U.S. patent application number 11/409795 was filed with the patent office on 2006-11-16 for telescopic shelter system.
This patent application is currently assigned to KEOWON INDUSTRY CO., LTD.. Invention is credited to Wan Young Lee.
Application Number | 20060254160 11/409795 |
Document ID | / |
Family ID | 37417712 |
Filed Date | 2006-11-16 |
United States Patent
Application |
20060254160 |
Kind Code |
A1 |
Lee; Wan Young |
November 16, 2006 |
Telescopic shelter system
Abstract
A telescopic shelter system comprises two pairs of guide rails
having a pair of parallel outer rails and a pair of parallel inner
rails arranged at an inner side of the outer rails, a plural of
shelters comprising two side walls facing each other and a roof
connecting at the top of the two side walls, the two side walls and
the roof are tapered at one end of the shelter, each shelter
arranged on the guide rail in a row, a plural wheels provided at
each lower portion of two side walls of each shelter along movement
direction of the shelter, having a pair of first wheel running on
the outer rail and a pair of second wheel running on the inner
rail, and a motor mounted on the shelter for providing a
clockwise-counterclockwise movement of the wheel.
Inventors: |
Lee; Wan Young; (Seoul,
KR) |
Correspondence
Address: |
SHERIDAN ROSS PC
1560 BROADWAY
SUITE 1200
DENVER
CO
80202
US
|
Assignee: |
KEOWON INDUSTRY CO., LTD.
|
Family ID: |
37417712 |
Appl. No.: |
11/409795 |
Filed: |
April 21, 2006 |
Current U.S.
Class: |
52/67 |
Current CPC
Class: |
E04B 1/34368 20130101;
E04B 1/34305 20130101 |
Class at
Publication: |
052/067 |
International
Class: |
E04B 1/343 20060101
E04B001/343 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 29, 2005 |
KR |
10-2005-0036255 |
Claims
1. A telescopic shelter system comprising: two pairs of guide rails
having a pair of parallel outer rails and a pair of parallel inner
rails arranged at an inner side of the outer rails; a plural of
shelters comprising two side walls facing each other and a roof
connecting at the top of the two side walls, at one shelter, a
width of the two side walls and a height of the roof at one end of
the shelter become gradually small toward another end of the
shelter, each shelter arranged on the guide rail in a row; a plural
wheels provided at each lower portion of two side walls of each
shelter along movement direction of the shelter, having a pair of
first wheel running on the outer rail and a pair of second wheel
running on the inner rail; and a motor mounted on the shelter for
providing a clockwise-counterclockwise movement of the wheel.
2. The telescopic shelter system according to claim 1, wherein: the
shelter is comprised of a frame assembly and an enclosure attached
on an outside of the frame assembly, the frame assembly having a
first main frame, a second main frame that is arranged against the
first main frame in a movement direction of the shelter, a plural
of sub-frames that are arranged between the first main frame and
the second main frame and arranged at a place farther from the
first main frame and arranged at a place farther from the second
main frame and a plural of cross beams that connect each of main
frame and sub-frame, a width between two posts of the first main
frame is the same as that of the outer rail, a width between two
posts of the second main frame is the same as that of the inner
rail, and the enclosure covers both two side walls and the
roof.
3. The telescopic shelter system according to claim 2, wherein: the
first main frame extends perpendicularly outward to both each side
wall and the roof, and the second main frame extends
perpendicularly inward to both the each side wall and the roof.
4. The telescopic shelter system according to claim 3, wherein: a
flexible strip is provided along an edge of a large opening.
5. The telescopic shelter system according to claim 3, wherein: the
system is further comprised of a braking means that stops the
movement of the shelter.
6. The telescopic shelter system according to claim 5, wherein: a
collision sensor is provided at the shelter, by which a distance
between two shelters approaching to each other, a signal sends to
the motor to stop the movement of the motor, and the braking means
operates.
7. The telescopic shelter system according to claim 6, wherein: the
collision sensor is comprised of a first sensor provided on the
first main frame and a second sensor provided on the second main
frame.
8. The telescopic shelter system according to claim 6, wherein: a
position sensor is provided at the shelter, by which a relative
moving position of one shelter to another shelter is detected
during expansion of the shelters, a signal sends to the motor to
stop the movement of the motor, and the braking means is operated,
thus a separation of one shelter from another shelter is
prevented.
9. The telescopic shelter system according to claim 8, wherein: the
position sensor is comprised of a receiver and an emitter which are
provided at each end of neighboring shelters to face each other in
full expansion of the shelters, and two pairs of the position
sensors are intercrossed.
10. The telescopic shelter system according to claim 6, wherein: a
bumper is further provided at the first main frame or/and the
second main frame, by which a collision between the neighboring
shelters is reduced.
11. A telescopic shelter system according to claim 2, wherein: a
gap is generated at a central bottom end of a girder of each main
frame at prefabrication of the shelter, and the gap is bolted when
the shelter is loaded on the guide rail.
12. A telescopic shelter system according to claim 2, wherein: a
gap is generated at an inner joint between a girder and a column of
each main frame at prefabrication of the shelter, and the gap is
bolted when the shelter is loaded on the guide rail.
Description
1. FIELD OF THE INVENTION
[0001] The present invention relates to a shelter system which is
used at an outdoor workshop for large structures, such as an
airplane shed, or gymnasium. More particularly, the invention
relates to a telescopic shelter system in which several shelter
sections are arranged in a row, and can be retracted or expanded,
if necessary.
2. BACKGROUND OF THE INVENTION
[0002] Since large articles are used at a shipyard, or a steel
fabrication plant, the manufacturing process is held mainly
outdoors depending the working environment and it also adds
convenience of transfer and handling.
[0003] A large vessel structure has a heavy weight and an extra
large size which varies from few to several meters. The transfer
and handling of the production is achieved by a large crane, which
also includes a welding process, which is better suited for the
outdoor environment.
[0004] Therefore, in a shipyard, work is sometimes more difficult
due to bad weather such as snow, rain and wind. Moreover, work is
frequently cancelled. It keenly requires a working condition, by
which rain, snow and wind can be avoided to continue to work
outside, regardless of the weather.
[0005] To satisfy the need in a ship and a steel fabrication work
shop, as shown in FIG. 1, a pair of rails "R" is positioned on the
floor of an outdoor workshop. A large shelter section "S" is then
placed on the rails "R". Work can then be processed in the shelter
section "S", regardless of the weather condition.
[0006] If a product "W" must be transferred, the shelter section
"S" moves along the rails "R" as shown in a phantom line of FIG. 1,
and the product "W" is exposed, a crane (not shown) can then lift
the product very easily.
[0007] However, several shelters "S" can be placed on the rails
"R", which differ depending on the workshop environment. Since the
width of respective shelter sections "S" of the conventional art is
the same, each shelter section must be arranged in a row, which
brings a problem that the space occupied by the shelter section
becomes excessively large.
[0008] In other words, in clear weather, some or all of the shelter
sections can be removed to utilize the clear weather. Even if the
shelter section "S" or a few sections are omitted, work is still
possible; (e.g. one or two shelter sections can be used depending
on the product's extent).
[0009] However, when many shelter sections are used, they must be
arranged in a row, and a space the same volume as the shelter
section is allotted to the other shelters, which leads excessive
space.
[0010] Moreover, the space required for the entire shelters must be
the sum of all the shelter section plus, at a minimum, one more
shelter section, for enough space to divide the shelter sections,
in order to transfer a product "W" using a crane. Additional rail
"R" must be installed for recession of the shelter section. Thus, a
space of a workshop must be widened beyond necessity.
[0011] Furthermore, in the case that the product "W" to be moved is
disposed at the middle of the shelter section array, several
shelter sections must be moved successively in order to pick up the
product "W", which brings another problem.
[0012] Furthermore, on a clear day, it is preferable that a shelter
section "S" is removed from the working location to receive better
lighting and better air circulation. But, an open space can be
attained by shelter section's movement. Even though the weather is
good, work is performed under poor working condition, which leads
other problem.
[0013] To solve the problem, an additional rail "R" is provided to
remove all shelter sections from the working location under good
weather, though it extends the length of the entire workshop
space.
[0014] Furthermore, a problem issued by the shelter section's
placement on the rail is shown in FIG. 2. The shelter section is
comprised of the side wall "P" and the roof "c", not a floor, even
though the shelter section has very large volume and heavy weight.
Due to this heavy weight the walls have a tendency to spread away
from each other. Both side walls "P" can not maintain a vertical
configuration due to its own weight. Each bottom end of respective
side walls "P" slopes outward.
[0015] Therefore, it is very difficult that the shelter section is
placed on the guide rail "R" because the wheel installed at the
bottom end of the shelter section "S" is out of alignment with the
guide rail "R".
SUMMARY OF THE INVENTION
[0016] According to the present invention, to order to resolve
these problems, an object of the present invention is to provide a
telescopic shelter system, whereby several shelter sections
arranged on the guide rail in a row can be retracted or expanded,
if necessary, possession space of the shelter section can be
reduced at a minimum, and it adds the efficient use of the
workshop.
[0017] It is a further object of the present invention to provide a
telescopic shelter system, whereby extra rails are not needed for
the moving allowance of the shelter sections for transferring a
production, and the movement of respective shelter sections can be
achieved, and also the movement of only the specific shelter
section covering the production can be attained in an easy way.
[0018] It is a further object of the present invention to provide a
telescopic shelter system, whereby all of shelter sections can be
easily telescoped under clear weather, which contribute comfortable
working conditions to a work shop.
[0019] In order to accomplish the object of the present invention,
a telescopic shelter system has two pairs of guide rails having a
pair of parallel outer rails and a pair of parallel inner rails
arranged at an inner side of the outer rails, and a plural of
shelters comprising two side walls facing each other and a roof
connecting at the top of the two side walls, at one shelter, a
width of the two side walls and a height of the roof at one end of
the shelter become gradually small toward another end of the
shelter, each shelter arranged on the guide rail in a row.
Furthermore, the telescopic shelter has a plural wheels provided at
each lower portion of two side walls of each shelter along movement
direction of the shelter, having a pair of first wheel running on
the outer rail and a pair of second wheel running on the inner
rail, and a motor mounted on the shelter for providing a
clockwise-counterclockwise movement of the wheel.
[0020] According to the present invention, it is preferable that
the shelter is comprised of a frame assembly and an enclosure
attached on an outside of the frame assembly, the frame assembly
having a first main frame, a second main frame that is arranged
against the first main frame in a movement direction of the
shelter, a plural of sub-frames that are arranged between the first
main frame and the second main frame and arranged at a place
farther from the first main frame and arranged at a place farther
from the second main frame and a plural of cross beams that connect
each of main frame and sub-frame, a width between two posts of the
first main frame is the same as that of the outer rail, a width
between two posts of the second main frame is the same as that of
the inner rail, and the enclosure covers both two side walls and
the roof.
[0021] It is preferable that the first main frame extends
perpendicularly outward to both each side wall and the roof, and
the second main frame extends perpendicularly inward to both the
each side wall and the roof.
[0022] It is preferable that the system is further comprised of a
braking means that stops the movement of the shelter.
[0023] It is preferable that a collision sensor is provided at the
shelter, by which a distance between two shelters approaching to
each other, a signal sends to the motor to stop the movement of the
motor, and the braking means operates, and a position sensor is
provided at the shelter, by which a relative moving position of one
shelter to another shelter is detected during expansion of the
shelters, a signal sends to the motor to stop the movement of the
motor, and the braking means is operated, thus a separation of one
shelter from another shelter is prevented.
[0024] Accordingly, several shelter sections arranged on the guide
rail in a row can be retracted or expanded. If necessary,
possession space of the shelter section can be reduced at a
minimum, and it adds the efficient use of the workshop. More, under
clear weather, all of shelter sections can be easily telescoped,
which contribute comfortable working conditions to a work shop.
[0025] Moreover, extra rails are not needed for the moving
allowance of the shelter sections for transferring a prosecution.
The movement of respective shelter sections can be achieved, and
also the movement of only the specific shelter section covering the
production can be attained in an easy way.
[0026] Therefore, the present invention can increase the
convenience, safety, and reliability of a shelter system. It
improves space efficiency of a workshop (such as a shipyard or
steel fabrication plant) that needs the shelter system. It can
largely contribute to utilizing space, by which a very great effect
can be achieved.
BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The above and other objects, features and other advantages
of the present invention will be more clearly understood from the
following detailed description taken in conjunction with the
accompanying drawings, in which:
[0028] FIG. 1 is a general plan view of a conventional shelter
section having a problem;
[0029] FIG. 2 is a front view illustrating a problem issued by the
shelter section's placement on the rail;
[0030] FIGS. 3A and 3B are perspective views illustrating an
expanding state and a contracting state of a telescopic shelter
section of the present invention;
[0031] FIG. 4 is a front view of a telescopic shelter section of
the present invention;
[0032] FIG. 5 is a plan view of FIG. 4;
[0033] FIG. 6 is a sectional view along line VI of FIG. 5;
[0034] FIG. 7 is a perspective view illustrating a frame structure
of a telescopic shelter section of the present invention;
[0035] FIG. 8 is a sectional view along line VIII-VIII of FIG.
7;
[0036] FIG. 9 is a sectional view along line IX-IX of FIG. 7;
[0037] FIG. 10 is an enlarged sectional view along line X-X of FIG.
4;
[0038] FIG. 11 is an enlarged sectional view along line XI-XI of
FIG. 4;
[0039] FIG. 12 is a side view showing an operation of a wheel
employed in a telescopic shelter system;
[0040] FIG. 13 is a front view along line XIII of FIG. 12;
[0041] FIG. 14 is a top plan view showing a travel restriction
means of a telescopic shelter system according to the present
invention;
[0042] FIG. 15 is an enlarged sectional view along line XV-XV of
FIG. 14;
[0043] FIGS. 16A and 16B are enlarged front views showing one
embodiment of a method for avoiding the widening of the shelter
section's wall;
[0044] FIGS. 17A and 17B are enlarged front views showing other
embodiment of a method for avoiding the widening of the shelter
section's wall;
[0045] FIGS. 18A and 18B are enlarged front views showing further
other embodiment of a method for avoiding the widening of the
shelter section's wall; and
[0046] FIG. 19 is a conceptual view illustrating other embodiment
of the telescopic shelter system.
DETAILED DESCRIPTION OF THE INVENTION
[0047] This invention will be described in further detail by way of
exemplary embodiments with reference to the accompanying
drawings.
[0048] As shown in FIGS. 3A to 5, the telescopic shelter system is
comprised of a guide rail 10 mounted in the ground, several shelter
sections 20 arranged in a row along the guide rail 10, telescope
along the guide rail 10, a number of wheels 30 provided at the
lower portion of each shelter section 20 and travel on the guide
rail 10, and a motor 40 mounted on the shelter section 20 for
providing a clockwise/counterclockwise movement of the wheel
30.
[0049] The guide rail 10 is comprised of a pair of outer rails 11
arranged in parallel at a certain distance "s.sub.1" and a pair of
parallel inner rails 12 arranged at an inner side of the outer
rails 11, also at a certain distance. The interval between the
outer rail 11 and the inner rail 12 exists within the slope of a
side wall 20a of the shelter section 20, that is, the slope of the
side wall 20a exists from a front portion toward a rear portion,
which will be illustrated later in FIG. 5.
[0050] Each lower portion of the respective outer and inner rail
11, 12 is grounded in concrete 13, while each upper portion of
respective outer and inner rail 11, 12 protrudes above the ground.
It is why that the guide rail 10 should support the heavy-weight
shelter section 20, and minimal obstruction of passing can be
obtained at a workshop.
[0051] The shelter section 20, as shown in FIGS. 6 to 9, is
comprised of two side walls 20a facing each other and a roof 20b
connecting to the top of the two side walls 20a. The shelter
section 20 has a configuration which is able to telescope into a
neighboring shelter section 20R. The two side walls 20a and the
roof 20b of the shelter section 20 are tapered.
[0052] The shelter section 20 has a frame assembly 21 set in an
array with I shape steel beam and an enclosure 22 attached on the
outside of the frame assembly 21 for protection from rain and
snow.
[0053] The frame assembly 21 has a first main frame 23 having an
up-side-down U shape, a second main frame 24 also having an
up-side-down U shape, and that is arranged against the first main
frame 23 in line with the shelter section 20. The frame assembly 21
further has three sub-frames 25a, 25b, 25c having a same shape. The
sub-frame 25b is arranged between the first main frame 23 and the
second main frame 24, and the sub-frame 25c is arranged at a place
farther from the first main frame 23, and the sub-frame 25a is
arranged at a place farther from the second main frame 24. The
frame assembly 21 has furthermore many cross beams 26 that connect
each of main frames 23, 24 and sub-frames 25a, 25b, 25c.
[0054] A width between two posts 23a of the first main frame 23 is
the same as that of the outer rail 11. A width between two posts
24a of the second main frame 24 is the same as that of the inner
rail 12.
[0055] The sub-column 25a.sub.1, 25b.sub.1, 25c.sub.1 has different
width against three sub frames 25a, 25b, 25c and are placed on a
connecting point between the main columns 23a, 24b in a straight
manner.
[0056] In the sub-frame 25a that is arranged at the narrow opening
of the shelter section 20, the width between two sub columns
25a.sub.1 is smaller than that of the main column 24a of the second
main frame 24. In the sub frame 25c that is arranged at the wide
opening of the shelter section 20, the width between two sub
columns 25c.sub.1 is larger than that of the main column 23a of the
first main frame 23. In the sub frame 25b that is arranged between
the sub frames 25a, 25c, the width between two sub columns
25b.sub.1 is larger than that of two columns 24a of the second main
frame 24, and is smaller than that of two columns 23a of the first
main frame 23.
[0057] Each cross beam 26 crosses each of frames 23, 24, 25a, 25b,
25c along a grade of the side walls 20a and the roof 20b, which
connects the frames 23, 24, 25a, 25b, 25c with each other. The
cross beam 26 that connects the lower end of each frame 23, 24,
25a, 25b, 25c, supports each of the frames 23, 24, 25a, 25b, 25c.
The lower end frame will be named as a base beam 27 for the
following explanation.
[0058] Furthermore, a lot of bracings 28 are provided in a
predetermined pattern between the first main frame 23 and the
second main frame 24 to enhance the structural stability of the
frame assembly 23.
[0059] As shown in FIGS. 10 and 11, the enclosure 22 can be
configured with various shape and material. Preferably, as shown in
FIGS. 10 and 11, the enclosure 22 is attached to the outside of the
frame assembly by means of a girth 29a and a purlin 29b.
[0060] As shown in FIG. 7, the first main frame 23, specifically,
is extended outward from the side wall 20a and the roof 20b, but
the second main frame 24, specifically, is extended inward from the
side wall 20a and the roof 20b. In other words, the main column 23a
and the main girder 23b of the first main frame 23 are extended
above the enclosure 22. The main column 24a and the main girder 24b
of the second main frame 24 are extended below the sub-frames 25a,
25b, 25c and the cross beam 26.
[0061] As shown in FIGS. 8 and 10, when the shelter section 20
comes close to the neighboring shelter sections 20R, 20F, the gap
generated between the shelter sections can be minimized. Two
corresponding ends of the shelter sections are blocked by the first
and second main frame 23, 24. Without the additional stopper, the
distance the shelter section can telescope can be properly
restricted.
[0062] The flexible strip 90 is attached along the edge of the wide
opening of the shelter section 20. The flexible strip 90 can
elastically contact on the edge of the side wall 20a and the roof
20b of the neighboring shelter section 20R so that snow or rain can
not permeate into the shelter section through the gap. The flexible
strip 90, which can be made of a rubber plate, has a width that can
touch on the outer cover of the neighboring shelter section 20R
when the one shelter section 20 is fully distanced from the
neighboring shelter section 20R.
[0063] As shown in FIGS. 4 and 6, the wheel 30 is provided at each
lower portion of two side walls 20a of each shelter section 20 in
the direction of the shelter section's movement. The wheel 30 is
comprised of a set of first wheels 31 running on the outer rail 11
and a set of second wheels 32 running on the inner rail 12.
[0064] As shown in FIGS. 7 and 8, the respective first wheels 31
are provided at the respective base beam 27 at a predetermined
angle to the base beam 27, on which the main column 23a is posted.
Furthermore, the respective second wheels 32 are provided at the
respective base beam 28 at a predetermined angle to the base beam
28, on which the main column 24a is posted.
[0065] As shown in FIGS. 4 and 9, the angle of each wheel 31, 32
corresponds to the horizontal slope of the side wall 20 so that
each wheel 31, 32 is able to run smoothly on the rail guide rail
10.
[0066] The wheel 30, as shown in FIGS. 12 and 13, is comprised of
two pulleys 33 arranged in line with the movement of the shelter
section 20 at a distance, and a wheel bracket 34, which is provided
at the base beam 27 of the shelter section 20.
[0067] The motor 40 is, as shown in FIGS. 12 and 13, located in a
channel of the base beam 27, and a driving sprocket wheel 42 is
provided at a shaft 41 of the motor 40, and a driven sprocket wheel
43 is provided at a pulley shaft 35 that is installed in any one of
the wheel 30. A chain 44 connects the driving sprocket wheel 42 and
the driven sprocket wheel 43 so that the wheel 30 operates. The
motor 40 can be installed at each of the wheel 30 or at any one--a
pair of the first wheel 31 or the second wheel 32--of the wheel
30.
[0068] The telescopic shelter system, preferably, has a braking
means 50 to stop the shelter section 20 that is run by the motor
40.
[0069] The moving shelter section 20 can be stopped at a
predetermined position only by the operation stop of the motor 40
because the heavy-weight shelter section 20 might move at a very
slow speed. Especially, in the conventional shelter having same
width at each opening, a moving shelter can be stopped only by
contact with a stationary shelter. However, in the prevent
invention, there is no contact between the neighboring shelter
sections, but one shelter section can be retracted into or extended
from the neighboring shelter section. Therefore, it is necessary
that the shelter should be stopped at an accurate point.
[0070] The braking means 50 is, as shown in FIG. 12, installed at
the wheel brake 34 of the wheel 30, which can be configured by a
hydraulic brake. A brake shoe 51 makes contact with the
circumstance of any one of the pulleys 33 by operation of hydraulic
power.
[0071] Furthermore, the telescopic shelter system has, as shown in
FIGS. 14 and 15, a collision sensor 60 to avoid a collision between
two approaching shelter sections 20 when in a retracting stage and
a position sensor 70 to avoid a full separation of the moving
shelter section 20 from the neighboring shelter section 20R when in
an expanding stage.
[0072] When the stop of the motor 40 and the operation of the brake
means 50 are achieved by an operator, it is difficult to stop the
shelter section 20 at an accurate point. It leads to a possibility
of either the collision or the separation of two neighboring
shelter section 20F, 20R. That is why the sensors 60, 70 are
employed in the telescopic shelter system.
[0073] The collision sensor 60 can be comprised of a distance
sensor, which is installed on a protrusion of the first main frame
23, by which a distance between a counter end of the stationary
neighboring shelter section 20R and the end of the moving shelter
section 20 can be detected so that the motor 40 is stopped and the
brake means 50 is operated.
[0074] In the telescopic shelter system, as shown in FIGS. 6 and 8,
the shelter section 20 can move inside of the neighboring shelter
section 20R, or the shelter section 20 can move toward the outside
of the shelter section 20F. Therefore, it is desirable that the
collision sensor 60 is comprised of a first sensor 61 installed in
a channel of the first main frame 23 and a second sensor 62
installed in a channel of the second main frame 24.
[0075] In the case that the shelter section 20 telescopes into the
neighboring shelter section 20R, the first sensor 61 installed in
the first main frame 23 of the moving shelter section 20 detects a
distance against the stationary shelter section 20R, and sends a
stop signal to the motor 40 of the shelter section 20. Furthermore,
in the case that the shelter section 20 houses the neighboring
shelter section 20F, the second sensor 62 installed in the second
main frame 24 of the moving shelter section 20 detects a distance
against the stationary shelter section 20F, and sends a stop signal
to the motor 40 of the shelter section 20.
[0076] As shown in FIG. 14, even if the collision sensor 60 is
installed at either the first main frame 23 or the second main
frame 24, the shelter section 20 that moves in both directions can
be stopped at an accurate relative position against respective
neighboring shelter section 20F, 20R. However, if each sensor 60
installed in respective stationary shelter sections 20F, 20R should
stop the operation of the motor 40 installed on the moving shelter
section 20, the motor 40 and the sensor 60 should be electrically
connected to enhance the communication between one another, which
brings on less preferable situation.
[0077] Since a wide gap between respective shelter sections 20,
20F, 20R is exposed as the shelter sections 20, 20F, 20R move away
from one another, the position sensor 70 can, preferably, be
comprised of an emitter 71 for giving off light and a receiver 72
for receiving the light and generating a stop signal for the motor
40, each of which is disposed at respective shelter sections 20,
20F, 20R in a counter manner.
[0078] The emitter 71 is installed near one end of side wall 20a of
respective shelter sections 20, 20F, 20R, and the receiver 72 is
provided near other end of the side wall 20a of the neighboring
shelter sections 20, 20F, 20R. As the shelter section 20 moves away
from the neighboring shelter sections 20F, 20R, a relative moving
position to neighboring shelter sections 20F, 20R can be detected
so that the motor stops.
[0079] As the shelter section 20 recedes from the neighboring
shelter section 20R, the receiver 72 disposed at an outer side wall
20a of the moving shelter section 20 should receive the light
emitted from the emitter 71 provided at an inner side wall 20a of
the neighboring shelter section 20R, which stops the operation of
the motor 40 disposed on the moving shelter section 20. In
contrast, as the shelter section 20 recedes from the neighboring
shelter section 20F, the receiver 72 disposed at an inner side wall
20a of the moving shelter section 20 should receive the light
emitted from the emitter 71 provided at an outer side wall 20a of
the neighboring shelter section 20F, which stops the operation of
the motor 40 disposed on the moving shelter section 20.
[0080] Only with the above arrangement, in the retracting and
expanding operation of the shelter section 20, an accurate position
control can be attained so as to avoid the collision or the full
separation of the shelter section. Although, collision between the
sensors can be caused the sensor or brake means being out of
order.
[0081] Therefore, to relieve an impact from a collision between the
shelter sections, a bumper 80 can be installed at any one of the
first or second main frame 23, 24 (in this embodiment, at the
second main frame).
[0082] Furthermore, as shown in FIG. 2, both side walls "P" can not
maintain a vertical configuration due to its own weight. The
shelter section is placed on the guide rail "R" because the wheel
installed at the bottom end of the shelter section "S" is out of
alignment with the guide rail "R".
[0083] To overcome this problem, in the embodiment, as shown in
FIG. 16A, an intended gap "G" is given to the central bottom end of
the main girder 23b, 24b that are respectively formed at the first
and second main frame 23, 24, by which each bottom end of the side
walls 20a should be widened. When the shelter section 20 is placed
on the guide rail 10, each bottom end of the respective side walls
20a is narrowed. Then a bolt is fastened near the gap between the
main girders 23b, 24b as shown in FIG. 16B, thus accomplishing the
shelter section's placement on the guide rail 10.
[0084] On the other hand, FIGS. 17A to 18B show other embodiment.
Contrary to the previous embodiment, there is a gap allowed at a
mating flange between the main column 23a, 24a and the main girder
23b, 24b. Both bottom ends of the sidewall 20a make separate, and a
bolt is fastened near the gap between the main girder 23b, 24b and
the main column 23a, 24a, thus accomplishing the shelter section's
placement on the guide rail 10.
[0085] FIGS. 17A and 17B show that the main girder 23b, 24b is in
contact with the inner surface of the main column 23a, 24a, and
FIGS. 18A and 18B illustrate that the main column 23a, 24a is in
contact with the bottom surface of the main girder 23a, 24a.
[0086] The operation of the telescopic system will be described
hereinafter.
[0087] Firstly, as shown in FIGS. 3A and 14, when every shelter
section 20 is expanded and covers a workshop, the emitter 71 and
the receiver 72 that are installed on each shelter section 20 are
in a position facing to each other.
[0088] Under a condition, when more than one shelter section should
be moved in order to receive the sun light and circulate the air on
a clear day or to put or remove a production into/from a workshop,
the motor 40 of the corresponding shelter section 20 is operated
through a controller (not shown).
[0089] As shown in FIGS. 3A, 12 and 14, the wheel that is connected
with the motor 40 via a chain 44 rotates in the same direction as
the motor, and runs along the guide rail 10, by which the shelter
section 20 moves on the guide rail 10. Since both side walls 20a
and the roof 20b have a slope configuration, the moving shelter
section 20 telescopes into the neighboring shelter section 20R or
covers the neighboring shelter section 20F.
[0090] The movement of the shelter section 20 continues, and the
correlative end of the shelter section 20 approach the second main
frame 24 of the neighboring shelter section 20R or the first main
frame 23 of the neighboring shelter section 20F. The collision
sensor 60 detects the distance to the approaching shelter section
20. As the distance is within a predetermined value, the sensor 60
generates a stop signal for the operation of the motor 40 as well
as an operation signal for the braking means 50. Finally, the
movement of the shelter section 20 stops.
[0091] With the movement of each shelter section 20, as shown in
FIG. 3B, all of shelter sections telescopes into place in a narrow
space. Otherwise, one or more shelter sections 20 can be moved
without reference to a position of the moving shelter section, and
the proper area can be opened to allow the transfer of the
production.
[0092] Next, in contrast, as shown in FIG. 3B, under the condition
that every shelter section 20 is telescoped, the shelter section 20
should be moved out in order to protect from rain, snow or wind,
and the motor 40 of the corresponding shelter section 20 is
operated through a controller (not shown).
[0093] As shown in FIGS. 12 and 19, the wheel that is connected
with the motor 40 via a chain 44 rotates in the same direction as
the motor, and runs along the guide rail 10, by which the shelter
section 20 moves on the guide rail 10. The moving shelter section
20 moves out from the neighboring shelter section 20R or recedes
from the neighboring shelter section 20F.
[0094] The movement of the shelter section 20 continues, and the
correlative end of the shelter section 20 arrives at the other end
of the neighboring shelter section 20R or of the neighboring
shelter section 20F.
[0095] The emitter 71 and the receiver 72 are facing each other,
each of which is installed as a pair in the respective shelter
section. The receiver 72 located at the moving shelter section 20
detects a light emitted from the emitter 71 located at either the
shelter section 20R or the shelter section 20F.
[0096] The position sensor 70 generates a stop signal for the
operation of the motor 40 as well as an operation signal for the
braking means 50. Finally, the movement of the shelter section 20
stops.
[0097] With the movement of each shelter section 20, as shown in
FIG. 3A, all of the shelter sections are expanded to cover whole
space of the workshop.
[0098] Furthermore, as shown in FIG. 19, in case one or more
shelter sections 20 can be adapted depending on the work volume, a
controller stops the operation of the position sensor 70, and the
motor 40 is operated.
[0099] Even if the moving shelter section 20 moves out from the
neighboring shelter section 20R or recedes from the neighboring
shelter section 20F, there is no operation to the position sensor
70. Thus, the shelter section 20 can separate from the neighboring
shelter sections 20R, 20F. The shelter section 20 moves to the
necessary position, and a controller generates a stop signal to the
operation of the motor 40 as well as the operation signal for the
braking means 50. Finally, the movement of the shelter section 20
stops.
[0100] When more shelter section 20 is necessary, the same as
previous description, the shelter section is taken from the
telescoped shelter section array. The position sensor 70 disposed
on both the already moved shelter section 20 and the now moving
shelter section 20 is activated. With the operation of the motor
40, two shelter sections approach each other. Finally, the position
sensor 70 is activated at the fully retracted position of two
shelter sections.
[0101] In other words, the front end of the moving shelter section
20 moves to the partial covering to the rear end of the shelter
section 20F, and the receiver 72 provided at the shelter section 20
can detect the light emitted from the emitter 71 provided at the
shelter section 20F, and generates the signal for stopping the
motor 40 and for activating the braking means 50, thus stopping the
movement of the shelter section 20. The above step can be applied
to the condition between the shelter section and the shelter
section 20R. Therefore, no whole fully telescope between the
shelter section 20 and the shelter section 20R, 20F is taken
place.
[0102] According to the telescopic shelter system described above,
several shelter sections arranged on the guide rail in a row can be
retracted or expanded. If necessary, possession space of the
shelter section can be reduced at a minimum, and it adds the
efficient use of the workshop. More, under clear weather, all of
shelter sections can be easily telescoped, which contribute
comfortable working conditions to a work shop.
[0103] Moreover, extra rails are not needed for the moving
allowance of the shelter sections for transferring a production.
The movement of respective shelter sections can be achieved, and
also the movement of only the specific shelter section covering the
production can be attained in an easy way.
[0104] Furthermore, more shelter sections can be arranged in less
space, and also a usable space of the shelter section can be
obtained in a variable manner. It can be employed at various
locations, such as, at a shipyard, steel fabrication plant,
airplane shed, a train depot, or a gymnasium.
[0105] Therefore, the present invention can increase the
convenience, safety, and reliability of a shelter system. It
improves space efficiency of a workshop (such as a shipyard or
steel fabrication plant) that needs the shelter system. It can
largely contribute to utilizing space, by which a very great effect
can be achieved.
* * * * *