Double-layer slider-crank mechanism to generate pulling or pushing sensation without an external ground

When a small object in a hand-held device moves periodically and prismatically with asymmetric acceleration (strong in one direction and weak in the other), the holder typically experiences the kinesthetic illusion of being pushed or pulled continuously by the held device. We investigated this perceptual effect for its potential application to a hand-held, non-grounded, haptic device that can convey a sense of a continuous translational force in one direction, which is a yet missing tile in haptics research. A one-degree of freedom haptic device based on two symmetric slider-crank mechanism was constructed to convert the single-speed rotational cyclic movement of a motor into asymmetric translational cyclic movement with asymmetric acceleration and to cancel unwanted side acceleration. We verified our previous results with the haptic device and investigated the effect of the gross weight of the device on force perception.

[1]  L. Jones,et al.  Perception of force and weight: theory and research. , 1986, Psychological bulletin.

[2]  Tomohiro Amemiya,et al.  Phantom-DRAWN: direction guidance using rapid and asymmetric acceleration weighted by nonlinearity of perception , 2005, ICAT '05.

[3]  Hiroo Iwata,et al.  Development of a non-grounded haptic interface using the gyro effect , 2003, 11th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, 2003. HAPTICS 2003. Proceedings..

[4]  Yoshio Tanaka,et al.  Mobile Torque Display and Haptic Characteristics of Human Palm , 2001 .

[5]  Tomohiro Amemiya,et al.  Virtual force display: direction guidance using asymmetric acceleration via periodic translational motion , 2005, First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics Conference.

[6]  Tomohiro Amemiya,et al.  Hand-held Force Display with Spring-Cam Mechanism for Generating Asymmetric Acceleration , 2007, Second Joint EuroHaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems (WHC'07).