| 摘要 |
PROBLEM TO BE SOLVED: To provide a backache preventing device with which a pattern to oscillate a seat can be adjusted corresponding to a user. SOLUTION: A seat 1, where a person sits down, is oscillated by a driving device 2 so that the muscles around the waist of the person sitting on the seat 1 can be reinforced. The driving device 2 is controlled by a controller 3 on the basis of a driving pattern expressed with plural parameters. The controller 3 is provided with a basic pattern storage part 31 for storing preset basic driving patterns and a pattern input part 32 capable of inputting the desired driving pattern separately from the basic driving patterns. On the basis of the response of the person when the seat 1 is oscillated, while using the basic driving patterns, the driving pattern to be inputted from the pattern input part 32 is set and while using the suitable oscillating pattern corresponding to every user, the seat 1 is oscillated. |
