US20010045767A1 - Child safety seat - Google Patents
Child safety seat Download PDFInfo
- Publication number
- US20010045767A1 US20010045767A1 US09/847,573 US84757301A US2001045767A1 US 20010045767 A1 US20010045767 A1 US 20010045767A1 US 84757301 A US84757301 A US 84757301A US 2001045767 A1 US2001045767 A1 US 2001045767A1
- Authority
- US
- United States
- Prior art keywords
- seat
- seat back
- child safety
- side walls
- slots
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005452 bending Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Images
Classifications
-
- 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
- B60N2/2875—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle inclinable, as a whole or partially
- B60N2/2878—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle inclinable, as a whole or partially the back-rest being inclinable
-
- 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
- B60N2/2806—Adaptations for seat belts for securing the child seat to the vehicle
-
- 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
- B60N2/2812—Adaptations for seat belts for securing the child to the child seat
-
- 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
- B60N2/2857—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle characterised by the peculiar orientation of the child
- B60N2/286—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle characterised by the peculiar orientation of the child forward facing
Definitions
- This invention relates to a child safety seat of the type comprising a seat body having a seat portion, a seat back and vertically extending side walls projecting forwardly from the side edges of the seat back and upwardly from the side edges of the seat portion at least in the region of the junction between the seat portion and the seat back, the side walls having belt guide openings adjacent to the junction between the seat portion and the seat back for receiving the lap portion of a vehicle seat belt by which the child seat may be secured in place on a vehicle seat, and a harness comprising shoulder straps secured to the seat back.
- a child seat of this type is disclosed in U.S. Pat. No. 3,992,056.
- the openings for receiving the lap belt are in the form of closed apertures through which the belt has to be threaded.
- the shoulder straps of the child harness apply a load to the seat back which tends to bend it forwards relative to the seat portion.
- Such recesses constitute a point of weakness where this bending force is concentrated. Accordingly, it is necessary to reinforce this region of the seat body thus increasing its overall weight. It is an object of the invention to provide a child seat of the type described above in which such reinforcement is unnecessary.
- a respective access slot extends from each belt guide opening to the edge of the corresponding side wall and the seat body is adapted to deform so that the side walls of each access slot come into abutment with one another when a force is applied to the seat back in a direction to bend it towards the seat portion.
- FIG. 1 is a perspective view of a child seat in accordance with the invention held in place by a two-point vehicle seat belt, with its child harness partly broken away;
- FIG. 2 is a side view of the seat shown in FIG. 1, in its normal condition
- FIG. 3 is a perspective view of the child seat shown in FIGS. 1 and 2, but held in place by a three-point vehicle seat belt, with its five-point child harness partly broken away;
- FIG. 4 is a perspective view of corresponding to FIG. 3 but with the child harness complete;
- FIG. 5 is a side view of the set shown in FIG. 4;
- FIG. 6 is a side view, similar to FIG. 2, but showing the result of application of a forward load to the seat back;
- FIG. 7 is a perspective view of the child seat shown in FIG. 4 with a T-shield replacing the five-point child harness;
- FIGS. 8 and 9 are perspective views, corresponding to FIGS. 3 and 4, of a child seat having an alternative routing for the vehicle seat belt;
- FIG. 10 is a side view of another child seat in accordance with the invention, having a removable seat back;
- FIG. 11 is a side view of another child seat similar to the seat shown if FIG. 10 but having a different arrangement for attaching the removable seat back.
- a child safety seat comprises a seat body 10 having a seat portion 12 , side walls 14 and 16 and a seat back 18 .
- each side wall 14 , 16 has a belt guide in the form of an elongate opening 20 with a generally vertical slot 22 extending from the opening 20 to the edge of the corresponding side wall 14 , 16 .
- the lap belt 24 is passed down through the slot 22 into the openings 20 and the buckle 28 fastened. A child occupant of the seat body 10 sits on top of the lap belt 24 .
- FIG. 3 shows the seat body 10 of FIGS. 1 and 2 secured by a three-point vehicle seat belt having a lap strap 24 and a diagonal shoulder strap 26 secured by the buckle 28 .
- the child occupant sits on top of the lap strap 24 with the shoulder belt between his/her back and the seat back 18 .
- the child seat 10 is provided with a harness comprising shoulder straps 30 and 32 secured to the seat back 18 , together with lap straps 34 and 36 and a crutch strap 38 which are secured to the seat portion 12 .
- each shoulder strap lap 30 , 32 will be formed in one piece with the corresponding lap strap 34 , 36 .
- the child harness is secured by a buckle 40 .
- FIG. 7 shows the seat body 10 provided with a so-called T-shield 50 connecting the shoulder straps 30 and 32 to the crutch strap 38 .
- This type of child harness does not have lap straps.
- FIGS. 8 and 9 show a child seat having a seat body 60 similar to the seat body 10 shown in FIGS. 1 to 7 except that its seat back 62 has two openings 64 and 66 adjacent to but separated from the elongate openings 22 in the side walls 14 and 16 .
- the lap strap 24 and the shoulder strap 26 of the vehicle seat belt are threaded through these openings so as to be held in abutment with the seat back 62 .
- Other parts of the seat body 60 and the child harness are denoted by the same reference numerals as the corresponding parts of the seat shown in FIGS. 3 and 4 and will not be described in detail.
- FIG. 10 shows a child seat comprising a base 70 and a detachable seat back 72 .
- the base 70 includes a seat surface 74 and two side walls 76 , each of which has an opening 78 with a vertical slot 80 extending to the top of the corresponding side wall 76 , similar to the openings 20 and slots 22 of FIGS. 1 - 8 .
- the base 70 is secured on a vehicle seat by at least the lap strap of a vehicle seat belt which is located in the openings 78 .
- the seat back 72 has downwardly extending legs 82 projecting on each side of the rear ends of the side walls 76 and having a hole for receiving a bolt 84 by which the seat back 72 is secured to the base 70 .
- Shoulder straps of a child harness (not shown) are secured to the seat back 72 .
- the resulting force is transmitted from the bottom edges 86 of the side walls of the seat back 72 to the top edges 88 of the side walls 76 behind the slots 80 . If the force is sufficient, the slots 80 tend to close up in a similar manner to the slots 22 , as shown in FIG. 6.
- the base 70 can serve as a booster seat.
- FIG. 11 illustrates a variant of the seat shown in FIG. 10 having a base 90 and a seat back 92 .
- the seat back 92 has downwardly extending legs 94 which project inside the side walls 76 and into slots in the seat surface 74 of the base portion 90 where they are secured by a bolt 96 .
- Other parts of the seat shown in FIG. 11 are denoted by the same reference numerals as the corresponding parts of the seat shown in FIG. 10 and will not be described in detail.
Landscapes
- 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)
- Automotive Seat Belt Assembly (AREA)
Abstract
Description
- This invention relates to a child safety seat of the type comprising a seat body having a seat portion, a seat back and vertically extending side walls projecting forwardly from the side edges of the seat back and upwardly from the side edges of the seat portion at least in the region of the junction between the seat portion and the seat back, the side walls having belt guide openings adjacent to the junction between the seat portion and the seat back for receiving the lap portion of a vehicle seat belt by which the child seat may be secured in place on a vehicle seat, and a harness comprising shoulder straps secured to the seat back.
- A child seat of this type is disclosed in U.S. Pat. No. 3,992,056. The openings for receiving the lap belt are in the form of closed apertures through which the belt has to be threaded. To simplify installation, it has been proposed to replace such openings by open-sided recesses. However, when such a seat is involved in an accident, the shoulder straps of the child harness apply a load to the seat back which tends to bend it forwards relative to the seat portion. Such recesses constitute a point of weakness where this bending force is concentrated. Accordingly, it is necessary to reinforce this region of the seat body thus increasing its overall weight. It is an object of the invention to provide a child seat of the type described above in which such reinforcement is unnecessary.
- According to the invention, in a child seat of the type described above, characterised in that a respective access slot extends from each belt guide opening to the edge of the corresponding side wall and the seat body is adapted to deform so that the side walls of each access slot come into abutment with one another when a force is applied to the seat back in a direction to bend it towards the seat portion.
- FIG. 1 is a perspective view of a child seat in accordance with the invention held in place by a two-point vehicle seat belt, with its child harness partly broken away;
- FIG. 2 is a side view of the seat shown in FIG. 1, in its normal condition;
- FIG. 3 is a perspective view of the child seat shown in FIGS. 1 and 2, but held in place by a three-point vehicle seat belt, with its five-point child harness partly broken away;
- FIG. 4 is a perspective view of corresponding to FIG. 3 but with the child harness complete;
- FIG. 5 is a side view of the set shown in FIG. 4;
- FIG. 6 is a side view, similar to FIG. 2, but showing the result of application of a forward load to the seat back;
- FIG. 7 is a perspective view of the child seat shown in FIG. 4 with a T-shield replacing the five-point child harness;
- FIGS. 8 and 9 are perspective views, corresponding to FIGS. 3 and 4, of a child seat having an alternative routing for the vehicle seat belt;
- FIG. 10 is a side view of another child seat in accordance with the invention, having a removable seat back; and
- FIG. 11 is a side view of another child seat similar to the seat shown if FIG. 10 but having a different arrangement for attaching the removable seat back.
- Referring to FIGS. 1 and 2, a child safety seat comprises a
seat body 10 having aseat portion 12,side walls seat portion 12 and the seat back 18, eachside wall elongate opening 20 with a generallyvertical slot 22 extending from theopening 20 to the edge of thecorresponding side wall seat 10 is to be secured on a vehicle seat using a two-point vehicle seat belt, thelap belt 24 is passed down through theslot 22 into theopenings 20 and thebuckle 28 fastened. A child occupant of theseat body 10 sits on top of thelap belt 24. - FIG. 3 shows the
seat body 10 of FIGS. 1 and 2 secured by a three-point vehicle seat belt having alap strap 24 and adiagonal shoulder strap 26 secured by thebuckle 28. The child occupant sits on top of thelap strap 24 with the shoulder belt between his/her back and the seat back 18. - As can best be seen in FIGS. 4 and 5, the
child seat 10 is provided with a harness comprisingshoulder straps lap straps crutch strap 38 which are secured to theseat portion 12. Usually, eachshoulder strap lap corresponding lap strap buckle 40. - Referring to FIG. 6, in the event of sudden deceleration causing movement of the torso of a child occupant away from the seat back18, the resulting force exerted by
shoulder straps seat body 10 to bend round the orientation shown in chain-dotted lines to the orientation shown in solid lines. As a result, theslot 22 closes up so that force can then be transmitted directly from therear side wall 44 of theslot 22 to thefront side wall 46 thereof, thereby resisting further bending of theseat body 10. - FIG. 7 shows the
seat body 10 provided with a so-called T-shield 50 connecting theshoulder straps crutch strap 38. This type of child harness does not have lap straps. - FIGS. 8 and 9 show a child seat having a
seat body 60 similar to theseat body 10 shown in FIGS. 1 to 7 except that its seat back 62 has twoopenings elongate openings 22 in theside walls lap strap 24 and theshoulder strap 26 of the vehicle seat belt are threaded through these openings so as to be held in abutment with the seat back 62. Other parts of theseat body 60 and the child harness are denoted by the same reference numerals as the corresponding parts of the seat shown in FIGS. 3 and 4 and will not be described in detail. - FIG. 10 shows a child seat comprising a
base 70 and a detachable seat back 72. Thebase 70 includes aseat surface 74 and twoside walls 76, each of which has anopening 78 with avertical slot 80 extending to the top of thecorresponding side wall 76, similar to theopenings 20 andslots 22 of FIGS. 1-8. Thebase 70 is secured on a vehicle seat by at least the lap strap of a vehicle seat belt which is located in theopenings 78. - The seat back72 has downwardly extending
legs 82 projecting on each side of the rear ends of theside walls 76 and having a hole for receiving abolt 84 by which the seat back 72 is secured to thebase 70. Shoulder straps of a child harness (not shown) are secured to the seat back 72. When a load is applied to these shoulder straps, the resulting force is transmitted from thebottom edges 86 of the side walls of the seat back 72 to thetop edges 88 of theside walls 76 behind theslots 80. If the force is sufficient, theslots 80 tend to close up in a similar manner to theslots 22, as shown in FIG. 6. When the seat back 72 is removed, thebase 70 can serve as a booster seat. - FIG. 11 illustrates a variant of the seat shown in FIG. 10 having a
base 90 and a seat back 92. In contrast to FIG. 10, theseat back 92 has downwardly extending legs 94 which project inside theside walls 76 and into slots in theseat surface 74 of thebase portion 90 where they are secured by abolt 96. Other parts of the seat shown in FIG. 11 are denoted by the same reference numerals as the corresponding parts of the seat shown in FIG. 10 and will not be described in detail. - When any of the child seats shown in the drawings is used by a larger child without the
harness
Claims (19)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0012637.5A GB0012637D0 (en) | 2000-05-25 | 2000-05-25 | Child safety seat |
GB0012637.5 | 2000-05-25 | ||
GB0012637 | 2000-05-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010045767A1 true US20010045767A1 (en) | 2001-11-29 |
US6382722B2 US6382722B2 (en) | 2002-05-07 |
Family
ID=9892292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/847,573 Expired - Fee Related US6382722B2 (en) | 2000-05-25 | 2001-05-02 | Child safety seat |
Country Status (5)
Country | Link |
---|---|
US (1) | US6382722B2 (en) |
EP (1) | EP1157882A3 (en) |
JP (1) | JP2002019503A (en) |
AU (1) | AU4016701A (en) |
GB (1) | GB0012637D0 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050168025A1 (en) * | 2004-02-04 | 2005-08-04 | Recaro Gmbh & Co. Kg | Child's car seat |
CN100465025C (en) * | 2004-06-19 | 2009-03-04 | 百代求精有限公司 | Child safety seat |
AU2012238254A1 (en) * | 2012-10-09 | 2014-04-24 | Hbg Ip Holding Pty Limited | Child Restraint for a Vehicle |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6705675B1 (en) * | 2000-05-08 | 2004-03-16 | Graco Children's Products Inc. | Adjustable child seat for toddlers to small children |
US6672663B2 (en) * | 2000-09-22 | 2004-01-06 | Cosco Management, Inc. | Retainer system for juvenile vehicle seat |
US7300113B2 (en) * | 2003-04-29 | 2007-11-27 | Thomas Charles Baloga | Child's booster seat |
US7011368B2 (en) * | 2003-11-11 | 2006-03-14 | Am-Safe Aviation | Stackable child restraint for aircraft |
US20050269849A1 (en) * | 2004-06-07 | 2005-12-08 | Sherry Mathis | Baby couch seat |
US7448690B2 (en) * | 2006-07-20 | 2008-11-11 | The University Of Alabama | Child safety seat with emergency harness release |
US8132864B2 (en) * | 2006-07-20 | 2012-03-13 | Blackmon Michael M | Child safety seat with emergency harness release |
AU2009250945B2 (en) * | 2008-12-15 | 2014-10-02 | Hbg Ip Holding Pty Ltd | Child restraint |
FR2952592B1 (en) * | 2009-11-16 | 2011-12-30 | Dorel France Sa | CAR SEAT FOR REVERSIBLE CHILD WITH UNIQUE STRAPPING. |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3992056A (en) * | 1975-07-14 | 1976-11-16 | Questor Corporation | Car seat |
FR2526734B1 (en) * | 1982-05-11 | 1987-03-06 | Renault | ADDITIONAL CUSHION FOR CHILD PASSENGER OF A VEHICLE |
GB2154131B (en) | 1984-02-17 | 1988-10-26 | Thomas Richard Swift | Child's vehicle seat |
DE3519322A1 (en) * | 1985-05-30 | 1986-12-04 | TRW Repa GmbH, 7077 Alfdorf | DEVICE FOR FASTENING A CHILD SEAT ON A VEHICLE SEAT BY MEANS OF A NORMAL THREE-POINT AUTOMATIC SAFETY BELT SYSTEM |
GB8801716D0 (en) | 1988-01-26 | 1988-02-24 | Britax Excelsior | Child's safety seat |
FR2735002B1 (en) * | 1995-06-07 | 1997-07-25 | Ampafrance | CHILD SEAT WITH MOLDED SEAT |
-
2000
- 2000-05-25 GB GBGB0012637.5A patent/GB0012637D0/en not_active Ceased
-
2001
- 2001-05-02 US US09/847,573 patent/US6382722B2/en not_active Expired - Fee Related
- 2001-05-02 EP EP01304029A patent/EP1157882A3/en not_active Withdrawn
- 2001-05-02 AU AU40167/01A patent/AU4016701A/en not_active Abandoned
- 2001-05-25 JP JP2001156670A patent/JP2002019503A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050168025A1 (en) * | 2004-02-04 | 2005-08-04 | Recaro Gmbh & Co. Kg | Child's car seat |
US7261376B2 (en) * | 2004-02-04 | 2007-08-28 | Recaro Gmbh & Co. Kg | Child's car seat |
CN100465025C (en) * | 2004-06-19 | 2009-03-04 | 百代求精有限公司 | Child safety seat |
AU2012238254A1 (en) * | 2012-10-09 | 2014-04-24 | Hbg Ip Holding Pty Limited | Child Restraint for a Vehicle |
AU2012238254C1 (en) * | 2012-10-09 | 2017-09-14 | Hbg Ip Holding Pty Limited | Child Restraint for a Vehicle |
AU2016277541C1 (en) * | 2012-10-09 | 2019-12-12 | Hbg Ip Holding Pty Ltd | Child Restraint for a Vehicle |
Also Published As
Publication number | Publication date |
---|---|
AU4016701A (en) | 2001-11-29 |
JP2002019503A (en) | 2002-01-23 |
EP1157882A3 (en) | 2002-08-14 |
GB0012637D0 (en) | 2000-07-12 |
EP1157882A2 (en) | 2001-11-28 |
US6382722B2 (en) | 2002-05-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BRITAX EXCELSIOR LIMITED, ENGLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BURLEIGH, DAVID WILLIAM;REEL/FRAME:011781/0502 Effective date: 20010404 |
|
AS | Assignment |
Owner name: BARCLAYS BANK PLC, AS SECURITY AGENT, UNITED KINGD Free format text: SECURITY INTEREST;ASSIGNOR:BRITAX EXCELSIOR LIMITED;REEL/FRAME:017154/0235 Effective date: 20051020 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20060507 |
|
AS | Assignment |
Owner name: BRITAX EXCELSIOR LIMITED, UNITED KINGDOM Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:BARCLAYS BANK PLC, AS SECURITY AGENT;REEL/FRAME:025680/0912 Effective date: 20110114 |