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The present structure involves a pair of interlocking springs which provide a preload tooth mesh between a pair of gears wherein tooth depth variations would not create any problem.
English (United States)
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100% of the total text.
Page 1 of 2
Interlocking Springs for Gear Shaft Preload
The present structure involves a pair of interlocking springs which provide a
preload tooth mesh between a pair of gears wherein tooth depth variations would
not create any problem.
The middle sections 10 and 11 of gear pairs 13 and 12, respectively, engage
shafts 14 and 15 on which mesh gears 16 and 17 are mounted. Spring portions
10 and 11 provide bearing surfaces within which gear shafts 14 and 15 are
respectively received, as shown in Fig. 1. The ends of each of springs 12 and
13 have mating helical shapes so as to engage one another, as shown in the
detail of the ends of springs 12 and 13 in Fig. 2.
When the two helical ends of the pair of springs are respectively interlocked
with each other (which may be accomplished by laterally sliding the springs into
engagement with each other), the interlock springs act on the shaft to preload the
gears 16 and 17 into engagement with each other, as shown. The flex force of
each spring can be controlled so as to control the force of the preload. By the
floating axes of the gear shafts working in conjunction with these interlocking
springs, full tooth engagement of the gear may be assured irrespective of non
uniformities in the teeth as well as variations in the tooth depths.
Page 2 of 2
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