JP2000173388A - Electric equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure a stable switch operation by providing a flange at a part or the whole part of an end of an operation member toward a bush part. SOLUTION: A push piece 15 having a connection part 13 of a switch case 8 at its one end and having an operation member 14 extending downward at the other end thereof is provided at a part facing a tact switch 10 (intermittent operation switch). A flange 18 is provided toward a bush part 17 so as to surround the same, at a contact surface 16 of the operation member 14 to the tact switch 10. Then the piece 15 is pushed to the arrow A direction, the contact surface 16 of the member 14 extending downward of the piece 15 is turned downward around a connection part 13 and abuts on the switch 10. In this case, since the flange 18 is provided at the contact surface 16 so as to cover the bush part 17, the flange 18 abuts on the bush part 17 to prevent the member 14 from riding over the bush part 17 even if the push piece 15 is pushed by a large force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electric equipment used in ordinary households.

[0002]

2. Description of the Related Art A conventional electric device will be described with reference to FIGS.

At one end, there is provided a tip pipe 23 connected to a floor nozzle 22 via an extension pipe 21. The tip pipe 23 is connected to one end of a hose 24, and a connection pipe 26 at the other end of the hose 24. Is connected to the air inlet of the vacuum cleaner main body 25. The tip pipe 23 is composed of a pipe 27 through which dust passes and a case 28 provided on the pipe 27. The inside of the case 28 is used to operate a vacuum cleaner or to control the vacuum cleaner. And a control circuit 30 for performing the operation.

On the upper surface of the case 28, a pressing piece 31 having an operation element is formed integrally at a position facing the tact switch 29, and the pressing piece 31 and the upper surface of the case 28 have elasticity. It is formed integrally with the connecting portion 28a. The upper surface of the case 28 is covered with a membrane sheet 32. The switch contact surface 33 of the pressing piece 31 is
It is formed horizontally with the mold dividing surface at the time of molding the metal 28.

[0005]

In the above-mentioned conventional end pipe of a vacuum cleaner, the upper surface of the tact switch 29 and the upper surface of the case 28 depend on the size of the components of the control circuit. There was an interval, and it was necessary to lengthen the pressing piece 31. When the tact switch 29 is operated, the tact switch 29 is operated by a circular motion with the connecting portion 28a of the pressing piece 31 and the case 28 serving as a fulcrum, and an excessive operating force as shown by a dotted line in FIG. As a result, the pressing piece 31 gets over the tact switch 29 and the pressing piece 31 does not operate.

It is also conceivable to increase the size of the pressing piece 31 in order to prevent riding over. However, if the size of the pressing piece 31 is increased while ensuring elasticity, the gap between the pressing pieces 31 is widened, the overall size is large and heavy, and the usability is poor. It has problems such as becoming.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide an electric device with stable switch operability.

[0008]

In order to achieve the above object, the present invention provides a tact switch for opening and closing an electric circuit by pressing a push portion, a switch case covering the tact switch, and a switch case at one end. A push piece having an operating element which is connected to the pusher and is capable of being pressed and displaced on the other end side, and which has an operating element protruding toward the push section. A flange is provided, and even if an excessive operating force is applied to the pressing piece, the flange hits the push portion and prevents the operator from climbing over.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION
A tact switch for opening and closing an electric circuit by pressing a push portion, and a switch case for covering the tact switch;
One end is connected to the switch case, and the other end side is capable of being pressed and displaced. The pressing piece has an operating element protruding toward the push section. The push piece is provided at a part or the entirety of the tip of the operating element. A flange is provided toward the portion, and even if an excessive operating force is applied to the pressing piece, the flange hits the push portion and prevents the operator from climbing over.

According to the second aspect of the present invention, the flange is provided on the outer periphery of the distal end of the operation element, so that the distance between the push section and the push section can be widened to ensure a stable switch operation with respect to the displacement of the operation element. Is what you do.

According to a third aspect of the present invention, the distance between the flange and the outer shell of the tact switch is formed to be larger than the pressing stroke of the push portion, thereby preventing contact between the outer shell of the tact switch and the flange. This ensures stable switch operation.

According to a fourth aspect of the present invention, a flange is provided on the opposite side of the connecting portion of the pressing piece to the switch case to prevent the operating member from climbing over in the direction in which it is most likely to be displaced. It is.

According to a fifth aspect of the present invention, there is provided a tact switch for opening and closing an electric circuit by pressing a bush portion;
A switch piece for covering the tact switch, a switch case having an opening, and a pressing piece having one end connected to the switch mounting section and having an operating element protruding toward the push section so as to be freely displaceable toward the other end. A flange is provided on a part or the entirety of the tip of the operation element, and the switch mounting part is attached to the opening of the switch case. It is possible to expand to many models by replacement.

[0014]

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described.
This will be described with reference to FIGS.

As shown in FIG. 3, one end has a tip pipe 3 connected to a floor nozzle 2 via an extension pipe 1, and one end of a hose 4 is connected to the tip pipe 3, The connecting pipe 6 connected to the other end of the vacuum cleaner 4 is connected to the suction port 5
a. The tip pipe 3 is composed of a pipe 7 through which dust passes and a switch case 8 provided on the pipe 7, and as shown in FIG. A base 1 on which a tact switch 10 and a control circuit 11 are mounted.
2 are arranged.

On the upper surface of the switch case 8, a portion facing the tactile switch 10 has a pressing end having a connecting portion 13 at one end of the switch case 8 and an operating element 14 extending downward at the other end. A piece 15 is provided, and a membrane sheet 9 is arranged on the upper surface thereof. A contact surface 16 of the operation element 14 to the tact switch 10 is arranged so as to surround the push section 17 toward the push section 17 of the tact switch 10.
A flange 18 is provided. FIG. 2 is a bottom view of the pressing piece 15. The push unit 17 turns on and off the tact switch 10 when pressed.

The operation of the above configuration is as follows.
When the pressing piece 15 is pressed in the direction of arrow A, the contact surface 16 of the operation element 14 extending below the pressing piece 15 rotates downward with the connecting portion 13 as a fulcrum, and contacts the tact switch 10. Since the surface 16 is provided with the flange 18 so as to cover the push portion 17, even if the pressing piece 15 is pressed by a large force, the flange 18 abuts on the push portion 17, and the operation element 14 gets over the push portion 17. It can be prevented.

(Embodiment 2) Next, a second embodiment of the present invention will be described with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. A flange 18 is provided on the outer periphery of the contact surface 16 of the operation element 14 so as to surround a part of the side surface of the push portion 17 toward the push portion 17.

The operation of the above configuration is as follows.
The gap (L) between the push portion 17 and the flange 18 can be secured widely, and the displacement of the operation element 14 prevents the push portion 17 from contacting the flange 18 during normal operation, thereby ensuring a stable switch operation. is there. In order to prevent the push portion 17 from getting over, it is sufficient to provide the flange 18 in a manner opposite to the connection portion 13.

(Embodiment 3) Next, a third embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The distance (X) between the flange 18 and the outer periphery of the tact switch 10 is made larger than the pressing stroke (Y) of the push section 17.

The operation of the above configuration is as follows.
The distance between the flange 18 and the outer periphery of the tact switch 10 is
Since it is configured to be larger than the pressing stroke of the push portion 17, the flange 18 is prevented from hitting the outer periphery of the tact switch 10, and a stable switch operation is secured, and the flange 18 can be prevented from being damaged. .

(Embodiment 4) Next, a fourth embodiment of the present invention will be described with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

A flange 18 is provided at a position of the pressing piece 15 facing the connecting portion 13 with the switch case 8.

The operation of the above configuration is as follows.
Flange 1 for the direction in which operator 14 is most likely to be displaced
8 prevents the push portion 17 from getting over.

(Embodiment 5) Next, a fifth embodiment of the present invention will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The switch case 8 is provided with an opening 19,
A switch mounting part 20 provided with a pressing piece 15 having an operation element 14 and a flange 18 is mounted in the opening 19.

The operation of the above configuration is as follows.
The switch operation is the same as in the previous embodiment, and
When a model is developed by changing the number of tact switches 10 or the control circuit 11, the model can be developed into a large number of models by changing or replacing only the switch mounting section 20, and an inexpensive electric device can be provided.

[0029]

According to the first and fourth aspects of the present invention, even if the operating force is excessive, the pressing piece can be prevented from passing over the switch, and stable operability can be obtained.

According to the second and third aspects of the present invention, it is possible to prevent the flange from hitting the tact switch and to obtain a stable switch operation.

According to the invention described in claim 5 of the present invention, the change of the switch mounting portion facilitates the development of models, and can provide inexpensive electric equipment.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of a tip pipe of a vacuum cleaner showing a first embodiment of the present invention.

FIG. 2 is a bottom view of a main part of the vacuum cleaner.

FIG. 3 is an overall view of the vacuum cleaner.

FIG. 4 is a partially cutaway side view of a tip pipe of a vacuum cleaner showing a second embodiment of the present invention.

FIG. 5 is a bottom view of a main part of the vacuum cleaner.

FIG. 6 is a partially cutaway side view of a tip pipe of a vacuum cleaner showing a third embodiment of the present invention.

FIG. 7 is a partially cutaway side view of a tip pipe of a vacuum cleaner showing a fourth embodiment of the present invention.

FIG. 8 is a bottom view of a main part of the vacuum cleaner.

FIG. 9 is a partially cutaway side view of a tip pipe of a vacuum cleaner showing a fifth embodiment of the present invention.

FIG. 10 is an overall view of a conventional vacuum cleaner.

FIG. 11A is a partially cutaway side view of a tip pipe of the vacuum cleaner. FIG.

[Explanation of symbols]

 Reference Signs List 8 switch case 10 tact switch 13 connecting part 14 operator 15 pressing piece 17 push part 18 flange 19 opening 20 switch mounting part

 ──────────────────────────────────────────────────の Continued on the front page F term (reference) 3B057 DB02 DD01 5G006 AA01 AC01 CB01 CB08 5G019 AA01 CP01 CX12 SK01 SK20 SY04

Claims (5)

[Claims] 1. A tact switch for opening and closing an electric circuit by pressing a push portion, a switch case for covering the tact switch, one end connected to the switch case, and being free to be displaced in pressure to the other end. An electric device, comprising: a pressing piece having an operation element protruding toward the push section, wherein a part or all of the tip of the operation element is provided with a flange toward the push section. 2. The electric device according to claim 1, wherein the flange is provided on an outer periphery of a tip portion of the operation element. 3. The electric device according to claim 1, wherein the distance between the flange and the outer periphery of the tact switch is formed larger than the pressing stroke of the push portion. 4. The electric device according to claim 1, wherein a flange is provided on a side of the pressing piece opposite to a connecting portion with the switch case. 5. A tact switch for opening and closing an electric circuit by pressing a bush portion, a switch mounting portion for covering the tact switch, a switch case having an opening, and one end connected to the switch mounting portion. The other end has a pressing piece having an operating element which is freely displaceable and protrudes toward the push section, and a flange is provided at a part or the entirety of the distal end of the operating element, and the switch mounting section is connected to the switch case. Electrical equipment to be attached to the opening of the switch.