WO2010137464A1 - 着座センサ - Google Patents
着座センサ Download PDFInfo
- Publication number
- WO2010137464A1 WO2010137464A1 PCT/JP2010/058090 JP2010058090W WO2010137464A1 WO 2010137464 A1 WO2010137464 A1 WO 2010137464A1 JP 2010058090 W JP2010058090 W JP 2010058090W WO 2010137464 A1 WO2010137464 A1 WO 2010137464A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- insulating sheet
- electrode
- switches
- seating
- sensor
- Prior art date
Links
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
- H01H3/141—Cushion or mat switches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
- B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
- B60N2/003—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement characterised by the sensor mounting location in or on the seat
- B60N2/0033—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement characterised by the sensor mounting location in or on the seat mounted on or in the foam cushion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01516—Passenger detection systems using force or pressure sensing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
- H01H13/18—Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
- B60N2210/40—Force or pressure sensors
- B60N2210/46—Electric switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
- H01H3/141—Cushion or mat switches
- H01H2003/147—Special aspects regarding the peripheral edges of the mat switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2231/00—Applications
- H01H2231/026—Car
Definitions
- the present invention relates to a seating sensor.
- an alarm system that detects the wearing of a seat belt when the occupant gets on and issues a warning when the seat belt is not worn has been put into practical use.
- a seating of an occupant is detected, and a warning is issued when the seat belt is not worn when the occupant is seated.
- a seating sensor that is disposed on a cushion pad under the epidermis in the seating portion of the seat and detects a load caused by the seating of the occupant may be used.
- Patent Document 1 describes such a seating sensor.
- the seating sensor described in Patent Document 1 below includes a plurality of on / off type pressure sensors and a pair of sensor units having wirings connected to the respective pressure sensors, and a connector and a pair of sensor units. And a connector portion having wiring connected to a pair of sensor portions at one end and connected to a connector at the other end.
- the pair of sensor portions and the connector portion are respectively formed and integrated on a film-like base.
- the connector portion in the connector portion, the connector is disposed between the plurality of pressure sensors, and the wiring connected to the connector is between the pressure sensors. It extends to the position away from. Furthermore, in the sensor unit, the wiring connected to the pressure sensor extends to a position away from the pressure sensor. And the wiring connected to a connector and the wiring connected to a pressure sensor are connected in the position away from the pressure sensor. As described above, since the wiring extends to a position away from the pressure-sensitive sensor and the connector, the seating sensor tends to increase in size, and there is a concern that the material cost is increased, and there is a case where it cannot be manufactured at low cost.
- an object of the present invention is to provide a seating sensor that can be manufactured at low cost.
- the seating sensor of the present invention is a seating sensor that is disposed inside a seat and detects a seating of a person, and includes a film-like base, three or more switches that are turned on by a pressing force caused by the seating of the person, A sensor unit that is connected to the switch and has a first conductor disposed in a minimum rectangular area including each of the switches, a terminal, and a second conductor that connects the terminal and the first conductor
- the base comprises a first part in which the sensor part is provided and a second part in which the connector part is provided, and the second part comprises the first part. It is characterized by being arranged in the smallest rectangular area including it.
- the first conductor connected to each of the three or more switches is arranged in the smallest rectangular area including the respective switches.
- the sensor unit is reduced in size.
- the second part of the base on which the terminal and the second conductor are provided is arranged in the smallest rectangular region including the first part of the base on which the sensor unit to be miniaturized is provided as described above.
- a seating sensor is accommodated in the minimum rectangular area
- material cost can be reduced and it can manufacture at low cost.
- each of the first switch group and the second switch group constitutes an OR circuit
- the first switch group and the second switch group constitute an AND circuit
- each of the first switch group and the second switch group includes an OR circuit, at least one switch in the first switch group and at least one switch in the second switch group are turned on. Since the seating of the occupant can be detected, the seating of the occupant can be detected with high accuracy.
- a seating sensor that is small and can be manufactured at low cost is provided.
- FIG. 5 is a cross-sectional view showing a state of a cross section taken along line VV in FIG. 1.
- FIG. 1 is a plan view showing a seating sensor according to the first embodiment of the present invention.
- the seating sensor 100 includes a first electrode sheet 10, a second electrode sheet 20 stacked on the first electrode sheet 10, and a spacer sandwiched between the first electrode sheet 10 and the second electrode sheet 20. As main components.
- FIG. 2 is a plan view showing the first electrode sheet 10 shown in FIG.
- the first electrode sheet 10 includes a flexible film-like first insulating sheet 15 as a base, and first electrodes 14A to 14D formed on the surface of the first insulating sheet 15. And terminals 42A and 42B formed on the surface of the first insulating sheet 15 as main components.
- the first insulating sheet 15 includes a first portion 11 and a second portion 12.
- the first portion 11 has the same shape, and is perpendicular to the side portions 11A and 11B between a pair of parallel side portions 11A and 11B and the side portions 11A and 11B. And a belt-like intermediate portion 11C connected to the intermediate portions of the side portions 11A and 11B.
- the 1st part 11 is made into the substantially H shape enclosed by the broken line 11L.
- the second portion 12 has a belt-like shape and extends in a direction perpendicular to the intermediate portion 11C of the first portion, and has one end connected to the intermediate portion of the intermediate portion 11C and the other end being a free end. Has been. For this reason, the second portion 12 and the intermediate portion 11C are substantially T-shaped. In FIG. 2, the second portion 12 is surrounded by a broken line 12L.
- the edge of the free end side of the 2nd part 12 is located on the line
- the first electrodes 14A to 14D have a substantially circular shape, and the first electrodes 14A to 14D are provided on the first portion 11.
- the first electrodes 14 ⁇ / b> A and 14 ⁇ / b> B are respectively provided on the surface of the side portion 11 ⁇ / b> A at a predetermined interval from the edges of both ends of the side portion 11 ⁇ / b> A of the first portion 11.
- the first electrode 14A and the first electrode 14B are connected to a linear first conductor 16A provided between the first electrode 14A and the first electrode 14B on the surface of the side portion 11A.
- the first conductor 16C branches off from the middle of the first conductor 16A, and the first conductor 16C extends on the intermediate portion 11C.
- the first electrodes 14C and 14D are provided on the surface of the side portion 11B at a predetermined interval from the edges of both ends of the side portion 11B of the first portion 11. Furthermore, the first electrode 14C and the first electrode 14D are connected to a linear first conductor 16B provided between the first electrode 14C and the first electrode 14D on the surface of the side portion 11B. The first conductor 16D branches from the middle of the first conductor 16B, and the first conductor 16D extends on the intermediate portion 11C.
- the linear first conductor 16A is provided between the first electrode 14A and the first electrode 14B, and the linear first conductor 16B is provided between the first electrode 14C and the first electrode 14D. Furthermore, the first conductor 16C and the first conductor 16D extend from the first conductor 16A and the first conductor 16B to the intermediate portion 11C side, respectively. For this reason, the first conductors 16A to 16D are disposed in the smallest rectangular area S2 including the first electrodes 14A to 14D.
- the terminals 42A and 42B have a substantially rectangular shape, and the terminals 42A and 42B are arranged in a longitudinal direction of the second portion 12 at a predetermined distance from the edge on the free end side on the surface of the second portion 12. They are juxtaposed along a direction perpendicular to the direction. Further, the terminal 42A is connected to the second conductor 17A provided on the surface of the second portion 12, and the terminal 42B is connected to the second conductor 17B provided on the surface of the second portion. These second conductors 17 ⁇ / b> A and 17 ⁇ / b> B extend in parallel to each other along the longitudinal direction of the first portion 12. The second conductor 17A is connected to the first conductor 16C at the intermediate portion 11C, and the second conductor 17B is connected to the first conductor 16D at the intermediate portion 11C.
- FIG. 3 is a plan view showing the second electrode sheet shown in FIG.
- the second electrode sheet includes a flexible film-like second insulating sheet 25 and second electrodes 24A to 24D formed on the surface of the second insulating sheet 25 as main components. Have as.
- the second insulating sheet 25 includes a first portion 21 and a second portion 22.
- the first portion 21 of the second insulating sheet 25 has the same shape and extends in the vertical direction with respect to the pair of strip-shaped side portions 21A and 21B parallel to each other and the side portions 21A and 21B. It is composed of a belt-like intermediate portion 21C connected to the intermediate portions of the side portions 21A and 21B between the portion portions 21A and 21B.
- the first portion 21 of the second insulating sheet 25 has the same shape as the first portion 11 of the first insulating sheet 15. Accordingly, the first portion 21 has a substantially H shape surrounded by a broken line 21L.
- the second portion 22 of the second insulating sheet 25 has a strip-like shape that is the same in width and short in length as the second portion 12 of the first insulating sheet 15 and extends in a direction perpendicular to the intermediate portion 21C. At the same time, one end of the intermediate portion 21C is vertically connected and the other end is a free end.
- the length of the second portion 22 of the second insulating sheet 25 is such that the second electrode sheet 20 and the first electrode sheet 10 are stacked with their positions aligned. The length is such that the terminals 42A and 42B of the sheet 10 are exposed.
- the second portion 22 is surrounded by a broken line 22L.
- the second electrodes 24A to 24D have the same shape and size as the first electrodes 14A to 14D. Further, the second electrodes 24A to 24D are arranged such that when the second insulating sheet 25 is overlapped with the first electrode sheet 10, the first electrodes 14A to 14D on the surface of the second insulating sheet 25 on the first electrode sheet 10 side They are provided at overlapping positions.
- the second electrode 24A and the second electrode 24B are connected to a linear first conductor 26A provided between the second electrode 24A and the second electrode 24B on the surface of the second insulating sheet 25.
- the second electrode 24C and the second electrode 24D are connected to a linear first conductor 26B provided between the second electrode 24C and the second electrode 24D on the surface of the second insulating sheet 25.
- the first conductor 26 ⁇ / b> A and the first conductor 26 ⁇ / b> B are connected to the first conductor 27 formed on the surface of the intermediate portion 21 ⁇ / b> C of the second insulating sheet 25.
- the linear first conductor 26A is provided between the second electrodes 24A and 24B
- the linear first conductor 26B is provided between the second electrodes 24A and 24B
- the first conductor 27 Is connected to the first conductor 26A and the first conductor 26B. Therefore, when the second insulating sheet 25 is overlapped with the first electrode sheet 10 and the second insulating sheet 25 is viewed from a direction perpendicular to the second insulating sheet 25, each of the first electrodes 14A to 14D is It is arranged in the smallest rectangular area S2 that contains it.
- FIG. 4 is a plan view showing a spacer sandwiched between the first electrode sheet 10 and the second electrode sheet 20.
- the spacer 30 is made of a flexible insulating sheet. As shown in FIG. 4, the spacer 30 has the same outer shape as the second electrode sheet 20.
- openings 34A to 34D are formed in the spacer 30.
- the openings 34A to 34D have a substantially circular periphery, and have a diameter larger than that of the first electrodes 14A to 14D.
- the openings 34A to 34D overlap with the first electrode sheet 10, and when the spacer 30 is viewed along the direction perpendicular to the spacer 30, the first electrodes 14A to 14D are open to the openings 34A to 34D. It is formed in the position which is arrange
- the openings 34A to 34D are connected to an air vent slit 35.
- the slit 35 is connected to the outside of the spacer 30 by a gas outlet 35A.
- an adhesive (not shown) for bonding the first electrode sheet 10 and the second electrode sheet 20 is applied to both surfaces of the spacer 30.
- FIG. 5 is a cross-sectional view showing a cross section taken along line VV shown in FIG. 1
- FIG. 6 is a circuit diagram showing an equivalent circuit of the circuit configuration of the seating sensor 100 shown in FIG. 7 is a diagram illustrating a state in which the seating sensor 100 illustrated in FIG. 1 is disposed in the seat.
- the first electrode sheet 10 and the second electrode sheet 20 are stacked with the spacer 30 interposed therebetween, and are fixed to each other by an adhesive applied to both surfaces of the spacer 30 and integrated. Has been.
- the first electrodes 14A to 14D of the first electrode sheet 10 and the second electrodes 24A to 24D of the second electrode sheet 20 are completely when the seating sensor 100 is viewed from a direction perpendicular to the seating sensor 100.
- the switches 40A to 40D are configured to overlap. Therefore, the minimum rectangular area including the switches 40A to 40D is the same area as the minimum rectangular area S2 including the first electrodes 14A to 14D. Therefore, the first conductor provided on the first insulating sheet 15 and the second insulating sheet 25 is disposed in the smallest rectangular area S2 including the switches 40A to 40D.
- each of the switches 40A to 40D configured as described above detects a pressing force.
- the first electrode 14 ⁇ / b> A of the first electrode sheet 10 and the second electrode 24 ⁇ / b> A of the second electrode sheet 20 have the spacer 30 when the seating sensor 100 is viewed from a direction perpendicular to the seating sensor 100 as described above. It is arranged inside the opening 34A provided in the. Then, the first electrode 14A and the second electrode 24A are opposed to each other with a predetermined interval by a spacer 30 as shown in FIG.
- a switch 40 ⁇ / b> A composed of the first electrode 14 ⁇ / b> A and the second electrode 24 ⁇ / b> A is configured.
- the insulating sheet 15 provided with the first electrode 14A and the insulating sheet 25 provided with the second electrode 24A are flexible film-like sheets. Therefore, when the second insulating sheet 25 is more flexible than the first insulating sheet 15, when the pressing force F is applied from a direction perpendicular to both surfaces of the seating sensor 100, the second insulating sheet 25 is bent and the second insulating sheet 25 is bent. The two electrodes 24A are in contact with the first electrode 14A. On the other hand, when the first insulating sheet 15 is more flexible than the second insulating sheet 25, when the pressing force F is applied from a direction perpendicular to both surfaces of the seating sensor 100, the first insulating sheet 15 is bent and the first insulating sheet 15 is bent.
- One electrode 14A contacts the second electrode 24A.
- the switch 40A is turned on when the first electrode 14A and the second electrode 24A come into contact with each other.
- the air in the opening 34A is discharged from the slit 35 shown in FIG. 4, so the second insulating sheet 25 or the first insulating sheet 15 is When the pressing force F is applied, it can bend appropriately.
- the switches 40A to 40D configured as described above include the first conductors 16A and 16B formed on the surface of the first portion 11 of the first insulating sheet 15 and the second insulating sheet 25.
- the first portions 21 are connected to each other by first conductors 26A, 26B, and 27 formed on the surface of the first portion 21.
- the switch 40A and the switch 40B of the sensor unit 1 provided in this way and at least one of the switch 40C and the switch 40D are turned on, the terminal 42A and the terminal 42B are electrically connected to each other. Detects seating. That is, in the switch group including the switch 40A and the switch 40B, the switch 40A and the switch 40B constitute an OR circuit. Similarly, in the switch group including the switch 40C and the switch 40D, the switch 40C and the switch 40D constitute an OR circuit. Further, an AND circuit is configured by a switch group including the switches 40A and 40B and a switch group including the switches 40C and 40D.
- the first conductors 16C and 16D connected to the first conductors 16A and 16B of the sensor part are connected to the second conductors 17A and 17B constituting the connector part 2, respectively. Yes.
- such a seating sensor 100 is disposed on the epidermis cushion pad in a seat 200 of a vehicle or the like.
- the switches 40A and 40B are arranged on one side with reference to a line along the direction of the person sitting through the center of the seat 200, and the switches 40C and 40D are arranged on the other side.
- a hole is provided in the cushion pad under the epidermis of the seat 200, and this hole has an elongated shape along a direction perpendicular to the direction of the person sitting on the cushion pad surface.
- the second portion of the first insulating sheet on which the connector portion 2 is provided is bent, and enters the inside of the cushion pad through this hole. Then, the terminals 42A and 42B are electrically connected to an external power source (not shown) and a measurement unit, and a voltage is applied to the terminals 42A and 42B. Thus, a sensing signal sensed by the sensor unit 1 is output to a measurement unit (not shown) to detect the seating of the occupant.
- the insulating sheet 15 of the first electrode sheet 10, the insulating sheet 25 of the second electrode sheet 20, and the spacer 30 are made of a flexible insulating resin.
- a resin include polyethylene terephthalate (PET), polyethylene naphthalate (PEN), and polyimide (PI).
- PET polyethylene terephthalate
- PEN polyethylene naphthalate
- PI polyimide
- PEN is preferable from the viewpoint of heat resistance.
- PET polyethylene terephthalate
- PEN polyethylene naphthalate
- PI polyimide
- inexpensive PET may be used for the first insulating sheet 15.
- PEN may be used for the first insulating sheet 15 and PET may be used for the second insulating sheet 25.
- the adhesive applied to both surfaces of the spacer 30 is preferably an acrylic adhesive, for example, an acrylic polymer using one or more (meth) acrylic acid alkyl esters as monomer components.
- the first electrodes 14A to 14D, the second electrodes 24A to 24D, the first conductors 16A to 16D, 26A, 26B, 27, the second conductors 17A, 17B, and the terminals 42A, 42B are as follows: It is composed of a conductive paste, a metal foil formed by plating, or the like. Among these, a part may be comprised with an electroconductive paste, and another part may be comprised with the metal foil by plating. Examples of the conductive paste include various metal pastes such as silver paste, carbon paste, and the like. Moreover, as metal foil formed by plating, copper, nickel, or these laminated bodies are mentioned.
- the first electrode sheet 10, the second electrode sheet 20, and the spacer 30 before being punched are prepared (preparation step).
- the first electrode sheet 10 is prepared by providing the first electrodes 14A to 14D, the first conductors 16A to 16D, and the second conductor 17A on one surface of the film-like insulating sheet to be the first insulating sheet 15. , 17B and terminals 42A, 42B (hereinafter referred to as a first circuit pattern). At this time, a plurality of first circuit patterns are formed on one insulating sheet.
- the first circuit pattern is composed of a conductive paste such as silver paste
- the conductive paste is applied and dried at a position where the first circuit pattern is formed on the insulating sheet.
- plating is performed on a position where the first circuit pattern is formed on the insulating sheet.
- a plurality of first circuit patterns are formed on the insulating sheet, and the plurality of first electrode sheets 10 in a state before being punched are connected to each other.
- the second electrode sheet 20 is formed on one surface of a film-like insulating sheet to be the second insulating sheet 25, with the second electrodes 24A to 24D and the first conductors 26A, 26B, 27 (hereinafter referred to as the second electrode). Circuit pattern).
- a plurality of second circuit patterns are formed on one insulating sheet in accordance with the first circuit pattern.
- the second circuit pattern may be formed by a method similar to the method for forming the first circuit pattern on the insulating sheet.
- the position of the second circuit pattern is such that the first electrode and the second electrode face each other when the insulating sheet on which the second circuit pattern is formed is overlaid on the insulating sheet on which the first circuit pattern is formed. Has been adjusted.
- the terminals 42A and 42B of the first electrode sheet are formed from the insulating sheet on which the second circuit pattern is formed.
- openings are formed in portions corresponding to the terminals 42A and 42B so as to be exposed.
- the spacer 30 is prepared by applying an adhesive on both sides of the insulating sheet. Thereafter, the openings 34A to 34D and the slit 35 are formed by punching. At this time, a plurality of openings 34A to 34D and slits 35 are formed in one insulating sheet in accordance with the first circuit pattern.
- the prepared first electrode sheet 10 before being die-cut, the spacer 30 and the second electrode sheet 20 are aligned, and the spacer 30 is sandwiched between the first electrode sheet 10 and the second electrode sheet 20.
- FIG. 8 illustrates a state in which an insulating sheet on which a plurality of spacers are formed and an insulating sheet on which a plurality of second circuit patterns are formed are integrated on an insulating sheet on which a plurality of first circuit patterns are formed.
- the second portion of the insulating sheet 15 is disposed in the smallest rectangular area S1 including the first portion of the insulating sheet 15 in which the sensor unit 1 is provided. Therefore, as shown in FIG. 7, the interval between adjacent seating sensors 100 can be minimized, and many seating sensors 100 are formed on a film-like insulating sheet used as the material of the insulating sheet 15.
- each seating sensor 100 is die-cut (die-cutting process).
- the die cutting is performed by a die cutting machine along the outer shape of the seating sensor 100 shown in FIG.
- the first conductors 16A to 16D, 26A, 26B, and 27 connected to the respective switches 40A to 40D are disposed in the smallest rectangular area S2 including the respective switches. .
- the sensor unit 1 is reduced in size.
- the second portion 12 of the first insulating sheet 15 where the terminals 42A and 42B and the second conductors 17A and 17B are provided is the smallest rectangular area including the first portion 11 of the first insulating sheet 15 where the sensor unit 1 is provided. Arranged in S1.
- the seating sensor 100 since the second portion 12 of the first insulating sheet 15 does not extend outward from the smallest rectangular region S1 including the first portion 11, the seating sensor 100 includes the smallest rectangular region S1 including the first portion 11. Housed inside. Therefore, more seating sensors 100 can be formed on the insulating sheet as the material of the first insulating sheet 15 than other seating sensors having the same switch arrangement. Thus, according to the seating sensor 100, the material cost can be reduced and the seating sensor 100 can be manufactured at a low cost.
- the seating sensor 100 is accommodated in the smallest rectangular region S1 including the first portion 11 as described above, the seating sensor 100 can be reduced in size as compared with other seating sensors having the same switch arrangement. Therefore, when the seating sensor 100 is arranged in the seat 200, the degree of freedom of arrangement is improved.
- the AND circuit is configured by the first switch group including the switches 40A and 40B and the second switch group including the switches 40C and 40D. Even if a pressing force is applied only to the switch in one switch group of the second switch group, erroneous detection can be prevented without determining that the passenger is seated.
- the switches 40A and 40B constitute an OR circuit
- the switches 40C and 40D constitute an OR circuit. Therefore, if at least one switch in the first switch group and at least one switch in the second switch group are turned on, the seating of the occupant can be detected. For this reason, the seating of the passenger can be detected with high accuracy.
- FIG. 9 is a plan view showing a seating sensor 110 according to the second embodiment of the present invention.
- the second portion 12 of the first insulating sheet 15 provided with the connector portion 2 is vertically connected to the intermediate portion of the side portion 11 ⁇ / b> B of the first portion 11. This is different from the seating sensor 100 of the first embodiment.
- the second portion 12 of the first insulating sheet 15 provided with the connector portion 2 may be bent around an axis along a direction perpendicular to the longitudinal direction of the second portion 12. it can.
- the width direction of the second portion 12 is parallel to the longitudinal direction of the side portion 11B
- the thickness direction of the second portion 12 is the longitudinal direction of the side portion 11B. It is a vertical relationship.
- the terminals 42A and 42B are connected to the power source and the measurement unit.
- FIG. 10 is a plan view showing a seating sensor 120 according to the third embodiment of the present invention.
- the seating sensor 120 of the present embodiment is different from the seating sensor 110 of the second embodiment in that the switch 40D is not provided.
- an OR circuit is configured by the switch 40A and the switch 40B
- an AND circuit is configured by the switch group including the switch 40A and the switch 40B and the switch 40C.
- the manufacturing cost can be reduced, and the seating sensor can be manufactured at a lower cost.
- the number of switches is four, but the present invention is not limited to this, and the number of switches may be five or more.
- the first electrodes 14A to 14D and the second electrodes 24A to 24D have the same shape and size and are completely overlapped with each other.
- the present invention is not limited to this.
- the first electrode 14A to 14D and the second electrode 24A to 24D may be different in size, shape, and the like as long as the pressing force can be detected.
- a seating sensor that is small and can be manufactured at low cost is provided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Push-Button Switches (AREA)
- Seats For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Description
図1は、本発明の第1実施形態に係る着座センサを示す平面図である。
次に、本発明の第2実施形態について図9を参照して詳細に説明する。なお、第1実施形態と同一又は同等の構成要素については、同一の参照符号を付して重複する説明は省略する。図9は、本発明の第2実施形態に係る着座センサ110を示す平面図である。
次に、本発明の第3実施形態について図10を参照して詳細に説明する。なお、第2実施形態と同一又は同等の構成要素については、同一の参照符号を付して重複する説明は省略する。図10は、本発明の第3実施形態に係る着座センサ120を示す平面図である。
2・・・コネクタ部
10・・・第1電極シート
14A、14B、14C、14D、26A、26B、27・・・第1電極
15・・・第1絶縁シート
16A、16B、16C、16D・・・第1導体
17A、17B・・・第2導体
20・・・第2電極シート
24A、24B、24C、24D・・・第2電極
25・・・第2絶縁シート
30・・・スペーサ
34A、34B、34C、34D・・・開口部
35・・・スリット
40A、40B、40C、40D・・・スイッチ
42A、42B・・・端子
100、110、120・・・着座センサ
200・・・座席
Claims (2)
- 座席内部に配置されて人の着座を検知する着座センサであって、
フィルム状の基台と、
人の着座による押圧力により導通する3つ以上のスイッチと、それぞれの前記スイッチに接続されると共に、それぞれの前記スイッチを含む最小の矩形領域内に配置される第1導体とを有するセンサ部と、
端子と、前記端子と前記第1導体とを接続する第2導体とを有するコネクタ部と、
を備え、
前記基台は、前記センサ部が設けられる第1部分と、前記コネクタ部が設けられる第2部分とから成り、
前記第2部分は、前記第1部分を含む最小の矩形領域内に配置される
ことを特徴とする着座センサ。 - 前記スイッチを4つ以上備え、4つ以上の前記スイッチは、2つ以上の前記スイッチから成る第1スイッチ群と、他の2つ以上の前記スイッチから成る第2スイッチ群とから構成され、前記第1スイッチ群及び前記第2スイッチ群は、それぞれOR回路を構成し、前記第1スイッチ群と前記第2スイッチ群とでAND回路を構成することを特徴とする請求項1に記載の着座センサ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011515971A JP5244970B2 (ja) | 2009-05-29 | 2010-05-13 | 着座センサ |
CN201080017235.1A CN102405505B (zh) | 2009-05-29 | 2010-05-13 | 落座传感器 |
EP10780419.7A EP2437275B1 (en) | 2009-05-29 | 2010-05-13 | Seat occupancy sensor |
US13/306,649 US9018546B2 (en) | 2009-05-29 | 2011-11-29 | Seating sensor with compactly arranged elements |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009-131506 | 2009-05-29 | ||
JP2009131506 | 2009-05-29 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/306,649 Continuation US9018546B2 (en) | 2009-05-29 | 2011-11-29 | Seating sensor with compactly arranged elements |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010137464A1 true WO2010137464A1 (ja) | 2010-12-02 |
Family
ID=43222577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/058090 WO2010137464A1 (ja) | 2009-05-29 | 2010-05-13 | 着座センサ |
Country Status (5)
Country | Link |
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US (1) | US9018546B2 (ja) |
EP (1) | EP2437275B1 (ja) |
JP (1) | JP5244970B2 (ja) |
CN (1) | CN102405505B (ja) |
WO (1) | WO2010137464A1 (ja) |
Cited By (1)
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JP2017001421A (ja) * | 2015-06-04 | 2017-01-05 | アイシン精機株式会社 | 着座検知装置 |
Families Citing this family (8)
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JP5243639B1 (ja) * | 2012-04-06 | 2013-07-24 | 株式会社フジクラ | 座席装置 |
US20140316607A1 (en) * | 2013-04-18 | 2014-10-23 | Ford Global Technologeis, Llc | Occupant presence detection and identification |
JP5604566B1 (ja) * | 2013-07-05 | 2014-10-08 | 株式会社フジクラ | メンブレンスイッチ及び座席装置 |
CN104590183A (zh) * | 2015-01-30 | 2015-05-06 | 无锡桑尼安科技有限公司 | 提高停车状态下的安全性的内部监控系统 |
IT201700006845A1 (it) * | 2017-01-23 | 2018-07-23 | B810 Soc A Responsabilita Limitata | Sensore di pressione |
JP6574213B2 (ja) * | 2017-03-08 | 2019-09-11 | アイシン精機株式会社 | 着座センサ |
TWI653651B (zh) * | 2017-10-27 | 2019-03-11 | 致伸科技股份有限公司 | 鍵盤 |
JP7016950B2 (ja) * | 2018-04-12 | 2022-02-07 | 株式会社フジクラ | 着座センサ |
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Also Published As
Publication number | Publication date |
---|---|
EP2437275A4 (en) | 2014-07-09 |
US20120125698A1 (en) | 2012-05-24 |
EP2437275B1 (en) | 2016-01-06 |
CN102405505A (zh) | 2012-04-04 |
EP2437275A1 (en) | 2012-04-04 |
JP5244970B2 (ja) | 2013-07-24 |
US9018546B2 (en) | 2015-04-28 |
CN102405505B (zh) | 2014-12-24 |
JPWO2010137464A1 (ja) | 2012-11-12 |
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