CN206426877U - Load detecting device - Google Patents

Load detecting device Download PDF

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Publication number
CN206426877U
CN206426877U CN201621390933.7U CN201621390933U CN206426877U CN 206426877 U CN206426877 U CN 206426877U CN 201621390933 U CN201621390933 U CN 201621390933U CN 206426877 U CN206426877 U CN 206426877U
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CN
China
Prior art keywords
detection sensor
electrode
load
load detection
detecting device
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Expired - Fee Related
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CN201621390933.7U
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Chinese (zh)
Inventor
川平哲也
唐沢范之
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Fujikura Ltd
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Fujikura Ltd
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Publication date
Priority claimed from PCT/JP2016/082850 external-priority patent/WO2017163479A1/en
Application filed by Fujikura Ltd filed Critical Fujikura Ltd
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Publication of CN206426877U publication Critical patent/CN206426877U/en
Expired - Fee Related legal-status Critical Current
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Abstract

Load detecting device (1) possesses：Load detection sensor (5)；As the case cover (4) of pressing component, it has the upper surface (47US) as the compression face for receiving the pressing from seat cushion (SC) and is pressed by the upper surface (47US) by seat cushion (SC) and load detection sensor (5) is pressed；And elastic supporting part (64), it is supported from load detection sensor (5) side to case cover (4).

Description

Load detecting device
Technical field
The utility model is related to load detecting device, and it is applied to the situation for the load that detection correspondence is taken one's seat etc. and applied.
Background technology
As one in the security system of vehicle, practical application sends police to situation about not fastening one's safety belt while taking a bus The warning system of announcement.In the warning system, the feelings fastened one's safety belt are not perceived perceiving the state taken one's seat of people Given a warning under condition.As the device that is perceived of taking one's seat to the people, there is the load taken one's seat and applied using detection correspondence Load detecting device.
As such load detecting device, there is the load detecting device being configured under the seat cushion of seat.In seat dress In putting, there is a situation where that seat cushion is configured on seat plate and seat cushion is configured on the multiple S-shaped springs fixed in framework Situation.In the seat unit that seat cushion is configured on multiple S-shaped springs, there is load detecting device and be locked to S-shaped spring Come situation about being used.In following patent documents 1, such load detecting device is recorded.Described in patent document 1 Load detecting device has：It is locked to the pedestal of S-shaped spring；And the thin film switch on pedestal is configured at via distance piece.
Patent document 1:Japanese Unexamined Patent Publication 2011-105278 publications
However, in the load detecting device being typically configured under seat cushion, because people is seated at seat and via seat cushion to carrying Lotus detection means imposed load.Therefore, in above-mentioned patent document 1, the load for putting on load detecting device dies down, so that in the presence of The worry of the load applied because taking one's seat can not suitably be detected.
It therefore, it can consider for example following such structure.I.e., it is possible to consider to set pressing component, the pressing in switch Part is pressed by the compression face of the seat cushion receiving pressing from seat and connects load detection sensor.
However, in the case where considering structure as described above, pressing component is produced with amount corresponding with actuating quantity It is unstable, therefore there is the worry for being contacted because of the action of the pressing component with miscellaneous part and producing abnormal sound.
Utility model content
Therefore, the purpose of this utility model is to provide the load for producing and suitably detecting load that can suppress abnormal sound Lotus is surveyed to carry and put.
In order to solve above-mentioned problem, load detecting device of the present utility model is characterised by possessing：Load detection sensing Device；Pressing component, it has the compression face for receiving the pressing from seat cushion, is pressed and right by above-mentioned seat cushion by above-mentioned compression face Above-mentioned load detection sensor is pressed；And elastic supporting part, it is from above-mentioned load detection sensor side to above-mentioned pressing Part is supported.
In such load detecting device, for example, the lower surface of the compression face of pressing component and the seat cushion of seat, bed etc. It is opposed, and it is provided with the load detection sensor pressed by the pressing component and from load detection sensor side to the pressing component The elastic supporting part supported.
Pressing component is supported by by elastic supporting part from load detection sensor side, therefore is passed not surveying to carry to the load During sensor imposed load, pressing component can be avoided to act and contact to cause abnormal sound by the contact with miscellaneous part.
In addition, pressing component also relaxes with action when pressing accordingly press load detection sensor from seat cushion. Therefore, in the case that the action with pressing component is accordingly contacted with miscellaneous part, pressing component phase can also be reduced For the impact of the miscellaneous part, as a result, abnormal sound can be suppressed.
So, load detecting device can suppress the generation of abnormal sound and can suitably detect load.
Furthermore it is preferred that, above-mentioned compression face is with relative to the change of the angle for the mounting surface for being placed with above-mentioned load detection sensor The mode of change is acted relative to above-mentioned mounting surface.
In this case, in the case of the lower surface of seat cushion is inclined, compression face can also follow the inclination. Therefore, compression face is suitably pressed by the lower surface of seat cushion, so as to suitably detect load.
Additionally, it is preferred that, above-mentioned load detection sensor has：The 1st electrode slice including at least more than one the 1st electrode, Configured compared to above-mentioned 1st electrode slice by above-mentioned pressing component side and including the 2nd electricity with the 2nd electrode of above-mentioned 1st electrode contraposition Pole piece and it is configured between above-mentioned 1st electrode slice and above-mentioned 2nd electrode slice and at least in above-mentioned 1st electrode and the above-mentioned 2nd The distance piece of opening is provided between electrode, a part for above-mentioned 2nd electrode slice turns into above-mentioned elastic supporting part.
In this case, it is not necessary to which elasticity is separately set in load detecting device outside load detection sensor Supporting member, therefore, it is possible to realize miniaturization, the space saving of the load detecting device.
Additionally, it is preferred that, above-mentioned 2nd electrode slice includes metallic plate, a part for above-mentioned metallic plate in above-mentioned pressing component side As above-mentioned elastic supporting part.
In this case, the 2nd electrode slice includes metallic plate in pressing component side, therefore in the case of temperature change Flexibility is also difficult to change.Therefore, in the case of the variation of ambient temperature around the load detecting device, it is pressed part The flexibility of the metallic plate of pressing is also relatively difficult to change.In addition, a part for metallic plate is elastic supporting part, therefore even in load In the case of variation of ambient temperature around lotus detection means, the elastic force of elastic supporting part is also difficult to change.Therefore, according to this Load detecting device, in the case of variation of ambient temperature, the error detection that can also suppress to take one's seat etc..
Additionally, it is preferred that, above-mentioned 2nd electrode slice is made up of metallic plate, in above-mentioned metallic plate across above-mentioned opening with it is above-mentioned The position of 1st electrode contraposition turns into above-mentioned 2nd electrode, and other positions of above-mentioned metallic plate turn into above-mentioned elastic supporting part.
In this case, metallic plate is undertaken as the effect of the electrode for the side for constituting switch and as to pressing The effect for the support that part is supported.Therefore, it is possible to suppress the number of components of load detection sensor and suppress abnormal sound Generation and can suitably detect load.
Additionally, it is preferred that, above-mentioned 2nd electrode slice includes the insulating trip for setting above-mentioned 2nd electrode and configuration in above-mentioned insulating trip Above-mentioned pressing component side surface on above-mentioned metallic plate.
In this case, in load detecting device, it is not required that separately set outside load detection sensor Elastic supporting part, therefore, it is possible to realize miniaturization, the space saving of the load detecting device.
Additionally, it is preferred that, it is formed in and is not applied by a part for above-mentioned 1st electrode slice and a part for above-mentioned 2nd electrode slice Also the connection maintenance portion of electrical connection is maintained in the case of external pressure, one of above-mentioned 2nd electrode slice in above-mentioned connection maintenance portion is constituted Divide and double as above-mentioned elastic supporting part.
In this case, in load detection sensor, it is formed at the circuit of the 1st electrode slice and is formed at the 2nd electricity The circuit of pole piece turns into conducting state all the time via connection maintenance portion.Therefore, the company of series connection in the circuit of load detection sensor In the case that the serial number of the switch connect is odd number, a pair of terminal of circuit can only be matched somebody with somebody in the load detection sensor It is placed in either one of the 1st electrode slice and the 2nd electrode slice.
In addition, the part for constituting the 2nd electrode slice in connection maintenance portion doubles as elastic supporting part, therefore in elastic bearing Portion, the power as repulsive force is applied to the 1st electrode slice side, is constituting a part for the 2nd electrode slice in connection maintenance portion also to the 1st Electrode slice side applying power.Therefore, it is possible to make the connection status in connection maintenance portion more firm.
In addition, metallic plate undertakes the effect for the electrode slice for making a pair of terminal be configured at a side and carried out as to pressing component The effect of the support of supporting.Therefore, it is possible to suppress the number of components of load detection sensor, and abnormal sound generation can be suppressed And suitably detect load.
Additionally, it is preferred that, above-mentioned elastic supporting part is disposed between above-mentioned load detection sensor and above-mentioned pressing component The plate-shaped member being made up of metal, above-mentioned plate-shaped member bends towards above-mentioned pressing component side with arch, above-mentioned plate-shaped member It is overall to turn into above-mentioned elastic supporting part.
In this case, by the way that by seat cushion pressing, the pressing component of press load detection sensor is pressed towards this The plate-shaped member that pressure component side is bent with arch is supported.Therefore, the load of load detection sensor is put on from pressing component Change easily depends on the plate-shaped member supported to the pressing component.In addition, the plate-shaped member is made up of metal, therefore with Situation about being made up of resin etc. is compared, it is difficult to produce deterioration.Therefore, even if continuously pressing pressing component during the seat cushion length, Also the change for the load that load detection sensor is put on from the pressing component can be reduced by plate-shaped member.As a result, energy It is enough suitably to detect load.
Additionally, it is preferred that, the mode that above-mentioned plate-shaped member is left by the rising along with temperature from above-mentioned insulating trip is deformed Bimetal piece formed.
Insulating trip is easily deformed along with the rising of temperature, easily makes load with weaker power along with the rising of temperature Lotus detection sensor is connected.In addition, metal flexibility in the case of temperature change is not changed much, but it is not flexible constant Change.Therefore, if metallic plate is formed by the bimetal piece deformed in the way of being left by the rising along with temperature from insulating trip, In the case where temperature rises, easily bent due to insulating trip, connect load detection sensor easily by weaker power, gold Category plate is separated with insulating trip, is changed so can suppress load detection.Therefore, it is possible to more suitably detect load.
Additionally, it is preferred that, the position that above-mentioned elastic supporting part supports above-mentioned pressing component is located at than above-mentioned load detection sensing The upper position of device.
In this case, with elastic supporting part weight/HP ratio detection sensor side bearing pressing component more on the lower feelings Condition is compared, and can realize miniaturization.
As described above, according to the utility model, using the teaching of the invention it is possible to provide the generation of abnormal sound can be suppressed and can suitably be examined Survey the load detecting device of load.
Brief description of the drawings
Fig. 1 is the exploded view for the structure for representing the load detecting device involved by the 1st embodiment.
Fig. 2 is that the load detecting device for representing Fig. 1 is installed on the sectional view of the situation of S-shaped spring.
Fig. 3 be represent the people taken one's seat be normally seated at seat unit situation and it is forward take one's seat in the case of, load with The figure of relation between the angle of seat cushion lower surface with respect to the horizontal plane.
Fig. 4 is the figure for representing the appearance that load detection sensor is supported to case cover.
Fig. 5 is the exploded view of the structure for the load detection sensor for representing Fig. 1.
Fig. 6 is the sectional view of the X-X lines of Fig. 5 load detection sensor.
Fig. 7 is the sectional view of the Y-Y lines of Fig. 5 load detection sensor.
Fig. 8 is the figure for representing to be fixed on the equivalent circuit of the load detection sensor of housing.
Fig. 9 is the figure for the on-state for representing load detection sensor.
Figure 10 is to represent from upper surface side the figure of the metallic plate of the load detection sensor of the 2nd embodiment and cut open The figure in face.
Figure 11 is to be conceived to the figure represented with the 1st embodiment the 2nd contact portion of different shapes.
Figure 12 is to represent from upper surface side the figure of the metallic plate of the load detection sensor of the 3rd embodiment and cut open The figure in face.
Figure 13 is the figure in the load detecting device that the 4th embodiment is shown with Fig. 4 identical viewpoints.
Figure 14 is the figure in the load detecting device that the 4th embodiment is shown with Fig. 2 identical viewpoints.
Figure 15 is the figure in the load detecting device that the 5th embodiment is shown with Fig. 2 identical viewpoints.
Figure 16 is the figure in the structure for the load detection sensor 5 that the 5th embodiment is shown with Fig. 5 identical viewpoints.
The explanation of reference
1 ... load detecting device；2 ... pedestals；3 ... housings；4 ... case covers；5 ... load detection sensors；21 ... mountings Portion；21S ... mounting surfaces；22 ... hook portions；41 ... arms；42 ... openings；43 ... switch press portions (axle portion)；44... supporting station； The upper surface (compression face) of 47US ... case covers；50 ... the 1st electrode slices；51 ... substrates；52 ... the 1st electrodes；53 ... the 1st contacts Portion；54 ... resistance；60 ... the 2nd electrode slices；61 ... metallic plates；62 ... the 2nd electrodes；63 ... the 2nd contact portions；64... elastic bearing Portion；56th, 66 ... insulating trips；67 ... plate-shaped members；100 ... S-shaped springs；AP ... connection maintenances portion；SC ... seat cushions；SU ... load is examined Survey sensor unit；SW ... is switched.
Embodiment
Hereinafter, referring to the drawings preferred embodiment saying in detail to load detecting device of the present utility model It is bright.In addition, in order to be readily appreciated that, there is a situation where that the engineer's scale of each figure is different from the engineer's scale described in the following description.
(1) the 1st embodiment
Fig. 1 is the exploded view of the structure for the load detecting device for representing the 1st embodiment, and Fig. 2 is to represent load detection dress Put the sectional view of the appearance of the 1 S-shaped spring for being installed on seat unit.In addition, Fig. 2 is to represent the left and right directions along seat unit Face load detecting device 1 sectional view, in order to avoid the complication of the figure simplifies load detection sensor 5.As schemed 1st, shown in Fig. 2, the load detection sensor cell S U conducts that load detecting device 1 possesses pedestal 2 and is positioned on pedestal 2 Main structure.
Pedestal 2 has：The mounting portion 21 loaded for load detection sensor cell S U；And link with the mounting portion 21 A pair of hook portions 22.The face of the upside of mounting portion 21 is formed as the mounting surface 21S loaded for load detection sensor cell S U.Separately Outside, in mounting portion 21, it is formed with the face (side opposite with mounting surface 21S from mounting surface 21S insertions to the downside of mounting portion 21 Face) multiple through holes 23.Pedestal 2 is for example formed by the way that metallic plate is formed, in this case, and thickness of slab is, for example, 0.8mm。
A pair of hook portions 22 are the fasteners for making pedestal 2 be engaged with S-shaped spring 100, and are respectively arranged at across mounting portion 21 And mutually opposing position.These hook portions 22 are respectively embedded into the opening strung alongside of the framework in the seat unit in vehicle A pair of S-shaped springs 100 of the adjoining in multiple S-shaped springs 100.In present embodiment, a pair of hook portions 22 are formed as along seat Device it is transversely arranged, and be embedded in a pair of S-shaped springs 100 being laterally abutted.In addition, being embedded in such neighbour in a pair of hook portions 22 In the state of a pair of the S-shaped springs 100 connect, mounting portion 21 is located at the lower section for the seat cushion SC being positioned on multiple S-shaped springs 100, And mounting portion 21 is configured between a pair of S-shaped springs 100 in the case of multiple S-shaped springs viewed from above.As above State like that, a pair of hook portions 22 are embedded in the state of a pair of S-shaped springs 100, in the present embodiment, and mounting surface 21S is located at than each The position of the bottom of individual S-shaped spring 100 more on the lower.
Make as shown in figure 1, load detection sensor cell S U possesses housing 3, case cover 4 and load detection sensor 5 For primary structure.
As shown in Figure 1 and Figure 2, housing 3 has：The connector portion 31 that is connected with vehicle (not shown) with control unit and with The sensor resettlement section 32 that the connector portion 31 links.Sensor resettlement section 32 has bottom wall 37 and frame wall 38, by the bottom wall The 37 and receiving space CA of the formation collecting load survey set sensor 5 of frame wall 38.In addition, in the present embodiment, in order to suppress Deformation during resin forming, thinned processing is implemented to frame wall 38.
Bottom wall 37 in sensor resettlement section 32 is provided with a pair of fastening pins 33 and a pair of connecting pins 34.A pair of fixations It is the pin for being respectively used to that the load detection sensor 5 being contained in housing 3 is fixed with pin 33.In addition, a pair of connecting pins 34 are electrically connected for the bonder terminal respectively with connector portion 31, and are electrically connected with load detection sensor 5, and will be even Connect the pin that device terminal is electrically connected with load detection sensor 5.In addition, Fig. 1 omits the bonder terminal of connector portion 31.
The lateral surface of the frame wall 38 of sensor resettlement section 32 is provided with a pair of protrusion tabs 35.In the present embodiment, on A pair of protrusion tabs 35 are stated to set along the horizontally disposed way of seat.In addition, being provided with embedded pedestal 2 in the lower end of frame wall 38 Each through hole 23 multiple hook tabs 36.By the way that each hook tabs 36 to be embedded in each through hole 23 of pedestal 2, housing 3 is consolidated Due to pedestal 2, load detection sensor cell S U is placed in the mounting surface 21S of pedestal 2 as described above.
Case cover 4 is by being pressed and the pressing component of press load detection sensor 5 by seat cushion SC.The case cover 4 has There are roof 47 and frame wall 48, the receiving space CA of sensor resettlement section 32 is covered by the roof 47 and frame wall 48.In shell The lower end of the frame wall 48 of body cover 4 is provided with a pair of arms 41.It is provided through receiving for the sensor for being arranged at housing 3 in each arm 41 The opening 42 that the protrusion tab 35 of the frame wall 38 in appearance portion 32 is embedded in.By the way that a pair of protrusion tabs 35 of housing 3 are respectively embedded into a pair of arms 41 respective opening 42, so that case cover 4 be engaged with housing 3.That is, in the state of case cover 4 and housing 3 are engaged, into The state of housing 3 is clamped from the transverse direction of seat for a pair of arms 41.
The roof 47 of case cover 4 is provided with opposed with the bottom wall 37 of sensor resettlement section 32 face from as housing 3 Lower surface 47LS protrude switch press portion 43.The front end in the switch press portion 43 turns into the curve form of convex.In housing Cover 4 covers housing 3 and in the state of each opening 42 has been respectively embedded into protrusion tab 35, and the front end in switch press portion 43, which is located at, to be carried The top of the switch of lotus detection sensor 5.In addition, under the state, between the roof 47 of case cover 4 and the frame wall 38 of housing 3 It is formed with gap GA.General seat cushion SC is made up of the polyurethane resin foamed.Therefore, as the material of case cover 4, it can enumerate poly- The resins such as carbonic ester (PC), polyamide (PA), polybutylene terephthalate (PBT) (PBT), phenolic resin, epoxy resin.
In the state of load detecting device 1 is installed on a pair of S-shaped springs 100, the upper surface of the roof 47 of case cover 4 47US and seat cushion SC lower surface separate as defined in distance and it is opposed.Upper surface 47US is to receive the pressing from seat cushion SC Compression face.In addition it is also possible to be the states that are contacted with seat cushion SC lower surface of upper surface 47US of the roof 47 of case cover 4. In the case of present embodiment, the roof 47 of case cover 4, which is more than, is switched on and off opening for the load detection sensor 5 that press section 43 is pressed Close, the switch press portion 43 is less than the switch of load detection sensor 5.That is, main view case cover 4 roof 47 upper surface In the case of 47S, the switch of load detection sensor 5 is located at than the scope that is impaled by upper surface 47S edge more in the inner part Position.In addition, in the case of the upper surface 47S of main view case cover 4, switch press portion 43 is located to be sensed than being detected by load The scope that the side of the switch of device 5 is impaled is more in the inner part.In addition, the 1st electrode 56e and the 2nd electrode 57e described later is load inspection The switch of sensor 5 is surveyed, the side of the switch of the load detection sensor 5 is the thickness with the 1st electrode 56e and the 2nd electrode 57e The side for the electrode spent on the orthogonal direction in direction.
Gap GA is formed between the roof 47 of case cover 4 and the frame wall 38 of housing 3.Therefore, along being placed with In the case of lotus detection sensor unit SU mounting surface 21S direction observation, case cover 4 can be so as to be used as the upper of compression face Surface 47US makes upper surface 47US overall relative to mounting surface 21S along front and rear relative to the mode of mounting surface 21S angle change Direction and left and right directions action.But, as described above, horizontal from seat unit clamps shell to a pair of arms 41 of case cover 4 Body 3, therefore for the angle that case cover 4 is acted, the fore-and-aft direction of seat is bigger than left and right directions.In addition, upper surface 47US is not It is divided, therefore upper surface 47US molar behaviors.
Fig. 3 be in the case of representing that the people taken one's seat is regular and being seated at seat unit and it is forward take one's seat in the case of, load With the graph of a relation between the angle of seat cushion lower surface with respect to the horizontal plane.As shown in Figure 3, in the case of normal take one's seat, The angle of the lower surface of seat cushion is limited to not in the range of load is untill 500N on the basis of original state at front, rear The change of 0.5 degree of foot.Very important person is normally taken one's seat, and is considered as the trend in the case that load is more than 500N also constant Change.But, in the case of forward take one's seat, the angle of the lower surface of seat cushion is and initial in the range of load is untill 500N State is compared to 5 degree or so of change.If in addition, case cover 4 is acted from original state in the way of more than 5 degree, producing switch and pressing The worry of the intensity decreases of the load detecting device 1 of the deformation of splenium 43 or the like.It is preferable therefore that the operating angle of case cover 4 is Less than 5 degree.Therefore the upper surface 47US of case cover 4 is it is also preferred that with less than 5 degree actions.In addition, normally taking one's seat as described above When, on the basis of original state in the range of front, rear are less than 0.5 degree, the angle of the lower surface of seat cushion produces change.Cause This, the change at the inclination angle of seat cushion lower surface is in the case of more than 0.5 degree, and the people taken one's seat to seat unit carries out forward The possibility taken one's seat is higher.Therefore, by making the upper surface 47US of case cover 4 also on the basis of original state with more than 0.5 degree Angle motion, at least a portion so as to the tilt angle varied with least causing seat cushion lower surface because of forward take one's seat is right Ground is answered to tilt upper surface 47US.
So along the direction for the mounting surface 21S for being placed with load detection sensor observe in the case of, case cover 4 into In the way of making the overall angle changes relative to mounting surface 21S of upper surface 47US as compression face, to make as compression face The overall states acted relative to mounting surface 21S of upper surface 47US.Under the state, the elasticity of load detection sensor 5 is constituted Support 64 (Fig. 1) is supported in the way of lifting case cover to the case cover 4.In addition, elastic supporting part 64 is to case cover 4 The position supported is located at the upper position of weight/HP ratio detection sensor 5.
Fig. 4 is the figure for representing the appearance that load detection sensor 5 is supported to case cover 4.In addition, Fig. 4 is along seat The sectional view of the load detecting device 1 in the face of the fore-and-aft direction of chair apparatus.In addition, in order to avoid figure is complicated, load is examined in Fig. 4 Sensor 5 is surveyed to simplify.
As shown in figure 4, the roof 47 of case cover 4 lower surface 47LS and be arranged at lower surface 47LS switch by The multiple supporting stations 44 protruded from lower surface 47LS are provided with around splenium 43.
The front end of supporting station 44 turns into flat shape, from the lower surface 47LS of each supporting station 44 to the height of front end be less than from The lower surface 47LS in switch press portion 43 to front end height.That is, the front end of each supporting station 44 is located at than switch press portion 43 Front end is closer to the top.
In the state of the covering housing 3 of case cover 4 is embedded in each protrusion tab 35 in each opening 42, each supporting station 44 Front end is abutted with a part for the elastic supporting part 64 of load detection sensor 5, passes through the support housing cover of elastic supporting part 64 4.And in this condition, case cover 4 as described above so that upper surface 47US is overall relative to being placed with load detection sensing The mode of the mounting surface 21S of device angle change makes upper surface 47US overall relative to mounting surface 21S actions.That is, load is detected The flexible support 64 of sensor 5, the elastic supporting part 64 is so that 47US entirety in upper surface is examined relative to load is placed with Surveying the mode of the mounting surface 21S of sensor angle change makes the overall states acted relative to mounting surface 21S of upper surface 47US Under, case cover 4 is supported.
Next, being illustrated to load detection sensor 5.
Fig. 5 is the exploded view for the structure for representing load detection sensor 5.In addition, Fig. 6 is the load detection biography shown in Fig. 5 The sectional view of the X-X lines of sensor 5, Fig. 7 is the sectional view of the Y-Y lines of the load detection sensor 5 shown in Fig. 5.
As shown in Fig. 5~Fig. 7, load detection sensor 5 possesses the 1st electrode slice 50, the 2nd electrode slice 60 and distance piece 70 It is used as primary structure.
1st electrode slice 50 is for example with the substrate 51 without flexible insulating properties.As the material of substrate 51, phenol can be enumerated Urea formaldehyde or epoxy resin etc..The face F1 of a side opposed with the 2nd electrode slice 60 in the substrate 51, is configured with the 1st electricity The contact portion 53 of pole 52 and the 1st.
1st electrode 52 is the electrode for the side for constituting switch SW, and it is for example formed as circular metal printing brush layer.In addition, 1st contact portion 53 by by the generally rectangular contact area AR1 contacted with the 2nd electrode slice 60 and with the 2nd electrode slice 60 Non-contacting non-contact area AR2 is connected with each other and formed.
The face F2 of the opposing party of the side opposite with the face F1 of a side in substrate 51 turns into load detection sensor 5 Lower surface, resistance 54 is configured with the face F2 of the opposing party.Resistance 54 is the resistance for detecting broken string, in present embodiment In, resistance 54 is made up of plate resistor.
Multiple through holes of the face F2 from the face F1 insertions of a side of the substrate 51 to the opposing party are formed with substrate 51, it Be respectively formed as the 1st through hole 55A, it is the 2nd through hole 55B, fixed with through hole 55C, 55D and pin through hole 55E、55F。
1st through hole 55A is the region for being configured with the 1st electrode 52 for making opening be located in the face F1 of a side of substrate 51 Interior piece through hole.The 1st electroconductive component CPA is provided with the 1st through hole 55A, via the 1st electroconductive component CPA, The circuit position that the face F2 of the opposing party of substrate 51 will be configured at is electrically connected with the 1st electrode 52.Thus, the 1st electroconductive component CPA Electrically connected with resistance 54, as a result, the 1st electrode 52 is electrically connected with resistance 54.In addition, the 1st electroconductive component CPA is arranged at On 1 through hole 55A inner peripheral surface, the air surrounded by the 1st electroconductive component CPA is formed with the 1st through hole 55A Hole SP.
2nd through hole 55B is the area for being configured with the 1st contact portion 53 for making opening be located in the face F1 of a side of substrate 51 Piece through hole in domain.In the present embodiment, the 2nd through hole 55B opening is positioned at the non-contact area of the 1st contact portion 53 In AR2.
The 2nd electroconductive component CPB is filled with the 2nd through hole 55B., will be via the 2nd electroconductive component CPB The circuit position of the face F2 configurations of the opposing party of substrate 51 is electrically connected with the non-contact area AR2 of the 1st contact portion 53, in substrate 51 The opposing party face F2 in, the 2nd electroconductive component CPB is connected with resistance 54.Therefore, resistance 54 is electrically connected with the 1st contact portion 53. As described above because the 1st electrode 52 is electrically connected as described above with resistance 54, so the 1st electrode 52, resistance 54, Yi Ji 1 contact portion 53 is electrically connected in series successively.
Fixed is a pair of fixations of the setting of bottom wall 37 in sensor resettlement section supplied in housing 3 with through hole 55C, 55D The through hole inserted with pin 33.The fixation through hole 55C, 55D diameter are identical journey with the external diameter of a pair of fastening pins 33 Degree.
Pin is for being arranged at the through hole that a pair of connecting pins 34 of housing 3 are inserted with through hole 55E, 55F.In pin insertion The terminal 5A of the hole 55E distal portion for being internally provided with the side as the circuit in load detection sensor 5, in pin with passing through The terminal 5B of the through hole 55F distal portion for being internally provided with the opposing party as the circuit in load detection sensor 5.Terminal 5A is electrically connected to the contact of the 1st electrode 52 and resistance 54, and terminal 5B is electrically connected to the contact of the contact portion 53 of resistance 54 and the 1st.Separately Outside, terminal 5A, 5B is set along corresponding pin with through hole 55E, 55F inner peripheral surface, surrounds the width in the terminal 5A, 5B space The external diameter of degree and connecting pin 34 is same degree.If a pair of connecting pins 34 are inserted through above-mentioned pin through hole 55E, 55F, terminal 5A is electrically connected with the connecting pin 34 of a side, and terminal 5B is electrically connected with the connecting pin 34 of the opposing party.
2nd electrode slice 60 have metallic plate 61, the 2nd electrode 62, the 2nd contact portion 63 and elastic supporting part 64 (64A~ 64C) as main structure.
Metallic plate 61 is the metallic plate with flexible thinner thickness, is formed as having in the present embodiment than substrate 51 Longitudinally wide short longitudinally wide and with the transverse width equal with the transverse width of the substrate 51 thinner thickness length Cube shape.As the material of metallic plate 61, as long as metal, just there is no particular limitation, such as enumerating copper, stainless steel.
The fixation through hole from the face insertion of a side of the metallic plate 61 to the face of the opposing party is formed with metallic plate 61 65C、65D.Fixed is that set for the bottom wall in sensor resettlement section in housing 3 a pair are fixed with through hole 65C, 65D The through hole that pin 33 is inserted, it is formed as fixed identical with through hole 55C, 55D with the formation of substrate 51 in the 1st electrode slice 50 Shape, formed objects.In addition, the 2nd electrode 62 and the 2nd contact portion 63 are relative to the fixed configuration section with through hole 65C, 65D The 1st electrode 52 and the 1st contact portion 53 in position and the 1st electrode slice 50 is relative to the fixed configuration section with through hole 55C, 55D Position turns into relatively the same position relationship, in the case where making the 1st electrode slice 50 overlapping with metallic plate 61, fixation through hole 55C uses through hole 65C overlapped with fixed, fixed overlapped with through hole 55D and fixed through hole 65D.
2nd electrode 62 is the electrode for the opposing party for constituting switch SW, be in the present embodiment in metallic plate 61 across Distance piece 70 and the position opposed with the 1st electrode 52.That is, a part for metallic plate 61 doubles as the 2nd electrode 62.In addition, for example, , as the 2nd electrode 62, and metallic plate can will be configured at from the metal level of the identical material of metallic plate 61 or different materials In 61 across distance piece 70 and the position opposed with the 1st electrode 52.
2nd contact portion 63 is the part for the side for constituting connection maintenance portion AP, is formed as leaf spring in the present embodiment. That is, in metallic plate 61, it is provided with and is cut from one end of the metallic plate 61 towards a pair that another side extends across predetermined distance Position folded by mouth 61A and 61B (Fig. 1), above-mentioned otch 61A and 61B (Fig. 1) turns into the 2nd contact portion 63.In addition, the 2nd touches Point portion 63 is bent in the way of the section of the thickness direction along metallic plate 61 turns into V shape.That is, the 2nd contact portion 63 has：From Positioned at the side of the 1st electrode slice 50 root from switch-back point P to the 2nd contact portion 63 tilt extension spring leaf C1 and with from Switch-back point P away from and the mode remote with spring leaf C1 is tilted and to the 2nd contact portion 63 front extend spring leaf C2. Switch-back point P turns into the position abutted with the 1st contact portion 53 of the 1st electrode slice 50.
The position different from the position as the 2nd electrode 62 turns into the 2nd contact portion 63 like this in metallic plate 61.The 1st In the case that electrode slice 50 is overlapping with the 1st electrode slice 60, being formed with the position of the 2nd contact portion 63 turns into and the 1st contact portion 53 Position overlapping contact area AR1.In addition, the shape of the leaf spring as the formation of the 2nd contact portion 63, such as can be the width of root The degree trapezoidal shape bigger than the width of open end, can using rectangle, it is trapezoidal beyond it is variously-shaped.In addition, being used as the 2nd contact portion 63, the metal level from the identical material of metallic plate 61 or different materials can be configured to the 1st electrode slice of metallic plate 61 50 sides.
Elastic supporting part 64 is the part that is supported to case cover 4 and flexible, three positions in present embodiment Put support housing cover 4.I.e., in the present embodiment, it is provided with the elastic supporting part of the short brink of a side positioned at metallic plate 61 The short brink of 64A and the opposing party in the metallic plate 61 are straight with the imagination passed through across the long side direction in elastic supporting part 64A A pair of elastic supporting parts 64B, 64C that line LN (Fig. 1) mode is present.
Elastic supporting part 64A is the part for a position for supporting case cover 4, and the 2nd contact portion 63 is formed as into one The leaf spring partly used.That is, elastic supporting part 64A have the 2nd contact portion 63 spring leaf C1 and spring leaf C2 and from this The mounting piece C3 that the sheet surface of spring leaf C2 and metallic plate 61 approximately parallel extends.Piece C3 is loaded to be located at than metallic plate main body The high position of sheet surface, one 's be arranged at as mounting in the lower surface 47LS of case cover 4 multiple supporting stations 44 Position.In addition, metallic plate main body is beyond the 2nd contact portion 3 and elastic supporting part 64 (64A~64C) in metallic plate 61 Part.
Elastic supporting part 64B, 64C are to opposite with elastic supporting part 64A side on the basis of metallic plate main body Part that two positions are supported and formed as leaf spring.That is, elastic supporting part 64B, 64C has：Incline from metallic plate main body The spring leaf C12 tiltedly extended and the mounting piece approximately parallel extended from spring leaf C12 and metallic plate 61 sheet surface C13.Loading piece C13 turns into mounting piece C3 identicals highly, is multiple of the lower surface 47LS that mounting is arranged at case cover 4 The position of one in cushion cap 44.
Distance piece 70 is the insulating part for the thinner thickness being clamped between the 1st electrode slice 50 and the 2nd electrode slice 60, Be formed as in present embodiment with removing the metallic plate same general shape after the 2nd contact portion 63, formed objects from metallic plate 61. As the material of distance piece 70, the resins such as PET, PBT or PEN can be enumerated.
Opening 71 is formed with the distance piece 70.The opening 71 be configured at the 1st electrode 52 of substrate 51 and with the 1st electricity Between 2nd electrode 62 of the opposed metallic plate 61 in pole 52, it is formed in vertical direction and the 1st electrode 52 and the 2nd electrode 62 Overlapping position.The size of opening 71 turns into the state more slightly smaller than the size of the 1st electrode 52.
In addition, being formed with the opening 72 of slit-shaped in distance piece 70.The opening 72 is being configured at the 1st contact portion of substrate 51 Between 53 and the 2nd contact portion 63 of the metallic plate 61 opposed with the 1st contact portion 53, it is formed at and is touched with the 1st in vertical direction Point portion 53 and the overlapping position of the 2nd contact portion 63.The size of opening 72 turns into than being formed as the 2nd contact portion in metallic plate 61 The slightly larger state of the size of 63 leaf spring.
Also, it is formed with distance piece 70 fixed with passing through from the face insertion of a side of the distance piece 70 to the face of the opposing party Through hole 75C, 75D.Fixed is fixation for the bottom wall setting in sensor resettlement section in housing 3 with through hole 75C, 75D The through hole that pin 33 is inserted, its with the formation of substrate 51 in the 1st electrode slice 50 it is fixed with through hole 55C, 55D same shape, Formed objects.In addition, the opening 71 and opening 72 in distance piece 70 are relative to the fixed configuration section with through hole 75C, 75D The 1st electrode 52 and the 1st contact portion 53 in position and the 1st electrode slice 50 is relative to the fixed configuration section with through hole 55C, 55D Position turns into relatively the same position relationship.Therefore, make the 1st electrode slice 50, the electrode slice 60 of distance piece 70 and the 2nd overlapping In the case of, fixed overlapped with through hole 55C, fixed through hole 65C and fixed through hole 75C, fixation insertion Hole 55D, fixation are overlapped with through hole 65D and fixed through hole 75C.
Such 1st electrode slice 50, the 2nd electrode slice 60 and distance piece 70 are overlapping and constitute load detection sensor 5. In load detection sensor 5, as shown in fig. 6, the 1st electrode 52 is opposed across opening 71 with the 2nd electrode 62, so as to form switch SW.In the state of the 1st electrode 52 is separated with the 2nd electrode 62, the distance of the 1st electrode 52 and the 2nd electrode 62 is, for example, 0.1mm. Moreover, the airport SP being formed in electrode through hole 52A is connected with opening 71.Therefore, bent and with the 1st in the 2nd electrode 62 , can be by outside discharge of the unnecessary air from airport SP to load detection sensor 5 in the case that electrode 52 is contacted.This Sample, the 1st through hole 55A is not only used for by the 1st electrode 52 of the face F1 configurations in a side of substrate 51 and the opposing party's The hole of the circuit position electrical connection of face F2 sides configuration, also as by the air in opening 71 to the outside of load detection sensor 5 The steam vent of discharge.
In addition, as described above, in load detection sensor 5, the 2nd contact portion 63 of the 2nd electrode slice 60 is formed as plate Spring, and it is in generation plastic deformation and all the time inclined state relative to the sheet surface of metallic plate 61.Therefore, as shown in fig. 7, 2nd contact portion 63 departs from from distance piece 70 in the opening 72 that otch is formed, and with the 1st contact portion 53 of the 1st electrode slice 50 Contact area AR1 connections.So, the 1st contact portion 53 is contacted with the 2nd contact portion 63, so as to form connection maintenance portion AP.That is, 1st contact portion 53 of the 1st electrode slice 50 is to constitute to apply external pressure even in the case cover 4 not to load detection sensor cell S U In the case of also maintain electrical connection connection maintenance portion AP a side part, the 2nd contact portion 63 of the 2nd electrode slice 60 is to constitute The part of connection maintenance portion AP the opposing party.
In addition, in load detection sensor 5, the elastic supporting part 64 of the 2nd electrode slice 60 is formed as leaf spring, in always to The side inclined state opposite with the inclined side of the 2nd contact portion 63 on the basis of metallic plate main body.Therefore such as Fig. 4 institutes Show, load detection sensor 5 is configured with the receiving space CA of housing 3, in the case where the housing 3 is provided with case cover 4, bullet Property support 64 supports the case cover 4 in the way of each supporting station 44 for lifting case cover 4 three positions.As described above, Case cover 4, can be so that upper table in the case where being observed along the direction for the mounting surface 21S for being placed with load detection sensor 5 Face 47US makes upper surface 47US overall relative to mounting surface 21S actions relative to the mode of mounting surface 21S angle change.That is, Elastic supporting part 64 supports case cover 4：Made in the way of making angle changes of the upper surface 47US relative to mounting surface 21S The overall states acted relative to mounting surface 21S of surface 47US.
As shown in figure 1, such load detection sensor 5 is inserted through the 1st successively by a pair of fastening pins 33 of housing 3 Electrode slice 50 it is fixed with through hole 55C, 55D, distance piece 70 it is fixed with through hole 75C, 75D and the 2nd electrode slice 60 It is fixed to use through hole 65C, 65D, so as to be fixed on housing 3.Now the bottom wall 37 of substrate 51 and housing 3 is located at the 1st electrode 52 Between the mounting surface 21S of pedestal 2.In addition, being fixed with load detection sensor 5 in housing 3, further it is placed in housing 3 In the state of pedestal 2, the 1st electrode 52 and the 2nd electrode 62 are positioned at the bottom of each S-shaped spring 100 than being engaged for pedestal 2 Position more on the lower.
In addition, in the state of load detection sensor 5 is fixed on housing 3, a pair of connecting pins 34 are inserted in the 1st electricity respectively The pin of pole piece 50 through hole 55E, 55F.Thus, be arranged at pin through hole 55E, 55F inside terminal 5A, 5B with it is corresponding Connecting pin 34 contact, and electrically connected via the connecting pin 34 with the bonder terminal of the connector portion 31 of housing 3.In addition, By being provided with case cover 4, so that the supporting station 44 of case cover 4 is contacted with the elastic supporting part 64 of load detection sensor 5.By This as described above, elastic supporting part 64, which supports case cover 4, is：So that angles of the upper surface 47US relative to mounting surface 21S The mode of change makes the overall states acted relative to mounting surface 21S of upper surface 47US.
Fig. 8 is the figure for representing to be fixed on the equivalent circuit of the load detection sensor 5 of housing 3.As shown in figure 8, in conduct Between a pair of terminal 5A, 5B of the circuit end of load detection sensor 5, the switch SW (electricity of the 1st electrode the 52 and the 2nd is connected with Pole 62) with being connected maintenance portion AP (the 1st contact portion 53 and the 2nd contact portion 63).It is electric between switch SW and a pair of terminal 5A, 5B Connection, and be connected via a pair of terminal 5A, 5B with bonder terminal 3A, the 3B set in the connector portion 31 of housing 3.Separately Outside, as described above, resistance 54 is electrically connected with the 1st electrode 52 and the 1st contact portion 53, thus resistance 54 in parallel with Switch SW electrical connections.Therefore, if switch SW is turned on, compared with the situation that switch SW is off, terminal Resistance value between 5A, 5B declines.
Next, the detection of the load to applying because taking one's seat is illustrated.
If people is seated at seat unit, seat cushion SC following table is set to move downwards because of the load of people.Now, exist Make seat cushion SC lower surface because of the load of people relative to the inclined situation in S-shaped spring face including each S-shaped spring 100.And And, in the present embodiment, seat cushion SC lower surface is contacted with the upper end of a pair of hook portions 22.Therefore, even if under seat cushion SC Surface is tilted relative to S-shaped spring face as described above, also due to the upper end of a pair of hook portions 22 is entered to seat cushion SC lower surface Row pressing, so as to relax the inclination of seat cushion SC lower surface to a certain extent.
If seat cushion SC lower surface is further moved downwards, seat cushion SC lower surface is by the upper end of a pair of hook portions 22 Pressing, so as to be contacted in deformation with the upper surface 47US of case cover 4.Now, although seat cushion SC lower surface as described above Ground is alleviated inclination, but still suffers from situation inclined to a certain degree.In this case, seat cushion SC lower surface is also relative in S The mounting surface 21S of the pedestal 2 engaged on shape spring 100 is tilted, so that seat cushion SC lower surface is also relative on mounting surface 21S The upper surface 47US of fixed load detection sensor cell S U case cover 4 is tilted.
If seat cushion SC lower surface is further moved downwards, the upper surface of seat cushion SC lower surface to case cover 4 47US is pressed.Now, seat cushion SC lower surface as described above relative to the inclined feelings of upper surface 47US of case cover 4 Under condition, because case cover 4 can follow seat cushion SC, so upper surface 47US is so that relative mounting surface 21S angle change Mode is acted.Therefore, the following table plane-plane contact that the upper surface 47US of case cover 4 can be with seat cushion SC.
Gap GA is formed between case cover 4 and housing 3 as described above.Therefore, if seat cushion SC lower surface enters one Step is moved downwards, then the elastic supporting part 64 (64A~64C) of the load detection sensor 5 supported to case cover 4 is downwards Side's flexure, the case cover 4 is moved downwards in the range of the GA of the gap.
Fig. 9 is the figure for the on-state for representing load detection sensor 5.By the movement downward of case cover 4, from And the front end in switch press portion 43 is pressed the 2nd electrode 62, and the 2nd electrode 62 connects with the 1st electrode 52 as illustrated in fig. 9 Touch, be thus turned on the switch SW of load detection sensor 5.Therefore, the resistance value between a pair of terminal 5A, 5B becomes Low, the change of the resistance is detected via bonder terminal 3A, 3B by vehicle (not shown) with control unit.So, detect To the load applied because taking one's seat.
The load detection dress S1 of present embodiment possesses as described above：Load detection sensor 5, with conduct Receive the upper surface 47US of the compression face of the pressing of the seat cushion SC from seat unit and pressed by upper surface 7US by seat cushion SC Pressure and press load detection sensor 5 as the case cover 4 of pressing component and from the side of load detection sensor 5 to housing The elastic supporting part 64 that cover 4 is supported.
In such load detecting device 1, the side bearing case cover of set sensor 5 is surveyed from load by elastic supporting part 64 4, therefore when not to 5 imposed load of load detection sensor, case cover 4 move and with other portions of the grade of frame wall 38 of housing 3 Part is contacted, and can prevent the generation using the contact as the abnormal sound of cause.
In addition, case cover 4 is also delayed with action when pressing accordingly press load detection sensor 5 from seat cushion SC With.Therefore, in the case where the action with case cover 4 is accordingly contacted with miscellaneous part, case cover 4 can also be reduced relative to this The impact of miscellaneous part, its result can suppress abnormal sound.
So, the load detecting device 1 of present embodiment can suppress the generation of abnormal sound and suitably detect load.
In the load detecting device 1 of present embodiment, by the seat cushion SC compression faces pressed that is, the upper surface of case cover 4 47US produces change relative to the angle between the mounting surface 21S of pedestal 2.Therefore, even in seat cushion SC lower surface inclination Degree produces change and in the case of decline, upper surface 47US can also follow the inclination.Therefore, upper surface 47US and seat cushion SC The contact of lower surface appropriate ground and be pressed.Therefore, according to the load detecting device 1 of present embodiment, can suitably it examine Survey load.
In addition, in the load detecting device 1 of present embodiment, load detection sensor 5 has：Including at least one with On the 1st electrode 52 the 1st electrode slice 50, be configured at compared to the 1st electrode slice 50 (the switch press portion 43) side of case cover 4 and comprising 2nd electrode slice 60 of 2nd electrode 62 opposed with the 1st electrode 52 and it is configured at the 1st electrode slice 50 and the 2nd electrode slice 60 Between and at least be provided between the 1st electrode 52 and the 2nd electrode 62 opening 71 distance piece 70.In addition, the 2nd electrode slice 60 A part turn into elastic supporting part 64.
Therefore, in load detecting device 1, it is not necessary to which elastic supporting part is separately set outside load detection sensor 5 Part, therefore, it is possible to realize miniaturization, the space saving of the load detecting device 1.
In addition, in the load detecting device 1 of present embodiment, the 2nd electrode slice 60 is in case cover 4 (switch press portion 43) side Including metallic plate 61, a part for the metallic plate 61 turns into elastic supporting part 64.
Therefore, in load detecting device 1, the 2nd electrode slice 60 includes metallic plate in case cover 4 (switch press portion 43) side 61, therefore flexibility is difficult to change in the case of temperature change.Therefore, the environment temperature around load detecting device 1 becomes In the case of change, the flexibility for being switched on and off the metallic plate 61 of the pressing of press section 43 is difficult to change.In addition, a part for metallic plate 61 is Elastic supporting part 64, even if therefore load detection dress S1 around variation of ambient temperature in the case of, elastic supporting part 64 Elastic force is also difficult to change.Therefore, according to the load detecting device 1, even if in the case of variation of ambient temperature, can also suppress just The error detection of seat etc..
In addition, in the load detecting device 1 of present embodiment, the 2nd electrode slice 60 of load detection sensor 5 is by metal Plate 61 is constituted.Turn into the 2nd electrode via the opening 71 of the distance piece 70 in the metallic plate 61 position opposed with the 1st electrode 52 62, other positions of the metallic plate 61 turn into elastic supporting part 64.
Therefore, metallic plate 61 undertakes the effect for constituting the electrode of the side as switch SW and is used as and case cover 4 is carried out The effect of the support of supporting.Therefore, the load detecting device 1 of present embodiment can suppress the portion of load detection sensor 5 Number of packages amount and the generation of abnormal sound can be suppressed and load is suitably detected.
In addition, in the load detecting device 1 of present embodiment, passing through a part and the 2nd electrode slice 60 of the 1st electrode slice 50 A part be formed in do not apply external pressure in the case of also maintain electrical connection connection maintenance portion AP.
Therefore, in load detection sensor 5, it is formed at the circuit of the 1st electrode slice 50 and is formed at the electricity of the 2nd electrode slice 60 Road turns into conducting state all the time via connection maintenance portion AP.Therefore, the switch being connected in series in the circuit of load detection sensor 5 , can be only in the configuration circuit of the 1st electrode slice 50 in the load detection sensor 5 in the case that SW serial number is odd number A pair of terminal 5A, 5B.
In addition, in the load detecting device 1 of present embodiment, composition connects a part of simultaneous of maintenance portion AP metallic plate 61 Make elastic supporting part 64A.Therefore, for elastic supporting part 64A, the power as repulsive force is applied to the side of the 1st electrode slice 50, A part for connection maintenance portion AP the 2nd electrode slice 60 is being constituted also to the side applying power of the 1st electrode slice 50.Therefore, it is possible to make company The connection status for meeting maintenance portion AP is further consolidated.Also, metallic plate 61, which undertakes, makes a pair of terminal 5A, 5B be configured at the 1st electrode The effect of piece 50 and the effect as the support supported to case cover 4.Therefore, load detection sensing is further suppressed The number of components of device 5 and the generation of abnormal sound can be suppressed and load is suitably detected.
In addition, in the load detecting device 1 of present embodiment, the position of the support housing cover 4 of elastic supporting part 64 be located at than The upper position of load detection sensor 5.Therefore, it is more collateral on the lower in weight/HP ratio detection sensor 5 with elastic supporting part The situation of pressing component is held compared to miniaturization can be realized.
In addition, in the load detection sensor 5 of present embodiment, as described above, the 2nd electrode slice 60 is by metallic plate 61 Constitute.Therefore, lacked by the thermogenetic influence of the 2nd electrode slice 60, even if therefore use in high temperature environments, under low temperature environment, The sensitivity of load detection sensor 5 is also stablized.In addition, the 2nd electrode slice 60 is metal, can therefore, it is possible to reduce breakage etc. Improve durability.Also, the 2nd contact portion 63 as leaf spring also turns into metal in the 2nd electrode slice 60, therefore with the one of resin sheet The situation that part turns into leaf spring is compared, it is possible to increase be used as the malleability and plasticity of the 2nd contact portion 63 formed by the leaf spring.Cause This, can reduce the 2nd contact portion 63 formed as leaf spring fracture etc. it is damaged, it is possible to increase the durability of the leaf spring.
In addition, in the load detection sensor 5 of present embodiment, the substrate 51 of the sheet material as the 1st electrode slice 50 has There is the 1st through hole 55A of the face F2 from the face F1 insertions of a side opposed with the 2nd electrode slice 60 to the opposing party.In addition, the 1st Electrode 52 by the 1st electroconductive component CPA that is set in the 1st through hole 55A, and with the face F2 of the opposing party in substrate 51 The circuit position electrical connection of configuration.Therefore, it is possible to take out the terminal 5A of a side in the face F2 of the opposing party of substrate 51.Such as this implementation Mode like that, also with through hole 55E inside can configure terminal 5A in the pin different from the 1st through hole 55A.Therefore, exist Become simple in the case that load detection sensor cell S U is connected with the grade of connector portion 31 other electronic units.In addition, energy Enough face F2 that circuit position is arranged to the opposing party, therefore circuit position is set without the face F1 in a side, it can reduce by one The bumps that the face F1 of side circuit position is produced.Thereby, it is possible to make the sensitivity of load detection sensor 5 stable.
In addition, in the load detection sensor 5 of present embodiment, the opening of the surface side of a 1st through hole 55A side The region for being configured with the 1st electrode 52 in the face F1 of a side of substrate 51.In addition, the 1st through hole 55A has airport SP, airport SP via the electrode through hole 52A for being arranged at the 1st electrode 52, be communicated in the 1st electrode 52 and the 2nd electrode 62 it Between opening 71.Therefore, the 1st through hole 55A is not only used for the face F1 of the side by substrate 51 is configured at the 1st electrode 52 The connection hole electrically connected in the surface side of the opposing party of the substrate 51 with circuit position, also as by the air of distance piece to outside The steam vent of discharge.Therefore, with setting connection hole respectively compared with the situation of steam vent, it is possible to increase substrate 51 it is durable Property.In addition, without setting steam vent in addition, space can be saved.
In addition, in the load detection sensor 5 of present embodiment, the substrate 51 of the sheet material as the 1st electrode slice 50 exists The position different from the 1st through hole 55A, with the face F1 insertions from a side opposed with the 2nd electrode slice 60 to the opposing party's Face F2 the 2nd through hole 55B.In addition, the 1st contact portion 53 passes through the 2nd electric conductivity portion that is set in the 2nd through hole 55B Part CPB, so as to be electrically connected with the face F2 of the opposing party in the substrate 51 circuit positions configured.Therefore, it is possible in the another of substrate 51 The face F2 of one side takes out a pair of terminal 5A, 5B.As in the present embodiment, also can be in the pin different from the 1st through hole 55A Terminal 5A, 5B are configured with through hole 55E, 55F inside, therefore, by load detection sensor cell S U and connector portion 31 Become simple in the case of Deng the connection of other electronic units.In addition, circuit position can be arranged to the face F2 of the opposing party, therefore Circuit position is set without the face F1 in a side, can be reduced concavo-convex as caused by the face F1 of side circuit position.Thus, energy Enough make the sensitivity of load detection sensor 5 stable.
In addition, in the load detection sensor 5 of present embodiment, the face F2 with the opposing party for being configured at substrate 51, And the resistance 54 that the 1st electrode 52 is connected with the 1st contact portion 53.Therefore, in the case that the thickness of resistance 54 is larger, The situation for because of its thickness the sensitivity of load detecting device 1 being deteriorated can be avoided.
In addition, in the present embodiment, the circuit position of the 1st electrode slice 50 and resistance 54 are arranged at the another of substrate 51 The face F2 of side, a pair of terminal 5A, 5B is arranged in pin through hole 55E, 55F.Therefore, it is possible to from the face F1 of a side of substrate 51 Part beyond 1st electrode 52 and the 1st contact portion 53 is excluded.Therefore, it is possible to be eliminated in the face F1 of a side of substrate 51 The bumps produced by miscellaneous part, can more improve the sensitivity of load detecting device 1.
(2) the 2nd embodiments
Next, being illustrated to the 2nd embodiment of the present utility model.In addition, being illustrated to present embodiment When, for the inscape identical or equal with the 1st embodiment, identical reference numbers are marked, and suitably save The explanation slightly repeated.
Present embodiment load detection dress in, constitute load detection sensor 5 the 2nd electrode slice 60 metallic plate 61 with Load detecting device 1 in 1st embodiment is different.That is, in the metallic plate 61 in the 1st embodiment, using three positions Put elastic supporting part 64A~64C of support housing cover 4.On the other hand, in the present embodiment, supported using two positions The elastic supporting part of case cover 4.
Figure 10 is to represent from upper face side the figure of the metallic plate 61 of the load detection sensor of the 2nd embodiment and cut open The figure in face.As shown in Figure 10, the load detection sensor of present embodiment passes through different from the 1st embodiment allocation position one Support housing cover 4 is come to elastic supporting part 64B, 64C.
Sides of the elastic supporting part 64B of present embodiment to extend from the middle part of the long side of a side of metallic plate 61 Formula is configured.In addition, elastic supporting part 64C is matched somebody with somebody in the way of the middle part extension of the long side of the opposing party from metallic plate 61 Put.
In addition, in the present embodiment, omitting the 1st embodiment party formed by the 2nd contact portion 63 as a part of use The elastic supporting part 64A of formula, changes the shape of the 2nd contact portion 63 of present embodiment.Specifically, such as Figure 10 and Figure 11 institutes Show, the 2nd contact portion 63 of present embodiment is put down by spring leaf C1 and from spring leaf C1 is approximate with the sheet surface of metallic plate 61 The contact piece C4 extended capablely is constituted.Contact piece C4 turns into the position abutted with the 1st contact portion 53 of the 1st electrode slice 50.
In addition, in present embodiment, changing the quantity and allocation position of the supporting station 44 of case cover 4.It is specific not shown, But the supporting station 44 of present embodiment is two, and is arranged at position corresponding with a pair of elastic supporting parts 64B, 64C.In addition, In the case of securing load detection sensor 5 in the assigned position of housing 3, with a pair of bullets with the load detection sensor 5 Property the mode that abuts of support 64B, 64C respective mounting piece C13 be configured with supporting station 44.
In the load detecting device of such present embodiment, as case cover 4 compression face upper surface 47US with The action that the inclination of seat cushion SC bottom surface is accordingly followed is alleviated.Therefore, with the action of case cover 4 accordingly, with housing 3 In the case that the grade of frame wall 38 miscellaneous part is contacted, impact of the case cover 4 relative to the miscellaneous part can be reduced, as a result, can Suppress abnormal sound.
(3) the 3rd embodiments
Next the 3rd embodiment of the present utility model is illustrated.In addition, being illustrated to present embodiment When, for the inscape identical or equal with the 1st embodiment, identical reference numbers are marked, and suitably save The explanation slightly repeated.
In the load detecting device of present embodiment, the metallic plate 61 of the 2nd electrode slice 60 of load detection sensor 5 is constituted It is different from the load detecting device 1 of the 1st embodiment.That is, in the metallic plate 61 of the 1st embodiment, employ three positions The elastic supporting part 64 of support housing cover 4.On the other hand, in the present embodiment, using in two position support housing covers 4 Elastic supporting part.
Figure 12 be represent from upper surface side the figure of the metallic plate 61 of the load detection sensor of the 2nd embodiment and The figure of section.As shown in figure 12, the load detection sensor of present embodiment passes through different from the 1st embodiment allocation position A pair of elastic supporting part 64B, 64C support housing covers 4.
The elastic supporting part 64B of present embodiment from metallic plate 61 to be provided with the end of the short brink of the 2nd contact portion 63 The mode of portion's extension is configured.In addition, elastic supporting part 64C is the short brink of the opposing party of metallic plate 61, and with from the elasticity The mode that the end that support 64B turns into diagonal side extends is configured.
In addition, in the present embodiment, omitting the 1st embodiment party formed by the 2nd contact portion 63 as a part of use The elastic supporting part 64A of formula, the spring leaf C1 and contact piece C4 structures of the 2nd contact portion 63 of present embodiment for example as shown in Figure 11 Into.
In addition, in present embodiment, changing the quantity and allocation position of the supporting station 44 of case cover 4.It is specific not shown, But the supporting station 44 of present embodiment is two, and is arranged at position corresponding with a pair of elastic supporting parts 64B, 64C.In addition, In the case of securing load detection sensor 5 in the assigned position of housing 3, with a pair of bullets with the load detection sensor 5 Property the mode that abuts of support 64B, 64C respective mounting piece C13 be configured with supporting station 44.
In the load detecting device of such present embodiment, as case cover 4 compression face upper surface 47US with The action that the inclination of seat cushion SC bottom surface is accordingly followed is alleviated.Therefore, in the action with case cover 4 accordingly, with housing 3 The grade of frame wall 38 miscellaneous part contact in the case of, can also reduce impact of the case cover 4 relative to the miscellaneous part, as a result, Abnormal sound can be suppressed.
(4) the 4th embodiments
Next the 4th embodiment of the present utility model is illustrated.In addition, being illustrated to present embodiment When, for the inscape identical or equal with the 1st embodiment, identical reference numbers are marked, and suitably save The explanation slightly repeated.
In the load detecting device of present embodiment, the metallic plate of the 2nd electrode slice 60 of load detection sensor 5 is constituted 61 is different from the load detecting device 1 of the 1st embodiment.That is, in the metallic plate 61 of the 1st embodiment, employ three positions Put the elastic supporting part 64 of support housing cover 4.On the other hand, in the present embodiment, employ in a position support housing 4 Elastic supporting part 64.
Figure 13 be to represent the figure of the load detecting device of the 4th embodiment with Fig. 4 identical viewpoints, Figure 14 be with figure 2 identical viewpoints represent the figure of the load detecting device of the 4th embodiment.As shown in Figure 13, in the present embodiment, save Slightly a pair of elastic supporting parts 64B, 64C, only leave elastic supporting part 64A.Therefore, as shown in figure 14, with switch press portion 43 Formed as benchmark between the roof 47 of the case cover 4 of the side opposite with elastic supporting part 64A sides and the frame wall 38 of housing 3 Gap GA disappear, the state contacted as the roof 47 with frame wall 38 passes through a part for the support housing cover 4 of frame wall 38.
In the load detecting device of such present embodiment, as case cover 4 compression face upper surface 47US with The action that the inclination of seat cushion SC bottom surface is accordingly followed is alleviated.Therefore, with the action of case cover 4 accordingly, with housing 3 In the case that the grade of frame wall 38 miscellaneous part is contacted, impact of the case cover 4 relative to the miscellaneous part can be also reduced, as a result, energy Enough suppress abnormal sound.
But, there is the position that the roof 47 of case cover 4 is contacted with the frame wall 38 of housing 3, therefore preferably such as the 1st embodiment party Formula~the 3rd embodiment is such, overall to case cover 4 to support, as the roof 47 not over case cover 4 and housing 3 Frame wall 38 and contact position state.
(5) the 5th embodiments
Next the 5th embodiment of the present utility model is illustrated.In addition, being illustrated to present embodiment When, for the inscape identical or equal with the 1st embodiment, identical reference numbers are marked, and suitably save The explanation slightly repeated.
Figure 15 be to represent the figure of the load detecting device of the 5th embodiment with Fig. 2 identical viewpoints, Figure 16 be with figure 5 identical viewpoints represent the figure of the structure of the load detection sensor 5 of the 5th embodiment.
As shown in figure 15, in the present embodiment, it is accommodated in the receiving space CA of housing 3 load detection sensor 5 It is fixed on such as by adhesive on the bottom wall 37 of housing 3, therefore omits a pair of fastening pins 33.In addition, such as Figure 15 and Shown in Figure 16, the structure of load detection sensor 5 and the structure of elastic supporting part are changed.
That is, present embodiment by housing 3, case cover 4, load detection sensor 5 and as elastic supporting part by The plate-shaped member 67 that metal is constituted constitutes load detection sensor cell S U, passes through load detection sensor cell S U and pedestal 2 Constitute load detecting device 1.The opening of slit-shaped is omitted in the distance piece 70 of load detection sensor 5 in present embodiment 72, and it is provided with the slit SR of air discharge.On the other hand, in the 1st electrode slice 50 of present embodiment, substitution the 1st is implemented The substrate 51 of mode and use insulating trip 56.The terminal arrangement that insulating trip 56 is protruded by sheet body 56A and from the sheet body Portion 56B is constituted.Tabular is configured with terminal arrangement portion 56B and on the face identical face of sheet body 56A and the 1st electrode 52 Terminal 5A.Terminal 5A is connected via wiring with the 1st electrode 52, and via wire etc. and the bonder terminal of connector portion 31 Electrical connection.Therefore, it is identical with fastening pin 33 also to omit connecting pin 34 in present embodiment.In addition, being used as the material of insulating trip 56 Material, can enumerate the resins such as PET, PBT or PEN.
In addition, omit the 1st contact portion 53 in the 1st electrode slice 50 in present embodiment, the 1st through hole 55A, the 2nd Through hole 55B, fixation through hole 55C, 55D and pin through hole 55E, 55F.
On the other hand, in the 2nd electrode slice 60 of load detection sensor of present embodiment is constituted, substitution the 1st is implemented The metallic plate 61 of mode and use insulating trip 66.Insulating trip 66 is matched somebody with somebody by sheet body 66A and from the terminal of sheet body protrusion Put portion 56B compositions.Terminal arrangement portion 66B is with the not side overlapping with terminal arrangement portion 56B on the direction orthogonal with sheet surface Formula set, the terminal arrangement portion 66B and sheet body 66A be provided with the 2nd electrode 62 face identical face on be configured with The terminal 5B of tabular.Terminal 5B is connected and via wire etc. and the connection of connector portion 31 via wiring with the 2nd electrode 62 Device terminal is electrically connected.In addition, as the material of insulating trip 66, the resins such as PET, PBT, PEN can be enumerated.
In addition, omitting the 2nd contact portion 63 in the 2nd electrode slice 60 of present embodiment and fixed with through hole 65C, 65D.
The load detection sensor 5 of present embodiment is opened without connection maintenance portion AP as so-called film like this Close structure.
However, in the 2nd electrode slice 60 of present embodiment, the metallic plate 61 without the 1st embodiment as described above, Therefore the elastic supporting part 64 for the part for being formed at the metallic plate 61 disappears, and on the other hand, is separately newly set with the 2nd electrode slice 60 Put the plate-shaped member 67 being made up of metal as elastic supporting part.I.e., in the present embodiment, with load detection sensor 5 Separately it is provided as the plate-shaped member 67 of elastic supporting part.
Plate-shaped member 67 is not secured to insulating trip 66, and is fixed on housing 3.As shown in Figure 15, in present embodiment In, there are a pair of ribs 39 in the position impaled by frame wall 38.Distance between the rib 39 is less than the length of plate-shaped member 67, plate-like portion These ribs 39 are fixed at the two ends of part 67.Thus plate-shaped member 67 is bent towards as the case cover side of pressing component with arch. In addition, plate-shaped member 67 is more than a pair of insulating trips 56,66.
The position for including rate of curving highest position in the plate-shaped member 67 is provided with for the insert of switch press portion 43 Through hole 68.In the state of case cover 4 is provided with housing 3, switch press portion 43, should by the through hole 68 of plate-shaped member 67 The front end in switch press portion 43 is located between plate-shaped member 67 and insulating trip 66, and thus, plate-shaped member 67 supports case cover 4 For：Make upper surface 47US overall relative to mounting surface in the way of making angle changes of the upper surface 47US relative to mounting surface 21S The state of 21S actions.That is, plate-shaped member 67 is overall turns into elastic supporting part.
In such load detecting device, the upper surface 47US and seat cushion SC of the compression face of case cover 4 bottom surface are used as The action accordingly followed of inclination be alleviated.Therefore, with the action of case cover 4 accordingly, with the grade of frame wall 38 of housing 3 other In the case of component contact, impact of the case cover 4 relative to the miscellaneous part can be reduced, as a result, abnormal sound can be suppressed.
In addition, the plate-shaped member 67 of present embodiment is arranged at load detection sensor 5 and the housing as pressing component Between 4 (switch press portions 43) of cover, and it is made up of metal.In addition, the plate-shaped member 67 is bent towards the side of case cover 4 with arch, Plate-shaped member 67 is overall to turn into elastic supporting part.
In this case, by being pressed by seat cushion SC and the case cover 4 of press load detection sensor 5 is by towards its housing The plate-shaped member 67 that covers 4 sides and bent with arch and support.Therefore, the load of load detection sensor 5 is put on from case cover 4 Change easily depend on the plate-shaped member 67 that is supported to the case cover 4.In addition, the plate-shaped member 67 is made up of metal, Therefore compared with situation about being made up of resin etc., it is difficult to produce deterioration.Therefore, even if from seat cushion SC is long-term and Continued depression housing Cover 4, the change for the load that load detection sensor 5 is put on from the case cover 4 can be also reduced by plate-shaped member 67.It is tied Really, load can suitably be detected.
In addition, in present embodiment, plate-shaped member 67 is by overall support housing cover 4, therefore with passing through the plate-shaped member The situation of 67 a part of support housing cover 4 is compared, being capable of readily and stably support housing cover 4.
In addition, in present embodiment, the material of plate-shaped member 67 is made up of metal, but preferably by with along with the upper of temperature The bimetal piece that the mode for rising and being left from insulating trip 66 is deformed is constituted.As in the present embodiment in resinous insulating trip In the case of being formed with electrode on 66, insulating trip 66 is easily deformed along with the rising of temperature, along with the rising of temperature SW will be switched easily by weaker power to connect.In addition, metal is flexible in the case of temperature change nor great changes, but It is not that pliability does not change completely.Therefore, plate-shaped member 67 from insulating trip 66 by being left with the rising along with temperature The bimetal piece that mode is deformed is constituted, so that in the case where temperature rises, insulating trip 66 easily bends, passes through weaker power appearance Easily switch SW connections, plate-shaped member 67 are left from insulating trip 66, changed thus, it is possible to the detection for suppressing load.Therefore, it is possible to More suitably detect load.
More than, it is illustrated using the above-mentioned embodiment of load detecting device of the present utility model as example, but this practicality It is new to be not limited to above-mentioned embodiment.
For example, in above-mentioned embodiment, being configured on the fore-and-aft direction and left and right directions of seat unit, so that conduct The mode of angle changes of the upper surface 47US relative to mounting surface 21S of compression face makes upper surface 47US relative to mounting surface 21S Action.But, the utility model not limited to this.For example, it is also possible to only in the longitudinal direction, so that compression face is relative to mounting surface The mode of 21S angle change makes compression face be acted relative to mounting surface 21S.In this case, for example, load detection sensor 5 Axle with the left and right directions extension along seat unit, makes compression face only move along the longitudinal direction centered on the axle.Phase Instead, load detection sensor cell S U can also be configured to along seat unit fore-and-aft direction extend axle, using the axle as Center makes compression face only move in left-right direction.Or, can also so that compression face relative to load detection sensor 5 mounting Face 21S angle does not change and moved relative to above-mentioned above and below the mounting surface 21S modes moved.
In addition, in the above-described embodiment, can also be configured on the fore-and-aft direction and left and right directions of seat unit, Make upper surface 47US in the way of upper surface 47US is equally changed relative to mounting surface 21S angle relative to mounting surface 21SC is acted.Or, can also be so as to be used as mounting surfaces of the upper surface 47US relative to load detection sensor 5 of compression face 21S angle does not change and moved relative to above-mentioned above and below the mounting surface 21S modes moved.
In addition, in above-mentioned embodiment, the pressing component of press load detection sensor 5 turns into case cover 4.However, example Such as, case cover 4 can also be omitted, pressing component is configured in load detection sensor 5.Receive to come as long as pressing component has From the compression face of the pressing of the seat cushion of seat unit, the compression face is pressed load detection sensor 5 by being pressed Part, various structures can be used.In addition, in above-mentioned embodiment, with housing 3, but it is also possible to omit housing 3.The feelings Under condition, load detection sensor 5 is directly set on pedestal 2, case cover 4 is locked to pedestal 2.
In addition, in above-mentioned embodiment, the position that elastic supporting part 64 is supported to case cover 4 is detected positioned at weight/HP ratio Sensor 5 is upper.However, it is also possible to change the shape of case cover 4 etc., make the portion of the support housing cover 4 of elastic supporting part 64 Position turns into load detection sensor below 5.In addition, surveying the metal of set sensor 5 in the switch press portion 43 of case cover 4 and load In the state of plate 61 is separated, elastic supporting part 64 is supported to case cover 4.However, it is also possible in switch press portion 43 and gold Belong in the state of the abutting of plate 61, elastic supporting part 64 is supported to case cover 4.
In addition, in the above-described embodiment, as the axle portion extended from upper surface 47US towards mounting surface 21S sides that is, open Close the structure that the front end of press section 43 is pressed the electrode that is, the 2nd electrode 62 that switch a SW side.But it is also possible into It is to separate independence for the axle portion to the switch SW parts pressed and the front end with the pivot as upper surface 47US Structure.
In addition, in above-mentioned embodiment, the 1st electrode 52 and the 2nd electrode 62 are located at the S-shaped bullet engaged respectively for pedestal 2 The position of spring 100 more on the lower.But, in the utility model, if the 1st electrode 52 and the 2nd electrode 62 during detection load Position of the contact surface positioned at the upper end than S-shaped spring 100 more on the lower, then the 1st electrode 52 and the 2nd electrode 62 can not also Positioned at the position than S-shaped spring 100 more on the lower.For example, the 1st electrode 52 and the 2nd electrode 62 can also be located at S-shaped spring Between 100 bottom and upper end.
In addition, in the above-described embodiment, the mounting surface 21S for being placed with load detection sensor 5 is located at than blocking for pedestal 2 Each position of S-shaped spring 100 more on the lower only.But, in the utility model, mounting surface 21S can also turn into than S-shaped bullet The bottom height of spring 100 and the height lower than upper end.But, from can more effectively suppress from the additional tilting load in upside The reasons why directly acting on the position near mounting surface 21S, the load detection sensor cell S U mounting surface 21S of pedestal goes out Hair, mounting surface 21S is preferably placed at the bottom position more on the lower than engaging each S-shaped spring 100 for pedestal 2 or is located at With the position of the bottom identical height of S-shaped spring 100.
As long as in addition, load detection sensor 5 is not particularly limited with a pair of electrodes.For example, the 1st embodiment~ The load detection sensor 5 of 4th embodiment can also turn into the load detection sensor 5 of the 5th embodiment, the 5th embodiment party The load detection sensor 5 of formula can also turn into the load detection sensor 5 of the embodiment of the 1st embodiment~the 4th.In addition, As long as detect the sensor of load, it would however also be possible to employ the load detection sensor 5 of the embodiment of the 1st embodiment~the 5th with Outer load detection sensor.
Specifically, for example, replacing the load detection sensor 5 of the embodiment of the 1st embodiment~the 4 and applying the 5th The load detection sensor 5 of embodiment.Moreover, the load detection sensor 5 of the 5th embodiment insulating trip 66 and make Metallic plate is configured on surface for the side of case cover 4 of pressing component, the 2nd of two layers comprising the metallic plate and insulating trip 66 is constituted Electrode slice, and a part for the 2nd electrode slice is turned into elastic supporting part.Insulation can be included using the 2nd electrode slice like this The metallic plate of piece 66 and configuration on the surface of the pressing component side of the insulating trip 66 a, part for the 2nd electrode slice turns into bullet The structure of property support.Also it is identical with above-mentioned embodiment in the case of using such structure, in load detecting device, Elastic supporting part need not be separately set outside load detection sensor 5, therefore, it is possible to make the load detecting device small-sized Change, so that space saving.
Alternatively, it is also possible to change the shape of housing 3 by removing pedestal 2 as load detection sensor cell S U, from And configure the structure on the bottom plate of seat unit.
In addition, for each inscape of load detecting device, in shown in above-mentioned embodiment, above-mentioned variation Outside appearance, can be suitably combined in the range of the application purpose is not departed from, omit, change, known technology it is additional Deng.
As long as load detecting device of the present utility model is to load relative to the detection object that should detect load Whether there is and detected that just there is the possibility utilized.That is, load is configured with above-mentioned embodiment below the seat cushion SC of vehicle Lotus detection means, detects the load applied by taking one's seat for people, but above-mentioned embodiment is not limited to this, can use its other party Formula.For example, can enumerate the mode of load detecting device is configured in the lower section of the seat cushion of Bed with special provision for nursing.In such mode, load Detection means can detect load, the testing result based on the load detecting device, can obtain showing to whether there is on seat cushion The information of someone.

Claims (10)

1. a kind of load detecting device, it is characterised in that possess：
Load detection sensor；
Pressing component, the pressing component has the compression face for receiving the pressing from seat cushion, and by the compression face by institute State seat cushion pressing and the load detection sensor is pressed；And
Elastic supporting part, the elastic supporting part is supported from the load detection sensor side to the pressing component.
2. load detecting device according to claim 1, it is characterised in that
The compression face is in the way of relative to the angle change for the mounting surface for loading the load detection sensor relative to institute State mounting surface action.
3. load detecting device according to claim 1 or 2, it is characterised in that
The load detection sensor has：The 1st electrode slice including at least more than one the 1st electrode, compared to the 1st electrode Piece is configured by the pressing component side and including the 2nd electrode slice with the 2nd electrode of the 1st electrode contraposition and is configured at At least it is provided with out between 1st electrode slice and the 2nd electrode slice and between the 1st electrode and the 2nd electrode The distance piece of mouth,
A part for 2nd electrode slice turns into the elastic supporting part.
4. load detecting device according to claim 3, it is characterised in that
2nd electrode slice includes metallic plate in the pressing component side, and a part for the metallic plate turns into the elasticity branch Bearing portion.
5. load detecting device according to claim 4, it is characterised in that
2nd electrode slice is made up of the metallic plate,
Turn into the 2nd electrode, the gold with the position of the 1st electrode contraposition across the opening in the metallic plate Belonging to other positions of plate turns into the elastic supporting part.
6. load detecting device according to claim 4, it is characterised in that
2nd electrode slice includes the pressing component of the insulating trip for setting the 2nd electrode and configuration in the insulating trip The metallic plate on the surface of side.
7. load detecting device according to claim 3, it is characterised in that
It is formed in by a part for the 1st electrode slice and a part for the 2nd electrode slice in the case of being not applied to external pressure Also the connection maintenance portion of electrical connection is maintained, the part for constituting the 2nd electrode slice in the connection maintenance portion doubles as the bullet Property support.
8. load detecting device according to claim 1 or 2, it is characterised in that
The elastic supporting part is disposed on what is be made up of between the load detection sensor and the pressing component and metal Plate-shaped member,
The plate-shaped member is bent towards the pressing component side with arcuation, and the plate-shaped member integrally turns into the elastic bearing Portion.
9. load detecting device according to claim 8, it is characterised in that
The plate-shaped member is double golden by what is deformed in the way of the rising along with temperature and away from the load detection sensor Category part is formed.
10. load detecting device according to claim 1 or 2, it is characterised in that
The position that the elastic supporting part supports the pressing component is located at the position more upper than the load detection sensor Put.
CN201621390933.7U 2016-03-25 2016-12-16 Load detecting device Expired - Fee Related CN206426877U (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2016061610 2016-03-25
JP2016-061610 2016-03-25
JPPCT/JP2016/082850 2016-11-04
PCT/JP2016/082850 WO2017163479A1 (en) 2016-03-25 2016-11-04 Load detection device

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Publication Number Publication Date
CN206426877U true CN206426877U (en) 2017-08-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621390933.7U Expired - Fee Related CN206426877U (en) 2016-03-25 2016-12-16 Load detecting device

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Country Link
CN (1) CN206426877U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107226000A (en) * 2016-03-25 2017-10-03 株式会社藤仓 Load detecting device
CN108544986A (en) * 2018-06-13 2018-09-18 广东安闻汽车零部件有限公司 A kind of human pressure's sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107226000A (en) * 2016-03-25 2017-10-03 株式会社藤仓 Load detecting device
CN107226000B (en) * 2016-03-25 2019-10-22 株式会社藤仓 Load detecting device
CN108544986A (en) * 2018-06-13 2018-09-18 广东安闻汽车零部件有限公司 A kind of human pressure's sensor

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