Browse Prior Art Database

MODULAR ROPS SAFETY ZONE TEST FIXTURE

IP.com Disclosure Number: IPCOM000250267D
Publication Date: 2017-Jun-21
Document File: 2 page(s) / 41K

Publishing Venue

The IP.com Prior Art Database

Abstract

During vehicle certification, tractors has to go through the crash test on ROPS. For crash test of ROPS (Rollover Protective Structure) we need to define safety zone. The safety zone is occurred in between a line which is connected to hardest point of engine & top of ROPS. This safety zone is designed as per the human movements when he is in driving position. Usually for test purpose, a frame will be developed for safety zone with required dimensions. The proposed solution has modular base design. Horizontal and vertical linear guides are placed in to get two directional movement for safety zone frame. To hold the horizontal guides, a base plate is mounted on main base. The complete safety zone frame is divided into 3 partitions. The mid-frame is constant, front & rear portions of the frame can be adjusted with the help of hinges. A turn buckle is mounted between front and mid portion for accurate adjustment of front frame angle, in order to vary the safety zone.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 51% of the total text.

TITLE: MODULAR ROPS SAFETY ZONE TEST FIXTURE

1. INTRODUCTION

During vehicle certification, tractors has to go through the crash test on ROPS. For crash test of ROPS (Rollover Protective Structure) we need to define safety zone. The safety zone is occurred in between a line which is connected to hardest point of engine & top of ROPS. This safety zone is designed as per the human movements when he is in driving position. Usually for test purpose, a frame will be developed for safety zone with required dimensions.

2. BACKGROUND/ PROBLEM

The existing frame is mounted on rear portion of seat & front portion of steering. For different tractors there will be different platforms & positioning of seat. This existing frame is difficulty to mount on various tractors and to measure the SIP (Seat Index Point) values the frame is uncomfortable. To shift the frame from one tractor to another is not flexible.

3. PROPOSED DESIGN/ SOLUTION

The proposed design has safety zone frame mounting which is flexible and handy. For that a fixture is required. This fixture will be mounted on tractor platform, not on seat & steering. This fixture is common (modular) to all tractors. The modular fixture eliminates the utilization of separate test bench. To position the frame at exact position a SIP (Seat Index point) locater is required. For SIP calculations the frame needs to move in two directions freely. The safety zone frame needs to get contact with steering & seat rear portion.

The proposed solution has modular base design. Horizontal and vertical linear guides are placed in to...