Safety Belt Connector Cover

This invention relates to accessories for safety belts in motor vehicles, such as automobiles, and more particularly to a cover for the connector anchoring a lock-carrying part of the belt to the vehicle floor.

Safety belt systems have been developed in order to reduce the number of fatalities and serious injuries resulting from motor vehicle accidents. Most of these systems include a belt connector having one end anchored to the vehicle floor and the other end provided with a buckle adapted to coact with the tongue of a seat belt assembly similarly secured to the vehicle. The connector generally comprises a plastic boot housing a webbing joining the buckle to an anchor on the vehicle floor. Such connectors are costly to form and assemble. In addition, they are large, bulky structures that decrease the seating space available for vehicle passengers. Connectors constructed of cable or metal strips have been proposed. Such metal connectors are uncomfortably cold in the winter and dangerously hot in the summer. They are aesthetically unattractive, and provide relatively hard objects within the vehicle passenger compartment that can tear packages, rip clothes and injure occupants present therein. As a result, safety belt connectors of the type described involve problems of cost, comfort, configuration and safety which have not yet been overcome.

The present invention provides a safety belt connector that is smaller, aesthetically more attractive, less expensive to manufacture, more comfortable to wear and safer to use than safety belt connectors of the type disclosed above. The connector has an elongated means composed of a metal plate. A first terminus of the elongated means is adapted to be secured to the vehicle. The elongated means has a second terminus adapted to fixedly support a first fastening means for receiving the tongue of a seat belt. Substantially the entire exterior surface of said elongated means is coated with a cover means composed of plastic material.

The safety belt connector of this invention has advantageous structural features. The metal plate is less expensive to fabricate and both smaller and stronger than boot-packaged web-anchor assemblies. Problems of temperature fluctuation presented by metal connectors are eliminated. An aesthetically attractive, relatively soft plastic coating decreases temperature variance on the exterior surface of the connector and prevents torn packages, ripped clothes and injuries to vehicle occupants. As a result, the safety belt connector of this invention is far more attractive in terms of its size, cost, comfort, safety and appearance than previous safety belt connectors.

The invention will be more fully understood and further advantages will become apparent when reference is made to the following detailed description of the accompanying drawings in which:

FIG. 1 is a side view, partly broken away of a safety belt connector;

FIG. 2 is a section taken through line 2--2 of FIG. 1;

FIG. 3 is a side view partly in section of a safety belt connector the section showing a chamber adapted to cover an end thereof;

FIG. 4 is a side view, partly broken away of an alternate embodiment of the safety belt connector shown in FIG. 1.

Referring to FIGS. 1 and 2 of the drawings, there is illustrated a preferred form of safety belt connector incorporating the present invention. Other forms of safety belt connectors can also be used, the safety belt connector, shown generally at 10, should therefore be interpreted as illustrative and not in a limiting sense. As illustrated, the safety belt connector 10 has an elongated means 12 composed of a metal plate. A first terminus 14 of the elongated means 12 is adapted to be secured to the vehicle (not shown). The elongated means 12 has a second terminus 16 adapted to fixedly support a first fastening means 18 for receiving the tongue of a seat belt (not shown). A major portion of the exterior surface of the elongated means 12 is coated with a cover means 20 composed of plastic material.

The safety belt connector 10 is generally disposed in the vehicle with first terminus 14 secured to the vehicle floor by suitable mechanical fasteners such as bolts or the like. Elongated means 12 extends in an upward-forward direction from the vehicle floor, the extension being a sufficient length that the second terminus 16 is located slightly above the bottom portion of the front seat. The first fastening means 18 is fixedly mounted on the second terminus 16 by rivets 22 or the like. Such fastening means 18 can be a buckle mechanism of conventional construction and is generally comprised of a housing having an opening 24 into which a coupling member such as a tongue (not shown), fixed to a seat belt anchored to the vehicle is adapted to be inserted. Insertion of the coupling member automatically effects locking engagement between the coupling member and the fastening means 18. A release mechanism (not shown) is provided in the first fastening means 18 so that the connection can be quickly released by pushing a button 26 or other suitable means. Alternatively, the first fastening means 18 can comprise a seat belt tongue adapted to engage a buckle mechanism, the buckle mechanism to be attached to the seat belt.

Elongated means 12 is adapted to be routed between the bottom and back portions of a bench-type seat so that the first fastening means 18 extends to the side of a vehicle occupant. The seat belt has sufficient length to extend about the occupant's waist and into locking engagement with the first fastening means 18. Although the seat belt can be a single strap adapted to be connected across the occupant's waist, it may also include a shoulder harness strap having one end anchored to the vehicle and the other end secured to the coupling member.

The cover means 20 can be any plastic material which is substantially non-flamable and will coat to the surface of the elongated means 12 so as to provide a continuous protective covering having a thickness of at least about 30 mils and preferably about 30 to 100 mils, and a hardness of less than 100 Shore A. Durometer. As used in this paragraph and elsewhere in the specification and claims the term "cover means" is intended to mean plastic coatings having the aforesaid thickness and hardness characteristics. Numerous thermoplastic and thermosetting resins having these characteristics are suitable. Typical plastic materials from which the cover means can be formed include nylon resins, acrylic resins, polyacrylates, polyolefins, polysulfones, polycarbonates, fluoropolymers, polyesters, polybutylene terephthalate, polyvinylchloride, polyvinylidene chloride and the like.

As shown in FIG. 3, the portion of elongated means 12 covered by cover means 20 can include the first terminus 14. In the embodiment shown, the cover means includes, as an integral part thereof, a chamber 28 having an open bottom 30 and a closed top 32. Mechanical fastener 34, securing first terminus 14 to the vehicle floor (not shown) extends through the open bottom 30 and into chamber 28. The latter provides the first terminus 14 and the fastener 34 with a protective covering which is aesthetically attractive and shields vehicle occupants from temperature fluctuations on the exterior surface of the fastener 34, including fluctuations provided by catalytic convertors of vehicle emission control systems, changing climatic conditions and the like. Chamber 28 can be provided with a plurality of apertures as in the order of about two to eight apertures each having a cross-sectional area of about 0.01 to 0.10 square inch. These apertures minimize temperature differential between the interior of the chamber 28 and the vehicle passenger compartment.

In FIG. 4 there is illustrated a safety belt connector adapted to service simultaneously a plurality of vehicle occupants. The safety belt connector, shown generally at 40, has, in addition to the components described above in connection with FIGS. 1-2, an elongated means including a third terminus 42 adapted for fixed engagement with one end of a seat belt web (not shown). The seat belt web is adapted to be connected across the waist of a vehicle occupant seated adjacent to an occupant being serviced by the fastening means 18 (shown in phantom) associated with second terminus 16. The other end of the seat belt web is connected to a seat belt buckle adapted to mate with a coupling member such as the tongue of a second web anchored to the vehicle. Alternatively, the other end of the seat belt web can be connected to a coupling member, such as a tongue, adapted to mate with a seat belt buckle fixedly secured to the vehicle via a safety belt connector of the type previously described in connection with FIGS. 1 and 2.

The safety belt connector 40 preferably includes a plurality of metal plates 44, 46. Plate 44 has a first terminus 14 and a second terminus 16 of the type described in connection with FIGS. 1 and 2. Plate 46 provides the third terminus 42 and, in addition, a fourth terminus 48 adapted to be secured to the vehicle in the same manner as the first terminus 14. Elongated means 12 has a central portion 50 connecting first terminus 14 and fourth terminus 48 with second terminus 16 and third terminus 42. The second terminus 16 is disposed at an angle from the central portion 50, the angle, .phi., ranging from about 30.degree. to 80.degree.. Third terminus 42 is similarly disposed at the angle .theta. of about 40.degree. to 90.degree. from central portion 50. The angular disposition, .alpha., between central portion 50 and each of first terminus 14 and fourth terminus 48 can range from about 10.degree. to 30.degree.. Each of metal plates 44, 46 can be die stamped from cold rolled plain carbon steel having an ultimate tensile strength of about 80,000 -120,000 pounds and an ultimate elongation of at least about 5 percent.

Cover means 20 is disposed about a major portion of the exterior surface of elongated means 12, as in the order of about 50 to 100 percent of the surface area thereof. Preferably, the cover means is disposed about and coats substantially the entire surface are of the elongated means 12. The coating comprising cover means 20 can be applied to the elongated means 12 by spraying, dipping or painting. In dipping the elongated means 12, an insert is temporarily connected to surface 52 of first terminus 14. Upon hardening of the plastic cover 20 the insert is removed to produce the hollow portion of the chamber 28.

In operation, the safety belt connector 10 is secured to the vehicle with the fastening means 18 located at hip level of a vehicle occupant seated therein. At this level the coupling member of a vehicle anchored safety belt (not shown) located near the other hip of the occupant can be conveniently passed across the waist and/or chest thereof to lockingly engage fastening means 18. Such an embodiment enables the coupling member to be secured in the fastening means 18 with one hand.

Having thus described the invention in rather full detail, it will be understood that these details need not be strictly adhered to but that various changes and modifications may suggest themselves to one skilled in the art, all falling within the scope of the present invention as defined by the subjoined claims.