TRIZ Paper: Japan TRIZ Symposium 2009


Concept Design of a Child-Seat by TRIZ Style Problem Identification
Masao Ishihama and Minami Hamada (Kanagawa Institute of Technology)
The Fifth TRIZ Symposium in Japan, Held by Japan TRIZ Society on Sept. 10-12, 2009 at National Women's Education Center, Ranzan-machi, Hiki-gun, Saitama, Japan
 
[Posted on Sept. 23, 2010] 

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Editor's Note (Toru Nakagawa, Sept. 21, 2010)

This paper was presented last year at the 5th TRIZ Symposium in Japan, 2009 in an Oral session.   Ms. Minami Hamada, a first year MC student, presented the paper vividly and impressively.  And the presentation won the Award as the results of the voting by Japanese participants.  Thus I wanted to introduced this in my "Personal Report" in detail, but actually written briefly (after quoting the Authors' Abstract) as:

On the first day afternoon of the Symposium, this paper was presented by Ms. Minami Hamada, a first year MC graduate student.  It was a nice presentation; it obtained the Award by the voting of the participants. 
In the end of July, after Professor Ishihama made the English translation version, Ms. Hamada further revised the slides in Japanese.  Thus the English and Japanese slides in the Proceedings do not match.  For writing this Personal Report, I found the Japanese version was much improved.  Thus I am now asking the Authors for providing me with new English translation of the revised slides. 
-- Please wait for a week or two for the introduction of this fine paper. 

Unfortunately, Professor Ishihama has been too busy to revise the English translation version of this presentation until now.  Thus I have missed the chance of posting this wonderful presentation on this Web site.

Today I decided to post this presentation as it is.  In English, Abstract and the (old, original) presentation slides in PDF.  In the Japanese page, Extended Abstract (in HTML and in PDF) and the (new, much improved) presentation slides in PDF.  It is a pity that I do not have time to write an introduction of this excellent presentation. 

This page is composed as follows:

[1] Abstract in English (in HTML) (submitted on Jun. 2, 2009)

     Extended Abstract (of one page) by the Author in Japanese (submitted on Aug. 1, 2009) .

[2] Presentation slides in English in PDF (22 slides)(submitted on Jul. 26, 2009)

     Presentation slides in Japanese in PDF (21 slides, much improved version) (submitted on Aug. 1, 2009)

[3] Nakagawa's introduction (very short) in "Personal Report of Japan TRIZ Symposium 2009" in English.

[Note:  The Official Web site of Japan TRIZ Society publicly posted the Japanese slides of the Award-winning presentations on Dec. 1, 2009 and the English slides on Mar. 17, 2010.]

Top of this page Abstract Extended Abstract in Japanese (PDF) Slides PDF Revised Slides in Japanese   Nakagawa's Introduction   Nakagawa's Personal Report of Japan TRIZ Symp. 2009 Japan TRIZ Symp. 2009 Japanese page

[1] Abstract

Concept Design of a Child-Seat
by TRIZ Style Problem Identification

Masao Ishihama and Minami Hamada (Kanagawa Institute of Technology)

Abstract

Child-seats for motor vehicles do not have good reputation in their practical usage in Japanese society. In the beginning of this study for improving their design, however, problems to solve were not so clear for the authors to start designing.

To solve this situation, expected and unexpected functions of child-seats were analyzed using TRIZ method. This analysis identified benefits to be improved as easy loading of a child and ride comfort compatible with collision safety. One of the contradictions was caused by side guards of a child-seat protecting from lateral movement. These side guards interrupt smooth child loading. Second contradiction was between allowing child move and restraining them in collision. Third contradiction was to insulate vehicle vibration and to restrain a child.

Before proceeding to problem solving stage, resource analysis was conducted. Space surrounding child-seat that is much wider than that around adult passengers was identified as a major resource that has not been properly utilized. Information on CAN (LAN on a car) was picked up as another potential resource.

From these preliminary analyses, several inventive principles and concrete design ideas were drawn. For instance, “segmentation” and “dynamicity” lead to an idea of 90 degree horizontal seat turn. “Spheroidality”, “counter-weight” and “self-service” gave an idea of a swinging motion realized by spherical hollow surface for a seat pad. “Universality” combined these two ideas into one physical design.

Fig.1 Diagram of the conceptual design of a new child-seat

 


[2]  Presentation Slides in PDF

Presentation Slides in English in PDF (22 slides, 963 KB)

Presentation Slides (revised) in Japanese in PDF (21 slides, 997 KB)


[3]  Introduction to the Presentation (by Nakagawa)

Excerpt from: 
Personal Report of The Fifth TRIZ Symposium in Japan, 2009, Part F. TRIZ in Education and in Academia
by Toru Nakagawa (Osaka Gakuin University), Dec. 20, 2009
Posted on Dec. 24, 2009 in "TRIZ Home Page in Japan"

 

Masao Ishihama, Minami Hamada (Kanagawa Institute of Technology) [J28 O-1] gave a nice Oral presentation with the title of "Concept Design of a Child-Seat by TRIZ Style Problem Identification".  The Authors' Abstract is quoted here first:

Child-seats for motor vehicles do not have good reputation in their practical usage in Japanese society. In the beginning of this study for improving their design, however, problems to solve were not so clear for the authors to start designing.
To solve this situation, expected and unexpected functions of child-seats were analyzed using TRIZ method. This analysis identified benefits to be improved as easy loading of a child and ride comfort compatible with collision safety. One of the contradictions was caused by side guards of a child-seat protecting from lateral movement. These side guards interrupt smooth child loading. Second contradiction was between allowing child move and restraining them in collision. Third contradiction was to insulate vehicle vibration and to restrain a child.
Before proceeding to problem solving stage, resource analysis was conducted. Space surrounding child-seat that is much wider than that around adult passengers was identified as a major resource that has not been properly utilized. Information on CAN (LAN on a car) was picked up as another potential resource.

From these preliminary analyses, several inventive principles and concrete design ideas were drawn. For instance, “segmentation” and “dynamicity” lead to an idea of 90 degree horizontal seat turn. “Spheroidality”, “counter-weight” and “self-service” gave an idea of a swinging motion realized by spherical hollow surface for a seat pad. “Universality” combined these two ideas into one physical design.

On the first day afternoon of the Symposium, this paper was presented by Ms. Minami Hamada, a first year MC graduate student.  It was a nice presentation; it obtained the Award by the voting of the participants.  In the end of July, after Professor Ishihama made the English translation version, Ms. Hamada further revised the slides in Japanese.  Thus the English and Japanese slides in the Proceedings do not match.  For writing this Personal Report, I found the Japanese version was much improved.  Thus I am now asking the Authors for providing me with new English translation of the revised slides.  -- Please wait for a week or two for the introduction of this fine paper. 

 

Top of this page Abstract Extended Abstract in Japanese (PDF) Slides PDF Revised Slides in Japanese   Nakagawa's Introduction   Nakagawa's Personal Report of Japan TRIZ Symp. 2009 Japan TRIZ Symp. 2009 Japanese page

 

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Last updated on Sept. 23, 2010.     Access point:  Editor: nakagawa@ogu.ac.jp