JP7276966B2 - Tamper switch sealing structure and sealing method - Google Patents

Description

The present invention relates to a sealing structure and sealing method for a tamper switch applied to security sensors and the like.

As security sensors, various tamper switches are used that can detect whether or not a device has been physically removed from a fixed surface.

Such a tamper switch incorporates a switch member for reversing ON/OFF in the circuit depending on the mounting state of the device.
As the switch member, an elastically deformable elastic switch member that mechanically changes its position depending on the mounting state of the device is used.

For example, the wall tamper switch disclosed in Patent Document 1 detects that the sensor main body has been removed from the mounting plate serving as the surface to be fixed (that the sensor body has been tampered with) during non-alert operation or the like.
This wall tamper switch includes a tamper switch element body and an elastic switch member made of rubber.

The elastic switch member is mounted in the tampering opening of the casing member, and is received from the mounting plate in a state in which the sensor main body is removed from the mounting plate, which is the surface to be fixed (state in which tampering is performed). The applied pressure is released.
As a result, the elastic switch member returns to a shape that does not receive external force, and is released from being pushed. As a result, the passive infrared sensor in the wall tamper switch will emit a tamper detection signal as a trouble signal if it is removed from the mounting plate.

Further, Patent Document 2 shown as related art discloses a waterproof structure of a breast-talk lever portion.
In the waterproof structure of the breath talk lever portion, a waterproof rubber is provided between the push button portion, which is the actuation portion of the breath switch, and the breath talk lever provided swingably on the housing.

This waterproof rubber is fitted in the recessed opening of the housing, and has a flange-shaped outer edge that is in close contact with the peripheral edge of the opening, and a central portion that is coaxial with the push button portion of the breath talk switch. It consists of a main body portion arranged in the body and a thin skirt portion connecting them.
In such a waterproof rubber, the particularly thin skirt portion is elastically deformed, so that the displacement of the breath talk lever, which is the object to be fixed, is transmitted to the push button portion of the breath talk switch and the breath talk switch. Maintain a clean state by making the inner side watertight.

JP-A-2005-276656 Japanese Utility Model Laid-Open No. 3-22332

In the elastic switch member shown in Patent Document 1 and the waterproof rubber shown in Patent Document 2, it is possible to prevent foreign matter such as dust or moisture such as water droplets from entering at the sealing portion between the casing member and the housing. can be done.
However, in Patent Document 1, foreign matter such as dust adheres to the outer region of the elastic switch member facing the mounting plate, which is the object to be fixed. Similarly, in Patent Document 2, foreign matter such as dust adheres to the outer region of the waterproof rubber facing the brace lever, which is the object to be fixed.

Furthermore, in the elastic switch member/waterproof rubber disclosed in Patent Documents 1 and 2, liquids or solutions other than these dusts enter the surface or recesses of the elastically deformed parts of the waterproof rubber, and dry, harden, or freeze water. As a result, there is a concern that the elastically deformed portion will be fixed and its restoration will be hindered.
As a result, in the elastic switch member/waterproof rubber disclosed in Patent Documents 1 and 2, the adherence of foreign matter hinders normal elastic deformation, which may cause the switch operating member to malfunction.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is capable of preventing adhesion of foreign matter, which may hinder elastic deformation, in an outer region facing a fixed object, and preventing malfunction of a switch actuating member. A sealing structure and sealing method for a tamper switch are provided.

In order to solve the above problems, the present invention proposes the following means.
In the tamper switch sealing structure according to the first aspect of the present invention, the tamper switch element is housed inside the casing member and detects, via the switch actuating member, whether or not the tamper switch element is physically removed from the fixed surface. and an elastic switch member made of an elastically deformable material that is fitted in the opening of the casing member and transmits a change in position when the tamper switch is removed from the fixed surface to the switch operating member. wherein the elastic switch member comprises a case seal member installed so as to be able to seal the opening edge of the casing member; A front end portion is provided so as to be able to abut and press, and a rear end portion is provided so as to be able to abut and press the switch operating member of the tamper switch element, and when removed from the fixing target surface, it returns to its original shape. a switch body for releasing the pressure applied to the switch actuating member; and a seal wall provided outside the casing member and surrounding the tip of the switch body so as to surround the switch body. characterized by having

In the tamper switch sealing method according to the second aspect of the present invention, whether or not the tamper switch element is housed inside the casing member and physically removed from the fixed surface is detected via the switch actuating member. and when the tamper switch element is formed of an elastically deformable material, is fitted to the switch operating member of the tamper switch element at the opening of the casing member so as to be able to abut against it, and is removed from the fixing target surface. and an elastic switch member for transmitting a change in the position of the switch to the switch operating member, the step of providing a case seal member for sealing an opening edge of the casing member; The tamper switch element is provided so as to be capable of swinging, and has a front end that can abut against and press against the surface to be fixed, and a rear end that can abut and press against the switch actuating member of the tamper switch element. providing a switch body which, when removed from the surface, returns to its original shape to release pressure on the switch actuating member; providing a sealing wall surrounding the switch body to form the elastic switch member.

According to the present invention, the seal wall provided so as to surround the switch main body at the outer position of the casing member and around the tip of the switch main body prevents elastic deformation of the switch main body. It is possible to prevent adhesion of foreign matter and prevent malfunction of the switch operating member.

1 is a schematic diagram of a tamper switch showing the minimum configuration of the present invention; FIG. 1 is an exploded perspective view of a tamper switch according to an embodiment of the present invention; FIG. FIG. 4 is a cross-sectional view showing a state in which the tamper switch is removed from the fixing target surface of the mounting wall; FIG. 4 is a cross-sectional view showing a state in which the tamper switch is attached to the fixing target surface of the attachment wall; FIG. 3 shows a modified embodiment 1 (second modified example) of the seal wall indicated by symbol V. FIG. FIG. 3 shows a modified embodiment 2 (second modified example) of the seal wall indicated by symbol V. FIG. FIG. 3 shows a modified embodiment 3 (second modified example) of the seal wall indicated by symbol V in FIG. FIG. 3 shows a modified embodiment 4 (second modified example) of the seal wall indicated by symbol V in FIG. FIG. 11 is a cross-sectional view showing a modified embodiment (third modified example) of the tamper switch;

A tamper switch showing the minimum configuration of the present invention will be described with reference to FIG.
A tamper switch denoted by reference numeral 100 in FIG. 1 has a tamper switch element 1, an elastic switch member 2 and a casing member C as main components.

The tamper switch element 1 is accommodated inside the casing member C (arrow A1 side) and detects through the switch actuation member 3 whether or not it is physically removed from the fixing target surface S.
The elastic switch member 2 is made of an elastically deformable material, and is fitted through the opening CA of the casing member C so as to be able to come into contact with the switch operating member 3 of the tamper switch element 1 and fixed. The change in position when removed from the target surface S is transmitted to the switch actuating member 3 .

Specifically, the elastic switch member 2 is composed of a case seal member 4 , a switch main body 5 and a seal wall 6 .
The case seal member 4 is installed so as to be able to seal the opening edge portion CA1 of the casing member C. As shown in FIG.
The switch main body 5 is provided so as to be swingable and elastically deformable with respect to the case seal member 4 via an elastic film 7 .
In the switch main body 5, the front end portion 5A is provided so as to be able to abut and press against the fixing target surface S of the mounting wall 8, and the rear end portion 5B abuts and presses the switch operating member 3 of the tamper switch element 1. It is provided so as to be pressable, and when it is removed from the fixing target surface S of the mounting wall 8 , it returns to its original shape via the elastic force of the elastic film 7 .
The seal wall 6 is provided outside the casing member C (on the arrow A2 side) and around the tip portion 5A of the switch body 5 so as to surround the switch body 5. As shown in FIG.

In the present invention configured as described above, when the tamper switch 100 is normally mounted (state shown in FIG. 1), the tip portion 5A of the switch main body portion 5 of the elastic switch member 2 is positioned on the fixing target surface S. is in contact with and pressed against.
As a result, in the elastic switch member 2, the rear end portion 5B is pressed against the switch operating member 3 of the tamper switch element 1, and the tamper switch element 1 is in the ON state (no abnormality detection signal is output). can be maintained.

After that, when the tamper switch 100 is removed, the distance between the tamper switch 100 and the surface S to be fixed widens, so that the switch body 5 of the elastic switch member 2 moves away from the surface S to be fixed and the pressed state is released. will be canceled.

As a result, the switch main body 5 of the elastic switch member 2 returns to its original shape through the elastic film 7, so that the switch operating member 3 of the tamper switch element 1 is not pressed, and the tamper switch The element 1 can be switched to the OFF state (output of the abnormality detection signal).
That is, with the tamper switch 100 of the present invention, by detecting the ON/OFF switching of the tamper switch element 1, the administrator can quickly recognize abnormal removal of the device equipped with the tamper switch 100. .

In the tamper switch 100 of the present invention, the elastic switch member 2 surrounds the switch body 5 particularly at the outer side of the casing member C (arrow A2 side) and around the tip 5A of the switch body 5. A sealing wall 6 is provided as follows.
As a result, in the tamper switch 100 of the present invention, the seal wall 6 surrounding the switch body 5 prevents foreign matter from adhering to the tip portion 5A of the switch body 5 and the peripheral region W of the elastic film 7, which may hinder elastic deformation. Thus, it is possible to prevent malfunction of the switch actuating member 3 in the tamper switch element 1 .

(embodiment)
Embodiments of the present invention will be described with reference to FIGS. 2 to 9. FIG.
2 is an exploded perspective view of the tamper switch 101 according to the embodiment, FIGS. 3 and 4 are sectional views showing the operation of the tamper switch 101, and FIGS. 9A and 9B are views showing embodiments, and FIG. 9 is a sectional view showing a modified embodiment of the tamper switch 101. FIG.

The tamper switch indicated by reference numeral 101 in FIG. 2 has a tamper switch element 10, an elastic switch member 11, and a casing member C1 as main components, and is detached from the fixing target surface S1 of the mounting wall 50. Detect anomalies in
The tamper switch 101 of this example is formed in a symmetrical shape with respect to the central axis O. As shown in FIG.

The tamper switch element 10 is accommodated inside the casing member C1 (side of the arrow a1) as shown in FIGS. It is detected by pressing or releasing it.
The tamper switch element 10 is installed on an element mounting plate 12 provided separately from the casing member C1.
The tamper switch element 10 outputs an ON signal when the switch actuating member 10A is pushed (see FIG. 4), and when the switch actuating member 10A is released from being pushed and is in a projecting state. , an OFF signal serving as an abnormality detection signal is output (see FIG. 3).

The elastic switch member 11 is made of a material that can be elastically deformed, and is fitted to the annular flange portion 14 forming the opening 13 of the casing member C1 to prevent a change in shape when removed from the fixing target surface S1. It is transmitted to the switch actuating member 10A of the element 10. As shown in FIG.

Specifically, the elastic switch member 11 is composed of a case seal member 20 , a switch body 22 including an elastic film 21 , and a seal wall 23 .
The case seal member 20 can seal the side portion 14A of the annular flange portion 14 provided along the central axis O when the elastic switch member 11 is fitted to the annular flange portion 14 of the casing member C1. .

The switch main body 22 is provided on the case seal member 20 via the elastic film 21 so as to be swingable and elastically deformable.
The switch main body 22 includes a pressure receiving protrusion 24 whose tip end portion is provided so as to be able to abut and press the fixing target surface S1 of the mounting wall 50 in the direction of the arrow a2, and the switch operating member 10A of the tamper switch element 10. It has integrally an actuating projection 25 provided at its end so as to be able to abut and press in the direction of the arrow a1, and is provided to be swingable and elastically deformable with respect to the case seal member 20 via the elastic membrane 21 .

In the switch body 22, when the tamper switch 101 is normally attached to the fixing target surface S1 of the attachment wall 50, the tip of the pressure-receiving protrusion 24 is elastically deformed through the elastic film 21 as a whole, and the tip of the pressure-receiving projection 24 pushes the fixing target surface S1 of the mounting wall 50, and the rear end of the actuating protrusion 25 pushes the switch actuating member 10A of the tamper switch element 10 (see FIG. 4).
When the tamper switch 101 is removed from the fixing target surface S1 of the mounting wall 50, the switch main body 22 is released from the pressed and elastically deformed state. return to shape.

A hollow portion 26 is formed inside the operating projection 25 and the pressure-receiving projection 24 to enable them to be elastically deformed.
The elastic membrane 21 is a thin-walled member provided between the operating protrusion 25 , the pressure receiving protrusion 24 and the seal wall 23 . are oscillatably connected.

The case seal member 20 is provided below the elastic membrane 21 (on the arrow a1 side) and is fitted to the annular flange portion 14 of the casing member C1.
Further, the annular flange portion 14 of the casing member C1 is arranged in the recessed portion 15 of the casing member C1, and when the elastic switch member 11 is fitted, the side portion 14A located on the outer side thereof The elastic switch member 11 is in close contact with the case seal member 20 (see FIG. 4).
In this example, as shown in FIG. 4, between the case seal member 20 and the side portion 14A of the annular flange portion 14 located on the outer side of the casing member C1, a center axis line OM, which is the fitting direction, is provided. A seal surface is formed along the

The sealing wall 23 is provided above the elastic membrane 21 and outside the casing member C1 (arrow a2 side) so as to surround the switch body 22 .

The seal wall 23 is provided so as to surround the entire circumference of the switch main body 22, and is formed in a symmetrical shape about the central axis O along the operating direction of the switch operating member 10A of the tamper switch element 10. .
Further, the seal wall 23 has a cross section that is bent in a V-shape when cut along the central axis O of the switch operating member 10A of the tamper switch element 10 .
As a result, when the tamper switch 101 is mounted, the seal wall 23 can be brought into close contact with the fixing target surface S1 of the mounting wall 50 in a slightly bent state. It is possible to prevent foreign substances from adhering to the peripheral region of the pressure-receiving protrusion 24 indicated by symbol WA, which may hinder elastic deformation.

Further, the seal wall 23 of the elastic switch member 11 and the upper portion of the pressure receiving protrusion 24 are provided so as to protrude outward (arrow a2) from the recess 15 of the casing member C1.
In addition, since the pressure-receiving protrusion 24 has a hollow portion 26 inside, it is flexible to changes in the pushing amount due to the difference in the shape of the fixing target surface S1, and absorbs the changes in the pushing amount. It is possible to prevent an excessive load from being applied to the tamper switch element 10 .

[Description of operation]
Next, the operation of the tamper switch 101 will be described.
First, in the tamper switch 101, when the elastic switch member 11 is incorporated into the casing member C1, the case seal member 20 of the elastic switch member 11 is fitted into the annular flange portion 14 of the casing member C1.
As a result, as shown in FIG. 4, the case seal member 20 of the elastic switch member 11 can be brought into close contact with the side portion 14A of the annular flange portion 14 of the casing member C1 along the entire circumference, and the opening portion 13 can be closed. Thus, the inside of the recess 15 of the casing member C1 can be sealed.

In addition, in the tamper switch 101, after the elastic switch member 11 is fitted into the casing member C1, the pressure-receiving protrusion 24 of the elastic switch member 11 can be brought into contact with the fixing target surface S1 and pressed further.
As a result, the switch main body 22 including the pressure-receiving protrusion 24 of the elastic switch member 11 is pushed into the casing member C1 (toward the arrow a1), deformed and displaced together with the elastic membrane 21, and returns to its original shape. Accumulate the resilience to return.

Further, in the elastic switch member 11, the pressing of the pressure-receiving protrusion 24 pushes the switch operating member 10A of the tamper switch element 10 against the operating protrusion 25, thereby turning the tamper switch element 10 into an ON state (no abnormality detection signal output). ).
Further, the fixing target surface S1 of the mounting wall 50 can be pushed inward (arrow a1 side) while contacting the sealing wall 23 of the elastic switch member 11 along the entire circumference.
At this time, the seal wall 23 having a V-shaped cross-section can elastically deform while following the fixation target surface S1, and can be brought into close contact with the fixation target surface S1.
As a result, the tip of the seal wall 23 can be in close contact with the fixing target surface S1 along the entire circumference to form a watertight state, and dust, water, and muddy water can be prevented from entering the hollow portion 26 in the pressure receiving protrusion 24 and the peripheral area WA. to prevent such intrusions.
As a result, in the tamper switch 101, the elastic membrane 21 that elastically deforms the switch body 22 can be maintained in a clean state. It is possible to eliminate factors that hinder the return of the body portion 22 to its original shape.
Further, when the tamper switch 101 is removed from the fixing target surface S1 of the mounting wall 50, the restoring force of the elastic film 21 causes the pressure receiving protrusion 24 and the operating protrusion 25 to return to the positions before being pushed in, and the tamper switch element is removed. 10 is also pushed up (see FIG. 3), and the tamper switch element 10 is turned off.
When the power of the tamper switch element 10 is changed from ON to OFF, a detection circuit (not shown) outputs an abnormality detection signal indicating that the casing member C1 has been removed from the fixing target surface S1.

According to the tamper switch 101 of the present embodiment configured as described above, when the tamper switch 101 of the present embodiment is normally attached to the fixing target surface S1 of the attachment wall 50, the distal end portion of the switch main body portion 22 of the elastic switch member 11 is is in contact with and pressed against the fixing target surface S1.
As a result, the elastic switch member 11 is pressed also against the switch operating member 10A of the tamper switch element 10, so that the tamper switch element 10 can be maintained in the ON state (see FIG. 4).

After that, when the tamper switch 101 is removed from the fixing surface S1 of the mounting wall 50, the gap between the tamper switch 101 and the fixing surface S1 widens, so that the switch body 22 of the elastic switch member 11 is fixed. The pressed state is released when the target surface S1 is separated.

As a result, the switch main body 22 of the elastic switch member 11 returns to its original shape through the elastic film 21, so that the switch operating member 10A of the tamper switch element 10 is not pressed, and the tamper switch is released. The device 10 can be switched to the OFF state (see FIG. 3).
That is, the tamper switch 101 of the present embodiment detects ON/OFF switching of the tamper switch element 10, thereby enabling the administrator to quickly recognize abnormal removal of the device having the tamper switch 101. Become.

Further, in the tamper switch 101 of the present embodiment, the elastic switch member 11 is sealed so as to surround the switch main body 22, particularly at the outer position (arrow a2 side) of the casing member C1 and around the switch main body 22. A wall 23 is provided.
As a result, in the tamper switch 101 of the present embodiment, the sealing wall 23 surrounding the switch main body 22 prevents adhesion of foreign matter that may hinder elastic deformation in the hollow portion 26 in the pressure receiving protrusion 24 and the peripheral area WA. It is possible to prevent malfunction of the switch actuating member 10A in the tamper switch element 10.
Furthermore, the tamper switch 101 of this embodiment has a double seal structure including the case seal member 20 that seals the opening 13 of the casing member C1 and the seal wall 23 that surrounds the switch main body 22. can further increase safety to

That is, in the tamper switch 101 of the present embodiment, the double seal structure of the case seal member 20 and the seal wall 23 surrounding the switch main body 22 prevents dust (outdoor sand dust, indoor cutting powder, etc.), water (steam, water droplets, water flow), liquids such as alcohol, muddy water, other solutions, etc. can be reliably prevented from entering, and installation (leaving) in difficult installation environments can be performed effectively.
For example, the tamper switch 101 of this embodiment can be installed in equipment used in disasters such as volcanoes, fires, floods, windbreaks, and snowstorms, and in equipment used in manufacturing and dismantling sites filled with cutting chips and dust. It can be installed in equipment that is used in a natural environment where insects, tree sap, etc. invade/adhere.

Note that the above embodiment may be modified as follows.
(First modification)
In the above embodiment, the pressure-receiving projection 24 and the operating projection 25 have the hollow portion 26 inside them, but a plurality of/many slits are provided along the central axis O of the switch operating member 10A of the tamper switch element 10. It may be formed.

(Second modification)
The seal wall 23 has a shape of a petal curved outward about the central axis O of the switch operating member 10A of the tamper switch element 10 (see FIG. 5), and the tip of the casing member C1 extends from the recess 15. It is also possible to have a semicircular shape (see FIG. 6) in which the tip protrudes outward (toward the arrow a2), or a cross-sectional shape such as a triangular tip (see FIG. 7).
Further, the seal wall 23 has a V-shaped bent shape when cut along the central axis O of the switch actuating member 10A of the tamper switch element 10. The shape may be provided in a plurality of stages (see FIG. 8).

(Third modification)
In the above-described embodiment, the tamper switch 101 is attached to the flat surface to be fixed S1 on the mounting wall 50, but it may be attached to the surface to be fixed S2 having a curved surface as shown in FIG.
In the case of the fixing target surface S2, the pressing amount of the pressure-receiving protrusion 24 in the elastic switch member 11 is larger than that of the planar fixing target surface S1.
This increased amount of pushing is absorbed by the deformation of the pressure-receiving protrusion 24 and the operating protrusion 25 having the hollow portion 26 therein, and the pressing of the tamper switch element 10 against the switch operating member 10A does not become excessive. .

In addition, the sealing wall 23 as a whole is elastically deformed so that the dogleg cross-sectional shape sinks following the pushing amount of the curved fixing target surface S2, and the sealed state can be maintained around the entire periphery.
The surface to be fixed other than the flat surface is not limited to the curved surface, and it is possible to deal with irregular shapes other than the cylindrical surface.

As described above, the embodiment of the present invention has been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment, and design changes and the like are included within the scope of the present invention.

The present invention relates to a sealing structure and sealing method for a tamper switch applied to security sensors and the like.

REFERENCE SIGNS LIST 1 tamper switch element 2 elastic switch member 3 switch actuation member 4 case seal member 5 switch body 5A front end 5B rear end 6 seal wall 7 elastic film 8 mounting wall 10 tamper switch element 10A switch actuation member 11 elastic switch member 12 element Mounting plate 13 Opening 14 Annular flange 14A Side 15 Recess 20 Case seal member 21 Elastic film 22 Switch body 23 Seal wall 24 Pressure receiving protrusion 25 Operating protrusion 26 Hollow part 50 Mounting wall 100 Tamper switch 101 Tamper switch C Casing Member C1 Casing member CA Opening CA1 Opening edge S Surface to be fixed S1 Surface to be fixed O Central axis W Peripheral area WA Peripheral area

Claims (8)

a tamper switch element that detects, via a switch actuation member, whether or not the tamper switch element is housed inside the casing member and physically removed from the surface to be fixed;
an elastic switch member made of an elastically deformable material that is fitted in the opening of the casing member and transmits a change in position when removed from the fixing target surface to the switch operating member;
a mounting wall disposed on the opposite side of the tamper switch element with the elastic switch member therebetween and having the surface to be fixed, the tamper switch sealing structure comprising :
The elastic switch member is
a case seal member installed so as to be able to seal an opening edge of the casing member;
It is provided on the case seal member so as to be capable of swinging via an elastic film, and its front end portion can abut and press against the surface to be fixed, and its rear end portion can abut and press against the switch operating member of the tamper switch element. a switch main body portion, which is respectively provided as possible and which returns to its original shape when removed from the fixing target surface to release the pressure on the switch actuating member;
a seal wall provided outside the casing member and around the tip of the switch body so as to surround the switch body and in contact with the surface to be fixed ;
The seal wall is provided on the case seal member so as to surround the switch body,
The seal wall is formed in a symmetrical shape about an axis along the operating direction of the switch operating member of the tamper switch element,
The seal wall has a cross-section that is bent in a V-shape when cut along the axis of the switch actuation member of the tamper switch element,
A sealing surface along the axis connecting the switch main body and the switch operating member is formed between the case seal member and the annular flange portion of the opening edge.
A tamper switch sealing structure characterized by: 2. The tamper switch sealing structure according to claim 1, wherein the bent shape of the V-shape is provided in a plurality of stages. 3. The tamper switch sealing structure according to claim 1, wherein the seal wall has a slit along the axis of the switch operating member of the tamper switch element. a tamper switch element that detects, via a switch actuation member, whether or not the tamper switch element is housed inside the casing member and physically removed from the surface to be fixed;
an elastic switch member made of an elastically deformable material that is fitted in the opening of the casing member and transmits a change in position when removed from the fixing target surface to the switch operating member;
a mounting wall disposed on the opposite side of the tamper switch element with the elastic switch member therebetween and having the surface to be fixed, the tamper switch sealing structure comprising :
The elastic switch member is
a case seal member installed so as to be able to seal an opening edge of the casing member;
It is provided on the case seal member so as to be capable of swinging via an elastic film, and its front end portion can abut and press against the surface to be fixed, and its rear end portion can abut and press against the switch operating member of the tamper switch element. a switch main body portion, which is respectively provided as possible and which returns to its original shape when removed from the fixing target surface to release the pressure on the switch actuating member;
a seal wall provided outside the casing member and around the tip of the switch body so as to surround the switch body and in contact with the surface to be fixed ;
The seal wall is provided on the case seal member so as to surround the switch body,
The seal wall is formed in a symmetrical shape about an axis along the operating direction of the switch operating member of the tamper switch element,
The sealing wall is formed in a petal shape centering on the axis of the switch operating member of the tamper switch element,
A sealing surface along the axis connecting the switch main body and the switch operating member is formed between the case seal member and the annular flange portion of the opening edge.
A tamper switch sealing structure characterized by: 5. The case seal member is in contact with the outer surface of the opening edge of the casing member via a seal surface along the axis of the switch actuation member of the tamper switch element. The tamper switch sealing structure according to any one of Claims 1 to 3. The tamper switch seal according to any one of claims 1 to 5 , wherein the tip of the switch body and the seal wall are in contact with the fixed surface formed on a plane or curved surface. stop structure. a tamper switch element that detects, via a switch actuation member, whether or not the tamper switch element is housed inside the casing member and physically removed from the surface to be fixed;
The position when the tamper switch element is formed of an elastically deformable material, is fitted to the switch operating member of the tamper switch element at the opening of the casing member so as to be able to abut against it, and is removed from the fixing target surface. a resilient switch member for transmitting a change to the switch actuation member;
a mounting wall disposed on the opposite side of the tamper switch element with the elastic switch member therebetween and having the surface to be fixed;
A tamper switch sealing method for a tamper switch having
sealing by closely fitting a case seal member around the annular flange portion of the opening of the casing member;
It is provided on the case seal member so as to be capable of swinging via an elastic film, and its front end portion can abut and press against the surface to be fixed, and its rear end portion can abut and press against the switch operating member of the tamper switch element. The tamper switch element and the mounting wall are elastically deformed in a switch main body portion which is provided as possible and which returns to its original shape when removed from the fixing target surface to release the pressure on the switch operating member. and
sealing with a sealing wall surrounding the switch body at an outer position of the casing member and around the distal end of the switch body;
has
elastically deforming the seal wall so that when cut along the axis of the switch actuation member of the tamper switch element, the cross section is bent into a V-shape;
A method of sealing a tamper switch. a tamper switch element that detects, via a switch actuation member, whether or not the tamper switch element is housed inside the casing member and physically removed from the surface to be fixed;
The position when the tamper switch element is formed of an elastically deformable material, is fitted to the switch operating member of the tamper switch element at the opening of the casing member so as to be able to abut against it, and is removed from the fixing target surface. a resilient switch member for transmitting a change to the switch actuation member;
a mounting wall disposed on the opposite side of the tamper switch element with the elastic switch member therebetween and having the surface to be fixed;
A tamper switch sealing method for a tamper switch having
sealing by closely fitting a case seal member around the annular flange portion of the opening of the casing member;
It is provided on the case seal member so as to be capable of swinging via an elastic film, and its front end portion can abut and press against the surface to be fixed, and its rear end portion can abut and press against the switch operating member of the tamper switch element. The tamper switch element and the mounting wall are elastically deformed in a switch main body portion which is provided as possible and which returns to its original shape when removed from the fixing target surface to release the pressure on the switch operating member. and
sealing with a sealing wall surrounding the switch body at an outer position of the casing member and around the distal end of the switch body;
has
elastically deforming the seal wall so as to form a petal shape centered on the axis of the switch actuation member of the tamper switch element;
A method of sealing a tamper switch.

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