Cushioning structure

• US 5,518,802 A
• Filed: 04/21/1994
• Issued: 05/21/1996
• Est. Priority Date: 05/31/1989
• Status: Expired due to Fees

• Current Assignee: Craig S. Potter, David P. Colvin
• Original Assignee: Craig S. Potter, David P. Colvin
• Inventors: Potter, Craig S., Colvin, David P.
• Primary Examiner(s): Turner, Archene
• Application Number:
  US08/178,265
• Time in Patent Office: 761 Days
• Field of Search: 428/178, 428/72, 428/166, 428/180, 428/304.4, 5/449, 5/451, 36/44
• US Class Current: 428/178
• CPC Class Codes: B32B 3/12 characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
• CPC Class Codes: B60R 2021/0421 using honeycomb structures
• CPC Class Codes: B60R 21/04 Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings
• CPC Class Codes: B65D 65/406 with at least one layer provided with a relief other than corrugations
• CPC Class Codes: B65D 65/44 Applications of resilient shock-absorbing materials, e.g. foamed plastics material, honeycomb material
• CPC Class Codes: B65D 81/03 Wrappers or envelopes with shock-absorbing properties, e.g. bubble films for thermal insulating purposes B65D81/3888
• CPC Class Codes: B65D 81/052 filled with fluid, e.g. inflatable elements
• CPC Class Codes: E04C 2/34 composed of two or more spaced sheet-like parts E04C2/32 takes precedence; spacers for cavity walls E04B2/44
• CPC Class Codes: F16F 7/121 the members having a cellular, e.g. honeycomb, structure
• CPC Class Codes: F16F 9/0472 characterised by comprising a damping device with plastic deformation of members F16F7/12; delay devices or arrangements F15B21/10
• CPC Class Codes: Y10T 428/234 including elements cooperating to form cells
• CPC Class Codes: Y10T 428/24562 Interlaminar spaces
• CPC Class Codes: Y10T 428/24661 Forming, or cooperating to form cells
• CPC Class Codes: Y10T 428/24678 Waffle-form
• CPC Class Codes: Y10T 428/249953 Composite having voids in a component [e.g., porous, cellular, etc.]

Abstract

A cushioning structure for dampening shocks useful as a packing material to protect shipments of goods and as a protective shield or garment to prevent injury from falls or increase comfort such as in shoes, furniture, carpet, automobile components etc. including one or more planar sheets of pliable material bonded to a matrix of polygon shape cells containing a fluid such as air or other gas. In one aspect the cells are in fluid communication with each other to provide a valved fluid transfer from one cell to the next. In another aspect, the material is a resilient material formed as a grid like matrix of shaped indentures.

Claims

1. A cushioning material structure of foamed resilient material of a structural form comprising:

(a.) a plurality of generally planar and opposing lateral sides, having a plurality of indentures formed in at least one of the opposing sides in the general configuration of a grid surface in the sides; and

(b.) the indentures being in geometric shape with walls of structural integrity resulting from their shape and arranged in a grid in repeating patterns that provide a continuum of cushioning performance and structural support laterally throughout the structure, and

(c.) wherein the space external of the indentures and between the opposing sides contains a resilient foam.

2. A cushioning structure according to claim 1 wherein the indentures include a plurality of tube apertures extending from one opposing side to the other opposing side.

3. A cushioning structure according to claim 1 wherein at least a portion of the indentures comprise a plurality of truncated prism forms;

and further wherein the indentures also include a plurality of tube apertures extending from one opposing lateral side to the other opposing lateral side.

17. A cushioning structure according to claim 1 wherein the indentures are in the form of a polygon including a plurality of walls in substantially upstanding relationship to the plane of said lateral sides and having a closed and sealed end in a position opposite to the said lateral sides.

4. A cushioning structure for use in a surrounding atmosphere and for dampening impact shock loads that are suddenly applied, comprising:

(a.) a plurality of planar strata of pliable material having a plurality of cell/indenture structures bonded and sealed there between with each cell/indenture structure formed in a resilient material that includes a plurality of generally planar and opposing lateral sides, that are bonded to the planar strata to include a plurality of cell/indentures formed in the opposing lateral sides in the general configuration of a grid surface in the opposing lateral sides,

(b.) the cell/indentures being in geometric shapes with walls of structural integrity resulting from their shape and arranged in a grid in repeating patterns that provide a continuum of cushioning performance laterally throughout the structure, and

(c.) wherein the space external of the cell/indentures and between the opposing lateral sides contains a resilient foam.

5. A cushioning structure according to claim 4 wherein the cell/indentures include a plurality of tube apertures extending from one opposing lateral side to the other opposing lateral side.

6. A cushioning material according to claim 4 wherein the cell/indentures include a plurality of truncated prism forms;

and wherein the cell/indentures include a plurality of tube apertures extending from one opposing lateral side to the other opposing lateral side.

7. A cushioning structure according to claim 5 wherein apertures to the external atmosphere are provided in the planar strata to provide a valving action in the passage of fluid from the said cell/indentures to the external atmosphere.

8. A cushioning structure according to claim 4 wherein the cell/indentures are formed in a geometric shape in a grid surface, and the cell/indentures are arranged in a substantially quadratic repeating patterns.

9. A cushioning structure according to claim 4 wherein the indentures are in the form of a polygon including a plurality of walls in substantially upstanding relationship of the plane of said planar sides and having a closed and sealed end in a position opposite to the said planar sides.

11. A cushioning structure according to claim 4 wherein fluid passage means is provided between adjacent cell/indentures for the transfer of fluid and the pressure in one or more cell/indentures is increased as the result of impact shock loads upon the outer surface of a stratum and the amount of fluid communication between the cell/indentures is controlled at a preselected rate by a valving action of the passages for the fluid communication to provide a preselected dampening for a preselected range of shocks.

12. A cushioning structure according to claim 4 wherein the number of strata is two, one of which is bonded on each side of the cushioning material.

13. A cushioning structure according to claim 4 wherein the number of strata is greater than 2 and each strata has a foam bonded therebetween in a multi-layer sandwich.

14. A cushioning structure according to claim 4 wherein the cell/indentures are formed in a geometric shape in a grid surface, and the cell/indentures are arranged in substantially quadratic repeating patterns.

15. A cushioning structure according to claim 4 wherein the cell/indentures include a plurality of truncated prism forms;

whenever they are included in the repeated quadratic pattern.

16. A cushioning structure according to claim 5 wherein fluid passage means is provided between adjacent cells/indentures for the transfer of fluid when the pressure in one or more cells/indentures is increased as the result of impact shock loads upon the outer surface of a stratum and the amount of fluid communication between the cells/indentures is controlled at a preselected rate by a valving action of the passages for the fluid communication to provide a preselected dampening for a preselected range of shocks.

18. In a cushioning structure according to claim 4 wherein the indentures are in the form of a polygon including a plurality of walls in substantially upstanding relationship to the plane of said lateral sides and having a closed and sealed end in a position opposite to the side sides.

10. A cushioning structure indentures formed in one of the opposing sides in a general configuration of a grid surface in the side,

(b.) the indentures being in geometric shapes with walls of structural integrity resulting from their shape and arranged in grid repeating patterns that provide a continuum of cushioning performance laterally throughout the structure, and

(c.) wherein the space external of adjacent indentures and between opposing lateral sides contains a resilient foam.

19. A cushioning material structure of a resilient material of a structural form comprising:

(a) a plurality of generally planar and opposing lateral sides, having a plurality of indentures formed in one of the opposing lateral sides in a general configuration of a grid surface in the lateral side,

(b) the indentures being in geometric shapes with walls of structural integrity resulting from their shape and arranged in a grid in repeating patterns that provide a continuum of cushioning performance laterally throughout the structure and

(c) wherein the space external of the indentures and between the opposing lateral sides and the indentures contains a resilient foam.

20. A cushioning structure according to claim 19 wherein the indentures include a plurality of truncated prism forms.

21. A cushioning material according to claim 19 wherein the indentures include a plurality of tube apertures extending from one opposing lateral side to the other opposing lateral side.

22. A cushioning structure according to claim 19 wherein a portion of the indentures comprise a plurality of truncated prism forms;

and wherein the indentures further include a plurality of tube apertures extending from one opposing lateral side to the other opposing lateral side.

23. A cushioning structure according to claim 19 wherein fluid passage means is provided between adjacent indentures for the transfer of a fluid in the indentures when the pressure in one or more indentures is increased as a result of impact shock loads upon the outer surface of a side and the amount of fluid communication between the indentures is controlled at a preselected rate by a valving action of the passage for the fluid communication to provide a preselected dampening for a preselected range of shocks.