CA1184482A - Child safety seat with automatic retractable safety belts - Google Patents
Child safety seat with automatic retractable safety beltsInfo
- Publication number
- CA1184482A CA1184482A CA000459684A CA459684A CA1184482A CA 1184482 A CA1184482 A CA 1184482A CA 000459684 A CA000459684 A CA 000459684A CA 459684 A CA459684 A CA 459684A CA 1184482 A CA1184482 A CA 1184482A
- Authority
- CA
- Canada
- Prior art keywords
- seat
- strap
- belt
- secured
- backrest
- 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.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims abstract description 11
- 230000000452 restraining effect Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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
- B60N2/2857—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
-
- 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
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/10—Safety belts or body harnesses in vehicles specially adapted for children or animals
- B60R22/105—Safety belts or body harnesses in vehicles specially adapted for children or animals for children
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Seats For Vehicles (AREA)
Abstract
IMPROVED CHILD SAFETY SEAT WITH
AUTOMATIC RETRACTABLE SAFETY BELTS
ABSTRACT OF THE DISCLOSURE
A child safety seat having a seat portion, a backrest portion, side panels, a frame secured to the seat and straps to secure the frame over an automobile seat.
The improvement comprises an arresting belt assembly fixedly secured at a first end and extending from a front end of the seat portion to an uppermost part of the backrest portion for movement therethrough. A retracting mechanism is fixedly secured outwardly of the seat and backrest portions for attachment of a second end of the belt assembly.
The retracting mechanism has a belt winding spool to maintain the belt under tension in position across the seat and to permit easy retraction of the belt from the spool to permit limited free movement of a child strapped in the seat. Impact locking means is provided in the retracting mechanism to positively lock the belt assembly when the seat is subjected to a predetermined abrupt movement.
AUTOMATIC RETRACTABLE SAFETY BELTS
ABSTRACT OF THE DISCLOSURE
A child safety seat having a seat portion, a backrest portion, side panels, a frame secured to the seat and straps to secure the frame over an automobile seat.
The improvement comprises an arresting belt assembly fixedly secured at a first end and extending from a front end of the seat portion to an uppermost part of the backrest portion for movement therethrough. A retracting mechanism is fixedly secured outwardly of the seat and backrest portions for attachment of a second end of the belt assembly.
The retracting mechanism has a belt winding spool to maintain the belt under tension in position across the seat and to permit easy retraction of the belt from the spool to permit limited free movement of a child strapped in the seat. Impact locking means is provided in the retracting mechanism to positively lock the belt assembly when the seat is subjected to a predetermined abrupt movement.
Description
BACKGROUND OF INVENTION
(a) Field of the Invention The present invention relates to a child safety seat having an automatic retractable safety belt assembly.
(b) Description of Prior Art Safety seats for securement on an automotive vehicle seat are known such as described in U,S.
patent 3,9~2,035 issued November 25, 1975 and U.S.
Reissue patent 29,841 of NOvember 21, 1978. However, seats of these types are equipped with a safety belt harness wherein the length of the belt sections are adjusted to fit the child seated in the seat, and once adjusted the belts are of a fixed length immovably restraining the child in the seat. The disadvantage with such seat harnesses is that every time a child of different size or the same child using different clothing is seated on the seat, it is constantly necessary to readjust the length of some of the belts of the harness to suit the size of the child. If these belts are not adjusted p.roperly, then they can slip off and not provide the intended protection. Also, such belt harnesses are adjustably secured to the frame supporting the seat and these adjustable securement sometimes become undone due ~5 to constant pulling on the belt when adjusti.ng the harness each time a child is placed in the seat. Another disadvan-tage of such belt harnesses is that the child is restrained within the seat and is not comfortable as he is not free of any movement, particularly in the upper part of the body.
%
SUMMARY OF I~VENTION
It is a -feature of the present invention to provi.de a child safety seat having an improved arresting belt assembly which substantially overcomes the abovc-mentioned disadvantages of the prior art.
Another feature of the present invention is to provide a child safety seat having an improved arresting belt assembly which is automatically adjustable to suit children of different sizes and which is easy to use and assemble.
Another feature of the present invention is to provide a child safety seat having an arresting belt assembly which is automatically adjustable and which is positively secured at opposed ends, thus preventing the assembly from becoming undone.
Another feature of the present invention is to provide a child safety seat having an arresting belt assembly which is fail-safe and which is more comfortable to the child.
According to the above features, from a broad aspect, the present invention provides a child safety seat having a seat portion, a backrest portion, side panels, a frame secured to the seat and straps to secure the frame over an automobile seat. The improvement comprises an arresting belt assembly fixedly secured at a first end and extending from a front end of the seat portion to an uppermost part of the backrest portion for movement therethrough. A retracting mechanism is fixedly secured outwardly of the seat and backrest portions for attachment of a second end of the belt assembly. The retracting mechanism has a belt winding spool to maintain the belt under tension in position across the seat and to permit easy retraction of the belt from the spool to permit limited free movement of a child strapped in the seat. Impact locking means is provided in the retracting mechanism to positively lock the belt assembly when the seat is sub~ected to a predetermined abrupt movement.
BRIEF DESCRIPTION OF DRAWI~GS
An example of a preferred embodiment of the present invention will now be described with reference to the accompanying drawings, in which:
FIGURE 1 is a fragmented side view of the safety seat having the improved arresting belt assembly of the present invention;
FIGURE 2 is a rear view, partly fragmented, of the child safety seat showing the retracting mechanism attachment at one end of the arresting belt assembly, and FIGURE 3 is a front view of the child safety seat illustrating the configuration of the arresting belt assembly of the present invention.
Referring now to the drawings, there is shown at 10 a child safety seat having a seat portion 11, a back-rest portion 12 and side panels 13. A frame 14 secures the seat to a vehicle seat (not shown) by means of a strap assembly (also not shown) but well known in -the art. An arresting belt assembly 15 is secured at a first end 16 and extends from a front end of -the seat portion 11 to ~ an uppermost part of -the backrest portion 12 for retract-able movement therethrough.
%
As shown in Figure 3, the backrest portion is provided with a plurality of pairs of slotted holes 17 whereby to provide adjus-table passage of the shoulder straps 18 of the strap assembly to accommodate children of different sizes to be strapped in the seat.
Essentially, the arresting belt assembly comprises two straps which are secured at their lower end 16 to the frame 14 of the seat and which pass through a respective one of two slots 19 in a front portion of the seat portion 11. A further central restraining strap 20 is secured to the frame 14 and extends through the seat portion 11 in a central slot 21. A buckle assembly 22 secures the central restraining strap 20 to a lower portion of the shoulder straps 18 while permitting axial displacement of the shoulder straps 18. The buckle assembly 22 consists of a buckle 23 secured to the central strap 20 and having a dual port (not shown) to receive therein two guide elements 24 through which the shoulder straps 18 are slidingly restrained whereby to guide the straps in substantially parallelism over a central portion of the seat. A sliding guide clip 25, well known in the art, slidingly and releasably secures the shoulder straps in side by-side relationship over a central portion of the backrest portion 12.
As shown more clearly in Figures 1 and 2, the top portion of the shoulder straps 18 extends behind the backrest 12 and are interconnected to a common winding strap 26 which is secured to a belt retracting mechanism 27. The belt retracting mechanism 27 is fixedly secured to the underside of the seat portion 11 near the hackrest -~8~
portion L2 and is provided with a winding spool 28 to maintain the belt 26 and the shoulder straps 18 under tension and in position across the seat, as shown in Figure 3, to permit easy retraction of the belt from the spool and to permit limited free movement of a child strapped in the seat. An impact locking means or mechanism 29 is associated with the spring loaded spool 28 to positively lock the belt 26 and consequently the shoulder straps 18 when the seat is su~jected to a predetermined abrupt movement. The retracting mechanism 27 is that well known in the art and utilized presently in automotive vehicles in the shoulder strap attachment to the vehicle frame.
In order to maintain the shoulder straps in substantially displaceable unison whereby to prevent one strap from being looser than the other strap, the shoulder straps are interconnected at their rear end 30 to a transverse interconnecting strap 31 which is secured at a top end of the winding strap 26~ Thus, the shoulder straps move in unison when displaced outwardly from the backrest 12.
It can be seen that with the arres-ting strap assembly of the present invention it is easy to install a child in the seat as the length of the straps need not be adjusted each time the child is placed in the seat.
All that is necessary to do is to disengage the guide clip 25 from one of the shoulder straps and to pull the strap assembly Ollt fitting the child with each leg to one side of the center strap 20 and placing the shoulder straps over his shoulders and -then again securing the guide clip 25 to the detached shoulder straps. The child is then securely strapped in the seat but free of forward movement in its upper body portion. Should the seat be subjected to an abrupt predetermined movement or shoc}~, the retracting mechanism 27 will lock with the arresting belt assembly restraining the child from further forward movement.
It is within the ambit of the present invention to cover any obvious modifications of the example of the preferred embodiment described herein, provided such example falls within the scope of the appended claims.
For example, the retracting mechanism 27 may be conve-niently ~ecured in a manner different Erom that shown, provided it carries out the intended function described.
(a) Field of the Invention The present invention relates to a child safety seat having an automatic retractable safety belt assembly.
(b) Description of Prior Art Safety seats for securement on an automotive vehicle seat are known such as described in U,S.
patent 3,9~2,035 issued November 25, 1975 and U.S.
Reissue patent 29,841 of NOvember 21, 1978. However, seats of these types are equipped with a safety belt harness wherein the length of the belt sections are adjusted to fit the child seated in the seat, and once adjusted the belts are of a fixed length immovably restraining the child in the seat. The disadvantage with such seat harnesses is that every time a child of different size or the same child using different clothing is seated on the seat, it is constantly necessary to readjust the length of some of the belts of the harness to suit the size of the child. If these belts are not adjusted p.roperly, then they can slip off and not provide the intended protection. Also, such belt harnesses are adjustably secured to the frame supporting the seat and these adjustable securement sometimes become undone due ~5 to constant pulling on the belt when adjusti.ng the harness each time a child is placed in the seat. Another disadvan-tage of such belt harnesses is that the child is restrained within the seat and is not comfortable as he is not free of any movement, particularly in the upper part of the body.
%
SUMMARY OF I~VENTION
It is a -feature of the present invention to provi.de a child safety seat having an improved arresting belt assembly which substantially overcomes the abovc-mentioned disadvantages of the prior art.
Another feature of the present invention is to provide a child safety seat having an improved arresting belt assembly which is automatically adjustable to suit children of different sizes and which is easy to use and assemble.
Another feature of the present invention is to provide a child safety seat having an arresting belt assembly which is automatically adjustable and which is positively secured at opposed ends, thus preventing the assembly from becoming undone.
Another feature of the present invention is to provide a child safety seat having an arresting belt assembly which is fail-safe and which is more comfortable to the child.
According to the above features, from a broad aspect, the present invention provides a child safety seat having a seat portion, a backrest portion, side panels, a frame secured to the seat and straps to secure the frame over an automobile seat. The improvement comprises an arresting belt assembly fixedly secured at a first end and extending from a front end of the seat portion to an uppermost part of the backrest portion for movement therethrough. A retracting mechanism is fixedly secured outwardly of the seat and backrest portions for attachment of a second end of the belt assembly. The retracting mechanism has a belt winding spool to maintain the belt under tension in position across the seat and to permit easy retraction of the belt from the spool to permit limited free movement of a child strapped in the seat. Impact locking means is provided in the retracting mechanism to positively lock the belt assembly when the seat is sub~ected to a predetermined abrupt movement.
BRIEF DESCRIPTION OF DRAWI~GS
An example of a preferred embodiment of the present invention will now be described with reference to the accompanying drawings, in which:
FIGURE 1 is a fragmented side view of the safety seat having the improved arresting belt assembly of the present invention;
FIGURE 2 is a rear view, partly fragmented, of the child safety seat showing the retracting mechanism attachment at one end of the arresting belt assembly, and FIGURE 3 is a front view of the child safety seat illustrating the configuration of the arresting belt assembly of the present invention.
Referring now to the drawings, there is shown at 10 a child safety seat having a seat portion 11, a back-rest portion 12 and side panels 13. A frame 14 secures the seat to a vehicle seat (not shown) by means of a strap assembly (also not shown) but well known in -the art. An arresting belt assembly 15 is secured at a first end 16 and extends from a front end of -the seat portion 11 to ~ an uppermost part of -the backrest portion 12 for retract-able movement therethrough.
%
As shown in Figure 3, the backrest portion is provided with a plurality of pairs of slotted holes 17 whereby to provide adjus-table passage of the shoulder straps 18 of the strap assembly to accommodate children of different sizes to be strapped in the seat.
Essentially, the arresting belt assembly comprises two straps which are secured at their lower end 16 to the frame 14 of the seat and which pass through a respective one of two slots 19 in a front portion of the seat portion 11. A further central restraining strap 20 is secured to the frame 14 and extends through the seat portion 11 in a central slot 21. A buckle assembly 22 secures the central restraining strap 20 to a lower portion of the shoulder straps 18 while permitting axial displacement of the shoulder straps 18. The buckle assembly 22 consists of a buckle 23 secured to the central strap 20 and having a dual port (not shown) to receive therein two guide elements 24 through which the shoulder straps 18 are slidingly restrained whereby to guide the straps in substantially parallelism over a central portion of the seat. A sliding guide clip 25, well known in the art, slidingly and releasably secures the shoulder straps in side by-side relationship over a central portion of the backrest portion 12.
As shown more clearly in Figures 1 and 2, the top portion of the shoulder straps 18 extends behind the backrest 12 and are interconnected to a common winding strap 26 which is secured to a belt retracting mechanism 27. The belt retracting mechanism 27 is fixedly secured to the underside of the seat portion 11 near the hackrest -~8~
portion L2 and is provided with a winding spool 28 to maintain the belt 26 and the shoulder straps 18 under tension and in position across the seat, as shown in Figure 3, to permit easy retraction of the belt from the spool and to permit limited free movement of a child strapped in the seat. An impact locking means or mechanism 29 is associated with the spring loaded spool 28 to positively lock the belt 26 and consequently the shoulder straps 18 when the seat is su~jected to a predetermined abrupt movement. The retracting mechanism 27 is that well known in the art and utilized presently in automotive vehicles in the shoulder strap attachment to the vehicle frame.
In order to maintain the shoulder straps in substantially displaceable unison whereby to prevent one strap from being looser than the other strap, the shoulder straps are interconnected at their rear end 30 to a transverse interconnecting strap 31 which is secured at a top end of the winding strap 26~ Thus, the shoulder straps move in unison when displaced outwardly from the backrest 12.
It can be seen that with the arres-ting strap assembly of the present invention it is easy to install a child in the seat as the length of the straps need not be adjusted each time the child is placed in the seat.
All that is necessary to do is to disengage the guide clip 25 from one of the shoulder straps and to pull the strap assembly Ollt fitting the child with each leg to one side of the center strap 20 and placing the shoulder straps over his shoulders and -then again securing the guide clip 25 to the detached shoulder straps. The child is then securely strapped in the seat but free of forward movement in its upper body portion. Should the seat be subjected to an abrupt predetermined movement or shoc}~, the retracting mechanism 27 will lock with the arresting belt assembly restraining the child from further forward movement.
It is within the ambit of the present invention to cover any obvious modifications of the example of the preferred embodiment described herein, provided such example falls within the scope of the appended claims.
For example, the retracting mechanism 27 may be conve-niently ~ecured in a manner different Erom that shown, provided it carries out the intended function described.
Claims (8)
1. In a child safety seat having a seat portion, a backrest portion, side panels, a frame secured to said seat and strap means to secure said frame over an automobile seat, the improvement comprising an arresting belt assembly fixedly secured at a first end and extend-ing from a front end of said seat portion to an uppermost part of said backrest portion for movement therethrough, a retracting mechanism fixedly secured outwardly of said seat and backrest portions for attachment of a second end of said belt assembly, said retracting mechanism having a belt winding spool to maintain said belt under tension in position across said seat and permitting easy retraction of said belt from said spool to permit limited free movement of a child strapped in said seat, and impact locking means in said retracting mechanism to positively lock said belt assembly when said seat is subjected to a predetermined abrupt movement.
2. A safety seat as claimed in claim 1 wherein said retracting mechanism is secured in a rearward portion of the underside of said seat portion.
3. A safety seat as claimed in claim 1 wherein said belt assembly comprises two shoulder straps extending across at least an upper section of said backrest portion and through a respective hole adjacent a respective side of said backrest, said two shoulder straps being secured to a common winding strap rearwardly of said backrest, said winding strap being secured to said winding spool.
4. A safety seat as claimed in claim 3 wherein said two shoulder straps are fixedly secured at a lower end to said frame and extend through a respective hole on a respective side of said seat portion.
5. A safety seat as claimed in claim 4 wherein there is further provided a central restraining strap secured to said frame and extending through said seat portion in a central front portion thereof, a buckle assembly securing said central restraining strap to a lower portion of said shoulder straps while permitting axial displacement of said shoulder straps.
6. A safety seat as claimed in claim 5 wherein there is further provided a guide clip for slidingly and releasably securing said shoulder straps in side-by-side relationship over a central portion of said backerest.
7. A safety seat as claimed in claim 3 wherein a transverse interconnecting strap is secured at a top end of said winding strap, said shoulder straps being connected to said interconnecting strap to a respective side of said winding strap to maintain said shoulder strap in unison displacement
8. A safety seat as claimed in claim 7 wherein said backrest is provided with a plurality of pairs of slotted holes to permit adjustable passage of said shoulder straps to accommodate children of different sizes to be strapped in said seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000459684A CA1184482A (en) | 1984-07-25 | 1984-07-25 | Child safety seat with automatic retractable safety belts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000459684A CA1184482A (en) | 1984-07-25 | 1984-07-25 | Child safety seat with automatic retractable safety belts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1184482A true CA1184482A (en) | 1985-03-26 |
Family
ID=4128390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000459684A Expired CA1184482A (en) | 1984-07-25 | 1984-07-25 | Child safety seat with automatic retractable safety belts |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1184482A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986002050A1 (en) * | 1984-09-26 | 1986-04-10 | Ase (Uk) Limited | Child safety seat |
| EP0295838A1 (en) * | 1987-06-17 | 1988-12-21 | Britax Child-Care Products Pty Ltd. | Harness adjuster for child's seat |
| EP0693394A3 (en) * | 1994-06-20 | 1998-03-18 | Trw Vehicle Safety Systems Inc. | A child seat for a vehicle and a seat belt system for the child seat |
| EP1631166A2 (en) * | 2003-06-12 | 2006-03-08 | INDIANA MILLS & MANUFACTURING, INC. | Child restraint system |
-
1984
- 1984-07-25 CA CA000459684A patent/CA1184482A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986002050A1 (en) * | 1984-09-26 | 1986-04-10 | Ase (Uk) Limited | Child safety seat |
| EP0295838A1 (en) * | 1987-06-17 | 1988-12-21 | Britax Child-Care Products Pty Ltd. | Harness adjuster for child's seat |
| EP0693394A3 (en) * | 1994-06-20 | 1998-03-18 | Trw Vehicle Safety Systems Inc. | A child seat for a vehicle and a seat belt system for the child seat |
| EP1631166A2 (en) * | 2003-06-12 | 2006-03-08 | INDIANA MILLS & MANUFACTURING, INC. | Child restraint system |
| EP1631166A4 (en) * | 2003-06-12 | 2007-07-25 | Indiana Mills & Mfg | Child restraint system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |