Amphiped. Drawing, description

PERSONAL TRANSPORT: GROUND, WATER, AIR
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Amphiped. Personal transport

Personal transport: land, water, air

Directory / Personal transport: land, water, air

The family of water bicycles is diverse and numerous, but they all have a significant drawback: it is very difficult to transport them by land. Another thing is the amphiped, on land he feels as confident as on the water. The secret of such versatility is in its propulsion - the crankshaft with paddle wheels when traveling on the roads is the leading "front axle".

Making an amphiped is not that difficult. Start work by making the frame of the boat. Glue the frames from pine slats with a section of 15x35 mm, reinforce the joints with plywood scarves and screws. Cut the transom board from a sheet of plywood 12-15 mm thick. Its dimensions are 220x900 mm. For the longitudinal set of the body, prepare four rails with a section of 20x20 mm, two - with a section of 15x35 mm and one - 35x35 mm. The length of each rail is 2000 mm. For the keel, in addition, you will need a bar 15x35x1330 mm.

A few days before the assembly of the frame, the blank for the keel beam (section 35X35 mm) should be soaked in water (for two days), and then fixed on a slipway - a board about 40 mm thick. The deflection of the beam must correspond to the configuration of the bottom. After drying for two to three days, the workpiece is installed on a flat horizontal platform and fixed with small nails. Mark the location of the frames with a colored pencil or felt-tip pen and cut grooves in the designated places. Install the elements of the transverse set on the keel bar and temporarily fix them on it. Further, in the corners of the frames and the transom board, make grooves for the rails of the longitudinal set.

The frame is assembled using polyvinyl acetate or casein glue and screws. When assembling, carefully check the relative position of the elements of the longitudinal and transverse sets, avoiding distortions. The remaining longitudinal elements of the set are adjusted in place, that is, the rail is applied to the frames, its position on them is noted, and then grooves are cut.

After stripping the frame, sheathe it with plywood or hardboard. Start from the bottom. Attach a blank to it (4x1000x2000 mm), outline along the frame with an allowance of 3-5 mm per side and cut it off. Next, grease the mating surfaces with glue, lay the skin on the frame and, starting from the transom, nail it to the parts of the set with nails about 20 mm long. When the glue dries, carefully work out the contours of the sheet with a planer.

Rice. 1. Three-wheeled amphibian (click to enlarge): 1 - swivel assembly, 2 - seat, 3 - steering wheel, 4 - amphibian drive wheel, 5 - body, 6 - crankshaft, 7 - steering cables, 8 - steering drum

Rice. 2. Steering device (click to enlarge): 1 - steering wheel, 2 - steering shaft, 3 - cotter pin with washer 4 - bracket, steering bearing (S3 steel), 5 - central support bearing, 6 - support, 7 - keel bar , 8 - bottom lining

Sheathe the sides and deck in the same way. Carefully process the joints from the outside and level from the inside with epoxy putty. Along the outer contours, it is useful to additionally cover the boat with a fabric in one layer. It can be glued with any resin, including parquet varnish, as well as paints of the GF and PF brands.

Now let's take up the rowing mechanism. It includes a crankshaft bent from a steel bar Ø 12-14 mm, two bicycle wheels (we recommend using the front wheels of Shkolnik or Kama bicycles) and two paddle wheels assembled from six plywood (10 mm thick) or duralumin ( 3 mm thick) plates each. Rowing plate dimensions 150X250 mm. Fastening it to the wheel rim with duralumin corners and pints with a countersunk head. In the center, the rowing plates are assembled using a figured duralumin plate 2 mm thick.

Mount the crankshaft support bearing on a trapezoidal wooden block 35 mm thick, sheathed on both sides with 4 mm plywood. Screw the steering column bearing to the bar - a steel bracket with holes, bent from a strip 20 mm thick. Steering column - dural tube Ø 22-XNUMX mm - fix in the bearing with two cotter pins.

It is advisable to use the steering wheel ready-made, but you can do it yourself by bending it from an aluminum pipe with a diameter of about 20 mm. or use a ring from an old Viennese chair. Cut the needle of the donut from a duralumin sheet about 3 mm thick. Turn the central sleeve on a lathe or select a suitable bar.

The rear steering wheel (from a children's bike or stroller) is mounted on a swivel bracket welded from the front of an old bicycle frame and a steel plate. On the transom board, it is fixed with four bolts. The steering drum is a round wooden boss Ø 110 mm with two duralumin names.

Rice. 3. Amphibious front axle device (click to enlarge): 1 - wheel (from the Shkolnik bicycle), 2 - deck, 3 - cockpit edging, 4 - pedal (plywood or textolite), 5 - central support bearing (brass or copper S2), 6 - crankshaft (steel Ø 12-14 mm), 7 - propeller plate mounting bracket (duralumin corner 20x20 mm), 8 - propeller plate (S10 plywood or S3 duralumin) 9 - shaped plate, 10 - side reinforcement ( plywood S12), 11 - bearing sleeve (brass, bronze), 12 - keel beam, 13 - support of the central and steering bearing. 14, 15 - longitudinal body set

Rice. 4. Amphibious aquaped body (click to enlarge)

To control the amphiped on the water, a duralumin steering pen is provided, hinged on the axle of the rear wheel. Before leaving the car on land, the feather is raised and secured with a cable with a carabiner.

For wiring shturtros you will need four to six blocks: there are such in any children's designer. You can adjust the tension of the cables with a pair of lanyards (thunders).

Amphiped's seat is a wooden frame covered with nylon cord or PVC tube Ø 5-6 mm. When installing the seat in the hull of the boat, consider the possibility of adjusting its position depending on the height of the driver.

After completing the assembly work, putty the body inside and out and paint it in two or three layers with GF or PF enamels. That, in fact, is all. It remains to test the amphibian both in land and water versions, once again check all joints and bearings, and eliminate possible leaks.

Author: I.Sergeev

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