JP2017152254A - Switch mechanism and manufacturing method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switch capable of being easily operated, which can be properly used in water.SOLUTION: A switch mechanism comprises: a housing having an opening part; a pressing force type switch which is arranged in an inner part of the opening part; a push button cover which is arranged so as to over the opening part on an outer side of the housing, and is made of a soft material projected and formed to a direction opposite to the switch; and a cover plate which is integrally formed with the push button cover and is fixed to the housing. The push button cover comprises a projection part for pressing the switch in which the side surface part has a rotor shape expanding outwardly from top to bottom, and which is projected from the inner side of an upper surface part of the push button cover toward the direction of the switch. A distance from a tip surface of the projection part facing an upper surface of the switch to the upper surface of the switch is larger than a displacement magnitude of the projection part in a state where almost even weight is operated to the upper surface part and side surface part of the push button cover.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a switch mechanism and a manufacturing method thereof. In particular, the present invention relates to a push-type switch mechanism and a manufacturing method thereof.

  When using an electronic device in water, it is very important that the electronic device has a watertight structure. Of course, even when the switch of the electronic device is operated underwater, it is very important that the switch of the electronic device has a watertight structure. Therefore, a technique for improving the waterproofness of a switch of an electronic device has been proposed (Patent Documents 1-3).

  In Patent Document 1, a waterproof casing, a switch provided outside the waterproof casing, a waterproof sheet that covers the opening of the waterproof casing and the periphery of the switch, and is bonded to the waterproof casing to form a watertight structure; A watertight switch is described.

  Patent Document 2 describes a technique for improving the waterproofness of a push switch by covering a button and a switch substrate with an integrally molded hard resin.

  In Patent Document 3, a printed circuit board on which an input switch is mounted, a housing for installing the printed circuit board, an elastic cover that covers the printed circuit board, a key top that pushes the switch through the elastic cover, and a switch cover that covers the outside A switch consisting of And in the switch described in patent document 3, the fitting part for fitting a key top, the outer frame part closely_contact | adhered with a housing, the elastic part with elasticity which connects a fitting part and an outer frame part, and An elastic cover made of is integrally formed. As a result, in the switch described in Patent Document 3, the waterproofness of the switch is improved by improving the sealing performance of the printed circuit board.

Japanese Utility Model Publication No. 04-033225 JP 2012-134026 A JP 2001-155573 A

  The disclosure of the above prior art document is incorporated herein by reference. The following analysis has been made from the viewpoint of the present invention.

  When an electronic device is operated in water, water pressure acts on the switch of the electronic device. When the water pressure acts on the push-type switch, the switch and / or the cover of the switch may be pushed due to the water pressure, and the switch may malfunction. However, if the hardness of the switch and / or the cover of the switch is increased in order to prevent the switch from malfunctioning based on the influence of the water pressure, the operability may be lowered.

  In the technique described in Patent Document 1, a planar membrane-like waterproof sheet is used. Therefore, in the technique described in Patent Document 1, when water pressure acts on the waterproof sheet, the waterproof sheet may be pushed inward even if the water pressure is slight, and the switch may malfunction.

  Further, in the techniques described in Patent Documents 2 and 3, there is no description about operating a switch in water. Therefore, the techniques described in Patent Documents 2 and 3 do not describe any case where water pressure acts on the switch. Therefore, when the switch described in Patent Documents 2 and 3 is used underwater, the switch may malfunction.

  Then, an object of this invention is to provide the switch mechanism which contributes to implement | achieving the switch which can be used appropriately in water and can be operated easily, and its manufacturing method.

According to a first aspect of the present invention, a switch mechanism is provided. The switch mechanism includes a housing having an opening.
Furthermore, the switch mechanism includes a push-type switch disposed inside the opening.
Further, the switch mechanism includes a push button cover, which is a soft material, arranged so as to cover the opening on the outside of the housing and protruding in a direction opposite to the switch.
Further, the switch mechanism includes a cover plate that is integrally formed with the push button cover and is fixed to the housing.
The push button cover has a rotating body shape whose side surface portion extends outward from the upper side to the lower side.
Further, the push button cover includes a protrusion for pushing the switch, which protrudes from the inside of the upper surface portion of the push button cover toward the switch.
Furthermore, the distance from the front end surface of the protrusion facing the upper surface of the switch to the upper surface of the switch is a state in which a substantially uniform load is applied to the upper surface portion and the side surface portion of the push button cover. , Larger than the displacement of the protrusion.

According to a second aspect of the present invention, a method for manufacturing a switch mechanism is provided. The manufacturing method includes a step of forming an opening in the housing.
Further, the manufacturing method includes a step of arranging a push-type switch inside the opening.
Further, the manufacturing method includes a step of forming a push button cover made of a soft material so as to protrude in a direction opposite to the switch when the cover is disposed outside the housing so as to cover the opening.
Further, the manufacturing method includes a step of forming a side surface portion of the push button cover into a rotating body shape that expands outward from the top to the bottom.
Further, the manufacturing method includes a step of forming a protrusion for pressing the switch, which protrudes from the inside of the upper surface portion of the push button cover toward the switch.
Further, the manufacturing method includes a step of integrally forming the push button cover and the cover plate.
Further, the manufacturing method includes a step of fixing the cover plate to the housing.
Furthermore, in the manufacturing method, in the step of forming the protrusion, the distance from the front end surface of the protrusion to the upper surface of the switch that faces the upper surface of the switch is the upper surface portion of the push button cover and the The protrusion is formed on the side surface portion, which is larger than the displacement amount of the protrusion when a substantially uniform load is applied.

  According to each aspect of the present invention, there is provided a switch mechanism that contributes to realizing a switch that can be appropriately used in water and can be easily operated, and a method for manufacturing the switch mechanism.

It is a figure for demonstrating the outline | summary of one Embodiment. 2 is a perspective view showing an example of a switch mechanism 100. FIG. 2 is a front view showing an example of a switch mechanism 100. FIG. 2 is a side view showing an example of a switch mechanism 100. FIG. It is AA sectional drawing of FIG. 3 is a cross-sectional side view showing an example of a switch mechanism 100. FIG. FIG. 3 is a dimension diagram showing an example of dimensions of the upper surface of the switch mechanism 100. FIG. 8 is a dimensional diagram illustrating an example of dimensions of the AA cross section of FIG. 7. FIG. 4 is a dimensional diagram showing an example of the front dimensions of the push button cover 2 and the cover plate 3. It is a figure which shows an example of the analysis conditions of structural analysis. It is a figure which shows an example of the analysis result of a structural analysis. It is a figure which shows an example of the analysis conditions of structural analysis. It is a figure which shows an example of the analysis result of a structural analysis.

  First, an outline of an embodiment will be described with reference to FIG. Note that the reference numerals of the drawings attached to the outline are attached to the respective elements for convenience as an example for facilitating understanding, and the description of the outline is not intended to be any limitation.

  As described above, a switch mechanism that contributes to the realization of a switch that can be appropriately used in water and can be easily operated is desired.

  Therefore, as an example, the switch mechanism 1000 shown in FIG. 1 is provided. The switch mechanism 1000 includes a housing 1002 having an opening 1001. Further, the switch mechanism 1000 includes a push-type switch 1003 disposed inside the opening 1001. Further, the switch mechanism 1000 includes a push button cover 1004 that is a soft material that is disposed outside the housing 1002 so as to cover the opening 1001 and is formed so as to protrude in a direction opposite to the switch 1003. . Further, the switch mechanism 1000 includes a cover plate 1005 that is integrally formed with the push button cover 1004 and is fixed to the housing 1002.

  Further, the push button cover 1004 has a rotating body whose side surface portion extends outward from the upper side to the lower side. That is, the side surface portion of the push button cover 1004 has a rotating body shape in which the rotation radius increases from the upper side to the lower side.

  Further, the push button cover 1004 includes a protrusion 1006 that protrudes from the inside of the upper surface portion of the push button cover 1004 toward the switch 1003 to press the switch 1003. Here, it is assumed that a predetermined space is provided between the tip of the protrusion 1006 and the upper surface of the switch 1003. Specifically, the distance from the tip surface of the protrusion 1006 facing the upper surface of the switch 1003 to the upper surface of the switch 1003 is a predetermined substantially uniform load (for example, It is assumed that the amount of displacement of the protrusion 1006 is larger in the state where the water pressure is applied.

  When a load acts on the upper surface portion of the push button cover 1004 from above to below, the upper surface portion of the push button cover 1004 is displaced downward. Then, along with the downward displacement of the upper surface portion of the push button cover 1004, the protrusion 1006 is displaced downward to press the switch 1003. Here, the push button cover 1004 is a soft material and has elasticity and elasticity. Therefore, when a person presses the upper surface portion of the push button cover 1004 with a finger or the like, the protrusion 1006 is displaced, and the switch 1003 can be easily turned on and off.

  By the way, when the switch mechanism 1000 is disposed in water, water pressure acts on the switch mechanism 1000. However, when the side surface portion of the push button cover 1004 has a rotating body shape that expands outward from the top to the bottom, in a state where a predetermined substantially uniform pressure is applied to the side surface portion from the outside in the normal direction. In other words, the direction in which the stress acts on the load acting from the outside does not concentrate in a predetermined direction but is dispersed. And the deformation | transformation amount of the pushbutton cover 1004 is suppressed because the direction which a stress acts disperses.

  Furthermore, as described above, the distance from the tip surface of the protrusion 1006 facing the upper surface of the switch 1003 to the upper surface of the switch 1003 is a predetermined substantially uniform load (for example, on the upper surface portion and the side surface portion of the push button cover 1004). , Water pressure) is larger than the displacement amount of the protrusion 1006 in a state where the pressure is applied. Therefore, in the switch mechanism 1000, it is possible to prevent the switch 1003 from being pressed even when the protrusion 1006 is displaced by the action of water pressure on the push button cover 1004.

  Therefore, the switch mechanism 1000 contributes to realizing a switch that can be used properly in water and can be easily operated. In particular, the switch mechanism 1000 can be used appropriately at a water depth assuming the use of the switch mechanism 1000, and contributes to realizing a switch that can be easily operated. In addition, said water pressure changes according to the use environment of the switch mechanism 1000. FIG. Therefore, it goes without saying that the thickness, hardness, etc. of the push button cover 1004 may be determined according to the water depth assumed to use the switch mechanism 1000.

[First Embodiment]
The first embodiment will be described in more detail with reference to the drawings.

  FIG. 2 is a perspective view showing an example of the switch mechanism 100 according to the present embodiment. Referring to FIG. 2, the switch mechanism 100 includes a push button cover 2 on the top surface of the housing 1, and a cover plate 3 between the push button cover 2 and the housing 1. In FIG. 2, the push button cover 2 includes two buttons (portions protruding upward in the push button cover 2), but the switch mechanism 100 is not intended to limit the number of buttons to two. In the switch mechanism 100, the number of buttons is not limited, and may be one or three or more.

  FIG. 3 is a front view showing an example of the position of the switch mechanism 100 shown in FIG. FIG. 4 is a side view (a right side view and a left side view) showing an example of the switch mechanism 100 shown in FIG. 2, 3, and 4 mainly describe members related to the switch mechanism 100 according to the present embodiment.

  5 is a cross-sectional view taken along the line AA in FIG. Referring to FIG. 5, the casing 1 includes an opening 4 in the switch mechanism 100. Here, it is preferable that the housing | casing 1 is a watertight structure. Furthermore, the switch mechanism 100 includes a push button cover 2 on the outside of the housing 1 so as to cover the opening 4. The cover plate 3 is integrally formed with the push button cover 2 and is fixed to the housing 1. A push-type switch 5 is disposed inside the opening 4. The push button cover 2 is formed so as to protrude in the opposite direction to the switch 5. Here, the push button cover 2 is arranged so that the protruding portion of the push button cover 2 is located immediately above the switch 5.

  The push button cover 2 has a rotating body shape in which the side surface portion 2a extends outward from the upper side to the lower side. Further, the push button cover 2 includes a rod-shaped protrusion 6 for pushing the switch 5 that protrudes from the inside of the upper surface portion 2 b of the push button cover 2 toward the switch 5.

  The housing 1 also includes a sealing material 7. The cover plate 3 is fixed to the housing 1 via a seal material 7. Further, the cover plate 3 has a through hole at a position above the switch 5 in a state where the cover plate 3 is fixed to the housing 1 via the sealing material 7. The through hole is assumed to have a size that can penetrate at least the tip of the protrusion 6.

  Hereinafter, each part of the switch mechanism 100 will be described in more detail.

  The housing 1 includes a concave opening 4 and is made of a watertight material. Further, the housing 1 includes a sealing material 7 on the contact surface with the cover plate 3. The seal material 7 is realized by using an O-ring or the like, and is made of a watertight material. Moreover, in the housing | casing 1, the contact surface with the cover board 3 is a smooth surface. Furthermore, the housing 1 includes a recess (not shown) such as a screw hole on the contact surface with the cover plate 3. Then, after the housing 1 and the cover plate 3 are bonded via the sealing material 7, the housing 1 and the cover plate 3 are joined using screws or the like. By using an O-ring or the like as the sealing material 7, the housing 1 and the cover plate 3 can be joined in a watertight manner.

  The opening 4 is concave, and a push-type switch 5 is disposed inside. The switch 5 is connected to an electric circuit (not shown) arranged inside the housing 1 or outside the housing 1.

  The push button cover 2 is a soft material and is made of a watertight material. Furthermore, the push button cover 2 is assumed to be a material that can be molded or molded by cutting or the like. For example, the push button cover 2 may be made of chloroprene rubber and molded with a mold or the like to manufacture the push button cover 2.

  Here, the push button cover 2 is an elastic material having elasticity and may be a watertight material, and the material is not limited. For example, the push button cover 2 is made of chloroprene rubber, butyl rubber, natural rubber, styrene butadiene rubber, acrylonitrile rubber, ethylene propylene rubber rubber, butadiene rubber, urethane rubber, acrylic rubber, hydrin rubber, oxid rubber, fluoro rubber, thermoplastic rubber, etc. It may be. In the following description, the material of the push button cover 2 will be described as chloroprene rubber, but this is not intended to limit the material of the push button cover 2.

  The cover plate 3 is a rigid body, has a predetermined rigidity, and is made of a watertight material. For example, the cover plate 3 may be configured using stainless steel or the like.

  The above-mentioned materials are used as materials for the push button cover 2 and the cover plate 3, and are molded in a vulcanization bonding process so that the push button cover 2 and the cover plate 3 are integrated. Specifically, a vulcanized adhesive is applied to the mating surface of the push button cover 2 and the cover plate 3, and the push button cover 2 (rubber) is heated under pressure to be molded to a predetermined hardness. As a result, the push button cover 2 is molded to a predetermined hardness in a state where the push button cover 2 and the cover plate 3 are integrated. As described above, the push button cover 2 and the cover plate 3 can be joined to the push button cover 2 and the cover plate 3 in a watertight manner by integrally forming the push button cover 2 and the cover plate 3.

  Therefore, the switch mechanism 100 can realize a watertight configuration by joining the push button cover 2 and the cover plate 3 to the housing 1 as described above.

  Next, the shape of the push button cover 2 will be described in more detail.

  As described above, the protruding portion of the push button cover 2 is disposed so as to be located immediately above the switch 5.

  For example, the push button cover 2 is preferably a flat surface having a predetermined upper surface. Since the upper surface portion 2b of the push button cover 2 is a flat surface, a person can easily push the button. This is because the upper surface portion 2b of the push button cover 2 is a plane, so that when a person pushes the button (that is, when a concentrated load is applied downward with respect to the upper surface), the direction in which the load is applied is determined. It is possible to concentrate and displace the protrusion 6 efficiently.

  Further, in a state where no concentrated load is applied to the upper surface portion 2 b of the push button cover 2, the protrusion 6 has a predetermined space between the tip surface facing the upper surface of the switch 5 and the upper surface of the switch 5. When the person presses the button (that is, when a predetermined concentrated load is applied downward with respect to the upper surface), the protrusion 6 is displaced downward and presses the switch 5 so that the switch 5 is pressed. Is set, and the switch 5 is arranged.

  Further, as described above, the side surface portion 2a of the push button cover 2 has a rotating body shape that expands outward from the upper side to the lower side. Specifically, the side surface portion 2a of the push button cover 2 is at least a part of the rotating body with the axis extending from the center of the upper surface portion 2b of the push button cover 2 toward the center of the switch 5 as a rotation axis. Preferably there is. For example, the side surface portion 2a of the push button cover 2 may have a hemispherical shell shape, a conical shape, a spheroid shape, or the like.

  By the way, when the switch mechanism 100 is disposed in water, water pressure acts on the switch mechanism 100. When focusing on the push button cover 2 in particular, a uniform water pressure acts on the push button cover 2 in the normal direction. Here, when the side surface portion 2a of the push button cover 2 is in the shape of the above rotating body, the direction in which the stress acts is dispersed with respect to the water pressure acting from the outside. As a result, the deformation amount of the side surface portion 2a and the displacement amount of the protrusion 6 are suppressed. In addition, in order to suppress the deformation amount of the side surface portion 2a and the displacement amount of the protrusion 6, the push button cover 2 preferably has a predetermined elastic coefficient, Poisson's ratio, and thickness.

  Further, the distance from the tip surface of the protrusion 6 facing the upper surface of the switch 5 to the upper surface of the switch 5 is a predetermined substantially uniform load (for example, hydraulic pressure) applied to the upper surface portion 2b and the side surface portion 2a of the push button cover 2. ) Is larger than the amount of displacement of the protrusion 6 in a state where it acts. Then, the displacement amount of the protrusion 6 in a state where a concentrated load is applied to the upper surface portion 2b of the push button cover 2, and the protrusion in a state where a substantially uniform pressure (for example, water pressure) is applied to the upper surface portion 2b and the side surface portion 2a. 6 is different from the displacement amount. Therefore, when a substantially uniform pressure (for example, water pressure) is applied to the push button cover 2, the protrusion 6 is not sufficiently displaced to press the switch 5, and the switch 5 can be prevented from operating. In addition, when a substantially uniform pressure (for example, water pressure) is applied to the push button cover 2, the material characteristics (elastic coefficient, Poisson's ratio) of the push button cover 2 are prevented so that the switch 5 does not operate due to the displacement of the protrusion 6. Etc.), and the length of the projection 6 is designed.

  Next, the operation of the switch mechanism 100 will be described in detail with reference to the drawings. In the following description, the case where the side surface portion 2a of the push button cover 2 has a hemispherical shell shape will be described as an example.

  FIG. 6 is a sectional side view showing an example of the switch mechanism 100. 6 is a cross-sectional view taken along the line AA in FIG. 4, similarly to FIG. 5. In addition, the unit of the dimension shown in FIG. 6 shall be mm.

  In the switch mechanism 100 shown in FIG. 6, the push button cover 2 is made of chloroprene rubber having a thickness of 1.5 [mm], and is formed in a hemispherical shell shape having an outer radius of 4.5 [mm] of the side surface portion 2a. Yes. In the switch mechanism 100 shown in FIG. 6, the protrusion 6 has a cylindrical shape with a diameter of 4 [mm], and the upper surface portion 2 b is formed by being exposed from the hemispherical shell constituting the side surface. That is, in the switch mechanism 100 shown in FIG. 6, the upper surface portion 2b of the push button cover 2 has a circular shape with a diameter of 4 [mm] on a plane.

  7, 8, and 9 are dimension diagrams showing an example of detailed dimensions of the switch mechanism 100. FIG. 7 is a dimension diagram showing an example of the dimension of the upper surface of the switch mechanism 100. FIG. 8 is a dimension diagram showing an example of the dimension of the AA cross section of FIG. FIG. 9 is a dimensional diagram showing an example of the front dimensions of the push button cover 2 and the cover plate 3. 7, 8, and 9, the unit of dimension is mm.

  As shown in FIGS. 7, 8, and 9, the push button cover 2 has a cover plate 3 and a joint portion. As shown in FIG. 7, the push button cover 2 has a height 22 [mm] and a width 42 [mm] at the joint portion with the cover plate 3. As shown in FIG. 9, the cover plate 3 is a flat plate having a thickness of 1.5 [mm]. In the following description, it is assumed that the material of the cover plate 3 is stainless steel.

  Next, a case where a concentrated load acts on the upper surface portion 2b of the push button cover 2 in the switch mechanism 100 having the dimensions shown in FIGS. 7, 8, and 9 will be described.

  10 and 11 show the analysis conditions and analysis results of the structural analysis related to the displacement of the protrusion 6 and the deformation of the side surface portion 2a of the push button cover 2. FIG. Specifically, FIG. 10 shows analysis conditions when a concentrated load is applied to the upper surface portion 2 b of the push button cover 2. FIG. 11 shows an analysis result when a structural analysis using the finite element method is performed using a CAE (Computer Aided Engineering) simulation program based on the analysis conditions of FIG.

More specifically, assuming that the upper surface portion 2b of the push button cover 2 is pressed with a human finger or the like, a concentrated load of 30 [N] is applied to the upper surface portion 2b of the push button cover 2 as an analysis condition. It shall act. As analysis conditions shown in FIG. 10, the push button cover 2 is made of chloroprene rubber of 60 °, an elastic coefficient of 4361000 [N / m ² ], and a Poisson's ratio of 0.48. The cover plate 3 is stainless steel (A5052-H32 (JIS standard)). Further, it is assumed that the periphery and the four surfaces of the housing 1 are fixed by the cover plate 3.

  As shown in FIG. 11, when a concentrated load of 30 [N] is applied to the upper surface 2b of the push button cover 2 based on the analysis conditions shown in FIG. 2.243 [mm] displacement in the direction of the action.

  Next, the case where a uniform pressure (for example, water pressure) acts on the switch mechanism 100 in the switch mechanism 100 having the dimensions shown in FIGS.

  FIG. 12 and FIG. 13 show the analysis conditions and analysis results of the structural analysis regarding the displacement of the protrusion 6 and the deformation of the side surface portion 2a of the push button cover 2. Specifically, FIG. 12 shows analysis conditions when a uniform pressure is applied in the normal direction of the push button cover 2. FIG. 13 shows an analysis result when a structural analysis using the finite element method is performed using the CAE simulation program under the analysis conditions of FIG.

  For example, it is assumed that the switch mechanism 100 is disposed at a water depth of 30 [cm]. In that case, the pressure acting on the switch mechanism 100 is 303975 [Pa]. Therefore, assuming that the switch mechanism 100 is disposed at a water depth of 30 cm, as an analysis condition, a pressure of 303975 [Pa] is uniformly applied to the switch mechanism 100 downward from above. Here, the material characteristics and the like of the push button cover 2 and the cover plate 3 are the same as the analysis conditions shown in FIG.

  Here, as described above, when the side surface portion 2a of the push button cover 2 has a hemispherical shell shape, the direction in which the stress is applied is dispersed from the outside with respect to the load that is uniformly applied in the normal direction. As a result, as shown in FIG. 13, the deformation of the push button cover 2 is suppressed, and the displacement of the protrusion 6 is also suppressed. Therefore, as shown in FIG. 13, when a pressure of 303975 [Pa] is applied uniformly on the switch mechanism 100 from the upper side to the lower side based on the analysis conditions shown in FIG. mm].

  Furthermore, as shown in FIG. 13, when a uniform pressure (for example, water pressure) is applied to the switch mechanism 100 based on the analysis conditions shown in FIG. 12, the side surface portion 2 a of the push button cover 2 is not deformed. Further, as shown in FIG. 13, when a uniform pressure (for example, water pressure) is applied to the switch mechanism 100 based on the analysis conditions shown in FIG. 12, 30 [N] is applied to the upper surface portion 2 b of the push button cover 2. Compared with the case where the concentrated load is applied, the displacement amount of the protrusion 6 becomes a sufficiently small displacement amount.

  For example, in the switch mechanism 100 having the material characteristics and dimensions described above, the distance between the tip of the protrusion 6 and the upper surface of the switch 5 is 2 [mm]. In this case, when a concentrated load of 30 [N] is applied to the upper surface portion 2b of the push button cover 2, the protrusion 6 is displaced 2.243 [mm] as shown in FIG. Can be pressed. On the other hand, it is assumed that the switch mechanism 100 is disposed at a water depth of 30 cm and a pressure of 303975 [Pa] is applied uniformly from the upper side to the lower side. In that case, as shown in FIG. 13, since the displacement amount of the protrusion 6 is 0.690 [mm], the protrusion 6 does not contact the switch 5.

  Accordingly, when a person presses the upper surface 2b of the push button cover 2 with a finger or the like, the switch 5 operates. However, in a state where the switch mechanism 100 is disposed at a water depth of 30 cm, the switch 5 does not operate if the person does not press the upper surface portion 2b of the push button cover 2.

  As described above, when the switch mechanism 100 according to the present embodiment has the shape and material characteristics described above, the deformation state when the concentrated load is applied to the upper surface portion 2b of the push button cover 2, and the push button cover 2 is different from the deformed state when a uniform pressure is applied. Furthermore, the switch mechanism 100 according to the present embodiment is watertight. Therefore, the switch mechanism 100 according to the present embodiment can prevent the switch 5 from being pushed by mistake even if it is placed in water. Furthermore, in the switch mechanism 100 according to the present embodiment, the switch 5 can be easily operated when a person presses a button. Therefore, the switch mechanism 100 according to the present embodiment contributes to realizing a switch that can be used properly in water and can be easily operated. In particular, the switch mechanism 100 according to the present embodiment contributes to the realization of a switch that can be used appropriately and can be easily operated at a water depth assumed to be used.

  Further, in the switch mechanism 100 according to the present embodiment, the push button cover 2 including the protrusion 6 for pressing the switch 5 and the cover plate 3 are integrally formed using molding or the like. Therefore, the switch mechanism 100 according to the present embodiment can be easily and efficiently manufactured. Furthermore, the switch mechanism 100 according to the present embodiment can improve the water tightness by integrally manufacturing the push button cover 2 and the cover plate 3. Furthermore, the switch mechanism 100 according to the present embodiment contributes to improving maintainability and reliability by improving water tightness and preventing malfunction due to the influence of water pressure.

  In the switch mechanism 100 according to the present embodiment, the cover plate 3 integrated with the push button cover 2 is bonded to the housing 1 via the seal material 7. In the switch mechanism 100 according to the present embodiment, the cover plate 3 and the housing 1 can be easily fixed using screws or the like. Therefore, the switch mechanism 100 according to the present embodiment can be easily manufactured. Therefore, the switch mechanism 100 according to the present embodiment contributes to improving the productivity of the push switch that can be used underwater.

  The switch mechanism 100 according to the present embodiment has a simple configuration and can be mounted on a small device. Therefore, the switch mechanism 100 according to the present embodiment contributes to realizing the downsizing, weight reduction, and simplification of the circuit configuration of the push switch that can be used in water. Furthermore, the switch mechanism 100 according to the present embodiment can be realized by using a recyclable material (stainless steel, rubber, or the like), and contributes to improving resource reusability.

  The switch mechanism 100 according to the present embodiment is applicable to devices that need to turn on and off electricity in water. For example, the switch mechanism 100 according to the present embodiment can be applied to an underwater camera, a centralized lighting device, various sensors, an underwater robot, and the like, and the type of the device mounting the switch mechanism 100 is not limited.

  The material characteristics and dimensions described above are merely examples, and the material characteristics and dimensions of the switch mechanism 100 are not intended to be limited. If the above functions can be realized, the material characteristics and dimensions of the members constituting the switch mechanism 100 can be appropriately designed. Of course, the material characteristics and dimensions may be changed according to the device on which the switch mechanism 100 is mounted, the use environment of the switch mechanism 100 (the water depth in which the switch mechanism 100 is assumed to be used), and the like.

  A part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.

  (Additional remark 1) It is as the switch mechanism concerning the said 1st viewpoint.

  (Appendix 2) Displacement amount of the protrusion when a concentrated load is applied to the upper surface portion of the push button cover, and displacement of the protrusion when the substantially uniform load is applied to the upper surface portion and the side surface portion. The switch mechanism according to appendix 1, wherein the amount is different.

  (Supplementary note 3) In the supplementary note 1 or 2, the side surface portion is at least a part of a rotating body whose axis of rotation is an axis extending from the center of the upper surface portion of the push button cover toward the center of the switch. The switch mechanism described.

  (Additional remark 4) The said housing | casing is further equipped with the sealing material, The said cover plate is fixed to the said housing | casing via the said sealing material, The said cover plate is attached to the said housing | casing via the said sealing material. The fixed hole has a through hole at a position above the switch in a fixed state, and the through hole has a size that can penetrate at least the tip of the protrusion. Switch mechanism.

  (Supplementary note 5) The switch mechanism according to any one of supplementary notes 1 to 4, wherein the cover plate is a rigid body and has a predetermined rigidity.

  (Additional remark 6) The switch mechanism as described in any one of additional marks 1 thru | or 5 comprised by watertight.

  (Additional remark 7) It is as the manufacturing method of the switch mechanism which concerns on the said 2nd viewpoint.

  (Supplementary Note 8) In the step of forming the side surface portion into a rotating body, at least a part of the rotating body having an axis extending from the center of the upper surface portion of the push button cover toward the center of the switch as a rotation axis The manufacturing method of the switch mechanism according to appendix 7, wherein the side surface portion is formed.

  (Additional remark 9) Manufacture of the switch mechanism of Additional remark 7 or 8 which molds and integrates the said push button cover and the said cover board in the process of integrally forming the said push button cover and a cover board. Method.

  (Additional remark 10) The process of arrange | positioning a sealing material to the said housing, The process of fixing the said cover board to the said housing via the said sealing material, The said cover board was fixed to the said housing via the said sealing material A method of manufacturing the switch mechanism according to any one of appendices 7 to 9, further comprising: forming a through-hole having a size capable of penetrating at least the tip of the protrusion at a position above the switch. .

  The disclosure of the above patent document is incorporated herein by reference. Within the scope of the entire disclosure (including claims) of the present invention, the embodiment can be changed and adjusted based on the basic technical concept. Further, various combinations or selections of various disclosed elements (including each element of each claim, each element of each embodiment, each element of each drawing, etc.) are possible within the framework of the entire disclosure of the present invention. is there. That is, the present invention of course includes various variations and modifications that could be made by those skilled in the art according to the entire disclosure including the claims and the technical idea. In particular, with respect to the numerical ranges described in this document, any numerical value or small range included in the range should be construed as being specifically described even if there is no specific description.

DESCRIPTION OF SYMBOLS 1,1002 Case 2,1004 Pushbutton cover 2a Side surface part 2b Upper surface part 3,1005 Cover plate 4,1001 Opening part 5,1003 Switch 6,1006 Protrusion 7 Seal material 100, 1000 Switch mechanism

Claims (10)

A housing having an opening;
A push-type switch disposed inside the opening;
A push button cover, which is a soft material, arranged so as to cover the opening on the outside of the housing, and shaped to protrude in the opposite direction to the switch;
A cover plate formed integrally with the push button cover and fixed to the housing;
With
The push button cover has a rotating body whose side surface extends outward from the upper side to the lower side,
The push button cover includes a protrusion for pushing the switch, which protrudes from the inside of the upper surface portion of the push button cover toward the switch.
The distance from the front end surface of the protrusion, which faces the upper surface of the switch, to the upper surface of the switch is the state in which a substantially uniform load is applied to the upper surface portion and the side surface portion of the push button cover. A switch mechanism that is larger than the displacement of the protrusion.   The displacement amount of the protrusion when a concentrated load is applied to the upper surface portion of the push button cover is different from the displacement amount of the protrusion when the substantially uniform load is applied to the upper surface portion and the side surface portion. The switch mechanism according to claim 1.   3. The switch according to claim 1, wherein the side surface portion is at least a part of a rotating body whose axis of rotation is an axis extending from the center of the upper surface portion of the push button cover toward the center of the switch. mechanism. The housing further includes a sealing material,
The cover plate is fixed to the housing via the sealing material,
The cover plate has a through hole at a position above the switch in a state where the cover plate is fixed to the housing via the sealing material,
The switch mechanism according to any one of claims 1 to 3, wherein the through hole has a size capable of penetrating at least a tip of the protrusion.   The switch mechanism according to any one of claims 1 to 4, wherein the cover plate is a rigid body and has a predetermined rigidity.   The switch mechanism according to claim 1, wherein the switch mechanism is watertight. Forming an opening in the housing;
Placing a push-type switch inside the opening;
When the push button cover of a soft material is disposed so as to cover the opening on the outside of the housing, the step of projecting in a direction opposite to the switch,
Forming a side surface portion of the push button cover into a rotating body extending outward from the upper side to the lower side;
Forming a protrusion for pressing the switch, protruding from the inside of the upper surface portion of the push button cover toward the switch;
A step of integrally molding the push button cover and the cover plate;
Fixing the cover plate to the housing;
Including
In the step of forming the protrusion, the distance from the front end surface of the protrusion facing the upper surface of the switch to the upper surface of the switch is substantially uniform on the upper surface portion and the side surface portion of the push button cover. A method for manufacturing a switch mechanism, wherein the protrusion is formed larger than a displacement amount of the protrusion in a state where a load is applied.   In the step of forming the side surface portion into a rotating body, the rotating shaft is an axis extending from the center of the upper surface portion of the push button cover toward the center of the switch, and becomes at least a part of the rotating body, The method for manufacturing a switch mechanism according to claim 7, wherein the side portion is formed.   The method for manufacturing a switch mechanism according to claim 7 or 8, wherein, in the step of integrally forming the push button cover and the cover plate, the push button cover and the cover plate are integrally formed by molding. Placing a sealing material on the housing;
Fixing the cover plate to the housing via the sealing material;
When the cover plate is fixed to the housing via the sealing material, forming a through-hole having a size capable of penetrating at least the tip of the protrusion at a position above the switch;
The manufacturing method of the switch mechanism as described in any one of Claims 7 thru | or 9 containing these.