CN1856630A - Door handle device and keyless entry device having the same - Google Patents

Abstract

A purpose of this invention is to provide a door handle device by using a piezoelectric sensor which has a pliable structure and which provides sufficient detection sensitivity even with a light-touch, thus making it possible to control the opening and closing operation; and a keyless entry device having the same. A door handle device (100) is designed such that a door lock means which is installed on a door (13) having a handle (11) for opening and closing operation and which locks the door opening operation for this door (13) is unlocked by the operation of the handle (11). The door handle device is provided with a piezoelectric sensor (15) disposed on the handle (11) and formed of a piezoelectric element having flexibility, and a control section adapted to receive a detection signal from the piezoelectric sensor (15) produced by contact with the handle (11), and to cancel the lock imposed by the door lock means.

Description

Door handle and keyless entry with this device

Technical field

The present invention relates to a kind of handling device, this device can be by being arranged at such as the sensor of the handling device of door handle etc. by detecting the operation control On/Off operation of handling device, and the keyless entry with this handling device.

And, the present invention relates to a kind of door On/Off device that is applicable to keyless entry, this system can not use under the key operated situation car door of locking/unblanking such as automobile etc.

Background technology

At the door handle by the operation vehicle when opening door lock, be used to detect the touching of handle or the sensor of operation is arranged at door handle, so have the function of when sensor is exported, under predetermined state, opening door lock when detection signal.

For example, disclose in the patent documentation 1 a kind of by using door handle device such as the contact-interconnection system switch opens door lock of diaphragm switch etc.This diaphragm switch has known structure, partly is printed on the pair of electrodes of arranged at predetermined intervals on the opposite inner face of plate of a pair of flexible similar film, and described plate is arranged to via distance piece opposed mutually.Be in the OFF state under this diaphragm switch normal condition.Thereby be positioned at the elastic body such as silicon rubber etc. on the electrode part and be triggered device when promoting on placing a plate, electrode partly is in contact with one another, and therefore, switch is diverted the ON state.

Also have, patent documentation 2 discloses a kind of human body feeler that is used for opening as the capacitance sensor of sensor in the automobile, by use door lock.Use the outer knob-shaped of automobile-used human body feeler to become shape with hollow.Formation is passed the cavity setting as the parallel cable of the capacitance sensor of noncontacting proximity sensor, extends with the longitudinal direction along the shank of outer handle.Parallel cable is connected in guard wire, and near the opening that the base end part of guard wire is arranged to be provided with the pivoting portions via handle outside extends to the outside, and the other end of guard wire is connected in circuitry substrate.

Simultaneously, open the normal method for unlocking of door lock in the keyhole that key is inserted door handle, recently, so-called key is not inserted keyhole but be to use that the personal verification blocks, the keyless entry of unblanking of transmitter etc. is applied to car door, outer cover etc.Such vehicular radio locking device is disclosed in patent documentation 3.In this vehicular radio locking device, when the door handle of vehicle is pushed, control section is operated, when this locking device when the telegraph transmitter of vehicle side is received transmission/reception code, mobile telegraph transmitter is converted to the transmission state, so control section is carried out the process of unblanking according to the correct code that sends from mobile telegraph transmitter.Then, be provided for the checkout gear that the detecting gate handle is drawn back, the telegraph transmitter of vehicle side sends transmission/reception code according to the detection signal of this sensing device.

(patent documentation 1) JP-A-2002-322834

(patent documentation 2) JP-A-10-308149

(patent documentation 3) JP-A-8-53964

But, the contact-interconnection system switch that is used for door handle in the prior art has following shortcoming, promptly switch not can by such as just the contact etc. light operating of contacts.Also have, owing to need an impact come connecting terminal, so inevitably can time of occurrence between the moment that moment that switch is touched and switch begin to operate poor, this be to cause responding relatively poor factor.For example, if by holding and spurring door handle and promptly open the door, lock-out state still is held or can causes the click loud sound of rattling away so, because unblanking of locking device is insufficient.Therefore, be used for holding that door handle is essential after spurring door handle then waits for one section preset time, this can have influence on the sensation of operation unfriendly.

On the contrary, capacitance sensor is easy to be influenced by disturbance, because must be provided with from the teeth outwards from the structure electrode, so noise enters sensor easily.Also have, because everyone direct capacitance difference, and also can be changed,, promptly extremely difficultly carry out sensitivity control so sensor has following problems by footwear that worn.Therefore, the frequency that functional fault occurs is higher, so this sensor does not also drop in actual the use.

Even as can improve sensitivity, burbling noise component and can be when having in response to the touching sensation of very light touching the switch of conversion ON/OFF, preferably, should adopt piezoelectric transducer.

But, normal piezoelectric transducer is a rigid body, constitutes by being arranged in a row by the piezoelectric element that pottery etc. is made.When space that limiting sensor is arranged, exist piezoelectric transducer can not arrange and be assemblied in the problem of ideal position.

Also have, can be suitable, optical pickocff should be as contactless.But owing to be attached to the dust of sensor, all weather conditions like rain, snow etc., usually can cause functional fault, this sensor can't be practical.

In this case, in the door handle that uses contact-interconnection system switch, static switching, normal Piezoelectric switches or optical switch, and be equipped with in the keyless entry of any door handle, be difficult to realize good operation feeling, operating reliability and assembly performance.

In view of the foregoing, make the present invention, the purpose of this invention is to provide a kind of door handle that can control the On/Off operation by piezoelectric transducer, even this device has flexible structure and also has enough susceptibilitys for touching to bump, and a kind of keyless entry that is equipped with this device, therefore realize the improvement of operation feeling, operating reliability and assembly performance.

Also have, recently, being equipped with the vehicle such as automobile etc. with keyless entry of improving convenient and safety purpose increases.

Keyless entry can not carry out locking under the key operated situation/opening door lock.Code data on the radio telecommunication terminal that door carries and controls by the cross reference driver via radio communication and the door between the radio telecommunication terminal etc. and locked/open.

In the prior art, as this keyless entry, proposed to be used for the door handle of vehicle as shown in figure 39.

In door handle 701, handle body 704 is fitted in the opening section 703 of car door 702 and as the grip portions that is used for the opening/closing car door, this handle structure becomes to have hollow structure.So handle operation sensor 705 is constructed into the cavity 704a of handle body 704.

So, because when people's such as driver finger touches handle body 704, change, so whether handle operation sensor 705 can carry out opening according to the variation detecting gate of direct capacitance around the touching of the direct capacitance of handle body 704 owing to human body.Therefore, this sensor has the sensor electrode 706 that is used to detect the direct capacitance variation, with antenna 707, this antenna is used for the signal (for example, referring to patent documentation 1) of the radio telecommunication terminal reception/transmission that transmission/reception driver carries and controls when the predetermined variation amount of direct capacitance or bigger variable quantity are detected by this sensor electrode 706.

In this case, extend the reveal that the arm of swinging with the direction that indicates at arrow (a) 708 is connected in handle body 704 from the front portion.And key cylinder 709 and crank throw spare 710 are arranged at the rear side of handle body 704, thereby they 702 can't oneself be opened to the doorstep from outside lock.Then, crank throw spare 710 constitutes door lock assembly when the bindiny mechanism (not shown) is cooperated.

Yet, have preliminary dimension or cavity 704a big slightly and that be used for inserting handle operation sensor 705 and must guarantee handle body 704 at door handle 701.Therefore, the problem that exists the shape and size of handle body 704 to be restricted.

And, infinitesimal variation will take place around the direct capacitance of handle body 704 by for example except the object contact of human body or touching the time.

Therefore, if the susceptibility of condenser type handle operation sensor 705 is redefined for lower and does not detect mistakenly because the infinitesimal capacitance variations that this disturbance causes, when the pressing hour of the finger that in the operation of the On/Off of door 702, puts on handle body 704, can't detect door 702 and whether carry out the On/Off operation so.Therefore, need finger to touch handle body 704 once more, therefore may reduce operability.

On the contrary,, be certain to so detect and whether carry out the operation of door 702 On/Off if the susceptibility of handle operation sensor 705 is increased, though in the process of On/Off door 702 finger to put on pressing of handle body 704 less.But the little variation of the direct capacitance that handle operation sensor 705 will be caused by disturbance is defined as door 702 carries out the On/Off operation, and sends signal, make insignificant signal process of transmitting towards periphery environment send noise.

And as shown in figure 40, the door lock knob 711 that is used for locking from the inboard door-locking system is arranged at car door, makes door 702 can't be opened by self at run duration.Therefore, when the driver gets off, at first carry out the opening operation of door lock knob 711, in released latch device (not shown), open door 702 then by door handle in operating 712, wherein, door latch device is configured to the hook of L, and locks being arranged on the U-shaped receiver of vehicle main body 713, this locking is releasable, (being referred to as " release " hereinafter).

Certainly, when the driver opens door 702 and gets on the bus from the outside, he or she outwards opens door 702 by door handle outside operating then by key being inserted the locking that key cylinder (not shown) and key etc. are opened door latch device in the released latch device.In Figure 40,714 expression glass windows, 715 expression steering wheels.

As mentioned above and since car door from the outside or the inboard open, under the normal condition, the driver open in the door latch device of latch on vehicle main body, by the time in the door locking system lock door door lock operate then in door handle or outside door handle open door.Therefore, the time of unblanking to finish of door locking system is preferably used in and carries out a door open operation at least, up to the operation of finishing by interior door handle or outer door handle release door locking system.

In the prior art, from this viewpoint of car door opening/shutoff operation, also there is not to disclose the technology of the handle operation sensor of operating about the door On/Off that is used for carrying out from the inboard.And, can consider this situation, if the door On/Off operation of carrying out from the inboard will be detected, in the door handle, the structure that is arranged at outer handle body with this sensor was similar in the handle operation sensor should be arranged on so.In this case, the size of interior door handle increases, and therefore, the measurable design of carrying out can stand various restrictions, thereby needs the assembly space etc. of broad.

And, as mentioned above, can suppose this situation, in the time can changing according to the gripping mode of handle body 704 by handle operation sensor 705 detecting gate open operation, the opening operation of door locking system is delayed, and does not consider the releasing operation by the door latch device of opening the handle body execution.At this moment, the door open operation of handle body 704 must be carried out under the different time, thereby can reduce operability.

And, as shown in figure 40,, carry out the open operation of door lock in order to open door, door latch device must be released by the actuating doors handle then.Therefore, need two stage operation, the operation of door On/Off becomes, and some is loaded down with trivial details.

(patent documentation 4) JP-A-2003-194959

In view of these problems of prior art, the problem that the present invention will overcome provides a kind of On/Off device, and this device can opened or the On/Off door lock in the outside and inboard door open operation that applies or the operation of door On/Off.

Summary of the invention

To achieve these goals, a kind of door handle that can open the lock of door locking device by the operation of handle of claim 1 according to the present invention, this device is arranged on the door, and has a handle that is used for On/Off operation, thereby the open operation of lock door, comprise piezoelectric transducer, this sensor is formed by the piezoelectric element that is assemblied in described handle, and has flexible; And control section, this part is used to receive the detection signal of the described piezoelectric transducer that is produced by the touching on the described handle, thereby opens the lock of described door locking device.

According to this door handle, piezoelectric transducer can be used as to have flexible cable and is attached to handle, and the vibration that acts on the handle can be detected in high sensitivity.Therefore, when the operator only touches handle, can obtain enough signal output, and can detect the touching on the handle.And, do not need to be provided with from the teeth outwards electrode, therefore, sensor is difficult to disturbed, accompanying dust, rain, snow etc. and has influence on.In addition, because piezoelectric transducer can be by the flexible deformation, so the constraints of assembly space can be reduced and assembly space can be reduced.

At the described door handle of claim 2, described handle has handle body, one of this main body distolaterally is supported in described door swingably via back shaft, another of this main body is distolateral to be moved on pull-out direction by a distolateral swing, and, described piezoelectric transducer is arranged on described handle body and the described door facing surfaces, thereby detects the vibration by the holding operation generation of described handle body.

According to this door handle, because piezoelectric transducer is arranged on handle body and the door facing surfaces, so when hand directly inserts between door and the handle body and handle body during by finger grip, the operator directly touches piezoelectric transducer probably, can improve the susceptibility that grips action thus.

In the described door handle of claim 3, described handle has handle body, one of this main body distolaterally is supported in described door swingably via back shaft, another of this main body is distolateral to be moved on pull-out direction by a distolateral swing, and, described piezoelectric transducer bridge joint between another of described door and described handle body is distolateral, thereby detect the vibration that the pull operation by described handle body produces.

According to this handling device, one of handle distolaterally is supported on the door swingably via back shaft, and distolateral the generation on the pulling direction when handle is held and spur of another of handle body moved.Therefore, because the piezoelectric transducer bridge joint to be extending between another of door and handle body is distolateral, to produce so reverse the tension force that is easy in the piezoelectric transducer that the pull operation by handle body produces, and can improve sensitivity.

In the described door handle of claim 4, described handle has handle body, one of this main body distolaterally is supported in described door swingably via back shaft, another of this main body is distolateral to be moved on pull-out direction by a distolateral swing, and, described piezoelectric transducer is arranged near the back shaft of described handle body, thereby detects the vibration by the pull operation generation of described handle body.

According to this door handle,, contact with back shaft so when handle body is swung around back shaft, produce crooked piezoelectric transducer around back shaft because piezoelectric transducer is arranged near the back shaft.Therefore, detect the vibration that produces by this touching, and can improve sensitivity.

In the described door handle of claim 5, described handle has handle body, one of this main body distolaterally is supported in described door swingably via back shaft, another of this main body is distolateral to be moved on pull-out direction by a distolateral swing, and, described piezoelectric transducer bridge joint described door and described handle body one distolateral between, thereby contact described back shaft, and the top of described piezoelectric transducer is inserted into and is formed on the inserting in the hole with as free end of described handle body.

According to this door handle, when handle body was swung, piezoelectric transducer contacted with back shaft, and remained on the inwall of the top friction patchhole of the piezoelectric transducer in the handle body.Therefore, the operation of handle body can be detected in the long distance of piezoelectric transducer in high sensitivity.And, in this door handle,, the top of piezoelectric transducer inserts control as free end because remaining on, be difficult in piezoelectric transducer, taking place so depend on the fatigue of time, therefore can obtain the life-time dilatation of piezoelectric transducer.

In the described door handle of claim 6, described handle is and door all-in-one-piece, handle with handle body that described door all is fixed at its two ends.

According to this door handle, because handle body be configured to not have moveable part with door all-in-one-piece handle, so piezoelectric transducer can directly not produced distortion by the operation of handle body, but handle operation only is detected by propagating the vibration that comes from handle body.Under the situation of this door handle, the fatigue of Chan Shenging is difficult for producing in piezoelectric transducer in time, therefore, therefore can obtain the life-time dilatation of piezoelectric transducer.

In the described door handle of claim 7, described piezoelectric transducer is arranged on the inboard of described handle body.

According to this door handle, the inboard of piezoelectric transducer setting and handle body.Therefore, piezoelectric transducer is coated with the shell of handle body, and piezoelectric transducer can protectedly be avoided impact that other materials applies and the occurring wear in time that produced by the contact of hand when operation.

At the described door handle of claim 8, wherein, described piezoelectric transducer is along the inner surface setting of described handle body.

According to this door handle, be arranged at of the inner surface setting of the piezoelectric transducer of handle body inboard, thereby make the vibration that produces by the handle body holding operation be easy to propagate by sensor along the shell of handle body.

At the described door handle of claim 9, wherein, when described door locking device was closed, described handle was hidden in the external surface position afterwards of described door, and when described door locking device was opened, described handle came out.

According to this door handle, the handle that is used for the On/Off door is arranged in for example cutting tip of door, and under the door closing state, it can not be exposed to external surface.In the handle after being hidden in door exterior surface, piezoelectric transducer detects by the action of patting on the door exterior surface and waits the vibration that produces.Therefore, when piezoelectric transducer detects vibration and when the controlled part of the lock of door locking device was opened then, door was opened into half-open position under the situation that handle is hidden, the handle that is exposed is closed fully subsequently.According to this door handle, handle body can be hidden in the individual position place that has only the operator to know after the door exterior surface.

The described a kind of keyless entry of claim 10 according to the present invention comprises: according to the described door handle of claim 1 to 9; Be installed on the vehicle side transmitter/receiver of vehicle side; The mobile side transmitter/receiver that carries by the operator; Control section, this part are used for receiving at described mobile side transmitter/receiver opens door lock when password request signal that described vehicle side transmitter/receiver sends and described then vehicle side transmitter/receiver receive the code signal that described mobile side transmitter/receiver sends; Wherein, described control section comprises the code signal request unit, thereby this device is used to receive the detection signal of described piezoelectric transducer makes described vehicle side transmitter/receiver send described password request signal, the code signal decision maker, this device is used to judge whether the code signal by described vehicle side transmitter/receiver reception and decoding is consistent with predefined normal signal, open indicating device with lock, this device is used for indicating described door locking device to open described lock when described code signal is consistent with described normal signal.

According to keyless entry, can carry out highly sensitive detection, be difficult for standing interference that the exposure by electrode causes and the door handle of the few of restrictive condition in installation site be assembled as main component parts.Since door handle can be only by touching that door handle is operated and do not need to impact, life period is not poor between the moment of door handle and moment that switch begins to operate so touch the operator.As a result, can reduce significantly to open the required time of described lock, and door locking device can respond and be unlocked the rapid door unlatching at lock unlatching indicating device indication door locking device after the operator touches handle up to control circuit.

A kind of keyless entry according to claim 11 of the present invention comprises: according to the described door handle of claim 1 to 9; Wherein, described control section comprises the code signal input unit, this device is used to receive the touching detection signal of described piezoelectric transducer, thereby wait for the input of code signal, the code signal decision maker, this device be used to judge from described piezoelectric transducer import described code signal input unit and decoded code signal whether consistent with predefined normal signal, open indicating device with lock, this device is used for indicating described door locking device to open described lock when described code signal is consistent with described normal signal.

According to this keyless entry, when the piezoelectric transducer of the door handle on being arranged at door detects the vibration that is produced by the door open operation, control circuit makes the code signal input unit enter the input wait state, thereby and under this input wait state code signal can be transfused to responding by the detected vibration of door handle.When the code signal that is obtained by inputted vibration was normal signal, lock was opened indicating device indication door locking device and is opened lock.Therefore, when having only door handle to be arranged at, do not need the vehicle side transmitter/receiver and move and survey transmitter/receiver.

In the described keyless entry of claim 12, described code signal is set according to the pat peak strength and the peak intervals of operating the vibrational waveform that produces with predetermined cadence.

According to this keyless entry, when the operator pats the handle body pre-determined number, the controlled partial decoding of h of this vibrational waveform with predetermined rhythm.Then, when this patted action (rhythm) corresponding to predetermined action, the controlled part of door locking device was opened.Just, the specific rhythm of patting that has only the operator to know has constituted code signal.

In the described keyless entry of claim 13, the pressure that described code signal produces according to the variation by gripping pressure changes the peak strength and the peak intervals of waveform and sets.

According to this keyless entry, when the rhythm holds handle main body pre-determined number of operator to be scheduled to, the controlled partial decoding of h of this waveform.Then, when this gripped action corresponding to predetermined action, the controlled part of door locking device was opened.Just, the specific gripping rhythm that has only the operator to know has constituted code signal.

At the described keyless entry of claim 14, also comprise disturb sensor, this sensor is used to detect except that as the detected signal components the signal of the detection target of the detection signal of described piezoelectric transducer.

According to this keyless entry, even act on when last when the vibration that is caused by interference, the vibration sensitivity that is produced by handle operation can be increased.Just, by the vibration that produces such as interference such as idling, and the vibration that is produced by handle operation is detected by piezoelectric transducer.In this case, the disturb sensor that is set on the door by the vibration that disturb to produce detects, and this is by disturbing the vibration that produces by from by deducting the detected vibration of piezoelectric transducer then.Therefore, can be eliminated by the noise that disturbs generation, thus the sensitivity of the vibration of increase handle operation.

According to door handle of the present invention, have flexible piezoelectric transducer and be attached to handle, the lock of door locking device is owing to the detection signal that receives piezoelectric transducer is unlocked.Therefore, when the operator only touches handle, can obtain the output of enough signal, but and high sensitivity detect touching on the handle.And sensor is difficult to the interference that is caused by the exposure by electrode, accompanying dust, rain, snow etc. and has influence on.In addition, because piezoelectric transducer can be by the flexible deformation, so the constraints of assembly space can be reduced and assembly space can be reduced.As a result, compare with door handle of the prior art, operation feeling, operation reliability and assembly performance can be improved significantly.

According to keyless entry of the present invention, can carry out highly sensitive detection, be difficult for standing interference that the exposure by electrode causes and the door handle of the few of restrictive condition in installation site fitted to be main component parts.Therefore and since door handle can be only by touching that door handle is operated and do not need to impact, life period is not poor between the moment of door handle and moment that switch begins to operate so touch the operator.As a result, can reduce significantly to open the required time of described lock, and the unlatching of door locking device can fully be opened in response to rapid door at lock unlatching indicating device indication door locking device after the operator touches handle up to control circuit.As a result, when the operator grips door handle, do not need to wait for preset time, therefore can improve operating experience.

And, the invention provides a kind of On/Off device, comprising: the outer door handle and the interior door handle that in the operation of door On/Off, grip; Door locking device, this device is used for lock door, thereby door can not be opened from the pent main body side of described door; Door latch device, this device are used for discharging ground from main body described door are carried out breech lock; Latch releasing operation device, thus this be installed on be used for from the outside or the inboard operation that applies cooperate mutually discharge described door latch device breech lock to open door; Latch release signal checkout gear responds and produces signal thereby this device is used for operation to described latch releasing operation device; With the main body side control device, this device is controlled the unlatching of described door locking device by the detection signal of described latch release signal checkout gear.

And, the invention provides a kind of On/Off device, comprising: the outer door handle and the interior door handle that in the operation of door On/Off, grip; Door locking device, this device is used for lock door, thereby door can not be opened; Door latch device, this device are used for discharging ground from main body described door are carried out breech lock; Latch release/setting operation device, thus this be installed on be used for from the outside or the inboard operation that applies cooperate mutually and discharge and set described door latch device with opening-closing door; Latch release/setting signal checkout gear responds and produces signal thereby this device is used for operation to described latch releasing operation device; With the main body side control device, this device by described latch discharge/detection signal of setting signal checkout gear controls the opening and closing of described door locking device.

Therefore, door lock can from the outside or the inboard door open operation that applies and the operation of door On/Off be unlocked simultaneously or be unlocked/close, thereby can carry out an open operation very simply or the door On/Off is operated.

At described a kind of the On/Off device of claim 15 according to the present invention, comprising: the outer door handle and the interior door handle that in the operation of door On/Off, grip; Door locking device, this device is used for lock door, thereby door can not be opened from the pent main body side of described door; Door latch device, this device are used for discharging ground from main body described door are carried out breech lock; Latch releasing operation device, thus this be installed on be used for from the outside or the inboard operation that applies cooperate mutually and discharge the breech lock of described door latch device, thereby open the door; Latch release signal checkout gear responds and produces signal thereby this device is used for operation to described latch releasing operation device; With the main body side control device, this device is controlled the unlatching of described door locking device by the detection signal of described latch release signal checkout gear.

Therefore, latch release signal checkout gear opposite house breech lock releasing operation device responds, this action with from the outside or the inboard door open operation that applies cooperate mutually, thereby produce signal, when the main body side control device receives this signal, control the unlatching of door locking device then.Therefore, the opening and closing of door open operation and door lock can be from the outside or inboard the realization, therefore, compared with prior art, from the outside or the complexity of inboard door open operation of carrying out be reduced, thereby make simple to operate.

Described a kind of the On/Off device of claim 16 according to the present invention comprises: the outer door handle and the interior door handle that grip in the operation of door On/Off; Door locking device is used for lock door and is not unlocked; Door latch device is used for discharging ground from main body and carries out breech lock to described door, latch releases/setting operation device, this device with from the outside or the operation that applies of inboard cooperate with release mutually and set described door latch device, thereby described of On/Off; Latch release/setting signal checkout gear is used for the operation of described latch release/setting operation device is responded to produce signal; With the main body side control device, be used for controlling the opening and closing of described door locking device by the detection signal of described latch release/setting signal checkout gear.

Therefore, the action of latch release/setting signal checkout gear opposite house breech lock release/setting operation device responds, this action with from the outside or the inboard door On/Off operation cooperation mutually that applies, thereby the generation signal, the opening and closing of control door locking device when the main body side control device receives this signal then.Therefore, the opening and closing of door On/Off operation and door lock can be from the outside or inboard the realization, therefore, compared with prior art, from the outside or an inboard On/Off operation complexity of carrying out be reduced, thereby make simple to operate.

In described On/Off device of claim 17, wherein, described latch release signal checkout gear or described latch release/setting signal checkout gear only detect from the outside or inboard door open operation that applies or the operation of door On/Off.

Therefore, the action of latch release signal checkout gear or latch release/setting signal checkout gear opposite house breech lock releasing operation device or latch release/setting operation device responds, this action with from the outside or the On/Off operation cooperation mutually of the inboard door that applies, thereby produce signal.Therefore, this latch release signal checkout gear or latch release/setting signal checkout gear can be common to from the outside or inboard detecting gate open operation or the operation of door On/Off, and can eliminate the variation in detecting gate open operation or the operation of door On/Off, thereby can carry out stable door On/Off operation.

In described On/Off device of claim 18, wherein, described latch release signal checkout gear or described latch release/setting signal checkout gear are arranged at the position that is produced signal by the action of common ground, the action of described common ground respectively with by described latch releasing operation device from the outside or the inboard door open operation that applies or by described latch releases/setting operation device from the outside or the inboard door On/Off that applies operate mutually and cooperate.

Therefore, can obtain and the identical advantage of the described invention of claim 17.And, because latch releases/setting signal checkout gear is arranged at the position that the action by common ground produces signal, become simple so install, wherein this action with from the outside or the inboard door open operation of carrying out or an On/Off operate mutually and cooperate.

In described On/Off device of claim 19, wherein, described latch release signal checkout gear or latch release/setting signal checkout gear are arranged on an inboard.

Therefore, latch release signal checkout gear or latch release/setting signal checkout gear are arranged at the inboard of door, the inboard that is held with the interior and outer door handle of On/Off door is wider than in described inboard, and the constraint of installing space can be reduced, and installs and can easily carry out.

And, there is no need latch release signal checkout gear or latch release/setting signal checkout gear are fit in the door handle.Therefore, the unnecessary cavity with preliminary dimension that latch release signal checkout gear or latch release/setting signal checkout gear will be installed is arranged in the door handle.As a result, the shape of door handle or size can be by arbitrary designs, focus on the gripping characteristic of operation and configuration design etc. simultaneously, therefore can increase the design margin of the shape or the size of door handle.

At described On/Off device of claim 20, wherein, described latch release signal checkout gear or latch release/setting signal checkout gear are formed by the piezoelectric element material, and described piezoelectric element material produces distortion by the action of described latch releasing operation device or latch release/setting operation device, thus the output signal of telecommunication.

Therefore, the piezoelectric element material is as latch release signal checkout gear or latch release/setting checkout gear, and the action of this piezoelectric element material arrangements paired latch releasing operation device or latch release/setting operation device responds and is out of shape and exports the signal of telecommunication.Therefore, can improve from the outside or the sensitivity of inboard door open operation that applies or the operation of door On/Off, so can quite easily set by outer door handle and interior door handle the corresponding time from the opening and closing of the release of the unlatching of the release of the door latch device of described main body and door locking device or door latch device and setting and door locking device.Therefore, can improve an operability of On/Off operation.

In described On/Off device of claim 21, the sweep that is applied with tension force is arranged at described piezoelectric element material, and described sweep is arranged to hold the distortion by the action generation of described latch releasing operation device or latch release/setting operation device.

Therefore, be applied with tension force and stand distortion by latch releasing operation device or the generation of latch releases/setting operation device with the sweep of the piezoelectric element material that improves sensitiveness.Therefore, can improve from the outside or the sensitivity of inboard door open operation that applies or the operation of door On/Off, so can quite easily set by outer door handle and interior door handle the corresponding time from the opening and closing of the release of the unlatching of the release of the door latch device of described main body and door locking device or door latch device and setting and door locking device.Therefore, can improve an operability of On/Off operation.

At the described keyless entry of claim 22, wherein, described main body side control device comprises main body transmission/receiving system, the code signal request unit, this device is used to receive the detection signal of described latch release signal checkout gear or latch release/setting signal checkout gear, the control device of asking then to be carried by door On/Off operator sends/receiving system transmission password request signal via described main body, door On/Off operator decision maker, this device is used to judge that the control device that carries from described door On/Off operator sends and whether the code signal of decoding is consistent with predefined normal signal, and lock control device for opening or lock On/Off control device, this device is used for the unlatching or the On/Off of control door locking device when described code signal is normal.

Therefore, can obtain with claim 15 to 21 in each identical advantage, and, can improve from the outside or sensitivity that the inboard door open operation that applies or door On/Off are operated.Therefore, can reduce up to lock control device for opening indication door locking device unlatching or lock On/Off control device indication door locking device and open or close the required time, therefore, this keyless entry can respond to rapid door open operation or rapid door On/Off, and opening and closing door locking device glibly.

A kind of described car door of the claim 23 according to the present invention that is equipped with keyless entry according to claim 22.

Therefore, can realize and the described identical advantage of claim 22 of the present invention.And, when this keyless entry is installed in for example described automobile, from the outside and inboard apply to operate with the door open operation of getting on the bus and getting off or door On/Off and the automobile that can provide the operator successfully to get on the bus and get off can be easily be provided when the door locking device opening and closing.

A kind of described building door of the claim 24 according to the present invention that is equipped with keyless entry according to claim 22.

Therefore, can realize and the described identical advantage of claim 22 of the present invention.And, when this keyless entry is installed in for example described building, operate and can be easily carry out when the door locking device opening and closing from the outside and inboard applying, and can provide the operator successfully to enter house and go out the room in room to enter house and to go out the door open operation in room or door On/Off.

Door of the present invention On/Off device can by from the outside or the inboard door open operation that applies or the operation of door On/Off open or close described door lock, and user's an On/Off processing ease is carried out.

Description of drawings

Fig. 1 is the external perspective view that illustrates according to the door handle of first embodiment of the invention.

Fig. 2 is the internal construction view, and wherein (a) illustrates the A-A cross section among Fig. 1, and the B-B cross section among Fig. 2 (a) (b) is shown.

Fig. 3 is the schematic structure view of piezoelectric transducer shown in Figure 2.

Fig. 4 is the structural view of piezoelectric element material shown in Figure 2.

Fig. 5 is the block diagram of door handle.

Fig. 6 is the related explanatory diagram between processing that operator's door breakdown action and car side control section be shown is moved.

Fig. 7 is the flow chart that the step that the lock of door locking device opens is shown.

Fig. 8 is the characteristic view that definite output J of the output signal V of piezoelectric transducer shown in Figure 5 and definite device is shown.

Fig. 9 is the sectional view of the variation scheme of first embodiment, and wherein piezoelectric transducer is along the inner surface setting of handle shell.

Figure 10 is the sectional view that door handle according to a second embodiment of the present invention is shown.

Figure 11 is the view along the C-C line gained among Figure 10.

Figure 12 is the plan view that the variation scheme 1 of second embodiment is shown, and wherein piezoelectric transducer is arranged near the back shaft.

Figure 13 is the plan view that the variation scheme 2 of second embodiment is shown, and wherein the top of piezoelectric transducer is inserted into inserting in the hole of handle body.

Figure 14 is the plan view that the variation scheme 3 of second embodiment is shown, and wherein handle body is constructed to be integrated in the handle in the door.

Figure 15 is the block diagram that the keyless entry of a third embodiment in accordance with the invention is shown, and wherein (a) illustrates its schematic structure, and figure (b) illustrates its main detailed structure.

Figure 16 is the flow chart that the operating procedure in the keyless entry shown in Figure 15 is shown.

Figure 17 is the block diagram that the keyless entry of a fourth embodiment in accordance with the invention is shown, and wherein (a) illustrates its schematic structure, and figure (b) illustrates its main detailed structure.

Figure 18 is the key-drawing that the signal inputting method of keyless entry shown in Figure 17 is shown.

Figure 19 is the flow chart that the operating procedure of keyless entry shown in Figure 17 is shown.

Figure 20 is the key-drawing of the association between the detection signal that the pressure that puts on door handle is shown, caused by this pressure and the pulse that caused by this detection signal.

Figure 21 is the flow chart of the step in the code signal identifying that illustrates in the keyless entry shown in Figure 17.

Figure 22 is the performance plot of the time conversion of the signal S2 of signal S1 that piezoelectric transducer is shown, perturbation sensor and signal S1-S2.

Figure 23 is the external perspective view that door handle according to a fifth embodiment of the invention is shown.

Figure 24 is the flow chart of the step in the code signal identifying in the door handle shown in Figure 23.

Figure 25 is the key-drawing of the association between the detection signal that the grip force that puts on door handle is shown, caused by this grip force and the pulse that caused by this detection signal.

Figure 26 is the key-drawing that comprises the detection frequency of signal extraction frequency band and noise band.

Figure 27 is the external view of door section that is equipped with the vehicle of door handle according to a sixth embodiment of the invention.

Figure 28 is the phantom drawing that door is not closed fully, therefrom can see handle.

Figure 29 is the phantom drawing at hatch back door, and door handle is arranged on this door.

Figure 30 illustrates the key-drawing that can use according to the various piece of door handle of the present invention, comprises that (a) is to (e).

Figure 31 illustrates the key-drawing that door handle according to the present invention is applied to situation about pulling handle.

Figure 32 is the structural block diagram that an On/Off system according to a seventh embodiment of the invention, that be installed on car door is shown.

Figure 33 (a) is the schematic structure view that the door latch device part of identical door On/Off system is shown when closing when door, and Figure 33 (b) is the view of release/setting test section that door latch device is shown.

Figure 34 (a) is the schematic structure view that the door latch device part of identical door On/Off system is shown when door is opened, and Figure 34 (b) is the view of release/setting test section that door latch device is shown.

Figure 35 is the structural view that comprises the unit of piezoelectric element material, the On/Off of the door that this material is used to detect in identical door On/Off device.

Figure 36 is the structural view of the piezoelectric element material in identical door On/Off system.

Figure 37 is to use the controlling party block diagram of the keyless entry of identical door On/Off system.

Figure 38 (a) is the view that puts on the bending load of the piezoelectric element material in the identical door On/Off system, and Figure 38 (b) is in response to the performance plot that this bending load is exported the output valve of this piezoelectric element material.

Figure 39 is the main sectional view of the door handle part of car in the prior art.

Figure 40 is in the prior art when the perspective schematic view of the part of the door handle when the inboard of car is watched.

In the accompanying drawings, Reference numeral 11,131,141 expression handles, 13,3a side surface (exposed uncovered positions), 15 piezoelectric transducers, the 15b top, 17,97,101,121 control circuits (control section), 21,175 back shafts, 23,133,173 handle body, 23a one is distolateral, and another is distolateral for 23b, and 23c is with respect to the surface of door, 31 piezoelectric elements, 85 patchholes, 91 car side transmitter/receivers, 93 move the side transmitter/receiver, 100,200,500,600 door handles, 103 door locking devices, 105 code signal request units, 111 code signals are determined device, 113 locking open command devices, 123 disturb sensors, 127 code signal input units, 300,400 keyless entries, 720 main bodys, 721,722 door locking devices, 723 outer door handles, door handle in 724,725 door latch devices, 726 latch release/setting operation devices (door unlock operation device), 727 latch release/setting signal checkout gears (latch release signal checkout gear), 728 main body side control device, 734 bars (public part), 736 piezoelectric element materials, 736a sweep, 746 main body transmission/receiving systems, 748 lock On/Off control device (lock control device for opening), 756 have a control device of On/Off operator, and 757 code signal request units and 761 code signals are determined device.

The specific embodiment

Explain below with reference to accompanying drawings according to door handle of the present invention and preferred embodiment with keyless entry of this handling device.

(first embodiment)

Fig. 1 is the external perspective view that illustrates according to first embodiment of the present invention door handle.Fig. 2 is the internal structural view, and wherein (a) illustrates the A-A cross section among Fig. 1, and the B-B cross section among Fig. 2 (a) (b) is shown.Fig. 3 is the schematic structure view of piezoelectric transducer shown in Figure 2.Fig. 4 is the structural view of piezoelectric element material shown in Figure 2.Fig. 5 is the block diagram of door handle.

As shown in Figure 1, the door handle 100 according to first embodiment is arranged at the door 13 with the handle 11 that is used for the On/Off operation.The door locking device (not shown) that is used to lock this open operation of 13 can be opened by operating handle 11.The primary structure of door handle 100 comprises piezoelectric transducer 15, this sensor forms by being arranged at handle 11 and having flexible piezoelectric element, control circuit 17, as mentioned below, it is as the control section of the detection signal that receives the piezoelectric transducer 15 that is produced by the touching on the handle 11, to open the locking (seeing Fig. 3, Fig. 5) of door locking device.

Door handle 100 is assemblied in the door (external door panel) 13 of vehicle.Handle 11 has handle body 23, and one distolateral 23 is supported on the door 13 swingably, moves another distolateral 23b thereby act on pull-out direction by this swing.Just, these handle 11 formations draw high handle 11, and the one side is as hinge.Piezoelectric transducer 15 is arranged on the surperficial 23c with door 13 relative handle body 23, and can detect the vibration that the gripping effect by handle body 23 causes.In Fig. 2 (a), 79 expressions are assemblied in the key cylinder shell on the rear side of handle body 23.

In this embodiment, shown in Fig. 2 (b), piezoelectric transducer 15 is covered by tubulose cover piece 27 via padded coaming 25.Just, cover piece 27 is bonded on handle body 23 and the door 13 facing surfaces 23c.Cable section 29 access doors 13 of the piezoelectric transducer 15 that extends from the distolateral 23b of another of handle body 23 and be connected to control circuit 17.Because piezoelectric transducer 15 is arranged on handle body 23 and the door 13 facing surfaces 23c, so when driver's hand is inserted between door and the handle body 23 and handle body 23 during by finger grip, the driver directly touches the neighbouring part of piezoelectric transducer 15 probably, and the susceptibility that grips action thus can be enhanced.

As shown in Figure 3, piezoelectric transducer 15 by form similar piezoelectric element material 31 with cable of predetermined length, be connected in the disconnection detection resistor 33 of an end of piezoelectric element material 31, the control circuit 17 that is connected in the other end of piezoelectric element material 31, the connector 39 that is connected in the cable 37 of control circuit 17 and is connected in the top of cable 37 constitute.The cable 37 that is connected in control circuit 17 is used for supply line voltage and output detection signal, and connects power supply and communication terminal via the connector 39 that is arranged on the top.

The piezoelectric element material 31 that is used in the piezoelectric transducer 15 has structure shown in Figure 4, and form in the following way, soon the piezoelectric element material of being made by piezoelectric ceramics (composite piezoelectric layer) 45 is coated on around the heart yearn (central electrode) 41, external electrode 43 is set around the piezoelectric element material then, and uses then by PVC (vinyl chloride resin) and wait the covering layer 47 covering outermost circumference of making.Piezoelectric element material 31 has extraordinary flexible and produce output signal in when distortion in response to the distortion acceleration.As piezoelectric ceramics, can adopt sintered powder, perhaps non-lead base piezoelectric ceramics sintered powder of receiving such as niobic acid etc. such as lead titanates or lead zirconate titanate.

In cable shape piezoelectric transducer 15, resin material by the initial development of applicant is used as piezoelectric element material 45, the effective temperature of this resin material can be set to up to 120 ℃ and have thermal resistance, this resin material can use in surpassing 90 ℃ higher temperature scope (120 ℃ or still less), and 90 ℃ be the maximum effective temperature of typical polymerization piezoelectric element material of the prior art (uniaxial tension gathers (vinylidene fluoride)) or piezoelectric element material (the piezoelectric element material that comprises chlorobutadiene and ceramic powder).And piezoelectric element material 45 is made of resin with flexible nature and piezoelectric ceramics, and uses the dangler that is made of coiled type metal center electrode and film shape external electrode, and piezoelectric 45 has the flexibility that is equivalent to normal ethene baseline.

Piezoelectric element material 45 is made of resin-based materials and 10 μ m or littler ceramic powder.Vibration detection characteristic and flexible nature realize by pottery and resin respectively.Piezoelectric element material 45 adopts polyvinyl chloride as resin-based materials, thus can realize high thermal resistance (120 ℃) and can realize being easy to be shaped flexible, and not needing can realize the laterally simple manufacturing step of connection.

The cable shape piezoelectric transducer 15 that adopts this mode to obtain does not have piezoelectric property after piezoelectric element material 45 is just molded.Therefore, the process (polarization process) that makes piezoelectric element material 45 have piezoelectric property must be carried out by the dc high voltage that applies some kV/mm to piezoelectric element material 45.If the little defective such as crack etc. is present in the piezoelectric element material 45, two electrodes are easy to by the discharge that produces at this fault location therefore can not be applied enough polarizing voltages by short circuit so.In the present invention, owing to set up the polarization step of using this uniqueness of auxiliary electrode of the piezoelectric element material 45 that can closely be attached to predetermined length, so can stablize polarization by detecting/avoid this defective, thereby can obtain to surpass tens meters long piezoelectric cable.

Also have, in the piezoelectric cable sensor, coiled type metal center electrode and film shape electrode (the three layer laminate films that are made of aluminium-PETG-aluminium) are used separately as central electrode 41 and external electrode 43.Therefore, the degree of adhesion between piezoelectric element material 45 and the electrode can be guaranteed, and helps the connection of outside spongy lead, therefore can constitute flexible cable shape encapsulating structure.

Central electrode 41 is formed by the copper-silver alloy coil, and external electrode 43 is formed by the three layer laminate films that comprise aluminium-PETG-aluminium, and piezoelectric element material 45 is formed by polyvinyl resin and ceramic powder, and sheath is formed by thermoplastic.Therefore, dielectric constant is 55 relatively, and the quantity of electric charge of generation is 10 to 13C (coulomb)/gf, and the highest effective temperature is 120C.

Above-mentioned piezoelectric element material 31 for example forms by following step manufacturing.At first, the PVC sheets of 40 to 70 percents by volume and piezoelectric ceramics (lead zirconate titanate here) powder is mixed into similar equably by the lift-over method.Composite piezoelectric layer 45 forms by following manner, is about to this sheet and is cut into bead meticulously, uses central electrode 41 these beads of mold pressing continuously then.Then, the process of polarization is by making the periphery of auxiliary electrode contact composite piezoelectric layer 45, applies high pressure then between auxiliary electrode and central electrode 41 and carries out.Then, external electrode 43 twines around composite piezoelectric layer 45.And, covering layer 47 by mold pressing continuously to cover external electrode 43.

Preferably, when ceramic powder was added to polyvinyl chloride, this ceramic powder should be dipped into titanium binding material solution and carry out drying in advance.The surface coverage of ceramic powder has hydrophilic group and is included in hydrophilic group in the titanium binding material by this process.Hydrophilic group prevents the ceramic powder gathering, and hydrophilic group increases the wettable of polyvinyl chloride and ceramic powder.As a result, can be added to up to maximum value equably be in the polyvinyl chloride of 70 percents by volume for a large amount of ceramic powder.Found that above-mentioned identical effect can add the titanium binding material during in roll extrusion and realizes at polyvinyl chloride and ceramic powder, to replace immersing titanium binding material solution.This process is very outstanding at this on the one hand, thereby might not need the immersion process in titanium binding material solution.Adopt this mode, when ceramic powder mixed, polyvinyl chloride had the effect of binding resin.

In situation of the present invention, the single line conductor of being made by copper base metal is used as central electrode 41.Also have, strip shaped electric poles is as external electrode 43, and wherein, the aluminum metal film is attached on the polymer layer, and this strip shaped electric poles twines around composite piezoelectric layer 45.Because by can be in commercial large-scale production at low cost, so kind electrode is preferably as external electrode 43 on PETG with the electrode that constitutes polymer layer with the aluminium adhesion of film.This electrode can be connected in control circuit 17 by for example staking or eyelet.And metal single line coil or metal grid lines can be welded around the aluminium film of external electrode 43, thereby are connected in control circuit 17.Because can use welding, operating efficiency is improved.In this case, avoid the influence of electronic noise in the external environment condition in order to protect piezoelectric element material 31, preferably, external electrode 43 should be wrapped on the periphery of composite piezoelectric layer 45, thereby partly covers mutually.

As covering layer 47, can adopt heat insulation attribute and waterproof attribute all to be better than the elastomeric material of above-mentioned vinyl chloride resin.Preferably, should adopt the flexible elastomeric material that is higher than composite piezoelectric layer 45, thereby composite piezoelectric layer 45 is easy to be out of shape by the thrust that is applied by the contact object.Covering layer should preferably, especially should be chosen in the less elastomeric material of reduction flexible in-30 ℃ to the 85 ℃ scopes by considering the heat insulation and cold-resistant external member that is selected as.As this elastomeric material, for example, can adopt ethylene-propylene rubber (EPDM), chloroprene rubber (CR), butene rubber (IIR), silicon rubber (Si), thermoplastic elastomer etc.Adopt said structure, the minimum curvature of piezoelectric element material 31 can be reduced to 5 millimeters of radiuses, and compares with vinyl chloride and can guarantee heat insulation attribute and waterproof attribute.

As mentioned above, the composite piezoelectric member of piezoelectric element material 31 has the high-temperature durable that flexible and piezoelectric ceramics that polyvinyl chloride has is had.Therefore, can realize following advantage, when high temperature, can not be created in and use the sensitivity that produces in the conventional piezoelectric sensor of polyethylene (vinylidene fluoride) as piezoelectric member to descend, high-temperature durable is good, and because need be in molded step such as the required vulcanisation step of the rubber of EPDM, so production efficiency is improved.

As shown in Figure 5, the On/Off drive unit 51 that is used for the door locking device of On/Off door 13, be arranged at control circuit 17 with the On/Off control device 53 that is used to control this On/Off drive unit 51, whether this circuit is carried out according to the On/Off operation of the output signal detecting gate 13 of piezoelectric element material 31, thereby constitutes keyless entry.

Control circuit 17 has the voltage distribution resistor 55 of the disconnection that is used to detect piezoelectric element material 31, be used for filtering part 57 that predetermined frequency component is passed through from the output signal of piezoelectric element material 31, be used for determining the determining section 59 whether object is touched piezoelectric element material 31 and being used for determining the fault determining section 61 of the open failure of the central electrode 41 of piezoelectric element material 31 and external electrode 43 according to the magnitude of voltage that disconnection detection resistor 33 and voltage distribution resistor 55 produce according to the output signal of filtering part 57.And, thereby being used to connect central electrode 41 and external electrode 43 and control circuit 17 is input to the stimulus part 63 of control circuit 17 with the output signal of piezoelectric element material 31 and is used for determining that from determining section 59 outputs the segment signal output 65 of signal is arranged on control circuit 17 contiguously.Power line and grounding wire also are connected in segment signal output 65.And control circuit 17 has the bypass segment 67 such as electric capacity, shunts high-frequency signal etc. between stimulus part 63 and the segment signal output 65 thereby this part is arranged on.

And, the notifying device 69 that is used for the definite result by light, loudspeaker untill further notice control circuit 17 is arranged on the precalculated position of header board, perhaps Nei Bu precalculated position, the on/off switch 71 that is used for the On/Off door is connected in On/Off control device 53.

And, be provided with the power supply 73 that forms by automobile batteries etc., thereby supply with the energy via control circuit 17.

Filtering part 57 has following filtering characteristic, because the unhelpful signal of generations such as body vibrations can be eliminated from the output signal of piezoelectric element material 31, and when piezoelectric element material 31 be subjected to external force the touching generation promotion pressure and the component of the CF that only produced in the output signal of piezoelectric element material 31 when being out of shape can be separated.The judgement of filtering characteristic can be during travelling by the vibration characteristics of analyzing vehicle body and body vibrations and optimised.

Whole control circuit 17 is by the shielding part electric shield, thereby removes external electric noise.And external electrode 43 is electrically connected on the shielding part of control circuit 17, and piezoelectric element material 31 is also by electric shield.In this case, can measuring high electric field be acted on the I/O part of foregoing circuit by using feedthrough electric capacity, electromagnetic interface filter etc.

Here, Fig. 6 is the related explanatory diagram between processing that operator's door breakdown action and car side control section be shown is moved.Fig. 7 illustrates the flow chart of opening the step of being finished until the lock of door locking device.

In above-mentioned door handle 100, shown in Fig. 6 (a), when operator's hand touching handle body 23, (the piezoelectric element material 31 of the step 11) among Fig. 7 detects (being referred to as " piezoelectric transducer 15 " hereinafter simply) by the car side by the component of acceleration of the vibration of this touching generation.Then, (output signal of the piezoelectric element material 31 of the step 12) among Fig. 7 determined whether to carry out the On/Off operation of door 13, shown in Fig. 6 (b) before control circuit 17 was held with a firm grip according to handle body 23 quilts.Then, before handle body 23 was drawn out, unlocking signal sent out from On/Off control device 53, and shown in Fig. 6 (c), subsequently, the lock of door locking device be unlocked/cut out drive unit 51 opens the (step 13) among Fig. 7.In other words, the pulling out of handle body 23 that be open at of door lock fully finished before, and therefore, even when door 13 is drawn back rapidly, door lock is unlocked.Therefore, after holding door handle, can realize good operation feeling, promptly not produce the sound that click rattles away and also must not wait for preset time.

Fig. 8 illustrates the load that puts on cable shape piezoelectric transducer 15 and the performance plot of sensor output characteristics.The applicant by evidence the relation between the load of piezoelectric transducer 15 and the sensor output, the result is when the bending load shown in Fig. 8 (a) puts on piezoelectric transducer 15, sensor is exported the variation shown in Fig. 8 (b) is shown.

(1) when at time t ₀When not having load to put on piezoelectric transducer 15, sensor output illustrates voltage Va.

(2) when at time t ₁When bending load put on piezoelectric transducer 15 on predetermined direction, sensor output increased to Vb constantly at this, is back to 0 (V) then immediately, and and then was back to Va.

(3) then, when sensor remained on its case of bending, sensor output still illustrated Va.

(4) when piezoelectric transducer 15 at time t ₃When returning back to its initial value, sensor output is decreased to Vc constantly at this, is back to Vd then immediately, and and then is back to Va.

Adopt this mode, because piezoelectric transducer 15 can detect output corresponding to acceleration high sensitive, so this sensor can very accurately detect infinitesimal vibration and with its output.In this case, for example, decision threshold can be set at the load applications time of detecting, and this threshold value comprises the predetermined voltage amplitude, ao V of voltage Va, and can judge to export when sensor and occur load variations when exceeding this decision threshold.

In above-mentioned door handle 100, when operator's finger contact handle body 23, whether the vibration detection that piezoelectric transducer 15 can produce according to touching the On/Off operation of executed door, therefore, does not need piezoelectric transducer 15 itself is fit into handle body 23.Therefore, even the preliminary dimension of the cavity that piezoelectric transducer 15 is inserted does not provide, piezoelectric transducer 15 also can be installed.As a result, the shape of handle body 23 or size can optionally be designed, and focus on simultaneously to grip characteristic and external Design etc., and therefore, the shape of handle body 23 or the design margin of size increase.

And, because the present invention uses the piezoelectric transducer 15 of piezoelectric element material 31 stably to operate under 1mA or littler current sinking, so on the machine burden of battery can by current sinking reduce be reduced, rather than reduce condenser type piezoelectric transducer of the prior art.

According to the door handle 100 of first embodiment, because piezoelectric transducer 15 can be attached to handle 11 as having flexible cable, so the vibration of detection effect on handle 11 in high sensitivity.Therefore, when the operator only touches handle 11, can obtain enough signal output, and touching on the handle 11 bumped also and can be detected.And, because do not need electrode is set from the teeth outwards, so the influence of dust that sensor is difficult to be disturbed, to adhere to, rain, snow etc.In addition, because piezoelectric transducer 15 can the flexible deformation, so can reduce the constraints of assembly space, assembly space also can be reduced.And assembly manipulation can be simplified.

And as shown in Figure 9, when piezoelectric transducer 15 was arranged at handle body 23 inboard, door handle 100 can detect the vibration that the touching by the operator produces in high sensitivity.In this case, for the ease of the assembly manipulation in the handle body 23, piezoelectric transducer 15 can insert the inboards of handle body 23 jointly with padded coamings such as sponge, polyurethane rubber 25, is fixed then.Adopt this mode; because it is inboard and be stamped the shell 75 of handle body 23 that piezoelectric transducer 15 is arranged at handle body 23, thus this sensor can protectedly not be subjected to impact that other materials applies and in operating process by the contact of hand produce in time and the wearing and tearing that increase.This assembling mode is not limited to foregoing, and piezoelectric transducer 15 can stick on the inner wall surface of handle body 23 by cementing agent etc.

And preferably, when piezoelectric transducer 15 was formed on handle body 23 inboard, this sensor should be provided with predetermined length along the inner surface 23d of handle body 23, as shown in Figure 9.Adopt this structure, the vibration that is produced by the holding operation of handle body 23 can more easily be transmitted.

(second embodiment)

Next, will be described hereinafter according to a second embodiment of the present invention door handle.Here, in the following embodiments, identical Reference numeral is attached to as Fig. 1 to identical member shown in Figure 9 or part, here is omitted about their repeat specification.

Figure 10 is the sectional view that door handle according to a second embodiment of the present invention is shown.Figure 11 is the view along the C-C line gained among Figure 10.Figure 12 is the plan view that the variation scheme 1 of second embodiment is shown, and wherein piezoelectric transducer is arranged near the back shaft.Figure 13 is the plan view that the variation scheme 2 of second embodiment is shown, and wherein the top of piezoelectric transducer is inserted into inserting in the hole of handle body.Figure 14 is the plan view that the variation scheme 3 of second embodiment is shown, and wherein handle body is constructed to be integrated in the handle in the door.

Be included in the On/Off operation of door 13 handle body 23 as grip portions according to the door handle 200 of this embodiment, when thereby operator's etc. finger is caught handle body 23 On/Off doors 13 and the moveable part 77 of handle body 23 common mobile predetermined displacements, thereby and the piezoelectric transducer 15 that is used to detect the displacement output signal of telecommunication of moveable part 77.

Piezoelectric transducer 15 is assembled in the car door, makes sensor be out of shape by the displacement of the moveable part 77 that is accompanied by handle body 23 operations.More particularly, as shown in figure 11, the part of cable shape piezoelectric transducer 15 is twined around the periphery of shaft-like moveable part 77, piezoelectric transducer 15 is positioned at by a pair of projection 77a, 77b on the outer surface of moveable part 77, and described projection is set to from the outer surface of moveable part 77 outstanding.When moveable part 77 produces displacement along with operating in of handle body 23 on the direction shown in the arrow 11,, a pair of projection 77a, 77b in piezoelectric transducer 15, produce distortion thereby promoting the outer surface of piezoelectric transducer 15.

In this case, the arm 23e of handle body 23 is connected in reveal via back shaft 21, swings at the direction b that represents as the arrow of Figure 10 thereby this arm extends from the front portion.And key cylinder housing 79 is assemblied in the rear side of handle body 23.Under the situation of present embodiment, moveable part 77 is shaft-like connectors, the outstanding access door 13 of its rear end side from handle body 23, the one end is fixed in handle body 23, the other end is locked by door lock assembly releasedly, and when handle body 23 when the b direction shown in the arrow is pulled out, this end correspondingly slides and produces displacement in a direction shown in the arrow.

Just, in door handle 200, handle 11 has handle body 23, and one end 23a is supported on the door 13 swingably via back shaft 21, and another distolateral 23b moves on pull-out direction by this swinging operation.And piezoelectric transducer 15 is bridged extending between another distolateral 23b of door 13 and handle body 23, thereby detects the vibration that the pull operation by handle body 23 produces.

Therefore, in door handle 200, when operator's finger is placed on the handle body 23 and handle body 23 when being drawn out on the direction b shown in the arrow, the piezoelectric transducer 15 that twines around moveable part 77 receives the promotion pressure of a pair of projection 77a, 77b and by moveable part 77 distortion, this part and handle body 23 are mobile jointly.The output signal of control circuit 17 bases piezoelectric transducer 15 is at that time judged the On/Off operation of whether finishing door, and the operation of On/Off drive unit 51 can be controlled then.

Then, piezoelectric element material 31 stands the distortion of moveable part 77, and this part moves predetermined amounts with handle body 23 is common when the operation of the On/Off of door 13, and piezoelectric transducer 15 detects and whether carries out On/Off and operate then.Compare with condenser type handle operation sensor of the prior art, can not detect mistakenly and the entering of irrelevant object such as door On/Off operation.Therefore, can in response to the slight displacement of the common moveable parts 77 that move of handle body 23, promptly detect the On/Off operation of whether carrying out door by setting high sensitivity.Therefore, even very faintly touch handle body 23 when finger in the operation of the On/Off of door 13, also can positive detection operate to the On/Off of whether carrying out door.

And piezoelectric transducer 15 can output detection signal, unless the composite piezoelectric layer 45 of piezoelectric element material 31 by and the mobility distortion of the handle body 23 common moveable parts 77 that move.Therefore, can prevent to send the noise emissions of generation in surrounding environment by garbage signal.

According to the door handle 200 of second embodiment, a distolateral 23a of handle 11 is supported in door 13 swingably via back shaft 21, and when handle 11 was held and spurs, the distolateral 23b of another of handle body 23 moved on pull-out direction.Therefore, because piezoelectric transducer 15 is bridged extending between another distolateral 23b and door 13, thus be easy to be subjected to tension force and produce distortion at the effect lower piezoelectric sensor 15 of the pull operation of handle body 23, so sensitivity is increased.

And when piezoelectric transducer 15 was out of shape by the displacement generation of the moveable part 77 of cooperating with handle body 23, this sensor can detect the On/Off operation of whether carrying out door.Therefore, do not need piezoelectric transducer 15 itself is fit into handle body 23.Therefore, the cavity that has preliminary dimension and be used to assemble piezoelectric transducer 15 need be set in handle body 23.As a result, can the shape or the size of handle body 23 be designed arbitrarily, grip on characteristic, the external Design etc., therefore increase the design margin of the shape or the size of handle body 23 and lay stress on.

In the On/Off operation of handle body 23, be not limited to the foregoing description with the handle body 23 common moveable parts 77 that produce displacement.For example, can use and handle body 23 common arm 23e or other moveable parts that produce displacement.And the engaged mode that produces the distortion of piezoelectric element material 31 between piezoelectric element material 31 and moveable part 77 is not limited to the foregoing description.In the above-described embodiments, cable shape piezoelectric element sensor 31 is wrapped on the periphery of shaft-like moveable part 77.And piezoelectric element material 31 available lines are fixed to penetrate fully in the moveable part 77.

As the variant scheme 1 of the door handle 200 of present embodiment, as shown in figure 12, handle 11 has handle body 23, and the distolateral 23a of one is supported on the door 13 swingably via back shaft 21, and another distolateral 23b moves on pull-out direction by this swinging operation.And piezoelectric transducer 15 is arranged near the back shaft 21 of handle body 23, thereby detects the vibration by the swinging operation generation of handle body 23.Piezoelectric transducer 15 is fixed on the substrate 81, and on this substrate, the control circuit 17 that is connected in cardinal extremity 15a is arranged in the door 13.And the piezoelectric element material 31 between control circuit 17 and back shaft 21 is fixed in substrate 81 by anchor clamps 83.

According to deformation program 1, because piezoelectric transducer 15 is arranged near the back shaft 21, so when handle body 23 centered on back shaft 21 swings on the b direction shown in the arrow, this piezoelectric transducer 15 in back shaft 21 places bending contacted with back shaft 21.Therefore, the vibration that is produced by this touching can be detected and susceptibility can be enhanced.In this case, because the top 15b of piezoelectric transducer 15 is when remaining in the handle body 23, the vibration that produces when operator's finger touching handle body 23 also can be detected in high sensitivity.

And as deformation program 2, as shown in figure 13, piezoelectric transducer 15 is bridged to extend between a distolateral 23a of door 13 and handle body 23, contacts back shaft 21 simultaneously.Be inserted in the patchhole 85 that is formed in the handle body 23 as free-ended top 15b.In this case, the top 15b of material 31 is remained in the patchhole 85 movably between piezoelectricity.

According to variant scheme 2, when handle body 23 swings, piezoelectric transducer 15 contacts with back shaft 21, and the top 15b of piezoelectric transducer 15 clips the inwall of patchhole 85.Therefore, can in the long distance of piezoelectric transducer 15, detect the operation of handle body 23 with high sensitivity.And, in this door handle,,, therefore can prolong the life-span of piezoelectric transducer 15 in piezoelectric transducer 15 so the fatigue that produces along with the time is difficult to produce because the top 15b of piezoelectric transducer 15 is maintained in the patchhole 85 with as free end.

And as variant scheme 2, as shown in figure 14, the integrated handle of door with handle body 23 can be used as handle 11, and wherein one of handle body distolateral 23a and another distolateral 23b are fixed in door 13.

According to variant scheme 3, because handle body 23 is configured to not have the integrated handle of door of moveable part, so piezoelectric transducer 15 can directly be out of shape by the operation of handle body 23, but handle operation only can be detected by the vibration that is transmitted to handle body 23 by touching.Under the situation of this door handle, time dependent fatigue is difficult to occur in piezoelectric transducer 15, therefore can prolong the life-span of piezoelectric transducer 15.

(the 3rd embodiment)

Next, will be described hereinafter the keyless entry of a third embodiment in accordance with the invention.

Figure 15 is the block diagram that the keyless entry of a third embodiment in accordance with the invention is shown, and wherein (a) illustrates its schematic structure, and figure (b) illustrates its main detailed structure.Figure 16 is the flow chart that the operating procedure in the keyless entry shown in Figure 15 is shown.

Keyless entry 300 comprise the door handle 100,200 described in first and second embodiment and their the variant scheme any one (for example, door handle 100), be installed in the transmitter/receiver 91 of the vehicle side shown in Figure 15 (a) and the transmitter/receiver 93 that the operator carries.Keyless entry 300 is used for opening the lock of door 13 basically when mobile side transmitter/receiver 93 receives the code signal of the password request signal of vehicle side transmitter/receiver 91 transmissions and mobile side transmitter/receiver 93 transmissions of transmitter/receiver 91 receptions of vehicle side then.

The transmitter/receiver 93 of mobile side is constructed with transmission/receiving circuit 95, thereby the radio wave of transmission/reception and vehicle side transmitter/receiver 91 same frequencys, be used to control the control circuit 97 and the power circuit (not shown) of vehicle side transmitter/receiver 91.Control circuit 97 is constructed with CPU (not shown) and permanent memory, be mounted with the program and the password that are used to control CPU in the memory, and this control circuit when receiving the password request code of hereinafter described vehicle side transmitter/receiver 91 transmissions, transmitter/receiver 95 makes transmission/receiving circuit 95 send the password that is loaded in the permanent memory.In this case, the aerial coil (not shown) is arranged at transmission/receiving circuit 95.And, can be used as the power supply of mobile side transmitter/receiver 93 such as the galvanic cell of button cell etc., the energy that the carrier signal that perhaps can use in the aerial coil of mobile side transmitter/receiver 93 transmitter/receiver 91 by vehicle side to send excites.

Vehicle side transmitter/receiver 91 is constructed with and is used to send/receive with the transmission/receiving circuit 99 of the radio wave of mobile side transmitter/receiver 93 same frequencys with as the control circuit 101 of the control section of control transmission/receiving circuit 99.In this case, the aerial coil (not shown) is arranged at transmission/receiving circuit 99.The piezoelectric transducer 15 and the door locking device 103 of door handle 100 are connected in control circuit 101.The vibration that control circuit 101 monitoring are produced by piezoelectric transducer 15 when the operator touches handle 11, and when reformed value exceeds predetermined value, be diverted ON.When control circuit 101 was diverted ON, supply voltage was supplied to vehicle side transmitter/receiver 91 via the electrical relaybox (not shown) from battery.

The control circuit 101 of vehicle side transmitter/receiver 91 is configured to have CPU and permanent memory basically, is mounted with the program and the password that are used to control CPU in memory.More particularly, shown in Figure 15 (b), control circuit 101 is constructed with code signal request unit 105, thereby this device is used to receive the detection signal of piezoelectric transducer 15 makes vehicle side transmitter/receiver 91 send the password request signals, decoding device 107, this device is used for the code signal that vehicle side transmitter/receiver 91 receives is decoded, code signal decision maker 111, be used for judging whether the decryption coded signal is the normal signal that is stored in memory 109 in advance, and lock unlatching indication encryption apparatus 113, this device is used to indicate apparatus for door-opening 103 to open lock when code signal is normal signal.

In keyless entry 300, as shown in figure 16, when the operator touches handle 11 (step 21), this is touched controlled circuit 101 and detects (step 22), and the password request signal sends (step 23) from code signal request unit 105 then.When the control circuit 97 of mobile side transmitter/receiver 93 receives the password request signal (step 24), this control circuit makes password request signal 95 send code signal (step 25).When control circuit 101 receives code signal (step 26), this control circuit makes 107 pairs of code signal deciphering of decryption device, and makes code signal decision maker 111 judge code signal (step 27).When code signal is consistent with the code signal of storage in the memory 109 (step 28), control circuit 101 makes lock open indicating device 113 and sends lock start signal (step 29) to door locking device (103).On the contrary, when inconsistent when code signal between the mutually internally inconsistent and code signal surpasses pre-determined number (step 30), produce warning (step 31).

According to the keyless entry 300 of the 3rd embodiment, can carry out high-sensitivity detection, be difficult for standing the interference that produces owing to electrodes exposed and be assembled into main building block for the less affined door handle 100 in infield.Because 100 of door handles are subjected to the slight touching on the handle 11 can work and do not need to impact, life period is not poor between the moment of handle and moment that switch begins to operate so touch the operator.As a result, the lock that can reduce control circuit 101 after the operator touches handle 101 is significantly opened the indicating device 103 required times of unlatching lock of 113 indication door locking devices, and door locking device 103 can respond to opening the door fast and be unlocked.

(the 4th embodiment)

Next, will be described hereinafter the keyless entry of a fourth embodiment in accordance with the invention.

Figure 17 is the block diagram that the keyless entry of a fourth embodiment in accordance with the invention is shown, and wherein (a) illustrates its schematic structure, and figure (b) illustrates its main detailed structure.Figure 18 is the key-drawing that the signal inputting method of keyless entry shown in Figure 17 is shown.Figure 19 is the flow chart that the operating procedure of keyless entry shown in Figure 17 is shown.Figure 20 is the key-drawing of the association between the detection signal that the pressure that puts on door handle is shown, caused by this pressure and the pulse that obtained by this detection signal.Figure 21 is the flow chart of the step in the code signal identifying that illustrates in the keyless entry shown in Figure 17.Figure 22 is the performance plot of the time conversion of the signal S2 of signal S1 that piezoelectric transducer is shown, perturbation sensor and signal S1-S2.

Keyless entry 400 (for example is included in the door handle 100,200 described in first and second embodiment and their the variant scheme, door handle 100) any one of them, control circuit 121 as the control section shown in Figure 17 (a), be connected in the disturb sensor 123 of control circuit 121, with loudspeaker 125, as building block.In this keyless entry 300, control circuit 121 is used for opening door locking device 103 the operator when patting handle 11 with the pre-determined number of prior record.

Shown in Figure 17 (b), control circuit 121 has code signal input unit 127, thereby this device is used to receive the input that the touching detection signal of piezoelectric transducer 15 is waited for code signal, decoding device 107, this device is used to decipher the code signal from piezoelectric transducer 15 input code signal input units 127, code signal decision maker 111, this device is used for judging whether the code signal by decoding device 107 decodings is the normal signal that is stored in memory 109 in advance, and locking unlatching indicating device 113, this device is used for indication door locking device 193 unlatching locks when code signal is normal signal.

Here, the vibration that produces during the main detecting operation person operating handle 11 of the piezoelectric transducer 15 of door handle 100.When vehicle idling travelled, for example, piezoelectric transducer 15 is the detected value of detection of engine vibration simultaneously also.On the contrary, disturb sensor 123 is arranged at door 13 and handle 11 separated portions, and except the vibration that the touching by the operator causes, the vibration (for example, the above-mentioned vibration of motor) of also main detection effect on door 13.

As shown in figure 18, for example, the action of patting on the handle 11 realizes by knocking handle body 23.Just, by the vibration formation code signal that action produces of patting with the predetermined rhythm.

In this keyless entry 400, as shown in figure 19, when the operator touches handle 11 (step 41), touch controlled circuit 121 and detect, and the password input pattern of code signal input unit 127 is activated (step 42).At this moment, the buzzer of the effect that is activated of password input pattern sends from loudspeaker 125.

When the operator who detects buzzer by pat with to code signal input unit 127 input code signals the time (step 43) with predetermined rhythm, control circuit 121 makes decryption device 107 clear crytpographic key signals, makes code signal decision maker 111 judge code signal (step 44) then.

At this moment, when pressure put on the handle body 23 by the effect of patting, the pressure change signal shown in Figure 20 (a) detected (step 51 of Figure 21) by piezoelectric element material 31.This pressure change signal is handled (step 52 among Figure 21) by control circuit 121, and provides the pressure change detection signal shown in Figure 20 (b).Then, pressure peak detects (step 53 among Figure 21) from this pressure change detection signal.

More particularly, code signal is by setting by the peak strength and the peak intervals of patting the vibrational waveform that action produces with predetermined cadence.When the operator pats handle body 23 pre-determined numbers with predetermined interval, controlled circuit 121 deciphering of this vibrational waveform.Just, the specific rhythm of patting that has only the operator to know constitutes code signal.Amplitude when vibrational waveform | when+Pa|+|-Pa| surpassed predetermined reference level, control circuit 121 was judged the On/Off operation of carrying out door 13, then at time t1 to t8 output pulse signal Lo → Hi as decision signal.Therefore, can finish the identification (step 54 among Figure 21) of code signal.

Then, when code signal is consistent with the code signal in being stored in memory 109 (step 45), control circuit 121 makes lock open indicating device 113 and sends lock start signal (step 46) to door locking device 103.On the contrary, when inconsistent when code signal between the mutually internally inconsistent and code signal is determined with predetermined or more number of times (step 47), send warning (step 48).

And, disturb sensor 123 is set, with detected signal components from the detection signal of piezoelectric element material 31 rather than detection echo signal in keyless entry 400.Use the noise of disturb sensor 123 to eliminate process and in the pressure change signal detection process performed, carry out (process among Figure 21 in the step 51) by control circuit 121.Just, as shown in figure 22, as the vibration S2 that produces by interference with when being detected as vibration S 1 by piezoelectric element material 31 by the vibration that handle operation produces such as idling etc., the vibration S2 that is produced by disturbance is from by deducting the 31 detected vibrations of piezoelectric element material, because thisly detected by the disturb sensor 123 that disturbs the vibration S2 that produces to be set at door 13.As a result, handle operation vibration S3 (S1-S2) occurs, the noise by disturbing generation in this vibration is eliminated, thereby improves the susceptibility of the vibration of handle operation.

Keyless entry 400 according to the 4th embodiment, when the piezoelectric transducer 15 of the door handle 100 that is arranged at door 13 detects the vibration that is produced by the door open operation, control circuit 121 make code signal input unit 127 be in its input wait state, and code signal can by in this input wait state in response to being transfused to by door handle 100 detected vibrations.When the code signal that is produced by inputted vibration was normal signal, lock was opened indicating device 113 indication apparatus for door-opening 103 and is opened lock.Therefore, when having only door handle 100 to be arranged at door 13 the time, do not need vehicle side transmitter/receiver 91 and mobile side transmitter/receiver 93.

(the 5th embodiment)

Next, will be described hereinafter according to a fifth embodiment of the invention door handle.

Figure 23 is the external perspective view that door handle according to a fifth embodiment of the invention is shown.Figure 24 is the flow chart of the step in the code signal identifying in the door handle shown in Figure 23.Figure 25 is the key-drawing of the association between the detection signal that the grip force that puts on door handle is shown, obtained by this grip force and the pulse that obtained by this detection signal.Figure 26 is the key-drawing that comprises the detection frequency of signal extraction frequency band and noise band.

In the door handle 500 according to this embodiment, handle 131 belongs to the gripping type that forms similar round cylinder, circular cylinder or cable.The handle body 133 of operator's holds handle 131 is then by changing gripping pressure or import code signal around rotational handle body 133 to being arranged at inboard piezoelectric element material with predetermined times with predetermined interval.The control circuit 121 similar control circuits that adopt with keyless entry 400 can be used for this door handle 500.Preferably, disturb sensor 123 and loudspeaker 125 also should be connected.

Therefore, in this door handle 500, as shown in figure 24, when operator's holds handle 131, the controlled circuit 121 of the password input pattern of code signal input unit 127 starts.At this moment, represent that the buzzing sound that the password input pattern has been activated sends from loudspeaker 125.

As the operator who hears buzzer during with predetermined rhythm holds handle 131, code signal input unit 127 detected pressures change signal (step 61), and carry out signal and handle (step 62).Just, when exerting pressure shown in Figure 25 (a) detected by piezoelectric element material 31, the pressure change detection signal shown in Figure 25 (b) was detected then.Then, frequency analysis is applied to this pressure change detection signal by control circuit 121 (step 63).

At this moment, control circuit 121 is carried out interference frequency component and is eliminated process (step 64).In this case, be redefined for signal extraction frequency band shown in Figure 26 (for example, about 0.5 to 5.5 hertz) by the frequency that grips the action acquisition, the disturbed sensor 123 of remaining frequency detects as noise band.Therefore, the pressure change detection signal of exporting from control circuit 121 is given as a signal, wherein, is removed from the frequency that is obtained by piezoelectric element material 31 by the frequency in the noise band of disturb sensor 123 acquisitions.

Then, pressure peak detects from this pressure change detection signal.In the preferred embodiment, pressure peak is divided into two threshold values |+Pb|+|-Pb| and |+Pc|+|-Pc| (step 65).

Code signal is according to setting in predetermined peak strength and the peak intervals that grips the vibrational waveform that produces in the rhythm.As operator during with predetermined interval holds handle main body 133 pre-determined numbers, controlled circuit 121 decodings of this vibrational waveform.Just, the specific gripping rhythm that has only the operator to know constitutes code signal.When the amplitude of vibrational waveform was higher than predetermined reference value, control circuit 121 was judged the operation of executed handles 131, and then at the pulse signal Lo → Md of two types of time t1 to t7 outputs and Lo → Hi as decision signal, shown in Figure 25 (c).Therefore, finish the identification (step 66) of code signal.

Then, when code signal was consistent with the code signal in being stored in memory 109, control circuit 121 made lock open indicating device 113 and sends the lock start signal to door locking device 103.On the contrary, during the predetermined or more number of times of the inconsistent appearance when code signal between the mutually internally inconsistent and code signal, send warning (step 48).

According to the door handle 500 of the 5th embodiment, when the operator with predetermined interval holds handle main body 133 predetermined or more times when count, the controlled circuit 121 of this waveform is decoded.When this gripping action was consistent with predetermined action, the lock of door locking device 103 was opened by control circuit 121.Just, the specific gripping rhythm that has only the operator to know constitutes code signal.

And, in this structure, because code signal is by gripping the action input, so the 3rd people except the operator is difficult to visually see the code signal input action.Therefore, the 3rd people can not unlawfully import code signal by intercept operation person's input action.

(the 6th embodiment)

Next, will be described hereinafter according to a sixth embodiment of the invention door handle.

Figure 27 is the external view of door portion that is equipped with the vehicle of door handle according to a sixth embodiment of the invention.Figure 28 is the phantom drawing that door is not closed fully, therefrom can see handle.Figure 29 is the phantom drawing at hatch back door, and door handle is arranged on this door.

In door handle 600, handle 141 (for example is arranged in following position, the side surface 13a of door 13), in this position, handle 141 is hidden in the external surface rear of door 13 when door locking device 103 is closed, and (for example, under the situation that door is not fully closed after door lock is unlocked) appears in handle 141 when door locking device 103 is unlocked.Then, the vibration detecting part (test section) 143 with piezoelectric transducer 15 is hidden in any position of door 13.Can be used as vibration detecting part 143 with the control circuit 121 similar control circuits that are used for keyless entry 400.Preferably, disturb sensor 123 and loudspeaker 125 also should be connected.

According to the door handle 600 of the 6th embodiment, the handle 141 that is used for On/Off door 13 is arranged in for example side surface portion of door 13, therefore is not exposed to external surface under door 13 pent states.When code signal is transfused to the handle 141 that the external surface by door covers by pat vibration detecting part 143 from the external surface of door etc. by this way, piezoelectric transducer 15 detects vibration under the situation that handle 141 is hidden, the controlled circuit 121 of the lock of door locking device 103 is opened then.Therefore, door 13 is opened into half-open position, then door 13 handle 141 complete openings that can be exposed.On the contrary, even code signal position (except the position that vibration detecting part 143 is arranged) by patting door exterior surface etc. is transfused to, vibration detecting part 143 is not because the signal attenuation between propagation periods can normal running yet, and therefore door 13 can not enter its half-open position.Therefore, code signal can be from individual position's input of having only the operator to know.

In the above-described embodiments, illustrated that by example door handle is applied to the situation such as the car door of side door, slide etc.In addition, when door handle according to the present invention (for example, door handle 100) is applied to shown in Figure 29ly when being used for the overhead door 151 of On/Off vehicle rear, this door handle can be realized similar advantage.

And, in the above-described embodiments, illustrated that by example door handle is applied to the situation of car door.In addition, door handle according to the present invention can be used as the entrance gate 161 in the office shown in Figure 30 (a), house, the apartment etc., refrigerator doors 163 shown in Figure 30 (b), oven door 165 shown in Figure 30 (c), automatic door 167 shown in Figure 30 (d), or the lid of the electric cooker shown in Figure 30 (e) 169.In this case, can advantageously improve operation feeling, operating reliability and assembly performance.

In addition, in the above-described embodiments, illustrated by example and to have drawn high the formula handle that the one side is as hinge means.Shown in Figure 31 (a), when this door handle is applied to pull-up handle 171 (its integral grip quilt is to coming up), can realize similar advantage according to door handle of the present invention.In this case, piezoelectric transducer 15 can be assembled in the handle body 173, shown in Figure 31 (b), can be bonded on the door apparent surface of handle body 173, perhaps in the back shaft 175 of contact handle body 173, can be bridged between handle body 173 and door 13, to extend, shown in Figure 31 (c).

(the 7th embodiment)

Next, will be described hereinafter the embodiment that is fitted into car door according to of the present invention On/Off system.

Figure 32 is the block diagram of embodiment, wherein is installed in the car door according to door On/Off system of the present invention and keyless entry.Figure 33 (a) is the schematic structure view when the door latch device part of door when closing, and Figure 33 (b) is the view of release/setting test section that door latch device is shown.Figure 34 (a) is the schematic structure view of the door latch device part when door is opened, and Figure 34 (b) is the view of release/setting test section that door latch device is shown.Figure 35 is the structural view that comprises the unit of piezoelectric element material, the On/Off of the door that it is used to detect.Figure 36 is the structural view of the piezoelectric element material in door unlatching/relational system.Figure 37 is to use the control block diagram of the keyless entry of the door On/Off system that is illustrated among Figure 32.Figure 38 (a) is the view that puts on the bending load of the piezoelectric element material in the On/Off system, and Figure 38 (b) is in response to the performance plot of output valve of this piezoelectric element material of this bending load output.

Have when opening and closing as the door 721 of the end On/Off of fulcrum be used for lock door as the main body 720 of car body so that door 721 can not be by the door locking device of self opening 722.Door 721 is provided with outer door handle 723 and interior door handle 724, thereby thereby the inboard that described handle grips when opening and closing main body 720 On/Off door 721 by hand and is arranged at door 721 door latch device 725 of the door 721 on the latch body 720 releasedly.

Door On/Off system according to a seventh embodiment of the invention has outer door handle 723 and interior door handle 724, door locking device 722, with door latch device 725, as mentioned above, and has a latch release/setting operation device 726, this device with from the outside or inboard applying with the collaborative release/setting door latch device 725 of the operation of On/Off door 721, with latch release/setting signal checkout gear 727, this device is used for the operation of detecting gate breech lock release/setting operation device 726, with main body side control device 728, this device is by the detection signal operation of latch release/setting signal checkout gear 727, thereby when the operation of door On/Off is carried out by normal running person, the opening and closing of control gate locking device 722.

Outer door handle 723 is used for opening in the following manner door 721, and shown in Figure 33 (a), the other end 723b is held and outwards pulling, and this end overcomes elastic force and rotates on the end 723a as fulcrum simultaneously, thus released latch device 725.And interior door handle 724 is used for opening in the following manner door 721, and shown in Figure 33 (a), other end 724b is pulled outwardly moving, and this end overcomes elastic force and rotates on the end 724a as fulcrum simultaneously, thus released latch device 725.

Door latch device 725 comprises U-shaped anchor clamps 729 and the L shaped hook 731 that is fixed in main body 720, this hook be compassingly set at pivotal point 730 vertical rotation of an end and then after for example passing particular point of rotation quick rotation with breech lock and open U-shaped anchor clamps 729.Door latch device 725 is cooperated with the outside operation that is applied by outer door handle 723 or by the inside operation that interior door handle 724 applies and is discharged and the setting lock bolt, thus On/Off door 721.

And, door latch device 725 has outside line 732 and interior lines 733, their end is connected in outer door handle 723 and interior door handle 724, thereby cooperate mutually with the outside or inboard the operation with the door On/Off, for example, be connected in the lever 734 of the other end of outside line 732 and interior lines 733, the other end of the L shaped hook 731 on this lever and the pivotal point 730 is whole to be provided with, and wholely is provided with the cam 735 relative with L shaped hook 731 etc.Door latch device 725 is connected in outer door handle 723 and interior door handle 724 via the latch release/setting operation device 726 of the inboard that is arranged at door 721.

More specifically, shown in Figure 33 (a), door latch device 725 is configured to, when outer door handle 723 is held and is pulled with rotary door in the following cases, promptly door 721 is closed main body 720 and L shaped hook 731 when being latched on the U-shaped anchor clamps 729, around upwards pulling of pivotal point 730, move and discharge from U-shaped anchor clamps 729 by L shaped then hook 731 being directed downwards as shown by arrows via outside line 732 for lever 734, and door 721 can be opened shown in Figure 34 (a) then.

Similarly, same as described above, shown in Figure 33 (a), door latch device 725 is configured to, when interior door handle 724 was held and is pulled with rotary door in the following cases, promptly door 721 was closed main body 720 and L shaped hook 731 when being latched on the U-shaped anchor clamps 729, lever 734 via interior lines 733 around upwards pulling of pivotal point 730, L shaped then hook 731 being directed downwards as shown by arrows moved and discharged from U-shaped anchor clamps 729, and door 721 can be opened shown in Figure 34 (a) then.In this case, outside line 732 and interior lines 733 are configured such that in them one is operated Shi Buhui at another and influences aforesaid operations.

And, shown in Figure 34 (a), door latch device 725 is configured to be held in the following cases and close when pushing door 721 to main body 720 when outer door handle 723, promptly open main body 721 and L shaped hook 731 when U-shaped anchor clamps 729 discharge when door 721, cam 735 contacts with U-shaped anchor clamps 729 and upwards promotes around pivotal point 730 direction as shown by arrows, correspondingly, L shaped hook 731 is latched on the U-shaped anchor clamps 729 when upwards rotating, and door 721 is closed main body 720 shown in Figure 33 (a) then.Certainly, when being held with the door 721 that will be unlocked, interior door handle 724 pushes main body 720 to and when closing, door latch device 725 adopts as above identical operations.When door during from the outside and interior side closure, door latch device 725 is configured to not the operation of outside line 732 and interior lines 733 is impacted.

Latch release/setting signal checkout gear 727 adopts a kind of cable shape piezoelectric element material 736, thereby with sensitivity from the operation of the On/Off of the outside and inboard detecting gate, thereby and this device inboard of being arranged at door 721 adapt to the acceleration that the action by latch release/setting operation device 726 causes.Thereby the operation of these latch release/setting operation device 726 external door handles 723 and interior door handle 724 responds and discharges and setting door latch device 725.

In other words, latch release/setting signal checkout gear 727 is arranged to adapt to the distortion of lever 734, this lever conduct is two positions and constitute latch release/setting operation device 726 from the outside and an inboard common sparing that the On/Off operation is cooperated mutually that applies respectively, described two positions promptly, the latch off-position, this position comprises that the centre position is with released latch device 725 (position shown in Figure 34 (b)), with the latch desired location, this position comprises the centre position with setting door latch device 725 (position shown in Figure 33 (b)), and produces the signal of telecommunication.

Then, latch release/setting signal checkout gear 727 is arranged to make a plurality of sweep 736a that are applied with tension force to set in advance in piezoelectric element material 736, thereby further improve the sensitivity of the release/setting of door latch device 725, and each sweep 736a be arranged in the operation that is included in door latch device 725 in the middle of the latch desired location (position shown in Figure 33 (b)) of intermediate settings in the latch off-position (position shown in Figure 34 (b)) that discharges and the operation that is included in door latch device 725, thereby hold the distortion of lever 734.Anchor clamps 737 hold piezoelectric element material 736 and the sure distortion of accepting lever 734.

As shown in figure 35, latch release/setting signal checkout gear 727 constitutes a unit, comprise cable shape piezoelectric element material 736 with predetermined length, be connected in the disconnection detection resistor 738 of piezoelectric element material 736 1 ends, be connected in the door release/breech lock decision maker 739 of the other end of piezoelectric element material 736, be connected in a cable of release/breech lock decision maker 739 740 and be connected in the connector 741 on the top of cable 740.

Be connected in a cable of release/breech lock decision maker 739 740 and be arranged to supply line voltage and output detection signal, and connect power supply and communication terminal via the connector 741 that is arranged at its top.

The cable shape piezoelectric element material 736 that is used for latch release/setting signal checkout gear 727 has structure shown in Figure 36, and comprise the central electrode 742 that is arranged in the axial centre part, the piezoelectric element material of making by the piezoelectric ceramics of the periphery that covers central electrode 742 743, be arranged in the external electrode 744 on the periphery of piezoelectric element material 743 and make to cover the covering layer 745 of most peripheral by vinyl chloride resin.

This cable shape piezoelectric element material 736 have extraordinary flexible and between deformation phases in response to distortion acceleration and produce output signal.As the piezoelectric ceramics of piezoelectric element material 743, can adopt such as the sintered powder of lead titanates or lead zirconate titanate or such as non-lead base piezoelectric ceramics sintered powder of sodium nitrate etc.

And, in piezoelectric element material 736, resin material by the initial development of applicant is used as piezoelectric element material 743, the effective temperature of this resin material can be set to up to 120 ℃ and have thermal resistance, this resin material can use in surpassing 90 ℃ higher temperature scope (120 ℃ or still less), and 90 ℃ be the maximum effective temperature of typical polymerization piezoelectric element material of the prior art (uniaxial tension gathers (vinylidene fluoride)) or piezoelectric element material (the piezoelectric element material that comprises chlorobutadiene and ceramic powder).And, piezoelectric element material 45 is made of resin with flexible nature and piezoelectric ceramics, and use the dangler that is made of coiled type metal center electrode 742 and film shape external electrode 744, piezoelectric 743 has the flexibility that is equivalent to normal ethene baseline.

Piezoelectric element material 743 is made of resin-based materials and 10 μ m or littler ceramic powder.Vibration detection characteristic and flexible nature realize by pottery and resin respectively.Piezoelectric element material 743 by the initial development of applicant adopts polyvinyl chloride as resin-based materials, thus can realize high thermal resistance (120 ℃) and be easy to be shaped flexible, and not needing can realize the laterally simple manufacturing step of connection.

The cable shape piezoelectric transducer 736 that adopts this mode to obtain does not have piezoelectric property after piezoelectric element material 743 is just molded.Therefore, the process (establishing the process of polarity) that makes piezoelectric element material 743 have piezoelectric property must be carried out by the dc high voltage that applies some kV/mm to piezoelectric element material 743.

If the little defective such as crack etc. is present in the piezoelectric element material 45, two electrodes are easy to by the discharge that produces at this fault location therefore can not be applied the voltage of enough establishment polarity by short circuit so.In the present invention, owing to set up the polarization step of using this uniqueness of auxiliary electrode of the piezoelectric element material 743 that can closely be attached to predetermined length, so can stablize the realization polarization by detecting/avoid this defective, thereby can obtain to surpass tens meters long piezoelectric cables.

Also have, in piezoelectric element material 736, coiled type metal center electrode and film shape electrode (the three layer laminate films that are made of aluminium-PETG-aluminium) are used separately as central electrode 742 and external electrode 744.Therefore, the degree of adhesion between piezoelectric element material 743 and the electrode can be guaranteed, and helps the connection of outside spongy lead, therefore can constitute flexible cable shape encapsulating structure.

Central electrode 742 is formed by the copper-silver alloy coil, external electrode 744 is formed by the three layer laminate films that comprise aluminium-PETG-aluminium (aluminum-polyethylene terephthalated-aluminum), piezoelectric element material 743 is formed by polyvinyl resin and ceramic powder, and sheath 745 is formed by thermoplastic.Therefore, dielectric constant is 55 relatively, and the quantity of electric charge of generation is 10 to 13C (coulomb)/gf, and maximum effective temperature is 120 ℃.

Above-mentioned piezoelectric element material 736 for example forms by following step manufacturing.At first, the PVC sheets of 40 to 70 percents by volume and piezoelectric ceramics (lead zirconate titanate here) powder is mixed into similar equably by the lift-over method.Piezoelectric element material 743 forms by following manner, is about to this sheet and is cut into bead subtly, uses central electrode 742 these beads of mold pressing continuously then.Then, polarization process comprises the periphery that makes auxiliary electrode contact piezoelectric element material 743, applies high pressure then between auxiliary electrode and central electrode 742.Then, external electrode 744 twines around composite piezoelectric layer 743.And, covering layer 745 by mold pressing continuously to cover external electrode 744.

Preferably, when ceramic powder was added to polyvinyl chloride, this ceramic powder should be dipped into titanium binding material solution and carry out drying in advance.The surface coverage of ceramic powder has hydrophilic group and is included in hydrophilic group in the titanium binding material by this process.

Hydrophilic group prevents the ceramic powder gathering, and hydrophilic group increases the wettable of polyvinyl chloride and ceramic powder.As a result, a large amount of ceramic powder can be added in the polyvinyl chloride up to maximum value 70 percents by volume equably.Found that above-mentioned identical effect can add the titanium binding material during by roll extrusion and realizes at polyvinyl chloride and ceramic powder, to replace immersing titanium binding material solution.This process is very outstanding at this on the one hand, thereby might not need the immersion process in titanium binding material solution.Adopt this mode, when ceramic powder mixed, polyvinyl chloride had the effect of binding resin.

In situation of the present invention, the single line conductor of being made by copper base metal is used as central electrode 742.Also have, strip shaped electric poles is as external electrode 747, and wherein, the aluminum metal film is attached on the polymer layer, and this strip shaped electric poles twines around piezoelectric element material 743.Because by can be in commercial large-scale production at low cost, so kind electrode is preferably as external electrode 744 on PETG with the electrode that constitutes polymer layer with the aluminium adhesion of film.This electrode can be connected in a release/breech lock decision maker 739 by for example staking or eyelet.

And metal single line coil or metal grid lines can be welded around the aluminium film of external electrode 744, thereby are connected in a release/breech lock decision maker 739.Because can use welding, operating efficiency is improved.

In this case, avoid the influence of electronic noise in the external environment condition in order to protect piezoelectric element material 736, preferably, external electrode 744 should be wrapped on the periphery of piezoelectric element material 743, thereby partly covers mutually.As covering layer 745, can adopt heat insulation attribute and waterproof attribute all to be better than the elastomeric material of above-mentioned vinyl chloride resin.Preferably, should adopt the flexible elastomeric material that is higher than piezoelectric element material 743, thereby piezoelectric element material 743 is easy to be out of shape by the thrust that is applied by the contact object.Covering layer should preferably, especially should be chosen in the less elastomeric material of reduction flexible in-30 ℃ to the 85 ℃ scopes by considering the heat insulation and cold-resistant external member that is selected as.As this elastomeric material, for example, can adopt ethylene-propylene rubber (EPDM), chloroprene rubber (CR), butene rubber (IIR), silicon rubber (Si), thermoplastic elastomer etc.Adopt said structure, the minimum curvature of piezoelectric element material 733 can be reduced to 5 millimeters of radiuses, and compares with vinyl chloride and can guarantee fabulous heat insulation attribute and waterproof attribute.

As mentioned above, the piezoelectric element material 743 of piezoelectric element material 736 has the high-temperature durable that flexible and piezoelectric ceramics that polyvinyl chloride has is had.Therefore, can realize following advantage, when high temperature, can not be created in and use the sensitivity that produces in poly-(vinylidene fluoride) conventional piezoelectric sensor to descend as piezoelectric member, high-temperature durable is good, and because need be in molded step such as the required vulcanisation step of the rubber of EPDM, so production efficiency is improved.

As mentioned above, latch release/setting signal checkout gear 727 is arranged on the periphery of lever 734, make the piezoelectric element material 743 of piezoelectric element material 736 be out of shape, also have the On/Off operation of outer door handle 723 and interior door handle 724 simultaneously by the vertical displacement of latch release/setting operation device 726.Then, produce the outer surface and the generation distortion in piezoelectric element material 743 of the lever 734 promotion piezoelectric element materials 736 of displacement.

Be connected in piezoelectric element material 736 wherein the disconnection detection resistor 738 of an end be connected between the central electrode 742 and external electrode 744 of piezoelectric element material 736, and also as discharge portion, the electric charge that this partial discharge produces in piezoelectric element material 736 by pyroelectric effect.Therefore, parts are by rationalization (rationalized).

The main body side control device 728 that is used to collect the detection signal of piezoelectric element material 736 comprises the micro computer with CPU and permanent memory, is mounted with the program and its peripheral circuit that are used to control CPU and password in this memory.There is the program of carrying out all control sequences in the control device 728, thereby realizes the operation of door On/Off device.Shown in figure 32, main body side control device 728 comprises a release/breech lock decision maker 739, this device is used to receive the signal of the latch release/setting signal checkout gear 727 of the release of detecting gate locking devicen 725 and setting, main body transmission/receiving system 746, door On/Off operator decision maker 747, with lock On/Off control device 748, and constitute keyless entry.

As shown in figure 37, door release/breech lock decision maker 739 is determined the signal of the release and the setting of detecting gate locking devicen 725 along with the operation of the On/Off of door 721 according to the output signal of piezoelectric 736.Just, door release/breech lock decision maker 739 comprises the voltage grading resistor 749 of the disconnection that is used to detect piezoelectric element material 736, from the output signal of piezoelectric 736, only pass through the filtering part 750 of predetermined frequency component, be used for judging that according to the output signal of filtering part 750 object is to the judgement part 751 of the touching of piezoelectric 736 be used for judging according to the magnitude of voltage that disconnection detection resistor 738 and voltage grading resistor 749 produce the abnormality juding part 752 of the open failure of central electrode 742 and external electrode 744.

And the stimulus part 753 of door releases/breech lock decision maker 739 is connected in a release/breech lock decision maker 739 with central electrode 742 and external electrode 744, thereby with the output signal input of the piezoelectric element material 736 release/breech lock decision maker 739 of entering.And the decision signal of part 751 is judged in segment signal output 754 outputs.Be connected in a power line of release/breech lock decision maker 739 and grounding wire and also be connected in segment signal output 754.And the bypass segment 755 that door release/breech lock decision maker 739 has such as capacitor is shunted high-frequency signal etc. thereby this part is arranged between stimulus part 735 and the segment signal output 754.

Filtering part 750 has following filtering characteristic, because the unhelpful signal of generations such as body vibrations can be eliminated from the output signal of piezoelectric element material 736, and when piezoelectric element material 736 be subjected to external force the touching generation promotion pressure and the component of the CF that only produced in the output signal of piezoelectric element material 736 when being out of shape can be separated.The judgement of filtering characteristic can be during travelling by the vibration characteristics of analyzing vehicle body and body vibrations and optimised.

In order to eliminate the external electrical noise, a whole door release/breech lock decision maker 739 is coated with protecting component and by electric shield.And external electrode 744 is electrically connected on a protecting component of release/breech lock decision maker 739, and piezoelectric element material 736 is also by electric shield.In this case, can measuring high electric field be acted on the I/O part of foregoing circuit by feed through capacitor, electromagnetic interface filter etc. are installed.

As shown in figure 37, door On/Off operator decision maker 747 comprises code signal request unit 757,756 pairs of decision signals of control device that this device is used to ask to be carried by door On/Off operator respond via main body transmission/receiving system 746 transmission code signal request signals, decoding device 759, this device is used to decipher the control device 756 that carried by door On/Off operator via the code signal that moves 758 transmissions of transmissions/receiving system, with code signal decision maker 761, whether this device is judged by the code signal of decoding device 759 decodings consistent with the normal code signal that preestablishes and store in the memory 760.

Then, when the code signal of being judged by code signal decision maker 761 is consistent with normal code signal, the operation of lock On/Off control device 748 control lock On/Off drive units 762, thus open and close door locking device 722.

And, lock On/Off control device 748 also is connected with informing device 763, the predetermined lamp of this device by being arranged on inner header board etc. informed a result of determination of release/breech lock decision maker 739, with manual inside door On/Off operation part 764, thereby this part is used for On/Off door locking device 722 On/Off doors 721.And, be provided with the power supply 765 that the battery by car constitutes, thereby provide power via door release/breech lock decision maker 739 grades.

Above-mentioned keyless entry is operated basically in the following manner, promptly, receive the password request signal that sends by main body side control device 728 when carrying by door On/Off operator as the main body side transmitter/receiver with control device 756 as mobile side transmitter/receiver, main body side control device 728 receives the code signal that is sent out then, and the lock of door 721 is unlocked or On/Off.

The control device 756 that is carried by door On/Off operator has the transmission/receiving system 758 of moving, this device is used to send/receive the radio wave with main body transmission/receiving system 746 same frequencys, is used to control control device (not shown) and the power circuit (not shown) that moves transmission/receiving system 758.The control device 756 that is carried by door On/Off operator has and is used to control the control device (not shown) that moves transmission/receiving system 758, and CPU and wherein being mounted with is used to control the permanent memory of the program of CPU and password.When moving transmissions/receiving system 758 and receive the password request code of code signal request unit 757 of main body side control device 728, the control device 756 that is carried by door On/Off operator makes and moves 758 transmissions of transmission/receiving system and be loaded in password in the permanent memory.In this case, the aerial coil (not shown) is arranged at and moves transmission/receiving system 758.

And, can be used as the power supply of the control device 756 that carries by door On/Off operator such as the galvanic cell of button cell etc., perhaps can use the energy that the aerial coil that moves transmission/receiving system 758, excites by the carrier signal that sends from main body transmission/receiving system 746.

The radio wave of the main body transmission/receiving system 746 transmission/receptions of main body side control device 728 and control device 756 same frequencys that carry by door On/Off operator, and the aerial coil (not shown) is set.As Figure 32 and shown in Figure 37, piezoelectric element material 736 and door locking device 722 as latch release/setting signal checkout gear are connected in main body side control device 728, and wherein this material is by operating the release and the setting of the latch release/setting operation device 726 detecting gate locking devicens 725 of cooperation mutually with the On/Off of door 721.

Main body side control device 728 is by the release and the setting of piezoelectric element material 736 control door locking devicens 725, it produces when normal door On/Off operator carries out the On/Off operation of door 721, and this control device is opened when the change value surpasses predetermined value.Therefore, supply voltage is supplied to main body transmission/receiving system 746 via the relay box (not shown) from battery.Key cylinder 766 is inserted into key (not shown) opening and closing door locking device 722 when rotating what start automobile engine, and this cylinder is arranged near the outer door handle 723 of door 721, shown in figure 32.

Then, will be described hereinafter the operation and the action of door On/Off system with said structure.Shown in Figure 33 (a) and 33 (b), when outer door handle 723 or interior door handle 724 are held and spur and rotate door 721 with open and close main body 720, lever 734 is upwards spurred around pivotal point 730 via outside line 732 or interior lines 733, L shaped then hook 731 moves down as shown by arrows and discharges from U-shaped anchor clamps 729, and door latch device 725 is released, and door 721 is unlocked shown in Figure 34 (a) then.

Then, shown in Figure 34 (b), 736 pairs of levers 734 of piezoelectric element material are released the action of being taked up to locking devicen 725 and respond the generation distortion to detect the release of the door latch device 725 of cooperating with the door open operation, produce the signal of telecommunication then.In the main body side control device 728 of the signal of telecommunication of collecting piezoelectric element material 736, door release/breech lock decision maker 739 detects the release of the door latch device 725 that is caused by the door open operation, and the password request signal sends from code signal request unit 757.

When the control device 756 that is carried by door On/Off operator received the password request signal, this device made and moves transmission/receiving system 758 transmission code signals.When main body side control device 728 receives code signal, this device makes decoding device 759 clear crytpographic key signals, make code signal decision maker 761 judge code signal then, and when code signal is consistent with the code signal in being stored in memory 760, make lock On/Off control device 748 send signal subsequently to lock On/Off drive unit 762.On the contrary, when code signal does not have inconsistent between consistent with each other and the code signal to be judged with predetermined or more number of times, send warning.

Adopt this mode, whether the operation of main body side control device 728 decision gate On/Off is made by normal operator, and when the operator was normal running person, the operation of control lock On/Off drive unit 762 was to open door locking device 722.

And, shown in Figure 34 (a), when thereby outer door handle 723 is held and closes when promoting door 721 to main body 720 and close the door 721 that is used to open main body 720, perhaps when thereby interior door handle 724 is held and closes to main body 720 pulling door 721, cam 735 contacts with U-shaped anchor clamps 729 and it is upwards promoted around pivotal point 730 as shown by arrows, and when upwards rotating, L shaped hook 731 is latched on the U-shaped anchor clamps 729 accordingly, door 721 is closed main body 720 then, shown in Figure 33 (a).

Then, shown in Figure 34 (b), thereby the action that lever 734 is done when piezoelectric element material 736 pair of latches locking devices 725 are set responds and produces the setting that distortion detects the door latch device 725 of cooperating mutually with a shutoff operation, produces the signal of telecommunication then.In the main body side control device 728 of the signal of telecommunication of collecting piezoelectric element material 736, door release/breech lock decision maker 739 decision gates are closed.Then, when door On/Off operator decision maker 747 receives this decision signal, judge whether carry out a shutoff operation by normal running, identical with the mode of door open operation.Then, the action of door On/Off control device 748 control lock On/Off drive units 762, thus when being normal running, the operator closes door locking device 722.

Figure 38 (a) and 38 (b) illustrate to put on as the load of the piezoelectric element material 736 of latch release/setting signal checkout gear 727 and the schematic diagram of signal output characteristics.The applicant by experimental examination the relation between the load of piezoelectric element material 736 and the signal output, its result is that signal output has illustrated the variation when the bending load shown in Figure 38 (a) puts on piezoelectric element material 736 in Figure 38 (b).

(1) when at time t ₀When not having load to put on piezoelectric element material 736, signal output illustrates voltage Va.

(2) when at time t ₁When bending load put on piezoelectric element material 736 on predetermined direction, sensor output increased to Vb constantly at this, directly is back to 0 (V) then, and and then was back to Va.

(3) then, when sensor remained on its case of bending, signal output still illustrated Va.

(4) when piezoelectric element material 736 at time t ₃When returning back to its original state, sensor output is decreased to Vc constantly at this, directly is back to Vd then, and and then is back to Va.

Adopt this mode, because piezoelectric element material 736 can detect output corresponding to acceleration high sensitive, so this sensor can very accurately detect infinitesimal vibration and with its output.In this case, for example, decision threshold can be set at the load applications time of detecting, this threshold value have come from shown in the predetermined voltage amplitude, ao V of voltage Va, and can judge when sensor and export the load variations that occurs when exceeding this decision threshold.

Especially, in of the present invention On/Off system, the action of latch release/setting signal checkout gear 727 opposite house breech lock release/setting operation devices 726 responds to produce signal, this operating means with from the outside or the On/Off operation cooperation mutually of the inboard door 721 that applies, then, when main body side control device 728 receives this signal, the opening and closing of control gate locking device 722.Therefore, the opening and closing of door On/Off operation and door lock operation can be from the outside or inboard the realization, and therefore, carrying out an On/Off operation complexity from the either side of the outside and inboard can be reduced, thereby makes simple to operate.

And, present embodiment is configured to by a latch release/setting signal checkout gear 727 from the outside or inboard detecting gate On/Off operation, therefore, the action of these latch release/setting signal checkout gear 727 opposite house breech lock release/setting operation devices responds producing signal, this operating means with from the outside or the On/Off operation of the inboard door 721 that applies cooperate mutually.Therefore, this latch release/setting signal checkout gear can be applied to detect from the outside or the inboard door On/Off operation of carrying out at large, and can eliminate the variation that the operation of detecting gate On/Off occurs, thereby can carry out stable door On/Off operation.

And in the present embodiment, latch release/setting signal checkout gear 727 is arranged at the position that produces signal by the action of lever 734, as operating the common ground of cooperation mutually from the outside and inboard with the door On/Off respectively.Therefore, though the release of door latch device 725 and setting are operated and are detected in response to the door On/Off from the outside and inboard, latch release/setting signal checkout gear 727 can be set in a position and so install fairly simple.

And in the present embodiment, latch release/setting signal checkout gear 727 is arranged at the inboard of door 721.Therefore, the inboard of door broadens, rather than is held interior and outer door handle inboard with the On/Off door, and the constraint of installing space is reduced, and latch release/setting signal checkout gear 727 can easily assemble.

And, do not need latch release/setting signal checkout gear 727 is installed in the door handle.Therefore, do not need cavity preliminary dimension, that piezoelectric transducer 15 is installed is arranged at door handle.As a result, the shape of door handle or size can at random design, and lay stress on simultaneously on the gripping characteristic, external Design etc. of operation, have therefore increased the design margin of the shape or the size of door handle.

And in the present embodiment, latch release/setting signal checkout gear 727 comprises piezoelectric element material 736, and this piezoelectric element material 736 is arranged to produce distortion in response to the action of latch release/setting operation device 726, and the output signal of telecommunication.Therefore, can improve from the outside or the susceptibility of the inboard door On/Off operation that applies, and be easy to suitably to set the release of door latch device 725 and setting and the time by outer door handle 723 and interior door handle 724 opening and closing door locking devices 722.Therefore, can improve an operability of On/Off operation.

And, compare with the condenser type handle operation sensor of prior art, can not detect mistakenly and the entering of the irrelevant object of door On/Off operation etc.Therefore, thus can promptly detect the On/Off operation of whether having carried out door to responding by susceptibility being made as senior with the common slight displacements that produce the lever 734 of displacements of door latch device 725.Therefore, even in the operation of the On/Off of door 721, make the holding operation of outer door handle 723 and interior door handle 724 slightly, also can detect the On/Off of whether carrying out door certainly and operate.

And piezoelectric element material 743 can output detection signal, unless the piezoelectric element material 743 of piezoelectric element material 736 with the placement property of the common lever 734 that produces displacements of door latch device 725 under produce distortion.Therefore, can prevent to cause environmental emission noise towards periphery by the garbage signal transmission.

And, because using the latch releases/setting signal checkout gear 727 of piezoelectric element material 736 can stably operate under 1 milliampere or littler current sinking, so compare the burden of battery reducing on the machine with condenser type handle operation sensor of the prior art owing to current sinking.

And the engaged mode that produces 736 distortion of piezoelectric element material between piezoelectric element material 736 and the lever 734 is not limited to the foregoing description.

And in the present embodiment, the sweep 736a that is applied with tension force is arranged at piezoelectric element material 736, and these sweeps 736a is arranged to hold the distortion by the action generation of latch release/setting operation device 726.Therefore, be applied with tension force with the sweep 736a of the piezoelectric element material 736 that improves sensitivity by the action of latch releases/setting operation device 726 distortion, from the outside or an inboard On/Off operational sensitivity that applies further strengthened.Be easy to suitably to set the release of door latch device and setting and the time by outer door handle and interior door handle opening and closing door locking device, therefore, can improve an operability of On/Off operation.

And, according to the keyless entry of present embodiment, can carry out highly sensitive detection, be difficult for standing interference that the exposure by electrode causes and the door handle of the few of restrictive condition in installation site assembled as main component parts.Because a door On/Off device can only be operated and not need by the operation of outer door handle 723 and interior door handle 724 and impact, so life period is not poor between the moment that the moment of carrying out the operation of door On/Off and latch release/setting signal checkout gear begin to operate.The result, can reduce after door On/Off operation up to lock On/Off control device 748 indication door locking devices, 722 unlatchings of main body side control device significantly or close the required time, and door locking device 722 can respond and is unlocked and closes the rapid door On/Off.

And in the present embodiment, lever 730 is as common ground, and this part is used to make piezoelectric element material 736 to produce distortion.But cam 735 or L shaped hook 731 can be used, and can produce the parts advantage that is equivalent among the present invention.

And, in the door On/Off device of present embodiment, illustrated that the opening and closing of door locking device 722 are passed through the release of operation of door On/Off and door latch device 725 and set the pattern of execution simultaneously.But an On/Off device can be set, and by this device, only being open at from the outside or under the effect of the inboard door open operation that applies of door locking device carried out simultaneously with the release of door latch device.In this door On/Off device, latch release/setting operation device 726 is replaced by latch releasing operation device, latch release/setting signal checkout gear 727 is replaced by latch release signal checkout gear, door release/breech lock decision maker 739 discharges decision maker by door and replaces, and door On/Off operator decision maker 747 is replaced by door open operation person decision maker.

Then, thereby latch release signal checkout gear opposite house breech lock releasing operation device responds and produces signal, this operating means with cooperate mutually from the outside and the inboard door open operation that applies, when the main body side control device receives this signal, control the unlatching of door locking device then.Therefore, can be from the outside or the inboard unlatching of carrying out door open operation and door lock.So, compared with prior art, from the outside or the complexity of inboard door open operation of carrying out be reduced, thereby processing ease is carried out, and in the door open operation, can produce the advantage that is equivalent among the present invention.

And the door On/Off device that present embodiment has been described is installed in the pattern in the automobile.But the door On/Off device of present embodiment can be used on room, warehouse, industrial refrigerator, ship, aircraft etc., the operator by from the outside or inboard On/Off door come in and go out, have only door from outside On/Off safety.

And, the door On/Off device construction of present embodiment becomes to make piezoelectric element material 736 by lever 730 or cam 735 or the 731 generation distortion of L shaped hook as common ground, to obtain acceleration, they are cooperated mutually with the operation of outer door handle 723 that is used for On/Off door 721 and interior door handle 724.But can be via detecting by piezoelectric element material 736 as the lever 730 of common ground or cam 735 or L shaped hook 731 by drawing or push away or touch vibration that outer door handle 723 and interior door handle 724 produce.

The present invention explains with reference to specific embodiment.But those skilled in the art can carry out various changes and modifications as can be known under the situation that does not deviate from the spirit and scope of the present invention.

The application is based on Japanese patent application No.2003-334874 that submitted on September 26th, 2003 and the Japanese patent application No.2004-255224 that submitted on September 2nd, 2004, and its content is incorporated into this with as a reference.

Practicality

As mentioned above can be by from the outside or the inboard door that applies according to door of the present invention opening/closing device Open operation or the operation of door On/Off are opened or the opening and closing door lock, and the door of being convenient to the user is opened/closed Closed operation, and door opening/closing device of the present invention can be applicable to automobile, room, warehouse, commerce Refrigerator, ship, aircraft and safety box etc.

Claims (24)

1, a kind of door handle that can open the lock of door locking device by the operation of handle, this device is arranged on the door, and has the handle that is used for the On/Off operation, thus the open operation of lock door comprises:

Piezoelectric transducer, this sensor is formed by the piezoelectric element that is assemblied in described handle, and has flexible; And

Control section, this part are used to receive the detection signal of the described piezoelectric transducer that is produced by the touching on the described handle, thereby open the lock of described door locking device.

2, door handle according to claim 1, wherein, described handle has handle body, and one of this main body distolaterally is supported in described door swingably via back shaft, another of this main body is distolateral to be moved on pull-out direction by a distolateral swing, and

Described piezoelectric transducer is arranged on described handle body and the described door facing surfaces, thereby detects the vibration by the holding operation generation of described handle body.

3, door handle according to claim 1, wherein, described handle has handle body, and one of this main body distolaterally is supported in described door swingably via back shaft, another of this main body is distolateral to be moved on pull-out direction by a distolateral swing, and

Described piezoelectric transducer bridge joint between another of described door and described handle body is distolateral, thereby detect the vibration that the pull operation by described handle body produces.

4, door handle according to claim 1, wherein, described handle has handle body, and one of this main body distolaterally is supported in described door swingably via back shaft, another of this main body is distolateral to be moved on pull-out direction by a distolateral swing, and

Described piezoelectric transducer is arranged near the back shaft of described handle body, thereby detects the vibration by the swinging operation generation of described handle body.

5, door handle according to claim 1, wherein, described handle has handle body, and one of this main body distolaterally is supported in described door swingably via back shaft, another of this main body is distolateral to be moved on pull-out direction by a distolateral swing, and

Described piezoelectric transducer bridge joint described door and described handle body one distolateral between, thereby contact described back shaft, and the top of described piezoelectric transducer is inserted into and is formed on the inserting in the hole with as free end of described handle body.

6, door handle according to claim 1, wherein, described handle is and door all-in-one-piece, handle with handle body that described door all is fixed at its two ends.

7, according to each described door handle of claim 2 to 6, wherein, described piezoelectric transducer is arranged on the inboard of described handle body.

8, according to each described door handle of claim 2 to 6, wherein, described piezoelectric transducer is along the inner surface setting of described handle body.

9, according to each described door handle of claim 2 to 6, wherein, when described door locking device was closed, described handle was hidden in the external surface position afterwards of described door, when described door locking device is opened, and the position that described handle is exposed.

10, a kind of keyless entry comprises:

According to each described door handle of claim 1 to 9;

Be installed on the vehicle side transmitter/receiver of vehicle side;

The mobile side transmitter/receiver that carries by the operator;

Control section, this part are used for receiving at described mobile side transmitter/receiver opens door lock when password request signal that described vehicle side transmitter/receiver sends and described then vehicle side transmitter/receiver receive the code signal that described mobile side transmitter/receiver sends;

Wherein, described control section comprises:

The code signal request unit makes described vehicle side transmitter/receiver send described password request signal thereby this device is used to receive the detection signal of described piezoelectric transducer,

Code signal decision maker, this device be used to judge by described vehicle side transmitter/receiver receive and whether the code signal of decoding consistent with predefined normal signal and

Lock is opened indicating device, and this device is used for indicating described door locking device to open described lock when described code signal is consistent with described normal signal.

11, a kind of keyless entry comprises:

According to each described door handle of claim 1 to 9;

Wherein, described control section comprises

Code signal input unit, this device are used to receive the touching detection signal of described piezoelectric transducer, thereby wait for the input of code signal,

Code signal decision maker, this device be used to judge from described piezoelectric transducer import described code signal input unit and decoded code signal whether consistent with predefined normal signal and

Lock is opened indicating device, and this device is used for indicating described door locking device to open described lock when described code signal is consistent with described normal signal.

12, keyless entry according to claim 11, wherein, described code signal is set according to the pat peak strength and the peak intervals of operating the vibrational waveform that produces with predetermined cadence.

13, keyless entry according to claim 11, wherein, the pressure that described code signal produces according to the variation by gripping pressure changes the peak strength and the peak intervals of waveform and sets.

14, according to claim 12 or 13 described keyless entries, also comprise:

Disturb sensor, this sensor are used to detect except as the component of signal the signal of the detection target of the detection signal of described piezoelectric transducer.

15, a kind of On/Off device comprises:

The outer door handle and the interior door handle that in the operation of door On/Off, grip;

Door locking device, this device is used for lock door, thereby door can not be opened from the pent main body of described door;

Door latch device, this device are used for discharging ground from main body described door are carried out breech lock;

Latch releasing operation device, thus this device be used for from the outside or the inboard operation that applies cooperate mutually and discharge the breech lock of described door latch device, thereby open the door;

Latch release signal checkout gear responds and produces signal thereby this device is used for operation to described latch releasing operation device; With

Main body side control device, this device are controlled the unlatching of described door locking device by the detection signal of described latch release signal checkout gear.

16, a kind of On/Off device comprises:

The outer door handle and the interior door handle that in the operation of door On/Off, grip;

Door locking device is used for lock door and is not unlocked;

Door latch device is used for discharging ground from main body described door is carried out breech lock;

Latch release/setting operation device, this device with from the outside or the inboard operation that applies cooperate mutually discharging and to set described door latch device, thereby the described door of On/Off;

Latch release/setting signal checkout gear is used for the operation of described latch release/setting operation device is responded to produce signal; With

The main body side control device is used for controlling by the detection signal of described latch release/setting signal checkout gear the opening and closing of described door locking device.

17, according to claim 15 or 16 described On/Off devices, wherein, described latch release signal checkout gear or described latch release/setting signal checkout gear only detect from the outside or inboard door open operation that applies or the operation of door On/Off.

18, according to each described door On/Off device of claim 15 to 17, wherein, described latch release signal checkout gear or described latch release/setting signal checkout gear are arranged at the position that is produced signal by the action of common ground, the action of described common ground respectively with by described latch releasing operation device from the outside or the inboard door open operation that applies or by described latch releases/setting operation device from the outside or the inboard door On/Off that applies operate mutually and cooperate.

19, according to each described door On/Off device of claim 15 to 18, wherein, described latch release signal checkout gear or latch release/setting signal checkout gear are arranged on an inboard.

20, according to each described door On/Off device of claim 15 to 19, wherein, described latch release signal checkout gear or latch release/setting signal checkout gear are formed by the piezoelectric element material, and described piezoelectric element material produces distortion by the action of described latch releasing operation device or latch release/setting operation device, thus the output signal of telecommunication.

21, door On/Off device according to claim 20, wherein, the sweep that is applied with tension force is arranged at described piezoelectric element material, and described sweep is arranged to hold the distortion by the action generation of described latch releasing operation device or latch release/setting operation device.

22, according to each described keyless entry of claim 15 to 21, wherein, described main body side control device comprises

Main body transmission/receiving system,

The code signal request unit, this device is used to receive the detection signal of described latch release signal checkout gear or latch release/setting signal checkout gear, the control device of asking then to be carried by door On/Off operator sends/receiving system transmission password request signal via described main body

Door On/Off operator decision maker, this device are used to judge that the control device that carries from described door On/Off operator sends and whether the code signal of decoding is consistent with predefined normal signal, and

Lock control device for opening or lock On/Off control device, this device is used for the unlatching or the On/Off of control door locking device when described code signal is normal.

23, a kind of car door that is equipped with keyless entry according to claim 22.

24, a kind of door that is equipped with the building of keyless entry according to claim 22.

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