ENERGY ABSORBING SEAT ADJUSTER
First Claim
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1. An energy absorbing device for adjustably mounting a seat in a vehicle body comprising:
- a first track member attached to the vehicle seat, a second track member attached to the vehicle body, the first and second track members being slidably interengaged to permit longitudinal fore and aft movement of the seat relative the vehicle body, means limiting vertical movement between the first and second track members, a friction shoe including a backing plate and a shearable friction lining mounted on the backing plate, means mounting the friction shoe on one of the track members to permit vertical movement of the friction shoe to frictionally engage the friction lining with the other track member while preventing longitudinal movement of the friction shoe relative the one track member, teeth means on the other track member being engaged by the friction lining, occupant actuable cam means effective to forcibly move the friction shoe vertically to frictionally engage the friction lining with the teeth means of the other track member to selectively lock the track members from movement relative one another and unlock the track member to permit fore and aft adjusting movement of the seat relative the vehicle body, the frictional engagement of the friction lining of the friction shoe against the teeth means of the other track member being oveRcome by kinetic impact energy to permit longitudinal movement between the track members and forced sliding of the friction lining against the other track member and shearing of the friction lining by the teeth means to absorb the kinetic impact energy.
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Abstract
A vehicle seat adjuster includes a first track member attached to the seat and a second track member attached to the vehicle body. The track members are slidably interengaged to permit longitudinal movement therebetween whereby the seat may be adjusted fore and aft. A friction shoe mounted on one of the tracks is vertically movable into frictional engagement with the other. An operating lever is attached to a cam which permits the seat occupant to move the friction shoe to selectively lock and unlock the seat for fore and aft adjusting movement. The force of kinetic impact energy overcomes the frictional engagement of the friction shoe against the other track of the seat adjuster to permit energy absorbing movement of the seat.
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Citations
1 Claim
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1. An energy absorbing device for adjustably mounting a seat in a vehicle body comprising:
- a first track member attached to the vehicle seat, a second track member attached to the vehicle body, the first and second track members being slidably interengaged to permit longitudinal fore and aft movement of the seat relative the vehicle body, means limiting vertical movement between the first and second track members, a friction shoe including a backing plate and a shearable friction lining mounted on the backing plate, means mounting the friction shoe on one of the track members to permit vertical movement of the friction shoe to frictionally engage the friction lining with the other track member while preventing longitudinal movement of the friction shoe relative the one track member, teeth means on the other track member being engaged by the friction lining, occupant actuable cam means effective to forcibly move the friction shoe vertically to frictionally engage the friction lining with the teeth means of the other track member to selectively lock the track members from movement relative one another and unlock the track member to permit fore and aft adjusting movement of the seat relative the vehicle body, the frictional engagement of the friction lining of the friction shoe against the teeth means of the other track member being oveRcome by kinetic impact energy to permit longitudinal movement between the track members and forced sliding of the friction lining against the other track member and shearing of the friction lining by the teeth means to absorb the kinetic impact energy.
Specification
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Current AssigneeHerbert A. Libkie, Norbert T. Okoniewski
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Original AssigneeHerbert A. Libkie, Norbert T. Okoniewski
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InventorsLibkie, Herbert A., Okoniewski, Norbert T.
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Primary Examiner(s)Parsons, Jr., Marion
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Application NumberUS05/368,606Time in Patent Office547 DaysField of Search248/429,430,420 297/216,386 188/1C 296/65A 280/15BUS Class Current248/429CPC Class CodesB60N 2/071 T-shapedB60N 2/0715 C or U-shapedB60N 2/08 characterised by the lockin...
