Card – picture – or sign exhibiting – Display with special effects – Electromotor operated
Reexamination Certificate
1998-11-06
2001-07-03
Davis, Cassandra H. (Department: 3628)
Card, picture, or sign exhibiting
Display with special effects
Electromotor operated
C074S089170
Reexamination Certificate
active
06253474
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to a motion apparatus for decorative purposes.
The object and purpose of the inventive motion apparatus is to provide a motion structure which for decorative purposes or for other purposes can be placed into a room or can also be placed outdoors. It has a similar purpose as, for example, a mobile.
The invention has the object to provide a motion apparatus for decorative purposes.
SUMMARY OF THE INVENTION
The technical solution is characterized by a rotary motion with at least two movement-coupled rotors, each rotor provided with a rotary base element whereby the rotary base elements of neighboring rotors are rotationally coupled synchronously with identical angular speed as well as provided with a longitudinally moveable securing arm arranged substantially perpendicularly to the axis of rotation of the corresponding rotary base element and rotating about the axis of rotation, whereby the securing arms of the rotors are longitudinally moveably coupled such to the rotational movements of the rotary base elements that for a complete revolution of the securing arm its front end is moved along a spiral path, whereby the securing arms of neighboring rotors are displaced relative to one another by 180° such that they have a collinear position in which the front ends face one another and in which the two securing arms are moved in the same direction into a respective end position. The apparatus further comprises a body, secured at the front end of the securing arm of one of the rotors and in the collinearly aligned position transferred to the securing arm of the other rotor, and further comprises also a drive unit for the rotary motion.
Accordingly, a motion apparatus for decorative purposes is provided which exhibits a harmonic movement of the rotary motion as well as of the body. The basic idea is that the body is transferred alternatingly from one rotor to the other rotor. After the transfer of the body the received body, due to the longitudinal movement of the securing arm, performs a spiral movement whereby after one complete revolution the securing arm is extended such that it can transfer the body to the retracted securing arm of the other rotor. The body thus follows the path of a figure eight. This produces a harmonic movement with constant transfer of the body. The transfer of the body from one securing arm to the other can be achieved with a corresponding coupling device which can be, for example, controlled by the rotational movement of the rotor. The transfer or coupling device can be embodied by solenoids at the two arms which are switched accordingly, or by grippers, for example, tongs controlled by control curves, or a receiving nipple using control curves. Other devices are, of course, also possible. In the basic design of the motion apparatus two rotors are provided. However, it is also possible, to provide three rotors in order to reduce imbalance so that two bodies must then be provided whereby, of course, the movements of the three rotors must be matched with respect to the two bodies and whereby two rotors respectively form a rotor pair.
In one further embodiment it is suggested that the rotary base elements rotate in opposite directions. Accordingly, the securing arms also rotate in opposite directions.
Preferably, the rotary base elements are meshing gearwheels. The gear wheels of the rotors engage one another and produce thus in a simple manner the opposed movement of the rotary base elements. When employing an intermediate gear wheel, it is, of course, possible to have the two base elements rotate in the same direction.
A further embodiment suggests that each rotary base element has coordinated therewith a longitudinally moveable rod arranged along the axis of rotation which is in cooperation with the securing arm such that a longitudinal movement of the rod results in longitudinal movement of the securing arm. This provides for a simple realization for reciprocating the securing arms during the rotational movement. For example, the rod may be a toothed rod which cooperates with a gear wheel and this gear wheel cooperates with the securing arm which is also a toothed rod.
A further embodiment suggests a crankshaft for driving the rods with corresponding cranks for movement of the rods whereby the crankshaft is synchronized by an intermediate gear box with the rotary base elements. This is a simple embodiment in order to reciprocate vertically the rods whereby for all rotors a common crankshaft is provided and whereby the respective rods are connected to respective cranks. Such a crankshaft provides for a simple synchronization of the rotary base elements.
Instead of the disclosed mechanism for reciprocating the securing arms it is also possible to employ instead a lever arrangement which transforms the rotational movement of the base elements into a linear movement of the securing arm.
A further embodiment suggests that the securing arm is arranged on an auxiliary rotary element that is coaxial to the rotary base element. This provides a simple technical solution in order to support and guide the securing arms of the respective rotors in a simple manner.
A further embodiment suggests that the auxiliary rotary element can be decoupled from the rotary base element such that the auxiliary rotary element together with its securing arm can advance for a short period of time relative to the rotary base element. This provides for an additional movement variation by providing decoupling of the movement.
Finally, in another embodiment it is suggested that the drive acts on one of the base rotary elements. This drive has the function to maintain the entire motion apparatus in motion. Of course, it is also possible to actuate the drive only for a certain period of time and then leave the motion apparatus to continue to move on its own. Of course, after a certain amount of time it will stop moving so that the drive must be actuated again. In order to maintain the movement for an extended period of time while the drive unit is turned off, it is possible to employ a flywheel.
REFERENCES:
patent: 3012448 (1961-12-01), Abraham
patent: 4557657 (1985-12-01), Olson et al.
patent: 5018288 (1991-05-01), Yang
patent: 2636564 (1990-03-01), None
Davis Cassandra H.
Huckett Gudrun E.
Jud Stefan
LandOfFree
Moving apparatus for decorating does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Moving apparatus for decorating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Moving apparatus for decorating will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2490883