Brakes – Inertia of damping mass dissipates motion
Patent
1987-02-27
1989-05-30
Kashnikow, Andres
Brakes
Inertia of damping mass dissipates motion
267182, 248610, 248517, 343DIG1, F16F 710, F16M 1300
Patent
active
048342246
DESCRIPTION:
BRIEF SUMMARY
The innovation refers to a pendulum that is used, in particular, for the swinging suspension of furniture intended as sitting or resting accommodations.
Many experiments have already been carried out in order to replace the up to now widely known static sitting and resting accommodations by dynamic ones.
Thus, it has been known for a long time, that rocking chairs are provided with a dynamic component in comparison to conventional chairs. The same applies also to cradles which have also been known for a long time and which children voluntarily accept because of their dynamic character which has proved to be soporific.
More recently, water beds have appeared on the market as a modern type of dynamic bed. The water bed, however, has considerable disadvantages because of its great space requirements and sluggish responsiveness to movements. It is very heavy and rather expensive, and if the water leaks out, it can cause significant damage. Furthermore, the water bed does not offer any continuous up and down movements and can not assure a steady, invariably horizontal resting surface. In order to overcome to some extent the problems inherent to a water bed, it has recently been provided with safety frames and a safety shell. Thermostatically heating the water ensures that it is automatically kept at a correct temperature. Furthermore, a cover is recommended which is arranged between the water bed and the sheets. Overall, the use of a water bed requires considerable additional expense and still has its problems.
DE-PS No. 1,124,648 describes a swing set or swing bed which requires much space and which, due to its superstructures, would have a visually annoying effect in a bedroom.
DE-PS No. 242,273, furthermore, makes known a seating accommodation which is arranged on pin-ended supports and is in an unstable equilibrium from which it is deflected to a more or less great extent as soon as a momentum is imparted.
From DE-GM No. 1,708,191 is known a seating accommodation suspended from a swing frame which, in case of need, can also be arrested. Such a swing frame as well as the apparatus according to the above-mentioned DE-PS No. 1,124,648 is not suitable for placing in a bedroom or living room.
The same applies to a multitude of prior known swing beds which are provided with bulky frames or which have to be suspended from the ceiling of the room.
Finally, from GB Pat. No. 696,239, there is known a rocking chair which can be shifted to and fro to a certain extent via articulated pendulums. Because of the friction occurring in the articulation points, however, there are required forces for the shifting which are not to be disregarded; an eventual after-swinging being excluded.
In contrast thereto, the object described in the DE-GM No. 82 22 691 wherein the upper portion of the sitting or resting accommodation is suspended via rope pendulums from the bottom portion has considerable advantages. In order to prevent unintentional large deflections and thus possible shocks during the swinging movements, there are provided for this sitting or resting accommodation so-called counter-pendulum for limiting the swinging amplitude to a given value and for avoiding shocks, which counter-pendulums, however, nonetheless safely limit the swinging amplitude when it exceeds certain threshold values.
The innovation is based on the object to provide a suitable pendulum for such sitting or resting accommodations which pendulum has an especially simple construction and is easy to use.
This solution has the considerable advantage that in addition to its not requiring much space and being relatively inexpensive, it provides the person who is resting or sleeping on it at the slightest body movement a maximum of spontaneous movements, while simultaneously safely preventing the pendulum from getting caught or from developing snarls during transport.
Furthermore, if the pendulum is additionally enclosed in an elastically deformable material, it simultaneously also takes over the function of the so-called "counter-pendulum" according to the st
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Kashnikow Andres
Potosnak Richard
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