Massage Device Two-Dimensional Upper Arm Mechanism
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Solution Overview
Problem
Existing massage devices struggle to replicate the manual massage techniques, particularly for the upper arm area, as they often interfere with each other's operational space, limiting their ability to perform effective two-dimensional massage operations.
Innovation Solution
A massage device with a backrest part that includes a first massage unit movable in the height direction for back massage and second massage units on either side, equipped with pressing members and a mechanism allowing two-dimensional operations in a plane intersecting the pressing direction, avoiding the space occupied by the first unit, enabling independent and alternating massage operations on the upper arm side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a first massage unit is disposed inside the backrest part to perform back massage, then back massage function is provided, but space for second massage units to perform upper arm massage is limited
Solution Approach 1:
The massage device is divided into multiple independent massage units: a first massage unit disposed inside the backrest part for back massage, and second massage units disposed on the right and left sides of the backrest part for upper arm massage. Each unit operates independently with its own pressing members and mechanisms, allowing simultaneous operation without interference and providing comprehensive massage coverage.
2Adaptability or versatility
If second massage units are disposed on the sides of the backrest part to perform upper arm massage, then upper arm massage function is provided, but the mechanisms may interfere with the first massage unit's operation
Solution Approach 1:
The mechanisms of the second massage units are extracted and disposed in the right and left side regions of the backrest part, separate from the first massage unit's operation space. This spatial separation ensures that the mechanisms of the second massage units do not interfere with the first massage unit's vertical movement, allowing both units to operate independently and simultaneously.
3Ease of manufacture
If pressing members are used to perform massage on the upper arm side part, then massage effect is achieved, but two-dimensional movement capability is limited
Solution Approach 1:
The second massage units are equipped with mechanisms that enable two-dimensional movement of the pressing members in a plane intersecting the pressing direction. This allows the pressing members to move not only in the pressing direction but also in additional directions within the same plane, providing versatile massage operations that can replicate various manual massage techniques on the upper arm area.
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
The device effectively performs massage operations on the back and upper arm area without interference, mimicking manual massage techniques by using motors, eccentric cams, and guiding members to achieve two-dimensional movements, providing a more comprehensive and comfortable massage experience.
Implementation Method 1
a support member that receives rotation of an eccentric cam to operate the pressing member
Data Source
AI summary
A massage device includes a backrest part that supports a back of a seated user, a first massage unit disposed inside the backrest part to be movable in a height direction of the seated user and performing a massage operation on the back of the user from the backrest part, and a second massage unit disposed in each of one side and the other side of the backrest part in a right-left direction and performing a massage operation on an upper arm side part excluding the back of the user. The second massage unit includes a pressing member that presses the upper arm side part of the seated user, and a mechanism that causes the pressing member to perform the massage operation including a two-dimensional operation in a plane intersecting a pressing direction. The mechanism is disposed to avoid space where the first massage unit is present.