CARRY HANDLE SEAT LATCH FOR CHILD SAFETY SEAT
A child safety seat assembly, including a base for being positioned on a vehicle seat bottom. The base includes an Isofix-type latch for attachment of the base to an Isofix bar of the vehicle seat, and a separate seat belt lock-off for allowing the base to be secured to the vehicle seat by means of the vehicle seat belt. A child carrier is provided for being releasably attached to the base. The carrier includes a handle for allowing the carrier to be lifted and carried. The handle includes a latching assembly for releasably locking the carrier to the base and detaching the carrier from the base with a single hand.
Latest BRITAX CHILD SAFETY, INC. Patents:
This application claims the benefit of Provisional Application No. 60/777,423, filed on Feb. 28, 2006.
TECHNICAL FIELD AND BACKGROUND OF INVENTIONThis invention relates to child safety seats, particularly those of the type principally intended to provide safe seating conditions for infants and small children while riding in vehicles. More particularly, this application discloses a carry handle according to several embodiments that permits a user to safely and easily detach the carrier from the base with one hand, as well as a latch mechanism that securely latches the carrier to the base. This type of seating product is regulated by governmental authorities in order to provide a safe environment during vehicle operation. Many such seats also provide features that permit the seat to be easily removed from and installed in the vehicle, provide the ability for the seat to be carried or attached to other conveyances, such as strollers. As governmental regulations have changed, seats have been designed to provide, for example, secure latching points to the vehicle seat, rear-facing attachment to the vehicle seat, separation and removal of a carrier portion from a base portion, and adjustment of the carrier to accommodate the size of the child's growth during the period of seat use that comply with these regulations. Seats heretofore developed have incorporated some such features piecemeal, and thus present countervailing disadvantages, such as unnecessary weight and bulk, difficulty in removing the carrier/base combination from, and attaching the carrier/base combination to, the vehicle seat, or the carrier from the base, and adjusting the carrier and/or base to accommodate the child's growth.
The present application discloses a child safety seat that has been designed to be relatively light weight, compact, easy to use, versatile and adaptable to a wide range of vehicle seating types and features, while achieving a high standard of comfort and safety. Within the basic design, provision has been made for the addition or removal of features to achieve compliance with varying governmental regulations. In particular, the seat can be provided with fixed Isofix latches, tethered Isofix latches or seatbelt locks.
The seat and its components as disclosed in the application also have a novel and aesthetically pleasing appearance.
SUMMARY OF THE INVENTIONTherefore, it is an object of the invention to provide a child safety seat.
It is another object of the invention to provide a child safety seat that is lightweight and compact.
It is another object of the invention to provide a child safety seat that has a wide range of adjustment and adaptability.
It is another object of the invention to provide a child safety seat that permits modification as required to comply with different governmental regulations.
It is another object of the invention to provide a child safety seat that is easily installed in and removed from a vehicle seat.
It is another object of the invention to provide a child safety seat that includes a carrier that is easily detached from a base.
It is another object of the invention to provide a carrier that can be attached to other conveyances such as strollers.
It is another object of the invention to provide a child safety seat that presents an aesthetically pleasing appearance, both as an integrated whole and as separate elements.
BRIEF DESCRIPTION OF THE DRAWINGSThe description of the invention will proceed with reference to the following drawings:
Referring now to
Referring now to
Shoulder harness slots 26, 28 accommodate a pair of shoulder straps 30, 32, shown in
The carrier 12 includes a pair of belt path inserts 40, 42 positioned on opposite sides of the carrier 12 that permit a vehicle seat belt to be extended laterally over the carrier 12, correctly positioned relative to the carrier 12 and retained in that position. A pair of side adjust inserts 44, 46 are positioned in the leg rest portion 20 of the carrier 12. The inserts 44, 46 include respective adjustment knobs 48, 50 that are positioned on respective threaded adjustment studs, not shown, and reside on the exterior surface of the carrier 12. By turning the knobs 48, 50, the effective width of the leg rest portion 20 can be adjusted inwardly or outwardly for maximum comfort and safety of the seat occupant.
The carrier 12 is lifted and carried by means of a carry handle 60 mounted to the carrier 12 by hubs 62, 64. As is best shown in
The handle 60 also operates as the means of unlocking the carrier 12 from the base 14. As best shown in
This feature substantially reduces the possibility that the handle release 70 will inadvertently rotate and release the carrier 12 from the base 14 during an impact or sudden change in vehicle speed or acceleration. It is not necessary to rotate the handle release 70 when locking the carrier 12 to the base 13.
Lock indicator windows 82 (
Referring now to
Referring now to
The base 14 is leveled on the vehicle seat bottom by a level adjustor knob 114. The knob 12, when turned, rotates a screw that extends a block along the longitudinal axis of the base 14. The block engages a slide that wedges against a recline block 116 positioned in the bottom surface of the base 14 and causes the base 14 to tilt. The carrier 12 mounted in the base 14 can thus be positioned at an appropriate level position. A level indicator 118 positioned on either the base 14 or the carrier 12 (
Referring to
Alternatively, the base 14 may be secured to the vehicle seat by means of Isofix latches 130, 132. As is best shown in
In an alternative embodiment,
As is best shown in
The tubes 154 and 156 are retained in the desired telescoped position by spaced grooves formed in their surfaces. The grooves extend along only a portion of the axially-extending surfaces, and by rotating one of the tubes 154, 156 relative to the other, they can be slid into the desired position where they together form the appropriate length, and then rotated to interlock the grooves. This is preferable to tubes having openings that must be aligned and then locked in position with a locking pin or other locking device.
The foot prop 150 may alternatively have adjustable tubes that are tightened in position by a friction lock or other similar tightening device.
Referring now to
The carrier 202 is molded of high-impact plastic according to conventional techniques and includes a shell 206 with an upper back rest and head rest portion 208, and a torso and leg rest portion 210. A head rest insert 212 is positioned in the head rest portion 208 and is preferably molded of a semirigid impact-absorbing material such as expanded polystyrene (EPS). The interior side-to-side distance of a preferred embodiment of the headrest insert 212 is approximately 310 mm.
As is best shown in
Shoulder harness slots 218, 220 accommodate a pair of shoulder straps, not shown, that extend through the back of the shell 206 and pass over the shoulders of the seat occupant. The shoulder straps gain access to the exterior of the carrier 202 through slots in the padding and dress cover, as with the embodiment shown in
The shoulder straps are tightened by a latch 222, known as an “A-lock adjustor”, positioned in an opening 224 in the leg rest portion 210 of the shell 206 that captures and retains a single latch strap that extends past the latch 224 and is tightened by pulling the strap through the latch 224. The latch strap is released by depressing the latch 224 to release an engagement with the strap to permit it to be withdrawn from the latch 224 by pulling on the shoulder straps.
The carrier 202 includes a pair of belt path inserts 230, 232 positioned on opposite sides of the carrier 202 that permit a vehicle seat belt to be extended laterally over the carrier 12, correctly positioned relative to the carrier 202 and retained in that position. A pair of side adjust inserts 234, 236 are positioned in the leg rest portion 204 of the carrier 202. The inserts 234, 236 include respective adjustment knobs 238, 240 that are positioned on respective threaded adjustment studs, not shown, and reside on the exterior surface of the carrier 202 outboard of the belt path inserts 230, 232. By rotating the knobs 238, 240, the effective width of the leg rest portion 210 can be adjusted inwardly or outwardly for maximum comfort and safety of the occupant.
The carrier 202 is lifted and carried by means of a carry handle 250 mounted to the carrier 202 by hubs 252, 254. As is best shown in
The handle 250 also operates as the means of unlocking the carrier 202 from the base 14. Several embodiments of a handle release are shown and described.
The handle 250 shown in
Referring now to
Referring to
More specifically, the button 282 is shown in the normal, latched position in
Features of the base 204 are now described with reference to
The base 204 includes a curved anti-rebound bar 320 that projects outwardly and upwardly from the foot end of the base 204 and engages the seat back of the vehicle seat to which the seat 200 is attached. In the event of an impact or sudden change in velocity of the vehicle in which the seat 200 is carried, the anti-rebound bar 320 retards inertia-induced rotation of the base 204 and the attached carrier 202 by transmitting rotational force applied to the seat 200 into the seat back of the vehicle seat onto which the seat 200 is attached.
Referring now to
As is best shown in
Referring now to
Alternatively, the base 204 may be secured to the vehicle seat by means of Isofix latches 360, 362 positioned on opposite ends of a latch connecting belt 364 that is positioned on the housing 356. The latches 360, 362 are thus fixed to the base 204 and mate to Isofix bars, not shown, positioned behind the vehicle seat bottom, that are now required on many vehicles.
The latch connecting belt 364 is joined at its midpoint to a single latch tensioning belt 372 that extends along the length of the base 204. The latch tensioning belt 372 is positioned in a “A-lock” 374, a commonly-used lock-off device, positioned at the mid-point of the base 204 between the front and rear ends that permits the extension and retraction of the Isofix latches 360, 362 as needed to secure the base 204 of the seat 200 to the vehicle seat. The A-lock 374 is protected by a cover 375 and includes an A-lock button 376. The A-lock 374 includes a pivoted latch member, not shown, that bears against the latch tensioning belt 372 such that the latch tensioning belt 372 can be pulled for tightening the Isofix latches 360, 362, but will resist loosening of the tension on the latch tensioning belt 372. When tension must be released on the latch tensioning belt 372, depressing the button 376 releases the pivoted latch member so that the latch tensioning belt 372 will pass through the A-lock 374 towards the latch connecting belt 364.
The Isofix latches 360, 362 may thus be extended to provide sufficient slack to allow them be latched onto the Isofix bars behind the vehicle seat, and then retracted by pulling on the latch tensioning belt 372, thereby drawing the base 204 towards the vehicle seat. When released, the A-lock 374 maintains the latch tensioning belt 372 in the desired, tensioned position and thus secures the base 204 in the desired position.
The base 204 may optionally include a foot prop 150 substantially as shown as described in
An improved child safety seat is described above. Various details of the invention may be changed without departing from the scope of the invention. Furthermore, the foregoing description of the preferred embodiment of the invention and best mode for practicing the invention are provided for the purpose of illustration only and not for the purpose of limitation, the invention being defined by the claims.
Claims
1. A child safety seat, comprising
- (a) a carrier having a seat bottom and a seat back;
- (b) a base for receiving the carrier and for permitting the carrier and base to be secured to each other and as a unit to a vehicle seat;
- (c) a U-shaped carry handle attached to opposing lateral sides of the carrier and adapted for lifting and carrying the carrier, and further including a one-hand carry handle release, comprising: (i) first and second carry handle latches carried by respective first and second opposing ends of the handle and adapted to latch complementary first and second latch elements carried by the base; (ii) a connector extending from each of the latches along the handle to a handle grip positioned on the carry handle intermediate the first and second opposing ends of the handle; and (iii) a release assembly mounted in the carry handle proximate the handle grip and cooperating with the connector for releasing the carry handle latches from the complementary latch elements in the base upon manual operation of the release assembly to thereby detach the carrier from the base.
2. A child safety seat according to claim 1, wherein the release assembly includes a release lock and a release actuator for allowing the carrier to be detached from the base only upon operation of both the release lock and the release actuator.
3. A child safety seat according to claim 2, wherein:
- (a) the release actuator comprises the handle grip mounted for rotation about the longitudinal axis of the carry handle and cooperating with the connector to release the carry handle latches from the complementary latch elements in the base upon rotation of the handle grip, and
- (b) the release lock comprises a button positioned in an opening in the handle for normally interfering with rotation of the handle when the button is in an elevated position and allowing rotation of the handle when the button is in a depressed position.
4. A child safety seat according to claim 2, wherein the release actuator comprises a button positioned in a hole in the handle grip and cooperating with the connector to release the carry handle latches from the complementary latch elements in the base, the button including release assembly having a first movement wherein when the button is depressed into the hole out of interference with the handle grip and a second movement wherein the button is manually moved along the longitudinal axis of the carry handle to retract the connector and release the carry handle latches.
5. A child safety seat according to claim 1, wherein the carry handle latches comprise respective Isofix-type latches and the complementary latch elements in the base comprise respective bars positioned to receive the Isofix-type latches.
6. A child safety seat according to claim 1, wherein the carry handle includes first and second handle position locks carried in rotatably-mounted hubs on respective opposing ends of the carry handle and manually moveable from a normally-locked position wherein the carry handle is locked into a desired position in relation to the carrier to an unlocked position wherein the carry handle is permitted to rotate.
7. A child safety seat according to claim 1, wherein the release assembly comprises a button positioned in an access hole in the handle intermediate the carry handle latches and having a locked position in an interference relation with the access hole whereby the button prevents a slide positioned in the handle surrounding the button and access hole from moving, and an unlocked, depressed position whereby the button permits the slide to translate along the handle to acuate the the connector for releasing the carry handle latches from the complementary latch elements in the base.
8. A child safety seat according to claim 1, wherein the connector comprises a cable.
9. A child safety seat according to claim 1, wherein the connector comprises a cable and the release actuator comprises a rotating member that simultaneously pulls the cable of both the first and second carry handle latches towards the handle grip.
10. A child safety seat according to claim 1, wherein the first and second carry handle latches carried by respective first and second opposing ends of the handle are carried by respective first and second housings sized to fit into first and second complementary slots formed in the base, and within which respective latch elements are positioned for latching with the carry handle latches.
11. A child safety seat according to claim 7, wherein the release assembly comprises a button positioned in an access hole on a bottom surface of the handle.
12. A child safety seat according to claim 7, wherein the release assembly comprises a button positioned in an access hole on a top surface of the handle.
13. A child safety seat, comprising
- (a) a carrier having a molded plastic seat bottom and a seat back;
- (b) a molded plastic base for releasably receiving the carrier;
- (c) a U-shaped carry handle attached to opposing lateral sides of the carrier and adapted for securing the carrier and base to each other, and lifting and carrying the carrier, and further including a one-hand carry handle release, comprising: (i) first and second carry handle Isofix latches carried by respective first and second opposing ends of the handle and adapted to latch complementary first and second Isofix latch bars carried by the base; (ii) first and second connector cables extending from each of the Isofix latches along an interior void in the handle to a handle grip positioned on the carry handle intermediate the first and second opposing ends of the handle; and (iii) a release assembly, including an actuator button, mounted in the carry handle proximate the handle grip and cooperating with the connector cables for simultaneously releasing the carry handle both first and second Isofix latches from the complementary first and second Isofix latch bars in the base upon operation of the actuator button of the release assembly to thereby detach the carrier from the base.
14. A child safety seat according to claim 13, wherein the carry handle includes first and second handle position locks carried in rotatably-mounted hubs on respective opposing ends of the carry handle and manually moveable from a normally-locked position wherein the carry handle is locked into a desired position in relation to the carrier to an unlocked position wherein the carry handle is permitted to rotate.
Type: Application
Filed: Feb 22, 2007
Publication Date: Mar 20, 2008
Applicant: BRITAX CHILD SAFETY, INC. (Charlotte, NC)
Inventors: Hans Ohren (Fort Mill, SC), Phillip Przybylo (Waxhaw, NC), Benjamin Bustle (Charlotte, NC), Jerry Campbell (Rock Hill, SC), W. Jake Kozlowski (Tega Cay, SC), Dieter Maier (Giengen a.d. Brenz), Adrian Batchelor (Berkshire), Paul Brindley (Wiltshire), Troy Mason (Brownsburg, IN), Andrew Mendenhall (Mooresville, IN)
Application Number: 11/677,662
International Classification: B60N 2/26 (20060101);