6 via a horizontal axis of a stopper mechanism 8 which will be described later. In the rotated state, it is supported so as not to descend naturally in the closing direction, and in the rotated state of about 180 degrees, it is stopped so as not to easily rotate any further.

Reference numeral 25 denotes an upper end portion of the lid main body 7 for mounting, and lateral left and right end portions of the mounting upper end portion 25 are provided with a pair of left and right axial shaft holes 26, 26. The cross sections of these shaft holes 26, 26 correspond to the cross-sectional shape of the horizontal axis, and are substantially track-shaped. In the present embodiment, the lid main body 7 has left and right side walls 28, 28 which are connected to a cover portion 27 which is slightly arcuate as a whole in a direction intersecting with the end portion of the mounting upper end portion 25. Further, as shown in FIG. 5, the lid body 7 has its free end 29 when the lid body 7 is closed with respect to the front frame 6.
It slightly protrudes from the finger insertion stepped portion 14.

Next, when the lid main body 7 is supported so as not to descend naturally in the closing direction at the halfway open / closed position, and the stopper mechanism 8 is provided as a stopper that prevents the lid main body 7 from easily rotating further in the substantially completely opened state. In the embodiment, as shown in FIGS. 6 to 11, it is composed of a pair of left and right leaf springs 30 and a pair of horizontal shafts 31 which come into surface contact or pressure contact with the free ends of these leaf springs 30, respectively.

As shown in FIGS. 6 and 8, the leaf spring 30 is vertically inserted inside the vertical frame portions 12, 12 of the front frame 6 near the upper ends thereof via a plurality of second fixing members 32. Is fixed in the vertical direction, and the spring free end portion 30a is fixed to the vertical frame portion 1 described above.
It faces so as to cover the two notched shaft holes 21.

The horizontal shaft 31 is fitted into the shaft hole 26 of the lid body 7 and the notched shaft hole 21 of the front frame 6, respectively, as shown in FIG. The second spring (for example, a coil spring) 33 is biased outward. The horizontal axis 31 has an elliptical cross section as shown in FIGS. 9 to 11, and its outer peripheral surface is formed in a substantially track shape. That is, the horizontal axis 31 is the front and back (two) flat surfaces 34 and 3 which are in surface contact with the leaf spring 30 when the lid body 7 is closed and when the lid body 7 is rotated up by about 180 degrees.
4 and the flat surfaces 34, 34 in a crossed manner, and one side is in line or line contact (including a case of some surface contact) while the lid body 7 is rotated by about 90 degrees. And an arc-shaped pressure contact surface 35.

In the above structure, the open / closed state of the lid body 7 will be described with reference to FIGS. 9 to 11. First, FIG. 9 shows a state in which the lid body 7 is closed. In this case, the leaf spring 30 of the stopper mechanism 8 is in surface contact with the flat surface 34 on one side (back side) of the horizontal shaft 31, but the leaf spring 30 is specially attached to the opened lid main body 7 via the horizontal shaft 31. Function (support function,
It does not exhibit the stopper function).

Next, FIG. 10 shows a state in which the lid main body 7 is rotated by approximately 90 degrees after the finger is inserted into the step portion 14 of the front frame 6. In this case, the lid body 7 rotates and the horizontal shaft 31 rotates together. At this time, the leaf spring 30 rotates while the arc-shaped pressure contact surface 35 on one side of the horizontal shaft 31 slides on the leaf spring 30, so that the spring free end portion 30a of the leaf spring 30 is outwardly displaced in the direction of arrow A. .

As a result, since the horizontal shaft 31 is pressed against the leaf spring 30 in a linear or linear contact state, the lid body 7 is supported by the leaf spring 30 via the horizontal shaft 31 and is naturally closed. Does not descend (supporting function of stopper mechanism 8).

Next, FIG. 11 shows a state in which the lid body 7 is further rotated 90 degrees and the lid body 7 is completely opened. In this embodiment, the lid main body 7 is opened at a predetermined angle or a predetermined position (approximately 180 degrees in this embodiment). In this case, the leaf spring 30 returns to its original position, and the horizontal shaft 31 that rotates together with the lid body 7
The flat surface 34 on the other side comes into surface contact with the leaf spring 30.
As a result, the lid body 7 is stopped by the leaf spring 30 via the horizontal shaft 31 and does not easily rotate further (stopper function of the stopper mechanism 8).

When attaching the lid main body 7 to the front frame 6, first insert the second spring 33 into the axial hole 26 of the lid main body 7, and then insert one end of the horizontal shaft 31 into the axial hole 26. It Next, the other end of the horizontal axis 31 protruding is brought into contact with, for example, the inner wall surface 12a of the vertical frame portion 12 of the front frame 6, or the other end of the horizontal axis 31 is brought into contact with the second end of the horizontal axis 31. It is pushed into the shaft hole 26 while resisting the spring force of the spring 33. Then, in this state, the other end of the horizontal shaft 31 that is to project is aligned with the notched shaft hole 21 of the front frame 6. Then, the other end of the horizontal shaft 31 is provided with the notched shaft hole 21 of the vertical frame portion 12 of the front frame 6.
Easily mate with the "sling" while sliding to.

[0026]

As is clear from the above description, the present invention has the following effects. (1) When the lid body is rotated by 90 degrees, for example, since the lid body is supported by the leaf spring via the horizontal axis, the personal identification code can be easily input without grasping the lid body with a finger. . (2) The stopper mechanism works when the lid body is completely rotated. Therefore, it is possible to prevent the lid body from coming into contact with or hitting the wall portion to be damaged or damaged. (3) Second shaft 31 with the horizontal shaft 31 installed in the shaft hole 26 of the lid body 7
In the embodiment in which the spring 33 is urged outward in the hole, the lid body 7 can be easily attached to the front frame 6.

[Brief description of drawings]

 1 to 11 are explanatory views showing an embodiment of the present invention.

FIG. 1 is a front view.

FIG. 2 is a front view with the lid completely opened.

FIG. 3 is a perspective view showing a relationship between a lid body and a personal identification code input board.

FIG. 4 is an exploded perspective view.

5 is an enlarged sectional view taken along line 5-5 of FIG.

6 is an enlarged sectional view taken along line 6-6 of FIG.

FIG. 7 is an explanatory diagram of a main part viewed from the front side.

FIG. 8 is an explanatory diagram of a main part viewed from the back side.

FIG. 9 is an explanatory diagram of a main part with the lid body closed.

FIG. 10 is an explanatory diagram of a main part in a state where the lid body is rotated by about 90 degrees.

FIG. 11 is an explanatory diagram of a main part in a state where the lid body is rotated by about 180 degrees.

[Explanation of symbols]

1 ... PIN input panel, 3 ... Sheet switch, 4 ... Lid, 6
... front frame, 7 ... lid body, 8 ... stopper mechanism, 10, 1
8 ... Opening, 11 ... Plate part, 12 ... Vertical frame part, 14 ... Step part, 16 ... Packing, 19 ... Edge part, 20 ... Tapered surface, 21 ... Notch-shaped shaft hole, 25 ... Mounting upper end part, 27 ... Cover Part, 28 ... Side wall, 29 ... Free end part, 30 ... Leaf spring,
30a ... Spring free end, 31 ... Horizontal axis, 34 ... Flat surface, 35 ... Pressure contact surface.

Claims (3)

[Claims] 1. The front frame 6 is provided with a seat switch 3 at the center thereof.
The plate portion 11 having an opening 10 for exposing the matrix portion 3a, and a pair of vertical frame portions 12 and 12 that are connected to the left and right end portions of the plate portion 11 in a protruding state, respectively. The lid body 7 is provided on the lid via a stopper mechanism 8 so that the lid body 7 can be freely opened and closed.
A horizontal shaft 31 fitted into the shaft hole 26 of the lid body 7 and the notched shaft hole 21 of the front frame 6, and the vertical frame portion 12 of the front frame 6,
A pin which is fixed to the inner wall side of 12 so as to cover the notched shaft hole 21 and has a leaf spring 30 which is in surface contact or pressure contact with the horizontal shaft 31 whose spring free end 30a rotates together with the lid body. Code input board lid. 2. The cover of the code input board according to claim 1, wherein the outer peripheral surface of the horizontal shaft 31 is formed in a substantially track shape. 3. The horizontal shaft 31 according to claim 1, wherein the horizontal axis 31 is the lid body 7.
A cover of a personal identification code input panel, which is urged in the outer direction of the hole through a second spring 33 installed in the shaft hole 26 of FIG.