Shock and vibration dampening mount assembly

Claim 2

A shock and vibrational dampening mount means comprising: a nonrestricted first apertured low load-deflection rate elastomer means; and a second high load deflection rate elastomer means positioned in said apertures said second elastomer being thinner than said first elastomer means and functioning independently thereof whereby the slope of the load deflection curve of said first elastomer means intersects the combined load deflection curve of said first and second load deflection curves forming an angle of from about 10 to about 60*, and said first elastomer means dampens vibrations and and said second elastomer means dampens shock.

Claim 3

A shock and vibration dampening mount means comprising: a nonrestricted first apertured low load-deflection rate elastomer means; and a second high load deflection rate elastomer means positioned in said apertures, said second elastomer means being thinner than said first elastomer means whereby said second elastomer means functions only after substantial compression of said first means, such that said first elastomer means dampens vibrations and said second elastomer means dampens shock.

Claim 4

A shock and vibration dampening mount means comprising: a nonrestricted first apertured low load-deflection rate elastomer means; and a second high load deflection rate elastomer means positioned in said apertures, said second elastomer means being thinner than said first elastomer means whereby said second elastomer means functions only after substantial compression of said first means, such that said first elastomer means dampens vibrations and said second elastomer means dampens shock.

Claim 5

The shock and vibration dampening mount means of claim 2 wherein when said second elastomer functions the sum of the load-deflection rates thereof is from about 25 percent to about 300 percent above the load-deflection rate of said first elastomer means.

Claim 6

The shock and vibration dampening mount means of claim 2 wherein said first elastomer means has a generally flat top and bottom face means and a load-deflection rate of from about 8, 750 to about 14,750 pounds per inch of deflection; and said second elastomer means has a generally flat top and bottom face means and a load-deflection rate of from about 3,400 to about 20,000 pounds per inch of deflection.

Claim 7

A shock and vibration dampening mount assembly for isolating an operator environment structure from the supporting vehicle comprising: a first set of apertured low durometer elastomer means having a generally flat top and bottom face means; a second set of high durometer elastomer means being positioned in said apertures of said first elastomer means having a generally flat top and bottom face means, said second elastomer means being thinner than said first elastomer means whereby said second elastomer means functions only after substantial compression of said first means; a plate means secured to said supporting vehicle and having a top and bottom face, whereby one of said first elastomer set means carrying said second elastomer set means is positioned adjacent said top face and another is secured adjacent said bottom face, such that said first set of elastomer means dampens vibration and said second set of elastomer means dampens shock, said operator environment structure being supported thereon.

Claim 8

A shock and vibration dampening mount assembly for isolating an operator environment structure from the supporting vehicle comprising: a first set of apertured low durometer elastomer means having a generally flat top and bottom face means; a second set of high durometer elastomer means being positioned in said apertures of said first elastomer means having a generally flat top and bottom face means, said second elastomer means being thinner than said first elastomer means whereby said second elastomer means functions only after substantial compression of said first means; a plate means secured to said supporting vehicle and having a top and bottom face, whereby one of said first elastomer set means carrying said second elastomer set means is positioned adjacent said top face and another is secured adjacent said bottom face, such that said first set of elastomer means dampens vibration and said second set of elastomer means dampens shock, said operator environment structure being supported thereon.

Claim 9

The shock and vibration dampening mount assembly of claim 5 wherein: said plate means is apertured, said apertures being provided with bolt means securing said plate means to said environment structure, said bolt means being isolated from said plate means by a third elastomer means.

Claim 10

The shock and vibration dampening mount assembly of claim 6 wherein: said third elastomer means is journaled by a sleeve means, said bolt means journalling said sleeve means, and having a load deflection rate of from about 4,000 to about 20,000 pounds per inch of deflection.

Claim 11

An operator environment structure mounting assembly insulating an operator environment structure from a vehicle for reduced vibration and shock transmissions thereto comprising: front and rear bracket means secured to said vehicle; rear mounting means securing said structure to said rear bracket, including first and second set of elastomer means, one being thinner than the other, having different load-deflection rates and at least two of which lie in common planes, whereby said thinner elastomer means dampens shock and said other elastomer means dampens vibrations; and front mounting means securing said structure to said front bracket means including first and second of elastomer means having different load deflection rates and arranged in sandwich like fashion.

Claim 12

An operator environment structure mounting assembly insulating an operator environment structure from a vehicle for reduced vibration and shock transmissions thereto comprising: front and rear bracket means secured to said vehicle; rear mounting means securing said structure to said rear bracket, including first and second set of elastomer means, one being thinner than the other, having different load-deflection rates and at least two of which lie in common planes, whereby said thinner elastomer means dampens shock and said other elastomer means dampens vibrations; and front mounting means securing said structure to said front bracket means including first and second of elastomer means having different load deflection rates and arranged in sandwich like fashion.

Claim 13

The mounting assembly of claim 8 wherein said rear mounting means includes: an apertured plate having a top and bottom face means and being secured to said rear bracket; a series of first and second elastomer means, a first set of first and second elAstomer means horizontally contacting said top face and a second set horizontally contacting said bottom face means whereby vibration is dampened; and said operator environment structure is a tractor cab means.

Claim 14

The mounting assembly of claim 9 wherein said rear mounting means includes: a series of second elastomer pellet means carried by said first elastomer means and having a thickness less than that of said first elastomer means whereby only high shock loads are counteracted thereby, while vibrational dampening is achieved by said first elastomer means.

Claim 15

The mounting assembly of claim 9 wherein said apertured plate includes: a series of third elastomer means carried in said apertures.

Claim 16

The mounting assembly of claim 11 wherein said rear mounting means includes a first elastomer means having a load deflection rate of from about 8,750 to about 14,750 pounds per inch of deflection, a second elastomer means having a load deflection rate of from about 20,000 to about 34,000 pounds per inch of deflection per assembly and a third elastomer means having a load deflection rate from about 4,000 to about 20,000 pounds per inch of deflection.

Claim 17

The mounting assembly of claim 12 wherein said tractor cab means is displaceable and includes: a displacement means comprising: a threaded first section secured to said tractor cab; a threaded second section secured to said rear bracket means; and a sleeve means being threadingly journalled by said first and second sections whereby when said sleeve is rotated said first and second threaded sections are pulled into or out of said sleeve means.

Claim 18

A hinged shock and vibration dampening assembly connecting a tractor cab frame member to a vehicle for insulating against shock and vibration comprising: rear mount means including: an apertured plate means having a first and second surface; a plurality of apertured elastomer means positioned in said apertures of said plate means whereby providing horizontal dampening; a pair of apertured elastomer means positioned opposite such that one contacts said first surface and one said second surface of said plate means, said apertures carrying a plurality of pellet elastomer means such that said pellet means is employed only when said body member is subjected to heavy shock; and a fastening means securing said cab frame member to said apertured plate through said elastomer means; front mount means including: an apertured front tractor frame support means; front elastomer means including a pair of apertured elastomer means positioned on opposite sides of said front tractor frame means, each of said elastomer having a first flat face and a second face which includes a beveled portion, a flat portion and a dish portion, said first flat faces contacting said apertured front tractor frame means, a pair of apertured flat plate means oppositely disposed and positioned on said faces; an apertured elastomer means positioned in said aperture of said apertured front tractor frame means whereby providing horizontal dampening; and a fastening means securing said elastomer means to said front frame means.

Claim 19

A hinged shock and vibration dampening assembly connecting a tractor cab frame member to a vehicle for insulating against shock and vibration comprising: rear mount means including: an apertured plate means having a first and second surface; a plurality of apertured elastomer means positioned in said apertures of said plate means whereby providing horizontal dampening; a pair of apertured elastomer means positioned opposite such that one contacts said first surface and one said second surface of said plate means, said apertures carrying a plurality of pellet elastomer means such that said pellet means is employed only when said body member is subjected to heavy shock; and a fastening means securing said cab frame member to said apertured plate through said elastomer means; front mount means including: an apertured front tractor frame support means; front elastomer means including a pair of apertured elastomer means positioned on opposite sides of said front tractor frame means, each of said elastomer having a first flat face and a second face which includes a beveled portion, a flat portion and a dish portion, said first flat faces contacting said apertured front tractor frame means, a pair of apertured flat plate means oppositely disposed and positioned on said faces; an apertured elastomer means positioned in said aperture of said apertured front tractor frame means whereby providing horizontal dampening; and a fastening means securing said elastomer means to said front frame means.