KR101010898B1 - An active car seat - Google Patents

Abstract

The present invention relates to an impact-responsive seat device, and more particularly, by moving and stopping a support member that supports a passenger's head to an optimal position immediately after a collision (collision) accident of a vehicle is supported so that the head does not lean back sharply. The present invention relates to an impact responsive sheet device.

Shock response, automobile, seat, headrest

Description

Shock response seat device {An active car seat}

The present invention relates to an impact-responsive seat device, and more particularly, by moving and stopping a support member that supports a passenger's head to an optimal position immediately after a collision (collision) accident of a vehicle is supported so that the head does not lean back sharply. The present invention relates to an impact responsive sheet device.

In general, the headrest is installed to support the occupant's head at the top of the seat back of the seat. In the past, when a collision (collision) occurs, the head member is moved to the front immediately so that the head is not suddenly tilted back so that a serious neck injury is caused. There is a variable moving headrest device (2002.1.28. US Patent Application No. 10 / 184,675) to prevent the occurrence of this, the variable moving headrest is the back of the occupant in the event of a collision (collision) accident, as shown in Figure 1a, 1b When striking the striking plate 1A pivotally mounted to the hinge shaft inside the backrest, if the force is stronger than the elasticity of the spring 1B pulling the striking plate forward, the striking plate is pushed backward to load The headrest 3A connected by 2A is inclined forward.

However, if the striking plate 1A is pushed backward by a strong blow by the occupant's back, the headdress 3A moves forward to reach the head restraint position, but the back is hitting the striking plate and the head is flipped back. When the contracting force of the spring (1B) is greater than the force applied to the striking plate at the time, the striking plate is immediately returned to the front, so that the headrest is returned to the rear, and the headrest is in the process of moving backward. There has been a problem that the head is not effectively supported to lean back a little later after it has been moved.

The present invention has been made to solve the above problems of the conventional headrest, the object is to provide an impact-responsive sheet device that effectively prevents the head from flipping back in the event of a collision (collision) accident.

Another object of the present invention is to provide an impact-responsive sheet device which allows the support member moved forward to be simply moved back to its original position and converted to a normal use state.

In the above object of the present invention, if a collision (collision) accident occurs in which the head of the occupant is sharply flipped backward and the back of the occupant strongly hits the backrest, the supporting member moves forward to the foremost position immediately. It stops and supports the head so that it does not lean back at the optimum position. After absorbing the impact effectively, it moves forward and returns the stationary support member to the rear to return it to normal use. It is achieved by providing a reactive sheet device.

In the impact-responsive seat device according to the present invention, when a collision (collision) accident occurs, the support member immediately moves to the forefront and stops so that the head of the occupant is supported at the optimal position so that the head of the passenger does not lean back and the head is strong. It also prevents severe neck injuries that were caused by the head flipping back suddenly during a collision (collision) accident.

In addition, there is an advantage that can be converted to the normal use state by returning the backing member in the stationary state after moving forward to effectively absorb the shock to the rear position.

Figure 2 is a schematic side view showing a part of the impact-responsive sheet device according to an embodiment of the present invention installed on the backrest, Figure 3 is an exploded view of the present invention, Figure 4 is an assembly view of the present invention.

The impact-responsive sheet device as a basic configuration of the present invention includes a substrate member 20, a lifting member 30, a traction spring 30 '', a variable member 40, a first ratchet member 50, a first switching spring. It comprises a 60 and the first release member 70, it is possible to further install the stay rod 30 ', the guide member 90 and the binding pin 363 as one embodiment. Looking at these configurations in detail,

It is installed at the rear of the upper end of the frame 11 mounted inside the seat back 10, and vertical holes 211 which vertically penetrate the vertical holes 221 and 221 'which penetrate the middle parts from side to side, respectively. Guide tubes 22 and 22 'formed with 211' are vertically installed, and support pieces 23 and 23 'having shaft holes 231 formed at rear ends between the guide tubes at the bottom thereof are appropriately spaced apart. A substrate member 20 extending downwardly and horizontally extending the lower guide piece 21 'formed with a guide hole 21' 'at the lower end between the support pieces;

The left and right vertical rods 31 and 31 ′ which are longer than the guide tubes and vertically coupled to each other and one notch 32 formed on the inner surface of the upper side of the vertical rod 31 and the images of the left and right vertical rods Up and down horizontal rods 33 and 33 'which are fixed horizontally to the lower end, and hinge pieces 34 and 34' which are fixed to both ends of the upper horizontal rod, and hinge shafts 35 respectively on the front upper portions. Binding pipes 36 and 36 ', each of which has a hinge plate 361 that is axially installed therein, and has coupling holes 362 for inserting a portion of the binding pins 363 to one side of the lower side thereof. And elevating member 30 having a,

The bottom portion is formed by attaching the horizontal portion 30'a to the support member 10a and having the binding grooves 30'c formed on both vertical portions 30'b and 30''b extending downward from both ends of the horizontal portion. A stay rod 30 'inserted into the pipes 36 and 36' so as not to be detached and bound to the binding groove;

Each upper end is not a lifting member to be raised, that is, the upper end of the both sides of the substrate member or the upper end (11a) of the backrest frame 11, etc., each lower end hangs at both ends of the lower horizontal rod, the contracting force raises the lifting member Towing springs (30 "),

하 가변판을 타격판의 후면 중간에 경첩상태로 축 설치하는 중간 장축(46)과 상기 각 걸이편에 상

하단을 걸어 설치하며 수축력이 상부 가변판의 상단부를 상부 장축이 장공의 상단 내면에 걸어질 때까지 하강시켜 타격판이 전방으로 밀려나게 하는 가변스프링(47)을 구비하는 가변부재(40)와, An upper variable plate 41 having a long hole 411 penetrates horizontally at the upper end, and a hinge protrusion 412 at the lower end, and a hook piece 413 at both upper sides of the front side, and the hinge protrusion at the upper end. Laying hinge protrusion 421 is installed, and the lower end of the variable plate 42 and the front of both sides formed with a long axis hole 422 in the transverse direction and a hook piece 413 'is installed on both lower sides of the front. The upper portion of the upper variable plate is coupled to the blow plate 43 having a hinge stone piece 431 having a hinge shaft hole 432 corresponding to the shaft hole formed in each of the hinge protrusions, and through the long hole and each shaft hole. The shaft is fixed to the fixing member 13 which is attached to both sides of the rear side of the cross member 12 which fixes the upper long shaft 44 which is axially coupled to the shaft hole of the support piece, and the long shaft hole of the said lower side plate in the middle of the two vertical parts of a frame. The lower long axis 45 to install and the said angle meshing with each other The shaft hole formed in the hinge protrusion and the hinge shaft hole of the hinge stone piece penetrate through the

Upper middle shaft 46 for installing the lower variable plate in the hinged state in the middle of the rear of the impact plate and the upper

A variable member 40 having a variable spring 47 which is installed by hanging at a lower end thereof and has a contracting force lowering the upper end of the upper variable plate until the upper long axis is hooked on the inner surface of the upper end of the long hole so that the striking plate is pushed forward;

Located at the right side of the guide tube 22, the upper end portion is installed on the lower back of the substrate member by the pin shaft 50a, and the lifting member is completely lowered at the lower end so that the notch 32 of the vertical rod 31 is perpendicular to the right side. When placed in the long hole (221) enters the inside of the guide tube through the vertical long hole to lay the claws 51 for notching, the release piece 52 on the right side of the upper end and the stopper 53 on the left horizontally The first ratchet member 50,

A first switching spring 60 having one end hooked to the left side of the lower end of the first ratchet member and the other end hooked to the lower back of the substrate member to push the upper end in a clockwise direction with elasticity;

An upper end of the first ratchet member close to the lower surface of the release piece vertically penetrates the guide hole 21 '' through the lower and the lower head portion 711 which the lower surface is in contact with the upper surface of the upper variable plate and A coil spring 72 mounted between the lower surface of the lower guide piece and a rod 71 installed so as not to be separated downward by a separation prevention ring 73 that is coupled to a portion located on an upper surface of the lower guide piece. 1 release member 70,

It is installed on the upper surface of the upper end of the frame and through holes 91 on both sides through which both vertical portions of the stay rod pass, the front portion 91b of the upper portion is inclined upward toward the front and the lower rear surface ( 91c) is configured to include a guide member 90 formed to be inclined downward at the same angle as the front side toward the rear.

In the shock-responsive seat device according to the present invention configured as described above, the support member 10a and the variable member 40 are normally in the same position as shown in FIG. 2, and when the collision (collision) accident occurs, First hit the backrest 10 to strike the striking plate 43 of the variable member 40, wherein the force of the variable spring 47 is applied to the upper and lower variable plate 41, 42 of the variable member When stronger, the striking plate is pushed back.

In this case, as shown in FIG. 5, the upper and lower ends of the upper and lower variable plates 41 and 42, which are axially installed on the hinge stone piece 431 of the striking plate 43 as the intermediate long axis 46, are pushed backward. Is opened so that the variable spring 47 is extended, and in this process, the lower end of the lower variable plate is axially installed on the fixing piece 13 by the lower long axis 45 penetrating the long axis hole 422. On the other hand, since the upper end of the upper variable plate is axially installed by the upper long axis 44 penetrating the long hole 411, the upper side of the upper variable plate is in the range of the interval proportional to the difference between the length of the long hole and the diameter of the upper long axis. The upper end of the variable plate is raised vertically.

When the upper end of the upper variable plate 41 rises vertically, since the head 711 of the rod 71 which is the first release member 70 is in contact with the upper surface of the upper end, the rod is pushed up to raise it. The upper end of the rod pushes the release piece 52 to rotate the first ratchet member 50 counterclockwise so that the claws 51 supporting the notch 32 deviate from the notch and the vertical rod 31. Of the first ratchet member is excessively rotated because the stopper 53 installed at the upper left side rotates counterclockwise only within the contact range of the outer upper surface of the guide tube 22. The phenomenon does not occur.

In this case, since the contracting force of the traction spring 30 "acts on the elevating member 30 to elevate the elevating member, the coupling pipes 36 and 36 are axially installed at both ends of the horizontal rod 33 by the hinge shaft 35. Since the lower ends of both vertical portions 30'b and 30''b are inserted into ') and the stay rod 30' is bound, the supporting member 10a is also raised.

However, both vertical portions 30'b and 30''b of the stay rod 30 'are inclined upward toward the front surface of the upper portion 91b of the upper portion which faces the sheet forward direction from the middle portion 91a. Since the lower rear surface 91c in the rearward direction is installed to pass through the through hole 91 of the guide member 90 formed to be inclined downward at the same angle as the front surface toward the rear (see FIG. 2), the amount The vertical portion is raised by tilting the upper portion toward the front as shown in FIG. 5 by the binding pipes 36 and 36 'which rotate about the hinge hole 35 and the through hole of the guide member. ) Supports the head to be flipped back at the optimal position in front (see Figure 6).

At this time, both vertical portions 30'b and 30''b of the stay rod 30 'have an upper portion 91'b and a lower portion rear portion 91'c starting from the middle portion 91'a. It can pass through the guide member 90 'having a through hole 91' formed in an arc shape (see Fig. 6).

Applying a force greater than the elasticity of the retracted traction spring 30 ″ shown in FIG. 7 to push the support member 10a downward, the stay rod 30 ′ and the elevating member 30 are lowered together as shown in FIG. 8. Therefore, the supporting member is lowered to its original position, and when the notch 32 of the vertical rod 31 is positioned at the toenail 51 of the first ratchet member 50 as shown in FIG. 9, the first switching spring is completely lowered. By the elasticity of 60, the toenail hooks the notch and returns to the original position.

On the other hand, as one embodiment of the present invention, as shown in Figs. 10 and 11 in the above basic configuration, the second ratchet member 50 ', the second switching spring 60', the second release member 70 ' ), Considering the case where the switching member 80 is added,

The substrate member 20 is further provided with an upper guide piece 21 horizontally extended to the rear at the top of the rear,

The lifting member 30 further includes a plurality of notches 32 'formed at a lower portion of the right vertical rod such that the notch formed at the upper portion of the left vertical rod and the locking direction are reversed.

The lower end portion of the rear surface of the substrate member is installed on the lower side of the guide tube 22 'by the pin shaft 50b, and the lifting member is lifted at the upper end thereof so that the plurality of notches 32' of the vertical rod 31 '. When one notch is located in the vertical slot 221 'on the left side, the claw 51' is placed in the guide tube through the vertical slot and walks the notch. The second ratchet member 50 'having the stopper 53' horizontally extended to the right side of the piece 52 ';

One end is hooked to the upper end of the second ratchet member and the other end is installed on the back of the substrate member to act to push in the clockwise direction when the upper end is crossed in the clockwise direction, counterclockwise if it is crossed in the counterclockwise direction 2 switching springs (60 '),

The lower end is coupled to vertically penetrate the guide hole 21 '' 'of the upper guide piece 21 from the upper side close to the upper surface of the release piece of the second ratchet member, the upper head 711' and the upper guide Coupling spring 72 'mounted between the upper surface of the convenience and a portion located on the lower surface of the upper guide piece is attached to the separation prevention ring (73') so as not to escape upwards, the head portion is the upper surface of the backrest A second release member 70 'that becomes a rod 71' through which the cap button 74 penetrates and is exposed upward; And

The upper end portion is fixed to the horizontal rod 33 so as to be positioned at the right side of the second release member, and the switching member 80 further pushes the upper end portion of the second ratchet member in a clockwise direction when the lifting member is completely lowered. An impact-responsive sheet device is constructed. Operation according to the addition of these components is performed as follows.

When the elevating member 30 is fully raised as shown in FIG. 6 by the action of the traction spring 30 ", the claws 51 of the first ratchet member 50 are notched (not shown) of the vertical rod 31 as shown in FIG. 32) the claw 51 'of the second ratchet member 50' is rotated in the clockwise direction by the second switching spring 60 'while the claw 51' of the second ratchet member 50 ' A plurality of notches 32 'formed in the first pass through the notch is caught.

In this way, when the toenail 51 'is caught by the notch 32', the lifting member 30, which is raised, has a strong repulsion force even when it hits the support member 10a, which is raised so that the head to be flipped back suddenly when the accident occurs is tilted forward. It is to be able to support the headrest so that the headrest does not lower and the head is not tilted back from the position.

At this time, when the accident occurs, the lifting member 30 is lifted by the variable member 40 to move the supporting member 10a to the optimal front position, so that the back part of the occupant hits the backrest 10. The support member is made at the same time hitting the plate 43, so that the support member is already stopped in the optimal front position before the head is turned back.

In addition, forming a plurality of notches 32 'in the lower portion of the vertical rod 31' means that when only one notch 32 'is formed in the lower portion, the supporting member 10a reaches the foremost position and the second portion is completely formed. When the toenail of the ratchet member 50 'hangs the notch and the head is turned back before braking the lifting member 30 to prevent it from descending and hits the supporting member with a force stronger than the elasticity of the traction spring 30 ", the lowering is performed. This is to stop this descent because of fear of the head tilted back.

That is, the impact strength is large, so that the head is curled faster than the reaction of the elevating member due to the elastic force of the towing spring 30 ", which elevates the elevating member 30, or the towing spring 30 " In the case where the elasticity of the support member is weakened or the like, when the support member 10a is completely reclined before the head reaches the position of the forefront, a phenomenon occurs in which the notch is hit by the support member. If the claw 51 'of the second ratchet member 50' is positioned at any one notch, it is immediately caught by the notch by the elasticity of the switching spring 60 ', and the braking member cannot be lowered. Therefore, when the head hits the support member, it is no longer flipped back to prevent a serious neck injury.

Subsequently, when the force striking the striking plate 43 is extinguished, the upper variable plate 41, which has risen as shown in FIG. 5, is pulled down by the contracting force of the elongated variable spring 47, and the striking plate moves forward. In this case, since the upper surface of the variable plate is isolated from the head 711 of the rod 71, the rod is lowered by the elasticity of the coil spring 72 that has been compressed, and the upper end thereof is released. ) Is isolated from the bottom.

In this state, when moving the supporting member 10a that is stopped by moving forward to its original position, the cap of the second release member 70 'exposed through the upper surface of the backrest 10 is first exposed. Press the button 74 to lower the rod 71 'as shown in FIG. 13 so that the lower end presses the release piece 52' of the second ratchet member 50 'to rotate the second ratchet member counterclockwise. At this time, the second ratchet member is not rotated excessively because the stopper 53 'installed on the lower right side rotates counterclockwise only within the contact range with the outer upper surface of the guide tube 22'. Will not.

In this case, the braking state of the vertical rod 31 'is released because the claws 51' supporting the notches 32 'are released from the notches, and when the cap button 74 pressed in this state is released, the compression is released. Since the rod 71 'is raised by the elasticity of the coil spring 72', the lower end thereof is isolated from the upper surface of the release piece 52 '.

At this time, the direction in which the elasticity of the second switching spring (60 ') acts is rotated counterclockwise with the counterclockwise direction of the second ratchet member (50') as shown in Figure 14 because the rod 71 ' The second ratchet member does not rotate clockwise, but stops at a position rotated counterclockwise even if the pressing member 52 'is not pressed. Accordingly, the vertical rod 31' is in a brake release state. It is maintained.

In this state, if the support member 10a is pushed downward by applying a force greater than the elasticity of the contracted traction spring 30 ", the stay rod 30 'and the lifting member 30 are lowered together as shown in FIG. The support member is lowered to its original position and is completely lowered so that when the notch 32 of the vertical rod 31 is positioned at the toenail 51 of the first ratchet member 50 as shown in FIG. 16, the first switching spring ( 60) the toenail hangs the notch.

At this time, since the lower end of the switching member 80 pushes the upper end of the second ratchet member 50 'clockwise, the second ratchet member rotates clockwise so that the claws 51' are perpendicular to the vertical hole 221 '. Through the inside of the guide tube 22 'and contacts the outer surface of the portion of the vertical rod 31' where there is no notch 32 ', the elasticity of the second switching spring 60' Since it is switched to rotate in a clockwise direction, when the elevating member 30 is raised, the toenail immediately hangs the notch 32 '.

In addition, the head portion 711 of the first release member 70 is in contact with the upper surface of the upper variable plate 41 of the variable member 40, the traction spring (30 ") is elongated, all the state to the initial state It is going back.

On the other hand, the impact-responsive sheet device as another configuration of the present invention comprises a substrate member 20, the lifting member 30, the traction spring (30 ''), the wire 103 and the release member 100, As one embodiment, the stay rod 30 ', the guide member 90 and the binding pin 363 may be further installed. Looking at this configuration in detail, as shown in Figure 17 and 18, is installed on the rear of the upper end of the frame 11 inside the backrest 10, is installed vertically on both lower sides of the rear and vertical holes (211, 211 ') A substrate member 20 having formed left and right guide tubes 22 and 22 ';

Left and right vertical rods 31 and 31 'which are longer than the guide tubes and vertically coupled to each other, upper and lower horizontal rods 33 and 33' which are horizontally fixed to upper and lower ends of the vertical rods, and the upper portion An elevating member 30 having binding pipes 36 and 36 'installed at both ends of the horizontal rod, respectively;

The horizontal portion 30'a is mounted on the support member 10a, and the lower ends of the vertical portions 30'b and 30''b extending downward from both ends of the horizontal portion are connected to the binding pipes 36 and 36 '. A stay rod (30 ') which is bound to each other;

Each upper end is not the lifting member to be raised, that is, the upper end of the both sides of the substrate member or the upper end (11a) of the back frame 11, etc., and each lower end is placed on both ends of the lower horizontal rod, the contracting force lifts the elevating member Tow spring 30 "

A wire 103 including a seat fixing part 105 and a spring 103 'which are one end installed at an unshown lower part of the backrest frame 11;

The release member 100 is rotatably supported by the rotating shaft 101 on the rear surface of the substrate member, and is connected to the wire hanger 102 through which the wire end 102 passes through the wire through part 104. )Wow;

It is installed on the upper surface of the upper end of the frame, there is a configuration of the impact-responsive sheet device, characterized in that it comprises a guide member 90 formed on both sides of the through-hole 91 through which both vertical portions of the stay rod passes.

According to this configuration, when the impact of a collision or collision is transmitted to the occupant and the back of the occupant first presses the back of the seat, this pressure is transmitted to the wire 103 so that deformation occurs. This deformation contracts the spring 103 'included in the wire 103 and rotates the release member 100 clockwise as shown in Fig. 19A. At this time, the elevating member 30 connected to the traction spring 30 "whose elasticity is suppressed by the releasing member is lifted up, and the binding pipes 36 and 36 which are axially provided with hinge shafts 35 on both ends of the horizontal rod 33 are lifted. Since the lower ends of both vertical portions 30'b and 30''b are inserted into ') and the stay rod 30' is bound, the supporting member 10a is also raised.

By the way, both vertical portions 30'b and 30''b of the stay rod 30 'are inclined upward toward the front with the upper portion 91b of the upper portion starting from the middle portion 91a, and the lower rear portion 91c. Is installed so as to pass through the through-hole 91 of the guide member 90 formed to be inclined downward at the same angle as the front side toward the rear, so that both vertical portions are centered on the through-hole and the hinge axis 35 of the guide member. When the upper portion is inclined to the front by the rotating binding pipes 36 and 36 'and fully rises, the supporting member 10a supports the head to be flipped backward at the optimum position of the front (FIG. 21A). , See FIG. 21B).

In this state, when the support member 10a is pushed downward by applying a force greater than the elasticity of the retracted traction spring 30 ", the stay member 30 'and the elevating member 30 are lowered together. And the release member 100 returns to its original position as shown in FIG. 19B to stop the elevating member 30 in its initial position.

In each of the lower ends of the binding pipes 36 and 36 ', a portion of the binding pipes 30'c formed in the lower ends of both vertical portions of the stay rods are inserted into the inside through coupling holes 362 formed through the inside of the binding pipes 36 and 36'. There is an impact-responsive sheet device characterized in that a binding pin 363 is provided. In this way, the binding rod 363 and the stay rod and the binding pipe 36 and 36 in which the binding groove 30'c is formed by using the coupling hole 362 partially drilled from the outside to the inside to insert the binding pin 363 and a part of the binding pin. ') Can be easily fixed.

According to another embodiment of the present invention, in addition to the above configuration, one end is installed on the release member 100, and the other end is not the release member, that is, a hinge shaft support part installed on the rear or rear surface of the substrate member ( 107) and a return spring 106 for rotating the bottom surface 100 " of the release member so as to contact the rear surface of the substrate member. An installation example of the return spring 106 is shown in FIG. 20.

As another embodiment of the present invention, in addition to the above-described configuration, as shown in FIG. 21A, both side through-holes 91 of the guide member have the front portion 91b of the upper portion facing forward from the middle portion 91a. There is an impact-responsive sheet device, characterized in that it is inclined upward and the lower rear surface 91c is inclined downward at the same angle as the front surface toward the rear. As shown in Fig. 21B, both vertical portions 30'b and 30''b of the stay rod 30 'have an upper surface 91 without distinction between the front and rear sides, starting from the middle portion 91'a. 'b) is inclined upward in an arc shape toward the front and the lower rear surface 91'c passes through the guide member 90' having a through hole 91 'formed to be inclined downward in an arc shape toward the rear. .

In another embodiment of the present invention, in addition to the above configuration, the release member 100 has a stopper (100 ') in contact with the rear surface of the substrate member to stop the rotation by the rotational force 106 of the return spring. There is an impact responsive sheet, characterized in that. As shown in Fig. 17, when the shape of the stopper 100 'having an elongated wedge shape is adopted, the rotation is stopped more efficiently than when it is relatively short or rounded.

Figure 1a is a perspective view showing an example of a conventional variable movement headrest

Figure 1b is a side view showing the operating state of the variable movable headrest of Figure 1a

2 is a schematic diagram and a first operation diagram of the present invention;

3 is an exploded view of the present invention

4 is an assembly view of the present invention

5 is a second operation diagram of the present invention;

6 is a third operation of the present invention

7 is a first operation of the lifting member of the present invention

8 is a second operation diagram of the elevating member of the present invention;

9 is a third operation of the lifting member of the present invention

10 is an exploded view of an embodiment of the present invention.

11 is an assembly view of an embodiment of the present invention.

12 is a first operation diagram of an embodiment of the present invention;

13 is a second operation diagram of an embodiment of the present invention;

14 is a third operation diagram of an embodiment of the present invention;

15 is a fourth operation diagram of an embodiment of the present invention;

16 is a fifth operation diagram of an embodiment of the present invention;

17 is an exploded view showing another example of the present invention

18 is an assembly view showing another example of the present invention

19A is a schematic diagram illustrating another example of the ascending process of the present invention.

19B is a schematic diagram of a return process of another example of the present invention;

20 is a schematic view of a return spring of another example of the present invention.

Figure 21a is a schematic view of a guide member of another example of the present invention

21B is a schematic view of a guide member in another example embodiment of the present invention;

* Description of the symbols for the main parts of the drawings *

10: backrest 10a: support member

11: frame 11a: upper part of frame

12: crosspiece 13: fixed piece

20: substrate member 21, 21 ': upper and lower guide piece

21 ’’: The guide 21 '’’: The guide

211, 211 ': Left and right vertical holes 22, 22': Left and right guide tubes

23, 23 ': left and right support piece 231: shaft work

30: lifting member 30 ': stay rod

30'a: horizontal portion 30'b, 30''b: vertical portion

30'c: Binding Groove 30 ": Traction Spring

31, 31 ': left and right vertical rod 32, 32': notch

33, 33 ': horizontal rod 36, 36': upper and lower horizontal rod

362: coupling hole 363: binding pin

40: variable member 41: upper variable plate

411: long hole 412: hinge

42: lower side variable plate 421: hinge protrusion

422: long axis 43: hitting plate

431: hinge stone 432: hinge shaft ball

44: upper long axis 45: lower long axis

46: middle long axis 47: variable spring

50, 50 ': first and second ratchet members 51, 51': toenail

52, 52 ': release 53, 53': stopper

60, 60 ': 1st, 2nd switching spring 70, 70': 1st, 2nd release member

71, 71 ': Rod 711, 711': Head

72, 72 ': coil spring 73, 73': release prevention ring

74: cap button 80: switching member

90, 90 ': guide member 91, 91': through hole

91a, 91'a: middle part 91b, 91'b: front part of upper part

91c, 91'c: rear side of the lower part 100: release member

100 ': Stopper 100' ": Bottom

101: rotation axis 102: wire hook

103: wire 103 ': spring

104: wire penetration portion 105: sheet fixing portion

106: return spring 107: hinge shaft support

Claims (17)

It is installed in the frame inside the backrest, is installed vertically on both lower sides of the rear and the guide pipes formed with a vertical hole penetrating vertically and vertical holes penetrating right and left the middle part respectively, and downwardly isolated from each other between the guide pipes. A substrate member having extended support pieces and a lower guide piece extending horizontally rearward between the support pieces; Left and right vertical rods longer than the guide tubes and vertically coupled to each other, a notch formed on an upper portion of the left vertical rod, and vertical horizontal rods fixed horizontally to upper and lower ends of the vertical rods; An elevating member having coupling tubes axially installed at both ends of the upper horizontal rod; A pair of traction springs each of which is coupled to a fixed point spaced apart from the lower horizontal rod, each lower end of which is lifted by the lifting members; An upper variable plate having a long hole formed at the upper end, a lower variable plate having a long axis hole formed at the lower end thereof, a striking plate having a lower end of the upper variable plate and an upper end of the lower variable plate arranged at the rear with a middle long axis like a hinge; An upper major axis for axially installing the upper end to the shaft hole of the support piece by penetrating the long hole of the upper variable plate and a lower major axis for axially installing the lower part to the frame through the major axis hole of the lower variable plate, and each of the upper and lower variable plates A variable member having a variable spring mounted on the rear by a top and bottom end; A first ratchet member having a shaft installed at a rear side of the substrate member positioned on the right side of the left guide tube, the first ratchet member having a claw attached to the lower left side to hang the notch of the left vertical rod, and a release piece attached to the upper right side; ; A first switching spring having one end hooked to the left side of the lower end of the first ratchet member and the other end hooked to the rear surface of the substrate member, and rotating the first ratchet member clockwise; A rod having an upper end coupled to vertically penetrate the lower guide piece downward from near the lower surface of the release piece of the first ratchet member, a coil spring mounted between the head of the lower end of the rod and the lower surface of the lower guide piece; And a first release member having a release preventing ring engaged with the upper surface of the lower guide piece of the rod. The method of claim 1, The substrate member further comprises an upper guide piece horizontally extended to the rear at the upper end of the rear surface; The elevating member further includes a notch formed at an upper portion of the left vertical rod and a notch formed at a lower portion of the right vertical rod so that the locking direction is reversed. A second ratchet member which is installed on the rear side of the substrate member so as to be positioned on the left side of the right guide tube, and which has a claw attached to the upper right side to hang the notch of the right vertical rod and a release piece attached to the lower left side; Wow; One end is hooked to the upper end of the second ratchet member and the other end is installed on the back of the substrate member, the second switching spring that rotates in the clockwise direction when the upper end is turned clockwise, counterclockwise if it is crossed in the counterclockwise direction and; A rod having a lower end coupled to penetrate the upper guide piece vertically from above and close to an upper surface of the release piece of the second ratchet member, and having an upper end exposed to an upper surface of the backrest; an upper surface of the upper head and the upper guide piece of the rod; A second release member having a coil spring mounted therebetween and a release preventing ring engaged with a portion located on a lower surface of the upper guide piece of the rod; And The upper end portion is fixedly installed on the upper horizontal rod of the elevating member to be positioned on the right side of the second release member, and when the elevating member is completely lowered, the shifting member further pushes the upper end of the second ratchet member in a clockwise direction. Impact responsive sheet device, characterized in that. The method according to claim 1 or 2, A stay rod having a horizontal portion mounted thereon, and a lower end portion of both vertical portions extended downwardly from both ends of the horizontal portion, the stay rods being coupled to the binding tubes, respectively; A guide member installed on an upper surface of the upper end of the frame and having through holes formed at both sides thereof, through which both vertical parts of the stay rod pass; Each of the lower end of the binding pipe, the impact response sheet, characterized in that a binding pin is installed to a part of the coupling groove formed in the lower end of both vertical portions of the stay rod is inserted into the interior through the coupling hole formed to communicate with the inside Device. The method according to claim 1 or 2, The variable spring, the impact response seat device, characterized in that installed on both sides of the rear of the upper and lower variable plates. The method of claim 3, Both side through-holes of the guide member, the impact-responsive sheet device, characterized in that the front surface of the upper portion is inclined upward toward the front and the lower rear surface is inclined downward at the same angle as the front surface toward the rear from the middle portion. . The method of claim 3, Both side through-holes of the guide member, the impact-responsive sheet device, characterized in that formed in the shape of an arc of the front side and the lower rear side of the upper portion starting from the middle portion. The method according to claim 1 or 2, An impact-responsive sheet device comprising a stopper attached to the first ratchet member. The method of claim 2, An impact-responsive sheet device comprising a stopper attached to each of the first ratchet member and the second ratchet member. The method of claim 2, The notch formed on the right vertical rod, the impact-responsive sheet device, characterized in that to form a plurality of vertically continuous in the lower middle.    A substrate member installed in a frame inside the backrest and installed vertically on both lower sides of the rear surface and having guide tubes having vertical holes formed therein;    Left and right vertical rods longer than the guide tubes and vertically coupled to each other, vertical horizontal rods fixed horizontally at upper and lower ends of the vertical rods, and axially installed at both ends of the upper horizontal rod, respectively. An elevating member having pipes; A pair of traction springs, each upper end coupled to a fixed point spaced higher than the lower horizontal rod, and each lower end hooked on both ends of the lower horizontal rod so that the retraction force raises the elevating member;    A wire having a seat fixing part and a spring, which is one end installed at a lower portion of the backrest frame;    And a release member connected to a rear surface of the substrate member by a rotating shaft, the release member being connected to a wire hook capable of hanging the other end of the wire. The method of claim 10, A stay rod having a horizontal portion mounted thereon, and a lower end portion of both vertical portions extended downward from both ends of the horizontal portion, the stay rods being respectively bound to the binding tubes; A guide member installed on an upper surface of the upper end of the frame and having through holes formed at both sides thereof, through which both vertical parts of the stay rod pass; Each of the lower end of the binding pipe, the impact response sheet, characterized in that a binding pin is installed to a part of the coupling groove formed in the lower end of both vertical portions of the stay rod is inserted into the interior through the coupling hole formed to communicate with the inside Device. The method according to claim 10 or 11, wherein One end is mounted to the release member, the impact responsive seat device characterized in that it has a return spring to rotate the bottom surface of the release member in contact with the back of the substrate member. The method according to claim 10 or 11, wherein Both side through-holes of the guide member, the impact-responsive sheet device, characterized in that the front surface of the upper portion is inclined upward toward the front and the lower rear surface is inclined downward at the same angle as the front surface toward the rear from the middle portion. . The method according to claim 10 or 11, wherein Both side through-holes of the guide member, the impact-responsive sheet device, characterized in that formed in the shape of an arc of the front side and the lower rear side of the upper portion starting from the middle portion. The method according to claim 10 or 11, wherein And the release member has a stopper which contacts the rear surface of the substrate member and stops the rotation by the rotational force of the return spring. The method according to claim 1 or 10, An impact-responsive seat device, characterized in that the upper fixing point of each traction spring is the upper end of the backrest frame. The method according to claim 1 or 10, An impact-responsive seat device, characterized in that the upper fixing point of each traction spring is the upper side of both sides of the substrate member.

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