Umbrella frame having folding ear structures

• US 5,158,102 A
• Filed: 03/02/1992
• Issued: 10/27/1992
• Est. Priority Date: 03/02/1992
• Status: Expired due to Term

• Current Assignee: Mccampbell Enterprises Unlimited, Inc.
• Original Assignee: Mccampbell Enterprises Unlimited, Inc.
• Inventors: Lemcke, Harland F.
• Primary Examiner(s): Scherbel, David A.
• Assistant Examiner(s): MAI, LANNA
• Application Number:
  US07/844,153
• Time in Patent Office: 239 Days
• Field of Search: 135/33.2, 135/15.1, 135/16, 135/25 R, 135/26, 135/29, 135/31, 135/27
• US Class Current: 135/16
• CPC Class Codes: A45B 2011/005 characterised by their shape
• CPC Class Codes: A45B 25/02 Umbrella frames

Abstract

An umbrella frame having two collapsibly protractable structures defining ear-like projections. The umbrella frame has a plurality of ribs and associated pivotally attached struts extendable to define a characteristic dome shaped umbrella. The struts are further attached to a runner axially slidable on a central shaft of the umbrella that causes the outward extension of the struts to push the ribs outwardly when the runner is upwardly moved. In addition, two pairs of braces are respectively pivotally attached on one end to opposing struts either at the same point or at separate locations thereon, and extend through respective guide brackets fixedly attached to respective outer ribs. The other ends of the braces extend beyond the outer dome of the umbrella and are pivotally attached to a swivel coupling that causes loop shaped bending of the braces to define outwardly projecting ears from the characteristic dome shaped umbrella when the struts are extended by upwardly moving the runner.

Claims

1. A collapsible umbrella frame comprising:

a shaft with a handle portion on one end thereof;

a crown disposed distal said handle portion;

a plurality of ribs radially spaced about said crown and extending from said crown, said ribs defining an outer contour of the umbrella;

a runner axially movable on said shaft;

a plurality of struts radially spaced about said runner and corresponding in number to said plurality of ribs, said struts connected on one end to said runner and connected on another end to a corresponding rib; and

a loop-shaped frame defining a collapsible projection extending outwardly beyond said ribs, said loop-shaped frame connected and anchored on one end to a strut of said plurality of struts;

whereby as said struts are extended by upward movement of said runner, said loop-shaped frame bows to form a loop-shaped projection.

2. The umbrella of claim 1 comprising two loop-shaped frames connected and anchored on one end to a respective strut of said plurality of struts.

3. The umbrella frame of claim 2, wherein said respective struts are diametrically opposed struts.

4. The umbrella frame of claim 2, wherein said one end of each said loop-shaped frame is connected intermediate opposite ends of said respective strut.

5. The umbrella frame of claim 1, wherein said loop-shaped frame comprises two segments each having another end connected together.

6. The umbrella frame of claim 5, wherein said another ends are pivotally connected together.

7. The umbrella frame of claim 5, wherein said segments include eyelets integrally formed at said one end for pivotally connecting said segments to said strut.

8. The umbrella frame of claim 5, wherein said end of one of said segments is connected approximately intermediate opposite ends of said respective strut, and said one end of another of said segments is connected between said intermediate connection and an associated rib.

9. The umbrella frame of claim 1, further comprising a pair of guides for said loop-shaped frame, said pair of guides attached to and spaced apart on an associated rib, whereby said segments slidably extend through a respective said guide.

10. The umbrella frame of claim 1, wherein said one end of said loop-shaped frame is pivotally connected intermediate opposite ends of said strut.

11. The umbrella frame of claim 10, wherein said stiffening means is a tubular sleeve.

12. The umbrella frame of claim 1, further comprising means for stiffening said loop-shaped frame, said stiffening means being positioned between said strut and said rib.

13. A collapsible umbrella frame comprising:

a shaft with a handle portion on one end thereof;

a crown disposed distal said handle portion;

a plurality of ribs radially spaced about said crown and pivotally extending from said crown, said ribs defining an outer contour of the umbrella;

a runner axially movable on said shaft;

a plurality of struts radially spaced about said runner and corresponding in number to said plurality of ribs, said struts connected on one end to said runner and connected on another end to a corresponding rib; and

a loop-shaped frame defining a collapsible projection extending outwardly beyond said ribs, said loop-shaped frame connected and anchored on one end to a strut, said loop-shaped frame comprising two segments being connected and forming a continuous loop;

whereby as said struts are extended by upward movement of said runner, said loop-shaped frame bows to form a loop-shaped projection.

14. The umbrella frame of claim 13 comprising two loop-shaped frames connected and anchored on one end to a respective strut of said plurality of struts.

15. The umbrella frame of claim 14, wherein said respective struts are diametrically opposed struts.

16. The umbrella frame of claim 13, wherein said end of one of said segments is connected approximately intermediate opposite ends of said respective strut, and said one end of another of said segments is connected between said intermediate connection and an associated rib.

17. The umbrella frame of claim 13, wherein said segments include eyelets integrally formed at each end for pivotally connecting said braces to said struts and to each other.

18. The umbrella frame of claim 13, further comprising a pair of guides for said loop-shape frame, each said pair of guides attached to and spaced apart on an associated rib, whereby said segments slidably extend through a respective said guide.

19. The umbrella frame of claim 13, further comprising means for stiffening said loop-shaped frame, said stiffening means being positioned between said strut and said rib.

20. The umbrella frame of claim 19, wherein said stiffening means is a tubular sleeve.

21. A collapsible umbrella frame comprising:

a shaft with a handle portion on one end thereof;

a crown disposed distal said handle portion;

a plurality of ribs radially spaced about said crown and pivotally extending from said crown, said ribs defining an outer contour of the umbrella;

a runner axially movable on said shaft;

a plurality of struts radially spaced about said runner and corresponding in number to said plurality of ribs, said struts connected on one end to said runner and connected on another end to a corresponding rib;

two loop-shaped frames each defining a collapsible ear-like projection extending outwardly beyond said ribs, each said loop frame connected on one end to a respective strut of said plurality of struts; and

a pair of spaced apart guides for each loop-shaped frame, each said pair of guides attached to an associated rib to guide said frames during expansion and contraction of the umbrella;

whereby as said respective struts are extended by upward movement of said runner, said frames bow to form loop-shaped projections.

22. The umbrella frame of claim 21, wherein said respective struts are diametrically opposed struts.

23. The umbrella frame of claim 21, wherein each loop-shaped frame comprises two segments each having another end connected together.

24. The umbrella frame of claim 23, wherein said end of one of said segments is connected approximately intermediate opposite ends of said respective strut, and said one end of another of said segments is connected between said intermediate connection and an associated rib.

25. The umbrella frame of claim 23, wherein said another ends are pivotally connected together.

26. The umbrella frame of claim 23, wherein each segment extends through a respective said guide.

27. The umbrella frame of claim 21, wherein said one end of each said loop-shaped frame is connected intermediate said respective strut.

28. The umbrella frame of claim 21, wherein said one end of each said loop-shaped frame is pivotally connected intermediate said respective strut.

29. The umbrella frame of claim 21, further comprising means for stiffening said loop-shaped frames, said stiffening means being positioned between said struts and said ribs.

30. The umbrella frame of claim 29, wherein said stiffening means is a tubular sleeve.