| 摘要 |
Massage pressure devices are fitted onto a chair which has a rocking back, either conventional rocking chair or an office chair with pivoted an spring-loaded back, so that massage is applied to the back of a person seated in and rocking the chair. The massage pressure devices are rollers or pads which are mounted so that the amount of massage pressure and the position of the massage pressure are adjustable in accordance with the user's desires. The massage pressure drive mechanism includes a reference to the base so that the massage pressure devices are driven up and down the chair back as the chair back rocks back and forth. In a conventional rocking chair, the truck carrying the massage pressure rollers is adjustable in both pressure of the devices against the back and the position thereof. In an office-style chair, the position of the pressure devices and the force of the massage pressure devices against the chair back are controlled by adjusting the position of the mounting tube and the spring extension.
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