Left-right foldable wheelchair
The left-right foldable wheelchair addresses space and rigidity issues through a novel six-rod connection mechanism and locking system, enabling compact folding and enhanced stability.
EP4772152A1Pending Publication Date: 2026-07-08GUANCHI TECHNOLOGY (HEBEI) CO LTD
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- GUANCHI TECHNOLOGY (HEBEI) CO LTD
- Filing Date
- 2024-12-20
- Publication Date
- 2026-07-08
AI Technical Summary
Technical Problem
Existing foldable wheelchairs in a left-right folding mode face issues with large space occupation after folding and weak rigidity during unfolding, along with potential safety hazards.
Method used
A left-right foldable wheelchair design featuring a six-rod connection mechanism with rods arranged in specific vertical and horizontal planes, an X-shaped connecting rod configuration, and a locking mechanism to facilitate compact folding and enhanced rigidity, utilizing a stable support frame formed by additional six-rod mechanisms and vertical rods.
Benefits of technology
The design achieves compact folding with reduced space occupation and improved rigidity during unfolding, ensuring safety and stability.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure IMGAF001_ABST
Abstract
A left-right foldable wheelchair, comprising side frames (10), wheel assemblies, a seat assembly (30), and a locking mechanism. Each of the side frames (10) comprises a bottom support rod (11), a seat support rod (12), a rear vertical rod (13), and a front connecting rod (14). The seat assembly (30) comprises first to fourth rods extending along a left-right direction. The first rod (31), the second rod (32), the third rod (33), the fourth rod (34), and the seat support rods (12) on both sides form a first six-rod connection mechanism. The seat assembly (30) further comprises a first connecting rod (35) and a second connecting rod (36) which are arranged in an X-shaped cross configuration. A front end portion of the first connecting rod (35) is rotatably connected to a middle portion of the first rod (31), a rear end portion of the first connecting rod (35) is rotatably connected to a middle portion of the fourth rod (34), a front end portion of the second connecting rod (36) is rotatably connected to a middle portion of the second rod (32), and a rear end portion of the second connecting rod (36) is rotatably connected to a middle portion of the third rod (33). When the locking mechanism is unlocked, the side frames (10) on both sides can be moved closer to each other along the left-right direction, causing the first and second connecting rods to drive the first six-rod connection mechanism to actuate, thereby achieving left-right folding. The structure is novel and occupies minimal space after folding.
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