CN114683976A

CN114683976A - Child safety seat

Info

Publication number: CN114683976A
Application number: CN202011624884.XA
Authority: CN
Inventors: 刘祖建
Original assignee: Baoju Switzerland Co ltd
Current assignee: Baoju Switzerland Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-07-01

Abstract

A child safety seat comprising: a seat shell having a side wall; the side impact protection module is assembled with the seat shell and comprises a buffer piece, and the buffer piece has an extension state and a storage state, wherein the buffer piece laterally protrudes out of the side wall in the extension state, and is stored in the side wall in the storage state; an actuating member movably connected with the seat shell and connected with the side impact protection module through a traction member; and the operating belt is connected with the actuating piece and extends out of the seat shell, wherein the operating belt can cause the actuating piece to move relative to the seat shell to cause the side impact protection module to be switched from a storage state to an extension state through the traction piece.

Description

Child safety seat

Technical Field

The present invention relates to a child safety seat.

Background

Child safety seats are commonly used in vehicles to properly restrain a child in the event of an accident such as a collision of the vehicle. In particular, the child safety seat may provide protection by limiting the forward or rearward movement of the child when a front or rear impact occurs to the vehicle. In addition to providing front or rear impact protection, some commercial child safety seats may also be provided with side impact protection structures to help dissipate the impact energy of a side impact. However, conventional side impact protection structures typically require deployment before they provide cushioning, and do not provide cushioning when not properly deployed. However, the child safety seat may be overlooked by the deployment operation of the side impact protection structure after the child safety seat is installed in the car seat by the caregiver, so that the child safety seat may not provide effective side impact protection.

Accordingly, there is a need for an improved child safety seat that provides better protection and at least ameliorates the above disadvantages.

Disclosure of Invention

An object of the present invention is to provide a child safety seat that can provide a side impact protection for a child and can ensure that the side impact protection structure is set in a properly deployed state.

According to one embodiment, a child safety seat comprises: a seat shell having a side wall; the side impact protection module is assembled with the seat shell and comprises a buffer piece and has an extension state and a storage state; an actuating member movably connected with the seat shell and connected with the side impact protection module through a traction member; and the operating belt is in contact with the actuating piece and extends out of the seat shell, wherein the operating belt can drive the actuating piece to drive the traction piece to enable the side impact protection module to be switched from a storage state to an extension state.

Child safety seat, its characterized in that: the operating band protrudes from the front end of the seat shell.

The child safety seat is characterized in that: the child restraint system further comprises a child restraint system, and the operating belt is connected with the shoulder belt of the child restraint system.

Child safety seat, its characterized in that: the actuator is pivotable relative to the seat shell so as to protrude from or retract toward an upper surface of the seat shell.

The child safety seat is characterized in that: a spring is coupled to the actuator to urge the actuator to pivot in a direction projecting above the upper surface of the seat shell.

Child safety seat, its characterized in that: the actuator is pivotally coupled to the seat housing.

Child safety seat, its characterized in that: the actuating piece comprises a plate body and a cross bar which are fixedly connected, the rear end of the plate body is pivoted with the seat shell, and the cross bar is positioned in front of the plate body.

Child safety seat, its characterized in that: the operating band extends to the lower part of the plate body and is in contact with the cross rod.

Child safety seat, its characterized in that: the operating band passes through a locking device at the front end of the seat case, which can clamp the operating band to prevent the operating band from sliding through the locking device, or release the operating band so that the operating band can slide through the locking device.

The child safety seat is characterized in that: the side impact protection module comprises a storage and holding mechanism, the storage and holding mechanism can hold the position of the buffer piece when the buffer piece is stored in the side wall, and the traction piece is connected with the storage and holding mechanism.

Child safety seat, its characterized in that: the storage holding mechanism comprises a bearing piece, a first magnetic piece and a second magnetic piece, wherein the bearing piece is assembled with the seat shell, the first magnetic piece is arranged on the bearing piece, the second magnetic piece is fixedly connected with the buffering piece, the bearing piece can move relative to the seat shell so as to move the first magnetic piece between a holding position and a releasing position, when the buffering piece is stored in the side wall and the first magnetic piece is in the holding position, the first magnetic piece and the second magnetic piece are close to each other, so that the magnetic attraction between the first magnetic piece and the second magnetic piece can hold the position of the buffering piece, and when the first magnetic piece is moved to the releasing position, the first magnetic piece is far away from the second magnetic piece, so that the magnetic action between the first magnetic piece and the second magnetic piece is reduced or prevented, the buffer member is moved and laterally protruded from the side wall.

Child safety seat, its characterized in that: the operating band causes the actuating member to pivot relative to the seat shell to be forced through/by the traction member, thereby causing the carrier to move from the retaining position to the releasing position.

Child safety seat, its characterized in that: the traction piece is a cable.

Child safety seat, its characterized in that: the actuator is disposed in a seat portion of the seat shell.

Child safety seat, its characterized in that: the buffer piece laterally protrudes from the side wall in the extended state and is stored in the side wall in the storage state.

Drawings

Fig. 1 is a perspective view of a child safety seat according to an embodiment of the present invention.

Fig. 2 shows a perspective view of a part of the structure in the child safety seat.

Fig. 3 shows a partial cross-sectional view of a portion of the structure in the child safety seat.

Fig. 4 is a perspective view illustrating a side impact protection module provided in the child safety seat.

Fig. 5 and 6 are exploded views of the side impact protection module from different perspectives.

Fig. 7 and 8 are schematic views illustrating the operation of the side impact protection module.

Detailed Description

Fig. 1 is a perspective view of a child safety seat 100 according to an embodiment of the present invention, and fig. 2 is a perspective view of a part of the child safety seat 100. Referring to fig. 1 and 2, the child safety seat 100 may include a support base 102 and a child seat 104 disposed on the support base 102. The support base 102 is adapted to be mounted on a vehicle seat to provide stable support of the child safety seat 100. According to one embodiment, the support base 102 may be provided with a locking device 106, and when the support base 102 is installed on a vehicle seat, the locking device 106 may be positioned adjacent a seat back of the vehicle seat and releasably engage an anchoring structure (e.g., an ISOFIX anchor) within the vehicle to lock the support base 102 to the vehicle seat.

The child seat 104 may include a seat shell 108, a headrest 110, and two side impact protection modules/modules 112 (only one of the two side impact protection modules 112 is shown in fig. 1). The seat shell 108 may be disposed on the support base 102 and includes a seat portion 114, a backrest portion 116, and two sidewalls 118. According to one embodiment, the seat shell 108, including the seat portion 114, the backrest portion 116, and the two side walls 118, may be a rigid material, including, but not limited to, a rigid plastic material. The seat shell 108 defines a child seating space between the seat portion 114, the backrest portion 116, and the two side walls 118. Headrest 110 is slidably connected to seat housing 108 such that headrest 110 can slide up and down along backrest portion 116 of seat housing 108. The front surface of the backrest portion 116 is adapted to support the back of a child. The two side walls 118 are respectively disposed at the left and right sides of the seat shell 108 and protrude forward, and extend from the top end of the backrest portion 116 to the seat portion 114. Thus, the two side walls 118 may limit the lateral movement of the child when the child is seated in the seat shell 108.

Referring to fig. 1, two side impact protection modules 112 are assembled to the seat shell 108 on two side walls 118. The two side impact protection modules 112 have the same structure and include bumpers 120 connected to the side walls 118 of the seat shell 108. For example, the bumper 120 may be pivotally connected to the sidewall 118 such that the bumper 120 may be pivoted to protrude laterally from the sidewall 118 or to be stored toward the inside of the sidewall 118. Thus, the side impact protection module 112 can be switched between an extended state and a stowed state: the bumper 120 projects laterally outward of the sidewall 118 in the extended state and is stored in the sidewall 118 in the stored state. When the vehicle is subjected to a lateral impact, the bumper 120, which laterally protrudes from the sidewall 118, may hit a side panel (e.g., a door) inside the vehicle and be deformed, thereby performing a buffering function. For example, the bumper 120 may force the side walls 118 to partially bend inward of the seat shell 108 in the event of a side impact, which may provide protection for a child.

Referring to fig. 1 and 2, to facilitate switching of the side impact protection module 112 from the stowed position to the extended position, the child safety seat 100 may include an actuating member 122, a spring 124, two traction members 126, and an operating strap 128.

Referring to fig. 1-2, fig. 3 shows a cross-sectional view of the actuator 122 and the spring 124 assembled in the seat shell 108. Referring to fig. 1 to 3, the actuator 122 is movably connected to the seat shell 108 and is respectively connected to the two side impact protection modules 112 through two pulling members 126, such that the actuator 122 can move relative to the seat shell 108 and further move the side impact protection modules 112 from the storage state to the extension state through the pulling members 126. According to one embodiment, the actuator 122 may be disposed in the seat portion 114 of the seat shell 108, such as adjacent a hip region of the seat portion 114. The actuator 122 is pivotally coupled to the seat shell 108, for example, such that the actuator 122 can pivot relative to the seat shell 108 about the pivot axis P to protrude from the upper surface 108A of the seat shell 108 or retract toward the upper surface 108A. According to one embodiment, the actuator 122 may include a plate 130 and a cross bar 132, which are fixedly connected, wherein the rear end 130R of the plate 130 is pivotally connected to the seat shell 108 along the pivot axis P, and the cross bar 132 is located in front of the plate 130. The front end 130F of the plate 130 can protrude from the upper surface 108A of the seat shell 108 when the actuator 122 is in the protruding position, and a child seated on the upper surface 108A of the seat shell 108 can contact and push the front end 130F of the plate 130 to move downward, so that the actuator 122 retracts toward the upper surface 108A.

Referring to fig. 1-3, a spring 124 may be coupled to the actuator 122 to urge the actuator 122 toward a direction projecting from the upper surface 108A of the seat shell 108. According to one embodiment, the spring 124 is, for example, a torsion spring, disposed about a fixed axis within the seat housing 108, and one end of the spring 124 is coupled to the crossbar 132 of the actuator 122. When a child is not seated on the upper surface 108A of the seat shell 108, the spring action of the spring 124 causes the actuator 122 to protrude from the upper surface 108A of the seat shell 108 such that the front end 130F of the plate 130 protrudes from the upper surface 108A of the seat shell 108.

Each traction member 126 is coupled to its corresponding side impact protection module 112 and actuator 122, respectively. According to one embodiment, the pulling member 126 can be a cable, and the opposite ends of the cable are connected to the side impact protection module 112 and the actuator 122, respectively, wherein one end 126A of the pulling member 126 is connected to the plate 130 of the actuator 122, for example. The actuator 122 retracts toward the upper surface 108A of the seat shell 108, which pulls the two pulling members 126, thereby causing the side impact protection module 112 to switch from the stowed position to the extended position.

The operating strap 128 may contact the actuator 122 on the inside of the seat housing 108 and extend out of the seat housing 108 to provide caregiver operation. Thus, when the caregiver pulls the operating band 128, the actuating member 122 is driven to move relative to the seat shell 108, such that the actuating member 122 retracts toward the upper surface 108A of the seat shell 108 to drive the pulling member 126 to switch the side impact protection module 112 from the storage state to the extended state. According to one embodiment, the operating strap 128 can extend below a plate 130 of the actuator 122, contact a cross bar 132 of the actuator 122, and extend out of the front end of the seat shell 108. According to one embodiment, a locking device 134 may be provided at the front end of the seat shell 108, and the operating strap 128 may pass through the locking device 134, which may grip the operating strap 128 to prevent the operating strap 128 from sliding through the locking device 134, or release the operating strap 128 so that the operating strap 128 can slide through the locking device 134. When the caregiver pulls the operating strap 128, the actuator 122 is pivoted downward by the contact between the operating strap 128 and the cross bar 132, thereby pulling the pulling member 126 and causing the side impact protection module 112 to switch from the storage state to the extended state, which is convenient for the caregiver to operate.

According to one embodiment, the harness 128 may be part of a child restraint system 180 provided in the child safety seat 100, such as the child restraint system 180 of the child safety seat 100 including two shoulder straps 182 and a crotch strap 184, and the harness 128 may be connected to the two shoulder straps 182 of the child restraint system 180 to allow a caregiver to secure a child in the child safety seat 100 by pulling the harness 128 to tighten the shoulder straps 182 of the child restraint system 180. Therefore, even if the child does not push the actuator 122 downward while sitting in the child safety seat 100, the caregiver pulls the operating strap 128 to tighten the shoulder strap 182 of the child restraint system 180 to simultaneously urge the side impact protection module 112 from the stowed state to the extended state, thereby ensuring the cushioning effect of the side impact protection module 112 in the child safety seat 100.

With the above-mentioned structure, a larger child can contact and directly push the actuator 122 when sitting on the child safety seat 100, so as to switch the side impact protection module 112 from the storage state to the extension state. The smaller child may not have the actuator 122 actuated or actuated incompletely to switch the state of the side impact protection module 112 when seated in the child safety seat 100 because the smaller child is lighter and the smaller seat cushion used with the smaller child is thicker. At this time, the caregiver can tighten the shoulder straps 182 of the child restraint system 180 by pulling the operating strap 128 and simultaneously urge the side impact protection module 112 to switch from the storage state to the extended state.

Fig. 4 to 8 are schematic diagrams showing a detailed structure of the side impact protection module 112 in conjunction with fig. 1 to 3. Referring to fig. 4-8, the side impact protection module 112 may include a bumper 120, an extension locking mechanism 136, and a storage retaining mechanism 138, wherein the storage retaining mechanism 138 is connected to the towing member 126.

According to one embodiment, the seat shell 108 may be fixedly connected to a pivot base 140 in the sidewall 118, and the cushion 120 may be pivotally connected to the pivot base 140. The cushion 120 may include two fixed

housing portions

120A, 120B defining an inner space for assembling the stretching locking mechanism 136, and the

housing portions

120A, 120B are respectively provided with a coupling portion 142 pivotally connected to the pivot base 140.

Referring to fig. 4 to 6, the extension locking mechanism 136 can lock the cushion 120 laterally protruding from the sidewall 118 and the seat shell 108, thereby locking the side impact protection module 112 in an extended state. According to one embodiment, the extension locking mechanism 136 may include a latch 144, one or more springs 146, and a release 148. The latch 144 is slidably connected to the cushion 120, such that the latch 144 slides relative to the cushion 120 to engage with or disengage from the notch 140A of the pivot base 140, wherein when the latch 144 engages with the notch 140A of the pivot base 140, the side impact protection module 112 is locked in the extended state, and when the latch 144 disengages from the notch 140A of the pivot base 140, the cushion 120 is allowed to pivot relative to the seat shell 108, such that the side impact protection module 112 can be switched from the extended state to the stowed state.

The two ends of the spring 146 are respectively connected to the cushion 120 and the latch 144, and the latch 144 is moved to a position where it is engaged with the notch 140A of the pivot base 140.

The release element 148 is operated to drive the latch element 144 to move, so that the latch element 144 is disengaged from the notch 140A of the pivot base 140. According to one embodiment, the release element 148 may be fixedly connected to the latch element 144 and exposed from the buffer element 120 for providing caregivers with convenience.

Referring to fig. 4 to 7, the storage and holding mechanism 138 is disposed in the seat shell 108 and can hold the position of the buffer 120 when the buffer 120 is stored in the sidewall 118, so as to ensure that the side impact protection module 112 can maintain the storage state. The pulling member 126 is connected to the actuator 122 and the storage keeping mechanism 138, respectively, such that the retracting movement of the actuator 122 toward the upper surface 108A of the seat shell 108 causes the storage keeping mechanism 138 to release the buffer member 120, so that the side impact protection module 112 can be switched from the storage state to the extension state. According to one embodiment, the storage holding mechanism 138 may include two

magnetic members

150, 152, a carrier 154, and a spring 156. The carrier 154 is assembled with the seat shell 108, the magnetic element 150 can be disposed on the carrier 154, and the magnetic element 152 can be fixed to the bumper 120. According to one embodiment, the seat shell 108 may be fixedly coupled to a mounting base 158 having a recess 158A, and the carrier 154 is movably coupled to the mounting base 158 of the seat shell 108 on the opposite side of the bottom of the recess 158A, such that the carrier 154 is movable relative to the seat shell 108 and the mounting base 158 to move the magnetic member 150 between the retaining position (shown in FIG. 7) and the releasing position (shown in FIG. 8). For example, the carrier 154 may be pivotally connected to a shaft portion 158B provided on the mounting base 158, such that the carrier 154 can pivot between a retaining position and a releasing position. When the side impact protection module 112 is in the storage state and the extended state, the buffer 120 and the magnetic element 152 can move synchronously relative to the seat shell 108, the magnetic element 150 and the carrier 154. The

magnetic members

150, 152 may include magnets, electromagnets, ferromagnetic members, and the like, so as to be capable of interacting with each other via magnetic attraction.

When the buffer member 120 is stored in the sidewall 118 and the magnetic member 150 is in the holding position, the buffer member 120 can be accommodated in the recess 158A of the mounting seat 158, and the

magnetic members

150 and 152 are in adjacent positions, so that the magnetic attraction between the

magnetic members

150 and 152 can maintain the position of the buffer member 120, thereby maintaining the side impact protection module 112 in the storage state. The magnetic element 150 is moved away from the magnetic element 152 to the release position, thereby reducing or preventing the magnetic force between the

magnetic elements

150 and 152, such that the damper 120 is no longer constrained to move and protrudes laterally beyond the sidewall 118 of the seat shell 108. According to an embodiment, the damper 120 may be connected to a spring 160, and after the magnetic element 150 moves to the release position, the elastic action of the spring 160 may cause the damper 120 to move and protrude laterally from the sidewall 118 of the seat shell 108.

The spring 156 is connected to the mounting seat 158 and the carrier 154, respectively, and can urge the carrier 154 to move to the holding position, so that the magnetic element 150 on the carrier 154 can generate a magnetic attraction with the magnetic element 152 on the buffer 120 after the buffer 120 is stored in the sidewall 118, thereby maintaining the side impact protection module 112 in the storage state.

Referring to fig. 1-8, one end 126A of the pulling member 126 is connected to the actuating member 122, and the other end 126B of the pulling member 126 is connected to the carrier member 154. According to one embodiment, the other end 126B of the pulling member 126 can be connected to the carrier 154 via an actuating member 162, wherein the actuating member 162 is disposed adjacent to the carrier 154. The actuator 162 is slidably coupled to the seat shell 108 and contacts the carrier 154. For example, the driving member 162 may have a guiding slot 164, and the mounting seat 158 of the seat shell 108 is provided with a rib 166 slidably connected with the guiding slot 164. Thus, the driving member 162 can slide in the direction S relative to the seat shell 108, so as to pivot the supporting member 154 to drive the magnetic member 150, and move the magnetic member 150 from the holding position to the releasing position. In addition, the driving member 162 may be connected to a spring 168, and the elastic action of the spring 168 may urge the driving member 162 to slide in the direction opposite to the direction S.

With the above structure, when the actuator 122 pivots downward (i.e., retracts toward the upper surface 108A of the seat shell 108), the pulling member 126 applies a force to slide the driving member 162 in the direction S to pivot the carrier 154 from the holding position to the releasing position. When the actuator 122 is released and the pulling member 126 is not pulled, the spring 168 can urge the driving member 162 to slide in the direction S to the initial position, and the spring 156 can urge the carrier 154 to pivot from the release position to the retaining position.

According to one embodiment, the carrier 154 may be provided with a flange 170 at one end, the actuator 162 may be provided with a resilient arm 172, and the carrier 154 and the actuator 162 may interact via contact between the flange 170 and an end 172A of the resilient arm 172. For example, when the driving member 162 is pulled by the pulling member 126 to slide in the direction S, the end 172A of the resilient arm 172 may contact and urge the carrier 154 to pivot from the retaining position to the releasing position. In addition, the elastic arm 172 can be elastically deformed, so that the carrier 154 can be moved to the holding position.

It should be noted that the above embodiment is provided with a driving member 162 to facilitate the movement of the supporting member 154. However, the driving of the carrier 154 may be realized by other structures, and is not limited to the above-described embodiment. For example, another embodiment may omit the driving member 162 and the spring 168 and connect the other end 126B of the pulling member 126 directly to the carrier 154, such that when the actuating member 122 pivots downward, it applies a force via the pulling member 126 and directly causes the carrier 154 to pivot from the retaining position to the releasing position.

The child safety seat is provided with the side impact protection module, so that a better protection effect can be provided for a child when the child is impacted laterally, and the child safety seat is safer to use. In addition, the child safety seat is provided with the operating belt, so that when a caregiver pulls the operating belt, the shoulder belt of the child restraint system can be tightened, and the side impact protection module is switched from the storage state to the extension state, so that the side impact protection module in the child safety seat can play a role in buffering.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims

1. A child safety seat, comprising:

a seat shell having a side wall;

the side impact protection module is assembled with the seat shell and comprises a buffer piece and has an extension state and a storage state;

an actuating member movably connected with the seat shell and connected with the side impact protection module through a traction member; and

and the operating belt is in contact with the actuating piece and extends out of the seat shell, wherein the operating belt can drive the actuating piece to drive the traction piece to enable the side impact protection module to be switched from the storage state to the extension state.

2. The child safety seat according to claim 1, wherein: the operating strap extends out of the front end of the seat shell.

3. The child safety seat according to claim 1, wherein: the child restraint system further comprises a child restraint system, and the operating belt is connected with the shoulder belt of the child restraint system.

4. The child safety seat according to claim 1, wherein: the actuator is pivotable relative to the seat shell so as to protrude from or retract toward an upper surface of the seat shell.

5. The child safety seat according to claim 4, wherein: a spring is coupled to the actuator to urge the actuator to pivot in a direction projecting above the upper surface of the seat shell.

6. The child safety seat according to claim 1, wherein: the actuator is pivotally coupled to the seat housing.

7. The child safety seat according to claim 1, wherein: the actuating piece comprises a plate body and a cross bar which are fixedly connected, the rear end of the plate body is pivoted with the seat shell, and the cross bar is positioned in front of the plate body.

8. The child safety seat according to claim 7, wherein: the operating band extends to the lower part of the plate body and is in contact with the cross rod.

9. The child safety seat according to claim 1, wherein: the operating band passes through a locking device at the front end of the seat case, which can clamp the operating band to prevent the operating band from sliding through the locking device, or release the operating band so that the operating band can slide through the locking device.

10. The child safety seat according to claim 1, wherein: the side impact protection module comprises a storage and holding mechanism, the storage and holding mechanism can hold the position of the buffer piece when the buffer piece is stored in the side wall, and the traction piece is connected with the storage and holding mechanism.

11. The child safety seat according to claim 10, wherein: the storage holding mechanism comprises a bearing piece, a first magnetic piece and a second magnetic piece, wherein the bearing piece is assembled with the seat shell, the first magnetic piece is arranged on the bearing piece, the second magnetic piece is fixedly connected with the buffering piece, the bearing piece can move relative to the seat shell so as to move the first magnetic piece between a holding position and a releasing position, when the buffering piece is stored in the side wall and the first magnetic piece is in the holding position, the first magnetic piece and the second magnetic piece are close to each other, so that the magnetic attraction between the first magnetic piece and the second magnetic piece can hold the position of the buffering piece, and when the first magnetic piece is moved to the releasing position, the first magnetic piece is far away from the second magnetic piece, so that the magnetic action between the first magnetic piece and the second magnetic piece is reduced or prevented, the buffer is moved and laterally protrudes from the side wall.

12. The child safety seat according to claim 11, wherein: the operating band causes the actuator to pivot relative to the seat shell to apply a force through the traction member, thereby causing the carrier to move from the retaining position to the releasing position.

13. The child safety seat according to claim 1, wherein: the traction piece is a cable.

14. The child safety seat according to claim 1, wherein: the actuator is disposed in a seat portion of the seat shell.

15. A child safety seat according to any of claims 1 to 14, wherein: the buffer piece laterally protrudes from the side wall in the extended state and is stored in the side wall in the storage state.