Saddle Vehicle Trunk Mounting Structure Asymmetric Hook Design
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Solution Overview
Problem
Existing trunk devices for saddle type vehicles require high rigidity and material thickness, making them heavy and difficult to reduce in size, and existing mounting structures do not efficiently facilitate easy mounting and detachment.
Innovation Solution
A mounting structure for a trunk device on a saddle type vehicle featuring front and rear locking hooks bent in the same direction and an engaging hook bent opposite to them, dispersing force through hook parts to reduce rigidity and weight, with a two-stage bent section for easy operation and a concentrated engaging hook mechanism for enhanced capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the trunk device uses traditional mounting structure with locking sections, then the trunk can be securely fixed to the carrier, but the required rigidity and material thickness increase, making the trunk heavier and larger
Solution Approach 1:
The locking mechanism is divided into multiple independent hooks (front locking hook, rear locking hook, and engaging hook) that distribute the fixing force across multiple contact points with the carrier, eliminating the need for a single large rigid locking structure
Solution Approach 2:
The locking sections use thin-walled hollow construction with strategic reinforcement ribs rather than solid thick walls, achieving sufficient strength through optimized geometry and material distribution while minimizing material usage
2Reliability
If the trunk device uses traditional mounting structure, then secure fixing is achieved, but the material thickness must be increased, resulting in larger size
Solution Approach 1:
The mounting structure uses multiple discrete hooks positioned at different locations (front, rear, and engaging positions) that collectively provide secure attachment, allowing each hook to be thin-walled while maintaining overall mounting reliability
Solution Approach 2:
The locking sections utilize composite construction combining thin-walled hollow structure with strategically placed reinforcement ribs, creating a composite structure that achieves high strength-to-volume ratio
3Adaptability or versatility
If the locking hooks are bent in different directions, then mounting flexibility may be improved, but the structure obstructs easy mounting and detachment operations
Solution Approach 1:
The locking mechanism employs asymmetric hook orientations where the front and rear locking hooks bend in one direction while the engaging hook bends in the opposite direction, creating a coordinated asymmetric arrangement that guides the mounting operation sequence and prevents interference
Solution Approach 2:
The front and rear locking hooks are pre-positioned and oriented to guide the trunk device into the correct mounting orientation before the engaging hook is activated, ensuring proper alignment and preventing operational obstruction
Data Source
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AI summary
A mounting structure for a trunk device for a saddle type vehicle includes: a carrier (12) provided on a saddle type vehicle (10); a trunk device (20) detachably mounted to the carrier (12); front and rear locking sections (31, 41) projecting towards the carrier (12) from a mounting surface (21) of the trunk device (20); and an engaging hook (51) which operates according to an operator's operation and which engages with the carrier (12) to fix the trunk device (20) to the carrier (12). The front locking section (31) and the rear locking section (41) are composed of a front locking hook (31) and a rear locking hook (41) which are bent in the same direction (forward or rearward). The engaging hook (51) is bent in the direction opposite to the bending direction of both the locking hooks (31, 41). At the time of a fixing operation by the operator, the engaging hook (51) is moved in the direction opposite to the bending direction of both the locking hooks (31, 41), to engage with the carrier (12). This arrangement can reduce the rigidity required of the trunk, and render the trunk smaller in material thickness and weight.