JP3323740B2 - Vending machine push button switch device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a push button switch device for a vending machine.

[0002]

2. Description of the Related Art A conventional push button switch device for a vending machine includes a frame detachably attached to a front panel of the vending machine, a circuit board provided on the frame, and a circuit board. A switch unit provided on the front surface of the substrate, a waterproof cover for covering and waterproofing the switch unit,
A pusher for pushing the switch. And the said frame was fitted and attached to the opening part opened in the said front panel.

In the fitting type, since a large opening must be formed in the front panel, the strength of the front panel is weakened, and the manufacturing cost of the front panel is also increased. In order to solve the problem, the frame body is detachably attached to the front surface of the front panel and is disclosed in, for example, Japanese Utility Model Laid-Open No. 2-218229 and Japanese Utility Model Laid-Open No. 2-115223. .

[0004]

In the conventional fitting type, since the rear part of the push button switch device enters the inside of the front panel from the opening of the front panel, it is possible to prevent rainwater from entering the switch part. Countermeasures had to be taken only from the front side of the push button switch device.

[0005] However, in the conventional auxiliary type, rainwater may enter the push button switch device from the rear side of the frame attached to the front of the front panel.
The measures have not been taken sufficiently, and only the waterproof measures from the front side same as the conventional fitting type have been taken. In view of the above, an object of the present invention is to provide a push button switch device for a vending machine in which the rainwater is prevented from entering from the rear side in the attached type.

Further, in the above-mentioned conventional device, since no member for regulating the amount of pushing of the pushing portion of the push button switch is provided, there is a possibility that the pushing portion is pushed too hard and the switch portion is damaged. Was. Accordingly, an object of the present invention is to provide a push button switch device of a vending machine in which the amount of movement of a pushing portion is regulated to protect a switch portion.

[0007]

In order to achieve the above object, the present invention takes the following measures. That is, a feature of the present invention is that a frame body detachably attached to a front panel of a vending machine, a circuit board provided on the front side of the frame body, and a circuit board provided on the front side of the circuit board. A plurality of switch units,
A waterproof cover that covers and waterproofs the switch unit, a push button cover that is provided on the front side of the waterproof cover and pushes the waterproof cover, and that pushes the switch unit that is provided on the waterproof cover. In a push button switch device of a vending machine having a rod-shaped pushing portion, the waterproof cover has a predetermined elasticity made of silicon rubber or the like.
It has translucency, and has a swelling portion swelling forward so as to cover the plurality of switch portions with a predetermined space, and the swelling portions are provided continuously by the number of the switch portions. , said button cover press before <br/> SL formed from a transparent hard synthetic resin on the outer surface of the bulging portion is fitted, the inner surface regulating member evagination portion is fitted, the regulation member And the push button
The waterproof cover is sandwiched and fixed by a bar, and the regulating member has a peripheral wall having a uniform thickness having an outer shape fitted to the inner shape of the bulging portion, a connecting wall connecting a central portion of the peripheral wall, rod-like pushing portion have a fitting portion formed in said connecting wall in order to fit the rear end surface of said peripheral wall, said circuit board
It is configured to contact the front surface and regulate the pushing amount of the pushing portion.
It is in the point that is. According to the present invention, the regulating member for regulating the pushing amount of the pushing portion is provided inside the waterproof cover so as not to push the switch portion too strongly. Since the pushing is regulated by the regulating member, there is no danger that the switch will be damaged due to excessive pushing.

Further, a screw portion is provided on the frame, a fixing hole is opened at a position corresponding to the screw on the front panel, and the frame is fixed to the front panel via the screw. A seal member is provided to prevent rainwater from entering the screw portion from entering the screw portion. According to the present invention of the construction, rain water infiltrates between the frame and the front panel,該雨water passes through the fixed hole, tries to penetrate into screw portion,該雨water sealing member As a result, the penetration is prevented, so that the waterproof property inside the push button switch device is improved.

The rear surface of the frame is connected to the circuit board.
A connector provided on the front panel.
An insertion hole is opened at a position corresponding to
Preferably, a seal member is provided to prevent water from entering the connector .

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, a push button switch device according to the present invention includes a frame 2 detachably attached to the front of a front panel 1 of a vending machine, a circuit board 3 provided on the front side of the frame 2, The switch unit 4 includes a switch unit 4 provided on the front surface of the circuit board 3, a waterproof cover 5 that covers and waterproofs the switch unit 4, and a pushing unit 6 that pushes the switch unit 4.

The frame 2 is made of a horizontally long synthetic resin plate and has a large thickness. The circuit board 3 attached to the front surface of the frame 2 is formed of a thin plate made of a horizontally long synthetic resin and slightly smaller than the frame 2. On the front surface of the circuit board 3, the switch unit 4 is provided, and on both sides of the switch unit 4, a light emitting member 7 composed of a light emitting diode or the like and various elements are provided. One switch operation section 8 is formed. A plurality of such switch operation units 8 are formed on one circuit board 3. A connector 9 for connecting the switch operation unit 8 of the circuit board 3 to another electric device projects rearward from the rear surface of the frame 2.

The connector 9 is fixed to the rear surface of the frame 2 via a sealing member 10 made of a silicone rubber sheet or the like. A screw portion 11 is provided on the frame 2 near the connector 9. The screw portion 11 has a protrusion 12 whose rear surface portion integrally projects rearward. The projecting portion 12 is provided with a through hole 13, and the front side of the hole 13 is a non-circular spot facing hole 14 such as a square or an ellipse. A metal nut 15 is fitted in the counterbore hole 14. On the rear side of the frame 2, a seal member 16 that fits into the protrusion 12 is provided. This sealing member 1
Reference numeral 6 is formed as a seal packing made of silicon rubber or the like.

The waterproof cover 5 is made of silicon rubber or the like, has predetermined elasticity, and has translucency. The waterproof cover 5 has a bulging portion 17 bulging forward so as to cover the switch operating portion 8 including the switch portion 4 and the light emitting member 7 with a predetermined space. The bulging portions 17 are provided continuously by the number of the switch operation portions 8. The peripheral edge 18 of the bulging portion 17 is configured to be in close contact with the front surface of the circuit board 3 to be waterproof.

From the inner surface of the bulging portion 17, a pushing portion 6 for pushing the switch portion 4 is integrally formed so as to project in a rod shape. The conductor 2 is attached to the end face of the rod-shaped pushing portion 6.
0 is provided, and the circuit of the switch section 4 is short-circuited when the conductor 20 contacts the switch section 4. A regulating member 21 for regulating the amount of pushing of the pushing portion 6 is provided inside the bulging portion 17 of the waterproof cover 5. As shown in FIG. 2, the regulating member 21 has a peripheral wall 22 having an outer shape that fits into the inner shape of the bulging portion 17, and a connecting wall 23 that connects a central portion of the peripheral wall 22.
And a fitting part 24 for fitting the rod-shaped pushing part formed on the connecting wall 23. Therefore, a pair of left and right spaces defined by the connection wall 23 are formed inside the regulating member 21. This space is a space through which the light of the light emitting member 7 passes.

When the pushing portion 6 is pushed rearward, the rear end face 25 of the regulating member 21 comes into contact with the front surface of the circuit board 3 to regulate the pushing amount of the pushing portion 6 and to push the pushing portion. The conductor 20 at the tip of the moving part 6 is configured to contact the switch part 4 with an appropriate contact pressure. A push button cover 27 is fitted on the front surface of the bulging portion 17 of the waterproof cover 5 via a display plate 26. The push button cover 27 is formed of a hard transparent synthetic resin. The waterproof cover 5 is sandwiched and fixed between the push button cover 27 and the regulating member 21. The outer cover 2 having a hole 28 through which the push button cover 27 is inserted.
9 is fitted to the frame 2 so as to cover the front surface of the frame 2. The periphery of the push button cover 27 is formed with a flange 30 projecting outward. The push button cover 27 is configured such that the flange 30 always engages with the peripheral edge of the hole 28 of the outer cover 29 by the elastic force of the waterproof cover 5.

The unitized push button switch device having the above structure is detachably attached to the front surface of the front panel 1 of the vending machine. That is, the front panel 1 has a through hole 3 at a position corresponding to the connector 9 of the push button switch device.
1 and a fixing hole 32 is formed at a position corresponding to the screw portion 11. Then, the connector 9 is inserted into the insertion hole 31, the protrusion 12 of the screw portion 11 is inserted into the fixing hole 32, and the bolt 33 is screwed into the nut 15 of the screw portion 11. Fixed to panel 1. At that time, the sealing member 1 of the connector 9
0 closes the insertion hole 31, and the sealing member 16 of the screw portion 11 closes the fixing hole 32, so that from the rear side of the frame 2,
This prevents rainwater from entering the switch operation unit 8 from the connector 9 or the screw unit 11.

According to the above configuration, since the screw portion 11 is provided in the vicinity of the connector 9, the clamping force of the seal member 10 of the connector 9 is sufficiently maintained, so that the sealing property can be improved. According to the above configuration, since the rear surface of the frame 2 is a substantially flat surface except for the screw portion 11, a complicated shape in which a socket portion is integrally formed on the rear surface of the frame as in the related art. The manufacturing cost of the frame can be reduced as compared with the case of the above.

Further, in the conventional device, rainwater may enter unless the socket and the screw are fitted with the holes of the front panel with high precision. Since the sealing is performed, the manufacturing accuracy such as the hole forming may be rough, and the processing cost is reduced. Further, according to the above configuration, since the shape of the regulating member 21 is extremely simplified, it does not have a complicated shape like a conventional reflecting mirror body, so that the manufacturing cost can be reduced. According to the above configuration, since there is no need to provide a reflecting mirror as in the related art, there is no need for extra maintenance work such as cleaning of dust or the like adhering to the reflecting mirror portion, thereby facilitating maintenance. Further, in a conventional reflector having a complicated shape, when the push button is operated, the reflector may come into contact with a light emitting diode or another element on a circuit board to cause damage. The member 21 has a simple shape and has no irregularities, so there is no risk of contacting and damaging other elements.

Further, although it is costly to insert a metal nut into the screw portion, according to the configuration of the embodiment of the present invention, the nut 15 is fitted into the non-circular counterbore hole 14. Therefore, the manufacturing cost is reduced as compared with the case of the integral insert. FIG. 3 shows another embodiment relating to the sealing structure of the connector 9, and the connector 9 is soldered to the circuit board 3 with a waterproof silicone rubber sheet as a sealing member 10 interposed therebetween. But the frame 2 and the sealing member 1
In order to further improve the airtightness with respect to 0, a difference is that a ridge 34 that contacts the sealing member 10 is provided around the connector 9 on the rear surface of the frame 2.

By providing the ridges 34 in this manner, the surface pressure is increased, and the sealing performance can be improved. FIG. 4 shows another embodiment, in which a sealing member 10 is provided with a peripheral wall 35 surrounding the connector 9 to further prevent rainwater from entering the connector 9.

FIG. 5 shows another embodiment, in which the connector 9 and the frame 2 are in direct contact with each other,
Is provided around the seal member 10. FIG. 6 shows another embodiment of the screw portion 11, in which a seal member 36 is interposed between the non-circular counterbore hole 14 and the nut 15,
Further, the sealing performance is improved.

FIG. 7 shows another embodiment, in which a nut 15 is formed in a cap nut to completely prevent rainwater from entering through a screw hole. The present invention is not limited to the embodiment described above. For example, the screw member that fits into the non-circular counterbore hole in the screw portion is not limited to a nut, and may be a bolt. .

[0023]

According to the present invention, rainwater infiltrates between the frame and the front panel, and the rainwater tries to penetrate into the connector or the screw portion through the insertion hole or the fixing hole. Since the rainwater is prevented from entering by the seal member, the waterproof property inside the push button switch device is improved.

Further, according to the present invention, since the regulating member for regulating the pushing amount of the pushing portion is provided inside the waterproof cover so as not to push the switch portion too strongly, Even if the part is strongly pushed, the pushing movement is regulated by the regulating member, so that there is no danger of the switch part being damaged due to excessive pushing.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view of a regulating member.

FIG. 3 is a cross-sectional view showing another embodiment of the seal member of the connector.

FIG. 4 is a cross-sectional view showing another embodiment of the seal member of the connector.

FIG. 5 is a cross-sectional view showing another embodiment of the seal member of the connector.

FIG. 6 is a cross-sectional view showing another embodiment of the sealing member of the screw portion.

FIG. 7 is a cross-sectional view showing another embodiment of the sealing member of the screw portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front panel 2 Frame 3 Circuit board 4 Switch part 5 Waterproof cover 6 Pushing part 9 Connector 10 Seal member 11 Screw part 16 Seal member 21 Restriction member 31 Insertion hole 32 Fixing hole

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01H 13/06 H01H 9/04 H01H 13/70 G07F 9/00

Claims (3)

(57) [Claims] 1. The vending machine is detachable from the front panel (1)
A frame (2) attached to the frame, and a frame provided on the front side of the frame (2).
Circuit board (3) and a plurality of circuit boards provided on the front of the circuit board (3).
The switch part (4) and the switch part (4) are covered and waterproof.
Waterproof cover (5) to be provided and provided on the front side of the waterproof cover (5).
Push button cover for pushing the waterproof cover (5)
-(27) and the switch provided on the waterproof cover (5).
Switch (4)Rod shapeVending with pusher (6)
In the vending machine push button switch device, the waterproof cover (5) is, Composed of silicon rubber, etc.
Has predetermined elasticity and translucency,The plurality of switch units (4)
Bulging part that bulges forward so as to cover with a predetermined space
(17), and the bulging part (17) is the number of the switch parts (4).
And provided on the outer surface of the bulging portion (17).Formed from rigid transparent synthetic resin
WasThe push button cover (27) is fitted, and the
A regulating member (21) is fitted on the inner surface of the protrusion (17),The regulating member
(21) and the push button cover (27)
ー (5) is pinched and fixed,  The regulating member (21) fits into the internal shape of the bulging portion (17).
Have an outer shapeOf uniform thicknessThe peripheral wall (22) and the peripheral wall (2
2) a connecting wall (23) connecting the central portion of theRod shapePushing part
(6) is fitted to the fitting portion (2) formed on the connecting wall (23).
4) YesAnd The rear end surface (25) of the peripheral wall (22) is a front surface of the circuit board (3).
To regulate the pushing amount of the pushing portion (6).
Have been Vending machine push button switch
Switch device. 2. A screw (11) is provided on the frame (2),
A fixing hole (32) is opened at a position corresponding to the screw portion (11) on the front panel (1), and the frame (2) is inserted through the screw portion (11).
Are fixed to the front panel (1) and the fixing holes (32)
The push button switch device for a vending machine according to claim 1, further comprising a seal member (16) for preventing rainwater from flowing into the screw portion (11). 3. The circuit board (3) is provided on a rear surface of the frame (2).
A connector (9) connected to the front panel is provided.
An insertion hole (31) is opened at a position corresponding to the connector (9) of (1), and a sealing member (10) for preventing rainwater from the insertion hole (31) from entering the connector (9). 3. The push button switch device for a vending machine according to claim 1, wherein a push button switch device is provided.