JP2842554B2 - Switch device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push button type switch in a toilet seat of a hot water flush toilet.

[Conventional technology]

As shown in FIGS. 11 and 12, the conventional push button type switch is configured to open and close when the pressure receiving surface 100 is pressed, and the area of the pressure receiving surface 100 is relatively small. Such a push button type switch is attached to the toilet seat 102 of the toilet body 101 of the hot water flush toilet, and when a person sits, the switch is turned on by the load of the person, so that operations such as hot water ejection can be performed, and if a person does not sit. Known are those that are not operated.

[Problem to be solved]

When a push button switch is mounted on the toilet seat 102 of the hot water flush toilet, the dimensional variation of the toilet bowl is large, so the mounting accuracy of the push button switch is deteriorated, and backlash occurs during use, and the position of the toilet seat 102 becomes There was a gap. For this reason, the pressure receiving surface of the push button type switch may be displaced from the toilet body 101 and may not operate correctly.

Therefore, the present invention relates to a push button type switch in a toilet seat of a hot water flush toilet which, when a person sits down, the switch can be surely turned on by a person's load even when the position of the toilet seat is displaced or the dimensions are uneven and the mounting accuracy is poor. The purpose is to provide.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a push button type switch main body having a pressure receiving surface protruding substantially in the center of a base plate, and both ends of the push button type switch main body are provided above the pressure receiving surface of the base plate. Provide a leaf spring that is grounded, rises from both ends toward the base plate side, and is depressed so that the top surface is warped toward the base plate side, and abuts against the pressure receiving surface. A rigid pressing plate is mounted movably downward, and by pressing any part of the pressing plate, a pressure receiving surface of the push button type switch main body is pressed via a leaf spring. An elastic body having flexibility and waterproofness that covers a pressing plate provided so as to be in contact with a contour portion (a bent portion on an upper surface) of a depressed top surface and covers at least a peripheral surface of a base plate. It is.

[Action]

When the switch device of the present invention is mounted on the toilet seat of the toilet as shown in FIG. 10, even if the toilet body and the toilet seat vary in size, the pressing plate is larger than the pressure receiving surface. As long as the location is pressed, the pressure receiving surface is reliably pressed by the interposition of the leaf spring, and the switching operation is performed accurately.

〔Example〕

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

In the first embodiment shown in FIG. 1, a push button type switch main body 1 is provided substantially at the center of a base plate 2 so that a pressure receiving surface 1A thereof protrudes, and both ends thereof are located above a pressure receiving surface 1A of the push button type switch main body 1. Is provided with a leaf spring 3 so as to be grounded to the base plate 2. The leaf spring 3 rises from both ends toward the base plate 2 side, and is depressed so that the top surface warps toward the base plate 2 side, and is in contact with the pressure receiving surface 1A. Further, the contour (upper bent portion) of the concave top surface of the leaf spring 3 is in contact with the pressing plate 5. Above the leaf spring 3, a hard pressing plate 5 large enough to cover the leaf spring 3 is mounted so as to be movable downward. The pressing plate 5 is covered with an elastic body 6 having flexibility and waterproofness. The elastic body 6 covers the pressing plate 5 and at least the peripheral surface of the base plate 2. The pressing plate 5 is movable downward in the space surrounded by the elastic body 6. The pressing plate 5 has a flange portion extending below the outer peripheral edge of the pressing plate 5 with a gap between the pressing plate 5 and the base plate 2, and is movable downward by the gap. When any part of the pressing plate 5 is pressed, a pressing force acts on the leaf spring 3, and the concave top surface of the leaf spring 3 presses the pressure receiving surface 1 </ b> A of the push button switch body 1. . Reference numeral 4 in this embodiment indicates a lead wire. FIG. 2 is a sectional view taken along the line II-II of FIG.
5 shows a state in which the pressing plate 5 is pushed upward by the upper surface bent portion (contour portion of the top surface), and the leaf spring 3 has a margin to bend downward. The base plate 2 can be formed of an appropriate material other than the rubber material. The pressing plate 5 is preferably made of a hard material made of a plastic material. If the base plate 2 is also flexible and waterproof, the entire device will be waterproof, and will be used in places such as bathrooms and water heaters where water is required, outdoor work vehicles, and other places where waterproofing is required. It is suitable for use as

In the second embodiment shown in FIG. 3, the leaf spring 3 is formed as a flat plate, and this flat leaf spring 3 is mounted on the projections 2A, 2A formed at the end of the base plate 2, and A rigid pressing plate 5 having a size large enough to cover it and having a plurality of ridges 5A, 5A is mounted above 3 so as to be movable downward. The elastic body 6 completely covers the entire surface except for the bottom surface of the push button type switch main body 1. Reference numerals 1a and 1b in the push button type switch main body 1 indicate electrical contacts, respectively. A slight gap is formed between the pressure receiving surface 1A and the flat leaf spring 3. Also in the second embodiment, no matter where the pressing member 4 is pressed, the ridge 5A of the pressing plate 5 presses the leaf spring 3, and the leaf spring 3 is pressed when the leaf spring 3 is pressed. The pressure receiving surface 1A of the push button type switch main body 1 is pressed to open and close.

4 to 6 show an example of the structure of the push button type switch main body 1. FIG. Here, a pressurized conductive switch was used. That is, the one-sided electrode 9 was disposed on one side of the pressurized conductive rubber 8, and the auxiliary electrode 10 was disposed on the other side, and the pressurized conductive rubber 8 was sandwiched between the two electrodes 9 and 10. As the pressurized conductive rubber 8, anisotropic conductive pressurized conductive rubber made of silicon rubber in which nickel particles are arranged in the thickness direction was used. The pressurized conductive rubber 8 has an electrical insulation of 10 ⁷ Ω or more because a required distance is maintained between the nickel particles in a non-pressurized state.
It becomes a conductor of ¹ Ω or less. A spacer 11 is provided between the single-sided electrode 9 and the pressurized conductive rubber 8.

The base plate 2 may be formed of any material such as a plastic material or a metal material, as well as a rubber material. Also,
The pressing plate 5 is preferably made of resin or metal and has high rigidity. As the leaf spring 3, a metal spring material is mainly suitable for use. Further, the push button type switch main body 1 has one or more electrical contacts and only needs to perform an opening / closing operation by pressing a pressure receiving surface, and is not limited to the illustrated embodiment.

FIG. 7 shows a comparative example for comparison with that of the present invention, in which the pressing plate 5 is not used. The comparative example and the first embodiment were subjected to a load at each of the points a to g by an experimental method as shown in FIG. 8 to measure whether or not the opening / closing operation was performed. The results appeared as shown in the graph of FIG. The graph shown by the dotted line is the comparative example shown in FIG. 7, and the opening and closing operation was not performed at both ends. The solid line in FIG. 9 shows the first embodiment of the present invention, and the opening / closing operation was performed accurately at any point.

〔effect〕

As described above, according to the present invention, the push button type switch main body is provided substantially at the center of the base plate so that the pressure receiving surface protrudes, and both ends of the push button type switch main body are above the pressure receiving surface of the base plate. Provide a leaf spring that is grounded, rises from both ends toward the base plate side, and is depressed so that the top surface is warped toward the base plate side, and abuts against the pressure receiving surface. A rigid pressing plate is mounted movably downward, and by pressing any part of the pressing plate, a pressure receiving surface of the push button type switch main body is pressed via a leaf spring. A flexible and waterproof elastic body that covers at least the peripheral surface of the base plate is provided so as to cover the pressing plate provided so as to contact the contour portion of the depressed top surface. Push button even when pressing Down switch body can be reliably opened and closed operation. In addition, since an elastic body is provided, it is suitable for use as a switch device around water. Further, the push-button switch body is provided so that its pressure-receiving surface protrudes substantially at the center of a base plate having a projection with an end rising upward, and both ends of the base are located above the pressure-receiving surface of the push-button switch body. A flat plate spring is provided so as to be in contact with the projection of the plate, and a pressing plate having a size large enough to cover the spring above the plate spring and having a plurality of rigid, downwardly projecting ridges is provided downward. The pressure receiving surface of the push button type switch body is configured to be movably mounted and to press any part of the pressing plate to press the pressure receiving surface of the push button type switch via the ridge and the plate spring. In the case of providing a flexible plate and an elastic body having waterproofness and covering at least up to the peripheral surface of the base plate at the same time as covering the pressing plate provided so that the ridge comes into contact with the portion not in contact with the surface, like a toilet seat I use it for water It is preferable that the flat plate spring is sandwiched between the projections of the base plate and the projections of the pressing plate at the top and bottom, so that pressing any part of the pressing plate causes the plate spring to act on the pressure receiving surface, and to the toilet body or the toilet seat. Reliable operation is possible even if the dimensions vary.

[Brief description of the drawings]

1 is a sectional view showing a preferred embodiment of the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, FIG. 3 is a sectional view showing the second embodiment, and FIG. FIG. 5 is a sectional view showing an example of the switch body, FIG. 5 is a front view of the switch shown in FIG. 4, and FIG.
FIG. 7 is a simplified sectional view of the switch shown in FIG. 4, FIG. 7 is a sectional view showing a comparative example for comparison with the switch device of the present invention, and FIG. 8 is a diagram for comparing the comparative example with the embodiment of the present invention. FIG. 9 is a graph showing the experimental results of the embodiment of the present invention and a comparative example, FIG. 10 is a sectional view showing a conventional example, and FIG. 11 is a push button used in FIG. FIG. 12 is a front view of the mold switch, and FIG. 12 is a bottom view seen from the direction of the arrow in FIG. DESCRIPTION OF SYMBOLS 1 ... Push button type switch body, 1A ... Pressure receiving surface, 2 ... Base plate, 3 ... Leaf spring, 5 ... Press plate.

Claims (2)

(57) [Claims] 1. A push-button switch body is provided substantially at the center of a base plate so that a pressure-receiving surface thereof protrudes. Above the pressure-receiving surface of the push-button switch body, both ends thereof are grounded to the base plate. A plate spring is provided that rises up to the base plate side, is recessed so that the top surface warps toward the base plate side, and comes into contact with the pressure receiving surface, and has a size large enough to cover it above the plate spring and is a hard pressing plate. The pressure receiving surface of the push-button switch body is configured to be pressurized through a leaf spring by pressing any part of the pressing plate, and the contour of the concave top surface of the leaf spring is A push button type in a toilet seat of a hot water flush toilet, wherein an elastic body having flexibility and waterproofness covering at least the peripheral surface of the base plate is provided while covering a pressing plate provided so as to contact the portion. switch. 2. A push button type switch main body is provided at a substantially center of a base plate having a projection with an end rising upward so that a pressure receiving surface thereof protrudes, and is provided above a pressure receiving surface of the push button type switch main body. A pressing plate provided with a flat plate spring such that both ends thereof are in contact with the projections of the base plate, and having a plurality of ridges which are large enough to cover the plate spring and are hard and project downward. The pressure receiving surface of the push button switch body is configured to be pressed downward through a ridge and a leaf spring by pressing any part of the pressing plate. An elastic body having flexibility and waterproofness that covers the pressing plate provided so that the protrusions come into contact with the protrusion and the portion that does not contact the pressure receiving surface and that covers at least the peripheral surface of the base plate is provided. Toilet seat of hot water flush toilet Push button type switch.