Spring devices – Resilient shock or vibration absorber
Patent
1989-05-04
1991-05-21
Graham, Matthew C.
Spring devices
Resilient shock or vibration absorber
248560, 267141, 267153, F16F 136
Patent
active
050173286
ABSTRACT:
A mounting arrangement that is particularly well-suited for use in environments wherein extremely high loads are encountered. Particularly, a motor mount for use with water craft is disclosed. The mounting arrangement comprises a base plate, and a resilient member is affixed to the base plate. The resilient member is generally comprised of a rubber-like compound, or the like, that provides for dampening of vibration. The resilient member is generally bonded to the base plate, and preferably, a vulcanization process is employed to secure the two components. A disk-like member, or insert, is secured in the resilient member. The insert has a cove disposed around the periphery of the edge thereof and into which the resilient member is disposed that provides a mechanical linkage therebetween. The insert is also preferable bonded to the resilient member by means of the vulcanization process at the same time as the base plate. The cove provides greater bonding area between the insert and the resilient member, and the mechanical linkage created by the portion of the resilient member that captivates the lower portion of the insert provides for an extremely strong arrangement that will generally not deteriorate or disengage when large forces are encountered. The insert has a top portion typically has a shape with at least one flat edge, or other noncircular cross section, that is adapted to prevent rotation thereof relative to the resilient member. The bottom portion of the insert has edges that have a relatively smooth contour to prevent the creation of fractures in the resilient member. In addition, the base plate and insert are generally comprised of stainless steel. This minimizes any corrosion caused by the use of steel bolts employed to secure the water craft, for example, to the mounting arrangement.
REFERENCES:
patent: 2719017 (1955-09-01), Mordarski et al.
patent: 2893665 (1959-07-01), Paulsen
patent: 3244386 (1966-04-01), Bourgeois
patent: 4836512 (1989-06-01), Lun
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