4.) a bicycle - for two-forces
This tandem single version has a slightly stretched frame construction, to which a second leaning saddle can be put on.
The extended beyond the pedal point here lever arms are operated by the second driver via attachable pedals. These double-sided lever arms are
therefore a fixed wheel inventory.
For single tours, the second pedals and the second saddle can simply stay at home.
In pair operation, a harmonious and perfect division of labor is possible with independent gear selection.
This opens up the development and market consolidation to a creative lightweight tandem single-bike!
The outfit would remain the concrete design result of the respective bicycle manufacturer.
5.) In heat and rain
Who likes to ride a bike in the rain or in high heat? Hardly anyone !
The fact is, our city, cargo and touring bicycles only offer high driving comfort every day if they protect us from wet or direct sunlight. An
attachable protective roof would encourage you to leave the car more often in the garage. Maybe some people change to a bike.
A horizontal weather protection roof protects against the sun and rain. On the other hand, as a photovoltaic foil stretched on the aluminum roof frame or as a roller blind, it
also supplies a considerable part of the drive energy.
The electricity generated on the roof is fed into the solar battery integrated in the bike frame (InTube). The approx. 150 / W PV foil ** harvests daylight electricity all
day long, even in diffuse weather conditions.
The approximately 1.1 m² roof generates about the energy of a medium-long driving distance.
The lightweight, removable roof is wind-slippery; because even changing winds are actually flat. In a longer test phase, I drove such a problem - even with strong gusts of wind.
For retrofitting such a roof - behind the saddle-backrest or on the handlebars clickable - always a profit.
The four roof corners optionally contain the flashing lights of a turn signal. The lights supplied by the battery should - due to the dangers in today's traffic density - be
supplemented by a brake light. The reliable on / off switching of the night lighting should be done by a twilight sensor.
The ~ 60 x 180 cm large roof can be moved about 60 cm forward in the rain and ensures that everything stays dry.
A wind- and visibility-permeable net-store protects against rain as well as from strong lateral sun. If necessary, it is fastened to the roof frame by means of Velcro. The store
has a lead band at the lower hem and hangs sufficiently low at about 55 cm. Frame and foil can roll u./od. be constructed foldable.
Sporty cyclists might also like this top hatch without electric drive (covered with Perlon fabric instead of PV foil, it only weighs about 700g) ***.
8.) Hand saver
In order to avoid the usual micro-traumata in the wrist, a cylindrical, elastomeric pipe plug connection could be embedded in the steering handles or their transitions to the
steering handle ever to shock mitigation. This stiff-elastic bridge could be different on the weight of a person to be available or different, deeply embedded.
6.) The small cargo
The area behind the sloping backrest provides space for luggage or even for one or two child seats.
Also conceivable would be a lightweight, removable and lockable expanded metal basket with hinged lid, which can be pushed after shopping like a travel case on four castors, with
a light hand. This basket could also be made of plaited willow as a practical 4-wheel trolley.
The child seats would be attached with the same click fastener; they might have a pair of wheels located on both sides of the seat and a guide handle which can be pulled out of
the backrest. So the seat would a buggy after the ride to the children.
On the steering shaft is e.g. the KLICKfix carrier is ideal - luggage stays centered on it.
6.a) fahrRad or e-bike with a heavy-duty trailer
This is a low loader trailer which is steered via the bike or fahrRAD. It provides CO²-free delivery services, possibly also taxi services, and is especially
designed for today's climate.
This 2.9 m long trailer travels on a 125 cm wide track and weighs approx. 115 kg, witha load of 800 kg.
Right behind the drawbar, which can be raised, two 35 cm large twin wheels – with their turntable base to the load space – take some load off the bike - fahrRAD.
The freight weight is distributed over eight wheels including two 60 cm twin rear wheels.
Four synchonized recuperation hub drives take care of the idle as well as the load operation. Their performance is designed for a maximum moving load of 900 kg. The energy
recovered from the movement is optimally kept in high-performance storage capacitor banks for subsequent start-up - that are still to be developed (possibly
The motor also has a 3 km/h reverse gear and a 5 km/h first gear for manual tiller control. Four rim brakes synchronized with the recuperation system allow a speed of 25 km/h
at full load – up to 45 km/h with no or partial load.
Instead of a rear-view mirror, the trailer has a rear camera; this shows the driver what is going on behind.
The extra deep and 3.6 m² large loading area consists of 16 mm plywood. The spring suspension takes place via 10 compression springs that connect the frame to the loading
With a center distance of 1.8 m, 27 cm of high ground clearance, the eight wheels and its 125 cm wide track, the chassis - despite being 170 cm high - offers stability against
cross winds. The side tarpaulins remain rolled up in strong winds and low freight weight. The structure also offers space for 3 product pallets.
The trailer is bridged in a U shape with the 1.7 m high roof frame made of large-mesh welded mesh. It offers a 6 m³ large loading space. Everything is covered with a solar
fabric film (e.g. made by manufacturers Alwitra or Heliotek). The cargo is also protected from the side by tarpaulins. They are opened or closed by means of
special e-roller blinds and at the same time they pull the zip fastener on the sides. In addition, the load is secured with tension belts. This covering provides sufficient
energy via its 12 m² photovoltaic surface - even when it is cloudy.
Batteries are accommodated in the chassis of the trailer for long transport routes; they are inserted into their own subjects there. These batteries provide sufficient travel
reserves and are recharged with a cable.
With the future-developed autonomous drive software, a much longer vehicle of this type can be used as another means of public transport!
6.b) This trailer can become a family carriage or a comfortable camping tent:
The carriage (or the taxi) has up to 4 plug-in seats for passengers - 2 to 3 people each. They are made of felt-covered, light plywood seats on a metal frame. With three rows
of seats, the trailer still has space for 1 or 2 pushchairs. You can enter from both sides; there is a 1 x 0.6 m window on the front and rear; The PV tarpaulins on the side
also provide an all-round view for a maximum of 12 people during a journey thanks to integrated windows made of film.
On cold days, gentle quartz heaters provide warmth for the passengers.
The attachable side folding walls made of light multi-wall sheets result in a 12.4 m² living / sleeping level for when in tent mode. When the walls are opened, the tent opens,
with four arching clips opening at the same time. Then adjust the four corner supports - done!
Now everywhere is a nice camping lot or a free parking space! With its own electricity, solar ink and of course with an organic composting toilet, the wide world can now be
traveled even on a budget.
I can offer additional solutions to detailed questions for startups who want to implement this.
Every e-bike with 500 W power can be coupled up to this trailer. Either as a trailer, or as a carriage for the whole family
or for urban or rural delivery services and taxis - this "packhorse" facilitates emission-free transport services based on independent companies.
7.) Airless tire?
My idea of a new type of tires made of harder rubber compound requires neither the usual rim bead wire nor fabric inserts, neither a hose nor internal air overpressure. These
types of tires already spring through their thick-walled hard rubber cross-section profile (see drawing). In the case of higher loads, these tires can still inflate
accordingly. The extra-deep loading area and large disc brakes allow a top speed of 25 km / h.
In addition, a small-finger, medium rolling bead offers the perfect minimized rolling resistance. The sideways, wide, on Gripp optimized, wide auxiliary beads roll only in an
inclined position in contact with the ground. Inflating and "patching pecking" are eliminated in this nock-resistant model.
For tire mounting, these bike tires have a two-piece "screw-on rim", which ensures a perfect and form-fitting tire seat.
And on top of that, the wire and fabric-free material is unproblematic in recycling and recyclable as granules!