Tether assembly, child seat and its support structure

Abstract

To provide a child seat capable of improving safety and riding comfort.SOLUTION: There are provided a child seat 1, a tether assembly and a support structure, wherein the child seat 1 is mounted on a vehicle seat and includes a base, a seat 20, a top lever, tether assemblies and an alarm device, the base has an anchor part connected to the vehicle seat, the seat 20 is connected to the base, the top lever is fixed to the rear part of the base, and includes top tethers 410 where the tether assemblies are connected to each other and a tether fixing part, the top tether 410 is connected to the top lever, the tether fixing part is connected to the vehicle seat, the alarm device includes a switch 520, when the top tether 410 is pulled, the switch 520 can be triggered.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a tether assembly, a child seat and its support structure.

Background Art

[0002] A child seat is a seat dedicated for children. To enable a child to sit on the child seat, the child seat is assembled in a vehicle so that the child is restrained by the child seat to protect the safety of the child.

[0003] Existing child seats usually include a base and a seat provided on the base. The ISOFIX interface is directly provided on one side of the base, and the Top Tether is directly fixed to the back of the seat. The Top Tether and the ISOFIX interface of the child seat are respectively connected to the corresponding installation locations in the vehicle so that the child seat can be fixed. When installing the child seat in the forward direction on the vehicle seat, the seat is attached to the base in the forward direction, and the Top Tether and the ISOFIX interface are located on the same side close to the vehicle seat. Since the position where the Top Tether of the seat is provided does not contact the vehicle seat and there is a distance, the distance between the Top Tether and the attachment location on the upper part of the corresponding vehicle seat is far, and it is necessary to lengthen the length of the Top Tether, resulting in a high material usage cost. When installing the child seat in the reverse direction on the vehicle seat, the seat is attached to the base in the reverse direction, and the attachment direction of the base is the same as when installing the child seat in the forward direction. Since the Top Tether is installed on the back of the seat, the Top Tether is located on the side away from the vehicle seat, while the base is located on the side close to the vehicle seat. When attaching the Top Tether to the attachment location on the upper part of the vehicle seat, it is necessary to move the Top Tether from the back of the seat to the front of the seat in order to attach it to the attachment location on the upper part of the vehicle seat. However, the movement path of the Top Tether interferes with the passengers of the child seat, affecting the riding comfort and comfort of the passengers of the child seat, making the passengers of the child seat cry and fuss. Similarly, the distance between the Top Tether and the attachment location on the upper part of the corresponding vehicle seat is far, and it is necessary to lengthen the length of the Top Tether to attach it to the vehicle seat.

[0004] The ISOFIX interface is fixed on both sides of the base, and the Top Tether interface is fixed on the upper part of the child seat. Since the child seat can be firmly fixed to the vehicle seat with a three-point fixation, it will not reverse even when subjected to an impact.

[0005] Since a child seat needs to fix a lot of interfaces and the fixing operation is complex, the interfaces may not be fixed in position during the use of the child seat. This may not be easily noticed by the installer of the child seat, and the protection function of the child seat may be lost. Therefore, there is a need for a child seat that can indicate whether all the interfaces are fixed in position.

[0006] When the child seat is installed in the forward direction on the vehicle seat, the seat is attached to the base in the forward direction. The Top Tether and the ISOFIX interface are located on the same side close to the vehicle seat. Since the position where the Top Tether of the seat is provided does not contact the vehicle seat and there is a distance, the distance between the Top Tether and the attachment location on the upper part of the corresponding vehicle seat is far, and it is necessary to lengthen the length of the Top Tether, resulting in a high material usage cost. When the child seat is installed in the reverse direction on the vehicle seat, the seat is attached to the base in the reverse direction, and the attachment direction of the base is the same as when the child seat is installed in the forward direction. Since the Top Tether is installed on the back of the seat, the Top Tether is located on the side away from the vehicle seat, while the base is located on the side close to the vehicle seat. When attaching the Top Tether to the attachment location on the upper part of the vehicle seat, it is necessary to move the Top Tether from the back of the seat to the front of the seat in order to attach it to the attachment location on the upper part of the vehicle seat. However, the movement path of the top tether interferes with the passengers of the child seat, affecting the riding comfort and comfort of the passengers of the child seat. Therefore, there is a need for a child seat that can easily connect the Top Tether without disturbing the children riding in it.

[0007] After the Top Tether is fixed in position, it is necessary to pull it so that it is firmly connected to other parts of the child seat. However, since the conventional method of adjusting the length of the top tether can only be adjusted from one direction, it may be difficult to apply sufficient tension due to space constraints in different types of vehicles. Therefore, there is a need for a tether assembly that can conveniently apply tension to the top tether in various ways, and a child seat having such a tether assembly.

[0008] When an impact is applied to the child seat, a large separation impact force is applied between the base and the seat. Therefore, a child seat that can fully exhibit the adhesive force between the base and the seat is required.

Summary of the Invention

Problems to be Solved by the Invention

[0009] An object of the present invention is to provide a tether assembly, a child seat, and a support structure thereof that can reduce or eliminate at least one of the above-mentioned drawbacks.

[0010] One object of the present invention is to provide a support structure for a child seat that can shorten the service life of the top tether and prevent the attachment path of the top tether from interfering with passengers.

[0011] Another object of the present invention is to provide a child seat that can shorten the use length of the top tether and prevent the attachment path of the top tether from interfering with passengers by providing a support structure for the child seat on the child seat.

Means for Solving the Problems

[0012] To achieve the above object, in one aspect, the present invention provides a child seat attached to a vehicle seat, including a base having an anchor portion connected to the lower part of the vehicle seat, a seat connected to the base, a top lever fixed to the rear portion of the base, a tether assembly including a top tether and a tether fixing portion connected to each other, the top tether being connected to the top lever, the tether fixing portion being connected to the vehicle seat, and an alarm device including a switch, the alarm device being configured to trigger the switch when the top tether is pulled.

[0013] In one embodiment, the alarm device is configured to give an alarm when the top tether is pulled and the anchor portion is not fixed at a predetermined position, or when the top tether is not pulled and the anchor portion is fixed at a predetermined position, and not to give an alarm when the top tether is pulled and the anchor portion is fixed at a predetermined position, or when the top tether is not pulled and the anchor portion is not fixed at a predetermined position.

[0014] In one embodiment, the child seat has a safe operating state, a non-operating state, and a malfunction state. In the safe operating state, the top tether is pulled and the anchor portion is fixed in position. In the non-operating state, the top tether is not pulled and the anchor portion is not fixed in position. The malfunction state is a situation other than the non-operating state and the operating state. The alarm device is configured to give an alarm when the child seat is in the malfunction state, and not to give an alarm when the child seat is in the safe operating state or the non-operating state.

[0015] In one embodiment, the alarm device includes a main body, a plurality of switches, and an alarm. The plurality of switches are electrically connected to the main body and can provide signals to the main body. The main body determines whether to give an alarm based on the signals, and the alarm executes the alarm when the main body determines to give an alarm.

[0016] In one embodiment, the main body is provided on the base, and the alarm executes the alarm by at least one of sound and light.

[0017] In one embodiment, the tether fixing part is a hook. The tether assembly is a Top Tether type connector, and the anchor part is an ISOFIX type connector. The seat is rotatable relative to the base at an angle within a certain range about an axis. The axis is substantially perpendicular to the upper surface of the base. The base is provided on a vehicle seat and has a bottom surface and an upper surface inclined with respect to the bottom surface. The seat is configured for a child to ride on. The switch can provide a signal to the main body as to whether the top tether is being pulled or the anchor part is fixed at a predetermined position.

[0018] In one embodiment, the child seat further includes driving components, the driving components including at least one trigger part and at least one connecting part connected to the top tether, the connecting part being connected to the trigger part, and the trigger part triggering at least one switch.

[0019] In one embodiment, the child seat further includes driving components, the driving components including a plurality of trigger parts and one or more connecting parts connected to the top tether, wherein one or more of the connecting parts are connected to one trigger part, and the plurality of trigger parts respectively trigger the plurality of switches so that the plurality of switches provide signals to the main body.

[0020] In one embodiment, the connecting part is provided inside the top lever and is restricted to move within a certain distance range, and the plurality of trigger parts are respectively provided on the base.

[0021] In one embodiment, an opening is provided at the upper part of the top lever, the top tether passes through the opening and a part of it is provided inside the top lever. The top lever includes two vertical queues, the two vertical queues (310) stand upright symmetrically on the rear part of the base, a rail is connected to the upper parts of the two vertical queues, the opening is provided at the upper part of each of the two vertical queues, two top tethers pass through the openings of the two vertical queues respectively and a part of them is provided inside the top lever. The driving component includes two connection parts, and the two top tethers are respectively connected to the two connection parts.

[0022] In one embodiment, the connection part is connected to the trigger part via a steel wire, each trigger part is restricted to move within a certain distance range and includes an elastic recovery component. The elastic recovery component is configured to apply a force such that each trigger part does not trigger the corresponding switch. The plurality of trigger parts respond to the pulling of the top tether or the fixing of the anchor part at a predetermined position. Each trigger part triggers the corresponding switch by physical contact with the corresponding switch.

[0023] In one embodiment, the anchor portion includes two anchor arms, and the warning device gives an alarm when any one of the two top tethers is pulled and any one of the anchor arms is not fixed at a predetermined position or the other top tether of the two top tethers is not pulled. Further, when both of the two top tethers are pulled and both of the two anchor arms are fixed at a predetermined position, no alarm is given. Or, when any one of the two anchor arms is fixed at a predetermined position and any one of the two top tethers is not pulled or the other anchor arm of the two anchor arms is not fixed at a predetermined position, an alarm is given. Further, when both of the two top tethers are pulled and both of the two anchor arms are fixed at a predetermined position, no alarm is given. Or, when neither of the two top tethers is pulled and neither of the two anchor arms is fixed at a predetermined position, no alarm is given.

[0024] In one embodiment, the top lever includes two vertical queues and one rail. The two vertical queues (310) are erected symmetrically on the rear part of the base, the rail is connected to the top ends of the two vertical queues, the opening is provided at the center of the upper surface of the rail, and a receiving portion is provided at the center of the lower surface of the rail. One of the plurality of switches is provided in the receiving portion. One end of the top tether is fixed to the receiving portion. When the top tether is pulled, pressure is applied to the one switch to trigger the one switch, whereby the one switch provides a signal to the main body portion.

[0025] In one embodiment, the child seat further includes two trigger portions, the anchor portion includes two anchor arms, and the two trigger portions trigger associated switches in response to the two anchor arms being fixed at a predetermined position.

[0026] In one embodiment, the child seat further includes a plurality of trigger portions, each of the plurality of trigger portions triggers a corresponding switch, and the corresponding switch provides a signal to the main body portion. One end of the top tether is connected to one of the plurality of trigger portions. The top lever includes a vertical queue and a receiving portion. The vertical queue (310) stands upright at the center of the rear portion of the base. The receiving portion is provided horizontally at the top end of the vertical queue. The opening is provided at the center of the upper surface of the receiving portion. The one end of the top tether is located in the receiving portion.

[0027] In one embodiment, the one trigger portion is provided on the base and is restricted to move within a certain distance range. When the top tether is pulled, the one trigger portion triggers the corresponding switch by physical contact, whereby the corresponding switch provides a signal to the main body portion.

[0028] In one embodiment, the horizontal length of the receiving portion is greater than the horizontal length of the vertical queue. A stopper is provided at the one end of the top tether, and the stopper cannot pass through the opening. The internal space of the receiving portion is configured to allow the one end of the top tether to move a certain distance in the vertical direction. The one trigger portion is formed on the seat body, connected to the one end of the top tether via a steel wire, and has a longitudinally shaped through hole.

[0029] In one embodiment, the anchor portion includes two anchor arms. The warning device gives an alarm when the top tether is pulled and any one of the two anchor arms is not fixed at a predetermined position, and does not give an alarm when the top tether is pulled and both of the two anchor arms are fixed at a predetermined position, or gives an alarm when the top tether is not pulled and any one of the two anchor arms is fixed at a predetermined position, and does not give an alarm when the top tether is pulled and both of the two anchor arms are fixed at a predetermined position.

[0030] In one embodiment, the tether assembly includes two adjusters, and any one of the two adjusters can also adjust the length of the tether assembly.

[0031] In one embodiment, the two adjusters are provided in opposite directions, the top tether includes two adjustment bands and a connection band, the connection band is connected between the two adjusters, and the two adjustment bands pass through the two adjusters to form two free ends directed in opposite directions, whereby the length of the tether assembly can be adjusted along two opposite directions by pulling the two free ends.

[0032] In one embodiment, the tether fixing part is fixed to the end of one of the two adjustment bands.

[0033] In one embodiment, the tether fixing part is slidably connected to one of the two adjustment bands.

[0034] In one embodiment, the tether assembly further includes a bidirectional adjuster, and the bidirectional adjuster can adjust the length of the tether assembly along two opposite directions.

[0035] In one embodiment, the base and the seat include corresponding ring portions, the base and the seat are connected via the ring portions so that the seat can rotate relative to the base, and reinforcing components connected to each other are respectively provided on the ring portions of the base and the seat to strengthen the connection force between the seat and the base.

[0036] In one embodiment, four of the reinforcing components are respectively provided on the ring portion of the base and the ring portion of the seat. The four reinforcing components of the base are circumferentially and uniformly provided on the circumference of the ring portion of the base. The four reinforcing components of the seat are provided at positions corresponding to the four reinforcing components of the base. The base and the seat respectively have one reinforcing component, which are provided on one side of each ring portion close to the top lever, and the length extending along the circumference of each ring portion is greater than that of the other three reinforcing components.

[0037] According to another aspect of the present invention, there is provided a child seat including a base, a seat, a top lever, a tether assembly, and an alarm device. The base is provided with an anchor portion that projects rearward. The seat is connected to the base. The top lever includes a lever component and a housing portion. The lever component is provided at the rear of the base. The housing portion is externally fitted to the upper part of the lever component. The tether assembly includes a top tether and a tether fixing portion. The top tether is externally fitted to the upper part of the lever component. The alarm device can give an alarm based on whether the top tether is pulled and whether the anchor portion is fixed at a predetermined position. The alarm device includes a main body portion, a plurality of switches, and an alarm. The main body portion determines whether to give an alarm. The plurality of switches are electrically connected to the main body portion and provide signals to the main body portion. The alarm executes the alarm when the main body portion determines to give an alarm.

[0038] In one embodiment, the top tether is externally fitted to the upper part of the lever component, and the housing portion limits the movement range of the top tether on the lever component. Here, one end of the top tether is provided in the internal space of the housing portion and is provided with a trigger portion. One of the plurality of switches is provided in the internal space of the housing portion. When the top tether is pulled, the trigger portion triggers the one switch, and the one switch provides a signal to the main body portion.

[0039] In one embodiment, a through hole is formed in the upper part of the lever component. Here, one end of the top tether passes through the through hole and is provided in the internal space of the accommodating portion and a trigger portion is provided. One of the plurality of switches is provided in the internal space of the accommodating portion. When the top tether is pulled, the trigger portion triggers the one switch, and the one switch provides a signal to the main body portion.

[0040] In one embodiment, a flexible component is provided in the accommodating portion, and the flexible component is provided inside the through hole to avoid direct contact between the top tether and the inside of the through hole.

[0041] In one embodiment, an elastic component is provided in the accommodating portion. The elastic component is provided between the accommodating portion and the trigger portion, and applies a force to the trigger portion such that the trigger portion does not trigger the one switch.

[0042] According to another aspect of the present invention, there is provided a child seat including an alarm device for providing an alarm mechanism for safe attachment of the child seat. The alarm device includes a plurality of switches, a main body portion, and an alarm. The plurality of switches can be opened and closed. The main body portion determines whether to give an alarm based on the opening and closing of the plurality of switches. The alarm executes the alarm when the main body portion determines to give an alarm.

[0043] In one embodiment, the child seat further includes a base, a top lever, and a tether assembly. The base is provided with an anchor portion that projects rearward. The anchor portion includes two anchor arms. The top lever is fixed to the rear portion of the base. The tether assembly is partially provided inside the top lever. The plurality of switches include two switches that are closed when the two anchor arms are fixed in a predetermined position, and a switch that is closed by pulling of the tether assembly.

[0044] In one embodiment, the child seat further includes a base, a top lever, and a tether assembly. The base is provided with an anchor portion that projects rearward, the anchor portion includes two anchor arms, the top lever is fixed to the rear portion of the base, the tether assembly includes two top tethers, a part of each of the two top tethers is provided inside the top lever, and the plurality of switches includes two switches that are closed when the two anchor arms are fixed in a predetermined position, and two switches that are closed by pulling the two top tethers.

[0045] In one embodiment, if at least one of the plurality of switches is closed but not all of the plurality of switches are closed, it is determined that the main body part gives an alarm, and if all of the plurality of switches are opened and closed, it is determined that the main body part does not give an alarm.

[0046] In one embodiment, the alarm device includes at least one of an optical alarm device and an acoustic alarm device. The optical alarm device can present the opening and closing of each of the plurality of switches, and the acoustic alarm device makes a sound when it is determined that the main body part gives an alarm.

[0047] In one embodiment, the optical alarm device emits light with a plurality of LEDs to perform the presentation, and the optical alarm device is provided on the upper surface of the front portion of the base.

[0048] According to another aspect of the present invention, there is provided a child seat including a base, a seat, a top lever, a tether assembly, an alarm device, and three trigger parts. The base is provided with two anchor arms that project rearward. The seat is connected to the base. The top lever includes a lever component provided at the rear of the base. The tether assembly includes a top tether. One end of the top tether is fixed to the rear side above the lever component and extends away from the top through the lower, front, and upper sides of the lever component. The alarm device has three switches and three trigger parts. When any one of the three switches is not triggered, the alarm device gives an alarm. The three trigger parts trigger the three switches respectively. One of the three trigger parts projects downward from below the upper part of the lever component and contacts the top tether. When the top tether is pulled, the top tether pushes the one trigger part to trigger one of the three switches. Further, when the two anchor arms are fixed at a predetermined position, the other two trigger parts trigger the other two switches.

[0049] In one embodiment, the top lever further includes a cover plate, the cover plate is externally enclosed on the upper part of the lever component, and the top tether has an opening through which it extends and protrudes.

[0050] According to another aspect of the present invention, a bidirectional regulator is provided, which includes a regulator case, two buttons, a fixing sheet, and two locking parts. The regulator case has two first openings facing in opposite directions. The two buttons are respectively provided in the two first openings and can move along the advancing direction of the regulator case. The fixing sheet is fixed to the bottom of the regulator case and has two second openings. The two locking parts are provided inside the regulator case and form a locking position and a release position by moving together with the two buttons. Here, two bands enter the regulator case through the two second openings, pass through the gaps between the two locking parts and the fixing sheet, and protrude from the regulator case, thereby forming two free ends extending along opposite directions. Further, here, at the locking position, the two locking parts and the fixing sheet clamp the two bands respectively, and at the release position, the two locking parts and the fixing sheet allow the movement of the two bands.

[0051] In one embodiment, an elastic recovery component is provided between the two buttons to respectively provide an external moving force of the regulator case to the two buttons, and two tension indication windows for indicating whether the two bands are pulled are formed on the upper surface of the regulator case. According to another aspect of the present invention, a child seat is provided, which includes a base, a seat, and a tether assembly. The seat is connected to the base and includes a backrest. A reinforcing tube is formed at the top end of the backrest, and spacer rings are respectively formed on both sides of the reinforcing tube. The tether assembly includes a top tether and a tether fixing part. The top tether is connected to both sides of the lower end of the backrest, extends upward along the backrest, and passes through the spacer ring.

[0052] In one embodiment, the top tether is connected to a flexible component of the backrest.

[0053] In one embodiment, the connection part includes a fixed part and a moving part, a through hole is formed in the moving part, the fixed part passes through the through hole and both ends of the fixed part are fixed to the top lever, and the through hole permits the moving part to move within a certain distance range relative to the fixed part.

[0054] In one embodiment, an opening is provided in the upper part of the top lever, the top tether passes through the opening and a part of it is provided inside the top lever, the top lever includes two vertical queues, the two vertical queues (310) stand up symmetrically on the rear part of the base, one rail is connected to the upper part of the two vertical queues, the opening is provided in the upper part of each of the two vertical queues, two top tethers pass through the openings of the two vertical queues respectively and a part of them is provided inside the top lever, the driving part includes two connection parts, and the two top tethers are respectively connected to the two connection parts.

[0055] In one embodiment, the connection part is connected to the trigger part through an interlocking part, the trigger part is restricted to be movable within a certain distance range and includes an elastic recovery part, the elastic recovery part is configured to apply a force that each trigger part does not trigger the corresponding switch, the plurality of trigger parts respond to the pulling of the top tether, and the trigger part triggers by contacting the switch.

[0056] In one embodiment, the top lever includes a vertical queue and a rail, the vertical queue stands up at the rear part of the base, the rail is connected to the top end of the vertical queue, an opening is provided on the upper surface of the rail, a receiving part is provided on the lower surface of the rail, the switch is provided in the receiving part, one end of the top tether is fixed to the receiving part, and when the top tether is pulled, pressure is applied to the switch to trigger it, so that the switch provides a signal to the main body part.

[0057] In one embodiment, the top tether wraps around the top lever and the trigger part, and when the top tether is pulled, pressure is applied to the trigger part, so that the trigger part is moved inside the top lever to trigger the switch.

[0058] In one embodiment, the child seat further includes a plurality of trigger parts, the plurality of trigger parts respectively trigger their associated corresponding switches, and the corresponding switches provide signals to the main body part. One end of the top tether is connected to one of the plurality of trigger parts. The top lever includes a vertical queue and a receiving part. The vertical queue (310) stands upright at the center of the rear part of the base, and the receiving part is provided horizontally at the top end of the vertical queue. The opening is provided at the center of the upper surface of the receiving part, and the one end of the top tether is located in the receiving part.

[0059] In one embodiment, the one trigger part is provided on the base and is restricted to be movable within a certain distance range. When the top tether is pulled, the trigger part triggers the associated corresponding switch by contact.

[0060] In one embodiment, the lateral length of the receiving part is larger than the lateral length of the vertical queue. A stopper is provided at the one end of the top tether, and the stopper cannot pass through the opening. The internal space of the receiving part is configured to permit the one end of the top tether to move a certain distance in the vertical direction. The one trigger part is formed on the seat body, is connected to the one end of the top tether through an interlocking component, and has a longitudinally shaped through hole.

[0061] In one embodiment, an elastic recovery component is connected to the trigger part. The elastic recovery component applies a force to the trigger part so that the trigger part does not trigger the switch. A position limiting component passing through the longitudinally shaped through hole is formed on the base, and the position limiting component limits the movement range of the trigger part.

[0062] In another aspect, there is provided a child seat including a base, a seat, a top lever, and a tether assembly, wherein an anchor portion is provided on the base, the seat is connected to the base, the top lever includes a lever component and a receiving portion, the lever component is provided at the rear of the base, the receiving portion is provided on the lever component, and the tether assembly includes a top tether and a tether fixing portion, and the top tether is provided on the upper part of the lever component.

[0063] In one embodiment, the top tether is externally fitted on the upper part of the lever component, and the receiving portion limits the movement range of the top tether on the lever component. Here, one end of the top tether is provided in the internal space of the receiving portion and a trigger portion is provided, and at least one switch is further provided in the internal space of the receiving portion. When the top tether is pulled, the trigger portion triggers the at least one switch.

[0064] In one embodiment, a through hole is formed in the upper part of the lever component. Here, one end of the top tether passes through the through hole and is provided in the internal space of the receiving portion and a trigger portion is provided, a switch is provided in the internal space of the receiving portion, and the trigger portion triggers the switch by the pulling of the top tether.

[0065] In one embodiment, a flexible component is provided in the receiving portion, and the flexible component is provided inside the through hole to avoid direct contact between the top tether and the inside of the through hole.

[0066] In one embodiment, an elastic recovery component is provided in the receiving portion, and the elastic recovery component is provided between the receiving portion and the trigger portion, whereby a force that does not cause the trigger portion to trigger the one switch is applied to the trigger portion.

[0067] In one embodiment, the elastic recovery component is connected to the accommodating part and the trigger part to apply a tensile force, a groove for the trigger part to move is provided in the accommodating part, and the trigger part can trigger the switch when moving in the groove.

[0068] In another aspect, a child seat including an alarm device is provided. The alarm device provides an alarm mechanism for the safe installation of the child seat. The alarm device includes a plurality of switches, a main body part, and an alarm. The plurality of switches can be opened and closed. The main body part can determine whether to give an alarm based on the opening and closing of the plurality of switches. The alarm gives the alarm when the main body part determines to give an alarm.

[0069] In one embodiment, the child seat further includes a base, a top lever, and a tether assembly. The base is provided with an anchor part that projects rearward. The anchor part includes two anchor arms. The top lever is fixed to the rear part of the base. A part of the tether assembly is provided inside the top lever. The plurality of switches include two switches that are closed when the two anchor arms are fixed at a predetermined position and a switch that is closed by the tension of the tether assembly.

[0070] In one embodiment, the child seat further includes a base, a top lever, and a tether assembly. The base is provided with an anchor part that projects rearward. The anchor part includes two anchor arms. The top lever is fixed to the rear part of the base. The tether assembly includes one or two top tethers. A part of each of the two top tethers is provided inside the top lever. The plurality of switches include two switches that are closed when the two anchor arms are fixed at a predetermined position and two switches that are closed by the pulling of the one or two top tethers.

[0071] In one embodiment, the child seat includes a trigger portion configured to protrude downward from below the upper part of the top lever, where the top tether wraps around the trigger portion so that when the top tether is pulled, the top tether applies pressure to the trigger portion, and further, the trigger portion moves upward to trigger the switch.

[0072] In one embodiment, the top lever further includes a cover plate externally fitted to the upper part of the top lever, and the cover plate has an opening through which the top tether extends and protrudes. A groove for the trigger portion to move is formed in the cover plate, an elastic recovery component is connected between the cover plate and the trigger portion to apply a tensile force, at least a part of the one switch is provided in the groove, and when the trigger portion moves in the groove, the one switch is triggered.

[0073] In another aspect, a child seat attached to a vehicle seat is provided. The child seat includes a base, a seat, a top lever, a tether assembly, and an alarm device. The base has an anchor portion connected to the lower part of the vehicle seat. The seat is connected to the base. The top lever is fixed to the rear part of the base. The tether assembly includes a top tether connected to the top lever and a tether fixing portion. The top tether is connected to the top lever, and the tether fixing portion abuts against the upper part of the vehicle seat. The alarm device emits an alarm signal when it determines that a predetermined condition is satisfied, and does not emit an alarm signal when it determines that the predetermined condition is not satisfied. The predetermined condition is whether the top tether is pulled and / or whether the anchor portion is fixed at a predetermined position.

[0074] In another aspect, a child seat is provided that includes a base, a seat, and a tether assembly. The seat is rotatably connected to the base and further includes a backrest, with a reinforcement tube formed at the top end of the backrest. The tether assembly includes a top tether and a tether fixing part connected to each other, the top tether being connected to the lower end of the backrest, and the seat having a reinforcement structure for joining with the base.

[0075] In one embodiment, the base and the seat include corresponding ring portions (120, 220), the base is connected to the seat such that the seat can rotate relative to the base, and a base reinforcement part and a seat reinforcement part connected to each other are respectively provided on the ring portions of the base and the seat to strengthen the connection force between the seat and the base.

[0076] In one embodiment, the base has a plurality of base reinforcement parts, the seat has a plurality of seat reinforcement parts, the plurality of base reinforcement parts are circumferentially and uniformly provided on the circumference of the ring portion of the base, the plurality of seat reinforcement parts are respectively provided at positions corresponding to the plurality of base reinforcement parts, and the plurality of base reinforcement parts have different lengths.

[0077] In one embodiment, the base has a ring portion, a seat reinforcement part is provided on the seat, and the seat reinforcement part joins with the ring portion of the base to strengthen the connection force between the seat and the base.

[0078] In one embodiment, the seat includes two seat reinforcement parts, and the positions of the two seat reinforcement parts correspond to the opposite sides of the ring portion of the base.

[0079] In one embodiment, the top tether is connected to a flexible part of the backrest, the top tether is provided inside the backrest, and extends away from the backrest via the spacer ring.

[0080] In one embodiment, spacer rings are respectively formed on both sides of the reinforcing tube, and the top tether extends upward along the backrest and passes through the spacer rings.

[0081] In one embodiment, the base has a base reinforcement part, and the seat reinforcement part is joined to the base reinforcement part.

[0082] In one embodiment, the base has a ring part, and the seat reinforcement part is joined to the ring part.

[0083] In one aspect, the present invention provides a tether assembly for fixing a child seat to a vehicle, the tether assembly including a regulator, a tether fixing part, and a top tether. The regulator is used to adjust the length of the tether assembly. The tether fixing part is fixed to a corresponding fixing part of the vehicle. The top tether includes at least two straps, is connected to the child seat and the tether fixing part via the regulator, and at least one strap of the top tether passes through the regulator to form at least two free ends.

[0084] In one embodiment, the child seat includes a base, and is provided on a seat above the base and erected on a top lever at the rear of the base.

[0085] In one embodiment, the regulator is a one-way regulator, the top tether includes three straps, one end of the first strap and the second strap of the three straps are respectively fixed to both sides of the child seat, the other ends of the first strap and the second strap of the three straps are respectively connected to both ends of the third strap of the three straps via two one-way regulators, the tether fixing part is fixed or slidably connected to any one of the three straps, and the top tether passes through the two one-way regulators to form two free ends.

[0086] In one embodiment, the two one-way regulators are positioned along the same direction such that the two free ends extend along the same direction.

[0087] In one embodiment, the two one-way regulators are positioned along opposite directions such that the two free ends extend along opposite directions.

[0088] In one embodiment, the tether fixing part is fixedly or slidably connected to the first band or the second band.

[0089] In one embodiment, the tether fixing part is fixedly or slidably connected to the third band.

[0090] In one embodiment, the regulator is a two-way regulator or a one-way regulator, and the at least two free ends are formed by the top tether passing through a two-way regulator or a one-way regulator.

[0091] In one embodiment, the top tether includes three bands, one end of the first band and the second band of the three bands are respectively fixed to both sides of the child seat, and the other ends of the first band and the second band of the three bands are connected to one end of the third band of the three bands through a connecting component.

[0092] In one embodiment, the top tether further includes a fourth band, the third band and the fourth band are connected to the fourth band through two one-way regulators or one two-way regulator, and the tether fixing part is fixedly or slidably connected to the fourth band.

[0093] In one embodiment, the top tether includes three bands, both ends of the first band of the three bands are respectively fixed to both sides of the child seat, one end of the second band of the three bands is fixedly or slidably connected to the first band, one end of the third band of the three bands is connected to the other end of the second band through two one-way regulators or one two-way regulator, and the tether fixing part is fixedly or slidably connected to the other end of the third band.

[0094] In one embodiment, the top tether includes two straps. One end of each of the two straps is fixed to both sides of the child seat respectively, and the other ends of the two straps are connected to the adjuster respectively. The tether fixing part is fixed to or slidably connected to any one of the two straps. The adjuster is a bidirectional adjuster, and the bidirectional adjuster can adjust the length of the tether assembly along two opposite directions.

[0095] In one embodiment, the top tether includes two straps. One end of the first strap of the two straps is fixed to the child seat, and the other end of the first strap is connected to one end of the second strap of the two straps via two one-way adjusters or one bidirectional adjuster. The tether fixing part is fixed to or slidably connected to the other end of the second strap.

[0096] In one embodiment, the two one-way adjusters are positioned along opposite directions, and the space between the two one-way adjusters is connected by a connecting strap.

[0097] In one embodiment, the adjuster has a locked position and a released position. In the locked position, the top tether passing through the adjuster is locked by the adjuster. In the released position, the adjuster allows the top tether passing through the adjuster to move relative to the adjuster.

[0098] According to another aspect of the present application, there is provided a child seat including a base, a seat, a top lever, and the above-mentioned tether assembly. The base is provided with an anchor portion that projects rearward. The seat is connected to the base. The top lever is fixed to the rear portion of the base. The top tether of the tether assembly is fixed to the top lever.

[0099] In one embodiment, the top lever includes two vertical queues and a fixing portion, and openings are provided at the upper parts of the two vertical queues.

[0100] In one embodiment, the top lever includes two vertical arms and a fixing portion, and an opening is provided at the center of the upper surface of the fixing portion.

[0101] In one embodiment, the top lever includes one vertical arm and one accommodating portion, and an opening is provided at the center of the upper surface of the accommodating portion.

[0102] According to another aspect of the present application, a tether assembly for fixing a child seat to a vehicle is provided. The tether assembly includes a two-way adjuster, a tether fixing portion, and a top tether. The two-way adjuster can adjust the length of the tether assembly along two opposite directions. The tether fixing portion is fixed to a corresponding fixing portion of the vehicle. The top tether includes two or more straps separated from each other, is connected to the two-way adjuster and the child seat, and is connected to the two-way adjuster and the tether fixing portion.

[0103] In one embodiment, the two-way adjuster includes an adjuster case, two buttons, a fixing seat, and two locking components. The adjuster case has two first openings facing in opposite directions. The two buttons are respectively provided in the two first openings and can move along the advancing direction of the adjuster case. The fixing seat is fixed to the bottom of the adjuster case and has two second openings. The two locking components are provided inside the adjuster case and move together with the two buttons to form a locking position and a release position.

[0104] In one embodiment, the two straps enter the adjuster case through the two second openings, pass through the gap between the two locking components and the fixing seat, and extend out of the adjuster case, thereby forming two free ends extending along opposite directions. Further, here, at the locking position, the two locking components and the fixing seat clamp the two straps respectively, and at the release position, the two locking components and the fixing seat permit the movement of the two straps.

[0105] In one embodiment, at the release position, when pulling the free end, the tether assembly shortens, and when pulling portions of the two bands other than the free ends, the tether assembly lengthens.

[0106] In one embodiment, a spring is provided between the two buttons to provide a force for the two buttons to move outward of the regulator case.

[0107] In one embodiment, two tension indication windows for indicating whether the two bands are being pulled are formed on the upper surface of the regulator case.

[0108] The present invention provides a support structure for a child seat including a base, a top lever, and a top tether. The base is provided with a mounting position for attaching a seat. The top lever is fixed to the base and is located on one side of the mounting position. One end of the top tether is fixed to the top lever.

[0109] Compared with the prior art, the support structure of the child seat of the present invention fixes one top lever to the base, provides the top lever on one side of the mounting position for attaching the seat, and fixes one end of the top tether to the top lever. When the seat is attached to the mounting position in the forward direction, the top lever is located behind the seat. After the child seat is attached to the vehicle seat, the distance between the top lever and the vehicle seat is shorter than the distance between the seat and the vehicle seat. Therefore, the length required to connect the top tether fixed to the top lever to the corresponding position of the vehicle seat is smaller than the length required for fixing the top tether of the seat in the prior art. Thereby, the usage length of the top tether can be reduced, and furthermore, the material cost of the top tether can be reduced. When the seat is attached to the mounting position in the reverse direction, the mounting position of the base remains unchanged, and the seat is attached in the seat direction. At this time, the top lever and the top tether are located in front of the seat. The mounting path for attaching the top tether to the corresponding position of the vehicle seat is the same as the mounting path of the top tether when the seat is attached to the mounting position in the forward direction. Compared with the top tether fixed to the seat in the prior art, the mounting path for attaching the top tether to the corresponding position of the vehicle seat does not interfere with the passengers on the seat, improves the riding comfort and comfort of the passengers on the seat, and can avoid the passengers of the child seat from crying and making a noise.

[0110] Preferably, the top lever includes a support tube portion and a rail portion. The support tube portion is fixed to the base, and the rail portion is attached to the support tube portion.

[0111] Preferably, the support tube portion has a hollow structure, one through hole is provided in the rail portion, the through hole communicates with the inside of the support tube portion, and one end of the top tether passes through the through hole and is fixed to the inner wall of the support tube portion.

[0112] Preferably, it further includes a first connecting component. The first connecting component is provided through the support tube portion. A webbing loop is provided at one end of the top tether, and the webbing loop is externally fitted to the first connecting component.

[0113] Preferably, it further includes a second connecting component. A first connecting hole is provided in the rail part, a second connecting hole is provided in the support pipe part, and the second connecting component passes through the first connecting hole and the second connecting hole to fix the rail part to the support pipe part.

[0114] Preferably, the number of support pipe parts is two. The two support pipe parts are provided on the base at intervals. The rail part is fixed to the two support pipe parts. Two through holes are provided in the rail part, and the two through holes communicate with the inside of the two support pipe parts.

[0115] Preferably, the top tether includes a fixing part and a mounting part formed by intersecting with the two fixing parts. The two fixing parts pass through the two through holes, the two fixing parts are respectively fixed in the two support pipe parts, and the mounting part is connected to the seat of the vehicle.

[0116] Preferably, a first fixing component is provided at the other end of the top tether. A storage position for storing the top tether is provided on the base, and the first fixing component is detachably connected to the storage position.

[0117] Preferably, a second fixing component located at the storage position is provided on the base, and the first fixing component is detachably connected to the second fixing component.

[0118] Preferably, one of the first fixing component and the second fixing component has a structure of a male stopper, and the other of the first fixing component and the second fixing component has a structure of a female stopper.

[0119] Preferably, the storage position has an internal concave structure.

[0120] Preferably, it includes a reinforcing sheet for improving the strength of the top lever, and the reinforcing sheet is fixedly connected to the base and the top lever respectively.

[0121] Preferably, the bottom of the reinforcing sheet is fixed to the base, and the side wall of the reinforcing sheet is fixedly connected to the top lever.

[0122] Preferably, the lower part of the top lever is thicker than the upper part of the top lever.

[0123] Preferably, the base includes a case and a bracket, the bracket is provided inside the case, and the top lever passes through the case and is fixedly connected to the bracket.

[0124] To achieve the above second object, the present invention provides a child seat, including a seat and the support structure of the above child seat, and the seat is attached to the attachment position.

[0125] Compared with the prior art, the child seat of the present invention has a support structure for the child seat, fixes one top lever to the base, provides the top lever on one side of the attachment position for attaching the seat, and fixes one end of the top tether to the top lever. When the seat is attached to the attachment position in the forward direction, the top lever is located behind the seat. After the child seat is attached to the vehicle seat, the distance between the top lever and the vehicle seat is shorter than the distance between the seat and the vehicle seat. Therefore, the length required to connect the top tether fixed to the top lever to the corresponding position of the vehicle seat is smaller than the length required for fixing the top tether of the seat conventionally. Thereby, the use length of the top tether can be reduced, and further, the material cost of the top tether can be reduced. When the seat is attached to the attachment position in the reverse direction, the attachment position of the base remains unchanged, and the seat is attached in the seat direction. At this time, the top lever and the top tether are located in front of the seat, and the attachment path for attaching the top tether to the corresponding position of the vehicle seat is the same as the attachment path of the top tether when the seat is attached to the attachment position in the forward direction. Compared with the top tether fixed to the seat conventionally, the attachment path for attaching the top tether to the corresponding position of the vehicle seat does not interfere with the passengers on the seat, improves the riding comfort and comfort of the passengers on the seat, and can avoid the passengers on the child seat from crying and making a noise.

[0126] Preferably, when the seat is attached to the attachment position in the forward direction, the top lever is located behind the seat, and when the seat is attached to the attachment position in the reverse direction, the top lever is located in front of the seat.

[0127] The present invention has at least one of the following beneficial effects.

[0128] The child seat of the present invention can conveniently indicate that it is not properly fixed, thereby improving the safety of the child seat. Further, the child seat of the present invention can accurately indicate specific connection components that are not fixed in place. Due to the arrangement of the top lever, the seat can be freely arranged in various orientations, and the riding of the child is not hindered by the tether assembly. Since the tether assembly can be pulled in at least two directions, the installation of the child seat becomes more convenient. At the same time, since the application of the pulling force becomes more convenient, the pulling of the tether assembly is ensured, and the safety of the child seat is improved. By using a reinforcing component between the base and the seat, the resistance of the child seat to impact is improved.

[0129] The tether assembly of the present invention can be pulled in at least two directions, thereby facilitating the attachment of the tether assembly. At the same time, since it is more convenient to apply the pulling force, it is ensured that the tether assembly is pulled, and the safety of the tether assembly can be improved. The tether assembly of the present invention can be adjusted to a greater length. Since the tether assembly of the present invention can be pulled on different sides of the child seat, the pulling operation can be conveniently achieved regardless of which side of the vehicle seat the child seat is arranged on.

[0130] Various objects, features, and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The drawings are merely illustrative examples of the present invention and are not necessarily drawn to scale. Throughout the drawings, the same reference numerals represent the same or similar components.

Brief Description of the Drawings

[0131]

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Mode for Carrying Out the Invention

[0132] To further illustrate the principles and structure of the present invention, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the embodiments are used for illustration and explanation purposes only and do not limit the scope of patent protection of the present invention.

[0133] The terms used in the present invention are for the sole purpose of describing specific embodiments and are not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a", "said", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. The term "and / or" as used herein refers to any and all possible combinations of one or more of the associated listed items and is understood to include them.

[0134] The following is a more detailed description of various concepts and embodiments of a child seat that can rotate the seat between rearward, lateral, and forward positions for ease of use. It should be noted that the various concepts described above and discussed in more detail below can be implemented in various ways. Specific embodiments and examples of applications are mainly for the purpose of illustration to enable those skilled in the art to implement embodiments and alternatives that are obvious to those skilled in the art.

[0135] FIG. 1 is a perspective view of the child seat in the first embodiment of the present application, and FIG. 2 is a perspective view of the child seat in the first embodiment of the present application. Here, a part of the child seat is removed to show its internal structure.

[0136] The child seat 1 includes a base 10, a seat 20, a top lever 30, a tether assembly 40, and an alarm device 50. The base 10 is provided with a protruding anchor portion 110. The seat 20 is connected to the base 10. The top lever 30 is fixed to the rear portion of the base 10. The tether assembly 40 includes a top tether 410 and a tether fixing portion 450. The top tether 410 is connected to the top lever. The alarm device 50 gives an alarm based on whether the top tether 410 and the anchor portion 110 are fixed in predetermined positions. The alarm in this embodiment can be any means that can be presented or notified to the installer of the child seat 1. For example, the alarm device 50 can execute the alarm by at least one of sound and light. Note that the alarm device 50 can also execute the alarm by any other method.

[0137] Normally, when it is detected that the top tether 410 is pulled, it is determined that the top tether 410 is fixed in a predetermined position. Optionally, the alarm device 50 gives an alarm as to whether the top tether 410 is fixed to the corresponding interface of the vehicle.

[0138] In one embodiment, an opening 330 is provided in the upper portion of the top lever 30. The top tether 410 may pass through the opening 330 and a part of it may be provided inside the top lever 30.

[0139] The anchor portion 110 can be an ISOFIX type connector (a connector that can be fixed to an ISOFIX interface) and includes two anchor arms 111. The tether assembly 40 can be a Top Tether type connector (a connector that can be fixed to a Top Tether interface).

[0140] The tether fixing portion 450 can be a hook (or a hook - type anchor called) that can be fixed or slidably provided at the distal end of the top tether 410.

[0141] One end of the tether fixing part 450 may be connected to the top tether 410, and the other end of the tether fixing part 450 may be connected to the corresponding interface of the vehicle.

[0142] The seat 20 is rotatably disposed on the base 10 and is rotatable relative to the base 10 along an axis within an angular range substantially perpendicular to the upper surface of the base 10, for example, 0° to 180°, 0° to 270°, 0° to 180° to 360°, etc. The angular range may be different in other cases. The reference for the above rotation is that the position shown in FIG. 1 is regarded as 0°.

[0143] The lower and upper surfaces of the base 10 can form an angle such that the seat 20 inclines forward.

[0144] The top lever 30 includes a vertical queue 310 and a rail 320a. The vertical queue 310 stands symmetrically left and right at the rear of the base 10 (installed substantially vertically), one rail 320a is connected to the upper part of the vertical queue 310, and an opening 330 is provided at the top end of the vertical queue 310 respectively. A part of the top tether (that is, both ends of one top tether) is provided inside the top lever 30 through the opening of the vertical queue 310. The vertical queue 310 and the rail 320a may be made of different materials. For example, the vertical queue 310 is made of metal, while the rail 320a is made of plastic.

[0145] The position of the opening 330 can be the highest position of the vertical queue 310, or arranged on the rail 320a, or at the upper part of the vertical queue 310 but not the highest position. This can be selected according to the position requirements of the top tether 410.

[0146] Referring to FIG. 2, the child seat 1 further includes a driving component 60. The driving component 60 includes a trigger part 620 and a connecting part 610. Optionally, the driving component 60 includes an interlocking component 630 that connects the trigger part 620 and the connecting part 610. The interlocking component 630 is, for example, a steel wire, but is not limited thereto. The trigger part 620 may be provided on one side of the base 10, for example, at a position where the vertical queue 310 extends downward. For example, trigger parts 620 are respectively provided on both sides of the base 10. The connecting part 610 connects to the top tether 410 in the vertical queue 310 and enters the end in the vertical queue 310. The above-mentioned connecting part 610 may be position-limited to move in the vertical direction at a certain distance within the vertical queue 310. The connecting part 610 is provided movably within the vertical queue 310. In one embodiment, the connecting part 610 has a fixed part (for example, a lever part) and a moving part. The moving part is fixed to the end of the top tether 410, and a longitudinally shaped through hole is formed. The fixed part passes through the longitudinally shaped through hole and is horizontally configured in the vertical queue 310. Since the vertical length of the longitudinally shaped through hole is larger than the fixed part, the moving part can move vertically a certain distance relative to the fixed part. It should be noted that the connecting part 610 may be position-limited in other ways.

[0147] Alternatively, the trigger part 620a may be provided on the anchor arm 111 (as shown in FIG. 4), and thereby operates when the anchor arm 111 is fixed to an interface of the vehicle seat (for example, an ISOFIX interface). In one embodiment, the trigger part 620a is provided on both of the two anchor arms 111. Optionally, only one of the two anchor arms 111 is provided with the trigger part 620a. Optionally, one trigger part 620a is provided on one side of both sides of the base 10 and connected to one end of the top tether 410. Referring to FIGS. 2 and 3, the warning device 530 includes a main body part 510, a plurality of switches 520, and an alarm 530. The plurality of switches 520 are electrically connected to the main body part 510, provide a signal to the main body part 510, the main body part 510 determines whether to give a warning based on the signal, and the alarm 530 gives the warning when the main body part 510 determines to give a warning. The main body part 510 may be provided on the base 10.

[0148] The anchor arm 111 is connected to one end of the trigger part 620a, and the trigger part 620a is slidable relative to the base 10. When the anchor arm 111 is joined to the corresponding interface of the vehicle, the trigger part 620a is moved to trigger the corresponding switch 520. That is, when the anchor arm 111 (ISOFIX joint) engages with the corresponding interface (ISOFIX anchor part) of the vehicle, the trigger part 620a is moved, and the trigger part 620a presses and closes the corresponding switch 520. Further, a long groove for the trigger part 620a to slide is provided in the base 10, and the other end of the trigger part 620a protrudes from the long groove to act on the switch 520. Due to the long groove, it slides in the sliding direction when an external force is applied to the trigger part 620a. Further, the switch 520 includes a main body and an elastic sheet, and the elastic sheet is joined to the main body during the movement of the trigger part 620a to trigger, where the switch 520 is electrically connected to the warning device 50.

[0149] The trigger parts 620, 620a are limited to move within a certain distance range (e.g., 1 cm, 2 cm, 3 cm, 4 cm, 5 cm, 8 cm, 10 cm), and this movement can trigger the switch 520. The trigger part 620 includes an elastic recovery component, and the elastic recovery component is configured to apply a force that does not trigger the switch 520 by the trigger part 620. That is, when no tensile force is applied to the top tether 410, the elastic recovery component of the corresponding trigger part 620 is configured to recover the trigger part 620 to its initial state.

[0150] The trigger units 620, 620a can trigger the corresponding switches 520 by physically contacting the corresponding switches 520 in response to fixing the top tether 410 or the anchor unit 110 (specifically, the anchor arm 111) at a predetermined position. The main body 510 may be provided with a power supply device such as a battery, and may have a computing function or a logical judgment function. When all the different switches 520 provide signals to the main body 510, the main body 510 can process these signals and finally output an instruction on whether to alarm the alarm 530. The alarm 530 may include one sound alarm device 531 and one LED light warning device 532. The sound alarm device 531 can emit a prompt sound according to the instruction of the main body 510. The LED light warning device 532 may have LED lights corresponding to the number of switches 520, and for example, can be lit to indicate which switch 520 is not triggered (this indicates which of the top tether 410 and the anchor arm 111 is not pulled or not fixed at a predetermined position). The LED light warning device 532 can be arranged on the front of the base 10 (see FIG. 26). Optionally, the LED light warning device 532 has three LED lights arranged side by side, where one LED light is related to the switch 520 of the top tether 410, and two LED lights are respectively related to the switches 520 of the two anchor arms 111 of the anchor unit 110. Optionally, other illuminable devices such as LEDs may be replaced. The number of LED lights may be changed as needed. For example, it is provided with four or more LED lights. The main purpose of the LED lights is to warn that the tether assembly 40 or the anchor 110 is not attached. It should be noted that the LED light warning device 532 is applicable to each embodiment of the present application.

[0151] The warning device is configured to give an alarm when the top tether 410 is pulled and the anchor part 110 is not fixed at a predetermined position, or when the top tether 410 is not pulled and the anchor part 110 is fixed at a predetermined position, and not to give an alarm when the top tether 410 is pulled and the anchor part 110 is fixed at a predetermined position, or when the top tether 410 is not pulled and the anchor part 110 is not fixed at a predetermined position.

[0152] In one embodiment, four switches are respectively associated with two ends of the top tether 410 and two anchor arms 111 of the anchor part 110. At this time, when any one of the four switches is triggered, the warning device 50 gives an alarm, and when all the switches are triggered, the warning device 50 does not give an alarm.

[0153] In other words, the warning device 50 does not give an alarm when neither of the two top tethers 410 and the two anchor arms 111 is fixed (or pulled), gives an alarm when at least one of the two top tethers 410 and the two anchor arms 111 is not fixed (or pulled) (that is, not all are not fixed or not pulled), and does not give an alarm when both the two top tethers 410 and the two anchor arms 111 are fixed (or pulled).

[0154] At this time, the alarm may be that the warning device 50 emits a sound and / or the LED light warning device emits light, and not giving an alarm may be that the warning device 50 does not emit a sound and / or the LED light warning device does not emit light.

[0155] In other embodiments, the warning device 50 has three switches, which are respectively associated with two ends of the top tether 410 and one of the two anchor arms 111 of the anchor portion 110, or are respectively associated with one of the two ends of the top tether 410 and the two anchor arms 111 of the anchor portion 110.

[0156] In other embodiments, the warning device 50 has two switches, which are respectively associated with one of the two ends of the top tether 410 and one of the two anchor arms 111 of the anchor portion 110.

[0157] Optionally, the child seat 1 has a safe operating state, a non-operating state, and a malfunction state. In the safe operating state, the top tether 410 is pulled and the anchor portion 110 is fixed at a predetermined position. In the non-operating state, the top tether 410 is not pulled and the anchor portion 110 is not fixed at a predetermined position. The malfunction state is a state other than the non-operating state and the operating state. At this time, the warning device 50 is configured to give an alarm when the child seat 1 is in the malfunction state and not to give an alarm when the child seat 1 is in the safe operating state or the non-operating state.

[0158] FIG. 5 is a perspective view of a child seat according to a second embodiment of the present application, and FIG. 6 is a perspective view of a child seat according to a second embodiment of the present application. Here, a part of the child seat is removed to show its internal structure.

[0159] Hereinafter, mainly the differences between the second embodiment and the first embodiment will be described. In this embodiment, the top lever 30 includes two vertical queues 310 and one rail 320a. The two vertical queues 310 stand up symmetrically on the rear part of the base 10. One rail 320a is connected to the top ends of the two vertical queues 310. An opening 330 is provided at the center of the upper surface of the rail 320a, and a receiving portion 340 is provided at the center of the lower surface of the rail 320a.

[0160] The alarm device 50 has two or three switches 520, where one switch 520 is provided in the accommodating portion 340, and one end (one terminal) of the top tether 410 is fixed to the accommodating portion 340.

[0161] As shown in FIG. 6, one switch 520 is provided on one side of the top tether 410, whereby the top tether 410 extends bypassing the switch 520. When the top tether 410 is pulled (for example, to fix the tether fixing portion 450 of the tether assembly 40 to a corresponding structure), by applying pressure to one switch 520 to trigger the switch 520, the switch provides a signal to the main body portion 510, indicating that the top tether 410 is pulled at this time. The switch 520 may be connected to the main body portion 510 of the alarm device 50 by a signal line, and the signal line may pass through the internal space of the top lever 30. Optionally, the switch 520 may be wirelessly connected to the main body portion 510 of the alarm device 50, thereby transmitting a signal.

[0162] The child seat 1 further includes two trigger portions 620. The anchor portion 110 includes two anchor arms 111, and the two trigger portions 620 trigger the corresponding switches 520 (i.e., related to the switches of the two anchor arms 111 respectively) when the two anchor arms 111 are fixed at a predetermined position. In this embodiment, the portion of the anchor portion 110 and the related switch 520 and trigger portion 620 is substantially the same as that in the first embodiment.

[0163] The warning device 50 does not give an alarm when the top tether 410 is not pulled and neither of the two anchor arms 111 is fixed at a predetermined position, gives an alarm when the top tether 410 is pulled and any one of the two anchor arms 111 is not fixed at a predetermined position, and further does not give an alarm when the top tether 410 is pulled and both of the two anchor arms 111 are fixed at a predetermined position, or gives an alarm when the top tether 410 is not pulled and any one of the two anchor arms 111 is fixed at a predetermined position, and further does not give an alarm when the top tether 410 is pulled and both of the two anchor arms 111 are fixed at a predetermined position.

[0164] FIG. 7 is a perspective view of the child seat according to the third embodiment of the present application, and FIG. 8 is a perspective view of the child seat according to the third embodiment of the present application. Here, a part of the child seat is removed to show its internal structure.

[0165] The difference between the third embodiment and the first embodiment lies in the number and position of the top tethers 410. In the third embodiment, the child seat 1 has three trigger parts 620, and the three trigger parts 620 trigger three switches 520 associated therewith, and the corresponding switches 520 provide signals to the main body part 510. Specifically, one end of the top tether 410 is connected to one trigger part 620, and the two anchor arms 111 are respectively connected to the two trigger parts 620.

[0166] The top lever 30 includes a single vertical queue 310 and a housing part 340. The single vertical queue 310 stands upright at the center of the rear part of the base 10, and the housing part 340 is provided horizontally at the top end of the vertical queue 310. An opening 330 is provided at the center of the upper surface of the housing part 340. The said one end of the top tether 410 is located in the housing part 340.

[0167] As shown in FIG. 8, one trigger part 620 is provided on the base 10 and is restricted to be movable within a certain distance range. Specifically, by providing a position limiting part (for example, a through hole) on the trigger part 620, a position limiting part component (for example, a pin or a protrusion) fixed to the base 10 passes through the position limiting part. Since the longitudinal length of the position limiting part is larger than that of the position limiting part component, the trigger part 620 having the position limiting part can move a moving distance in the vertical direction, and further, the position limiting function is realized by the action of the position limiting part component on the edge of the position limiting part. When the top tether 410 is pulled, the trigger part 620 triggers one switch 520 by physical contact, and the switch 520 provides a signal to the main body part 510.

[0168] The lateral length of the accommodating part 340 is larger than the lateral length of the vertical queue 310. Optionally, the lateral length of the accommodating part 340 is 3 times, 4 times or 5 times larger than the lateral length of the vertical queue 310. In this way, by effectively abutting the accommodating part 340 against the vehicle seat backrest, the child seat 1 is further stabilized. The accommodating part 340 may have a specific radian in the lateral direction (the left - right direction in FIG. 8).

[0169] A stopper is provided at one end of the top tether 410 within the accommodating part 340. The size of the stopper cannot pass through the opening 330.

[0170] The internal space of the accommodating part 340 permits one end of the top tether 410 to move a certain distance in the vertical direction. That is, the accommodating part 340 has a certain height in the vertical direction. In this way, when the top tether 410 is pulled, one end of the top tether 410 can be transferred in the vertical direction, so as to operate the trigger part 620 through an interlocking part component 630 (for example, a steel wire or a cable), and the trigger part 620 triggers the corresponding switch 520. The trigger part 620 connected to the top tether 410 may be formed as a seat body.

[0171] The alarm device 50 does not give an alarm when the top tether 410 is not pulled and neither of the two anchor arms 111 is fixed at a predetermined position, gives an alarm when the top tether 410 is pulled and any one of the two anchor arms 111 is not fixed at a predetermined position, and further does not give an alarm when the top tether 410 is pulled and both of the two anchor arms 111 are fixed at a predetermined position, or gives an alarm when the top tether 410 is not pulled and any one of the two anchor arms 111 is fixed at a predetermined position, and further does not give an alarm when the top tether 410 is pulled and both of the two anchor arms 111 are fixed at a predetermined position.

[0172] FIG. 9 is a perspective view of some components of a child seat according to a fourth embodiment of the present application, FIG. 10 is a partial cross-sectional view of some components of a child seat according to a fourth embodiment of the present application, where the trigger part is not triggered, FIG. 11 is a partial cross-sectional view of some components of a child seat according to a fourth embodiment of the present application, where the trigger part is triggered. FIG. 12 is an exemplary perspective view of a child seat according to a fourth embodiment of the present application, FIG. 13A is an exemplary partial perspective view of a child seat according to a fourth embodiment of the present application, FIG. 13B is a partial cross-sectional view of a child seat according to a fourth embodiment of the present application, FIG. 14 is an exemplary partial cross-sectional view of a child seat according to a fourth embodiment of the present application, where the trigger part is not triggered, FIG. 15 is an exemplary partial cross-sectional view of a child seat according to a fourth embodiment of the present application, where the trigger part is triggered.

[0173] In this embodiment, the child seat 1 includes a base 10, a seat 20, a top lever 30, a tether assembly 40, and an alarm device 50. The base 10 is provided with two anchor arms 111 that project rearward. The seat 20 is connected to the base 10. The top lever 30 includes a lever component 350, and the lever component 350 is provided at the rear of the base. The tether assembly 40 includes a top tether 410. One end of the top tether 410 is fixed to the rear side (the left side in FIG. 9) of the upper part of the lever component 350. Further, it extends and passes under, in front of, and above the lever component 350 (that is, wraps around and is nearly three-quarters). Further, it extends away from the upper part. The alarm device 50 has three switches 520 and three trigger parts 620. When any one of the three switches 520 is not triggered, the alarm device 50 gives an alarm. The three trigger parts 620 trigger the three switches 520 respectively, and the trigger part 620 may be provided in the top lever 30. The trigger part 620 projects downward from the lower side of the upper part of the lever component 350 and contacts the top tether 410. When the top tether 410 is pulled, the top tether 410 pushes one trigger part 620 upward to trigger one switch 520. Further, when the two anchor arms 111 are fixed at a predetermined position, the other two trigger parts 620 trigger the other two switches 520. The lever component 350 may be U-shaped.

[0174] In this embodiment, the configuration of the switch 520 and the trigger part 620 of the two anchor arms 111 is the same as that of the above embodiment. An opening 330 is formed in the lever part 350. The opening 330 is formed at the center of the upper part of the lever part 350. The opening 330 may be configured to face downward. The trigger part 620 protrudes from the opening 330, and an elastic recovery part such as a spring is provided between the trigger part 620 and the lever part 350, so that the trigger part 620 is in a state of protruding from the opening 330. An attachment groove 352 may be formed in the opening 330. The attachment groove 352 is fixed to both sides and fixed to the lever part 350. The upper end of the recovery part may be in contact with the inner surface of the attachment groove 352 and also in contact with the trigger part 620. A vertical groove or through hole may be formed in the trigger part 620. Optionally, two vertical grooves or through holes are symmetrically formed on both sides of the trigger part 620. The position limiting part enters into the groove or through hole to limit the moving range of the trigger part 620 in the vertical direction. When the trigger part 620 protrudes from the opening 330, the elastic sheet of the switch 520 is not driven and the switch 520 is not triggered. When the trigger part 620 is operated to recover to the opening 330, the elastic sheet of the switch 520 is driven to trigger the switch 520.

[0175] The top tether 410 is wound around and contacts the trigger part 620, so that when the top tether 410 is pulled, pressure is applied to the trigger part 620. Therefore, the winding of the top tether 410 is not limited to the above. For example, the top tether 410 is wound around the upper part of the lever part 350, then around the front part and the lower part of the lever part 350, and further wound around the upper part of the lever part 350.

[0176] The top lever 30 further includes a cover plate 360, the cover plate 360 is externally fitted on the upper part of the lever component 350, and has an opening through which the top tether 410 projects. The cover plate 360 is formed of two halves and is fixed to the top lever 30 by a fastener. The cover plate 360 makes the upper part of the top lever 30 more aesthetically pleasing and is positioned so that the top tether 410 contacts the trigger part 620. The gap between the cover plate 360 and the lever component 350 is configured to permit the top tether 410 to advance along the opening of the cover plate 360, but to prevent the top tether 410 from sliding on the cover plate 360.

[0177] As shown in FIGS. 13A and 13B, the top tether 410 includes an adjustment band 411 and a connection band 412, the connection band 412 is connected to the lever component 350 and the adjuster 430, and the adjustment band 411 is connected to the tether fixing part 450 and the adjuster 430. One end of the adjustment band 411 enters the adjuster 430 and projects from the adjuster 430 to form a free end (not shown). The adjuster 430 can lock and release the adjustment band 411 passing through it (for example, by pressing a button). When the adjuster 430 releases the adjustment band 411, the adjustment band 411 can be pulled to extend the length of the adjustment band 411, and further, the free end can be pulled to shorten the length of the adjustment band 411.

[0178] FIG. 16 is a perspective view of the child seat in the fifth embodiment of the present application, where some components are removed to show the inside of the child seat, and FIG. 17 is another perspective view of the child seat in the fifth embodiment of the present application, where some components are removed to show the inside of the child seat.

[0179] The child seat in this embodiment includes a base 10, a seat 20, and a tether assembly 40. The seat 20 is connected to the base 10, and the seat 20 includes a backrest 230. A reinforcement tube 231 is formed at the top end of the backrest 230, and spacer rings 2311 are respectively formed on both sides of the reinforcement tube 231. The tether assembly 40 includes a top tether 410 and a tether fixing part (not shown). The top tether 410 is connected to both sides of the lower end of the backrest 230 and extends upward along the backrest 230 to pass through the spacer rings 2311.

[0180] The top tether 410 can be connected to a flexible part (not shown) of the backrest 230. The top tether 410 is provided on the inner side of the backrest 230 (the side facing the child sitting on the child seat), and extends away from the backrest 230 via the spacer rings 2311. Since the end of the top tether 410 is connected to the flexible part, when stress is applied, the plastic deforms, playing a buffering role and reducing the stress on the tether fixing part. Also, the top tether 410 extends upward from the lower end of the back, and the length of the top tether 410 is increased. When a force is applied, the tether itself has a certain amount of elongation, which also plays a specific buffering role.

[0181] FIG. 18 is a perspective view of the child seat in the sixth embodiment of the present application. FIG. 19 is a perspective view of some parts of the child seat in the sixth embodiment of the present application. FIG. 20 is a perspective view of some parts of the child seat in the sixth embodiment of the present application. Here, some parts are removed to show the inside of the child seat. FIG. 21 is a plan view of the child seat in the sixth embodiment of the present application when the top tether is not pulled. FIG. 22 is a plan view of the child seat in the sixth embodiment of the present application when the top tether is pulled. FIG. 23 is another perspective view of some parts of the child seat in the sixth embodiment of the present application.

[0182] In this embodiment, the child seat includes a base 10, a seat 20, a top lever 30, a tether assembly 40, and an alarm device 50. The base 10 is provided with an anchor portion 110 that projects rearward. The seat 20 is connected to the base 10. The top lever 30 includes a lever component 350 and a housing portion 340. The lever component 350 is provided at the rear of the base, and the housing portion 340 is provided above the lever component. The tether assembly 40 includes a top tether 410 and a tether fixing portion 450. The top tether is externally fitted above the lever component. The alarm device 50 can give an alarm based on whether the top tether is pulled and whether the anchor portion is fixed at a predetermined position. The lever component 350 may be formed as a U-shaped lever.

[0183] The alarm device 50 includes a main body portion 510, a plurality of switches 520, and an alarm 530. The main body portion 510 determines whether to give an alarm. The plurality of switches 520 are electrically connected to the main body portion and provide signals to the main body portion. The alarm 530 gives an alarm when the main body portion determines to give an alarm.

[0184] Optionally, the top tether 410 is externally fitted onto the upper part of the lever component 350, and further, the accommodating part 340 limits the movement range of the top tether 410 on the lever component 350. As shown in FIG. 20, the top tether 410 is divided into two bands at the upper part of the lever component 350 to form a ring shape, thereby bypassing the lever component 350 and being combined into one band at the lower part of the lever component 350. One end of the top tether 410 is provided in the internal space (mounting groove 352) of the accommodating part 340 and further has a trigger part 620. The trigger part 620 can move vertically a certain distance within the mounting groove 352. A longitudinally shaped hole is formed in the center of the trigger part 620, and one end of the top tether 410 is fixed to the longitudinally shaped hole so that the trigger part 620 moves in response to the movement of the top tether 410. An elastic recovery component 640 (such as a spring) is provided in the accommodating part 340, and both ends are respectively connected to the accommodating part 340 and one side of the trigger part 620. In this embodiment, the elastic recovery components 640 are connected to both the left and right sides of the trigger part 620. Note that other numbers of elastic recovery components 640 may be provided. One switch 520 is further provided in the internal space of the accommodating part 340. The switch 520 may be provided on one side of the vertical movement path of the trigger part 620, and a part of the sheet body on the switch 520 may be located in the movement path. When the top tether 410 is pulled (i.e., when the top tether 410 is pulled externally), the trigger part 620 presses the sheet body on the switch 520 to trigger the switch 520 (see FIGS. 21 and 22), whereby the switch 520 provides a signal to the main body part. The signal indicates that the tether assembly 40 is in a state of being fixed at a predetermined position. For the configuration of other switches among the plurality of switches 520, refer to the above embodiment. FIG. 24 is a side view of some components of the child seat in the seventh embodiment of the present application, where the tether fixing part is separated from the top tether, and FIG. 25 is an exemplary cross-sectional view of some components of the child seat in the seventh embodiment of the present application.

[0185] In this embodiment, a through hole 351 may be formed in the upper part of the lever component 350 (i.e., openings are formed in the upper and lower surfaces of the lever component 350). One end of a top tether 410 (not shown) passes through the through hole 351 and is provided in the internal space (mounting groove 352) of the accommodating portion 340. The trigger portion 620 is provided, and a switch 520 is further provided in the internal space of the accommodating portion 340. One end of the top tether 410 is connected to the trigger portion 620 (refer to the sixth embodiment for the connection method). By pulling the top tether 410 (i.e., pulling out the top tether 410 from the mounting groove 352 through the through hole 351), the trigger portion 620 is moved upward. The switch 520 is provided at a position on the rear side (the left side in FIG. 25) within the mounting groove 352, and at least a part of the sheet body of the switch 520 is located on the upward movement path of the trigger portion 620. When the trigger portion 620 moves upward, the sheet body of the switch 520 is pressed to trigger the switch 520, whereby the switch 520 provides a signal to the main body portion 510. The signal indicates that the tether assembly 40 is in a state of being fixed at a predetermined position. A flexible component 341 is provided in the accommodating portion 340. The flexible component 341 is provided inside the through hole and is joined to the upper end of the flexible component 341 to avoid the top tether coming into direct contact with the inside of the through hole. That is, when the top tether 410 moves in the through hole 351, the top tether 410 does not come into direct contact with the lever component 350 (usually formed of metal) and contacts the flexible component 34. For the configuration of other switches among the plurality of switches 520, refer to the above embodiments.

[0186] An elastic recovery component (such as a spring) 640 is provided in the accommodating portion. By providing the elastic recovery component 640 between the accommodating portion 340 and the trigger portion 620, a force is applied to the trigger portion to cause the trigger portion 620 not to trigger the switch 520 (i.e., to restore the trigger portion 620 to the initial state below).

[0187] Other contents of this embodiment are substantially the same as those of the sixth embodiment. FIG. 26 is a perspective view of the top surface of the base and the top lever of the child seat of the present application, and FIG. 27 is a perspective view of the bottom surface of the seat of the child seat of the present application.

[0188] The base 10 includes a ring portion 120. The seat 20 includes a ring portion 220. The ring portions 120 and 220 correspond to each other. The base 10 and the seat 20 are connected to each other via a connection axis at the central position of the ring portions 120 and 220, and the seat 20 can rotate with respect to the base 10. Base strengthening components 121 and seat strengthening components 221 that lock to each other are provided on the ring portions 120 and 220 of the base 10 and the seat 20 to strengthen the connection force between the base 10 and the seat 20. When the seat 20 rotates to a specific use angle with respect to the base 10, for example, when rotating to 0° or 180° (corresponding to the forward use position and the rearward position of the seat 20), the base strengthening component 121 and the seat strengthening component 221 are joined to each other to realize the strengthening function.

[0189] Four base reinforcement components 121 and four seat reinforcement components 221 are respectively provided on the ring part 120 of the base 10 and the ring part 220 of the seat 20. The four base reinforcement components 121 are circumferentially and uniformly provided on the circumference of the ring part 120 of the base 10. The four seat reinforcement components 221 can be respectively provided at positions corresponding to the four base reinforcement components 121. That is, the four seat reinforcement components 221 are also circumferentially and uniformly provided on the circumference of the ring part 220 of the seat 20. One base reinforcement component 121 and one seat reinforcement component 221 are provided on one side (rear side) close to the top lever 30 of the ring parts 120 and 220, and the length extending along the circumferences of the ring parts 120 and 220 is greater than that of the other three base reinforcement components 121 and seat reinforcement components 221. Another base reinforcement component 121 and another seat reinforcement component 221 are provided on the front side of the ring parts 120 and 220, and the length extending along the circumferences of the ring parts 120 and 220 is smaller than that of the rear base reinforcement components 121 and seat reinforcement components 221, but greater than that of the base reinforcement components 121 and seat reinforcement components 221 on both the left and right sides. The base reinforcement component 121 and the seat reinforcement component 221 are, for example, composed of iron pieces, but the present application is not limited thereto. The number of the base reinforcement component 121 and the seat reinforcement component 221 may be different, for example, 5, 6, or 8, and the present application is not limited thereto. The base reinforcement component 121 and the seat reinforcement component 221 may be distributed uniformly or non-uniformly along the ring parts 120 and 220.

[0190] When the child seat 1 is impacted, since the front-rear reversal force of the child seat 1 becomes the largest, the longest base reinforcement component 121 and seat reinforcement component 221 are provided on the rear side to improve the ability to withstand the forward reversal force, and the relatively long base reinforcement component 212 and seat reinforcement component 221 are provided on the front side to improve the ability to withstand the rearward reversal force.

[0191] FIG. 28 is a perspective view of the upper surface of another embodiment of the base of the child seat of the present application, FIG. 29 is a perspective view of the upper surface of another embodiment of the base of the child seat of the present application, where some parts are removed, and FIG. 30 is a perspective view of the bottom surface of another embodiment of the seat of the child seat of the present application.

[0192] The base 10 includes a ring portion 120. The seat 20 includes a ring portion 220. The base 10 and the seat 20 are connected to each other via a connection axis at the central position of the ring portions 120, 220, and the seat 20 can rotate with respect to the base 10. Reinforcing parts 221 for locking with the ring portion 120 of the base 10 are respectively provided on the ring portion 220 of the seat 20. In this embodiment, even when the seat 20 and the base 10 form an arbitrary angle, the reinforcing part 221 can be joined to the ring portion 120 of the base 10. That is, when the seat 20 rotates with respect to the base 10, the reinforcing part 221 slides circumferentially along the ring portion 120. Thus, even if the use angle of the seat 20 is adjusted, the joining of the seat 20 and the base 10 can be strengthened.

[0193] A various number of reinforcing parts 221 such as 2, 3, 4, 5, 6, 8 can be provided. The plurality of reinforcing parts 221 can be provided at different positions on the ring portion 220. As shown in FIG. 30, two reinforcing parts 221 are respectively provided at the front part and the rear part of the ring portion 220. This is provided based on the force of the child seat when an impact occurs. Optionally, the plurality of reinforcing parts 221 can have the same length and thickness and provide the same degree of reinforcement in different directions, or can have different lengths and thicknesses and provide different degrees of reinforcement in different directions.

[0194] FIG. 31 is a side view of one embodiment of the child seat of the present application, and FIG. 32 is a plan view of one embodiment of the child seat of the present application.

[0195] The child seat 1 includes a base 10, a seat 20 provided on the base 10, and a top lever 30 erected at the rear of the base 10.

[0196] Base 10 may include an anchor portion 110 that projects rearward. The anchor portion 110 can be an ISOFIX type connector (a connector that can be fixed to an ISOFIX interface) and includes two anchor arms 111.

[0197] The child seat 1 may include a tether assembly 40. Optionally, the tether assembly 40 can also be a separate assembly other than the child seat 1. The tether assembly 40 can be a Top Tether type connector (a connector that can be fixed to a Top Tether interface).

[0198] The top lever 30 may be fixed to the rear portion of the base 10. Specifically, the top lever 30 may be substantially vertically erected at the rear portion of the base 10. An opening 330 is provided at the upper portion of the top lever 30. In different embodiments, one or two openings 330 are provided in the top lever 30. The top tether 410 (described in detail below) of the tether assembly 40 is fixed to the child seat 1 through the opening 330. For example, the top tether 410 enters and is fixed into the top lever 30 through the opening 330.

[0199] In one embodiment, the top lever 30 includes two vertical queues 310 and one fixing portion 320, and an opening 330 is provided at the upper portions of the two vertical queues 310.

[0200] One ends of two bands (for example, a connection band 412 and an adjustment band 411) of the top tether 410 are respectively fixed to the top lever 30 through the two vertical queues 310. One connection band 412 and two adjustment bands 411 of the top tether 410 are connected to each other through two adjusters 430, and a tether fixing portion 450 is fixedly or movably connected to one adjustment band 411, whereby the whole tether assembly 40 is formed in a Y shape or a V shape. One ends of the above bands can move a certain distance at the top lever 30.

[0201] One end of each of two bands of the top tether 410 (e.g., two connection bands 412) is fixed to the top lever 30 via two vertical queues 310 respectively. Two regulators 430 are fixed to the other ends of the above two bands. Both ends of one adjustment band 411 pass through the two regulators 430 to form two free ends 4111 respectively, and the tether fixing part 450 is fixed or movably connected to the adjustment band 411, whereby the whole of the tether assembly 40 is formed in a Y shape or a V shape.

[0202] One end of each of two bands of the top tether 410 (e.g., two connection bands 412) is fixed to the top lever 30 via two vertical queues 310 respectively. A connecting component 460 is fixed to the other ends of the above two bands. One end of one adjustment band 411 is fixed to the connecting component 460. The other end of the adjustment band 411 passes through one regulator 430, and the other adjustment band 411 passes through the other regulator 430, thereby forming two free ends 4111, and the whole of the tether assembly 40 is formed in a Y shape or a V shape. The above two regulators 430 can be connected to each other (e.g., via the connection band 412).

[0203] In one embodiment, both ends of one band of the top tether 410 (e.g., the connection band 412) are fixed to the top lever 30 via two vertical queues 310 respectively. The adjustment band 411 is fixed or slidably connected to the above band (optionally, other adjustment bands 411, connection bands 412 and b regulators 430 are connected), and the whole of the tether assembly 40 is formed in a T shape.

[0204] In one embodiment, as shown in FIG. 36, the top lever 30 includes two vertical queues 310 and one fixing part 320.

[0205] Specifically, the top lever 30 includes two vertical queues 310 and a fixing part 320. The two vertical queues 310 stand up symmetrically on the rear part of the base 10, the fixing part 320 is connected to the top ends of the two vertical queues 310, and a receiving part 340 is provided at the center of the lower surface of the fixing part 320.

[0206] One end of one of the bands of the top tether 410 (for example, the connecting band 412) may be fixed to the top lever 30. One end of the above band can move a certain distance at the top lever 30.

[0207] In one embodiment, as shown in FIG. 37, the top lever 30 includes one vertical queue 310 and one accommodating portion 340.

[0208] One end of one of the bands of the top tether 410 (for example, the connecting band 412) may be fixed to the top lever 30. One end of the above band can move a certain distance at the accommodating portion 340. In the present application, two regulators 430 can be switched to one bidirectional regulator 440 (described below). One regulator 430 can be switched to one bidirectional regulator 440.

[0209] The vertical queue 310 and the fixing portion 320 may be made of different materials. For example, the vertical queue 310 is made of metal, while the fixing portion 320 is made of plastic.

[0210] The seat 20 is rotatably provided on the base 10 and can rotate within a certain angular range with respect to the base 10 along the position axis perpendicular to the upper surface of the base 10. The lower surface and the upper surface of the base 10 form an angle, and the seat 20 inclines forward.

[0211] FIG. 38 is a schematic diagram of one embodiment of the tether assembly of the present application.

[0212] The tether assembly 40 includes at least two regulators 430, a top tether 410, and a tether fixing portion 450. The top tether 410 is fixed to the child seat 1 and forms a free end 4111 that passes through at least two regulators 430 and is the same as the number of at least two regulators. The tether fixing portion 450 is connected to the top tether 410 and fixed to the vehicle. Any of the at least two regulators 430 can lock or release the top tether 410 passing through it.

[0213] In one embodiment, the tether assembly 40 has two regulators 430. However, the tether assembly 40 may have three or more regulators 430. As shown in FIG. 42, the connection band 412 enters the regulator 430 from one side, further bypasses the fixing part of the regulator 430, and projects from the lower side to the regulator 430. In this way, the connection band 412 is fixed to the regulator 430. The adjustment band 411 (for example, connected to the tether fixing part 450) enters the regulator 430 from the lower opening of the regulator 430, bypasses a part of the button 432, passes under the button 432, and a gap is formed between the regulator case 431, and finally projects from the left side of the regulator 430 to form a free end 4111. When the button 432 is pushed to the right, the gap between the button 432 and the regulator case 431 becomes larger, and the adjustment band 411 can move freely with respect to the regulator 430. When the button 432 is released, the gap between the button 432 and the regulator case 431 becomes smaller (for example, due to the elastic force of the spring), whereby the adjustment band 411 is clamped (locked) by the button 432 and the regulator case 431 and cannot move freely with respect to the regulator 430.

[0214] FIG. 34 is a plan view of the regulator of the tether assembly of the present application, and FIG. 35 is a perspective view of the regulator of the tether assembly of the present application.

[0215] In one embodiment, one end of the regulator 430 is set as an adjustment end, and the adjustment end is set as a button, for example.

[0216] In other embodiments, the regulator 430 includes a regulator case 431 and a button 432. One side of the button 432 has an opening, for example, the opening is above or below the button 432. A tether (for example, the following adjustment band 411) enters the inside of the button 432 from the opening, passes through a slit formed by the button 432 and the case 431 with a variable width, and projects from the opening.

[0217] The adjuster 430 may include a restoring mechanism such as a spring. When the button 432 is not pressed, the slit tends to contract. As a result, the tether passing through the adjuster 430 is locked and cannot move relative to the adjuster 430. When the button 432 is pressed, the slit tends to increase, allowing the tether passing through the adjuster 430 to move relative to the adjuster 430.

[0218] The adjuster 430 can also have other configurations. For example, the tether can enter from one side of the adjuster 430 and extend from the other side. The structure of the adjuster 430 is not limited here as long as the adjuster has the function of adjusting the length of the tether passing through it and locking the tether when adjustment is not required.

[0219] A fixing portion is provided on the other side of the adjuster 430, whereby another tether is fixedly connected to the adjuster 430.

[0220] An opening is formed in the adjuster 430 to indicate a mark for locking or releasing the adjuster 430. The mark is, for example, a mark having a different color.

[0221] The tether fixing portion 450 can be a hook (or a hook-type anchor component), and it is fixedly or slidably provided at the distal end of the top tether 410.

[0222] The two adjusters 430 of the tether assembly 40 may be provided along opposite directions, and the two free ends 4111 formed by the top tether 410 passing through the two adjusters 430 project along opposite directions. Since the top tether 410 is flexible, the direction of the adjuster 430 provided on the top tether 410 may be changed, and the fact that the two adjusters 430 are provided along opposite directions means that after the tether assembly 40 fixes the child seat 1 to the vehicle, in the state where the tether assembly 40 is pulled, the two adjusters 430 are provided substantially along opposite directions. The fact that the two free ends 4111 are along opposite directions means that after the tether assembly 40 fixes the child seat 1 to the vehicle, the initial directions when the two free ends 4111 project from the two adjusters 430 are substantially opposite, and due to gravity, the two free ends 4111 will, for example, assume a hanging posture. Optionally, the tether assembly 40 has only one adjuster 430.

[0223] The two adjusters 430 of the tether assembly 40 may be provided along the same direction, and the two free ends 4111 formed by the top tether 410 passing through the two adjusters 430 project along the same direction.

[0224] As shown in FIG. 38, in one embodiment, the top tether 410 has a first adjustment band 411a, a second adjustment band 411b, a first adjuster 430a, a second adjuster 430b, and a connection band (or a first connection band) 412. The first adjustment band 411a, the second adjustment band 411b, and the connection band 412 are connected to each other (for example, directly connected or connected to each other via the first adjuster 430a and the second adjuster 430b) to constitute the top tether 41.

[0225] One end of the connection band 412 is fixed to one side of the top lever 30 (for example, inside one of the vertical queues 310), and the other end of the connection band 412 is fixed to the first adjuster 430a.

[0226] One end of the first adjustment band 411a is fixed to the other side of the top lever 30 (for example, inside the other vertical queue 310), and the other end of the first adjustment band 411a passes through the second adjuster 430b to form a free end 4111 that projects out to the child seat 1.

[0227] One end of the second adjustment band 411b is fixed to the second adjuster 430b, and the other end of the second adjustment band 411b passes through the first adjuster 430a to form a free end 4111 that projects away from the child seat 1.

[0228] One end of the tether fixing part 450 is slidably or fixedly connected to the second adjustment band 411b, and the other end of the tether fixing part is formed as a hook.

[0229] In this way, the tether assembly 40 can be pulled along two opposite directions, which facilitates the installation of the tether assembly 40 and makes it easier to apply a pulling force, thus ensuring the pulling of the tether assembly 40 and improving the safety of the tether assembly. Furthermore, the tether assembly 40 can be adjusted significantly in length.

[0230] Optionally, in this embodiment, the top tether 410 may have only one adjuster 430. Optionally, in this embodiment, the top tether 410 has three adjusters 430. Optionally, the adjuster 430 is a two-way adjuster (described below).

[0231] As shown in FIG. 39, in one embodiment, the top tether 410 has a first adjustment band 411a, a second adjustment band 411b, a first adjuster 430a, a second adjuster 430b, a first connection band 412a, and a second connection band 412b.

[0232] Both ends of the first connection band 412a are respectively fixed to both sides of the top lever 30, for example, respectively fixed on or inside two vertical queues 310.

[0233] One end of the first adjustment band 411a is slidably or fixedly connected to the first connection band 412a, and the other end of the first adjustment band 411a passes through the first adjuster 430a to form a free end 4111 that projects out to the child seat 1.

[0234] Both ends of the second connection band 412b are respectively fixed to the first adjuster 430a and the second adjuster 430b.

[0235] One end of the second adjustment band 411b passes through the second adjuster 430b to form a free end 4111 that projects away from the child seat 1, and a tether fixing portion 450 is fixed to the other end of the second connection band 412b.

[0236] In this way, the tether assembly 40 occupies less space and facilitates attachment to a relatively narrow vehicle body. Optionally, in this embodiment, the top tether 410 may have only one adjuster 430. Optionally, in this embodiment, the top tether 410 may have three adjusters 430. Optionally, one adjuster 430 may be a two-way adjuster (described below).

[0237] As shown in FIG. 40, the tether assembly further includes a connecting component 460, which is used to connect two connection bands 412 and one adjustment band 411. The two connection bands 412 may be fixed to one side of the connecting component 460, and the one adjustment band 411 may be fixed to the other side of the connecting component 460. The connecting component 460 may be an iron piece with three longitudinally shaped holes formed on its upper surface.

[0238] Optionally, in this embodiment, the top tether 410 may have only one adjuster 430. Optionally, in this embodiment, the top tether 410 may have three adjusters 430. Optionally, one adjuster 430 may be a two-way adjuster (described below).

[0239] FIG. 41 is a schematic diagram of another embodiment of the tether assembly of the present application.

[0240] The tether assembly 40 has a first adjuster 430a, a second adjuster 430b and an adjustment strap 411. The first adjuster 430a and the second adjuster 430b are provided along the same direction. Both ends of the adjustment strap 411 pass through the first adjuster 430a and the second adjuster 430b respectively, forming two free ends 4111 that project in the same direction (the direction away from the child seat). The first adjuster 430a and the second adjuster 430b are respectively fixed to both sides of the top lever 30 through a connection strap 412. A tether fixing part 450 is slidably connected to the adjustment strap 411.

[0241] In this way, when the child seat 1 is attached to the right seat and the left seat of the vehicle, the tether assembly 40 can be adjusted with the adjuster closer to one side, which is convenient for applying force. Adjustment by two adjusters has a similar effect. Also, the two adjusters enable a wider range of length adjustment of the tether assembly 40.

[0242] Optionally, in this embodiment, the top tether 410 may have only one adjuster 430. Optionally, in this embodiment, the top tether 410 has three adjusters 430. Optionally, one adjuster 430 may be a two-way adjuster (described below).

[0243] FIG. 43 is a schematic diagram of an embodiment of the tether assembly 40 of the child seat of the present application. The tether assembly 40 includes a top tether 410, an adjuster 430, and a tether fixing part 450. The top tether 410 includes an adjustment strap 411 and a connection strap 412. The adjustment strap 411 passes through the adjuster 430 and projects as a free end 4111. There is a button on the adjuster 430. When the button is not pressed, the adjuster 430 locks the adjustment strap 411, and when the button is pressed, the adjuster 430 releases the adjustment strap 411. At this time, the length of the adjustment strap 411 can be shortened by pulling the free end 4111, and the length of the adjustment strap 411 can be increased by pulling the adjustment strap 411.

[0244] Figure 44 is a schematic diagram of another embodiment of the tether assembly 40 of the child seat of the present application. The tether assembly 40 has two regulators 430. The two regulators 430 are provided along opposite directions. The top tether 410 includes two adjustment straps 411 and one connection strap 412. The connection strap 412 is connected between the two regulators 430. The two adjustment straps 411 pass through the two regulators 430 to form two free ends 4111 directed in opposite directions, whereby the length of the tether assembly 40 can be adjusted along two opposite directions by pulling the two free ends 4111.

[0245] In one embodiment, the tether fixing part 450 is fixed to one end of one of the two adjustment straps 411. The other end of the two adjustment straps 411 is fixed to the top lever 30.

[0246] In another embodiment, the tether fixing part 450 is rotatably connected to one of the two adjustment straps 411. The other one of the two adjustment straps 411 is fixed to the top lever 30.

[0247] In another embodiment, the tether assembly 40 further includes a bidirectional regulator 440. The bidirectional regulator 440 can adjust the length of the tether assembly 40 along two opposite directions. That is, the two adjustment straps 411 pass through the bidirectional regulator 440 from both ends to form two free ends 4111 directed in opposite directions, whereby the length of the tether assembly 40 can be adjusted along two opposite directions by pulling the two free ends 4111.

[0248] Figure 45 is a schematic diagram of another embodiment of the tether assembly of the child seat of the present application, and Figure 46 is a schematic diagram of another embodiment of the tether assembly of the child seat of the present application. The embodiments shown in Figures 45 and 46 are similar to the embodiments shown in Figures 43 and 44, and the difference is that the bidirectional regulator 440 switches the two regulators 430 and the connection strap 412.

[0249] FIG. 47 is a perspective view of the bidirectional adjuster of the child seat of the present application, FIG. 48 is another perspective view of the bidirectional adjuster of the child seat of the present application, FIG. 49 is a cross-sectional view of the bidirectional adjuster of the child seat of the present application, where the button is not pressed, FIG. 50 is a cross-sectional view of the bidirectional adjuster of the child seat of the present application, where the button is pressed, FIG. 51 is a cross-sectional view of the bidirectional adjuster of the child seat of the present application, FIG. 52 is a top view of the bidirectional adjuster of the child seat of the present application, where the button is not pressed, FIG. 53 is a bottom view of the bidirectional adjuster of the child seat of the present application, where the button is not pressed, FIG. 54 is a top view of the bidirectional adjuster of the child seat of the present application, where the button is pressed, and FIG. 55 is a cross-sectional view of the bidirectional adjuster of the child seat of the present application.

[0250] The bidirectional adjuster 440 includes an adjuster case 441, two buttons 442, a fixed seat 443, and two locking components 444. The adjuster case 441 has two first openings facing in opposite directions. The two buttons 442 are respectively provided in the two first openings and can move along the advancing direction of the adjuster case 441. The fixed seat 443 is fixed to the bottom of the adjuster case 441 and forms two second openings. The two locking components 444 are provided inside the adjuster case 441 and move together with the two buttons 442, thereby forming a locked position and a released position. Here, two straps (for example, the top tether 410) enter the adjuster case 441 through the two second openings, pass through the gap between the two locking components 444 and the fixed seat 443, protrude from the adjuster case 441, and form two free ends extending along opposite directions. Further, here, in the locked position, the two locking components 444 and the fixed seat 443 clamp the two straps respectively, and in the released position, the two locking components 444 and the fixed seat 443 permit the movement of the two straps.

[0251] A spring is provided between the two buttons 442 to provide a restoring force to the two buttons 442 with respect to the adjuster case 441. Two tension indication windows 445 are formed on the upper surface of the regulator case 441, and can respectively indicate whether tension is applied to the two bands. Different positions on the upper surfaces of the two buttons 442 can be marked with different colors. Therefore, when the button 442 is in the locked position, the tension indication window 445 indicates one color (e.g., green) on the upper surface of the button 442, and when the button 442 is in the released position, the tension indication window 445 indicates another color (e.g., red) on the upper surface of the button 442. Optionally, the tension indication window 445 may also be provided at other positions of the regulator case 441, such as the side surface, the bottom surface, and both ends, and the present application is not limited thereto. The tension indication window 445 can also use other methods to provide information such as lines, graphic marks, etc., and the present application is not limited thereto. The tension indication window 445 can also be formed of a transparent material to enable observation inside the regulator case 441.

[0252] The bidirectional regulator 440 can adjust the length of the top tether 410 in different directions.

[0253] As shown in FIG. 55, when the top tether 410 passes through the bidirectional regulator 440, first, it enters the regulator case 441 upward from the opening of the locking component 444, then passes upward through the inside of the fixing sheet 443 and the button 442 (the center in FIG. 55), then bypasses the fixing sheet 443, extends downward from the outside of the fixing sheet 443 (the two left and right sides in FIG. 55) and passes through the gap between the fixing sheet 443 and the locking component 444, and finally protrudes outside from the regulator case 441 under the locking component 444.

[0254] In this way, when the top tether 410 is pulled, the top tether 410 is clamped between the locking component 444 and the fixing sheet 443 (when the adjustment band 411 is pulled, the top tether 410 pulls the fixing sheet 443 outward and the fixing sheet 443 gets closer to the locking component 444), realizing the position fixing of the top tether 410. When it is necessary to adjust the length of the top tether 410, press the button 442 to separate the fixing sheet 443 from the locking component 444, the top tether 410 is released, and its length can be adjusted.

[0255] When using the bidirectional adjuster 440, two top tethers 410 passing through the bidirectional adjuster 440 enter the top lever 30 respectively and are connected to the tether fixing part 450, thereby realizing a tether assembly 40 for adjusting the length along different directions.

[0256] Referring to FIGS. 56 to 58, the child seat 200 of the present invention includes a seat 201 and a support structure 100 of the child seat. The support structure 100 of the child seat includes a base 1a, a top lever 2, and a top tether 3. The base 1a is provided with a mounting position for attaching the seat 201. The top lever 2 is fixed to the base 1a and is located on one side of the mounting position. One end of the top tether 3 is fixed to the top lever 2, and the seat 201 is attached to the mounting position. When the seat 201 is attached to the mounting position in the forward direction, the top lever 2 is located behind the seat 201. After the child seat 200 is attached to the vehicle seat, that is, after the base 1a and the top tether 3 are respectively connected to the corresponding positions of the vehicle seat, the top lever 2 approaches the vehicle seat. Since the distance between the top lever 2 and the vehicle seat is shorter than the distance between the seat 201 and the vehicle seat, the length of the top tether 3 fixed to the top lever 2 connected to the corresponding position of the vehicle seat is smaller than the length required for fixing the top tether 3 of the seat 201 conventionally, reducing the use length of the top tether 3. When the seat 201 is attached to the mounting position in the reverse direction, the mounting position of the base 1a remains unchanged, and the seat 201 is attached in the direction of the seat 201. At this time, the top lever 2 and the top tether 3 are located in front of the seat 201. The mounting path of the top tether 3 connected to the corresponding position of the vehicle seat is the same as the mounting path of the top tether 3 when the seat 201 is attached to the mounting position in the forward direction. Compared with the top tether 3 fixed to the seat 201 conventionally, the mounting path of the top tether 3 connected to the corresponding position of the vehicle seat does not interfere with the passengers on the seat 201.

[0257] Referring to FIGS. 58 to 59, in this embodiment, the top lever 2 includes a support tube portion 21 and a rail portion 22. The support tube portion 21 has a hollow structure. The support tube portion 21 is fixed to the base 1a. The rail portion 22 is attached to the support tube portion 21. One through hole 221a is provided in the rail portion 22. The through hole 221a communicates with the inside of the support tube portion 21. One end of the top tether 3 passes through the through hole 221a and is fixed to the inner wall of the support tube portion 21. It is not limited to this. For example, the top tether 3 is directly provided on the surface of the rail portion 22, or the top tether 3 is connected inside the support tube portion 21. Specifically, the number of support tube portions 21 is two. The two support tube portions 21 are fixed to the base 1a at intervals. The rail portion 22 is fixed to the two support tube portions 21. Two through holes 221a are provided in the rail portion 22. The two through holes 221a respectively communicate with the inside of the two support tube portions 21. The top tether 3 has a fixing portion 31 and an attachment portion 32 formed by the intersection of the two fixing portions 31. The two fixing portions 31 respectively pass through the two through holes 221a. The two fixing portions 31 are respectively fixed inside the two support tube portions 21. The attachment portion 32 is connected to the vehicle seat. The number of the support tube portion 21 of the top lever 2 and the fixing portion 31 of the top tether 3 is not limited to this. The support tube portion 21 may be one or three, and the number of the fixing portions 31 of the top tether 3 may be one or three.

[0258] Referring to FIG. 59, the child seat 200 includes a first connecting component 4. The first connecting component 4 is provided through the support pipe portion 21. A webbing loop 311 is provided at one end of the top tether 3. The webbing loop 311 is externally fitted to the first connecting component 4. Here, the first connecting component 4 may utilize bolts or the like. The method by which the top tether 3 is fixed to the support pipe portion 21 is not limited to this. For example, the top tether 3 is directly fixed to the support pipe portion 21 with a rivet. Also, for example, one end of the top tether 3 is engaged and connected to the support pipe portion 21. In this embodiment, the child seat 200 further includes a second connecting component 5. A first connecting hole 222 is provided in the rail portion 22, and a second connecting hole 211 is provided in the support pipe portion 21. The second connecting component 5 passes through the first connecting hole 222 and the second connecting hole 211 to fix the rail portion 22 to the support pipe portion 21. By providing the second connecting component 5, the production and installation of the top lever 2 are facilitated, and the removal and replacement of the support pipe portion 21 and the rail portion 22 are facilitated. Here, the second connecting component 5 may utilize bolts or the like.

[0259] Referring to FIG. 57, in order to store the top tether 3, a first fixing component (not shown) is provided at the other end of the top tether 3. On the base 1a, a storage position 11 for storing the top tether 3 is provided, and the first fixing component is detachably connected to the storage position 11. Specifically, the storage position 11 forms an internal concave structure, and a storage groove for storing the top tether 3 is formed. On the base 1a, a second fixing component (not shown) located at the storage position 11 is provided, and the first fixing component is detachably connected to the second fixing component. One of the first fixing component and the second fixing component has a male stopper structure, and the other of the first fixing component and the second fixing component has a female stopper structure. In this embodiment, the first fixing component has a male stopper structure and the second fixing component has a female stopper structure, but it is not limited to this. Here, the connection between the first fixing component and the second fixing component may adopt a conventional Velcro (registered trademark) or buttons or the like.

[0260] Referring to FIGS. 60 to 62, in this embodiment, the base 1a includes the case 12 and the bracket 13. The bracket 13 is provided inside the case 12. The top lever 2 passes through the case 12 and is fixedly connected to the bracket 13. The child seat 200 includes a reinforcing sheet 6 for strengthening the strength of the top lever 2. The reinforcing sheet 6 is fixedly connected to the base 1a and the top lever 2 respectively. Here, the bracket 13 of the base 1a may extend upward to form the reinforcing sheet 6, and the reinforcing sheet 6 protrudes from the case 12 and is connected to the support pipe portion 21 of the top lever 2. The structure of the reinforcing sheet 6 is not limited to this. The reinforcing sheet 6 may be an independent component, and the reinforcing sheet 6 is connected to the base 1a and the top lever 2 respectively. By providing the reinforcing sheet 6, the strength of the top lever 2 is improved, and it is avoided that the top lever 2 is cut due to too much force applied thereto. In this embodiment, the reinforcing sheet 6 is provided along the length direction of the support pipe portion 21 of the top lever 2. The bottom of the reinforcing sheet 6 is fixed to the base 1a, and the side wall of the reinforcing sheet 6 is fixedly connected to the top lever 2. In other embodiments, the lower part of the top lever 2 is thicker than the upper part of the top lever 2, that is, the support pipe portion 21 of the top lever 2 is configured such that the upper part is weak and the lower part is strong. By setting a specific radian along the direction of the force for the support pipe portion 21 of the top lever 2, the strength of the top lever 2 can be improved.

[0261] As described above, the child seat 200 of the present invention has a support structure 100 for the child seat, fixes one top lever 2 to the base 1a, provides the top lever 2 on one side of the attachment position for attaching the seat 201, and fixes one end of the top tether 3 to the top lever 2. When the seat 201 is attached to the attachment position in the forward direction, the top lever 2 is located behind the seat 201. After the child seat 200 is attached to the vehicle seat, the distance between the top lever 2 and the vehicle seat is shorter than the distance between the seat 201 and the vehicle seat. Therefore, the length required for the top tether 3 fixed to the top lever 2 to be connected to the corresponding position of the vehicle seat is smaller than the length required for the top tether 3 for fixing the seat 201 conventionally, reducing the use length of the top tether 3 and the material cost of the top tether 3. When the seat 201 is attached to the attachment position in the reverse direction, the attachment position of the base 1a does not change, and the seat 201 is attached in the reverse direction. At this time, the top lever 2 and the top tether 3 are located in front of the seat 201, and the attachment path for the top tether 3 to be connected to the corresponding position of the vehicle seat is the same as the attachment path of the top tether 3 when the seat 201 is attached to the attachment position in the forward direction. Compared with the top tether 3 fixed to the seat 201 conventionally, the attachment path for the top tether 3 to be connected to the corresponding position of the vehicle seat does not interfere with the passengers on the seat 201, improving the riding comfort and comfort of the passengers on the seat 201 and avoiding the passengers of the child seat 200 from crying and making a noise.

[0262] Other embodiments of the present invention will be readily apparent to those skilled in the art in view of the specification and implementation of the present invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention, including general knowledge or techniques in the technical fields not disclosed by the present invention, in accordance with the general principles of the present disclosure. The specification and examples should be regarded as illustrative only, and the true scope and spirit of the present invention are indicated by the claims of the present invention. The present invention has been described with reference to an enumeration of exemplary embodiments, but the terms used are for explanation and illustration, not limitation. Since the present invention can be implemented in various forms without departing from the spirit and essence of the present invention, it should be understood that the above embodiments are not limited to any of the foregoing details and should be construed in the broadest sense. Therefore, all changes or equivalents within the scope of the claims should be subject to the claims. [Additional Item 1] A child seat attached to a vehicle seat, a base (10) including an anchor portion (110) connected to the vehicle seat, a seat (20) connected to the base, a top lever (30) fixed to the rear portion of the base, a tether assembly (40) including a top tether (410) and a tether fixing portion (450) connected to each other, the top tether being connected to the top lever, and the tether fixing portion (450) being connected to the vehicle seat, and an alarm device (50) including a switch (520) that can trigger the switch when the top tether is pulled. A child seat characterized by the above. [Additional Item 2] The alarm device gives an alarm when the top tether is pulled and the anchor portion is not fixed at a predetermined position, or when the top tether is not pulled and the anchor portion is fixed at a predetermined position, and is configured not to give an alarm when the top tether is pulled and the anchor portion is fixed at a predetermined position, or when the top tether is not pulled and the anchor portion is not fixed at a predetermined position. The child seat according to Additional Item 1, characterized by the above. [Additional Item 3] The alarm device includes a main body portion (510) and an alarm (530), The main body (510) determines whether to issue an alarm based on the triggering of the switch. The switch (520) is electrically connected to the main body and can provide a signal to the main body. The main body determines whether to issue an alarm based on the signal. When the main body determines to issue an alarm, the alarm device (530) executes the alarm. The child seat according to claim 1, characterized in that. [Claim 4] The child seat further includes a driving component (60). The driving component (60) includes at least one trigger part (620) and at least one connection part (610) connected to the top tether. The connection part is connected to the trigger part, and the trigger part can trigger at least one switch. The child seat according to claim 3, characterized in that. [Claim 5] The connection part is provided inside the top lever and is restricted to move within a certain distance range, and the trigger part is provided on the base. The child seat according to claim 4, characterized in that. [Claim 6] The connection part includes a fixed part and a moving part. A through hole is formed in the moving part. The fixed part passes through the through hole and both ends of the fixed part are fixed to the top lever. The through hole permits the moving part to move relative to the fixed part within a certain distance range. The child seat according to claim 5, characterized in that. [Claim 7] An opening (330) is provided at the upper part of the top lever. The top tether passes through the opening and a part of it is provided inside the top lever. The top lever includes two vertical queues (310) and one rail (320a), the two vertical queues (310) are symmetrically erected at the rear of the base, the rail (320a) is connected to the upper parts of the two vertical queues, the openings are provided at the upper parts of the two vertical queues respectively, and two top tethers pass through the openings of the two vertical queues respectively and a part of each of them is provided inside the top lever. The driving component includes two connection parts, and the two top tethers are respectively connected to the two connection parts. The child seat according to claim 4, characterized in that. [Claim 8] The connection part is connected to the trigger part through an interlocking component. The trigger part is restricted to be movable within a certain distance range and includes an elastic recovery component. The elastic recovery component is configured to apply a force such that each trigger part does not trigger the corresponding switch. The trigger part responds to the pulling of the top tether, contacts the corresponding switch and triggers it. The child seat according to claim 4, characterized in that. [Claim 9] The top lever includes a vertical queue (310) and a rail (320a), the vertical queue (310) is erected at the rear of the base, the rail (320a) is connected to the top end of the vertical queue, an opening is provided on the upper surface of the rail, and a receiving part (340) is provided on the lower surface of the rail. The switch is provided in the receiving part, and one end of the top tether is fixed to the receiving part. When the top tether is pulled, pressure is applied to the switch to trigger it, so that the switch provides a signal to the main body part. The child seat according to claim 4, characterized in that. [Claim 10] The top tether wraps around the top lever and the trigger part, and when the top tether is pulled, it applies pressure to the trigger part, causing the trigger part to move inside the top lever to trigger the switch. The child seat according to claim 9, characterized in that. [Claim 11] The child seat further includes a plurality of trigger parts. The plurality of trigger parts respectively trigger the corresponding switches, and the corresponding switches provide signals to the main body part. One end of the top tether is connected to one of the plurality of trigger parts. The top lever includes a vertical queue (310) and a housing part (340). The vertical queue (310) stands upright at the center of the rear part of the base, and the housing part (340) is provided along the horizontal direction at the top end of the vertical queue. An opening is provided at the center of the upper surface of the housing part, and the one end of the top tether is located in the housing part. The child seat according to claim 3, characterized in that. [Claim 12] The horizontal length of the housing part is larger than the horizontal length of the vertical queue. A stopper (460) is provided at the one end of the top tether, and the stopper cannot pass through the opening. The internal space of the housing part is configured to allow the one end of the top tether to move a certain distance in the vertical direction. One of the trigger parts is formed on the seat body, connected to the one end of the top tether through an interlocking part, and has a longitudinally shaped through hole. The child seat according to claim 11, characterized in that. [Claim 13] A base (10) provided with an anchor part (110), A seat (20) connected to the base, Including a lever part (350) and a housing part (340), the lever part is provided at the rear part of the base, and the housing part is provided on the lever part, a top lever (30); Including a top tether (410) and a tether fixing part (450), the top tether is provided on the upper part of the lever part, a tether assembly (40); A child seat characterized by the above. [Appended Claim 14] The top tether is externally fitted on the upper part of the lever part, and the housing part limits the movement range of the top tether on the lever part; One end of the top tether is provided in the internal space of the housing part and is provided with a trigger part, at least one switch is further provided in the internal space of the housing part, and when the top tether is pulled, the trigger part triggers at least one of the switches; The child seat according to appended claim 13, characterized by the above. [Appended Claim 15] A through hole (351) is formed in the upper part of the lever part; One end of the top tether passes through the through hole and is provided in the internal space of the housing part and is provided with a trigger part, a switch is provided in the internal space of the housing part, and the trigger part triggers the switch by pulling the top tether; The child seat according to appended claim 13, characterized by the above. [Appended Claim 16] A flexible part (341) is provided in the housing part, and the flexible part is provided inside the through hole to avoid direct contact between the top tether and the inside of the through hole; The child seat according to appended claim 15, characterized by the above. [Appended Claim 17] A child seat including an alarm device (50), The alarm device provides an alarm mechanism for safe installation of the child seat; The alarm device includes a plurality of switches (520), a main body part (510), and an alarm (530); A plurality of said switches (520) can be opened and closed, said main body part (510) determines whether to give an alarm based on the opening and closing of the plurality of said switches, when said main body part determines to give an alarm, said alarm device (530) executes said alarm A child seat characterized by the above. [Additional item 18] The child seat further includes a base (10), a top lever (30), and a tether assembly (40), an anchor part (110) protruding rearward is provided on said base (10), and said anchor part includes two anchor arms (111), said top lever (30) is fixed to the rear part of said base, a part of said tether assembly (40) is provided inside said top lever, The plurality of said switches include two switches closed when the two said anchor arms are fixed at a predetermined position, and a switch closed by the tension of said tether assembly. The child seat according to additional item 17, characterized by the above. [Additional item 19] The child seat includes a base (10), a top lever (30), and a tether assembly (40), an anchor part (110) protruding rearward is provided on said base (10), and said anchor part includes two anchor arms (111), said top lever (30) is fixed to the rear part of said base, said tether assembly (40) includes one or two top tethers (410), and a part of each of the two top tethers is provided inside said top lever, The plurality of said switches include two switches closed when the two said anchor arms are fixed at a predetermined position, and two switches closed by the pulling of one or two said top tethers. The child seat according to additional item 17, characterized by the above. [Additional item 20] The child seat includes a trigger part (620), and the trigger part is configured to protrude downward from below the upper part of the top lever. When the top tether is wound around the trigger part, when the top tether is pulled, the top tether applies pressure to the trigger part, and further, the trigger part moves upward to trigger one of the plurality of switches. The child seat according to claim 18 or 19, characterized in that. [Claim 21] The top lever further includes a cover plate (360), the cover plate is externally fitted to the upper part of the top lever, and has an opening through which the top tether extends and protrudes. A groove for the trigger part to move is formed in the cover plate, an elastic recovery component is connected between the cover plate and the trigger part to apply a tensile force, at least a part of one of the switches is provided in the groove, and when the trigger part moves in the groove, one of the switches is triggered. The child seat according to claim 20, characterized in that. [Claim 22] One end of the top tether is fixed to the rear side of the upper part of the top lever, and extends away from the upper part through the lower side, front side and upper side of the top lever. The child seat according to claim 20, characterized in that. [Claim 23] A base (10), A seat (20) rotatably connected to the base, including a backrest (230), and a reinforcing tube (231) is formed at the top end of the backrest. A tether assembly (40) including a top tether (410) and a tether fixing part connected to each other, and the top tether is connected to the lower end of the backrest. The seat has a reinforcing structure for joining with the base. The child seat, characterized in that. [Claim 24] The base and the seat include corresponding ring portions (120, 220), the base is connected to the seat such that the seat can rotate relative to the base, and a base reinforcement part (121) and a seat reinforcement part (221) that can be connected to each other are respectively provided on the ring portions of the base and the seat to strengthen the connection force between the seat and the base. The child seat according to claim 23, characterized in that. [Claim 25] The base has a plurality of base reinforcement parts, the seat has a plurality of seat reinforcement parts, the plurality of base reinforcement parts are circumferentially uniformly provided on the circumference of the ring portion of the base, the plurality of seat reinforcement parts are respectively provided at positions corresponding to the plurality of base reinforcement parts, and the plurality of base reinforcement parts have different lengths. The child seat according to claim 24, characterized in that. [Claim 26] Spacer rings (2311) are respectively formed on both sides of the reinforcing tube, and the top tether extends upward along the backrest and passes through the spacer rings. The child seat according to claim 23, characterized in that. [Claim 27] A tether assembly (40) for fixing a child seat to a vehicle, A regulator (430) for adjusting the length of the tether assembly, A tether fixing part (450) fixed to a corresponding fixing part of the vehicle, including at least two straps, and a top tether (410) connected to the child seat and the tether fixing part via the regulator, at least one strap of the top tether passes through the regulator to form at least two free ends (4111). The tether assembly, characterized in that. [Claim 28] The child seat includes a base (10), a seat (20) provided on the base, and a top lever (30) erected at the rear of the base. The tether assembly according to claim 27, characterized in that. [Claim 29] The regulator is a one-way regulator, the top tether includes three bands, one end of the first band and the second band of the three bands is fixed to both sides of the child seat respectively, and the other ends of the first band and the second band of the three bands are connected to both ends of the third band of the three bands respectively through two one-way regulators, the tether fixing part is fixed or slidably connected to any one of the three bands, and the top tether forms two free ends (4111) with the two one-way regulators. The tether assembly according to claim 27, characterized in that. [Claim 30] The regulator is a two-way regulator or a one-way regulator, and at least two of the free ends are formed by the top tether passing through a two-way regulator or a one-way regulator. The tether assembly according to claim 27, characterized in that. [Claim 31] The top tether includes three bands, one end of the first band and the second band of the three bands is fixed to both sides of the child seat respectively, and the other ends of the first band and the second band of the three bands are connected to one end of the third band of the three bands through a connecting component (460). The tether assembly according to claim 30, characterized in that. [Claim 32] The top tether further includes a fourth band, the third band and the fourth band are connected to the fourth band through two one-way regulators or one two-way regulator, and the tether fixing part is fixed or slidably connected to the fourth band. The tether assembly according to claim 31, characterized in that. [Claim 33] The top tether includes three straps, both ends of a first one of the three straps being fixed to both sides of the child seat respectively, one end of a second one of the three straps being fixed or slidably connected to the first strap, one end of a third one of the three straps being connected to the other end of the second strap via two one-way adjusters or one two-way adjuster, and the tether fixing part being fixed or slidably connected to the other end of the third strap The tether assembly according to claim 30, characterized in that. [Claim 34] The top tether includes two straps, one ends of the two straps being fixed to both sides of the child seat respectively, the other ends of the two straps being connected to the adjuster respectively, the tether fixing part being fixed or slidably connected to any one of the two straps, the adjuster being a two-way adjuster, and the two-way adjuster being capable of adjusting the length of the tether assembly along two opposite directions The tether assembly according to claim 27, characterized in that. [Claim 35] The top tether includes two straps, one end of a first one of the two straps being fixed to the child seat, the other end of the first strap being connected to one end of a second one of the two straps via two one-way adjusters or one two-way adjuster, and the tether fixing part being fixed or slidably connected to the other end of the second strap The tether assembly according to claim 30, characterized in that. [Claim 36] The two one-way adjusters are positioned along opposite directions, and a connection strap connects between the two one-way adjusters The tether assembly according to any one of claims 32 to 35, characterized in that. [Claim 37] A base (10) provided with an anchor part (110) that projects laterally, A seat (20) connected to the base, A top lever (30) fixed to the rear part of the base, The tether assembly according to appended claim 27, wherein a top tether is fixed to the top lever, and A child seat characterized by the above. [Appended claim 38] A tether assembly (40) for fixing a child seat to a vehicle, comprising A bidirectional adjuster capable of adjusting the length of the tether assembly along two opposite directions, A tether fixing part (450) fixed to a corresponding fixing part of the vehicle, A top tether (410) including two or more bands separated from each other, connecting the bidirectional adjuster to the child seat, and connecting the bidirectional adjuster to the tether fixing part. A tether assembly characterized by the above. [Appended claim 39] The bidirectional adjuster includes an adjuster case, two buttons, a fixing sheet, and two locking parts, The adjuster case has two first openings facing in opposite directions, The two buttons are respectively provided in the two first openings and can move along the advancing direction of the adjuster case, The fixing sheet is fixed to the bottom of the adjuster case and has two second openings, The two locking parts are provided inside the adjuster case and move together with the two buttons to form a locking position and a release position. The tether assembly according to appended claim 38, characterized by the above. [Appended claim 40] The two bands enter the adjuster case through the two second openings, pass through the gap between the two locking parts and the fixing sheet, and extend out of the adjuster case, thereby forming two free ends extending along opposite directions. At the locking position, the two locking parts and the fixing sheet clamp the two bands respectively, and at the release position, the two locking parts and the fixing sheet allow the movement of the two bands. The tether assembly according to appended claim 39, characterized in that... [Appended claim 41] On the upper surface of the regulator case, two tension indication windows are formed for indicating whether the two bands are pulled. The tether assembly according to appended claim 39, characterized in that... [Appended claim 42] A support structure for a child seat including a base, a top lever, and a top tether, wherein an attachment position for attaching a seat to the base is provided, the top lever is fixed to the base and is located on one side of the attachment position, and one end of the top tether is fixed to the top lever. The support structure for a child seat, characterized in that... [Appended claim 43] The top lever includes a support tube portion and a rail portion, the support tube portion is fixed to the base, and the rail portion is attached to the support tube portion. The support structure for a child seat according to appended claim 42, characterized in that... [Appended claim 44] The support tube portion has a hollow structure, a through hole is provided in the rail portion, the through hole communicates with the inside of the support tube portion, and one end of the top tether passes through the through hole and is fixed to the inner wall of the support tube portion. The support structure for a child seat according to appended claim 43, characterized in that... [Appended claim 45] Further including a first connecting component, the first connecting component is provided passing through the support tube portion, a webbing loop is provided at one end of the top tether, and the webbing loop is externally fitted to the first connecting component. The support structure for a child seat according to appended claim 44, characterized in that... [Appended claim 46] A first fixing component is provided at the other end of the top tether, a storage position for storing the top tether is provided on the base, and the first fixing component is detachably connected to the storage position. The support structure for a child seat according to appended claim 42, characterized in that... [Additional item 47] A second fixing part located at the storage position is provided on the base, and the first fixing part is detachably connected to the second fixing part. The support structure of the child seat according to claim 46, characterized in that. [Additional item 48] The storage position forms an internal concave structure. The support structure of the child seat according to claim 46, characterized in that.

Explanation of reference numerals

[0263] Child seat 1, 200 Base 10, 1a Anchor part 110 Anchor arm 111 Ring part 120 Base reinforcement part 121 Storage position 11 Case 12 Bracket 13 Seat 20, 201 Ring part 220 Seat reinforcement part 221 Backrest 230 Reinforcement pipe 231 Spacer ring 2311 Top lever 30, 2 Vertical queue 310 Rail 320 Fixing part 320a Opening 330 Storage part 340 Flexible part 341 Lever part 350 Through hole 351 Mounting groove 352 Cover plate 360 Support pipe part 21 Second connection hole 211 Rail part 22 Through hole 221 First connection hole 222 Tether assembly 40 Top tether 410 Adjustment band 411 First adjustment band 411a Second adjustment band 411b Free end 4111 Connection band 412 First connection band 412a Second connection band 412b Regulator 430 First regulator 430a Second regulator 430b Tether fixing part 450 Case 431 Button (adjustment end) 432 Bidirectional regulator 440 Regulator case 441 Button 442 Fixed sheet 443 Locking part 444 Tension indication window 445 Tether fixing part 450 Connection part 460 Alarm device 50 Main body part 510 Switch 520 Alarm 530 Drive part 60 Connection part 610 Trigger parts 620, 620a Interlocking part 630 Elastic recovery part 640 Support structure of child seat 100 Top tether 3 Fixing part 31 Webbing loop 311 Mounting part 32 First connection part 4 Second connection part 5 Reinforcing sheet 6

Claims

1. A child seat that is attached to a vehicle seat, A base (10); A seat (20) connected to the base (10); A top lever (30) fixed to a rear part of the base (10); A first trigger portion (620) provided on the top lever (30) and movable relative to the top lever (30); A tether assembly (40) including a top tether (410) and a tether fixing portion (450) connected to each other, the top tether (410) being connected to the top lever (30) and capable of driving the first trigger portion (620) to move relative to the top lever (30), the tether fixing portion (450) being connected to the vehicle seat; An alarm device (50) including a first switch (520), in which, when the top tether (410) is pulled, the top tether (410) drives the first trigger portion (620) to move relative to the top lever (30), so that the first trigger portion (620) triggers the first switch (520); Including, The top lever (30) includes a lever part (350), the first trigger portion (620) protrudes from the lever part (350) and is movable relative to the lever part (350), the top tether (410) wraps around the lever part (350) and the first trigger portion (620), and the first switch (520) is located inside the lever part (350), and when the top tether (410) is pulled, the top tether (410) applies pressure to the first trigger portion (620), driving the first trigger portion (620) to move inside the lever part (350) and trigger the first switch.

2. The child seat of claim 1, characterized in that one end of the top tether (410) is fixed to the rear side of the lever part (350) and extends through the underside, front side and upper side of the lever part (350).

3. 3. The child seat according to claim 2, wherein the first trigger portion (620) protrudes from a lower side of the lever part (350).

4. The child seat of claim 1, characterized in that the top tether (410) wraps around the upper part of the lever part (350), then wraps around the front and lower parts of the lever part (350), and then wraps again around the upper part of the lever part (350).

5. The child seat according to any one of claims 1 to 4, characterized in that the lever part (350) is in an inverted U-shape, and the top tether (410) is wrapped around the horizontal lever at the top of the lever part (350) and the first trigger portion (620) protruding from the lever part (350).

6. The child seat of claim 1, characterized in that the top lever (30) includes a cover plate (360) that is fitted to the outside of the lever part (350) and covers the first trigger portion (620) and a portion of the top tether (410) that wraps around the top lever (30), and the cover plate (360) has an opening through which the top lever (30) extends from the cover plate (360), and a gap between the cover plate (360) and the lever part (350) allows the top tether (410) to advance along the opening of the cover plate (360).

7. 2. The child seat of claim 1, wherein the first trigger portion (620) moves inside the lever part (350) along a first direction and triggers the first switch (520) along a second direction intersecting the first direction.

8. The child seat of claim 7, characterized in that the first trigger portion (620) has a main body portion and two extending portions protruding from the main body portion along the first direction, the lever part (350) has two position limiting parts that enter into the two extending portions in a one-to-one correspondence, and when the first trigger portion (620) triggers the first switch (520), the first switch (520) is located between the two extending portions, and one of the extending portions triggers the first switch (520) along the second direction.

9. The child seat of claim 1, characterized in that the top lever (30) includes a lever part (350), the first trigger part (620) is movable relative to the lever part (350), and an elastic recovery part is provided between the first trigger part (620) and the lever part (350), and the elastic recovery part causes the first trigger part (620) to protrude from the lever part (350) for actuation by the top tether (410).

10. The child seat of claim 1, characterized in that the top lever (30) includes a lever part (350), the first trigger portion (620) is movable relative to the lever part (350), a position limiting part is provided on the lever part (350), a groove or a through hole is provided in the first trigger portion (620), and the position limiting part moves within the groove or the through hole to limit the range of movement of the first trigger portion (620).

11. at least one second trigger portion and at least one second switch; The child seat of claim 1, characterized in that the base (10) has an anchor portion (110) connected to the vehicle seat, the anchor portion (110) includes two anchor arms (111), at least one of the second trigger portions and at least one of the second switches are provided together on the same anchor arm (111), the second trigger portion is movable relative to the base (10), and when the anchor arm (111) on which the second trigger portion and the second switch are provided is fixed in a predetermined position, the second trigger portion is driven to move relative to the base (10) so that the second trigger portion triggers the second switch.

12. The base (10) has an anchor portion (110) connected to the vehicle seat, The alarm device (50) If the top tether (410) is pulled and the anchor portion (110) is not fixed in a predetermined position, or if the top tether (410) is not pulled and the anchor portion (110) is fixed in a predetermined position, an alarm is issued; The child seat of claim 1, characterized in that it is configured not to sound an alarm when the top tether (410) is pulled and the anchor portion (110) is fixed in a predetermined position, or when the top tether (410) is not pulled and the anchor portion (110) is not fixed in a predetermined position.

13. The alarm device (50) includes a main body (510) and an alarm (530), The main body (510) determines whether to issue an alarm based on the first switch (520) being triggered; The first switch (520) is electrically connected to the main body (510) and can provide a signal to the main body (510); The main unit (510) determines whether to issue an alarm based on the signal; 2. The child seat according to claim 1, wherein the alarm (530) issues an alarm when the main body (510) determines to issue an alarm.

14. Further comprising a regulator (430); The top lever (30) includes a lever part (350), The top tether (410) includes an adjustable strap (411) and a connecting strap (412), the connecting strap (412) is connected to the lever part (350) and the adjuster (430), and the adjustable strap (411) is connected to the tether fixing part (450) and the adjuster (430); The child seat of claim 1, characterized in that the adjuster (430) locks or releases the adjustable strap (411) passing through the adjuster (430), and when the adjuster (430) releases the adjustable strap (411), the length of the adjustable strap (411) is adjustable.

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