Portable workstool

Information

  • Patent Grant
  • 6375258
  • Patent Number
    6,375,258
  • Date Filed
    Thursday, February 17, 2000
    24 years ago
  • Date Issued
    Tuesday, April 23, 2002
    22 years ago
Abstract
A portable workstool suitable for carrying or use by a human subject is provided. The workstool includes a stoolmember having a frame and a pad. A detachable pouch having two handles for portability is connected to the stoolmember. The stool is placed in a functional mode for sitting and working in the conventional fashion. The pouch is configured to provide ergonomic storage and access to tools and the like while providing space-efficient storage of such because the pockets are immediately beneath the user. In particularly preferred embodiments, each pocket has a plurality of cells so that the user may conveniently store and locate tools without breaking visual contact with the work
Description




BACKGROUND OF THE INVENTION




This invention relates to a portable workstool and more particularly to a portable workstool which provides for ergonomic storage and use of tools with optimum space-efficiency.




Workstools have played a very important role in many practical endeavors. Electricians, fishermen and gardeners are only three obvious examples of the nearly infinite uses of the workstool. The conventional workstool, or campstool, suffers from several deficiencies. First, it is not conveniently portable because after folding, it must be separately carried, e.g. by the frame, and so tools or other articles must be separately carried by the user. Further, any tools used must be placed on the ground or stored on some other adaptive surface. This can be inconvenient for three major reasons. First, if there is no suitable storage area for the tools nearby, it may be necessary to place them more than arm's length away, for example in an uneven or tight working space. Secondly, if the tools are placed on the ground, the user must bend over to store or retrieve the tool and such action is often ergonomically undesirable or even impractical. Third, even if the tools may be stored close by, the storage or retrieval of such tools may require visual inspection. In other words, the user may have to glance away from his work site to the general location of the tool storage area in order to retrieve or replace the tool. This is also often undesirable or even impractical with detailed work. What is needed is a workstool which is not only easily portable but one which is functionally superior to a conventional workstool by virtue of being ergonomically advantageous and space-efficient in the utilization of tools.




SUMMARY OF THE INVENTION




In accordance with the present invention, a portable workstool provides convenient portability, ergonomic storage and space-efficiency when in use. The portable workstool is suitable for carrying or use by a human subject, the stoolmember utilizing both a frame and a pad. The frame includes a firs rectangular leg and a second rectangular leg pivotally interconnected. The pad presents a die-cut pattern to form two sleeves slidably connected to the first leg and two sleeves slidably connected to the second leg. The workstool also features a detachable pouch having a substrate with a left side, a right side and a ground side, as well as first and second handles. The pouch also includes fastening structure configured to attach to the four sleeves. The left side and the right side of the pouch each contain a pocket. In preferred embodiments each pocket has a plurality of cells, e.g. three cells on each side.




In functional mode, the two legs are pivoted so that the pad is taut. The two legs are, in effect, placed on a planar surface such as the ground. The taut pad may be securely sat upon with the pouch providing ergonomic and convenient access to the pockets. The workstool is space efficient because the pockets are disposed beneath the human subject.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view of a portable workstool set up in functional mode in accordance with the present invention;





FIG. 2

is a perspective view of the stoolmember alone in functional mode;





FIG. 3

is a perspective view of the detachable pouch alone; and





FIG. 4

is a detailed view of a portion of the portable workstool of FIG.


1


.











DESCRIPTION OF THE PREFERRED EMBODIMENTS




Referring to the drawings in general and

FIG. 1

in particular, a portable workstool


10


is shown in accordance with the present invention. Workstool


10


includes a stoolmember


12


and a detachable pouch


14


. Workstool


10


can be carried in a portable mode or a human subject or user (not shown for ease of illustration) can sit on workstool


10


and utilize pouch


14


in accordance with the invention.




Referring to

FIG. 2

, stoolmember


12


is shown without pouch


14


(see

FIG. 1

) for clarity of illustration. Stoolmember


12


includes a frame


16


and a pad


18


. Frame


16


has a first leg


20


and a second leg


22


. First leg


20


and second leg


22


are pivotally interconnected by pins


24


. Legs


20


,


22


and pins


24


are preferably made of metal or any other suitably rigid and durable material.




First leg


20


includes a pad spar


26


, a ground spar


28


and two support members


30


. It will readily be seen that first leg


20


and second leg


22


are both rectangular in shape.




Second leg


20


includes a pad spar


32


, a ground spar


34


and two support members


36


.




An axial projection


38


of pad spar


32


of second leg


22


is shown at the right side of FIG.


2


. Likewise, an axial projection


40


of ground spar


28


of first leg


20


is also shown to the right of FIG.


2


. It will readily be seen that axial projection


38


and axial projection


40


define and present a plane


42


which is illustrated as a plane segment for ease of illustration.




An axial projection


44


of pad spar


26


of first leg


20


is shown at the left side of FIG.


2


. Likewise, an axial projection


46


of ground spar


34


of second leg


22


is also shown to the left of FIG.


2


. It will readily be seen that axial projection


44


and axial projection


46


define and present a plane


48


which is illustrated as a plane segment for ease of illustration.




Pad


18


has two first-leg sleeves


50


which are axially slidably attached to first leg


20


at pad spar


26


as shown. Pad


18


has two second-leg sleeves


52


which are axially slidably attached to the second leg


22


at pad spar


32


as shown. Pad


18


is preferably formed of a synthetic resin material, but can be made from any suitable material with or without an integrated cushion.




Referring to

FIG. 4

, second-leg sleeves


52


each include a flap


53


and respectively a male pad snap


54




a


and a female pad snap


54




b


. (Note that the first sleeves


50


have associated flaps


53


and respectively a male pad snap


54




a


and a female pad snap


54




b


; such flaps


53


, male pad snap


54




a


and female pad snap


54




b


associated with first sleeves


50


not being shown for economy of illustration; note also that directly across from male pad snap


54




a


as shown in

FIGS. 1 and 4

is female pad snap


54




b


on first sleeve


50


and that directly across from female pad snap


54




b


as shown in

FIGS. 1 and 4

is male pad snap


54




a


on first sleeve


50


.)




Although pad


18


includes structure presenting a die-cut pattern to form two first-leg sleeves


50


and two second-leg sleeves


52


, the two first-leg sleeves


50


permanently, slidably attaching first leg


20


to the remaining portions of the pad


18


, and the two second-leg sleeves


52


permanently, slidably attaching second leg


22


to remaining portions of pad


18


, all in the preferred embodiment, those skilled in the art will readily appreciate that alternative designs without a die-cut pattern could be utilized. For example, in an alternative embodiment (not shown), the first leg sleeves


50


can be formed as a single, continuous sleeve, and the second leg sleeves


52


can be similarly formed as another single, continuous sleeve. Alternatively, pad


18


can be permanently or removably attached to pad spars


20


and


22


or to itself with other suitable fastening means such as snaps, buttons, hooks or Velcro-type fasteners. Also, snaps


54




a


and


54




b


can be attached directly to pad spars


20


and


22


directly or through sleeves


50


and


52


, rather than attached to flaps


53


as shown.




Referring to

FIG. 3

, pouch


14


is shown detached from the rest of workstool


10


. Pouch


14


has a substrate


55


presenting a left side


56


, a right side


58


(see

FIG. 1

) and a ground side


60


(see also FIG.


1


).




Still referring to

FIG. 3

, pouch


14


has fastening structure in the form of two male pouch snaps


62




a


and two female pouch snaps


62




b


(note that only one male pouch snap


62




a


and one female pouch snap


62




b


, both located on left side


56


of pouch


14


are visible in

FIG. 3

due to the angle of viewing but the other male pouch snap


62




a


and female pouch snap


62




b


associated with right side


58


of pouch


14


are visible in

FIG. 1

from a different perspective). It will be readily appreciated that on both sides of pouch


14


male pouch snaps


62




a


and female pouch snaps


62




b


are disposed in complementary fashion to male pad snaps


54




a


and female pad snaps


54




b


. This arrangement of snaps allows pouch


14


to be attached to the stool facing in either direction, while permitting the same snaps


62


to be used to close pouch


14


when it is detached from the stool.




As will be readily appreciated by those skilled in the art, other numbered sets or configurations of snaps may be used and indeed other fastening structure such as velcro or buttons could be used for reversible attachment of pouch


14


to stoolmember


12


.




Left side


56


of pouch


14


includes a left handle


64


and right side


58


of pouch


14


includes a right handle


66


(see

FIG. 1

for right handle


66


). Left side


56


includes a left-side pocket


68


having three cells


70


suitable for storage. Right side


58


includes a right-side pocket


72


having three cells


74


suitable for storage. Different numbers or arrangements of cells (not shown) can alternately be provided. However, it is preferable to have individual cells rather than a large, unitary pocket to organize tools in easily accessible positions, as will be further described below.




Still referring to

FIG. 3

, when carrying workstool


10


in its fully assembled configuration, a human subject will grasp left handle


64


and right handle


66


(it will be noted that right handle


66


is not visible in FIG.


3


and furthermore that pouch


14


is not shown in conjunction with stoolmember


12


). It will be readily appreciated that when the human subject is carrying the workstool


10


, pouch


14


will be in an upright position, as substantially shown in FIG.


3


. The portable mode is beneficial because not only can workstool


10


be easily carried by handles


64


and


66


, but also tools and other objects can be carried inside pouch


14


as at reference numeral


76


illustrated in FIG.


1


. Also, items may be carried in cells


70


and


74


(see

FIG. 1

for cells


74


). In this fashion, workstool


10


can be used as a carrying case in its portable mode.




Referring to

FIG. 1

, workstool


10


is seen in its functional mode as noted above. Workstool


10


is placed in functional mode as any other conventional workstool, notably by pivotally adjusting first leg


20


and second leg


22


to form an oblique angle therebetween and ground spar


28


of first leg


20


and ground spar


34


of second leg


22


are placed on a substantially planar supportive surface such as the ground, then forces exerted by the planar surface on workstool


10


serve to maintain pad


18


in a substantially taut condition and therefore a human subject may securely sit on workstool


10


at pad


18


. In accordance with the invention, when a human user is sitting on workstool


10


he has convenient storage areas in cells


70


and


74


(see

FIG. 3

for cells


70


) as well as inside pouch


14


as shown at reference numeral


76


. Cells


70


and


74


are particularly ergonomically effective because they are at a higher elevation than the ground or other supporting planar surface so the user must not bend or reach as far to retrieve or replace tools. Furthermore, in accordance with the invention, the user can mentally designate a given cell by its position on left side


56


or right side


58


(and even its serial position with respect to the other cells on a given side) so that he may know precisely the location of a particular tool whenever he is ready to retrieve it. Hence, the user is not required to break visual contact with his work site if this is undesirable but may instead readily locate the tool by touch.




Finally and in accordance with the invention, the user need not utilize any further volume than already required by workstool


10


in its functional mode for storage of tools. As seen in

FIG. 2

, substantially parallel planes


42


and


48


describe the outer perimeter of the volume of workstool


10


in functional mode and it will be readily noted that in the preferred embodiment cells


70


and


74


are disposed between planes


42


and


48


and below the human subject when he is sitting on workstool


10


. Hence, the volume already required for workstool


10


in functional mode may also be utilized for tool storage.




While this invention has been described with reference to the specific embodiments disclosed herein, it is not confined to the details set forth and the patent is intended to include modifications and changes which may come within and extend from the following claims.



Claims
  • 1. A portable workstool suitable for carrying or use by a human subject, the workstool comprising:a stoolmember having a frame and a pad, the pad permanently connected thereto, the frame including a first rectangular leg and a second rectangular leg pivotally interconnected, with the pad including structure presenting a die-cut pattern to form two first-leg sleeves and two second-leg sleeves, the two first-leg sleeves permanently, slidably attaching the first leg to a first remaining portion of the pad, and the two second-leg sleeves permanently, slidably attaching the second leg to a second remaining portion of the pad, the first leg including a first pad spar, a first ground spar, and first set of two support members integrally formed therebetween, the first pad spar, the first ground spar, and the two support members collectively defining a first-leg plane, the second leg including a second pad spar, a second ground spar, and second set of two support members integrally formed therebetween, the second pad spar, second ground spar, and the second set of two support members collectively defining a second-leg plane, the pad further including pad-attachment structure disposed between and integrally connecting the two first-leg sleeves and the two second-leg sleeves; and a detachable pouch including, fastening structure operatively configured with the two first-leg sleeves and the two second-leg sleeves, a substrate presenting a left side, a right side and a ground side, a first handle permanently affixed to the left side of the substrate, a second handle permanently affixed to the right side of the substrate, a left-side pocket permanently affixed to the left side of the substrate and featuring a first cell, a second cell and a third cell, such that when the first rectangular leg and the second rectangular leg are pivotally adjusted to form an oblique angle between the first-leg plane and the second-leg plane, and the first pad spar of the first leg and the second pad spar of the second leg are positioned on top of a planar surface so that forces exerted by the planar surface on the workstool maintain the pad in a taut condition, the human subject may sit on the pad with an ergonomically positioned, handle-equipped pouch below the pad.
  • 2. The portable workstool of claim 1, wherein when the workstool is placed in the working position, the first ground spar of the first leg and the second pad spar of the second leg present a first working plane, and the second ground spar of the second leg and the first pad spar of the first leg present a second working plane such that at least one pocket of the detachable pouch is disposed between the first working plane and the second working plane.
  • 3. The portable workstool of claim 1, wherein at least one pocket of the detachable pouch is positioned for easy access by the human subject without undue vertical reaching.
  • 4. The portable workstool of claim 1, wherein the pad includes two male pad snaps and two female pad snaps, one of the male pad snaps disposed on each of the two first-leg sleeves and one of the female pad snaps disposed on each of the two second-leg sleeves, the fastening structure of the detachable pouch including two male pouch snaps and two female pouch snaps operatively configured in complementary fashion with the two male pad snaps and two female pad snaps for reversible snapping action.
  • 5. The portable workstool of claim 1, wherein the substrate is substantially composed of a synthetic resin material.
  • 6. The portable workstool of claim 1, wherein the substrate is configured so that when the detachable pouch is detached from the frame, the detachable pouch is suitable for use as a tote bag.
  • 7. The portable workstool of claim 1, wherein the detachable pouch further includes a right-side pocket permanently affixed to the right side of the substrate and featuring a first cell; a second cell and a third cell.
  • 8. A portable workstool alternately suitable for carrying and sitting upon by a human subject, the workstool comprising:a frame having a first rectangular leg and a second rectangular leg, each of the legs having a pad spar, a ground spar, and two opposite support members connected there between, each of the support members of the first rectangular leg being pivotably attached to one of the support members of the second rectangular leg, such that the legs can be pivoted from a closed position in which the two pad spars are generally adjacent to each other to an open position in which the two pad spars are apart; a pad for supporting the human subject in a sitting position, the pad having two opposite ends each for attaching at a junction to one of the pad spars such that when the legs are pivoted to the open position the pad spans between the two pad spars; a detachable pouch having two opposite sides each removably attached near one of the junctions between the pad and the pad spars, the pouch having an interior cavity for receiving items, the pouch having two handles each fixedly attached to one of the two opposite sides of the pouch for allowing the subject to carry the pouch when the pouch is detached from the junctions, the pouch having a plurality of exterior cells located on at least one of the opposite sides for holding tools in an easily accessible position below one of the pad spars, and wherein fasteners are provided along a top portion of each of the two opposite sides of the pouch for removably attaching to mating fasteners located near the junctions between the pad and the pad spars, the fasteners being arranged such that when the pouch is removed from the workstool legs and pad, each of the fasteners on one of the two opposite sides of the pouch can be removably mated to one of the other fasteners on the opposite side of the pouch to releasably close a top opening of the interior cavity of the pouch, and wherein a first flap and a laterally spaced second flap depends from each of the two pad spars, a male snap being fixedly attached to each of first flaps and a female snap being fixedly attached to each of the second flaps, the first flaps with their male snaps being located diagonally opposite each other and the second flaps with their female snaps being located diagonally opposite each other.
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