Measuring and testing – Testing by impact or shock – Specimen impactor detail
Patent
1996-12-17
1998-04-14
Dougherty, Elizabeth L.
Measuring and testing
Testing by impact or shock
Specimen impactor detail
73 1209, G01N 300
Patent
active
057394113
ABSTRACT:
Accelerated impact testing apparatus which simulates the dynamic strain in golf clubs, shafts and other specimens by rapidly transferring kinetic energy to the specimen from an instrumented tup that is free to rebound. The specimen is held in place by two holding fixtures uniquely designed to provide the appropriate boundary and support conditions for the transient strain to propagate in a manner similar to that of the actual application e.g. a golf club striking a ball. Force applied to the tup is generated by compressing a spring to a predetermined length and releasing its energy through a rapidly actuated latch. Actual force applied as a function of time is measured by a load cell located in the tup and the tup velocity just prior to impact is computed from a velocity sensor signal. Acceleration of the impact event is also recorded as well as strain levels in the shaft.
REFERENCES:
patent: 1703507 (1929-02-01), Barnhart
patent: 1753532 (1930-04-01), Reid et al.
patent: 2610504 (1952-09-01), Nigh
patent: 2660880 (1953-12-01), Vivian
patent: 2755658 (1956-07-01), Brown
patent: 3106834 (1963-10-01), Parstorfer
patent: 3226974 (1966-01-01), Bresk et al.
patent: 3444729 (1969-05-01), Shobert
patent: 3566668 (1971-03-01), Browning et al.
patent: 3855842 (1974-12-01), Imabori et al.
patent: 4062222 (1977-12-01), Solheim
patent: 4085609 (1978-04-01), Kelly
patent: 4261566 (1981-04-01), MacDougall
patent: 4523759 (1985-06-01), Igarashi
patent: 4640120 (1987-02-01), Garritano et al.
patent: 4711754 (1987-12-01), Bednar
patent: 4996867 (1991-03-01), Miyamae
patent: 5247835 (1993-09-01), Howell
patent: 5325702 (1994-07-01), Verstaeten
patent: 5457984 (1995-10-01), Ambur et al.
patent: 5567867 (1996-10-01), Nazar
Spring Device for Impact tests of Plastic, Ind. Lab. (USA) vol. 45, No. 11 (Nov. 1979).
Drop-Weight Impact tests With the Use of Laser-Doppler Velocimetry, Hodgkin son et al, Apr. 1981.
Lee Nathan J.
Pitt William G.
Callaway Golf Company
Dougherty Elizabeth L.
Haefliger William W.
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