Modular cushioning pad

• US 3,997,151 A
• Filed: 05/21/1975
• Issued: 12/14/1976
• Est. Priority Date: 05/21/1975
• Status: Expired due to Term

• Current Assignee: Lord Corporation (Parker-Hannifin Corporation)
• Original Assignee: Lord Corporation (Parker-Hannifin Corporation)
• Inventors: Leingang, Charles J.
• Primary Examiner(s): Marbert, James B.
• Application Number:
  US05/579,334
• Time in Patent Office: 573 Days
• Field of Search: 267/63 R, 267/140, 267/141, 267/152, 267/153, 213/221, 105/197 A, 293/87, 293/88, 61/48, 114/219
• US Class Current: 267/152
• CPC Class Codes: F16F 1/406 characterised by the shape of the elastic elements

Abstract

A modular cushioning pad comprises a rigid plate and at least one elastomeric cushion centered on the plate. One end surface of the cushion is bonded to the plate, while the second, opposite end surface is spaced from the plate. The outer side surface of the cushion has a first portion that slopes outwardly and away from the end of the cushion bonded to the plate. A second portion of the outer side surface slopes inwardly and away from the first portion of the surface to merge with the second end surface of the cushion. The plate and cushion are preferably annular.

Claims

1. A modular cushioning pad comprising a rigid plate and at least one elastomeric cushion centered on said plate, the cushion having a first end surface bonded to a side of the plate, a second end surface opposite and spaced from the first end surface, and an outside surface defining the outer side periphery of the cushion, the outside surface of the cushion having (a) a first portion sloping inwardly of the cushion and away from the first end surface and extending part way to the second end surface, (b) a second portion spaced inwardly of the first portion and sloping radially inwardly of the cushion and away from said first end portion toward said second end surface and (c) a third portion extending inwardly of the cushion from the first portion to the second portion, the first portion of the outside surface being disposed outwardly of the second and third portions.

2. A modular cushioning pad, according to claim 1, wherein the plate and the cushion are annular and wherein the cushion also has an inside surface which defines the central opening in the cushion and which slopes radially outwardly of the cushion away from the first end surface to merge with the second end surface.

3. A modular cushioning pad, according to claim 2, wherein the second end surface from its radially inner periphery to its radially outer periphery slopes toward said plate.

4. A modular cushion pad, according to claim 2, wherein the inside surface of the cushion in cross section defines a concave curve.

5. A modular cushioning pad, according to claim 1, wherein the second portion of the outside surface merges with the second end surface of the elastomeric cushion.

6. A modular cushioning pad comprising a rigid plate and at least one elastomeric cushion centered on the plate, the cushion having a first end surface bonded to a side of the plate, a second end surface opposite and spaced from the first end surface, and an outside surface defining the outer periphery of the cushion, the outside surface of the cushion having:

a. a first portion that slopes outwardly of the cushion and away from the first end surface;

b. a second portion that is contiguous with the first portion and slopes inwardly of the cushion and away from the first portion of the outside surface toward the second end surface, the thickness of the first portion of the outside surface measured in a plane perpendicular to the rigid plate being less than the thickness of the second portion of said surface;

c. a third portion sloping inwardly of the cushion and away from the first end surface of the cushion; and

d. a fourth portion extending inwardly of the cushion from the third portion to the first portion,

the third portion of the outside surface being disposed outwardly of the first, second and fourth portions of said surface and the first portion of the outside surface being disposed between the second and fourth portions of said surface.

7. A modular cushioning pad, according to claim 6, wherein the second portion of the outside surface continuously slopes inwardly of the cushion and merges with the second end surface of the cushion.

8. A modular cushioning pad, according to claim 6, wherein the plate and the cushion are annular and wherein the cushion also has an inside surface which defines the central opening in the cushion and which slopes radially outwardly of the cushion away from the first end surface to merge with the second end surface.