Impact absorbing steering apparatus

摘要

A structure is achieved in which two portions in the axial direction of a cable 38 for electric equipment by an energy-absorbing member 35 on an inner column 9a side and a cable support bracket 52 on an outer column 10a side, such that the cable 38 can be suppressed from becoming a resistance to forward displacement of a steering wheel during a secondary collision. The energy-absorbing member 35 has a support plate section 46, part of which displaces in the downward direction during a secondary collision. Part of the middle section of two portions of the cable 38 in the axial direction is supported by the support plate section 46. During a secondary collision, the middle section of the cable 38 displaces and is bent in the downward direction as the support plate section 46 deforms. As a result, the cable 38 is suppressed from tightening in the axial direction during a secondary collision.

主权项

1. An impact absorbing steering apparatus, comprising:
a steering column that has a front column that is located on a front side with its movement in a forward-backward direction regulated, and a rear column that is combined with a rear-end section of the front column so as to be able to displace in an axial direction thereof, and supports a steering shaft, to an end section of which a steering wheel can be fastened, so as to be able to rotate freely on an inside thereof; and an energy-absorbing member that comprises: a base plate section that is fastened to one column of either the front column or the rear column or to a portion that is fastened to the one column; a pressed plate section that is separated from or adjacent to the base plate section in the axial direction of the steering column and is indirectly or directly connected to the base plate section, and that is pressed by the other column of either the front column or the rear column or a portion that is fastened to the other column due to displacement in a forward direction of the rear column during a secondary collision; and a support plate section that is located along the steering column and is indirectly or directly connected to the pressed plate section, or both the base plate section and the pressed plate section, at least part of the support plate section displacing toward an outside in a radial direction of the steering column when the pressed plate section is pressed during a secondary collision; and part of the energy-absorbing member plastically deforming by the pressed plate section being pressed during a secondary collision, and absorbing impact energy that is applied to the rear column from the steering wheel, and the support plate section supporting one of two portions of a cable that is connected to electric equipment that is fastened to a rear end section of the rear column and is arranged in the forward-backward direction along the steering column, the two portions being separated in the axial direction of the steering column, and the rear column supporting the other of the two portions.