Hinge Device With Inclined Surfaces For Simplified Attachment
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Solution Overview
Problem
Conventional hinge devices face difficulties in attaching the body to the pedestal, requiring complex movements to insert engagement portions into recesses, making the process cumbersome.
Innovation Solution
The hinge device incorporates inclined surfaces on the pedestal and body, allowing the body to be easily attached by moving it closer to the pedestal with engagement portions pressed against these surfaces, simplifying the attachment process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conventional engagement structure with multiple recesses and portions is used, then the body can be removably attached to the pedestal, but the attachment process becomes difficult and cumbersome requiring complex movements
Solution Approach 1:
The first engagement portion is preliminarily positioned in the body at a fixed location, and the first engagement recess is preliminarily formed in the pedestal. When attaching, the body is simply moved forward along the front-rear direction of the pedestal, allowing the first engagement portion to automatically enter and engage with the first engagement recess without requiring complex manual manipulation or rotation.
Solution Approach 2:
The engagement structure is segmented into two independent engagement systems: the first engagement portion with the first engagement recess, and the second engagement portion with the second engagement recess. This segmentation allows each engagement mechanism to operate independently and simplifies the overall attachment process by breaking down the complex single-step engagement into two simpler sequential engagements.
2Stability of the object's composition
If the cupped member is attached to the door beforehand, then the door can be connected to the frame, but inserting the first engagement portion into the first engagement recess becomes difficult
Solution Approach 1:
The engagement mechanism transitions from requiring multi-directional complex movements to a simplified linear movement along the front-rear direction. The first engagement portion is designed to move linearly along the front-rear axis of the pedestal to engage with the first engagement recess, eliminating the need for rotational or lateral adjustments that would be required if the cupped member were pre-attached to the door.
3Reliability
If multiple engagement portions and recesses are used, then secure attachment is achieved, but the device complexity increases
Solution Approach 1:
The engagement structure is divided into two separate but simple engagement systems rather than one complex engagement mechanism. Each engagement portion and recess pair is straightforward in design, but together they provide secure attachment. This segmentation reduces the complexity of individual components while maintaining overall attachment security through the combination of two engagement points.
Data Source
Figure 1
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Figure 3
AI summary
A first engagement recess 41 and a first inclined surface 43 continuing from an open portion of the first engagement recess 41 are formed in a front end portion of a pedestal 1. A second engagement recess 42 and a second inclined surface 44 continuing from an open portion of the second engagement recess 42 are formed in a rear end portion of the pedestal 1. An inclination angle of the first inclined surface 43 with respect to a reference line that is a straight line connecting a contact point between the first engagement shaft 46 and the first inclined surface 43 and a contact point between the second engagement shaft 50 and the second inclined surface 44 is greater than an inclination angle of the second inclined surface 44 with respect to the reference line. The first inclined surface 43 and the second inclined surface 44 are disposed such that the first engagement shaft 46 and the second engagement shaft 50 disposed in the body 3 can be respectively contacted with the first inclined surface 43 and the second inclined surface 44 at the same time.