JP2000187767A - Depression key switch for vending machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To exchange only a case and a lens while the watertight structure of a circuit board at the time of renewal is maintained by integrating a switch part, a case part and a screw part by means of the fixing means of a screw or the like and releasing fixing by means of the fixing means so as to remove the case and the lens of the case part. SOLUTION: A case part formed of a case 12 and a lens 11 is positioned on the surface of a front panel 14 forming the display room of a product. Only a cover suppression member 13 covering a base having an insertion part 4 and a connector 3 at the back of the front panel 14 is fitted to a metallic sheet 19 by positioning a switch part exposed to an outer part and integrating the case part and the switch part by a screw 15 on both faces of the front panel 14. The lens 11 can be removed by removing the base 12, and the case 12 and the lens 11 can be exchanged for new ones when they are contaminated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push-button switch for a vending machine, and more particularly, to reducing the renewal cost by replacing only a case and a lens while maintaining a watertight structure of a circuit board when renewing the vending machine. The present invention relates to a push button switch for a vending machine.

[0002]

9 and 10 show a partial sectional structure of a conventional push button switch for a vending machine. FIG. 9 is an upper sectional view, and FIG. 10 is a sectional view taken along line AA of FIG. This vending machine push button switch is a switch unit called an interlock switch having a plurality of push button switches, and is inserted into an insertion hole (not shown) in a front panel (not shown) of the vending machine. ), And the packing is fixed through a screw to the base 1 from the back surface of the front panel so as to prevent water from infiltrating into the vending machine. When the purchaser inserts a predetermined coin into the vending machine, the LED 7a (can be sold) mounted on the circuit board 5 together with the circuit element 6 and the like is turned on. On the other hand, when the sold product is sold out, the LED 7b (sold out) mounted on the circuit board 5 is turned on. LED
The light 7a or 7b passes through the light passage hole 8b of the reflect case 8, and is radiated to the outside through the silicon cover 9, the name plate 10, and the lens 11 while being reflected by the reflective surface 8a. The name plate 10 is an LED 7a,
There is a display pattern (sellable and sold out) that transmits light at a position corresponding to 7b. When the LED 7a is turned on and the product is available for sale, when the purchaser presses the lens 11, the silicon cover 9 is compressed and deformed, and the switch 9a turns on a switch (not shown) of the circuit board 5 to sell the product for sale. It is carried out to the mouth. The lens 11 is exposed from the opening of the case 12,
The case 12 is secured to the base 1 by welding using ultrasonic waves, so that the case 12 is prevented from coming off by the engagement between the engaging portion 12a and the engaging portion 11a. The circuit board 5 is watertightly protected from external raindrops and the like by the silicon cover 9. The connector 3 is connected to the control unit (microcomputer chip) inside the vending machine,
An insertion portion 4 is provided on the outer periphery, and the packing 2 is made watertight.

[0003]

However, according to the conventional vending machine push button switch, when the vending machine is renewed, if the lens and the case are dirty, replace the vending machine with a new vending machine push button switch. As a result, renewal costs were increasing. Further, since the entire switch is exposed on the surface of the front panel, the demand for flattening the front panel cannot be met. Therefore, an object of the present invention is to make it possible to replace only the case and the lens while maintaining the watertight structure of the circuit board during the renewal of the vending machine, thereby reducing the renewal cost and making the vending machine closer to a flat front panel. To provide a push button switch.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention mounts, on an elongated base, a circuit board on which a switch which is turned on and off by a switch operation and a light emitting element which is turned on by turning the switch on and off are mounted. A switch unit that water-tightly surrounds the circuit board on the base with a translucent elastic cover that is deformed by a switch operation,
The lens transmits the pressing force based on the switch operation to the translucent elastic cover, and the case is used to expose the part of the lens to the surface of the lens from the opening of the case so that the lens moves between the translucent elastic cover and the lens. The switch unit is disposed on the back surface of a front panel forming a product exhibition room, the case unit is disposed on the surface of the front panel, and the switch unit and the case unit are screwed or the like. A push button switch for a vending machine is provided, wherein the push button switch is integrated by a fixing means, and the case and the lens of the case portion can be removed by releasing the fixing by the fixing means.

[0005] It is preferable that the translucent elastic cover is provided between the light emitting element and the lens and functions as a light guide.

[0006]

1 (a) and 1 (b) show a first embodiment of the present invention. A case 12 and a lens 11 are provided on the surface of a front panel 14 forming an exhibition room for commodities. A switch portion is provided in which only a cover inhibiting member 13 that covers a base (not shown) having the insertion portion 4 and the connector 3 is located on the back surface of the front panel 14. The case portion and the switch portion are integrally mounted on the sheet metal 15 by screws 15 on both sides of the metal plate.

FIG. 2 shows the internal structure of the switch section and the case section. The base 1 is located on a sheet metal 19, and the LEDs 7a and 7b, circuit elements 6, and switches (not shown) are provided on the base 1.
And a circuit board 5 having a base 1
A translucent silicone cover 9 that covers watertight above is engaged with the base 11 at the end. The silicon cover 9 has a switch 9a made of conductive rubber, and is inscribed in the lens 11 via a name plate 10 having a light transmitting portion of a predetermined mark.
The silicon cover 9 has a space inside, and the reflection surface 8
a and a reflective case 8 having a light passage hole 8b. The end of the silicon cover 9 is suppressed by a cover suppressing member 13. Cover restraining member 1
3 has a packing 2 between itself and the front panel 14. A switch unit is constituted by the above-described components, and is located on the back surface of the front panel 14 except that a part of the silicon cover 9 and the reflect case 8 is exposed on the surface.

On the other hand, the case portion is located on the surface of the front panel 14 and includes the case 12 and the lens 11.
The lens 11 is engaged with the edge of the insertion hole of the case 12 by the engagement portion 11a, and the insertion portion 11b is located in the insertion hole. A name plate 10 is sandwiched between the lens 11 and the silicon cover 9. The case 12 has a boss 16 having a screw hole inside, and the front panel 14
4a and a boss hole 14b, and the base 1 has a screw hole 17. A boss packing 20 is provided between the periphery of the boss 16 of the case 12 and the front panel 14, and a case packing 18 is provided between the upper half of the case 12 and the front panel 14. The case 12, the cover suppressing member 13, and the base 1 are attached to a sheet metal 19 by screws 15, and the insertion portion 4 and the connector 3 protrude inside the sheet metal 19.

FIG. 3 shows a cross section taken along the line A--A in FIG. 2, and the same members are denoted by the same reference numerals. Therefore, a duplicate description is omitted, but the case packing 18 is provided in the upper half of the case 12. , Is not provided in the lower half, so that even if moisture enters the interior, it escapes from the lower part and does not accumulate inside.

FIG. 4 shows a BB section of FIG. 2, and FIG. 5 shows a CC section of FIG. In all cases, the same members are denoted by the same reference numerals, and duplicate description will be omitted. However, the case packing 18 is provided only in the upper half of the case 12.

FIG. 6 shows that the case 12 can be removed by removing the screw 15, and when the case 12 is removed, the lens 11 can also be removed.
Therefore, when the case 12 and the lens 11 become dirty, only the case 12 and the lens 11 can be replaced with new ones. On the other hand, only one of the case 12 and the lens 11 may be replaced.

As is apparent from the above embodiment, since the switch portion is on the back surface of the front panel 14 and only the case is exposed on the surface of the front panel 14, the front panel 1
4 can be approached.

FIGS. 7 and 8 show a second embodiment of the present invention. The same members as those in the first embodiment are denoted by the same reference numerals, and the duplicate description will be omitted. The silicon cover 9 has concave light receiving portions 9A and 9B,
The light of a and 7b is guided to the lens 11. Therefore, the reflect case 8 becomes unnecessary.

[0014]

As described above, according to the push button switch for a vending machine of the present invention, the switch portion is located on the back surface of the front panel and only the case portion is located on the surface of the front panel. Flattening can be approached, and the case and lens can be easily replaced.

[Brief description of the drawings]

FIG. 1 shows a push button switch for a vending machine according to a first embodiment of the present invention, wherein (a) is a front view and (b) is a side view.

FIG. 2 is a cross-sectional view showing the first embodiment.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a sectional view taken along line BB of FIG. 2;

FIG. 5 is a sectional view taken along line CC of FIG. 2;

FIG. 6 is a sectional view taken along line BB of FIG. 2 with the case removed.

FIG. 7 is a sectional view showing a push button switch for a vending machine according to a second embodiment of the present invention.

8 is a sectional view taken along line AA of FIG. 7;

FIG. 9 is an upper sectional view showing a partial sectional structure of a conventional vending machine push button switch.

FIG. 10 is a sectional view taken along line AA of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, Base 2, Packing 3, Connector 4, Insertion part 5, Circuit board 6, Circuit element 7a, 7b, LED 8, Reflect case 8a, Reflect surface 8b, Light passage hole 9, Silicon cover 9a, Switch 10, Name plate 11, lens 11a, engaging portion 11b, insertion portion 13, cover suppressing member 14, front panel 14a, lens hole 14b, boss hole 15, screw 16, boss 17, screw hole 18, packing

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E044 AA01 CA02 FB14 FB20 5G006 AA01 AZ01 BA01 BB03 FB06 FB17 JA01 JB03 JC02 JD03 JF24 LB02 LG07

Claims (2)

[Claims] 1. A circuit board on which a switch that is turned on and off by a switch operation and a light emitting element that is turned on when the switch is turned on and off are mounted on an elongated base.
A switch unit that water-tightly surrounds the circuit board on the base with a light-transmitting elastic cover that is deformed by a switch operation; and a lens that transmits a pressing force based on the switch operation to the light-transmitting elastic cover, and opens the case. A case portion holding the lens between the light-transmitting elastic cover and the case while exposing a part of the lens to the surface from the portion, wherein the switch portion is provided on a rear surface of a front panel forming a product display room. Is disposed, the case portion is disposed on the surface of the front panel, the switch portion and the case portion are integrated by fixing means such as screws, and the case of the case portion is released by releasing the fixing by the fixing means. A push button switch for a vending machine, wherein the lens is detachable. 2. The push button switch for a vending machine according to claim 1, wherein said translucent elastic cover is provided between said light emitting element and said lens and functions as a light guiding means.