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Unread 01-01-2011, 22:26
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Jared Russell Jared Russell is offline
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Re: Hypothetical Situation - Stairs

Quote:
Originally Posted by Merle View Post
An Estonian patent can be found here: patent link

If you Google the term "ratasjalg" you will find more videos of this wheel-leg device. Ratasjalg appears to be the Estonian term for wheel-leg (Google translates it to "Bike leg").

Merle
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Great find. I used this website to translate the text to English (I found a plaintext version of the patent that supports copy & paste here):

Quote:
The invention belongs to the field of mobile and transport systems, components, and specifically considers the use of different liikurplatvormide, invaseadmete, toys, agricultural and military vehicles at. The invention is sufficiently versatile.
Technique is known as wheeled pedestals, where the bike leg consists of hub, spokes and rim segments, and the hub attached to the spokes pöördemehhanismist, where the spokes are at one end of rummuga wheel pöörlemistasapinnas reversibly and rim segments are connected to the spokes of the second tip reversibly to the wheel axis of rotation parallel to the axle through. Turns to the spokes, they will move the rim segments. This solution is a shortage of small change in wheel diameter of the wheel opening. It also drops an open position, the total load of rods, which in turn reduces the life of the mechanism.

The nature of the invention
This invention is intended to increase reliability and reduce wear of moving parts, Mechanism, and simplifying and reducing the permeability increase. To achieve the objective of the invention will be wheeled cycles, consisting of hub, spokes and rim segments, and attached to the spokes of the hub pöördemehhanismist where the spokes are connected at one end and rummuga rim segments are connected to the spokes of the second tip. Rum, equipped with additional hub of bars and reversible avamissüdamikuga avamissüdamikule reversibly attached at one end. Segment of the rim and the spokes attached avamissüdamiku interim approval from reversibly hub. Foot clutch equipped with additional caster, one of which is bound rigidly avamissüdamikuga rigidly connected to the wheel and the other half feet laagripukiga liikursüsteemil shaft so that the clutch is being applied through a rigid avamissüdamik one side of the coupler and laagripukiga avamissüdamiku fixative. Rim segments are flexible, so that the rim does not exceed the maximum radial deflection of the wheel by foot radius of the opening of the alienation of segments of the rim. Segments cover the outside rim of high-friction surfaces, or well-grip material. Avamissüdamiku slip clutch retainer is necessary. Design has the advantage of less number of moving parts, and more even distribution of forces in the open position. Cycling is easier to automate the opening and closing of the open end of the segment, it is possible to prepare poolelastsena, when open, making it roll even more. Existing wheeled feet, compared to the advantages of this mechanism for easier design and management, as is required of all wheel drive with only one leg segments to move. Ronimisvõime increases, because there is no round the wheel base, which would be in contact with the ground. Instead, the star spokes, between which the segments themselves form the surface of the wheel. This may make shorter segments, because the total length of the leg form with a radius segment. Opening can be manual, electric or other suitable actuator.


Jalas caster wheel is connected to the leg and the positive aspects
The result is a good permeability of the stairs, and levels of

Example of invention

Wheel path consists of a hub, spokes and the rim 2 of the third segment Segments are connected to the spokes of the rim 3 2 reversibly wheel shaft 4 feet by 5 parallel axes. Rum is equipped with an additional hub in a reversible avamissüdamikuga 6, which is connected to the rods 7th 7 is connected to the other end of the rod segments of the third metatarsal Wheel base is equipped with a clutch, one of which is fixed to the disc 8 avamissüdamikuga 6 and 9 are rigidly connected to the second disc wheel shaft fourth leg Laagripukiga 10 of actuator 11 is being applied avamissüdamik 6 rigidly connected via the clutch disc 8 laagripukiga 10th The rim three segments are made flexible so that the maximum radial deflection of the rim wheel does not exceed the radius of the leg by the increment of the rim segments DR 3 opening for smoother movement. Segments of the rim 3 is coated with suitable material from outside the 12, which is great adhesion, and preferably with a good vetruvusomadused. Avamissüdamiku move all segments of the same rotation angle. Columns, which combine the core of the segments, you can use the suspension, which reduces the loads on the deck. Rely on the rim in the retracted position the ends of the segments against each other, forming a single wheel rim. However, the drive force to move the segments to a minimum. The unequal burden of over voltages generated can be used to avoid suspension and flexible elements. If the wheel traction motor torque is greater than the torque necessary to turn avamissüdamiku, the clutch being applied avamissüdamik laagripukiga connected to the shaft and the wheel turning and the engine gets avamissüdamiku position between the spokes. While driving, for example, still holds avamissüdamikku friction or a suitable tool, such as stud or bolt retainer, as is the case with a manual rotating core. Friction prevents the modification of the core position, but the traction motors must be powerful enough to overcome this force.
The drawings are depicted in the six pöiasegmendiga solution. Of experts, it is clear that the principles described may also be prepared by a greater or lesser number of pöiasegmentide wheeled legs.
The untranslated words are probably technical terms that don't appear in a general purpose Estonian dictionary.