Work Machine Drive Mechanism With Shared Support Member
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Solution Overview
Problem
The existing drive mechanisms in work machines, such as saber saws, require multiple support members for each drive member, leading to an increase in the number of components and costs.
Innovation Solution
A work machine configuration that includes a motor, a drive mechanism with a first drive member for rotational motion and a second drive member for reciprocal motion, and a receiving member that supports both drive members, reducing the number of components and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a support member is set for each drive member in the drive mechanism, then the drive members are properly supported and function reliably, but the number of components increases, leading to increased cost and device complexity
Solution Approach 1:
The patent combines multiple support functions into a single receiving member that supports both the first drive member (gear) and the second drive member (plunger). This merging of support functions reduces the total number of components while maintaining reliable support for all drive members, directly resolving the contradiction between reliability and device complexity
Solution Approach 2:
The receiving member is designed with multi-functionality, serving as a universal support structure for multiple different drive members simultaneously. It includes a first receiving portion for the gear and a second receiving portion for the plunger, allowing one component to perform multiple support functions that would traditionally require separate support members for each drive member
2Reliability
If a support member is set for each drive member in the drive mechanism, then each drive member receives adequate support, but the cost of the drive mechanism and work machine increases
Solution Approach 1:
By merging the support functions into a single receiving member, the patent reduces the total component count, which directly lowers manufacturing costs. The receiving member integrates what would otherwise be multiple separate support members, reducing assembly complexity and material costs while maintaining adequate support for all drive members
Data Source
AI summary
A work machine includes: a motor; a drive mechanism, connected to the motor and operating a tip tool; and a case, accommodating the drive mechanism. The drive mechanism includes: a first drive member, rotationally driven about an axis by the motor; a second drive member, reciprocally driven by the motor; and a support member, fixed to the case, restricting movement of the first drive member in a direction of the axis, and supporting the second drive member so that the second drive member is reciprocally drivable.