CN1257069C - Squeeze-resisting safety seat of automobile - Google Patents

Abstract

The present invention relates to an anti-compressing safety chair for a vehicle. A backrest, etc. are arranged on a movable frame which can move backwards. A chair control system which controls a chair by inertia force and electromagnetic force is arranged on the movable frame which is also provided with a front shaft and a rear shaft provided with a bearing. Moreover, the movable frame is arranged on a fixing frame by the bearing, a bearing shaft and nuts, and the fixing frame is fixed on the floor of an operator cabin and provided with an energy absorption board, an energy absorption bearing and two parallel tracks. When a vehicle accident happens, energy absorption components in the chair absorb and convert the kinetic energy of the chair. The chair control system starts to operate by the function of a switch. Thus, the locked chair is released, and under the action of elastic potential energy of safety belts, etc., the chair and a user are moved back to a safety zone together. Therefore, the purposes of squeezing prevention and the protection of drivers and passengers are achieved.

Description

Antisqueezing safe chair of air

Technical field

The present invention relates to automotive seat, particularly a kind of antisqueezing safe chair of air that can make front-row occupant safety.

Background technology

The way of protection front-row occupant had multiplely when at present automobile met accident in the process of moving, and French Reynolds is made cell type with safety lever and absorbed energy, and modal is to install safety strap and safety air bag additional to automobile.If the present perfect words of automotive safety equipment, when having an accident, driver and conductor's injures and deaths should seldom even not have.But according to the statistics made by the departments concerned, the whole world just had a people to die in car accedent in per three minutes now, and China also has people how 120 to be killed in an automobile accident every day! Half is wherein arranged approximately is driver and passenger, has proved absolutely that also there is deficiency in existing automotive safety equipment.The inventor's father Liu Yun recruits through careful and observes, and the major cause that the driver and conductor comes to harm in the discovery accident is: 1, Bian Xing steering wheel assembly, instrument carrier panel, operator's compartment push the driver and conductor and directly damage.2, can not in time carry away operator's compartment, miss rescue time being extruded the wounded.For this reason, he has designed " a kind of driver seat ", and when meeting accident, seat can rearward move together with the people, the injury that the steering wheel assembly, instrument carrier panel etc. of avoiding or reduce distortion causes people's extruding.And applied for patent of invention to Patent Office of the People's Republic of China in 92 years, and oneself is granted, and the patent No. is: 92100620.9, and applied for US Patent, and also having obtained allowance, U.S. Patent number is: US005344204A.

Found in practice afterwards that also there was deficiency in this seat, and invented " the front-seat security personnel of automobile seat " again, and applied for patent of invention on January 22nd, 96 to Patent Office of the People's Republic of China, application number is 96102201.9.

But in experiment how half a year, he has found deficiency again, after my father knows about the method for the problem of determining, with on January 22nd, 96 be priority date, in on November 5th, 96 to be entitled as: " multifunctional safety front row seats in automobile " applied for patent of invention to Patent Office of the People's Republic of China, also obtained approval, the patent No. is: 96112075.4.

Subsequently in carrying out 130,000 kilometers road tests, true car collision experiment, find that " multifunctional safety front row seats in automobile " also exists following defective: the firstth, when test car has just been gone to more than 30,000 kilometer, the track of seat stands covered in dust, greasy dirt, also have corrosion, the track of big 0.03～0.08 millimeter standard of tolerance of aspect ratio bearing can't allow bearing movable.The secondth, because reinforcing prop 6 can not rotate, when the impact force that automobile is subjected to was big, it was stuck with reinforcing prop 6 to adjust plate 5, and seat rail, preceding shaft distortion are not opened and pinned the pinning of seat.The 3rd is seat when being contained on the small passenger car, and track is an impediment to back row passenger.

Summary of the invention

The objective of the invention is to overcome the weak point of prior art, provide a kind of when automobile meets accident, move failure-free antisqueezing safe chair of air more behind seat and the people.

The objective of the invention is to be achieved through the following technical solutions.

Antisqueezing safe chair of air comprises back of seat, adjusts people and bearing circle, instrument carrier panel apart from the device of usefulness, safety strap etc. at ordinary times, seat is by moving part---tressel and fixed part---, and fixed frame is formed, back of seats etc. are installed in tressel top, it is characterized in that: also be equipped with on the tressel: lay bearing, seat control system that circular hole that locking bolt uses, front axle that neck bearing is equipped with in the inboard and rear axle, rear axle outside energy-absorbing are used; Be equipped with on the vertically identical fixed frame with automobile longitudinal: the bearing that energy-absorbing is used on the energy-absorbing plate of horizontal direction (relatively Bao iron plate), the energy-absorbing plate, the buffer strip that the place ahead energy-absorbing is used, place both sides rear energy-absorbing frame, bar up cross-sectional plane that seat uses and be the hole of round rectangle, parallel to each other and rear end and do not have two tracks of shrouding, limit and move the iron plate that distance and reinforcing fixed frame are used behind the seat; Fixed frame is tightened in by spiral nail on the floor of automobile cab, and tressel is placed in two tracks parallel to each other in the fixed frame by front axle, rear axle, nut.

It is above-described that to lay the Circularhole diameter that locking bolt uses littler than the external diameter that is enclosed within the retracing spring on the locking bolt.

The bearing outside diameter that above-described rear axle outside energy-absorbing is used is greater than the external diameter of coaxial inboard neck bearing.

Above-described seat control system comprises: axially identical with automobile longitudinal electromagnetic controller, the locking bolt that manually control is hammered into shape, the pinning seat is used, the derby of control locking bolt, have in the described electromagnetic controller that one one end is connected with manual control hammer, the other end is connected, exposes the movable suction nozzle that coiler part is with pull back spring with derby, the bigger end of locking bolt is with the ladder that retracing spring, the less end of locking bolt have pressing spring to use, and derby is equipped with bearing; Derby one end is connected with movable suction nozzle, the other end has a slotted eye that allows the less end motion of locking bolt use.

Above-described energy-absorbing frame is shaped as: fix a cover plate that the screw of dress energy-absorbing nail usefulness is arranged on an end cross-sectional plane of thin angle bar.

The above cross-sectional plane is arbitrary limit of round rectangle hole cross-sectional plane than the diameter greater than the bigger end of locking bolt.

The height of two tracks parallel to each other is greater than the race diameter that is placed in the forward and backward axle neck bearing in the track in the above-described fixed frame.

The iron plate that above-described tressel top has an energy-absorbing to use, iron plate are equipped with to cooperate with flute profile energy-absorbing frame and are used for the spiral nail of energy-absorbing.

Above-described flute profile energy-absorbing frame is made up of thin channel-section steel and the cover plate that is fixed on thin channel-section steel one end, has on the cover plate to allow the sporting slotted eye of spiral nail of energy-absorbing.

Realize that antisqueezing safe chair of air working process of the present invention is as follows: round rectangle hole, horizontal direction energy-absorbing plate, the place ahead energy-absorbing metal baffle, rear energy-absorbing frame and two tracks parallel to each other are contained in the seat fixed part---in vertically identical with the automobile longitudinal fixed frame, fixed frame is fixed on vertically identical with the automobile longitudinal automobile cab floor.

Seat control system, the circular hole of laying locking bolt, the front axle of being furnished with neck bearing, the rear axle that is equipped with neck bearing and energy-absorbing bearing and backrest etc. are contained in the seat moving part---on the tressel, tressel is placed in two tracks parallel to each other in the fixed frame by bearing axle, nut.

The bigger end of locking bolt stretches into the hole of round rectangle on the fixed frame from the circular hole on the tressel, and the derby that fuses with manual control hammer, movable suction nozzle is sealed locking bolt and promptly locked seat under the effect of movable suction nozzle pull back spring.When automobile met accident, originally the kinetic energy of seat can produce very big destructive effect to track, must can absorb this.Know according to principle of conservation of energy: because the metal baffle that the fixed frame front end has the place ahead energy-absorbing to use has buffer strip between baffle plate and the tressel, they can absorb seat portion and divide kinetic energy and a part of kinetic energy is converted into elastic potential energy.

At ordinary times, the lower surface of tressel front portion is directly to be pressed on the energy-absorbing bearing of fixed frame energy-absorbing plate top (the neck bearing deorbit bottom on the front axle and contact with track top), and rear axle outside energy-absorbing bearing is also pushed down and make seat to stablize by the nail of the energy-absorbing on the energy-absorbing frame of rear.So the load-bearing bearing is: the energy-absorbing bearing of rear axle neck bearing that contacts with the track lower surface and fixed frame top energy-absorbing plate top.

When automobile bumped, because the effect of backrest etc., the tressel rear portion was subjected to drawing on the oblique forward direction, the front portion is subjected to the power that oblique forward direction presses down, and what this moment was stressed is: the energy-absorbing bearing in the rear axle outside and the rear energy-absorbing frame of fixed frame both sides, the nail of the energy-absorbing on the frame.What the front was stressed is: energy-absorbing bearing on the metal baffle of fixed frame front end, the energy-absorbing plate of top, the plate and tressel leading portion.Because tressel is hard more than the energy-absorbing plate on the fixed frame, this moment, energy-absorbing plate etc. can distortion, had absorbed certain kinetic energy of seat and a part of kinetic energy of seat had been changed into the elastic potential energy of energy-absorbing plate.This moment on the front axle bearing deorbit top and contact with the track bottom.In like manner, the rear energy-absorbing frame of fixed frame both sides etc. have absorbed energy by energy-absorbing nail effect also distortion slightly.

When automobile bumps and reach certain intensity, be contained in the automatic contactor work on the automobile, make the electromagnetic controller energising.Simultaneously because inertia, seat can be to preshoot, and the locking bolt round rectangle hole rear wall fixing along with tressel leaves is slightly to reach, and any limit of hole cross-sectional plane is greater than the locking bolt diameter, so hole no longer contacts with locking bolt, seat cannot apply force of inertia to locking bolt.This moment, movable suction nozzle was because have electric current by being subjected to the effect of an electromagnetic force f identical with sense of motion before the auto against (because the axial and automobile of electromagnetic controller is vertically identical) in the coil of electromagnetic controller, again because manually control is hammered into shape, movable suction nozzle, the derby of control locking bolt is to link into an integrated entity, so they can be subjected to the effect of the very big force of inertia f` of sense of motion identical (being the direction of electromagnetic force f) before a direction and the auto against simultaneously, under the identical power effect of this both direction, derbies etc. move axially along electromagnetic controller, allow the slotted eye of the less end motion of locking bolt and the less end of locking bolt to timing on the derby when being displaced to, locking bolt moves under the effect of spring to the outside, has opened seat.

In addition, when automobile bumped, the people can travel forward, and was subjected to stopping after the effect of safety strap.Also be to know according to principle of conservation of energy: the certain deformation of generations such as safety strap, human body and safety strap contact site has also been inhaled can, a part of kinetic energy of people has changed into the elastic potential energy of safety strap etc., when force of inertia reduces to a certain degree, after the elastic force of safety strap can be pushed the people to, promptly the elastic potential energy of safety strap transformed adult's kinetic energy.In like manner, the also motion backward under the metal baffle elastic potential energy effect used of energy-absorbing forwardly of seat this moment makes the relative velocity of people and seat approaching, and descendant still is sitting on the seat, thereby has reached the purpose of anti-extrusion.

The present invention compared with the prior art, substantive distinguishing features and progress that it is outstanding are:

1. the present invention has designed buffer strip, horizontal direction energy-absorbing plate (relatively Bao iron plate), energy-absorbing bearing, energy-absorbing frame, energy-absorbing nail than prior art more on fixed frame; energy-absorbing bearing also is equipped with in the rear axle outside; when automobile meets accident; other gadget distortion such as above-mentioned energy-absorbing part; absorb and transformed many kinetic energy of seat, protected the critical components such as bearing in track, tressel, bearing axle, the track.

, and the electromagnetic controller of prior art axially be vertical with automobile longitudinal, the friction force that can increase activity suction nozzle when inertia is big be subjected to.And electromagnetic controller of the present invention axially is identical with automobile longitudinal, to there be the very big force of inertia of destructive effect to become the power of opening switch, add the electromagnetic force that direction is identical, guaranteed that automobile is when very strong collision takes place, the derby of control locking bolt is bound to locking bolt is discharged, and seat is opened.As seen, the present invention will be that in the car speed limit range, speed was big more during auto against after harmful very big force of inertia was used as the power of opening switch originally, and the easy more seat with pinning becomes self folding seat.Existing technology is then opposite.

3. the track of prior art is afraid of dust, more disagreeable generation greasy dirt and corrosion.And the present invention owing to be provided with the energy-absorbing parts more, adopted orbit altitude greater than the scheme of the bearing outer diameter that in this track, moves (because the effect of energy-absorbing parts is arranged, seat again can bob), so seat rail of the present invention both had been not fearful dust, do not fear greasy dirt and corrosion yet.

4. the present invention adopts force of inertia and electromagnetic force to control locking bolt, the current ratio prior art that needs much smaller.When Automobile Collision Velocity is very big, cause automobile circuit to open circuit or battery damage can not be when electromagnetic controller be powered, the present invention relies on inertia also seat can be opened, and prior art then can not.

5. prior art is that direct utilization activity suction nozzle is as locking bolt, after tested, the electromagnetic controller of prior art fixedly suction nozzle and movable suction nozzle distance during for 10mm suction 11 newton (because the locking bolt stroke reaches 10mm more than just safety) are only arranged, so Automobile Collision Velocity can not be opened seat when (friction force that movable suction nozzle is subjected to is also big) greatly.And the present invention adopts cylinder to unplug the method for locking bolt as the elastic force of locking bolt, spring, advantage is: the elastic force of spring is only relevant with material, line footpath, the heat treatment of spring, very easily improve elastic force, consider bulk factor, still can design to such an extent that the elastic force of spring reaches 1200 newton, actual enough with 160 newton, in the car speed limit range, design-calculated 160 newton's of the present invention elastic force can both unplug locking bolt and discharge seat.

6, the many designs of the present invention have the manual control of using when emergent to hammer into shape.

Description of drawings

Fig. 1 be the present invention propose remove back of seat, cushion, adjust front view and the electrical schematic diagram of people and bearing circle, instrument carrier panel (following accompanying drawing all is to have removed the view of seeing behind these accessories) antisqueezing safe chair of air embodiment 1 after apart from the device of usefulness at ordinary times.

Fig. 2 is the right elevation of chair embodiment 1.

Fig. 3 is the birds-eye view of chair embodiment 1.

Fig. 4 is that chair embodiment 1 is removed seat control system, the antero posterior axis view of tressel later on.

Fig. 5 is the view that chair embodiment 1 is removed the later fixed frame of energy-absorbing frame of fixed frame both sides.

Fig. 6 is the front view after the seat control system of chair embodiment 1 removes decapsidate.

Fig. 7 is the birds-eye view after the seat control system of chair embodiment 1 removes decapsidate.

Fig. 8 is in the chair embodiment 1, and the locking bolt that the pinning seat is used is along the cutaway view of shaft centre line.

Fig. 9 is the view that embodiment 1 loads onto the front axle behind the accessory.

Figure 10 is that chair embodiment 1 is loaded onto front axle behind the accessory along the cutaway view of shaft centre line.

Figure 11 is that chair embodiment 1 is loaded onto rear axle behind the accessory along the cutaway view of shaft centre line.

Figure 12 is the front elevation of chair embodiment 2.

Figure 13 is that embodiment 3 removes behind the fixed frame behind the end-plate, the view of seeing later from seat.

Figure 14 is the view that embodiment 3 sees from the front.

Figure 15 is the birds-eye view of the seat of embodiment 3 when leaving the normal position.

A` manually controls metal baffle B`. buffer strip B. seat tressel C. seat control system D. front axle E. rear axle 2. fixed frames, two proceeds posterolateral energy-absorbing frame F. energy-absorbing frame cover plate G. fixed frame G`.G``. rear end parallel to each other that hammer A. the place ahead energy-absorbing uses and does not have the track of shrouding (back the same function symmetry is arranged and the majority established no longer repeat to enumerate) R. insurance K. automatic contactor S. hand switch W. automotive battery in the accompanying drawing 1

Energy-absorbing frame 3.3`. rear axle energy-absorbing bearing 4.4`. track top, 1. fixed frame rear fixed plate 2`. rear 5. fixed frame upper level direction energy-absorbing plate B. adjustable shelf 7.8. adjust energy-absorbing nail and rear axle energy-absorbing bearing and follow closely the outer screwed pipe 13. of 10. rear axle nut 11.11`. rear axle inner bearings, 12. rear axles apart from the nut 9.9`. energy-absorbing of usefulness and cooperates 12 to adjust the iron plate 15.15`. track bottom that the distance of moving behind the screwed pipe 14. restriction seats in the female rear axle of an end that adjustable shelf rear portion width use and reinforcing fixed frame are used in the accompanying drawing 2

The hole 36.` energy-absorbing bearing axle that energy-absorbing bearing 16. fixed frame front shoe J.J`. losss of weight in the accompanying drawing 3 on the H.H` energy-absorbing plate are used

The screw 17. that C`. fixed seat control system is used in the accompanying drawing 4 is laid the circular hole that circular hole 19. that circular hole 18. that locking bolt uses allows front axle pass allows rear axle pass

20. bar up the hole L. hole rear wall that cross-sectional plane that seat uses is round rectangle in the accompanying drawing 5

The derby 24.24`. derby that the movable suction nozzle pull back springs of the movable suction nozzle 22` of 21. electromagnetic controllers 22. in the accompanying drawing 6 (do not allow during automobile normal running the crumple in coil of movable suction nozzle) 23. control locking bolts are used is the positive spherical bearing 26. of the spherical bearing 25. derbies slotted eye that allows the less end motion of locking bolt use then

Push down the ladder (cross-sectional diameter is bigger than the width of slotted eye 26) of retracing spring 28 usefulness on locking bolt 28. locking bolt retracing springs 29. locking bolts that 27. pinning seats are used in the accompanying drawing 7

The less end of circular hole 30`. locking bolt that 30. locking bolt losss of weight are used in the accompanying drawing 8

Axle bearing before the I.I`. in the accompanying drawing 9

The interior screwed pipe D. front axle of front axle that the outer screwed pipe 45. of the little needle roller 41. front axle neck bearing inner rings of spindle nut 38. front axle pads 39. front axle neck bearing outer rings 40. front axle neck bearings 42. front axle neck bearing needle roller seal rings 43. front axle internal gaskets 44. front axles cooperates adjustment tressel front width to use before the 37.37`. with 44 in the accompanying drawing 10

The little needle roller 54. rear axle neck bearing seal rings of 51. rear axle internal gaskets, 52. rear axle neck bearing outer rings, energy-absorbing bearing outer ring, the energy-absorbing bearing seal ring 50. rear axles outside, outer pad 48. rear axles of the 46.46`. rear axle nut 47. rear axles outside energy-absorbing bearing little needle roller 49. rear axles outside, 53. rear axle neck bearings 55. rear axle neck bearing inner rings 56. back axial adjustment pipe pad sheet E. rear axles in the accompanying drawing 11

Shrouding behind energy-absorbing bearing 59. tracks of 57. embodiment, the 2 rear axles outside in the accompanying drawing 12

The spiral nail and the energy-absorbing frame cover plate of the spiral nail 63.64. of 60.60`. embodiment 3 rear energy-absorbing frame 61.61`. embodiment 3 energy-absorbing frame cover plate 62.62`. embodiment 3 energy-absorbings adjustment energy-absorbing are tightened the nut 66. embodiment 3 tressel energy-absorbing plates that fixed frame is used apart from the nut 65. of usefulness in the accompanying drawing 13

Shrouding behind 59`. embodiment 3 tracks in the accompanying drawing 14

In the accompanying drawing 15 67, allow the slotted eye of spiral nail motion of energy-absorbing on the 67`. embodiment 3 energy-absorbing frame cover plates

The specific embodiment

The contrast accompanying drawing is described in further detail the present invention in conjunction with the embodiments below.

Embodiment 1

At ordinary times, locking bolt 27 bigger ends stretch into hole 20 back on the fixed frame G from the circular hole 17 on the tressel B and are sealed by the derby 23 that fuses with manual control hammer A`, movable suction nozzle 22 and pinned seat.At this moment tressel B front surface contacts with buffer strip B`, and lower surface is pressed on energy-absorbing bearing H, the H` on the fixed frame energy-absorbing plate 5, and the bearing I on the front axle D, I` contact with track top 4,4`, and locking bolt 27 is to contact with hole 20 rear wall L.Trailing portion is: rear axle neck bearing 11,11` are by track bottom 15,15` supporting, and rear axle outside energy-absorbing bearing 3,3` are pushed down by energy-absorbing nail 9,9`.So just guaranteed that seat advances: have baffle plate A to stop by buffer strip B`.Retreat: have the rear wall of hole 20 to stop locking bolt 27.Upwards jump: tressel B front portion has track top 4,4` to block front axle bearing I, I`, and the rear portion has energy-absorbing nail 9,9` to push down rear axle outside energy-absorbing bearing 3,3`.To sinking: tressel B front lower surface has energy-absorbing bearing H, H` to withstand, and there are track bottom 15,15` supporting rear axle neck bearing 11,11` in the rear portion.Guaranteed the stable of seat.

Automobile bumps and when reaching certain intensity, be contained in the automatic contactor action of automotive front end, electromagnetic controller 21 in the seat control system has electric current to pass through, movable suction nozzle 22 can be subjected to coil magnetic field and attract, add movable suction nozzle, manually the inertia of control hammer A`, derby 23 (because they are to fuse) and electromagnetic controller is axially identical with the preceding travel direction of auto against, derby 23 with movable suction nozzle 22 along the coil axial motion.The tressel B that locking bolt 27 is housed by circular hole 17 must be slightly toward reach simultaneously, be the rear wall L that locking bolt 27 has left the hole 20 on the fixed frame, because arbitrary limit of hole 20 cross-sectional planes is greater than the locking bolt diameter, locking bolt no longer contacts with hole 20, and seat has no idea locking bolt 27 is applied force of inertia.When derby 23 moves to slotted eye 26 and the less end 30` of locking bolt to timing, locking bolt 27 is under the effect of spring 28, can move laterally from slotted eye 26 soon, after moving to certain distance, ladder 29 stopped by slotted eye 26 and stop (because of the cross-sectional diameter of ladder bigger than slotted eye width), this moment seat be released.Simultaneously, when automobile bumped, because inertia, tressel B can produce a pressure by the metal plate washer A that buffer strip B` uses energy-absorbing, and this moment, deformation can take place baffle plate A, a part of kinetic energy of seat was converted into the elastic potential energy of baffle plate.

Automobile is when cruising, and the bearing I on the front axle D, I` contact with track top 4,4`, and energy-absorbing nail 9,9` contact with rear axle outside energy-absorbing bearing 3,3`.When automobile bumped, because the effect of back of seat etc., tressel B front portion was to be subjected to a very big power under oblique.And directly with tressel B front lower surface contact owing to the energy-absorbing bearing H, the H` that are installed on the fixed frame energy-absorbing plate 5 this moment, the very big power under oblique in tressel front portion just is applied directly on energy-absorbing bearing H, the H`, because the intensity of tressel is much larger than the energy-absorbing plate 5 of laying energy-absorbing bearing H, H`, so certain deformation can take place energy-absorbing plate 5 grades, they have all absorbed the part kinetic energy of seat.Front axle bearing I, I` deorbit top 4,4` are pressed on track bottom 15, the 15` at this moment.

In like manner, bump moment at automobile, because effects such as back of seat, tressel B rear portion is to be subjected to a power obliquely, and then desire do motion obliquely of rear axle energy-absorbing bearing 3,3` at this moment is owing to pushed down by energy-absorbing nail 9,9`, seat rear axle E (does not still make with high-carbon steel, but also passed through heat treatment) hardness more much bigger than energy-absorbing frame 2,2` etc. again, so the time energy-absorbing frame 2,2` etc. certain deformation also can take place, also absorbed seat part kinetic energy.Rear axle neck bearing 11, the 11` of original load-bearing then are deorbit bottom 15,15` slightly in the said process; so in time, do not stress on the contrary; as seen; in collision process; be sacrificed the energy absorption device on the fixed frame, having protected needs front axle bearing I, I` and the rear axle neck bearing 11, the 11` that move after the collision.

In automobile bumps process, minimizing gradually along with force of inertia, some is absorbed the kinetic energy of seat, a part changes into elastic potential energy, when force of inertia reduces to certain degree, principle of conservation of energy according to system is known: the elastic potential energy of the metal baffle A of fixed frame front end is converted into the kinetic energy of seat, makes the seat can only be with certain speed rearward move (A fixes because of baffle plate).In like manner, when automobile bumps, the people can travel forward with certain speed, but owing to be subjected to the effect of safety strap, to stop after moving to certain distance, this moment safety strap, people and safety strap contact site, certain deformation also can take place in belt anchorage points etc., so also absorbed a part of kinetic energy of people, quite a few kinetic energy of people then is converted into safety strap, the elastic potential energy of people and safety strap contact site, also be along with force of inertia reduces gradually, know according to transformation of energy and conservation law: the elastic potential energy of safety strap transforms adult's kinetic energy, this moment, the people also can only rearward move with certain speed (because safety strap is fixed), and final people still is sitting on the seat.

Be worth pointing out, as long as force of inertia non-vanishing (speed of the original sense of motion of automobile is non-vanishing), the automobile that bumps also can be out of shape and absorb energy, and people and seat be along with force of inertia be reduced to less than the elastic force of safety strap, metal baffle A the time, people and seat begin rearward to move, this moment be exactly the bearing circle equipressure come (because of force of inertia also non-vanishing), be belated action also, so reached anti-extrusion, also can not lag behind and eject locking bolt with the power of spring 28, the true car collision experiment result that the inventor does recently conforms to above-mentioned theory.

When moving behind the seat, when rear axle neck bearing 11,11` deorbit bottom 15,15`, because the external diameter of rear axle outside energy-absorbing bearing 3,3` is bigger than neck bearing 11,11` external diameter, so load-bearing this moment bearing has become rear axle energy-absorbing bearing 3,3`, these two bearings can rearward move on cab floor, have reached the purpose of anti-extrusion.

Embodiment 2

Energy-absorbing bearing 57,58 on the rear axle outside only has energy-absorbing function, and that need after meeting accident to move backward is neck bearing 11,11`, so the external diameter of energy-absorbing bearing 57,58 needn't require the external diameter greater than neck bearing 11,11`, will there be shrouding 59 at the fixed frame rear portion.All the other are identical with embodiment 1.

Embodiment 3

When automobile meets accident, tressel rear portion power obliquely is to act on the rear energy-absorbing frame 60,60` of fixed frame both sides by the energy-absorbing plate on the tressel 66, embodiment 3 energy- absorbings nail 62,62`, because the hardness ratio energy-absorbing plate 66 of tressel B is much bigger, so be energy-absorbing plate 66 distortion such as grade, in like manner also absorbed a part of kinetic energy of seat, so no longer need rear axle outside energy-absorbing bearing 3,3`.Other is identical with embodiment 2, has also protected critical component: front axle bearing I, I, back axle bearing 11,11`, tressel, track, forward and backward axle.All reached and avoided or reduce driver and conductor's be squeezed, be convenient to sue and labour purpose of the wounded.

Claims (9)

1, a kind of antisqueezing safe chair of air, comprise back of seat, adjust people and bearing circle at ordinary times, instrument carrier panel is apart from the device of usefulness, safety strap etc., seat is by moving part---tressel (B) and fixed part---, and fixed frame (G) is formed, back of seats etc. are installed in tressel (B) top, it is characterized in that: also be equipped with on the tressel (B): the circular hole (17) of laying locking bolt (27) usefulness, the inboard is equipped with neck bearing (I) respectively, (I`) (11), front axle (11`) (D) and rear axle (E), the bearing (3) that rear axle outside energy-absorbing is used, (3`), seat control system (C); Be equipped with on the vertically identical fixed frame (G): the energy-absorbing plate that the horizontal direction energy-absorbing is used (5) with automobile longitudinal, the bearing (H) that energy-absorbing plate (5) top energy-absorbing is used, (H`), the buffer strip that the place ahead energy-absorbing is used (B`), place the rear energy-absorbing frame of fixed frame (G) both sides, barring up the cross-sectional plane that seat uses is the hole (20) of round rectangle, parallel to each other and rear end does not have two tracks (G`) of shrouding, (G``), move distance behind the restriction seat and reinforce the iron plate (14) that fixed frame is used, fixed frame (G) is tightened in by spiral nail on the floor of automobile cab, and tressel (B) is by front axle (D), rear axle (E), nut is placed in two tracks (G`) parallel to each other in the fixed frame, (G``) in.

2, antisqueezing safe chair of air according to claim 1 is characterized in that: the diameter of laying the circular hole (17) that locking bolt uses is littler than the external diameter that is enclosed within the locking bolt upper reset spring.

3, antisqueezing safe chair of air according to claim 1 is characterized in that: the bearing (3) that rear axle outside energy-absorbing is used, the external diameter of (3`) are greater than the external diameter of coaxial inboard neck bearing.

4, antisqueezing safe chair of air according to claim 1, it is characterized in that: seat control system (C) comprising: the axial electromagnetic controller (21) identical with automobile longitudinal, manually (A`) hammered in control into shape, pin the locking bolt (27) that seat is used, the derby (23) that the control locking bolt is used, there is one one end to be connected in the described electromagnetic controller with manual control hammer (A`), the other end is connected with derby (23), expose the movable suction nozzle (22) that the electromagnetic controller shell partly is with pull back spring (22`), the bigger end of locking bolt (27) is with retracing spring (28), the less end of locking bolt has the ladder (29) of pushing down retracing spring and using, and bearing (24) is housed on the derby (23), (24`), (25); Derby (23) one ends are connected with movable suction nozzle (22), the other end has a slotted eye (26) that allows the less end activity usefulness of locking bolt.

5, antisqueezing safe chair of air according to claim 1 is characterized in that: rear energy-absorbing frame is shaped as at an end of thin angle bar and fixes a cover plate that the screw of dress energy-absorbing nail (9) usefulness is arranged.

6, antisqueezing safe chair of air according to claim 4 is characterized in that: arbitrary limit of hole (20) cross-sectional plane is than the diameter greater than the bigger end of locking bolt (27).

7, antisqueezing safe chair of air according to claim 1 is characterized in that: the height of two tracks (G`) parallel to each other, (G``) is greater than the race diameter of forward and backward axle neck bearing (I), (I`), (11), (11`) in the fixed frame (G).

8, antisqueezing safe chair of air according to claim 1 is characterized in that: the iron plate (66) that has an energy-absorbing to use on the tressel (B), iron plate two ends have spiral nail (62), (62`) that cooperates flute profile energy-absorbing frame to be used for energy-absorbing.

9, antisqueezing safe chair of air according to claim 8 is characterized in that: flute profile energy-absorbing frame is made up of thin channel-section steel and the cover plate (61) that is fixed on thin channel-section steel one end, and cover plate one end has allows the slotted eye (67) of the movable usefulness of spiral nail (62) of energy-absorbing.

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