Rotating Lamp Globe Gear Drive Mechanism
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Solution Overview
Problem
Existing lamp designs with a median disc that rotates around an axis perpendicular to the connecting means face complexity in rotational control, particularly when the angle between the diametrical direction of the connecting means and the axis of rotation is acute, leading to cumbersome design and manufacturing processes.
Innovation Solution
The lamp incorporates a gear drive means that is movable around a parallel axis to the axis of rotation of the median disc, simplifying the design and manufacturing by allowing for more straightforward rotational control through a motor-driven mechanism, with various embodiments featuring different support structures and gear engagements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the drive means is controlled perpendicular to the axis of rotation of the central disc (as in DE 91 09 161 U), then the central disc can rotate, but the design and manufacturing become complex when the angle between connecting means and rotation axis is acute
Solution Approach 1:
Instead of controlling the drive means perpendicular to the central disc's rotation axis (as in prior art), the invention inverts the approach by controlling the drive means parallel to the rotation axis. This inversion simplifies the mechanical linkage and reduces design complexity, particularly when the angle between connecting means and rotation axis is acute.
Solution Approach 2:
The invention introduces a gear mechanism as an intermediary between the motor and the central disc. The drive means includes a gear engaged with a toothed wheel sector fixed to the central disc, which mediates the rotational control and simplifies the transmission of motion, thereby reducing overall system complexity.
2Ease of manufacture
If the axis of rotation of the drive means is parallel to the axis of rotation of the central disc, then the design is simplified, but a new configuration must be developed
Solution Approach 1:
The invention makes the drive means movable around an axis parallel to the central disc's rotation axis, rather than fixed in a single position. This dynamic configuration allows the drive means to adapt to different lamp designs and angles, maintaining manufacturing simplicity while increasing versatility and compatibility with various existing lamp structures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution simplifies the design and manufacturing of both the globe and the lamp base, enabling efficient rotational control of the median disc and allowing for the simulation of diurnal and nocturnal phases, as well as the representation of celestial bodies like the Earth and Moon, with improved mechanical integrity and reduced complexity.
Implementation Method 1
controlled in rotation by a motor carried by the support
Implementation Method 2
the driving means is a gear means, movable around an axis of rotation parallel to the axis of rotation of the central disc
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Lamp comprising a globe (1), connected to a base (3) by connecting means (5) extending along a diametrical direction (D) of the globe (1), a median disc (7), movable inside the globe (1) around an axis of rotation (A1), perpendicular to the diametrical direction (D) of the connecting means (5, 5a, 5b, 5c), a support (9), extending inside the globe (1) and carrying the axis of rotation (A1) of the median disc (7), lighting means (11), carried on one face or on one face and an opposite face of the median disc (7) and a means (13) for driving the median disc (7), controlled in rotation by a motor (15) carried by the support (9). According to the invention, the drive means (13) is a geared means, movable around an axis of rotation (A2) parallel to the axis of rotation (A1) of the median disk (7).The central disc (7) preferably comprises two convex lenticular half-discs (7a, 7b) between which the support (9) extends, carrying the axis of rotation (A2) of the drive means (13) and the motor (15), as well as the axis of rotation (A1) of the central disc (7). The connecting means (5c) and the support (9) are fixed relative to each other and free to rotate relative to the foot (3) around the diametral direction (D).