Blower with Pivotable Handle for Ergonomic Mode Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing blower devices lack ergonomic design, leading to inefficient force transmission and discomfort during suction and blowing modes, as the handle position is not adaptable to the specific working mode, resulting in suboptimal operator posture and power distribution.
Innovation Solution
A blower design with a pivotable handle that adjusts to two positions, allowing the handle's inclination to change relative to the blow-out direction, enabling the blower to be used in both suction and blowing modes with improved ergonomic handling by adjusting the handle's angle and pivot axis, ensuring comfortable operation and precise power transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the handle position is fixed in a single position, then the device structure is simple, but the ergonomic performance deteriorates when switching between suction and blowing modes
Solution Approach 1:
The handle is designed to be rotatable about a pivot axis, allowing it to dynamically change position between a first position for suction mode and a second position for blowing mode. This dynamic adjustment enables ergonomic optimization for each operating mode while maintaining a relatively simple mechanical structure through a single pivot axis rotation mechanism.
2Force
If the handle is always aligned with the blowing direction, then force transmission is efficient in blowing mode, but operator comfort deteriorates in suction mode
Solution Approach 1:
The handle angle is optimized locally for each operating mode: in blowing mode, the handle aligns with the blowing direction for efficient force transmission, while in suction mode, the handle adopts a different angle optimized for operator comfort during suction operations. This mode-specific optimization resolves the contradiction between force transmission and comfort.
3Ease of operation
If the handle angle is optimized for suction mode, then operator comfort is improved, but force transmission efficiency deteriorates in blowing mode
Solution Approach 1:
The rotatable handle mechanism enables dynamic reconfiguration of the handle angle based on the operating mode. For suction mode, the handle is positioned at an angle optimized for operator comfort, while for blowing mode, it rotates to align with the blowing direction for optimal force transmission. This dynamic adaptation resolves the contradiction between comfort and efficiency.
4Adaptability or versatility
If a single handle position is used for both modes, then device complexity is reduced, but adaptability to different working modes deteriorates
Solution Approach 1:
The handle is designed to rotate about a pivot axis, providing two distinct positions: a first position for suction mode and a second position for blowing mode. This dynamic positioning capability enables the device to adapt to different working modes while maintaining relatively simple construction through a single rotational degree of freedom.
Solution Approach 2:
The same handle mechanism serves dual purposes by accommodating both suction and blowing modes through rotational adjustment. The handle's ability to assume different positions makes it universal for both operating modes, enhancing adaptability without requiring separate handles for each mode.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a blower (1) with a blower (2) driven by a drive motor (3), with an intake opening (4) and with an exhaust opening (5). The blower (1) has a handle (6) for guiding the blower (1), wherein the handle (6) is mounted on the blower (1) such that it can be pivoted from a first position (10) to at least a second position (20). The blower (1) is designed such that, during operation, an airflow (12) passes through the exhaust opening (5) in a blowing direction. The handle (6) has a grip area (7) which, in the first position (10) compared to the second position (20), is inclined differently against the blowing direction.