Sometimes when visiting our grandchildren we need to put a child seat in our B for our grandkids. Our youngest just turning 2 still rides in a child seat that is anchored by a lap belt but also needs a strap attachment to hold the upper part of the seat back. The solution for our Great West Van Legend and would probably work with other sofas with a middle lap belt was to buy two commercial grade carabiners (not the trinket stuff for keychains) and some steel strand plastic coated wire. Hardware stores sell various kinds cut to length desired. They can also loop each end with crimps at the store. The wire I bought said tested to 340 lbs. The two carabiners and made up end loop wire cost about $12 total. I attached the carbiners to the seat belt anchor tabs and then each end of the wire to the carabiners. Then I snapped the child seat backstrap to the wire and tightened it. The whole assembly is well beyond strength needed and goes back to seatbelt anchors.
Child Seat Anchor
Linear Mode
