U.S. patent application number 13/233494 was filed with the patent office on 2012-04-19 for traversor guide apparatus.
This patent application is currently assigned to SUN-BEE INSTRUMENTS, INC.. Invention is credited to Seung-Bok KIM, Jun-Young PARK.
Application Number | 20120091247 13/233494 |
Document ID | / |
Family ID | 44862580 |
Filed Date | 2012-04-19 |
United States Patent
Application |
20120091247 |
Kind Code |
A1 |
KIM; Seung-Bok ; et
al. |
April 19, 2012 |
TRAVERSOR GUIDE APPARATUS
Abstract
A traversor guide apparatus is disclosed. The present invention
makes it possible to accurately measure a moved distance of an
object by keeping a wire tightly wound on a bobbin even when a
bobbin has an instant rotation.
Inventors: |
KIM; Seung-Bok; (Seoul,
KR) ; PARK; Jun-Young; (Seoul, KR) |
Assignee: |
SUN-BEE INSTRUMENTS, INC.
Seoul
KR
|
Family ID: |
44862580 |
Appl. No.: |
13/233494 |
Filed: |
September 15, 2011 |
Current U.S.
Class: |
242/484.2 |
Current CPC
Class: |
B65H 75/265 20130101;
B65H 54/2848 20130101 |
Class at
Publication: |
242/484.2 |
International
Class: |
B65H 54/28 20060101
B65H054/28 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 19, 2010 |
KR |
10-2010-0101720 |
Claims
1. A traversor guide apparatus, comprising: a cylindrical bobbin
which includes a plurality of spiral grooves, on which a wire is
wound, are formed in its outer surface at regular intervals in a
longitudinal direction, and a rotation through hole formed at a
central portion of the interior of the same for receiving a shaft;
a driving block which includes an insertion hole, through which the
wire passes, and then is engaged to the spiral groove, and an
engaging protrusion formed at its inner surface and engaged to the
spiral groove; and a cover which covers an outer portion of the
bobbin and includes a guide slot for guiding the driving block so
that the driving block can move in a right angle direction to the
rotation direction of the bobbin during the rotation of the bobbin,
wherein said guide slot includes an inwardly protruded escape
prevention part contacting with an outer surface of the driving
block for thereby preventing an escape of the driving block from
happening.
2. The apparatus of claim 1, wherein at least two engaging
protrusions are provided and thread-engaged with the spiral
grooves, respectively, at two or more portions.
Description
TECHNICAL FIELD
[0001] The present invention relates to a traversor guide
apparatus, and in particular to a traversor guide apparatus which
makes it possible to accurately measure a moved distance of an
object by keeping a wire tightly wound on a bobbin even when a
bobbin instantly rotates.
BACKGROUND ART
[0002] The conventional traversors are disclosed in a Korean
utility model publication number 1989-7806 entitled "traversor", a
Korean patent registration number 10-214358 entitled "a traversor
guide apparatus with a continuously variable transmission
function", and a Korean utility model registration number 20-431019
entitled "traversor apparatus".
[0003] The Korean utility model publication number 1989-7806
entitled "traversor" is characterized in that an eccentric shaft in
the interior of a body is made to cooperate with an angle adjusting
lever and is closely attached to a semicircular tooth-shaped scale
plate fixed at a front side, and a left and right movement bearing
is installed at a lower side and is elastically disposed at an
automatic operation member by using a coil spring, and a main drive
bearing is inserted into a central shaft axially disposed at the
automatic operation member and is supported at one side of the
eccentric shaft, and a driven beating is axially supported at both
sides, and a direction switch bracket is attached at its upper side
for cooperation, so a steel material with a circular cross section
can be reliably wound on a bobbin at regular intervals.
[0004] Next, the Korean patent registration number 10-214358
entitled "a traversor guide apparatus with a continuously variable
transmission function" is characterized to comprise a slide shaft
horizontally disposed at a rotatable body connected with a motor, a
pair of slide bars which are horizontally disposed at the body and
are positioned just above the slide shaft, a drive slider which can
reciprocate straight along the slide shaft, a driven slider which
is inserted movable into the slide bar in an engaged state to the
drive slider, a support plate which is fixedly installed at the
ends of the slide shaft and the slide bar, and a limit switch which
is installed at a lower side of the drive slider and comes into
contact with an operation plate which is installed at the body and
the support plate, respectively, so the moving speed of the winding
object guide can be optimum controlled to meet the general
condition without changing the rotation speed of the slide shaft
when the characteristic or the winding condition of the winding
object is changed.
[0005] Next, the Korean utility model registration number 20-431019
entitled "traversor apparatus" is characterized to comprise a
normal and reverse rotation driving force transfer apparatus
engaged at an end portion of a table frame, a main shaft of which
one end is engaged at the normal and reverse rotation driving force
transfer apparatus, and the other end is engaged at a shaft rest
disposed at the other end of the table frame, a slider which is
engaged at the main shaft and moves left and right by means of the
rotation of the main shaft, a guide shaft which is disposed in
parallel with the main shaft for guiding the movement of the
slider, a touch sensor which is engaged at two fixing shafts
disposed at the lower side of the main shaft or limiting the moving
range of the slider, a controller which is engaged at the table
frame in such a way to control the operation of the normal and
reverse rotation driving force transfer apparatus by receiving a
signal from the touch sensor, and a driving motor which is disposed
at a lower side of the table frame and transfers a driving force to
the normal and reverse rotation driving force transfer apparatus
via a belt, so that it is possible to precisely adjust the winding
pitches of the steel material wound on the bobbin by very precisely
controlling the moving speed of the slider.
[0006] The above-described conventional arts are directed to a
winding per se; however the traversor of FIG. 1 is used a measuring
sensor which makes it possible to measure the moved distance of an
object, to be measured, like a cylinder or other firefighting hose,
the cylinder designed to open the water gate by using a change in
the length of the wire wound on the bobbin.
[0007] The wire connected to the measured object is wound or
unwound from the bobbin 105 as the measured object moves; at this
time a moving distance computation unit installed at one side of a
rotary shaft 104 which functions like a rotation center of the
bobbin 105 computes a moved distance of the measured object by
computing the change in the length of the wire wound on the bobbin
105.
[0008] The traversor is constructed in such a way that the rotary
shaft 104 and the thread shaft 103 are connected by a timing belt
108, and a moving member 101 moving left and right in cooperation
with the rotation of the thread shaft 103 is thread-engaged to the
thread shaft 103, and a hole 02 is formed at the moving member 101
for feeding the wire connected with the measured object to the
bobbin 105, so the moving member 101, namely, the hole 102 moves as
the bobbin 105 rotates, thus adjusting the position where the wire
having passed the hole 102 is to be wound.
[0009] In the above arts, the tensional fore of the wire wound on
the bobbin 105 via the hole 102 of the moving member 101 is not
easy to maintain due to diverse environmental changes, so the wire
wound on the bobbin 105 is overlapped in double or triple tiers as
shown in FIG. 2A or is wound at different intervals as shown in
FIG. 2B, which results in a problem that the revolution of the
bobbin 105 and the length of the wire wound on the bobbin 105 are
not proportional to each other.
[0010] In other words, what the revolution of the bobbin 105 and
the length of the wire wound on the bobbin 105 are not proportional
to each other comes since the measurement of the moved distance of
the measure object is not accurate. When the wire as shown in FIG.
2A is overlapped once or more, friction occurs between the wires,
thus damaging the wire, which leads to shortening the service life
of wires.
[0011] When the position of the measured object is instantly moved,
the wires gets instantly wound on the bobbin or unwound from the
same, which loosens the wire, thus twisting the wires.
DISCLOSURE OF THE INVENTION
[0012] Accordingly, it is an object of the present invention to
provide a traversor guide apparatus which overcomes the above
problems and makes it possible to accurately measure a moved
distance of an object by keeping a wire tightly wound on a bobbin
even when a bobbin instantly rotates.
[0013] To achieve the above object, there is provided a traversor
guide apparatus which comprises a cylindrical bobbin 10 which
includes a plurality of spiral grooves 11, on which a wire 1 is
wound, are formed in its outer surface at regular intervals in a
longitudinal direction, and a rotation through hole 12 formed at a
central portion of the interior of the same for receiving a shaft
2; a driving block 20 which includes an insertion hole 21, through
which the wire 1 passes, and then is engaged to the spiral groove
11, and an engaging protrusion 22 formed at its inner surface and
engaged to the spiral groove 11; and a cover 30 which covers an
outer portion of the bobbin 10 and includes a guide slot 31 for
guiding the driving block 20 so that the driving block 20 can move
in a right angle direction to the rotation direction of the bobbin
10 during the rotation of the bobbin 10, wherein said guide slot 31
includes an inwardly protruded escape prevention part 32 contacting
with an outer surface of the driving block 20 for thereby
preventing an escape of the driving block 20 from happening.
[0014] In addition, at least two engaging protrusions 22 are
provided and thread-engaged with the spiral grooves 11,
respectively, at two or more portions.
[0015] In addition, the guide slot 31 further comprises an escape
prevention part 32 which is inwardly protruded, thus preventing the
escape of the driving block 20 from happening as the guide slot 31
comes into contact with the driving block 20.
ADVANTAGEOUS EFFECTS
[0016] The traversor guide apparatus according to the present
invention makes it possible to accurately measure a moved distance
of an object by keeping a wire tightly wound on a bobbin even when
a bobbin has an instant rotation.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The present invention will become better understood with
reference to the accompanying drawings which are given only by way
of illustration and thus are not limitative of the present
invention, wherein;
[0018] FIG. 1 is a perspective view illustrating a conventional
traversor guide apparatus;
[0019] FIGS. 2A and 2B are schematic side views illustrating a
state that a wire is wound on a bobbin in a non-uniform shape by
means of the traversor guide apparatus of FIG. 1;
[0020] FIG. 3 is a schematic view illustrating a state that a
traversor guide apparatus is installed at a body according to a
preferred embodiment of the present invention;
[0021] FIG. 4 is a perspective view illustrating a traversor guide
apparatus according to a preferred embodiment of the present
invention;
[0022] FIG. 5 is a disassembled perspective view illustrating a
traversor guide apparatus according to a preferred embodiment of
the present invention; and
[0023] FIGS. 6 and 7 are views illustrating a state that a wire
having passed through an insertion of a driving block of a
traversor guide apparatus is being wound on an outer surface of a
bobbin according to a preferred embodiment of the present
invention.
TABLE-US-00001 [0024] [Descriptions of the reference numerals] 10:
bobbin 11: spiral groove 12: rotation through hole 20: driving
block 21: insertion hole 22: engaging protrusion 30: cover 31:
guide slot 32: escape prevention part
MODES FOR CARRYING OUT THE INVENTION
[0025] The preferred embodiments of the present invention will be
described with reference to the accompanying drawings. The same
references of the figures represent the same elements. In the
descriptions of the present invention, the detailed descriptions of
the related known functions or construction will be omitted so as
to clarify the subject matters of the present invention.
[0026] FIG. 3 is a schematic view illustrating a state that a
traversor guide apparatus is installed at a body according to a
preferred embodiment of the present invention, FIG. 4 is a
perspective view illustrating a traversor guide apparatus according
to a preferred embodiment of the present invention, FIG. 5 is a
disassembled perspective view illustrating a traversor guide
apparatus according to a preferred embodiment of the present
invention; and FIGS. 6 and 7 are views illustrating a state that a
wire having passed through an insertion of a driving block of a
traversor guide apparatus is being wound on an outer surface of a
bobbin according to a preferred embodiment of the present
invention.
[0027] The traversor guide apparatus according to a preferred
embodiment of the present invention comprises a bobbin 10, a
driving block 20, a cover 30, a spiral groove 11, a rotation
through hole 12, an insertion hole 12, an engaging protrusion 22, a
guide slot 31 and an escape prevention part 32.
[0028] The bobbin 10 will be first described.
[0029] As shown in FIGS. 3 and 4, the bobbin 10 is made from a
cylindrical member and has a spiral groove 11 on its outer surface.
The spiral groove 11 is continuously formed in a spiral shape in
its longitudinal direction. The engaging protrusion 22 of the
driving block 20 is inserted into the spiral groove 11 and moves
along an outer surface of the bobbin 10.
[0030] As shown in FIGS. 3 and 4, at the inner center of the bobbin
10 is formed a rotation through hole 12, and a shaft is inserted
into the rotation through hole 12. The engaging construction and
method of the shaft 2 and the rotation through hole 12 might be
implemented like the disclosure of the Korean patent registration
number 10-0927441 entitled "Traversor guide apparatus", and their
construction and method are not limited thereto.
[0031] The driving block 20 will be described.
[0032] As shown in FIGS. 3 and 4, the driving block 20 is a member
engaged to a spiral groove 11 formed on an outer surface of the
bobbin 10. When the riving block 20 comes into contact with the
bobbin 10, the engaging protrusion 22 formed on an inner surface of
the driving block 20 is thread-engaged with the spiral groove
11.
[0033] When the bobbin 10 rotates about the shaft 2 inserted in the
rotation through hole 12 the driving block 20 moves along an outer
surface of the bobbin 10 by means of the engagement between the
spiral groove 11 and the engaging protrusion 22. At this time, the
driving block 20 moves at the right angle direction with respect to
the rotation direction of the bobbin 10 by means of the guide slot
formed at the cover 30.
[0034] As shown in FIG. 7, at least two engaging protrusions 22 are
provided. When more than two engaging protrusions 22 are provided,
since the contact area between the driving block 20 and the bobbin
10 increases, the driving block 20 can stably moved along the outer
surface of the bobbin 10.
[0035] The cover 30 will be described.
[0036] The cover 30 serves to cover the outer side of the bobbin 10
and has a guide slot 31.
[0037] The guide slot 31 becomes open in the direction in
consistent with the longitudinal direction of the bobbin 10. The
driving block 20 is guided in the longitudinal direction of the
bobbin 10 by means of the guide slot 31.
[0038] As shown in FIGS. 5 and 6, it is preferred that a driving
block penetration part 33 sequentially formed with the guide slot
31 is formed at one end of the cover 30 so that the driving block
20 can penetrate into the guide slot 31 when the cover 30 and the
bobbin 10 engaged with each other.
[0039] It is preferred that the escape prevention part 32 is formed
at the guide slot 31 for preventing the escape of the driving block
20 from happening. The escape prevention part 32 is inwardly
protruded from the upper side of the guide slot 31.
[0040] The inner lower surface of the inwardly protruded escape
prevention part 32 contacts with the outer surface of the driving
block 20, thus preventing the escape of the driving block 20 from
happening.
[0041] The cover 30 covers the outer surface of the bobbin 10 in
such a way to reliably fix the wire 1 at the spiral groove 11.
[0042] In another example of the present invention, the driving
block 20 is fixed by the cover 30; however a hook (not shown) to be
elastically engaged with the spiral groove 11 might be provided at
the driving block 20.
[0043] It is preferred that the escape prevention part 32 is
protruded to an extent that the position of the driving block 20
can be recognized by a photo sensor from the outside while
preventing an escape of the driving block 20 from happening.
[0044] As shown in FIGS. 6 and 7, there is shown an example that
the wire having passed through the insertion hole 21 of the driving
block 20 is wound on an outer surface of the bobbin 10, so the wire
1 can be more reliably fixed by the inner surface of the cover
30.
[0045] As the present invention may be embodied in several forms
without departing from the spirit or essential characteristics
thereof, it should also be understood that the above-described
examples are not limited by any of the details of the foregoing
description, unless otherwise specified, but rather should be
construed broadly within its spirit and scope as defined in the
appended claims, and therefore all changes and modifications that
fall within the meets and bounds of the claims, or equivalences of
such meets and bounds are therefore intended to be embraced by the
appended claims.
* * * * *