Source: GREEN HERON TOOLS, LLC submitted to NRP
RESEARCH AND DEVELOPMENT OF ALTERNATIVES TO THE WALK-BEHIND ROTARY TILLER SUITABLE FOR WOMEN FARMERS
Sponsoring Institution
National Institute of Food and Agriculture
Project Status
COMPLETE
Funding Source
Reporting Frequency
Annual
Accession No.
0222794
Grant No.
2010-33610-21862
Cumulative Award Amt.
$392,225.00
Proposal No.
2010-02120
Multistate No.
(N/A)
Project Start Date
Sep 1, 2010
Project End Date
Aug 31, 2013
Grant Year
2010
Program Code
[8.12]- Small and Mid-Size Farms
Recipient Organization
GREEN HERON TOOLS, LLC
6239 SCHOCHARY RD.
NEW TRIPOLI,PA 18066
Performing Department
(N/A)
Non Technical Summary
The number of women farmers in the U.S. has been rising over the past several decades, with the rate of growth accelerating between the 2002 and 2007 Censuses of Agriculture, to nearly 1 million female farm operators in 2007. Between 1980 and 2002, the number of women-operated farms had increased by 86%, a rate far surpassing growth in U.S. farms overall. These data underscore the need for agricultural tools & equipment that are appropriate for women. In general, tools & equipment function best and are safest and easiest to operate when they fit the user. Because women's and men's bodies are markedly different - women, for example, tend to be shorter and to have 40-75% less upper-body strength & 5-30% less lower-body strength than men - agricultural equipment designed for men will not "fit" or be optimal for the vast majority of female users. The problem is exacerbated by the fact that some of women's anatomical and physiological characteristics may place them at particular risk for farm injuries and musculoskeletal disabilities, the leading cause of disability for people in their working years. Despite women's key role in agriculture & the importance of appropriate tools, there appear to be no agricultural tools or equipment on the U.S. market that were designed explicitly for women. Instead, virtually all tools and equipment seem to have been designed either for men or for some "average" user whose size, weight, strength etc. were heavily influenced by the average man's. Through this project, Green Heron Tools will research and design safer, more user-friendly alternative(s) to the traditional full-size walk-behind rotary tiller, a vital piece of equipment on small farms of the type most often operated by women. Rotary tillers were the highest priority for redesign cited by women farmers & market growers providing input to Green Heron Tools during its Phase I SBIR project. The scientific design process will be based on data about women's anatomy and physiology, and will incorporate input already obtained from women farmers; state-of-the-art knowledge related to ergonomics, human factors & fuel/energy efficiency; and latest technology & materials. Anticipated benefits include: 1) A reduction in agriculturally related injuries and disabilities among women farmers, leading to a decrease in lost productivity, missed work days and health care costs; 2) Improved quality of life for women farmers; 3) An increase in productivity of women farmers, leading to enhanced viability of farming for women; and 4) The potential for the U.S. to become a world leader in producing agricultural equipment appropriate for women. The resulting tillage equipment is also expected to be safer and easier to operate for some men, particularly older men and those of smaller stature.
Animal Health Component
100%
Research Effort Categories
Basic
(N/A)
Applied
100%
Developmental
(N/A)
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
4025310202070%
7236010308030%
Goals / Objectives
Project objectives are: 1. To design and build a prototype of a rototiller-substitute (which we are generically calling a tiller) compatible with the anthropometrics, physiology, needs and preferences of women users 2. To research the technical feasibility and economic viability of using alternative (non-fossil) fuels to power the tiller 3. To research appropriate manufacturing options, marketing strategies and distribution channels for the tiller 4. To research potential additional markets for GHT products, including males with reduced upper body strength (e.g., older male farmers), males of smaller stature (e.g., Hispanic and Asian males), and international markets. Expected outputs include: design & construction of a soil engagement device, by March 2011; assessment of potential alternative fuel/energy sources, by April, 2011; adaptation, adoption or construction of a power source, by August 2011; construction of a prototype frame for the soil engagement device, by February, 2012; construction of the finished prototype(s), by April 2012; development of marketing plan, by April, 2012; demonstrations to potential users & other interested professionals, by June, 2012; development of a plan for phased introduction of new tillage equipment, by July, 2012; completed CAD(s), by August, 2012; selection of potential manufacturer(s) by end of August, 2012; completion of a report on potential additional markets (domestic & international) for new tillage equipment, including analysis of data from two focus groups, by August, 2012.
Project Methods
Equipment will be designed based on a combination of anthropometric and other human factors data, the latest principles of ergonomic design and use of state-of-the-art materials and technology, including in the field of alternative energy / fuels. Design will also be informed by qualitative data obtained during Phase I via focus groups, surveys and interviews; qualitative data obtained during Phase II from potential users; and field testing of prototypes by project investigators and staff. Any relevant standards (e.g., ASTM International) will be incorporated into the design, and all engineering work will be carried out in accordance with accepted engineering / scientific standards. The project's focus on the needs of women users makes it unique. An 8-step, non-linear design process will be utilized. Evaluation at all stages will focus on detecting and eliminating design or safety flaws; ensuring ease of use; and ensuring effectiveness for identified tasks. The majority of the testing will be conducted by members of the design team, as an ongoing part of building, testing and refining tiller components. Upon completion of prototypes, additional evaluation will be conducted by the team's ergonomics specialist, via direct or videotaped observation of the PD/PI and co-PD/PI operating the equipment, as well as through simple physiological assessments - e.g., use of a force gauge to assess arm and lower back force. Throughout the project Green Heron Tools will continue to undertake a variety of efforts to educate women farmers about the health and safety benefits of using tools and equipment designed specifically for women's bodies. These will include dissemination of information through presentations at farming conferences and outreach to electronic and print media. Findings will be disseminated to professional audiences through publications and conference presentations. Evaluation of the project itself will be primarily formative, with an expanded version of the proposal work plan being used as the basis for ensuring that objectives and outputs are achieved. Regular meetings of the investigators and consultants (engineers and ergonomics specialist) will be used for continuous improvement - i.e. to ensure the project remains on schedule and to problem-solve any barriers. Summative evaluation for this project will consist of a straightforward examination of whether objectives have been achieved.

Progress 09/01/10 to 08/31/13

Outputs
Target Audience: Nothing Reported Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided? Nothing Reported How have the results been disseminated to communities of interest? Nothing Reported What do you plan to do during the next reporting period to accomplish the goals? Nothing Reported

Impacts
What was accomplished under these goals? Activities: held 42 design team meetings and testing sessions;built and tested 20 iterations of a full-size engineering prototype; filed a provisional patent application; prepared solid model and CAD files; developed preliminary marketing and distribution plan;identified and engaged Pennsylvania manufacturer to build two beta prototype units for extensive testing and, tentatively, to produce units for sale. Also: identified and adopted planning process framework; performed historical review of rotary tiller technology; investigated and performed historical review of tine types; reviewed / considered several "out-of-the-box" soil engagement technologies, including the building of primitive, partial-scale prototypes of two of them; built outdoortest course with three runs composed of various types of soil and sand; built indoor test course to facilitate four-season testing; performed quantitative / instrumented (including vibration analysis and power usage) and qualitative / subjective testing of front-tine, mid-tine and rear-tine traditional tillers; converted a gas-powered tiller to electric motor; acquired relevant ANSI / OPEI and ISO standards; acquired & pilot tested ergonomic assessments (REBA & RULA); developed research protocol; completed Commercialization Strategy Report; prepared drawings of 7 potential motor / drive system configurations;built custom tooling machine for unique soil-engagement component;held field day with ergonomics consultant to compare our tiller with existing tillers from standpoints of ergonomics / injury risk & prevention; tested experimental tiller in real-world conditions – i.e. preparing all planting beds at grantees’ farm, loosening sod & incorporating compost in engineer’s gardens; identified & engaged manufacturing design engineers; identified & met with patent attorney to initiate patent search & develop patent application strategy; applied for and received$12,500 private-sector grant to help support patent application. Objectives met: Objectives1-3 were met in their entirety. Objective 4 was partially met, in that intellectual property concerns precluded us from sharing our experimentaltiller design with representatives of other potential markets, as we had initially planned to do. We were able toresearch these markets in other ways, however, anddidestablish theirviability. Results / conclusions / outcomes:The project has demonstrated the feasibility of developing & marketing alternative tillage technology that is quieter, more energy-efficient, safer & easier to operate (low-vibration, lighter, easier to control), and that tills the soil in a manner that does not overly process / pulverize it. Systematic testingand a report by a consulting ergonomist resulted in numerous design decisions – e.g., regarding optimal geometry; power source / drive system; soil engagement device; and ergonomic features. We anticipate that commercialization of this device will result in improved efficiency and reduced prevalence of injuries and disabilities (including musculoskeletal disorders) among female and some male farmers and market growers.

Publications


    Progress 09/01/11 to 08/31/12

    Outputs
    OUTPUTS: Activities - held 17 design team meetings & testing sessions; prepared drawings of 7 potential motor / drive system configurations; built & evaluated 11 iterations of a full-size tiller prototype; built & evaluated 12 prototypes of unique soil engagement device, including measurement of power requirements; prepared preliminary CAD of soil engagement device; identified & tested various off-the-shelf components; built custom tooling machine for unique component; built indoor testing area to facilitate four-season testing; held field day with ergonomics consultant to compare our tiller with existing tillers from standpoints of ergonomics / injury risk & prevention; tested tiller in real-world conditions - i.e. preparing all planting beds at grantees' farm, loosening sod & incorporating compost in engineer's gardens; identified & engaged manufacturing design engineers; identified & met with patent attorney to initiate patent search & develop patent application strategy; applied for (& later received) private-sector grant to help support patent application PARTICIPANTS: Individuals: Elizabeth A. Brensinger, MPH (PD/PI) and Ann M. Adams, RN, MSN (Co-PD/PI) - substantive and administrative project oversight and coordination; leadership of design team; facilitation and documentation of all team meetings & testing sessions; field testing of traditional tillers & prototypes; responsibility for ensuring the meeting of all objectives; USDA reporting responsibilities. Aaron M. Yoder, Ph.D. (agricultural engineer, lead consulting engineer & design team member) - day-to-day coordination with project technician; participation in all design team meetings and testing sessions; building of prototypes; field testing of traditional tillers & prototypes. H. J. Sommer III, Ph. D. (mechanical engineer; consulting engineer & design team member) - participation in all design team meetings and testing sessions; building of prototypes; field testing of traditional tillers & prototypes. Robert Wrye (mechanic & inventor; project technician & design team member) - building of prototypes; participation in all design team meetings & testing sessions; maintenance of leased property; building of custom tooling machine; building of test tracks; field testing of traditional tillers & prototypes. Jennifer A. Hess, DC, MPH, Ph.D. (consulting ergonomist) - participation in testing session / field day featuring operation of traditional and prototype tillers; evaluation of tillers from standpoint of ergonomics and injury risk / prevention; preparation of recommendations regarding ergonomic features of new tiller. TARGET AUDIENCES: Nothing significant to report during this reporting period. PROJECT MODIFICATIONS: Not relevant to this project.

    Impacts
    The project has demonstrated the feasibility of developing & marketing alternative tillage technology that is quieter, more energy-efficient, safer & easier to operate (low-vibration, lighter, easier to control), and that tills the soil in a manner that does not overly process / pulverize it. Systematic testing during this project period and a report by a consulting ergonomist resulted in numerous design decisions - e.g., regarding optimal geometry; power source / drive system; soil engagement device; and ergonomic features. We anticipate that commercialization of this device will result in improved efficiency and reduced prevalence of injuries and disabilities (including musculoskeletal disorders) among female and some male farmers and market growers. More specific outcomes / impacts will be able to be reported at the conclusion of the grant and/or after patent applications have been filed.

    Publications

    • No publications reported this period


    Progress 09/01/10 to 08/31/11

    Outputs
    OUTPUTS: Activities -- held 18 design team meetings & testing sessions; identified and adopted planning process framework; performed historical review of rotary tiller technology, including the acquisition and testing of several mid-1900s tillers; investigated and performed historical review of tine types; reviewed / considered several "out-of-the-box" soil engagement technologies, including the building of primitive, partial-scale prototypes of two of them; built test course with three runs composed of various types of soil and sand; performed quantitative / instrumented (including vibration analysis and power usage) and qualitative / subjective testing of front-tine, mid-tine and rear-tine traditional tillers; converted a gas-powered tiller to electric motor; tested 1/3-scale prototype of unique soil engagement device; acquired relevant ANSI / OPEI and ISO standards; acquired & pilot tested ergonomic assessments (REBA & RULA); developed research protocol, complete with research questions, assessment method, resources needed and baseline if applicable; built & evaluated 6 iterations of a full-size prototype of the unique rotary tiller replacement chosen as our focus; completed Commercialization Strategy Report, including a competitive matrix and a commercialization roadmap estimating a 3rd-quarter of 2013 market introduction PARTICIPANTS: Individuals: Elizabeth A. Brensinger, MPH (PD/PI) and Ann M. Adams, RN, MSN (Co-PD/PI) -- substantive and administrative project oversight and coordination; leadership of design team; facilitation and documentation of all team meetings & testing sessions; field testing of traditional tillers & prototypes; responsibility for ensuring the meeting of all objectives. Aaron M. Yoder, Ph.D. (agricultural engineer; lead consulting engineer & design team member) -- day-to-day coordination with project technician; participation in all design team meetings and testing sessions; building of prototypes; field testing of traditional tillers & prototypes. H. J. Sommer III, Ph.D. (mechanical engineer; consulting engineer & design team member)-- participation in all design team meetings and testing sessions; building of prototypes; field testing of traditional tillers & prototypes. Robert Wrye (mechanic & inventor; project technician & design team member) -- building of prototypes; participation in all design team meetings and testing sessions; maintenance of leased property; building of test tracks; field testing of traditional tillers & prototypes. TARGET AUDIENCES: Nothing significant to report during this reporting period. PROJECT MODIFICATIONS: Not relevant to this project.

    Impacts
    The project has demonstrated the feasibility of developing & marketing alternative tillage technology that is quieter, more energy-efficient, safer & easier to operate (low-vibration, lighter, easier to control), and that tills the soil in a manner that does not overly process / pulverize it. We anticipate that commercialization of this device will result in improved efficiency and reduced prevalence of injuries and disabilities (including musculoskeletal disorders) among female and some male farmers and market growers. More specific outcomes / impacts will be able to be reported at the end of the grant period.

    Publications

    • No publications reported this period