CN115009121B - Two-stage force limiting device and child safety seat - Google Patents
Two-stage force limiting device and child safety seat Download PDFInfo
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- CN115009121B CN115009121B CN202210597917.9A CN202210597917A CN115009121B CN 115009121 B CN115009121 B CN 115009121B CN 202210597917 A CN202210597917 A CN 202210597917A CN 115009121 B CN115009121 B CN 115009121B
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- 230000033001 locomotion Effects 0.000 claims description 10
- 230000010365 information processing Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 7
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2803—Adaptations for seat belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2884—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle with protection systems against abnormal g-forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
- B60N2/2803—Adaptations for seat belts
- B60N2002/2815—Adaptations for seat belts with additional belt accessories, e.g. a belt tension detector
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a secondary force limiting device and a child safety seat, and relates to the field of safety seats, wherein the secondary force limiting device is arranged in a seat body to realize a secondary consumption function of instantaneous pulling force of a safety belt, after collision occurs, the damage degree of the secondary force limiting device to a child can be obviously reduced after the secondary force limiting device acts, and finally the device can be manually adjusted to be recycled after the initial setting is restored; meanwhile, the safety seat can automatically adjust the force limiting level according to the weight of the child, is safe and reliable, and has great popularization value.
Description
Technical Field
The invention relates to the field of safety seats, in particular to a secondary force limiting device and a child safety seat.
Background
With the development of automobile technology, child safety has been gaining more and more attention, and child seats are being used in automobiles in large numbers.
The common child seat in the market uses the safety belt that simply restrains children's health, and when collision injury comes temporary children's body instantaneous anteverted, the shoulder area will produce too big pulling force to children's shoulder, probably causes children's passenger injury.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a force limiting device arranged in a child safety seat, and the force limiting device is used for gradually reducing the generated instant pulling force so as to achieve the aim of reducing the damage to children.
The specific scheme provided by the invention is as follows:
a secondary force limiting device, comprising
A support frame; the support frame is of a U-shaped structure and is provided with a left side support plate and a right side support plate;
the two movable plates are arranged in parallel at intervals, correspond to the left side support plate and the right side support plate one by one and are elastically connected; the two opposite end surfaces of the movable plate are respectively provided with a first outer convex tooth and a second outer convex tooth, the two first outer convex teeth form a first-stage force limiting part with a first interval space, and the two second outer convex teeth form a second-stage force limiting part with a second interval space; the first interval space is wider than the second interval space, and the first interval space is communicated with the second interval space to form a slideway;
sliding teeth arranged in the slide way; the sliding teeth are configured to be in contact with the first outer convex teeth and the second outer convex teeth at two ends respectively;
when the sliding teeth are subjected to the pulling force and move in the slideway, the sliding teeth pass through the primary force limiting part and the secondary force limiting part in sequence so as to realize the consumption of the pulling force.
Further, the first and second male teeth each have an inclined tooth surface; the sliding teeth are provided with sliding surfaces which are abutted and attached to the tooth surfaces; when the sliding teeth move, the sliding surface jumps from the tooth surface of the first-stage force limiting part to be abutted with the second-stage force limiting part.
Further, a limiting slide bar is arranged between the two movable plates and the corresponding left side support plate and right side support plate, one end of the limiting slide bar is fixed on the movable plate, and the other end of the limiting slide bar penetrates through the left side support plate and the right side support plate; springs are arranged between the movable plate and the left side support plate and between the movable plate and the right side support plate, and the springs are sleeved on the limiting slide bars.
Further, the sliding rack further comprises locking teeth, wherein the locking teeth are respectively fixed on the left side support plate and the right side support plate and are positioned behind the second outer convex teeth, the two locking teeth are provided with locking parts with third spacing spaces, the second spacing spaces are wider than the third spacing spaces, and the sliding teeth cannot continue to move after moving to the locking parts.
Further, the device also comprises a sliding rod; the sliding teeth comprise left half teeth and right half teeth, and the left half teeth and the right half teeth are connected to the sliding rod and are provided with sliding surfaces;
the left half tooth and the right half tooth can perform expansion motion or contraction motion relative to the sliding rod so as to adjust the abutting force with the primary limiting part and the secondary limiting part.
Further, a rotatable positive and negative screw rod is arranged in the sliding rod;
two ends of the positive and negative screw rod are respectively connected with a sliding seat, each sliding seat is connected with two rotatable connecting rods, and the other end of each connecting rod is respectively and movably connected with the left half tooth and the right half tooth;
the rotation of the positive and negative screw rod enables the two sliding seats to approach or depart from each other in opposite directions, and the connecting rod drives the left half tooth and the right half tooth to complete corresponding expansion or contraction movement.
Furthermore, the left half tooth and the right half tooth are both fixed with guide rods, and the other ends of the guide rods are inserted into the sliding rods.
Further, the device also comprises a driving motor, wherein the driving motor is provided with a transmission shaft, and the transmission shaft is connected with the positive and negative screw rod through a gear set so as to drive the positive and negative screw rod to rotate positively or reversely.
For the application range of the secondary force limiting device, we propose a child safety seat, which comprises a seat body, and shoulder straps and pull-down straps arranged in the seat body, wherein the secondary force limiting device is arranged in the seat body.
Further, a weight sensor and an information processing controller are arranged in the seat body;
the weight sensor is configured to collect the weight information of the child sitting and transmit the weight information to the information processing controller;
the information processing controller is configured to process the weight information and convert the weight information into an electric signal to be transmitted to the driving motor, so that the driving motor rotates to adjust the expansion degree of the left half tooth and the right half tooth.
The beneficial effects achieved by adopting the technical scheme are as follows:
according to the scheme, the secondary force limiting device is arranged in the seat body, so that a secondary consumption function of instantaneous pulling force of the safety belt is realized, after collision occurs, the damage degree to children can be obviously reduced after the secondary force limiting device acts, and finally, the device can be manually adjusted and recycled after the initial setting is restored; meanwhile, the safety seat can automatically adjust the force limiting level according to the weight of the child, is safe and reliable, and has great popularization value.
Drawings
Fig. 1 is a schematic structural view of the child safety seat.
Fig. 2 is a schematic structural diagram of a secondary force limiting device.
Wherein: 10 supporting frames, 11 left side supporting plates, 12 right side supporting plates, 20 movable plates, 21 first convex teeth, 22 second convex teeth, 23 locking teeth, 24 limit sliding rods, 25 springs, 30 sliding teeth, 31 left half teeth, 32 right half teeth, 33 sliding rods, 34 positive and negative screw rods, 35 sliding seats, 36 connecting rods, 37 guide rods, 38 driving motors, 39 gear sets, 100 shoulder belts and 200 pull-down belts.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
The embodiment provides a child safety seat, through adopting this child safety seat, can reduce effectively the instantaneous pulling force that the safety belt produced to children when the sudden event produced, can also reduce the injury influence that instantaneous pulling force brought to children when guaranteeing child safety.
In this case, referring to fig. 1 to 2, the child safety seat includes a seat body, shoulder straps 100 provided in the seat body, the shoulder straps 100 being used to fix shoulder positions of the child, and a pull-down strap 200 for tightening. The seat body is internally provided with a secondary force limiting device, and the consumption of instantaneous tension is realized by utilizing the secondary force limiting device.
The specific composition structure of the secondary force limiting device is described in detail below:
in the scheme, the secondary force limiting device comprises a support frame 10, a movable plate 20 and sliding teeth 30; the support frame 10 is of a U-shaped structure and is provided with a left side support plate 11 and a right side support plate 12; the two movable plates 20 are arranged in parallel at intervals, correspond to the left side support plate 11 and the right side support plate 12 one by one and are elastically connected; the two movable plates 20 are provided with the first outer convex teeth 21 and the second outer convex teeth 22 on opposite end surfaces, and because each movable plate 20 is provided with the first outer convex teeth 21 and the second outer convex teeth 22, the number of the first outer convex teeth 21 in the embodiment is two, and the number of the second outer convex teeth 22 is also two; the two first outer convex teeth 21 form a first-stage force limiting part with a first interval space, and the two second outer convex teeth 22 form a second-stage force limiting part with a second interval space; the first interval space is wider than the second interval space, and the first interval space is communicated with the second interval space to form a slideway; the above mentioned sliding teeth 30 are arranged in the slideway; the sliding teeth 30 are configured to be contactable with the first outer teeth 21 and the second outer teeth 22 at both ends, respectively;
when the child collides, the child leans forward, the shoulder strap 100 receives an instant pulling force, the pulling force pulls the sliding teeth 30 to move in the slideway, the instant pulling force is sequentially consumed by the primary force limiting part and the secondary force limiting part, and the child is finally reduced by the shoulder strap 100, so that the child is effectively prevented from being hurt by the instant pulling force.
Optionally, the first outer teeth 21 and the second outer teeth 22 each have inclined tooth surfaces; and a sliding surface abutting against the tooth surface is provided on the sliding tooth 30; the sliding surface is always in contact with the tooth surface, so that when the sliding tooth 30 moves, the sliding surface is more stably and smoothly jumped from the tooth surface of the first-stage force limiting part to be in contact with the second-stage force limiting part, and the balance of force transmission is improved.
In this scheme, the elastic connection between the two movable plates 20 and the left side support plate 11 and the right side support plate 12 is realized by springs. Specifically, a limiting slide bar 24 is arranged between the two movable plates 20 and the corresponding left side support plate 11 and right side support plate 12, one end of the limiting slide bar 24 is fixed on the movable plate 20, and the other end of the limiting slide bar is penetrated through the left side support plate 11 and the right side support plate 12; the spring 25 is arranged between the movable plate 20 and the left and right side support plates, and the spring 25 is sleeved on the limit sliding rod 24. Therefore, the movable plate 20 is elastically connected with the corresponding left side support plate 11 and right side support plate 12 through the springs 25, and the controllable buffering movable range is provided, so that the sliding teeth 30 can conveniently move in the first-stage force limiting part and the second-stage force limiting part.
Optionally, the sliding rack further comprises locking teeth 23, wherein the locking teeth 23 are respectively fixed on the left side support plate 11 and the right side support plate 12 and are positioned behind the second outer convex teeth 22, the two locking teeth 23 form a locking part with a third interval space, the second interval space is wider than the third interval space, and the sliding teeth 30 cannot move continuously after moving to the locking part.
It will be appreciated that the detent provided here is the end point of the movement of the tooth 30, with which the tooth 30 is ensured not to disengage from the slideway.
The above arrangement of the primary force limiting portion, the secondary force limiting portion, and the locking portion is the optimal arrangement of the present embodiment, but in a specific design, n (n. Gtoreq.2) stage force limiting portions may be provided between the left side support plate 11 and the right side support plate 12. The consumption of the pulling force is realized through the layer-by-layer force limiting parts, and the pulling force can be stably and directly dissipated.
Also in other embodiments, the structures of the first outer convex tooth 21, the second outer convex tooth 22, the third outer convex tooth and the fourth outer convex tooth … …, namely, the nth outer convex tooth, can be replaced by a slide block with an inclined surface, namely, a left slide block is fixed on the left side support plate 11, a right slide block is fixed on the right side support plate 12, the left slide block and the right slide block are arranged at intervals, and because of the inclined surface, the formed channel is wider at the bottom and narrower at the top. In this way, when the sliding teeth 30 collide, the sliding teeth move in the sliding way with the wide bottom and the narrow top, and the pulling force can be more stably and uniformly consumed.
In this embodiment, the sliding rod 33 is further included; sliding teeth 30 comprise left half teeth 31 and right half teeth 32, and left half teeth 31 and right half teeth 32 are connected to sliding rod 33 and have sliding surfaces; the left half tooth 31 and the right half tooth 32 can perform expansion movement or contraction movement relative to the slide rod 33 so as to adjust the abutting force with the primary limiting part and the secondary limiting part.
The main purpose of the adjustment of the contact force between the sliding tooth 30 and the primary force limiting portion and the secondary force limiting portion is to select a proper force limiting amount according to different weights of children, for example, the body weight of the child a is greater than that of the child B, so that if collision occurs, the instantaneous force generated by the child a is greater than that generated by the child B, and thus, only when the sliding tooth 30 is in a proper force limiting range in an initial state, the protection effect can be generated for the child a and the child B respectively.
In order to realize the adjustment of the abutting force, a rotatable positive and negative screw rod 34 is arranged in the sliding rod 33 in the scheme; two ends of the front and back screw rod 34 are respectively connected with a slide seat 35, each slide seat 35 is connected with two rotatable connecting rods 36, and the other end of each connecting rod 36 is respectively and movably connected with the left half tooth 31 and the right half tooth 32; thus, when the forward and reverse screw rod 34 rotates, the two sliding seats 35 are oppositely close to or far away from each other, and the left half tooth 31 and the right half tooth 32 are driven by the connecting rod 36 to complete corresponding transverse expansion or transverse contraction movements.
Optionally, guide rods 37 are fixed on the left half tooth 31 and the right half tooth 32, and the other ends of the guide rods 37 are inserted into the slide rods 33. The guide rod 37 is inserted in the slide rod 33, so that inclination caused by uneven stress when the left half tooth 31 and the right half tooth 32 are ejected is avoided.
In this scheme, still include driving motor 38, driving motor has the transmission shaft, and the transmission shaft passes through gear train 39 and is connected with positive and negative lead screw 34 in order to order about positive and negative lead screw 34 corotation or reversal.
Of course, in order to realize the autonomous measurement and adjustment of the weight of the child by the safety seat, a weight sensor and an information processing controller are arranged in the seat body; the weight sensor is configured to collect the weight information of the child sitting and transmit the weight information to the information processing controller; the information processing controller is configured to process the weight information and convert the weight information into an electrical signal to be transmitted to the driving motor 38, so that the driving motor 38 can rotate to achieve the purpose of adjusting the expansion degree of the left half tooth 31 and the right half tooth 32, that is, the purpose of automatically adjusting the abutting force of the sliding tooth 30 with the primary limiting part and the secondary limiting part according to children with different weights is achieved.
According to the scheme, the secondary force limiting device is arranged in the seat body, so that the consumption function of instantaneous pulling force of the safety belt is realized, after collision occurs, the damage degree of the secondary force limiting device to children can be obviously reduced after the secondary force limiting device acts, and finally, the device can be manually adjusted and recycled after the initial setting is restored; meanwhile, the safety seat can automatically adjust the force limiting level according to the weight of the child, is safe and reliable, and has great popularization value.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (8)
1. A secondary force limiting device, comprising:
a support (10); the support frame (10) is of a U-shaped structure and is provided with a left side support plate (11) and a right side support plate (12); the two movable plates (20) are arranged in parallel at intervals, and are in one-to-one correspondence with the left side support plate (11) and the right side support plate (12) and are elastically connected; the two opposite end surfaces of the movable plates (20) are respectively provided with a first convex tooth (21) and a second convex tooth (22), the two first convex teeth (21) form a first-stage force limiting part with a first interval space, and the two second convex teeth (22) form a second-stage force limiting part with a second interval space; the first interval space is wider than the second interval space, and the first interval space is communicated with the second interval space to form a slideway;
a sliding tooth (30) arranged in the slideway; the sliding teeth (30) are configured to be in contact with the first outer convex teeth (21) and the second outer convex teeth (22) at both ends, respectively; when the sliding teeth (30) are subjected to pulling force to move in the slideway, the sliding teeth pass through the primary force limiting part and the secondary force limiting part in sequence to realize the consumption of the pulling force;
also comprises a slide bar (33); the sliding teeth (30) comprise left half teeth (31) and right half teeth (32), and the left half teeth (31) and the right half teeth (32) are connected to the sliding rod (33) and are provided with sliding surfaces; the left half tooth (31) and the right half tooth (32) can perform expansion motion or contraction motion relative to the sliding rod (33) so as to adjust the abutting force with the primary limiting part and the secondary limiting part; a rotatable front and back screw rod (34) is arranged in the slide rod (33); two ends of the positive and negative screw rod (34) are respectively connected with a sliding seat (35), each sliding seat (35) is connected with two rotatable connecting rods (36), and the other end of each connecting rod (36) is respectively and movably connected with the left half tooth (31) and the right half tooth (32); the rotation of the positive and negative screw rods (34) enables the two sliding seats (35) to approach oppositely or depart away from the opposite direction, and the connecting rod (36) drives the left half tooth (31) and the right half tooth (32) to complete corresponding expansion or contraction movement.
2. A two-stage force limiting device according to claim 1, characterized in that the first outer teeth (21) and the second outer teeth (22) each have inclined tooth surfaces; the sliding tooth (30) is provided with a sliding surface abutting against the tooth surface; when the sliding teeth (30) move, the sliding surface jumps from the tooth surface of the first-stage force limiting part to be abutted with the second-stage force limiting part.
3. The secondary force limiting device according to claim 2, wherein a limiting slide bar (24) is arranged between the two movable plates (20) and the corresponding left side support plate (11) and right side support plate (12), one end of the limiting slide bar (24) is fixed on the movable plate (20), and the other end of the limiting slide bar is penetrated through the left side support plate (11) and the right side support plate (12); springs (25) are arranged between the movable plate (20) and the left side support plate (11) and between the movable plate and the right side support plate (12), and the springs (25) are sleeved on the limiting slide bars (24).
4. A secondary force limiting device according to claim 3, further comprising locking teeth (23), wherein the locking teeth (23) are respectively fixed on the left side support plate (11) and the right side support plate (12) and are positioned behind the second outer convex teeth (22), two locking teeth (23) form a locking part with a third interval space, the second interval space is wider than the third interval space, and the sliding teeth (30) cannot move continuously after moving to the locking part.
5. A two-stage force limiting device according to claim 1, characterized in that the left half tooth (31) and the right half tooth (32) are both fixed with a guide rod (37), and the other end of the guide rod (37) is inserted into the slide rod (33).
6. A two-stage force limiting device according to claim 1, further comprising a drive motor (38), the drive motor (38) having a drive shaft, the drive shaft being connected to the positive and negative lead screw (34) by a gear set (39) to drive the positive and negative lead screw (34) to rotate in either a positive or a negative direction.
7. A child safety seat comprising a seat body and shoulder straps and pull-down straps disposed in the seat body, wherein the seat body incorporates the secondary force limiting device of claim 6.
8. The child safety seat according to claim 7, wherein the seat body has a weight sensor and an information processing controller built therein; the weight sensor is configured to collect the weight information of the child sitting and transmit the weight information to the information processing controller; the information processing controller is configured to process the weight information and convert it into an electrical signal for transmission to a drive motor (38) such that the drive motor (38) rotates to adjust the extent of expansion of the left and right half-teeth (31, 32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210597917.9A CN115009121B (en) | 2022-05-24 | 2022-05-24 | Two-stage force limiting device and child safety seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210597917.9A CN115009121B (en) | 2022-05-24 | 2022-05-24 | Two-stage force limiting device and child safety seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115009121A CN115009121A (en) | 2022-09-06 |
| CN115009121B true CN115009121B (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210597917.9A Active CN115009121B (en) | 2022-05-24 | 2022-05-24 | Two-stage force limiting device and child safety seat |
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| CN (1) | CN115009121B (en) |
Citations (7)
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|---|---|---|---|---|
| JP2001253316A (en) * | 2000-03-10 | 2001-09-18 | Tokai Rika Co Ltd | Webbing winding device |
| JP2001310666A (en) * | 2000-04-26 | 2001-11-06 | Riiman Kk | Device for fixing seat belt for attaching child seat |
| CN106347180A (en) * | 2016-05-17 | 2017-01-25 | 屈胜旗 | Child safety seat and heat and neck protection system thereof |
| CN208559276U (en) * | 2018-08-02 | 2019-03-01 | 厦门理工学院 | A kind of force-limiting device and the safety belt equipped with force-limiting device |
| CN210019951U (en) * | 2019-03-05 | 2020-02-07 | 山西医科大学第二医院 | Visual elastic bandage tension adjusting and force limiting device |
| CN213322762U (en) * | 2020-09-17 | 2021-06-01 | 河南大学 | But height-adjusting's children safety seat |
| CN213473060U (en) * | 2020-09-29 | 2021-06-18 | 武汉福威特汽车零部件有限公司 | Force-limiting mortise lock |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7343650B2 (en) * | 2003-04-24 | 2008-03-18 | Amsafe Commercial Products, Inc. | Web adjuster and harness for child restraint seat |
-
2022
- 2022-05-24 CN CN202210597917.9A patent/CN115009121B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001253316A (en) * | 2000-03-10 | 2001-09-18 | Tokai Rika Co Ltd | Webbing winding device |
| JP2001310666A (en) * | 2000-04-26 | 2001-11-06 | Riiman Kk | Device for fixing seat belt for attaching child seat |
| CN106347180A (en) * | 2016-05-17 | 2017-01-25 | 屈胜旗 | Child safety seat and heat and neck protection system thereof |
| CN208559276U (en) * | 2018-08-02 | 2019-03-01 | 厦门理工学院 | A kind of force-limiting device and the safety belt equipped with force-limiting device |
| CN210019951U (en) * | 2019-03-05 | 2020-02-07 | 山西医科大学第二医院 | Visual elastic bandage tension adjusting and force limiting device |
| CN213322762U (en) * | 2020-09-17 | 2021-06-01 | 河南大学 | But height-adjusting's children safety seat |
| CN213473060U (en) * | 2020-09-29 | 2021-06-18 | 武汉福威特汽车零部件有限公司 | Force-limiting mortise lock |
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| Publication number | Publication date |
|---|---|
| CN115009121A (en) | 2022-09-06 |
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