None.
The present invention pertains to a compact, light weight, folding stand adapted for use with portable hydraulic hose crimpers designed to crimp a hose fitting to flexible hoses and the like. The purpose of this stand, in its unfolded position, is to position the portable crimping device at a predetermined working height, from a support surface during hose assembly. When not required, the stand is folded substantially flat and secured to an adjoining wall portion of the crimping device for stowage and ease of portability therewith.
The assignee of the present invention, Parker-Hannifin Corporation, of Cleveland, Ohio, U.S.A., manufactures and markets, under the trade name “MiniKrimp” a compact, lightweight, portable, hand-held if so desired, apparatus for crimping a hose fitting to the end of, for example, of thermoplastic, fluorocarbon and rubber hoses, with the structural and operational details of this portable crimping device being are set forth in U.S. Pat. No. 6,715,335 B2 to Huebner et al.
The positioning the portable crimping device a predetermined distance from a base or support surface, during the hose-to-fitting crimping process, allows the bottom surface of the crimping device, where the hose to be crimped is entered into this device, to be free from obstructions, thus improving both the cycle time and the ease of operation.
Thus, there exists a need in the art for a mechanism for raising the portable crimping apparatus to the desired height, the key attributes for which included: low weight; ease of folding and unfolding; the absence of a locking mechanism in the unfolded or working position; a flat folding position on a side surface of the crimping device and ready portability therewith; as well as a simple but sturdy kinematical folding design; and low manufacturing cost.
The patent literature includes folding support devices for everything from flashlights (U.S. Pat. No. 1,658,189 to Embury) to camera tripod support means (U.S. Pat. No. 2,543,352 to Brown), to adjustable support bases for computer devices and the like (U.S. Pat. No. 4,989,813 to Kim et al.), to universal supports for hand operated devices (U.S. Pat. No. 5,207,791 to Scherbarth), and even to a collapsible milk carton holder (U.S. Des. 179,992 to Walker). However, none of these prior art apparatuses, include the novel structures, details and combinations of the present invention.
Accordingly, in order to increase the versatility and ease of operation or use of the portable hydraulic hose crimper the foldable or folding stand of this invention permits, in an unfolded position, the raising of the portable crimper a predetermined working distance or height from a support surface, while in its folded position, being folded substantially flat against and secured to a vertical wall portion of the crimping device.
Specifically, in terms of structure, the foldable stand for a portable crimping device of this invention is adapted to be secured to a horizontal bottom wall surface of the crimping device, with the foldable stand comprising in combination: (a) a base portion, including a pair of spaced, main chassis, longitudinal base members, interconnected, on first ends thereof, via a first transversely directed connecting portion and interconnected, inboard of second ends thereof, via a second transversely directed connecting portion, the base member second ends each having a horizontal coaxial first pivot aperture in a common first pivot axis, the second connecting portion including a pair of laterally separated, coplanar, first stop point folding areas and a circumferentially spaced pair of laterally separated, coplanar, first stop standing point areas; (b) a mounting portion, including a generally ring shaped body portion having a top surface, a bottom surface, a central aperture, a plurality of spaced through bores and a pair of aligned, spaced, attachment bosses, at opposite sides of a front end portion of the body portion, the attachment bosses each including a lateral, vertical attachment portion having an opposed, horizontal coaxial second pivot aperture in a common second pivot axis, parallel with the first pivot axis, each attachment boss including a second stop point folding area, in first common plane, and a circumferentially spaced second stop point standing area, in a second common plane; (c) a pair of elongated cross members, each having a top surface, a bottom surface and first and second ends having first and second through bores, respectively; (d) a first pair of oppositely directed fastening members for pivotally connecting the first ends of the cross members, via the first bores, with respective ones, of the base portion second ends, via the first pivot apertures, thereby permitting relative movement, between the base portion and the cross members, for a first predetermined reflex angle between the first stop point folding areas and the first stop point standing areas; and (e) a second pair of oppositely directed fastening members for pivotally connecting the second ends of the cross members, via the second bores, with respective ones, of the mounting portion attachment bosses, via the second pivot apertures, thereby permitting relative movement between the mounting portion and the cross members, for a second predetermined reflex angle between the second stop point folding areas and the second stop point standing areas.
The first predetermined reflex angle has an angular extent of about 315 degrees, while the second predetermined reflex angle has an angular extent of about 240 degrees.
When the cross members abut the first and second stop point standing areas, respectively, the foldable stand is in an unfolded position. The folding stand, in its unfolded position, utilizes the mass of the portable crimping device, acting via its center of gravity, through the first and second stop point standing areas, to retain the foldable stand in the unfolded position.
When the cross members abut the first and second stop point folding areas, respectively, the foldable stand is in a folded position.
In one variation, one of the mounting portion attachment bosses includes, in an outer end surface thereof, a further bore portion and the base portion first connecting portion includes a further through bore, the further bore and through bore being axially aligned when the foldable stand is in the folded position, with an additional fastening member, extending, through the further through bore into the further bore, being adapted to fixedly retain the base portion to the mounting portion, in the folded position, thus fixedly securing the folding stand, in its folded position, to the portable crimping device and being portable therewith. In the folded position of the folding stand, the folded stand adjoins a front surface portion of the portable crimping device.
In another variation, the attachment boss further bore portion serves as retainer for the additional fastening member when the folding stand is in its unfolded position.
In a further version, the bottom wall surface of the portable crimping device abuts the top surface of the mounting portion and is secured thereto, via a plurality of further fastening members, extending through the plurality of through bores, in the body portion of the mounting portion, into a plurality of aligned bores in the crimping device bottom wall surface.
In a differing version, the first and second pairs of fastening members take the form of stainless steel shoulder bolts.
In yet another version, the first transversely directed connecting portion includes an arced center portion that can serve as an operator handle during folding and unfolding of the foldable stand.
A still further version includes a parallel, auxiliary chassis, longitudinal base member, interconnected, on opposed ends thereof, via further transversely directed connecting portions, with one of the main chassis, longitudinal base members, inboard of the ends thereof. The further connecting portions of the auxiliary chassis base member preferably include a plurality of spaced through bores, the through bores being aligned with matching through bores in the base portion of a hydraulic pump normally mounted on a side surface of the portable crimping device, thereby permitting the mounting of the pump, via suitable fastening members, to the base portion.
In yet a differing version, the ends of bottom surfaces of the main and auxiliary chassis longitudinal base members are provided with respective foot portions, with the lowermost surface of each of the foot portions defining an area in a common plane that, in turn, defines the footprint of the base portion.
Another embodiment of this invention pertains to a folding stand for a portable crimping device, the folding stand being adapted to be secured to the horizontal bottom wall of the crimping device and adapted, in a folded position, to be folded substantially flat against a vertical wall portion of the crimping device, and, in an unfolded position, to vertically raise the crimping device to a predetermined working height from a support surface, wherein the folding stand comprises: a. a base portion, including a pair of spaced main members, connected on front ends thereof, via a transverse, front, connecting portion, and connected, inboard of rear ends thereof, via a transverse, rear, connecting portion, with each base member rear end having a first pivot aperture coaxial with a rear pivot axis, the rear connecting portion including laterally spaced, coplanar, first stop point folding surfaces and an angularly spaced pair of laterally spaced, coplanar, first stop point standing surfaces; b. a mounting portion, including a generally annular body portion, having a top surface, a bottom surface, a central opening, a plurality of spaced through bores and a pair of spaced, opposed attachment bosses, located at opposite sides of a front body portion thereof, each attachment boss including a lateral attachment portion having a second pivot aperture in a common front pivot axis, parallel with the rear pivot axis, each attachment boss including a second stop point folding surface, in a first common plane, and an angularly spaced second stop point standing surface, in a second common plane; c. a pair of elongated cross members, each having a top and bottom surfaces, as well as front and rear ends having front and rear through bores, respectively; d. a pair of oppositely directed rear shoulder bolts for pivotally connecting the rear ends of the cross members, via the rear bores, with respective ones of the base portion rear ends, via the rear pivot apertures, thereby permitting relative movement, between the base portion and the cross members, for an angle of about 315 degrees, between the first stop point folding surfaces and the first stop point standing surfaces; and e. another pair of oppositely directed front shoulder bolts for pivotally connecting the front ends of the cross members, via the front bores, with respective ones of the mounting portion attachment bosses, via the rear pivot apertures, thereby permitting relative movement between the mounting portion and the cross members, for an angle of about 240 degrees, between the second stop point folding surfaces and the second stop point standing surfaces.
In one variation, the cross members substantially abut the first and second stop point surface, respectively, when the folding stand is in an unfolded position, the folding stand, in the unfolded position, utilizing the mass of the crimping device, acting through its center of gravity and the first and second stop point standing surfaces, to retain the stand in the unfolded position.
In another variation, when the cross members abut the first and second stop point folding surfaces, the folding stand is in a folded position. Preferably, one of the attachment bosses of the mounting portion includes, in an outer surface thereof, a further bore portion and the base portion front connecting portion includes a further through bore, the latter and the further bore portion being axially aligned when the folding stand is in its folded position, with a fastening member, extending through the further through bore into the further bore portion, the fastening member being adapted to fixedly retain the base portion to the mounting portion, thus fixedly securing the folding stand to the crimping device.
In a further variation, the bottom wall surface of the crimping device adjoins the top surface of the mounting portion and is secured thereto with a plurality of further fastening members extending through the plurality of through bores in the mounting portion.
A yet another variation includes a parallel longitudinal base member, connected, on respective front and rear ends thereof, via additional transverse connecting portions, with an adjoining one of the main base members, inboard of the ends thereof. The additional transverse connecting portions include a plurality of additional through bores, the through bores being aligned with corresponding through bores in the base portion of a hydraulic pump normally removably mounted on a side surface of the crimping device, thereby permitting the relocation and mounting of the pump, via suitable fasteners, to the base portion.
The previously-described advantages and features, as well as other advantages and features, will become readily apparent from the detailed description of the preferred embodiments that follow.
Turning now to the several drawings, illustrated in the perspective view of
As illustrated in
Turning now to
Continuing now with
Upon the just noted interconnection, cross members 40 can rotate, about shoulder bolts 134, from folded stop point area 65 to standing stop point area 63 and vice versa, through reflex angle 67 (
In terms of operation, once folding stand 20 is released from its locked position, relative to crimping device 22 (
It should also be understood, at this time that the use of preferably lightweight material, such as, for example, an aluminum alloy, for the base portion 36 and mounting portion 38, aids in limiting the weight of folding stand 20 to about four pounds and that the previously described kinematical folding design permits ready unfolding and subsequent refolding thereof. In addition, the minimum size of folding stand 20 contributes to its ease of portability along with crimping device 22, while not interfering with the operation and/or function of crimping device 22, even when stand 20 is fully folded.
It is deemed that one of ordinary skill in the art will readily recognize that the present invention fills remaining needs in this art and will be able to affect various changes, substitutions of equivalents and various other aspects of the invention as described herein. Thus, it is intended that the protection granted hereon be limited only by the scope of the appended claims and their equivalents.