Locking device for child seat

Details Locking device for child seat Locking device for child seat

1999-09-07

2001-05-01

Sakran, Victor N. (Department: 3626)

Buckles, buttons, clasps, etc.

Separable-fastener or required component thereof

Including member having distinct formations and mating...

C024S11500R, C024S13400L, C024S634000

Reexamination Certificate

active

06223403

ABSTRACT:

BACKGROUND OF THE INVENTION AND RELATED ART STATEMENT
The present invention relates to a locking device for fixing a child seat to a vehicle seat by a webbing of a seat belt device and, more particularly, to a locking device employing a clamping roller for clamping the webbing of the seat belt device.
For mounting a child seat on a vehicle seat, the child seat is normally fixed by a webbing of a seat belt device for an adult occupant. Disclosed in GB 2288202A is a locking device employing a clamping roller for clamping the webbing. The clamping roller is provided with serrations or projections around the outer periphery thereof which extend parallel to the axis of the roller. A shoulder webbing of the seat belt device can be clamped between the roller and stepped surfaces confronting the roller.
For clamping the shoulder webbing of the seat belt device by the clamping roller, the axial direction of the clamping roller should be substantially perpendicular to the longitudinal direction of the webbing. The shoulder webbing is arranged to extend upwardly diagonally from the right side to the left side or from the left side to the right side along the seat back of the seat. That is, one end of the shoulder belt is connected to a tongue engaging a buckle which is arranged at a middle of a vehicle body, and the other end of the shoulder belt is hooked at an upper portion of a pillar of the vehicle body. Therefore, in case of a left-side seat of the vehicle, the shoulder webbing extends upwardly diagonally from the right side to the left side. On the other hand, in case of a right-side of the vehicle, the shoulder webbing extends upwardly diagonally from the left side to the right side.
In GB 2288202A, two clamping units are used which are a left-side clamping unit for locking the shoulder webbing of the left-side seat, and a right-side clamping unit for locking the shoulder webbing of the right-side seat.
It is an object of the present invention to provide a locking device for a child seat, which can clamp a shoulder belt on either the left-side seat or the right-side seat by means of one clamping roller.
SUMMARY OF THE INVENTION
A locking device for a child seat of the present invention is designed for securing a child seat on a vehicle seat by means of a webbing of a vehicle seat belt device. The locking device comprises a clamping roller for clamping the webbing, and presser faces for cooperating with the clamping roller to clamp the webbing. The clamping roller is disposed so that its axis extends in the vertical direction, and is capable of being tilted between a right tilt position where it is tilted toward the right of the child seat and a left tilt position where it is tilted toward the left of the child seat. The presser faces include a first presser face which confronts the clamping roller when the clamping roller is in the right tilt position, and a second presser face which confronts the clamping roller when the clamping roller is in the left tilt position.
In the locking device of the present invention, the clamping roller can be tilted toward the right or left of the child seat, so that only one clamping roller can clamp both shoulder webbings on the right and left vehicle seats.
It is preferable that the locking device further comprises a knob for tilting the clamping roller in either tilt position.
The locking device may comprise positioning means for holding the clamping roller at either the left tilt position, the right tilt position, or a neutral position where the clamping roller is set.
According to the present invention, the locking device may comprise a clamp base on which a spring, as the positioning means, is provided. The presser faces may be provided in a concave portion formed in a base back of the child seat, and the clamp base may be installed to the base back to face the concave portion.


REFERENCES:
patent: Re. 0015290 (1922-02-01), Kemper et al.
patent: Re. 0032448 (1987-06-01), Anderson
patent: 1959722 (1934-05-01), Lackner
patent: 3146754 (1964-09-01), Ohnsman
patent: 0094525 (1989-03-01), None
patent: 8901746 (1989-03-01), None

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