close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3033411

код для вставки
May 3, 1962
A. HALLSWORTH
3,033,401
CRANES AND LIKE MECHANICAL HANDLING APPLIANCES
Filed June 15, 1960
s Sheets-Sheet 1
II
I\0Q
w!
Lwy
INVENTOR:
W M 197719265X‘;
{1114*
May 8, 1962
A. HALLSWORTH
3,033,401
CRANES AND LIKE MECHANICAL HANDLING APPLIANCES
Filed June 13, 1960
5 Sheets-Sheet 2
77———
N?
24 __
'HM
—F/ G. 2.
41
l7
I8
24
<,___
"-74
O
O
37\<>
0
0
P121111:
'9‘
A I
L’
INVENTOR:
Arno Z6! f/q Zlswori/z
May 8, 1962
A. HALLSWORTH
3,033,401
CRANES AND LIKE MECHANICAL HANDLING APPLIANCES
Filed June 15, 1960
3 Sheets-Sheet 5
/27
INVENTOR:
fir/mid f/aZ/JWarf/b
BY
_
3,033,401
United States Patent O?tice
Patented May 8, 1962
1
2
of lifting or hoisting tackle 12 provided with a lifting
3,033,401
hook 13.
CRANES AND LIKE MECHANICAL HANDLING
APPLIANCES
In this particular example shown on the drawings the
supplementary lifting appliance comprises a portable col
Arnold Hallsworth, Sunderland, England, assignor to
Steels Engineering Products Limited, Sunderland, Eng
umn-like track, guide-way or slide-way 14 releasably
articulated to the front of the super-structure 10, as in
land
Filed June 13, 1960, Ser. No. 35,603
Claims priority, application Great Britain June 11, 1959
6 Claims. (Cl. 214—672)
dicated at 15, and to the jib 11 as indicated at 16. The
arrangement is such that derricking or movement of the
jib 11, about it horizontal pivotal support, will tilt the
10 column-like track or slide-way 14 forwardly or rearwardly
This invention is for improvements in or relating to
cranes and like mechanical handling appliances.
One object of the invention is to provide means where
out of the vertical.
The means, indicated at 16 for articulating the track
or slideway 14 to the jib comprises a shaft or trunnions
by a crane can be adapted, as and when required, to serve
17 on the jib (see FIGURE 2) and jaws 18 (see FIG
the same purpose as a fork-lift or stacker-truck by which, 15 URES 2 and 3) secured to the upper end of the track-way.
The jaws are shaped so that when closed they provide a
for example, containers or palletized loads are commonly
slot which slidably embraces the trunnions 17. The jaws
lifted and moved or transferred from placeyto place.
18 are hinged together at 20 and are secured in their
According to the present invention there is provided on
closed position bya quick release pin 21 (see FIGURE 4)
or for use on a crane, a supplementary lifting appliance
or attachment comprising an upwardly extending track or 20 which, when the jaws are closed, screws into a tapped
guideway and a carriage or platform movable along said
hole 22in one jaw and projects through a registering
hole 23 in the other jaw. It will be appreciated that
when the pin 21, which has an asymmetrical handle 24, is
track or guideway and having means for connecting it to a
lifting hook or like anchorage of the crane so that said
movement of the carriage can be effected or controlled
through the lifting or hoisting means or tackle of the 25
removed and the jaws 18 are opened the upper end of the
track-way 14 can readily be detached from its suspension
crane.
point on the jib.
. In one preferred embodiment of the invention the track
or guideway is in the form of a substantially vertical mast
or column attached or adapted to be attached to the crane
so that it can be tilted to a limited extent forwardly or
backwardly from the vertical.
Preferably this tilting
movementvis effected by coupling the mast or trackway
to the jib of the crane, tilting of the mast or trackway
then being effected by derricking or slightly raising or low
ering the jib through the normal jib operating and con
trol means of the crane. This tilting of the mast or track
way enables the carriage, when in its lowermost position
(e.g. on or adjacent the ground) to be manipulated under
a load after the manner of a fork-lift or stacker-truck.
'
I
The lower securing point 15 for the track-way 14 com
prises (see FIGURES 5 and 6) a bracket 25, on the super
structure 10, having a shaft or trunnions 26, and a brack
et 27 on the lower end of the trackway 14. The bracket
27 hingedly supports, at 28, a jaw 29. The jaw 29 when
closed is adapted pivotally to embrace the trunnions or
shaft 26 on the bracket 25. The jaw 29 is secured in its
closed position by the quick release pin 30 shown in FIG
URE 6. This pin has a screw threaded part adapted to
screw into a tapped hole 31 in the bracket 27 and a plain
part adapted to pass through a hole 32 in the bracket 27
and a plain part adapted to pass through a hole 32 in the
jaw 29. The pin has an asymmetrical handle 33.
The load can then be lifted by raising the carriage through 40 Slidable up and down in or on the column or track-way
14, so as to be guided thereby, is a carriage or fork-lift
the operation of the lifting or hoisting tackle of the crane
in the normal way. Tilting of the mast or guideway can
also be utilized to manipulate or manoeuvre a load off
proper 34.
This carriage or fork-lift proper has shoes or
the like which inter?t with slide-ways in the column or
trackway 14 so as to retain in the carriage on the track
the carriage.
way and guide it in its upward and downward movement.
Conveniently the mast or trackway is secured to the
The carriage 34 has a projecting bridge piece 35 provided
crane in a readily removable manner and in such a way
with a lifting point or anchorage 36 which aligns closely
that the jib or the crane can be used to lift the mast or
underneath the lifting point on the jib 11 to which the lift
track into and lower it from its operative position.
v
ing hook 13 is attached.
One particular embodiment of the invention will now be
‘described, by way of example, with reference to the'ac— 50
For fork-liftduties the jib‘ 11 is brought to a position
comp'anying semi-diagrammatic drawings and as applied
over the carriage 34 as shown in FIGURE 1, having been
to a slewing mobile crane. In the drawings:
1
slewed to this position prior to the mounting of the sup
1 FIGURE 1 is a side elevation.
.
plementary lifting device on the crane. The lifting hook
13 is attached to the anchorage 36 on the carriage 34.
FIGURE 2 is a fragmentary front elevation of FIG
URE l but to a larger scale.
'
Tilting or rocking of the carriage 34 to manipulate'the
lower portion or tines 34a thereof under a load, or to
FIGURE 3 is a detail side elevation of the releasable
manipulate a load 01? the carriage, is effected by derrick
suspension means for attaching the upper end of the sup
ing the jib‘ 11 about its pivot on the super-structure 10 and
plementary lifting appliance to the jib of the crane.
FIGURE 4 is a detail view of a pin used in the suspen—
sion means shown in FIGURE 3,
I
FIGURE 5 is a detail side elevation of the means for
releasably securing the lower end of the supplementary
lifting ‘appliance, to the slewing super-structure of the
thereby tilting the trackway 14 forwardly or rearwardly
60 as may be appropriate.
Raising and lowering of the car
riage 34 up and down the track-way 14 is effected by tak
ing in or paying out they tackle 12 through the normal
crane hoist motion.
'
The supplementary lifting ‘device above described may
. FIGUREv 6 is a detail view of a pin used in the securing 65 be ‘readily removed from the crane by securing the forks
or tines 34a vof the carriage 34 to the ground (e.g. by
means shown in FIGURE 5 and
‘
FIGURE 7_ is a side elevation showing a dismantling . placing a load on them) and removing the pin 30 so that
the jaw 29 can open to release the shaft or trunnions 26.
device which maybe provided to facilitate dismantling of
The crane-is then backed ‘away from the carriage 34 and
vthe supplementary lifting appliance from the crane.
The crane shown‘ on the drawings ‘has a slewing super 70 the jib 11 derricked-out-t'o lower the track-way 14 to the
ground.‘ The pin 21 is then removed and the jaws 18
' structure 10 on which the jib 11 pivotally mounted for
derricking movement.‘ The jib 11 supports a normal form.
opened to disconnect the upper part of the track~way 14
crane.
.
'
3,033,401
from the jib after which the hook 13 is disconnected from
the anchorage 36 on the carriage. Thus, the supplemen
tary lifting device is completely detached from the crane
and the latter can be used for its normal duties. A similar
procedure but in the reverse way may be adopted for
mounting the supplementary lifting device on the crane
Existing mobile cranes may readily be converted so that
a supplementary lifting device as above described can be
attached to them to enable them to do occasional fork
lift duties.
Safety and load indication devices normally provided
on mobile cranes may be used with the supplementary
lifting device or attachment according to the present
i.e. the jib 11 is dcrricked out so that it can be connected
invention.
to the upper part of the track-Way 14 by the suspension
The invention is particularly, although not exclusively,
means shown in FIGURES 3 and 4. The jib is then
applicable
to mobile cranes.
10
derricked-in so as to lift the track-way 14 and enable its
Preferably the supplementary lifting device is readily
lower end to be attached to the super-structure 10 by
means of the securing arrangement shown in FIGURES
detachable from the crane but it could constitute a perma
5 and 6.
nent part of a crane.
Finally the hook 13 is attached to the anchor
age 36.
A ladder 37 may be provided to afford ready access to
I claim:
1. The combination with a jib crane having a slewing
superstructure on which the jib is pivotally mounted for
derricking movement about a horizontal axis and hoist
ing tackle carried by said jib, of a lift attachment com
the upper part of the track-Way 14 and particularly to
the suspension means 16.
A somewhat modi?ed procedure for mounting the sup
prising an upwardly extending column-like trackway,
plementary lifting appliance on the crane and dismantling
it therefrom is shown in FIGURE 7. This procedure 20 means pivotally and detachably connecting the lower end
of said column-like trackway to said crane super-struc
makes use of an additional appliance which may be pro
ture for hinging movement about a horizontal axis, means
vided by the present invention.
including a pin and inclined slot arrangement detachably
This additional appliance comprises a trestle 38, which
articulating the upper end of said track to the jib of the
may be mounted on wheels, provided at its upper part
with two sockets (e.g. two pairs of spaced apart, back to 25 crane whereby derricking movement of the jib tilts said
column-like trackway into and out of the vertical, a
back channels) 39 and 40 adapted to receivethe tines or
carriage supported in said trackway for movement there
prongs 34a of the carriage 34. Also mounted on the
along and so as to be tilted rearwardly by said movement
trestle is an adjustable stop or rest 41 for the lower end
of the trackway out of the vertical and means connecting
of the guideway 14. Adjustment of the stop or rest about
said carriage to the hoisting tackle of the crane whereby
its pivot 41a is effected by a screw mechanism 42 pro
said tackle is operative to effect such movement of the car
vided with a hand-wheel 43. Manipulation of the stop or
riage.
rest by its hand-wheel 43 greatly facilitates adjustment of
2. The combination with a jib crane having a slewing
the track-way 14 to align or correctly position the parts
super-structure on which the jib is pivotally mounted for
of the securing devices 15 and 16.
Using the appliance just described with reference to 35 derricking movement about a horizontal axis and hoisting
tackle carried by said jib, of a lift attachment compris
FIGURE 7 the following procedure is adopted for dis
ing an upwardly extending column-like trackway, means
mantling the supplementary lifting device of the crane.
Firstly the crane is backed so that the tines or prongs
44a enter the sockets 39 and 46 of the dismantling device
as shown in the drawing.
The handle 43 is then adjusted so that the weight of the
supplementary lifting attachment is taken by the stop or
rest 41.
The operator then mounts the ladder and re
leases the top of the guide-way 14 from the jib and dis
connects the hook 13. The lower end of the guide-way
14 is then detached from the crane super-structure by
releasing the attaching device 15 after which the crane is
driven away so as to leave the supplementary lifting at
tachment in the dismantling device ready to be mounted
on the crane again as and when required.
If desired the tines or prongs 3411 may be made tele
scopic so that they can be extended in length if desired.
It will be appreciated that the bracket 27 may be on the
crane super-structure 10 and a shaft or trunnions, equiva
lent to the trunnions 26, mounted on the guide-way 14.
Similarly the jaws 18 may be on the jib and the trunnions
17 on the upper part of the guide-way 14.
A rubber bumper may be provided, in the vicinity of
the lower attachment point 15, for the lower end of the
guide-way or column 14.
The invention has a wide ?eld of application to cranes
of different types but is of particular advantage in conjunc
comprising a shaft on the crane super-structure and a
hinged releasable jaw device on the trackway operative to
embrace said shaft thereby pivotally and detachably to
connect the lower end of said column-like trackway to
said crane super-structure for hinging movement about
a horizontal axis, means including a pin and inclined slot
arrangement detachably articulating the upper end of said
track to the jib of the crane whereby dern'cking move
ment of the jib tilts said column-like trackway into and
out of the vertical, a carriage supported in said trackway
for movement therealong and so as to be tilted rear
wardly by said movement of the trackway out of the
vertical and means connecting said carriage to the hoist
50 ing tackle of the crane whereby said tackle is operative to
effect such movement of the carriage.
3. The combination with a jib crane having a slewing
super-structure on which the jib is pivotally mounted
for derricking movement about a horizontal axis and
hoisting tackle carried by said jib, of a lift attachment
comprisingan upwardly extending column-like trackway,
means pivotally and detachably connecting the lower end
of said column-like trackway to said crane super-structure
for hinging movement about a horizontal axis, means
comprising a shaft on the jib and a hinged releasable jaw
device on the trackway operative when closed to form an
inclined slot which embraces said shaft thereby detach
tion with a slewing crane. For instance, when attached
ably to articulate the upper end of said track to the jib of
to a slewing crane the load on the carriage 19 may be
lifted and then, by slewing the crane, caused to clear an 65 the crane whereby derricking movement of the jib tilts
said column-like trackway into and out of the vertical,
obstruction. Thus, the arrangement has the advantage
over a normal fork-lift truck in that, as distinct from such
a truck, it provides the advantage of a crane slewing
motion.
a carriage supported in said trackway for movement
therealong and so as to be tilted rearwardly by said move
ment of the trackway out of the vertical and means con
For faster and/ or safer travel with a load on the forked 70 necting said carriage to the hoisting tackle of the crane
whereby said tackle is operative to effect such movement
carriage 34, 34a the crane jib may be slowed through 180°
from the position shown in the drawings and derricked so
that the load is located over one axle.
With a normal
‘fork-lift truck, the truck has tocarry its load on a carriage
> extending in front of it.
of the carriage.
4. The combination with a jib crane having a slewing
super-structure on which the jib is pivotally mounted for
derricking
movement about a horizontal axis and hoist
75
3,033,110 1
5
6
ing tackle carried by said jib, of a lift attachment com
tilted rearwardly by said movement of the trackway out
of the vertical and means connecting said carriage to the
hoisting tackle of the crane whereby said tackle is oper
prising an upwardly extending column-like trackway,
means pivotally and detachably connecting the lower
end of said column-like trackway to said crane super
structure for hinging movement about a horizontal axis,
means including a pin and inclined slot arrangement de
tachably articulating the upper end of said track to the
ative to effect such movement of the carriage.
6. The combination of a jib crane having a slewing
super-structure on which the jib- is pivotally mounted for ‘
derricking movement about a horizontal axis and hoist
ing tackle carried by said jib, a lift attachment com
jib of the crane whereby derricking movement of the jib
prising an upwardly extending column-like trackway,
tilts said column-like trackway into and out of the vertical,
a fork-lift carriage having telescopic prongs supported in 10 means pivotally and detachably connecting the lower end
said trackway for movement therealong and so as to be
of said column-like trackway to said crane super-struc
tilted rearwardly by said movement of the trackway out
of the vertical and means connecting said carriage to the
hoisting tackle of the crane whereby said tackle is oper
ative to e?ect such movement of the carriage.
15
ture for liinging movement about a horizontal axis, means
5. The combination with a jib‘ crane having a slewing
super-structure on which the jib is pivotally mounted for
derricking movement about a horizontal axis and hoist
ing tackle carried by said jib, of a lift attachment com
including a pin and inclined slot arrangement detachably
articulating the upper end of said track to the jib of the
crane whereby dern'cking movement of the jib tilts said
column-like trackway into and out of the vertical, a car
riage having horizontal prongs and supported in said
trackway for movement therealong and so that said
prongs are tilted rearwardly by said movement of the
prising an upwardly extending column-like trackway, 20 trackway out of the vertical and means connecting said
means comprising a shaft on the crane super-structure and
a hinged releasable jaw device on the trackway operative
to embrace said shaft thereby pivotally and detachably
connecting the lower end of said column-like trackway
carriage to the hoisting tackle of the crane whereby said
tackle is operative to e?ect such movement of the car
riage, and a dismantling appliance for the lift attach
ment, said appliance comprising a trestle having socket
to said crane super-structure for hinging movement about 25 means for the prongs of the carriage, a rest for the track
way and means for raising and lowering said rest.
a horizontal axis, means comprising a shaft on the jib
and hinged releasable jaw device on the trackway oper
ative when closed to form an inclined slot which em
braces said shaft thereby detachably to articulate the up
per end of said track to the jib of the crane whereby der 30
ricking movement of the jib tilts said column-like track
way into and out of the vertical, a carriage supported in
said trackway for movement therealong and so as to be
References Cited in the ?le of this patent
UNITED STATES PATENTS
2,941,685
McCune _____________ __ June 21, 1960
614,445
Great Britain _________ __ Dec. 15, 1948
FOREIGN PATENTS
Документ
Категория
Без категории
Просмотров
2
Размер файла
537 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа