Tailgate sealing gasket

• US 20060006686A1
• Filed: 09/16/2005
• Published: 01/12/2006
• Est. Priority Date: 06/08/2000
• Status: Active Grant

• Current Assignee: Charles M. Schmeichel
• Original Assignee: Charles M. Schmeichel
• Inventors: Schmeichel, Charles M.
• Granted Patent: US 7,182,384 B2
• Time in Patent Office: Days
• US Class Current: 296/50
• CPC Class Codes: B60J 10/248 having two or more tubular cavities, e.g. formed by partition walls
• CPC Class Codes: B60J 10/34 using adhesives
• CPC Class Codes: B60J 10/45 Assembling sealing arrangements with vehicle parts
• CPC Class Codes: B60J 10/80 specially adapted for opening panels, e.g. doors for non-fixed roofs B60J10/90
• CPC Class Codes: B60J 10/84 arranged on the vehicle body
• CPC Class Codes: Y10S 277/921 Closure or weather strip seal

Abstract

A sealing gasket for sealing gaps adjacent to a pickup truck is provided. In alternate embodiments a combination pickup truck and sealing gasket is also provided. The sealing gasket of the present invention comprises an elongated member made of a deformable and a somewhat resilient polymeric material. The polymeric material is preferably a closed cell sponge material made of one of a number of polymeric materials which are the somewhat flexible, resilient, water resistant and the like. The cross-section of the elongated member, if divided into two parts, includes a generally triangular portion and a generally semi-circular portion which come together to form a teardrop-like shape. The elongated member preferably has a first lumen which is generally circular in shape when the sealing gasket is undeformed, and preferably a second lumen which has two converging tear surfaces which converge to join at one end and join to an arcuate inner surface at the other end. This sealing gasket is uniquely designed to be both resilient and deformable in a manner which enables the sealing gasket to be used in a variety of different orientations and positions to seal gaps between a pickup truck tailgate and other portions of the pickup truck through which dust and moisture may pass if the gaps are not filled.

Claims

1. A sealing gasket for attachment to an attachment surface of an object, the sealing gasket comprising:

an elongated member made of a deformable and at least somewhat resilient polymeric material;

the elongated member defining a lumen passing through at least a length of the elongated member;

the elongated member having a first undeformed configuration, the first undeformed configuration having a cross-section through a plane that is perpendicular to the length of the elongated member;

the cross-section having a first cross-sectional shape having two portions at opposite ends of the cross-section, a first semi-circular portion containing a void defining the lumen as the lumen passes through the cross-section and a second narrower portion having two generally converging sides;

the elongated member having a plurality of outer surfaces, a first outer surface that is a generally curved surface located at a first end of the cross-section proximate the generally first semi-circular portion, and second and third outer surfaces that are generally flat surfaces that extend away from the first end along the respective converging sides of the second narrower portion towards a second end of the cross-section where the respective converging sides meet, the first outer surface being curved toward the second and third outer surfaces at opposite ends of the first outer surface; and

the second and third outer surfaces generally converging toward one another as they extend away from the first outer surface so that the first cross-section is increasingly smaller in width as it extends along the second triangular portion, toward the second end;

an adhesive strip attached to the elongated member along a generally flat outer surface selected from the group consisting of the second and third outer surfaces, the adhesive strip providing a sealant for adherence to the attachment surface of the object;

the adhesive strip extending along the flat surface of the elongated member only enough to permit the generally flat outer surface of the second portion to become attached to the object, when adhered thereto, in a manner in which the first semi-circular portion and a first portion of the second triangular section proximate the lumen can remain unattached to the object when the adhesive strip is completely adhered thereto and the lumen proximate first semi-circular portion can extend outwardly beyond the attachment surface of the object to which the remaining second triangular section is attached.

2. The sealing gasket of claim 1, the polymeric material being a closed cell sponge material;

wherein the polymeric material is an extruded polymeric material which contains microscopic pockets containing a gas.

3. The sealing gasket of claim 1, wherein the lumen is a first lumen and the elongated member defines a second lumen.

4. The sealing gasket of claim 3, the second lumen having a generally triangular cross-sectional shape when the elongated member is in the first undeformed configuration, except that a first side of the generally triangular cross-sectional shape of the second lumen, proximate an internal wall separating the first lumen from the second lumen, is generally rounded so as to conform generally to the rounded shape of the first lumen, which shape is generally partially reciprocated by the first side.

5. The sealing gasket of claim 4, wherein the second lumen is defined by three inner surfaces, a generally arcuate inner surface proximate the first side of the second lumen and two generally flat inner surfaces which converge together as each flat inner surface extends away from the generally arcuate inner surface.

6. A combination pickup truck and sealing gasket comprising:

a pickup truck having a cargo box including a truck bed, a pair of side panels and a tailgate, the tailgate having an opened and a closed position with respect to a truck bed and the respective side panels; and

a sealing gasket secured to the pickup truck to fill gaps existing between the tailgate and at least one of the group consisting of an end of the truck bed and one of the respective side panels;

the sealing gasket including;

an elongated member made of a deformable and at least somewhat resilient polymeric material;

the elongated member defining a first lumen passing through at least a length of the elongated member;

the elongated member having a first undeformed configuration, the first undeformed configuration having a first cross-section through a plane that is perpendicular to the length of the elongated member;

the first cross-section having a first cross-sectional shape having two portions which are joined together, a first semi-circular portion containing a void defining the first lumen as the first lumen passes through the first cross-section and a second triangular portion having two converging sides;

the first semi-circular portion and the second triangular portion combining to form a generally teardrop-shaped cross-sectional shape;

the elongated member having a plurality of outer surfaces, a first outer surface that is a generally curved surface located at a first end of the first cross-section proximate the generally first semi-circular portion, and second and third outer surfaces that are generally flat surfaces which extend away from the first end along the converging sides of the second triangular portion towards a second end of the first cross-section where the respective converging sides meet, the first outer surface being curved toward the second and third outer surfaces at opposite ends of the first outer surface; and

the second and third outer surfaces generally converging toward one another as they extend away from the first outer surface so that the first cross-section is smaller in width at the second end than at a junction between the first outer surface and the second and third outer surfaces;

an adhesive strip attached to the elongated member along a generally flat outer surface selected from the group consisting of the second and third outer surfaces, the adhesive strip providing a sealant for adherence to the attachment surface of the object;

the adhesive strip extending along the flat surface of the elongated member only enough to permit the generally flat outer surface of the second portion to become attached to the object, when adhered thereto, in a manner in which the lumen containing first semi-circular portion can remain unattached to the object when the adhesive strip is adhered thereto and the first lumen containing first semi-circular portion can extend outwardly beyond the attachment surface of the object to which the second triangular section is attached.

7. The combination pickup truck and sealing gasket of claim 6, the polymeric material being a closed cell sponge material;

wherein the polymeric material is an extruded polymeric material which contains microscopic pockets containing a gas.

8. The combination pickup truck and sealing gasket of claim 6, wherein the elongated member defines a second lumen.

9. The combination pickup truck and sealing gasket of claim 8, wherein the second lumen has a generally triangular cross-sectional shape when the elongated member is in the first undeformed configuration, except that a first side of the generally triangular cross-sectional shape of the second lumen, proximate an internal wall separating the first lumen from the second lumen, is generally rounded so as to conform generally to the rounded shape of the first lumen, which shape is generally partially reciprocated by the first side.

10. The combination pickup truck and sealing gasket of claim 9, wherein the second lumen is defined by three inner surfaces, a generally arcuate inner surface proximate the first side of the second lumen and two generally flat inner surfaces which converge together as each flat inner surface extends away from the generally arcuate inner surface.

11. A method of sealing gaps between parts of a pick-up truck cargo box, the pick-up truck cargo box having a tailgate that can be oriented in a closed position and in an open position;

the method comprising the steps of;

providing a sealing gasket;

the sealing gasket including;

an elongated member made of a deformable and at least somewhat resilient polymeric material;

the elongated member defining a first lumen passing through at least a length of the elongated member;

the elongated member having a first undeformed configuration, the first undeformed configuration having a first cross-section through a plane that is perpendicular to the length of the elongated member;

the first cross-section having a first cross-sectional shape having two portions which are joined together, a first semi-circular portion containing a void defining the first lumen as the first lumen passes through the first cross-section and a second triangular portion having two converging sides;

the first semi-circular portion and the second triangular portion combining to form a generally teardrop-shaped cross-sectional shape;

the elongated member having a plurality of outer surfaces, a first outer surface that is a generally curved surface located at a first end of the first cross-section proximate the generally first semi-circular portion, and second and third outer surfaces that are generally flat surfaces which extend away from the first end along the converging sides of the second triangular portion towards a second end of the first cross-section where the respective converging sides meet, the first outer surface being curved toward the second and third outer surfaces at opposite ends of the first outer surface; and

the second and third outer surfaces generally converging toward one another as they extend away from the first outer surface so that the first cross-section is smaller in width at the second end than at a junction between the first outer surface and the second and third outer surfaces;

an adhesive strip attached to the elongated member along a generally flat outer surface selected from the group consisting of the second and third outer surfaces, the adhesive strip providing a sealant for adherence to the attachment surface of the object;

the adhesive strip extending along the flat surface of the elongated member only enough to permit the generally flat outer surface of the second portion to become attached to the object, when adhered thereto, in a manner in which the lumen containing first semi-circular portion can remain unattached to the object when the adhesive strip is adhered thereto and the first lumen containing first semi-circular portion can extend outwardly beyond the attachment surface of the object to which the second triangular section is attached; and

sealing the adhesive strip to a first portion of the pick-up truck cargo box in such a position that the sealing gasket will come into contact with a second portion of the pick-up truck cargo box when the tailgate is in a closed position.

12. The method of sealing gaps between parts of a pick-up truck cargo box of claim 11, wherein the step of sealing further includes the steps of:

selecting an appropriate first length of the sealing gasket for application to a first part of the pick-up truck; and

sealing the first length of the sealing gasket to the first part of the pick-up such that the first length of the sealing gasket is positioned to fill a first gap between the first part of the pick-up truck and a second part of the pick-up truck when the tailgate is in the closed position.

13. A sealing gasket for sealing gaps between the first and second parts of a manufactured item;

the sealing gasket comprising;

an elongated member made of a deformable and at least somewhat resilient polymeric material;

the elongated member defining a lumen passing through at least a first length of the elongated member;

the elongated member having a first undeformed configuration in which a first cross-section of the elongated member, residing in a plane that is perpendicular to the first length, has two portions, a first semi-circular portion shaped generally like a semi-circle and at least partially containing the lumen and a second triangular portion having two converging sides;

the lumen having a generally rounded cross-sectional shape when the elongated member is in the first undeformed configuration;

wherein the elongated member has a plurality of outer surfaces, a first outer surface being a generally curved surface located at a first end of the first cross-section proximate the first semi-circular-portion and second and third outer surfaces that extend away from the first end along the respective converging sides of the second triangular portion toward a second end of the first cross-section where the second and third outer surfaces meet the second and third outer surfaces generally converging toward one another as they extend away from the first end such that the first cross-section becomes increasingly smaller in width as the respective second and third outer surfaces converge together proximate the second end; and

an adhesive strip attached to and running along a surface selected from the group consisting of the second and the third outer surfaces.

14. The sealing gasket of claim 13, wherein the lumen is a first lumen and the elongated member defines a second lumen, the second lumen having a generally triangular cross-sectional shape when the elongated member is in the first undeformed configuration, except that a first side of the generally triangular cross-sectional shape of the second lumen, proximate an internal wall separating the first lumen from the second lumen, is generally rounded so as to conform generally to the rounded shape of the first lumen, which shape is generally partially reciprocated by the first side.

15. The sealing gasket of claim 14, wherein the second lumen is defined by three inner surfaces, a generally arcuate inner surface proximate the first side of the second lumen and two generally flat inner surfaces which converge together as each flat inner surface extends away from the generally arcuate inner surface.

16. The sealing gasket of claim 13, wherein the elongated member is deformable so that the first configuration can be deformed such that the lumen will have a different cross-sectional shape than that of the lumen in the first configuration.

17. The sealing gasket of claim 13, the polymeric material being a closed cell sponge material;

wherein the polymeric material is an extruded polymeric material which contains microscopic pockets containing a gas.

18. The sealing gasket of claim 13, the adhesive strip including a sealing surface having a sealant to adhere the sealing gasket to a part selected from the group consisting of the first and second parts.

19. The sealing gasket of claim 18, wherein the adhesive strip is secured proximate the second end and is removed from a portion of the selected surface most proximate the first lumen.