JPS6013856B2 - Safety device that restrains seat occupants in a vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a safety device for restraining a seat occupant in a vehicle.

− West German Utility Model Registration No. 7332467 and No. 733
No. 9423 discloses a device for protecting children, which includes restraints made from rigid plastic foam or other materials that can be permanently deformed and consume energy. Each of the restraining members extends rearward on both sides and is attached to a suitable location on the vehicle.The restraining member is also provided with a belt for fixing the restraining member.

The restraining member ~ rests on the vehicle and is supported by a bottom part with a cutout for receiving the child's feet, or directly on the arm of a special child safety seat placed on a conventional vehicle seat. Supported. The upper surface of the stop is designed, so to speak, like a table with a substantially flat surface, so that it can be used as a support for toys, or as a play area, etc. The green portion of the stop member facing towards the child has a cutout that is shaped to approximately adapt to the child's body shape. The height and width of such a restraining member, as well as the size and shape of the above-mentioned notch and the rounded convex green at its upper and lower portions, are designed to "distribute the restraining force applied by the restraining member to the child's pelvis and chest." Therefore, the child's upper body can bend forward to prevent excessive loads from being placed on the neck in the event of an accident.Also, the child's head is restrained by the restraining member so that it cannot bend forward. It is clear that such a restraining device is suitable for the protection of children in practice.

This is because such counterfeiting eliminates excessive loads that can be placed on the neck of the spinal column when restraining a child with a belt, especially when the child's upper body is restrained, for example with a shoulder belt. be. However, in the event of an accident, the child's head and upper body can move forward, so if the child moves too far forward, the child's body will hit the front seat, so there are limits to how to stop and protect the child's neck. be. However, in the case of known retaining devices with a restraining element, the degree of forward movement is limited to a very limited extent, i.e. the extent of the forward movement of the restraining element is such that the restraining effect of the restraining element is greater than the chest of the person to be protected. It can only be changed by increasing the thickness. However, "a restraining member extending into the chest area is not comfortable, as it restrains the child considerably and cannot actually deform. This also means that restraint devices with a restraining member have hitherto not been able to protect adults. More specifically, in the case of adults, the relative height of the restraints in the thorax is even greater due to the adult's body size and resulting forward movement. Importantly, the present invention solves the problem of constructing a safety device in which a restraining member is positioned to prevent excessive forward movement of the seat occupant without loss of comfort or discomfort for the seat occupant. This is what I did.

The present invention provides a safety bag counterfeit for restraining a seat occupant in a vehicle, and the device is a lower body restraining means that defines a space for accommodating the occupant's thighs, lower body restraint means including rigid panel means pivotally mounted and capable of pivoting movement from a ready position on the lower body restraint means to an operative position in front of the chest of the occupant; means on each side for mooring said lower body restraint means to said vehicle, while deceleration of said vehicle allows limited inertial interlocking of said lower body restraint means relative to the seat of said vehicle; and lever means arranged such that each said strip is pivoted to a respective point on said panel means or to a stop on said restraint means adjacent said occupant's lower body. mounted, said attachment point being remote from said pivot of said panel means such that inertial movement of said occupant relative to said vehicle seat causes said lower body restraint means to displace from said vehicle seat, so that tension The panel means, when applied to each of the strips, is characterized in that it pivots the panel means into its operative position in front of the occupant's chest.

The panel means can be moved to its operative position so that the occupant is sufficiently restrained such that the primary restraining force is transferred from the abdomen to the chest area.

Furthermore, said panel means can be moved a predetermined distance, for example in an upward direction, so that in case of an accident the upper body of the occupant can be flexed until it is supported by the panel means moving towards the occupant. The extent can be determined in advance. As a result, it is possible to prevent the occupant's upper body from moving forward excessively in the event of an accident. When an impulsive deceleration occurs, the panel means "moves from a lower level out of the way of the seated person to a higher level in the chest area where it restrains the person particularly effectively. In the event of a vehicle collision, the In the presence of the force transmitted by the band, this occurs rapidly, so that an upward movement of the panel means occurs before the upper body has moved forward and flexed. It can be used to protect adults as well as children.Compared to conventional belt devices, the larger area of the panel means results in a more favorable force distribution. can be embodied in a format.

For example, in one preferred embodiment, the panel means is in the form of a panel that can be pivoted from a substantially horizontal position to an inclined upward position away from the occupant. The width of the top surface of the panel corresponds substantially to the width of the occupant's body, and (when the panel is substantially horizontal) The depth (measured horizontally away from you) essentially corresponds to the body length between the occupant's pelvis and the top of the chest.Therefore, the top surface of the panel extends beyond the occupant's pelvis when it is in the horizontal position. In case of an accident, i.e. when the panel is swung upwards and in a tilted position, it supports the occupant's forward bent upper body over a large area. Preferably, the panel means includes a pivotably mounted panel on each side of the lower body restraint means which is pivoted into its operative position by a lever disposed adjacent the panel.

Preferably each respective lever has a guide over which the respective strip passes before being attached to a point on the lever remote from the pivot axis of the panel means. Thereby, the strips are attached so that they do not interfere with the pivoting movement of the panel. When the lower body restraint means is removed from the vehicle seat, the tension in each strip acts on a respective lever, causing the panel to pivot into its operative position, thus preventing the lever from returning to the ready position. do.

In another embodiment of the invention, "the panel means are parallel to the pivot and each strip of the pivot at one end (closer to the occupant) and at the other end (further from the occupant)." The panel includes a panel having a bending axis between the body connection point and the body connection point.

In use, this bending axis moves upward to reduce the distance between the pivot axis and the belt attachment point, and a portion of the panel pivots towards the occupant's chest. According to another embodiment of the invention, the strips can pass over respective guides which are arranged far from and below the pivot axis of the top panel means.

This allows the strip connection point to be placed behind the occupant. When levers are used to pivot the panel means into their operating position, these levers can take the form of single-arm or two-armed levers, in particular knee levers or core members. The means of restraint is
It can be in the shape of a tunnel-shaped body shaped to fit over the occupant's thigh.

This may otherwise include an additional seat for a child occupant, said seat being mounted to rest on the vehicle seat and having an arm supporting the panel for pivoting movement. ing. This may include such an additional seat comprising a fixed base panel extending through the child's thighs when seated, said panel means being pivotable to the base panel. This is a panel connected to the Next, specific examples of the present invention will be described with reference to the accompanying drawings.

In the figures of the accompanying drawings, a seat 1 is shown fixed to a vehicle body 2 (as shown).

An occupant 3, who may be a child or an adult, is sitting on the seat turtle. The safety device for restraining this occupant is generally designated by the reference numeral 5. Third example showing a specific example of the present invention
In Figures 6 to 6, the occupant is a child, and the lower body restraint means is a child safety seat 4 freely supported on the seat top of the vehicle.
A panel flea a is supported either on the arm of the child safety seat 4 or on the fixed panel 5b (FIG. 6). Also, in Figures 2 and 7,
Although these also show specific examples of the present invention, the restraining means is
This is the shape of the tunnel-type main body 5b that supports the panel 5a in the same way as above. This tunnel-shaped main body 5b (FIGS. 2 and 7) is supported on the occupant's thigh. In any of the above cases, the child safety seat 4 or the tunnel body 5b is not fixed to the seat of the vehicle. 1 shows a known safety device 5, generally in the form of a tunnel-shaped body.

The belt 6 extends on both sides of the device 5 towards a connection point (not shown) on the body of the vehicle. Figure la is
This shows a normal situation in which the occupant is not experiencing any deceleration forces.

However, in the event of an accident, such forces are applied to the occupant, and the inertia of the occupant's body causes the safety device 5 to move forward on the seat rack, causing the belt 6 to become taut. b
Figure) ``Thus, the lower body is fixed, but the upper body bends as shown in Figures lc and lb. Such movements can injure the occupant. Figures 2a to 2d.
The figure shows an embodiment of the invention in an operating state similar to that described above.

However, in this case the safety device 5 comprises a tunnel-shaped body 5b on which a panel 5a is supported pivotably in the direction of the arrow 8. This pivoting movement is caused by the action of lever wings 9 arranged between the panel 5a and the body 5b.On both sides of the seat 1, each leather strap 7 has a... The rear edge 101 of the panel 5a is attached to the outer end of the lever far from the occupant, passing over the guide at the inner end closer to the occupant of panel 5a. The width of the panel 5a and the size and shape of the notch and its convex portions that are rounded in both the vertical and vertical directions are as follows.
The restraining force acting on the occupant is distributed from the pelvis to the abdomen and the lower part of the rib cage to prevent an unacceptably large force from being applied to the abdomen. When an accident occurs and deceleration force is applied to the rear twill part 101 of the panel,
As shown in the figure, it follows the forward movement of the occupant's body. However, in this case, ``the panel 5a pivots upward toward the occupant's chest as the band 7 becomes tense (the second b.
(Fig. 2c and
d). The occupant's upper body is thus restrained before it can bend forward as described with reference to Figures 1-1. The width of the panel vine a substantially corresponds to the width of the occupant's body, and its depth substantially corresponds to the length between the pelvis and the upper rib of the occupant's body.

Thus, when the panel flea a is pivoted to its upper position, the panel forms a wide support area extending from the occupant's thighs to the upper chest, yet restraining the upper body. FIGS. 8a and 3b show the rest and final positions, respectively, of another embodiment of the securement device according to the invention.

In this case, "Child 3 occupies safety seat 4 and panel 5a
is pivotally connected to the safety seat by hinge means. In the rest position, the panel a is located on the arm part of the seat mother ~ above the child's thigh. Each respective strip hole is connected to a mooring point 3 on the body 2 of the vehicle, and the seat crab's It passes over the guide and is attached to the connecting means 12 on the panel 5a.Thereby, the strip 7 is
The occupant is held at a distance from the pivot axis of the panel 5a when subjected to deceleration forces. As shown in Figure 3b, seat 4
moves relative to the vehicle seat 1 and thereby tensions the strip 7, causing the panel 5a to pivot upwardly in front of the occupant's chest. 4a and 40 show yet another embodiment in which a child 3 occupies the child safety seat 4. FIG.

The safety seat 4 comprises an arm supporting a panel with hinge parts 5a and 5b. These hinge portions are hinged at a bent ball 14 parallel to the swinging ratchet 11. Each strip 7 is attached to the connecting point adjacent to the furthest green of the section 5b passing over the guide on the pivot axis 1 tortoise. When a deceleration force is applied to the occupant, “Seat 4
moves forward and the panel bends along axis 14,
This causes the closest edge of the panel section to be drawn along the travel path 15' towards the nearest green (Figure 4b). This causes the panel portion 5a to pivot into a position in front of the occupant's chest to provide the necessary restraint.
By being stationary on the arm of , the bending movement occurs along the travel path ]5. Figures 5a and 5b show child 3
shows the rest position and final position of yet another embodiment in which the seat 4 occupies the seat 4;

In this case, the panel 5a rests on the arm of the seat 4 and is pivotably connected to the seat by levers 21 on each side. Each lever 2 river ~ panel 5
The rotary shaft 16 on the seat a and the rotary shaft 17 on the seat 4 are connected to each other. The strips 7 provided on both sides of the seat 4 are connected to "connection points provided at one end of each arm portion 18 extending rearward of the main portion of the panel 5a around a pivot point on the rotation axis 17. 12. When the occupant is subjected to a deceleration force, the panel 5a pivots up to the inclined surface 16 and restrains the occupant's upper body (FIG. 5b). According to a variant of this configuration, the panel 5a It is also possible to mount it on the arm of the seat 4 and/or to attach the pivot point 17 to the vehicle seat 1 instead of the child seat 4. Figures 6a and 6b
The figure shows the rest and final position of another embodiment in which a child 3 occupies the seat 4.

In this case, the panel 5a is a fixed member or the panel 5b
is pivotably supported on the top. Panels 5a and 5b are
It can form a unit placed above the child's thigh or supported on the arm of the seat 4. Similar to the embodiment shown in FIGS. 2a to 2d, the panel 5a is moved into an inclined position in front of the occupant's chest (FIG. 6b) by levers 19 attached to the strips 1 on both sides of the seat 4. It is made to rotate until the end. Each strip 7 has a guide 20 on the lever 19.
It passes through the top and is attached to the connection point 21. The operation of this embodiment will be apparent from the description of Figures 2a-2d. Figures 7a and 7b show that the thighs of an adult 3 are restrained by a tunnel-shaped body 5b, and the chest of the adult 3 is restrained by a panel 5a attached for pivoting movement on the body 5b (Figure 7), Figure 2a Figures 2b to 2b show the rest and final positions of similar embodiments.

The configuration and operation of this specific example are the same as those of the specific example described with reference to FIGS. 2a to 2d, so the description thereof will be omitted here. In general, the tension in the strip 7 is applied to the movable panel 5a by means of a transmission element which may consist of a lever with a single arm or two arms, in particular a knee lever.
These transmission elements may also be eccentric members.

The lever 19 described in some of the embodiments above is a transmission means, for example as described above, and this lever is such that the tension of each strip acts over the guide on the rotary koji 20 to reach the connection point 21. is positioned such that it rotates toward the occupant's chest. This causes the panel 5a to pivot to its upper, oblique position.

[Brief explanation of the drawing]

FIGS. 1A to 1D are diagrams sequentially showing the moving states of a known restraining device. Figures 2a and 2b are diagrams sequentially showing the moving states of the safety device according to the present invention. 3 to 7 are side views of various embodiments of the safety device according to the invention, the normal position being indicated by a and the position in case of an accident being indicated by b. Furthermore, Figures 3 to 6 are for children.
Figure 7 is for adults. 1...Vehicle seat, 2
...Vehicle body, 3...Occupant, 4...
Child seat, 5...Safety device, 5a...Movable panel, 5b...Tunnel type main body, 6,7...
...Belt, 11, 17... Rotating shaft, 19.
...Reno Ichio〇ri 7 Tan 92 Hit 93 〇G4 F'95 Attached 96 Attached 9F

Claims (1)

[Scope of Claims] 1. A lower body restraining means that is a safety device for restraining an occupant in a vehicle seat and defines a space for receiving the thighs of the occupant, and is rotatably mounted thereon. lower body restraint means, each side of the lower body restraint means including a rigid panel means capable of pivoting movement from a ready position on the lower body restraint means to an operative position in front of the chest of the occupant; mooring the lower body restraining means to the vehicle,
and a band-like body for enabling limited inertial movement of the lower body restraint means relative to the seat of the vehicle upon deceleration of the vehicle, each of the band-like bodies being arranged above the panel means. or lever means arranged for pivoting about an axis on said restraint means adjacent to said occupant's lower body, said attachment point being pivoted from said pivot axis of said panel means; far apart, whereby inertial movement of the occupant relative to the vehicle seat causes the lower body restraint means to move away from the vehicle seat, such that tension is applied to each of the strips to cause the panel means to move toward the vehicle seat. A device characterized in that it can be pivoted into its operating position in front of the occupant's chest. 2. The lower body restraint means is in the form of an additional seat for the child occupant, the seat is arranged to rest on the vehicle seat, and when the additional seat is seated the child occupant 2. The device of claim 1, including a fixed base panel intended to extend across the thigh of a person, said panel means being in the form of a panel pivotally connected to said base panel. 3. Claims in which the lower body restraint means includes a tunnel-shaped body that fits over the thighs of the occupant on the vehicle seat, and the panel means is a panel supported for pivoting movement on the body. The device according to paragraph 1. 4. said lever means including a lever located adjacent said panel means on one of each side of said lower body restraint means, each said lever having a guide and said respective strip passes over the guide before being attached to a point on the lever remote from the pivot of the panel means, so that when the lower body restraint is removed from the vehicle seat, 4. A tension force acting on a lever to pivot the panel means into its operative position so that the lever prevents return movement of the panel means to a ready position. Equipment described in Section 1. 5. The apparatus of claim 1, wherein said panel means includes two hinged portions that are pulled together in said operative position. 6. the lower body restraint means includes an additional seat for the child occupant, the seat is arranged to rest on the seat of the vehicle and has an arm portion;
6. The apparatus of claim 5, wherein the two sections are slidably supported on the arm section by a hinge section extending laterally between them. 7. In use, the strip passes over respective guides attached one side to each edge of the part of the panel means closest to the seat occupant; 7. The device of claim 6, wherein the device is attached to the other of the parts adjacent the edge that is farthest away from the person. 8. said lower body restraint means comprising an additional seat for a child occupant, said seat being arranged to rest on said vehicle seat and having an arm portion, said panel means; is in the form of a panel supported by the arm, the panel extending rearwardly of the seat occupant and having a lever arm connected to the strip. Apparatus described in section. 9. Apparatus according to claim 8, wherein said strip is guided about a point below said pivot of said panel means.