DE72812C - Power machine for foot operation - Google Patents
Power machine for foot operationInfo
- Publication number
- DE72812C DE72812C DENDAT72812D DE72812DA DE72812C DE 72812 C DE72812 C DE 72812C DE NDAT72812 D DENDAT72812 D DE NDAT72812D DE 72812D A DE72812D A DE 72812DA DE 72812 C DE72812 C DE 72812C
- Authority
- DE
- Germany
- Prior art keywords
- dead center
- power machine
- connecting rod
- foot operation
- crank pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007906 compression Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 2
- 230000000717 retained Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G5/00—Devices for producing mechanical power from muscle energy
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rehabilitation Tools (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
An dem Tretwerk, welches aus Tritt 1 und Kurbelstange 3 und Kurbelzapfen 4 besteht, ist eine oder sind mehrere Zug- oder Druckfedern angeordnet, welche mit dem einen Ende an der Verbindungsstange 3, mit dem anderen Ende an einem Arm 8 des Trittes angreifen, so dafs sie den Kurbelzapfen über die Todtpunkte treiben, und zwar nicht nur nach einer, sondern auch nach beliebiger Drehungsrichtung. Der Arm 8 ist derart gestellt, dafs die Feder b oder bx einen Winkel mit der Kurbelstange 3 einschliefst, wenn der Kurbelzapfen 4 in beiden Todtpunktlagen sich befindet.On the treadmill, which consists of step 1 and connecting rod 3 and crank pin 4, one or more tension or compression springs are arranged, which act with one end on the connecting rod 3 and with the other end on an arm 8 of the step, so that they drive the crank pin over the dead center, not only in one but also in any direction of rotation. The arm 8 is positioned in such a way that the spring b or b x forms an angle with the connecting rod 3 when the crank pin 4 is in both dead center positions.
In Fig. ι und 2 ist die Wirkung der Spannfeder in dem Todtpunkt dargestellt; die Feder ist aus einander gezogen und zieht die Kurbelstange nach links, führt den Kurbelzapfen über den Todtpunkt hinweg und dreht die Kurbel in Richtung des Pfeiles a. Wenn der Tritt gehoben ist und der Kurbelzapfen in einer oberen Todtpunktlage sich befindet (s. Fig. 5), liegt der Arm 8 auf der rechten Seite der Kurbelstange, wie in Fig. 1 auch in punktirten Linien angegeben ist, wodurch die Feder b veranlafst wird, die Kurbelstange 3 nach dieser Seite zu ziehen und den Kurbelzapfen über den oberen Todtpunkt hinweg zu führen. Es ist also in beiden Fällen die Drehrichtung Pfeil α beibehalten.In Fig. Ι and 2, the effect of the tension spring is shown in the dead center; the spring is pulled apart and pulls the crank rod to the left, leads the crank pin over the dead center and turns the crank in the direction of arrow a. When the step is raised and the crank pin is in an upper dead center position (see Fig. 5), the arm 8 is on the right side of the connecting rod, as is also indicated in Fig. 1 in dotted lines, whereby the spring b causes is to pull the connecting rod 3 to this side and to guide the crank pin over the top dead center. The direction of rotation arrow α is therefore retained in both cases.
In Fig. 3., 4 und 6 ist die Wirkung einer Druckfeder dargestellt; in diesem Fall wird die umgekehrte Bewegungsrichtung erhalten. Der Kurbelzapfen geht in entgegengesetzter Richtung über die Todtpunkte (s. Pfeil b, Fig. 2 und 6).In Fig. 3, 4 and 6, the effect of a compression spring is shown; in this case the reverse direction of movement is obtained. The crank pin goes in the opposite direction over the dead center (see arrow b, Fig. 2 and 6).
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE72812C true DE72812C (en) |
Family
ID=346007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT72812D Expired - Lifetime DE72812C (en) | Power machine for foot operation |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE72812C (en) |
-
0
- DE DENDAT72812D patent/DE72812C/en not_active Expired - Lifetime
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