Vehicle Seat Catching Portion for Band Member Latching
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Solution Overview
Problem
Existing vehicle seat designs require lifting the seat pad to attach a strip between the seat cushion and seatback, making the attachment process cumbersome and difficult in terms of workability.
Innovation Solution
Incorporating a catching portion with a holding part and a guide part on the seat cushion that allows the band member to be hooked and latched without lifting the seat pad, featuring an integrally molded design with a rib to maintain the guide part's shape and a slight gap for smooth insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the seat pad is lifted upward to attach the band member to the cushion spring, then the band member can be latched onto the cushion spring, but the attachment operation becomes cumbersome and workability deteriorates
Solution Approach 1:
The patent introduces a catching portion as an intermediary structure between the band member and the cushion spring. This catching portion includes a holding part that receives the band member and a guide part that guides the band member into the holding part, eliminating the need to lift the seat pad while ensuring reliable latching
Solution Approach 2:
The catching portion is segmented into distinct functional elements: the holding part for securing the band member and the guide part for directing the band member into position. This segmentation allows each part to perform its specific function independently, improving both reliability and ease of operation
2Ease of operation
If the guide part is made flexible to allow band member insertion, then insertion becomes easier, but the guide part may deform and fail to maintain its guiding function
Solution Approach 1:
The guide part is designed with specific dimensional parameters and material properties that allow it to be sufficiently flexible for band member insertion while maintaining enough rigidity to retain its guiding shape. The thickness and length of the guide part are carefully controlled to achieve this balance
Data Source
AI summary
A vehicle seat includes: a seat cushion including another member disposed on a back side of a seat pad, and a catching portion provided in the another member; a seatback; a strip attached to the seatback; and a band member provided in the strip. The band member is hooked on the catching portion on a back side of the seat cushion. The catching portion includes a holding part and a guide part. The holding part has an opening that is opened toward a side facing the seat pad. The guide part is a flat part inclined from the opening. The band member is inserted into the opening and placed inside the holding part.