JP5272470B2 - Pressure sensor - Google Patents

Description

  The present invention relates to a pressure-sensitive sensor used as, for example, a seating detection sensor that detects the presence or absence of a seated person on a vehicle seat.

  Conventionally, for the purpose of improving the film yield in a film-type pressure-sensitive sensor, for example, pressure-sensitive sensors described in Patent Documents 1 and 2 have been proposed.

  This pressure-sensitive sensor includes a film portion that extends on a plane and includes a plurality of sensor portions, and a connector that outputs an output result of the sensor portions to the outside. As shown in FIG. 3 of Patent Document 2, the pressure-sensitive sensor is disposed between an upper surface of a cushion pad that constitutes a vehicle seat and a seat cover that covers the cushion pad.

  As shown in FIG. 4 of Patent Document 1, the film portion provided with the sensor portion has a configuration in which a pair of films are spaced apart from each other via an insulating insulating spacer. Each film is provided with a conductive layer, and the conductive layer is located between the insulating spacer and the film. Here, the insulating spacer in the sensor portion is provided with a through hole. Therefore, when the weight of the occupant acts on the sensor unit, each conductive layer comes into contact with the inside of the through hole and energizes to detect the seating of the occupant. And the output result is output outside via the connector connected to the end of a film part.

Here, conventionally, in order to improve the yield of a film, the film which makes many film parts from one film sheet is devised. For example, as shown in FIG. 1 of Patent Document 1, a detection area is obtained by using a film in a straight line, folding back a plurality of portions of the film part by 180 degrees, and arranging a sensor part provided in the film part in a wider range. Is spreading.
JP 2001-66371 A JP 2001-133340 A

  However, when the film part is folded 180 degrees as in the prior art, a large bending stress is applied to the folded part formed by folding the film part. As a result, there is a risk that the film portion will be damaged, such as the occurrence of cracks in the film or disconnection of the conductive layer. Therefore, it has been proposed to regulate the minimum bending radius of the bent portion by fixing the film portion with a spacer in order to suppress breakage of the film portion. However, since the pressure-sensitive sensor is disposed between the upper portion of the cushion pad and the seat cover, if the spacer is sandwiched between the bent portions, the thickness of the bent portions increases, so that the seated passenger may feel uncomfortable. Further, although the film yield is improved, the number of parts is increased.

  Therefore, the present invention has been made in view of such circumstances, and an object of the present invention is to provide a pressure-sensitive sensor capable of suppressing breakage of a film portion without increasing the number of parts.

In order to solve the above-mentioned problem, in the invention according to claim 1, a film unit including a sensor unit that detects pressurization by conducting at least two strip-shaped conductors of a plurality of strip-shaped conductors when pressed. A pressure-sensitive sensor provided on an arrangement surface of an object to be disposed, wherein the film portion is further disposed on the arrangement surface. An insertion portion that is inserted into an insertion hole provided in a direction orthogonal to the surface, and a bending portion that is coupled to the end portion of the insertion portion and bends in a direction orthogonal to the insertion portion from the end portion And a detection unit that is connected to an end of the bent part and is located on the arrangement surface and has the sensor part, and the film part has a plurality of the detection part and the bent part. And at least two of the detection units are different from each other. The positional relationship between so as bent portions which are disposed on the arrangement surface is to subject matter that you have bent oriented.

According to the said structure, when arrange | positioning a pressure sensor, a film part is bend | folded in the direction orthogonal to an insertion part. For this reason, the bending stress which acts on a bending part is suppressed compared with the case where the film part is folded 180 degree | times conventionally. Therefore, it is not necessary to regulate the minimum bending radius of the bent portion using a spacer or the like when the film is bent as in the prior art, and the damage to the film portion can be suppressed without increasing the number of parts. Further, since at least two of the detection units are arranged on the arrangement surface in different directions, the sensor unit can be arranged in a wide range, and the detection range can be expanded.

  Here, the “perpendicular direction” is defined not only to be perpendicular, that is, a direction that intersects at 90 degrees, but also includes a direction that intersects a direction having a certain width around 90 degrees.

In the invention described in claim 2, the pressure sensor arrangement設体comprises a pressure-sensitive sensor according to claim 1, and the distribution設物with disposition surface of the pressure sensor is arranged, The gist of the object is to have an insertion hole provided on the arrangement surface in a direction orthogonal to the arrangement surface.

With the above configuration, the same effect as that of the first aspect is achieved.

According to a third aspect of the present invention, in the pressure-sensitive sensor arrangement body according to the second aspect, the insertion hole of the object to be arranged has a bottom portion with which the insertion end of the insertion portion of the pressure-sensitive sensor abuts. It is summarized as having.

  According to the above configuration, the pressure-sensitive sensor can be disposed in the portion to be disposed with reference to the position where the insertion end of the insertion portion is in contact with the bottom portion of the insertion hole. In this case, positioning of the pressure sensitive sensor is facilitated.

According to a fourth aspect of the present invention, in the pressure-sensitive sensor arrangement body according to the second or third aspect , the insertion hole is a through-hole through which the external connection portion can be inserted and the object to be disposed is penetrated. It is summarized as having.

  According to the above configuration, since the insertion hole has the through hole that penetrates the object to be disposed, the external connection portion can be accommodated inside the object to be disposed.

According to a fifth aspect of the present invention, in the pressure-sensitive sensor arrangement body according to the second or third aspect , the object can be inserted into the external connecting portion at a place different from the insertion hole. In addition, the gist is to have a through-hole penetrating the object.

  According to the above configuration, the object to be disposed has the through-hole penetrating the object to be disposed, so that the external connection portion can be stored inside the object to be disposed.

In the invention described in claim 6 , when pressurized, at least two strip-shaped conductors of a plurality of strip-shaped conductors are electrically connected to each other, and the film portion including a sensor unit that detects pressurization and the strip-shaped conductor are connected to the outside. In the pressure sensor mounting method in which a pressure sensor having an external connection portion is disposed on a surface on which an object is disposed, a part of the film portion is disposed on the surface on the surface. Inserting into an insertion hole provided in an orthogonal direction, forming a bent portion by bending a portion extending from the insertion hole of the film portion in a direction orthogonal to the insertion hole, and the sensor unit is A direction in which at least two of the sensor portions of the film portion having the plurality of sensor portions and the bent portions are different from each other , the pressure sensitive sensor being disposed on the object to be disposed on the placement surface. Facing the arrangement The Rukoto the bent portion is bent such that the positional relationship which is disposed above the gist.

  With the above configuration, the same effect as that of the first aspect is achieved.

  According to the present invention, it is possible to suppress damage to the film portion without increasing the number of parts of the pressure-sensitive sensor.

(First embodiment)
1st Embodiment which is one embodiment which actualized this invention is described in detail according to FIGS. 1-4.

<Overview of the first embodiment>
As shown in FIG. 1, the pressure-sensitive sensor 1 includes a film portion 2 that extends on the same plane (XZ plane described later) and includes a plurality of sensor portions 3, and a connector that is connected to one end of the film portion 2. 4 (external connection part). As shown in FIG. 2, the vehicle seat 10 </ b> A (pressure-sensitive sensor arrangement body) includes the pressure sensor 1 and a cushion pad 11 (object to be arranged) on which the pressure sensor 1 is arranged. Yes. The cushion pad 11 has an insertion hole 13 recessed in a direction perpendicular to the upper surface 12 (arrangement surface). Here, the “perpendicular direction” does not necessarily include a direction intersecting perpendicularly, that is, a direction intersecting at 90 degrees, but also a direction intersecting with a certain width around 90 degrees (the same applies hereinafter). In reality, the upper surface 12 of the cushion pad 11 is not a perfect plane, and even if the upper surface 12 is regarded as a perfect plane, it is not always necessary to be recessed in the direction of 90 degrees with respect to the upper surface 12. .

  As shown in FIGS. 2 and 3, the film part 2 further includes an insertion part 21 inserted into the insertion hole 13 and a detection part 22 having the sensor part 3. The end portion of the insertion portion 21 and the end portion of the detection portion 22 are connected by a bent portion 23.

<Structure and production method of sensor unit 3 and film unit 2>
As shown in FIG. 4, the film portion 2 has a configuration in which a pair of films 31 are spaced apart from each other via an insulating spacer 30. On one surface of the film 31, one conductive line 32 and a circular electrode 33 that is spaced apart from each other are formed on the conductive line 32. In addition, similar conductive lines 32 and electrodes 33 are formed on the opposite surface of the other film 31. Each conductive wire 32 is divided and extends around an air passage 30 b formed in the insulating spacer 30. A connector 4 is connected to one end of the film portion 2 in order to connect each conductive wire 32 to the outside. Here, the film 31 and the electrode 33 constitute the sensor unit 3 provided in the film unit 2. Since the insulating spacer 30 in the sensor unit 3 is provided with the through hole 30a, the plurality of opposed electrodes 33 face each other through the through hole 30a in a non-contact state.

  The conductive wire 32 and the electrode 33 are formed by printing carbon or copper powder. Thus, the film part 2 is formed by punching out what integrated each film sheet on which the conductive wire 32 and the electrode 33 are printed and the insulating spacer 30 with an adhesive into a predetermined shape. That is, a plurality of film portions 2 are punched from the pair of film sheets.

  With such a structure, when the occupant's weight acts on the sensor unit 3, the pressure-sensitive sensor 1 detects the occupant's seating by contacting each conductive wire 32 in the through hole 30a and energizing. Then, the output result is output to the outside through the connector 4 connected to one end of the film part 2.

<Structure of Pressure Sensor 1 and Cushion Pad 11>
As shown in FIG. 1, it is assumed that the film portion 2 extends on the XZ plane formed by the X direction and the Z direction orthogonal to the X direction and extends in the Z direction. One end side (−Z direction end side) of the film portion 2 is connected to the connector 4, and the other end side (+ Z direction end side) is bifurcated and has a sensor portion 3 at each end thereof. . And it forms in reverse h shape as a whole. More specifically, the film part 2 has a straight part 2a extending linearly in the Z direction from the connector 4 to the sensor part 3 with a constant width with respect to the X direction, and a bent part 2b connected to the straight part 2a. The bent portion 2b extends in the X direction from the straight portion 2a, and extends in the Z direction with the same width as that of the straight portion 2a from its end. The other end side (+ Z direction end side) of the straight part 2a and the bent part 2b has the same shape, and each has a sensor portion 3 at the tip. The lengths in the Z direction from the bifurcated portion to the other end side (+ Z direction end side) of the straight portion 2a and the bent portion 2b (hereinafter, the bifurcated range) are the same. And when arrange | positioning in the vehicle seat 10A mentioned later, a bending position exists in the forked range. Here, if the direction orthogonal to the XZ plane is the Y direction, the width of the film part 2 in the Y direction is very thin, and the width of the connector 4 in the Y direction is about the same as the width of the connector 4 in the X direction. It is.

  It is assumed that the pressure-sensitive sensor 1 of the first embodiment is disposed in a vehicle seat 10A that is a one-seat specification. As shown in FIGS. 2 and 3, the cushion pad 11 of the vehicle seat 10 </ b> A includes an insertion hole 13 in the upper surface 12 for inserting the insertion portion 21 of the film portion 2. Here, assuming that the vehicle longitudinal direction is the X direction, the vehicle width direction is the Y direction, the vehicle vertical direction is the Z direction, and the center line O in the X direction of the cushion pad 11 is assumed, the insertion hole 13 is on the center line O. Located on the vehicle rear side (+ X direction). In addition, as shown in FIG. 3, the upper surface 12 of the cushion pad 11 is actually inclined rather than a plane, but here the upper surface 12 is regarded as a plane parallel to the XY plane.

  The width of the insertion hole 13 in the Y direction is slightly larger than the thickness of the film part 2 in the Y direction. And the width | variety of the X direction of the insertion hole 13 is a little larger than the maximum width of the X direction of the film part 2 in FIG. Here, the insertion hole 13 does not penetrate the cushion pad 11 but has a bottom portion 13a.

  Furthermore, the insertion hole 13 has a connector insertion hole 14 into which the connector 4 is inserted. The connector insertion hole 14 has a width in the X direction and a width in the Y direction that are slightly larger than the width of the connector 4 in the X direction and the Y direction, respectively. As described above, the rectangular connector insertion hole 14 on the upper surface 12 penetrates the cushion pad 11 in a direction orthogonal to the upper surface 12 (Z direction), that is, communicates with a part of the bottom portion 13 a of the insertion hole 13. The connector 4 can be inserted.

<Pressure sensor 1 arrangement>
As shown in FIGS. 2 and 3, a part of the film portion 2 is inserted into the insertion hole 13, and a portion extending from the insertion hole 13 of the film portion is perpendicular to the insertion hole 13 (± Y direction). The pressure sensor 1 is disposed on the cushion pad 11 so that the sensor unit 3 is positioned on the upper surface 12. Hereinafter, the arrangement method will be described in detail.

  The pressure-sensitive sensor 1 is inserted into the insertion hole 13 on the upper surface 12 of the cushion pad 11 from the connector 4 side. As shown in FIG. 3, the connector 4 has the connector insertion hole 14 up to the insertion end 21 a (−Z direction end portion) of the bent portion 2 b, that is, the position where the insertion end 21 a of the insertion portion 21 contacts the bottom portion 13 a of the insertion hole 13. Inserted into. The bending position is determined by the contact of the two, and the straight part 2a and the bent part 2b of the film part 2 are bent in different directions (± Y directions) around the center line O so as to be positioned on the upper surface 12. It is done. Therefore, the bent portion 23 is formed on the center line O. One sensor unit 3 is located on each side of the center line O. As described above, the film portion 2 of the pressure-sensitive sensor 1 arranged on the cushion pad 11 is connected to the insertion portion 21 inserted into the insertion hole 13 and the end portion of the insertion portion 21, and the insertion portion is inserted from the end portion. A bending portion 23 that bends in a direction orthogonal to the direction 21 (± Y direction), and a detection portion 22 that is connected to the end of the bending portion 23 and is located on the upper surface 12 and includes the sensor portion 3. Further, the detection part 22 has a fixed adhesive part 22a as shown in FIG. 1 and is stuck to the cushion pad 11, and the bent part 23 is inserted into the insertion hole 13 of the cushion pad 11 as shown in FIG. Located in.

<Operational effects obtained in this embodiment>
With the above configuration, the following operational effects can be achieved.

  (1) When the pressure sensitive sensor 1 is disposed, the film part 2 is bent in a direction (± Y direction) orthogonal to the insertion part 21. For this reason, the bending stress which acts on the bending part 23 is suppressed compared with the case where the film part 2 is folded 180 degree | times conventionally. Therefore, it is not necessary to regulate the minimum bending radius of the bent portion 23 by using a spacer or the like when the film portion 2 is bent as in the prior art, and the breakage of the film portion 2 is suppressed without increasing the number of parts. Can do.

  (2) Since the detection unit 22 is arranged on the upper surface 12 of the cushion pad 11 in different directions (± Y directions), one sensor unit 3 is positioned on each side of the center line O. become. Therefore, the detection range of the pressure sensor 1 with respect to the vehicle width direction (Y direction) can be expanded.

  (3) Since the insertion hole 13 has the bottom portion 13a, the bending position is determined based on the position where the insertion end 21a of the insertion portion 21 is in contact with the bottom portion 13a of the insertion hole 13, and the pressure-sensitive sensor 1 is used as the cushion pad 11. Can be arranged. As a result, when the pressure sensor 1 is disposed on the cushion pad 11, the pressure sensor 1 can be easily positioned.

  (4) Since the insertion hole 13 has a connector insertion hole 14 penetrating the cushion pad 11 in the direction orthogonal to the upper surface 12 (Z direction) in front of it, the connector 4 is accommodated inside the cushion pad 11. It becomes possible. Therefore, the connector 4 can be disposed below the vehicle seat 10A (in the −Z direction) without being disposed below the vehicle seat 10A along the cushion pad 11 from the rear of the cushion pad 11, and the assembly of the pressure sensor 1 is facilitated. .

  (5) When the pressure sensor 1 is disposed, the film part 2 is bent in a direction (± Y direction) orthogonal to the insertion part 21, and the bending part 23 is located in the insertion hole 13. For this reason, unlike the conventional case where the film part 2 is folded back 180 degrees, the bent part is not thickened and is not positioned on the upper surface 12 of the cushion pad 11. Therefore, the occupant sitting on the vehicle seat 10A does not feel uncomfortable, and the occupant's sitting comfort can be improved.

(Second Embodiment)
Next, a second embodiment of the present invention will be described in detail with reference to FIGS.

  In addition, in this embodiment, about the member which is common in the said 1st Embodiment, the same code | symbol is attached | subjected and the detailed description is abbreviate | omitted.

<Structure of Pressure Sensor 1 and Cushion Pad 11>
As shown in FIG. 5, it is assumed that the film portion 2 extends on the XY plane formed by the X direction and the Y direction orthogonal to the X direction and extends in the Y direction. The film part 2 has a center part 2A extending in the X direction and an extension part 2B extending symmetrically about the center line P of the center part 2A and extending in the Y direction. And as a whole, it is formed in an inverted T shape. More specifically, the extending portion 2B has a straight portion 2c extending in a straight line in the Y direction from the connector 4 to the sensor portion 3 with a constant width in the X direction, and a bent portion 2d connected to the straight portion 2c. . The bent portion 2d extends in the X direction from the tip of the straight portion 2c, and extends in the Y direction from the end toward the center portion 2A with the same width as the straight portion 2c. The straight part 2c has two sensor parts 3 near the center thereof, and each bent part 2d has two sensor parts 3 near the tip. And when arrange | positioning in the vehicle seat 10B (pressure sensor arrangement | positioning body) mentioned later, the bending position exists in the bifurcated range where the linear part 2c and the bending part 2d are bifurcated. Here, if the direction orthogonal to the XY plane is the Z direction, the width of the film part 2 in the Z direction is very thin as in the first embodiment.

  It is assumed that the pressure-sensitive sensor 1 of the second embodiment is disposed on a vehicle seat 10B having a three-seat specification such as a second seat or a third seat. As shown in FIGS. 6 and 7, the cushion pad 11 of the vehicle seat 10 </ b> B includes an insertion hole 13 in the upper surface 12 for inserting the insertion portion 21 of the film portion 2. Here, as in the first embodiment, it is assumed that the vehicle longitudinal direction is the X direction, the vehicle width direction is the Y direction, and the vehicle vertical direction is the Z direction. Further, assuming that the center line P in the X direction of the cushion pad 11 and the dividing lines in the X direction that divide the cushion pad 11 into three equal parts are Q1 and Q2, respectively, the insertion hole 13 is located on the dividing lines Q1 and Q2. Located on the vehicle rear side.

  As in the first embodiment, each width of the insertion hole 13 is slightly larger than each thickness of the film portion 2, and the insertion hole 13 has a bottom portion 13 a. The cushion pad 11 has a connector insertion hole 14 on the center line P. The connector insertion hole 14 is formed slightly larger than the connector 4 as in the first embodiment. The connector insertion hole 14 penetrates the cushion pad 11 obliquely forward and downward with respect to the upper surface 12 so that the connector 4 can be inserted.

<Pressure sensor 1 arrangement>
As shown in FIGS. 6 and 7, in the pressure sensor 1, the connector 4 is inserted into the connector insertion hole 14 in the upper surface 12 of the cushion pad 11. The film portion 2 is inserted until the end of the extending portion 2B, that is, the position where the insertion end 21a of the insertion portion 21 contacts the bottom portion 13a of the insertion hole 13, so that the bending position is determined. The straight portion 2c and the bent portion 2d are bent in different directions (± Y directions) around the dividing lines Q1 and Q2 so as to be positioned on the upper surface 12. Therefore, bent portions 23 are formed on the dividing lines Q1 and Q2, respectively. And the center of a pair of sensor part 3 provided in the straight part 2c and each bending part 2d is located in the vicinity of the dividing lines P1, P, and P2 which divide the cushion pad 11 into four equally. As described above, the film portion 2 of the pressure-sensitive sensor 1 arranged on the cushion pad 11 is connected to the insertion portion 21 inserted into the insertion hole 13 and the end portion of the insertion portion 21, and the insertion portion is inserted from the end portion. A bending portion 23 that bends in a direction orthogonal to the direction 21 (± Y direction), and a detection portion 22 that is connected to the end of the bending portion 23 and is located on the upper surface 12 and includes the sensor portion 3. Although not shown in the drawings, the detection unit 22 has a fixed adhesive portion as in the first embodiment, and is fixed to the cushion pad 11.

<Operational effects obtained in this embodiment>
Therefore, according to the present embodiment, in addition to the operational effects equivalent to the operational effects described in (1) to (3) and (5) in the first embodiment, the following operational effects can be achieved. .

  (6) Since the cushion pad 11 has the connector insertion hole 14 that obliquely penetrates forward and downward with respect to the upper surface 12 on the center line P, the connector 4 can be stored inside the cushion pad 11. Therefore, the connector 4 can be disposed below the vehicle seat 10B from the rear of the cushion pad 11 along the cushion pad 11 without being disposed below the vehicle seat 10B, and the pressure-sensitive sensor 1 can be easily assembled.

(Modifications in the first and second embodiments)
In addition, this invention is not limited to the said embodiment, You may change into the aspect shown below.

<Modification Example in First Embodiment>
In the first embodiment, the insertion hole 13 is located on the vehicle rear (+ X direction) side on the center line O, and the insertion hole 13 has the connector insertion hole 14 in front of it. As shown in FIGS. 8 to 10, the position or size of the insertion hole 13 or the connector insertion hole 14 may be changed. The detection unit 22 is arranged on the upper surface 12 of the cushion pad 11 in different directions (± Y directions), and the sensor unit 3 is located on each side of the center line O. However, for example, as illustrated in FIGS. 8 to 10, the detection unit 22 may be disposed in the same direction, or may be two or more. One or more sensor units 3 may be arranged in the vehicle width direction with respect to the center line O, or the sensor unit 3 may be arranged only on one side with respect to the center line O. Here, as an example, FIGS. 8 to 10 will be described in detail.

  In the case of FIG. 8, the position of the insertion hole 13 is moved in the vehicle width direction (+ Y direction), and the position of the connector insertion hole 14 is moved rearward (+ X direction). The pressure-sensitive sensor 1 has two sensor units 3 in each detection unit 22, and the sensor units 3 of the detection unit 22 are arranged symmetrically about the central axis O. Moreover, the detection part 22 is arrange | positioned facing the direction (-Y direction) opposite to the same direction, ie, the direction (+ Y direction) to which the insertion hole 13 moved.

  In the case of FIG. 9, the width of the insertion hole 13 in the vehicle front-rear direction (X direction) is increased, and the position of the connector insertion hole 14 is moved to the center of the insertion hole 13. Two of the three detectors 22 are arranged in the same direction (−Y direction).

  In the case of FIG. 10, the angle of the insertion hole 13 is rotated by 90 degrees, and each detection unit 22 is arranged facing the same direction (−X direction).

  According to the first modification, it is possible to obtain operational effects equivalent to the operational effects described in (1) to (5) in the first embodiment.

In the first embodiment, the insertion hole 13 has the bottom 13a. However, the insertion hole 13 may penetrate the cushion pad 11 without having the bottom 13a. With the above configuration, the following operational effects can be obtained in addition to the operational effects equivalent to the operational effects described in (1), (2), (4), and (5).

  (7) Since the insertion hole 13 penetrates the cushion pad 11, the pressure-sensitive sensor 1 can be arranged not only from above (+ Z direction) but also from below (−Z direction). Therefore, the degree of freedom of assembly of the pressure sensitive sensor 1 is improved.

<Modification Example in Second Embodiment>
In the second embodiment, the insertion hole 13 has the bottom 13a. However, the insertion hole 13 may penetrate the cushion pad 11 without having the bottom 13a.

  In the second embodiment, the center portion 2A having the connector 4 at the tip extends in the X direction on the center line P, and at the same time, the connector insertion hole 14 is positioned on the center line P of the cushion pad 11. However, for example, as shown in FIG. 11, the central portion 2A, the connector insertion hole 14 and the insertion hole 13 are moved in the vehicle width direction (+ Y direction), and the length of each bent portion 2b in the vehicle width direction (Y direction) is increased. It may be different. Here, the position of each sensor unit 3 after being disposed on the cushion pad 11 is the same as in the second embodiment. Of course, the direction in which the center portion 2A, the connector insertion hole 14, and the insertion hole 13 are moved may be not the vehicle width direction (+ Y direction) but the vehicle width direction (−Y direction).

  In the second embodiment, there are three detection units 22. However, for example, there may be three or more detection units 22 as shown in FIG.

  In the second embodiment, the center of the sensor unit 3 is set to be located in the vicinity of the dividing lines P1, P, and P2 that divide the cushion pad 11 into four equal parts, and the insertion hole 13 substantially omits the cushion pad 11. It is assumed that the vehicle is located on the vehicle rear side on the dividing lines Q1 and Q2 in the X direction that are divided into three equal parts. However, only an ideal arrangement is shown, and the arrangement is not necessarily limited to this.

  In the first and second embodiments, the pressure sensitive sensor 1 is disposed on the vehicle seats 10A and 10B, but may be disposed on a bed or the like, for example.

The top view which shows the state before arrangement | positioning of the pressure sensor in 1st Embodiment which is an example of this invention. FIG. 2 is a top view of a vehicle seat in a state where the pressure-sensitive sensor of FIG. 1 is disposed on the vehicle seat. Sectional drawing in the AA of a pressure sensor and a vehicle seat of FIG. FIG. 2 is an exploded perspective view of the pressure sensor of FIG. 1. The top view which shows the state before arrangement | positioning of the pressure sensor in 2nd Embodiment which is an example of this invention. FIG. 6 is a top view of a vehicle seat in a state where the pressure-sensitive sensor of FIG. 5 is disposed on the vehicle seat. Sectional drawing in the BB line of the pressure sensitive sensor of FIG. 6, and a vehicle seat. The schematic diagram of the example of a change of 1st Embodiment. The schematic diagram of the example of a change of 1st Embodiment. The schematic diagram of the example of a change of 1st Embodiment. The schematic diagram of the example of a change of 2nd Embodiment. The schematic diagram of the example of a change of 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pressure sensor 2 Film part 3 Sensor part 4 Connector (external connection part)
11 Cushion pads (arranged objects)
12 Top surface (arrangement)
13 Insertion hole 21 Insertion part 22 Detection part 23 Bending part 32 Conductive wire (band conductor)

Claims (6)

A film part comprising a sensor part for detecting pressure by conducting at least two strip-shaped conductors of a plurality of strip-shaped conductors when pressed;
In the pressure-sensitive sensor provided with an external coupling portion that connects the strip-shaped conductor to the outside, and disposed on the surface of the object to be disposed,
The film part is further inserted into an insertion hole provided in a direction perpendicular to the arrangement surface on the arrangement surface;
A bent portion connected to the end of the insertion portion and bent in a direction perpendicular to the insertion portion from the end;
A detector connected to an end of the bent portion, located on the arrangement surface, and having the sensor portion ;
The film part has a plurality of the detection part and the bending part, and at least two of the detection parts are oriented in different directions so as to be arranged on the arrangement surface. pressure-sensitive sensor bent portion is characterized that you have bent. A pressure-sensitive sensor according to claim 1;
An object having an arrangement surface on which the pressure sensor is arranged;
The object to be arranged has an insertion hole provided on the arrangement surface in a direction orthogonal to the arrangement surface. The pressure-sensitive sensor arrangement according to claim 2, wherein the insertion hole of the object to be arranged has a bottom portion with which an insertion end of the insertion portion of the pressure sensor abuts. The pressure-sensitive sensor arrangement body according to claim 2 or 3, wherein the insertion hole has a through-hole through which the external connection portion can be inserted and penetrates the object to be arranged. 4. The object according to claim 2 or 3, wherein the object to be disposed has a through-hole through which the external connection part can be inserted at a place different from the insertion hole and through the object to be disposed. The pressure-sensitive sensor arrangement body according to the description. A pressure-sensitive sensor comprising a film part having a sensor part for detecting pressurization by conducting at least two strip-shaped conductors of a plurality of strip-shaped conductors when pressed, and an external coupling part for connecting the strip-shaped conductors to the outside. In the method of disposing the pressure sensitive sensor disposed on the disposition surface of the object to be disposed,
A part of the film portion is inserted into an insertion hole provided in a direction orthogonal to the arrangement surface on the arrangement surface, and a portion extending from the insertion hole of the film portion is defined as the insertion hole. Forming a bent portion that is bent in a direction orthogonal to the pressure sensor, and disposing the pressure-sensitive sensor on the object to be disposed so that the sensor portion is positioned on the disposition surface,
The bent portion is bent such that at least two of the sensor portions of the film portion having the sensor portion and the bent portion are arranged on the arrangement surface in different directions. An arrangement method of a pressure-sensitive sensor characterized in that

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