Ergonomic antifatigue seating device and method

• US 5,735,575 A
• Filed: 11/05/1996
• Issued: 04/07/1998
• Est. Priority Date: 08/13/1992
• Status: Expired due to Fees

• Current Assignee: Richard D. Harza
• Original Assignee: Richard D. Harza
• Inventors: Harza, Richard D.
• Primary Examiner(s): Cranmer, Laurie K.
• Assistant Examiner(s): WHITE, RODNEY BARNETT
• Application Number:
  US08/743,931
• Time in Patent Office: 518 Days
• Field of Search: 297/314, 297/260, 297/452.24, 297/452.25, 5/109, 5/609, 5/653
• US Class Current: 297/314
• CPC Class Codes: A47C 3/0251 driven by electric motors
• CPC Class Codes: A47C 3/0255 pivotally mounted in the base frame, e.g. swings
• CPC Class Codes: A47C 9/002 with exercising means or having special therapeutic or ergonomic effects
• CPC Class Codes: A61H 1/0292 for the spinal column A61H1/0218 takes precedence

Abstract

A method and apparatus is disclosed for periodically and rhythmically lifting one hip of a seated person and then the other, thereby simulating the muscle stimulation and relaxation imparted to a person by walking. A rotatable support panel is provided for alternately lifting and moving backward and forward each hip of a seated person.

Claims

1. A method of imparting movement to the hips and lower mid-section of a seated person wherein the movement and stimulation simulates that which is imparted to the person through walking, comprising the steps of:

a) placing a support element which has a left side support and a right side support bracketing a central point so that the support element is under the hips of the seated person with the left side support under the left hip and the right side support under the right hip;

b) restraining said support element so as to fix a position of said central point while permitting universal movement of said support element about said central point;

c) pivoting said support element about said central point so as to alternately raise and lower said left and right side supports, thereby alternately lifting one hip of the seated person and then the other hip; and

d) simultaneously pivoting said support element about said central point so as to alternately rotate said left and right side supports forward and backward, thereby cyclically moving the hips of the seated person forward and backward at the same time that they are being cyclically raised and lowered.

2. The method defined in claim 1 further comprising the step of:

e) supporting the hips of the person with a support element which has a substantially planar support surface.

3. The method defined in claim 1 further comprising the step of:

e) supporting the seated person with a support element which has a support surface which at least partially follows the contour of the human buttocks.

4. The method defined in claim 1 further comprising the step of:

e) positioning said central point adjacent to and under the pelvis of the seated person.

5. The method defined in claim 1 further comprising the steps of:

e) providing a stem and a support panel;

f) fixedly attaching a first end of the stem to the support panel; and

g) moveably attaching a second end of the stem to said support element.

6. The method defined in claim 5 further comprising the step of:

h) moveably attaching said stem to said central point of said support element.