Note: Descriptions are shown in the official language in which they were submitted.
1268839 il- 2
TITLE OF THE INVENT:[ON
RADIO CONTROL AERIAL AUTOMATIC CARRYING SYSTEM
FIELD OF T~IE INVENTION
-
The presen-t invention relates to a radio control
aerial automa-tic carrying system and, more particularly,
to a radio control aerial automatic carrying system
which is used to convey the cut woods in -the felling
forest and which can be safely certainly moved even
in the steep slanting ground and also can be easily
handled.
DESCRIPTION OF THE RELATED BACKGROUND ART
The aerial cableway is used as the carrying
means for carrying the cut woods from the fores-t. The
cut woods can be easily conveyed by the aerial cableway
in the steep slanting region such as region between
the mountains, region between the valleys, or the like.
The aerial cableway is constituted by suspending
the steel cables between the summit of the mounting
having the steep slanting surface and the foot of the
mountain or in the valley between -the mountains. The
carrying apparatus which is operated by the radio wave
is suspended to -the steel cables, -thereby suspending
and transporting objects to be conveyed. The carrying
~Z6883~3
apparatus has a power uni-t consisting of a power
source and the like. Namely, the power source consist:ing
of -the internal combustion engine is a-ttached -to the
outer casing of the carrying appara-tus. The power source
is coupled to the hois-ting means such as hoisting drums
or -the like through the clutch and speed change apparatus
such as an automatic speed change gear or the like.
The hoisting means are respectively individually driven.
The clutch and the speed change apparatus and the like
are connected to a hydraulic apparatus consisting of
a hydraulic motor or the like to make them operative.
Most of the conventional carrying apparatuses
are of the type of what is called one-shaft and one-body
such that one drive wheel to move the carrying apparatus
while manually operating the sub cableway is attached
to one rotary shaft. However, when the carrying apparatus
is obliquely upwardly moved in the steep slanting district,
there is such a problem that the drive wheel slips and
the carrying apparatus is not smoothly moved because
the friction which is caused between the drive wheel
and the sub cableway is small and the like. On the
other hand, when the carrying apparatus is moved downwardly,
there is a fear of runaway of -the carrying apparatus
since the braking performance is bad, so that it is
dangerous. Further, a large total weight of -the carrying
~68~339
appara-tus and objects to be conveyed ac-ts on one sub
cableway, so that there is such a risk that the sub
cableway is likely to be cut away. Therefore, there is
such a serious problem that the carrying apparatus
recklessly runs if the sub cableway is cu-t away while
the carrying apparatus is moving in the steep slantlng
region. Thus, the improvement of the conven-tional carrying
apparatus is demanded.
On the other hand, -the opera-ting oil serving
as the liquid for making the hydraulic apparatus operative
is stored in the operating oil tank. The fuel oil serving
as the liquid to make -the power source operative is
stored in -the fuel oil tank. These tanks are separately
disposed. Therefore, there are the following drawbacks.
Namely, the n~mber of parts increases. It is troublesome
to attach those tanks. The whole structure of -the
carrying apparatus is complica-ted. The weight and
size of carrying apparatus also increase. This makes
it difficult to handle the carrying apparatus.
SUMMARY OF THE INVENTION
The present invention, therefore, is made
to eliminate the foregoing drawbacks. I-t is an objec-t
of the invention to provide a compact radio con-trol aerial
automatic carrying system in which at least two rotary
12~88~9
shaf-tsare provided for the carrylng apparatus, a drive
wheel is attached to each rotary shaft, and a sub cableway
is wound around the drive wheel so as to be manually
operated, thereby enabling the carrying apparatus -to
be safely certainly moved even in the steep slanting
region, and the liquid which is used for a power uni-t
is stored in the hollow portion of the ou-ter casing,
and the outer casing is used as the liquid tank, so
that the number of parts can be reduced, the cons-titu-tion
is simple, and the carrying apparatus can be easily
handled.
According -to the presen-t invention, this object
is accomplished by a radio con-trol aerial automatic
carrying system for carrying an objec-t by a carrying
apparatus suspended to a cableway, and this carrying
system comprises: an aerial main cableway for suspending
the carrying apparatus; running wheels suspended to
the aerial main cableway; an outer casing which is
coupled with the running wheels and formed by a hollow
body; a power source a-ttached to the outer casing;
hoisting means which are wound and driven by the power
source; a receiver, attached to the outer casing, for
receiving radio waves which are transmitted from a
transmitter and for generating control commands to drive the
power source and the hoisting means in response to the
~2~ 339
radio waves received; at least two rotary shaEts whlch
are attached to the outer casing and rotated by the
power source; a plurality oE sub cableways, suspended
in parallel with the aerial main cableway, for suppor-ting
the carrying apparatus; and a plurality of drive wheels,
attached to the rotary shafts, for moving the carrying
apparatus by opera-ting the sub cableways.
According to the inventlon, at least two rotary
shafts are provided, the drive wheel is attached to
each ro-tary shaft, and the sub cableway is wound around
each drive wheel. Therefore, the frictions which are
caused between the drive wheels and the sub cableways
can be increased. When the carrying appara-tus is
obliquely upwardly moved, the slip of carrying apparatus
and the like are prevented. When the carrying apparatus
is downwardly moved, the carrying apparatus is effec-tively
braked. The operating performance can be improved.
In addition, the total weight of the carrying apparatus
and object which acts on each sub cableway can be reduced,
so that the cut-away of the sub cableways can be avoided.
Even if one of the sub cableways is cut away, the carrying
apparatus can be held at the fixed position by the
remaining sub cableways and the main cableway and i-t
is safe. Moreover, -the sub cableways can be selectively
wound around a desired drive wheel. The use efficiency
1~6~383
is improved.
The liquids which are used by the power unit
are stored in -the hollow portions of the outer casings
formed by the hollow bodies and the outer casings are
used as the liquid tanks. Thus, -the operating oil -tank
of the hydraulic apparatus,the fuel oil tank, and the like
do not need to be separately provided. The number oE
parts can be reduced. The constitution of the carrying
apparatus can be simplifi.ed and reduced in size and
weight. The carrying apparatus can be easily handled.
The above and o-ther objects and features of
the present invention will become apparent from -the
following detailed description and the appended claims
with reference to the accompanying drawings.
8~33~3
BRIEF DESCRIPTION OF T~IE DRAWINGS
Fig. 1 is a front view of a carrying apparatus
of the first embodiment of the invention;
Fig. 2 is a perspective view illus-trating
the suspending state of the carrying apparatus of Fig. 1;
Fig. 3 is a perspective view illustrating
the suspending state of the carrying apparatus according
to the second embodiment of -the invention;
Figs. 4 to 14 show modified forms of the firs-t
and second embodiments of the invention, in which
Fi~s. 4 to 6 are perspective views showing
the suspending s-tates of the carrying apparatuses, and
Figs. 7 to 14 are schematic plan views of
the carrying apparatuses; and
Figs. 15 to 18 show the third embodiment of
the invention, in which
Fig. 15 is a front view of a carrying
apparatus,
Fig. 16 is a perspective view of an outer
casing,
Fig. 17 is a cross sectional view taken along
the line XVII-XVII in Fig. 16, and
Fig. 18 is a perspective view showing -the
state in which the carrying apparatus is suspended -to
a main cableway.
1~68839
DESCRIPTION ~F T~IE PREFERRED EMBODIMENTS
An embodimen-t of -the presen-t invention will
now be described in detail hereinbelow with reference
to the drawin~s.
Figs. 1 and 2 show -the firs-t embodiment oE
the invention. In the diagram, reference numeral 2
denotes a radio control aerial au-tomatic carrying
apparatus (hereinafter, simply referred to as a "carrying
apparatus") and 4 deno-tes an outer casing of the carrying
apparatus 2. The outer casing 4 consists of two ou-ter
c.asings 4-1 and 4-2 arranged in parallel. The ou-ter casings
4-l and 4-2 are generally referred -to as the outer casing
4 hereinafter. The outer casings 4-1 and 4~2 are
formed by the hollow bodies and also serve as the tank
of the operating oil of a hydraulic apparatus 16 and
the tank of the fuel oil of a power source 10, which
will be explained hereinafter. For this purpose, coupling
portions 6-1 and 6-2 are attached to the upper portions
on the front and rear end portions of the outer casings
4-1 and 4-2, thereby allowing the operating oil and
fuel oil to flow therethrough. In this case, the upper
surfaces of the coupling portions 6-1 and 6-2 are slightly
lower than the upper surface of the outer casing 4,
thereby allowing a sub cableway 48-3, which will be
explained hereinafter, to pass. In addi-tion, other
~ ~8~33~
coupling portions (not shown)are connected to the central
lower portions of the outer casings 4-1 and 4-2, thereby
allowing the operating oil and Euel oil to flow. A
space portion 8 adapted to a-ttach the apparatuses such
as power source and the like is formed in the outer
casing 4. Namely, the power source 10, a clu-tch 12,
a speed change apparatus 14 such as an automatic speed
change gear, and the hydraulic apparatus 16 consis-ting
of the llydraulic motor and the like are installed in
the space portion 8. The power source 10, clutch 12,
and speed change apparatus 14 are driven by tlle hydraulic
apparatus 16. The power source 10 is connected to
first hoisting means 18 and second hoisting means 20
through the clutch 12, speed change apparatus 14, and
transmitting means (not shown). The first and second
hoisting means 18 and 20 are respectively individually
opera-ted by the power source 10. The first hoisting
means 18 is fixed to the central bottom portion between
the outer casings 4-1 and 4-2 by a first fixing device
22. The second hoisting means 20 is fixed to the central
bottom portion between those outer casings by a second
fixing device 24.
~ first cable 28 is wound around the first
hoisting means 18 and a first hook 26 is attached -to
the free end of the first cable 28 as shown in ~ig. 2.
g _
~26~3839
The Eirst cable 28 is vertically put down -through the
portion between the outer casings 4-1 and 4-2 and -through
a first guide pulley 30. The pulley 30 is supported by a first
pulley supporting bracket 32 connected -to the lower portion of
the coupling portion 6-1. Similarly, a second cable
36 is also wound around the second hoisting means 20.
A second hook 34 is at-tached to the free end of the
second cable 36. The second cable 36 is vertical:Ly
put down through -the portion between the outer casings
4-1 and 4-2 and through a second guide pulley 38. The
pulley 38 is supported by a second pulley supporting
bracket 40 connected to the lower portion of the coupling
portion 6-2. Therefore, by driving the firs-t and second
hoisting means 18 and 20, the first and second cables
28 and 36 are pulled in and out, thereby allowing an
object to be hung up and down or laterally h~ng.
First and second rotary shafts 42 and 44 are
disposed by attaching means (not shown) in the wid-th
direction perpendicular to the longitudinal direction
of the outer casing 4. Both end portions of the firs-t
rotary shaft 42 are projected from the outside surfaces
of the outer casings 4-1 and 4-2. A drive wheel
46-1 is attached to the outside of the outer casing
4-1. A drive wheel 46-2 is attached to the outside
of the outer casing 4-2, namely, on the side opposite
- 10 -
883~
-to the ou-ter casing 4-1. A drive wheel 46-3 is
at-tached -to the first rotary shaft 42 so as to be
sandwiched by the ou-ter casings 4-1 and 4-2. Similarly,
both end portions of the second rotary shaft 44 are
projected from the outside surfaces of the outer casings
4-1 and 4-2. Ano-ther drive wheel 46-1 is attached to
the outside of the outer casing 4-1. Another drive
wheel 46-2 is attached to the outside of the outer casing
4-2, namely, on the side opposi-te to the outer casing
4-1. Further, another drive wheel 46-3 is attached
to the second rotary shaf-t 44 so as to be sandwiched
by -the outer casings 4-l and 4-2. Namely, -the driving
appara-tus of the carrying apparatus 2 is cons-ti-tuted
as the two-shafts and six bodies. The drive wheels
46-1 to 46-3 are generally referred to as the drive
wheel 46 hereinafter. Each drive wheel 46 is coupled
to the speed change apparatus 14 through the transmi-tting
means tnot shown). A sub cableway 48-1 is suspended
along the outside surface of the outer casing 4-1 in
the longitudinal direction thereof. The sub cableway
48-1 is operated by the drive wheels 46-1
attached to the first and second rotary shafts 42 and
44. In addition, a sub cableway 48-2 is similarly
suspended along the outside surface of the outer casing-
4-2 in the longitudinal direction thereof. The sub
cableway 48-2 is operated by the drive wheels 46-2
-- 11 --
~'~68~ '3
attached to the first and second ro-tary shafts 42 and
44. Further, the sub cableway 48~3 is suspended along
the gap between the outer casings 4-1 and 4-2 in the
longitudinal direction thereof. The sub cableway 48-3
is operated by the drive wheels 46-3 o the irst and
second ro-tary shaf-ts 42 and 44. The sub cableways 48-:L
to 48-3 are disposed in parallel with a main cableway 62,
which will be explained hereinafter. The end portions oE
these sub cableways are fixed ~to fixing means such as
standing trees, poles, and the like.
The sub cableways 48-1 and 48-2 wound around
the drive wheels 46-1 and 46-2 are supported by a
supporting mechanism 50 having first and second supporting
rollers 52 and 54. The irst supporting roller 52 is
attached to one end of a swing arm 56. The o-ther end
of the swing arm 56 is axially supported. Thus, -the
roller 52 can ro-tate around the other end of the swing
arm 56 as a rotational center. One end of the swing
arm 56 is pressed by a spring 58. The second supporting
roller 54 is disposed on the side o the drive wheel ~6
rather than the first supporting roller 52 and fixed
to the outside portion of the ou-ter casing 4. The
sub cableways 48-1 to 48-3 are generally referred to
as the sub cableway 48 hereinafter. When the sub cableway
48 is supported, the upper side -thereof is come into
- 12 -
68~339
contac-t wi-th the lower side of -the second supporting
roller 54, and the lower side of the sub cableway ~8
is come into contact with the upper side of the first
supporting roller 52. Thus, the roller 54 is slightly
moved by the pressing force of the sub cableway ~8 against
the pressing force of the spring 58, -thereby supporting
the sub cableway 48. The supporting mechanism 50 is
constituted in -this manner and attached -to both side
portions of the outer casing 4, namely, a-t Eour positions
I0 on the front and rear end portions oE the outer casing
4.
Running wheel supporting brackets 60 are
vertically upwardly attached above the coupling portions
6-1 and 6-2 which couple -the ou-ter casings 4-1 and 4-2.
Running wheels 64 are attached to the brackets 60.
The wheels 64 are guided by the main cableway 62 and
run. The main cableway 62 is suspended in parallel
with the sub cableway 48. The brackets 60 are coupled
by a reinforcing material 66 which is disposed above
the outer casing 4 in parallel therewith. Further,
cableway slip-out preventing metal fittings 68 are
attached to the upper end portions of the brackets 60.
On the other hand, cambers 70 for running
are attached to the bottom portions of the ou-ter casings
4-1 and 4-2, thereby enabling the carrying apparatus
- 13 -
-
1~8839
2 to be easily drawn and transported on the ground.
A receiver 72 -to receive the radio waves is
a-ttached to the outer casing 4. The control commands
received by the receiver 72 are sent to the hydraulic
apparatus 16. In response to the control commands
received, the hydraulic apparatus 16 performs the start,
acceleration, and stop of the power source 10, the
connection and disconnection oE the clutch 12, and the
switching operation of the speed change apparatus 14.
The worker who works at the safe unobstructed loca-tion
on the ground operates a transmi-t-ter (not shown) -to
transmit desired control commands to -the receiver 72
by way of the radio waves.
The operation of the first embodiment will
now be described. When the operator desires to operate
the carrying appara-tus 2, the operator firs-t operates
the transmitter so as to transmit the radio waves
indicative of the control commands. The radio waves
are received by the receiver 72. On the basis of the
radio waves received, the receiver 72 sends the control
commands to the hydraulic appara-tus 16. In response
to the control commands, the hydraulic apparatus 16
IS made operative and drives the power source 10, clu-tch
12, and speed change apparatus 14. Thus, the first
and second rotary shafts 42 and 44 are rotated, thereby
!
1~6~83g
drlving the drive wheels 46. The sub cableways 48 are
opera-ted by the drive wheels 46, thereby moving the
carrying apparatus 2. In this case, the running wheels
64 are guided by the main cableway 62 and run. After
the carrying apparatus 2 was s-topped at a desired
position, the first and second hoisting means 18 and
20 are driven to han~ up an object. The drive wheels
46 are again driven through the first and second rotary
shafts 42 and 44 and the sub cableways 48 are operated,
thereby moving -the carrying apparatus 2 to a desired
position. In this manner, the objec-t is carried.
When the objec-t is hung up, as shown in ~ig.
2, both end portions of the object can be supported
by the first and second cables 28 and 36. ThereEore,
the object can be stably hung up and the swing of the
carrying apparatus 2 is preven-ted. The running
performance is improved.
According to the first embodiment, since -the
carrying apparatus is constituted as the two-shafts
and six-bodies, the frictions which are
caused by the drive wheels 46 and sub cableways 48 can
be enlarged. Thus, such inconveniences that the drive
wheels 46 slip and the like when the carrying apparatus
2 is obliquely upwardly moved are avoided. On the
contrary, when the carrying apparatus 2 is downwardly
~;~6~3~39
moved, -the carrying apparatus can be eEfectively braked
and the operating performance is improved. On the o-ther
hand, since three sub cableways 48 are arranged, the
total weight of the carrying apparatus 2 and objec-t
to be conveyed which act on each sub cableway 48 can
be reduced. Therefore, the cu-t-away of the sub cableways
48 can be avoided. Even lf one or two sub cableways
48 are cu-t away, the carrying appara-tus 2 can be held
at a fi~ed position by the remaining sub cableway 48
and by the main cableway 62. The runaway of the carrying
apparatus 2 can be prevented. The safety is improved.
Fig. 3 shows the second embodiment of the
invention. In the second and subsequent embodiments
and in the modified forms -thereof, the parts and
components having the same Eunctions as those shown
in the foregoing first embodiment are designated by
the same reference numerals and described. It is a
feature of the second embodiment that two drive wheels
46-1 and two drive wheels 46-2 are attached to only
both outside portions of the outer casing 4 of the
carrying apparatus 2 having the outer casing 4 of a
single body. Reference numeral 74 denotes a hole for
the cables to hang up and down an object.
With the second embodimen-t having such a
constitu-tion, the effects similar to those itl the first
- 16 -
embodimen-t can be derived. The constitu-tion is si.mplified.
This embodimen-t can be also easily applied to the existing
carrying apparatus.
The present invention is not limited to the
foregoing first and second embodiments but many variations
and modifications are obviously possible.
For example, the first embodiment has been
constituted as the two-shafts and six-bodies. However,
as shown in Fig. 4, it is also possible to constitu-te
in such a manner that as shown in Fig. 4, the drive
wheels 46-1 to 46-3 are at-tached -to the first ro-tary
shaft 42 and the drive wheels 46-1 and 46-2 are attached
to the second rotary shaft 44, thereby constructing
the two-shafts and five-bodies. On the other hand,
as shown in Fig. 5, it is also possible to consti-tute
in such a manner that the drive wheels 46-2 and 46-3
are attached to the firs-t rotary shaft 42 and the drive
wheels 46-1 and 46-3 are attached to the second rotary
shaft 44, thereby constructing the two-shafts and
four-bodies. In the first embodiment, on the other
hand, for example, as shown in Figs. 7 to 10, the
attaching positions and -the number of drive wheels and
the number of sub cableways may be also changed in
accordance with the use situa-tion such as steep slanting
ground, flat ground, or the like. The sub cableways may
- 17 -
~26~383~3
be also selectively used.
On the other hand, although the second
embodiment has been constituted as the -two-shaf-ts and
four-bodies, it is also possible to simply consti-tu-te
in such a manner tha-t the drive wheel 46-2 is attached
to the first rotary shaf-t 42 and the drive wheel 46-1
is attached to the second ro-tary shaft 4~ as shown in
Fig. 6. In the second embodiment as well, for e~ample,
as shown in Figs. 11 and 12, the attaching positions
and the number of drive wheels, and the number of sub
cableways can be changed in accordance with the use s:ituation
such as slanting ground, flat ground, or the like.
The sub cableways may be also selectively used.
Further, for example, the two-shafts and
eight-bodies can be constituted as shown in Fig. 13.
The two-shafts and six-bodies can be also cons-ti-tuted
as shown in Fig. 14.
Moreover, although two rotary shafts have
been attached in the firs-t and second embodiments, it
is also possible to constitute in such a manner -that
two or more rotary shafts are attached and the drive
wheel is attached to each rotary shaft, thereby
constructing the multi-shafts and a plurali-ty of bodies.
Figs. 15 to 18 show the third embodiment of
the invention. Reference numeral 102 denotes a carrying
-- 1~ --
i883~
appara-tus and 104 denotes an outer casing made by a
hollow body. The carrying appara-tus 102 has two outer
casings 104-1 and 104-2 which are arranged in parallel.
The outer casings 104-l and lQ4-2 are generally referred
to as the outer casing 104 hereinafter.
The outer casing 104-1 consists of a rectilinear first
member 106-1 and a U-shaped second member 108-1 which
is connected with the first member
106-1. The first member 106-1 is formed by a hollow
body and has a first hollow portion 110-1. The second
member 108-1 is also similarly formed by a hollow body
and has a second hollow portion 112-1. The first and
second hollow portions 110-1 and 112-1 are communica-ted.
The outer casing 104-2 is constituted in the same manner
as the ou-ter casing 104-1; therefore, i-ts description
is omitted here.
On the other hand, the first and second hollow
portions 110-1 and 112-1 can be also coupled without
being communicated with each other. In this case, -the
first and second hollow portions 110-1 and 112-1 can
individually store different kinds of liquids for use
in a power unit 116, which will be explained hereinafter.
The outer casings 104-1 and 104-2 are disposed
in parallel. A gap is formed between the first members
106-1 and 106-2. In order to communicate the firs-t
hollow portions 110-1 and 110-2, coupling portions 114-1
and 114-2 are connected to the front and rear end
-- 19 --
;8~39
portions of -the first members 106-1 and 106-2. In this
case, the upper surfaces of -the coupling portions 114-1
and 114-2 are lower than the upper surfaces of the Eirst
members 106-1 and 106-2 by a predetermined distance,
thereby allowing a third sub cableway 142, which will be
explained hereinafter, to pass. On the o-ther hand,
in order to communicate -the second hollow portions 112-1
and 112-2, a coupling portion 114-3 is connec-ted -to the
central portions of the second members 108-1 and 108-2.
A space por-tion 118 is formed in the region which is
defined by the Eirst members 106-1 and 106-2 and second
members 108-1 and 108-2 of the outer casings 104-1 and
104-2. The power unit 116 and hois-ting means, which
will be explained hereinafter, are set to the space
portion 118. When the first and second hollow portions
110 and 112 are coupled without being communicated with
each other,-the fuel oil as the liquid -to make a power source
122 of the power unit 116 operative is stored into the
first hollow portion 110. The operating oil as -the
liquid to make the hydraulic apparatus 120 of the power
unit 116 operative is stored into the second hollow
portion 112. The first hollow portions 110-1 and 110-2
and -the second hollow portions 112-1 and 112-2 are
generally referred to as the first ho:llow portion 110
and the second hollow portion 112.
- 20 -
883~
As shown in Fig. 15, the power unit 116
comprises: the power source 122 consisting of an internal
combustion engine; a clutch 124; a speed change appara-tus
126 such as an automatic speed change gear; and ~he
hydraulic apparatus 120 consisting of a hydraulic motor
and the like. Namely, these appara-tuses are driven
by the hydraulic apparatus 120. The power source 122
is connected to first and second hoisting means 128
and 130 through the clu-tch 124, speed change apparatus
126, and transmi-tting means (not shown). These hoisting
means are respectively individually operated and attached
onto the central portions of the second members 108.
On the otller hand, first drive wheels 132 are
coaxially attached to both side portions on the front
sides of the outer casings 104-1 and 104-2 and projected
therefrom. Second drive wheels 134 are similarly
coaxially attached to both side portions on the rear
sides of the outer casings 104-1 and 104-2 and projected
therefrom. Third drive wheels 136 are attached between
the outer casings 104-1 and 104-2 coaxially with each
of the first and second drive wheels 132 and 134,
respectively. Namely, the carrying apparatus 102 is
constituted as the two-shafts and six-bodies. The ~irst
to third drive wheelsl32, 134, and 136 are coupled wi-th
the speed change apparatus 126 through transmitting
lX6~ 9
means (not shown), respec-tively. A first sub cableway
138 is wound around -the firs-t and second drive wheels
132 and 134 on one side of the outer casing 104.The first
sub cableway 138 is operated by the first and second
drive wheels 132 and 134, thereby moving the carrying
apparatus 102. A second sub cableway 140 is wound around
the first and second drive wheels 132 and 134 on the
other side of the outer casing 104,namely, on the side
opposite to the first sub cableway 138. Further, the
third sub cableway 142 is wound around the central third
drive wheels 136 sandwiched by -the first and second
drive wheels 132 and 134. Both ends of the firs-t to
third sub cableways 138, 140, and 142 are fixed to fixing
means (not shown) such as standing trees, poles, and
the like. Further, guide roller portions 144 are attached
to both side portions on the front and rear end por-tions
of the first members 106. The guide roller portions
144 guide and support the first and second sub cableways
138 and 140 wound around the first and second drive
wheels 132 and 134. The first members 106-1 and 106-2 are
generally referred to as the first member 106. The
second members 108-1 and 108-2 are generally referred
to as the second member 108. The guide roller portions 144
are constituted by: two vertical guide rollers for
supporting the first and second sub cableways 138 and
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~Z688~g
140 in -the horizontal direc-tion; and two la-teral guide
rollers for supporting these sub cableways in the vertical
direction. Thus, even if the first and second sub
cableways 138 and 140 are directed in any direction,
the guide roller portions 144 protec-t -the sub cableways
so as not to be cut away or damaged by the Eriction.
A first cable 148 is wound around the irst
hoisting means 128. A first hook 146 is attached to
the free end of the firs-t cable 148. The first cable
148 is vertically put down through -the gap be-tween -the
outer casings 104-1 and 104-2 and through a first guide
pulley 150. The pulley 150 is supported by a firs-t
pulley supporting bracket 152 fixed to the lower portion
of the coupling portion 114-1. Similarly, a second
cable 156 is wound around the second hoisting means
130. A second hook 154 is attached to the free end
of the second cable 156. The second cable 156 is
vertically put down through the gap be-tween the ou-ter
casings 104-1 and 104-2 and through a second guide pulley
158. The second guide pulley 158 is supported by a
second pulley supporting bracket 160 fixed to the lower
portion of the coupling portion 114-2. Therefore, by
driving the first and second hois-ting means 128 and
130, the first and second cables 148 and 156 are pulled
in and out, thereby allowing -the object to be hung up
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~2~38~91
and down or laterally hung.
Running wheel suppo.rting braclcets 162 are
vertically attached above the coupling portions 114-1
and 114-2 which couple the ou-ter casings 104-1 and 104-2.
Running wheels 166 are attached to the brackets 162.
The wheels 166 are guided by a main cableway 164 and
run. The main cableway 164 is suspended along the f:irst
to third sub cableways 138, 140, and 142. The brackets
162 are coupled by a reinforcing material 168 which
is arranged in parallel with and above the first members
106. Further, cableway slip-out preventing me-tal
fittings 170 are a-ttached to the end portions of -the
brackets 162.
In addition, cambers 172 for running are
attached to the bot-tom portions of the cen-tral por-tions
of the second members 108 consti-tuting the outer casings
104, thereby enabling the carrying apparatus 102 to
be easily drawn and transported on the ground.
A receiver 174 to receive -the radio waves
is attached to the outer casing 104. On the basis of
the control commands received by -the receiver 174, the
power source 122 is made operative and the hydraulic
apparatus 120 performs the start, acceleration, and
stop of the power source 122, the connection and
disconnection of the clutch 124, and the switching
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1~8~33~
operation of the speed change apparatus 126 in -the same
manner as men-tioned above. The worker who works at the safe
unobstructed location on the ground operates a transmitter
(not shown) to transmit the control commands to -the
receiver 174 by way of the radio waves.
The operation of the third embodimen-t will
now be described.
When the operator desires to operate the
carrying apparatus 102, the operator first operates
the -transmitter to transmit the radio waves. The receiver
174 receives the radio waves indicative of the control
commands and sends the control commands to the power
source 122 and hydraulic apparatus 120. In response
to the control commands, the power source 122 and
hydraulic apparatus 120 are made operative, thereby
driving the clutch 124 and speed change apparatus 126
through the operating oil stored in the second hollow
portion 122 of the outer casing 104. Thus, the first
to third drive wheels 132, 134, and 136 are driven,
thereby operating the first to third sub cableways
138, 140, and 142 and moving the carrying apparatus
102. In this case, the running wheels 166 are guided
by the main cableway 164 and run. After the carrying
appara-tus 102 was stopped at a desired position, the first
and second hoisting means 128 and 130 are driven to
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~LZ68~33~3
hang up the object. The first to third drive wheels
132, 134, and 136 are again driven and the sub cableways
are operated, thereby moving the carrying apparatus
102 to a desired position. In this manner, the object
is conveyed.
According to -the -third embodiment, the fuel
oil for the power source 122 is stored into the first
hollow portion 110 oE the outer casing 104 ormed by
the hollow body. The operating oil for the hydraulic
apparatus 120 ls s-tored into the second hollow portion
112 o the outer caslng 104. Namely, the fuel oil and
the operating oil are separately stored. The outer
casing 104 can be used as the liquid -tank for storing
the liquid which is used by the power unit 116. Thus,
there is no need to separately attach the opera-ting
oil tank and fuel oil tank as in -the conventional carrying
apparatus. Therefore, -the number of parts can be reduced.
The structure of the carrying apparatus 102 can be
simplified and reduced in size. The carrying appara-tus
can be easily handled.
When the first and second hollow portions
llO and 112 are communicated, either one of the fuel
oil for the power source 122 and the operating oil for
the hydraulic apparatus 120 can be stored in those hollow
portions.
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~Z6~383~3
Further, since the carrying apparatus has
been constituted as the two-shafts and six-bodies, when
the carrying apparatus 102 is obliquely upwardly moved,
the fric-tions be-tween the drive wheels and the sub
cableways are enlarged. Thus, the slip of the carrying
apparatus and the like can be prevented. On the con-trary,
when the carrying apparatus 102 is downwardly moved,
the carrying apparatus can be effectively braked. The
runaway of the carrying apparatus is prevented. Thus,
the operating performance is improved.
Moreover, since the firs-t and second hois-ting
means 128 and 130 are provided, the object can be hung
up at two positions -thereof or two objects can be
simultaneously hung up.
On -the other hand, since three sub cableways
are provided, even if one of the sub cableways is cut
away, the carrying apparatus can be supported by the
other sub cableways, so that it is safe.
The present invention is not limited to -the
foregoing third embodiment but many variations and
modifications are obviously possible.
For example, in -the third embodiment, the
fuel oil and operatiny oil are stored in the outer
casings formed by -the hollow bodies. However, the cooling
water and the like which are used in the power unit
39
can be also s-tored in the outer casings.
The invention is not limited to the two-shafts
and six-bodies but may be also constituted as the
one-shaft and two-bodies or two-shafts and four-bodies.
~ lthou~h two oùter casings are arranged
in parallel, one outer casing may be also used.
Further, the first to thlrd drive wheels 132,
134, and 136 can be selectively used.
The third sub cableway 142 can be also supported
by a guide roller portion which is separately attached.
As will be obvious from the above detailed
description, according to the invention, at least two
rotary shafts are provided, the drive wheel is at-tached
to each rotary shaft, and the sub cableway is wound
around each drive wheel. Therefore, the frictions which
are caused be-tween the drive wheels and the sub cableways
can be increased. When the carrying apparatus is
obliquely upwardly moved, the slip of carrying appara-tus
and the like are prevented. When the carrying apparatus
is downwardly moved, the carrying apparatus is effectively
braked. The operating performance can be improved.
In addition, the total weigh-t of the carrying apparatus
and objec-t which acts on each sub cableway can be reduced,
so that the cut-away of the sub cableways can be avoided.
Even if one of the sub cableways is cu-t away, the carrying
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~ z~;8~3g
apparatus can be held a-t the fixed positlon by the
remaining sub cableways and the main cableway and i-t
is safe. Moreover, the sub cableways can be selec-tively
wound around a desired drive wheel. The use efficiency
can be improved.
The liquids which are used by the power unit
are s-tored in the hollow portions of the outer casings
formed by the hollow bodies and the outer casings are
used as -the liquid tanks. Thus, the operating oil tank
of the hydraulic apparatus, the fuel oil tank, and -the like
do not need to be separately provided. The number oE
parts can be reduced. The cons-titution of the carrying
apparatus can be simplified and reduced in size and
weight. The carrying apparatus can be easily handled.
The invention is practically useful.
Further, the outer casing is also used as
the liquid tank for the power unit, thereby simplifying
the structure of the carrying apparatus. In addition,
by storing the liquids in almost of the outer casings,
the carrying apparatus is balanced and the stability
and safety can be also improved.
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