JPH0433144Y2 - - Google Patents

Description

[Detailed description of the invention] Field of the invention This invention is a child safety seat for automobiles that guarantees the safety of infants or children carried in the car by keeping them in a fixed position at all times while the car is in motion. In particular, the present invention relates to a child safety seat for an automobile that is equipped with a safety guard that is arranged in front of the seat and prevents an infant or child from jumping out of the seat.

Background of the Invention This type of child safety seat for an automobile is firmly fixed onto a car seat using, for example, a belt provided in the automobile. Therefore, an infant or child held securely by the safety belt and safety guard of a child safety seat in a car can be protected even when, for example, braking suddenly or driving around a sharp turn, or in a collision. Even when you wake it up, it will remain in a fixed position, which is good for safety.

However, if a collision occurs while driving, for example, an infant or child will receive a significant impact from the safety guard and safety belt. Therefore, it is desired to alleviate this impact force.

Purpose of the invention Therefore, the purpose of the invention is to provide a child safety seat for a car that can reduce the impact force applied to an infant or child when a car has a collision.

Structure and effects of the invention This invention consists of a seat for seating an infant or child, a safety guard placed in front of the seat, the left and right sides of the safety guard, and the left and right sides of the bottom of the seat. This child safety seat for an automobile includes a left support rod and a right support rod that connect to the right side surface, and a left connection member and a right connection member that are respectively incorporated into a safety guard. The left connecting member and the right connecting member each have their upper ends rotatably connected to the left and right sides of the safety guard, and their lower ends rotatably connected to the left and right sides of the bottom of the seat. Ru. The left connecting member and the right connecting member are each incorporated into the safety guard so that they can slide back and forth within a predetermined range and can rotate left and right. The child safety seat for an automobile includes a left spring and a right spring, respectively, which bias the left connecting member and the right connecting member and the safety guard so that they slide toward each other. The rear end portions of the left connecting member and the right connecting member are adapted to engage with the left rear portion and right rear portion of the seat, respectively, and are released from the engagement when rotated in a predetermined direction. A child safety seat for an automobile includes a restoring spring that urges the left connecting member and the right connecting member to rotate in a direction to engage the left rear and right rear of the seat, respectively, and a restoring spring that is connected to the left connecting member and the right connecting member. The apparatus further includes a rotating operation means. The rotation operating means operates to rotate the left coupling member and the right coupling member against the force of the restoring spring, thereby disengaging them from the left and right rear portions of the seat.

According to this invention, the safety guard is configured to be able to slide back and forth, and is always biased to slide rearward by the action of the left spring and the right spring. It is possible to reduce the impact force that infants or children receive when an accident occurs.

This will be explained more specifically. In the event of a collision while driving, the infant or child's body tends to jump forward from the child safety seat for an automobile due to inertia. However, jumping forward is prevented by safety belts and safety guards. That is, the infant or child's body is held firmly in place by the safety belt, but still moves forward on the seat due to inertia. This forward movement is prevented by the infant or child's body hitting the safety guard. Here, if the safety guard is fixed to the seat and cannot be moved at all, the impact force when the infant or child's body hits the safety guard will be great. However, with this design, the infant or child's body can move further forward with the safety guard even after hitting the safety guard, and part of the impact force at the time of collision is transferred to the left spring and the right spring. The shock force experienced by the infant or child is lessened as it is absorbed by the spring.

In addition, the left connecting member and right connecting member are removably attached to the seat, and the left support rod and right support rod are rotatably connected to the bottom of the seat, so the safety guard can be moved to the lower front part. can be done. Therefore, the presence of the safety guard does not impede the loading or unloading of an infant or child into or out of the child safety seat for an automobile.

DESCRIPTION OF EMBODIMENTS First, an outline of an embodiment of this invention will be explained using FIGS. 1 to 4, and then each component will be explained in detail.

An automobile child safety seat 1 shown in FIG. 1 is firmly fixed onto a car seat using, for example, a belt provided in the automobile. The seat 2 of the automobile child safety seat 1 has a seat portion 3 and a backrest portion 4.
An infant or child will sit here. A safety belt 5 is attached to the automobile child safety seat 1 in order to firmly hold the body of an infant or child sitting on the seat. Also,
As shown in the figure, a safety guard 6 is provided to be located in front of the seat 2. This safety guard 6 is shown in a plan view in FIG. 3, and in a side view in FIG.

With reference to FIGS. 1, 3 and 4, a description will be given of how the safety guard 6 is attached to the seat 2 of the child safety seat 1 for an automobile. Upper end portions of a left support rod 9 and a right support rod 10 are rotatably connected to the left side surface 7 and right side surface 8 of the safety guard 6, respectively. The lower ends of the left support rod 9 and the right support rod 10 are rotatably connected to the left side surface 11 and right side surface 12 of the bottom of the seat 2, respectively. In addition, Safety Guard 6
A left connecting member 15 and a right connecting member 16 are incorporated in the left rear portion 13 and right rear portion 14, respectively. The left connecting member 15 and the right connecting member 16 are each provided so as to be slidable in the front and rear directions with respect to the safety guard 6. and,
Although not shown in FIGS. 1 to 4, each of the left connecting member 15 and the right connecting member 16 and the safety guard 6 are brought closer to each other, in other words, the safety guard 6 is slid rearward. A biasing left spring 17 (FIG. 7) and a right spring are arranged. Therefore, normally the safety guard 6 is located at the position shown by the solid line in FIG. It moves together with the infant or child's body against the force of the spring and the right spring to the position shown in phantom lines in FIG. In this way, the impact force experienced by the infant or child is reduced.

The left connecting member 15 and the right connecting member 16 are removably attached to the left rear 18 and right rear 19 of the seat 2, respectively. The state shown in FIG. 2 is obtained by removing the left connecting member 15 and the right connecting member 16 from the seat 2, and then folding the safety guard 6 forward. If the safety guard 6 is located at the front lower part of the seat as shown in Figure 2, the presence of the safety guard 6 will be an obstacle when placing or removing an infant or child from the seat 2. Never.

Each component will be specifically explained below.
Furthermore, as is clear from Figures 1 and 2,
The main part of this idea is the left side 7 of the safety guard 6.
and is provided in relation to the right side surface 8. Since the configuration provided in connection with the left side surface 7 and the configuration provided in connection with the right side surface 8 are substantially the same, only the configuration related to the left side surface 7 will be extracted and explained below. Description of the configuration related to the right side surface 8 will be omitted.

In FIG. 5, the safety guard 6 and the left connecting member 15 are shown. Note that in this figure, the upper half of the safety guard 6 is removed. The left connecting member 15 is connected to the safety guard 6
It is incorporated in the holder so that it can rotate left and right around a pin 20, which will be described later. The rear portion of the left connecting member 15 protrudes from the rear surface of the safety guard 6, and a right protrusion portion 21 that protrudes to the right is formed at this rear end portion. Correspondingly, a left receiving recess 22 that can engage with the right protrusion 21 is formed in the left rear portion 18 of the seat 2 . The right protruding portion 21 of the left connecting member 15 and the left protruding portion of the right connecting member 16 (not shown) form a left receiving recess 22 and a right receiving recess formed in the left rear 18 and right rear 19 of the seat 2, respectively. When engaged, the safety guard 6 is attached to the seat 2 as shown in FIG. On the other hand, the 6th
As shown in the figure, when the right protrusion 21 and the left protrusion are disengaged from the left receiving recess 22 and the right receiving recess, the safety guard 6 is inserted into the seat 2 as shown in FIG. can be knocked down in front of.

The left connecting member 15 and the right connecting member 1 described above
6 and the left rear portion 18 and right rear portion 19 of the seat 2 and the release of the engagement is achieved by rotating the left connecting member 15 and the right connecting member 16. This rotation operation of the left connecting member 15 and the right connecting member 16 is performed by a restoring spring 23 and a rotation operation means 24. The restoring spring 23 urges the left connecting member 15 to rotate in a direction in which it engages with the left rear portion 18 of the seat 2 . In other words, the left connecting member 15 is urged to rotate counterclockwise in the figure. The rotation operation means 24 includes four plates (only three plates 25, 26, and 27 are shown in the figure), an operation button 28, and a pair of guide members 29. The plate 25 has its left end rotatably connected to the front end of the left connecting member 15, and its right end rotatably connected to the left end of the plate 26. Both the left end of the plate 27 and the right end of the plate 26 extending from the right connecting member 16 via one plate are connected to the pin 3.
0 on the operating button 28. The front part of the operation button 28 is configured to protrude to the front of the safety guard 6. The pair of guide members 29 are located on both sides of the operating button 28 and guide the sliding movement of the operating button 28 in the front-rear direction. Further, an inclined surface 29a is formed at the rear end portion of the pair of guide members 29. Preferably, a rolling element is disposed between the operation button 28 and the safety guard 6 in order to make the operation button 28 slide smoothly. In this embodiment, a roller 3 is used as a rolling element.
1 is used. Note that balls or the like may be used as the rolling elements.

When attempting to remove the safety guard 6 from the seat 2, the operation button 28 can be pulled forward. As the operation button 28 moves forward,
The plates 26 and 27 each come into surface contact with the inclined surface 29a of the guide member 29, as shown in FIG. That is, the plate 26 rotates counterclockwise in the figure, and the plate 27 rotates clockwise in the figure. Therefore, plate 2
5 is pulled by the plate 26 and moves to the right,
As a result, the left connecting member 15 rotates against the force of the restoring spring 23, and the right protrusion 21 disengages from the left receiving recess 22 of the seat 2. Similarly, right connecting member 1
6 and the right rear part 19 of the seat 2 are also disengaged. In this way, the safety guard 6 can be easily removed from the seat 2 by pulling the operation button 28 protruding from the front surface of the safety guard 6.

In addition, to ensure smooth operation of each plate,
It is desirable to form elongated holes 25a at the connecting portions between the plates 25 and 26, and at the connecting portions between the plates 27 and the remaining plates (not shown).

Referring to FIG. 7, which shows a cross-sectional view taken along the line - in FIG. 3, the left connecting member 15 is formed with a long hole 32 extending in the front-rear direction. The safety guard 6 is provided with a pin 20 positioned within the elongated hole 32. In this way, the left connecting member 15 and the safety guard 6 are relatively slidable to the extent that the pin 20 can move within the elongated hole 32. Further, a left spring 17 is arranged between the front part of the left connecting member 15 and the rear end part of the safety guard 6. Due to the action of the left spring 17, the safety guard 6 and the left connecting member 15 are always urged to slide toward each other, in other words, the safety guard 6 is biased to slide backward. become. The state shown in FIG. 7 is a state in which the pin 20 is in contact with the rear end of the elongated hole 32, that is, a state in which the safety guard 6 is located at the rearmost position. For example, when an infant or child's body collides with the safety guard 6 due to a collision while driving a car, the safety guard 6 moves forward against the force of the left spring 17 and the right spring (not shown). to reduce impact force on infants or children.

FIG. 8 shows a cross-sectional view taken along line - in FIG. 4. A holder 39 is fixed to the safety guard 6, and an upper end fixing bracket 40 is fixed to the upper end of the left support rod 9. The holder 39 and the upper end fixing bracket 40 are connected via a connecting pin 41 in a relatively rotatable state. This specific configuration is shown in Figure 9 along with Figure 8.
This will be explained using FIGS. 11 to 11.

FIG. 9 shows the holder 39 shown in FIG.
The shape of is shown in detail. The holder 39 has leg portions 42 having a rectangular cross-sectional shape. A hole 43 having a shape corresponding to the leg portion 42 is formed in the safety guard 6. Therefore,
The holder 39 is fixed to the safety guard 6 with its legs 42 fitted into the holes 43.
A circular through hole 44 is formed in the center of the holder 39, and a connecting pin 41 shown in FIG. 8 is inserted through the through hole 44. Figures 9C and 9D
As shown in the figure, the holder 39 has a through hole 4
Two arc-shaped elongated holes 45 and 46 are formed that extend along an arc having a center of curvature at 4.

FIG. 10 shows the upper securing bracket 40 shown in FIG. 8 in greater detail. A through hole 47 is formed in the center of the upper end fixing bracket 40, and a connecting pin 41 shown in FIG. 8 is inserted through the through hole 47. Upper end fixing bracket 40
has a receiving recess 48 having a square cross-section, into which the upper end of the left support rod 9 having a square cross-section is fitted. Further, the upper end fixing bracket 40 is provided with protrusions 49 and 50 that are positioned within the arcuate long holes 45 and 46 of the holder 39 described above. In this embodiment, the protrusions 49 and 50 have an arcuate shape extending along an arc centered on the through hole 47. And the length of the arc of the protrusions 49, 50 is
It is made shorter than the arcuate long holes 45 and 46 of the holder 39.

The positional relationship between the arcuate long holes 45, 46 of the holder 39 and the protrusions 49, 50 of the upper end fixing bracket 40 is clear from FIG. In addition, in FIG. 11, the projections 49 and 55 of the upper end fixing bracket 40 are
is shown in cross section, and the safety guard 6 and left support rod 9 are shown in imaginary lines. As shown in the figure, the left support rod 9 has protrusions 49 and 50 formed in an arcuate long hole 45,
It can be rotated relative to the safety guard 6 within the range within which it can move. The state shown in FIG. 11A is a normal use state, and the state shown in FIG. 11B is a state when the safety guard 6 slides forward. By limiting the rotatable range of the left support rod 9 as described above, the following advantages can be obtained.

The first advantage is that the elongated hole 32 shown in FIG.
Also, the burden on the pin 20 can be reduced. That is, the end of the forward slide of the safety guard 6 is defined by the pin 20 coming into contact with the front end of the elongated hole 32. Here, if the left support rod 9 and the safety guard 6 can rotate freely, the load to prevent the safety guard 6 from sliding forward is applied to the elongated hole 3.
2 and the pin 20. Therefore, if the range in which the pin 20 can move within the elongated hole 32 and the range in which the protrusions 49 and 50 of the upper end fixing bracket 40 can move within the arcuate elongated holes 45 and 46 of the holder 39 can be matched, the safety guard The load to prevent 6 from sliding forward will be distributed to two places.

The second advantage is achieved when the safety guard 6 is moved to the lower front position as shown in FIG. That is, when the child safety seat for a car is placed in the state shown in FIG. 2 while the car is running, if the safety guard 6 can rotate freely, the safety guard 6 will also move in response to the shaking of the car. It will oscillate. This is not desirable from a safety standpoint, and may even damage the car seat. Such drawbacks can be eliminated by limiting the rotation range of the safety guard 6. Furthermore, by limiting the rotation range of the safety guard 6, the operation of moving the safety guard 6 from the state shown in FIG. 2 to the state shown in FIG. The operation when attaching the seat 2 to the seat 2 becomes easy.

Referring again to FIG. 8, the left side surface 11 of the seat bottom
is provided with a brake member 51 that is slidable in the left-right direction. A lower end fixing bracket 52 and a mounting bracket 53 are fixed to the lower end of the left support rod 9. The brake member 51, a lower end fixing bracket 52 and a mounting bracket 53 fixed to the left support rod 9 are connected via a connecting pin 54 so as to be able to rotate relative to each other. This specific configuration will be explained using FIG. 8 and FIGS. 12 to 17.

12-14 show the lower end securing bracket 52, and FIG. 15 shows the mounting bracket 5.
3 is shown. The lower end fixing bracket 52 and the mounting bracket 53 have through holes 55 and 56 in their centers, respectively. A connecting pin 54 shown in FIG. 8 is inserted through the through holes 55 and 56. In addition, receiving recesses 57 and 58 each having a rectangular cross-sectional shape are formed on the surfaces of the lower end fixing bracket 52 and the mounting bracket 53 that face each other. Left support rod 9 with a square cross-sectional shape
The lower end portions of are positioned within the receiving recesses 57, 58. Note that, referring to FIG. 8, a cover 59 is attached to the side surface of the mounting bracket 53.

As is clear from FIGS. 12 and 13,
A brake member 51 is attached to the lower end fixing bracket 52.
A circular recess 60 is formed on the side opposite to. A plurality of engagement recesses 61 are formed on the bottom surface of the circular recess 60 along a circle centered on the through hole 55 . Each engagement recess 61 has a tapered shape whose width decreases as it becomes deeper.

16 and 17, the brake member 5
1 is shown. The brake member 51 has two engaging protrusions 62 on the side surface facing the lower end fixing bracket 52, which can engage with the respective engaging recesses 61 described above. Each engagement protrusion 62 has a tapered shape whose width becomes narrower as it becomes higher. Further, a through hole 63 is formed in the center of the brake member 51,
The connecting pin 54 is inserted through the through hole 63.

Now, let's take a look at the shape of the brake member 54.
The brake member 51 has a substantially cylindrical shape, but has two arcuate notches 64 on its outer peripheral surface. A receiving hole 65 for slidably receiving the brake member 51 is formed in the left side surface 11 of the seat bottom shown in FIG. This receiving hole 65
has a shape corresponding to the portion of the brake member 51 where the two arcuate notches 64 described above are formed, and supports that portion in a slidable manner. Therefore, even if a rotational force is applied to the brake member 51, the brake member 51 will not rotate relative to the left side surface 11 of the seat bottom.

Referring to FIG. 17, the brake member 51 includes:
A storage opening 66 is formed extending from the side located within the seat 2 to near the side facing the lower end anchoring bracket 52. A spring 67 is housed in the housing opening 66, as shown in FIG. One end of the spring 67 is in contact with the bottom surface of the storage opening 66, and the other end is in contact with a head 68 formed at one end of the connecting pin 54. Note that a head 69 is also formed at the other end of the connecting pin 54.
9 is in contact with the side surface of the mounting bracket 53.
Therefore, the brake member 51 is always urged by the spring 67 to slide in one direction, that is, to the right in FIG. This direction is the engagement protrusion 6 of the brake member 51.
2 and the engagement recess 61 of the lower end fixing bracket 52 are engaged with each other.

In this way, the brake member 51 applies a braking force to the rotation of the left support rod 9. That is, by positioning the engagement protrusion 62 within the engagement recess 61, a force for preventing rotation of the left support rod 9 is exerted. This blocking force increases as the strength of the spring 67 increases. For example, when a predetermined rotational force is applied to the left support rod 9 as the safety guard 6 slides due to a collision, the brake member 51 slides against the force of the spring 67. As a result, the engaging protrusion 6
2 is disengaged from the engagement recess 61, allowing the left support rod 9 to rotate.

Note that the shapes of the engagement protrusion 62 and the engagement recess 61 are selected so as to achieve the above-mentioned sliding operation. For example, as described above, the engagement protrusion 62 and the engagement recess 61 each have a tapered shape.

As described above, by adopting a configuration that applies a braking force to the rotation of the left support rod 9, the following advantages can be obtained. That is, if such a configuration were not provided, the left spring 17 (and the right spring) shown in FIG. 7 would have to receive a large impact force by itself. For this purpose, a fairly strong spring is required. However, if the configuration is such that a braking force is applied to the rotation of the left support rod 9, a large impact force will be absorbed in two places, and the range of springs to be selected will be wide. becomes.

FIG. 18 shows another example of the rotation operation means for rotating the left connection member 15 and the right connection member 16. The rotation operation means 70 shown includes an operation button 71, a pair of gears 72 arranged on both sides of the operation button 71, and a string 73. The front part of the operation button 71 protrudes from the front of the safety guard 6, and teeth are formed on both sides thereof. A pair of gears 72
has teeth that mesh with the teeth of the operation button 71. Further, the string 73 connects the left connecting member 15, the operation button 71, and the right connecting member 16. Furthermore, like the rotation operation means described above, between the operation button 71 and the safety guard 6,
A roller 31 is arranged to make the operation button 71 slide smoothly. From the state shown in FIG. 18, if you pull the operation button 71 forward, the string 73
The central part of the left connecting member 1 moves forward, and as a result, the left connecting member 1
5 and the right connecting member 16 are rotated against the force of the restoring spring 23.

FIG. 19 shows still another example of the rotation operation means. The rotation operation means 74 shown includes an operation button 75 whose front side protrudes from the front surface of the safety guard 6, and a pair of pulleys 76 arranged so as to come into contact with both sides of the operation button 75.
and a string 77. The string 77 connects the left connecting member 15, the operation button 75, and the right connecting member 16. Note that this string 77 is different from the rotation operation means 70 shown in FIG.
It is extended so as to wrap around the front part of 6. Therefore, if the operation button 75 is pushed backward from the state shown in FIG. Rotate against force.

FIG. 20 shows still another example of the rotation operation means. The rotation operation means 78 shown includes an operation button 79 whose front part protrudes from the front of the safety guard 6, and 1s located on both sides of the operation button 79 to guide the sliding movement of the operation button 79 in the front and back direction. It includes a pair of guide members 80, four plates (three plates 81, 82, 83 are shown in the figure), and a torsion spring 85. Plate 81 and plate 82 are rotatably connected to each other via pin 86. Further, the left end of the plate 81 is rotatably connected to the front end of the left connecting member 15. Plate 82 and plate 83 are both rotatably connected to operation button 79 via pin 84 . A torsion spring 85 is arranged around the pin 84. This torsion spring 85 is
The plate 82 and the plate 83 are biased so that they are in an open relationship, that is, the plate 82 is rotated clockwise and the plate 83 is rotated counterclockwise in the figure. An inclined surface 80a is formed at the rear end portions of the pair of guide members 80. In the state shown in FIG. 20, the right protruding portion 21 of the left connecting member 15 engages with the left receiving recess 22 formed in the left rear portion 18 of the seat 2, and the right connecting member 16
is engaged with the right rear portion 19 of the seat 2. From this state, if the operation button 79 is pulled forward, the plates 82 and 83 will be moved between the pair of guide members 8
0, they rotate in a direction toward each other against the force of the torsion spring 85. Finally, the state shown in FIG. 21 is reached. In this state, the plate 81 moves to the right, and the left connecting member 15 also rotates in a predetermined direction accordingly. As a result, the right protrusion 21 of the left connecting member 15 and the left rear part 1 of the seat 2
8 is disengaged from the left receiving recess 22 formed therein. Similarly, the engagement between the right connecting member 16 and the right rear portion 19 of the seat 2 is also disengaged. In the embodiment shown in FIGS. 20 and 21, a torsion spring is used as the restoring spring to bias the left connecting member and the right connecting member to rotate in a direction to engage the left rear and right rear portions of the seat, respectively. 85 was used. This torsion spring 85 is different from each of the above-mentioned examples and is arranged so that it can directly operate the rotation operation means. On the other hand, in each of the examples described above, the restoring spring 23 is arranged so as to come into contact with the left connecting member 15 and the right connecting member 16.

FIG. 22 and FIG. 23 show still another example of the rotation operation means. The rotation operation means 87 shown includes an operation button 88 whose front part protrudes from the front of the safety guard 6, and four plates (three plates 89, 90, 91 in the figure).
). Plate 89 and plate 90 are rotatably connected to each other via pin 92. Further, the left end of the plate 89 is rotatably connected to the front end of the left connecting member 15. Both the plate 90 and the plate 91 have pins 93
It is rotatably connected to the operation button 88 via. The operation button 88 is connected to the pin 9 on the operation button.
3 and a pin 94 fixedly provided on the safety guard 6, the restoring spring 95 is always urged to move rearward. Further, as shown in the figure, long holes 96 and 97 extending in a predetermined direction are formed in plates 90 and 91 connected to the operation button 88, respectively. Pins 98 and 99 fixedly provided on the safety guard 6 are located in the long holes 96 and 97.

In the state shown in FIG. 22, the right protruding part 21 of the left connecting member 15 engages with the left receiving recess 22 formed in the left rear part 18 of the seat 2, and the right connecting member 16 engages with the left receiving recess 22 formed in the left rear part 18 of the seat 2. is engaged in. From this state, when the operating button 88 is pulled forward, the plates 90 and 91 rotate toward each other while being guided by pins 98 and 99 located in the elongated holes 96 and 97, respectively. Finally, the state shown in FIG. 23 is reached. In this state, plate 89
moves to the right, and the left connecting member 15 also rotates in a predetermined direction accordingly. As a result, the right protrusion 21 of the left connecting member 15 disengages from the left receiving recess 22 formed in the left rear portion 18 of the seat 2.
Similarly, the engagement between the right connecting member 16, the seat 2, and the right rear portion 19 is also disengaged.

In each of the embodiments described above, the left connecting member 15 and the right connecting member 16 have a right protrusion 21 and a left protrusion, and the left rear part 18 and the right rear part 1 of the seat 2
9 was formed with a left receiving recess 22 and a right receiving recess that engage with them. However, the opposite configuration may be used, that is, the left connecting member 15 and the right connecting member 16 are formed with recesses, and the left rear part 18 and right rear part 19 of the seat 2 are provided with protrusions that engage with the recesses.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of this invention. FIG. 2 is a perspective view showing the state after the safety guard 6 has been moved from the state shown in FIG. 1 to the front lower part. FIG. 3 is a plan view showing the left portion of the safety guard 6 shown in FIG. 1. FIG. 4 is a view of the configuration related to the safety guard 6 shown in FIG. 1, viewed from the left side. FIG. 5 is a plan view showing the left portion of the safety guard 6, with the upper half of the safety guard 6 removed. FIG. 6 is a diagram showing the state after the operation button 28 is pulled forward from the state shown in FIG. FIG. 7 is a cross-sectional view taken along line - in FIG. 3. Figure 8 shows the 4th
FIG. 9th A
The figure is a front view of the holder 39 shown in FIG. FIG. 9B is a left side view of the holder 39. FIG. 9C is a right side view of the holder 39.
FIG. 9D is a cross-sectional view taken along the line - of FIG. 9C. 10A is a right side view of the upper securing bracket 40 shown in FIG. 8. FIG. FIG. 10B is a front sectional view taken along line - of FIG. 10A. FIG. 10C is a left side view of the upper securing bracket 40. FIG. 11A is a side view showing a state in which the projections 49 and 50 of the upper end fixing bracket 40 are located in the arcuate long holes 45 and 46 of the holder 39. Figure 11B is the same as Figure 11A.
This shows the state after the left support rod 9 has rotated counterclockwise from the state shown in the figure. FIG. 12 is a perspective view of the lower end securing bracket 52 shown in FIG. FIG. 13 is a view cut at the center of the lower end fixing bracket 52 shown in FIG. 12. FIG. 14 is a left side view of the lower end fixing bracket 52 shown in FIG. 12. 15A is a side view of mounting bracket 53 shown in FIG. 8. FIG. 15th
Figure B is a front sectional view of the mounting bracket 53. FIG. 15C is a right side view of the mounting bracket 53. FIG. 16 is a perspective view of the brake member 51 shown in FIG. 8. FIG. 17 is a diagram cut at the center of the brake member shown in FIG. 16. FIG. 18 is a plan view showing another example of the rotation operation means for rotating the left connection member 15 and the right connection member 16. FIG. 19 is a plan view showing still another example of the rotation operation means. FIG. 20 is a plan view showing still another example of the rotation operation means. FIG. 21 is a diagram showing the state after the operation button 79 is pulled forward from the state shown in FIG. 20. FIG. 22 is a plan view showing still another example of the rotation operation means. FIG. 23 is a diagram showing the state after the operation button 88 is pulled forward from the state shown in FIG. 22. In the figure, 1 is a car child safety seat; 2 is a child safety seat for a car;
is the seat, 6 is the safety guard, 9 is the left support rod,
10 is a right support rod, 15 is a left connecting member, 16 is a right connecting member, 17 is a left spring, 18 is a left rear part of the seat, 1
9 is the right rear part of the seat, 20 is a pin, 23 is a restoring spring, 24 is a rotating operation means, 28 is an operation button, 3
1 is a roller, 32 is a long hole, 45 and 46 are arcuate long holes, 49 and 50 are projections, 51 is a brake member, and 6
1 is an engagement recess, 62 is an engagement protrusion, 67 is a spring, 7
0 is a rotation operation means, 71 is an operation button, 73 is a string, 74 is a rotation operation means, 75 is an operation button, 7
7 is a string, 78 is a rotation operation means, 79 is an operation button, 85 is a torsion spring, 87 is a rotation operation means, 8
Reference numeral 8 indicates an operation button, and reference numeral 95 indicates a restoring spring.

Claims (1)

[Claims for Utility Model Registration] (1) A seat for an infant or child to sit on, a safety guard disposed in front of the seat, and upper ends of which are located on the left and right sides of the safety guard, respectively. a left support rod and a right support rod that are rotatably connected, and whose lower ends are rotatably connected to the left and right sides of the bottom of the seat; a left connecting member and a right connecting member that are assembled so as to be able to slide and rotate from side to side, and each of the left connecting member and the right connecting member and the safety guard when they approach each other; a left spring and a right spring biased to slide in the direction, rear end portions of the left connecting member and the right connecting member being capable of engaging with a left rear portion and a right rear portion of the seat, respectively. , and when rotated in a predetermined direction, the engagement is released, and the left connecting member and the right connecting member are rotated in a direction to engage with the left rear and right rear of the seat, respectively. a restoring spring that is coupled to the left connecting member and the right connecting member to rotate the left connecting member and the right connecting member against the force of the restoring spring, thereby causing the left rear portion of the seat to rotate; and a rotation operating means that operates to disengage the right rear part, and further comprising:
Child safety seat for cars. (2) The rotation operation means includes an operation button protruding from the front surface of the safety guard, and when the operation button is moved forward or backward, the left connecting member, the right connecting member, and the left side of the seat A child safety seat for an automobile according to claim 1, which is disengaged from the rear and right rear parts. (3) The child safety seat for an automobile according to claim 2, wherein a rolling element is disposed between the operation button and the safety guard. (4) The child safety seat for an automobile according to claim 3, wherein the rolling elements are rollers. (5) The child safety seat for an automobile according to any one of claims 1 to 4, wherein the rotation operation means includes a link mechanism configured by connecting a plurality of plates. . (6) Utility model registration claims 2 to 4, wherein the rotation operation means includes a string connecting the left connection member, the operation button, and the right connection member.
The child safety seat for automobiles according to any one of the following paragraphs. (7) The child safety seat for an automobile according to any one of claims 1 to 6 of the utility model registration claim, wherein the restoring spring is arranged so as to come into contact with the left connecting member and the right connecting member. . (8) The child safety seat for an automobile according to any one of claims 1 to 7, wherein the restoring spring is arranged so as to directly operate the rotation operation means. (9) A right protrusion and a left protrusion that protrude to the right and left are formed at the rear end portions of the left connecting member and the right connecting member, respectively; The automotive vehicle according to any one of claims 1 to 8, wherein a left receiving recess and a right receiving recess are formed that can engage with the right protrusion and the left protrusion, respectively. Child safety seat. (10) Each of the left connecting member and the right connecting member is formed with a long hole extending back and forth, and the safety guard is provided with a pin positioned in each of the long holes, The left connecting member, the right connecting member, and the safety guard are relatively slidable within a range in which the pin can move within the elongated hole, the utility model registered claims 1 to 9. The child safety seat for an automobile as described in any one of the above. (11) At the connecting portion between the left and right side surfaces of the safety guard and the left support rod and the right support rod, each of the left and right side surfaces of the safety guard has a circular arc centered on a pivot point. An arcuate long hole is formed extending along the left support rod and the right support rod, respectively.
A protrusion is provided that is positioned within each of the arcuate long holes, and each of the left support rod and right support rod is attached to the safety guard to the extent that the protrusion can move within the arcuate elongate hole. A child safety seat for an automobile according to any one of claims 1 to 10, which is rotatable relative to the vehicle. (12) At the connection portion between the left side and right side of the bottom of the seat and the left support rod and right support rod, the left support rod and the right support rod respectively include:
A plurality of engagement recesses are formed along a circle centered on a rotation fulcrum, and the left side and right side of the bottom of the seat each have an engagement protrusion capable of engaging with the engagement recess. , and a brake member that is slidable left and right, the brake member being urged by a spring to slide in the direction of engaging the engagement protrusion with the engagement recess, and the engagement The protrusion and the engagement recess are arranged so that the brake member slides against the force of the spring during the following operation, that is, when a rotational force of a predetermined amount or more is applied to the left support rod and the right support rod. According to any one of claims 1 to 11, the shape of the engaging protrusion is selected so as to achieve the action of disengaging the engaging protrusion from the engaging recess. Child safety seat for cars.