CN104842836A - Induction seat headrest structure - Google Patents
Induction seat headrest structure Download PDFInfo
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- CN104842836A CN104842836A CN201510291866.7A CN201510291866A CN104842836A CN 104842836 A CN104842836 A CN 104842836A CN 201510291866 A CN201510291866 A CN 201510291866A CN 104842836 A CN104842836 A CN 104842836A
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- movable part
- headrest
- control module
- headrest movable
- distance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/80—Head-rests
- B60N2/806—Head-rests movable or adjustable
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The invention discloses an induction seat headrest structure comprising a headrest fixing portion, a headrest moving portion, a headrest moving portion drive mechanism, a longitudinal movement triggering switch, a distance detection sensor and a control module. In the instant of the vehicle rear-end collision, a collision sensor of the vehicle outputs a collision signal to the control module, the control module transmits a measurement requiring signal to the distance detection sensor, and the distance detection sensor detects the space between a driver or passenger and the headrest moving portion and returns to the control module; the control module calculates the distance for the headrest moving portion moving forward as required according to the distance detection signal, the headrest moving portion drive mechanism drives the headrest moving portion to move forward by determined distance rapidly, the headrest moving portion moves in place before the head of the driver or passenger moves to the determined position, the support on the head of the driver or passenger is provided during the rear-end collision, and the damage on the neck of the driver or passenger is reduced.
Description
Technical field
The present invention relates to seating art field, particularly one induction head support structure for chair.
Background technology
In order to reduce vehicle knocked into the back time, the probability of passenger's whiplass evil, Europe, the requirement of seat whiplash is both increased in the new car evaluation rubric of China, each OEM, in order to obtain high evaluation in these appraisement systems, proposes the requirement of whiplash high score one after another to automotive seat supplier.The design of various raising seat whiplash performance is also arisen at the historic moment.
According to current for anti-whip design theory, need reduce manikin head and headrest between distance to improve anti-whip performance, but head and headrest between gap too small, the uncomfortable of head can be caused; For this situation, the SAHR design of a lot of seat supplier development, namely at initial position, larger distance is remain, to guarantee the traveling comfort of head, when knocking into the back generation between head and headrest, by some mechanism arrangement, promote headrest reach at short notice, reduce the distance between head and headrest, thus improve the performance of anti-whip; Although this design is propagated its belief on a large scale, but some weak point, mainly
1. the proal stroke of this headrest is certain, can not regulate;
2. in anti-whip test, the build of dummy, seated posture is taken advantage of to be consistent, existing product also just designs for test requirements document, and the distance guaranteeing between head and headrest carries out testing after meeting designing requirement again, but in actual service condition, the build of occupant, take advantage of seated posture to be all different, this will cause the distance between the head of passenger and headrest to be all different, and what gap was large may cause anti-whip hydraulic performance decline;
In addition, the headrest design not having stepless front and back to regulate in current seat design.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of induction head support structure for chair for the deficiency existing for existing chair headrest, to improve the anti-whip performance of chair headrest.
Technical matters to be solved by this invention can be achieved through the following technical solutions:
A kind of induction head support structure for chair, comprising:
Chair headrest, described chair headrest comprises a pillow holder bonding part and a headrest movable part, described pillow holder bonding part is arranged on described back of seat by head rest pole, described headrest movable part is arranged on described pillow holder bonding part and chaufeur or occupant's head are stretched relatively, it is characterized in that, also comprise:
One headrest movable part driver train, described headrest movable part driver train comprises one and is arranged on the drive motor in described pillow holder bonding part, the speed reduction gearing driven by described drive motor, the straight-line motion mechanism that driven by described speed reduction gearing, and described straight-line motion mechanism drives the relative chaufeur of described headrest movable part or occupant's head to carry out fore and aft motion;
One is arranged on the trigger switch that seesaws on described pillow holder bonding part, described in the seesaw signal output part of trigger switch export headrest movable part forward and backward motion drive singal;
One is arranged on the distance detecting sensor on described headrest movable part, and described distance detecting sensor is in order to detect chaufeur or the distance between occupant's head and described headrest movable part, and the signal output part of this distance detecting sensor sends distance detection signal;
One control module, described control module is arranged in described pillow holder bonding part or headrest movable part, first communication port of this control module is connected with the described trigger switch communication that seesaws, headrest the movable part forward and backward motion drive singal that the signal output part receiving the trigger switch that seesaws exports; Second communication port of this control module is connected with the communication port of described distance detecting sensor, sends detect instruction and receive the described distance detection signal sent apart from the signal output part of detecting sensor to described distance detecting sensor; 3rd communication port of this control module is connected with the signal output part of the crash sensor be arranged on vehicle body, receives the collision alarm that the signal output part from crash sensor exports; The drived control end of this control module is connected with the drive motor drived control in described headrest movable part driver train; Described control module is connected with vehicle body power supply, and by described vehicle body Power supply, described vehicle body power supply is also powered to described drive motor, rang sensor by described control module and the described trigger switch that seesaws;
The workflow of whole induction head support structure for chair is as follows:
When chaufeur or occupant press the trigger switch that seesaws, the trigger switch that seesaws sends signal forward or backward, described control module receives this forward or backward after signal, control module sends impulse singla through calculating to described drive motor, described drive motor starts according to received pulse control signal and passes through described speed reduction gearing, straight-line motion mechanism drives described headrest movable part to move forwards or backwards the position of specifying, after headrest movable part arrives at the position of specifying, chaufeur or occupant unclamp the trigger switch that seesaws, the stop motion of headrest movable part,
When vehicle generation rear-end collision moment, the signal output part of the crash sensor on vehicle body exports a collision alarm to described control module, after described control module receives this collision alarm, send to described distance detecting sensor and require measurement signal, after described distance detecting sensor receives and requires detection signal, start to detect chaufeur or the distance between occupant and headrest movable part and distance detection signal described in being formed is transmitted back to described control module, after described control module receives the described distance detection signal that sends over of distance detecting sensor, the distance needing to move forward according to movable part of resting the head on apart from detection signal calculating acquisition also sends impulse singla according to calculated distance to described drive motor, described drive motor starts according to received pulse control signal and passes through described speed reduction gearing, movable part of resting the head on described in straight-line motion mechanism fast driving travels forward the distance of specifying, headrest movable part is put in place before assigned address at the head movement of chaufeur or occupant, bear the support to the head of chaufeur or occupant in the process of knocking into the back, reduce the cervical injuries degree of chaufeur or occupant, after whole action completes, described control module drives described headrest movable part to get back to home position by described speed reduction gearing, straight-line motion mechanism.
In a preferred embodiment of the invention, between described pillow holder bonding part and headrest movable part, be provided with guiding mechanism, described headrest movable part seesaws along described guiding mechanism.
In a preferred embodiment of the invention, described drive motor is the one in high-speed electric expreess locomotive, stepping motor, servomotor.
In a preferred embodiment of the invention, described speed reduction gearing is turbine and worm decelerator or planetary gear reducing mechanism.
In a preferred embodiment of the invention, described straight-line motion mechanism is screw mandrel screw straight-line motion mechanism, worm and gear straight-line motion mechanism or gear rack straight kinematic mechanism.
In a preferred embodiment of the invention, described control module comprises a PMU, one driver element, one central processing unit, one CAN driver element and an I/O unit, the power input of described PMU is connected with described vehicle body power supply, the power output end of described PMU and described driver element, central processing unit connects and to described driver element, central processing unit is powered, described PMU is also powered to CAN driver element and I/O unit by described central processing unit, described central processing unit is connected with described CAN driver element and described I/O unit and passes through described I/O unit and is connected with described driver element, described CAN driver element is connected with the crash sensor on described vehicle body, receive the vehicle body collision alarm from crash sensor, described driver element power to described drive motor and with described drive motor control linkage, described I/O unit is connected apart from detecting sensor, seesaw trigger switch and driver element with described.
In a preferred embodiment of the invention, the described trigger switch that seesaws can be replaced by an inductive switch, described inductive switch is arranged in described headrest movable part, catch described headrest movable part power forward or backward in order to perception chaufeur or occupant with hand and produce headrest movable part forward and backward motion drive singal export described control module to;
The workflow of whole induction head support structure for chair is as follows:
When chaufeur or occupant catch headrest movable part to exert oneself forward or backward with hand, described inductive switch detects described headrest movable part signal send to control module forward or backward, control module receives this forward or backward after signal, impulse singla is sent to described drive motor through calculating, described drive motor starts according to received pulse control signal and passes through described speed reduction gearing, straight-line motion mechanism drives described headrest movable part to move forwards or backwards the position of specifying, after headrest movable part arrives at the position of specifying, the stop motion of headrest movable part,
When vehicle generation rear-end collision moment, the signal output part of the crash sensor on vehicle body exports a collision alarm to described control module, after described control module receives this collision alarm, send to described distance detecting sensor and require measurement signal, after described distance detecting sensor receives and requires detection signal, start to detect chaufeur or the distance between occupant and headrest movable part and distance detection signal described in being formed is transmitted back to described control module, after described control module receives the described distance detection signal that sends over of distance detecting sensor, the distance needing to move forward according to movable part of resting the head on apart from detection signal calculating acquisition also sends impulse singla according to calculated distance to described drive motor, described drive motor starts according to received pulse control signal and passes through described speed reduction gearing, movable part of resting the head on described in straight-line motion mechanism fast driving travels forward the distance of specifying, headrest movable part is put in place before assigned address at the head movement of chaufeur or occupant, bear the support to the head of chaufeur or occupant in the process of knocking into the back, reduce the cervical injuries degree of chaufeur or occupant, after whole action completes, described control module drives described headrest movable part to get back to home position by described speed reduction gearing, straight-line motion mechanism.
In a preferred embodiment of the invention, described distance detecting sensor is an infrared ray rang sensor.
In a preferred embodiment of the invention, described distance detecting sensor is arranged on the midway location of described headrest movable part towards chaufeur or occupant's side.
Owing to have employed technical scheme as above, anti-whip performance of the present invention is greatly improved, and the headrest movable part simultaneously in headrest can realize electrodeless front and back and regulate.
Accompanying drawing explanation
Fig. 1 is the outward appearance schematic rear view that the present invention responds to chair headrest.
Fig. 2 is the outward appearance front schematic view that the present invention responds to chair headrest.
Fig. 3 is the distance detecting sensor scheme of installation that the present invention responds in chair headrest.
Fig. 4 is the distance detecting sensor mounting structure schematic diagram that the present invention responds in chair headrest.
Fig. 5 is the functional block diagram that the present invention responds to the control module in chair headrest.
Fig. 6 is the scheme of installation that the present invention responds to the control module in chair headrest.
Fig. 7 is that the present invention responds to a kind of headrest movable part driving mechanism structure and scheme of installation in chair headrest.
Fig. 8 is that the present invention responds to another kind of headrest movable part driving mechanism structure and scheme of installation in chair headrest.
Fig. 9 is that the headrest movable part that the present invention responds in chair headrest moves diagram of circuit.
Figure 10 is the mobile diagram of circuit of headrest movable part when meeting with collision that the present invention responds in chair headrest.
Detailed description of the invention
See Fig. 1 and Fig. 2, the induction head support structure for chair provided in figure, comprise chair headrest 100, this chair headrest 100 comprises pillow holder bonding part 110 and a headrest movable part 120, pillow holder bonding part 110 is arranged in described back of seat (not shown) by head rest pole 130, headrest movable part 120 is arranged on pillow holder bonding part 110 and chaufeur or occupant's head are stretched relatively, pillow holder bonding part 110 and headrest movable part 120 are all adopted made of plastic, both outsides are all coated with foaming body and surface cover, the mode of coated foaming body and surface cover is all same as the prior art, do not repeat them here.
The feature that the present invention responds to head support structure for chair is, it also comprises a set of headrest movable part driver train, regulates with the stepless front and back realizing headrest movable part 120.
See Fig. 6 to Fig. 8, this headrest movable part driver train comprises one and is arranged on the drive motor 210 in pillow holder bonding part 110, the speed reduction gearing 220 driven by drive motor 210, the straight-line motion mechanism that driven by speed reduction gearing 220, and straight-line motion mechanism drives headrest movable part 120, and chaufeur or occupant's head carry out fore and aft motion relatively.
Drive motor 210 can adopt the one in high-speed electric expreess locomotive, stepping motor, servomotor.Speed reduction gearing 220 is turbine and worm decelerator or planetary gear reducing mechanism.Which kind of adopts as drive motor 210 and speed reduction gearing 220, this can need to select according to client, and drive motor 210 and speed reduction gearing 220 are prior art in addition, do not repeat them here.
Straight-line motion mechanism of the present invention is screw mandrel screw straight-line motion mechanism, worm and gear straight-line motion mechanism or gear rack straight kinematic mechanism, and these straight-line motion mechanisms are prior art, and those skilled in the art know, and therefore repeat no more.Straight-line motion mechanism shown in Fig. 7 is the straight-line motion mechanism shown in worm and gear straight-line motion mechanism 230, Fig. 8 is gear rack straight kinematic mechanism 240.
In order to the stationarity keeping headrest movable part 120 to move, guiding mechanism 300 is provided with between pillow holder bonding part 110 and headrest movable part 120, guiding mechanism 300 can adopt guide pillar and guide sleeve structure form, also can adopt slide rail and slide block structure form, can select arbitrarily to those skilled in the art.
Moving forwards or backwards to control headrest movable part 120, being provided with one seesawing trigger switch 400 in the side of pillow holder bonding part 110, the signal output part of the trigger switch 400 that seesaws exports headrest movable part 120 forward and backward motion drive singal.The trigger switch 400 that seesaws can not certainly be set, only an inductive switch (not shown) is set in headrest movable part 120, inductive switch catch headrest movable part 120 power forward or backward in order to perception chaufeur or occupant with hand and produce headrest movable part 120 forward and backward motion drive singal export.
In order to improve anti-whip performance of the present invention, the present invention is provided with a distance detecting sensor 500 on headrest movable part 120, this distance detecting sensor 500 is an infrared ray rang sensor, in order to detect chaufeur or the distance between occupant's head and headrest movable part 120, the signal output part of this distance detecting sensor 500 sends distance detection signal.
The mounting means of distance detecting sensor 500 is: see Fig. 3 and Fig. 4, resting the head on, the midway location of movable part 120 towards chaufeur or occupant's side 121 has dug a hole 121a, distance detecting sensor 500 is arranged in the 121a of this hole, and such mounting means can not make distance detecting sensor 500 leave over the head of chaufeur or occupant.
Control module 600 of the present invention can be arranged in pillow holder bonding part 110 or headrest movable part 120, see Fig. 6, this control module 600 comprises a PMU 610, one driver element 620, one central processing unit 630, one CAN driver element 640 and an I/O unit 650, the power input of PMU 610 is connected with vehicle body power supply, the power output end of PMU 610 and driver element 620, central processing unit 630 connects and to driver element 620, central processing unit 630 is powered, PMU 610 also powers to CAN driver element 640 and I/O unit 650 by central processing unit 630, central processing unit 630 is connected with CAN driver element 640 and I/O unit 650 and is connected with driver element 620 by I/O unit 650, CAN driver element 640 is connected with the crash sensor on vehicle body, receive the vehicle body collision alarm from crash sensor, driver element 620 power to drive motor 210 and with drive motor 210 control linkage, a communication port of I/O unit 650 is connected with distance detecting sensor 500, power on the one hand distance detecting sensor 500, on the other hand with the communication of distance detecting sensor 500.Second communication port of I/O unit 650 is connected with the trigger switch 400 that seesaws, and trigger switch 400 1 aspect that seesaws controls power supply and the off-position of whole control module, produces forward on the other hand and motion drive singal backward.If seesawed, trigger switch 400 is replaced by an inductive switch, then inductive switch only produces forward and motion drive singal backward.3rd communication port of I/O unit 650 is connected with driver element 620, realizes the communication with driver element 620.
Central processing unit 630 adopts Freescale Freescale MPC5744P.
When the present invention's employing seesaws trigger switch 400, its workflow is as follows:
When chaufeur or occupant press the trigger switch 400 that seesaws, the trigger switch 400 that seesaws sends signal forward or backward, control module 600 receives this forward or backward after signal, control module 600 sends impulse singla through calculating to drive motor 210, drive motor 210 starts according to received pulse control signal and passes through speed reduction gearing 220, straight-line motion mechanism drives headrest movable part 120 to move forwards or backwards the position of specifying, after headrest movable part 120 arrives at the position of specifying, chaufeur or occupant unclamp the trigger switch 400 that seesaws, the stop motion of headrest movable part 120.
See Fig. 9, idiographic flow is as follows:
After beginning, enter power-up initializing step P100, carry out power-up initializing, after power-up initializing, enter the command information step P105 receiving upper computer and send, in the command information step P105 that this reception upper computer sends, if receive the command information of upper computer transmission, then enter into and decoding step P110 is carried out to the instruction of upper computer; If do not receive the command information of upper computer transmission, before returning the command information step P105 receiving upper computer transmission.
Carrying out, in decoding step P110, decoding to the instruction of upper computer to the instruction of upper computer, whether be collision alarm instruction step P115, if be collision alarm instruction, then carry out the flow process shown in Figure 10 if entering into after decoding.Seesaw trigger switch or sense switch order step P125 has been judged whether if not then entering into, dynamic seesaw trigger switch or the input of sense switch order are judged whether, if no, then, before returning the command information step P105 receiving upper computer transmission, if had, enter next step.
If the command information that upper computer sends specifies P300 for headrest movable part moves forward, whether then enter headrest movable part to front position determining step P305, if headrest movable part arrives front position, then enter into and stop drive motor making headrest movable part advancing step P330 until terminate; If headrest movable part does not arrive front position, then enter drive motor and make headrest movable part advancing step P310, drive headrest movable part to move forward.
In headrest movable part movement forward, enter the instruction that moves forward of headrest movable part at any time and whether stop determining step P315, if headrest movable part stops the instruction moving forward, then enter into and stop drive motor making headrest movable part advancing step P330 until terminate; If not, then enter drive motor to continue to make headrest movable part advancing step P320 also extremely rest the head on movable part to front position determining step P325, if headrest movable part arrives front position, then enter into and stop drive motor making headrest movable part advancing step P330 until terminate; If headrest movable part does not arrive front position, then return drive motor and make headrest movable part advancing step P310, drive headrest movable part to move forward.
See Figure 10, if be collision alarm instruction, then enter collision alarm instruction operation step P200, then enter into and judge current whether in real time measuring distance step P205, if desired the range information of chaufeur or occupant's head and headrest movable part centre is obtained, then enter into and obtain the middle range information step P215 of chaufeur or occupant's head and headrest movable part, after obtaining the middle range information of chaufeur or occupant's head and headrest movable part, whether the range information then entering obtained chaufeur or occupant's head and headrest movable part middle is greater than safety distance determining step, if not to be greater than safety distance, then enter step P100, carry out according to the program described in Fig. 9.If be greater than safety distance, then enter into headrest activity and do not move forward instruction step P225 in position, and then the range information step P215 being back to acquisition chaufeur or occupant's head and headrest movable part middle circulates.
If the command information that upper computer sends specifies P400 for headrest movable part is mobile backward, whether then enter headrest movable part to rearmost position determining step P405, if headrest movable part arrives rearmost position, then enter into and stop drive motor making headrest movable part move step P430 backward until terminate; If headrest movable part does not arrive rearmost position, then enter drive motor and make headrest movable part move step P410 backward, drive headrest movable part to move backward.
In headrest movable part backward moving process, whether the instruction entering the movement backward of headrest movable part at any time stops determining step P415, if headrest movable part stops the instruction of movement backward, then enter into and stop drive motor making headrest movable part move step P430 backward until terminate; If not, then entering drive motor continues to make headrest movable part to move step P420 backward and to headrest movable part to rearmost position determining step P425, if headrest movable part arrives rearmost position, then enter into and stop drive motor making headrest movable part move step P430 backward until terminate; If headrest movable part does not arrive rearmost position, then return drive motor and make headrest movable part move step P410 backward, drive headrest movable part to move backward.
When the present invention adopts inductive switch, its workflow is as follows:
When chaufeur or occupant catch headrest movable part 120 to exert oneself forward or backward with hand, inductive switch detects headrest movable part 120 signal send to control module 600 forward or backward, control module 600 receives this forward or backward after signal, impulse singla is sent to drive motor 210 through calculating, drive motor 210 starts according to received pulse control signal and passes through speed reduction gearing 220, straight-line motion mechanism drives headrest movable part 120 to move forwards or backwards the position of specifying, after headrest movable part 120 arrives at the position of specifying, the stop motion of headrest movable part 120.
Claims (9)
1. respond to a head support structure for chair, comprising:
Chair headrest, described chair headrest comprises a pillow holder bonding part and a headrest movable part, described pillow holder bonding part is arranged on described back of seat by head rest pole, described headrest movable part is arranged on described pillow holder bonding part and chaufeur or occupant's head are stretched relatively, it is characterized in that, also comprise:
One headrest movable part driver train, described headrest movable part driver train comprises one and is arranged on the drive motor in described pillow holder bonding part, the speed reduction gearing driven by described drive motor, the straight-line motion mechanism that driven by described speed reduction gearing, and described straight-line motion mechanism drives the relative chaufeur of described headrest movable part or occupant's head to carry out fore and aft motion;
One is arranged on the trigger switch that seesaws on described pillow holder bonding part, described in the seesaw signal output part of trigger switch export headrest movable part forward and backward motion drive singal;
One is arranged on the distance detecting sensor on described headrest movable part, and described distance detecting sensor is in order to detect chaufeur or the distance between occupant's head and described headrest movable part, and the signal output part of this distance detecting sensor sends distance detection signal;
One control module, described control module is arranged in described pillow holder bonding part or headrest movable part, first communication port of this control module is connected with the described trigger switch communication that seesaws, headrest the movable part forward and backward motion drive singal that the signal output part receiving the trigger switch that seesaws exports; Second communication port of this control module is connected with the communication port of described distance detecting sensor, sends detect instruction and receive the described distance detection signal sent apart from the signal output part of detecting sensor to described distance detecting sensor; 3rd communication port of this control module is connected with the signal output part of the crash sensor be arranged on vehicle body, receives the collision alarm that the signal output part from crash sensor exports; The drived control end of this control module is connected with the drive motor drived control in described headrest movable part driver train; Described control module is connected with vehicle body power supply, and by described vehicle body Power supply, described vehicle body power supply is also powered to described drive motor, rang sensor by described control module and the described trigger switch that seesaws;
The workflow of whole induction head support structure for chair is as follows:
When chaufeur or occupant press the trigger switch that seesaws, the trigger switch that seesaws sends signal forward or backward, described control module receives this forward or backward after signal, control module sends impulse singla through calculating to described drive motor, described drive motor starts according to received pulse control signal and passes through described speed reduction gearing, straight-line motion mechanism drives described headrest movable part to move forwards or backwards the position of specifying, after headrest movable part arrives at the position of specifying, chaufeur or occupant unclamp the trigger switch that seesaws, the stop motion of headrest movable part,
When vehicle generation rear-end collision moment, the signal output part of the crash sensor on vehicle body exports a collision alarm to described control module, after described control module receives this collision alarm, send to described distance detecting sensor and require measurement signal, after described distance detecting sensor receives and requires detection signal, start to detect chaufeur or the distance between occupant and headrest movable part and distance detection signal described in being formed is transmitted back to described control module, after described control module receives the described distance detection signal that sends over of distance detecting sensor, the distance needing to move forward according to movable part of resting the head on apart from detection signal calculating acquisition also sends impulse singla according to calculated distance to described drive motor, described drive motor starts according to received pulse control signal and passes through described speed reduction gearing, movable part of resting the head on described in straight-line motion mechanism fast driving travels forward the distance of specifying, headrest movable part is put in place before assigned address at the head movement of chaufeur or occupant, bear the support to the head of chaufeur or occupant in the process of knocking into the back, reduce the cervical injuries degree of chaufeur or occupant, after whole action completes, described control module drives described headrest movable part to get back to home position by described speed reduction gearing, straight-line motion mechanism.
2. a kind of induction head support structure for chair as claimed in claim 1, it is characterized in that, between described pillow holder bonding part and headrest movable part, be provided with guiding mechanism, described headrest movable part seesaws along described guiding mechanism.
3. a kind of induction head support structure for chair as claimed in claim 1, it is characterized in that, described drive motor is the one in high-speed electric expreess locomotive, stepping motor, servomotor.
4. a kind of induction head support structure for chair as claimed in claim 1, it is characterized in that, described speed reduction gearing is turbine and worm decelerator or planetary gear reducing mechanism.
5. a kind of induction head support structure for chair as claimed in claim 1, it is characterized in that, described straight-line motion mechanism is screw mandrel screw straight-line motion mechanism, worm and gear straight-line motion mechanism or gear rack straight kinematic mechanism.
6. a kind of induction head support structure for chair as claimed in claim 1, it is characterized in that, described control module comprises a PMU, one driver element, one central processing unit, one CAN driver element and an I/O unit, the power input of described PMU is connected with described vehicle body power supply, the power output end of described PMU and described driver element, central processing unit connects and to described driver element, central processing unit is powered, described PMU is also powered to CAN driver element and I/O unit by described central processing unit, described central processing unit is connected with described CAN driver element and described I/O unit and passes through described I/O unit and is connected with described driver element, described CAN driver element is connected with the crash sensor on described vehicle body, receive the vehicle body collision alarm from crash sensor, described driver element power to described drive motor and with described drive motor control linkage, described I/O unit is connected apart from detecting sensor, seesaw trigger switch and driver element with described.
7. a kind of induction head support structure for chair as claimed in claim 1, it is characterized in that, the described trigger switch that seesaws can be replaced by an inductive switch, described inductive switch is arranged in described headrest movable part, catch described headrest movable part power forward or backward in order to perception chaufeur or occupant with hand and produce headrest movable part forward and backward motion drive singal export described control module to;
The workflow of whole induction head support structure for chair is as follows:
When chaufeur or occupant catch headrest movable part to exert oneself forward or backward with hand, described inductive switch detects described headrest movable part signal send to control module forward or backward, control module receives this forward or backward after signal, impulse singla is sent to described drive motor through calculating, described drive motor starts according to received pulse control signal and passes through described speed reduction gearing, straight-line motion mechanism drives described headrest movable part to move forwards or backwards the position of specifying, after headrest movable part arrives at the position of specifying, the stop motion of headrest movable part,
When vehicle generation rear-end collision moment, the signal output part of the crash sensor on vehicle body exports a collision alarm to described control module, after described control module receives this collision alarm, send to described distance detecting sensor and require measurement signal, after described distance detecting sensor receives and requires detection signal, start to detect chaufeur or the distance between occupant and headrest movable part and distance detection signal described in being formed is transmitted back to described control module, after described control module receives the described distance detection signal that sends over of distance detecting sensor, the distance needing to move forward according to movable part of resting the head on apart from detection signal calculating acquisition also sends impulse singla according to calculated distance to described drive motor, described drive motor starts according to received pulse control signal and passes through described speed reduction gearing, movable part of resting the head on described in straight-line motion mechanism fast driving travels forward the distance of specifying, headrest movable part is put in place before assigned address at the head movement of chaufeur or occupant, bear the support to the head of chaufeur or occupant in the process of knocking into the back, reduce the cervical injuries degree of chaufeur or occupant, after whole action completes, described control module drives described headrest movable part to get back to home position by described speed reduction gearing, straight-line motion mechanism.
8. the one induction head support structure for chair as described in any one of claim 1 to 7 claim, is characterized in that, described distance detecting sensor is an infrared ray rang sensor.
9. the one induction head support structure for chair as described in any one of claim 1 to 7 claim, is characterized in that, described distance detecting sensor is arranged on the midway location of described headrest movable part towards chaufeur or occupant's side.
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| CN201510291866.7A CN104842836B (en) | 2015-06-01 | 2015-06-01 | A kind of induction head support structure for chair |
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| CN201510291866.7A CN104842836B (en) | 2015-06-01 | 2015-06-01 | A kind of induction head support structure for chair |
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| CN104842836B CN104842836B (en) | 2018-07-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN110843625A (en) * | 2018-08-20 | 2020-02-28 | 温泽机械和制模(2009)有限责任公司 | Four-way electrically actuated headrest with automatic deployment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110843625A (en) * | 2018-08-20 | 2020-02-28 | 温泽机械和制模(2009)有限责任公司 | Four-way electrically actuated headrest with automatic deployment |
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| CN109864862B (en) * | 2019-02-20 | 2020-08-18 | 中国人民解放军陆军军医大学第一附属医院 | Intelligent medical pedal pad |
| CN109910705A (en) * | 2019-03-28 | 2019-06-21 | 长安大学 | A kind of neck-protecting device and neck guard method for motor vehicle |
| CN110949218A (en) * | 2019-12-23 | 2020-04-03 | 北京新能源汽车股份有限公司 | Seat headrest of vehicle and vehicle |
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| Publication number | Publication date |
|---|---|
| CN104842836B (en) | 2018-07-17 |
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Address after: Shanghai City, Pudong New Area Kang Road 201315 Pudong Kangqiao Industrial Zone No. 669 Applicant after: Yanfeng Daotuo Ann seat Co. Address before: Kang Road, Pudong New Area Kangqiao Industrial Zone of Shanghai City, No. 669, 200120 Applicant before: Shanghai Yanfeng Johnson Controls Seating Co., Ltd. |
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Address after: 201315 No. 669 Kang'an Road, Kangqiao Industrial Zone, Pudong New District, Shanghai Patentee after: Yanfeng international Seat System Co.,Ltd. Address before: 201315 No. 669 Kangan Road, Kangqiao Industrial Zone, Pudong New District, Shanghai Patentee before: YANFENG ADIENT SEATING Co.,Ltd. |