中凹板バネの性能に就て
1952 年 1952 巻 1 号 p. 51-56
詳細
1952 年 1952 巻 1 号 p. 51-56
In 1947, J. E. S. which specified slight concave flat bar for leaf springs was established at first. From that time, after several revisions, present slight concave spring leaves have been decided, and are being used in both railway and vehicle springs.
We selected some sorts of bar with different form, examined the properties of them, manufactured the spring by using the best bars of them, and investigated the results statistically.
The results obtained are summarized as follows:-
(1) With respect to the form of concave section, the flat bar with tapered section, which has 4mm parallel parts in both edges, and 1/1000×width slight concavity in the middle part of the section, may be suitable.
(2) The deflection of the springs, which are composed of slight concave leaves is larger than that of the old type.
(3) In the case of mass-production of springs, camber and deflection of several kinds of railway springs, which we treat in this paper, are more suitable for present specification than those of old type.
