Foldable step stool with leg lock and handle

Information

  • Patent Grant
  • 6390238
  • Patent Number
    6,390,238
  • Date Filed
    Friday, August 11, 2000
    24 years ago
  • Date Issued
    Tuesday, May 21, 2002
    22 years ago
Abstract
A step stool includes a frame including a front leg and a rear leg coupled to the front leg for movement relative to the front leg, a handle supported for pivotable movement on the front leg about a pivot axis, and a retainer coupled to the handle to move therewith about the pivot axis and arranged to trap a portion of the rear leg between the handle and the retainer upon movement of the handle to a predetermined position relative to the rear leg to lock the front leg to the rear leg.
Description




BACKGROUND AND SUMMARY OF THE INVENTION




The present invention relates to a step stool, and particularly, to a foldable step stool having legs that move relative to one another between an opened use position and a closed storage position. More particularly, the present invention relates to a foldable step stool provided with a carrying handle for use when the step stool has been folded to assume the closed storage position.




Step stools have a frame and one or more steps that individuals use for elevation when reaching for objects, painting walls, or any everyday task where extra elevation would be helpful. Step stool frames are often foldable for ease of storage while the step stool is not being used.




According to the present invention, a foldable step stool includes a frame having a front leg and a rear leg movable relative to the front leg and a carrying handle supported for pivotable movement on one of the legs about a pivot axis. The step stool further includes a retainer coupled to the handle to move with the handle about the pivot axis to lock the front leg to the rear leg.




In preferred embodiments, the handle includes a pivot rod supported on the front leg for rotation about the pivot axis and a handle grip coupled to the pivot rod. A handle anchor is coupled to the rear leg and formed to include a pair of rod jackets positioned to lie in spaced-apart relation to one another and mate with the pivot rod of the handle when the rear leg is moved to lie alongside the front leg whenever the foldable step stool is collapsed for storage.




The retainer includes a pair of retainer members and each retainer member is coupled to the handle grip. Each retainer member is arranged to trap one of the rod jackets in a fixed position adjacent to the pivot rod after the foldable step stool has been collapsed to mate the rod jackets of the handle anchor with the pivot rod of the handle and the handle is pivoted about the pivot axis to assume a stool-carrying position.




A handle mount is coupled to the front leg and arranged to support the pivot rod of the handle for rotation about the pivot axis. The handle anchor further includes a jacket support coupled to the rear leg and arranged to support the two rod jackets in spaced-apart relation to one another so that they mate with the pivot rod in a position to be trapped by the retainer members during pivoting of the handle about the pivot axis to lock the front and rear legs together.




Additional features of the invention will become apparent to those skilled in the art upon consideration of the following detailed description of preferred embodiments exemplifying the best mode of carrying out the invention as presently perceived.











BRIEF DESCRIPTION OF THE DRAWINGS




The detailed description particularly refers to the accompanying figures in which:





FIGS. 1-4

illustrate a step stool in accordance with the present invention, the step stool including a frame having front and rear legs arranged to lie in an opened use position and showing unmated portions of a leg lock and handle that are mounted on one side of the front and rear legs and configured to be mated as shown in

FIGS. 5-7

to provide a side-mounted carrying handle that operates to lock the front leg to the rear leg when the step stool is folded to assume the closed storage position;





FIG. 1

is a front perspective view of a step stool in the opened use position showing, on the right side of the step stool, a handle anchor coupled to an edge of the rear leg and a carrier lock, with portions broken away, coupled to an edge of the front leg;





FIG. 2

is a front view of the step stool of

FIG. 1

;





FIG. 3

is a rear view of the step stool of

FIGS. 1 and 2

;





FIG. 4

is a side view of the step stool of

FIGS. 1-3

showing the handle anchor coupled to the rear leg and the carrier lock coupled to the front leg;





FIG. 5

is an enlarged perspective view of the carrier lock and handle anchor illustrated in

FIGS. 1-4

wherein the handle anchor includes a pair of C-shaped rod jackets coupled to a jacket support mounted on a portion of the rear leg as shown on the right side of the drawing and the carrier lock includes a handle coupled for pivotable movement to a handle mount fixed on a portion of the front leg as shown on the left side of the drawing, the handle includes a handle grip and a pivot rod coupled to the handle grip and adapted to be mated with the two C-shaped rod jackets when the rear leg is moved to lie alongside the front leg as shown in

FIG. 6

, and the carrier lock further includes two “quarter-round” curved retainer members coupled to the handle grip;





FIG. 6

is a view similar to

FIG. 5

showing mating of the two C-shaped rod jackets of the handle anchor and the pivot rod of the handle prior to rotation of the handle grip (in the direction of the double arrow) to a position locking the front leg to the rear leg;





FIG. 7

is a view similar to

FIGS. 5 and 6

showing movement of the handle to assume a stool-carrying position wherein the quarter-round retainer members on the handle trap the rod jackets between the retainer members and the pivot rod to retain the rear leg in a fixed position alongside the front leg;





FIG. 8

is a view similar to

FIGS. 5-7

showing continued rotation of the handle grip about its axis of rotation to assume a leg-locking “storage” position;





FIG. 9

is a perspective view of the tray of the step stool of

FIGS. 1-4

showing the tray having two drawers and further showing one of the drawers of the tray extended in an opened position and also showing features of the tray such as the tray surface and tray compartments; and





FIG. 10

is a perspective view of the tray of

FIG. 9

showing a bottom portion of the tray and showing the drawers of the tray coupled to a bottom surface of the tray.











DETAILED DESCRIPTION OF THE DRAWINGS




A foldable step stool


10


(shown, for example, in

FIGS. 1-4

) includes a carrier lock


11


that is configured to lock front and rear legs


14


,


16


of step stool


10


together to retain rear leg


16


in a fixed position alongside front leg


14


as shown, for example, in

FIGS. 7 and 8

. Carrier lock


11


is coupled to an edge of front leg


14


as shown, for example, in

FIGS. 1

,


4


, and


5


. A handle anchor


13


adapted to mate with carrier lock


11


is coupled to an edge of front leg


14


also as shown, for example, in

FIGS. 1

,


4


, and


5


. Locking rear leg


16


to front leg


14


facilitates transport and storage of folded step stool


10


.




Carrier lock


11


includes a handle


218


pivotably coupled to a handle mount


214


that is fixed to front leg


14


and a pair of retainer members


258


coupled to handle


218


as shown, for example, in FIG.


5


. Retainer members


258


move in direction


272


in response to pivoting movement of handle


218


(in direction


270


) about pivot axis


271


from an “out-of-the-way” position shown in

FIGS. 5 and 6

to assume a “stool-carrying” position as shown in

FIG. 7

to trap “rod jacket” portions


268


of handle anchor


216


between retainer members


258


and a pivot rod


230


included in handle


214


.




By trapping rod jackets


268


between retainer members


258


and pivot rod


230


as shown in

FIGS. 7 and 8

, handle


218


is “locked” to handle anchor


216


to retain rear leg


16


in a fixed position alongside front leg


14


after step stool


10


has been folded for transport or storage. The legs


14


,


16


can be “unlocked” easily by rotation of handle


218


about pivot axis


271


from either one of the positions shown in

FIGS. 7 and 8

to the position shown in

FIGS. 5 and 6

. When step stool


10


is opened, handle


218


is moved away from handle anchor


216


as shown, for example, in

FIGS. 1 and 4

.




When step stool


10


is closed, handle


218


moves to mate with handle anchor


216


as suggested, for example, in

FIGS. 5 and 6

.




As shown in

FIG. 1

, step stool


10


includes a frame


12


having a front leg


14


and a rear leg


16


, a set of steps


20


coupled to front leg


14


, and a step latch


22


coupled to a top one of steps


20


. Frame


12


of step stool


10


is foldable between an opened use position, shown in

FIGS. 1 and 2

, in which a bottom end


18


of front leg


14


is spaced-apart from a bottom end


24


of rear leg


16


and a closed or collapsed storage position, in which front and rear legs


14


,


16


are folded together.




Frame


12


is converted easily between the use position and the storage position by lifting step latch


22


manually and moving set of steps


20


to a generally vertical position. As steps


20


are pivoted toward the generally vertical position, rear leg


16


pivots automatically toward front leg


14


causing step stool


10


to assume the collapsed, folded storage position.




As shown in

FIG. 1

, front leg


14


of frame


12


includes opposite leg members


26


,


28


each including a bottom end


18


and an opposite top end


30


. A top bar handle portion


32


extends between leg members


26


,


28


and steps


20


are spaced-apart from one another between top bar


32


and bottom end


18


of front leg


14


. Steps


20


include top step


34


, middle step


36


, and bottom step


38


coupled together by a link


40


. While leg members


26


,


28


are preferably constructed of extruded aluminum, it is understood that a wide variety of metallic and nonmetallic materials may be used.




Feet


100


are provided that are formed to extend over ends


18


of leg members


26


,


28


. Each foot


100


includes a base


102


configured to rest upon a generally flat surface (not shown).




As shown in

FIGS. 1 and 2

, top bar


32


includes a top surface


114


extending between leg members


26


,


28


and a hand grip


116


extending from top surface


114


to define a channel


118


sized to receive fingers (not shown) of a user gripping step stool


10


. In addition, top bar


32


includes a shelf


120


spaced-apart from top surface


114


to receive miscellaneous items such as screws, nails, bolts, nuts, etc. It is within the scope of the present disclosure to form shelf


120


to include spaced-apart apertures or recesses (not shown) that are sized to receive tool shafts (not shown).




As shown in

FIGS. 1-4

, a pair of tray links


160


are provided in step stool


10


coupled at a lower end thereof by a pivot pin


162


to an apex of flange


150


(see FIG.


4


). Each tray link


160


is further coupled at an upper end thereof to a flange of the utility tray to pivotably couple the tray and top step


34


together.




Rear leg


16


of frame


12


is coupled to front leg by a bracket


172


, as shown in

FIGS. 1-4

. Bracket


172


lies adjacent to and is pivotably coupled to the utility tray. Bracket


172


further includes a pivot pin


174


to permit pivoting movement of rear leg


16


relative to front leg


14


, although a wide variety of pins, rods, and the like may be used. Rear leg


16


includes first and second rear leg members


29


,


31


, upper cross strut


180


, and a lower cross strut


182


. Cross struts


180


,


182


extend between and are coupled to rear leg members


29


,


31


.




Referring now to

FIGS. 4 and 5

, step stool


10


further includes a side-mounted, hand-tote latch


212


having a handle mount


214


coupled to leg member


28


of front leg


14


, a handle anchor


216


coupled to leg member


31


of rear leg


16


, and a handle


218


pivotally coupled to handle mount


214


. When step stool


10


is in the storage position, handle


218


is formed to couple with handle anchor


216


in order to form hand-tote latch


212


, as shown in FIG.


7


. Hand-tote latch


212


is then positioned for use by user so that step stool


10


may be carried by hand-tote latch


212


to a storage area, for example, as described in detail herein.




Handle mount


214


is coupled to leg member


28


of front leg


14


, as shown in

FIGS. 1-8

. Referring now to

FIGS. 5 and 8

, handle mount


214


is formed to include a base


220


and two fasteners


222


which are shown in FIG.


8


. Base


220


is formed to include a pair of rims


224


forming recessed apertures


226


each having a side wall


227


formed therein. Base


220


is further formed to include a rod-receiving bearing


228


defining a cylindrical passageway (not shown) therethrough. Fasteners


222


are formed to be received within recessed apertures


226


of base


220


to be further received within apertures (not shown) formed within leg member


28


of front leg


14


in order to couple handle mount


214


rigidly to leg member


28


.




Handle


218


, as mentioned before, is coupled to handle mount


214


of hand-tote latch


212


. Handle


218


includes a handle grip


238


and a pivot rod


230


having a first end


232


, an opposite end (not shown), and a cylinder-shaped middle portion


236


therebetween. Pivot rod


230


is formed to be received within the passageway formed in rod-receiving bearing


228


of base


220


so that middle portion


236


and rod-receiving bearing


228


are positioned to engage one another. Pivot rod


230


is pivotably movable within the passageway and relative to handle mount


214


about a pivot axis


271


.




Handle grip


238


is coupled rigidly to pivot rod


230


at first and second ends


232


,


234


of pivot rod


230


. Handle grip


238


is formed to include grip portion


240


, a first arm or grip support


242


coupled to grip portion


240


and first end


232


of pivot rod


230


, and a second arm or grip support


244


positioned to lie in spaced-apart relation to first arm


242


and coupled to grip portion


240


and second end


234


of pivot rod


230


. Grip portion


240


is firther formed to include a first end


246


, a second end


248


, and a textured member


250


having indentations


252


.




Each of the first and second arms


242


,


244


of handle grip


238


are formed to include a distal end


254


coupled to respective first and second ends


246


,


248


of the grip portion of handle grip


238


and a proximal end


256


rigidly coupled to respective first and second ends


232


,


234


of pivot rod


230


. Each proximal end


256


of first and second arms


242


,


244


is formed to include an aperture (not shown) for receiving each respective first and second end


232


,


234


of pivot rod


230


therein. Handle


218


further includes a pair of retainer members


258


coupled to first and second arms


242


,


244


. Each retainer member


258


is a “quarter-round” flange forming a partial arc shape and is positioned to extend out from each proximal end


256


, as shown, for example, in

FIGS. 5 and 6

.




Handle anchor


216


is coupled to leg member


29


of rear leg


16


as shown in

FIGS. 1-8

. Referring now to

FIG. 5

, handle anchor


216


is formed to include a jacket support


260


and two fasteners


262


similar to the two fasteners


222


of handle mount


214


. Jacket support


260


of handle anchor


216


is formed to include a pair of rims


264


forming recessed apertures


266


, each having a side wall


267


formed therein. Fasteners


262


are formed to be received within recessed apertures


266


of jacket support


260


of handle anchor


216


to be further received within apertures (not shown) formed within leg member


31


of rear leg


16


in order to couple handle anchor


216


rigidly to leg member


31


.




Handle anchor


216


is further formed to include a pair of C-shaped rod jackets


268


coupled to jacket support


260


and formed to partially receive middle portion


236


of pivot rod


230


therein, as shown in

FIGS. 6-8

. Each rod jacket


268


is formed to include a concave inner surface


269


defining a channel receiving a portion of the pivot rod


230


therein when rear leg


16


is locked to front leg


14


as shown, for example, in

FIGS. 5 and 6

.




In operation, handle anchor


216


, coupled to rear leg


16


, is positioned to lie in spaced-apart relation to handle mount


214


which is coupled to front leg


14


and to handle


218


when step stool


10


is in the opened, use position, as shown in

FIGS. 1 and 4

. When step stool


10


is in the closed, storage position, rear leg


16


and front leg


14


are positioned to lie alongside one another, as shown, for example, in FIG.


6


. C-shaped rod jackets


268


are positioned to lie in spaced-apart relation to one another so that once step stool


10


is in the closed position and C-shaped rod jackets


268


are positioned to engage middle portion


236


of pivot rod


230


, rod-receiving bearing


228


of handle mount


214


is positioned to lie between each C-shaped rod jacket


268


of handle mount


216


.




To lock leg member


28


of front leg


14


to leg member


31


of rear leg


16


, hand-tote latch


212


is “secured” by rotating handle


218


in direction


270


about a pivot axis


271


, as shown in FIG.


6


. In order to rotate handle


218


, a user grasps grip portion


240


of handle grip


238


and rotates grip portion


240


in direction


270


. Handle grip


238


and pivot rod


230


are united to rotate in unison with one another. As further noted by arrows


272


shown in

FIG. 6

, retainer members


258


coupled to proximal end


256


of first and second arms


242


,


244


are also urged to rotate about pivot axis


271


so that each retainer member


258


is positioned to lie above and thus trap each respective C-shaped rod jacket


268


, as shown in

FIG. 7

, so that a portion of each C-shaped rod jacket


268


is trapped between the ends of retainer member


258


. Each rod jacket


268


has a convex outer surface


276


configured to mate with a curved inner surface


265


of its companion retainer member


258


as shown, for example, in

FIGS. 5 and 6

. Once each retainer member


258


is positioned to trap each respective C-shaped rod jacket


268


, hand-tote latch


212


is in a “locked” position and front leg


14


is thus “locked” to rear leg


16


.




As shown in

FIG. 7

, handle


218


is placed in a stool-carrying, upright position in order to secure hand-tote latch


212


. When handle


218


is in the upright position, a user may grasp grip portion


240


to carry step stool


10


to a storage area, for example. When step stool


10


is being stored, handle


218


may be further rotated in direction


270


so that grip portion


240


of handle


218


is positioned to lie adjacent leg member


31


of rear leg


16


, as shown in FIG.


8


. When handle


218


is positioned to lie adjacent to leg member


31


, grip portion


240


is generally out of the way and step stool


10


is ready for storage.




In addition to hand-tote latch


212


, step stool


10


is further formed to include tray


280


, as shown in

FIGS. 9 and 10

. Tray


280


is formed to include a palate


282


having a top surface


284


, a bottom surface


286


, a front wall


288


, a rear wall


290


, and two side walls


292


each positioned to extend between front wall


288


and rear wall


290


. Front wall


288


, rear wall


290


, and each side wall


292


are coupled to and positioned to extend from top surface


284


. Tray


280


is further formed to include a first mount


294


and a second mount


296


coupled to top surface


284


and front wall


288


so that front wall


288


is positioned to lie between each of the first and second mounts


294


,


296


. First and second mounts


294


,


296


are each coupled to respective brackets


172


, as shown in FIG.


9


.




Tray


280


is formed to include many structural features. For example, top and bottom surfaces


284


,


286


cooperate to define a flat portion


298


of palate


282


further defined by and positioned to lie between ridges


300


. Each side wall


292


, ridge


300


, and a portion of rear wall


290


are formed to define compartments


302


separated from each other by dividers


304


, as shown in FIG.


9


. Palate


282


is further formed to include a cross-bar


306


defined by front wall


288


, a portion of top surface


284


, and inner wall


308


. Cross-bar


306


is formed to include a circular rim


310


defining an aperture


311


formed to extend through cross bar


306


. Cross-bar


306


is further formed to include two additional compartments


312


defined by walls


314


, as shown in FIG.


9


.




Referring now to

FIG. 10

, tray


280


is further formed to include two drawers


320


slidably coupled to bottom surface


286


of palate


282


. Each drawer


320


is formed to include a container


322


, a lid


324


formed to cover container


322


, and a pair of side brackets


326


. Each pair of side brackets


326


is coupled to bottom surface


286


of palate


282


and positioned to lie in spaced-apart relation to each other.




Each container


322


is defined by a rear wall


328


, a front wall


330


, a bottom


331


, and side walls


332


positioned to lie in spaced-apart relation to one another and coupled to each of the front wall


330


, rear wall


328


, and bottom


331


. Each container


322


is further formed to include an outer rim


333


extending about front wall


330


and side walls


332


, as shown in

FIGS. 9 and 10

.




Each lid


324


of each drawer


320


is formed to define a grip


334


in order to allow a user to open and close lid


324


relative to container


322


. Each container


322


is further formed to include multiple C-shaped brackets


336


coupled to an inner surface


338


of each side wall


332


, as shown in FIG.


9


. Each C-shaped bracket


336


defines a channel


340


formed to receive lid


324


therein.




Although the invention has been described in detail with reference to certain preferred embodiments, variations and modifications exist within the scope and spirit of the invention as described and defined in the following claims.



Claims
  • 1. A step stool comprisinga frame including a front leg and a rear leg coupled to the front leg for movement relative to the front leg, a handle supported for pivotable movement on the front leg about a pivot rod, and a retainer coupled to the handle to move therewith about the pivot rod and arranged to clampingly trap a portion of the rear leg between the rod and the retainer upon movement of the handle to a predetermined position relative to the rear leg to lock the front leg to the rear leg.
  • 2. The step stool of claim 1, wherein the rear leg includes a leg member and a handle anchor coupled to the leg member and configured to include the portion of the rear leg trapped between the rod and the retainer.
  • 3. The step stool of claim 2, wherein the pivot rod is supported to rotate about a pivot axis and a handle grip coupled to the pivot rod to rotate therewith and the portion of the rear leg is a rod jacket formed to include a concave inner surface defining a channel receiving a portion of the pivot rod therein when the rear leg is locked to the front leg.
  • 4. The step stool of claim 3, wherein the handle anchor further includes a jacket support coupled to the leg member and arranged to support the rod jacket in spaced-apart relation to the leg member and in confronting relation to the portion of the pivot rod upon movement of the rear leg to a position alongside the front leg.
  • 5. The step stool of claim 3, wherein the portion of the pivot rod is cylinder-shaped, the rod jacket is a C-shaped member having a convex outer surface, and the retainer includes a curved inner surface configured to mate with the convex outer surface of the rod jacket.
  • 6. The step stool of claim 3, wherein the handle grip includes a grip portion arranged to lie in spaced-apart parallel relation to the pivot rod and a pair of grip supports coupled to the grip portion and the pivot rod to maintain the grip portion in a fixed position relative to the pivot rod, and the retainer is coupled to at least one of the grip supports and arranged to define a space located between the retainer and the pivot rod adapted to receive the rod jacket therein upon movement of the handle relative to the rear leg to the predetermined position.
  • 7. The step stool of claim 1, wherein the handle includes a pivot rod supported to rotate about a pivot axis and a handle grip coupled to the pivot rod to rotate therewith and the retainer is coupled to the handle grip and arranged to define a space between the retainer and the pivot rod adapted to receive the portion of the rear leg therein upon movement of the handle relative to the rear leg to the predetermined position.
  • 8. The step stool of claim 7, wherein the pivot rod includes a cylinder-shaped portion, the portion of the rear leg is a C-shaped member including a concave inner surface shaped to mate with the cylinder-shaped portion of the pivot rod and a convex outer surface, and the retainer includes a curved inner surface shaped to mate with the convex outer surface of the C-shaped member.
  • 9. The step stool of claim 7, wherein the rear leg includes a leg member and a handle anchor coupled to the leg member and configured to include the portion of the rear leg trapped between the handle and the retainer.
  • 10. The step stool of claim 1, wherein the rod has a curved exterior surface and the portion of the rear leg is a rod jacket formed to include a concave inner surface defining a channel receiving the curved exterior surface of the rod therein when the rear leg is locked to the front leg.
  • 11. The step stool of claim 10, wherein the rod jacket is a C-shaped member having a convex outer surface and the retainer includes a curved inner surface configured to mate with the convex outer surface of the rod jacket.
  • 12. The step stool of claim 10, wherein the handle further includes a grip portion adapted to be gripped by a person and a grip support arranged to interconnect the grip portion and the rod and the retainer is coupled to the grip support and arranged to define a space located between the retainer and the rod and adapted to receive the rod jacket therein upon movement of the handle relative to the rear leg to the predetermined position.
  • 13. A step stool comprisinga frame including a front leg and a rear leg coupled to the front leg for movement relative to the front leg, a handle, a handle mount coupled to the front leg and arranged to support the handle for pivotable movement about a pivot rod, a handle anchor coupled to the rear leg and arranged to mate with the handle upon movement of the rear leg to lie alongside the front leg, and a retainer coupled to the handle to move therewith about the pivot rod and arranged to clampingly trap a portion of the handle anchor between the rod and the retainer upon movement of the handle about the pivot axis to assume a stool-carrying position when the handle anchor is mated to the handle.
  • 14. The step stool of claim 13, wherein the pivot rod is coupled to the handle mount to rotate about a pivot axis and a handle grip coupled to the pivot rod to rotate therewith and the retainer is coupled to the handle grip to rotate therewith.
  • 15. The step stool of claim 14, wherein the retainer is positioned to lie in spaced-apart relation to the pivot rod to define a space therebetween and the portion of the handle anchor is positioned to lie in the space upon movement of the handle about a pivot axis to assume a stool-carrying position when the handle anchor is mated to the handle.
  • 16. The step stool of claim 15, wherein the pivot rod includes a cylinder-shaped portion, the portion of the handle anchor is a C-shaped member including a concave inner surface shaped to mate with the cylinder-shaped portion of the pivot rod and a convex outer surface, and the retainer includes a curved inner surface shaped to mate with the convex outer surface of the C-shaped member.
  • 17. The step stool of claim 13, wherein the handle mount includes a base coupled to the front leg and a bearing coupled to the base and formed to include a passageway therein, the handle includes the pivot rod arranged to extend through the passageway and to rotate about a pivot axis and a handle grip coupled to the pivot rod to rotate therewith, and the retainer is coupled to the handle grip to move therewith about the pivot axis.
  • 18. The step stool of claim 17, wherein the portion of the handle anchor is defined by a pair of rod jackets, each rod jacket is formed to include a concave inner surface defining a channel receiving a portion of the pivot rod therein when the rear leg is locked to the front leg, and the rod jackets are arranged to lie in spaced-apart relation to one another to receive the bearing therebetween when the rear leg is locked to the front leg.
  • 19. The step stool of claim 18, wherein the handle grip includes a grip portion arranged to lie in spaced-apart parallel relation to the pivot rod and a pair of grip supports coupled to the grip portion and the pivot rod to maintain the grip portion in a fixed position relative to the pivot rod and the retainer includes a first retainer member coupled to a first of the grip supports and arranged to trap one of the rod jackets between the first retainer member and one portion of the pivot rod upon movement of the handle about the pivot axis to assume the stool-carrying position when the handle anchor is mated to the handle and a second retainer member coupled to a second of the grip supports and arranged to trap another of the rod jackets between the second retainer member and another portion of the pivot rod upon movement of the handle about the pivot axis to assume the stool-carrying position when the handle anchor is mated to the handle.
  • 20. The step stool of claim 17, wherein the portion of the handle anchor is a rod jacket formed to include a concave inner surface defining a channel receiving a portion of the pivot rod therein when the handle anchor is mated to the handle.
  • 21. The step stool of claim 20, wherein the portion of the pivot rod is positioned to lie between the base and the rod jacket and the rod jacket is positioned to lie between the handle grip and the bearing when the handle anchor is mated to the handle.
  • 22. A step stool comprisinga frame including a front leg and a rear leg coupled to the front leg for movement relative to the front leg, the front leg including a longitudinal leg coupled to the rear leg and adapted for engagement with a foundation, a handle coupled to the front leg for pivotable movement about a pivot axis that is parallel to a longitudinal axis of the longitudinal leg, and a portion of the handle including locking means for locking the rear leg to the handle when the rear leg is positioned to lie alongside the front leg in response to movement of the handle relative to the front leg to retain the rear leg in a fixed position alongside the front leg.
  • 23. The step stool of claim 22, wherein the locking means includes a handle anchor coupled to the rear leg and a retainer coupled to the handle.
  • 24. The step stool of claim 23, wherein the handle includes a pivot rod supported for rotation on the front leg about a pivot axis and a handle grip coupled to the pivot rod to rotate therewith and the retainer is coupled to the handle grip to move therewith about the pivot axis and arranged to trap a portion of the handle anchor between the pivot rod and the retainer upon movement of the handle about the pivot axis to assume a stool-carring position when the rear leg lies in the fixed position alongside the front leg.
  • 25. The step stool of claim 23, wherein the handle includes a pivot rod supported for rotation on the front leg, a grip portion arranged to lie in spaced-apart parallel relation to the pivot rod, and a pair of grip supports coupled to the grip portion and the pivot rod to maintain the grip portion in a fixed position relative to the pivot rod, and the retainer is coupled to at least one of the grip supports.
  • 26. The step stool of claim 23, wherein the handle includes a pivot rod supported for pivotable movement on the front leg about a pivot axis, the handle anchor includes a rod jacket configured to mate with the pivot rod when the rear leg lies in the fixed position alongside the front leg, and the retainer is arranged to trap the rod jacket between a portion of the pivot rod and the retainer upon movement of the handle about the pivot axis to assume a stool-carrying position when the rear leg lies in the fixed position alongside the front leg.
  • 27. The step stool of claim 26, wherein the portion of the pivot rod is cylinder-shaped, the rod jacket is a C-shaped member having a convex outer surface, and the retainer includes a curved inner surface configured to mate with the convex outer surface of the rod jacket.
  • 28. The step stool of claim 22, wherein a portion of the locking means is located on the handle.
  • 29. A step stool comprising a frame including a front leg and a rear leg movable relative to the front leg between an opened, use position and a closed, storage position, the front leg extending longitudinally and coupled to the rear leg, a handle supported for pivotable movement on one of the legs about a pivot axis that is parallel to a longitudinal axis of the front leg and a retainer carried by the handle to move with the handle about the pivot axis to lock the front leg to the rear leg in the collapsed, storage position so that the step stool can be carried using the handle.
  • 30. The step stool of claim 29, wherein the handle includes a handle grip and a pivot rod that is coupled to the handle grip and defines the pivot axis and the retainer is coupled to the handle grip to move with the handle grip as the handle grip pivots about the pivot axis.
  • 31. The step stool of claim 30, wherein the rear leg includes a handle anchor formed to include a channel sized to receive the pivot rod therein and the retainer is configured to block movement of the handle anchor away from the pivot rod in response to movement of the handle grip about the pivot axis when the front and rear legs are in the collapsed, storage position.
Parent Case Info

This claims priority under 35 U.S.C. §119(e) to U.S. Provisional Application Ser. No. 60/149,370, filed Aug. 13, 1999, which is expressly incorporated by reference herein.

US Referenced Citations (29)
Number Name Date Kind
1557490 Videtta Oct 1925 A
1817233 Bumgardner Aug 1931 A
2776856 Ingram Nov 1957 A
2873995 Turner Feb 1959 A
2908362 Burtchaell Oct 1959 A
2967730 Vann Jan 1961 A
2997326 Daum Aug 1961 A
3718242 Larson Feb 1973 A
3892343 Warner Jul 1975 A
4483415 Disston et al. Nov 1984 A
4485892 Maloney et al. Dec 1984 A
4707883 Irani et al. Nov 1987 A
4733882 Kassai Mar 1988 A
4842315 Nordmeyer Jun 1989 A
5161843 Baldwin Nov 1992 A
5210904 Pratt May 1993 A
5232796 Baumgartner Aug 1993 A
5511285 Bush et al. Apr 1996 A
5762163 Kain Jun 1998 A
5823564 Kettler Oct 1998 A
5937968 Gibson et al. Aug 1999 A
5979928 Kuo Nov 1999 A
6000497 Kain et al. Dec 1999 A
6026933 King et al. Feb 2000 A
6039149 Bedja Mar 2000 A
6062587 Cabagnero May 2000 A
6073945 Cheng Jun 2000 A
6073957 Lan Jun 2000 A
6155740 Hartenstine Dec 2000 A
Provisional Applications (1)
Number Date Country
60/149370 Aug 1999 US