Textile machinery

Abstract

To secure position reproducibility and attitude reproducibility of an oil supply guide relative to a thread guide, and to easily fix the oil supply guide.SOLUTION: A cylindrical channel part 63 having an oil agent channel 64 formed on the inside is provided in an oil supply guide 6. A cylindrical cover part 71 capable of covering an outer peripheral surface of the channel part 63 is provided in a holder 7. A wall face 73a capable of contacting a fixing member 8 is provided in the holder 7, and a bottom face 66a capable of contacting the fixing member 8 is provided in the oil supply guide 6. The bottom face 66a provided in the oil supply guide 6 contacts the fixing member 8 whose position in a circumferential direction is fixed by the wall surface 73a provided in the holder 7, thereby fixing the position of the oil supply guide 6 in the circumferential direction.SELECTED DRAWING: Figure 8

Description

Technical Field

[0004] ,

[0005] ,

[0001] The present invention relates to a fiber machine provided with an oiling device for applying an oil agent to a yarn.

Background Art

[0002] Conventionally, an oiling device for applying an oil agent to a yarn has been known. For example, Patent Document 1 discloses a spinning take-up device provided with an oiling section (oiling device) for applying an oil agent to a yarn that is spun from a spinning device and travels. Such an oiling section includes an oiling guide having a discharge port for discharging an oil agent, and a pair of yarn guiding members that are respectively arranged on both sides of the discharge port in a direction orthogonal to the yarn traveling direction and guide the yarn. The pair of yarn guiding members can prevent the yarn from coming off the oiling guide when the yarn bounces.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

[0006] The object of the present invention is to provide a textile machine that ensures the reproducibility of the position and orientation of the lubrication guide relative to the thread path, and that allows the lubrication guide to be easily fixed. [Means for solving the problem]

[0007] The textile machine according to the first invention is a textile machine equipped with a lubrication device for applying an oil to a yarn running along a predetermined yarn path, wherein the lubrication device has a holder attached to a machine base, a discharge port for discharging an oil, and a pair of yarn guide members arranged on both sides of the discharge port in a direction perpendicular to the yarn running direction in which the yarn runs and for guiding the yarn, and further comprises a lubrication guide that is detachable from the holder, a fixing member for fixing the lubrication guide to the holder, and a packing disposed between the holder and the lubrication guide, wherein either the lubrication guide or the holder is provided with a cylindrical flow path portion formed therein, through which the oil flows toward the discharge port, and the side of the lubrication guide or the holder other than the side with the flow path portion is provided with a cylindrical covering portion arranged coaxially with the flow path portion and capable of covering the outer circumferential surface of the flow path portion, the holder is provided with a first contact surface that can contact the fixing member, and the lubrication guide is provided with a second contact surface that can contact the fixing member. The first contact surface is a surface that contacts the fixing member to fix the position of the fixing member in the circumferential direction of the flow path, and the second contact surface is a surface that contacts the fixing member, whose position in the circumferential direction has been fixed by the first contact surface, to fix the position of the lubrication guide in the circumferential direction.

[0008] According to the above configuration, by inserting the flow channel into the covering portion and covering the outer surface of the flow channel with the covering portion, the position of the lubrication guide in a plane perpendicular to the extension direction of the flow channel can be fixed. Therefore, by covering the outer surface of the flow channel with the covering portion, the positional reproducibility of the lubrication guide relative to the thread path can be ensured. In addition, the first contact surface between the fixing member and the holder and the second contact surface of the lubrication guide surface and By bringing the parts into contact, the circumferential position of the fuel supply guide can be fixed, ensuring the reproducibility of the fuel supply guide's orientation. In addition, by covering the outer surface of the flow path with the covering part and bringing the fixing member into contact with the contact surfaces of the holder and the fuel supply guide, the fuel supply guide can be easily fixed.

[0009] In the textile machine according to the second invention, either the oil supply guide or the holder is provided with a recess that is recessed in the direction of extension of the flow path, and the other of the oil supply guide and the holder that does not have the recess is provided with a projection that can be fitted into the recess.

[0010] According to the above configuration, fitting the protrusion into the recess can assist in aligning the lubrication guide and holder in the circumferential direction.

[0011] In the textile machine according to the third invention, among the first and second contact surfaces, the contact surface on the side of the oil supply guide and the holder on which the flow path is provided is arranged on both sides of the oil flow path with respect to an orthogonal direction perpendicular to the extension direction of the flow path.

[0012] According to the above configuration, a large contact surface on the flow path side can be secured with simple processing, and the accuracy of the reproducibility of the lubrication guide's posture can be improved.

[0013] In the textile machine according to the fourth invention, at least two first contact surfaces are provided, and the at least two first contact surfaces sandwich the fixing member from both sides in the circumferential direction.

[0014] According to the above configuration, the fixing member is fitted into the space between the two first contact surfaces, thereby fixing its position in the circumferential direction.

[0015] In the textile machine according to the fifth invention, at least two second contact surfaces are provided, and the at least two second contact surfaces sandwich the fixing member from both sides in the circumferential direction.

[0016] According to the above configuration, the position of the fuel supply guide in the circumferential direction can be fixed by fitting the fixing member into the space between the two second contact surfaces.

[0017] In the textile machine according to the sixth invention, the first contact surface is formed in either the flow channel portion or the covering portion, the second contact surface is formed in a portion of the flow channel portion or the covering portion that is different from the portion on which the first contact surface is formed, the first contact surface and the second contact surface can be arranged on the same plane, and the fixing member has a plane that contacts the first contact surface and the second contact surface which are arranged on the same plane.

[0018] According to the above configuration, the shape of the fixing member can be simplified.

[0019] In the textile machine according to the seventh invention, the side of the oil supply guide and the holder on which the covering portion is provided has a connecting portion formed therein, which is connected to one end of the oil flow path, the covering portion has a first orthogonal surface which is perpendicular to the direction of extension and faces toward the connecting portion, the flow path portion has a second orthogonal surface which is perpendicular to the direction of extension of the flow path portion and faces toward the opposite side of the connecting portion, the packing is disposed between the end face of the flow path portion on which one end of the oil flow path is open and the connecting surface of the connecting portion on which the connecting flow path is open, the packing can bias the oil supply guide in a direction toward which the first orthogonal surface and the second orthogonal surface are brought toward each other, and when the plane of the fixing member is in contact with the first contact surface and the second contact surface, the fixing member is sandwiched between the first orthogonal surface and the second orthogonal surface with respect to the direction of extension.

[0020] According to the above configuration, the lubrication guide is biased by the packing in a direction that brings the first orthogonal surface and the second orthogonal surface closer together. Therefore, by sandwiching the fixing member between the first orthogonal surface of the covering portion and the second orthogonal surface of the flow path portion in the direction of extension, the positioning of the lubrication guide and the holder in the direction of extension of the flow path portion can be accurately performed without requiring precise machining or other methods.

[0021] In the textile machine according to the eighth invention, on the holder, two third orthogonal planes are provided at both ends in the extending direction of the flow path portion on the first contact surface, which are planes orthogonal to the extending direction and face each other in the extending direction, and on the oil supply guide, two fourth orthogonal planes are provided at both ends in the extending direction of the flow path portion on the second contact surface, which are planes orthogonal to the extending direction and face each other in the extending direction. The distance between the two third orthogonal planes, the distance between the two fourth orthogonal planes, and the length of the fixing member in the extending direction are all the same.

[0022] According to the above configuration, when the plane of the fixing member contacts the first contact surface and the second contact surface, the fixing member is sandwiched from both sides in the extending direction by the third orthogonal planes and is also sandwiched from both sides in the extending direction by the fourth orthogonal planes. Thereby, the positions of the oil supply guide and the holder in the extending direction are determined.

[0023] In the textile machine according to the ninth invention, a groove is formed on the inner surface of the covering portion, and the packing is arranged in the groove.

[0024] According to the above configuration, when the flow path portion and the covering portion are relatively moved, the packing is difficult to move.

[0025] In the textile machine according to the tenth invention, at least one of the first contact surface and the second contact surface is arranged on one side of the central axis of the covering portion in the orthogonal direction orthogonal to the extending direction of the flow path portion, and at least one of the first contact surface and the second contact surface can be arranged on the other side of the central axis in the orthogonal direction. The fixing member is formed of a material having an elastic force, and by contacting at least one of the first contact surface and the second contact surface arranged on both sides of the central axis in the orthogonal direction, the flow path portion is sandwiched from both sides in the orthogonal direction by the elastic force.

[0026] According to the above configuration, since the fixing member is difficult to move, the positions of the oil supply guide and the holder can be stably fixed.

[0027] In the textile machine according to the eleventh invention, the fixing member includes a first portion having a portion that contacts the first contact surface and the second contact surface, and a second portion adjacent to the first portion, and an opening is formed that straddles the first portion and the second portion. A portion formed in the second portion of the opening is larger than the outer shape of the covering portion, and the covering portion is inserted through a portion formed in the first portion of the opening in the fixing member, and then the first contact surface and the second contact surface are contacted. Record number It can take a first position in which the covering portion is inserted through a portion formed in the second portion of the opening and contacts the first contact surface and the second contact surface, and a second position in which the covering portion is inserted through a portion formed in the second portion of the opening and does not contact the first contact surface and the second contact surface.

[0028] According to the above configuration, by setting the fixing member to the first position, the oil supply guide and the holder can be fixed, and by setting the fixing member to the second position, the fixing of the oil supply guide and the holder can be released. Even when the fixing of the oil supply guide and the holder is released, the covering portion remains inserted through the opening of the fixing member, so that the loss of the fixing member can be avoided.

[0029] In the textile machine according to the twelfth invention, the first position is lower than the second position in the vertical direction.

[0030] According to the above configuration, it is possible to prevent the fixing member from unintentionally moving from the first position to the second position.

[0031] In the textile machine according to the thirteenth invention, the first contact surface and the second contact surface are flat surfaces.

[0032] According to the above configuration, for example, compared with the case where a screw is provided on the fixing member and the first contact surface and the second contact surface are surfaces that define a screw groove, the processing of the holder and the oil supply guide is easy.

[0033] In the textile machine according to the fourteenth invention, the oil supply guide is made of ceramics.

[0034] If the lubrication guide is made of ceramic, fixing its position by, for example, fitting a male thread on a fixing member with a female thread on the lubrication guide may cause the lubrication guide to crack. However, if the position of the lubrication guide in the circumferential direction is fixed by bringing the fixing member into contact with a flat second contact surface, cracking of the lubrication guide can be suppressed, even if the lubrication guide is made of ceramic.

[0035] In the textile machine according to the 15th invention, the packing is annular.

[0036] According to the above configuration, a single packing can seal the entire circumference between the holder and the lubrication guide. Therefore, the packing is easy to manufacture.

[0037] In the textile machine according to the 16th invention, the lubrication device applies an oil to the yarn running in the false twisting machine.

[0038] In a false twisting machine that false twists yarn supplied from a yarn supply package and then winds it to form a winding package, the amount of oil applied to the yarn is small because additional oil is applied to yarn that already has oil attached. An oil supply guide can reduce the amount of oil applied to the yarn to a relatively small amount. Therefore, it is preferable to apply an oil supply device with an oil supply guide to a false twisting machine. With this configuration, when an oil supply device with an oil supply guide is applied to a false twisting machine, the reproducibility of the position and orientation of the oil supply guide relative to the yarn path can be easily ensured.

[0039] In the textile machine according to the 17th invention, the lubrication device further comprises two yarn regulating guides spaced apart in the yarn running direction, and the holder is located between the two yarn regulating guides. ru.

[0040] According to the above configuration, the reproducibility of the position of the lubrication guide relative to the thread path guided by the two thread regulating guides, as well as the reproducibility of the orientation of the lubrication guide, can be ensured, and the lubrication guide can be easily fixed in place. [Brief explanation of the drawing]

[0041] [Figure 1] This is a side view of a false twisting machine according to the first embodiment. [Figure 2] This is a perspective view of the fueling system. [Figure 3] This is a side view of the fueling device. [Figure 4] This is a cross-sectional view of the refueling guide fixed to the holder, in a plane perpendicular to the vertical direction. [Figure 5] This diagram shows a refueling guide; (a) is an oblique view, and (b) is a side view. [Figure 6] This diagram shows the holder, with (a) being an oblique view and (b) being a side view. [Figure 7] This is a diagram showing the fixing members. [Figure 8] This is a cross-sectional view of the lubrication guide fixed to the holder, taken from a plane perpendicular to the direction of extension. [Figure 9] (a) is a perspective view showing the fuel guide in a fixed position, and (b) is a perspective view showing the fuel guide in a released position. [Figure 10] This figure shows the fixing structure of the fueling guide according to the second embodiment. [Figure 11] This diagram shows the fixing structure of the fueling guide according to the third embodiment. [Figure 12] This figure shows the fixing structure of the fueling guide according to the fourth embodiment. [Figure 13] This figure shows the fixing structure of the fueling guide according to the fifth embodiment. [Figure 14] This figure shows the fixing structure of the fueling guide according to the sixth embodiment. [Figure 15] This diagram shows the fixing structure of the fueling guide according to the first modified example of the first embodiment. [Figure 16] This diagram shows the fixing structure of the fueling guide according to a second modified example of the first embodiment. [Figure 17] This diagram shows the fixing structure of the fueling guide according to the first modified example of the fifth embodiment. [Modes for carrying out the invention]

[0042] <First Embodiment> A false twisting machine 1 according to a preferred first embodiment of the present invention will be described with reference to Figure 1. In Figure 1, the direction perpendicular to the plane of the paper is the longitudinal direction of the machine base, and the direction from left to right on the paper is the width direction of the machine base. The direction perpendicular to both the longitudinal direction and the width direction of the machine base is defined as the up-and-down direction (vertical direction) where gravity acts.

[0043] The false twisting machine 1 is configured to perform false twisting on yarn Y made of synthetic fibers such as nylon (polyamide fiber) or polyester. The false twisting machine 1 includes a yarn supply unit 2 for supplying yarn Y, a processing unit 3 for false twisting the yarn Y supplied from the yarn supply unit 2, and a winding unit 4 for winding the yarn Y processed by the processing unit 3 onto a winding bobbin Bw.

[0044] The yarn supply unit 2 has a creel stand 5 that holds multiple yarn supply packages Ps. The yarn supply unit 2 supplies multiple yarns Y to the processing unit 3. The processing unit 3 false-twists the yarns Y supplied from the yarn supply packages Ps. The processing unit 3 is configured with the following components arranged in order from the upstream side in the yarn travel direction: a first feed roller 11a, a twisting guide 12, a heating device 13, a cooling device 14, a false-twist device 15, a tension sensor 16, a second feed roller 11b, an entanglement device 17, a third feed roller 11c, and a lubrication device 20. The winding unit 4 winds the yarns Y false-twisted in the processing unit 3 onto a winding bobbin Bw using a winding device 10 to form a winding package Pw.

[0045] Furthermore, the false twisting machine 1 has a main machine base 18 extending in the longitudinal direction of the machine base and a support frame 19. A winding device 10 is attached to the main machine base 18. The main machine base 18 is positioned opposite the creel stand 5 with the working space A in the machine base width direction. The devices constituting the processing section 3 are attached to the support frame 19. The devices constituting the processing section 3 are positioned above the working space A.

[0046] In the false twisting machine 1, multiple processing units (also called weights), each having a yarn path formed to pass through the devices constituting the processing section 3, are arranged in a line along the longitudinal direction of the machine base. This allows the false twisting machine 1 to simultaneously perform false twisting on multiple yarns Y running in a line along the longitudinal direction of the machine base.

[0047] In this embodiment, the first feed roller 11a, the second feed roller 11b, and the third feed roller 11c are provided in common to multiple weights (for example, two). Furthermore, the heating device 13 and the cooling device 14 are provided in common to multiple weights (for example, four). In addition, the twisting guide 12, false twist device 15, tension sensor 16, entanglement device 17, and lubrication device 20 Fueling Guide 6, described later. These are provided for each weight.

[0048] The yarn Y supplied from the yarn feeding section 2 to the processing section 3 is stretched between the first feed roller 11a and the second feed roller 11b, and a twist is applied by the false twist device 15. The twist formed by the false twist device 15 propagates to the twist-stopping guide 12, but does not propagate upstream of the twist-stopping guide 12 in the yarn travel direction.

[0049] The yarn Y, which has been stretched and twisted in this way, is heated in the heating device 13 and then cooled in the cooling device 14 to be heat-fixed. The yarn Y that has passed through the false twist device 15 is untwisted by the time it reaches the second feed roller 11b. However, since the twist of the yarn Y is heat-fixed as described above, each filament maintains a wavy false twist state. Furthermore, a tension sensor 16 placed between the false twist device 15 and the second feed roller 11b can detect abnormalities in the yarn Y, such as abnormal tension or yarn breakage.

[0050] Subsequently, the yarn Y is loosened between the second feed roller 11b and the third feed roller 11c, and entanglement is applied by the entanglement device 17. Furthermore, oil is applied to the yarn Y by the oil supply device 20. The oiled yarn Y is then wound up by the winding device 10 in the winding section 4. Note that the yarn Y in the yarn supply package Ps already has oil attached to it. The oil supply device 20 applies additional oil to the yarn Y that already has oil attached to it.

[0051] In the false twisting machine 1, the yarn Y travels along a predetermined yarn path from the yarn feeding section 2 to the winding section 4. For example, Japanese Patent Publication No. 2021-127532 discloses a spinning take-up machine equipped with an oil application guide (corresponding to the "oil application guide" of the present invention) configured to combine multiple filaments spun from a spinneret into a single yarn and to apply an oil to the yarn. The position of the oil application guide in the spinning take-up machine with respect to the yarn travel direction changes depending on the degree of cooling of the yarn spun from the spinneret. That is, the optimal position of the oil application guide with respect to the yarn travel direction changes depending on the type of yarn, etc. In a spinning take-up machine with the above configuration, the yarn path also changes as the position of the oil application guide changes depending on the type of yarn, etc.

[0052] (Fueling device 20) Next, the configuration of the lubrication device 20 will be described with reference to Figures 2 and 3. As shown in Figure 2, the lubrication device 20 has multiple lubrication guides 6, holders 7, fixing members 8, upstream yarn guides 21, and downstream yarn guides 22. A lubrication guide 6 is provided for each weight. Multiple lubrication guides 6 are arranged in a row along the longitudinal direction of the machine base. Lubricant is supplied to each lubrication guide 6 from a lubricant tank 70 that is common to all of the multiple lubrication guides 6.

[0053] The upstream yarn guide 21 and the downstream yarn guide 22 are spaced apart in the yarn travel direction (vertical direction). The upstream yarn guide 21 is located upstream of each lubrication guide 6 with respect to the yarn travel direction. The downstream yarn guide 22 is located downstream of each lubrication guide 6 with respect to the yarn travel direction. That is, the lubrication guide 6 is located between the upstream yarn guide 21 and the downstream yarn guide 22. Between the upstream yarn guide 21 and the downstream yarn guide 22, the yarn Y is guided by the upstream yarn guide 21 and the downstream yarn guide 22, thereby determining the yarn path of the yarn Y. In order to ensure that the yarn Y is sent to the lubrication guide 6 in a bundled state, it is preferable that the upstream yarn guide 21 and the downstream yarn guide 22 are located near the lubrication guide 6. The upstream yarn guide 21 is located between the third feed roller 11c and the lubrication guide 6. The downstream yarn guide 22 is located between the lubrication guide 6 and the winding section 4.

[0054] The yarn Y, which is sent to the lubrication device 20 by the third feed roller 11c and guided by the upstream yarn guide 21 and the downstream yarn guide 22, travels from top to bottom and comes into contact with the contact surface 62 (see Figure 4) of the lubrication guide 6. When the yarn Y comes into contact with the contact surface 62 of the lubrication guide 6, the lubricant discharged from the discharge port 61a (see Figure 4) is applied to the yarn Y.

[0055] (Fixing structure of fueling guide 6) Next, the fixing structure of the refueling guide 6 will be described with further reference to Figures 4 to 9. The refueling guide 6 is detachable from the holder 7. The refueling guide 6 is fixed to the holder 7 by a fixing member 8. As shown in Figure 3, the holder 7 is attached to the support frame 19 and is positioned between the upstream thread guide 21 and the downstream thread guide 22.

[0056] In this disclosure, the fuel guide 6 is made of ceramics. In this disclosure, the holder 7 is made of metal. The holder 7 may also be made of ceramics. The fixing member 8 is a sheet metal member. In the following description, references to the orientation of the fuel guide 6, the holder 7 and the fixing member 8 will be based on the orientation of the fuel guide 6 when it is fixed to the holder 7.

[0057] As shown in Figures 4, 5(a), and (b), the refueling guide 6 has a guide body 60 and a flow path section 63. The guide body 60 and the flow path section 63 are integrally formed. The guide body 60 is provided with a contact surface 62. The flow path section 63 is substantially cylindrical, and an oil flow path 64 is formed inside it through which the oil flows toward the discharge port 61a. The guide body 60 is provided at one end of the flow path section 63 (left side in Figure 4) with respect to the extension direction of the flow path section 63.

[0058] The refueling guide 6 is fixed to the holder 7 in a position where the extension direction of the flow path 63 coincides with the machine width direction. In the following description, the extension direction of the flow path 63 will be simply referred to as the "extension direction." Also, the direction perpendicular to both the extension direction and the vertical direction (i.e., the longitudinal direction of the machine, which is the arrangement direction of the multiple refueling guides 6) will be simply referred to as the "arrangement direction." The arrangement direction corresponds to the "orthogonal direction" in this invention. Furthermore, the circumferential direction of the flow path 63 will be simply referred to as the "circumferential direction."

[0059] The end face on one side of the guide body 60 in the extension direction (left side in Figure 4) is the contact surface 62. The oil flow path 64 is formed spanning the guide body 60 and the flow path section 63. The oil flow path 64 extends along the extension direction. The end on one side of the oil flow path 64 in the extension direction (left side in Figure 4) is connected to the nozzle 61. The nozzle 61 connects the end on one side of the oil flow path 64 in the extension direction to the discharge port 61a formed on the contact surface 62.

[0060] The guide body 60 is provided with a pair of thread guide members 68 positioned on both sides of the discharge port 61a in the arrangement direction, which is perpendicular to the thread travel direction (up and down direction). The thread guide members 68 protrude to one side (left side in Figure 4) of the contact surface 62 in the stretching direction. The thread Y sent downstream from the upstream thread guide 21 passes between the pair of thread guide members 68 and is guided from top to bottom by the pair of thread guide members 68.

[0061] As shown in Figures 4, 6(a), and 6(b), the holder 7 has a covering portion 71 and a connecting portion 78. The covering portion 71 and the connecting portion 78 are integrally formed. The covering portion 71 is substantially cylindrical. The covering portion 71 is arranged coaxially with the flow path portion 63 of the lubrication guide 6 and can cover the outer circumferential surface of the flow path portion 63. The connecting portion 78 is provided at the other end of the covering portion 71 in the extension direction (right side in Figure 4). The connecting portion 78 has a connecting flow path 79 that is connected to the other end of the lubricant flow path 64 in the extension direction (right side in Figure 4). The connecting flow path 79 extends along the extension direction.

[0062] The oil supplied from the oil tank 70 is sent to the oil flow path 64 of the oil supply guide 6 via the connection flow path 79 of the holder 7. The oil sent to the oil flow path 64 is discharged from the nozzle 61 connected to the end of the oil flow path 64.

[0063] As shown in Figure 8, the flow path portion 63 of the refueling guide 6 has two second spaces 65 that are independent of the oil flow path 64. The second spaces 65 are provided in a part of the circumferential direction. The two second spaces 65 face each other with respect to the arrangement direction, with the oil flow path 64 in between. The second spaces 65 are defined by grooves 66 formed in the flow path portion 63. One groove 66 consists of a bottom surface 66a, which is one plane, and two wall surfaces 66b, which are planes perpendicular to the extension direction. The two wall surfaces 66b are provided at both ends of the bottom surface 66a in the extension direction. The wall surfaces 66b correspond to the "fourth orthogonal plane" of the present invention. The bottom surface 66a is parallel to the extension direction. The bottom surface 66a is a plane that intersects with the circumferential direction. The bottom surface 66a is a plane that extends along the vertical direction. The bottom surfaces 66a of the two second spaces 65 are located on either side of the oil flow path 64 with respect to the alignment direction perpendicular to the extension direction. The second spaces 65 are open on the outer circumferential surface of the flow path section 63.

[0064] As shown in Figure 8, two first spaces 72 are formed in the covering portion 71 of the holder 7. The first spaces 72 are provided in a part of the circumferential direction. The two first spaces 72 are located on both sides of the central axis O of the covering portion 71 with respect to the arrangement direction. The first spaces 72 are defined by through holes 73 that penetrate from the inner surface facing the outer circumferential surface of the flow channel portion 63 to the outer surface opposite the inner surface in the covering portion 71. That is, the first spaces 72 are open on both the inner and outer surfaces of the covering portion 71.

[0065] Each through-hole 73 is composed of two wall surfaces 73a, which are parallel to the extension direction, and two wall surfaces 73b, which are perpendicular to the extension direction. The two wall surfaces 73b are provided at both ends of the wall surface 73a in the extension direction. The wall surfaces 73b correspond to the "third orthogonal plane" of the present invention. The wall surface 73a is a plane that intersects with the circumferential direction. The wall surface 73a is a plane that extends along the vertical direction. The two wall surfaces 73a that constitute the through-hole 73 defining the first space 72 located on the right in Figure 8 are located on a plane S0 perpendicular to the alignment direction. The two wall surfaces 73a that constitute the through-hole 73 defining the first space 72 located on the left in Figure 8 are located on a plane S1 perpendicular to the alignment direction. Planes S0 and S1 are located on either side of the central axis O with respect to the alignment direction.

[0066] The two first spaces 72 can be positioned in a vertical direction, aligned with the two second spaces 65, with the covering portion 71 covering the outer circumferential surface of the flow channel portion 63. As shown in Figure 8, when the second spaces 65 and the first spaces 72 are aligned vertically, one bottom surface 66a of one second space 65 and the two wall surfaces 73a of one first space 72 are located on the same plane (planes S0, S1) perpendicular to the alignment direction.

[0067] As shown in Figure 8, the fixing member 8 is provided with two fitting portions 82 that can be fitted into the second space 65 and the first space 72. Each fitting portion 82 is positioned to straddle the second space 65 and the first space 72, which are aligned in the vertical direction, and is fitted into the second space 65 and the first space 72. The portions of the two fitting portions 82 that are fitted into the second space 65 and the first space 72 face each other with respect to the flow path portion 63 in between in the direction of arrangement. The fixing member 8 fixes the positions of the lubrication guide 6 and the holder 7 by fitting the fitting portions 82 into the second space 65 and the first space 72 and bringing them into contact with the bottom surface 66a and the wall surface 73a. In other words, the fixing member 8 functions as a bolt.

[0068] As shown in Figure 7, the fixing member 8 consists of a first portion 81 on which a fitting portion 82 is formed, and a second portion 83 adjacent to the first portion 81. The first portion 81 and the second portion 83 are arranged vertically. The fixing member 8 has an opening 80 that spans the first portion 81 and the second portion 83. The opening 80 penetrates the fixing member 8, which is a sheet metal member, in the thickness direction. The opening 80 is a closed opening. That is, the opening 80 is not open in a direction perpendicular to the thickness direction of the fixing member 8. The portion of the opening 80 formed in the second portion 83 is larger than the outer shape of the covering portion 71 of the holder 7.

[0069] The fixing member 8 can take on two positions: a first position (see Figure 9(a)) in which the covering portion 71 of the holder 7 is inserted through the portion formed in the first portion 81 of the opening 80, and a second position (see Figure 9(b)) in which the covering portion 71 of the holder 7 is inserted through the portion formed in the second portion 83 of the opening 80. The first position is lower than the second position in the vertical direction. When the fixing member 8 is in the second position, it does not come into contact with the wall surface 73a of the holder 7 and the bottom surface 66a of the lubrication guide 6. Also, when the fixing member 8 is in the second position, it is movable in the extension direction. By moving the fixing member 8 from the second position downward to the first position, the fitting portion 82 can be fitted into the second space 65 and the first space 72 and come into contact with the wall surface 73a of the holder 7 and the bottom surface 66a of the lubrication guide 6. In other words, the direction in which the fitting portion 82 is fitted into the second space 65 and the first space 72 is the vertical direction (linear direction).

[0070] The portion formed in the first portion 81 of the opening 80 extends in the vertical direction. The surface defining the opening 80 in the first portion 81 includes a plane 81a that extends along the vertical direction. As shown in Figure 8, when the two fitting portions 82 are fitted into the second space 65 and the first space 72, this plane 81a contacts the entire bottom surface 66a of each groove 66 and the two wall surfaces 73a of each through hole 73, which are arranged on the same plane.

[0071] When the two fitting portions 82 are not fitted into the second space 65 and the first space 72, the width of the vertically extending portion formed in the first portion 81 of the opening 80 is slightly narrower at its lower end than at its upper end. When the two fitting portions 82 are fitted into the second space 65 and the first space 72, the portion formed in the first portion 81 of the opening 80 is pushed outwards on both sides in the direction of arrangement. As a result, the fixing member 8 can clamp the covering portion 71 from both sides in the direction of arrangement by elastic force when the two fitting portions 82 are fitted into the second space 65 and the first space 72.

[0072] When the two fitting portions 82 of the fixing member 8 are fitted into the second space 65 and the first space 72, the fixing member 8 is fixed in its circumferential position by the wall surface 73a of the first space 72 formed in the holder 7. In other words, the wall surface 73a corresponds to the "first contact surface" of the present invention.

[0073] Specifically, in Figure 8, the movement of the fixing member 8 to one side in the circumferential direction (clockwise) is restricted by the lower of the two wall surfaces 73a of the right-side first space 72 and the upper of the two wall surfaces 73a of the left-side first space 72. Similarly, the movement of the fixing member 8 to the other side in the circumferential direction (counterclockwise) is restricted by the upper of the two wall surfaces 73a of the right-side first space 72 and the lower of the two wall surfaces 73a of the left-side first space 72. This fixes the position of the fixing member 8 in the circumferential direction.

[0074] The bottom surface 66a of the second space 65 formed in the fuel supply guide 6 contacts the two fitting portions 82 of the fixing member 8, whose position in the circumferential direction is fixed, thereby fixing the circumferential position of the fuel supply guide 6. In other words, the bottom surface 66a corresponds to the "second contact surface" of the present invention. Furthermore, the bottom surface 66a corresponds to the "flow channel side contact surface" of the present invention.

[0075] Specifically, as shown in Figure 8, the movement of the fuel guide 6 to one side in the circumferential direction (the direction of the arrow indicated by D1 in the figure: clockwise) is restricted by the plane 81a of the right-side fitting portion 82 contacting the upper portion of the bottom surface 66a of the right-side second space 65, and the plane 81a of the left-side fitting portion 82 contacting the lower portion of the bottom surface 66a of the left-side second space 65. The upper portion of the bottom surface 66a of the right-side second space 65 and the lower portion of the bottom surface 66a of the left-side second space 65 both face one side in the circumferential direction.

[0076] Furthermore, the movement of the fuel guide 6 to the other side in the circumferential direction (the direction of the arrow indicated by D2 in the figure: counterclockwise) is restricted by the fact that the plane 81a of the right-side fitting portion 82 contacts the lower part of the bottom surface 66a of the right-side second space 65, and the plane 81a of the left-side fitting portion 82 contacts the upper part of the bottom surface 66a of the left-side second space 65. Both the lower part of the bottom surface 66a of the right-side second space 65 and the upper part of the bottom surface 66a of the left-side second space 65 face the other side in the circumferential direction. As a result, the position of the fuel guide 6 in the circumferential direction is fixed.

[0077] Furthermore, when the two fitting portions 82 of the fixing member 8 are fitted into the second space 65 and the first space 72, the movement of the fixing member 8 on both sides in the arrangement direction is restricted by the bottom surface 66a of the second space 65 and the wall surface 73a of the first space 72. That is, the movement of the fixing member 8 to one side in the arrangement direction (the right side in Figure 8) is restricted by the bottom surface 66a of the second space 65 and the two wall surfaces 73a of the first space 72 on the left side in Figure 8. The movement of the fixing member 8 to the other side in the arrangement direction (the left side in Figure 8) is restricted by the bottom surface 66a of the second space 65 and the two wall surfaces 73a of the first space 72 on the right side in Figure 8.

[0078] Here, let L1 (see Figure 5(b)) be the length of the second space 65 of the fuel guide 6 in the extension direction (distance between the two wall surfaces 66b), L2 (see Figure 6(b)) be the length of the first space 72 of the holder 7 in the extension direction (distance between the two wall surfaces 73b), and L3 (see Figure 4) be the length of the fitting portion 82 in the extension direction (thickness of the fixing member 8). In this case, lengths L1, L2, and L3 are substantially the same. More specifically, the length L1 of the second space 65 and the length L2 of the first space 72 are such that the fitting portion 82 fits snugly into the second space 65 and the first space 72 in the extension direction. Both end faces in the extension direction of the fitting portion 82 fitted into the second space 65 and the first space 72 are in contact with the wall surface 66b of the second space 65 and the wall surface 73b of the first space 72. In other words, the fitting portion 82 is sandwiched between the two wall surfaces 66b of the second space 65 from both sides in the extension direction, and also sandwiched between the two wall surfaces 73b of the first space 72.

[0079] As shown in Figure 5(b), two protrusions 67 are provided at one end of the flow path 63 of the fuel supply guide 6 in the extension direction. One of the two protrusions 67 is provided at the upper part of the flow path 63 and protrudes upward from the outer circumferential surface of the flow path 63. The other of the two protrusions 67 is provided at the lower part of the flow path 63 and protrudes downward from the outer circumferential surface of the flow path 63.

[0080] As shown in Figure 6(a), two notches 74 are provided at one end of the covering portion 71 of the holder 7 in the direction of extension. The two notches 74 form a recessed area in the edge of the covering portion 71 with respect to the direction of extension. That is, the notches 74 correspond to the "recess" of the present invention. One of the two notches 74 is provided at the top of the covering portion 71. The other of the two notches 74 is provided at the bottom of the covering portion 71. Two projections 67 provided on the lubrication guide 6 are fitted into the two notches 74 provided on the holder 7, respectively.

[0081] As shown in Figure 4, an annular packing 9 is positioned between the lubrication guide 6 and the holder 7. The packing 9 seals the entire circumference between the lubrication guide 6 and the holder 7. The packing 9 is made of an elastic material such as rubber. With respect to the stretching direction, the packing 9 is positioned between the connecting end 79a, which is connected to the other end (right side in Figure 4) of the oil flow path 64 in the connecting flow path 79, and the first space 72. A groove 76 is provided on the inner surface of the covering portion 71 of the holder 7, extending around the entire circumference of the covering portion 71. The groove 76 is provided between the connecting surface 78a, into which the connecting end 79a of the connecting flow path 79 opens, and the first space 72. The packing 9 is positioned in the groove 76.

[0082] (Characteristics of the first embodiment) As described above, in the false twisting machine 1 of this embodiment, the lubrication device 20 has a holder 7 attached to the support frame 19, a discharge port 61a for discharging lubricant, a pair of yarn guide members 68 which are arranged on both sides of the discharge port 61a in a direction perpendicular to the yarn running direction and guide the yarn Y, and a lubrication guide 6 which is detachable from the holder 7, a fixing member 8 which fixes the lubrication guide 6 to the holder 7, and a packing 9 which is arranged between the lubrication guide 6 and the holder 7. ,of The fuel supply guide 6 has a cylindrical flow path portion 63 in which an oil flow path 64 is formed. The holder 7 is arranged coaxially with the flow path portion 63 and has a cylindrical covering portion 71 capable of covering the outer circumferential surface of the flow path portion 63. The holder 7 is also provided with a wall surface 73a that can contact the fixing member 8, and the fuel supply guide 6 is provided with a bottom surface 66a that can contact the fixing member 8. The wall surface 73a is a surface that fixes the position of the fixing member 8 in the circumferential direction of the flow path portion 63 by contacting the fixing member 8, whose position in the circumferential direction is fixed by the wall surface 73a, thereby fixing the position of the fuel supply guide 6 in the circumferential direction.

[0083] According to the above configuration, by inserting the flow channel 63 into the covering portion 71 and covering the outer surface of the flow channel 63 with the covering portion 71, the position of the lubrication guide 6 can be fixed in a plane perpendicular to the extension direction of the flow channel 63 (i.e., a plane parallel to both the vertical and arrangement directions). Therefore, by covering the outer surface of the flow channel 63 with the covering portion 71, the reproducibility of the position of the lubrication guide 6 relative to the thread path can be ensured. In addition, by bringing the fixing member 8 into contact with the wall surface 73a of the holder 7 and the bottom surface 66a of the lubrication guide 6, the position of the lubrication guide 6 in the circumferential direction can be fixed, and the reproducibility of the orientation of the lubrication guide 6 can be ensured. Furthermore, by covering the outer surface of the flow channel 63 with the covering portion 71 and bringing the fixing member 8 into contact with the wall surface 73a of the holder 7 and the bottom surface 66a of the lubrication guide 6, the lubrication guide 6 can be easily fixed.

[0084] Furthermore, in the false twisting machine 1 of this embodiment, the holder 7 has a recessed notch 74 in the direction of stretching, and the lubrication guide 6 is provided with a projection 67 that can be fitted into the notch 74. Therefore, by fitting the projection 67 of the lubrication guide 6 into the notch 74 of the holder 7, it is possible to assist in the alignment of the lubrication guide 6 and the holder 7 in the circumferential direction.

[0085] In addition, in the false twisting machine 1 of this embodiment, the bottom surface 66a of the oil supply guide 6, which is the contact surface with the fixing member 8, is arranged on both sides of the oil flow path 64 with respect to the arrangement direction perpendicular to the stretching direction. From the viewpoint of improving the accuracy of the reproducibility of the posture of the oil supply guide 6, it is preferable to secure a large contact surface (the surface corresponding to the "second contact surface" of the present invention) of the oil supply guide 6 with the fixing member 8. If the oil supply guide 6 is processed to form a contact surface with the fixing member 8, and this process results in sharp angles or thin sections, the oil supply guide 6 may be damaged or oil leakage may occur due to processing errors. In particular, since the oil supply guide 6 of this embodiment is made of ceramics, there is a high possibility of damage. Therefore, high-precision processing is required. In the fixing structure of this embodiment, a large bottom surface 66a, which is the contact surface with the fixing member 8, can be secured with easy processing, and the accuracy of the reproducibility of the posture of the oil supply guide 6 can be improved.

[0086] Furthermore, in the false twisting machine 1 of this embodiment, the bottom surface 66a of the lubrication guide 6 and the wall surface 73a of the holder 7 can be arranged on the same plane, and the fixing member 8 has a surface 81a that contacts the bottom surface 66a of the lubrication guide 6 and the wall surface 73a of the holder 7, which are arranged on the same plane. Therefore, the shape of the fixing member 8 can be simplified.

[0087] In addition, in the false twisting machine 1 of this embodiment, the length of the second space 65 in the stretching direction (distance between the two wall surfaces 66b) L1 and the length of the first space 72 in the stretching direction (distance between the two wall surfaces 73b) L2 are substantially the same as the length of the fitting portion 82 in the stretching direction L3. Therefore, the fitting portion 82 fitted into the second space 65 and the first space 72 is sandwiched from both sides in the stretching direction by the wall surface 66b of the lubrication guide 6 and also sandwiched from both sides in the stretching direction by the wall surface 73b of the holder 7. This determines the positions of the lubrication guide 6 and the holder 7 in the stretching direction.

[0088] Furthermore, in the false twisting machine 1 of this embodiment, a groove 76 for positioning the packing 9 is formed on the inner surface of the covering portion 71 of the holder 7. Therefore, the packing 9 is less likely to move when the lubrication guide 6 is moved relative to the holder 7.

[0089] Furthermore, in the false twisting machine 1 of this embodiment, the wall surface 73a formed on the holder 7 and the bottom surface 66a formed on the lubrication guide 6 are respectively positioned on both sides of the central axis O of the covering portion 71 with respect to the arrangement direction perpendicular to the stretching direction. The fixing member 8 is made of an elastic material and, by contacting the wall surface 73a and the bottom surface 66a positioned on both sides of the central axis O with respect to the arrangement direction, the elastic force clamps the flow channel portion 63 from both sides in the arrangement direction. Therefore, the fixing member 8 is difficult to move, and the positions of the lubrication guide 6 and the holder 7 can be stably fixed.

[0090] Furthermore, in the false twisting machine 1 of this embodiment, the fixing member 8 consists of a first portion 81 having a fitting portion 82 that contacts the wall surface 73a of the holder 7 and the bottom surface 66a of the lubrication guide 6, and a second portion 83 adjacent to the first portion 81, with an opening 80 spanning the first portion 81 and the second portion 83. The portion formed in the second portion 83 of the opening 80 is larger than the outer shape of the covering portion 71 of the holder 7. The fixing member 8 can take on a first position in which the covering portion 71 of the holder 7 is inserted through the portion formed in the first portion 81 of the opening 80 and the fitting portion 82 contacts the wall surface 73a and the bottom surface 66a, and a second position in which the covering portion 71 of the holder 7 is inserted through the portion formed in the second portion 83 of the opening 80 and does not contact the wall surface 73a and the bottom surface 66a. Therefore, the refueling guide 6 and the holder 7 can be fixed by setting the fixing member 8 to the first position, and the fixing of the refueling guide 6 and the holder 7 can be released by setting the fixing member 8 to the second position. Even when the fixing of the refueling guide 6 and the holder 7 is released, the covering portion 71 of the holder 7 remains inserted through the opening 80 of the fixing member 8, so the loss of the fixing member 8 can be avoided.

[0091] Furthermore, in the false twisting machine 1 of this embodiment, the first position of the fixing member 8 is lower than the second position in the vertical direction. Therefore, unless the fixing member 8 is lifted by external force, gravity will cause it to be in the first position that fixes the lubrication guide 6 and the holder 7. Thus, it is possible to prevent the fixing member 8 from unintentionally moving from the first position to the second position, which would release the fixing between the lubrication guide 6 and the holder 7.

[0092] In addition, in the false twisting machine 1 of this embodiment, the wall surface 73a corresponding to the first contact surface and the bottom surface 66a corresponding to the second contact surface are flat. Therefore, compared to cases such as when the fitting portion 82 is a screw and the first and second contact surfaces are surfaces that define screw grooves, the processing of the holder 7 and the lubrication guide 6 is easier.

[0093] Furthermore, in the false twisting machine 1 of this embodiment, the oil supply guide 6 is made of ceramics. For example, if the fitting portion 82 is a screw and the oil supply guide 6 is made of ceramics, there is a risk that the oil supply guide 6 may crack when the fitting portion 82 of the fixing member 8 is fitted into the second space 65 of the oil supply guide 6 to fix the position of the oil supply guide 6. In this embodiment, even if the oil supply guide 6 is made of ceramics, it is possible to suppress the cracking of the oil supply guide 6.

[0094] Furthermore, in the false twisting machine 1 of this embodiment, an annular packing 9 is placed between the oil supply guide 6 and the holder 7. Therefore, a single packing 9 can seal the entire circumference between the oil supply guide 6 and the holder 7. Thus, the packing 9 is easy to manufacture.

[0095] Furthermore, in the false twisting machine 1, additional oil is applied to the yarn Y which already has oil attached, so the required amount of oil applied to the yarn Y is small. The oil supply guide 6 can reduce the amount of oil applied to the yarn Y to a relatively small amount. Therefore, it is preferable to apply the oil supply device 20 having the oil supply guide 6 to the false twisting machine 1. According to this embodiment, when the oil supply device 20 having the oil supply guide 6 is applied to the false twisting machine 1, the reproducibility of the position and orientation of the oil supply guide 6 with respect to the yarn path can be easily ensured.

[0096] In addition, the false twisting machine 1 of this embodiment is equipped with an upstream yarn guide 21 and a downstream yarn guide 22 that are spaced apart in the direction in which the yarn Y travels. The holder 7 is located between the upstream yarn guide 21 and the downstream yarn guide 22. Therefore, Upstream thread guide 21 and downstream thread guide 22 This ensures the reproducibility of the position and orientation of the lubrication guide 6 relative to the thread path of the thread Y guided by the lubrication guide 6, and allows for easy fixing of the lubrication guide 6.

[0097] <Second Embodiment> Next, with reference to Figure 10, the fixing structure of the fuel supply guide 6 according to the second embodiment of the present invention will be described. In this embodiment, the configuration of the first space 72 and the fixing member 8 provided in the holder 7 mainly differs from that of the first embodiment. Hereinafter, components common to the first embodiment will be denoted by the same reference numerals and their descriptions will be omitted as appropriate.

[0098] In the first embodiment, two first spaces 72 are formed in the holder 7. The two wall surfaces 73a that constitute a through hole 73 defining one of the first spaces 72 are located on a plane (planes S0, S1) perpendicular to the arrangement direction. On the other hand, in this embodiment, four first spaces 72 are formed in the holder 7. The two wall surfaces 73a (planes intersecting the circumferential direction) that constitute a through hole 73 defining one of the first spaces 72 are facing each other with respect to the arrangement direction.

[0099] With the covering portion 71 covering the outer circumferential surface of the flow channel portion 63, two of the four first spaces 72 can be positioned above and below one of the two second spaces 65, respectively. At the same time, the remaining two of the four first spaces 72 can be positioned above and below the other of the two second spaces 65, respectively. In this case, one bottom surface 66a of one second space 65, one wall surface 73a of the first space 72 located above the second space 65, and one wall surface 73a of the first space 72 located below the second space 65 are located on a plane S2 perpendicular to the direction of arrangement. Furthermore, of the wall surfaces 73a of the two first spaces 72 located above and below the second space 65, the wall surfaces 73a that are not located on plane S2 are located on a plane S3 perpendicular to the direction of arrangement.

[0100] The fixing member 8 of this embodiment has two fitting portions 82 and a connecting portion 183 that connects the two fitting portions 82. The fitting portions 82 are rod-shaped. The two fitting portions 82 have parallel longitudinal directions. The connecting portion 183 connects one end of the two fitting portions 82 in the longitudinal direction.

[0101] The two fitting portions 82 are fitted into the second space 65 and the first space 72 with the side connected by the connecting portion 183 facing upward. Each fitting portion 82 is fitted across the second space 65 and the two first spaces 72 located above and below the second space 65, respectively. Two opposing wall surfaces 73a in one of the first spaces 72, with respect to the alignment direction, are in contact with both end faces of the fitting portion 82 fitted into the first space 72 in the alignment direction.

[0102] When the two fitting portions 82 of the fixing member 8 are fitted into the second space 65 and the first space 72, the fixing member 8 is fixed in its circumferential position by the wall surface 73a of the first space 72 formed in the holder 7. At this time, the portion of the fitting portion 82 fitted into each first space 72 is sandwiched from both sides in the circumferential direction by the two wall surfaces 73a of each first space 72. In other words, the wall surface 73a corresponds to the "first contact surface" of the present invention. The bottom surface 66a of the second space 65 formed in the fuel guide 6 contacts the two fitting portions 82 of the fixing member 8, which are in a state where their circumferential position is fixed, thereby fixing the circumferential position of the fuel guide 6. In other words, the bottom surface 66a corresponds to the "second contact surface" of the present invention.

[0103] Furthermore, when the two fitting portions 82 of the fixing member 8 are fitted into the second space 65 and the first space 72, each fitting portion 82 is sandwiched in the direction of arrangement by the bottom surface 66a of the second space 65 and the two wall surfaces 73a of the two first spaces 72, both of which are located on the plane S2, and the two wall surfaces 73a of the two first spaces 72, both of which are located on the plane S3. As a result, the movement of the fixing member 8 in the direction of arrangement is restricted on both sides.

[0104] In this embodiment, the two fitting portions 82 provided on the fixing member 8 may be separate. That is, the fixing member 8 may be divided into two parts, and each fixing member 8 may be provided with a fitting portion 82. As described above, each fitting portion 82 is sandwiched in the direction of arrangement by the bottom surface 66a of the second space 65 located on the plane S2 and the two wall surfaces 73a of the two first spaces 72, and the two wall surfaces 73a of the two first spaces 72 located on the plane S3. Therefore, even when the fixing member 8 is divided into two parts, the movement of each fixing member 8 on both sides in the direction of arrangement is restricted. Thus, the fixing member 8 may be divided into multiple parts, each of which has its movement on both sides in the direction of arrangement restricted.

[0105] (Features of the second embodiment) As described above, in this embodiment, the positional reproducibility of the refueling guide 6 can be easily ensured, similar to the first embodiment.

[0106] Furthermore, in this embodiment, the through hole 73 defining one first space 72 has two wall surfaces 73a that sandwich the fitting portion 82 from both sides in the circumferential direction. As a result, the position of the fixing member 8 in the circumferential direction is fixed when the fitting portion 82 is fitted into one first space 72.

[0107] <Third Embodiment> Next, with reference to Figure 11, the fixing structure of the fuel guide 6 according to the third embodiment of the present invention will be described. In this embodiment, the configuration of the second space 65 provided in the fuel guide 6, the first space 72 provided in the holder 7, and the fixing member 8 mainly differ from those of the first embodiment. Hereinafter, components common to the first embodiment will be denoted by the same reference numerals and their descriptions will be omitted as appropriate.

[0108] In the first embodiment, two second spaces 65 are formed in the fuel guide 6. A groove 66 defining one of the second spaces 65 is composed of one bottom surface 66a and two wall surfaces 66b perpendicular to the extension direction. In this embodiment, however, one second space 65 is formed in the fuel guide 6. The second space 65 is defined by a hole 266. The hole 266 has one bottom surface 66a and two wall surfaces 66b perpendicular to the extension direction, as well as two wall surfaces 266c parallel to the extension direction. The two wall surfaces 266c face each other with respect to the alignment direction.

[0109] Furthermore, in the first embodiment, two first spaces 72 are formed in the holder 7. The two wall surfaces 73a of one first space 72 are located on a plane (planes S0, S1) perpendicular to the arrangement direction. On the other hand, in this embodiment, one first space 72 is formed in the holder 7. The two wall surfaces 73a (surfaces intersecting the circumferential direction) of one first space 72 are opposite each other with respect to the arrangement direction.

[0110] With the covering portion 71 covering the outer surface of the flow channel portion 63, the first space 72 can be positioned above the second space 65. At this time, one of the two wall surfaces 266c of the second space 65 (right side in Figure 11) and one of the two wall surfaces 73a of the first space 72 (right side in Figure 11) are located on a plane S4 perpendicular to the direction of arrangement. The other of the two wall surfaces 266c (left side in Figure 11) and the other of the two wall surfaces 73a (left side in Figure 11) are located on a plane S5 perpendicular to the direction of arrangement.

[0111] The fixing member 8 of this embodiment has one fitting portion 82. The fitting portion 82 is rod-shaped. A top portion 283 is provided at one end of the fitting portion 82 in the longitudinal direction. The fitting portion 82 is fitted into the second space 65 and the first space 72 in a position with the top portion 283 facing upward. The fitting portion 82 is fitted across the second space 65 and the first space 72. Two opposing wall surfaces 266c in the second space 65 with respect to the arrangement direction and two opposing wall surfaces 73a in the first space 72 with respect to the arrangement direction contact both end faces of the fitting portion 82 in the arrangement direction. In addition, the bottom surface 66a of the second space 65 contacts the end of the fitting portion 82 opposite to the side on which the top portion 283 is provided with respect to the longitudinal direction.

[0112] When the fitting portion 82 of the fixing member 8 is fitted into the second space 65 and the first space 72, the position of the fixing member 8 in the circumferential direction is fixed by the wall surface 73a of the first space 72 formed in the holder 7. At this time, the fitting portion 82 is sandwiched from both sides in the circumferential direction by the two wall surfaces 73a of one of the first spaces 72. That is, the wall surface 73a corresponds to the "first contact surface" of the present invention. Also at this time, the two wall surfaces 266c of the second space 65 sandwich the fitting portion 82 from both sides in the circumferential direction. The two wall surfaces 266c of one of the second spaces 65 formed in the fuel guide 6 contact the fitting portion 82 of the fixing member 8, which is in a state where its position in the circumferential direction is fixed, thereby fixing the position of the fuel guide 6 in the circumferential direction. That is, the wall surface 266c corresponds to the "second contact surface" of the present invention.

[0113] Furthermore, when the fitting portion 82 of the fixing member 8 is fitted into the second space 65 and the first space 72, the fitting portion 82 is sandwiched in the direction of arrangement by the wall surface 266c of the second space 65 and the wall surface 73a of the first space 72, both of which are located on the plane S4, and the wall surface 266c of the second space 65 and the wall surface 73a of the first space 72, both of which are located on the plane S5. As a result, the movement of the fixing member 8 on both sides in the direction of arrangement is restricted.

[0114] (Characteristics of the third embodiment) As described above, in this embodiment, the positional reproducibility of the refueling guide 6 can be easily ensured, similar to the first embodiment.

[0115] Furthermore, in this embodiment, the through hole 73 defining one first space 72 has two wall surfaces 73a that sandwich the fitting portion 82 from both sides in the circumferential direction. As a result, the position of the fixing member 8 in the circumferential direction is fixed when one fitting portion 82 is fitted into the first space 72.

[0116] Furthermore, in this embodiment, the wall surface 266c defining one second space 65 contacts the fitting portion 82 of the fixing member 8, thereby fixing the circumferential position of the fuel supply guide 6. Therefore, by fitting the fitting portion 82 into one second space 65, the circumferential position of the fuel supply guide 6 can be fixed.

[0117] <Fourth Embodiment> Next, with reference to Figure 12, the fixing structure of the fuel guide 6 according to the fourth embodiment of the present invention will be described. In this embodiment, the configuration of the second space 65 provided in the fuel guide 6, the first space 72 provided in the holder 7, and the fixing member 8 mainly differ from those of the first embodiment. Hereinafter, components common to the first embodiment will be denoted by the same reference numerals and their descriptions will be omitted as appropriate.

[0118] In the first embodiment, two second spaces 65 are formed in the fuel guide 6. The groove 66 defining one of the second spaces 65 consists of one bottom surface 66a and two wall surfaces 66b perpendicular to the extension direction. On the other hand, in this embodiment, one second space 65 is formed in the fuel guide 6. The second space 65 is defined by a hole 366. The hole 366 has one bottom surface 66a and two wall surfaces 66b perpendicular to the extension direction, as well as two wall surfaces 366c parallel to the extension direction. The two wall surfaces 366c face each other with respect to the alignment direction.

[0119] Furthermore, in the first embodiment, two first spaces 72 are formed in the holder 7. The first spaces 72 are defined by through holes 73. On the other hand, in this embodiment, the first spaces 72 are defined by grooves 373. Each groove 373 consists of one bottom surface 373a and two wall surfaces 73b perpendicular to the extension direction. In addition, the covering portion 71 of the holder 7 has through holes 375 formed in addition to the grooves 373 that define the first spaces 72.

[0120] With the covering portion 71 covering the outer circumferential surface of the flow channel portion 63, the through hole 375 can be positioned above the second space 65. In this case, the two first spaces 72 are located on either side of the through hole 375 with respect to the arrangement direction.

[0121] The fixing member 8 of this embodiment has three fitting portions 82 and a connecting portion 383 that connects the three fitting portions 82. The fitting portions 82 are rod-shaped. The three fitting portions 82 have parallel longitudinal directions. The three fitting portions 82 are arranged in an orthogonal direction perpendicular to their longitudinal direction. The connecting portion 383 connects one end of the three fitting portions 82 in the longitudinal direction to each other. Of the three fitting portions 82 arranged in an orthogonal direction, the two fitting portions 82 located at the ends are the same length. Of the three fitting portions 82 arranged in an orthogonal direction, the fitting portion 82 located in the center is shorter than the other two fitting portions 82.

[0122] The three fitting portions 82 are fitted into the second space 65 and the first space 72 with the side connected by the connecting portion 383 facing upwards. Of the three fitting portions 82 arranged in orthogonal directions, the two at the ends are fitted into the two first spaces 72, respectively. The fitting portions 82 make full contact with the bottom surface 373a of the first space 72. Of the three fitting portions 82 arranged in orthogonal directions, the central fitting portion 82 is fitted into the second space 65 through the through hole 375.

[0123] When the three fitting portions 82 of the fixing member 8 are fitted into the second space 65 and the first space 72, the position of the fixing member 8 in the circumferential direction is fixed by the bottom surfaces 373a of the two first spaces 72 formed in the holder 7. That is, the bottom surfaces 373a correspond to the "first contact surface" of the present invention. At this time, the two wall surfaces 366c of the second space 65 sandwich the fitting portion 82 from both sides in the circumferential direction. The two wall surfaces 366c of the one second space 65 formed in the fuel guide 6 fix the position of the fuel guide 6 in the circumferential direction by contacting the fitting portion 82 of the fixing member 8, which is in a state where its position in the circumferential direction is fixed. That is, the wall surfaces 366c correspond to the "second contact surface" of the present invention. Note that the wall surface of the through hole 375 does not contact the fitting portion 82.

[0124] Furthermore, when the three fitting portions 82 of the fixing member 8 are fitted into the second space 65 and the first space 72, the movement of the fixing member 8 on both sides in the arrangement direction is restricted by the two wall surfaces 366c of the second space 65 and the bottom surface 373a of the first space 72. That is, the movement of the fixing member 8 to one side in the arrangement direction (the right side in Figure 12) is restricted by the rightmost of the two wall surfaces 366c of the second space 65 and the bottom surface 373a of the first space 72 located on the left side in Figure 12. The movement of the fixing member 8 to the other side in the arrangement direction (the left side in Figure 12) is restricted by the leftmost of the two wall surfaces 366c of the second space 65 and the bottom surface 373a of the first space 72 located on the right side in Figure 12.

[0125] In this embodiment, of the three fitting portions 82 provided on the fixing member 8, the fitting portion 82 that fits into the second space 65 may be separate from the two fitting portions 82 that fit into the first space 72. That is, the fixing member 8 may be divided into two parts, with one fixing member 8 having a fitting portion 82 that fits into the second space 65, and the other fixing member 8 having two fitting portions 82 that fit into the first space 72. The fixing member 8 having a fitting portion 82 that fits into the second space 65 has its movement restricted on both sides in the direction of arrangement by the two wall surfaces 366c of the second space 65. The fixing member 8 having two fitting portions 82 that fit into the first space 72 has its movement restricted on both sides in the direction of arrangement by the bottom surfaces 373a of the two first spaces 72. Thus, the fixing member 8 may be divided into multiple parts, each with restricted movement on both sides in the direction of arrangement.

[0126] (Features of the fourth embodiment) As described above, in this embodiment, the positional reproducibility of the refueling guide 6 can be easily ensured, similar to the first embodiment.

[0127] Furthermore, in this embodiment, the wall surface 366c defining one second space 65 contacts the fitting portion 82 of the fixing member 8, thereby fixing the circumferential position of the fuel guide 6. Therefore, by fitting the fitting portion 82 into one second space 65, the circumferential position of the fuel guide 6 can be fixed.

[0128] <Fifth Embodiment> Next, with reference to Figure 13, the fixing structure of the fuel guide 6 according to the fifth embodiment of the present invention will be described. In this embodiment, the configuration of the second space 65 provided in the fuel guide 6 and the first space 72 provided in the holder 7 mainly differ from that of the first embodiment. Hereinafter, components common to the first embodiment will be denoted by the same reference numerals and their descriptions will be omitted as appropriate.

[0129] In the first embodiment, two second spaces 65 are formed in the lubrication guide 6. Also, two first spaces 72 defined by through holes 73 are formed in the holder 7. On the other hand, in this embodiment, one second space 65 is formed in the lubrication guide 6. Also, one first space 72 defined by a through hole 73 and one first space 72 defined by a groove 473 are formed in the holder 7. The two first spaces 72 are located on both sides of the central axis O of the covering portion 71 with respect to the arrangement direction.

[0130] The first space 72 defined by the through hole 73 can be positioned in a location aligned with the second space 65 in the vertical direction, with the covering portion 71 covering the outer circumferential surface of the flow channel portion 63. One of the two fitting portions 82 of the fixing member 8 spans the second space 65 and the first space 72 and is fitted into the second space 65 and the first space 72 which are aligned in the vertical direction. The other of the two fitting portions 82 of the fixing member 8 is fitted into the first space 72 defined by the groove 473. The fitting portion 82 fitted into the first space 72 is in contact with the entire bottom surface 473a parallel to the extension direction of the groove 473 defining the first space 72.

[0131] When the two fitting portions 82 of the fixing member 8 are fitted into the second space 65 and the first space 72, the position of the fixing member 8 in the circumferential direction is fixed by the two wall surfaces 73a of the first space 72 defined by the through hole 73 formed in the holder 7, and the bottom surface 473a of the first space 72 defined by the groove 473. That is, the wall surfaces 73a and the bottom surface 473a correspond to the "first contact surface" of the present invention. The bottom surface 66a of the second space 65 formed in the fuel guide 6 contacts the fitting portion 82 of the fixing member 8, which is in a state where its position in the circumferential direction is fixed, thereby fixing the position of the fuel guide 6 in the circumferential direction. That is, the bottom surface 66a corresponds to the "second contact surface" of the present invention.

[0132] Furthermore, when the two fitting portions 82 of the fixing member 8 are fitted into the second space 65 and the first space 72, the movement of the fixing member 8 on both sides in the alignment direction is restricted by one bottom surface 66a of the groove 66 defining the second space 65, the two wall surfaces 73a of the through hole 73 defining the first space 72, and one bottom surface 473a of the groove 473 defining the first space 72.

[0133] (Features of the fifth embodiment) As described above, in this embodiment, the positional reproducibility of the refueling guide 6 can be easily ensured, similar to the first embodiment.

[0134] <Sixth Embodiment> Next, with reference to Figure 14, the fixing structure of the fuel supply guide 6 according to the sixth embodiment of the present invention will be described. In this embodiment, the arrangement of the packing 9 differs mainly from that of the first embodiment. Hereinafter, components common to the first embodiment will be denoted by the same reference numerals and their descriptions will be omitted as appropriate.

[0135] In the first embodiment, the packing 9 is positioned in a groove 76 formed on the inner surface of the covering portion 71 of the holder 7. In this embodiment, however, the packing 9 is positioned between the end face 63a (right end face in Figure 14) where one end of the oil flow path 64 in the flow path portion 63 of the oil supply guide 6 is open, and the connecting surface 78a where the connecting end 79a of the connecting flow path 79 in the connecting portion 78 of the holder 7 is open. The connecting surface 78a has an annular groove 576 formed on the other side in the extension direction. The packing 9 is positioned in this groove 576. As a result, when the flow path portion 63 of the oil supply guide 6 is pushed into the covering portion 71 of the holder 7, the packing 9 biases the oil supply guide 6 to one side in the extension direction by its repulsive force.

[0136] Here, let L4 be the length of the second space 65 of the fuel guide 6 in the extension direction, L5 be the length of the first space 72 of the holder 7 in the extension direction, and L6 be the length of the fitting portion 82 in the extension direction (thickness of the fixing member 8). In this case, lengths L4 and L5 are longer than length L6.

[0137] When the fitting portion 82 of the fixing member 8 is fitted across the second space 65 and the first space 72 and contacts the bottom surface 66a of the lubrication guide 6 and the wall surface 73a of the holder 7, the wall surface 66b (a surface perpendicular to the extension direction) of the second space 65 of the lubrication guide 6 contacts the other side of the fitting portion 82 in the extension direction. More specifically, one of the two wall surfaces 66b of the second space 65 that faces one side in the extension direction (the surface facing the opposite side from the connecting portion 78: corresponding to the "second orthogonal surface" of the present invention) contacts the fitting portion 82. Also, the wall surface 73b (a surface perpendicular to the extension direction) of the first space 72 of the holder 7 contacts the one side of the fitting portion 82 in the extension direction. More specifically, one of the two wall surfaces 73b of the first space 72, the one facing the other side in the extension direction (the one facing the connection portion 78: corresponding to the "first orthogonal surface" of the present invention), contacts the fitting portion 82. That is, the fitting portion 82 is sandwiched from both sides in the extension direction by the one wall surface 66b of the second space 65 facing the one side in the extension direction and the one wall surface 73b of the first space 72 facing the other side in the extension direction. The lubrication guide 6 is biased by the packing 9 so that the wall surface 66b facing the one side in the extension direction approaches the wall surface 73b facing the other side in the extension direction.

[0138] (Features of the sixth embodiment) As described above, in this embodiment, the positional reproducibility of the refueling guide 6 can be easily ensured, similar to the first embodiment.

[0139] Furthermore, in this embodiment, the lubrication guide 6 is biased by the packing 9 so that the surface of the two wall surfaces 66b of the second space 65 facing one side in the extension direction approaches the surface of the two wall surfaces 73b of the first space 72 facing the other side in the extension direction. Therefore, by sandwiching the fitting portion 82 of the fixing member 8 between the wall surface 66b facing one side in the extension direction and the wall surface 73b facing the other side in the extension direction, the positioning of the lubrication guide 6 and the holder 7 in the extension direction can be accurately performed without requiring precise processing or the like.

[0140] Although embodiments of the present invention have been described above with reference to the drawings, it should be understood that the specific configurations are not limited to these embodiments. The scope of the present invention is indicated by the claims rather than the above description of embodiments, and all modifications within the meaning and scope equivalent to the claims are included.

[0141] In other words, in the first embodiment described above, there are two second spaces 65 and two first spaces 72. One bottom surface 66a of one second space 65 and two wall surfaces 73a of one first space 72 are located on a single plane S0. The other bottom surface 66a of the other second space 65 and two wall surfaces 73a of the other first space 72 are located on a single plane S1. Planes S0 and S1 are both planes perpendicular to the arrangement direction. However, the embodiment is not limited to this.

[0142] In other words, in the first modified example of the first embodiment shown in Figure 15, the plane S6 on which one bottom surface 66a of the second space 65 on one side (to the right in the figure) and the two wall surfaces 73a of the first space 72 on the other side (to the right in the figure) are located is inclined with respect to a plane perpendicular to the direction of arrangement. More specifically, the plane S6 is a plane parallel to the direction of extension, and is inclined such that the upper of the two wall surfaces 73a is located on the other side of the direction of arrangement than the lower wall surface 73a.

[0143] Furthermore, the plane S7 on which one bottom surface 66a of the second space 65 (on the other side, to the left in the figure) and the two wall surfaces 73a of the first space 72 (on the other side, to the left in the figure) are located is also inclined with respect to a plane perpendicular to the direction of arrangement. More specifically, plane S7 is a plane parallel to the direction of extension, and is inclined such that the upper of the two wall surfaces 73a is located on one side of the direction of arrangement than the lower wall surface 73a.

[0144] Furthermore, while the first embodiment described above described a case in which the fitting portion 82 fitted into the second space 65 and the first space 72 contacts one bottom surface 66a of the second space 65 and two wall surfaces 73a of the first space 72, the invention is not limited to this case.

[0145] In other words, in the second modified example of the first embodiment shown in Figure 16, the fitting portion 82 fitted into the second space 65 and the first space 72 contacts the upper part of one of the bottom surfaces 66a of the second space 65 and the upper of the two wall surfaces 73a of the first space 72. That is, the lower part of the bottom surface 66a and the lower of the two wall surfaces 73a of the first space 72 do not contact the fitting portion 82.

[0146] In the second modified example of the first embodiment, the movement of the fuel supply guide 6 to one side in the circumferential direction (clockwise) is restricted by the fitting portion 82, which is fitted into the second space 65 and the first space 72 on the right side of Figure 16, contacting the upper portion of the bottom surface 66a. Furthermore, the movement of the fuel supply guide 6 to the other side in the circumferential direction (counterclockwise) is restricted by the fitting portion 82, which is fitted into the second space 65 and the first space 72 on the left side of Figure 16, contacting the upper portion of the bottom surface 66a.

[0147] Similarly, in the second embodiment, the case in which each fitting portion 82 is fitted across the second space 65 and the two first spaces 72 located above and below the second space 65, respectively, was described, but the invention is not limited to this. That is, the fitting portion 82 may be fitted across only the second space 65 and the first space 72 located above the second space 65.

[0148] Furthermore, in the third embodiment, the case in which the fitting portion 82, which is fitted across the second space 65 and the first space 72, is in contact with the bottom surface 66a of the second space 65 was described, but the embodiment is not limited to this. That is, the fitting portion 82 does not have to be in contact with the bottom surface 66a.

[0149] Furthermore, while the fourth and fifth embodiments described a case in which the fitting portion 82 contacts the entire bottom surface 373a, 473a of the grooves 373, 473 defining the first space 72, the invention is not limited to this, and the fitting portion 82 may contact only a part of the bottom surface 373a, 473a. Also, in the fifth embodiment, the fitting portion 82 that is fitted across the second space 65 and the first space 72 does not need to contact the lower of the two wall surfaces 73a of the first space 72.

[0150] Furthermore, while the second and third embodiments described a case in which a wall defining one first space 72 includes two wall surfaces 73a that sandwich the fitting portion 82 from both sides with respect to the arrangement direction, the invention is not limited to this. The two wall surfaces 73a only need to sandwich the fitting portion 82 in a direction intersecting the extension direction, for example, they may sandwich the fitting portion 82 in the vertical direction.

[0151] Furthermore, in the fifth embodiment described above, the case in which the two wall surfaces 73a of the first space 72 located on the right side of Figure 13, and the bottom surface 473a of the first space 72 located on the left side of Figure 13 become the "first contact surface" of the present invention was explained. However, in the fixing structure of the refueling guide 6 according to the first modified example of the fifth embodiment shown in Figure 17, only the bottom surface 473a of the first space 72 located on the left side of the figure becomes the "first contact surface" of the present invention. That is, the two wall surfaces 73a of the first space 72 located on the right side of Figure 17 do not come into contact with the fitting portion 82.

[0152] In addition, although the above-described embodiment described a case in which the lubrication guide 6 is provided with a flow path portion 63 and the holder 7 is provided with a covering portion 71, the invention is not limited to this. That is, the holder 7 may be provided with a flow path portion 63 and the lubrication guide 6 may be provided with a covering portion 71.

[0153] Furthermore, although the above-described embodiment described a case in which the bottom surface 66a, which functions as the second contact surface of the present invention, is provided on the flow path portion 63 of the fuel supply guide 6, and the wall surface 73a, which functions as the first contact surface of the present invention, is provided on the covering portion 71 of the holder 7, the invention is not limited to this. The surfaces that function as the first contact surface and the surfaces that function as the second contact surface do not necessarily have to be provided in the portion where the fuel supply guide 6 and the holder 7 overlap, such as the flow path portion 63 and the covering portion 71. That is, for example, the wall surface 73a that functions as the first contact surface may be provided on the connection portion 78 of the holder 7. The bottom surface 66a that functions as the second contact surface may be provided on the guide body 60 of the fuel supply guide 6.

[0154] Furthermore, the above-described embodiment explains a case in which two projections 67 provided on the lubrication guide 6 are fitted into two notches 74 provided on the holder 7 to assist in aligning the lubrication guide 6 and the holder 7 in the circumferential direction, but the invention is not limited to this. The notches 74 may be recesses in the holder 7 that are recessed in the extension direction. That is, for example, holes may be provided instead of notches 74. Moreover, the number of notches 74 and projections 67 is not limited to two sets. There may be one set of notches 74 and projections 67, or there may be three or more sets. Notches 74 and projections 67 may not be provided at all.

[0155] Furthermore, in the first embodiment described above, a case was described in which a groove 76 for which a packing 9 is placed is formed on the inner surface of the covering portion 71 of the holder 7. Also, in the sixth embodiment described above, a case was described in which a groove 576 for which a packing 9 is placed is formed on the connecting surface 78a of the connecting portion 78 of the holder 7. However, these grooves 76 and groove 576 do not necessarily have to be formed.

[0156] Furthermore, in the first embodiment described above, the two wall surfaces 73a of the holder 7 and the one bottom surface 66a of the lubrication guide 6 are arranged on both sides of the central axis O with respect to the arrangement direction. The fixing member 8 is made of an elastic material and, by contacting the wall surfaces 73a and bottom surface 66a arranged on both sides of the central axis O with respect to the arrangement direction, the flow path portion 63 is sandwiched from both sides of the arrangement direction by elastic force. However, the invention is not limited to this. That is, it is sufficient that at least one of the wall surfaces 73a and bottom surface 66a is arranged on one side of the central axis O with respect to the arrangement direction, and at least one of the wall surfaces 73a and bottom surface 66a is arranged on the other side of the central axis O with respect to the arrangement direction. Also, the fixing member 8 does not have to be made of an elastic material.

[0157] In addition, in the above-described embodiment, the fixing member 8 can take a first position in which the fitting portion 82 is fitted into the second space 65 and the first space 72, and a second position in which the fitting portion 82 is not fitted into the second space 65 and the first space 72. The first position is below the second position. However, it is not limited to this. That is, for example, the first position and the second position may be adjacent to each other in the arrangement direction. Also, the fixing member 8 may not take the first and second positions with its opening 80 inserted through the holder 7, and may be configured to be removed from the holder 7 when the fixing of the lubrication guide 6 is released.

[0158] Furthermore, in the above-described embodiment, the case in which the fitting direction of the fitting portion 82 into the second space 65 and the first space 72 is the vertical direction (linear direction) was explained, but it is not limited to this. The fitting direction can be any direction that intersects the circumferential direction.

[0159] Furthermore, although the above-described embodiment described a case in which the wall surface 73a functioning as the first contact surface of the present invention and the bottom surface 66a functioning as the second contact surface of the present invention are planar, the invention is not limited to this. That is, for example, the fitting portion 82 may be a screw, and the surface functioning as the first contact surface and the surface functioning as the second contact surface may be surfaces that define the screw groove.

[0160] In addition, although the above-described embodiment described a case where the packing 9 is annular, it is not limited to this. That is, for example, the packing 9 may be divided into multiple parts.

[0161] Furthermore, although the above-described embodiment described a case where the fuel guide 6 is made of ceramics, the material of the fuel guide 6 is not limited to ceramics. For example, stainless steel or plated metal can be used as the material for the fuel guide 6. Also, the fuel guide 6 may be made of ceramics in part and other parts made of materials other than ceramics.

[0162] Furthermore, although the above-described embodiment described a case where the holder 7 is located between the upstream yarn guide 21 and the downstream yarn guide 22, it is not limited to this case. Either the upstream yarn guide 21 or the downstream yarn guide 22 may be provided, or neither may be provided.

[0163] Furthermore, although the above-described embodiment described a false twisting machine equipped with an oil supply device, the present invention is not limited thereto. The present invention can be applied to textile machinery in general that is equipped with an oil supply device that applies an oiling agent to yarn running along a predetermined yarn path. That is, for example, as disclosed in Japanese Patent Application Publication No. 2015-187324, in a take-up device that takes up yarn spun from a spinning machine and is equipped with a yarn separation guide that divides a plurality of yarns into predetermined intervals, the yarn runs along a predetermined yarn path. Therefore, the present invention can be applied to such a device. [Explanation of Symbols]

[0164] 1 False twisting machine 6. Fueling Guide 7 holders 8 Fixing member 9. Packing 19. Support frame (machine base) 20 Fueling device 21 Upstream thread guide (thread control guide) 22 Downstream thread guide (thread control guide) 61a Discharge port 63 Flow channel section 63a End face 64 Oil flow path 66a Bottom surface (second contact surface, contact surface on the flow path side) 66b Wall surfaces (second orthogonal plane, fourth orthogonal plane) 67 Protrusion 68 Thread guide member 71 Covering part 73a Wall surface (1st contact surface) 73b Wall surfaces (first orthogonal plane, third orthogonal plane) 74 Notch (recess) 76 Groove 78 Connection part 78a Connection surface 79 Connection channel 266c, 366c Wall surface (second contact surface) 373a, 473a Bottom surface (1st contact surface)

Claims

1. A textile machine equipped with a lubrication device that applies an oiling agent to yarn traveling along a predetermined yarn path, The aforementioned fueling device is A holder attached to the machine base, It has a discharge port for dispensing oil, and a pair of thread guide members that are positioned on both sides of the discharge port in a direction perpendicular to the direction in which the thread runs and guide the thread, and a detachable lubrication guide for the holder, A fixing member for fixing the fuel supply guide to the holder, It comprises a packing positioned between the holder and the lubrication guide, Either the oil supply guide or the holder is provided with a cylindrical flow path portion having an oil flow path formed inside it through which the oil flows toward the discharge port. The side of the lubrication guide and the holder that is not provided with the flow path is provided with a cylindrical covering portion that is arranged coaxially with the flow path and capable of covering the outer circumferential surface of the flow path. The holder is provided with a first contact surface that can come into contact with the fixing member. The fuel supply guide is provided with a second contact surface that can come into contact with the fixing member. The first contact surface is a surface that contacts the fixing member to fix the position of the fixing member in the circumferential direction of the flow path, The textile machine is characterized in that the second contact surface is a surface that fixes the position of the lubrication guide in the circumferential direction by contacting the fixing member, whose position in the circumferential direction is fixed by the first contact surface.

2. Either the lubrication guide or the holder is provided with a recess that is recessed in the direction of extension of the flow path, The textile machine according to claim 1, characterized in that the side of the oil supply guide and the holder that is different from the side in which the recess is provided is provided with a projection that can be fitted into the recess.

3. The textile machine according to claim 1, characterized in that, among the first and second contact surfaces, the contact surface on the side of the oil supply guide and the holder on which the flow path is provided is arranged on both sides of the oil flow path with respect to an orthogonal direction perpendicular to the extension direction of the flow path.

4. The textile machine according to claim 2, wherein, among the first contact surface and the second contact surface, the contact surface on the side of the oil supply guide and the holder on which the flow path is provided is arranged on both sides of the oil flow path with respect to an orthogonal direction perpendicular to the extension direction of the flow path.

5. At least two of the first contact surfaces are provided. The textile machine according to claim 1, characterized in that the at least two first contact surfaces sandwich the fixing member from both sides in the circumferential direction.

6. The first contact surface is provided with at least two surfaces, The textile machine according to claim 2, characterized in that the at least two first contact surfaces sandwich the fixing member from both sides in the circumferential direction.

7. At least two of the aforementioned second contact surfaces are provided. The textile machine according to claim 1, characterized in that the at least two second contact surfaces sandwich the fixing member from both sides in the circumferential direction.

8. The second contact surface is provided with at least two, The textile machine according to claim 2, characterized in that the at least two second contact surfaces sandwich the fixing member from both sides in the circumferential direction.

9. The first contact surface is formed in either the flow channel portion or the covering portion, The second contact surface is formed on a side of the flow channel portion and the covering portion that is different from the side on which the first contact surface is formed. The first contact surface and the second contact surface can be arranged on the same plane. The textile machine according to claim 1, characterized in that the fixing member has a plane that contacts the first contact surface and the second contact surface, which are arranged on the same plane.

10. The first contact surface is formed in either the flow channel portion or the covering portion, The second contact surface is formed on a side of the flow channel portion and the covering portion that is different from the side on which the first contact surface is formed. The first contact surface and the second contact surface can be arranged on the same plane. The textile machine according to claim 2, characterized in that the fixing member has a plane that contacts the first contact surface and the second contact surface, which are arranged on the same plane.

11. The first contact surface is formed in either the flow channel portion or the covering portion, The second contact surface is formed on a side of the flow channel portion and the covering portion that is different from the side on which the first contact surface is formed. The first contact surface and the second contact surface can be arranged on the same plane. The textile machine according to claim 3, characterized in that the fixing member has a plane that contacts the first contact surface and the second contact surface, which are arranged on the same plane.

12. The first contact surface is formed in either the flow channel portion or the covering portion, The second contact surface is formed on a side of the flow channel portion and the covering portion that is different from the side on which the first contact surface is formed. The first contact surface and the second contact surface can be arranged on the same plane. The textile machine according to claim 4, characterized in that the fixing member has a plane that contacts the first contact surface and the second contact surface, which are arranged on the same plane.

13. The first contact surface is formed in either the flow channel portion or the covering portion, The second contact surface is formed on a side of the flow channel portion and the covering portion that is different from the side on which the first contact surface is formed. The first contact surface and the second contact surface can be arranged on the same plane. The textile machine according to claim 5, characterized in that the fixing member has a plane that contacts the first contact surface and the second contact surface, which are arranged on the same plane.

14. The first contact surface is formed in either the flow channel portion or the covering portion, The second contact surface is formed on a side of the flow channel portion and the covering portion that is different from the side on which the first contact surface is formed. The first contact surface and the second contact surface can be arranged on the same plane. The textile machine according to claim 6, characterized in that the fixing member has a plane that contacts the first contact surface and the second contact surface, which are arranged on the same plane.

15. The first contact surface is formed in either the flow channel portion or the covering portion, The second contact surface is formed on a side of the flow channel portion and the covering portion that is different from the side on which the first contact surface is formed. The first contact surface and the second contact surface can be arranged on the same plane. The textile machine according to claim 7, characterized in that the fixing member has a plane that contacts the first contact surface and the second contact surface, which are arranged on the same plane.

16. The first contact surface is formed in either the flow channel portion or the covering portion, The second contact surface is formed on a side of the flow channel portion and the covering portion that is different from the side on which the first contact surface is formed. The first contact surface and the second contact surface can be arranged on the same plane. The textile machine according to claim 8, characterized in that the fixing member has a plane that contacts the first contact surface and the second contact surface, which are arranged on the same plane.

17. The side of the oil supply guide and the holder on which the covering portion is provided is provided with a connecting portion in which a connecting channel is formed that is connected to one end of the oil flow path. The covering portion is provided with a first orthogonal surface that is perpendicular to the extension direction of the flow channel portion and faces the connection portion side. The flow channel portion is provided with a second orthogonal surface that is perpendicular to the extension direction and faces away from the connection portion. The packing is positioned between the end face of the oil passage in the flow path portion where one end is open and the connecting surface of the connecting passage in the connecting portion where the connecting passage is open, and can bias the oil supply guide in the direction in which the first orthogonal plane and the second orthogonal plane move closer together. The textile machine according to claim 9, characterized in that when the plane of the fixing member contacts the first contact surface and the second contact surface, the fixing member is sandwiched between the first orthogonal surface and the second orthogonal surface with respect to the stretching direction.

18. The side of the oil supply guide and the holder on which the covering portion is provided is provided with a connecting portion on which a connecting channel is formed that is connected to one end of the oil flow path, The covering portion is provided with a first orthogonal surface that is perpendicular to the extension direction of the flow channel portion and faces the connection portion side. The flow channel portion is provided with a second orthogonal surface that is perpendicular to the extension direction and faces away from the connection portion. The packing is positioned between the end face of the oil passage in the flow path portion where one end is open and the connecting surface of the connecting passage in the connecting portion where the connecting passage is open, and can bias the oil supply guide in the direction in which the first orthogonal plane and the second orthogonal plane move closer together. The textile machine according to claim 10, characterized in that when the plane of the fixing member contacts the first contact surface and the second contact surface, the fixing member is sandwiched between the first orthogonal surface and the second orthogonal surface with respect to the stretching direction.

19. The side of the oil supply guide and the holder on which the covering portion is provided is provided with a connecting portion on which a connecting channel is formed that is connected to one end of the oil flow path, The covering portion is provided with a first orthogonal surface that is perpendicular to the extension direction of the flow channel portion and faces the connection portion side. The flow channel portion is provided with a second orthogonal surface that is perpendicular to the extension direction and faces away from the connection portion. The packing is positioned between the end face of the oil passage in the flow path portion where one end is open and the connecting surface of the connecting passage in the connecting portion where the connecting passage is open, and can bias the oil supply guide in the direction in which the first orthogonal plane and the second orthogonal plane move closer together. The textile machine according to claim 11, characterized in that when the plane of the fixing member contacts the first contact surface and the second contact surface, the fixing member is sandwiched between the first orthogonal surface and the second orthogonal surface with respect to the stretching direction.

20. The side of the oil supply guide and the holder on which the covering portion is provided is provided with a connecting portion on which a connecting channel is formed that is connected to one end of the oil flow path, The covering portion is provided with a first orthogonal surface that is perpendicular to the extension direction of the flow channel portion and faces the connection portion side. The flow channel portion is provided with a second orthogonal surface that is perpendicular to the extension direction and faces away from the connection portion. The packing is positioned between the end face of the oil passage in the flow path portion where one end is open and the connecting surface of the connecting passage in the connecting portion where the connecting passage is open, and can bias the oil supply guide in the direction in which the first orthogonal plane and the second orthogonal plane move closer together. The textile machine according to claim 12, characterized in that when the plane of the fixing member contacts the first contact surface and the second contact surface, the fixing member is sandwiched between the first orthogonal surface and the second orthogonal surface with respect to the stretching direction.

21. The side of the oil supply guide and the holder on which the covering portion is provided is provided with a connecting portion on which a connecting channel is formed that is connected to one end of the oil flow path, The covering portion is provided with a first orthogonal surface that is perpendicular to the extension direction of the flow channel portion and faces the connection portion side. The flow channel portion is provided with a second orthogonal surface that is perpendicular to the extension direction and faces away from the connection portion. The packing is positioned between the end face of the oil passage in the flow path portion where one end is open and the connecting surface of the connecting passage in the connecting portion where the connecting passage is open, and can bias the oil supply guide in the direction in which the first orthogonal plane and the second orthogonal plane move closer together. The textile machine according to claim 13, characterized in that when the plane of the fixing member contacts the first contact surface and the second contact surface, the fixing member is sandwiched between the first orthogonal surface and the second orthogonal surface with respect to the stretching direction.

22. The side of the oil supply guide and the holder on which the covering portion is provided is provided with a connecting portion having a connecting channel formed therein that is connected to one end of the oil flow path, The covering portion is provided with a first orthogonal surface that is perpendicular to the extension direction of the flow channel portion and faces the connection portion side. The flow channel portion is provided with a second orthogonal surface that is perpendicular to the extension direction and faces away from the connection portion. The packing is positioned between the end face of the oil passage in the flow path portion where one end is open and the connecting surface of the connecting passage in the connecting portion where the connecting passage is open, and can bias the oil supply guide in the direction in which the first orthogonal plane and the second orthogonal plane move closer together. The textile machine according to claim 14, characterized in that when the plane of the fixing member contacts the first contact surface and the second contact surface, the fixing member is sandwiched between the first orthogonal surface and the second orthogonal surface with respect to the stretching direction.

23. The side of the oil supply guide and the holder on which the covering portion is provided is provided with a connecting portion on which a connecting channel is formed that is connected to one end of the oil flow path, The covering portion is provided with a first orthogonal surface that is perpendicular to the extension direction of the flow channel portion and faces the connection portion side. The flow channel portion is provided with a second orthogonal surface that is perpendicular to the extension direction and faces away from the connection portion. The packing is positioned between the end face of the oil passage in the flow path portion where one end is open and the connecting surface of the connecting passage in the connecting portion where the connecting passage is open, and can bias the oil supply guide in the direction in which the first orthogonal plane and the second orthogonal plane move closer together. The textile machine according to claim 15, characterized in that when the plane of the fixing member contacts the first contact surface and the second contact surface, the fixing member is sandwiched between the first orthogonal surface and the second orthogonal surface with respect to the stretching direction.

24. The side of the oil supply guide and the holder on which the covering portion is provided is provided with a connecting portion on which a connecting channel is formed that is connected to one end of the oil flow path, The covering portion is provided with a first orthogonal surface that is perpendicular to the extension direction of the flow channel portion and faces the connection portion side. The flow channel portion is provided with a second orthogonal surface that is perpendicular to the extension direction and faces away from the connection portion. The packing is positioned between the end face of the oil passage in the flow path portion where one end is open and the connecting surface of the connecting passage in the connecting portion where the connecting passage is open, and can bias the oil supply guide in the direction in which the first orthogonal plane and the second orthogonal plane move closer together. The textile machine according to claim 16, characterized in that when the plane of the fixing member contacts the first contact surface and the second contact surface, the fixing member is sandwiched between the first orthogonal surface and the second orthogonal surface with respect to the stretching direction.

25. The holder is provided with two third orthogonal surfaces that are perpendicular to the extension direction and are located at both ends of the extension direction of the flow channel portion on the first contact surface, and are opposite to the extension direction. The fuel supply guide is provided with two fourth orthogonal surfaces that are perpendicular to the extension direction and are located at both ends of the extension direction of the second contact surface, and are opposite to the extension direction. The textile machine according to claim 9, characterized in that the distance between the two third orthogonal planes, the distance between the two fourth orthogonal planes, and the length of the fixing member in the extension direction are all the same.

26. The holder is provided with two third orthogonal surfaces which are perpendicular to the extension direction and are located at both ends of the extension direction of the flow channel portion on the first contact surface, and which are opposite to the extension direction. The fuel supply guide is provided with two fourth orthogonal surfaces that are perpendicular to the extension direction and are located at both ends of the extension direction of the second contact surface, and are opposite to the extension direction. The textile machine according to claim 10, characterized in that the distance between the two third orthogonal planes, the distance between the two fourth orthogonal planes, and the length of the fixing member in the extension direction are all the same.

27. ​​The holder is provided with two third orthogonal surfaces which are perpendicular to the extension direction and are located at both ends of the extension direction of the flow channel portion on the first contact surface, and which are opposite to the extension direction. The fuel supply guide is provided with two fourth orthogonal surfaces that are perpendicular to the extension direction and are located at both ends of the extension direction of the second contact surface, and are opposite to the extension direction. The textile machine according to claim 11, characterized in that the distance between the two third orthogonal planes, the distance between the two fourth orthogonal planes, and the length of the fixing member in the extension direction are all the same.

28. The holder is provided with two third orthogonal surfaces which are perpendicular to the extension direction and are located at both ends of the extension direction of the flow channel portion on the first contact surface, and which are opposite to the extension direction. The fuel supply guide is provided with two fourth orthogonal surfaces that are perpendicular to the extension direction and are located at both ends of the extension direction of the second contact surface, and are opposite to the extension direction. The textile machine according to claim 12, characterized in that the distance between the two third orthogonal planes, the distance between the two fourth orthogonal planes, and the length of the fixing member in the extension direction are all the same.

29. The holder is provided with two third orthogonal surfaces which are perpendicular to the extension direction and are located at both ends of the extension direction of the flow channel portion on the first contact surface, and which are opposite to the extension direction. The fuel supply guide is provided with two fourth orthogonal surfaces that are perpendicular to the extension direction and are located at both ends of the extension direction of the second contact surface, and are opposite to the extension direction. The textile machine according to claim 13, characterized in that the distance between the two third orthogonal planes, the distance between the two fourth orthogonal planes, and the length of the fixing member in the extension direction are all the same.

30. The holder is provided with two third orthogonal surfaces which are perpendicular to the extension direction and are provided at both ends of the extension direction of the flow channel portion on the first contact surface, and which are opposite to the extension direction. The fuel supply guide is provided with two fourth orthogonal surfaces that are perpendicular to the extension direction and are located at both ends of the extension direction of the second contact surface, and are opposite to the extension direction. The textile machine according to claim 14, characterized in that the distance between the two third orthogonal planes, the distance between the two fourth orthogonal planes, and the length of the fixing member in the extension direction are all the same.

31. The holder is provided with two third orthogonal surfaces which are perpendicular to the extension direction and are located at both ends of the extension direction of the flow channel portion on the first contact surface, and which are opposite to the extension direction. The fuel supply guide is provided with two fourth orthogonal surfaces that are perpendicular to the extension direction and are located at both ends of the extension direction of the second contact surface, and are opposite to the extension direction. The textile machine according to claim 15, characterized in that the distance between the two third orthogonal planes, the distance between the two fourth orthogonal planes, and the length of the fixing member in the extension direction are all the same.

32. The holder is provided with two third orthogonal surfaces which are perpendicular to the extension direction and are provided at both ends of the extension direction of the flow channel portion on the first contact surface, and which are opposite to the extension direction. The fuel supply guide is provided with two fourth orthogonal surfaces that are perpendicular to the extension direction and are located at both ends of the extension direction of the second contact surface, and are opposite to the extension direction. The textile machine according to claim 16, characterized in that the distance between the two third orthogonal planes, the distance between the two fourth orthogonal planes, and the length of the fixing member in the extension direction are all the same.

33. A groove is formed on the inner surface of the covering portion, The textile machine according to claim 25, characterized in that the packing is arranged in the groove.

34. A groove is formed on the inner surface of the covering portion, The textile machine according to claim 26, characterized in that the packing is arranged in the groove.

35. A groove is formed on the inner surface of the covering portion, The textile machine according to claim 27, characterized in that the packing is arranged in the groove.

36. A groove is formed on the inner surface of the covering portion, The textile machine according to claim 28, characterized in that the packing is arranged in the groove.

37. A groove is formed on the inner surface of the covering portion, The textile machine according to claim 29, characterized in that the packing is arranged in the groove.

38. A groove is formed on the inner surface of the covering portion, The textile machine according to claim 30, characterized in that the packing is arranged in the groove.

39. A groove is formed on the inner surface of the covering portion, The textile machine according to claim 31, characterized in that the packing is arranged in the groove.

40. A groove is formed on the inner surface of the covering portion, The textile machine according to claim 32, characterized in that the packing is arranged in the groove.

41. It is possible to position at least one of the first contact surface and the second contact surface on one side of the central axis of the covering portion with respect to the orthogonal direction perpendicular to the extension direction of the flow channel portion, and to position at least one of the first contact surface and the second contact surface on the other side of the central axis with respect to the orthogonal direction. The textile machine according to any one of claims 1 to 40, characterized in that the fixing member is formed of an elastic material and contacts at least one of the first contact surface and the second contact surface, which are arranged on both sides of the central axis in the orthogonal direction, thereby clamping the flow channel from both sides in the orthogonal direction by elastic force.

42. The fixing member comprises a first portion having a portion that contacts the first contact surface and the second contact surface, and a second portion adjacent to the first portion, with an opening formed that spans the first portion and the second portion. The portion formed in the second part of the opening is larger than the outer shape of the covering portion. The textile machine according to any one of claims 1 to 40, characterized in that the fixing member can take on a first position in which the covering portion is inserted through a portion formed in the first part of the opening and contacts the first contact surface and the second contact surface, and a second position in which the covering portion is inserted through a portion formed in the second part of the opening and does not contact the first contact surface and the second contact surface.

43. The textile machine according to claim 42, characterized in that the first position is lower than the second position in the vertical direction.

44. The textile machine according to any one of claims 1 to 40, characterized in that the first contact surface and the second contact surface are planar.

45. The textile machine according to claim 44, characterized in that the lubrication guide is made of ceramics.

46. The textile machine according to any one of claims 1 to 40, characterized in that the packing is annular.

47. The textile machine according to any one of claims 1 to 40, characterized in that the oil supply device applies an oil to the yarn running in the false twisting machine.

48. The aforementioned fueling device is It further includes two thread regulating guides spaced apart in the direction of thread travel, The textile machine according to any one of claims 1 to 40, characterized in that the holder is located between the two yarn guides.

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