Yawn supply package transportation truck

Abstract

To provide a yawn supply package transportation truck capable of positioning all of a plurality of yawn supply packages arranged in line in an axial direction of a peg shaft at a predetermined take-out position in the axial direction of the peg shaft and of restricting a complication of the structure and an increase of a manufacturing cost.SOLUTION: A yawn supply package transportation truck 1 comprises a truck body 21, a peg shaft 22 extending from the truck body 21 in a cantilever state and with a yawn supply package 10 hooked and a positioning part 23 provided at the peg shaft 22. A first position P1 and a second position P2 arranged in line in an axial direction of the peg shaft 22 and with the yawn supply package 10 hooked are provided at the peg shaft 22. The first position P1 is provided as a position at a tip side and the second position P2 is provided at a position at the truck body 21 side in the axial direction of the peg shaft 22. The positioning part 23 is provided so as to be locked with the yawn supply package 10 hooked at the first position P1 and to position the yawn supply package 10 at the first position P1.SELECTED DRAWING: Figure 1

Description

Technical Field

[0003]

[0001] The present invention relates to a yarn supply package transport cart that mounts and transports a yarn supply package supplied to a creel stand.

Background Art

[0002] Conventionally, in the supply of a yarn supply package to a creel stand of a fiber machine such as a false twist processing machine, a yarn supply package extraction device such as a creel robot takes out the yarn supply package from a yarn supply package transport cart that mounts and transports the yarn supply package and supplies it to the creel stand. The yarn supply package transport cart is provided with a plurality of peg shafts that project in a cantilevered manner from the cart body of the yarn supply package transport cart. Each of the plurality of peg shafts is inserted into the bobbin of the yarn supply package, and the yarn supply package is hung on the peg shaft, and the yarn supply package is mounted on the yarn supply package transport cart. A yarn supply package extraction device such as a creel robot takes out the yarn supply package hung on the peg shaft of the yarn supply package transport cart from the peg shaft and supplies it to the creel stand.

[0003] For example, Patent Document 1 discloses a yarn supply package transport cart provided with a peg shaft on which a yarn supply package is hung. In the yarn supply package transport cart of Patent Document 1, the peg shaft has a length such that two yarn supply packages are hung side by side in the axial direction of the peg shaft. Further, a package moving member is provided on this peg shaft so as to be slidable in the axial direction of the peg shaft, and the package moving member moves the yarn supply package along the axial direction of the peg shaft. The package moving member is provided with a bobbin contact portion that contacts the yarn supply package hung on the peg shaft at a portion on the cart body side. Further, the package moving member is provided with a hook portion that is operated when the package moving member is slid in a portion on the tip side of the peg shaft.

[0004] In the yarn package transport trolley of Patent Document 1, when a yarn package is removed from the peg shaft by a yarn package removal device such as a creel robot, of the two yarn packages arranged in the axial direction of the peg shaft, the yarn package attached to the tip of the peg shaft is removed first. The yarn package attached to the peg shaft at the tip of the peg shaft is positioned by contacting the yarn package attached to the peg shaft on the trolley body side. As a result, the yarn package at the tip of the peg shaft, which is positioned in the axial direction of the peg shaft to be removed by a yarn package removal device such as a creel robot, is removed by the creel robot. After the yarn package at the tip of the peg shaft is removed, the yarn package attached to the peg shaft on the trolley body side is slid in the axial direction of the peg shaft by a package moving member. The yarn package that has moved to the tip of the peg shaft is positioned by contacting the bobbin contact portion of the package moving member. As a result, the yarn package moves towards the tip of the peg shaft and is positioned at a predetermined removal position in the axial direction of the peg shaft, where it is removed by a yarn package removal device such as a creel robot. Therefore, two yarn packages mounted side by side in the axial direction of the peg shaft on the yarn package transport trolley can be removed at the same removal position relative to the peg shaft. Thus, a yarn package removal device such as a creel robot can remove two yarn packages mounted side by side on the peg shaft by performing the same operation. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Utility Model Publication No. 4-127764 [Overview of the project] [Problems that the invention aims to solve]

[0006] However, in the yarn package transport trolley of Patent Document 1, a package transport member is required that has a bobbin contact portion and a hook portion and is slidable in the axial direction in order to position both of the two yarn packages at a predetermined removal position. Therefore, the yarn package transport trolley of Patent Document 1 has the problem of having a complicated structure. Furthermore, the yarn package transport trolley of Patent Document 1 has the problem of increased manufacturing costs due to its complicated structure. In addition, the yarn package transport trolley of Patent Document 1 has the problem that it can only transport two yarn packages on one peg shaft.

[0007] The present invention has been made in view of the above problems, and aims to provide a yarn supply package transport trolley that can position any of a plurality of yarn supply packages arranged in the axial direction of the peg shaft at a predetermined extraction position in the axial direction of the peg shaft, thereby suppressing structural complexity and increased manufacturing costs. [Means for solving the problem]

[0008] (1) The yarn supply package transport trolley of the present invention is A yarn supply package transport cart that carries and transports yarn supply packages, A mobile trolley body, A peg shaft is provided so as to extend from the trolley body in a cantilevered manner, and is inserted into the bobbin of the yarn supply package, on which the yarn supply package is hung. The peg shaft is provided with a positioning part, The peg shaft is provided with a first position and a second position, which are aligned along the axial direction of the peg shaft and are positions on which the yarn supply package is hung. The first position is provided as the position on the tip side of the peg shaft in the axial direction, and the second position is provided as the position on the trolley body side in the axial direction. The positioning unit is attached to the peg shaft in a state that does not move in the axial direction between the first position and the second position in the axial direction, and is provided to engage with the yarn supply package hung at the first position to position the yarn supply package at the first position. The positioning portion is provided so as to be able to transition between a protruding state in which it protrudes upward from the peg shaft and can engage with the yarn supply package hung in the first position, and a non-protruding state in which it does not protrude upward from the peg shaft. It is characterized by the following:

[0009] According to the yarn supply package transport trolley described in (1) above, the yarn supply package that is hung on the peg shaft at the first position on the tip side of the peg shaft is positioned by locking it with the positioning unit. This allows it to be positioned in the axial direction of the peg shaft to be removed by a yarn supply package removal device such as a creel robot, and the yarn supply package can be easily removed. In addition, the yarn supply package that is hung on the peg shaft at the second position on the trolley body side can be moved to the first position and locked with the positioning unit after the yarn supply package on the tip side of the peg shaft has been removed. Therefore, the yarn supply package that has been moved from the second position to the first position can also be positioned in the predetermined removal position and can be easily removed. Thus, any of the multiple yarn supply packages lined up in the axial direction of the peg shaft can be positioned in the predetermined removal position in the axial direction of the peg shaft. Consequently, yarn supply packages can be hung at both the first and second positions, and any yarn supply package positioned at the first and second positions can be positioned in the predetermined removal position. Therefore, multiple yarn supply packages can be easily removed. Furthermore, with a simple configuration in which a positioning section is provided between a first position and a second position with respect to the peg axis, any yarn supply package can be positioned at a predetermined removal position. This makes it possible to suppress the complexity of the structure of the yarn supply package transport trolley and the increase in manufacturing costs. Thus, with the yarn supply package transport trolley described in (1) above, any of the multiple yarn supply packages arranged in the axial direction of the peg axis can be positioned at a predetermined removal position in the axial direction of the peg axis, thereby suppressing the complexity of the structure and the increase in manufacturing costs.

[0010] Furthermore, according to the yarn package transport trolley described in (1) above, in the protruding state, the positioning part protrudes upward from the peg shaft, allowing the yarn package to be positioned and hung on the peg shaft at a first position and a second position, respectively. In the non-protruding state, the positioning part does not protrude upward from the peg shaft, allowing the yarn package to be freely moved along the peg shaft between the first position and the second position.

[0011] (2) In the yarn package transport trolley of the present invention, The positioning unit is provided so that it can transition between the protruding state and the non-protruding state, regardless of whether the yarn supply package is placed on the second position or not. It is characterized by the following:

[0012] According to the yarn supply package transport trolley described in (2) above, when the yarn supply package is hung in the second position, the positioning part is set to a non-protruding state, allowing the positioning part to move over the peg axis and the yarn supply package to move freely along the peg axis from the second position to the first position. After moving the yarn supply package to the first position, the positioning part is transitioned to a protruding state, allowing the yarn supply package to be positioned and hung at the first position relative to the peg axis. Furthermore, when the yarn supply package is not hung in the second position, the positioning part is set to a non-protruding state, allowing the positioning part to move over the peg axis and the yarn supply package to move freely along the peg axis from the first position to the second position, allowing the yarn supply package to be hung at the second position relative to the peg axis. Furthermore, when the yarn supply package is not hung in the second position, the positioning part is set to a protruding state, allowing the yarn supply package to be locked to the positioning part and positioned and hung at the first position relative to the peg axis. Therefore, regardless of whether the yarn supply package is attached to the second position or not, the yarn supply package can be positioned and attached to the first position relative to the peg axis.

[0013] (3) In the yarn package transport trolley of the present invention, The positioning unit is rotatably mounted about a rotation axis that extends in a direction perpendicular to the axial direction with respect to the peg shaft, and is provided such that it transitions between the protruding state and the non-protruding state by rotating around the rotation axis. The positioning portion includes a locking portion that can protrude upward from the peg shaft and can lock into the yarn supply package that is hung in the first position, In the protruding state, the locking portion is positioned to protrude upward from the peg shaft, and in the non-protruding state, the locking portion is positioned not to protrude upward from the peg shaft. The positioning portion is in the non-protruding state when no external force is acting on it, and becomes the protruding state when rotation is performed. It is characterized by the following:

[0014] According to the yarn supply package transport trolley described in (3) above, in the protruding state, the locking portion of the positioning part protrudes upward from the peg shaft, allowing the yarn supply package to be positioned and hung on the peg shaft at a first position and a second position, respectively. In the non-protruding state, the locking portion of the positioning part does not protrude upward from the peg shaft, allowing the yarn supply package to be moved freely along the peg shaft between the first position and the second position.

[0015] (4) In the yarn supply package transport trolley of the present invention, The peg shaft is provided with a groove that extends circumferentially around the axis. The positioning portion is provided with a mounting portion that is fitted into the groove so as to be slidable in the circumferential direction and attached to the peg shaft, and a protrusion that extends from the mounting portion. The positioning portion is provided such that the mounting portion slides along the groove and rotates relative to the peg shaft, causing a transition between the protruding state and the non-protruding state. In the aforementioned protruding state, the mounting portion is attached to the peg shaft with the protrusion protruding upward from the peg shaft, and the protrusion engages with the yarn supply package hung in the first position. In the non-protruding state, the mounting portion is attached to the peg shaft in a state where the protrusion does not protrude upward from the peg shaft. It is characterized by the following:

[0016] According to the yarn supply package carrier truck described in (4) above, in the protruding state, since the convex portion of the positioning portion protrudes upward from the peg shaft, the yarn supply package can be positioned and hung at the first position and the second position with respect to the peg shaft, respectively. Further, in the non-protruding state, since the convex portion of the positioning portion does not protrude upward from the peg shaft, the yarn supply package can be freely moved along the peg shaft between the first position and the second position.

[0017] (5) The yarn supply package carrier truck of the present invention is provided such that a plurality of the peg shafts extend from the truck body in a cantilevered manner. This is the gist of the present invention.

[0018] According to the yarn supply package carrier truck described in (5) above, since a plurality of peg shafts are provided so as to extend from the truck body, a plurality of yarn supply packages can be hung on each of the plurality of peg shafts in one truck body, and a large number of yarn supply packages can be mounted on the yarn supply package carrier truck and transported.

[0019] (6) In the yarn supply package carrier truck of the present invention, the second position is provided as a position where one or more of the yarn supply packages are hung. This is the gist of the present invention.

[0020] According to the yarn supply package carrier truck described in (6) above, since one or more yarn supply packages can be hung at the second position, two or more yarn supply packages can be hung on one peg shaft. Therefore, a large number of yarn supply packages can be mounted on the yarn supply package carrier truck and transported.

[0021] (7) In the yarn supply package carrier truck of the present invention, the peg shaft is provided so as to extend from the truck body in a cantilevered manner obliquely upward. This is the gist of the present invention.

[0022] According to the yarn package transport trolley described in (7) above, since the peg shaft extends diagonally upward from the trolley body, even if an external force acts on the yarn package transport trolley and vibration occurs, it is possible to more reliably prevent the yarn packages hanging on the peg shaft from falling. In addition, the yarn package hung at the first position is biased toward the trolley body side along the axial direction of the peg shaft by gravity and is locked into the positioning part. Therefore, the yarn package hung on the peg shaft at the first position on the tip side of the peg shaft can be securely locked into the positioning part and positioned in a stable state. Note that if the peg shaft protrudes upward, the yarn package hung on the peg shaft will be supported in a stable state relative to the peg shaft by its own weight. However, if a positioning part is not provided on the peg shaft, multiple yarn packages hung on the peg shaft will come into contact with each other, and the weight of the yarn package at the tip side of the peg shaft will make it difficult to remove the yarn package at the tip side. However, according to the yarn package transport trolley described in (7) above, the peg shaft extends upward and is provided with a positioning part that locks into the yarn package hung at the first position. As a result, the yarn package hung on the peg shaft at the first position does not come into contact with the yarn package hung on the peg shaft at the second position, so that the yarn package hung on the peg shaft at the first position on the tip side can be easily removed.

[0023] (8) In the yarn supply package transport trolley of the present invention, The creel robot carries and transports the aforementioned yarn supply package, which is removed by the creel robot and supplied to the creel stand. It is characterized by the following:

[0024] According to the yarn supply package transport trolley described in (8) above, the yarn supply package that is positioned by being hung on the peg shaft at the first position on the tip side of the peg shaft and locked to the positioning unit is removed by the creel robot. That is, the first position becomes the predetermined removal position when the creel robot removes the yarn supply package from the peg shaft. Then, the yarn supply package that is hung on the peg shaft at the second position on the trolley body side can be moved to the first position and locked to the positioning unit after the yarn supply package on the tip side of the peg shaft has been removed. Therefore, the yarn supply package that has been moved from the second position to the first position can also be positioned at the predetermined removal position, and the creel robot can easily remove it. Thus, any of the multiple yarn supply packages lined up in the axial direction of the peg shaft can be positioned at the predetermined removal position when the creel robot removes them in the axial direction of the peg shaft. Furthermore, there is no need to provide special equipment to the creel robot for the removal of yarn supply packages by the creel robot, and a structure can be realized that makes it easy for the creel robot to remove multiple yarn supply packages.

[0025] It should be noted that the yarn supply package transport trolley of the present invention does not necessarily have to include all of the configurations described in (1) to (8) above. For example, in the invention of the yarn supply package transport trolley described in (1) above, the configurations described in (2) to (8) above are not essential. Furthermore, the yarn supply package transport trolley of the present invention can be made by arbitrarily combining the configuration described in (1) above with some of the configurations described in (2) to (8) above, to the extent that compatibility can be maintained. For example, the yarn supply package transport trolley of the present invention can be made by combining the configuration described in (1) above with some or all of the configurations described in (2), (3), (5) to (8) above. Furthermore, the yarn supply package transport trolley of the present invention can be made by combining the configuration described in (1) above with some or all of the configurations described in (2), (4) to (8) above. [Effects of the Invention]

[0026] According to the present invention, a yarn supply package transport trolley can be provided that allows any of the multiple yarn supply packages arranged in the axial direction of the peg shaft to be positioned at a predetermined extraction position in the axial direction of the peg shaft, thereby suppressing structural complexity and increased manufacturing costs. [Brief explanation of the drawing]

[0027] [Figure 1] A perspective view showing a yarn package transport trolley according to one embodiment of the present invention. [Figure 2] This is a perspective view of a yarn supply package transport cart, showing the cart loaded with multiple yarn supply packages. [Figure 3] This is a schematic plan view showing the layout configuration of a false twisting machine with a creel stand installed. [Figure 4] This is a side view of a creel robot. [Figure 5] This is a perspective view showing a yarn supply package suspended on the peg shaft of a yarn supply package transport cart, with a magnified view of a portion of the peg shaft and the yarn supply package. [Figure 6] This is a magnified view of a portion of Figure 5. [Figure 7] This is a side view of a yarn supply package transport trolley, partially showing a state in which multiple yarn supply packages are arranged in a tower. [Figure 8] This is a side view of a yarn supply package transport trolley, partially showing a state in which multiple yarn supply packages are stacked on top of each other, with multiple yarn supply packages hanging on the second position of the peg axis of the yarn supply package transport trolley. [Figure 9] This is a diagram illustrating the positioning part provided on the peg shaft. [Figure 10] This diagram illustrates the operation of the positioning mechanism when the yarn supply package, which is attached to the peg shaft, moves from the second position to the first position on the peg shaft. [Figure 11]This diagram illustrates a modified yarn supply package transport cart, and shows an enlarged view of the peg shaft and positioning section of the modified yarn supply package transport cart. [Figure 12] This is a diagram showing a magnified portion of Figure 11. [Modes for carrying out the invention]

[0028] The embodiments for carrying out the present invention will be described below with reference to the drawings. Furthermore, the present invention can be widely applied to various uses as a yarn supply package transport cart for carrying and transporting yarn supply packages.

[0029] Figure 1 is a perspective view showing a yarn supply package transport cart 1 according to one embodiment of the present invention. Figure 2 is a perspective view of the yarn supply package transport cart 1, showing the yarn supply package transport cart 1 with multiple yarn supply packages 10 mounted on it. Figure 3 is a schematic plan view showing the arrangement of a false twisting machine 11 on which a creel stand 13 is installed. Figure 4 is a side view of a creel robot 15.

[0030] The yarn supply package transport trolley 1 is configured as a trolley for carrying and transporting yarn supply packages 10 that are supplied to the creel stand 13 of the false twisting machine 11, as shown in Figure 3. The yarn supply packages 10 loaded on the yarn supply package transport trolley 1 are then removed by a yarn supply package removal device, such as the creel robot 15 of the false twisting machine 11, as shown in Figures 3 and 4, and supplied to the creel stand 13. Referring to Figures 1 and 2, the yarn supply package 10 is composed of yarn 10b wound around a cylindrical bobbin 10a.

[0031] Referring to Figure 3, in the false twisting machine 11, the machine base 12 extends in the longitudinal direction, and numerous yarn processing spindles, each equipped with yarn processing mechanisms (not shown) such as yarn supply rollers, heating heaters, twisting devices, and winding devices, are arranged on both sides of the machine base 12. Raw yarn is supplied to the machine base 12 of the false twisting machine 11 from the creel stand 13. The creel stand 13 is located adjacent to the machine base 12 and is configured as a mechanism that supplies yarn supply packages 10 by the creel robot 15 and supplies the yarn unwound from the supplied yarn supply packages 10 to the machine base 12.

[0032] Referring to Figures 3 and 4, the creel robot 15 is configured as a mechanism that removes the yarn supply packages 10, which have been transported by the yarn supply package transport trolley 1, from the yarn supply package transport trolley 1 and supplies them to the creel stand 13. The creel robot 15 is configured to move along a rail 14 laid adjacent to the creel stand 13 and supply the yarn supply packages 10 to the creel stand 13. The creel robot 15 is also configured to remove the yarn supply packages 10 from the yarn supply package transport trolley 1 at a predetermined position at the end of the rail 14. When the creel robot 15 removes the yarn supply packages 10 from the yarn supply package transport trolley 1, the yarn supply package transport trolley 1, which is carrying the yarn supply packages 10, is moved to a predetermined trolley stopping position S shown by a dashed line in Figure 3, and stops at the trolley stopping position S. The trolley stopping position S is set as the position where the creel robot 15, positioned at a predetermined position on the rail 14, performs the operation of removing the yarn supply packages 10 from the yarn supply package transport trolley 1. Furthermore, when the yarn supply package transport trolley 1 is moved to the trolley stop position S, it is first moved in a direction approximately perpendicular to the longitudinal direction of the machine base 12 of the false twisting machine 11, as shown by arrow X1 in Figure 3, to a position close to the creel stand 13 and the creel robot 15. Then, after moving to a position close to the creel stand 13 and the creel robot 15, it is moved to the trolley stop position S, as shown by arrow X2 in Figure 3. The creel robot 15 then performs the task of removing the yarn supply package 10 from the yarn supply package transport trolley 1 that has stopped at the trolley stop position S.

[0033] Referring to Figure 4, the creel robot 15 is equipped with a trolley 16 that travels on the rail 14 and has drive wheels 16a that roll on the rail 14, a yarn supply exchange device 17 that is mounted on the trolley 16 so as to be able to move up and down, a lifting device 18 for raising and lowering the yarn supply exchange device 17, and the like. The yarn supply exchange device 17 is configured as a device that takes out the yarn supply package 10 from the yarn supply package transport trolley 1 and supplies the yarn supply package 10 to the creel stand 13. The yarn supply exchange device 17 is equipped with a package holding part 17a, a first support part 17b, a second support part 17c, and the like. The package holding part 17a is provided as a mechanism to hold the yarn supply package 10 when taking out the yarn supply package 10 from the yarn supply package transport trolley 1, and is equipped with a pair of yarn supply package holding members 17d that directly hold the yarn supply package 10. The pair of yarn supply package holding members 17d are provided as a pair of rod-shaped members that extend in a cantilever shape along the horizontal direction and extend parallel to each other. The yarn supply package holding section 17a is configured to hold the yarn supply package 10 by inserting a pair of yarn supply package holding members 17d into the bobbin 10a of the yarn supply package 10. The first support section 17b is supported by a lifting device 18 and is provided to move along the vertical direction when driven by the lifting device 18. The first support section 17b is also provided with a guide member 17e that supports the package holding section 17a so that it can slide along the horizontal direction. The second support section 17c is provided so as to be movable along the horizontal direction relative to the first support section 17b. The second support section 17c supports the package holding section 17a in a suspended state. The second support section 17c is configured to move along the horizontal direction relative to the first support section 17b, thereby sliding the suspended package holding section 17a relative to the guide member 17e of the second support section 17b and moving it horizontally.

[0034] The creel robot 15 extends a pair of yarn package holding members 17d of the package holding section 17a of the yarn exchange device 17 into the bobbin 10a of the yarn package 10 mounted on the yarn package transport trolley 1. The creel robot 15 then raises the yarn exchange device 17 to lift the yarn package 10 with the pair of yarn package holding members 17d, and then retracts the pair of yarn package holding members 17d to remove the yarn package 10. The creel robot 15 is configured to be able to remove the yarn package 10 because the pair of yarn package holding members 17d of the package holding section 17a are provided as a pair of rod-shaped members.

[0035] Next, the yarn supply package transport trolley 1 according to an embodiment of the present invention will be described in detail. Referring to Figures 1 and 2, the yarn supply package transport trolley 1 is configured to include a trolley body 21, a plurality of peg shafts 22, and positioning parts 23 provided on each of the plurality of peg shafts 22.

[0036] The trolley body 21 is composed of a base portion 24, a pair of upper and lower frames 25, a plurality of horizontal frames 26, and a plurality of wheels 27. The base portion 24 is provided as a base that constitutes the foundation structure of the trolley body 21. In this embodiment, the base portion 24 is provided as a frame having a substantially rectangular outer shape. The base portion 24 does not have to be provided as a frame; for example, it may be provided in the shape of a plate. The base portion 24 is also provided with positioning holes (not shown) that open on its lower surface. The positioning holes are provided to position the yarn supply package transport trolley 1 at a predetermined position at the trolley stop position S when the trolley transport trolley 1 stops at the aforementioned trolley stop position S. The trolley stop position S is provided with positioning pins that engage with the positioning holes provided in the base portion 24. Then, with the yarn supply package transport trolley 1 stopped at the trolley stop position S, the positioning hole of the base portion 24 is engaged with the positioning pin at the trolley stop position S, thereby positioning the yarn supply package transport trolley 1 at a predetermined position at the trolley stop position S.

[0037] The pair of upper and lower frames 25 are provided as columnar frame portions that project upward from the base portion 24 and extend in the vertical direction. In this embodiment, the upper and lower frames 25 are shown as examples of a rectangular prism shape. The pair of upper and lower frames 25 are provided so as to project upward from the base portion 24 at both ends in the longitudinal direction of the base portion which has a substantially rectangular outer shape. Furthermore, the pair of upper and lower frames 25 are provided so as to extend parallel to each other along the vertical direction.

[0038] Each of the multiple horizontal frames 26 is provided as a rectangular prism-shaped member extending horizontally by connecting a pair of upper and lower frames 25. That is, each horizontal frame 26 is provided so as to extend horizontally while being spanned between the pair of upper and lower frames 25. One end of the horizontal frame 26 in the longitudinal direction is fixed to one of the pair of upper and lower frames 25, and the other end of the horizontal frame 26 in the longitudinal direction is fixed to the other of the pair of upper and lower frames 25. Furthermore, the multiple horizontal frames 26 are arranged side by side in the vertical direction between the pair of upper and lower frames 25 and are provided so as to extend parallel to each other. That is, each of the multiple horizontal frames 26 is connected to the upper and lower frames 25 at different positions in the vertical direction. In this embodiment, a configuration in which three horizontal frames 26 are provided is illustrated. Therefore, in this embodiment, the horizontal frames 26 are arranged at three different height positions along the vertical direction: upper, middle, and lower.

[0039] Multiple wheels 27 are provided on the lower part of the base 24 and are rotatably mounted on the base 24 around a rotation axis (not shown). The presence of the wheels 27 allows the trolley body 21 to move. When the yarn supply package transport trolley 1 is moved, for example, an operator (not shown) pushes the trolley body 21, causing the multiple wheels 27 on the lower part of the base 24 to rotate and the yarn supply package transport trolley 1 to move.

[0040] Figure 5 is a perspective view showing the state in which the yarn supply packages 10 are hung on the peg shaft 22 of the yarn supply package transport trolley 1, with a magnified view of a part of the peg shaft 22 and the yarn supply packages 10. Figure 6 is a magnified view of a part of Figure 5. Figure 7 is a side view of the yarn supply package transport trolley 1, partially showing the state in which multiple yarn supply packages 10 are loaded.

[0041] Referring to Figures 1, 2, and 5-7, the peg shaft 22 is provided to extend cantilevered from the trolley body 21 and is provided as an axial member that is inserted into the bobbin 10a of the yarn supply package 10 and on which the yarn supply package 10 is hung. The peg shaft 22 is provided as, for example, an axial member that extends long and slender with a circular cross-section, and the axial direction of the peg shaft 22 is the direction in which the peg shaft 22 extends from the trolley body 21. In the yarn supply package transport trolley 1, multiple peg shafts 22 are provided, and multiple peg shafts 22 extend from the trolley body 21. In addition, each of the multiple peg shafts 22 extends from a horizontal frame 26 on the trolley body 21. In this embodiment, multiple peg shafts 22 extend from each of the three horizontal frames 26 that are arranged vertically.

[0042] Multiple peg shafts 22 are arranged in a line along the direction in which the horizontal frame 26 extends horizontally, and extend parallel to each other from the horizontal frame 26. In addition, multiple peg shafts 22 extend from the horizontal frame 26 toward both sides in the horizontal direction, centered on the direction in which the horizontal frame 26 extends horizontally. Furthermore, each peg shaft 22 extends diagonally upward from the horizontal frame 26 of the trolley body 21. More specifically, each peg shaft 22 extends diagonally upward from the horizontal frame 26 along a direction approximately perpendicular to the direction in which the horizontal frame 26 extends.

[0043] Furthermore, the peg shafts 22 are configured to hold the yarn supply package 10 by simultaneously hanging the yarn supply package 10 on the two peg shafts 22. The two peg shafts 22 on which the yarn supply package 10 is simultaneously hung extend parallel to each other from the horizontal frame 26, close together. When the yarn supply package 10 is removed from the yarn supply package transport trolley 1 by the creel robot 15, the yarn supply package 10, which is hung on the two peg shafts 22, is removed by the yarn supply exchange device 17 of the creel robot 15. At this time, a pair of yarn supply package holding members 17d of the package holding section 17a of the yarn supply exchange device 17 of the creel robot 15 are inserted into the bobbin 10a of the yarn supply package 10 so as to be inserted between the two peg shafts 22. Then, the creel robot 15 operates, causing a pair of yarn package holding members 17d inserted between the two peg shafts 22 within the bobbin 10a to rise, thereby lifting the yarn package 10 from the two peg shafts 22 by the pair of yarn package holding members 17d. Next, the creel robot 15 operates, causing the pair of yarn package holding members 17d in the package holding section 17a to retract, and the yarn package 10, supported by the pair of yarn package holding members 17d, is removed from the two peg shafts 22. The two peg shafts 22 on which the yarn package 10 is simultaneously hung are positioned with a gap between them smaller than the inner diameter of the bobbin 10a so that they can both be inserted into the bobbin 10a of the yarn package 10. Furthermore, the distance between the two peg shafts 22 is set to be greater than the width dimension of the area where the pair of parallel yarn package holding members 17d are positioned, so that the pair of yarn package holding members 17d are inserted between the two peg shafts 22.

[0044] Furthermore, referring to Figures 1 and 7, the peg shaft 22 is provided with a first position P1 and a second position P2, which are aligned along the axial direction of the peg shaft 22 and are positions on which the yarn supply package 10 is hung. The first position P1 is provided as the position on the tip side of the peg shaft 22 in the axial direction of the peg shaft 22. That is, the first position P1 is provided as the position on the tip side of the peg shaft 22 that cantileveres from the trolley body 21. The second position P2 is provided as the position on the trolley body 21 side in the axial direction of the peg shaft 22. That is, the second position P2 is provided as the position on the base side of the peg shaft 22 that cantileveres from the trolley body 21.

[0045] Furthermore, the first position P1 is provided as a position on the tip side of the peg shaft 22 where one yarn supply package 10 can be hung. The first position P1 is configured as a predetermined removal position by the creel robot 15 when the creel robot 15 removes the yarn supply package 10. The second position P2 is provided as a position on the trolley body 21 side in the axial direction of the peg shaft 22 where one or more yarn supply packages 10 can be hung. Figures 1, 2, and 7 illustrate a state where one yarn supply package 10 is hung at the first position P1 and one yarn supply package 10 is hung at the second position P2. Figures 5 and 6 illustrate a state where one yarn supply package 10 is hung at the first position P1 and no yarn supply package 10 is hung at the second position P2.

[0046] Although Figures 1, 2, and 7 illustrate a configuration in which one yarn supply package 10 is attached at the second position P2, it is also possible to implement a configuration in which multiple yarn supply packages 10 are attached at the second position P2.

[0047] Figure 8 is a partial side view of the yarn package transport trolley 1 showing the state in which multiple yarn packages 10 are mounted, with multiple yarn packages 10 hanging on the second position P2 of the peg shaft 22 of the yarn package transport trolley 1. In the configuration shown in Figure 8, the second position P2 of the peg shaft 22 is provided as a position on the trolley body 21 side in the axial direction of the peg shaft 22 where multiple yarn packages 10 can be hung. As shown in Figure 8, when multiple yarn packages 10 are hung at the second position P2, the axial length of the peg shaft 22 is set to be longer according to the number of yarn packages 10 that are hung at the second position P2. Then, at the second position P2, the multiple yarn packages 10 are hung in a line along the axial direction of the peg shaft 22. Note that Figure 8 illustrates a configuration in which two yarn packages 10 are hung at the second position P2 of the peg shaft 22. The configuration in which multiple yarn supply packages 10 are attached to the second position P2 of the peg shaft 22 is not limited to a configuration in which two yarn supply packages 10 are attached, but may also be implemented in which three or more yarn supply packages 10 are attached.

[0048] Referring to Figures 1, 5 to 8, the positioning part 23 is provided on the peg shaft 22 and is provided as a member for positioning the yarn supply package 10, which is hung at the first position P1, at the first position P1. The positioning part 23 is provided on each of the multiple peg shafts 22, with one positioning part 23 provided on each peg shaft 22. The positioning part 23 is attached to the peg shaft 22 in a state where it does not move in the axial direction of the peg shaft 22 between the first position P1 and the second position P2 in the axial direction of the peg shaft 22. The positioning part 23 is provided to engage with the yarn supply package 10, which is hung at the first position P1, between the first position P1 and the second position P2 in the axial direction of the peg shaft 22, and to position the yarn supply package 10 at the first position P1. Furthermore, the positioning unit 23 is provided so that it can transition between a protruding state in which it protrudes upward from the peg shaft 22 and can engage with the yarn supply package 10 that is hung at the first position P1, and a non-protruding state in which it does not protrude upward from the peg shaft 22. In addition, the positioning unit 23 is provided so that it can transition between the protruding state and the non-protruding state in both the state in which the yarn supply package 10 is hung at the second position P2 and the state in which it is not.

[0049] Referring to Figures 5 to 8, the positioning unit 23 is rotatably mounted on the peg shaft 22. A rotating shaft 28 is attached to the peg shaft 22, passing through the peg shaft 22 in a direction perpendicular to the axial direction of the peg shaft 22, and the positioning unit 23 is rotatably mounted on the rotating shaft 28. Thus, the positioning unit 23 is rotatably mounted on the peg shaft 22 around the rotating shaft 28, which extends in a direction perpendicular to the axial direction of the peg shaft 22. The positioning unit 23 is designed to transition between a protruding state, where it protrudes upward from the peg shaft 22, and a non-protruding state, where it does not protrude upward from the peg shaft 22, by rotating around the rotating shaft 28. In addition, the peg shaft 22 is provided with a recess 22a (see Figure 6) where a part of the outer peripheral surface is cut out at the location where the positioning unit 23 is provided. The positioning part 23, which is rotatably attached to the peg shaft 22, is attached to the peg shaft 22 in a state where it can rotate within the region inside the recess 22a. The region on the peg shaft 22 in which the positioning part 23 is provided in a rotatable state is not limited to the form of the recess 22a, but may take other forms. For example, a region formed as a slit through the peg shaft 22 may be provided, and the positioning part 23 may be rotatably attached within this slit-shaped through region.

[0050] Figure 9 is a diagram illustrating the positioning part 23 provided on the peg shaft 22. Note that Figure 9 shows an enlarged view of the positioning part 23 and a part of the peg shaft 22. Also, Figure 9(A) shows the state in which the yarn supply package 10 is not attached to the peg shaft 22. Figure 9(B) shows the state in which the yarn supply package 10, which is attached to the peg shaft 22 at the second position P2, slides from the second position P2 to the first position P1 in the axial direction of the peg shaft 22. Figure 9(C) shows the state in which the yarn supply package 10 attached to the peg shaft 22 has moved from the second position P2 to the first position P1. Referring to Figures 5 to 9, the positioning part 23, which is rotatably attached to the peg shaft 22, is configured to include a locking part 23a, a weight part 23b, and a contact part 23c.

[0051] The locking portion 23a is provided in the positioning portion 23 as a portion that can be positioned above the rotation axis 28. Furthermore, the locking portion 23a is provided as a portion that can protrude upward from the peg shaft 22 and is provided as a portion that can lock with the yarn supply package 10 which is hung on the peg shaft 22 at a first position P1. In addition, when no external force is acting on the positioning portion 23 which is rotatably attached to the peg shaft 22, the locking portion 23a is located inside the recess 22a of the peg shaft 22. Therefore, when no external force is acting on the positioning portion 23, the locking portion 23a does not protrude upward from the recess 22a, and the positioning portion 23 does not protrude upward from the recess 22a. In this state, that is, when the positioning portion 23 does not protrude upward from the recess 22a, the positioning portion 23 is in a non-protruding state where it does not protrude upward from the peg shaft 22. In the non-protruding state, the locking portion 23a does not protrude upward from the recess 22a, and the locking portion 23a is positioned so as not to protrude upward from the peg shaft 22. Because the positioning portion 23 is in the non-protruding state, when sliding the yarn supply package 10, which is attached to the peg shaft 22 at the tip end of the peg shaft 22, from the tip end of the peg shaft 22 to the second position P2 in the axial direction of the peg shaft 22, the yarn supply package 10 can be slid along the peg shaft 22 without the bobbin 10a of the yarn supply package 10 coming into contact with the positioning portion 23. Similarly, when sliding the yarn supply package 10, which is attached to the peg shaft 22 at the second position P2, from the second position P2 to the first position P1 in the axial direction of the peg shaft 22, the yarn supply package 10 can be slid along the peg shaft 22 to the first position P1 without the bobbin 10a of the yarn supply package 10 coming into contact with the positioning portion 23. Therefore, when the positioning part 23 is in a non-protruding state, the positioning part 23 does not protrude upward from the peg shaft 22, allowing the yarn supply package 10 to move freely along the peg shaft 22 between the first position P1 and the second position P2.

[0052] The weight portion 23b is provided in the positioning portion 23 as a part positioned below the rotation axis 28. The weight portion 23b is provided as a part that is heavier than the locking portion 23a. Therefore, as shown in Figure 9(A), the positioning portion 23, which is rotatably mounted on the peg shaft 22 around the rotation axis 28, maintains a stable posture with the weight portion 23b positioned below when no external force is acting on it. In this state, the locking portion 23a is positioned inside the recess 22a of the peg shaft 22 and is hidden within the recess 22a, and does not protrude above the recess 22a of the peg shaft 22. In other words, when no external force is acting on it, the positioning portion 23 does not protrude above the recess 22a, and the positioning portion 23 is in a non-protruding state where it does not protrude above the peg shaft 22. On the other hand, when an operator manually manipulates the weight portion 23b and rotates the positioning portion 23 around the rotation axis 28, the locking portion 23a protrudes from the recess 22a and protrudes upward toward the peg shaft 22. By protruding upward toward the peg shaft 22, the locking portion 23a becomes capable of locking onto the yarn supply package 10 which is hung on the peg shaft 22 at the first position P1. In this state, that is, when the positioning portion 23 protrudes upward toward the recess 22a, the positioning portion 23 is in a protruding state that protrudes upward toward the peg shaft 22 and is capable of locking onto the yarn supply package 10 which is hung at the first position P1. In the protruding state, the locking portion 23a protrudes upward toward the recess 22a and is positioned to protrude upward toward the peg shaft 22. When the positioning part 23 is in the protruding state, the positioning part 23 protrudes upward from the peg shaft 22, allowing the yarn supply package 10 to be positioned and hung on the peg shaft 22 at the first position P1 and the second position P2, respectively.

[0053] The contact portion 23c is provided at the lower end of the positioning portion 23 as a portion that protrudes from the weight portion 23b, and is provided as a portion that can come into contact with the outer peripheral surface of the lower half of the peg shaft 22. More specifically, as shown in Figure 9(C), the contact portion 23c is configured to come into contact with the outer peripheral surface of the lower half of the peg shaft 22 when the operator operates the weight portion 23b to make the locking portion 23a protrude upward from the peg shaft 22, and the yarn supply package 10, which is hung on the peg shaft 22 at the first position P1, locks with the locking portion 23a. When the contact portion 23c is in contact with the outer peripheral surface of the lower half of the peg shaft 22, the rotation of the positioning portion 23 is restricted by the outer circumference of the peg shaft 22. Therefore, even if the yarn supply package 10, which is hooked onto the first position P1 and locked to the locking part 23a, attempts to slide to the second position P2, the positioning part 23 does not rotate, the state in which the yarn supply package 10 is locked to the locking part 23a is maintained, and the sliding movement of the yarn supply package 10 toward the second position P2 is restricted.

[0054] As shown in Figure 9(A), the positioning portion 23, which is provided with the locking portion 23a, weight portion 23b, and contact portion 23c described above, has the locking portion 23a positioned inside the recess 22a and hidden within the recess 22a when no external force is acting on it, so the positioning portion 23 does not protrude upward toward the peg shaft 22. In other words, the positioning portion 23 is in a non-protruding state, not protruding upward toward the peg shaft 22. Therefore, when sliding the yarn supply package 10 from the tip side of the peg shaft 22 to the second position P2, and when sliding the yarn supply package 10 from the second position P2 to the first position P1, the bobbin 10a of the yarn supply package 10 and the positioning portion 23 do not come into contact, and the yarn supply package 10 can be slid in the axial direction of the peg shaft 22. Figure 9(B) shows the state when the yarn supply package 10, which is placed at the second position P2, slides from the second position P2 to the first position P1 in the axial direction of the peg shaft 22. When the yarn supply package 10 slides, the locking portion 23a is located within the recess 22a and does not protrude upward, so the bobbin 10a does not come into contact with the positioning portion 23, and the yarn supply package 10 slides in the axial direction of the peg shaft 22. In this way, the positioning portion 23 is configured to allow the yarn supply package 10 to slide when it slides from the second position P2 to the first position P1 in the axial direction of the peg shaft 22.

[0055] Furthermore, when the yarn supply package 10 moves from the second position P2 to the first position P1 and passes over the positioning unit 23, the positioning unit 23 is rotated around the rotation axis 28 in a counterclockwise direction as shown in Figure 9(A) by the operator's hand-operated weight portion 23b. When this rotation is performed, the locking portion 23a protrudes from the recess 22a, and the positioning unit 23 protrudes upward from the peg shaft 22. That is, the positioning unit 23 is in a protruding state that protrudes upward from the peg shaft 22 and can lock into the yarn supply package 10 which is hung at the first position P1. In this state, when the yarn supply package 10 is hung on the peg shaft 22 at the first position P1, the positioning unit 23 locks into the end of the bobbin 10a of the yarn supply package 10 at the locking portion 23a, as shown in Figure 9(C). When the bobbin 10a of the yarn supply package 10 is locked to the locking portion 23a, the contact portion 23c contacts the outer peripheral surface of the lower half of the peg shaft 22, restricting the rotation of the positioning portion 23 in the counterclockwise direction as shown in Figure 9(C). As a result, even if the yarn supply package 10, which is placed at the first position P1, attempts to slide to the second position P2, the positioning portion 23 does not rotate, and the state in which the yarn supply package 10 is locked to the locking portion 23a is maintained. Therefore, the sliding movement of the yarn supply package 10 toward the second position P2 is restricted. In this way, the positioning portion 23 is provided so as to be able to lock to the yarn supply package 10 and restrict the sliding movement of the yarn supply package 10 when the yarn supply package 10 moves from the first position P1 to the second position P2.

[0056] Next, the usage of the yarn supply package transport trolley 1 described above will be explained. When yarn supply packages 10 are supplied to the creel stand 13, multiple yarn supply packages 10 are loaded onto the yarn supply package transport trolley 1 and transported. The yarn supply packages 10 are loaded onto the yarn supply package transport trolley 1 by being hung on the peg shaft 22 of the yarn supply package transport trolley 1. The work of hanging the yarn supply packages 10 on the peg shaft 22 is performed by an operator. The operator hangs the yarn supply packages 10 on the peg shaft 22 with the peg shaft 22 inserted into the bobbin 10a of the yarn supply package 10. In addition, the yarn supply packages 10 are hung on the peg shaft 22 at the first position P1 and the second position P2, respectively.

[0057] First, the yarn supply package 10 is placed on the peg shaft 22 at the second position P2, and then at the first position P1. When the yarn supply package 10 is placed at the second position P2, with the bobbin 10a inserted into the peg shaft 22, the yarn supply package 10 is slid from the tip side of the peg shaft 22 to the second position P2. At this time, since the positioning part 23 is in a non-protruding state and does not protrude above the peg shaft 22, the yarn supply package 10 slides in the axial direction of the peg shaft 22 to the second position P2 without contacting the positioning part 23 and is placed on the peg shaft 22 at the second position P2. Next, when the yarn supply package 10 is placed at the first position P1, with the bobbin 10a inserted into the peg shaft 22, the yarn supply package 10 is slid from the tip side of the peg shaft 22 to a position near the first position P1. When the yarn supply package 10 moves to a position near the first position P1, the positioning unit 23 is rotated. This causes the positioning unit 23 to transition from a non-protruding state to a protruding state, where the positioning unit 23 protrudes upward from the peg shaft 22. In this state, the yarn supply package 10 is moved to the first position P1, and the locking portion 23a of the positioning unit 23 comes into contact with the bobbin 10a of the yarn supply package 10. As a result, the yarn supply package 10, which is hung on the peg shaft 22 at the first position P1, is locked to the positioning unit 23 and positioned at the first position P1.

[0058] When multiple yarn supply packages 10 are loaded onto the yarn supply package transport cart 1, the yarn supply package transport cart 1 is moved to the cart stop position S, which is the area where the creel robot 15 performs the operation of removing the yarn supply packages 10 from the yarn supply package transport cart 1. The movement of the yarn supply package transport cart 1 is performed by an operator pushing the cart body 21 to move the yarn supply package transport cart 1. When the yarn supply package transport cart 1 loaded with yarn supply packages 10 moves to the cart stop position S and stops, the creel robot 15 operates to remove the yarn supply packages 10 from the yarn supply package transport cart 1.

[0059] When the creel robot 15 removes the yarn supply package 10 from the yarn supply package transport trolley 1, the yarn supply package 10, which is hung on the peg shaft 22 at the first position P1, is removed by the yarn supply exchange device 17 of the creel robot 15. At this time, a pair of yarn supply package holding members 17d of the package holding section 17a of the yarn supply exchange device 17 of the creel robot 15 are inserted into the bobbin 10a of the yarn supply package 10, which is hung on the peg shaft 22 at the first position P1, so as to be inserted between the two peg shafts 22. Then, due to the operation of the creel robot 15, the pair of yarn supply package holding members 17d inserted between the two peg shafts 22 inside the bobbin 10a of the yarn supply package 10, which is hung at the first position P1, rise. As the pair of yarn supply package holding members 17d rise, the yarn supply package 10, which is hung on the peg shaft 22 at the first position P1, is lifted off the peg shaft 22. Next, the creel robot 15 operates, causing the pair of yarn supply package holding members 17d of the package holding section 17a to retract, and the yarn supply package 10, which has been lifted from the first position P1 of the peg shaft 22 and supported by the pair of yarn supply package holding members 17d, is removed from the peg shaft 22.

[0060] The operation of removing the yarn supply package 10 from the yarn supply package transport trolley 1 by the creel robot 15 is performed only for yarn supply packages 10 that are hung on the peg shaft 22 at a first position P1. When removing a yarn supply package 10 that is hung on the peg shaft 22 at a second position P2 from the yarn supply package transport trolley 1, the yarn supply package 10 that is hung at the second position P2 is moved to the first position P1 before the yarn supply package 10 is removed. The operation of moving the yarn supply package 10 from the second position P2 to the first position P1 is performed by an operator sliding the yarn supply package 10 that is hung at the second position P2 in the axial direction of the peg shaft 22.

[0061] Figure 10 illustrates the operation of the positioning unit 23 when the yarn supply package 10, which is hung on the peg shaft 22, moves from the second position P2 to the first position P1 of the peg shaft 22. Figure 10 shows enlarged views of the positioning unit 23, a part of the peg shaft 22, and a part of the yarn supply package 10. Figure 10(A) shows the state in which the yarn supply package 10 is in the process of moving from the second position P2 to the first position P1 of the peg shaft 22. Figure 10(B) shows the state in which the yarn supply package 10 has moved from the second position P2 to the first position P1.

[0062] When moving the yarn supply package 10 from the second position P2 to the first position P1, the operator slides the yarn supply package 10, which is hanging at the second position P2, toward the first position P1 in the axial direction of the peg shaft 22. At this time, the yarn supply package 10 is not hanging at the first position P1, and no external force is acting on the positioning part 23, so the positioning part 23 is in a non-protruding state and does not protrude above the peg shaft 22. In this state, as the yarn supply package 10 hanging at the second position P2 slides toward the first position P1, the yarn supply package 10 slides toward the axial direction of the peg shaft 22 without coming into contact with the positioning part 23, as shown in Figure 10(A).

[0063] When the yarn supply package 10 slides from the second position P2 to the first position P1 and passes over the positioning unit 23, the positioning unit 23 is rotated. This causes the positioning unit 23 to transition from a non-protruding state to a protruding state where the positioning unit 23 protrudes upward from the peg shaft 22. In this state, the yarn supply package 10 is moved to the first position P1, and as shown in Figure 10(B), the end of the bobbin 10a of the yarn supply package 10, which is now hanging at the first position P1, locks into the locking unit 23a. Furthermore, when the bobbin 10a of the yarn supply package 10 and the locking unit 23a are locked together, the contact unit 23c contacts the outer circumferential surface of the lower half of the peg shaft 22, restricting the rotation of the positioning unit 23. As a result, even if the yarn supply package 10, which is hung at the first position P1, attempts to slide to the second position P2, the yarn supply package 10 is locked to the locking part 23a and remains hung at the first position P1. Therefore, the yarn supply package 10, which has been slid from the second position P2 to the first position P1, remains hung at the first position P1.

[0064] The yarn supply package 10 slides from the second position P2 to the first position P1 and is then removed by the creel robot 15.

[0065] As described above, according to the yarn package transport trolley 1 of this embodiment, the yarn package 10 that is hung on the peg shaft 22 at the first position P1 on the tip side of the peg shaft 22 is positioned by locking it with the positioning unit 23. This allows it to be positioned in the axial direction of the peg shaft 22 to be removed by a yarn package removal device such as a creel robot 15, and the yarn package 10 can be easily removed. In addition, the yarn package 10 that is hung on the peg shaft 22 at the second position P2 on the trolley body 21 can be moved to the first position P1 after the yarn package 10 on the tip side of the peg shaft 22 has been removed and locked with the positioning unit 23. Therefore, the yarn package 10 that has been moved from the second position P2 to the first position P1 can also be positioned in the predetermined removal position and easily removed. Thus, any of the multiple yarn packages 10 lined up in the axial direction of the peg shaft 22 can be positioned in the axial direction of the peg shaft 22 to a predetermined removal position. Therefore, the yarn supply packages 10 can be hung at both the first position P1 and the second position P2, and any yarn supply package 10 positioned at the first position P1 and the second position P2 can be positioned at a predetermined removal position. This makes it easier to remove multiple yarn supply packages 10. Furthermore, with a simple configuration in which a positioning section 23 is provided between the first position P1 and the second position P2 with respect to the peg shaft 22, any yarn supply package 10 can be positioned at a predetermined removal position. This suppresses the complexity of the structure of the yarn supply package transport trolley 1 and the increase in manufacturing costs. Thus, with the yarn supply package transport trolley 1 of this embodiment, any of the multiple yarn supply packages 10 arranged in the axial direction of the peg shaft 22 can be positioned at a predetermined removal position in the axial direction of the peg shaft 22, thereby suppressing the complexity of the structure and the increase in manufacturing costs.

[0066] Furthermore, according to the yarn supply package transport trolley 1 of this embodiment, when the positioning part 23 is in the protruding state, the locking part 23a of the positioning part 23 protrudes upward from the peg shaft 22, allowing the yarn supply package 10 to be positioned and hung on the peg shaft 22 at the first position P1 and the second position P2, respectively. Also, when the positioning part 23 is in the non-protruding state, the locking part 23a of the positioning part 23 does not protrude upward from the peg shaft 22, allowing the yarn supply package 10 to be freely moved along the peg shaft 22 between the first position P1 and the second position P2.

[0067] Furthermore, according to the yarn supply package transport trolley 1 of this embodiment, the positioning unit 23 is provided so that it can transition between a protruding state and a non-protruding state, regardless of whether the yarn supply package 10 is hanging on the second position P2 or not. Therefore, according to the yarn supply package transport trolley 1 of this embodiment, by setting the positioning unit 23 to the non-protruding state when the yarn supply package 10 is hanging on the second position P2, the yarn supply package 10 can be freely moved along the peg axis 22 from the second position P2 to the first position P1 by causing the positioning unit 23 to move over the peg axis 22. Then, after moving the yarn supply package 10 to the first position P1, the positioning unit 23 can be transitioned to the protruding state so that the yarn supply package 10 can be positioned and hung on the peg axis 22 at the first position P1. Furthermore, by setting the positioning part 23 to a non-protruding state when the yarn supply package 10 is not hung at the second position P2, the positioning part 23 can be moved over the peg shaft 22, allowing the yarn supply package 10 to move freely along the peg shaft 22 from the first position P1 to the second position P2, and the yarn supply package 10 can be hung on the peg shaft 22 at the second position P2. Also, by setting the positioning part 23 to a protruding state when the yarn supply package 10 is not hung at the second position P2, the yarn supply package 10 can be locked to the positioning part 23 and positioned and hung on the peg shaft 22 at the first position P1. Therefore, regardless of whether the yarn supply package 10 is hung at the second position P2 or not, the yarn supply package 10 can be positioned and hung on the peg shaft 22 at the first position P1.

[0068] Furthermore, according to the yarn supply package transport trolley 1 of this embodiment, since multiple peg shafts 22 are provided extending from the trolley body 21, multiple yarn supply packages 10 can be hung on each of the multiple peg shafts 22 on a single trolley body 21, and a large number of yarn supply packages 10 can be loaded onto the yarn supply package transport trolley 1 and transported.

[0069] Furthermore, according to the yarn package transport trolley 1 of this embodiment, one or more yarn packages 10 can be hung at the second position P2, so that two or more yarn packages 10 can be hung on a single peg shaft 22. Therefore, a large number of yarn packages 10 can be loaded onto the yarn package transport trolley 1 and transported.

[0070] Furthermore, in the yarn package transport trolley 1 of this embodiment, since the peg shaft 22 extends diagonally upward from the trolley body 21, even if an external force acts on the yarn package transport trolley 1 and vibration occurs, it is possible to more reliably prevent the yarn package 10 hanging on the peg shaft 22 from falling. Also, the yarn package 10 hanging at the first position P1 is biased toward the trolley body 21 side along the axial direction of the peg shaft 22 by gravity and is locked to the positioning part 23. For this reason, the yarn package 10 hanging on the peg shaft 22 at the first position P1 on the tip side of the peg shaft 22 is reliably locked to the positioning part 23 and can be positioned in a stable state. Moreover, if the peg shaft 22 protrudes upward, the yarn package 10 hanging on the peg shaft 22 will be supported in a stable state relative to the peg shaft 22 by its own weight. However, if the peg shaft 22 is not provided with a positioning part 23, the multiple yarn supply packages 10 hung on the peg shaft 22 will come into contact with each other, and the weight of the yarn supply packages 10 at the tip of the peg shaft 22 will make it difficult to remove the yarn supply packages 10 at the tip. However, according to the yarn supply package transport trolley 1 of this embodiment, the peg shaft 22 extends upward and is provided with a positioning part 23 that engages with the yarn supply packages 10 hung at the first position P1. As a result, the yarn supply packages 10 hung on the peg shaft 22 at the first position P1 do not come into contact with the yarn supply packages 10 hung on the peg shaft 22 at the second position P2, so the yarn supply packages 10 hung on the peg shaft 22 at the tip at the first position P1 can be easily removed.

[0071] Furthermore, according to the yarn supply package transport trolley 1 of this embodiment, among the multiple yarn supply packages 10, the yarn supply package 10 that is hung on the peg shaft 22 at the first position P1 on the tip side of the peg shaft 22 and positioned by being locked to the positioning unit 23 is removed by the creel robot 15. That is, the first position P1 is a predetermined removal position when the creel robot 15 removes the yarn supply package 10 from the peg shaft 22. Then, the yarn supply package 10 that is hung on the peg shaft 22 at the second position P2 on the trolley body 21 side can be moved to the first position P1 after the yarn supply package 10 on the tip side of the peg shaft 22 has been removed and locked to the positioning unit 23. For this reason, the yarn supply package 10 that has been moved from the second position P2 to the first position P1 can also be positioned at a predetermined removal position and can be easily removed by the creel robot 15. Therefore, any of the multiple yarn supply packages 10 arranged in the axial direction of the peg shaft 22 can be positioned at a predetermined extraction position when the creel robot 15 extracts them in the axial direction of the peg shaft 22. Furthermore, there is no need to provide special equipment to the creel robot 15 for the extraction of the yarn supply packages 10 by the creel robot 15, and a structure can be realized that makes it easy for the creel robot 15 to extract multiple yarn supply packages 10.

[0072] Although embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and various modifications are possible as long as they are within the scope of the claims. For example, it may be implemented with the following modifications.

[0073] (1) In the above-described embodiment, the peg shaft was described as being provided in a cantilevered manner extending diagonally upward from the trolley body, but this is not required. The peg shaft may be provided in a cantilevered manner extending horizontally from the trolley body.

[0074] (2) In the above-described embodiment, the positioning part was described as being rotatably mounted on the peg shaft as an example, but this is not required. The positioning part may be fixed and mounted in a non-rotatable manner on the peg shaft.

[0075] (3) In the above-described embodiment, the positioning part was described as being mounted so as to be rotatable around a rotation axis with respect to the peg shaft, with respect to a direction perpendicular to the axial direction of the peg shaft as the center. However, this is not required. The positioning part may be mounted so as to be slidably fitted onto the peg shaft in the circumferential direction of the peg shaft. As an example of a configuration in which the positioning part is mounted so as to be slidably fitted onto the peg shaft in the circumferential direction of the peg shaft, for example, the modified yarn package transport trolley shown in Figures 11 and 12 may be implemented.

[0076] Figure 11 is a diagram illustrating a modified yarn package transport trolley, and shows an enlarged view of the peg shaft 22 and positioning part 29 of the modified yarn package transport trolley. Figure 12 is an enlarged view of a part of Figure 11. Figures 11 and 12 illustrate a state in which the yarn package 10 is hung on the first position P1 of the peg shaft 22, and the yarn package 10 is not hung on the second position P2. In the following description of the modified examples, elements configured in the same way as the above-described embodiment and elements configured in correspondence with the above-described embodiment will be denoted by the same reference numerals in the drawings, or the same reference numerals will be referenced, and their explanations will be omitted.

[0077] The modified yarn package transport trolley shown in Figures 11 and 12 is configured similarly to the yarn package transport trolley 1 of the previously described embodiment. However, the modified yarn package transport trolley differs from the yarn package transport trolley 1 of the previously described embodiment in the configuration of the positioning unit 29 and the configuration of the form in which the positioning unit 29 is attached to the peg shaft 22.

[0078] As shown in Figures 11 and 12, in the modified yarn package transport trolley, the peg shaft 22 is provided with a groove 22b that extends circumferentially around the axis of the peg shaft 22 at the portion where the positioning unit 29 is attached. The groove 22b is provided as a region where the diameter of the peg shaft 22 is partially reduced in the axial direction of the peg shaft 22, and the outer circumference of the peg shaft 22 is recessed in a stepped manner. The groove 22b is provided so as to extend over the entire circumference in the circumferential direction around the axis of the peg shaft 22.

[0079] The positioning unit 29, like the positioning unit 23 in the previously described embodiment, is provided on the peg shaft 22 and is attached to the peg shaft 22 in a state where it does not move in the axial direction of the peg shaft 22 between the first position P1 and the second position P2 in the axial direction of the peg shaft 22. The positioning unit 29 is provided to engage with the yarn supply package 10 hung on the first position P1 in the axial direction of the peg shaft 22, thereby positioning the yarn supply package 10 at the first position P1. The positioning unit 29 is provided so that it can transition between a protruding state in which it protrudes upward from the peg shaft 22 and can engage with the yarn supply package 10 hung on the first position P1, and a non-protruding state in which it does not protrude upward from the peg shaft 22. Furthermore, the positioning unit 29 is provided so that it can transition between the protruding state and the non-protruding state in both the state in which the yarn supply package 10 is hung on the second position P2 and the state in which it is not. However, unlike the positioning portion 23 of the embodiment described above, the positioning portion 29 is provided with a mounting portion 29a that is fitted into the groove 22b of the peg shaft 22 so as to be slidable in the circumferential direction of the peg shaft 22 and attached to the peg shaft 22, and a protrusion 29b that protrudes from the mounting portion 29a.

[0080] The mounting portion 29a is provided as a cylindrical portion with a portion open in the circumferential direction. The inner diameter of the mounting portion 29a, which is a cylindrical portion with a portion open in the circumferential direction, is set to correspond to the diameter of the groove 22b portion of the peg shaft 22. As a result, the mounting portion 29a is provided in a shape that allows it to slide freely into the groove 22b of the peg shaft 22 in the circumferential direction. Furthermore, the region of the cylindrical mounting portion 29a that is open in the circumferential direction is, for example, open over an arc angle slightly smaller than half a circumference in the circumferential direction. As a result, the mounting portion 29a is configured to fit into the groove 22b of the peg shaft 22 over a region with an arc angle slightly larger than half a circumference of the outer circumference of the groove 22b. For this reason, when the mounting portion 29a is slidably fitted into the groove 22b of the peg shaft 22, it is configured not to fall out of the groove 22b. Furthermore, the mounting portion 29a is provided so as to be circumferentially slidable with respect to the groove 22b of the peg shaft 22, and is configured to slide along the groove 22b and rotate relative to the peg shaft 22. The positioning portion 29 is provided such that, as the mounting portion 29a slides along the groove 22b and rotates relative to the peg shaft 22, the positioning portion 29 transitions between a protruding state in which it protrudes upward from the peg shaft 22 and a non-protruding state in which it does not protrude upward from the peg shaft 22.

[0081] Furthermore, the axial dimension of the mounting portion 29a, which is a cylindrical part with a circumferential opening, is set to be slightly smaller than the length of the groove 22b in the axial direction of the peg shaft 22. Therefore, when the mounting portion 29a is slidably fitted in the groove 22b of the peg shaft 22 in the circumferential direction, any attempt to move the peg shaft 22 in the axial direction will result in contact with the edge of the groove 22b, restricting the axial movement of the peg shaft 22. As a result, the positioning portion 29 is configured to be mounted in a position between the first position P1 and the second position P2 in the axial direction of the peg shaft 22, where it can be locked into the yarn supply package 10 placed at the first position P1.

[0082] Furthermore, the positioning portion 29 is made of, for example, a resin material and is provided to be elastically deformable. This allows the mounting portion 29a to be fitted into the groove 22b of the peg shaft 22 by pressing the mounting portion 29a into the groove 22b, thereby elastically deforming the mounting portion 29a and attaching it to the groove 22b. In other words, by pressing the mounting portion 29a into the groove 22b, it is elastically deformed and its diameter is temporarily expanded, allowing the mounting portion 29a to be pushed into the groove 22b. After being pushed into the groove 22b, the mounting portion 29a elastically recovers and fits into the groove 22b, becoming slidably mounted relative to the groove 22b.

[0083] The protrusion 29b is provided integrally with the mounting portion 29a and is provided as a portion that protrudes from the mounting portion 29a. The protrusion 29b is provided, for example, as a portion that protrudes from the mounting portion 29a in a projection-like or plate-like manner. The protrusion 29b is provided as a portion that can be locked with the yarn supply package 10 hung at the first position P1 when the mounting portion 29a is attached to the peg shaft 22. When the mounting portion 29a is attached to the groove 22b of the peg shaft 22, the protrusion 29b is positioned to protrude outward from the groove 22b of the peg shaft 22. The protrusion 29b then protrudes upward from the peg shaft 22 when the mounting portion 29a, which is circumferentially fitted into the groove 22b of the peg shaft 22, is rotated relative to the peg shaft 22, thereby adjusting the circumferential position of the peg shaft 22 as appropriate. When the circumferential position of the mounting portion 29a around the peg shaft 22 is adjusted so that the protrusion 29b protrudes upward, the positioning portion 29 is in a protruding state that protrudes upward from the peg shaft 22 and can be locked into the yarn supply package 10 hung at the first position P1. That is, in the protruding state, the mounting portion 29a is attached to the peg shaft 22 with the protrusion 29b protruding upward, and the protrusion 29b is locked into the yarn supply package 10 hung at the first position P1. When the positioning portion 29 is in the protruding state, the positioning portion 29 protrudes upward from the peg shaft 22, allowing the yarn supply package 10 to be positioned and hung on the peg shaft 22 at the first position P1 and the second position P2, respectively.

[0084] Furthermore, the protrusion 29b can also be positioned so that it does not protrude upward from the peg shaft 22 by rotating the mounting portion 29a relative to the peg shaft 22, thereby appropriately adjusting its position in the circumferential direction of the peg shaft 22. When the circumferential position of the mounting portion 29a around the peg shaft 22 is adjusted so that the protrusion 29b does not protrude upward from the peg shaft 22, the positioning portion 29 is in a non-protruding state, meaning it does not protrude upward from the peg shaft 22. In other words, in the non-protruding state, the mounting portion 29a is attached to the peg shaft 22 with the protrusion 29b not protruding upward. When the positioning portion 29 is in the non-protruding state, the positioning portion 29 does not protrude upward from the peg shaft 22, allowing the yarn supply package 10 to move freely along the peg shaft 22 between the first position P1 and the second position P2. For example, when sliding the yarn supply package 10, which is hung on the peg shaft 22 at the second position P2, to the first position P1 in the axial direction of the peg shaft 22, the mounting portion 29a is rotated. At this time, the mounting portion 29a is operated so that the state of the positioning portion 29 transitions from a protruding state in which the convex portion 29b protrudes upward from the peg shaft 22 to a non-protruding state in which the convex portion 29b does not protrude upward from the peg shaft 22. As a result, the yarn supply package 10, which is hung at the second position P2, can pass through the positioning portion 29, which is fitted into the groove 22b of the peg shaft 22, without coming into contact with the convex portion 29b, and slide to the first position P1 in the axial direction of the peg shaft 22.

[0085] As described above, the positioning portion 29 is provided with a mounting portion 29a and a protrusion portion 29b. The mounting portion 29a is provided so as to be rotatably mounted on the peg shaft 22 by fitting it circumferentially into the groove 22b of the peg shaft 22. Furthermore, the protrusion portion 29b is provided so as to protrude from the mounting portion 29a, and when the mounting portion 29a is mounted on the peg shaft 22, it protrudes from the peg shaft 22 so as to be able to engage with the yarn supply package 10 hung at the first position P1. Thus, the positioning portion 29 is configured such that when the mounting portion 29a is mounted on the peg shaft 22 with the protrusion portion 29b protruding upward, the protrusion portion 29b engages with the yarn supply package 10 hung at the first position P1. Furthermore, the positioning unit 29 is configured to allow the yarn supply package 10 to move freely along the peg shaft 22 between the first position P1 and the second position P2 when the mounting unit 29a is attached to the peg shaft 22 in a non-protruding state where the protrusion 29b does not protrude upward.

[0086] The modified yarn package transport trolley described above can achieve the same effects as the embodiment described above. Specifically, with the modified yarn package transport trolley described above, any of the multiple yarn packages 10 arranged in the axial direction of the peg shaft 22 can be positioned at the extraction position of the creel robot 15 in the axial direction of the peg shaft 22, thereby suppressing structural complexity and increased manufacturing costs.

[0087] Furthermore, according to the modified yarn package transport trolley described above, when the positioning part 29 is in the protruding state, the convex portion 29b of the positioning part 29 protrudes upward from the peg shaft 22, allowing the yarn package 10 to be positioned and hung on the peg shaft 22 at the first position P1 and the second position P2, respectively. Also, when the positioning part 29 is in the non-protruding state, the convex portion 29b of the positioning part 29 does not protrude upward from the peg shaft 22, allowing the yarn package 10 to be freely moved along the peg shaft 22 between the first position P1 and the second position P2.

[0088] Furthermore, according to the modified yarn package transport trolley described above, the positioning unit 29 is provided so that it can transition between a protruding state and a non-protruding state, regardless of whether the yarn package 10 is hanging on the second position P2 or not. Therefore, according to the modified yarn package transport trolley described above, by setting the positioning unit 29 to the non-protruding state when the yarn package 10 is hanging on the second position P2, the yarn package 10 can be freely moved along the peg axis 22 from the second position P2 to the first position P1 by causing the positioning unit 29 to move over the peg axis 22. Then, after moving the yarn package 10 to the first position P1, the positioning unit 29 can be transitioned to the protruding state so that the yarn package 10 can be positioned and hung on the peg axis 22 at the first position P1. Furthermore, by setting the positioning part 29 to a non-protruding state when the yarn supply package 10 is not hung at the second position P2, the positioning part 29 can be moved freely along the peg shaft 22 from the first position P1 to the second position P2 by allowing the positioning part 29 to move over the peg shaft 22, and the yarn supply package 10 can be hung on the peg shaft 22 at the second position P2. Also, by setting the positioning part 29 to a protruding state when the yarn supply package 10 is not hung at the second position P2, the yarn supply package 10 can be locked to the positioning part 29 and positioned and hung on the peg shaft 22 at the first position P1. Therefore, regardless of whether the yarn supply package 10 is hung at the second position P2 or not, the yarn supply package 10 can be positioned and hung on the peg shaft 22 at the first position P1. [Explanation of Symbols]

[0089] 1. Yarn packaging transport cart 10 yarn supply packages 10a bobbin 13 Creel Stand 15 Creel robots 21 Bogie body 22 peg shafts 23, 29 Positioning section P1 1st position P2, Position 2

Claims

1. A yarn supply package transport cart that carries and transports yarn supply packages, A mobile trolley body, A peg shaft is provided so as to extend from the trolley body in a cantilevered manner, and is inserted into the bobbin of the yarn supply package, on which the yarn supply package is hung. The peg shaft is provided with a positioning part, The peg shaft is provided with a first position and a second position, which are aligned along the axial direction of the peg shaft and are positions on which the yarn supply package is hung. The first position is provided as the position on the tip side of the peg shaft in the axial direction, and the second position is provided as the position on the trolley body side in the axial direction. The positioning unit is attached to the peg shaft in a state that does not move in the axial direction between the first position and the second position in the axial direction, and is provided to engage with the yarn supply package hung at the first position to position the yarn supply package at the first position. The positioning portion is provided so as to be able to transition between a protruding state in which it protrudes upward from the peg shaft and can be locked to the yarn supply package hung in the first position, and a non-protruding state in which it does not protrude upward from the peg shaft. A yarn package transport trolley characterized by the following features.

2. In the yarn supply package transport trolley according to claim 1, The positioning unit is provided so that it can transition between the protruding state and the non-protruding state, regardless of whether the yarn supply package is placed on the second position or not. A yarn package transport trolley characterized by the following features.

3. A yarn supply package transport trolley according to claim 1, The positioning unit is rotatably mounted about a rotation axis that extends in a direction perpendicular to the axial direction with respect to the peg shaft, and is provided such that it transitions between the protruding state and the non-protruding state by rotating around the rotation axis. The positioning portion includes a locking portion that can protrude upward from the peg shaft and can lock into the yarn supply package that is hung in the first position, In the protruding state, the locking portion is positioned to protrude upward from the peg shaft, and in the non-protruding state, the locking portion is positioned not to protrude upward from the peg shaft. The positioning portion is in the non-protruding state when no external force is acting on it, and becomes the protruding state when rotation is performed. A yarn package transport trolley characterized by the following features.

4. A yarn supply package transport trolley according to Claim 2, The positioning unit is rotatably mounted about a rotation axis that extends in a direction perpendicular to the axial direction with respect to the peg shaft, and is provided such that it transitions between the protruding state and the non-protruding state by rotating around the rotation axis. The positioning portion includes a locking portion that can protrude upward from the peg shaft and can lock into the yarn supply package that is hung in the first position, In the protruding state, the locking portion is positioned to protrude upward from the peg shaft, and in the non-protruding state, the locking portion is positioned not to protrude upward from the peg shaft. The positioning portion is in the non-protruding state when no external force is acting on it, and becomes the protruding state when rotation is performed. A yarn package transport trolley characterized by the following features.

5. A yarn supply package transport trolley according to Claim 1, The peg shaft is provided with a groove that extends circumferentially around the axis. The positioning portion is provided with a mounting portion that is fitted into the groove so as to be slidable in the circumferential direction and attached to the peg shaft, and a protrusion that extends from the mounting portion. The positioning portion is provided such that the mounting portion slides along the groove and rotates relative to the peg shaft, causing a transition between the protruding state and the non-protruding state. In the aforementioned protruding state, the mounting portion is attached to the peg shaft with the protrusion protruding upward from the peg shaft, and the protrusion engages with the yarn supply package hung in the first position. In the non-protruding state, the mounting portion is attached to the peg shaft in a state where the protrusion does not protrude upward from the peg shaft. A yarn package transport trolley characterized by the following features.

6. A yarn supply package transport trolley according to Claim 2, The peg shaft is provided with a groove that extends circumferentially around the axis. The positioning portion is provided with a mounting portion that is fitted into the groove so as to be slidable in the circumferential direction and attached to the peg shaft, and a protrusion that extends from the mounting portion. The positioning portion is provided such that the mounting portion slides along the groove and rotates relative to the peg shaft, causing a transition between the protruding state and the non-protruding state. In the aforementioned protruding state, the mounting portion is attached to the peg shaft with the protrusion protruding upward from the peg shaft, and the protrusion engages with the yarn supply package hung in the first position. In the non-protruding state, the mounting portion is attached to the peg shaft in a state where the protrusion does not protrude upward from the peg shaft. A yarn package transport trolley characterized by the following features.

7. A yarn supply package transport trolley according to Claim 1, Multiple peg shafts are provided so as to extend from the trolley body in a cantilevered manner. A yarn package transport trolley characterized by the following features.

8. A yarn supply package transport trolley according to Claim 2, Multiple peg shafts are provided so as to extend from the trolley body in a cantilevered manner. A yarn package transport trolley characterized by the following features.

9. A yarn supply package transport trolley according to Claim 3, Multiple peg shafts are provided so as to extend from the trolley body in a cantilevered manner. A yarn package transport trolley characterized by the following features.

10. A yarn supply package transport trolley according to Claim 4, Multiple peg shafts are provided so as to extend from the trolley body in a cantilevered manner. A yarn package transport trolley characterized by the following features.

11. A yarn supply package transport trolley according to Claim 5, Multiple peg shafts are provided so as to extend from the trolley body in a cantilevered manner. A yarn package transport trolley characterized by the following features.

12. A yarn supply package transport trolley according to claim 6, Multiple peg shafts are provided so as to extend from the trolley body in a cantilevered manner. A yarn package transport trolley characterized by the following features.

13. A yarn supply package transport cart according to any one of claims 1 to 12, The second position is provided as a position on which one or more of the yarn supply packages are hung. A yarn package transport trolley characterized by the following features.

14. A yarn supply package transport trolley according to any one of claims 1 to 12, The peg shaft is provided so as to extend cantileveredly upward from the trolley body. A yarn package transport trolley characterized by the following features.

15. A yarn supply package transport trolley according to claim 13, The peg shaft is provided so as to extend cantileveredly upward from the trolley body. A yarn package transport trolley characterized by the following features.

16. A yarn supply package transport cart according to any one of claims 1 to 12, The creel robot carries and transports the aforementioned yarn supply package, which is removed by the creel robot and supplied to the creel stand. A yarn package transport trolley characterized by the following features.

17. A yarn supply package transport trolley according to claim 13, The creel robot carries and transports the aforementioned yarn supply package, which is removed by the creel robot and supplied to the creel stand. A yarn package transport trolley characterized by the following features.

18. A yarn supply package transport trolley according to claim 14, The creel robot carries and transports the aforementioned yarn supply package, which is removed by the creel robot and supplied to the creel stand. A yarn package transport trolley characterized by the following features.

19. A yarn supply package transport trolley according to claim 15, The creel robot carries and transports the aforementioned yarn supply package, which is removed by the creel robot and supplied to the creel stand. A yarn package transport trolley characterized by the following features.

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