CN110318126A - Centrifugal spinning frame - Google Patents
Centrifugal spinning frame Download PDFInfo
- Publication number
- CN110318126A CN110318126A CN201910238267.7A CN201910238267A CN110318126A CN 110318126 A CN110318126 A CN 110318126A CN 201910238267 A CN201910238267 A CN 201910238267A CN 110318126 A CN110318126 A CN 110318126A
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- CN
- China
- Prior art keywords
- thread tube
- thread
- tube
- yarn
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/08—Spinning or twisting machines in which the product is wound-up continuously cup, pot or disc type, in which annular masses of yarn are formed by centrifugal action
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/02—Spinning or twisting arrangements for imparting permanent twist
- D01H7/74—Cup or like arrangements
- D01H7/78—Constructions of cups, e.g. spinning boxes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The present invention provides centrifugal spinning frame.Centrifugal spinning frame has: tank (1), has opening (1a) directed downwardly and rotates；Thread tube (5) is inserted through the inside of tank (1) via the mounting hole (1c) on the top for being formed in tank (1), by the inside of yarn (4) guidance to tank (1)；And thread tube guide rail (6), it keeps thread tube (5), and it can be mobile along lifting direction (D), thread tube (5) is kept via thread tube holder (7) and by thread tube guide rail (6), and the retentivity (P1) of thread tube holder (7) is applied to the resistance (P2) of thread tube (5) less than the winding part (Y) and non-lift component contact formed because having wound yarn (4) on thread tube (5).Even if power when can also mitigate the yarn (4) for being wound in thread tube (5) and other component contacts in the case where rolling up on the thread tube of yarn (4) has occurred as a result,.
Description
Technical field
The present invention relates to centrifugal spinning frames.
Background technique
1 kind as spinning frame, it is known to use the centrifugal spinning frame of the tank of cylindrical shape.In centrifugal spinning frame
In, while rotating tank with defined revolving speed, the yarn that will be drawn into defined thickness is guided by thread tube to tank,
Thus yarn winding is formed into yarn cake in the inner wall of tank.In addition, leaning on upstream than thread tube if terminating the formation of yarn cake
Then bobbin is inserted into yarn in tank from the inner wall of tank to bobbin backrush by side chopped strands.
In previous centrifugal spinning frame, there are following situations, and as shown in (a) of Fig. 7, proper yarn 104 is wound in
The inner wall of tank 101 is come when forming yarn cake C, as shown in (b) of Fig. 7, yarn 104 is wound in thread tube 105.The phenomenon is known as
" being rolled up on thread tube ".If yarn 104 is wound in thread tube 105, cause to form the winder of yarn in the outside of thread tube 105
Divide Y.Therefore, when in order to avoid yarn cheese at after make in bobbin insertion tank when contact of the thread tube 105 with bobbin and make
When thread tube 105 is mobile, as shown in (c) of Fig. 7, there are it is such a possibility that: be just wound in the winding of the yarn of thread tube 105
Part Y is contacted with the tank 101 rotated.If the winding part Y of yarn is contacted with tank 101, it is likely that lead to thread tube 105
The breakage of the components such as bending.
In consideration of it, carrying out jet in the spinning frame documented by patent document 1 from thread tube top end part, controlling thread tube
Air-flow near top end part prevents yarn in the case where rolling up upper on thread tube.
Patent document 1: Japanese Patent Publication 26-003129 bulletin
However, as the spinning frame of patent document 1, even if the case where controlling the air-flow near thread tube top end part
Under, it can not entirely prevent rolling up on the thread tube of yarn.
Summary of the invention
For the present invention precisely in order to solving such problems and completing, the purpose of the present invention is to provide a kind of centrifugal spinning
Machine, the centrifugal spinning frame can also prevent the breakage of component in the case where rolling up on the thread tube that yarn has occurred.
In order to solve the above problems, centrifugal spinning frame according to the present invention has: tank, has opening directed downwardly and revolves
Turn；Thread tube, through the formation of the top of tank mounting hole and be inserted through the inside of tank, yarn is guided to the inside of tank；With
And thread tube guide rail, thread tube is kept, and can move along lifting direction, thread tube is via thread tube holder and by guide
Pipe guide rail is kept, and the retentivity of thread tube holder is less than because for by the winding part formed due to having wound yarn on thread tube
With the resistance of the be applied to thread tube of non-lift component contact.
Even if can also mitigate the yarn for being wound in thread tube in the case where rolling up on the thread tube that yarn has occurred as a result,
Power when line and other component contacts, prevents the breakage of component.
Alternatively, it is also possible to be, the thread tube guide rail of centrifugal spinning frame according to the present invention by thread tube with lead
The frictional force that generates between spool holder keeps thread tube.
Alternatively, it is also possible to be, the thread tube of centrifugal spinning frame according to the present invention has recess portion, thread tube holder
With the protrusion that can be engaged with the recess portion of thread tube, engaged by the recess portion of thread tube with the protrusion of thread tube holder, thus
Thread tube guide rail keeps thread tube.
Alternatively, it is also possible to be to have guide tube sensor, which is maintained at thread tube to thread tube and leads
Rail such case is detected.
Also, it is also possible to be provided between the tank and thread tube of rotation non-rotary non-rotating relative to thread tube
Portion, due to being rolled up on thread tube in the state of having wound yarn on thread tube, if keeping thread tube upward by thread tube guide rail
Side is mobile, then the yarn for being wound in thread tube is contacted with non-rotating portion.
Alternatively, it is also possible to be, non-rotating portion is the thread tube guiding piece for the cylindrical shape being set between tank and thread tube,
Thread tube can movably be contained in the inside of thread tube guiding piece along lifting direction, be formed in the end of thread tube guiding piece convex
Edge, due to being rolled up on thread tube in the state of having wound yarn on thread tube, if keeping thread tube upward by thread tube guide rail
Side is mobile, then is wound in the yarn of thread tube and the Hp contacts of thread tube guiding piece.
Centrifugal spinning frame involved according to the present invention also can in the case where rolling up on the thread tube that yarn has occurred
Prevent the breakage of component.
Detailed description of the invention
Fig. 1 is the whole construction for indicating the main shaft portion of centrifugal spinning frame involved in embodiments of the present invention
Schematic diagram.
Fig. 2 is the enlarged cross-sectional view indicated near the lower end of the thread tube guiding piece of centrifugal spinning frame shown in FIG. 1.
Fig. 3 is that the amplification of the contact site between the thread tube holder and thread tube of centrifugal spinning frame shown in FIG. 1 is cutd open
View.
Fig. 4 is the flow chart for indicating the process of movement of centrifugal spinning frame shown in FIG. 1.
(a) of Fig. 5~(c) is to indicate that thread tube is relatively moved relative to thread tube guide rail, is detached from from thread tube guide rail
Process figure.
Fig. 6 is between the thread tube holder of centrifugal spinning frame involved in other embodiments of the invention and thread tube
Engagement site enlarged cross-sectional view.
Fig. 7 is to indicate that the figure of the process of the winding of yarn occurs in the thread tube of previous centrifugal spinning frame.Fig. 7's
It (a) is to indicate to form the figure of the state of yarn cake in the inner wall of tank, (b) of Fig. 7 indicates that yarn has occurred in yarn cheese after
The figure for the state rolled up on thread tube, (c) of Fig. 7 are to indicate that thread tube in the state of having wound yarn forms shifting upwards
The figure of dynamic state.
[description of symbols]
1 tank (non-lift component), 1a opening, 1c mounting hole, 2a bearing (non-lift component), 4 yarns, 5 thread tubes, 6 are led
Spool guide rail, 7 thread tube holders, 8 thread tube guiding pieces (non-rotating portion, non-lift component), 8b flange, 10 thread tubes sensing
Device, the main shaft portion of 100 centrifugal spinning frames, D go up and down direction, P1 retentivity, P2 resistance, Y winding part.
Specific embodiment
Hereinafter, based on attached drawing, embodiments of the present invention will be described.
The schematic diagram of the main shaft portion 100 of centrifugal spinning frame is shown in Fig. 1.In addition, the main shaft of centrifugal spinning frame
Part 100 arranges on board (not shown) to be arranged and is used multiplely.
As shown in Figure 1, the tank 1 that the main shaft portion 100 of centrifugal spinning frame has a substantially cylindrical shape.Tank 1 has downward
Opening 1a.Bobbin 12 is arranged in tank 1.Bobbin 12 can be along lifting direction D that is, up and down direction is gone up and down, when bobbin 12
When rising to topmost, bobbin 12 is accommodated in the inside of tank 1.
Tank supporting part 2 is installed on tank 1.In the inside of tank supporting part 2, bearing 2a is set.In addition, bearing 2a's
Thread tube guiding piece 8 is arranged in internal hollow portion.Thread tube guiding piece 8 by with bearing 2a it is non-contacting in a manner of be configured.It leads
Spool guiding piece 8 is shaped generally as cylindrical shape, is respectively formed flange 8a, 8b in the top and bottom of thread tube guiding piece 8.Such as
Shown in Fig. 2, the flange 8b of the lower end of thread tube guiding piece 8 is arranged to lower end than the bearing 2a in tank supporting part 2 and tank 1
The upper surface 1b of inner space is on the lower.In addition, tank 1 can relatively be carried out via bearing 2a relative to thread tube guiding piece 8
Rotation.In addition, the thread tube 5 of the guidance of yarn 4 to the inside of tank 1 can be movably accommodated in thread tube guidance along lifting direction D
The inside of part 8.In addition, bearing 2a and thread tube guiding piece 8 are inserted via the mounting hole 1c on the top for being formed in tank 1 in tank 1
Inside, therefore bearing 2a and thread tube guiding piece 8 are arranged between thread tube 5 and tank 1.In addition, as shown in Figure 1, thread tube 5
Lower end is prominent to the inside of tank 1.The yarn outlet 5b that yarn 4 is discharged is formed in the lower end of thread tube 5.Also, guide
Pipe 5 is prominent from the upper end of tank supporting part 2 and extends.
In addition, being provided with guiding piece seat guide rail 15 on tank supporting part 2.Guiding piece is installed in guiding piece seat guide rail 15
Seat 9.Engaged by the flange 8a of the upper end of thread tube guiding piece 8 with guiding piece seat 9, to support thread tube by guiding piece seat 9
Guiding piece 8.
Also, the upper part of thread tube 5 is kept by thread tube guide rail 6.It is formed in thread tube guide rail 6 for thread tube 5
The thread tube retaining hole 6a of insert.In addition, as shown in figure 3, there are gaps between thread tube 5 and thread tube retaining hole 6a.It leads
The face of the downside of spool guide rail 6 is equipped with cricoid thread tube holder 7 along thread tube retaining hole 6a.Thread tube holder 7
It is formed by resin.Thread tube holder 7 keeps thread tube 5 by retentivity P1.Retentivity P1 is in thread tube 5 and thread tube
The frictional force generated between holder 7.I.e., thread tube guide rail 6 keeps thread tube via thread tube holder 7 with retentivity P1
5.In addition, by the power for being applied more than retentivity P1 to thread tube 5, so that thread tube 5 can be relative to thread tube guide rail 6 along liter
Drop direction D is relatively moved.In addition, as shown in Figure 1, thread tube guide rail 6 in the state of maintaining thread tube 5, can be along liter
It is mobile that direction D drops.In addition, by with the rising of thread tube guide rail 6 and when thread tube 5 rises, the upper end 5a of thread tube 5
The upper limit of height is set as limit level H.
The upside of thread tube guide rail 6 is provided with drafting system 3, which is drawn into defined thickness for yarn.
In addition, being provided with guide tube sensor 10 between drafting system 3 and thread tube guide rail 6.Guide tube sensor 10 is reflective
Optical sensor.Guide tube sensor 10 is located at the position lower than the limit level H of the upper end 5a of thread tube 5 with optical axis 10a
Mode be arranged.
In addition, the board that is arranged of main shaft portion 100 in multiple centrifugal spinning frames is provided with the cylinder of buggy formula
Pipe removing device 11, the bobbin removing device 11 can be moved along the main shaft portion 100 of centrifugal spinning frame direction arranged side by side.Cylinder
Pipe removing device 11 can be held with mechanical arm 11a the bobbin 12 of the main shaft portion 100 of respective centrifugal spinning frame and by its
It removes.
Bobbin removing device 11 constitutes bobbin backoff mechanism.
Then, with Fig. 4, the movement of the main shaft portion 100 of centrifugal spinning frame is illustrated.
Firstly, forming yarn cake in the inner wall of tank 1 as shown in the step S1 of Fig. 4.Specifically, as shown in Figure 1, tank 1 just
In the state of high speed rotation, yarn 4 is guided to the inside of tank 1 by thread tube 5, is arranged from the yarn of the lower end of thread tube 5
It exports 5b and yarn 4 is discharged.To the centrifugal force that the effect of yarn 4 is generated by the rotation of tank 1, yarn 4 is pushed into the inner wall of pressure tank 1 to shape
Yarn cake.At this point, thread tube guide rail 6 is moved back and forth along lifting direction D, the position of the yarn outlet 5b of the lower end of thread tube 5 as a result,
It sets and yarn 4 is also discharged while moving, form yarn cake.
Although thread tube guiding piece 8 is static in addition, tank 1 is just in high speed rotation.Herein, 8 structure of thread tube guiding piece
At non-rotating portion.
Then, as shown in the step S2 of Fig. 4, after forming yarn cake, increase thread tube guide rail 6.Moreover, such as step S3 institute
Show, judges whether to detect thread tube 5 by guide tube sensor 10.Thread tube 5 is being detected by guide tube sensor 10
In the case where just rising together with thread tube guide rail 6, since thread tube 5 is in the state kept by thread tube guide rail 6, so
Be judged as on the thread tube of yarn 4 volume there is no.Then, the main shaft portion 100 of centrifugal spinning frame movement picture usually that
Sample moves to the process (step S4) of 12 backrush of bobbin to yarn 4.
On the other hand, in step s3, in the case where thread tube 5 are not detected by guide tube sensor 10, judgement
It is rolled up on thread tube for yarn 4 has occurred.Specifically, because yarn 4 is wound in thread tube 5, and being led as shown in (a) of Fig. 5
The periphery of spool 5 forms the winding part Y of yarn.Then, as shown in (b) of Fig. 5, if on thread tube guide rail 6 and thread tube 5
It rises, then the winding part Y of yarn is contacted with the flange 8b of the lower end of thread tube guiding piece 8, and downward resistance is generated to thread tube 5
P2.If resistance P2 becomes bigger than the retentivity P1 that thread tube guide rail 6 forms thread tube 5, as (c) of Fig. 5, guide
The upper end of pipe 5 is relatively moved out in downward direction relative to the thread tube retaining hole 6a of thread tube guide rail 6.Therefore, it is sending out
Given birth to yarn 4 to thread tube 5 wind in the case where, the guide tube sensor 10 for being set to the upside of thread tube guide rail 6 can not reach
Detect the presence of thread tube 5.I.e., thread tube 5 is detected by guide tube sensor 10 and this feelings is not kept by thread tube guide rail 6
Condition.
In this way, step S5 as shown in Figure 4 is such in the case where rolling up on the thread tube that yarn 4 has occurred, bobbin is removed
The mechanical arm 11a of device 11 holds bobbin 12 and is removed.
So far, preferably in related centrifugal spinning frame, the thread tube for being set to thread tube guide rail 6 is kept
Part 7 keeps the retentivity P1 of thread tube 5 than being applied to because the winding part Y for being formed in thread tube 5 is with non-lift component contact
The resistance P2 of thread tube 5 is small.Therefore, thread tube 5 is applied to by resistance P2, so that thread tube 5 can be led relative to thread tube
Rail 6 is relatively moved along lifting direction D, therefore, due to being formed in the winding part Y of thread tube 5 with the contact of others components
The power of generation is alleviated.Therefore, even if can also prevent from being centrifuged in the case where rolling up on the thread tube that thread tube 5 produces yarn 4
The breakage of the component of the main shaft portion 100 of formula spinning frame.
In addition, in this embodiment, non-lift component is tank 1, bearing 2a and thread tube guiding piece 8.
In addition, thread tube 5 passes through the frictional force itself generated between thread tube holder 7, and protected by thread tube guide rail 6
It holds.It is applied with the feelings of the resistance P2 of specified value or more to thread tube 5 while keeping thread tube 5 with easy construction as a result,
Under condition, thread tube 5 is also readily able to relatively move relative to thread tube guide rail 6 along lifting direction.
In addition, guide tube sensor 10 to thread tube 5 whether by thread tube guide rail 6 holding detect.As a result, if inspection
Measure thread tube 5 and relatively moved in downward direction relative to thread tube guide rail 6, and from thread tube guide rail 6 be detached from if, then can
It is judged as and is rolled up on the thread tube that thread tube 5 has yarn 4.
In addition, when being rolled up on the thread tube for producing yarn 4 on thread tube 5, the winding part Y of the yarn of thread tube 5 with
The flange 8b of the lower end of thread tube guiding piece 8 as non-rotating portion is contacted.Therefore, it is revolved with the winding part Y of yarn and tank 1 etc.
The case where component contact turned, is compared, can make to contact caused by power tail off.
Also, be judged as have on thread tube 5 on the thread tube of yarn 4 roll up in the case where, due to 5 energy of thread tube
It is enough relatively to be moved relative to thread tube guide rail 6 along lifting direction D, so there are the Gus that thread tube 5 is contacted with bobbin 12
Consider.Therefore, bobbin removing device 11 removes bobbin 12, to prevent the contact between thread tube 5 and bobbin 12.
In addition it is also possible to be, guide tube sensor 10 detect thread tube 5 relative to thread tube guide rail 6 relatively to
Lower direction is mobile, and after the disengaging of thread tube guide rail 6, the display alerted removes bobbin 12 manually.In addition, by not removing
It removes bobbin 12 and bobbin 12 is made laterally to fall and keep out of the way it, thus can also prevent the contact between thread tube 5 and bobbin 12.
In addition, in this embodiment, thread tube 5 passes through the frictional force itself generated between thread tube holder 7, and
It is kept by thread tube guide rail 6, but it's not limited to that for the keeping method of thread tube 5.
For example, it can be as shown in fig. 6, forming recess portion 13 in the periphery of thread tube 5, and utilize recess portion 13 and guide
Engaging between the protrusion 14 of pipe holder 7, to keep thread tube 5 relative to thread tube guide rail 6.Alternatively, it is also possible to being to pass through
Protrusion is formed in the periphery of thread tube 5, recess portion is formed in thread tube holder 7, thus protrusion and thread tube using thread tube 5
Engaging between the recess portion of holder 7 keeps thread tube 5 relative to thread tube guide rail 6.
In addition, the retentivity P1 that thread tube 5 is maintained at thread tube guide rail 6 can be to the magnetic force of magnet, it is also possible to bullet
The elastic force of spring component.
In addition, guide tube sensor detects thread tube holder in the case where thread tube holder is spring members
Movement, to judge that thread tube 5 whether from the disengaging of thread tube guide rail 6, moves in downward direction.
In addition, guide tube sensor 10 is not limited to reflective optical sensor, it is also possible to the optics of through mode
Sensor is also possible to the sensor of contact.
In addition, guide tube sensor 10 can also be directly installed on the attached of the thread tube retaining hole 6a of thread tube guide rail 6
Closely.
Alternatively, it is also possible to be, flange 8b, the winder of the yarn of thread tube 5 are not provided in the lower end of thread tube guiding piece 8
Y is divided directly to contact with the lower end of non-lipped thread tube guiding piece 8.
Alternatively, it is also possible to be, relatively rotated in bearing 2a with the inner ring to remain static and relative to inner ring
In the case where outer ring, the non-rotating portion that the winding part Y of the yarn of thread tube 5 is contacted is the lubrication groove of bearing 2a.
In addition, even if thread tube 5 is led also relative to thread tube in the case where thread tube guiding piece 8 rotates together with tank 1
Rail 6 relatively moves in downward direction, produced by the contact between the winding part Y and thread tube guiding piece 8 of the yarn of thread tube 5
Power fully mitigated.
In addition, thread tube 5 is detached from from thread tube guide rail 6 and is separated, and but not limited to this in (c) of Fig. 5, even if
It is that thread tube 5 is not detached from from thread tube guide rail 6, and thread tube 5 relatively moves in downward direction relative to thread tube guide rail 6, by
The power that the winding part Y of yarn contact between thread tube guiding piece 8 generates also is alleviated.
Claims (6)
1. a kind of centrifugal spinning frame, which is characterized in that
Have:
Tank has opening directed downwardly and rotates,
Thread tube is inserted through the inside of the tank via the mounting hole on the top for being formed in the tank, yarn is guided to institute
State the inside of tank；And
Thread tube guide rail keeps the thread tube, and can move along lifting direction,
The thread tube is kept via thread tube holder and by the thread tube guide rail,
The retentivity of the thread tube holder, less than because for by the winder formed due to having wound yarn on the thread tube
Divide the resistance that the thread tube is applied to non-lift component contact.
2. centrifugal spinning frame according to claim 1, which is characterized in that
By the frictional force generated between the thread tube and the thread tube holder, described in the thread tube guide rail holding
Thread tube.
3. centrifugal spinning frame according to claim 1, which is characterized in that
The thread tube has recess portion,
The thread tube holder has the protrusion that can be engaged with the recess portion of the thread tube,
Engaged by the recess portion of the thread tube with the protrusion of the thread tube holder, the thread tube guide rail is protected
Hold the thread tube.
4. centrifugal spinning frame described in any one of claim 1 to 3, which is characterized in that
Have guide tube sensor, the guide tube sensor to the thread tube by the thread tube guide rail keep such case into
Row detection.
5. centrifugal spinning frame according to any one of claims 1 to 4, which is characterized in that
It is provided between the tank and the thread tube of rotation relative to the non-rotary non-rotating portion of the thread tube,
Due to being rolled up on thread tube in the state of having wound yarn on the thread tube, if making institute by the thread tube guide rail
The upward side movement of thread tube is stated, then the yarn for being wound in the thread tube is contacted with non-rotating portion.
6. centrifugal spinning frame according to claim 5, which is characterized in that
The non-rotating portion is the thread tube guiding piece for the cylindrical shape being set between the tank and the thread tube,
The thread tube can movably be contained in the inside of the thread tube guiding piece along the lifting direction,
Flange is formed in the end of the thread tube guiding piece,
In the state of foring winding part because having wound yarn on the thread tube, if passing through the thread tube guide rail
Keep the upward side of the thread tube mobile, then the Hp contacts of the winding part and the thread tube guiding piece.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-062392 | 2018-03-28 | ||
| JP2018062392A JP7035705B2 (en) | 2018-03-28 | 2018-03-28 | Pot spinning machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110318126A true CN110318126A (en) | 2019-10-11 |
| CN110318126B CN110318126B (en) | 2021-12-03 |
Family
ID=65766900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910238267.7A Active CN110318126B (en) | 2018-03-28 | 2019-03-27 | Centrifugal spinning frame |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3546626B1 (en) |
| JP (1) | JP7035705B2 (en) |
| CN (1) | CN110318126B (en) |
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| CN1643194A (en) * | 2002-03-18 | 2005-07-20 | 索若两合股份有限公司 | Centrifugal spinning device |
| CN1952230A (en) * | 2006-10-17 | 2007-04-25 | 沈阳华岳机械有限责任公司 | Automatic centrifugal spinning frame |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110318126B (en) | 2021-12-03 |
| EP3546626B1 (en) | 2024-01-24 |
| EP3546626A1 (en) | 2019-10-02 |
| JP2019173215A (en) | 2019-10-10 |
| JP7035705B2 (en) | 2022-03-15 |
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