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Patent Abstract
A hand truck or dolly for transporting panels, doors, windows, sheetrock,
folding tables, mattresses or the like. The hand truck has a base
connected to at least four wheels arranged to balance cargo in transport
and unloading. A distinguishing feature of the hand truck is a duel
cargo holder that allows for circular or small items to be transported
at same time as larger items. Invention comprises of a frame having
an upper and lower portion supported by a plurality of wheels. Directional
movement is accomplished by handle. Strength and balance of the
invention exceed that of prior art.
Patent Claims
1. I claim a multi-purpose quad dolly hand truck transporter comprising
of First and second support frames, each of said frames including
an upwardly and lower slanted extension connecting to ground base
support. Ground base support either mesh or solid plate formation.
The bottom support base connected with the rear support member and
the base support member, and a bottom support brace connected with
the bottom support member and the base support member. The bottom
support member also being connected with one of the rear support
members also being connected with one of the bottom support members
and the base support member. A nose plate received adjacent the
bottom support member and being forwardly slanted, as retaining
means for retaining said plate adjacent the bottom support member
At least four wheels attached to said bottom side, at least two
of said wheels having axes of their rotation fixed with respect
to said base; at least one of said wheels being supported on an
axel which can swivel in a horizontal plane with respect to said
base, all of said wheels being arranged in the same plane which
coincides with the longitudinal axis of said base. Said vertical
frame comprising of at least two vertical stands inter connected
by at least one cross bar; said stands being additionally attached
to said base which imparts greater rigidity to said frame. Opposite
ground contact base structure protrudes padded support structure
with opposite side of padded structure containing a longitudinally
elongated handle. Said invention is constructed of suitable materials
of sufficient size and strength to accommodate duel cargo.
Patent Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a Continuation of Provisional Patent
Application No. 60/497,016 file date Aug. 22, 2003; Confirmation
no. 8161
FEDERALLY SPONSORED RESEARCH
[0002] Not Applicable
BACKGROUND
[0003] 1. Field of Invention
[0004] This invention relates to hand truck transporters and dollies
used for transporting doors, windows, lumber, sheetrock, panels
and similar cargo.
[0005] 2. Description of Prior Art
[0006] Warehouses, lumber yards, building and supply stores, home
decor stores have a Similar challenge of loading and transporting
cargo and materials in confined areas congested with people and
products. Safety consideration should be employed for humans as
well as cargo protection from damage during loading, unloading and
transporting cargo.
[0007] Originally these hand trucks were built for limited cargo
size and weight, as are some today. U.S. Pat. No. 1,193,729 to Stebler
(1916) discloses a complex system with many individual small mountings
and configurations. Several types of hand truck apparatuses have
been proposed over the years--for example, in U.S. Pat. No. 4,752,173
to Fleming (1988) and U.S. Pat. No. 6394,470 (2002 to Shirai and
U.S. Pat. No. 4,726,602 (1988) to Sanders.
[0008] As seen in the above patents, dollies and hand truck transporters
can be heavy, awkward, and often require a second person to assist
in loading, unloading and transporting. A desirable objective for
hand trucks and dollies is ease in stack ability, non-slip resilient
control of cargo, move forward, backward and turn with ease.
[0009] Strength and design are required to maintain balance while
manipulating a load of cargo. U.S. Pat. No. 5,120,072 to Laramie
(1992) discloses a kickstand to lock the frame and said kickstand
is used to stabilize such cargo as plasterboard, doors, panels and
the like.
[0010] The ability to push or pull the dolly forward or backward
in circumstances requiring close quarter contact and to load effortlessly
unlike the limitability as in U.S. Pat. No. 6,425,724 to Williamson
(2002) is a time-saving asset. Building sheet materials can be awkward
to load, move and unload. U.S. Pat. No. 3,841,651 (1974) discloses
a wheel mounted support platform hand truck for elongated cargo;
however, cargo could be easily damaged.
[0011] Capacity limitation reduces the effectiveness of U.S. Pat.
No. 6,250,655 to Sheeks (2001). U.S. Pat. No. 6,039,332 to Austin
discloses maneuverability but with the necessity of a motor. Hand
trucks that can be constructed of high impact metal or plastic that
requires little maintenance with a long useful life, and that can
be mass produced to be cost effective from a consumer and manufacturer's
point of view is an objective that some of the above patents lack.
Simplicity over complexity is desirable by reducing the number of
members, extensions, wheels and platforms as presented in above
patents.
[0012] In conclusion, insofar as I am aware, no hand truck or dolly
formerly developed provides such multi-purpose transportability,
duel cargo capabilities, strength, and balance as follows in summary.
SUMMARY
[0013] In accordance with the present invention--the invention,
an improved multi-purpose, moveable apparatus (henceforth quad-dolly)
designed to accept and transport longitudinal and horizontal objects
such as conference tables, plasterboard, doors, panels or the like;
having a unique additional structure cargo support plate like member
for maintaining circular buckets, tools, or other loose items in
an erect and open condition.
[0014] Said invention, a plane design composed of four points bounded
by two perpendicular radii and they are subtended. Said invention
comprising of a frame having an upper porting, a lower portion,
and a duel cargo support sheet attached to lower portion of the
frame located adjacent to the rear of nose plate (lip). Said frame
is supported by a plurality of wheels on one end for ground contact
and a handle on the opposite end for directional move ability.
[0015] Said invention is composed of structural material such as
a metal type substance or a high impact plastic substance, lightweight,
good mobility with minimal human strength needed to move said invention
loaded with cargo. Cargo stacks easily on non-slip resilient duel
cargo unit. Said invention posses both strength and balance while
manipulating cargo and is easily maneuvered through congested areas.
Said invention eliminates lifting of materials, supports loads on
swivel wheels and has a padded material rest to protect contact
of cargo with top support of said invention.
[0016] Manufacturing of said invention is cost efficient due to
the reduced number of members and extensions. There are certain
ramifications to said invention for cost-effective distribution
that are being explored.
OBJECTS AND ADVANTAGES
[0017] Accordingly, besides the objects and advantages of said
multi-purpose dolly designed to transport with ease and be multi-tasked
described in my above patent, several objects and advantages of
the present invention are:
[0018] (a) balance of cargo allows ease of movement of cargo
[0019] (b) the unobvious balance of a heavy load maneuvered with
little effort
[0020] (c) usefulness in the purpose of a dual cargo unit
[0021] (d) significant improvement in strength and capability of
unloading
[0022] (e) slight change in shape produces the unique balance effect
[0023] (f) proven commercial success in major warehouses and stores
[0024] (g) cost effective to build, transport, and markets
[0025] (h) eliminates lifting of materials
[0026] (i) supports loads on the four swivel wheels
[0027] (j) padded material rest to protect finish
[0028] (k) 360 degree swivel wheels with locking rear standard
DRAWING FIGURES
[0029] FIG. 1 is a perspective view of a portable multi-purpose
hand truck dolly exposing Lower base with nose plate for supporting
horizontal and vertical Cargo, with lower cargo plate for circular
and loose items, base-containing wheels for ground contact. Opposite
end of ground contact base is padded support top used to sustain
and brace cargo.
[0030] FIG. 2 is perspective back view of said invention with connecting
members, exposing frame and four wheels making ground contact; and
opposite ground contact is the section of said invention exposing
backside of front padded support member containing handle.
[0031] FIG. 3 is base of said invention from bottom perspective
exposing mesh plate in relation to connecting members. Extension
of cargo lip is visible with connected members.
REFERENCE NUMERALS IN DRAWINGS
[0032]
1 6 handle 8 top support 20 carriage bolts 21 lock nuts 12 frame
32 wheels 34 coaster 30 nose plate lip 36 front angle iron 14 top
cross member 22 bottom cross member 26 back pipe rail 28 back angel
iron 35 mesh bottom
Description--FIG. 1
[0033] A hand truck having a ground engaging members 32 are secured
to the frame of Said hand truck by angle arm supports 28 ground
engaging member 32 supported by member 34. Ground engaging members
32 assumes the entire weight of the loaded hand truck. Member 30
nose plate lip supports cargo, member 35 supports circular and miscellaneous
cargo. Member 12 upper frame support and member 26 lower frame support
creates the unique balance of cargo as member 30 not only supports
cargo but balances cargo as hand truck frame is forced forward to
unload. Member 14 purpose is top cross support for frame. Member
22 bottom cross member for support. Member 36 Front angle iron for
base support. Member 8 top support can be bolted or glued with soft
Material to protect sensitive cargo.
Description FIG. 2
[0034] Member 28 defines base support structure with members 32
ground engaging members connected by member 34 coasters. Member
26 lower frame support connected to member 14 top cross member by
welding or bolting. Member 14 connected to member 12 top frame support
and member 26 lower frame support. Member 8 connected to member
12 top frame. Member 6 is used to maneuver truck dolly centered
between member 12 right and left side bolted in place with members
20 and 21. Member 36 angle iron support base.
Description FIG. 3
[0035] Bottom Perspective member 28 base support, member 32 ground
engaging member. Member 35 mesh bottom for circular and miscellaneous
cargo connected to Member 30 nose plate lip. Member 30 view of lower
base lip with connected members for bearing weight of cargo. All
members can be secured by bolts or welding of materials determined
by material used to construct said hand truck.
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