EP4306693A1

EP4306693A1 - Textile machine

Info

Publication number: EP4306693A1
Application number: EP23176369.9A
Authority: EP
Inventors: Koki KIMURA
Original assignee: TMT Machinery Inc
Current assignee: TMT Machinery Inc
Priority date: 2022-07-11
Filing date: 2023-05-31
Publication date: 2024-01-17
Also published as: CN117385509A; TW202403135A; JP2024009536A

Abstract

An object of the present invention is to ensure the reproducibility of a position and posture of an oil supply guide with respect to a yarn path, and to easily fix the oil supply guide.An oil supply guide 6 is provided with a cylindrical passage portion 63 in which an oil passage 64 is formed. A holder 7 is provided with a cylindrical covering portion 71 which is able to cover an outer circumferential surface of the passage portion 63. The holder 7 is provided with wall surfaces 73a which can make contact with a fixing member 8, and the oil supply guide 6 is provided with bottom surfaces 66a which can make contact with the fixing member 8. The bottom surfaces 66a provided at the oil supply guide 6 are arranged to fix the position of the oil supply guide 6 in the circumferential direction by making contact with the fixing member 8 the position of which is fixed in the circumferential direction by the wall surfaces 73a provided at the holder 7.

Description

BACKGROUND OF THE INVENTION

The present invention relates to a textile machine including an oiling device configured to apply oil to a yarn.
A known oiling device is configured to apply oil to a yarn. For example, Patent Literature 1 ( Japanese Laid-Open Patent Publication No. 2019-135335 ) discloses a spun yarn take-up apparatus including an oil supply unit (i.e., oiling device) configured to apply oil to a running yarn spun out from a spinning apparatus. Such an oil supply unit includes an oil supply guide including: a discharge port through which the oil is discharged; and a pair of yarn guiding members which are provided on both sides of the discharge port in a direction orthogonal to a yarn running direction and which are configured to guide the yarn. When the yarn jumps up, the paired yarn guiding members prevent the detachment of the yarn from the oil supply guide.

SUMMARY OF THE INVENTION

In the above-described oiling device, the oil supply guide needs to be replaced in accordance with the thickness of the yarn and the type of oil. In order to smoothly replace the oil supply guide, the fixation of the oil supply guide is desired to be easy.
In a typical textile machine in which a yarn runs along a predetermined yarn path, it is important to ensure the reproducibility of a position (location) of an oil supply guide with respect to the yarn path at the time of fixing the oil supply guide. In the above-described oil supply guide, the paired yarn guiding members are provided on both sides of the discharge port in the direction orthogonal to the yarn running direction. With this arrangement, when the oil supply guide is fixed to be inclined from the yarn running direction, the yarn may not be threaded between the paired guiding members. It is therefore important to also ensure the reproducibility of posture of the oil supply guide at the time of fixing the oil supply guide.
An object of the present invention is to provide a textile machine capable of ensuring the reproducibility of a position and posture of an oil supply guide with respect to a yarn path, and of easily fixing the oil supply guide.
According to the first aspect of the invention, a textile machine includes an oiling device configured to apply oil to a yarn running along a predetermined yarn path, and the oiling device includes: a holder attached to a base; an oil supply guide which includes a discharge port and a pair of yarn guiding members provided on both sides of the discharge port in a direction orthogonal to a yarn running direction and which is attachable to and detachable from the holder, the oil being discharged from the discharge port, the yarn running in the yarn running direction, and the paired yarn guiding members being configured to guide the yarn; a fixing member configured to fix the oil supply guide to the holder; and a packing provided between the holder and the oil supply guide. In this regard, one of the oil supply guide and the holder is provided with a cylindrical passage portion in which an oil passage is formed, and the oil flows toward the discharge port in the oil passage. Meanwhile, the other of the oil supply guide and the holder is not provided with the passage portion but is provided with a cylindrical covering portion which is coaxial with the passage portion and which is able to cover an outer circumferential surface of the passage portion. The above-described holder is provided with at least one first contact surface which is able to make contact with the fixing member, and the above-described oil supply guide is provided with at least one second contact surface which is able to make contact with the fixing member. The at least one first contact surface is arranged to fix the position of the fixing member in a circumferential direction of the passage portion by making contact with the fixing member, and the at least one second contact surface is arranged to fix the position of the oil supply guide in the circumferential direction by making contact with the fixing member the position of which is fixed by the at least one first contact surface in the circumferential direction.
With this arrangement, the position of the oil supply guide on a plane orthogonal to an extending direction of the passage portion is fixed by inserting the passage portion into the covering portion so that the outer circumferential surface of the passage portion is covered by the covering portion. Therefore, the reproducibility of a position of the oil supply guide with respect to the yarn path is ensured by covering the outer circumferential surface of the passage portion with the covering portion. Furthermore, the reproducibility of posture of the oil supply guide is ensured by causing the fixing member to make contact with (i) the at least one first contact surface of the holder and (ii) the at least one second contact surface of the oil supply guide so that the position of the oil supply guide is fixed in the circumferential direction. The oil supply guide is easily fixed by covering the outer circumferential surface of the passage portion with the covering portion and causing the fixing member to make contact with each contact surface of the holder and each contact surface of the oil supply guide.
According to the second aspect of the invention, the textile machine is arranged so that one of the oil supply guide and the holder is provided with a concave portion which is concave in an extending direction of the passage portion, and the other of the oil supply guide and the holder is not provided with the concave portion but is provided with a protrusion which is able to be fitted into the concave portion.
With this arrangement, the alignment of the oil supply guide and the holder with respect to the circumferential direction is facilitated by fitting the protrusion into the concave portion.
According to the third aspect of the invention, the textile machine is arranged so that one of the oil supply guide and the holder is provided with the passage portion and passage-portion contact surfaces, and the passage-portion contact surfaces are first contact surfaces or second contact surfaces and provided on both sides of the oil passage so as to oppose each other over the oil passage in an orthogonal direction orthogonal to an extending direction of the passage portion.
This ensures the large passage-portion contact surfaces with simple processing, and improves the accuracy of reproducibility of posture of the oil supply guide.
According to the fourth aspect of the invention, the textile machine is arranged so that the number of first contact surfaces is at least two, and the first contact surfaces are arranged to sandwich the fixing member from both sides of the fixing member in the circumferential direction.
With this arrangement, the position of the fixing member is fixed in the circumferential direction by being fitted into a space between the first contact surfaces.
According to the fifth aspect of the invention, the textile machine is arranged so that the number of second contact surfaces is at least two, and the second contact surfaces are arranged to sandwich the fixing member from both sides of the fixing member in the circumferential direction.
With this arrangement, the position of the oil supply guide in the circumferential direction is fixed by fitting the fixing member into a space between the second contact surfaces.
According to the sixth aspect of the invention, the textile machine is arranged so that one of the passage portion and the covering portion is provided with the at least one first contact surface, the other of the passage portion and the covering portion is not provided with the at least one first contact surface but is provided with the at least one second contact surface, the at least one first contact surface and the at least one second contact surface are able to be provided on a single plane, and the fixing member includes a flat surface arranged to make contact with the at least one first contact surface and the at least one second contact surface which are provided on the single plane.
With this arrangement, the shape of the fixing member is simplified.
According to the seventh aspect of the invention, the textile machine is arranged so that one of the oil supply guide and the holder is provided with the covering portion and a connection portion in which a connection passage connected to one end portion of the oil passage is formed, the covering portion is provided with a first orthogonal surface which is orthogonal to an extending direction of the passage portion and which is oriented to the connection portion, the passage portion is provided with a second orthogonal surface which is orthogonal to the extending direction and which is oriented in a direction opposite to the connection portion, the packing is provided between an end face of the passage portion and a connection surface of the connection portion, the one end portion of the oil passage is open to the end face, the connection passage is open to the connection surface, and the packing is able to bias the oil supply guide in a direction in which the first orthogonal surface approaches the second orthogonal surface. When the flat surface of the fixing member makes contact with the at least one first contact surface and the at least one second contact surface, the fixing member is sandwiched in the extending direction by the first orthogonal surface and the second orthogonal surface.
With this arrangement, the oil supply guide is biased by the packing in the direction in which the first orthogonal surface approaches the second orthogonal surface. As the fixing member is sandwiched in the extending direction by the first orthogonal surface of the covering portion and the second orthogonal surface of the passage portion, the oil supply guide and the holder are accurately positioned in the extending direction without accurate processing.
According to the eight aspect of the invention, the textile machine is arranged so that the holder is provided with two third orthogonal surfaces which are provided at both end portions of the at least one first contact surface in an extending direction of the passage portion, which are orthogonal to the extending direction, and which oppose each other in the extending direction, the oil supply guide is provided with two fourth orthogonal surfaces which are provided at both end portions of the at least one second contact surface in the extending direction, which are orthogonal to the extending direction, and which oppose each other in the extending direction, and the distance between the two third orthogonal surfaces, the distance between the two fourth orthogonal surfaces, and the length of the fixing member in the extending direction are identical with one another.
With this arrangement, when the flat surface of the fixing member makes contact with the at least one first contact surface and the at least one second contact surface, the fixing member is sandwiched by (i) the third orthogonal surfaces from both sides of the fixing member in the extending direction and (ii) the fourth orthogonal surfaces from both sides of the fixing member in the extending direction. Because of this, the position of the oil supply guide and that of the holder are decided in the extending direction.
According to the ninth aspect of the invention, the textile machine is arranged so that a groove is formed on an inner surface of the covering portion, and the packing is provided in the groove.
With this arrangement, when the passage portion and the covering portion are moved relative to each other, the packing is unlikely to move.
According to the tenth aspect of the invention, the textile machine is arranged so that at least (i) the at least one first contact surface or (ii) the at least one second contact surface is able to be provided on one side of a center axis of the covering portion in an orthogonal direction orthogonal to an extending direction of the passage portion, at least (i) the at least one first contact surface or (ii) the at least one second contact surface is able to be provided on the other side of the center axis in the orthogonal direction, and the fixing member is made of a material having elastic force and configured to sandwich the passage portion by means of the elastic force from both sides of the passage portion in the orthogonal direction by making contact with, at least, the at least one first contact surface or the at least one second contact surface on each of both sides of the center axis in the orthogonal direction.
With this arrangement, the fixing member is unlikely to move, and thus the position of the oil supply guide and that of the holder are stably fixed.
According to the eleventh aspect of the invention, the textile machine is arranged so that the fixing member is formed of a first part arranged to partially make contact with the at least one first contact surface and the at least one second contact surface and a second part adjacent to the first part, an opening is formed across the first part and the second part in the fixing member, the opening has a part which is formed at the second part and which is larger than the outer shape of the covering portion, and the fixing member is able to take a first position where the covering portion is inserted into a part of the opening at the first part so that the fixing member is in contact with the at least one first contact surface and the at least one second contact surface and a second position where the covering portion is inserted into a part of the opening at the second part so that the fixing member is not in contact with the at least one first contact surface and the at least one second contact surface.
With this arrangement, the fixing member at the first position fixes the oil supply guide and the holder, and the fixing member at the second position removes the fixation from the oil supply guide to the holder. Even when the fixation from the oil supply guide to the holder is unfixed, the covering portion is still inserted into the opening of the fixing member. It is therefore possible to avoid losing the fixing member.
According to the twelfth aspect of the invention, the textile machine is arranged so that the first position is provided below the second position in a vertical direction.
This prevents the fixing member from unintentionally moving from the first position to the second position.
According to the thirteenth aspect of the invention, the textile machine is arranged so that the at least one first contact surface and the at least one second contact surface are flat surfaces.
With this arrangement, the holder and the oil supply guide are easily processed as compared to a case where, e.g., the fixing member is provided with a screw and the at least one first contact surface and the at least one second contact surface define a screw groove.
According to the fourteenth aspect of the invention, the textile machine is arranged so that the oil supply guide is made of ceramics.
For example, when (i) the oil supply guide is made of ceramics and (ii) a male screw provided at the fixing member is engaged with a female screw provided at the oil supply guide so as to fix the position of the oil supply guide, the oil supply guide may be broken. Assume that the position of the oil supply guide is fixed in the circumferential direction by causing the fixing member to make contact with the at least one second contact surface which are flat surfaces. In this case, even when the oil supply guide is made of ceramics, the breakage of the oil supply guide is suppressed.
According to the fifteenth aspect of the invention, the textile machine is arranged so that the packing is annular in shape.
With this arrangement, a gap between the holder and the oil supply guide across the entire circumference of the oil supply guide is sealed by the single packing. Processing of the packing is therefore facilitated.
According to a sixteenth aspect of the invention, the textile machine is arranged so that the oiling device is configured to apply the oil to the yarn running in a false-twist texturing machine.
In the false-twist texturing machine, a wound package is formed by false-twisting and winding the yarn supplied from a yarn supply package. In this false-twist texturing machine, the oil is additionally applied to the yarn to which the oil has been applied. Therefore, a required amount of the oil applied to the yarn is small. The oil supply guide is able to suppress the application amount of the oil applied to the yarn to be relatively small. Therefore, the oiling device including the oil supply guide is preferably used in the false-twist texturing machine. With the above-described arrangement, when the oiling device including the oil supply guide is used in the false-twist texturing machine, the reproducibility of a position and posture of the oil supply guide with respect to a yarn path is easily ensured.
According to the seventeenth aspect of the invention, the textile machine is arranged so that the oiling device further includes two yarn regulating guides which are separated in the yarn running direction, and the holder is provided between the two yarn regulating guides.
It is therefore possible to ensure the reproducibility of a position and posture of the oil supply guide with respect to the yarn path of the yarn guided by the two yarn regulating guides, and to easily fix the oil supply guide.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a profile of a false-twist texturing machine of a first embodiment.
FIG. 2 is a perspective view of an oiling device.
FIG. 3 is a profile of the oiling device.
FIG. 4 is a cross section of an oil supply guide fixed to a holder, taken along a plane orthogonal to an up-down direction of the oil supply guide.
FIG. 5(a) is a perspective view of the oil supply guide, and FIG. 5(b) is a profile of the oil supply guide.
FIG. 6(a) is a perspective view of the holder, and FIG. 6(b) is a profile of the holder.
FIG. 7 shows a fixing member.
FIG. 8 is a cross section of the oil supply guide fixed to the holder, taken along a plane orthogonal to an extending direction of the oil supply guide.
FIG. 9(a) is a perspective view of the fixed oil supply guide, and FIG. 9(b) is a perspective view of the unfixed oil supply guide.
FIG. 10 shows how an oil supply guide of a second embodiment is fixed.
FIG. 11 shows how an oil supply guide of a third embodiment is fixed.
FIG. 12 shows how an oil supply guide of a fourth embodiment is fixed.
FIG. 13 shows how an oil supply guide of a fifth embodiment is fixed.
FIG. 14 shows how an oil supply guide of a sixth embodiment is fixed.
FIG. 15 shows how an oil supply guide of a first modification of the first embodiment is fixed.
FIG. 16 shows how an oil supply guide of a second modification of the first embodiment is fixed.
FIG. 17 shows how an oil supply guide of a first modification of the fifth embodiment is fixed.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

The following will describe a false-twist texturing machine 1 of a preferred first embodiment of the present invention, with reference to FIG. 1. A vertical direction to the sheet of FIG. 1 is defined as a base longitudinal direction, and a left-right direction to the sheet is defined as a base width direction. A direction orthogonal to the base longitudinal direction and the base width direction is defined as an up-down direction (i.e., vertical direction) in which the gravity acts.
The false-twist texturing machine 1 is able to perform false twisting of yarns Y (i.e., to false-twist the yarns Y) made of synthetic fibers such as nylon (polyamide fibers) and polyester. The false-twist texturing machine 1 includes a yarn supplying unit 2 for supplying the yarns Y, a processing unit 3 configured to false-twist the yarns Y supplied from the supplying unit 2, and a winding unit 4 configured to wind the yarns Y processed by the processing unit 3 onto winding bobbins Bw.
The yarn supplying unit 2 includes a creel stand 5 retaining yarn supply packages Ps. The yarn supplying unit 2 is configured to supply the yarns Y to the processing unit 3. The processing unit 3 is configured to false-twist the yarns Y supplied from the yarn supply packages Ps. In the processing unit 3, the following members are provided in this order from the upstream side in a yarn running direction: a first feed roller 11a; each twist-stopping guide 12; a heater 13; a cooler 14; each false-twisting device 15; each tension sensor 16; a second feed roller 11b; each interlacing device 17; a third feed roller 11c, and an oiling device 20. The winding unit 4 is configured to wind the yarns Y false-twisted by the processing unit 3 onto the winding bobbins Bw by means of winding devices 10, so as to form wound packages Pw.
The false-twist texturing machine 1 further includes a main base 18 extending in the base longitudinal direction and a supporting frame 19. To the main base 18, the winding devices 10 are attached. The main base 18 is provided to oppose the creel stand 5 over a working space A in the base width direction. Each device forming the processing unit 3 is attached to the supporting frame 19. Each device forming the processing unit 3 is provided above the working space A.
In the false-twist texturing machine 1, processing units (which are also termed spindles) in which yarn paths are formed to pass the devices forming the processing unit 3 are lined up in the base longitudinal direction. With this arrangement, the false-twist texturing machine 1 is structured so that the yarns Y running while being aligned in the base longitudinal direction can be simultaneously false-twisted.
In the present embodiment, the first feed roller 11a, the second feed roller 11b, and the third feed roller 11c are shared between plural (e.g., two) spindles. The heater 13 and the cooler 14 are shared between plural (e.g., four) spindles. The twist-stopping guide 12, the false-twisting device 15, the tension sensor 16, the interlacing device 17, and a later-described oil supply guide 6 of the oiling device 20 are provided for each spindle.
Each yarn Y supplied from the yarn supplying unit 2 to the processing unit 3 is drawn between the first feed roller 11a and the second feed roller 11b, and twisted by the false-twisting device 15. The twist formed by the false-twisting device 15 is propagated to the twist-stopping guide 12, but is not propagated to the upstream side of the twist-stopping guide 12 in the yarn running direction.
The yarn Y which is twisted and drawn as described above is heated by the heater 13. After that, the yarn Y is cooled and thermally set by the cooler 14. The yarn Y having passed the false-twisting device 15 is unwound before the yarn Y reaches the second feed roller 11b. However, the twist of the yarn Y is thermally set as described above. Each filament is therefore maintained to be wavy in shape. In this regard, the tension sensor 16 provided between the false-twisting device 15 and the second feed roller 11b is able to detect a defect at the yarn Y such as excessive tension and yarn breakage.
The yarn Y is then relaxed between the second feed roller 11b and the third feed roller 11c, and interlaced by the interlacing device 17. Subsequently, the oiling device 20 applies oil to the yarn Y. In the winding unit 4, the yarn Y to which the oil has been applied is wound by each winding device 10. In this regard, the yarn Y in each yarn supply package Ps is an oiled yarn. That is, the oiling device 20 additionally applies oil to the oiled yarn Y.
In the false-twist texturing machine 1, each yarn Y runs along a predetermined yarn path from the yarn supplying unit 2 to the winding unit 4. For example, Japanese Laid-Open Patent Publication No. 2021-127532 discloses a spun yarn take-up machine including an oil applying guide (equivalent to an "oil supply guide" of the present invention) which is configured to bundle plural filaments spun out from a spinneret so as to form a single yarn and which is configured to apply oil to the yarn. In such a spun yarn take-up machine, the position (location) of the oil supply guide varies in a yarn running direction depending on to what degree the yarn spun out from the spinneret is cooled. That is, the optimal location of the oil supply guide in the yarn running direction varies depending on the type of the yarn, etc. In such a spun yarn take-up machine, as the position of the oil supply guide varies depending on the type of the yarn, etc., a yarn path also varies.

(Oiling Device 20)

The following will describe the oiling device 20 with reference to FIG. 2 and FIG. 3. As shown in FIG. 2, the oiling device 20 includes oil supply guides 6, holders 7, fixing members 8, upstream yarn guides 21, and downstream yarn guides 22. The oil supply guides 6 are provided for the respective spindles. The oil supply guides 6 are aligned in the base longitudinal direction. The oil is supplied to each oil supply guide 6 from an oil tank 70 shared between the oil supply guides 6.
The upstream yarn guides 21 are separated from the downstream yarn guides 22 in the yarn running direction (i.e., up-down direction). The upstream yarn guides 21 are provided upstream of the respective oil supply guides 6 in the yarn running direction. The downstream yarn guides 22 are provided downstream of the respective oil supply guides 6 in the yarn running direction. In other words, the oil supply guides 6 are provided between the upstream yarn guides 21 and the downstream yarn guides 22. In this regard, yarns Y are guided by the upstream yarn guides 21 and the downstream yarn guides 22 so that the yarn paths of the yarns Y are defined between the upstream yarn guides 21 and the downstream yarn guides 22. The upstream yarn guides 21 and the downstream yarn guides 22 are preferably provided in the vicinity of the oil supply guides 6, so that the yarns Y are sent to the oil supply guides 6 while the filaments are bundled. Each upstream yarn guide 21 is provided between the third feed roller 11c and an oil supply guide 6. Each downstream yarn guide 22 is provided between an oil supply guide 6 and the winding unit 4.
While each yarn Y running downward is sent to the oiling device 20 by the third feed roller 11c and guided by an upstream yarn guide 21 and a downstream yarn guide 22, the yarn Y makes contact with a contact surface 62 (see FIG. 4) of an oil supply guide 6. As the yarn Y makes contact with the contact surface 62 of the oil supply guide 6, the oil discharged from a discharge port 61a (see FIG. 4) is applied to the yarn Y.

(How Oil Supply Guide 6 Is Fixed)

The following will describe how each oil supply guide 6 is fixed, with reference to FIG. 4 to FIG. 9. Each oil supply guide 6 is attachable to and detachable from a holder 7. Each oil supply guide 6 is fixed to the holder 7 by a fixing member 8. As shown in FIG. 3, each holder 7 is attached to the supporting frame 19 and provided between an upstream yarn guide 21 and a downstream yarn guide 22.
In the present disclosure, the oil supply guide 6 is made of ceramics. In the present disclosure, the holder 7 is made of metal. The holder 7 may be made of ceramics. The fixing member 8 is made of sheet metal. Hereinafter, the directions of the oil supply guide 6, the holder 7, and the fixing member 8 are explained on the premise that the oil supply guide 6 is fixed to the holder 7.
As shown in FIG. 4 and FIGs. 5(a) and 5(b), the oil supply guide 6 includes a guide main body 60 and a passage portion 63. The guide main body 60 and the passage portion 63 are integrated with each other. The contact surface 62 is provided at the guide main body 60. The passage portion 63 is substantially cylindrical in shape. In the passage portion 63, an oil passage 64 in which oil flows toward the discharge port 61a is formed. The guide main body 60 is provided at an end portion of the passage portion 63 on one side (i.e., the left side in FIG. 4) in an extending direction of the passage portion 63.
The oil supply guide 6 is fixed to the holder 7 so that the extending direction of the passage portion 63 is identical with the base width direction. Hereinafter, the extending direction of the passage portion 63 is simply referred to as the extending direction. A direction orthogonal to the extending direction and the up-down direction (i.e., the base longitudinal direction: an arrangement direction in which the oil supply guides 6 are aligned) is simply referred to as the arrangement direction. The arrangement direction is equivalent to an "orthogonal direction" of the present invention. A circumferential direction of the passage portion 63 is simply referred to as the circumferential direction.
In the guide main body 60, an end face on one side (i.e., the left side in FIG. 4) in the extending direction is the contact surface 62. The oil passage 64 is formed across the guide main body 60 and the passage portion 63. The oil passage 64 extends along the extending direction. One end portion of the oil passage 64 on one side (i.e., the left side in FIG. 4) in the extending direction is connected to a nozzle 61. The nozzle 61 connects one end portion of the oil passage 64 on one side in the extending direction to the discharge port 61a formed in the contact surface 62.
The guide main body 60 is provided with a pair of yarn guiding members 68 on both sides of the discharge port 61a in the arrangement direction orthogonal to the yarn running direction (i.e., up-down direction). The yarn guiding members 68 protrude from the contact surface 62 toward one side (i.e., protrude leftward from the contact surface 62 in FIG. 4) in the extending direction. The yarn Y which is sent to the downstream side of the upstream yarn guide 21 passes between the paired yarn guiding members 68 and is guided downward by the paired yarn guiding members 68.
As shown in FIG. 4 and FIGs. 6(a) and 6(b), the holder 7 has a covering portion 71 and a connection portion 78. The covering portion 71 and the connection portion 78 are integrated with each other. The covering portion 71 is cylindrical in shape. The covering portion 71 is provided to be coaxial with the passage portion 63 of the oil supply guide 6, and is able to cover the outer circumferential surface of the passage portion 63. The connection portion 78 is provided at an end portion of the covering portion 71 on the other side (i.e., the right side in FIG. 4) in the extending direction. In the connection portion 78, a connection passage 79 is formed and connected to the other end portion of the oil passage 64 on the other side (i.e., the right side in FIG. 4) in the extending direction. The connection passage 79 extends along the extending direction.
The oil supplied from the oil tank 70 is sent to the oil passage 64 of the oil supply guide 6 via the connection passage 79 of the holder 7. The oil sent to the oil passage 64 is discharged from the nozzle 61 connected to one end portion of the oil passage 64 on one side in the extending direction.
As shown in FIG. 8, two second spaces 65 are formed to be independent from the oil passage 64 in the passage portion 63 of the oil supply guide 6. The second spaces 65 are formed at a part of the passage portion 63 in the circumferential direction. The two second spaces 65 are provided to oppose each other over the oil passage 64 in the arrangement direction. Each second space 65 is defined by a concave groove 66 formed at the passage portion 63. Each concave groove 66 is formed by a bottom surface 66a which is a single flat surface and wall surfaces 66b which are two flat surfaces orthogonal to the extending direction. The two wall surfaces 66b are provided at the respective ends of the bottom surface 66a in the extending direction. The wall surfaces 66b are equivalent to a "fourth orthogonal surface" of the present invention. The bottom surface 66a is in parallel to the extending direction. The bottom surface 66a intersects the circumferential direction. The bottom surface 66a is a flat surface extending along the up-down direction. The bottom surfaces 66a of the two second spaces 65 are provided on both sides of the oil passage 64 over the oil passage 64 in the arrangement direction orthogonal to the extending direction. Each second space 65 is open to the outer circumferential surface of the passage portion 63.
As shown in FIG. 8, two first spaces 72 are formed in the covering portion 71 of the holder 7. The first spaces 72 are provided at a part of the covering portion 71 in the circumferential direction. The two first spaces 72 are provided on both sides of a center axis O of the covering portion 71 in the arrangement direction. Each first space 72 is defined by a through hole 73 which penetrates the covering portion 71 from the inner to the outer surface of the covering portion 71. The inner surface of the covering portion 71 opposes the outer circumferential surface of the passage portion 63. That is, each first space 72 has openings on both the inner and outer surfaces of the covering portion 71.
Each through hole 73 is formed by wall surfaces 73a which are two flat surfaces in parallel to the extending direction and wall surfaces 73b which are two flat surfaces orthogonal to the extending direction. The two wall surfaces 73b are provided at both end portions of the wall surfaces 73a in the extending direction (see FIG. 6(b)). The wall surfaces 73b are equivalent to a "third orthogonal surface" of the present invention. The wall surfaces 73a intersect the circumferential direction. The wall surfaces 73a extend along the up-down direction. In FIG. 8, two wall surfaces 73a forming a through hole 73 defining right one of the first spaces 72 are provided on a single plane S0 orthogonal to the arrangement direction. In FIG. 8, two wall surfaces 73a forming a through hole 73 defining left one of the first spaces 72 are provided on a single plane S1 orthogonal to the arrangement direction. The planes S0 and S1 are provided on both sides of the center axis O in the arrangement direction.
The two first spaces 72 and the two second spaces 65 can be aligned in the up-down direction while the covering portion 71 covers the outer circumferential surface of the passage portion 63. As shown in FIG. 8, when the second spaces 65 and the first spaces 72 are aligned in the up-down direction, a single bottom surface 66a of each second space 65 and two wall surfaces 73a of each first space 72 are provided on the same plane (plane S0, plane S1) orthogonal to the arrangement direction.
As shown in FIG. 8, the fixing member 8 is provided with two fitting portions 82 which are able to be fit into the second spaces 65 and the first spaces 72. Each fitting portion 82 extends across a second space 65 and a first space 72 aligned in the up-down direction, and is fitted into the second space 65 and the first space 72. In regard to the two fitting portions 82, parts which are fitted into the second spaces 65 and the first spaces 72 are provided to oppose each other over the passage portion 63 in the arrangement direction. The fixing member 8 is configured to fix the position of the oil supply guide 6 to that of the holder 7 by fitting the fitting portions 82 into the second spaces 65 and the first spaces 72 and causing each fitting portion 82 to make contact with a bottom surface 66a and wall surfaces 73a. That is, the fixing member 8 functions as a bolt.
As shown in FIG. 7, the fixing member 8 is formed of a first part 81 in which the fitting portions 82 are formed and a second part 83 which is adjacent to the first part 81. The first part 81 and the second part 83 are aligned in the up-down direction. In the fixing member 8, an opening 80 is formed across the first part 81 and the second part 83. The opening 80 penetrates the fixing member 8 made of sheet metal in a thickness direction of the fixing member 8. The opening 80 has a closed perimeter. In other words, the opening 80 is not open in a direction orthogonal to the thickness direction of the fixing member 8. The opening 80 has a part which is formed at the second part 83 and which is larger than the outer shape of covering portion 71 of the holder 7.
The fixing member 8 is able to take a first position (see FIG. 9(a)) where the covering portion 71 of the holder 7 is inserted into a part of the opening 80 at the first part 81 and a second position (see FIG. 9(b)) where the covering portion 71 of the holder 7 is inserted into a part of the opening 80 at the second part 83. The first position is provided below the second position in the up-down direction. The fixing member 8 at the second position is not in contact with the wall surfaces 73a of the holder 7 and the bottom surfaces 66a of the oil supply guide 6. The fixing member 8 at the second position is movable in the extending direction. By moving the fixing member 8 at the second position downward to the first position, the fitting portions 82 are fitted into the respective second spaces 65 and the respective first spaces 72 so as to make contact with the wall surfaces 73a of the holder 7 and the bottom surfaces 66a of the oil supply guide 6. A fitting direction in which each fitting portion 82 is fitted into a second space 65 and a first space 72 is the up-down direction (the direction of a straight line).
The opening 80 has a part which is formed at the first part 81 and which extends in the up-down direction. At the first part 81, the opening 80 is defined by surfaces including flat surfaces 81a extending along the up-down direction. As shown in FIG. 8, when the two fitting portions 82 are fitted into the respective second spaces 65 and the respective first spaces 72, each flat surface 81a is in contact with (i) the entire bottom surface 66a of each concave groove 66 and (ii) two wall surfaces 73a of each through hole 73. In this regard, the entire bottom surface 66a of each concave groove 66 and two wall surfaces 73a of each through hole 73 are provided on the same plane.
The opening 80 has a part which is formed at the first part 81 and which extends in the up-down direction. When the two fitting portions 82 are not fitted into the second spaces 65 and the first spaces 72, the width of a lower end portion of this part is slightly narrower in the arrangement direction than that of an upper end portion of this part in the opening 80. This part of the opening 80 at the first part 81 is widened in the arrangement direction as the two fitting portions 82 are fitted into the respective second spaces 65 and the respective first spaces 72. With this arrangement, the fixing member 8 is able to sandwich the covering portion 71 by means of elastic force from both sides of the covering portion 71 in the arrangement direction by fitting the two fitting portions 82 into the respective second spaces 65 and the respective first spaces 72.
When the two fitting portions 82 of the fixing member 8 are fitted into the respective second spaces 65 and the respective first spaces 72, the position of the fixing member 8 in the circumferential direction is fixed by the wall surfaces 73a of the first spaces 72 formed at the holder 7. That is, the wall surfaces 73a are equivalent to a first contact surface of the present invention.
To be more specific, as shown in FIG. 8, the movement of the fixing member 8 in one direction (clockwise direction) of the circumferential direction is regulated by (i) lower one of two wall surfaces 73a of the right first space 72 and (ii) upper one of two wall surfaces 73a of the left first space 72. The movement of the fixing member 8 in the other direction (counterclockwise direction) of the circumferential direction is regulated by (i) upper one of two wall surfaces 73a of the right first space 72 and (ii) lower one of two wall surfaces 73a of the left first space 72. With this arrangement, the position of the fixing member 8 is fixed in the circumferential direction.
The bottom surfaces 66a of the two second spaces 65 formed at the oil supply guide 6 are arranged to fix the position of the oil supply guide 6 in the circumferential direction by making contact with the two fitting portions 82 of the fixing member 8 whose position is fixed in the circumferential direction. That is, the bottom surfaces 66a are equivalent to a second contact surface of the present invention. The bottom surfaces 66a also are equivalent to a passage-portion contact surface of the present invention.
To be more specific, as shown in FIG. 8, the movement of the oil supply guide 6 in one direction (indicated by an arrow D1: clockwise direction) of the circumferential direction is regulated by (i) a flat surface 81a of the right fitting portion 82 in contact with an upper part of a bottom surface 66a of the right second space 65 and (ii) a flat surface 81a of the left fitting portion 82 in contact with a lower part of a bottom surface 66a of the left second space 65. The upper part of the bottom surface 66a of the right second space 65 and the lower part of the bottom surface 66a of the left second space 65 are oriented in the above-described one direction of the circumferential direction.
The movement of the oil supply guide 6 in the other direction (indicated by an arrow D2: counterclockwise direction) of the circumferential direction is regulated by (i) a flat surface 81a of the right fitting portion 82 in contact with a lower part of a bottom surface 66a of the right second space 65 and (ii) a flat surface 81a of the left fitting portion 82 in contact with an upper part of a bottom surface 66a of the left second space 65. The lower part of the bottom surface 66a of the right second space 65 and the upper part of the bottom surface 66a of the left second space 65 are oriented in the above-described other direction of the circumferential direction. With this arrangements, the position of the oil supply guide 6 is fixed in the circumferential direction.
When the two fitting portions 82 of the fixing member 8 are fitted into the respective second spaces 65 and the respective first spaces 72, the movement of the fixing member 8 in the arrangement direction is regulated by the bottom surfaces 66a of the second spaces 65 and the wall surfaces 73a of the first spaces 72. In other words, the movement of the fixing member 8 toward one side (i.e., the right side in FIG. 8) in the arrangement direction is regulated by a bottom surface 66a of the left second space 65 and two wall surfaces 73a of the left first space 72 as shown in FIG. 8. The movement of the fixing member 8 toward the other side (i.e., the left side in FIG. 8) in the arrangement direction is regulated by a bottom surface 66a of the right second space 65 and two wall surfaces 73a of the right first space 72 as shown in FIG. 8.
The length of each second space 65 of the oil supply guide 6 in the extending direction (i.e., the distance between each two wall surfaces 66b) is defined as L1 (see FIG. 5(b)), the length of each first space 72 of the holder 7 in the extending direction (i.e., the distance between each two wall surfaces 73b) is defined as L2 (see FIG. 6(b)), and the length of each fitting portion 82 in the extending direction (i.e., the thickness of the fixing member 8) is defined as L3 (see FIG. 4). In this case, the lengths L1, L2, and L3 are substantially identical with one another. To be more specific, the length L1 of the second space 65 and the length L2 of the first space 72 are arranged so that the fitting portion 82 is completely fitted into the second space 65 and the first space 72 in regard to the extending direction. The both end faces of the fitting portion 82 fitted into the second space 65 and the first space 72 in the extending direction are in contact with wall surfaces 66b of the second space 65 and wall surfaces 73b of the first space 72. In other words, the fitting portion 82 is sandwiched by (i) the two wall surfaces 66b of the second space 65 and (ii) the two wall surfaces 73b of the first space 72 from both sides of the fitting portion 82 in the extending direction.
As shown in FIG. 5(b), two protrusions 67 are provided at one end portion of the passage portion 63 of the oil supply guide 6 on one side in the extending direction. One of the two protrusions 67 is provided at an upper part of the passage portion 63 so as to protrude upward from the outer circumferential surface of the passage portion 63. The other of the two protrusions 67 is provided at a lower part of the passage portion 63 so as to protrude downward from the outer circumferential surface of the passage portion 63.
As shown in FIG. 6(a), two cutouts 74 are provided at an end portion of the covering portion 71 of the holder 7 on one side in the extending direction. The two cutouts 74 form a concave portion at the edge of the covering portion 71, which is concave in the extending direction. That is, the cutouts 74 are equivalent to a concave portion of the present invention. One of the two cutouts 74 is provided at an upper part of the covering portion 71. The other of the two cutouts 74 is provided at a lower part of the covering portion 71. Into the two cutouts 74 provided at the holder 7, the two protrusions 67 provided at the oil supply guide 6 are respectively fitted.
As shown in FIG. 4, an annular packing 9 is provided between the oil supply guide 6 and the holder 7. The packing 9 seals a gap between the oil supply guide 6 and the holder 7 across the entire circumference of the oil supply guide 6. The packing 9 is made of an elastic material such as rubber. In the extending direction, the packing 9 is provided between the first space 72 and a connection end portion 79a of the connection passage 79. The connection end portion 79a is connected to the other end portion of the oil passage 64 on the other side (i.e., the right side in FIG. 4) in the extending direction. The inner surface of the covering portion 71 of the holder 7 is provided with a groove 76 formed across the entire circumference of the covering portion 71. The groove 76 is provided between the first space 72 and a connection surface 78a of the connection portion 78. In this regard, the connection end portion 79a of the connection passage 79 is open to the connection passage 78a. The packing 9 is provided in the groove 76.

(Arrangements of First Embodiment)

In the above-described false-twist texturing machine 1 of the present embodiment, a oiling device 20 includes: the holder 7 attached to the supporting frame 19; the oil supply guide 6 which includes the discharge port 61a and the paired yarn guiding members 68 and which is attachable to and detachable from the holder 7; the fixing member 8 configured to fix the oil supply guide 6 to the holder 7; and the packing 9 provided between the oil supply guide 6 and the holder 7. In this regard, oil is discharged from the discharge port 61a, and the paired yarn guiding members 68 are provided on both sides of the discharge port 61a in a direction orthogonal to the yarn running direction and are configured to guide a yarn Y. The oil supply guide 6 includes the cylindrical passage portion 63 in which the oil passage 64 is formed. The holder 7 includes the cylindrical covering portion 71 which is coaxial with the passage portion 63 and which is able to cover the outer circumferential surface of the passage portion 63. The holder 7 is provided with the wall surfaces 73a which can make contact with the fixing member 8, and the oil supply guide 6 is provided with the bottom surfaces 66a which can make contact with the fixing member 8. The wall surfaces 73a are arranged to fix the position of the fixing member 8 in the circumferential direction of the passage portion 63 by making contact with the fixing member 8. The bottom surfaces 66a are arranged to fix the position of the oil supply guide 6 in the circumferential direction by making contact with the fixing member 8 whose position is fixed by the wall surfaces 73a in the circumferential direction.
With this arrangement, the position of the oil supply guide 6 on a plane orthogonal to the extending direction of the passage portion 63 (i.e., a plane in parallel to both the up-down direction and the arrangement direction) is fixed by inserting the passage portion 63 into the covering portion 71 so that the outer circumferential surface of the passage portion 63 is covered by the covering portion 71. Therefore, the reproducibility of a position of the oil supply guide 6 with respect to a yarn path is ensured by covering the outer circumferential surface of the passage portion 63 with the covering portion 71. Furthermore, the reproducibility of posture of the oil supply guide 6 is ensured by causing the fixing member 8 to make contact with the wall surfaces 73a of the holder 7 and the bottom surfaces 66a of the oil supply guide 6 so that the position of the oil supply guide 6 is fixed in the circumferential direction. The oil supply guide 6 is easily fixed by covering the outer circumferential surface of the passage portion 63 with the covering portion 71 and causing the fixing member 8 to make contact with the wall surfaces 73a of the holder 7 and the bottom surfaces 66a of the oil supply guide 6.
In the false-twist texturing machine 1 of the present embodiment, the holder 7 is provided with the cutouts 74 which are concave in the extending direction, and the oil supply guide 6 is provided with the protrusions 67 which can be fit into the cutouts 74. With this arrangement, the alignment of the oil supply guide 6 and the holder 7 with respect to the circumferential direction is facilitated by fitting the protrusions 67 of the oil supply guide 6 into the cutouts 74 of the holder 7.
In the false-twist texturing machine 1 of the present embodiment, the oil supply guide 6 is structured so that the bottom surfaces 66a which are contact surfaces with the fixing member 8 are provided on both sides of the oil passage 64 in the arrangement direction orthogonal to the extending direction. In order to improve the accuracy of reproducibility of posture of the oil supply guide 6, the contact surfaces (i.e., the surfaces equivalent to the second contact surface of the present invention) of the oil supply guide 6 with respect to the fixing member 8 are preferably large. When (i) processing is performed so that the oil supply guide 6 has the contact surfaces with the fixing member 8 and (ii) the oil supply guide 6 disadvantageously has an acute angle and a thin part because of the processing, the oil supply guide 6 may get damaged or oil leakage may occur because of an error in the processing of the oil supply guide 6. Because the oil supply guide 6 is made of ceramics in the present embodiment, the oil supply guide 6 of the present embodiment is highly likely to get damaged. Therefore, accurate processing is required. The present embodiment makes it possible to ensure the large bottom surfaces 66a which are the contact surfaces with the fixing members 8 with simple processing, and to improve the accuracy of reproducibility of posture of the oil supply guide 6.
In the false-twist texturing machine 1 of the present embodiment, each bottom surface 66a of the oil supply guide 6 and each two wall surfaces 73a of the holder 7 can be provided on the same plane, and the fixing member 8 includes each flat surface 81a arranged to make contact with a bottom surface 66a of the oil supply guide 6 and wall surfaces 73a of the holder 7 which are provided on the same plane. This simplifies the shape of the fixing member 8.
In the false-twist texturing machine 1 of the present embodiment, each of the length L1 of each second space 65 in the extending direction (i.e., the distance between each two wall surfaces 66b) and the length L2 of each first space 72 in the extending direction (i.e., the distance between each two wall surfaces 73b) is substantially identical with the length L3 of each fitting portion 82 in the extending direction. With this arrangement, the fitting portion 82 fitted into the second space 65 and the first space 72 is sandwiched by (i) the wall surfaces 66b of the oil supply guide 6 and (ii) the wall surfaces 73b of the holder 7 from both sides of the fitting portion 82 in the extending direction. Because of this, the position of the oil supply guide 6 and that of the holder 7 are decided in the extending direction.
In the false-twist texturing machine 1 of the present embodiment, the groove 76 in which the packing 9 is provided is formed on the inner surface of the covering portion 71 of the holder 7. With this arrangement, when the oil supply guide 6 is moved with respect to the holder 7, the packing 9 is unlikely to move.
In the false-twist texturing machine 1 of the present embodiment, wall surfaces 73a formed at the holder 7 and a bottom surface 66a formed at the oil supply guide 6 are provided on each side of the center axis O of the covering portion 71 in the arrangement direction orthogonal to the extending direction. The fixing member 8 is made of a material having the elastic force, and configured to sandwich the passage portion 63 by means of the elastic force from both sides of the passage portion 63 in the arrangement direction by making contact with the wall surfaces 73a and the bottom surface 66a which are provided on each side of the center axis O in the arrangement direction. With this arrangement, the fixing member 8 is unlikely to move, and the position of the oil supply guide 6 is stably fixed to that of the holder 7.
In the false-twist texturing machine 1 of the present embodiment, the fixing member 8 is formed of the first part 81 in which each fitting portion 82 arranged to make contact with the wall surfaces 73a of the holder 7 and the bottom surface 66a of the oil supply guide 6 is formed and the second part 83 which is adjacent to the first part 81. The opening 80 is formed across the first part 81 and the second part 83. The opening 80 has a part which is formed at the second part 83 and which is larger than the outer shape of the covering portion 71 of the holder 7. The fixing member 8 is able to take the first position where the covering portion 71 of the holder 7 is inserted into a part of the opening 80 at the first part 81 so that each fitting portion 82 is in contact with the wall surfaces 73a and the bottom surface 66a and the second position where the covering portion 71 of the holder 7 is inserted into a part of the opening 80 at the second part 83 so that each fitting portion 82 is not in contact with the wall surfaces 73a and the bottom surface 66a. With this arrangement, the fixing member 8 at the first position fixes the oil supply guide 6 to the holder 7, and the fixing member 8 at the second position removes the fixation from the oil supply guide 6 to the holder 7. Even when the fixation from the oil supply guide 6 to the holder 7 is removed, the covering portion 71 of the holder 7 is still inserted into the opening 80 of the fixing member 8. It is therefore possible to avoid losing the fixing member 8.
In the false-twist texturing machine 1 of the present embodiment, the first position of the fixing member 8 is below the second position of the fixing member 8 in the up-down direction. With this arrangement, as long as external force which lifts up the fixing member 8 is not applied to the fixing member 8, the fixing member 8 is provided by means of the gravity at the first position where the oil supply guide 6 is fixed to the holder 7. This prevents the fixing member 8 from unintentionally moving from the first position to the second position, and thus the fixation from the oil supply guide 6 to the holder 7 is also prevented from being removed.
In the false-twist texturing machine 1 of the present embodiment, the wall surfaces 73a equivalent to the first contact surface of the present invention and the bottom surfaces 66a equivalent to the second contact surface of the present invention are flat surfaces. With this arrangement, the holder 7 and the oil supply guide 6 are easily processed as compared to a case where, e.g., the fitting portions 82 are screws and the first contact surface and the second contact surface define screw grooves.
In the false-twist texturing machine 1 of the present embodiment, the oil supply guide 6 is made of ceramics. For example, assume that the fitting portions 82 are screws and the oil supply guide 6 is made of ceramics. In this case, when the fitting portions 82 of the fixing member 8 are fitted into the second spaces 65 of the oil supply guide 6 so as to fix the position of the oil supply guide 6, the oil supply guide 6 may be broken. In the present embodiment, even when the oil supply guide 6 is made of ceramics, the breakage of the oil supply guide 6 is suppressed.
In the false-twist texturing machine 1 of the present embodiment, the annular packing 9 is provided between the oil supply guide 6 and the holder 7. With this arrangement, a gap between the oil supply guide 6 and the holder 7 across the entire circumference of the oil supply guide 6 is sealed by the single packing 9. Processing of the packing 9 is therefore facilitated.
In the false-twist texturing machine 1, oil is additionally applied to a yarn Y to which oil has been applied. Therefore, a required application amount of oil applied to the yarn Y is small. The oil supply guide 6 is able to suppress the application amount of oil applied to the yarn Y to be relatively small. Therefore, the oiling device 20 including the oil supply guide 6 is preferably used in the false-twist texturing machine 1. In the present embodiment, when the oiling device 20 including the oil supply guide 6 is used in the false-twist texturing machine 1, the reproducibility of a position and posture of the oil supply guide 6 with respect to a yarn path is easily ensured.
The false-twist texturing machine 1 of the present embodiment includes each upstream yarn guide 21 and each downstream yarn guide 22 which are separated from each other in the yarn running direction in which the yarn Y runs. The holder 7 is provided between the upstream yarn guide 21 and the downstream yarn guide 22. It is therefore possible to ensure the reproducibility of a position and posture of the oil supply guide 6 with respect to the yarn path of the yarn Y guided by the upstream yarn guide 21 and the downstream yarn guide 22, and to easily fix the oil supply guide 6.

The following will describe how an oil supply guide 6 of a second embodiment of the present invention is fixed, with reference to FIG. 10. In the present embodiment, (i) first spaces 72 formed at a holder 7 and (ii) a fixing member 8 are mainly different from those in the first embodiment. The components having the same structures as those in the first embodiment are given the same reference numerals, and the description thereof will be omitted.
In the first embodiment, two first spaces 72 are formed at the holder 7. Each first space 72 is defined by a through hole 73 formed of two wall surfaces 73a which are provided on a single plane (plane S0, plane S1) orthogonal to the arrangement direction. In the present embodiment, four first spaces 72 are formed at the holder 7. Each first space 72 is defined by a through hole 73 formed of two wall surfaces 73a (i.e., surfaces orthogonal to the circumferential direction) which are provided to oppose each other in the arrangement direction.
While a covering portion 71 covers the outer circumferential surface of a passage portion 63, two of the four first spaces 72 can be provided above and below one of two second spaces 65. The other two of the four first spaces 72 can be provided above and below the other of the two second spaces 65. In regard to each second space 65, a bottom surface 66a of the second space 65, one of two wall surfaces 73a of a first space 72 provided above the second space 65, and one of two wall surfaces 73a of a first space 72 provided below the second space 65 are provided on a single plane S2 orthogonal to the arrangement direction. Furthermore, the other of two wall surfaces 73a of the first space 72 provided above the second space 65 and the other of two wall surfaces 73a of the first space 72 provided below the second space 65 are not provided on the plane S2 but provided on a single plane S3 orthogonal to the arrangement direction.
The fixing member 8 of the present embodiment includes two fitting portions 82 and a connection portion 183 which connects the two fitting portions 82. The fitting portions 82 are rod-shaped members. The two fitting portions 82 are in parallel to each other at longitudinal parts of the two fitting portions 82. In this regard, end portions of the longitudinal parts of the two fitting portions 82 are connected by the connection portion 183.
The two fitting portions 82 are fitted into the second spaces 65 and the first spaces 72 so that its above-described end portions connected by the connection portion 183 are respectively provided above its opposite end portions. Each fitting portion 82 is fitted into and across a second space 65 and two first spaces 72 provided above and below the second space 65. In this regard, two wall surfaces 73a of each first space 72 which are provided to oppose each other in the arrangement direction are arranged to make contact with both end faces of the fitting portion 82 fitted into the first space 72 in the arrangement direction.
When the two fitting portions 82 of the fixing member 8 are fitted into the second spaces 65 and the first spaces 72, the position of the fixing member 8 in the circumferential direction is fixed by the wall surfaces 73a of the first spaces 72 formed at the holder 7. At this time, each fitting portion 82 has a part which is fitted into a first space 72 and which is sandwiched from both sides in the circumferential direction by two wall surfaces 73a of the first space 72. The wall surfaces 73a are equivalent to the first contact surface of the present invention. The bottom surfaces 66a of the second spaces 65 formed at the oil supply guide 6 are arranged to fix the position of the oil supply guide 6 in the circumferential direction by making contact with the two fitting portions 82 of the fixing member 8 whose position is fixed in the circumferential direction. That is, the bottom surfaces 66a are equivalent to the second contact surface of the present invention.
When the two fitting portions 82 of the fixing member 8 are fitted into the second spaces 65 and the first space 72, each fitting portion 82 is sandwiched in the arrangement direction by a bottom surface 66a of a second space 65 and wall surfaces 73a of two first spaces 72, i.e., by (i) a bottom surface 66a and two wall surfaces 73a which are provided on the plane S2 and (ii) two wall surfaces 73a which are provided on the plane S3. With this arrangement, the movement of the fixing member 8 is regulated in the arrangement direction.
In the present embodiment, the two fitting portions 82 provided at the fixing member 8 may be independent from each other. For example, two fixing members 8 may be provided so that each fixing member 8 includes a corresponding fitting portion 82. As described above, each fitting portion 82 is sandwiched in the arrangement direction by a bottom surface 66a of a second space 65 and wall surfaces 73a of two first spaces 72, i.e., by (i) a bottom surface 66a and two wall surfaces 73a which are provided on the plane S2 and (ii) two wall surfaces 73a which are provided on the plane S3. With this arrangement, even when two fixing members 8 are provided, the movement of each fixing member 8 in the arrangement direction is regulated. As such, the fixing member 8 may be separated into plural parts each of which is regulated from moving in the arrangement direction.

(Arrangements of Second Embodiment)

As described above, the present embodiment makes it possible to easily ensure the reproducibility of a position of the oil supply guide 6 as in the first embodiment.
In the present embodiment, each through hole 73 which defines a single first space 72 includes two wall surfaces 73a arranged to sandwich a fitting portion 82 from both sides of the fitting portion 82 in the circumferential direction. With this arrangement, the position of the fixing member 8 is fixed in the circumferential direction by fitting each fitting portion 82 into a single first space 72.

The following will describe how an oil supply guide 6 of a third embodiment of the present invention is fixed, with reference to FIG. 11. In the present embodiment, (i) a second space 65 provided at the oil supply guide 6, (ii) a first space 72 formed at a holder 7, and (iii) a fixing member 8 are mainly different from those in the first embodiment. The components having the same structures as those in the first embodiment are given the same reference numerals, and the description thereof will be omitted.
In the first embodiment, two second spaces 65 are formed at the oil supply guide 6. Each second space 65 is defined by a concave groove 66 formed of a single bottom surface 66a and two wall surfaces 66b orthogonal to the extending direction. In the present embodiment, a single second space 65 is formed at the oil supply guide 6. The second space 65 is defined by a hole 266. The hole 266 includes a single bottom surface 66a, two wall surfaces 66b orthogonal to the extending direction, and two wall surfaces 266c which are parallel to the extending direction. The two wall surfaces 266c are provided to oppose each other in the arrangement direction.
In the first embodiment, two first spaces 72 are formed at the holder 7. Two wall surfaces 73a of each first space 72 are provided on a single plane (plane S0, plane S1) orthogonal to the arrangement direction. In the present embodiment, a single first space 72 is formed at the holder 7. Two wall surfaces 73a (orthogonal to the circumferential direction) of the single first space 72 are provided to oppose each other in the arrangement direction.
While a covering portion 71 covers the outer circumferential surface of a passage portion 63, the first space 72 can be provided above the second space 65. In this regard, one (right surface in FIG. 11) of the two wall surfaces 266c of the second space 65 and one (right surface in FIG. 11) of the two wall surfaces 73a of the first space 72 are provided on a single plane S4 orthogonal to the arrangement direction. The other (left surface in FIG. 11) of the two wall surfaces 266c and the other (left surface in FIG. 11) of the two wall surfaces 73a are provided on a single plane S5 orthogonal to the arrangement direction.
A fixing member 8 of the present embodiment includes a single fitting portion 82. The fitting portion 82 is a rod-shaped member. An end portion of a longitudinal part of the fitting portion 82 is provided with an top portion 283. The fitting portion 82 is fitted into the second space 65 and the first space 72 so that the top portion 283 (i.e., the above-described end portion of the longitudinal part of the fitting portion 82) is provided above the opposite end portion of the longitudinal part of the fitting portion 82. The fitting portion 82 is fitted into and across the second space 65 and the first space 72. In this regard, both end faces of the fitting portion 82 in the arrangement direction are arranged to make contact with the two wall surfaces 266c of the second space 65 which are provided to oppose each other in the arrangement direction and the two wall surfaces 73a of the first space 72 which are provided to oppose each other in the arrangement direction. In the longitudinal part of the fitting portion 82, an end portion opposite to the top portion 283 is arranged to make contact with the bottom surface 66a of the second space 65.
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 surfaces 73a of the first space 72 formed at the holder 7. At this time, the fitting portion 82 is sandwiched from both sides of the fitting portion 82 in the circumferential direction by the two wall surfaces 73a of the single first space 72. That is, the wall surfaces 73a are equivalent to the first contact surface of the present invention. Furthermore, the fitting portion 82 is sandwiched from both sides of the fitting portion 82 in the circumferential direction by the two wall surfaces 266c of the second space 65. The two wall surfaces 266c of the single second space 65 formed at the oil supply guide 6 are arranged to fix the position of the oil supply guide 6 in the circumferential direction by making contact with the fitting portion 82 of the fixing member 8 whose position is fixed in the circumferential direction. That is, the wall surfaces 266c are equivalent to the second contact surface of the present invention.
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 arrangement direction by the wall surfaces 266c of the second space 65 and the wall surfaces 73a of the first space 72, i.e., by (i) a wall surface 266c and a wall surface 73a which are provided on the plane S4 and (ii) a wall surface 266c and a wall surface 73a which are provided on the plane S5. With this arrangement, the movement of the fixing member 8 is regulated in the arrangement direction.

(Arrangements of Third Embodiment)

As described above, the present embodiment makes it possible to easily ensure the reproducibility of a position of the oil supply guide 6 as in the first embodiment.
In the present embodiment, a through hole 73 which defines the single first space 72 includes the two wall surfaces 73a arranged to sandwich the fitting portion 82 from both sides of the fitting portion 82 in the circumferential direction. With this arrangement, the position of the fixing member 8 is fixed in the circumferential direction by fitting the single fitting portion 82 into the first space 72.
In the present embodiment, the wall surfaces 266c which define the single second space 65 are arranged to fix the position of the oil supply guide 6 in the circumferential direction by making contact with the fitting portion 82 of the fixing member 8. With this arrangement, the position of the oil supply guide 6 in the circumferential direction is fixed by fitting the fitting portion 82 into the single second space 65.

The following will describe how an oil supply guide 6 of a fourth embodiment of the present invention is fixed, with reference to FIG. 12. In the present embodiment, (i) a second space 65 provided at the oil supply guide 6, (ii) first spaces 72 provided at a holder 7, and (iii) a fixing member 8 are mainly different from those in the first embodiment. The components having the same structures as those in the first embodiment are given the same reference numerals, and the description thereof will be omitted.
In the first embodiment, two second spaces 65 are formed at the oil supply guide 6. Each second space 65 is defined by a concave groove 66 formed of a single bottom surface 66a and two wall surfaces 66b orthogonal to the extending direction. In the present embodiment, a single second space 65 is formed at the oil supply guide 6. The second space 65 is defined by a hole 366. The hole 366 includes a single bottom surface 66a, two wall surfaces 66b orthogonal to the extending direction, and two wall surfaces 366c which are parallel to the extending direction. The two wall surfaces 366c are provided to oppose each other in the arrangement direction.
In the first embodiment, two first spaces 72 are formed at the holder 7. Each first space 72 is defined by a through hole 73. In the present embodiment, each first space 72 is defined by a concave groove 373. Each concave groove 373 is formed of a single bottom surface 373a and two wall surfaces 73b orthogonal to the extending direction. At a covering portion 71 of the holder 7, a through hole 375 is formed in addition to the concave grooves 373 which define the first spaces 72.
While the covering portion 71 covers the outer circumferential surface of a passage portion 63, the through hole 375 can be provided above the second space 65. In this regard, the two first spaces 72 are provided on both sides of the through hole 375 in the arrangement direction.
The fixing member 8 of the present embodiment includes three fitting portions 82 and a connection portion 383 which connects the three fitting portions 82. The fitting portions 82 are rod-shaped members. The three fitting portions 82 are in parallel to one other at longitudinal parts of the three fitting portions 82. The three fitting portions 82 are aligned in an orthogonal direction orthogonal to the longitudinal parts of the three fitting portions 82. In this regard, end portions of the longitudinal parts of the three fitting portions 82 are connected to one another by the connection portion 383. Among the three fitting portions 82 aligned in the orthogonal direction, two outermost fitting portions 82 in the orthogonal direction are identical in length with each another. Among the three fitting portions 82 aligned in the orthogonal direction, the central fitting portion 82 is shorter in length than other two fitting portions 82 (i.e., two outermost fitting portions 82).
The three fitting portions 82 are fitted into the second space 65 and the first spaces 72 so that its above-described end portions connected by the connection portion 383 are respectively provided above its opposite end portions of the three fitting portions 82. Among the three fitting portions 82 aligned in the orthogonal direction, two outermost fitting portions 82 in the orthogonal direction are respectively fitted into the two first spaces 72. In this regard, the two outermost fitting portions 82 in the orthogonal direction are in contact with the entire bottom surfaces 373a of the first spaces 72. Among the three fitting portions 82 aligned in the orthogonal direction, the central fitting portion 82 is fitted into the second space 65 through the through hole 375.
When the three fitting portions 82 of the fixing member 8 are fitted into the second space 65 and the first spaces 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 at the holder 7. That is, the bottom surfaces 373a are equivalent to the first contact surface of the present invention. Furthermore, one of the three fitting portions 82 is sandwiched from both sides of the one of the three fitting portions 82 in the circumferential direction by the two wall surfaces 366c of the second space 65. The two wall surfaces 366c of the single second space 65 formed at the oil supply guide 6 are arranged to fix the position of the oil supply guide 6 in the circumferential direction by making contact with the one of the three fitting portions 82 of the fixing member 8 whose position is fixed in the circumferential direction. That is, the wall surfaces 366c are equivalent to the second contact surface of the present invention. In this regard, wall surfaces of the through hole 375 do not make contact with the fitting portions 82.
When the three fitting portions 82 of the fixing member 8 are fitted into the second space 65 and the first spaces 72, the movement of the fixing member 8 in the arrangement direction is regulated by the two wall surfaces 366c of the second space 65 and the bottom surfaces 373a of the first spaces 72. In other words, the movement of the fixing member 8 toward one side (i.e., the right side in FIG. 12) in the arrangement direction is regulated by right one of the two wall surfaces 366c of the second space 65 and a bottom surface 373a of left one of the two first spaces 72 as shown in FIG. 12. The movement of the fixing member 8 toward the other side (i.e., the left side in FIG. 12) in the arrangement direction is regulated by left one of the two wall surfaces 366c of the second space 65 and a bottom surface 373a of right one of the two first spaces 72 as shown in FIG. 12.
Among the three fitting portions 82 provided at the fixing member 8 of the present embodiment, a fitting portion 82 fitted into the second space 65 (i.e., the central fitting portion 82 described above) may be independent from two fitting portions 82 fitted into the first spaces 72 (i.e., two outermost fitting portions 82 described above). For example, two fixing members 8 may be provided and structured so that the fitting portion 82 fitted into the second space 65 is provided at one fixing member 8 and the two fitting portions 82 fitted into the first spaces 72 are provided at the other fixing member 8. In this regard, the movement of one fixing member 8 in which the fitting portion 82 fitted into the second space 65 is provided is restricted in the arrangement direction by the two wall surfaces 366c of the second space 65. The movement of the other fixing member 8 in which the two fitting portions 82 fitted into the first spaces 72 are provided is restricted in the arrangement direction by the bottom surfaces 373a of the two first spaces 72. As such, the fixing member 8 may be separated into plural parts each of which is regulated from moving in the arrangement direction.

(Arrangements of Fourth Embodiment)

As described above, the present embodiment makes it possible to easily ensure the reproducibility of a position of the oil supply guide 6 as in the first embodiment.
In the present embodiment, the wall surfaces 366c which define the single second space 65 are arranged to fix the position of the oil supply guide 6 in the circumferential direction by making contact with one of the fitting portions 82 of the fixing member 8. With this arrangement, the position of the oil supply guide 6 in the circumferential direction is fixed by fitting the one of the fitting portions 82 into the single second space 65.

The following will describe how an oil supply guide 6 of a fifth embodiment of the present invention is fixed, with reference to FIG. 13. In the present embodiment, (i) a second space 65 provided at the oil supply guide 6 and (ii) first spaces 72 provided at a holder 7 are mainly different from those in the first embodiment. The components having the same structures as those in the first embodiment are given the same reference numerals, and the description thereof will be omitted.
In the first embodiment, two second spaces 65 are formed at the oil supply guide 6. Furthermore, two first spaces 72 defined by the through holes 73 are formed at the holder 7. In the present embodiment, a single second space 65 is formed at the oil supply guide 6. Furthermore, a single first space 72 defined by a through hole 73 and a single first space 72 defined by a concave groove 473 are formed at the holder 7. The two first spaces 72 are provided on both sides of a center axis O of a covering portion 71 in the arrangement direction.
The first space 72 defined by the through hole 73 and the second space 65 can be aligned in the up-down direction while the covering portion 71 covers the outer circumferential surface of a passage portion 63. One of two fitting portions 82 of a fixing member 8 is fitted into and across the second space 65 and this first space 72 which are aligned in the up-down direction. The other of the two fitting portions 82 of the fixing member 8 is fitted into the first space 72 defined by the concave groove 473. In this regard, the other of the two fitting portions 82 is fitted into this first space 72 so as to make contact with an entire bottom surface 473a which is parallel to the extending direction of the concave groove 473 which defines this first space 72.
When the two fitting portions 82 of the fixing member 8 are fitted into the second space 65 and the first spaces 72, the position of the fixing member 8 in the circumferential direction is fixed by (i) two wall surfaces 73a of the first space 72 defined by the through hole 73 and (ii) a bottom surface 473a of the first space 72 defined by the concave groove 473. In this regard, the wall surfaces 73a and the bottom surface 473a are formed at the holder 7. That is, the wall surfaces 73a and the bottom surface 473a are equivalent to the first contact surface of the present invention. A bottom surface 66a of the second space 65 formed at the oil supply guide 6 is arranged to fix the position of the oil supply guide 6 in the circumferential direction by making contact with one of the fitting portions 82 of the fixing member 8 whose position is fixed in the circumferential direction. That is, the bottom surface 66a is equivalent to the second contact surface of the present invention.
When the two fitting portions 82 of the fixing member 8 are fitted into the second space 65 and the first spaces 72, the movement of the fixing member 8 in the arrangement direction is regulated by (i) the single bottom surface 66a of a concave groove 66 which defines the second space 65, (ii) the two wall surfaces 73a of the through hole 73 which defines one of the first spaces 72, and (iii) the single bottom surface 473a of the concave groove 473 which defines the other of the first spaces 72.

(Arrangements of Fifth Embodiment)

As described above, the present embodiment makes it possible to easily ensure the reproducibility of a position of the oil supply guide 6 as in the first embodiment.

The following will describe how an oil supply guide 6 of a sixth embodiment of the present invention is fixed, with reference to FIG. 14. In the present embodiment, the position of a packing 9 is mainly different from that in the first embodiment. The components having the same structures as those in the first embodiment are given the same reference numerals, and the description thereof will be omitted.
In the first embodiment, the packing 9 is provided in the groove 76 formed on the inner surface of the covering portion 71 of the holder 7. In the present embodiment, a packing 9 is provided between an end face 63a of a passage portion 63 of the oil supply guide 6 (i.e., an end face in the right part of FIG. 14) and a connection surface 78a of a connection portion 78 of the holder 7. In this regard, one of both end portions of an oil passage 64 in the extending direction is open to the end face 63a, and a connection end portion 79a of a connection passage 79 is open to the connection surface 78a. The connection surface 78a is provided with an annular groove 576 which is a concave on the other side of the connection surface 78a in the extending direction (i.e., concave to the right side of the connection surface 78a in FIG. 14). The packing 9 is provided in this groove 576. With this arrangement, when the passage 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 toward one side in the extending direction by means of repellent force.
The length of each second space 65 of the oil supply guide 6 in the extending direction is defined as L4, the length of each first space 72 of the holder 7 in the extending direction is defined as L5, and the length of each fitting portion 82 in the extending direction (i.e., the thickness of the fixing member 8) is defined as L6. In this regard, each of the lengths L4 and L5 is longer than the length L6.
When fitting portions 82 of the fixing member 8 are fitted into and across second spaces 65 and first spaces 72 so as to make contact with bottom surfaces 66a of the oil supply guide 6 and wall surfaces 73a of the holder 7, one of wall surfaces 66b (i.e., surfaces orthogonal to the extending direction) of each second space 65 of the oil supply guide 6 makes contact with a wall surface of a fitting portion 82 on the other side in the extending direction. To be more specific, one (surface oriented in a direction opposite to the connection portion 78: surface equivalent to a second orthogonal surface of the present invention) of two wall surfaces 66b of each second space 65 is oriented to one side in the extending direction and makes contact with a fitting portion 82. Furthermore, one of wall surfaces 73b (i.e., surfaces orthogonal to the extending direction) of each first space 72 of the holder 7 makes contact with a wall surface of a fitting portion 82 on one side in the extending direction. To be more specific, one (surface oriented to the connection portion 78: surface equivalent to a first orthogonal direction of the present invention) of two wall surfaces 73b of each first space 72 is oriented to the other side in the extending direction and makes contact with a fitting portion 82. In other words, each fitting portion 82 is sandwiched from both sides of each fitting portion 82 in the extending direction by one of two wall surfaces 66b of a second space 65 and one of two wall surfaces 73b of a first space 72, i.e., a wall surface 66b oriented to one side in the extending direction and a wall surface 73b oriented to the other side in the extending direction. The oil supply guide 6 is biased by the packing 9 so that each wall surface 66b oriented to one side in the extending direction approaches each wall surface 73b oriented to the other side in the extending direction.

(Arrangements of Sixth Embodiment)

As described above, the present embodiment makes it possible to easily ensure the reproducibility of a position of the oil supply guide 6 as in the first embodiment.
In the present embodiment, the oil supply guide 6 is biased by the packing 9 so that one of two wall surfaces 66b of each second space 65 approaches one of two wall surfaces 73b of each first space 72, i.e., so that each wall surface 66b oriented to one side in the extending direction approaches each wall surface 73b oriented to the other side in the extending direction. With this arrangement, by sandwiching each fitting portion 82 of the fixing member 8 by a wall surface 66b oriented to one side in the extending direction and a wall surface 73b oriented to the other side in the extending direction, the oil supply guide 6 and the holder 7 are accurately positioned in the extending direction without accurate processing.
The embodiment of the present invention is described hereinabove. However, the specific structure of the present invention shall not be interpreted as to be limited to the above described embodiment. The scope of the present invention is defined not by the above embodiment but by claims set forth below, and shall encompass the equivalents in the meaning of the claims and every modification within the scope of the claims.
In the first embodiment described above, the two second spaces 65 and the two first spaces 72 are provided. In this regard, a single bottom surface 66a of one second space 65 and two wall surfaces 73a of one first space 72 are provided on the single plane S0. A single bottom surface 66a of the other second space 65 and two wall surfaces 73a of the other first space 72 are provided on the single plane S1. The planes S0 and S1 are orthogonal to the arrangement direction. However, the disclosure is not limited to this.
In a first modification of the first embodiment, as shown in FIG. 15, a plane S6 on which a single bottom surface 66a of one second space 65 (i.e., right second space 65 in FIG. 15) and two wall surfaces 73a of one first space 72 (i.e., right first space 72 in FIG. 15) are provided is inclined from a plane orthogonal to the arrangement direction. To be more specific, the plane S6 which is parallel to the extending direction is inclined so that upper one of these two wall surfaces 73a is provided on the other side in the arrangement direction as compared to lower one of the two wall surfaces 73a.
A plane S7 on which a single bottom surface 66a of the other second space 65 (i.e., left second space 65 in FIG. 15) and two wall surfaces 73a of the other first space 72 (i.e., left first space 72 in FIG. 15) are provided is also inclined from a plane orthogonal to the arrangement direction. To be more specific, the plane S7 which is parallel to the extending direction is inclined so that upper one of these two wall surfaces 73a is provided on one side in the arrangement direction as compared to lower one of the two wall surfaces 73a.
In the first embodiment described above, each fitting portion 82 fitted into a second space 65 and a first space 72 is arranged to make contact with a single bottom surface 66a of the first space 65 and two wall surfaces 73a of the first space 72. However, the disclosure is not limited to this.
In a second modification of the first embodiment, as shown in FIG. 16, each fitting portion 82 fitted into a second space 65 and a first space 72 is arranged to make contact with an upper part of a single bottom surface 66a of the second space 65 and upper one of two wall surfaces 73a of the first space 72. In this regard, each fitting portion 82 does not make contact with a lower part of the bottom surface 66a of the second space 65 and lower one of the two wall surfaces 73a of the first space 72.
In the second modification of the first embodiment, the movement of the oil supply guide 6 in one direction (clockwise direction) of the circumferential direction is regulated by a fitting portion 82 which is fitted into the right second space 65 and the right first space 72 and which is in contact with an upper part of a bottom surface 66a of the right second space 65 as shown in FIG. 16. The movement of the oil supply guide 6 in the other direction (counterclockwise direction) of the circumferential direction is regulated by a fitting portion 82 which is fitted into the left second space 65 and the left first space 72 and which is in contact with an upper part of a bottom surface 66a of the left second space 65 as shown in FIG. 16.
In the second embodiment, each fitting portion 82 is fitted into and across a second space 65 and two first spaces 72 provided above and below the second space 65. However, the disclosure is not limited to this. Each fitting portion 82 may be fitted into and across a second space 65 and a first space 72 provided above the second space 65.
In the third embodiment, the fitting portion 82 fitted into and across the second space 65 and the first space 72 is arranged to make contact with the bottom surface 66a of the second space 65. However, the disclosure is not limited to this. The fitting portion 82 may not make contact with the bottom surface 66a.
In the fourth and fifth embodiments, each fitting portion 82 is arranged to make contact with the entire bottom surface 373a/473a of a concave groove 373/473 which defines a first space 72. However, the disclosure is not limited to this. Each fitting portion 82 may be arranged to make contact with only a part of the bottom surface 373a/473a. In the fifth embodiment, one fitting member 82 fitted into and across the second space 65 and a first space 72 may not make contact with lower one of two wall surfaces 73a of the first space 72.
In the second and third embodiments, wall surfaces which define each first space 72 include two wall surfaces 73a arranged to sandwich a fitting portion 82 from both sides of the fitting portions 82 in the arrangement direction. However, the disclosure is not limited to this. The two wall surfaces 73a may be arranged to sandwich the fitting portion 82, e.g., in the up-down direction as long as the two wall surfaces 73a sandwich the fitting portion 82 in a direction intersecting with the extending direction.
In the fifth embodiment described above, as shown in FIG. 13, two wall surfaces 73a of the right first space 72 and the bottom surface 473a of the left first space 72 are equivalent to the first contact surface of the present invention. In a first modification of the fifth embodiment, when the oil supply guide 6 is fixed as shown in FIG. 17, only the bottom surface 473a of the left first space 72 is equivalent to the first contact surface of the present invention. That is, the two wall surfaces 73a of the right first space 72 do not make contact with a fitting portion 82 as shown in FIG. 17.
In the embodiments above, the passage portion 63 is provided at the oil supply guide 6, and the covering portion 71 is provided at the holder 7. However, the disclosure is not limited to this. The passage portion 63 may be provided at the holder 7 and the covering portion 71 may be provided at the oil supply guide 6.
In the embodiments above, each bottom surface 66a functioning as the second contact surface of the present invention is provided at the passage portion 63 of the oil supply guide 6, and each wall surface 73a functioning as the first contact surface of the present invention is provided at the covering portion 71 of the holder 7. However, the disclosure is not limited to this. Each surface functioning as the first contact surface and each surface functioning as the second contact surface may not be provided at the passage portion 63 and the covering portion 71, etc. where the oil supply guide 6 and the holder 7 overlap each other. For example, each wall surface 73a functioning as the first contact surface may be provided at the connection portion 78 of the holder 7. Each bottom surface 66a functioning as the second contact surface may be provided at the guide main body 60 of the oil supply guide 6.
In the embodiments above, the alignment of the oil supply guide 6 and the holder 7 with respect to the circumferential direction is facilitated by fitting the two protrusions 67 provided at the oil supply guide 6 into the two cutouts 74 provided at the holder 7. However, the disclosure is not limited to this. The cutouts 74 may be suitably changed as long as the cutouts 74 are concave in the extending direction of the holder 7. For example, holes may be provided instead of the cutouts 74. The number of pairs of the cutouts 74 and the protrusions 67 may not be two. The number of pairs of the cutouts 74 and the protrusions 67 may be one, or three or more. The cutouts 74 and the protrusions 67 may not be provided.
In the first embodiment described above, the groove 76 in which the packing 9 is provided is formed on the inner surface of the covering portion 71 of the holder 7. In the sixth embodiment described above, the groove 576 in which the packing 9 is provided is formed on the connection surface 78a of the connection portion 78 of the holder 7. However, the grooves 76 and 576 may not be provided.
In the first embodiment described above, two wall surfaces 73a of the holder 7 and a single bottom surface 66a of the oil supply guide 6 are provided on each side of the center axis O in the arrangement direction. The fixing member 8 is made of a material having the elastic force, and configured to sandwich the passage portion 63 by means of the elastic force from both sides of the passage portion 63 in the arrangement direction by making contact with the wall surfaces 73a and the bottom surface 66a which are provided on each side of the center axis O in the arrangement direction. However, the disclosure is not limited to this. The arrangement of wall surfaces 73a and bottom surfaces 66a may be suitably changed as long as at least the wall surfaces 73a or the bottom surfaces 66a are provided on one side of the center axis O in the arrangement direction and at least the wall surfaces 73a or the bottom surfaces 66a are provided on the other side of the center axis O in the arrangement direction. The fixing member 8 may not be made of a material having the elastic force.
In the embodiments above, the fixing member 8 is able to take the first position where each fitting portion 82 is fitted into a second space 65 and a first space 72 and the second position where each fitting portion 82 is not fitted into the second space 65 and the first space 72. In this regard, the first position is provided below the second position. However, the disclosure is not limited to this. For example, the first position and the second position may be adjacent to each other in the arrangement direction. The fixing member 8 may not take the first position and the second position while the opening 80 is inserted into the holder 7. The fixing member 8 may be removed from the holder 7 at the time of removing the fixation of the oil supply guide 6.
In the embodiments above, the fitting direction in which each fitting portion 82 is fitted into a second space 65 and a first space 72 is the up-down direction (the direction of a straight line). However, the disclosure is not limited to this. The fitting direction may be suitably changed as long as the fitting direction intersects with the circumferential direction.
In the embodiments above, each wall surface 73a functioning as the first contact surface of the present invention and each bottom surface 66a functioning as the second contact surface of the present invention are flat surfaces. However, the disclosure is not limited to this. For example, each fitting portion 82 may be a screw and surfaces functioning as the first and second contact surfaces of the present invention may define each screw groove.
In the embodiments above, the packing 9 is annular in shape. However, the disclosure is not limited to this. For example, the packing 9 may be separated into plural parts.
In the embodiments above, the oil supply guide 6 is made of ceramics. However, a material of the oil supply guide 6 is not limited to ceramics. For example, stainless steel and plated metal are available as the material of the oil supply guide 6. A part of the oil supply guide 6 may be made of ceramics and the remaining part of the oil supply guide 6 may be made of a material different from ceramics.
In the embodiments above, the holder 7 is provided between the upstream yarn guide 21 and the downstream yarn guide 22. However, the disclosure is not limited to this. Only one of the upstream and downstream yarn guides 21 and 22 may be provided, or both of the upstream and downstream yarn guides 21 and 22 may not be provided.
In the embodiments above, the false-twist texturing machine including the oiling device is described. However, the disclosure is not limited to this. The present invention can be used in textile machines of general types, each of which includes an oiling device configured to apply oil to a yarn running along a predetermined yarn path. For example, Japanese Laid-Open Patent Publication No. 2015-187324 discloses a take-up apparatus configured to take up yarns spun out from a spinning apparatus. In this take-up apparatus including a yarn separation guide configured to separate the yarns at predetermined intervals, the yarns run along predetermined yarn paths. The present invention can be used in such an apparatus.

Claims

A textile machine (1) comprising an oiling device (20) configured to apply oil to a yarn (Y) running along a predetermined yarn path,
the oiling device (20) including:
a holder (7) attached to a base (19);

an oil supply guide (6) which includes a discharge port (61a) and a pair of yarn guiding members (68) provided on both sides of the discharge port (61a) in a direction orthogonal to a yarn running direction and which is attachable to and detachable from the holder (7), the oil being discharged from the discharge port (61a), the yarn (Y) running in the yarn running direction, and the paired yarn guiding members (68) being configured to guide the yarn (Y) ;

a fixing member (8) configured to fix the oil supply guide (6) to the holder (7); and

a packing (9) provided between the holder (7) and the oil supply guide (6),

one of the oil supply guide (6) and the holder (7) being provided with a cylindrical passage portion (63) in which an oil passage (64) is formed, the oil flowing toward the discharge port (61a) in the oil passage (64),

the other of the oil supply guide (6) and the holder (7) not being provided with the passage portion (63) but being provided with a cylindrical covering portion (71) which is coaxial with the passage portion (63) and which is able to cover an outer circumferential surface of the passage portion (63),

the holder (7) being provided with at least one first contact surface (73a, 373a, 473a) which is able to make contact with the fixing member (8),

the oil supply guide (6) being provided with at least one second contact surface (66a, 266c, 366c) which is able to make contact with the fixing member (8),

the at least one first contact surface (73a, 373a, 473a) being arranged to fix the position of the fixing member (8) in a circumferential direction of the passage portion (63) by making contact with the fixing member (8), and

the at least one second contact surface (66a, 266c, 366c) being arranged to fix the position of the oil supply guide (6) in the circumferential direction by making contact with the fixing member (8) the position of which is fixed by the at least one first contact surface (73a, 373a, 473a) in the circumferential direction.
The textile machine (1) according to claim 1, wherein, one of the oil supply guide (6) and the holder (7) is provided with a concave portion (74) which is concave in an extending direction of the passage portion (63), and
the other of the oil supply guide (6) and the holder (7) is not provided with the concave portion (74) but is provided with a protrusion (67) which is able to be fitted into the concave portion (74).
The textile machine (1) according to claim 1 or 2, wherein, one of the oil supply guide (6) and the holder (7) is provided with the passage portion (63) and passage-portion contact surfaces (66a), and the passage-portion contact surfaces (66a) are first contact surfaces (73a) or second contact surfaces (66a) and provided on both sides of the oil passage (64) so as to oppose each other over the oil passage (64) in an orthogonal direction orthogonal to an extending direction of the passage portion (63).
The textile machine (1) according to claim 1 or 2, wherein, the number of first contact surfaces (73a) is at least two, and
the first contact surfaces (73a) are arranged to sandwich the fixing member (8) from both sides of the fixing member (8) in the circumferential direction.
The textile machine (1) according to claim 1 or 2, wherein, the number of second contact surfaces (266c, 366c) is at least two, and
the second contact surfaces (266c, 366c) are arranged to sandwich the fixing member (8) from both sides of the fixing member (8) in the circumferential direction.
The textile machine (1) according to any one of claims 1 to 5, wherein, one of the passage portion (63) and the covering portion (71) is provided with the at least one first contact surface (73a),
the other of the passage portion (63) and the covering portion (71) is not provided with the at least one first contact surface (73a) but is provided with the at least one second contact surface (66a, 266c),

the at least one first contact surface (73a) and the at least one second contact surface (66a, 266c) are able to be provided on a single plane, and

the fixing member (8) includes a flat surface (81a) arranged to make contact with the at least one first contact surface (73a) and the at least one second contact surface (66a, 266c) which are provided on the single plane.
The textile machine (1) according to claim 6, wherein, one of the oil supply guide (6) and the holder (7) is provided with the covering portion (71) and a connection portion (78) in which a connection passage (79) connected to one end portion of the oil passage (64) is formed,
the covering portion (71) is provided with a first orthogonal surface (73b) which is orthogonal to an extending direction of the passage portion (63) and which is oriented to the connection portion (78),

the passage portion (63) is provided with a second orthogonal surface (66b) which is orthogonal to the extending direction and which is oriented in a direction opposite to the connection portion (78),

the packing (9) is provided between an end face (63a) of the passage portion (63) and a connection surface (78a) of the connection portion (78), the one end portion of the oil passage (64) is open to the end face (63a), the connection passage (79) is open to the connection surface (78a), and the packing (9) is able to bias the oil supply guide (6) in a direction in which the first orthogonal surface (73b) approaches the second orthogonal surface (66b), and

when the flat surface (81a) of the fixing member (8) makes contact with the at least one first contact surface (73a) and the at least one second contact surface (66a, 266c), the fixing member (8) is sandwiched in the extending direction by the first orthogonal surface (73b) and the second orthogonal surface (66b).
The textile machine (1) according to claim 6, wherein, the holder (7) is provided with two third orthogonal surfaces (73b) which are provided at both end portions of the at least one first contact surface (73a) in an extending direction of the passage portion (63), which are orthogonal to the extending direction, and which oppose each other in the extending direction,
the oil supply guide (6) is provided with two fourth orthogonal surfaces (66b) which are provided at both end portions of the at least one second contact surface (66a, 266c) in the extending direction, which are orthogonal to the extending direction, and which oppose each other in the extending direction, and

the distance between the two third orthogonal surfaces (73b), the distance between the two fourth orthogonal surfaces (66b), and the length of the fixing member (8) in the extending direction are identical with one another.
The textile machine (1) according to claim 8, wherein, a groove (76) is formed on an inner surface of the covering portion (71), and
the packing (9) is provided in the groove (76).
The textile machine (1) according to any one of claims 1 to 9, wherein, at least (i) the at least one first contact surface (73a, 373a, 473a) or (ii) the at least one second contact surface (66a) is able to be provided on one side of a center axis (O) of the covering portion (71) in an orthogonal direction orthogonal to an extending direction of the passage portion (63), at least (i) the at least one first contact surface (73a, 373a, 473a) or (ii) the at least one second contact surface (66a) is able to be provided on the other side of the center axis (O) in the orthogonal direction, and
the fixing member (8) is made of a material having elastic force and configured to sandwich the passage portion (63) by means of the elastic force from both sides of the passage portion (63) in the orthogonal direction by making contact with, at least, the at least one first contact surface (73a, 373a, 473a) or the at least one second contact surface (66a) on each of both sides of the center axis (O) in the orthogonal direction.
The textile machine (1) according to any one of claims 1 to 10, wherein, the fixing member (8) is formed of a first part (81) arranged to partially make contact with the at least one first contact surface (73a) and the at least one second contact surface (66a) and a second part (83) adjacent to the first part (81), an opening (80) is formed across the first part (81) and the second part (83) in the fixing member (8),
the opening (80) has a part which is formed at the second part (83) and which is larger than the outer shape of the covering portion (71), and

the fixing member (8) is able to take a first position where the covering portion (71) is inserted into a part of the opening (80) at the first part (81) so that the fixing member (8) is in contact with the at least one first contact surface (73a) and the at least one second contact surface (66a) and a second position where the covering portion (71) is inserted into a part of the opening (80) at the second part (83) so that the fixing member (8) is not in contact with the at least one first contact surface (73a) and the at least one second contact surface (66a).
The textile machine (1) according to claim 11, wherein, the first position is provided below the second position in a vertical direction.
The textile machine (1) according to any one of claims 1 to 12, wherein, the at least one first contact surface (73a, 373a, 473a) and the at least one second contact surface (66a, 266c, 366c) are flat surfaces.
The textile machine (1) according to claim 13, wherein, the oil supply guide (6) is made of ceramics.
The textile machine (1) according to any one of claims 1 to 14, wherein, the packing (9) is annular in shape.
The textile machine (1) according to any one of claims 1 to 15, wherein, the oiling device (20) is configured to apply the oil to the yarn (Y) running in a false-twist texturing machine (1).
The textile machine (1) according to any one of claims 1 to 16, wherein, the oiling device (20) further includes two yarn regulating guides (21, 22) which are separated in the yarn running direction, and
the holder (7) is provided between the two yarn regulating guides (21, 22).