Seat back frame and method of manufacturing the same

Abstract

A seat back frame of a vehicle using a magnesium alloy results in a seat back frame having the properties of a conventional steel press seat back frame. The seat back frame is reinforced regarding its strength and tapers from wider at the lower portion to thinner toward a head rest. The advantageous properties of the alloy seat, such as weight and castability, are much improved over the conventional. The method of molding such a seat back frame include molding the alloy into a mold via even disbursement about a casting gate.

Description

CROSS REFERENCE TO RELATED APPLICATION(S) [0001] The present application is based on, and claims priority to Korean Application No. 2004-0041231, filed on Jun. 7, 2004, the disclosure of which is hereby incorporated by reference. TECHNICAL FIELD OF THE INVENTION [0002] Generally, the present invention relates to a seat back frame of a vehicle. More particularly, the seat back frame is manufactured using a magnesium alloy and a method of manufacturing the same is also provided. BACKGROUND OF THE INVENTION [0003] In recent years, as vehicles have become more and more luxurious, the requirements for vehicles to comply with the traffic laws and safety regulations has increased, and vehicle owners' growing concerns on conveniences have increased the seats of vehicles have tended to increase in weight. Therefore, as a way to reduce the weight of a seat, seat back frames have been manufactured using light-weight materials instead of steels. [0004] More specifically, when seat back frames a...

AI Technical Summary

Benefits of technology

[0007] According to an embodiment of the present invention, a seat back frame of a vehicle is manufactured using a magnesium alloy. The magnesium alloy seat back frame has an improved mechanical strength by forming a reinforcing element with a U-shaped cross-section. The U-shaped cross-section is formed as an integral body that spans over the front side, as well as, both right and left sides of a frame housing the seat back frame. The front side of the frame is provided with a belt-shaped reinforcing element as an integral body. Thus, the seat is enabled to selectively install two different kinds of separable head rests and facilitates a relatively easy installation of any newly developed products.

Problems solved by technology

In recent years, as vehicles have become more and more luxurious, the requirements for vehicles to comply with the traffic laws and safety regulations has increased, and vehicle owners' growing concerns on conveniences have increased the seats of vehicles have tended to increase in weight.

Thereby, the manufacturer has been able to compensate the increased production cost resulting from using a rather expensive light-weighted material.

However, the physical properties of the magnesium alloy are inferior to those of steels, and thus ‘concept designs’ considering the above deficiency should be conducted.

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