7.4.22:
mobi`brakes/pad`types
pad# tire`tread
6.11.5: fender reuse
. with hinges, the fenders can be reused as rear.brakes
7.3.17: fender mod'
. each trailer`fender consists of a long`horizontal side,
and two slanted short sides;
remove one slanted side, and then attach the hor'side to the
brake
hinge,
with the remaining slanted, short side on the high end,
where a cable can be attached to it .
7.3.7: hinge# x-axis rotation
. fence`gate hinge would have it`s long plate bolted to the top of the
trailer`frame,
and then the wide plate would have square.tubing or angle iron
which would have on one side a brake pad applied to the tire tread;
and on the other side, a cable anchor .
7.2.7: hinged bar
. the surest engineering is a bar that spans from tire to tire,
and the bar is mounted under the frame, on levers
. it has pads that scrape the tires when the bar is pulled forward
...
. the bar can be thin if the cables that pull it are attached near the
levers
. the cables run along their respective sides of the boom,
either in sheathing or pulleys,
and then they go into twin vert'tubes
and are attached by a handle
. the driver pulls on the handle
more on one side more than the other
depending on which rear wheel seems to need the most stopping .
pad# road
6.12.20: kickstand
. rear kickstand at fork could dbl as a brake -- it's a 3rd back tire
in the center
. could be the spare .
7.2.11: center-rear
spare tire pull-down
. the gym`beams are strong enough to act like the triangulation needed
to apply brakes on the trailer`tires;
it would be far easier tho'
to use the same by putting the spare tire down
in the center rear area,
using the gym pivot and some pulleyed cable
. if arm movement is to control it, there needs to be much leverage;
and, arms are really the only option
when feet need to be strapped to pedals
. that leverage could come the same way as found by a parking brake
. the brake could also double as the bathroom`s kickstand,
aka, the 4th point that makes the trailer`frame stable
without concern for balanced weight distribution
.
. use the gym arm`s hinge as the brake when lifting up;
...
. as it's pulled up, a cable under the trailer`frame is pulleyed
forward;
and is connected to the tire which is pulleyed down
. the spare tire is mounted on the gym`pivot .
7.2.13: attaching the
spare
. unless buying another hub,
using the spare as brake will bend the rims,
unless the tire is held in a cup
so that forces are evenly on the rubber parts rather than the metal .
7.3.1:
. use a giant shim to keep the rim from warping
7.3.2:
. some of the very long gym`bolts may be useful for getting through the
shim .
7.2.24: z-axis
placement:
. a problem with having a rear brake on a 3rd back tire
is that unless it's alligned with the other back tires or behind them,
it will tend to raise the front wheel doing the steering
and reduce it`s ability to brake
. also, overly pressing down on the front wheel
could cause too much stress on the pivot`s connection with the boom .
pad# stock
7.1.5:
rear.brakes#trailer`stock
7.1.5:
. I should ask the trailer`s retailer if they have brakes for
that model
7.2.24:
. they don't ... and they can't,
because the axle they provided doesn't
have flanges on which to anchor brakes .
. call the trailer place for brakes that might fit their tires;
he didn't know anything about that but gave me the number to his
parts-ordering place [@] 1-800-444-3353
? do a web again to know what you're talking about
when you call:
google(trailer brakes):
. trailer disk brakes look promising ...
well,
had good clear spec's, but checking the details,
I find that all specs show I'd need 5-bolts or more:
causing replace of of hubs and wheels
. and finally, the fact that kills any plan to call the harbor freight`
parts place:
electric brakes need an axle that has a square flange:
why? look at how it works:
brakes need a place for attaching to both wheel and axle ! .
7.2.6:
. the mobi is likely classified as a bicycle
and there are bike laws about being able to make all the wheels skid on
dry pavement
. I should buy a new axle because this one has no flange for brakes .
7.2.9:
. buying a new axle with flanges is expensive,
and it's not easy to find a braking axle for the 4-bolt tires I have,
because systems large eno' to need brakes will also tend to use tires
that have more bolts .
. try quelling fears about being street-legal by calling police and
telling them what I'm up to,
and also resolving to drive slow and test brakes on current
conditions .
stock vs custom
6.12.21:
. next design for brakes on back tires
had in mind elongating the axle and having the bike thus ride on both
back tires at once
but then bogged down by mandate to stay with stock parts,
and decided that if I want to do something with auto`parts,
I should look beyond the wheels provided by trailer kits .
7.1.5:
. with the lockbox dbl'ing as fenders
or even if simply bolted in front of the trailer`wheels,
this is still a good place to anchor a rod having a foot on each wheel
. but that may create a problem with
getting the same stopping power to both sides of the trailer
though that isn't as important
for a trailer-trike
as it is for a hitched trailer
unless the torque is so strong that it sweeps the front wheel to the
side
--- that amound of power could catastrophically pretzel the front wheel
so,
the plan to ask for electric brakes is a good one,
but if they don't have electrics for this wheel type,
there is still the homemade centered road-pad,
like a foot coming down from the center of the axle
or there could be separate brakes for each back tire,
and you'd need 2 good hands to drive the thing (not always available!)
.
stock vs nothing
7.2.6:
drum.brakes are cheaper than disk.brakes, but either way I have to buy
a whole new axle
. perhaps rear`brakes could be nixed altogether depending on laws for
whatever type of vehicle I have
. the braking power they want on bikes is being able to skid to a stop
[with both tires]
7.2.9:
. buying a new axle with flanges is expensive,
and it's not easy to find a braking axle for the 4-bolt tires I have,
because systems large eno' to need brakes will also tend to use tires
that have more bolts .
. try quelling fears about being street-legal by calling police and
telling them what I'm up to,
and also resolving to drive slow and test brakes on current
conditions .
pad# regen
7.2.8:
. instead of friction-braking, a generator could be high-geared to slow
the wheels .
7.6.1:
. this could be applied to either tires bonded to chain.wheels,
or to a power.wheel drive (tank treads transmit motion to stock trailer
wheels) .
pad# sidewall
7.2.15: padded rod applied to
tire`sidewall
. apply a pad-ended rod on the side of the tire`side edge of the
trailer`frame
so that most of the pulling action is coming down on the frame
rather than other parts
. both rods are held in the center by a loop,
and then pulley'd cable or rope is forcing the rod by the looped end
. the pressure is equalized by having the strings meet in the middle
and are pulled by a cord attached by a pulley .
. to avoid messing up the side walls,
the tires could wear plastic chains all the time
modified to include sidewall pads;
however, this would require a very tight hold on the chains from a
ratchet
tightener .
pad# rim-side
7.3.8:
. press a rubber pad to the inside of the tire rims just like the bike
does
(I just noticed:)
. the rims have a near-hor' 1'' rim on the inside,
where a hinge attached to the [square bolts and plate] ass'y
could easily apply a pad there .
. that way it could wear normal ice chains too .
. the hinge can be bolted with the axle,
and with one side hanging so that the pad lands inside the rim
. caveats are that area tends to get greasy
and the hinge`s pivot was not designed to be stressed that way;
however, it'll be ok if reinforced with plate
(where the hinge`plate is merely the pad`s interface with the
hinge`joint
and then the pad has it's own strong backing)
. a more serious problem
is that the leverage must be proportionally greater
when the coeficient of friction is reduced
-- and these are steel rims:
you take the paint off for better traction
and things start rusting
. perhaps the best plan for this version is to have pads hit the tire
tread .
