JP2003246233A - Shock absorber for protecting human body, baggage in transfer body and the like against rear-end collision of vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a vehicle and a seat, or a transfer body and a baggage, separated in a moment to enable a person's body and the seat, or the baggage, to be received in soft landing upon receiving a collision impact or vibratory impact, so that damage to the person's body due to an accident or to the baggage due to vibration can be reduced. <P>SOLUTION: A vehicle is provided with an impact sensing means, a seat sliding means, and a shock absorbing means relative to the sliding of a seat. According to the vehicle, an impact caused by a rear-end collision is detected by the impact sensing means, which releases a lock on the seat instantly to make the seat slide freely. The free slide of the seat gives an inertial force to the seat and a person's body to make them move, and the sudden stop of their inertial movement by the seat and the seat back is prevented by the shock absorbing means, which receives the person's body together with the seat and the seat back in soft landing. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to reducing impact vibration damage of luggage during transportation, and particularly to reducing seat impact during a vehicle collision. In the following, for simplicity of illustration, a state in which the longitudinal plate (blade) is fitted into the guide groove and sliding along the guide groove is described as a slide, but the slide does not easily come off. In addition, it refers to a seat slider function that is also used for sliding back and forth for sliding seat position adjustment.

[0002]

2. Description of the Related Art As a conventional technique, there is a device in which a cushion function is devised so as to reduce the impact of a collision on a seat.

[0003]

However, when the shock of a vehicle collision, particularly a rear-end collision is large, the cushion function does not substantially function for the whipping of the head or the like only by the cushion function.

[0004] In particular, a driver is in a state of sitting on a seat and leaning against a backrest, and a shock at the time of a rear-end collision causes the knees to the toes to hang down from the seat. It is pushed forward by the front part of the seat and left behind from the knees to the waist, and because it is pushed forward by the back from the waist to the upper part, the head and thighs are left behind, and cervical spine injury in the head, Since the impact of the thigh on the lumbar region causes a complicated lumbar region disorder, complicated measures for avoiding the after-effects caused by the impact at the time of a rear impact are required.

[0005]

In order to solve the above problems, the gist of the present invention is to integrate the seat and the vehicle body
With a double cushion between the seat and the vehicle body, or the vehicle body itself, the momentary separation function at the time of a rear-end collision, the cushioning function of the separated seat and body inertial force, and the collision, seat body separation, seat cushion, and cushioning function , It is intended to reduce as much as possible physical damage such as whipping due to the impact of a rear-end collision.

That is, in the case of a rear-end collision, the seat is momentarily released from the locked state and becomes free, and the seat and body are united and pushed backward by inertial force, but the impact of the rear-end collision is momentarily separated, The double cushion of the seat cushion and the cushioning means absorbs the seat and the body on the backrest softly, and avoids a complicated after-effect which is caused by a shock at the time of a rear-end collision.

[0007] Specifically, in the first example, the seat slide itself is applied to the cushioning function in order to cope with a rear-end collision, and the slide on the basic rail is performed by the seat locking means. Although it is locked, the seat lock means is momentarily released by the rear collision detection means to be slidable, and the slidability is buffered by the buffer means.

More specifically, the seat blade integrated with the seat can slide the seat back and forth on the base rail, and in the seat position adjusting means for seat locking the seat slide by the seat locking means, the seat locking means is locked at the moment of seat locking. The seat blade can be slid on the basic rail by momentarily releasing it by the releasing means, but the shock of the seat slide is cushioned by the rear cushioning means.

In the second example, a double slide function of a seat slide and a base slide is provided to cope with a rear-end collision, and the seat slide allows the seat to slide back and forth on the base rail. In the basic slide, the basic rail can be basic slide back and forth on the free rail, the seat slide has its slide restricted by the seat locking means on the basic rail, and in the basic slide, the basic rail can slide by the basic locking means on the free rail. Is locked, and the lock of the basic lock means is momentarily released by the front-rear collision detection means to enable the basic slide, but the basic slide is buffered by the front-rear buffer means.

More specifically, a free rail is provided below the base rail on which the seat blade is mounted, where the seat slide is seat-locked by the seat locking means, and the base rail slides forward and backward on the free rail. Is possible and yet the foundation slide is locked by the foundation lock by the foundation lock means, the foundation lock means is momentarily released by the foundation lock instant release means, and the foundation rail becomes the foundation slide movable on the free rail, The shock of the basic slide is buffered by the front-back buffering means.

In the third example, a free unit is provided to cope with a rear-end collision, and a free unit is provided in order to float the seat in the air and allow the seat to slide around in any direction. , A support disc that floats in the air and can be slid in any direction is provided, and the base plate that supports the seat and the support disc are connected to realize a state in which the seat floats in the air. Support lock means supports and locks the surrounding slide, and the support lock of the support lock means is momentarily released by the surrounding collision detection means to be slidable around, but the surrounding slidable is buffered by the surrounding buffering means. is there.

In the fourth example, the elasticity is such that it is elastically expanded and contracted and separated by an impact that causes personal injury, so that it is hardly affected by the human power such as pressing the accelerator or the brake. A multi-support unit with fixed parts was installed between the car body and the seat. As the elastic fixing part,
Arrange a large number of springs between the upper and lower flat plates so as not to detach them,
One is integrated with the car body and the other is integrated with the foundation plate.

[0013]

In the shock absorbing device constructed as described above, in the first example, the seat is normally locked by the seat locking means in accordance with the position of the seat by the seat slide. When a rear-end collision occurs, the seat lock is momentarily released by the rear-end collision detection means, and the seat can be slid,
The driver and the seat are pushed rearward by the moment of inertia corresponding to the weight, but the rear shock absorbing means reduces the rearward impact.

In the second example, usually, the seat is locked by the seat lock means in accordance with the position suitable for each person by the seat slide. When a rear-end collision occurs, the front-rear collision detection means unlocks the foundation lock instantly, allowing the foundation to slide, and the driver and seat on the foundation rail move forward and backward with an inertia moment according to their weight. However, the front and rear cushioning means alleviate the impact on the front and rear.

In the third example, the seat is normally locked by the seat slide in accordance with the position suitable for each person, but when a rear-end collision occurs from the surroundings, the supporting lock is momentarily released by the surrounding collision detection means. The driver and seat on the base plate, which is supported and slidable and is connected to the support disc, is pushed to the surroundings by the moment of inertia corresponding to its weight.
The impact on the surroundings is mitigated by the surrounding cushioning means.

In the fourth example, since the vehicle is operated by human power, it does not expand or contract by human power and is almost fixed, and a large number of springs work in the event of a rear-end collision. Since it expands and contracts, the two upper and lower flat plates remain almost parallel to each other, and at the moment, they are in a state of skidding, which means that they are almost freely sliding in the circumferential direction. Since it is made of a spring, it also absorbs the impact softly and also absorbs the impact.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic principle view from the side of the first embodiment. The seat blade 2 integrated with the seat 1 can slide the seat on the seat guide groove 4 of the base rail 3, and operates the seat lock lever 10, for example, pushes it up to instantaneously release the seat lock, and the seat position is changed individually. After adjusting, the seat lock lever 10 is pushed down again to lock the seat. When a rear-end collision occurs, the weight 16 generates a moment of inertia corresponding to the weight, and automatically lifts the seat lock lever 10, the seat lock is momentarily released, and the seat slide is pushed backward. The shock of the rear is buffered by the buffer spring 5.

FIG. 2 shows a schematic principle view from the side of the second embodiment. The seat blade 2 can slide the seat on the seat guide groove 4 of the base rail 3, and the seat slide is locked / instantly released by the operation of the seat lock lever 10 to switch to the seat slideable / disabled state.
The base rail 3 can be slid on the base guide groove 7 of the free rail 6, and the piston slide mechanism 9 that moves the piston 12 in and out with or without the occurrence of impact allows the foundation slide to the base rail recess 8. , Piston 12 on /
Basic lock at the time of exit / Instantaneous release is possible and basic slide is possible
Although the state is switched to the impossible state, when a rear-end collision occurs, the foundation is slidable and pushed backward, but the buffer spring 5 buffers the rear impact.

FIG. 3 shows a schematic principle view of the piston inlet / outlet mechanism 9 of the second embodiment, which functions in the case of a rear-end collision. In the case of a rear-end collision, the weight 16 generates an inertia moment corresponding to the weight, and automatically rotates the rotating plate 11 to move the piston 12 to the base rail recess 9
The basic lock is released instantly,
The seat is pushed rearward by the foundation slide, but the shock of the rearward shock is buffered by the buffer spring 5.

FIG. 4 shows a schematic principle view of the piston inserting / extracting mechanism 9 which functions in the case of a rear-end collision in the second embodiment. In the case of a rear-end collision, the weight 16 generates a moment of inertia in the front-rear direction corresponding to the weight, and when the rear-end collision is from the front, it rotates clockwise, when the rear-end collision is from the rear, it rotates counterclockwise. 11 to rotate the piston 12
Is pulled out from the basic rail Kubomi 9, the seat lock is momentarily released, and the seat is pushed backward by the basic slide, but the shock to the rear is buffered by the buffer spring 5.

FIG. 5 is a perspective view showing a state where the base plate 21 is attached to the free unit 19, and FIG. 6 is a view showing the base plate 21.
FIG. 7A is a schematic principle view of an exploded perspective view of the internal structure of the free unit in which the shafts are connected by a connecting shaft 24, and FIG. 7 (b) is a sectional view taken along the perspective view AA.
The first embodiment is an example corresponding to a rear-end collision from the rear and the second embodiment is an example corresponding to a rear-end collision. The third embodiment shows an example capable of supporting a rear-end collision, and the fourth embodiment is a mariti support unit. Shows an example that can be used to deal with a rear-end collision.

Specifically, the free unit is horizontally provided on the vehicle body. In the free unit, there is a support disk 26 which is slidable around, and the connecting shaft 24 is provided with a polygonal hole, a square rod upper hole 20a and a square rod lower hole 20b, and is integrated with a base plate 21 at the upper part. And the square rod pilot hole 20 at the bottom
The square rod 34 moves in and out of b to lock / instantaneously lock the free rotation of the indicator disk 26.

As shown in FIG. 6, the support disk 26 is held in a floating state by the support spring 30 and sandwiched between the free upper plate 22 and the free lower plate 29 from above and below. Upper ball 32b, supporting lower ball 32a
The bearings are free upper plate 22 and free lower plate 29, respectively.
Rotating in contact with and, it is possible to slide the supporting disc 26 around the free upper plate 22 and the free lower plate 29 in the space.

In other words, in the free unit horizontally fixed to the vehicle body, the support disk 26 is kept slidable in the horizontal plane, and the square rod prepared hole 20b is normally fitted in the square rod pilot hole 20b. Although the free slide is freely locked because 34 is inserted, when the square rod 34 is pulled out by the electric piston withdrawal mechanism 9 including, for example, the solenoid 36 and its drive circuit, the free slide becomes possible. It will absorb the shock from the surroundings.

In the first and second embodiments, the vertical type is shown with respect to the bottom surface of the seat, but the horizontal type parallel to the bottom surface of the seat is also possible, which makes it inconspicuous. It can be made compact.

Further, although the impact detecting means is shown by a mechanical method, as shown in FIG. 7, the acceleration sensor 38a is used.
Alternatively, the acceleration level determination 38b may be used to lock or instantaneously release the lock according to the degree of acceleration. In this case, the problem is immediate response to a rear-end collision, and in the case of a car seat, the lock can be released while the cushion of the seat itself is in use,
From the acceleration sensor 38a, check the acceleration level 38
b, the solenoid drive 38c, which is a function for generating a lock instant release signal, and finally the square rod 34 by the solenoid 36.
It may be configured to release the lock instantly by pulling.

Although it is considered that there is no problem with the time delay in the series of processes for the electric instant release of the lock, it is safe as a device for responding to an accident that rarely occurs, and because there is no failure of the electronic circuit. For this reason, the mechanical method has been described, but due to the recent advances in IC technology, and because most of vehicle control is now electronically controlled, the lock according to FIG. 7 is performed. An instant release method can also be adopted.

Further, although the shock absorbing function is provided between the seat and the vehicle body, an outer peripheral frame may be provided around the vehicle body, or in front, rear, left and right, and the shock absorbing function may be provided between this and the vehicle body. . In this case, since the outer peripheral frame exerts a guard function for some impacts and the cushioning cushioning function works for large impacts, it can be used not only for cars but also as shock absorbing means for playground equipment in amusement parks. Is.

FIG. 9 shows an example of a mechanical solenoid 41 which is a mechanical ambient impact sensor, and FIG.
The sectional view in BB of (a) is shown. This mechanical solenoid 41 may be adopted instead of the electric solenoid 36 in FIG.

Explaining the mechanical solenoid 41, the elliptical weight 45 is acted upon by an impact from the surroundings to exert an inertial force due to the moment of inertia, and the neck is swung along the trumpet surface of the trumpet-shaped weight support ring 44. , The wire 18 is pulled down and consequently the square rod 34 is pulled down. When the impact stops, the expansion rod 43 pulls up the square rod 34, and as a result, the elliptical weight 45 returns to its original position and is accommodated. The mechanical solenoid 41, which is the mechanical ambient impact sensor, is characterized in that it has both a sensor function and a traction function, and is mechanical, so it is robust.

It is also conceivable that the mechanical solenoid 41 of FIG. 9 is made extremely small and a compound type acceleration sensor in the circumferential direction is adopted instead of the electric type of the acceleration sensor 38a of FIG.

[0032]

As for the effect of the present invention, that is, the effect of the shock absorbing device constructed as described above, it is obvious that the conventional cushion of the vehicle seat cannot prevent it from the frequent occurrence of obstacles such as whipping caused by accidents. However, with the shock absorber of the present invention, the degree of obstacles that remain in the human body due to an accident can be reduced, and it can be set as an option under the seat without changing the shape of the conventional car, so new cars, used cars It can be set regardless of the car. Further, in the new model, the added value of the car may be increased by embedding it in the seat as a cushioned seat.

Regarding the after-effects of a rear-end collision, until now, only measures for rear-end rear-end collisions have been dealt with, but the fact that it is possible to deal with rear-end rear-end collisions in particular is that the degree of complicated after-effects due to rear-end collisions is considerable. It seems that this can be reduced, and it is considered that it will become a standard feature of car seats in the future.

As described above, in the conventional case, in the case of a rear-end collision, a complicated after-effect occurs not only on the neck but also on the waist. Whiplash of the neck is sensuously understandable, but the sequelae of the lumbar region are unknown. One of the main reasons for this is the inertial force of the impact that pushes the body backwards, but the knees are stopped at the front of the seat, and the thighs from the knees to the hips move backwards and the hips move backwards. The back is stopped up to the neck, and the head is pushed backwards.

As described above, in the case up to now, the seat in the locked state is integrated with the vehicle body. Therefore, if a rear-end collision occurs, the seat remains locked and only the body is pushed. According to the present invention, the seat and the body are pushed together by the inertial force, and the influence of the aftereffects on the body is significantly reduced. Even if a rear-end collision occurs, only a part of the body that causes the whipping is instantaneously displaced, and the body has a remarkable effect that the body is not instantly stiffened. What is important in the shock absorption according to the present invention is not only that the cushion of the cushioning means is added to the cushion of the seat itself to provide a double cushion effect, but also that the seat and the body are softly landed together. This has the effect of considerably reducing the extent of the complicated aftereffects due to the accident occurrence. For this reason, it may be provided not only in the seat of the car, but also in the seat of the airplane for the function of mitigating the impact of turbulence or landing.

[Brief description of drawings]

FIG. 1 is a schematic view of the principle of a first embodiment from the side.

FIG. 2 is a schematic side view of the principle of the second embodiment.

FIG. 3 is a schematic diagram of the principle of rear impact detection means of a mechanical sensor having a piston loading / unloading function.

FIG. 4 is a schematic view of the principle of front-back impact detection means of a mechanical sensor having a piston loading / unloading function.

FIG. 5 is a perspective view showing a free unit provided on the vehicle body supporting the base plate 21 by free sliding above.

FIG. 6 is an exploded perspective view of a free unit that is connected to the base plate with a connecting shaft above and uses a piston moving mechanism using a solenoid below.

7 (a) is a perspective view of the support disk 26 in a state of being connected to a connecting shaft, and FIG. 7 (b) is a cross-sectional view taken along line AA of the support disk 26 in FIG. 7 (a).

FIG. 8 is a block diagram of an electric piston loading / unloading mechanism 9.

9A is a top view of a mechanical piston loading / unloading mechanism 9, and FIG. 9B is a cross-sectional view taken along line BB of the mechanical piston loading / unloading mechanism 9.

FIG. 10 is a perspective view showing an embodiment in which a locking function for preventing free sliding of a free unit is omitted.

11A is a cross-sectional view of a vertical support mechanism that is a free unit and is an alternative of a lock function for preventing free slide, and FIG. 11B is a cross-sectional view taken along line CC of FIG. 11A.

FIG. 12 is a perspective view of a multi-support unit 59.

[Explanation of symbols] 1 seat 2 seat blades 3 foundation rail 4 seat guide groove 5 buffer spring 6 free rail 7 Basic guide groove 8 foundation rail Kubomi 9 Piston entry / exit function 10 Seat lock lever 11 rotating plate 12 pistons 13 pedestal 14 Wire support ring 15 Rotating plate support 16 weights 17 Stopper 18 wires 19 free units 20 square rod pilot hole 21 foundation plate 22 Free plate 23 Free upper plate fixing hole 24 connecting shaft 25 through ring 26 Horizontal support disk 27 washers 28 Horizontal support disk outer circumference 29 Free lower plate 30 Horizontal support spring 31 square rod hole 32 support balls 32a support lower ball 32b support ball 33 Free slide hole 34 square rod 35 screw holes 36 solenoid 38a Acceleration sensor 38b Acceleration level judgment 38c solenoid drive 39 Horizontal support disk fixing screw 40 body 41 Mechanical solenoid 42 Lock hole 43 Expansion spring 44 weight support ring 45 Oval weight 50 Vertical support disk 51 Vertical support shaft 52 Vertical support shaft hole 53 Vertical support spring 54 multi-support disc 55 Multi Spring 56 Multi-support upper plate 57 Multi-support lower plate 58 Multi support lower plate fixing hole 59 Multi Support Unit

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[Procedure amendment]

[Submission date] April 11, 2002 (2002.4.1)
1)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Shock absorbing device for a person or a luggage of a carrier at the time of a rear-end collision of a vehicle

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to reducing impact vibration damage of luggage during transportation, and particularly to reducing seat impact during a vehicle collision. In the following, for simplicity of illustration, a state in which the longitudinal plate (blade) is fitted into the guide groove and sliding along the guide groove is described as a slide, but the slide does not easily come off. In addition, it refers to a seat slide function that is also used for front and rear sliding for sliding seat position adjustment.

[0002]

2. Description of the Related Art As a conventional technique, there is a device in which a cushion function is devised so as to reduce the impact of a collision on a seat.

[0003]

However, when the shock of a vehicle collision, particularly a rear-end collision is large, the cushion function does not substantially function for the whipping of the head or the like only by the cushion function.

[0004] In particular, a driver is in a state of sitting on a seat and leaning against a backrest, and a shock at the time of a rear-end collision causes the knees to the toes to hang down from the seat. It is pushed forward by the front part of the seat and left behind from the knees to the waist, and because it is pushed forward by the back from the waist to the upper part, the head and thighs are left behind, and cervical spine injury in the head, Since the impact of the thigh on the lumbar region causes a complicated lumbar region disorder, complicated measures for avoiding the after-effects caused by the impact at the time of a rear impact are required.

[0005]

In order to solve the above problems, the gist of the present invention is to integrate the seat and the vehicle body
The function of instantaneous separation when a rear-end collision occurs, or the inertial force of the separated seat and body is absorbed by the cushioning function between the seat and the vehicle body or the vehicle body itself, and the collision, the separation of the seat and the body, the seat cushion, and the cushioning function are performed. The heavy cushion is intended to reduce physical damage such as whipping due to impact during a rear-end collision.

That is, in the case of a rear-end collision, the seat is momentarily released from the locked state and becomes free, and the seat and body are united and pushed backward by inertial force, but the impact of the rear-end collision is momentarily separated, The double cushion of the seat cushion and the cushioning means absorbs the seat and the body on the backrest softly, and avoids a complicated after-effect which is caused by a shock at the time of a rear-end collision.

[0007] Specifically, in the first example, the seat slide itself is applied to the cushioning function in order to cope with a rear-end collision, and the slide on the basic rail is performed by the seat locking means. Although it is locked, the seat lock means is momentarily released by the rear collision detection means to be slidable, and the slidability is buffered by the buffer means.

More specifically, the seat blade integrated with the seat can slide the seat back and forth on the base rail, and in the seat position adjusting means for seat locking the seat slide by the seat locking means, the seat locking means is locked at the moment of seat locking. The seat blade can be slid on the basic rail by momentarily releasing it by the releasing means, but the shock of the seat slide is cushioned by the rear cushioning means.

In the second example, a double slide function of a slide and a base slide is provided to cope with a rear-end collision, and in the seat slide, the seat can be slid back and forth on the base rail. In the slide, the foundation rail is capable of foundation slide back and forth on the free rail, the seat slide is restricted in its slide by the seat locking means on the foundation rail, and in the basic slide, the foundation lock means by its foundation on the free rail. It is locked, and the lock of the basic locking means is momentarily released by the front-rear collision detection means to allow basic sliding, but the basic sliding is buffered by the front-back buffering means.

More specifically, a free rail is provided below the base rail on which the seat blade is mounted, where the seat slide is seat-locked by the seat locking means, and the base rail slides forward and backward on the free rail. Is possible and yet the foundation slide is locked by the foundation lock by the foundation lock means, the foundation lock means is momentarily released by the foundation lock instant release means, and the foundation rail becomes the foundation slide movable on the free rail, The shock of the basic slide is buffered by the front-back buffering means.

In the third example, a free unit is provided to cope with a rear-end collision, and a free unit is provided in order to float the seat in the air and allow the seat to slide around in any direction. , A support disc that floats in the air and can be slid in any direction is provided, and the base plate that supports the seat and the support disc are connected to realize a state in which the seat floats in the air. Support lock means supports and locks the surrounding slide, and the support lock of the support lock means is momentarily released by the surrounding collision detection means to be slidable around, but the surrounding slidable is buffered by the surrounding buffering means. is there.

In the fourth example, the elasticity is such that it is elastically expanded and contracted and separated by an impact that causes personal injury, so that it is hardly affected by the human power such as pressing the accelerator or the brake. A multi-support unit with fixed parts was installed between the car body and the seat. As the elastic fixing part,
Arrange a large number of springs between the upper and lower flat plates so as not to detach them,
One is integrated with the car body and the other is integrated with the foundation plate.

In the fifth example, the joints of the seat and the backrest are provided with a rotating mechanism for adjusting the angle of the backrest, and at the moment of collision, the rotating shaft of the rotating mechanism allows the backrest to freely rotate, and at least, It was intended to alleviate the whiplash disorder of the head alone. As the shock absorbing spring, a rotation braking spring is provided even in the free rotation in the free rotating state to buffer the rotation shock of the free rotation.

[0014]

In the shock absorbing device constructed as described above, in the first example, the seat is normally locked by the seat locking means in accordance with the position of the seat by the seat slide. When a rear-end collision occurs, the seat lock is momentarily released by the rear-end collision detection means, and the seat can be slid,
The driver and the seat are pushed rearward by the moment of inertia corresponding to the weight, but the rear shock absorbing means reduces the rearward impact.

In the second example, the seat is normally locked by the seat locking means in accordance with a position suitable for each person by the seat slide. When a rear-end collision occurs, the front-rear collision detection means unlocks the foundation lock instantly, allowing the foundation to slide, and the driver and seat on the foundation rail move forward and backward with an inertia moment according to their weight. However, the front and rear cushioning means alleviate the impact on the front and rear.

In the third example, normally, the seat is locked by the seat slide in accordance with the position suitable for each person, but when a rear-end collision occurs from the surroundings, the supporting lock is momentarily released by the surrounding collision detection means. The driver and seat on the base plate, which is supported and slidable and is connected to the support disc, is pushed to the surroundings by the moment of inertia corresponding to its weight.
The impact on the surroundings is mitigated by the surrounding cushioning means.

In the fourth example, since the vehicle is operated by human power, it does not expand or contract by human power and is almost fixed, and a large number of springs work in the event of a rear-end collision. Since it expands and contracts, the two upper and lower flat plates remain almost parallel to each other, and at the moment, they are in a state of skidding, which means that they are almost freely sliding in the circumferential direction. Since it is made of a spring, it also absorbs the impact softly and also absorbs the impact.

In the fifth example, in a rear-end collision, the backrest realizes a free rotation state at the joints of the seat and the backrest, and after that, the upper body and the backrest are pushed together and pushed backward. The braking spring damps the rear shock.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. &nbsp; FIG. 1 shows a schematic principle view from the side of the first embodiment. The seat blade 2 integrated with the seat 1 is slidable on the seat guide groove 4 of the base rail 3,
The seat lock lever 10 is operated, for example, pushed up to release the seat lock momentarily, each seat position is adjusted, and the seat lock lever 10 is pushed down again to lock the seat. When a rear-end collision occurs, the weight 16 generates a moment of inertia corresponding to the weight, and automatically lifts the seat lock lever 10, the seat lock is momentarily released, and the seat slide is pushed backward. The shock of the rear is buffered by the buffer spring 5.

&Nbsp; FIG. 2 shows a schematic principle view from the side of the second embodiment. The seat blade 2 can slide the seat on the seat guide groove 4 of the base rail 3, and the seat slide is locked / instantly released by the operation of the seat lock lever 10 to switch to the seat slideable / disabled state. The base rail 3 can be slid on the base guide groove 7 of the free rail 6, and the piston slide mechanism 9 that moves the piston 12 in and out with or without the occurrence of impact allows the foundation slide to the base rail recess 8. , Piston 12
When entering / exiting, the basic lock / instantaneous release is performed and the state is switched to the state where the basic slide is possible / impossible, but when a rear-end collision occurs, the basic slide is possible and it is pushed backward, but the buffer spring 5 cushions the impact to the rear. Is buffered.

FIG. 3 shows a schematic principle view of the piston inserting / extracting mechanism 9 which functions in the case of a rear-end collision in the second embodiment. In the case of a rear-end collision, the weight 16 generates an inertia moment corresponding to the weight, and automatically rotates the rotating plate 11 to move the piston 12 to the base rail recess 9
The basic lock is released instantly,
The seat is pushed rearward by the foundation slide, but the shock of the rearward shock is buffered by the buffer spring 5.

FIG. 4 is a schematic principle view of the piston insertion / extraction mechanism 9 of the second embodiment, which functions in the case of a rear-end collision. In the case of a rear-end collision, the weight 16 generates a moment of inertia in the front-rear direction corresponding to the weight, and when the rear-end collision is from the front, it rotates clockwise, when the rear-end collision is from the rear, it rotates counterclockwise. 11 to rotate the piston 12
Is pulled out from the basic rail Kubomi 9, the seat lock is momentarily released, and the seat is pushed backward by the basic slide, but the shock to the rear is buffered by the buffer spring 5.

&Nbsp; FIG. 5 is a perspective view showing a state where the base plate 21 is attached to the free unit 19, and FIG. 6 is a development of the internal structure of the free unit in which the base plate 21 is connected by the connecting shaft 24. Fig. 7 (a) shows a schematic principle diagram of a perspective view.
Is a support disc 2 which is slidable around the free unit.
6 is a perspective view and FIG. 7B is a sectional view taken along the perspective view AA. The first embodiment is an example corresponding to a rear-end collision from the rear and the second embodiment is an example corresponding to a rear-end collision. The third embodiment shows an example capable of supporting a rear-end collision, and the fourth embodiment is a mariti support unit. Shows an example that can be used to deal with a rear-end collision.

Specifically, the free unit is horizontally provided on the vehicle body. In the free unit, there is a support disk 26 which is slidable around, and the connecting shaft 24 is provided with a polygonal hole, a square rod upper hole 20a and a square rod lower hole 20b, and is integrated with a base plate 21 at the upper part. And the square rod pilot hole 20 at the bottom
The square rod 34 moves in and out of b to lock / instantaneously lock the free rotation of the indicator disk 26.

As shown in FIG. 6, the support disk 26 is held in a floating state by the support spring 30 and sandwiched between the free upper plate 22 and the free lower plate 29 from above and below. Upper ball 32b, supporting lower ball 32a
The bearings are free upper plate 22 and free lower plate 29, respectively.
Rotating in contact with and, it is possible to slide the supporting disc 26 around the free upper plate 22 and the free lower plate 29 in the space.

In other words, in the free unit horizontally fixed to the vehicle body, the support disk 26 is kept slidable in the horizontal plane, and the square rod prepared hole 20b is normally fitted in the square rod pilot hole 20b. Although the free slide is freely locked because 34 is inserted, when the square rod 34 is pulled out by the electric piston withdrawal mechanism 9 including, for example, the solenoid 36 and its drive circuit, the free slide becomes possible. It will absorb the shock from the surroundings.

In the first and second embodiments, the vertical type is shown with respect to the bottom surface of the seat, but a horizontal type parallel to the bottom surface of the seat is also possible, which makes it inconspicuous. It can be made compact.

Further, although the impact detecting means is shown by a mechanical method, as shown in FIG. 7, the acceleration sensor 38a is used.
Alternatively, the acceleration level determination 38b may be used to lock or instantaneously release the lock according to the degree of acceleration. In this case, the problem is immediate response to a rear-end collision, and in the case of a car seat, the lock can be released while the cushion of the seat itself is in use,
From the acceleration sensor 38a, check the acceleration level 38
b, the solenoid drive 38c, which is a function for generating a lock instant release signal, and finally the square rod 34 by the solenoid 36.
It may be configured to release the lock instantly by pulling.

Although it is considered that there is no problem with the time delay of the series of processes for the electric instant release of the lock, it is safe as a device for responding to an accident that rarely occurs, and because there is no failure of the electronic circuit. For this reason, the mechanical method has been described, but due to the recent advances in IC technology, and because most of vehicle control is now electronically controlled, the lock according to FIG. 7 is performed. An instant release method can also be adopted.

Further, although the shock absorbing function is shown as being provided between the seat and the vehicle body, outer peripheral frames may be provided around the vehicle body, or in front, rear, left and right, and the shock absorbing function may be provided between this and the vehicle body. . In this case, since the outer peripheral frame exerts a guard function for some impacts and the cushioning cushioning function works for large impacts, it can be used not only for cars but also as shock absorbing means for playground equipment in amusement parks. Is.

FIG. 9 shows an example of a mechanical solenoid 41 which is a mechanical ambient impact sensor, and FIG.
The sectional view in BB of (a) is shown. This mechanical solenoid 41 may be adopted instead of the electric solenoid 36 in FIG.

Explaining the mechanical solenoid 41, the elliptical weight 45 is subjected to an inertial force due to the moment of inertia acting on the elliptical weight 45 due to the impact from the surroundings, and the neck is swung along the trumpet surface of the trumpet-shaped weight support ring 44. , The wire 18 is pulled down and consequently the square rod 34 is pulled down. When the impact stops, the expansion rod 43 pulls up the square rod 34, and as a result, the elliptical weight 45 returns to its original position and is accommodated. The mechanical solenoid 41, which is the mechanical ambient impact sensor, is characterized in that it has both a sensor function and a traction function, and is mechanical, so it is robust.

It is also conceivable that the mechanical solenoid 41 of FIG. 9 is made extremely small and a compound type acceleration sensor in the circumferential direction is adopted instead of the electric type of the acceleration sensor 38a of FIG.

FIG. 10 shows a schematic view of the vertical support mechanism,
10 (a) is a perspective view, and FIG. 10 (b) is FIG. 10 (a) C.
It is a sectional view in -C. FIG. 6 shows a free unit simple support portion provided to support the horizontal support disk 26 by omitting the lock function for preventing the free slide of the free unit, and a vertical support spring having elastic force to support weight. A vertical support disk 50 supported by 53 is provided, and a vertical support shaft 51 of the vertical support disk 50 is guided by a vertical support shaft hole 52 to be vertically movable. By reducing the mechanics as much as possible and simplifying it, it is rather solid.

FIG. 11 is a perspective view of FIG. 6 in which the lock function for preventing the free slide of the free unit is replaced with a vertical support mechanism which is a simple support of the free unit.

FIG. 12 shows a perspective view of the multi-support unit 59. Returning to the idea of the free unit itself in FIG. 6, the point is to support the seat and allow the seat to freely slide backward in the event of a collision. In particular, it has flexibility, and first of all it only has to support the weight of the person, and the movement up and down is not bad, but rather it may be used as a cushion. Secondly, the movement of the person as shown in FIG. The idea is that there is no need to strictly stop at each lot 34, etc., it is hardly affected by the movement of the driver, and even if it is not completely free from the impact of collision, it may be free with elasticity. It is based on. 6 is based on the idea based on the strictness, and is based on the idea to obtain an equivalent effect with a remarkably simple mechanism by thinking in a fuzzy manner.

FIG. 13 is a functional schematic diagram of the backrest free rotation, showing a backrest angle adjusting mechanism from the beginning,
It is thought that the driver can adjust the angle of the backrest 60 with the backrest adjustment lever 67 by further advancing the above idea and using only the rotation mechanism of the seat back to deal with the whiplash of the head. However, during this adjustment, the backrest 60 is the joint portion of the seat 1 and the backrest 60, and the backrest 60 is freely rotatable, so that the state of instant rotation is instantly achieved in the event of a collision. It was done.

Specifically, when a collision occurs, the adjusting lever weight 63 remains behind due to the inertial force, and the drive lever is lifted to lift the backrest adjusting lever 67, and the cam 67 and the backrest integrated adjusting gear 62 are formed. Once separated, the integral adjusting gear 62 becomes free to rotate, and the backrest 60 integral therewith also adjusts the adjusting lever shaft 6
Rotational braking spring 61 enables free rotation about 5 as an axis, and the impact of whip-like forward pushing, which is that backrest 60 momentarily pushes the upper body forward leaving the driver's head, is reduced.

Referring to FIG. 13, the backrest adjusting mechanism differs depending on each maker and may not be as shown in FIG. 13, but the point is that the backrest is free to rotate instantly at the time of a collision, or a collision occurs. If you can realize a free state where the backrest is separated from the car body at the moment of,
Any mechanism will do. In short, what is necessary is to reduce the shock of collision as much as possible and reduce the extent of damage caused by after-effects such as whipping on the human body.

The drawings from FIG. 1 to FIG. 13 are all principle diagrams and schematic diagrams, and are used for explaining the mechanism. Even if the mechanism or the structure is different for each manufacturer, the equivalent function is obtained. Anything that can be realized will do. Further, a shock sense for a rear-end collision may be provided in the shock absorbing device, and particularly in the case of a car, by providing it in the rear of the car, for example, around the number plate, it is possible to sense a collision quickly and delay the realization of the freedom, that is, lock. It is also possible to reduce the degree of time delay that the release of is not in time. A plurality of shock sensors may be provided around the vehicle.

[0041]

As for the effect of the present invention, that is, the effect of the shock absorbing device constructed as described above, it is obvious that the conventional cushion of the vehicle seat cannot prevent it from the frequent occurrence of obstacles such as whipping caused by accidents. However, with the shock absorber of the present invention, the degree of obstacles that remain in the human body due to an accident can be reduced, and it can be set as an option under the seat without changing the shape of the conventional car, so new cars, used cars It can be set regardless of the car. Further, in the new model, the added value of the car may be increased by embedding it in the seat as a cushioned seat.

Regarding the after-effects of rear-end collisions, until now, only countermeasures for rear-end rear-end collisions have been dealt with. However, the fact that it is possible to deal with rear-end rear-end collisions in particular is that the degree of complicated after-effects due to rear-end collisions is considerable. It seems that this can be reduced, and it is considered that it will become a standard feature of car seats in the future.

As described above, in the conventional case, in the case of a rear-end collision, a complicated after-effect occurs not only on the neck but also on the waist. Whiplash of the neck is sensuously understandable, but the sequelae of the lumbar region are unknown. One of the main reasons for this is the inertial force of the impact that pushes the body backwards, but the knees are stopped at the front of the seat, and the thighs from the knees to the hips move backwards and the hips move backwards. The back is stopped up to the neck, and the head is pushed backwards.

As described above, in the case up to now, the seat in the locked state is integrated with the vehicle body. Therefore, if a rear-end collision occurs, the seat remains locked and only the body is pushed. According to the present invention, the seat and the body are pushed together by the inertial force, and the influence of the aftereffects on the body is significantly reduced. Even if a rear-end collision occurs, only a part of the body that causes the whipping is instantaneously displaced, and the body has a remarkable effect that the body is not instantly stiffened.

What is important in the shock absorption according to the present invention is not only that the cushion of the seat itself is added with the cushion of the cushioning means to provide a double cushion effect, but the seat and the body are softened together. This is the fact that landing has been achieved, which has the effect of considerably reducing the extent of the complex aftereffects of the accident.

Moreover, since the strict requirement may rather lead to the complexity of the mechanism and improve the failure rate, the idea is fuzzy, that is, the strictness of the requirement is rather high. It may be a harmful effect, and even in this case, by considering the strictness of the requirements and relaxing the conditions as a shock buffering measure, it is rather dramatically simple and solid, and the effect is inferior. A multi-support mechanism without a problem, a backrest free rotation unlocking, etc. can be considered.

From the beginning, the shock sensing mechanism using a shock sensor is taken as an example of a fuzzy rear-end collision countermeasure, which is a departure from the orthodox idea of "unlocking by a shock sensor and realization of a free state" that is a complete rear-end collision countermeasure. It is not possible to exclude the idea that if there is a rear-end collision without restraint and if there is a rear-end collision, it is sufficient if the damage is suppressed and the damage is slight. Specifically, for example, in FIG. 1, the lock mechanism by the seat lock lever 10 is eliminated from the beginning, As a result, the weight 17 may be dispensed with, and the seat may be slid at all times. The problem in this case is how to set the elastic coefficient of the buffer spring 5. If the elastic coefficient of the buffer spring 5 is set to the weak (easy to expand and contract) side, if the driver slides the seat slide due to the driving force of the accelerator, brake, etc., the brake depressed by the driver is depressed by the seat slide. It is possible that things like failure to do so will lead to an accident. On the contrary, when the elastic coefficient of the buffer spring 5 is set to the strong (easy to expand and contract) side, the buffer spring does not expand and contract due to the drive force, but when a rear impact occurs, the buffer spring can play the role of the rear impact buffer. There is no. Here, the elastic coefficient is set to a level such that the driving force has no effect on the lower limit, and even if the cushioning function at the time of a rear-end collision cannot be sufficiently fulfilled, it is milder than serious whipping. By limiting the value to the upper limit, a simple and robust one can be considered.

It is conceivable that the above shock buffering measures are provided not only in the seats of trains and cars but also in the seats of airplanes for the purpose of cushioning the turbulence or when landing.

[Brief description of drawings]

FIG. 1 is a schematic view of the principle of a first embodiment from the side.

FIG. 2 is a schematic side view of the principle of the second embodiment.

FIG. 3 is a schematic diagram of the principle of rear impact detection means of a mechanical sensor having a piston loading / unloading function.

FIG. 4 is a schematic view of the principle of front-back impact detection means of a mechanical sensor having a piston loading / unloading function.

FIG. 5 is a perspective view showing a free unit provided on the vehicle body supporting the base plate 21 by free sliding above.

FIG. 6 is an exploded perspective view of a free unit that is connected to the base plate with a connecting shaft above and uses a piston moving mechanism using a solenoid below.

7 (a) is a perspective view of the support disk 26 in a state of being connected to a connecting shaft, and FIG. 7 (b) is a cross-sectional view taken along line AA of the support disk 26 in FIG. 7 (a).

FIG. 8 is a block diagram of an electric piston loading / unloading mechanism 9.

9A is a top view of a mechanical piston loading / unloading mechanism 9, and FIG. 9B is a cross-sectional view taken along line BB of the mechanical piston loading / unloading mechanism 9.

FIG. 10 is a perspective view showing an embodiment in which a lock mechanism for preventing free slide of a free unit is omitted.

FIG. 11A is a perspective view of a vertical support mechanism. (B) is a cross-sectional view taken along line CC of (a).

FIG. 12 is a perspective view of a multi-support unit 59.

FIG. 13 is a functional schematic diagram of backrest free rotation.

[Explanation of symbols] 1 seat 2 seat blades 3 foundation rail 4 seat guide groove 5 buffer spring 6 free rail 7 Basic guide groove 8 foundation rail Kubomi 9 Piston entry / exit function 10 Seat lock lever 11 rotating plate 12 pistons 13 pedestal 14 Wire support ring 15 Rotating plate support 16 weights 17 Stopper 18 wires 19 free units 20 square rod pilot hole 21 foundation plate 22 Free plate 23 Free upper plate fixing hole 24 connecting shaft 25 through ring 26 Horizontal support disk 27 washers 28 Horizontal support disk outer circumference 29 Free lower plate 30 Horizontal support spring 31 square rod hole 32 support balls 32a support lower ball 32b support ball 33 Free slide hole 34 square rod 35 screw holes 36 solenoid 38a Acceleration sensor 38b Acceleration level judgment 38c solenoid drive 39 Horizontal support disk fixing screw 40 body 41 Mechanical solenoid 42 Lock hole 43 Expansion spring 44 weight support ring 45 Oval weight 50 Vertical support disk 51 Vertical support shaft 52 Vertical support shaft hole 53 Vertical support spring 54 multi-support disc 55 Multi Spring 56 Multi-support upper plate 57 Multi-support lower plate 58 Multi support lower plate fixing hole 59 Multi Support Unit 60 backrest 61 Rotational braking spring 62 Backrest integrated gear 63 Adjustment lever weight 64 backrest rotation axis 65 Adjustment lever shaft 66 Adjustment lever return spring 67 Backrest adjustment lever

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Figure 3]

[Figure 4]

[Figure 5]

[Fig. 2]

[Figure 6]

[Figure 7]

[Figure 8]

[Figure 9]

[Figure 10]

FIG. 11

[Fig. 12]

[Fig. 13]

Claims (16)

[Claims] 1. At the moment of the impact of a vehicle rear-end collision, an earthquake, or a transportation vibration, the impact body and the impact anaerobic gas of the body or hard disk are momentarily separated, and the inertial force of the inertial body generated by the impact is softened by buffer means such as a spring. An impact cushioning device that reduces the impact of the impact by damping it by landing absorption. 2. In the moment separation, the seat blade is capable of sliding the seat back and forth on the basic rail, and a rear impact detection means detects a rear impact and locks the seat slide by a seat lock means. The shock absorbing device according to claim 1, wherein the seat lock is instantly released and is instantly released. 3. The momentary separation is such that the seat slide is still locked, the foundation rail is slidable forward and backward on a free rail, and the impact from the front and rear is detected by the front and rear impact detection means, and the foundation slide is detected. 2. The shock absorbing device according to claim 1, wherein the basic lock is instantaneously released by the basic lock means for locking the basic lock. 4. A free unit having a support disk which is freely slidable in the circumferential direction and having a connecting shaft fixed to the support disk. 5. In the instant separation, the base plate is connected to the connecting shaft so that the base plate is slidable in the circumferential direction, and there is a hole for supporting lock at the bottom of the supporting disc, The impact is detected by the surrounding impact detection means, and the base plate slide is locked by the support lock by the support lock means. The base plate lock is instantaneously released by the base plate lock means. Item 1. The shock absorbing device according to item 1. 6. The rear impact detection means, the front and rear impact detection means, or the ambient impact detection means is an electric type or mechanical type, or a combination type electric and mechanical type acceleration sensor. , 3, 5 shock absorber. 7. The shock absorber according to claim 6, wherein the mechanical type is an inertial force acceleration sensor utilizing inertial force. 8. The inertial force acceleration sensor has a weight, a support ring, a cylinder, and a piston rod, and the support ring is a flared trumpet-shaped dimple provided on one surface of the trumpet-shaped dimple. A hole is provided in the center of the hollow, the weight is placed on the trumpet-shaped hollow, and the weight and the piston rod that goes in and out of the cylinder provided on the other surface are tensionally connected by a wire or the like by a spring or the like for automatic return. Circumferential acceleration sensor 9. The shock absorbing device according to claim 7, wherein said circumferential acceleration sensor is used. 10. The composite acceleration sensor, wherein the composite expression uses an output of the inertial force acceleration sensor as an input of an electric acceleration sensor. 11. The shock absorbing device according to claim 7, wherein said compound type acceleration sensor is used. 12. The seat lock instant unlocking means, the base lock instant unlocking means, or the support lock instant unlocking means includes the rear impact detecting means, the front and rear impact detecting means, or the surrounding impact detecting means and a piston rod. The shock absorbing device according to any one of claims 1, 2, 3, 4, 6, 8, and 10, wherein the shock absorbing device is a pulling means. 13. The support disk includes therein a support disk which is sandwiched from above and below by a free upper plate and a free lower plate and whose free sliding in the circumferential direction is restricted by a buffer means. Is connected to a base plate having the base rails provided at the upper ends of both ends by a connecting shaft, and the diameter of each of the free slide holes provided in the connecting shaft and the free upper plate and the outer circumference of the supporting disc of the supporting disc. But,
The support disc is provided so as not to be separated by the free slide to the surroundings, and the free slide lock / instantaneous release function is provided.
The free slide lock polygonal hole is provided in the free lower plate of the free unit, and the entry / exit of the polygonal cylinder piston rod composed of the peripheral impact detection means and the traction means to / from the free slide lock polygonal hole. Shock absorbing device according to 7, 8, 11, 12 14. A multi-support unit provided with an elastic fixing portion which is almost fixed by a human force such as stepping on a brake and elastically separated by an impact that causes personal injury. 15. The multi-unit according to claim 14, wherein the elastic fixing portion is supported by a large number of elastic bodies. 16. The shock absorbing device according to claim 15, wherein the instant separation fixes the base plate to the elastic fixing portion.