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Old August 26th, 2016, 05:28 PM   #12
Armadillo
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Join Date: Apr 2008
Location: Chicago, Near the Lake
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All of the inline removable boot skates that I have aver seen are not an appealing form of footwear in which to be doing normal walking around.

This is why only quad skates have much chance of succeeding in the marketplace for this concept.

The Onwheelz system solves the two main issues of quick & easy ON-OFF process, and a comfortable athletic shoe that mostly LOOKS & WORKS like a normal shoe with hopefully not too much intrusion from the two per sole pair of embedded H/W latching mechanisms.

My concerns are centered on whether or not the way this design focuses a lot of tension on the sole embedded H/W, in a way that tends to rip it out incrementally over time, and whether or not are they going to hold up over time.

The engineering of things that must handle high force & medium/high frequency cyclical loading is a real bitch. The peel strength specs of even the most aggressively bonding urethane type glues, though rather high, may still not be adequate to stand up the the service demands of this design.

Depending on how well the sole socket engages with the latching H/W and can distribute the cyclical force that a serious, low stance skater will apply there, and whether the glue bond itself has to accept all the load, this is the critical concern that will determine the longevity and durability.

IMO, because of the current rather small socket sole area size into which the front H/W socket piece engages, it may not adequately distribute the cyclical forces over a broad enough portion of the sole forefoot. As a result the sole can be flexed downward from the developed leverage of the plate lean giving downward tension. The stiffer the suspension, the greater the level of tension on the forefoot H/W socket, and the resulting sole flex will tend to concentrate forces in a way that may see the H/W being incrementally pried out of the sole socket from progressive separation of glue bond.

Another concern is for how the resulting downward flex distortion of the sole, at the peak force point of the push, will compromise foot support under the ball of the foot. This could limit how far a skater could go before their foot starts to ache from this reduction of support.

Most of these concerns will only apply to the most serious and aggressive kinds of quad skaters, but I do think they are still valid concerns.

-Armadillo
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