Boots – shoes – and leggings – Heels – Cushion
Patent
1980-10-10
1983-04-05
Kee Chi, James
Boots, shoes, and leggings
Heels
Cushion
36 28, 36 30R, A43B 2126, A43B 1318
Patent
active
043786421
ABSTRACT:
A shoe or other like article of footwear has a heel construction having higher shock absorbing capability in a rear portion compared to the remainder, this difference resulting from the incorporation in the rear portion of a layer of elastomeric material having a recovery which is delayed, after compression, by a time of an order not less than that during which load through the construction is transferred from the rear portion to the remainder following heel strike during normal walking. This load transfer time is about 40 ms. and the delayed recovery time will not normally exceed about 1s. A similar higher shock absorbancy can be provided additionally in a localized area of the sole.
REFERENCES:
patent: 937425 (1909-10-01), Daubert
patent: 1060751 (1913-05-01), Graham et al.
patent: 1766311 (1930-06-01), Shaft
patent: 1976389 (1934-10-01), Everston
patent: 2055072 (1936-09-01), Everston
patent: 2402534 (1946-06-01), Crum
patent: 2502774 (1950-04-01), Alianiello
patent: 2998661 (1961-09-01), Israel
patent: 4043058 (1977-08-01), Hollister et al.
patent: 4101704 (1978-07-01), Hiles
patent: 4130947 (1978-12-01), Denu
The Journal of Bone and Joint Surgery, vol. 55B, No. 2, May 1973, Stott, J. R. R. et al., "Forces Under the Foot", pp. 335-344.
Rheumatology and Physical Medicine, vol. 11, No. 6, 1972, Hutton, W. C. et al., "An Apparatus to Give the Distribution of Vertical Load Under the Foot", pp. 313-317.
Light Leon H.
Maclellan Gordon E.
Chi James Kee
National Research Development Corporation
LandOfFree
Shock-absorbing footwear heel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shock-absorbing footwear heel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shock-absorbing footwear heel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-562254