In various kinds of vehicles, it may be desirable to provide restraint systems that can be used to secure a passenger to the seat while the vehicle is in motion. Some such systems may provide adjustability to accommodate passengers of various sizes. However, some conventional adjustable restraint systems, particularly those that are already integrated into a vehicle seat, may not be suitable for very small passengers such as small children. It may be preferable in such instances to provide a restraint system that is more specially tailored to accommodate small children. An example of such a system may be found in a child car seat that may be removably secured to a larger seat that is integral with the vehicle. After a small child has been transported in the removable car seat, the removable car seat may be removed in order to enable the integral vehicle seat to again accommodate a larger passenger. In some settings it may be desirable to integrate restraint systems for passengers of sizes ranging from very small children to large adults into a single seat, eliminating the need for an additional removable seat. It may also be desirable to maximize ease of adjustment in such restraint systems without sacrificing safety or integrity of the restraint systems.
Examples of integral restraint systems for various vehicles may be found in the following patent references, the disclosure of each of which is incorporated by reference herein: U.S. Pat. No. 8,061,781, entitled “Configurable Restraint System for a Vehicle Seat,” issued Nov. 22, 2011; U.S. Pat. No. 7,144,085, entitled “Passenger Restraint System,” issued Dec. 5, 2006; U.S. Pat. No. 7,040,696, entitled “System of Seats for a Vehicle,” issued May 9, 2006; U.S. Pat. No. 7,029,067, entitled “Vehicle Seat Including an Integrated Child Seat,” issued Apr. 18, 2006; U.S. Pat. No. 6,886,889, entitled “Restraint System for a Vehicle,” issued May 3, 2005; U.S. Pat. No. 6,508,515, entitled “Restraint System for a School Bus Seat,” issued Jan. 21, 2003; U.S. Pat. No. 6,485,098, entitled “Restraint System for a School Bus Seat,” issued Nov. 26, 2002; U.S. Pat. No. 6,123,388, entitled “Restraint System for a School Bus,” issued Sep. 26, 2000;
While a variety of child restraint devices have been made and used, it is believed that no one prior to the inventor(s) has made or used an invention as described herein.
It is believed the present invention will be better understood from the following description of certain examples taken in conjunction with the accompanying drawings, in which like reference numerals identify the same elements and in which:
The drawings are not intended to be limiting in any way, and it is contemplated that various embodiments of the invention may be carried out in a variety of other ways, including those not necessarily depicted in the drawings. The accompanying drawings incorporated in and forming a part of the specification illustrate several aspects of the present invention, and together with the description serve to explain the principles of the invention; it being understood, however, that this invention is not limited to the precise arrangements shown.
The following description of certain examples of the invention should not be used to limit the scope of the present invention. Other examples, features, aspects, embodiments, and advantages of the invention will become apparent to those skilled in the art from the following description, which is by way of illustration, one of the best modes contemplated for carrying out the invention. As will be realized, the invention is capable of other different and obvious aspects, all without departing from the invention. Accordingly, the drawings and descriptions should be regarded as illustrative in nature and not restrictive.
The following examples are provided in the context of a seat (10) in a school bus. However, it should be understood that the below teachings may be readily applied in the context of numerous other kinds of vehicles. By way of the example only, the following teachings may be readily incorporated into a seat on a school bus, a public transportation bus, a charter bus, trucks of various sizes, a sedan or other type of automobile, a boat, an airplane, etc. Various other suitable contexts in which the following teachings may be applied will be apparent to those of ordinary skill in the art in view of the teachings herein. It should also be understood that seat (10) may be sized and configured such that it may be retrofitted as a replacement seat in a vehicle without having to alter other components of the vehicle. For instance, some versions of seat (10) may have dimensions comparable to the dimensions of a conventional bus seat, such that seat (10) may be used to replace a conventional bus seat without changing the spacing between the replaced seat and surrounding seats/structures (e.g., maintaining compliance with minimum knee spacing requirements, etc.). This may include seat (10) having a front-to-back thickness that is substantially uniform along the height of the upright seat back.
Child seat assembly (100) is fixedly secured to frame (20) in a modular fashion. In other words, the relationship between child seat assembly (100) and frame in the present example enables ready selection and installation/replacement of different kinds of child seat assemblies (100) in frame (20) based on needs or preferences. Variations of child seat assembly (100) that may together form a pool of child seat assembly (100) types to choose from will be described in greater detail below; while still other variations will be apparent to those of ordinary skill in the art in view of the teachings herein. In some versions, child seat assembly (100) is secured to frame (20) with just two bolts. Various suitable ways in which child seat assembly (100) may be secured to frame (20) will be apparent to those of ordinary skill in the art in view of the teachings herein.
Child seat assembly (100) includes a pair of conventional seat belts (16), each having a sliding buckle tongue (17), and a pair of anchored buckles (18) that are configured to selectively engage tongues (17). Anchored buckles (18) may be configured similar to various kinds of conventional seat belt buckles. When coupled with buckle (18), seat belt (16) may fit horizontally over the lap of a passenger and diagonally across the torso of the passenger. Seat belt (16) may be formed of a conventional seat belt webbing material. In the present example, the lower end of seat belt (16) is fixedly anchored within child seat assembly (100); while the upper end of seat belt (16) is engaged with a conventional retractor (not shown) that is integrated into child seat assembly (100). Seat belts (16) and buckles (18) are configured to secure passengers of various sizes to bus seat (10), including children and adults. In some other versions, child seat assembly (100) has only one seat belt (16) and buckle (18). In still other versions, seat belt (16) and buckle (18) are omitted altogether.
As best seen in
While the following features of child seat assembly (100) are described as being suitable for use in securing relatively small children to bus seat (10), there may be children (e.g., newborn infants, etc.) who are even too small to secure using the restraint features described below. Such children may need to be transported in a conventional removable child car seat. Such a child car seat may be secured to bus seat (10) using seat belt (16) and buckle (18) in accordance with instructions from the manufacturer of the car seat. Alternatively, some versions of child seat assembly (100) may include LATCH (Lower Anchors and Tethers for Children) anchors (19) as best seen in
As shown in
As shown in
Harness (120) includes a right tongue slider (140) and a left tongue slider (140), as well as a right sternum latch member (144) and a left sternum latch member (146). Harness (120) forms a right lap belt portion (122) between base (180) and right tongue slider (140); and a left lap belt portion (132) between base (180) and left tongue slider (146). Harness (120) also forms a right torso belt portion (124) between right tongue slider (140) and right sternum latch member (144); and a left torso belt portion (134) between left tongue slider (142) and left sternum latch member (146). In addition, harness (120) forms a right shoulder belt portion (126) between right sternum latch member (144) and a right upper slider (156); and a left shoulder belt portion (136) between left sternum latch member (146) and a left upper slider (156). As shown in
As best seen in FIGS. 5 and 7-8, harness (120) is secured to base webbing (150) via upper sliders (156). While base webbing (150) will be described in the singular below, it should be understood that both base webbings (150) are configured identically in the present example. Base webbing (150) is formed of a conventional seat belt material. As best seen in
The upper free end of base webbing (150) is passed through parallel slots formed in upper anchor member (154), then through a passage formed through guard member (158), and is then sewn to an adjacent region of base webbing (150), thereby securing base webbing (150) to a central cross-bar of upper anchor member (154) and to a rear portion of guard member (158). Upper anchor member (154) is positioned behind back plate (194), thereby preventing the upper end of base webbing (150) from being pulled free from back plate (194). Thus, anchor members (152, 154) together cooperate with back plate (194) to secure base webbing (150) within child seat assembly (100). Various other suitable ways in which base webbing (150) may be secured within child seat assembly (100) will be apparent to those of ordinary skill in the art in view of the teachings herein. In the present example, anchor members (152, 154) are spaced to hold base webbing (150) with a generally taut tension, yet with enough slack to permit upper slider (156) to slide along base webbing (150).
Base webbing (150) passes through three slots (147, 148, 149) formed in upper slider (156), with two of the slots (147, 149) being oriented along generally horizontal planes and the other slot (148) being oriented along a generally vertical plane. As best seen in
Harness (120) also passes through guard members (158) and then through adjustment assembly (170) before terminating in free ends (128, 138). As best seen in
Frame (174) includes recesses that provide ready access to levers (175) from the front side of frame (174). In some versions, frame (174) is padded with foam or some other material, though this is merely optional. It should be understood that the above-described configuration of adjustment assembly (170) may provide relatively easy adjustment of harness (120) with a relatively low amount of frictional resistance during adjustment. Furthermore, positioning adjustment assembly (170) at or above the shoulder level instead of some other location (e.g., at the bight of the seat (10), where the seat back joins the bottom seat support) may help minimize the overall thickness of the seat back. It should also be understood that one or more components of adjustment assembly (170) may be configured in accordance with at least some of the teachings of U.S. Pat. No. 4,660,889, entitled “Harness Web Adjuster with Child Restraint Seat,” issued Apr. 28, 1987, the disclosure of which is incorporated by reference herein; and/or in accordance with the teachings of various other patent references cited herein. Various other suitable ways in which adjustment assembly (170) may be configured and operable will be apparent to those of ordinary skill in the art in view of the teachings herein.
As noted above, each base webbing (150) passes through a passage in a respective guard member (158) and is secured to the respective guard member (158). As shown in
Guard members (158) of the present example are configured to substantially prevent a passenger's hair or clothing (or a user's hair or clothing) from getting caught in adjustment assembly (170) during adjustment of harness (120). For instance, when a passenger is being released from harness (120) as will be described in greater detail below, a user may lift up on lever (175) to disengage teeth (176) from harness (120) and may then pull on shoulder belt portions (126, 136) to create slack in harness (120). This causes free ends (128, 138) to travel upwardly toward adjustment assembly (170). When the passenger or user (e.g., an adult releasing a child from bus seat (10)) has long hair or clothing that may be captured in adjustment assembly (170), static and/or a structural feature of free end (128, 138) may catch the hair or clothing on free end (128, 138), which may in turn cause the hair or clothing to be pulled upwardly toward adjustment assembly (170). In the present example, the hair or clothing would reach guard member (158) before reaching adjustment assembly (170), and guard member (158) may sweep the hair or clothing away from free end (128, 138) before the hair or clothing can reach adjustment assembly (170). This sweeping action may be provided by the fit between harness (120), base webbing (150), and guard member (158); by the curved shape of the lower edge of guard member (158); and/or otherwise.
In the present example, free ends (128, 138) of harness (120) each include an integral sewn loop that provides increased thickness. This increased thickness substantially reduces the likelihood of free ends (128, 138) being completely pulled through guard members (158) (e.g., when a user pulls shoulder belt portions (136, 146) while holding levers (175) up). Alternatively, free ends (128, 138) may have any other suitable configurations, features, or properties. Similarly, other suitable configurations and positions for guard member (158) will be apparent to those of ordinary skill in the art in view of the teachings herein.
At this stage, a child may be sat on panel (104), with the child straddling crotch belt (110). The child's right arm may be passed through harness (120) between right shoulder belt portion (126) and right lap belt portion (122). Then the child's left arm may be passed through harness (120) between left shoulder belt portion (136) and left lap belt portion (132). Next, tongues (141, 143) may be inserted in buckle (112) and be secured therein. Sternum latch members (144, 146) may then be snapped together. The user may then pull on each free end (128, 138) to tighten harness (120) against the child. The user may then slide sliders (156) downwardly until they are positioned at about the same height as the child's shoulders. The user may also slide sternum latch members (144, 146) until the upper edge defined by the sternum latch members (144, 146) is at approximately the same height as the child's armpits. It should be understood that the user may make an initial adjustment of harness (120) tension by pulling on free ends (128, 138), then adjust the positions of sliders (156) and sternum latch members (144, 146), then make a subsequent adjustment of harness (120) tension by pulling on free ends (128, 138) again, and repeating this process until a desired positioning and tension are achieved. In some instances, harness (120) may be tightened just to a point where it is difficult for the user to pinch more than an inch of the webbing of harness near the child's shoulder; or to the point where the user is able to just fit a finger between harness (120) and the child's shoulder.
To remove a child from child seat assembly (100), the user may first lift levers (175) and pull on shoulder belt portions (128, 136) to create slack and length in the region of harness (120) between guard members (158) and panel (104). This will draw free ends (128, 138) toward corresponding guard members (158). To the extent that the user's hair/clothing and/or the passenger's hair/clothing is pulled with free ends (128, 138), guard members (158) will effectively wipe the hair/clothing away and prevent the hair/clothing from entering adjustment assembly (170). The user may then decouple sternum latch members (144, 146) from each other and disengage tongues (141, 143) from buckle (112). The child may then be removed from or otherwise freely exit child seat assembly (100). If desired, panels (102, 104) may then be unfolded and pivoted to the generally upright position shown in
It is contemplated that various components described above may be modified in numerous ways. For instance,
Having shown and described various embodiments of the present invention, further adaptations of the methods and systems described herein may be accomplished by appropriate modifications by one of ordinary skill in the art without departing from the scope of the present invention. Several of such potential modifications have been mentioned, and others will be apparent to those skilled in the art. For instance, the examples, embodiments, geometrics, materials, dimensions, ratios, steps, and the like discussed above are illustrative and are not required. Accordingly, the scope of the present invention should be considered in terms of any claims that may be presented and is understood not to be limited to the details of structure and operation shown and described in the specification and drawings.
This application claims priority to U.S. Provisional Patent Application Ser. No. 61/511,370, entitled “Integrated Child Restraint Adjust System,” filed Jul. 25, 2011, the disclosure of which is incorporated by reference herein.
Number | Date | Country | |
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61511370 | Jul 2011 | US |